diff --git a/go.mod b/go.mod index e89ea3109..e21da9379 100644 --- a/go.mod +++ b/go.mod @@ -18,7 +18,7 @@ require ( github.com/mitchellh/mapstructure v1.5.0 github.com/netobserv/gopipes v0.3.0 github.com/netobserv/loki-client-go v0.0.0-20220927092034-f37122a54500 - github.com/netobserv/netobserv-ebpf-agent v1.6.1-crc2.0.20240905095613-6adad95c9d84 + github.com/netobserv/netobserv-ebpf-agent v1.6.1-crc2.0.20240913155426-6ac7c5ccbf59 github.com/netsampler/goflow2 v1.3.7 github.com/pkg/errors v0.9.1 github.com/prometheus/client_golang v1.20.3 @@ -45,9 +45,9 @@ require ( google.golang.org/grpc v1.66.0 google.golang.org/protobuf v1.34.2 gopkg.in/yaml.v2 v2.4.0 - k8s.io/api v0.31.0 - k8s.io/apimachinery v0.31.0 - k8s.io/client-go v0.31.0 + k8s.io/api v0.31.1 + k8s.io/apimachinery v0.31.1 + k8s.io/client-go v0.31.1 sigs.k8s.io/e2e-framework v0.4.0 ) @@ -55,8 +55,14 @@ require ( github.com/beorn7/perks v1.0.1 // indirect github.com/blang/semver/v4 v4.0.0 // indirect github.com/cenkalti/backoff/v4 v4.3.0 // indirect + github.com/cenkalti/hub v1.0.1 // indirect + github.com/cenkalti/rpc2 v0.0.0-20210604223624-c1acbc6ec984 // indirect github.com/cespare/xxhash/v2 v2.3.0 // indirect github.com/cilium/ebpf v0.16.0 // indirect + github.com/containernetworking/cni v1.1.2 // indirect + github.com/containernetworking/plugins v1.2.0 // indirect + github.com/coreos/go-iptables v0.6.0 // indirect + github.com/cpuguy83/go-md2man/v2 v2.0.3 // indirect github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect github.com/dustin/go-humanize v1.0.1 // indirect github.com/emicklei/go-restful/v3 v3.11.0 // indirect @@ -98,6 +104,8 @@ require ( github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f // indirect github.com/mxk/go-flowrate v0.0.0-20140419014527-cca7078d478f // indirect + github.com/ovn-org/libovsdb v0.7.1-0.20240820095311-ce1951614a20 // indirect + github.com/ovn-org/ovn-kubernetes/go-controller v0.0.0-20240902083137-5d2310e77f87 // indirect github.com/pelletier/go-toml/v2 v2.2.2 // indirect github.com/pierrec/lz4/v4 v4.1.17 // indirect github.com/pion/dtls/v2 v2.2.4 // indirect @@ -108,6 +116,8 @@ require ( github.com/prometheus/procfs v0.15.1 // indirect github.com/prometheus/prometheus v1.8.2-0.20201028100903-3245b3267b24 // indirect github.com/rs/xid v1.5.0 // indirect + github.com/russross/blackfriday/v2 v2.1.0 // indirect + github.com/safchain/ethtool v0.3.1-0.20231027162144-83e5e0097c91 // indirect github.com/sagikazarmark/locafero v0.4.0 // indirect github.com/sagikazarmark/slog-shim v0.1.0 // indirect github.com/sourcegraph/conc v0.3.0 // indirect @@ -115,7 +125,8 @@ require ( github.com/spf13/cast v1.6.0 // indirect github.com/stretchr/objx v0.5.2 // indirect github.com/subosito/gotenv v1.6.0 // indirect - github.com/vishvananda/netlink v1.1.0 // indirect + github.com/urfave/cli/v2 v2.2.0 // indirect + github.com/vishvananda/netlink v1.3.0 // indirect github.com/vishvananda/netns v0.0.4 // indirect github.com/x448/float16 v0.8.4 // indirect github.com/xdg-go/pbkdf2 v1.0.0 // indirect @@ -126,23 +137,26 @@ require ( go.uber.org/atomic v1.9.0 // indirect go.uber.org/multierr v1.11.0 // indirect golang.org/x/crypto v0.26.0 // indirect - golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect + golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842 // indirect golang.org/x/oauth2 v0.22.0 // indirect - golang.org/x/sys v0.24.0 // indirect + golang.org/x/sys v0.25.0 // indirect golang.org/x/term v0.23.0 // indirect golang.org/x/text v0.17.0 // indirect golang.org/x/time v0.5.0 // indirect google.golang.org/genproto/googleapis/api v0.0.0-20240822170219-fc7c04adadcd // indirect google.golang.org/genproto/googleapis/rpc v0.0.0-20240822170219-fc7c04adadcd // indirect + gopkg.in/gcfg.v1 v1.2.3 // indirect gopkg.in/inf.v0 v0.9.1 // indirect gopkg.in/ini.v1 v1.67.0 // indirect + gopkg.in/natefinch/lumberjack.v2 v2.2.1 // indirect + gopkg.in/warnings.v0 v0.1.2 // indirect gopkg.in/yaml.v3 v3.0.1 // indirect - k8s.io/component-base v0.30.1 // indirect + k8s.io/component-base v0.30.2 // indirect k8s.io/klog/v2 v2.130.1 // indirect k8s.io/kube-openapi v0.0.0-20240228011516-70dd3763d340 // indirect k8s.io/utils v0.0.0-20240711033017-18e509b52bc8 // indirect lukechampine.com/uint128 v1.2.0 // indirect - sigs.k8s.io/controller-runtime v0.18.2 // indirect + sigs.k8s.io/controller-runtime v0.18.4 // indirect sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect sigs.k8s.io/structured-merge-diff/v4 v4.4.1 // indirect sigs.k8s.io/yaml v1.4.0 // indirect diff --git a/go.sum b/go.sum index 75394b8b0..abf6337b7 100644 --- a/go.sum +++ b/go.sum @@ -85,6 +85,8 @@ github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuy github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0= github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0= github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho= +github.com/alexflint/go-filemutex v1.2.0 h1:1v0TJPDtlhgpW4nJ+GvxCLSlUDC3+gW0CQQvlmfDR/s= +github.com/alexflint/go-filemutex v1.2.0/go.mod h1:mYyQSWvw9Tx2/H2n9qXPb52tTYfE0pZAWcBq5mK025c= github.com/andreyvit/diff v0.0.0-20170406064948-c7f18ee00883/go.mod h1:rCTlJbsFo29Kk6CurOXKm700vrz8f0KW0JNfpkRJY/8= github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY= github.com/apache/arrow/go/arrow v0.0.0-20191024131854-af6fa24be0db/go.mod h1:VTxUBvSJ3s3eHAg65PNgrsn5BtqCRPdmyXh6rAfdxN0= @@ -120,10 +122,16 @@ github.com/bmizerany/pat v0.0.0-20170815010413-6226ea591a40/go.mod h1:8rLXio+Wji github.com/boltdb/bolt v1.3.1/go.mod h1:clJnj/oiGkjum5o1McbSZDSLxVThjynRyGBgiAx27Ps= github.com/c-bata/go-prompt v0.2.2/go.mod h1:VzqtzE2ksDBcdln8G7mk2RX9QyGjH+OVqOCSiVIqS34= github.com/casbin/casbin/v2 v2.1.2/go.mod h1:YcPU1XXisHhLzuxH9coDNf2FbKpjGlbCg3n9yuLkIJQ= +github.com/cenk/hub v1.0.1 h1:RBwXNOF4a8KjD8BJ08XqN8KbrqaGiQLDrgvUGJSHuPA= +github.com/cenk/hub v1.0.1/go.mod h1:rJM1LNAW0ppT8FMMuPK6c2NP/R2nH/UthtuRySSaf6Y= github.com/cenkalti/backoff v2.2.1+incompatible/go.mod h1:90ReRw6GdpyfrHakVjL/QHaoyV4aDUVVkXQJJJ3NXXM= github.com/cenkalti/backoff/v4 v4.0.2/go.mod h1:eEew/i+1Q6OrCDZh3WiXYv3+nJwBASZ8Bog/87DQnVg= github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8= github.com/cenkalti/backoff/v4 v4.3.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE= +github.com/cenkalti/hub v1.0.1 h1:UMtjc6dHSaOQTO15SVA50MBIR9zQwvsukQupDrkIRtg= +github.com/cenkalti/hub v1.0.1/go.mod h1:tcYwtS3a2d9NO/0xDXVJWx3IedurUjYCqFCmpi0lpHs= +github.com/cenkalti/rpc2 v0.0.0-20210604223624-c1acbc6ec984 h1:CNwZyGS6KpfaOWbh2yLkSy3rSTUh3jub9CzpFpP6PVQ= +github.com/cenkalti/rpc2 v0.0.0-20210604223624-c1acbc6ec984/go.mod h1:v2npkhrXyk5BCnkNIiPdRI23Uq6uWPUQGL2hnRcRr/M= github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU= github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc= github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs= @@ -142,10 +150,17 @@ github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGX github.com/cockroachdb/datadriven v0.0.0-20190809214429-80d97fb3cbaa/go.mod h1:zn76sxSg3SzpJ0PPJaLDCu+Bu0Lg3sKTORVIj19EIF8= github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd/go.mod h1:sE/e/2PUdi/liOCUjSTXgM1o87ZssimdTWN964YiIeI= github.com/containerd/containerd v1.3.4/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA= +github.com/containernetworking/cni v1.1.2 h1:wtRGZVv7olUHMOqouPpn3cXJWpJgM6+EUl31EQbXALQ= +github.com/containernetworking/cni v1.1.2/go.mod h1:sDpYKmGVENF3s6uvMvGgldDWeG8dMxakj/u+i9ht9vw= +github.com/containernetworking/plugins v1.2.0 h1:SWgg3dQG1yzUo4d9iD8cwSVh1VqI+bP7mkPDoSfP9VU= +github.com/containernetworking/plugins v1.2.0/go.mod h1:/VjX4uHecW5vVimFa1wkG4s+r/s9qIfPdqlLF4TW8c4= +github.com/coreos/go-iptables v0.6.0 h1:is9qnZMPYjLd8LYqmm/qlE+wwEgJIkTYdhV3rfZo4jk= +github.com/coreos/go-iptables v0.6.0/go.mod h1:Qe8Bv2Xik5FyTXwgIbLAnv2sWSBmvWdFETJConOQ//Q= github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk= github.com/coreos/go-systemd v0.0.0-20180511133405-39ca1b05acc7/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4= github.com/coreos/pkg v0.0.0-20160727233714-3ac0863d7acf/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA= github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU= +github.com/cpuguy83/go-md2man/v2 v2.0.3 h1:qMCsGGgs+MAzDFyp9LpAe1Lqy/fY/qCovCm0qnXZOBM= github.com/cpuguy83/go-md2man/v2 v2.0.3/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o= github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY= github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E= @@ -183,8 +198,8 @@ github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.m github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98= github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c= github.com/evanphx/json-patch v4.9.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk= -github.com/evanphx/json-patch v4.12.0+incompatible h1:4onqiflcdA9EOZ4RxV643DvftH5pOlLGNtQ5lPWQu84= -github.com/evanphx/json-patch v4.12.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk= +github.com/evanphx/json-patch v5.6.0+incompatible h1:jBYDEEiFBPxA0v50tFdvOzQQTCvpL6mnFh5mB2/l16U= +github.com/evanphx/json-patch v5.6.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk= github.com/evanphx/json-patch/v5 v5.9.0 h1:kcBlZQbplgElYIlo/n1hJbls2z/1awpXxpRi0/FOJfg= github.com/evanphx/json-patch/v5 v5.9.0/go.mod h1:VNkHZ/282BpEyt/tObQO8s5CMPmYYq14uClGH4abBuQ= github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4= @@ -304,6 +319,7 @@ github.com/go-quicktest/qt v1.101.0/go.mod h1:14Bz/f7NwaXPtdYEgzsx46kqSxVwTbzVZs github.com/go-sql-driver/mysql v1.4.0/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w= github.com/go-sql-driver/mysql v1.4.1/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w= github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY= +github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0/go.mod h1:fyg7847qk6SyHyPtNmDHnmrv/HOrqktSC+C9fM+CJOE= github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 h1:tfuBGBXKqDEevZMzYi5KSi8KkcZtzBcTgAUUtapy0OI= github.com/go-task/slim-sprig/v3 v3.0.0 h1:sUs3vkvUymDpBKi3qH1YSqBQk9+9D/8M2mN1vB6EwHI= github.com/go-task/slim-sprig/v3 v3.0.0/go.mod h1:W848ghGpv3Qj3dhTPRyJypKRiqCdHZiAzKg9hl15HA8= @@ -367,6 +383,8 @@ github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvq github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8= github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI= github.com/golang/protobuf v1.4.3/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI= +github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk= +github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY= github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek= github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps= github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q= @@ -413,6 +431,7 @@ github.com/google/pprof v0.0.0-20200229191704-1ebb73c60ed3/go.mod h1:ZgVRPoUq/hf github.com/google/pprof v0.0.0-20200430221834-fc25d7d30c6d/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM= github.com/google/pprof v0.0.0-20200708004538-1a94d8640e99/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM= github.com/google/pprof v0.0.0-20201007051231-1066cbb265c7/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM= +github.com/google/pprof v0.0.0-20210407192527-94a9f03dee38/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE= github.com/google/pprof v0.0.0-20240525223248-4bfdf5a9a2af h1:kmjWCqn2qkEml422C2Rrd27c3VGxi6a/6HNq8QmHRKM= github.com/google/pprof v0.0.0-20240525223248-4bfdf5a9a2af/go.mod h1:K1liHPHnj73Fdn/EKuT8nrFqBihUSKXoLYU0BuatOYo= github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI= @@ -480,6 +499,7 @@ github.com/hetznercloud/hcloud-go v1.22.0/go.mod h1:xng8lbDUg+xM1dgc0yGHX5EeqbwI github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU= github.com/hudl/fargo v1.3.0/go.mod h1:y3CKSmjA+wD2gak7sUSXTAoopbhU08POFhmITJgmKTg= github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc= +github.com/ianlancetaylor/demangle v0.0.0-20200824232613-28f6c0f3b639/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc= github.com/imdario/mergo v0.3.5/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJh5FfA= github.com/imdario/mergo v0.3.15 h1:M8XP7IuFNsqUx6VPK2P9OSmsYsI/YFaGil0uD21V3dM= github.com/imdario/mergo v0.3.15/go.mod h1:WBLT9ZmE3lPoWsEzCh9LPo3TiwVN+ZKEjmz+hD27ysY= @@ -528,6 +548,8 @@ github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7V github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM= github.com/jung-kurt/gofpdf v1.0.3-0.20190309125859-24315acbbda5/go.mod h1:7Id9E/uU8ce6rXgefFLlgrJj/GYY22cpxn+r32jIOes= github.com/jwilder/encoding 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golang.org/x/exp v0.0.0-20191227195350-da58074b4299/go.mod h1:2RIsYlXP63K8oxa1u0 golang.org/x/exp v0.0.0-20200119233911-0405dc783f0a/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4= golang.org/x/exp v0.0.0-20200207192155-f17229e696bd/go.mod h1:J/WKrq2StrnmMY6+EHIKF9dgMWnmCNThgcyBT1FY9mM= golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6/go.mod h1:3jZMyOhIsHpP37uCMkUooju7aAi5cS1Q23tOzKc+0MU= -golang.org/x/exp v0.0.0-20230905200255-921286631fa9 h1:GoHiUyI/Tp2nVkLI2mCxVkOjsbSXD66ic0XW0js0R9g= -golang.org/x/exp v0.0.0-20230905200255-921286631fa9/go.mod h1:S2oDrQGGwySpoQPVqRShND87VCbxmc6bL1Yd2oYrm6k= +golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842 h1:vr/HnozRka3pE4EsMEg1lgkXJkTFJCVUX+S/ZT6wYzM= +golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842/go.mod h1:XtvwrStGgqGPLc4cjQfWqZHG1YFdYs6swckp8vpsjnc= golang.org/x/image v0.0.0-20180708004352-c73c2afc3b81/go.mod h1:ux5Hcp/YLpHSI86hEcLt0YII63i6oz57MZXIpbrjZUs= golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js= golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0= @@ -1047,6 +1091,7 @@ golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e/go.mod h1:qpuaurCH72eLCgpAm/ golang.org/x/net v0.0.0-20200501053045-e0ff5e5a1de5/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A= golang.org/x/net v0.0.0-20200506145744-7e3656a0809f/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A= golang.org/x/net v0.0.0-20200513185701-a91f0712d120/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A= +golang.org/x/net v0.0.0-20200520004742-59133d7f0dd7/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A= golang.org/x/net v0.0.0-20200520182314-0ba52f642ac2/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A= golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA= golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA= @@ -1054,6 +1099,7 @@ golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81R golang.org/x/net v0.0.0-20201006153459-a7d1128ccaa0/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU= golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU= golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg= +golang.org/x/net v0.0.0-20210428140749-89ef3d95e781/go.mod h1:OJAsFXCWl8Ukc7SiCT/9KSuxbyM7479/AVlXFRxuMCk= golang.org/x/net v0.0.0-20210525063256-abc453219eb5/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y= golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c= golang.org/x/net v0.1.0/go.mod h1:Cx3nUiGt4eDBEyega/BKRp+/AlGL8hYe7U9odMt2Cco= @@ -1109,17 +1155,18 @@ golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7w golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20190531175056-4c3a928424d2/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= -golang.org/x/sys v0.0.0-20190606203320-7fc4e5ec1444/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20190616124812-15dcb6c0061f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20190826190057-c7b8b68b1456/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20190904154756-749cb33beabd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20190922100055-0a153f010e69/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20190924154521-2837fb4f24fe/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20191001151750-bb3f8db39f24/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20191005200804-aed5e4c7ecf9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20191008105621-543471e840be/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20191128015809-6d18c012aee9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20191204072324-ce4227a45e2e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20191220142924-d4481acd189f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= @@ -1149,6 +1196,7 @@ golang.org/x/sys v0.0.0-20200905004654-be1d3432aa8f/go.mod h1:h1NjWce9XRLGQEsW7w golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20201008064518-c1f3e3309c71/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20210112080510-489259a85091/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20210603081109-ebe580a85c40/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= @@ -1163,9 +1211,10 @@ golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.4.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.10.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= -golang.org/x/sys v0.24.0 h1:Twjiwq9dn6R1fQcyiK+wQyHWfaz/BJB+YIpzU/Cv3Xg= -golang.org/x/sys v0.24.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA= +golang.org/x/sys v0.25.0 h1:r+8e+loiHxRqhXVl6ML1nO3l1+oFoWbnlu2Ehimmi34= +golang.org/x/sys v0.25.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA= golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8= golang.org/x/term v0.1.0/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8= @@ -1262,6 +1311,7 @@ golang.org/x/tools v0.0.0-20200804011535-6c149bb5ef0d/go.mod h1:njjCfa9FT2d7l9Bc golang.org/x/tools v0.0.0-20200825202427-b303f430e36d/go.mod h1:njjCfa9FT2d7l9Bc6FUM5FLjQPp3cFF28FI3qnDFljA= golang.org/x/tools v0.0.0-20200904185747-39188db58858/go.mod h1:Cj7w3i3Rnn0Xh82ur9kSqwfTHTeVxaDqrfMjpcNT6bE= golang.org/x/tools v0.0.0-20201020161133-226fd2f889ca/go.mod h1:z6u4i615ZeAfBE4XtMziQW1fSVJXACjjbWkB/mvPzlU= +golang.org/x/tools v0.0.0-20201224043029-2b0845dc783e/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA= golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA= golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc= golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU= @@ -1372,6 +1422,7 @@ google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpAD google.golang.org/protobuf v1.24.0/go.mod h1:r/3tXBNzIEhYS9I1OUVjXDlt8tc493IdKGjtUeSXeh4= google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c= google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw= +google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc= google.golang.org/protobuf v1.34.2 h1:6xV6lTsCfpGD21XK49h7MhtcApnLqkfYgPcdHftf6hg= google.golang.org/protobuf v1.34.2/go.mod h1:qYOHts0dSfpeUzUFpOMr/WGzszTmLH+DiWniOlNbLDw= gopkg.in/DATA-DOG/go-sqlmock.v1 v1.3.0 h1:FVCohIoYO7IJoDDVpV2pdq7SgrMH6wHnuTyrdrxJNoY= @@ -1387,14 +1438,20 @@ gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI= gopkg.in/evanphx/json-patch.v4 v4.12.0 h1:n6jtcsulIzXPJaxegRbvFNNrZDjbij7ny3gmSPG+6V4= gopkg.in/evanphx/json-patch.v4 v4.12.0/go.mod h1:p8EYWUEYMpynmqDbY58zCKCFZw8pRWMG4EsWvDvM72M= gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys= 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gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw= +gopkg.in/warnings.v0 v0.1.2 h1:wFXVbFY8DY5/xOe1ECiWdKCzZlxgshcYVNkBHstARME= gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI= gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74= gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= @@ -1420,18 +1477,18 @@ honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k= honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k= k8s.io/api v0.19.2/go.mod h1:IQpK0zFQ1xc5iNIQPqzgoOwuFugaYHK4iCknlAQP9nI= -k8s.io/api v0.31.0 h1:b9LiSjR2ym/SzTOlfMHm1tr7/21aD7fSkqgD/CVJBCo= -k8s.io/api v0.31.0/go.mod h1:0YiFF+JfFxMM6+1hQei8FY8M7s1Mth+z/q7eF1aJkTE= -k8s.io/apiextensions-apiserver v0.30.0 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h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4= rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0= rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA= -sigs.k8s.io/controller-runtime v0.18.2 h1:RqVW6Kpeaji67CY5nPEfRz6ZfFMk0lWQlNrLqlNpx+Q= -sigs.k8s.io/controller-runtime v0.18.2/go.mod h1:tuAt1+wbVsXIT8lPtk5RURxqAnq7xkpv2Mhttslg7Hw= +sigs.k8s.io/controller-runtime v0.18.4 h1:87+guW1zhvuPLh1PHybKdYFLU0YJp4FhJRmiHvm5BZw= +sigs.k8s.io/controller-runtime v0.18.4/go.mod h1:TVoGrfdpbA9VRFaRnKgk9P5/atA0pMwq+f+msb9M8Sg= sigs.k8s.io/e2e-framework v0.4.0 h1:4yYmFDNNoTnazqmZJXQ6dlQF1vrnDbutmxlyvBpC5rY= sigs.k8s.io/e2e-framework v0.4.0/go.mod h1:JilFQPF1OL1728ABhMlf9huse7h+uBJDXl9YeTs49A8= sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd h1:EDPBXCAspyGV4jQlpZSudPeMmr1bNJefnuqLsRAsHZo= diff --git a/vendor/github.com/cenkalti/hub/.gitignore b/vendor/github.com/cenkalti/hub/.gitignore new file mode 100644 index 000000000..00268614f --- /dev/null +++ b/vendor/github.com/cenkalti/hub/.gitignore @@ -0,0 +1,22 @@ +# Compiled Object files, Static and Dynamic libs (Shared Objects) +*.o +*.a +*.so + +# Folders +_obj +_test + +# Architecture specific extensions/prefixes +*.[568vq] +[568vq].out + +*.cgo1.go +*.cgo2.c +_cgo_defun.c +_cgo_gotypes.go +_cgo_export.* + +_testmain.go + +*.exe diff --git a/vendor/github.com/cenkalti/hub/.travis.yml b/vendor/github.com/cenkalti/hub/.travis.yml new file mode 100644 index 000000000..b05e4c53f --- /dev/null +++ b/vendor/github.com/cenkalti/hub/.travis.yml @@ -0,0 +1,3 @@ +language: go +go: 1.2 + diff --git a/vendor/github.com/cenkalti/hub/LICENSE b/vendor/github.com/cenkalti/hub/LICENSE new file mode 100644 index 000000000..89b817996 --- /dev/null +++ b/vendor/github.com/cenkalti/hub/LICENSE @@ -0,0 +1,20 @@ +The MIT License (MIT) + +Copyright (c) 2014 Cenk Altı + +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of +the Software, and to permit persons to whom the Software is furnished to do so, +subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS +FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR +COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER +IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/vendor/github.com/cenkalti/hub/README.md b/vendor/github.com/cenkalti/hub/README.md new file mode 100644 index 000000000..d3f211818 --- /dev/null +++ b/vendor/github.com/cenkalti/hub/README.md @@ -0,0 +1,5 @@ +hub +=== + +[![GoDoc](https://godoc.org/github.com/cenkalti/hub?status.png)](https://godoc.org/github.com/cenkalti/hub) +[![Build Status](https://travis-ci.org/cenkalti/hub.png)](https://travis-ci.org/cenkalti/hub) diff --git a/vendor/github.com/cenkalti/hub/hub.go b/vendor/github.com/cenkalti/hub/hub.go new file mode 100644 index 000000000..24c5efa86 --- /dev/null +++ b/vendor/github.com/cenkalti/hub/hub.go @@ -0,0 +1,82 @@ +// Package hub provides a simple event dispatcher for publish/subscribe pattern. +package hub + +import "sync" + +type Kind int + +// Event is an interface for published events. +type Event interface { + Kind() Kind +} + +// Hub is an event dispatcher, publishes events to the subscribers +// which are subscribed for a specific event type. +// Optimized for publish calls. +// The handlers may be called in order different than they are registered. +type Hub struct { + subscribers map[Kind][]handler + m sync.RWMutex + seq uint64 +} + +type handler struct { + f func(Event) + id uint64 +} + +// Subscribe registers f for the event of a specific kind. +func (h *Hub) Subscribe(kind Kind, f func(Event)) (cancel func()) { + var cancelled bool + h.m.Lock() + h.seq++ + id := h.seq + if h.subscribers == nil { + h.subscribers = make(map[Kind][]handler) + } + h.subscribers[kind] = append(h.subscribers[kind], handler{id: id, f: f}) + h.m.Unlock() + return func() { + h.m.Lock() + if cancelled { + h.m.Unlock() + return + } + cancelled = true + a := h.subscribers[kind] + for i, f := range a { + if f.id == id { + a[i], h.subscribers[kind] = a[len(a)-1], a[:len(a)-1] + break + } + } + if len(a) == 0 { + delete(h.subscribers, kind) + } + h.m.Unlock() + } +} + +// Publish an event to the subscribers. +func (h *Hub) Publish(e Event) { + h.m.RLock() + if handlers, ok := h.subscribers[e.Kind()]; ok { + for _, h := range handlers { + h.f(e) + } + } + h.m.RUnlock() +} + +// DefaultHub is the default Hub used by Publish and Subscribe. +var DefaultHub Hub + +// Subscribe registers f for the event of a specific kind in the DefaultHub. +func Subscribe(kind Kind, f func(Event)) (cancel func()) { + return DefaultHub.Subscribe(kind, f) +} + +// Publish an event to the subscribers in DefaultHub. +func Publish(e Event) { + DefaultHub.Publish(e) +} diff --git a/vendor/github.com/cenkalti/rpc2/.gitignore b/vendor/github.com/cenkalti/rpc2/.gitignore new file mode 100644 index 000000000..836562412 --- /dev/null +++ b/vendor/github.com/cenkalti/rpc2/.gitignore @@ -0,0 +1,23 @@ +# Compiled Object files, Static and Dynamic libs (Shared Objects) +*.o +*.a +*.so + +# Folders +_obj +_test + +# Architecture specific extensions/prefixes +*.[568vq] +[568vq].out + +*.cgo1.go +*.cgo2.c +_cgo_defun.c +_cgo_gotypes.go +_cgo_export.* + +_testmain.go + +*.exe +*.test diff --git a/vendor/github.com/cenkalti/rpc2/.travis.yml b/vendor/github.com/cenkalti/rpc2/.travis.yml new file mode 100644 index 000000000..ae8233c2b --- /dev/null +++ b/vendor/github.com/cenkalti/rpc2/.travis.yml @@ -0,0 +1,9 @@ +language: go + +go: + - 1.15 + - tip + +arch: + - amd64 + - ppc64le diff --git a/vendor/github.com/cenkalti/rpc2/LICENSE b/vendor/github.com/cenkalti/rpc2/LICENSE new file mode 100644 index 000000000..d565b1b1f --- /dev/null +++ b/vendor/github.com/cenkalti/rpc2/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2014 Cenk Altı + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. \ No newline at end of file diff --git a/vendor/github.com/cenkalti/rpc2/README.md b/vendor/github.com/cenkalti/rpc2/README.md new file mode 100644 index 000000000..3dffd26e4 --- /dev/null +++ b/vendor/github.com/cenkalti/rpc2/README.md @@ -0,0 +1,82 @@ +rpc2 +==== + +[![GoDoc](https://godoc.org/github.com/cenkalti/rpc2?status.png)](https://godoc.org/github.com/cenkalti/rpc2) +[![Build Status](https://travis-ci.org/cenkalti/rpc2.png)](https://travis-ci.org/cenkalti/rpc2) + +rpc2 is a fork of net/rpc package in the standard library. +The main goal is to add bi-directional support to calls. +That means server can call the methods of client. +This is not possible with net/rpc package. +In order to do this it adds a `*Client` argument to method signatures. + +Install +-------- + + go get github.com/cenkalti/rpc2 + +Example server +--------------- + +```go +package main + +import ( + "fmt" + "net" + + "github.com/cenkalti/rpc2" +) + +type Args struct{ A, B int } +type Reply int + +func main() { + srv := rpc2.NewServer() + srv.Handle("add", func(client *rpc2.Client, args *Args, reply *Reply) error { + + // Reversed call (server to client) + var rep Reply + client.Call("mult", Args{2, 3}, &rep) + fmt.Println("mult result:", rep) + + *reply = Reply(args.A + args.B) + return nil + }) + + lis, _ := net.Listen("tcp", "127.0.0.1:5000") + srv.Accept(lis) +} +``` + +Example Client +--------------- + +```go +package main + +import ( + "fmt" + "net" + + "github.com/cenkalti/rpc2" +) + +type Args struct{ A, B int } +type Reply int + +func main() { + conn, _ := net.Dial("tcp", "127.0.0.1:5000") + + clt := rpc2.NewClient(conn) + clt.Handle("mult", func(client *rpc2.Client, args *Args, reply *Reply) error { + *reply = Reply(args.A * args.B) + return nil + }) + go clt.Run() + + var rep Reply + clt.Call("add", Args{1, 2}, &rep) + fmt.Println("add result:", rep) +} +``` diff --git a/vendor/github.com/cenkalti/rpc2/client.go b/vendor/github.com/cenkalti/rpc2/client.go new file mode 100644 index 000000000..cc9956976 --- /dev/null +++ b/vendor/github.com/cenkalti/rpc2/client.go @@ -0,0 +1,364 @@ +// Package rpc2 provides bi-directional RPC client and server similar to net/rpc. +package rpc2 + +import ( + "context" + "errors" + "io" + "log" + "reflect" + "sync" +) + +// Client represents an RPC Client. +// There may be multiple outstanding Calls associated +// with a single Client, and a Client may be used by +// multiple goroutines simultaneously. +type Client struct { + mutex sync.Mutex // protects pending, seq, request + sending sync.Mutex + request Request // temp area used in send() + seq uint64 + pending map[uint64]*Call + closing bool + shutdown bool + server bool + codec Codec + handlers map[string]*handler + disconnect chan struct{} + State *State // additional information to associate with client + blocking bool // whether to block request handling +} + +// NewClient returns a new Client to handle requests to the +// set of services at the other end of the connection. +// It adds a buffer to the write side of the connection so +// the header and payload are sent as a unit. +func NewClient(conn io.ReadWriteCloser) *Client { + return NewClientWithCodec(NewGobCodec(conn)) +} + +// NewClientWithCodec is like NewClient but uses the specified +// codec to encode requests and decode responses. +func NewClientWithCodec(codec Codec) *Client { + return &Client{ + codec: codec, + pending: make(map[uint64]*Call), + handlers: make(map[string]*handler), + disconnect: make(chan struct{}), + seq: 1, // 0 means notification. + } +} + +// SetBlocking puts the client in blocking mode. +// In blocking mode, received requests are processes synchronously. +// If you have methods that may take a long time, other subsequent requests may time out. +func (c *Client) SetBlocking(blocking bool) { + c.blocking = blocking +} + +// Run the client's read loop. +// You must run this method before calling any methods on the server. +func (c *Client) Run() { + c.readLoop() +} + +// DisconnectNotify returns a channel that is closed +// when the client connection has gone away. +func (c *Client) DisconnectNotify() chan struct{} { + return c.disconnect +} + +// Handle registers the handler function for the given method. If a handler already exists for method, Handle panics. +func (c *Client) Handle(method string, handlerFunc interface{}) { + addHandler(c.handlers, method, handlerFunc) +} + +// readLoop reads messages from codec. +// It reads a reqeust or a response to the previous request. +// If the message is request, calls the handler function. +// If the message is response, sends the reply to the associated call. +func (c *Client) readLoop() { + var err error + var req Request + var resp Response + for err == nil { + req = Request{} + resp = Response{} + if err = c.codec.ReadHeader(&req, &resp); err != nil { + break + } + + if req.Method != "" { + // request comes to server + if err = c.readRequest(&req); err != nil { + debugln("rpc2: error reading request:", err.Error()) + } + } else { + // response comes to client + if err = c.readResponse(&resp); err != nil { + debugln("rpc2: error reading response:", err.Error()) + } + } + } + // Terminate pending calls. + c.sending.Lock() + c.mutex.Lock() + c.shutdown = true + closing := c.closing + if err == io.EOF { + if closing { + err = ErrShutdown + } else { + err = io.ErrUnexpectedEOF + } + } + for _, call := range c.pending { + call.Error = err + call.done() + } + c.mutex.Unlock() + c.sending.Unlock() + if err != io.EOF && !closing && !c.server { + debugln("rpc2: client protocol error:", err) + } + close(c.disconnect) + if !closing { + c.codec.Close() + } +} + +func (c *Client) handleRequest(req Request, method *handler, argv reflect.Value) { + // Invoke the method, providing a new value for the reply. + replyv := reflect.New(method.replyType.Elem()) + + returnValues := method.fn.Call([]reflect.Value{reflect.ValueOf(c), argv, replyv}) + + // Do not send response if request is a notification. + if req.Seq == 0 { + return + } + + // The return value for the method is an error. + errInter := returnValues[0].Interface() + errmsg := "" + if errInter != nil { + errmsg = errInter.(error).Error() + } + resp := &Response{ + Seq: req.Seq, + Error: errmsg, + } + if err := c.codec.WriteResponse(resp, replyv.Interface()); err != nil { + debugln("rpc2: error writing response:", err.Error()) + } +} + +func (c *Client) readRequest(req *Request) error { + method, ok := c.handlers[req.Method] + if !ok { + resp := &Response{ + Seq: req.Seq, + Error: "rpc2: can't find method " + req.Method, + } + return c.codec.WriteResponse(resp, resp) + } + + // Decode the argument value. + var argv reflect.Value + argIsValue := false // if true, need to indirect before calling. + if method.argType.Kind() == reflect.Ptr { + argv = reflect.New(method.argType.Elem()) + } else { + argv = reflect.New(method.argType) + argIsValue = true + } + // argv guaranteed to be a pointer now. + if err := c.codec.ReadRequestBody(argv.Interface()); err != nil { + return err + } + if argIsValue { + argv = argv.Elem() + } + + if c.blocking { + c.handleRequest(*req, method, argv) + } else { + go c.handleRequest(*req, method, argv) + } + + return nil +} + +func (c *Client) readResponse(resp *Response) error { + seq := resp.Seq + c.mutex.Lock() + call := c.pending[seq] + delete(c.pending, seq) + c.mutex.Unlock() + + var err error + switch { + case call == nil: + // We've got no pending call. That usually means that + // WriteRequest partially failed, and call was already + // removed; response is a server telling us about an + // error reading request body. We should still attempt + // to read error body, but there's no one to give it to. + err = c.codec.ReadResponseBody(nil) + if err != nil { + err = errors.New("reading error body: " + err.Error()) + } + case resp.Error != "": + // We've got an error response. Give this to the request; + // any subsequent requests will get the ReadResponseBody + // error if there is one. + call.Error = ServerError(resp.Error) + err = c.codec.ReadResponseBody(nil) + if err != nil { + err = errors.New("reading error body: " + err.Error()) + } + call.done() + default: + err = c.codec.ReadResponseBody(call.Reply) + if err != nil { + call.Error = errors.New("reading body " + err.Error()) + } + call.done() + } + + return err +} + +// Close waits for active calls to finish and closes the codec. +func (c *Client) Close() error { + c.mutex.Lock() + if c.shutdown || c.closing { + c.mutex.Unlock() + return ErrShutdown + } + c.closing = true + c.mutex.Unlock() + return c.codec.Close() +} + +// Go invokes the function asynchronously. It returns the Call structure representing +// the invocation. The done channel will signal when the call is complete by returning +// the same Call object. If done is nil, Go will allocate a new channel. +// If non-nil, done must be buffered or Go will deliberately crash. +func (c *Client) Go(method string, args interface{}, reply interface{}, done chan *Call) *Call { + call := new(Call) + call.Method = method + call.Args = args + call.Reply = reply + if done == nil { + done = make(chan *Call, 10) // buffered. + } else { + // If caller passes done != nil, it must arrange that + // done has enough buffer for the number of simultaneous + // RPCs that will be using that channel. If the channel + // is totally unbuffered, it's best not to run at all. + if cap(done) == 0 { + log.Panic("rpc2: done channel is unbuffered") + } + } + call.Done = done + c.send(call) + return call +} + +// CallWithContext invokes the named function, waits for it to complete, and +// returns its error status, or an error from Context timeout. +func (c *Client) CallWithContext(ctx context.Context, method string, args interface{}, reply interface{}) error { + call := c.Go(method, args, reply, make(chan *Call, 1)) + select { + case <-call.Done: + return call.Error + case <-ctx.Done(): + return ctx.Err() + } + return nil +} + +// Call invokes the named function, waits for it to complete, and returns its error status. +func (c *Client) Call(method string, args interface{}, reply interface{}) error { + return c.CallWithContext(context.Background(), method, args, reply) +} + +func (call *Call) done() { + select { + case call.Done <- call: + // ok + default: + // We don't want to block here. It is the caller's responsibility to make + // sure the channel has enough buffer space. See comment in Go(). + debugln("rpc2: discarding Call reply due to insufficient Done chan capacity") + } +} + +// ServerError represents an error that has been returned from +// the remote side of the RPC connection. +type ServerError string + +func (e ServerError) Error() string { + return string(e) +} + +// ErrShutdown is returned when the connection is closing or closed. +var ErrShutdown = errors.New("connection is shut down") + +// Call represents an active RPC. +type Call struct { + Method string // The name of the service and method to call. + Args interface{} // The argument to the function (*struct). + Reply interface{} // The reply from the function (*struct). + Error error // After completion, the error status. + Done chan *Call // Strobes when call is complete. +} + +func (c *Client) send(call *Call) { + c.sending.Lock() + defer c.sending.Unlock() + + // Register this call. + c.mutex.Lock() + if c.shutdown || c.closing { + call.Error = ErrShutdown + c.mutex.Unlock() + call.done() + return + } + seq := c.seq + c.seq++ + c.pending[seq] = call + c.mutex.Unlock() + + // Encode and send the request. + c.request.Seq = seq + c.request.Method = call.Method + err := c.codec.WriteRequest(&c.request, call.Args) + if err != nil { + c.mutex.Lock() + call = c.pending[seq] + delete(c.pending, seq) + c.mutex.Unlock() + if call != nil { + call.Error = err + call.done() + } + } +} + +// Notify sends a request to the receiver but does not wait for a return value. +func (c *Client) Notify(method string, args interface{}) error { + c.sending.Lock() + defer c.sending.Unlock() + + if c.shutdown || c.closing { + return ErrShutdown + } + + c.request.Seq = 0 + c.request.Method = method + return c.codec.WriteRequest(&c.request, args) +} diff --git a/vendor/github.com/cenkalti/rpc2/codec.go b/vendor/github.com/cenkalti/rpc2/codec.go new file mode 100644 index 000000000..b097d9aaa --- /dev/null +++ b/vendor/github.com/cenkalti/rpc2/codec.go @@ -0,0 +1,125 @@ +package rpc2 + +import ( + "bufio" + "encoding/gob" + "io" + "sync" +) + +// A Codec implements reading and writing of RPC requests and responses. +// The client calls ReadHeader to read a message header. +// The implementation must populate either Request or Response argument. +// Depending on which argument is populated, ReadRequestBody or +// ReadResponseBody is called right after ReadHeader. +// ReadRequestBody and ReadResponseBody may be called with a nil +// argument to force the body to be read and then discarded. +type Codec interface { + // ReadHeader must read a message and populate either the request + // or the response by inspecting the incoming message. + ReadHeader(*Request, *Response) error + + // ReadRequestBody into args argument of handler function. + ReadRequestBody(interface{}) error + + // ReadResponseBody into reply argument of handler function. + ReadResponseBody(interface{}) error + + // WriteRequest must be safe for concurrent use by multiple goroutines. + WriteRequest(*Request, interface{}) error + + // WriteResponse must be safe for concurrent use by multiple goroutines. + WriteResponse(*Response, interface{}) error + + // Close is called when client/server finished with the connection. + Close() error +} + +// Request is a header written before every RPC call. +type Request struct { + Seq uint64 // sequence number chosen by client + Method string +} + +// Response is a header written before every RPC return. +type Response struct { + Seq uint64 // echoes that of the request + Error string // error, if any. +} + +type gobCodec struct { + rwc io.ReadWriteCloser + dec *gob.Decoder + enc *gob.Encoder + encBuf *bufio.Writer + mutex sync.Mutex +} + +type message struct { + Seq uint64 + Method string + Error string +} + +// NewGobCodec returns a new rpc2.Codec using gob encoding/decoding on conn. +func NewGobCodec(conn io.ReadWriteCloser) Codec { + buf := bufio.NewWriter(conn) + return &gobCodec{ + rwc: conn, + dec: gob.NewDecoder(conn), + enc: gob.NewEncoder(buf), + encBuf: buf, + } +} + +func (c *gobCodec) ReadHeader(req *Request, resp *Response) error { + var msg message + if err := c.dec.Decode(&msg); err != nil { + return err + } + + if msg.Method != "" { + req.Seq = msg.Seq + req.Method = msg.Method + } else { + resp.Seq = msg.Seq + resp.Error = msg.Error + } + return nil +} + +func (c *gobCodec) ReadRequestBody(body interface{}) error { + return c.dec.Decode(body) +} + +func (c *gobCodec) ReadResponseBody(body interface{}) error { + return c.dec.Decode(body) +} + +func (c *gobCodec) WriteRequest(r *Request, body interface{}) (err error) { + c.mutex.Lock() + defer c.mutex.Unlock() + if err = c.enc.Encode(r); err != nil { + return + } + if err = c.enc.Encode(body); err != nil { + return + } + return c.encBuf.Flush() +} + +func (c *gobCodec) WriteResponse(r *Response, body interface{}) (err error) { + c.mutex.Lock() + defer c.mutex.Unlock() + if err = c.enc.Encode(r); err != nil { + return + } + if err = c.enc.Encode(body); err != nil { + return + } + return c.encBuf.Flush() +} + +func (c *gobCodec) Close() error { + return c.rwc.Close() +} diff --git a/vendor/github.com/cenkalti/rpc2/debug.go b/vendor/github.com/cenkalti/rpc2/debug.go new file mode 100644 index 000000000..ec1b62521 --- /dev/null +++ b/vendor/github.com/cenkalti/rpc2/debug.go @@ -0,0 +1,12 @@ +package rpc2 + +import "log" + +// DebugLog controls the printing of internal and I/O errors. +var DebugLog = false + +func debugln(v ...interface{}) { + if DebugLog { + log.Println(v...) + } +} diff --git a/vendor/github.com/cenkalti/rpc2/jsonrpc/jsonrpc.go b/vendor/github.com/cenkalti/rpc2/jsonrpc/jsonrpc.go new file mode 100644 index 000000000..87e116887 --- /dev/null +++ b/vendor/github.com/cenkalti/rpc2/jsonrpc/jsonrpc.go @@ -0,0 +1,226 @@ +// Package jsonrpc implements a JSON-RPC ClientCodec and ServerCodec for the rpc2 package. +// +// Beside struct types, JSONCodec allows using positional arguments. +// Use []interface{} as the type of argument when sending and receiving methods. +// +// Positional arguments example: +// server.Handle("add", func(client *rpc2.Client, args []interface{}, result *float64) error { +// *result = args[0].(float64) + args[1].(float64) +// return nil +// }) +// +// var result float64 +// client.Call("add", []interface{}{1, 2}, &result) +// +package jsonrpc + +import ( + "encoding/json" + "errors" + "fmt" + "io" + "reflect" + "sync" + + "github.com/cenkalti/rpc2" +) + +type jsonCodec struct { + dec *json.Decoder // for reading JSON values + enc *json.Encoder // for writing JSON values + c io.Closer + + // temporary work space + msg message + serverRequest serverRequest + clientResponse clientResponse + + // JSON-RPC clients can use arbitrary json values as request IDs. + // Package rpc expects uint64 request IDs. + // We assign uint64 sequence numbers to incoming requests + // but save the original request ID in the pending map. + // When rpc responds, we use the sequence number in + // the response to find the original request ID. + mutex sync.Mutex // protects seq, pending + pending map[uint64]*json.RawMessage + seq uint64 +} + +// NewJSONCodec returns a new rpc2.Codec using JSON-RPC on conn. +func NewJSONCodec(conn io.ReadWriteCloser) rpc2.Codec { + return &jsonCodec{ + dec: json.NewDecoder(conn), + enc: json.NewEncoder(conn), + c: conn, + pending: make(map[uint64]*json.RawMessage), + } +} + +// serverRequest and clientResponse combined +type message struct { + Method string `json:"method"` + Params *json.RawMessage `json:"params"` + Id *json.RawMessage `json:"id"` + Result *json.RawMessage `json:"result"` + Error interface{} `json:"error"` +} + +// Unmarshal to +type serverRequest struct { + Method string `json:"method"` + Params *json.RawMessage `json:"params"` + Id *json.RawMessage `json:"id"` +} +type clientResponse struct { + Id uint64 `json:"id"` + Result *json.RawMessage `json:"result"` + Error interface{} `json:"error"` +} + +// to Marshal +type serverResponse struct { + Id *json.RawMessage `json:"id"` + Result interface{} `json:"result"` + Error interface{} `json:"error"` +} +type clientRequest struct { + Method string `json:"method"` + Params interface{} `json:"params"` + Id *uint64 `json:"id"` +} + +func (c *jsonCodec) ReadHeader(req *rpc2.Request, resp *rpc2.Response) error { + c.msg = message{} + if err := c.dec.Decode(&c.msg); err != nil { + return err + } + + if c.msg.Method != "" { + // request comes to server + c.serverRequest.Id = c.msg.Id + c.serverRequest.Method = c.msg.Method + c.serverRequest.Params = c.msg.Params + + req.Method = c.serverRequest.Method + + // JSON request id can be any JSON value; + // RPC package expects uint64. Translate to + // internal uint64 and save JSON on the side. + if c.serverRequest.Id == nil { + // Notification + } else { + c.mutex.Lock() + c.seq++ + c.pending[c.seq] = c.serverRequest.Id + c.serverRequest.Id = nil + req.Seq = c.seq + c.mutex.Unlock() + } + } else { + // response comes to client + err := json.Unmarshal(*c.msg.Id, &c.clientResponse.Id) + if err != nil { + return err + } + c.clientResponse.Result = c.msg.Result + c.clientResponse.Error = c.msg.Error + + resp.Error = "" + resp.Seq = c.clientResponse.Id + if c.clientResponse.Error != nil || c.clientResponse.Result == nil { + x, ok := c.clientResponse.Error.(string) + if !ok { + return fmt.Errorf("invalid error %v", c.clientResponse.Error) + } + if x == "" { + x = "unspecified error" + } + resp.Error = x + } + } + return nil +} + +var errMissingParams = errors.New("jsonrpc: request body missing params") + +func (c *jsonCodec) ReadRequestBody(x interface{}) error { + if x == nil { + return nil + } + if c.serverRequest.Params == nil { + return errMissingParams + } + + var err error + + // Check if x points to a slice of any kind + rt := reflect.TypeOf(x) + if rt.Kind() == reflect.Ptr && rt.Elem().Kind() == reflect.Slice { + // If it's a slice, unmarshal as is + err = json.Unmarshal(*c.serverRequest.Params, x) + } else { + // Anything else unmarshal into a slice containing x + params := &[]interface{}{x} + err = json.Unmarshal(*c.serverRequest.Params, params) + } + + return err +} + +func (c *jsonCodec) ReadResponseBody(x interface{}) error { + if x == nil { + return nil + } + return json.Unmarshal(*c.clientResponse.Result, x) +} + +func (c *jsonCodec) WriteRequest(r *rpc2.Request, param interface{}) error { + req := &clientRequest{Method: r.Method} + + // Check if param is a slice of any kind + if param != nil && reflect.TypeOf(param).Kind() == reflect.Slice { + // If it's a slice, leave as is + req.Params = param + } else { + // Put anything else into a slice + req.Params = []interface{}{param} + } + + if r.Seq == 0 { + // Notification + req.Id = nil + } else { + seq := r.Seq + req.Id = &seq + } + return c.enc.Encode(req) +} + +var null = json.RawMessage([]byte("null")) + +func (c *jsonCodec) WriteResponse(r *rpc2.Response, x interface{}) error { + c.mutex.Lock() + b, ok := c.pending[r.Seq] + if !ok { + c.mutex.Unlock() + return errors.New("invalid sequence number in response") + } + delete(c.pending, r.Seq) + c.mutex.Unlock() + + if b == nil { + // Invalid request so no id. Use JSON null. + b = &null + } + resp := serverResponse{Id: b} + if r.Error == "" { + resp.Result = x + } else { + resp.Error = r.Error + } + return c.enc.Encode(resp) +} + +func (c *jsonCodec) Close() error { + return c.c.Close() +} diff --git a/vendor/github.com/cenkalti/rpc2/server.go b/vendor/github.com/cenkalti/rpc2/server.go new file mode 100644 index 000000000..2a5be7ed6 --- /dev/null +++ b/vendor/github.com/cenkalti/rpc2/server.go @@ -0,0 +1,181 @@ +package rpc2 + +import ( + "io" + "log" + "net" + "reflect" + "unicode" + "unicode/utf8" + + "github.com/cenkalti/hub" +) + +// Precompute the reflect type for error. Can't use error directly +// because Typeof takes an empty interface value. This is annoying. +var typeOfError = reflect.TypeOf((*error)(nil)).Elem() +var typeOfClient = reflect.TypeOf((*Client)(nil)) + +const ( + clientConnected hub.Kind = iota + clientDisconnected +) + +// Server responds to RPC requests made by Client. +type Server struct { + handlers map[string]*handler + eventHub *hub.Hub +} + +type handler struct { + fn reflect.Value + argType reflect.Type + replyType reflect.Type +} + +type connectionEvent struct { + Client *Client +} + +type disconnectionEvent struct { + Client *Client +} + +func (connectionEvent) Kind() hub.Kind { return clientConnected } +func (disconnectionEvent) Kind() hub.Kind { return clientDisconnected } + +// NewServer returns a new Server. +func NewServer() *Server { + return &Server{ + handlers: make(map[string]*handler), + eventHub: &hub.Hub{}, + } +} + +// Handle registers the handler function for the given method. If a handler already exists for method, Handle panics. +func (s *Server) Handle(method string, handlerFunc interface{}) { + addHandler(s.handlers, method, handlerFunc) +} + +func addHandler(handlers map[string]*handler, mname string, handlerFunc interface{}) { + if _, ok := handlers[mname]; ok { + panic("rpc2: multiple registrations for " + mname) + } + + method := reflect.ValueOf(handlerFunc) + mtype := method.Type() + // Method needs three ins: *client, *args, *reply. + if mtype.NumIn() != 3 { + log.Panicln("method", mname, "has wrong number of ins:", mtype.NumIn()) + } + // First arg must be a pointer to rpc2.Client. + clientType := mtype.In(0) + if clientType.Kind() != reflect.Ptr { + log.Panicln("method", mname, "client type not a pointer:", clientType) + } + if clientType != typeOfClient { + log.Panicln("method", mname, "first argument", clientType.String(), "not *rpc2.Client") + } + // Second arg need not be a pointer. + argType := mtype.In(1) + if !isExportedOrBuiltinType(argType) { + log.Panicln(mname, "argument type not exported:", argType) + } + // Third arg must be a pointer. + replyType := mtype.In(2) + if replyType.Kind() != reflect.Ptr { + log.Panicln("method", mname, "reply type not a pointer:", replyType) + } + // Reply type must be exported. + if !isExportedOrBuiltinType(replyType) { + log.Panicln("method", mname, "reply type not exported:", replyType) + } + // Method needs one out. + if mtype.NumOut() != 1 { + log.Panicln("method", mname, "has wrong number of outs:", mtype.NumOut()) + } + // The return type of the method must be error. + if returnType := mtype.Out(0); returnType != typeOfError { + log.Panicln("method", mname, "returns", returnType.String(), "not error") + } + handlers[mname] = &handler{ + fn: method, + argType: argType, + replyType: replyType, + } +} + +// Is this type exported or a builtin? +func isExportedOrBuiltinType(t reflect.Type) bool { + for t.Kind() == reflect.Ptr { + t = t.Elem() + } + // PkgPath will be non-empty even for an exported type, + // so we need to check the type name as well. + return isExported(t.Name()) || t.PkgPath() == "" +} + +// Is this an exported - upper case - name? +func isExported(name string) bool { + rune, _ := utf8.DecodeRuneInString(name) + return unicode.IsUpper(rune) +} + +// OnConnect registers a function to run when a client connects. +func (s *Server) OnConnect(f func(*Client)) { + s.eventHub.Subscribe(clientConnected, func(e hub.Event) { + go f(e.(connectionEvent).Client) + }) +} + +// OnDisconnect registers a function to run when a client disconnects. +func (s *Server) OnDisconnect(f func(*Client)) { + s.eventHub.Subscribe(clientDisconnected, func(e hub.Event) { + go f(e.(disconnectionEvent).Client) + }) +} + +// Accept accepts connections on the listener and serves requests +// for each incoming connection. Accept blocks; the caller typically +// invokes it in a go statement. +func (s *Server) Accept(lis net.Listener) { + for { + conn, err := lis.Accept() + if err != nil { + log.Print("rpc.Serve: accept:", err.Error()) + return + } + go s.ServeConn(conn) + } +} + +// ServeConn runs the server on a single connection. +// ServeConn blocks, serving the connection until the client hangs up. +// The caller typically invokes ServeConn in a go statement. +// ServeConn uses the gob wire format (see package gob) on the +// connection. To use an alternate codec, use ServeCodec. +func (s *Server) ServeConn(conn io.ReadWriteCloser) { + s.ServeCodec(NewGobCodec(conn)) +} + +// ServeCodec is like ServeConn but uses the specified codec to +// decode requests and encode responses. +func (s *Server) ServeCodec(codec Codec) { + s.ServeCodecWithState(codec, NewState()) +} + +// ServeCodecWithState is like ServeCodec but also gives the ability to +// associate a state variable with the client that persists across RPC calls. +func (s *Server) ServeCodecWithState(codec Codec, state *State) { + defer codec.Close() + + // Client also handles the incoming connections. + c := NewClientWithCodec(codec) + c.server = true + c.handlers = s.handlers + c.State = state + + s.eventHub.Publish(connectionEvent{c}) + c.Run() + s.eventHub.Publish(disconnectionEvent{c}) +} diff --git a/vendor/github.com/cenkalti/rpc2/state.go b/vendor/github.com/cenkalti/rpc2/state.go new file mode 100644 index 000000000..7a4f23e6d --- /dev/null +++ b/vendor/github.com/cenkalti/rpc2/state.go @@ -0,0 +1,25 @@ +package rpc2 + +import "sync" + +type State struct { + store map[string]interface{} + m sync.RWMutex +} + +func NewState() *State { + return &State{store: make(map[string]interface{})} +} + +func (s *State) Get(key string) (value interface{}, ok bool) { + s.m.RLock() + value, ok = s.store[key] + s.m.RUnlock() + return +} + +func (s *State) Set(key string, value interface{}) { + s.m.Lock() + s.store[key] = value + s.m.Unlock() +} diff --git a/vendor/github.com/containernetworking/cni/LICENSE b/vendor/github.com/containernetworking/cni/LICENSE new file mode 100644 index 000000000..8f71f43fe --- /dev/null +++ b/vendor/github.com/containernetworking/cni/LICENSE @@ -0,0 +1,202 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "{}" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright {yyyy} {name of copyright owner} + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + diff --git a/vendor/github.com/containernetworking/cni/libcni/api.go b/vendor/github.com/containernetworking/cni/libcni/api.go new file mode 100644 index 000000000..0d82a2dd3 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/libcni/api.go @@ -0,0 +1,679 @@ +// Copyright 2015 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package libcni + +// Note this is the actual implementation of the CNI specification, which +// is reflected in the https://github.com/containernetworking/cni/blob/master/SPEC.md file +// it is typically bundled into runtime providers (i.e. containerd or cri-o would use this +// before calling runc or hcsshim). It is also bundled into CNI providers as well, for example, +// to add an IP to a container, to parse the configuration of the CNI and so on. + +import ( + "context" + "encoding/json" + "fmt" + "io/ioutil" + "os" + "path/filepath" + "strings" + + "github.com/containernetworking/cni/pkg/invoke" + "github.com/containernetworking/cni/pkg/types" + "github.com/containernetworking/cni/pkg/types/create" + "github.com/containernetworking/cni/pkg/utils" + "github.com/containernetworking/cni/pkg/version" +) + +var ( + CacheDir = "/var/lib/cni" +) + +const ( + CNICacheV1 = "cniCacheV1" +) + +// A RuntimeConf holds the arguments to one invocation of a CNI plugin +// excepting the network configuration, with the nested exception that +// the `runtimeConfig` from the network configuration is included +// here. +type RuntimeConf struct { + ContainerID string + NetNS string + IfName string + Args [][2]string + // A dictionary of capability-specific data passed by the runtime + // to plugins as top-level keys in the 'runtimeConfig' dictionary + // of the plugin's stdin data. libcni will ensure that only keys + // in this map which match the capabilities of the plugin are passed + // to the plugin + CapabilityArgs map[string]interface{} + + // DEPRECATED. Will be removed in a future release. + CacheDir string +} + +type NetworkConfig struct { + Network *types.NetConf + Bytes []byte +} + +type NetworkConfigList struct { + Name string + CNIVersion string + DisableCheck bool + Plugins []*NetworkConfig + Bytes []byte +} + +type CNI interface { + AddNetworkList(ctx context.Context, net *NetworkConfigList, rt *RuntimeConf) (types.Result, error) + CheckNetworkList(ctx context.Context, net *NetworkConfigList, rt *RuntimeConf) error + DelNetworkList(ctx context.Context, net *NetworkConfigList, rt *RuntimeConf) error + GetNetworkListCachedResult(net *NetworkConfigList, rt *RuntimeConf) (types.Result, error) + GetNetworkListCachedConfig(net *NetworkConfigList, rt *RuntimeConf) ([]byte, *RuntimeConf, error) + + AddNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) (types.Result, error) + CheckNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) error + DelNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) error + GetNetworkCachedResult(net *NetworkConfig, rt *RuntimeConf) (types.Result, error) + GetNetworkCachedConfig(net *NetworkConfig, rt *RuntimeConf) ([]byte, *RuntimeConf, error) + + ValidateNetworkList(ctx context.Context, net *NetworkConfigList) ([]string, error) + ValidateNetwork(ctx context.Context, net *NetworkConfig) ([]string, error) +} + +type CNIConfig struct { + Path []string + exec invoke.Exec + cacheDir string +} + +// CNIConfig implements the CNI interface +var _ CNI = &CNIConfig{} + +// NewCNIConfig returns a new CNIConfig object that will search for plugins +// in the given paths and use the given exec interface to run those plugins, +// or if the exec interface is not given, will use a default exec handler. +func NewCNIConfig(path []string, exec invoke.Exec) *CNIConfig { + return NewCNIConfigWithCacheDir(path, "", exec) +} + +// NewCNIConfigWithCacheDir returns a new CNIConfig object that will search for plugins +// in the given paths use the given exec interface to run those plugins, +// or if the exec interface is not given, will use a default exec handler. +// The given cache directory will be used for temporary data storage when needed. +func NewCNIConfigWithCacheDir(path []string, cacheDir string, exec invoke.Exec) *CNIConfig { + return &CNIConfig{ + Path: path, + cacheDir: cacheDir, + exec: exec, + } +} + +func buildOneConfig(name, cniVersion string, orig *NetworkConfig, prevResult types.Result, rt *RuntimeConf) (*NetworkConfig, error) { + var err error + + inject := map[string]interface{}{ + "name": name, + "cniVersion": cniVersion, + } + // Add previous plugin result + if prevResult != nil { + inject["prevResult"] = prevResult + } + + // Ensure every config uses the same name and version + orig, err = InjectConf(orig, inject) + if err != nil { + return nil, err + } + + return injectRuntimeConfig(orig, rt) +} + +// This function takes a libcni RuntimeConf structure and injects values into +// a "runtimeConfig" dictionary in the CNI network configuration JSON that +// will be passed to the plugin on stdin. +// +// Only "capabilities arguments" passed by the runtime are currently injected. +// These capabilities arguments are filtered through the plugin's advertised +// capabilities from its config JSON, and any keys in the CapabilityArgs +// matching plugin capabilities are added to the "runtimeConfig" dictionary +// sent to the plugin via JSON on stdin. For example, if the plugin's +// capabilities include "portMappings", and the CapabilityArgs map includes a +// "portMappings" key, that key and its value are added to the "runtimeConfig" +// dictionary to be passed to the plugin's stdin. +func injectRuntimeConfig(orig *NetworkConfig, rt *RuntimeConf) (*NetworkConfig, error) { + var err error + + rc := make(map[string]interface{}) + for capability, supported := range orig.Network.Capabilities { + if !supported { + continue + } + if data, ok := rt.CapabilityArgs[capability]; ok { + rc[capability] = data + } + } + + if len(rc) > 0 { + orig, err = InjectConf(orig, map[string]interface{}{"runtimeConfig": rc}) + if err != nil { + return nil, err + } + } + + return orig, nil +} + +// ensure we have a usable exec if the CNIConfig was not given one +func (c *CNIConfig) ensureExec() invoke.Exec { + if c.exec == nil { + c.exec = &invoke.DefaultExec{ + RawExec: &invoke.RawExec{Stderr: os.Stderr}, + PluginDecoder: version.PluginDecoder{}, + } + } + return c.exec +} + +type cachedInfo struct { + Kind string `json:"kind"` + ContainerID string `json:"containerId"` + Config []byte `json:"config"` + IfName string `json:"ifName"` + NetworkName string `json:"networkName"` + CniArgs [][2]string `json:"cniArgs,omitempty"` + CapabilityArgs map[string]interface{} `json:"capabilityArgs,omitempty"` + RawResult map[string]interface{} `json:"result,omitempty"` + Result types.Result `json:"-"` +} + +// getCacheDir returns the cache directory in this order: +// 1) global cacheDir from CNIConfig object +// 2) deprecated cacheDir from RuntimeConf object +// 3) fall back to default cache directory +func (c *CNIConfig) getCacheDir(rt *RuntimeConf) string { + if c.cacheDir != "" { + return c.cacheDir + } + if rt.CacheDir != "" { + return rt.CacheDir + } + return CacheDir +} + +func (c *CNIConfig) getCacheFilePath(netName string, rt *RuntimeConf) (string, error) { + if netName == "" || rt.ContainerID == "" || rt.IfName == "" { + return "", fmt.Errorf("cache file path requires network name (%q), container ID (%q), and interface name (%q)", netName, rt.ContainerID, rt.IfName) + } + return filepath.Join(c.getCacheDir(rt), "results", fmt.Sprintf("%s-%s-%s", netName, rt.ContainerID, rt.IfName)), nil +} + +func (c *CNIConfig) cacheAdd(result types.Result, config []byte, netName string, rt *RuntimeConf) error { + cached := cachedInfo{ + Kind: CNICacheV1, + ContainerID: rt.ContainerID, + Config: config, + IfName: rt.IfName, + NetworkName: netName, + CniArgs: rt.Args, + CapabilityArgs: rt.CapabilityArgs, + } + + // We need to get type.Result into cachedInfo as JSON map + // Marshal to []byte, then Unmarshal into cached.RawResult + data, err := json.Marshal(result) + if err != nil { + return err + } + + err = json.Unmarshal(data, &cached.RawResult) + if err != nil { + return err + } + + newBytes, err := json.Marshal(&cached) + if err != nil { + return err + } + + fname, err := c.getCacheFilePath(netName, rt) + if err != nil { + return err + } + if err := os.MkdirAll(filepath.Dir(fname), 0700); err != nil { + return err + } + + return ioutil.WriteFile(fname, newBytes, 0600) +} + +func (c *CNIConfig) cacheDel(netName string, rt *RuntimeConf) error { + fname, err := c.getCacheFilePath(netName, rt) + if err != nil { + // Ignore error + return nil + } + return os.Remove(fname) +} + +func (c *CNIConfig) getCachedConfig(netName string, rt *RuntimeConf) ([]byte, *RuntimeConf, error) { + var bytes []byte + + fname, err := c.getCacheFilePath(netName, rt) + if err != nil { + return nil, nil, err + } + bytes, err = ioutil.ReadFile(fname) + if err != nil { + // Ignore read errors; the cached result may not exist on-disk + return nil, nil, nil + } + + unmarshaled := cachedInfo{} + if err := json.Unmarshal(bytes, &unmarshaled); err != nil { + return nil, nil, fmt.Errorf("failed to unmarshal cached network %q config: %w", netName, err) + } + if unmarshaled.Kind != CNICacheV1 { + return nil, nil, fmt.Errorf("read cached network %q config has wrong kind: %v", netName, unmarshaled.Kind) + } + + newRt := *rt + if unmarshaled.CniArgs != nil { + newRt.Args = unmarshaled.CniArgs + } + newRt.CapabilityArgs = unmarshaled.CapabilityArgs + + return unmarshaled.Config, &newRt, nil +} + +func (c *CNIConfig) getLegacyCachedResult(netName, cniVersion string, rt *RuntimeConf) (types.Result, error) { + fname, err := c.getCacheFilePath(netName, rt) + if err != nil { + return nil, err + } + data, err := ioutil.ReadFile(fname) + if err != nil { + // Ignore read errors; the cached result may not exist on-disk + return nil, nil + } + + // Load the cached result + result, err := create.CreateFromBytes(data) + if err != nil { + return nil, err + } + + // Convert to the config version to ensure plugins get prevResult + // in the same version as the config. The cached result version + // should match the config version unless the config was changed + // while the container was running. + result, err = result.GetAsVersion(cniVersion) + if err != nil { + return nil, fmt.Errorf("failed to convert cached result to config version %q: %w", cniVersion, err) + } + return result, nil +} + +func (c *CNIConfig) getCachedResult(netName, cniVersion string, rt *RuntimeConf) (types.Result, error) { + fname, err := c.getCacheFilePath(netName, rt) + if err != nil { + return nil, err + } + fdata, err := ioutil.ReadFile(fname) + if err != nil { + // Ignore read errors; the cached result may not exist on-disk + return nil, nil + } + + cachedInfo := cachedInfo{} + if err := json.Unmarshal(fdata, &cachedInfo); err != nil || cachedInfo.Kind != CNICacheV1 { + return c.getLegacyCachedResult(netName, cniVersion, rt) + } + + newBytes, err := json.Marshal(&cachedInfo.RawResult) + if err != nil { + return nil, fmt.Errorf("failed to marshal cached network %q config: %w", netName, err) + } + + // Load the cached result + result, err := create.CreateFromBytes(newBytes) + if err != nil { + return nil, err + } + + // Convert to the config version to ensure plugins get prevResult + // in the same version as the config. The cached result version + // should match the config version unless the config was changed + // while the container was running. + result, err = result.GetAsVersion(cniVersion) + if err != nil { + return nil, fmt.Errorf("failed to convert cached result to config version %q: %w", cniVersion, err) + } + return result, nil +} + +// GetNetworkListCachedResult returns the cached Result of the previous +// AddNetworkList() operation for a network list, or an error. +func (c *CNIConfig) GetNetworkListCachedResult(list *NetworkConfigList, rt *RuntimeConf) (types.Result, error) { + return c.getCachedResult(list.Name, list.CNIVersion, rt) +} + +// GetNetworkCachedResult returns the cached Result of the previous +// AddNetwork() operation for a network, or an error. +func (c *CNIConfig) GetNetworkCachedResult(net *NetworkConfig, rt *RuntimeConf) (types.Result, error) { + return c.getCachedResult(net.Network.Name, net.Network.CNIVersion, rt) +} + +// GetNetworkListCachedConfig copies the input RuntimeConf to output +// RuntimeConf with fields updated with info from the cached Config. +func (c *CNIConfig) GetNetworkListCachedConfig(list *NetworkConfigList, rt *RuntimeConf) ([]byte, *RuntimeConf, error) { + return c.getCachedConfig(list.Name, rt) +} + +// GetNetworkCachedConfig copies the input RuntimeConf to output +// RuntimeConf with fields updated with info from the cached Config. +func (c *CNIConfig) GetNetworkCachedConfig(net *NetworkConfig, rt *RuntimeConf) ([]byte, *RuntimeConf, error) { + return c.getCachedConfig(net.Network.Name, rt) +} + +func (c *CNIConfig) addNetwork(ctx context.Context, name, cniVersion string, net *NetworkConfig, prevResult types.Result, rt *RuntimeConf) (types.Result, error) { + c.ensureExec() + pluginPath, err := c.exec.FindInPath(net.Network.Type, c.Path) + if err != nil { + return nil, err + } + if err := utils.ValidateContainerID(rt.ContainerID); err != nil { + return nil, err + } + if err := utils.ValidateNetworkName(name); err != nil { + return nil, err + } + if err := utils.ValidateInterfaceName(rt.IfName); err != nil { + return nil, err + } + + newConf, err := buildOneConfig(name, cniVersion, net, prevResult, rt) + if err != nil { + return nil, err + } + + return invoke.ExecPluginWithResult(ctx, pluginPath, newConf.Bytes, c.args("ADD", rt), c.exec) +} + +// AddNetworkList executes a sequence of plugins with the ADD command +func (c *CNIConfig) AddNetworkList(ctx context.Context, list *NetworkConfigList, rt *RuntimeConf) (types.Result, error) { + var err error + var result types.Result + for _, net := range list.Plugins { + result, err = c.addNetwork(ctx, list.Name, list.CNIVersion, net, result, rt) + if err != nil { + return nil, fmt.Errorf("plugin %s failed (add): %w", pluginDescription(net.Network), err) + } + } + + if err = c.cacheAdd(result, list.Bytes, list.Name, rt); err != nil { + return nil, fmt.Errorf("failed to set network %q cached result: %w", list.Name, err) + } + + return result, nil +} + +func (c *CNIConfig) checkNetwork(ctx context.Context, name, cniVersion string, net *NetworkConfig, prevResult types.Result, rt *RuntimeConf) error { + c.ensureExec() + pluginPath, err := c.exec.FindInPath(net.Network.Type, c.Path) + if err != nil { + return err + } + + newConf, err := buildOneConfig(name, cniVersion, net, prevResult, rt) + if err != nil { + return err + } + + return invoke.ExecPluginWithoutResult(ctx, pluginPath, newConf.Bytes, c.args("CHECK", rt), c.exec) +} + +// CheckNetworkList executes a sequence of plugins with the CHECK command +func (c *CNIConfig) CheckNetworkList(ctx context.Context, list *NetworkConfigList, rt *RuntimeConf) error { + // CHECK was added in CNI spec version 0.4.0 and higher + if gtet, err := version.GreaterThanOrEqualTo(list.CNIVersion, "0.4.0"); err != nil { + return err + } else if !gtet { + return fmt.Errorf("configuration version %q does not support the CHECK command", list.CNIVersion) + } + + if list.DisableCheck { + return nil + } + + cachedResult, err := c.getCachedResult(list.Name, list.CNIVersion, rt) + if err != nil { + return fmt.Errorf("failed to get network %q cached result: %w", list.Name, err) + } + + for _, net := range list.Plugins { + if err := c.checkNetwork(ctx, list.Name, list.CNIVersion, net, cachedResult, rt); err != nil { + return err + } + } + + return nil +} + +func (c *CNIConfig) delNetwork(ctx context.Context, name, cniVersion string, net *NetworkConfig, prevResult types.Result, rt *RuntimeConf) error { + c.ensureExec() + pluginPath, err := c.exec.FindInPath(net.Network.Type, c.Path) + if err != nil { + return err + } + + newConf, err := buildOneConfig(name, cniVersion, net, prevResult, rt) + if err != nil { + return err + } + + return invoke.ExecPluginWithoutResult(ctx, pluginPath, newConf.Bytes, c.args("DEL", rt), c.exec) +} + +// DelNetworkList executes a sequence of plugins with the DEL command +func (c *CNIConfig) DelNetworkList(ctx context.Context, list *NetworkConfigList, rt *RuntimeConf) error { + var cachedResult types.Result + + // Cached result on DEL was added in CNI spec version 0.4.0 and higher + if gtet, err := version.GreaterThanOrEqualTo(list.CNIVersion, "0.4.0"); err != nil { + return err + } else if gtet { + cachedResult, err = c.getCachedResult(list.Name, list.CNIVersion, rt) + if err != nil { + return fmt.Errorf("failed to get network %q cached result: %w", list.Name, err) + } + } + + for i := len(list.Plugins) - 1; i >= 0; i-- { + net := list.Plugins[i] + if err := c.delNetwork(ctx, list.Name, list.CNIVersion, net, cachedResult, rt); err != nil { + return fmt.Errorf("plugin %s failed (delete): %w", pluginDescription(net.Network), err) + } + } + _ = c.cacheDel(list.Name, rt) + + return nil +} + +func pluginDescription(net *types.NetConf) string { + if net == nil { + return "" + } + pluginType := net.Type + out := fmt.Sprintf("type=%q", pluginType) + name := net.Name + if name != "" { + out += fmt.Sprintf(" name=%q", name) + } + return out +} + +// AddNetwork executes the plugin with the ADD command +func (c *CNIConfig) AddNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) (types.Result, error) { + result, err := c.addNetwork(ctx, net.Network.Name, net.Network.CNIVersion, net, nil, rt) + if err != nil { + return nil, err + } + + if err = c.cacheAdd(result, net.Bytes, net.Network.Name, rt); err != nil { + return nil, fmt.Errorf("failed to set network %q cached result: %w", net.Network.Name, err) + } + + return result, nil +} + +// CheckNetwork executes the plugin with the CHECK command +func (c *CNIConfig) CheckNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) error { + // CHECK was added in CNI spec version 0.4.0 and higher + if gtet, err := version.GreaterThanOrEqualTo(net.Network.CNIVersion, "0.4.0"); err != nil { + return err + } else if !gtet { + return fmt.Errorf("configuration version %q does not support the CHECK command", net.Network.CNIVersion) + } + + cachedResult, err := c.getCachedResult(net.Network.Name, net.Network.CNIVersion, rt) + if err != nil { + return fmt.Errorf("failed to get network %q cached result: %w", net.Network.Name, err) + } + return c.checkNetwork(ctx, net.Network.Name, net.Network.CNIVersion, net, cachedResult, rt) +} + +// DelNetwork executes the plugin with the DEL command +func (c *CNIConfig) DelNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) error { + var cachedResult types.Result + + // Cached result on DEL was added in CNI spec version 0.4.0 and higher + if gtet, err := version.GreaterThanOrEqualTo(net.Network.CNIVersion, "0.4.0"); err != nil { + return err + } else if gtet { + cachedResult, err = c.getCachedResult(net.Network.Name, net.Network.CNIVersion, rt) + if err != nil { + return fmt.Errorf("failed to get network %q cached result: %w", net.Network.Name, err) + } + } + + if err := c.delNetwork(ctx, net.Network.Name, net.Network.CNIVersion, net, cachedResult, rt); err != nil { + return err + } + _ = c.cacheDel(net.Network.Name, rt) + return nil +} + +// ValidateNetworkList checks that a configuration is reasonably valid. +// - all the specified plugins exist on disk +// - every plugin supports the desired version. +// +// Returns a list of all capabilities supported by the configuration, or error +func (c *CNIConfig) ValidateNetworkList(ctx context.Context, list *NetworkConfigList) ([]string, error) { + version := list.CNIVersion + + // holding map for seen caps (in case of duplicates) + caps := map[string]interface{}{} + + errs := []error{} + for _, net := range list.Plugins { + if err := c.validatePlugin(ctx, net.Network.Type, version); err != nil { + errs = append(errs, err) + } + for c, enabled := range net.Network.Capabilities { + if !enabled { + continue + } + caps[c] = struct{}{} + } + } + + if len(errs) > 0 { + return nil, fmt.Errorf("%v", errs) + } + + // make caps list + cc := make([]string, 0, len(caps)) + for c := range caps { + cc = append(cc, c) + } + + return cc, nil +} + +// ValidateNetwork checks that a configuration is reasonably valid. +// It uses the same logic as ValidateNetworkList) +// Returns a list of capabilities +func (c *CNIConfig) ValidateNetwork(ctx context.Context, net *NetworkConfig) ([]string, error) { + caps := []string{} + for c, ok := range net.Network.Capabilities { + if ok { + caps = append(caps, c) + } + } + if err := c.validatePlugin(ctx, net.Network.Type, net.Network.CNIVersion); err != nil { + return nil, err + } + return caps, nil +} + +// validatePlugin checks that an individual plugin's configuration is sane +func (c *CNIConfig) validatePlugin(ctx context.Context, pluginName, expectedVersion string) error { + c.ensureExec() + pluginPath, err := c.exec.FindInPath(pluginName, c.Path) + if err != nil { + return err + } + if expectedVersion == "" { + expectedVersion = "0.1.0" + } + + vi, err := invoke.GetVersionInfo(ctx, pluginPath, c.exec) + if err != nil { + return err + } + for _, vers := range vi.SupportedVersions() { + if vers == expectedVersion { + return nil + } + } + return fmt.Errorf("plugin %s does not support config version %q", pluginName, expectedVersion) +} + +// GetVersionInfo reports which versions of the CNI spec are supported by +// the given plugin. +func (c *CNIConfig) GetVersionInfo(ctx context.Context, pluginType string) (version.PluginInfo, error) { + c.ensureExec() + pluginPath, err := c.exec.FindInPath(pluginType, c.Path) + if err != nil { + return nil, err + } + + return invoke.GetVersionInfo(ctx, pluginPath, c.exec) +} + +// ===== +func (c *CNIConfig) args(action string, rt *RuntimeConf) *invoke.Args { + return &invoke.Args{ + Command: action, + ContainerID: rt.ContainerID, + NetNS: rt.NetNS, + PluginArgs: rt.Args, + IfName: rt.IfName, + Path: strings.Join(c.Path, string(os.PathListSeparator)), + } +} diff --git a/vendor/github.com/containernetworking/cni/libcni/conf.go b/vendor/github.com/containernetworking/cni/libcni/conf.go new file mode 100644 index 000000000..3cd6a59d1 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/libcni/conf.go @@ -0,0 +1,270 @@ +// Copyright 2015 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package libcni + +import ( + "encoding/json" + "fmt" + "io/ioutil" + "os" + "path/filepath" + "sort" + + "github.com/containernetworking/cni/pkg/types" +) + +type NotFoundError struct { + Dir string + Name string +} + +func (e NotFoundError) Error() string { + return fmt.Sprintf(`no net configuration with name "%s" in %s`, e.Name, e.Dir) +} + +type NoConfigsFoundError struct { + Dir string +} + +func (e NoConfigsFoundError) Error() string { + return fmt.Sprintf(`no net configurations found in %s`, e.Dir) +} + +func ConfFromBytes(bytes []byte) (*NetworkConfig, error) { + conf := &NetworkConfig{Bytes: bytes, Network: &types.NetConf{}} + if err := json.Unmarshal(bytes, conf.Network); err != nil { + return nil, fmt.Errorf("error parsing configuration: %w", err) + } + if conf.Network.Type == "" { + return nil, fmt.Errorf("error parsing configuration: missing 'type'") + } + return conf, nil +} + +func ConfFromFile(filename string) (*NetworkConfig, error) { + bytes, err := ioutil.ReadFile(filename) + if err != nil { + return nil, fmt.Errorf("error reading %s: %w", filename, err) + } + return ConfFromBytes(bytes) +} + +func ConfListFromBytes(bytes []byte) (*NetworkConfigList, error) { + rawList := make(map[string]interface{}) + if err := json.Unmarshal(bytes, &rawList); err != nil { + return nil, fmt.Errorf("error parsing configuration list: %w", err) + } + + rawName, ok := rawList["name"] + if !ok { + return nil, fmt.Errorf("error parsing configuration list: no name") + } + name, ok := rawName.(string) + if !ok { + return nil, fmt.Errorf("error parsing configuration list: invalid name type %T", rawName) + } + + var cniVersion string + rawVersion, ok := rawList["cniVersion"] + if ok { + cniVersion, ok = rawVersion.(string) + if !ok { + return nil, fmt.Errorf("error parsing configuration list: invalid cniVersion type %T", rawVersion) + } + } + + disableCheck := false + if rawDisableCheck, ok := rawList["disableCheck"]; ok { + disableCheck, ok = rawDisableCheck.(bool) + if !ok { + return nil, fmt.Errorf("error parsing configuration list: invalid disableCheck type %T", rawDisableCheck) + } + } + + list := &NetworkConfigList{ + Name: name, + DisableCheck: disableCheck, + CNIVersion: cniVersion, + Bytes: bytes, + } + + var plugins []interface{} + plug, ok := rawList["plugins"] + if !ok { + return nil, fmt.Errorf("error parsing configuration list: no 'plugins' key") + } + plugins, ok = plug.([]interface{}) + if !ok { + return nil, fmt.Errorf("error parsing configuration list: invalid 'plugins' type %T", plug) + } + if len(plugins) == 0 { + return nil, fmt.Errorf("error parsing configuration list: no plugins in list") + } + + for i, conf := range plugins { + newBytes, err := json.Marshal(conf) + if err != nil { + return nil, fmt.Errorf("failed to marshal plugin config %d: %w", i, err) + } + netConf, err := ConfFromBytes(newBytes) + if err != nil { + return nil, fmt.Errorf("failed to parse plugin config %d: %w", i, err) + } + list.Plugins = append(list.Plugins, netConf) + } + + return list, nil +} + +func ConfListFromFile(filename string) (*NetworkConfigList, error) { + bytes, err := ioutil.ReadFile(filename) + if err != nil { + return nil, fmt.Errorf("error reading %s: %w", filename, err) + } + return ConfListFromBytes(bytes) +} + +func ConfFiles(dir string, extensions []string) ([]string, error) { + // In part, adapted from rkt/networking/podenv.go#listFiles + files, err := ioutil.ReadDir(dir) + switch { + case err == nil: // break + case os.IsNotExist(err): + return nil, nil + default: + return nil, err + } + + confFiles := []string{} + for _, f := range files { + if f.IsDir() { + continue + } + fileExt := filepath.Ext(f.Name()) + for _, ext := range extensions { + if fileExt == ext { + confFiles = append(confFiles, filepath.Join(dir, f.Name())) + } + } + } + return confFiles, nil +} + +func LoadConf(dir, name string) (*NetworkConfig, error) { + files, err := ConfFiles(dir, []string{".conf", ".json"}) + switch { + case err != nil: + return nil, err + case len(files) == 0: + return nil, NoConfigsFoundError{Dir: dir} + } + sort.Strings(files) + + for _, confFile := range files { + conf, err := ConfFromFile(confFile) + if err != nil { + return nil, err + } + if conf.Network.Name == name { + return conf, nil + } + } + return nil, NotFoundError{dir, name} +} + +func LoadConfList(dir, name string) (*NetworkConfigList, error) { + files, err := ConfFiles(dir, []string{".conflist"}) + if err != nil { + return nil, err + } + sort.Strings(files) + + for _, confFile := range files { + conf, err := ConfListFromFile(confFile) + if err != nil { + return nil, err + } + if conf.Name == name { + return conf, nil + } + } + + // Try and load a network configuration file (instead of list) + // from the same name, then upconvert. + singleConf, err := LoadConf(dir, name) + if err != nil { + // A little extra logic so the error makes sense + if _, ok := err.(NoConfigsFoundError); len(files) != 0 && ok { + // Config lists found but no config files found + return nil, NotFoundError{dir, name} + } + + return nil, err + } + return ConfListFromConf(singleConf) +} + +func InjectConf(original *NetworkConfig, newValues map[string]interface{}) (*NetworkConfig, error) { + config := make(map[string]interface{}) + err := json.Unmarshal(original.Bytes, &config) + if err != nil { + return nil, fmt.Errorf("unmarshal existing network bytes: %w", err) + } + + for key, value := range newValues { + if key == "" { + return nil, fmt.Errorf("keys cannot be empty") + } + + if value == nil { + return nil, fmt.Errorf("key '%s' value must not be nil", key) + } + + config[key] = value + } + + newBytes, err := json.Marshal(config) + if err != nil { + return nil, err + } + + return ConfFromBytes(newBytes) +} + +// ConfListFromConf "upconverts" a network config in to a NetworkConfigList, +// with the single network as the only entry in the list. +func ConfListFromConf(original *NetworkConfig) (*NetworkConfigList, error) { + // Re-deserialize the config's json, then make a raw map configlist. + // This may seem a bit strange, but it's to make the Bytes fields + // actually make sense. Otherwise, the generated json is littered with + // golang default values. + + rawConfig := make(map[string]interface{}) + if err := json.Unmarshal(original.Bytes, &rawConfig); err != nil { + return nil, err + } + + rawConfigList := map[string]interface{}{ + "name": original.Network.Name, + "cniVersion": original.Network.CNIVersion, + "plugins": []interface{}{rawConfig}, + } + + b, err := json.Marshal(rawConfigList) + if err != nil { + return nil, err + } + return ConfListFromBytes(b) +} diff --git a/vendor/github.com/containernetworking/cni/pkg/invoke/args.go b/vendor/github.com/containernetworking/cni/pkg/invoke/args.go new file mode 100644 index 000000000..3cdb4bc8d --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/invoke/args.go @@ -0,0 +1,128 @@ +// Copyright 2015 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package invoke + +import ( + "fmt" + "os" + "strings" +) + +type CNIArgs interface { + // For use with os/exec; i.e., return nil to inherit the + // environment from this process + // For use in delegation; inherit the environment from this + // process and allow overrides + AsEnv() []string +} + +type inherited struct{} + +var inheritArgsFromEnv inherited + +func (*inherited) AsEnv() []string { + return nil +} + +func ArgsFromEnv() CNIArgs { + return &inheritArgsFromEnv +} + +type Args struct { + Command string + ContainerID string + NetNS string + PluginArgs [][2]string + PluginArgsStr string + IfName string + Path string +} + +// Args implements the CNIArgs interface +var _ CNIArgs = &Args{} + +func (args *Args) AsEnv() []string { + env := os.Environ() + pluginArgsStr := args.PluginArgsStr + if pluginArgsStr == "" { + pluginArgsStr = stringify(args.PluginArgs) + } + + // Duplicated values which come first will be overridden, so we must put the + // custom values in the end to avoid being overridden by the process environments. + env = append(env, + "CNI_COMMAND="+args.Command, + "CNI_CONTAINERID="+args.ContainerID, + "CNI_NETNS="+args.NetNS, + "CNI_ARGS="+pluginArgsStr, + "CNI_IFNAME="+args.IfName, + "CNI_PATH="+args.Path, + ) + return dedupEnv(env) +} + +// taken from rkt/networking/net_plugin.go +func stringify(pluginArgs [][2]string) string { + entries := make([]string, len(pluginArgs)) + + for i, kv := range pluginArgs { + entries[i] = strings.Join(kv[:], "=") + } + + return strings.Join(entries, ";") +} + +// DelegateArgs implements the CNIArgs interface +// used for delegation to inherit from environments +// and allow some overrides like CNI_COMMAND +var _ CNIArgs = &DelegateArgs{} + +type DelegateArgs struct { + Command string +} + +func (d *DelegateArgs) AsEnv() []string { + env := os.Environ() + + // The custom values should come in the end to override the existing + // process environment of the same key. + env = append(env, + "CNI_COMMAND="+d.Command, + ) + return dedupEnv(env) +} + +// dedupEnv returns a copy of env with any duplicates removed, in favor of later values. +// Items not of the normal environment "key=value" form are preserved unchanged. +func dedupEnv(env []string) []string { + out := make([]string, 0, len(env)) + envMap := map[string]string{} + + for _, kv := range env { + // find the first "=" in environment, if not, just keep it + eq := strings.Index(kv, "=") + if eq < 0 { + out = append(out, kv) + continue + } + envMap[kv[:eq]] = kv[eq+1:] + } + + for k, v := range envMap { + out = append(out, fmt.Sprintf("%s=%s", k, v)) + } + + return out +} diff --git a/vendor/github.com/containernetworking/cni/pkg/invoke/delegate.go b/vendor/github.com/containernetworking/cni/pkg/invoke/delegate.go new file mode 100644 index 000000000..8defe4dd3 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/invoke/delegate.go @@ -0,0 +1,80 @@ +// Copyright 2016 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package invoke + +import ( + "context" + "os" + "path/filepath" + + "github.com/containernetworking/cni/pkg/types" +) + +func delegateCommon(delegatePlugin string, exec Exec) (string, Exec, error) { + if exec == nil { + exec = defaultExec + } + + paths := filepath.SplitList(os.Getenv("CNI_PATH")) + pluginPath, err := exec.FindInPath(delegatePlugin, paths) + if err != nil { + return "", nil, err + } + + return pluginPath, exec, nil +} + +// DelegateAdd calls the given delegate plugin with the CNI ADD action and +// JSON configuration +func DelegateAdd(ctx context.Context, delegatePlugin string, netconf []byte, exec Exec) (types.Result, error) { + pluginPath, realExec, err := delegateCommon(delegatePlugin, exec) + if err != nil { + return nil, err + } + + // DelegateAdd will override the original "CNI_COMMAND" env from process with ADD + return ExecPluginWithResult(ctx, pluginPath, netconf, delegateArgs("ADD"), realExec) +} + +// DelegateCheck calls the given delegate plugin with the CNI CHECK action and +// JSON configuration +func DelegateCheck(ctx context.Context, delegatePlugin string, netconf []byte, exec Exec) error { + pluginPath, realExec, err := delegateCommon(delegatePlugin, exec) + if err != nil { + return err + } + + // DelegateCheck will override the original CNI_COMMAND env from process with CHECK + return ExecPluginWithoutResult(ctx, pluginPath, netconf, delegateArgs("CHECK"), realExec) +} + +// DelegateDel calls the given delegate plugin with the CNI DEL action and +// JSON configuration +func DelegateDel(ctx context.Context, delegatePlugin string, netconf []byte, exec Exec) error { + pluginPath, realExec, err := delegateCommon(delegatePlugin, exec) + if err != nil { + return err + } + + // DelegateDel will override the original CNI_COMMAND env from process with DEL + return ExecPluginWithoutResult(ctx, pluginPath, netconf, delegateArgs("DEL"), realExec) +} + +// return CNIArgs used by delegation +func delegateArgs(action string) *DelegateArgs { + return &DelegateArgs{ + Command: action, + } +} diff --git a/vendor/github.com/containernetworking/cni/pkg/invoke/exec.go b/vendor/github.com/containernetworking/cni/pkg/invoke/exec.go new file mode 100644 index 000000000..3ad07aa8f --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/invoke/exec.go @@ -0,0 +1,187 @@ +// Copyright 2015 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package invoke + +import ( + "context" + "encoding/json" + "fmt" + "os" + + "github.com/containernetworking/cni/pkg/types" + "github.com/containernetworking/cni/pkg/types/create" + "github.com/containernetworking/cni/pkg/version" +) + +// Exec is an interface encapsulates all operations that deal with finding +// and executing a CNI plugin. Tests may provide a fake implementation +// to avoid writing fake plugins to temporary directories during the test. +type Exec interface { + ExecPlugin(ctx context.Context, pluginPath string, stdinData []byte, environ []string) ([]byte, error) + FindInPath(plugin string, paths []string) (string, error) + Decode(jsonBytes []byte) (version.PluginInfo, error) +} + +// Plugin must return result in same version as specified in netconf; but +// for backwards compatibility reasons if the result version is empty use +// config version (rather than technically correct 0.1.0). +// https://github.com/containernetworking/cni/issues/895 +func fixupResultVersion(netconf, result []byte) (string, []byte, error) { + versionDecoder := &version.ConfigDecoder{} + confVersion, err := versionDecoder.Decode(netconf) + if err != nil { + return "", nil, err + } + + var rawResult map[string]interface{} + if err := json.Unmarshal(result, &rawResult); err != nil { + return "", nil, fmt.Errorf("failed to unmarshal raw result: %w", err) + } + + // plugin output of "null" is successfully unmarshalled, but results in a nil + // map which causes a panic when the confVersion is assigned below. + if rawResult == nil { + rawResult = make(map[string]interface{}) + } + + // Manually decode Result version; we need to know whether its cniVersion + // is empty, while built-in decoders (correctly) substitute 0.1.0 for an + // empty version per the CNI spec. + if resultVerRaw, ok := rawResult["cniVersion"]; ok { + resultVer, ok := resultVerRaw.(string) + if ok && resultVer != "" { + return resultVer, result, nil + } + } + + // If the cniVersion is not present or empty, assume the result is + // the same CNI spec version as the config + rawResult["cniVersion"] = confVersion + newBytes, err := json.Marshal(rawResult) + if err != nil { + return "", nil, fmt.Errorf("failed to remarshal fixed result: %w", err) + } + + return confVersion, newBytes, nil +} + +// For example, a testcase could pass an instance of the following fakeExec +// object to ExecPluginWithResult() to verify the incoming stdin and environment +// and provide a tailored response: +// +//import ( +// "encoding/json" +// "path" +// "strings" +//) +// +//type fakeExec struct { +// version.PluginDecoder +//} +// +//func (f *fakeExec) ExecPlugin(pluginPath string, stdinData []byte, environ []string) ([]byte, error) { +// net := &types.NetConf{} +// err := json.Unmarshal(stdinData, net) +// if err != nil { +// return nil, fmt.Errorf("failed to unmarshal configuration: %v", err) +// } +// pluginName := path.Base(pluginPath) +// if pluginName != net.Type { +// return nil, fmt.Errorf("plugin name %q did not match config type %q", pluginName, net.Type) +// } +// for _, e := range environ { +// // Check environment for forced failure request +// parts := strings.Split(e, "=") +// if len(parts) > 0 && parts[0] == "FAIL" { +// return nil, fmt.Errorf("failed to execute plugin %s", pluginName) +// } +// } +// return []byte("{\"CNIVersion\":\"0.4.0\"}"), nil +//} +// +//func (f *fakeExec) FindInPath(plugin string, paths []string) (string, error) { +// if len(paths) > 0 { +// return path.Join(paths[0], plugin), nil +// } +// return "", fmt.Errorf("failed to find plugin %s in paths %v", plugin, paths) +//} + +func ExecPluginWithResult(ctx context.Context, pluginPath string, netconf []byte, args CNIArgs, exec Exec) (types.Result, error) { + if exec == nil { + exec = defaultExec + } + + stdoutBytes, err := exec.ExecPlugin(ctx, pluginPath, netconf, args.AsEnv()) + if err != nil { + return nil, err + } + + resultVersion, fixedBytes, err := fixupResultVersion(netconf, stdoutBytes) + if err != nil { + return nil, err + } + + return create.Create(resultVersion, fixedBytes) +} + +func ExecPluginWithoutResult(ctx context.Context, pluginPath string, netconf []byte, args CNIArgs, exec Exec) error { + if exec == nil { + exec = defaultExec + } + _, err := exec.ExecPlugin(ctx, pluginPath, netconf, args.AsEnv()) + return err +} + +// GetVersionInfo returns the version information available about the plugin. +// For recent-enough plugins, it uses the information returned by the VERSION +// command. For older plugins which do not recognize that command, it reports +// version 0.1.0 +func GetVersionInfo(ctx context.Context, pluginPath string, exec Exec) (version.PluginInfo, error) { + if exec == nil { + exec = defaultExec + } + args := &Args{ + Command: "VERSION", + + // set fake values required by plugins built against an older version of skel + NetNS: "dummy", + IfName: "dummy", + Path: "dummy", + } + stdin := []byte(fmt.Sprintf(`{"cniVersion":%q}`, version.Current())) + stdoutBytes, err := exec.ExecPlugin(ctx, pluginPath, stdin, args.AsEnv()) + if err != nil { + if err.Error() == "unknown CNI_COMMAND: VERSION" { + return version.PluginSupports("0.1.0"), nil + } + return nil, err + } + + return exec.Decode(stdoutBytes) +} + +// DefaultExec is an object that implements the Exec interface which looks +// for and executes plugins from disk. +type DefaultExec struct { + *RawExec + version.PluginDecoder +} + +// DefaultExec implements the Exec interface +var _ Exec = &DefaultExec{} + +var defaultExec = &DefaultExec{ + RawExec: &RawExec{Stderr: os.Stderr}, +} diff --git a/vendor/github.com/containernetworking/cni/pkg/invoke/find.go b/vendor/github.com/containernetworking/cni/pkg/invoke/find.go new file mode 100644 index 000000000..e62029eb7 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/invoke/find.go @@ -0,0 +1,48 @@ +// Copyright 2015 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package invoke + +import ( + "fmt" + "os" + "path/filepath" + "strings" +) + +// FindInPath returns the full path of the plugin by searching in the provided path +func FindInPath(plugin string, paths []string) (string, error) { + if plugin == "" { + return "", fmt.Errorf("no plugin name provided") + } + + if strings.ContainsRune(plugin, os.PathSeparator) { + return "", fmt.Errorf("invalid plugin name: %s", plugin) + } + + if len(paths) == 0 { + return "", fmt.Errorf("no paths provided") + } + + for _, path := range paths { + for _, fe := range ExecutableFileExtensions { + fullpath := filepath.Join(path, plugin) + fe + if fi, err := os.Stat(fullpath); err == nil && fi.Mode().IsRegular() { + return fullpath, nil + } + } + } + + return "", fmt.Errorf("failed to find plugin %q in path %s", plugin, paths) +} diff --git a/vendor/github.com/containernetworking/cni/pkg/invoke/os_unix.go b/vendor/github.com/containernetworking/cni/pkg/invoke/os_unix.go new file mode 100644 index 000000000..9bcfb4553 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/invoke/os_unix.go @@ -0,0 +1,20 @@ +// Copyright 2016 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// +build darwin dragonfly freebsd linux netbsd openbsd solaris + +package invoke + +// Valid file extensions for plugin executables. +var ExecutableFileExtensions = []string{""} diff --git a/vendor/github.com/containernetworking/cni/pkg/invoke/os_windows.go b/vendor/github.com/containernetworking/cni/pkg/invoke/os_windows.go new file mode 100644 index 000000000..7665125b1 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/invoke/os_windows.go @@ -0,0 +1,18 @@ +// Copyright 2016 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package invoke + +// Valid file extensions for plugin executables. +var ExecutableFileExtensions = []string{".exe", ""} diff --git a/vendor/github.com/containernetworking/cni/pkg/invoke/raw_exec.go b/vendor/github.com/containernetworking/cni/pkg/invoke/raw_exec.go new file mode 100644 index 000000000..5ab5cc885 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/invoke/raw_exec.go @@ -0,0 +1,88 @@ +// Copyright 2016 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package invoke + +import ( + "bytes" + "context" + "encoding/json" + "fmt" + "io" + "os/exec" + "strings" + "time" + + "github.com/containernetworking/cni/pkg/types" +) + +type RawExec struct { + Stderr io.Writer +} + +func (e *RawExec) ExecPlugin(ctx context.Context, pluginPath string, stdinData []byte, environ []string) ([]byte, error) { + stdout := &bytes.Buffer{} + stderr := &bytes.Buffer{} + c := exec.CommandContext(ctx, pluginPath) + c.Env = environ + c.Stdin = bytes.NewBuffer(stdinData) + c.Stdout = stdout + c.Stderr = stderr + + // Retry the command on "text file busy" errors + for i := 0; i <= 5; i++ { + err := c.Run() + + // Command succeeded + if err == nil { + break + } + + // If the plugin is currently about to be written, then we wait a + // second and try it again + if strings.Contains(err.Error(), "text file busy") { + time.Sleep(time.Second) + continue + } + + // All other errors except than the busy text file + return nil, e.pluginErr(err, stdout.Bytes(), stderr.Bytes()) + } + + // Copy stderr to caller's buffer in case plugin printed to both + // stdout and stderr for some reason. Ignore failures as stderr is + // only informational. + if e.Stderr != nil && stderr.Len() > 0 { + _, _ = stderr.WriteTo(e.Stderr) + } + return stdout.Bytes(), nil +} + +func (e *RawExec) pluginErr(err error, stdout, stderr []byte) error { + emsg := types.Error{} + if len(stdout) == 0 { + if len(stderr) == 0 { + emsg.Msg = fmt.Sprintf("netplugin failed with no error message: %v", err) + } else { + emsg.Msg = fmt.Sprintf("netplugin failed: %q", string(stderr)) + } + } else if perr := json.Unmarshal(stdout, &emsg); perr != nil { + emsg.Msg = fmt.Sprintf("netplugin failed but error parsing its diagnostic message %q: %v", string(stdout), perr) + } + return &emsg +} + +func (e *RawExec) FindInPath(plugin string, paths []string) (string, error) { + return FindInPath(plugin, paths) +} diff --git a/vendor/github.com/containernetworking/cni/pkg/types/020/types.go b/vendor/github.com/containernetworking/cni/pkg/types/020/types.go new file mode 100644 index 000000000..99b151ff2 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/types/020/types.go @@ -0,0 +1,189 @@ +// Copyright 2016 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package types020 + +import ( + "encoding/json" + "fmt" + "io" + "net" + "os" + + "github.com/containernetworking/cni/pkg/types" + convert "github.com/containernetworking/cni/pkg/types/internal" +) + +const ImplementedSpecVersion string = "0.2.0" + +var supportedVersions = []string{"", "0.1.0", ImplementedSpecVersion} + +// Register converters for all versions less than the implemented spec version +func init() { + convert.RegisterConverter("0.1.0", []string{ImplementedSpecVersion}, convertFrom010) + convert.RegisterConverter(ImplementedSpecVersion, []string{"0.1.0"}, convertTo010) + + // Creator + convert.RegisterCreator(supportedVersions, NewResult) +} + +// Compatibility types for CNI version 0.1.0 and 0.2.0 + +// NewResult creates a new Result object from JSON data. The JSON data +// must be compatible with the CNI versions implemented by this type. +func NewResult(data []byte) (types.Result, error) { + result := &Result{} + if err := json.Unmarshal(data, result); err != nil { + return nil, err + } + for _, v := range supportedVersions { + if result.CNIVersion == v { + if result.CNIVersion == "" { + result.CNIVersion = "0.1.0" + } + return result, nil + } + } + return nil, fmt.Errorf("result type supports %v but unmarshalled CNIVersion is %q", + supportedVersions, result.CNIVersion) +} + +// GetResult converts the given Result object to the ImplementedSpecVersion +// and returns the concrete type or an error +func GetResult(r types.Result) (*Result, error) { + result020, err := convert.Convert(r, ImplementedSpecVersion) + if err != nil { + return nil, err + } + result, ok := result020.(*Result) + if !ok { + return nil, fmt.Errorf("failed to convert result") + } + return result, nil +} + +func convertFrom010(from types.Result, toVersion string) (types.Result, error) { + if toVersion != "0.2.0" { + panic("only converts to version 0.2.0") + } + fromResult := from.(*Result) + return &Result{ + CNIVersion: ImplementedSpecVersion, + IP4: fromResult.IP4.Copy(), + IP6: fromResult.IP6.Copy(), + DNS: *fromResult.DNS.Copy(), + }, nil +} + +func convertTo010(from types.Result, toVersion string) (types.Result, error) { + if toVersion != "0.1.0" { + panic("only converts to version 0.1.0") + } + fromResult := from.(*Result) + return &Result{ + CNIVersion: "0.1.0", + IP4: fromResult.IP4.Copy(), + IP6: fromResult.IP6.Copy(), + DNS: *fromResult.DNS.Copy(), + }, nil +} + +// Result is what gets returned from the plugin (via stdout) to the caller +type Result struct { + CNIVersion string `json:"cniVersion,omitempty"` + IP4 *IPConfig `json:"ip4,omitempty"` + IP6 *IPConfig `json:"ip6,omitempty"` + DNS types.DNS `json:"dns,omitempty"` +} + +func (r *Result) Version() string { + return r.CNIVersion +} + +func (r *Result) GetAsVersion(version string) (types.Result, error) { + // If the creator of the result did not set the CNIVersion, assume it + // should be the highest spec version implemented by this Result + if r.CNIVersion == "" { + r.CNIVersion = ImplementedSpecVersion + } + return convert.Convert(r, version) +} + +func (r *Result) Print() error { + return r.PrintTo(os.Stdout) +} + +func (r *Result) PrintTo(writer io.Writer) error { + data, err := json.MarshalIndent(r, "", " ") + if err != nil { + return err + } + _, err = writer.Write(data) + return err +} + +// IPConfig contains values necessary to configure an interface +type IPConfig struct { + IP net.IPNet + Gateway net.IP + Routes []types.Route +} + +func (i *IPConfig) Copy() *IPConfig { + if i == nil { + return nil + } + + var routes []types.Route + for _, fromRoute := range i.Routes { + routes = append(routes, *fromRoute.Copy()) + } + return &IPConfig{ + IP: i.IP, + Gateway: i.Gateway, + Routes: routes, + } +} + +// net.IPNet is not JSON (un)marshallable so this duality is needed +// for our custom IPNet type + +// JSON (un)marshallable types +type ipConfig struct { + IP types.IPNet `json:"ip"` + Gateway net.IP `json:"gateway,omitempty"` + Routes []types.Route `json:"routes,omitempty"` +} + +func (c *IPConfig) MarshalJSON() ([]byte, error) { + ipc := ipConfig{ + IP: types.IPNet(c.IP), + Gateway: c.Gateway, + Routes: c.Routes, + } + + return json.Marshal(ipc) +} + +func (c *IPConfig) UnmarshalJSON(data []byte) error { + ipc := ipConfig{} + if err := json.Unmarshal(data, &ipc); err != nil { + return err + } + + c.IP = net.IPNet(ipc.IP) + c.Gateway = ipc.Gateway + c.Routes = ipc.Routes + return nil +} diff --git a/vendor/github.com/containernetworking/cni/pkg/types/040/types.go b/vendor/github.com/containernetworking/cni/pkg/types/040/types.go new file mode 100644 index 000000000..3633b0eaa --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/types/040/types.go @@ -0,0 +1,306 @@ +// Copyright 2016 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package types040 + +import ( + "encoding/json" + "fmt" + "io" + "net" + "os" + + "github.com/containernetworking/cni/pkg/types" + types020 "github.com/containernetworking/cni/pkg/types/020" + convert "github.com/containernetworking/cni/pkg/types/internal" +) + +const ImplementedSpecVersion string = "0.4.0" + +var supportedVersions = []string{"0.3.0", "0.3.1", ImplementedSpecVersion} + +// Register converters for all versions less than the implemented spec version +func init() { + // Up-converters + convert.RegisterConverter("0.1.0", supportedVersions, convertFrom02x) + convert.RegisterConverter("0.2.0", supportedVersions, convertFrom02x) + convert.RegisterConverter("0.3.0", supportedVersions, convertInternal) + convert.RegisterConverter("0.3.1", supportedVersions, convertInternal) + + // Down-converters + convert.RegisterConverter("0.4.0", []string{"0.3.0", "0.3.1"}, convertInternal) + convert.RegisterConverter("0.4.0", []string{"0.1.0", "0.2.0"}, convertTo02x) + convert.RegisterConverter("0.3.1", []string{"0.1.0", "0.2.0"}, convertTo02x) + convert.RegisterConverter("0.3.0", []string{"0.1.0", "0.2.0"}, convertTo02x) + + // Creator + convert.RegisterCreator(supportedVersions, NewResult) +} + +func NewResult(data []byte) (types.Result, error) { + result := &Result{} + if err := json.Unmarshal(data, result); err != nil { + return nil, err + } + for _, v := range supportedVersions { + if result.CNIVersion == v { + return result, nil + } + } + return nil, fmt.Errorf("result type supports %v but unmarshalled CNIVersion is %q", + supportedVersions, result.CNIVersion) +} + +func GetResult(r types.Result) (*Result, error) { + resultCurrent, err := r.GetAsVersion(ImplementedSpecVersion) + if err != nil { + return nil, err + } + result, ok := resultCurrent.(*Result) + if !ok { + return nil, fmt.Errorf("failed to convert result") + } + return result, nil +} + +func NewResultFromResult(result types.Result) (*Result, error) { + newResult, err := convert.Convert(result, ImplementedSpecVersion) + if err != nil { + return nil, err + } + return newResult.(*Result), nil +} + +// Result is what gets returned from the plugin (via stdout) to the caller +type Result struct { + CNIVersion string `json:"cniVersion,omitempty"` + Interfaces []*Interface `json:"interfaces,omitempty"` + IPs []*IPConfig `json:"ips,omitempty"` + Routes []*types.Route `json:"routes,omitempty"` + DNS types.DNS `json:"dns,omitempty"` +} + +func convert020IPConfig(from *types020.IPConfig, ipVersion string) *IPConfig { + return &IPConfig{ + Version: ipVersion, + Address: from.IP, + Gateway: from.Gateway, + } +} + +func convertFrom02x(from types.Result, toVersion string) (types.Result, error) { + fromResult := from.(*types020.Result) + toResult := &Result{ + CNIVersion: toVersion, + DNS: *fromResult.DNS.Copy(), + Routes: []*types.Route{}, + } + if fromResult.IP4 != nil { + toResult.IPs = append(toResult.IPs, convert020IPConfig(fromResult.IP4, "4")) + for _, fromRoute := range fromResult.IP4.Routes { + toResult.Routes = append(toResult.Routes, fromRoute.Copy()) + } + } + + if fromResult.IP6 != nil { + toResult.IPs = append(toResult.IPs, convert020IPConfig(fromResult.IP6, "6")) + for _, fromRoute := range fromResult.IP6.Routes { + toResult.Routes = append(toResult.Routes, fromRoute.Copy()) + } + } + + return toResult, nil +} + +func convertInternal(from types.Result, toVersion string) (types.Result, error) { + fromResult := from.(*Result) + toResult := &Result{ + CNIVersion: toVersion, + DNS: *fromResult.DNS.Copy(), + Routes: []*types.Route{}, + } + for _, fromIntf := range fromResult.Interfaces { + toResult.Interfaces = append(toResult.Interfaces, fromIntf.Copy()) + } + for _, fromIPC := range fromResult.IPs { + toResult.IPs = append(toResult.IPs, fromIPC.Copy()) + } + for _, fromRoute := range fromResult.Routes { + toResult.Routes = append(toResult.Routes, fromRoute.Copy()) + } + return toResult, nil +} + +func convertTo02x(from types.Result, toVersion string) (types.Result, error) { + fromResult := from.(*Result) + toResult := &types020.Result{ + CNIVersion: toVersion, + DNS: *fromResult.DNS.Copy(), + } + + for _, fromIP := range fromResult.IPs { + // Only convert the first IP address of each version as 0.2.0 + // and earlier cannot handle multiple IP addresses + if fromIP.Version == "4" && toResult.IP4 == nil { + toResult.IP4 = &types020.IPConfig{ + IP: fromIP.Address, + Gateway: fromIP.Gateway, + } + } else if fromIP.Version == "6" && toResult.IP6 == nil { + toResult.IP6 = &types020.IPConfig{ + IP: fromIP.Address, + Gateway: fromIP.Gateway, + } + } + if toResult.IP4 != nil && toResult.IP6 != nil { + break + } + } + + for _, fromRoute := range fromResult.Routes { + is4 := fromRoute.Dst.IP.To4() != nil + if is4 && toResult.IP4 != nil { + toResult.IP4.Routes = append(toResult.IP4.Routes, types.Route{ + Dst: fromRoute.Dst, + GW: fromRoute.GW, + }) + } else if !is4 && toResult.IP6 != nil { + toResult.IP6.Routes = append(toResult.IP6.Routes, types.Route{ + Dst: fromRoute.Dst, + GW: fromRoute.GW, + }) + } + } + + // 0.2.0 and earlier require at least one IP address in the Result + if toResult.IP4 == nil && toResult.IP6 == nil { + return nil, fmt.Errorf("cannot convert: no valid IP addresses") + } + + return toResult, nil +} + +func (r *Result) Version() string { + return r.CNIVersion +} + +func (r *Result) GetAsVersion(version string) (types.Result, error) { + // If the creator of the result did not set the CNIVersion, assume it + // should be the highest spec version implemented by this Result + if r.CNIVersion == "" { + r.CNIVersion = ImplementedSpecVersion + } + return convert.Convert(r, version) +} + +func (r *Result) Print() error { + return r.PrintTo(os.Stdout) +} + +func (r *Result) PrintTo(writer io.Writer) error { + data, err := json.MarshalIndent(r, "", " ") + if err != nil { + return err + } + _, err = writer.Write(data) + return err +} + +// Interface contains values about the created interfaces +type Interface struct { + Name string `json:"name"` + Mac string `json:"mac,omitempty"` + Sandbox string `json:"sandbox,omitempty"` +} + +func (i *Interface) String() string { + return fmt.Sprintf("%+v", *i) +} + +func (i *Interface) Copy() *Interface { + if i == nil { + return nil + } + newIntf := *i + return &newIntf +} + +// Int returns a pointer to the int value passed in. Used to +// set the IPConfig.Interface field. +func Int(v int) *int { + return &v +} + +// IPConfig contains values necessary to configure an IP address on an interface +type IPConfig struct { + // IP version, either "4" or "6" + Version string + // Index into Result structs Interfaces list + Interface *int + Address net.IPNet + Gateway net.IP +} + +func (i *IPConfig) String() string { + return fmt.Sprintf("%+v", *i) +} + +func (i *IPConfig) Copy() *IPConfig { + if i == nil { + return nil + } + + ipc := &IPConfig{ + Version: i.Version, + Address: i.Address, + Gateway: i.Gateway, + } + if i.Interface != nil { + intf := *i.Interface + ipc.Interface = &intf + } + return ipc +} + +// JSON (un)marshallable types +type ipConfig struct { + Version string `json:"version"` + Interface *int `json:"interface,omitempty"` + Address types.IPNet `json:"address"` + Gateway net.IP `json:"gateway,omitempty"` +} + +func (c *IPConfig) MarshalJSON() ([]byte, error) { + ipc := ipConfig{ + Version: c.Version, + Interface: c.Interface, + Address: types.IPNet(c.Address), + Gateway: c.Gateway, + } + + return json.Marshal(ipc) +} + +func (c *IPConfig) UnmarshalJSON(data []byte) error { + ipc := ipConfig{} + if err := json.Unmarshal(data, &ipc); err != nil { + return err + } + + c.Version = ipc.Version + c.Interface = ipc.Interface + c.Address = net.IPNet(ipc.Address) + c.Gateway = ipc.Gateway + return nil +} diff --git a/vendor/github.com/containernetworking/cni/pkg/types/100/types.go b/vendor/github.com/containernetworking/cni/pkg/types/100/types.go new file mode 100644 index 000000000..0e1e8b857 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/types/100/types.go @@ -0,0 +1,307 @@ +// Copyright 2016 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package types100 + +import ( + "encoding/json" + "fmt" + "io" + "net" + "os" + + "github.com/containernetworking/cni/pkg/types" + types040 "github.com/containernetworking/cni/pkg/types/040" + convert "github.com/containernetworking/cni/pkg/types/internal" +) + +const ImplementedSpecVersion string = "1.0.0" + +var supportedVersions = []string{ImplementedSpecVersion} + +// Register converters for all versions less than the implemented spec version +func init() { + // Up-converters + convert.RegisterConverter("0.1.0", supportedVersions, convertFrom02x) + convert.RegisterConverter("0.2.0", supportedVersions, convertFrom02x) + convert.RegisterConverter("0.3.0", supportedVersions, convertFrom04x) + convert.RegisterConverter("0.3.1", supportedVersions, convertFrom04x) + convert.RegisterConverter("0.4.0", supportedVersions, convertFrom04x) + + // Down-converters + convert.RegisterConverter("1.0.0", []string{"0.3.0", "0.3.1", "0.4.0"}, convertTo04x) + convert.RegisterConverter("1.0.0", []string{"0.1.0", "0.2.0"}, convertTo02x) + + // Creator + convert.RegisterCreator(supportedVersions, NewResult) +} + +func NewResult(data []byte) (types.Result, error) { + result := &Result{} + if err := json.Unmarshal(data, result); err != nil { + return nil, err + } + for _, v := range supportedVersions { + if result.CNIVersion == v { + return result, nil + } + } + return nil, fmt.Errorf("result type supports %v but unmarshalled CNIVersion is %q", + supportedVersions, result.CNIVersion) +} + +func GetResult(r types.Result) (*Result, error) { + resultCurrent, err := r.GetAsVersion(ImplementedSpecVersion) + if err != nil { + return nil, err + } + result, ok := resultCurrent.(*Result) + if !ok { + return nil, fmt.Errorf("failed to convert result") + } + return result, nil +} + +func NewResultFromResult(result types.Result) (*Result, error) { + newResult, err := convert.Convert(result, ImplementedSpecVersion) + if err != nil { + return nil, err + } + return newResult.(*Result), nil +} + +// Result is what gets returned from the plugin (via stdout) to the caller +type Result struct { + CNIVersion string `json:"cniVersion,omitempty"` + Interfaces []*Interface `json:"interfaces,omitempty"` + IPs []*IPConfig `json:"ips,omitempty"` + Routes []*types.Route `json:"routes,omitempty"` + DNS types.DNS `json:"dns,omitempty"` +} + +func convertFrom02x(from types.Result, toVersion string) (types.Result, error) { + result040, err := convert.Convert(from, "0.4.0") + if err != nil { + return nil, err + } + result100, err := convertFrom04x(result040, ImplementedSpecVersion) + if err != nil { + return nil, err + } + return result100, nil +} + +func convertIPConfigFrom040(from *types040.IPConfig) *IPConfig { + to := &IPConfig{ + Address: from.Address, + Gateway: from.Gateway, + } + if from.Interface != nil { + intf := *from.Interface + to.Interface = &intf + } + return to +} + +func convertInterfaceFrom040(from *types040.Interface) *Interface { + return &Interface{ + Name: from.Name, + Mac: from.Mac, + Sandbox: from.Sandbox, + } +} + +func convertFrom04x(from types.Result, toVersion string) (types.Result, error) { + fromResult := from.(*types040.Result) + toResult := &Result{ + CNIVersion: toVersion, + DNS: *fromResult.DNS.Copy(), + Routes: []*types.Route{}, + } + for _, fromIntf := range fromResult.Interfaces { + toResult.Interfaces = append(toResult.Interfaces, convertInterfaceFrom040(fromIntf)) + } + for _, fromIPC := range fromResult.IPs { + toResult.IPs = append(toResult.IPs, convertIPConfigFrom040(fromIPC)) + } + for _, fromRoute := range fromResult.Routes { + toResult.Routes = append(toResult.Routes, fromRoute.Copy()) + } + return toResult, nil +} + +func convertIPConfigTo040(from *IPConfig) *types040.IPConfig { + version := "6" + if from.Address.IP.To4() != nil { + version = "4" + } + to := &types040.IPConfig{ + Version: version, + Address: from.Address, + Gateway: from.Gateway, + } + if from.Interface != nil { + intf := *from.Interface + to.Interface = &intf + } + return to +} + +func convertInterfaceTo040(from *Interface) *types040.Interface { + return &types040.Interface{ + Name: from.Name, + Mac: from.Mac, + Sandbox: from.Sandbox, + } +} + +func convertTo04x(from types.Result, toVersion string) (types.Result, error) { + fromResult := from.(*Result) + toResult := &types040.Result{ + CNIVersion: toVersion, + DNS: *fromResult.DNS.Copy(), + Routes: []*types.Route{}, + } + for _, fromIntf := range fromResult.Interfaces { + toResult.Interfaces = append(toResult.Interfaces, convertInterfaceTo040(fromIntf)) + } + for _, fromIPC := range fromResult.IPs { + toResult.IPs = append(toResult.IPs, convertIPConfigTo040(fromIPC)) + } + for _, fromRoute := range fromResult.Routes { + toResult.Routes = append(toResult.Routes, fromRoute.Copy()) + } + return toResult, nil +} + +func convertTo02x(from types.Result, toVersion string) (types.Result, error) { + // First convert to 0.4.0 + result040, err := convertTo04x(from, "0.4.0") + if err != nil { + return nil, err + } + result02x, err := convert.Convert(result040, toVersion) + if err != nil { + return nil, err + } + return result02x, nil +} + +func (r *Result) Version() string { + return r.CNIVersion +} + +func (r *Result) GetAsVersion(version string) (types.Result, error) { + // If the creator of the result did not set the CNIVersion, assume it + // should be the highest spec version implemented by this Result + if r.CNIVersion == "" { + r.CNIVersion = ImplementedSpecVersion + } + return convert.Convert(r, version) +} + +func (r *Result) Print() error { + return r.PrintTo(os.Stdout) +} + +func (r *Result) PrintTo(writer io.Writer) error { + data, err := json.MarshalIndent(r, "", " ") + if err != nil { + return err + } + _, err = writer.Write(data) + return err +} + +// Interface contains values about the created interfaces +type Interface struct { + Name string `json:"name"` + Mac string `json:"mac,omitempty"` + Sandbox string `json:"sandbox,omitempty"` +} + +func (i *Interface) String() string { + return fmt.Sprintf("%+v", *i) +} + +func (i *Interface) Copy() *Interface { + if i == nil { + return nil + } + newIntf := *i + return &newIntf +} + +// Int returns a pointer to the int value passed in. Used to +// set the IPConfig.Interface field. +func Int(v int) *int { + return &v +} + +// IPConfig contains values necessary to configure an IP address on an interface +type IPConfig struct { + // Index into Result structs Interfaces list + Interface *int + Address net.IPNet + Gateway net.IP +} + +func (i *IPConfig) String() string { + return fmt.Sprintf("%+v", *i) +} + +func (i *IPConfig) Copy() *IPConfig { + if i == nil { + return nil + } + + ipc := &IPConfig{ + Address: i.Address, + Gateway: i.Gateway, + } + if i.Interface != nil { + intf := *i.Interface + ipc.Interface = &intf + } + return ipc +} + +// JSON (un)marshallable types +type ipConfig struct { + Interface *int `json:"interface,omitempty"` + Address types.IPNet `json:"address"` + Gateway net.IP `json:"gateway,omitempty"` +} + +func (c *IPConfig) MarshalJSON() ([]byte, error) { + ipc := ipConfig{ + Interface: c.Interface, + Address: types.IPNet(c.Address), + Gateway: c.Gateway, + } + + return json.Marshal(ipc) +} + +func (c *IPConfig) UnmarshalJSON(data []byte) error { + ipc := ipConfig{} + if err := json.Unmarshal(data, &ipc); err != nil { + return err + } + + c.Interface = ipc.Interface + c.Address = net.IPNet(ipc.Address) + c.Gateway = ipc.Gateway + return nil +} diff --git a/vendor/github.com/containernetworking/cni/pkg/types/args.go b/vendor/github.com/containernetworking/cni/pkg/types/args.go new file mode 100644 index 000000000..7516f03ef --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/types/args.go @@ -0,0 +1,122 @@ +// Copyright 2015 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package types + +import ( + "encoding" + "fmt" + "reflect" + "strings" +) + +// UnmarshallableBool typedef for builtin bool +// because builtin type's methods can't be declared +type UnmarshallableBool bool + +// UnmarshalText implements the encoding.TextUnmarshaler interface. +// Returns boolean true if the string is "1" or "[Tt]rue" +// Returns boolean false if the string is "0" or "[Ff]alse" +func (b *UnmarshallableBool) UnmarshalText(data []byte) error { + s := strings.ToLower(string(data)) + switch s { + case "1", "true": + *b = true + case "0", "false": + *b = false + default: + return fmt.Errorf("boolean unmarshal error: invalid input %s", s) + } + return nil +} + +// UnmarshallableString typedef for builtin string +type UnmarshallableString string + +// UnmarshalText implements the encoding.TextUnmarshaler interface. +// Returns the string +func (s *UnmarshallableString) UnmarshalText(data []byte) error { + *s = UnmarshallableString(data) + return nil +} + +// CommonArgs contains the IgnoreUnknown argument +// and must be embedded by all Arg structs +type CommonArgs struct { + IgnoreUnknown UnmarshallableBool `json:"ignoreunknown,omitempty"` +} + +// GetKeyField is a helper function to receive Values +// Values that represent a pointer to a struct +func GetKeyField(keyString string, v reflect.Value) reflect.Value { + return v.Elem().FieldByName(keyString) +} + +// UnmarshalableArgsError is used to indicate error unmarshalling args +// from the args-string in the form "K=V;K2=V2;..." +type UnmarshalableArgsError struct { + error +} + +// LoadArgs parses args from a string in the form "K=V;K2=V2;..." +func LoadArgs(args string, container interface{}) error { + if args == "" { + return nil + } + + containerValue := reflect.ValueOf(container) + + pairs := strings.Split(args, ";") + unknownArgs := []string{} + for _, pair := range pairs { + kv := strings.Split(pair, "=") + if len(kv) != 2 { + return fmt.Errorf("ARGS: invalid pair %q", pair) + } + keyString := kv[0] + valueString := kv[1] + keyField := GetKeyField(keyString, containerValue) + if !keyField.IsValid() { + unknownArgs = append(unknownArgs, pair) + continue + } + + var keyFieldInterface interface{} + switch { + case keyField.Kind() == reflect.Ptr: + keyField.Set(reflect.New(keyField.Type().Elem())) + keyFieldInterface = keyField.Interface() + case keyField.CanAddr() && keyField.Addr().CanInterface(): + keyFieldInterface = keyField.Addr().Interface() + default: + return UnmarshalableArgsError{fmt.Errorf("field '%s' has no valid interface", keyString)} + } + u, ok := keyFieldInterface.(encoding.TextUnmarshaler) + if !ok { + return UnmarshalableArgsError{fmt.Errorf( + "ARGS: cannot unmarshal into field '%s' - type '%s' does not implement encoding.TextUnmarshaler", + keyString, reflect.TypeOf(keyFieldInterface))} + } + err := u.UnmarshalText([]byte(valueString)) + if err != nil { + return fmt.Errorf("ARGS: error parsing value of pair %q: %w", pair, err) + } + } + + isIgnoreUnknown := GetKeyField("IgnoreUnknown", containerValue).Bool() + if len(unknownArgs) > 0 && !isIgnoreUnknown { + return fmt.Errorf("ARGS: unknown args %q", unknownArgs) + } + return nil +} diff --git a/vendor/github.com/containernetworking/cni/pkg/types/create/create.go b/vendor/github.com/containernetworking/cni/pkg/types/create/create.go new file mode 100644 index 000000000..ed28b33e8 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/types/create/create.go @@ -0,0 +1,56 @@ +// Copyright 2016 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package create + +import ( + "encoding/json" + "fmt" + + "github.com/containernetworking/cni/pkg/types" + convert "github.com/containernetworking/cni/pkg/types/internal" +) + +// DecodeVersion returns the CNI version from CNI configuration or result JSON, +// or an error if the operation could not be performed. +func DecodeVersion(jsonBytes []byte) (string, error) { + var conf struct { + CNIVersion string `json:"cniVersion"` + } + err := json.Unmarshal(jsonBytes, &conf) + if err != nil { + return "", fmt.Errorf("decoding version from network config: %w", err) + } + if conf.CNIVersion == "" { + return "0.1.0", nil + } + return conf.CNIVersion, nil +} + +// Create creates a CNI Result using the given JSON with the expected +// version, or an error if the creation could not be performed +func Create(version string, bytes []byte) (types.Result, error) { + return convert.Create(version, bytes) +} + +// CreateFromBytes creates a CNI Result from the given JSON, automatically +// detecting the CNI spec version of the result. An error is returned if the +// operation could not be performed. +func CreateFromBytes(bytes []byte) (types.Result, error) { + version, err := DecodeVersion(bytes) + if err != nil { + return nil, err + } + return convert.Create(version, bytes) +} diff --git a/vendor/github.com/containernetworking/cni/pkg/types/internal/convert.go b/vendor/github.com/containernetworking/cni/pkg/types/internal/convert.go new file mode 100644 index 000000000..bdbe4b0a5 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/types/internal/convert.go @@ -0,0 +1,92 @@ +// Copyright 2016 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package convert + +import ( + "fmt" + + "github.com/containernetworking/cni/pkg/types" +) + +// ConvertFn should convert from the given arbitrary Result type into a +// Result implementing CNI specification version passed in toVersion. +// The function is guaranteed to be passed a Result type matching the +// fromVersion it was registered with, and is guaranteed to be +// passed a toVersion matching one of the toVersions it was registered with. +type ConvertFn func(from types.Result, toVersion string) (types.Result, error) + +type converter struct { + // fromVersion is the CNI Result spec version that convertFn accepts + fromVersion string + // toVersions is a list of versions that convertFn can convert to + toVersions []string + convertFn ConvertFn +} + +var converters []*converter + +func findConverter(fromVersion, toVersion string) *converter { + for _, c := range converters { + if c.fromVersion == fromVersion { + for _, v := range c.toVersions { + if v == toVersion { + return c + } + } + } + } + return nil +} + +// Convert converts a CNI Result to the requested CNI specification version, +// or returns an error if the conversion could not be performed or failed +func Convert(from types.Result, toVersion string) (types.Result, error) { + if toVersion == "" { + toVersion = "0.1.0" + } + + fromVersion := from.Version() + + // Shortcut for same version + if fromVersion == toVersion { + return from, nil + } + + // Otherwise find the right converter + c := findConverter(fromVersion, toVersion) + if c == nil { + return nil, fmt.Errorf("no converter for CNI result version %s to %s", + fromVersion, toVersion) + } + return c.convertFn(from, toVersion) +} + +// RegisterConverter registers a CNI Result converter. SHOULD NOT BE CALLED +// EXCEPT FROM CNI ITSELF. +func RegisterConverter(fromVersion string, toVersions []string, convertFn ConvertFn) { + // Make sure there is no converter already registered for these + // from and to versions + for _, v := range toVersions { + if findConverter(fromVersion, v) != nil { + panic(fmt.Sprintf("converter already registered for %s to %s", + fromVersion, v)) + } + } + converters = append(converters, &converter{ + fromVersion: fromVersion, + toVersions: toVersions, + convertFn: convertFn, + }) +} diff --git a/vendor/github.com/containernetworking/cni/pkg/types/internal/create.go b/vendor/github.com/containernetworking/cni/pkg/types/internal/create.go new file mode 100644 index 000000000..963630912 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/types/internal/create.go @@ -0,0 +1,66 @@ +// Copyright 2016 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package convert + +import ( + "fmt" + + "github.com/containernetworking/cni/pkg/types" +) + +type ResultFactoryFunc func([]byte) (types.Result, error) + +type creator struct { + // CNI Result spec versions that createFn can create a Result for + versions []string + createFn ResultFactoryFunc +} + +var creators []*creator + +func findCreator(version string) *creator { + for _, c := range creators { + for _, v := range c.versions { + if v == version { + return c + } + } + } + return nil +} + +// Create creates a CNI Result using the given JSON, or an error if the creation +// could not be performed +func Create(version string, bytes []byte) (types.Result, error) { + if c := findCreator(version); c != nil { + return c.createFn(bytes) + } + return nil, fmt.Errorf("unsupported CNI result version %q", version) +} + +// RegisterCreator registers a CNI Result creator. SHOULD NOT BE CALLED +// EXCEPT FROM CNI ITSELF. +func RegisterCreator(versions []string, createFn ResultFactoryFunc) { + // Make sure there is no creator already registered for these versions + for _, v := range versions { + if findCreator(v) != nil { + panic(fmt.Sprintf("creator already registered for %s", v)) + } + } + creators = append(creators, &creator{ + versions: versions, + createFn: createFn, + }) +} diff --git a/vendor/github.com/containernetworking/cni/pkg/types/types.go b/vendor/github.com/containernetworking/cni/pkg/types/types.go new file mode 100644 index 000000000..fba17dfc0 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/types/types.go @@ -0,0 +1,234 @@ +// Copyright 2015 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package types + +import ( + "encoding/json" + "fmt" + "io" + "net" + "os" +) + +// like net.IPNet but adds JSON marshalling and unmarshalling +type IPNet net.IPNet + +// ParseCIDR takes a string like "10.2.3.1/24" and +// return IPNet with "10.2.3.1" and /24 mask +func ParseCIDR(s string) (*net.IPNet, error) { + ip, ipn, err := net.ParseCIDR(s) + if err != nil { + return nil, err + } + + ipn.IP = ip + return ipn, nil +} + +func (n IPNet) MarshalJSON() ([]byte, error) { + return json.Marshal((*net.IPNet)(&n).String()) +} + +func (n *IPNet) UnmarshalJSON(data []byte) error { + var s string + if err := json.Unmarshal(data, &s); err != nil { + return err + } + + tmp, err := ParseCIDR(s) + if err != nil { + return err + } + + *n = IPNet(*tmp) + return nil +} + +// NetConf describes a network. +type NetConf struct { + CNIVersion string `json:"cniVersion,omitempty"` + + Name string `json:"name,omitempty"` + Type string `json:"type,omitempty"` + Capabilities map[string]bool `json:"capabilities,omitempty"` + IPAM IPAM `json:"ipam,omitempty"` + DNS DNS `json:"dns"` + + RawPrevResult map[string]interface{} `json:"prevResult,omitempty"` + PrevResult Result `json:"-"` +} + +type IPAM struct { + Type string `json:"type,omitempty"` +} + +// NetConfList describes an ordered list of networks. +type NetConfList struct { + CNIVersion string `json:"cniVersion,omitempty"` + + Name string `json:"name,omitempty"` + DisableCheck bool `json:"disableCheck,omitempty"` + Plugins []*NetConf `json:"plugins,omitempty"` +} + +// Result is an interface that provides the result of plugin execution +type Result interface { + // The highest CNI specification result version the result supports + // without having to convert + Version() string + + // Returns the result converted into the requested CNI specification + // result version, or an error if conversion failed + GetAsVersion(version string) (Result, error) + + // Prints the result in JSON format to stdout + Print() error + + // Prints the result in JSON format to provided writer + PrintTo(writer io.Writer) error +} + +func PrintResult(result Result, version string) error { + newResult, err := result.GetAsVersion(version) + if err != nil { + return err + } + return newResult.Print() +} + +// DNS contains values interesting for DNS resolvers +type DNS struct { + Nameservers []string `json:"nameservers,omitempty"` + Domain string `json:"domain,omitempty"` + Search []string `json:"search,omitempty"` + Options []string `json:"options,omitempty"` +} + +func (d *DNS) Copy() *DNS { + if d == nil { + return nil + } + + to := &DNS{Domain: d.Domain} + for _, ns := range d.Nameservers { + to.Nameservers = append(to.Nameservers, ns) + } + for _, s := range d.Search { + to.Search = append(to.Search, s) + } + for _, o := range d.Options { + to.Options = append(to.Options, o) + } + return to +} + +type Route struct { + Dst net.IPNet + GW net.IP +} + +func (r *Route) String() string { + return fmt.Sprintf("%+v", *r) +} + +func (r *Route) Copy() *Route { + if r == nil { + return nil + } + + return &Route{ + Dst: r.Dst, + GW: r.GW, + } +} + +// Well known error codes +// see https://github.com/containernetworking/cni/blob/master/SPEC.md#well-known-error-codes +const ( + ErrUnknown uint = iota // 0 + ErrIncompatibleCNIVersion // 1 + ErrUnsupportedField // 2 + ErrUnknownContainer // 3 + ErrInvalidEnvironmentVariables // 4 + ErrIOFailure // 5 + ErrDecodingFailure // 6 + ErrInvalidNetworkConfig // 7 + ErrTryAgainLater uint = 11 + ErrInternal uint = 999 +) + +type Error struct { + Code uint `json:"code"` + Msg string `json:"msg"` + Details string `json:"details,omitempty"` +} + +func NewError(code uint, msg, details string) *Error { + return &Error{ + Code: code, + Msg: msg, + Details: details, + } +} + +func (e *Error) Error() string { + details := "" + if e.Details != "" { + details = fmt.Sprintf("; %v", e.Details) + } + return fmt.Sprintf("%v%v", e.Msg, details) +} + +func (e *Error) Print() error { + return prettyPrint(e) +} + +// net.IPNet is not JSON (un)marshallable so this duality is needed +// for our custom IPNet type + +// JSON (un)marshallable types +type route struct { + Dst IPNet `json:"dst"` + GW net.IP `json:"gw,omitempty"` +} + +func (r *Route) UnmarshalJSON(data []byte) error { + rt := route{} + if err := json.Unmarshal(data, &rt); err != nil { + return err + } + + r.Dst = net.IPNet(rt.Dst) + r.GW = rt.GW + return nil +} + +func (r Route) MarshalJSON() ([]byte, error) { + rt := route{ + Dst: IPNet(r.Dst), + GW: r.GW, + } + + return json.Marshal(rt) +} + +func prettyPrint(obj interface{}) error { + data, err := json.MarshalIndent(obj, "", " ") + if err != nil { + return err + } + _, err = os.Stdout.Write(data) + return err +} diff --git a/vendor/github.com/containernetworking/cni/pkg/utils/utils.go b/vendor/github.com/containernetworking/cni/pkg/utils/utils.go new file mode 100644 index 000000000..b8ec38874 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/utils/utils.go @@ -0,0 +1,84 @@ +// Copyright 2019 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package utils + +import ( + "bytes" + "fmt" + "regexp" + "unicode" + + "github.com/containernetworking/cni/pkg/types" +) + +const ( + // cniValidNameChars is the regexp used to validate valid characters in + // containerID and networkName + cniValidNameChars = `[a-zA-Z0-9][a-zA-Z0-9_.\-]` + + // maxInterfaceNameLength is the length max of a valid interface name + maxInterfaceNameLength = 15 +) + +var cniReg = regexp.MustCompile(`^` + cniValidNameChars + `*$`) + +// ValidateContainerID will validate that the supplied containerID is not empty does not contain invalid characters +func ValidateContainerID(containerID string) *types.Error { + + if containerID == "" { + return types.NewError(types.ErrUnknownContainer, "missing containerID", "") + } + if !cniReg.MatchString(containerID) { + return types.NewError(types.ErrInvalidEnvironmentVariables, "invalid characters in containerID", containerID) + } + return nil +} + +// ValidateNetworkName will validate that the supplied networkName does not contain invalid characters +func ValidateNetworkName(networkName string) *types.Error { + + if networkName == "" { + return types.NewError(types.ErrInvalidNetworkConfig, "missing network name:", "") + } + if !cniReg.MatchString(networkName) { + return types.NewError(types.ErrInvalidNetworkConfig, "invalid characters found in network name", networkName) + } + return nil +} + +// ValidateInterfaceName will validate the interface name based on the three rules below +// 1. The name must not be empty +// 2. The name must be less than 16 characters +// 3. The name must not be "." or ".." +// 3. The name must not contain / or : or any whitespace characters +// ref to https://github.com/torvalds/linux/blob/master/net/core/dev.c#L1024 +func ValidateInterfaceName(ifName string) *types.Error { + if len(ifName) == 0 { + return types.NewError(types.ErrInvalidEnvironmentVariables, "interface name is empty", "") + } + if len(ifName) > maxInterfaceNameLength { + return types.NewError(types.ErrInvalidEnvironmentVariables, "interface name is too long", fmt.Sprintf("interface name should be less than %d characters", maxInterfaceNameLength+1)) + } + if ifName == "." || ifName == ".." { + return types.NewError(types.ErrInvalidEnvironmentVariables, "interface name is . or ..", "") + } + for _, r := range bytes.Runes([]byte(ifName)) { + if r == '/' || r == ':' || unicode.IsSpace(r) { + return types.NewError(types.ErrInvalidEnvironmentVariables, "interface name contains / or : or whitespace characters", "") + } + } + + return nil +} diff --git a/vendor/github.com/containernetworking/cni/pkg/version/conf.go b/vendor/github.com/containernetworking/cni/pkg/version/conf.go new file mode 100644 index 000000000..808c33b83 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/version/conf.go @@ -0,0 +1,26 @@ +// Copyright 2016 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package version + +import ( + "github.com/containernetworking/cni/pkg/types/create" +) + +// ConfigDecoder can decode the CNI version available in network config data +type ConfigDecoder struct{} + +func (*ConfigDecoder) Decode(jsonBytes []byte) (string, error) { + return create.DecodeVersion(jsonBytes) +} diff --git a/vendor/github.com/containernetworking/cni/pkg/version/plugin.go b/vendor/github.com/containernetworking/cni/pkg/version/plugin.go new file mode 100644 index 000000000..17b22b6b0 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/version/plugin.go @@ -0,0 +1,144 @@ +// Copyright 2016 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package version + +import ( + "encoding/json" + "fmt" + "io" + "strconv" + "strings" +) + +// PluginInfo reports information about CNI versioning +type PluginInfo interface { + // SupportedVersions returns one or more CNI spec versions that the plugin + // supports. If input is provided in one of these versions, then the plugin + // promises to use the same CNI version in its response + SupportedVersions() []string + + // Encode writes this CNI version information as JSON to the given Writer + Encode(io.Writer) error +} + +type pluginInfo struct { + CNIVersion_ string `json:"cniVersion"` + SupportedVersions_ []string `json:"supportedVersions,omitempty"` +} + +// pluginInfo implements the PluginInfo interface +var _ PluginInfo = &pluginInfo{} + +func (p *pluginInfo) Encode(w io.Writer) error { + return json.NewEncoder(w).Encode(p) +} + +func (p *pluginInfo) SupportedVersions() []string { + return p.SupportedVersions_ +} + +// PluginSupports returns a new PluginInfo that will report the given versions +// as supported +func PluginSupports(supportedVersions ...string) PluginInfo { + if len(supportedVersions) < 1 { + panic("programmer error: you must support at least one version") + } + return &pluginInfo{ + CNIVersion_: Current(), + SupportedVersions_: supportedVersions, + } +} + +// PluginDecoder can decode the response returned by a plugin's VERSION command +type PluginDecoder struct{} + +func (*PluginDecoder) Decode(jsonBytes []byte) (PluginInfo, error) { + var info pluginInfo + err := json.Unmarshal(jsonBytes, &info) + if err != nil { + return nil, fmt.Errorf("decoding version info: %w", err) + } + if info.CNIVersion_ == "" { + return nil, fmt.Errorf("decoding version info: missing field cniVersion") + } + if len(info.SupportedVersions_) == 0 { + if info.CNIVersion_ == "0.2.0" { + return PluginSupports("0.1.0", "0.2.0"), nil + } + return nil, fmt.Errorf("decoding version info: missing field supportedVersions") + } + return &info, nil +} + +// ParseVersion parses a version string like "3.0.1" or "0.4.5" into major, +// minor, and micro numbers or returns an error +func ParseVersion(version string) (int, int, int, error) { + var major, minor, micro int + if version == "" { // special case: no version declared == v0.1.0 + return 0, 1, 0, nil + } + + parts := strings.Split(version, ".") + if len(parts) >= 4 { + return -1, -1, -1, fmt.Errorf("invalid version %q: too many parts", version) + } + + major, err := strconv.Atoi(parts[0]) + if err != nil { + return -1, -1, -1, fmt.Errorf("failed to convert major version part %q: %w", parts[0], err) + } + + if len(parts) >= 2 { + minor, err = strconv.Atoi(parts[1]) + if err != nil { + return -1, -1, -1, fmt.Errorf("failed to convert minor version part %q: %w", parts[1], err) + } + } + + if len(parts) >= 3 { + micro, err = strconv.Atoi(parts[2]) + if err != nil { + return -1, -1, -1, fmt.Errorf("failed to convert micro version part %q: %w", parts[2], err) + } + } + + return major, minor, micro, nil +} + +// GreaterThanOrEqualTo takes two string versions, parses them into major/minor/micro +// numbers, and compares them to determine whether the first version is greater +// than or equal to the second +func GreaterThanOrEqualTo(version, otherVersion string) (bool, error) { + firstMajor, firstMinor, firstMicro, err := ParseVersion(version) + if err != nil { + return false, err + } + + secondMajor, secondMinor, secondMicro, err := ParseVersion(otherVersion) + if err != nil { + return false, err + } + + if firstMajor > secondMajor { + return true, nil + } else if firstMajor == secondMajor { + if firstMinor > secondMinor { + return true, nil + } else if firstMinor == secondMinor && firstMicro >= secondMicro { + return true, nil + } + } + return false, nil +} diff --git a/vendor/github.com/containernetworking/cni/pkg/version/reconcile.go b/vendor/github.com/containernetworking/cni/pkg/version/reconcile.go new file mode 100644 index 000000000..25c3810b2 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/version/reconcile.go @@ -0,0 +1,49 @@ +// Copyright 2016 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package version + +import "fmt" + +type ErrorIncompatible struct { + Config string + Supported []string +} + +func (e *ErrorIncompatible) Details() string { + return fmt.Sprintf("config is %q, plugin supports %q", e.Config, e.Supported) +} + +func (e *ErrorIncompatible) Error() string { + return fmt.Sprintf("incompatible CNI versions: %s", e.Details()) +} + +type Reconciler struct{} + +func (r *Reconciler) Check(configVersion string, pluginInfo PluginInfo) *ErrorIncompatible { + return r.CheckRaw(configVersion, pluginInfo.SupportedVersions()) +} + +func (*Reconciler) CheckRaw(configVersion string, supportedVersions []string) *ErrorIncompatible { + for _, supportedVersion := range supportedVersions { + if configVersion == supportedVersion { + return nil + } + } + + return &ErrorIncompatible{ + Config: configVersion, + Supported: supportedVersions, + } +} diff --git a/vendor/github.com/containernetworking/cni/pkg/version/version.go b/vendor/github.com/containernetworking/cni/pkg/version/version.go new file mode 100644 index 000000000..1326f8038 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/version/version.go @@ -0,0 +1,89 @@ +// Copyright 2016 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package version + +import ( + "encoding/json" + "fmt" + + "github.com/containernetworking/cni/pkg/types" + types100 "github.com/containernetworking/cni/pkg/types/100" + "github.com/containernetworking/cni/pkg/types/create" +) + +// Current reports the version of the CNI spec implemented by this library +func Current() string { + return types100.ImplementedSpecVersion +} + +// Legacy PluginInfo describes a plugin that is backwards compatible with the +// CNI spec version 0.1.0. In particular, a runtime compiled against the 0.1.0 +// library ought to work correctly with a plugin that reports support for +// Legacy versions. +// +// Any future CNI spec versions which meet this definition should be added to +// this list. +var Legacy = PluginSupports("0.1.0", "0.2.0") +var All = PluginSupports("0.1.0", "0.2.0", "0.3.0", "0.3.1", "0.4.0", "1.0.0") + +// VersionsFrom returns a list of versions starting from min, inclusive +func VersionsStartingFrom(min string) PluginInfo { + out := []string{} + // cheat, just assume ordered + ok := false + for _, v := range All.SupportedVersions() { + if !ok && v == min { + ok = true + } + if ok { + out = append(out, v) + } + } + return PluginSupports(out...) +} + +// Finds a Result object matching the requested version (if any) and asks +// that object to parse the plugin result, returning an error if parsing failed. +func NewResult(version string, resultBytes []byte) (types.Result, error) { + return create.Create(version, resultBytes) +} + +// ParsePrevResult parses a prevResult in a NetConf structure and sets +// the NetConf's PrevResult member to the parsed Result object. +func ParsePrevResult(conf *types.NetConf) error { + if conf.RawPrevResult == nil { + return nil + } + + // Prior to 1.0.0, Result types may not marshal a CNIVersion. Since the + // result version must match the config version, if the Result's version + // is empty, inject the config version. + if ver, ok := conf.RawPrevResult["CNIVersion"]; !ok || ver == "" { + conf.RawPrevResult["CNIVersion"] = conf.CNIVersion + } + + resultBytes, err := json.Marshal(conf.RawPrevResult) + if err != nil { + return fmt.Errorf("could not serialize prevResult: %w", err) + } + + conf.RawPrevResult = nil + conf.PrevResult, err = create.Create(conf.CNIVersion, resultBytes) + if err != nil { + return fmt.Errorf("could not parse prevResult: %w", err) + } + + return nil +} diff --git a/vendor/github.com/containernetworking/plugins/LICENSE b/vendor/github.com/containernetworking/plugins/LICENSE new file mode 100644 index 000000000..8dada3eda --- /dev/null +++ b/vendor/github.com/containernetworking/plugins/LICENSE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. For the purposes of this definition, + "control" means (i) the power, direct or indirect, to cause the + direction or management of such entity, whether by contract or + otherwise, or (ii) ownership of fifty percent (50%) or more of the + outstanding shares, or (iii) beneficial ownership of such entity. + + "You" (or "Your") shall mean an individual or Legal Entity + exercising permissions granted by this License. + + "Source" form shall mean the preferred form for making modifications, + including but not limited to software source code, documentation + source, and configuration files. + + "Object" form shall mean any form resulting from mechanical + transformation or translation of a Source form, including but + not limited to compiled object code, generated documentation, + and conversions to other media types. + + "Work" shall mean the work of authorship, whether in Source or + Object form, made available under the License, as indicated by a + copyright notice that is included in or attached to the work + (an example is provided in the Appendix below). + + "Derivative Works" shall mean any work, whether in Source or Object + form, that is based on (or derived from) the Work and for which the + editorial revisions, annotations, elaborations, or other modifications + represent, as a whole, an original work of authorship. For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + + 2. Grant of Copyright License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + + 3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "{}" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright {yyyy} {name of copyright owner} + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/vendor/github.com/containernetworking/plugins/pkg/ip/addr_linux.go b/vendor/github.com/containernetworking/plugins/pkg/ip/addr_linux.go new file mode 100644 index 000000000..b4db50b9a --- /dev/null +++ b/vendor/github.com/containernetworking/plugins/pkg/ip/addr_linux.go @@ -0,0 +1,68 @@ +// Copyright 2017 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package ip + +import ( + "fmt" + "syscall" + "time" + + "github.com/vishvananda/netlink" +) + +const SETTLE_INTERVAL = 50 * time.Millisecond + +// SettleAddresses waits for all addresses on a link to leave tentative state. +// This is particularly useful for ipv6, where all addresses need to do DAD. +// There is no easy way to wait for this as an event, so just loop until the +// addresses are no longer tentative. +// If any addresses are still tentative after timeout seconds, then error. +func SettleAddresses(ifName string, timeout int) error { + link, err := netlink.LinkByName(ifName) + if err != nil { + return fmt.Errorf("failed to retrieve link: %v", err) + } + + deadline := time.Now().Add(time.Duration(timeout) * time.Second) + for { + addrs, err := netlink.AddrList(link, netlink.FAMILY_ALL) + if err != nil { + return fmt.Errorf("could not list addresses: %v", err) + } + + if len(addrs) == 0 { + return nil + } + + ok := true + for _, addr := range addrs { + if addr.Flags&(syscall.IFA_F_TENTATIVE|syscall.IFA_F_DADFAILED) > 0 { + ok = false + break // Break out of the `range addrs`, not the `for` + } + } + + if ok { + return nil + } + if time.Now().After(deadline) { + return fmt.Errorf("link %s still has tentative addresses after %d seconds", + ifName, + timeout) + } + + time.Sleep(SETTLE_INTERVAL) + } +} diff --git a/vendor/github.com/containernetworking/plugins/pkg/ip/cidr.go b/vendor/github.com/containernetworking/plugins/pkg/ip/cidr.go new file mode 100644 index 000000000..8b380fc74 --- /dev/null +++ b/vendor/github.com/containernetworking/plugins/pkg/ip/cidr.go @@ -0,0 +1,105 @@ +// Copyright 2015 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package ip + +import ( + "math/big" + "net" +) + +// NextIP returns IP incremented by 1, if IP is invalid, return nil +func NextIP(ip net.IP) net.IP { + normalizedIP := normalizeIP(ip) + if normalizedIP == nil { + return nil + } + + i := ipToInt(normalizedIP) + return intToIP(i.Add(i, big.NewInt(1)), len(normalizedIP) == net.IPv6len) +} + +// PrevIP returns IP decremented by 1, if IP is invalid, return nil +func PrevIP(ip net.IP) net.IP { + normalizedIP := normalizeIP(ip) + if normalizedIP == nil { + return nil + } + + i := ipToInt(normalizedIP) + return intToIP(i.Sub(i, big.NewInt(1)), len(normalizedIP) == net.IPv6len) +} + +// Cmp compares two IPs, returning the usual ordering: +// a < b : -1 +// a == b : 0 +// a > b : 1 +// incomparable : -2 +func Cmp(a, b net.IP) int { + normalizedA := normalizeIP(a) + normalizedB := normalizeIP(b) + + if len(normalizedA) == len(normalizedB) && len(normalizedA) != 0 { + return ipToInt(normalizedA).Cmp(ipToInt(normalizedB)) + } + + return -2 +} + +func ipToInt(ip net.IP) *big.Int { + return big.NewInt(0).SetBytes(ip) +} + +func intToIP(i *big.Int, isIPv6 bool) net.IP { + intBytes := i.Bytes() + + if len(intBytes) == net.IPv4len || len(intBytes) == net.IPv6len { + return intBytes + } + + if isIPv6 { + return append(make([]byte, net.IPv6len-len(intBytes)), intBytes...) + } + + return append(make([]byte, net.IPv4len-len(intBytes)), intBytes...) +} + +// normalizeIP will normalize IP by family, +// IPv4 : 4-byte form +// IPv6 : 16-byte form +// others : nil +func normalizeIP(ip net.IP) net.IP { + if ipTo4 := ip.To4(); ipTo4 != nil { + return ipTo4 + } + return ip.To16() +} + +// Network masks off the host portion of the IP, if IPNet is invalid, +// return nil +func Network(ipn *net.IPNet) *net.IPNet { + if ipn == nil { + return nil + } + + maskedIP := ipn.IP.Mask(ipn.Mask) + if maskedIP == nil { + return nil + } + + return &net.IPNet{ + IP: maskedIP, + Mask: ipn.Mask, + } +} diff --git a/vendor/github.com/containernetworking/plugins/pkg/ip/ip.go b/vendor/github.com/containernetworking/plugins/pkg/ip/ip.go new file mode 100644 index 000000000..4469e1b5d --- /dev/null +++ b/vendor/github.com/containernetworking/plugins/pkg/ip/ip.go @@ -0,0 +1,105 @@ +// Copyright 2021 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package ip + +import ( + "fmt" + "net" + "strings" +) + +// IP is a CNI maintained type inherited from net.IPNet which can +// represent a single IP address with or without prefix. +type IP struct { + net.IPNet +} + +// newIP will create an IP with net.IP and net.IPMask +func newIP(ip net.IP, mask net.IPMask) *IP { + return &IP{ + IPNet: net.IPNet{ + IP: ip, + Mask: mask, + }, + } +} + +// ParseIP will parse string s as an IP, and return it. +// The string s must be formed like [/]. +// If s is not a valid textual representation of an IP, +// will return nil. +func ParseIP(s string) *IP { + if strings.ContainsAny(s, "/") { + ip, ipNet, err := net.ParseCIDR(s) + if err != nil { + return nil + } + return newIP(ip, ipNet.Mask) + } else { + ip := net.ParseIP(s) + if ip == nil { + return nil + } + return newIP(ip, nil) + } +} + +// ToIP will return a net.IP in standard form from this IP. +// If this IP can not be converted to a valid net.IP, will return nil. +func (i *IP) ToIP() net.IP { + switch { + case i.IP.To4() != nil: + return i.IP.To4() + case i.IP.To16() != nil: + return i.IP.To16() + default: + return nil + } +} + +// String returns the string form of this IP. +func (i *IP) String() string { + if len(i.Mask) > 0 { + return i.IPNet.String() + } + return i.IP.String() +} + +// MarshalText implements the encoding.TextMarshaler interface. +// The encoding is the same as returned by String, +// But when len(ip) is zero, will return an empty slice. +func (i *IP) MarshalText() ([]byte, error) { + if len(i.IP) == 0 { + return []byte{}, nil + } + return []byte(i.String()), nil +} + +// UnmarshalText implements the encoding.TextUnmarshaler interface. +// The textual bytes are expected in a form accepted by Parse, +// But when len(b) is zero, will return an empty IP. +func (i *IP) UnmarshalText(b []byte) error { + if len(b) == 0 { + *i = IP{} + return nil + } + + ip := ParseIP(string(b)) + if ip == nil { + return fmt.Errorf("invalid IP address %s", string(b)) + } + *i = *ip + return nil +} diff --git a/vendor/github.com/containernetworking/plugins/pkg/ip/ipforward_linux.go b/vendor/github.com/containernetworking/plugins/pkg/ip/ipforward_linux.go new file mode 100644 index 000000000..0e8b6b691 --- /dev/null +++ b/vendor/github.com/containernetworking/plugins/pkg/ip/ipforward_linux.go @@ -0,0 +1,62 @@ +// Copyright 2015 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package ip + +import ( + "bytes" + "os" + + current "github.com/containernetworking/cni/pkg/types/100" +) + +func EnableIP4Forward() error { + return echo1("/proc/sys/net/ipv4/ip_forward") +} + +func EnableIP6Forward() error { + return echo1("/proc/sys/net/ipv6/conf/all/forwarding") +} + +// EnableForward will enable forwarding for all configured +// address families +func EnableForward(ips []*current.IPConfig) error { + v4 := false + v6 := false + + for _, ip := range ips { + isV4 := ip.Address.IP.To4() != nil + if isV4 && !v4 { + if err := EnableIP4Forward(); err != nil { + return err + } + v4 = true + } else if !isV4 && !v6 { + if err := EnableIP6Forward(); err != nil { + return err + } + v6 = true + } + } + return nil +} + +func echo1(f string) error { + if content, err := os.ReadFile(f); err == nil { + if bytes.Equal(bytes.TrimSpace(content), []byte("1")) { + return nil + } + } + return os.WriteFile(f, []byte("1"), 0644) +} diff --git a/vendor/github.com/containernetworking/plugins/pkg/ip/ipmasq_linux.go b/vendor/github.com/containernetworking/plugins/pkg/ip/ipmasq_linux.go new file mode 100644 index 000000000..cc640a605 --- /dev/null +++ b/vendor/github.com/containernetworking/plugins/pkg/ip/ipmasq_linux.go @@ -0,0 +1,126 @@ +// Copyright 2015 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package ip + +import ( + "fmt" + "net" + + "github.com/coreos/go-iptables/iptables" +) + +// SetupIPMasq installs iptables rules to masquerade traffic +// coming from ip of ipn and going outside of ipn +func SetupIPMasq(ipn *net.IPNet, chain string, comment string) error { + isV6 := ipn.IP.To4() == nil + + var ipt *iptables.IPTables + var err error + var multicastNet string + + if isV6 { + ipt, err = iptables.NewWithProtocol(iptables.ProtocolIPv6) + multicastNet = "ff00::/8" + } else { + ipt, err = iptables.NewWithProtocol(iptables.ProtocolIPv4) + multicastNet = "224.0.0.0/4" + } + if err != nil { + return fmt.Errorf("failed to locate iptables: %v", err) + } + + // Create chain if doesn't exist + exists := false + chains, err := ipt.ListChains("nat") + if err != nil { + return fmt.Errorf("failed to list chains: %v", err) + } + for _, ch := range chains { + if ch == chain { + exists = true + break + } + } + if !exists { + if err = ipt.NewChain("nat", chain); err != nil { + return err + } + } + + // Packets to this network should not be touched + if err := ipt.AppendUnique("nat", chain, "-d", ipn.String(), "-j", "ACCEPT", "-m", "comment", "--comment", comment); err != nil { + return err + } + + // Don't masquerade multicast - pods should be able to talk to other pods + // on the local network via multicast. + if err := ipt.AppendUnique("nat", chain, "!", "-d", multicastNet, "-j", "MASQUERADE", "-m", "comment", "--comment", comment); err != nil { + return err + } + + // Packets from the specific IP of this network will hit the chain + return ipt.AppendUnique("nat", "POSTROUTING", "-s", ipn.IP.String(), "-j", chain, "-m", "comment", "--comment", comment) +} + +// TeardownIPMasq undoes the effects of SetupIPMasq +func TeardownIPMasq(ipn *net.IPNet, chain string, comment string) error { + isV6 := ipn.IP.To4() == nil + + var ipt *iptables.IPTables + var err error + + if isV6 { + ipt, err = iptables.NewWithProtocol(iptables.ProtocolIPv6) + } else { + ipt, err = iptables.NewWithProtocol(iptables.ProtocolIPv4) + } + if err != nil { + return fmt.Errorf("failed to locate iptables: %v", err) + } + + err = ipt.Delete("nat", "POSTROUTING", "-s", ipn.IP.String(), "-j", chain, "-m", "comment", "--comment", comment) + if err != nil && !isNotExist(err) { + return err + } + + // for downward compatibility + err = ipt.Delete("nat", "POSTROUTING", "-s", ipn.String(), "-j", chain, "-m", "comment", "--comment", comment) + if err != nil && !isNotExist(err) { + return err + } + + err = ipt.ClearChain("nat", chain) + if err != nil && !isNotExist(err) { + return err + + } + + err = ipt.DeleteChain("nat", chain) + if err != nil && !isNotExist(err) { + return err + } + + return nil +} + +// isNotExist returnst true if the error is from iptables indicating +// that the target does not exist. +func isNotExist(err error) bool { + e, ok := err.(*iptables.Error) + if !ok { + return false + } + return e.IsNotExist() +} diff --git a/vendor/github.com/containernetworking/plugins/pkg/ip/link_linux.go b/vendor/github.com/containernetworking/plugins/pkg/ip/link_linux.go new file mode 100644 index 000000000..91f931b57 --- /dev/null +++ b/vendor/github.com/containernetworking/plugins/pkg/ip/link_linux.go @@ -0,0 +1,261 @@ +// Copyright 2015 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package ip + +import ( + "crypto/rand" + "errors" + "fmt" + "net" + "os" + + "github.com/safchain/ethtool" + "github.com/vishvananda/netlink" + + "github.com/containernetworking/plugins/pkg/ns" + "github.com/containernetworking/plugins/pkg/utils/sysctl" +) + +var ( + ErrLinkNotFound = errors.New("link not found") +) + +// makeVethPair is called from within the container's network namespace +func makeVethPair(name, peer string, mtu int, mac string, hostNS ns.NetNS) (netlink.Link, error) { + veth := &netlink.Veth{ + LinkAttrs: netlink.LinkAttrs{ + Name: name, + MTU: mtu, + }, + PeerName: peer, + PeerNamespace: netlink.NsFd(int(hostNS.Fd())), + } + if mac != "" { + m, err := net.ParseMAC(mac) + if err != nil { + return nil, err + } + veth.LinkAttrs.HardwareAddr = m + } + if err := netlink.LinkAdd(veth); err != nil { + return nil, err + } + // Re-fetch the container link to get its creation-time parameters, e.g. index and mac + veth2, err := netlink.LinkByName(name) + if err != nil { + netlink.LinkDel(veth) // try and clean up the link if possible. + return nil, err + } + + return veth2, nil +} + +func peerExists(name string) bool { + if _, err := netlink.LinkByName(name); err != nil { + return false + } + return true +} + +func makeVeth(name, vethPeerName string, mtu int, mac string, hostNS ns.NetNS) (peerName string, veth netlink.Link, err error) { + for i := 0; i < 10; i++ { + if vethPeerName != "" { + peerName = vethPeerName + } else { + peerName, err = RandomVethName() + if err != nil { + return + } + } + + veth, err = makeVethPair(name, peerName, mtu, mac, hostNS) + switch { + case err == nil: + return + + case os.IsExist(err): + if peerExists(peerName) && vethPeerName == "" { + continue + } + err = fmt.Errorf("container veth name provided (%v) already exists", name) + return + + default: + err = fmt.Errorf("failed to make veth pair: %v", err) + return + } + } + + // should really never be hit + err = fmt.Errorf("failed to find a unique veth name") + return +} + +// RandomVethName returns string "veth" with random prefix (hashed from entropy) +func RandomVethName() (string, error) { + entropy := make([]byte, 4) + _, err := rand.Read(entropy) + if err != nil { + return "", fmt.Errorf("failed to generate random veth name: %v", err) + } + + // NetworkManager (recent versions) will ignore veth devices that start with "veth" + return fmt.Sprintf("veth%x", entropy), nil +} + +func RenameLink(curName, newName string) error { + link, err := netlink.LinkByName(curName) + if err == nil { + err = netlink.LinkSetName(link, newName) + } + return err +} + +func ifaceFromNetlinkLink(l netlink.Link) net.Interface { + a := l.Attrs() + return net.Interface{ + Index: a.Index, + MTU: a.MTU, + Name: a.Name, + HardwareAddr: a.HardwareAddr, + Flags: a.Flags, + } +} + +// SetupVethWithName sets up a pair of virtual ethernet devices. +// Call SetupVethWithName from inside the container netns. It will create both veth +// devices and move the host-side veth into the provided hostNS namespace. +// hostVethName: If hostVethName is not specified, the host-side veth name will use a random string. +// On success, SetupVethWithName returns (hostVeth, containerVeth, nil) +func SetupVethWithName(contVethName, hostVethName string, mtu int, contVethMac string, hostNS ns.NetNS) (net.Interface, net.Interface, error) { + hostVethName, contVeth, err := makeVeth(contVethName, hostVethName, mtu, contVethMac, hostNS) + if err != nil { + return net.Interface{}, net.Interface{}, err + } + + var hostVeth netlink.Link + err = hostNS.Do(func(_ ns.NetNS) error { + hostVeth, err = netlink.LinkByName(hostVethName) + if err != nil { + return fmt.Errorf("failed to lookup %q in %q: %v", hostVethName, hostNS.Path(), err) + } + + if err = netlink.LinkSetUp(hostVeth); err != nil { + return fmt.Errorf("failed to set %q up: %v", hostVethName, err) + } + + // we want to own the routes for this interface + _, _ = sysctl.Sysctl(fmt.Sprintf("net/ipv6/conf/%s/accept_ra", hostVethName), "0") + return nil + }) + if err != nil { + return net.Interface{}, net.Interface{}, err + } + return ifaceFromNetlinkLink(hostVeth), ifaceFromNetlinkLink(contVeth), nil +} + +// SetupVeth sets up a pair of virtual ethernet devices. +// Call SetupVeth from inside the container netns. It will create both veth +// devices and move the host-side veth into the provided hostNS namespace. +// On success, SetupVeth returns (hostVeth, containerVeth, nil) +func SetupVeth(contVethName string, mtu int, contVethMac string, hostNS ns.NetNS) (net.Interface, net.Interface, error) { + return SetupVethWithName(contVethName, "", mtu, contVethMac, hostNS) +} + +// DelLinkByName removes an interface link. +func DelLinkByName(ifName string) error { + iface, err := netlink.LinkByName(ifName) + if err != nil { + if _, ok := err.(netlink.LinkNotFoundError); ok { + return ErrLinkNotFound + } + return fmt.Errorf("failed to lookup %q: %v", ifName, err) + } + + if err = netlink.LinkDel(iface); err != nil { + return fmt.Errorf("failed to delete %q: %v", ifName, err) + } + + return nil +} + +// DelLinkByNameAddr remove an interface and returns its addresses +func DelLinkByNameAddr(ifName string) ([]*net.IPNet, error) { + iface, err := netlink.LinkByName(ifName) + if err != nil { + if _, ok := err.(netlink.LinkNotFoundError); ok { + return nil, ErrLinkNotFound + } + return nil, fmt.Errorf("failed to lookup %q: %v", ifName, err) + } + + addrs, err := netlink.AddrList(iface, netlink.FAMILY_ALL) + if err != nil { + return nil, fmt.Errorf("failed to get IP addresses for %q: %v", ifName, err) + } + + if err = netlink.LinkDel(iface); err != nil { + return nil, fmt.Errorf("failed to delete %q: %v", ifName, err) + } + + out := []*net.IPNet{} + for _, addr := range addrs { + if addr.IP.IsGlobalUnicast() { + out = append(out, addr.IPNet) + } + } + + return out, nil +} + +// GetVethPeerIfindex returns the veth link object, the peer ifindex of the +// veth, or an error. This peer ifindex will only be valid in the peer's +// network namespace. +func GetVethPeerIfindex(ifName string) (netlink.Link, int, error) { + link, err := netlink.LinkByName(ifName) + if err != nil { + return nil, -1, fmt.Errorf("could not look up %q: %v", ifName, err) + } + if _, ok := link.(*netlink.Veth); !ok { + return nil, -1, fmt.Errorf("interface %q was not a veth interface", ifName) + } + + // veth supports IFLA_LINK (what vishvananda/netlink calls ParentIndex) + // on 4.1 and higher kernels + peerIndex := link.Attrs().ParentIndex + if peerIndex <= 0 { + // Fall back to ethtool for 4.0 and earlier kernels + e, err := ethtool.NewEthtool() + if err != nil { + return nil, -1, fmt.Errorf("failed to initialize ethtool: %v", err) + } + defer e.Close() + + stats, err := e.Stats(link.Attrs().Name) + if err != nil { + return nil, -1, fmt.Errorf("failed to request ethtool stats: %v", err) + } + n, ok := stats["peer_ifindex"] + if !ok { + return nil, -1, fmt.Errorf("failed to find 'peer_ifindex' in ethtool stats") + } + if n > 32767 || n == 0 { + return nil, -1, fmt.Errorf("invalid 'peer_ifindex' %d", n) + } + peerIndex = int(n) + } + + return link, peerIndex, nil +} diff --git a/vendor/github.com/containernetworking/plugins/pkg/ip/route_linux.go b/vendor/github.com/containernetworking/plugins/pkg/ip/route_linux.go new file mode 100644 index 000000000..e92b6c53e --- /dev/null +++ b/vendor/github.com/containernetworking/plugins/pkg/ip/route_linux.go @@ -0,0 +1,52 @@ +// Copyright 2015-2017 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package ip + +import ( + "net" + + "github.com/vishvananda/netlink" +) + +// AddRoute adds a universally-scoped route to a device. +func AddRoute(ipn *net.IPNet, gw net.IP, dev netlink.Link) error { + return netlink.RouteAdd(&netlink.Route{ + LinkIndex: dev.Attrs().Index, + Scope: netlink.SCOPE_UNIVERSE, + Dst: ipn, + Gw: gw, + }) +} + +// AddHostRoute adds a host-scoped route to a device. +func AddHostRoute(ipn *net.IPNet, gw net.IP, dev netlink.Link) error { + return netlink.RouteAdd(&netlink.Route{ + LinkIndex: dev.Attrs().Index, + Scope: netlink.SCOPE_HOST, + Dst: ipn, + Gw: gw, + }) +} + +// AddDefaultRoute sets the default route on the given gateway. +func AddDefaultRoute(gw net.IP, dev netlink.Link) error { + var defNet *net.IPNet + if gw.To4() != nil { + _, defNet, _ = net.ParseCIDR("0.0.0.0/0") + } else { + _, defNet, _ = net.ParseCIDR("::/0") + } + return AddRoute(defNet, gw, dev) +} diff --git a/vendor/github.com/containernetworking/plugins/pkg/ip/utils_linux.go b/vendor/github.com/containernetworking/plugins/pkg/ip/utils_linux.go new file mode 100644 index 000000000..943117e18 --- /dev/null +++ b/vendor/github.com/containernetworking/plugins/pkg/ip/utils_linux.go @@ -0,0 +1,116 @@ +//go:build linux +// +build linux + +// Copyright 2016 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package ip + +import ( + "fmt" + "net" + + "github.com/containernetworking/cni/pkg/types" + current "github.com/containernetworking/cni/pkg/types/100" + "github.com/vishvananda/netlink" +) + +func ValidateExpectedInterfaceIPs(ifName string, resultIPs []*current.IPConfig) error { + + // Ensure ips + for _, ips := range resultIPs { + ourAddr := netlink.Addr{IPNet: &ips.Address} + match := false + + link, err := netlink.LinkByName(ifName) + if err != nil { + return fmt.Errorf("Cannot find container link %v", ifName) + } + + addrList, err := netlink.AddrList(link, netlink.FAMILY_ALL) + if err != nil { + return fmt.Errorf("Cannot obtain List of IP Addresses") + } + + for _, addr := range addrList { + if addr.Equal(ourAddr) { + match = true + break + } + } + if match == false { + return fmt.Errorf("Failed to match addr %v on interface %v", ourAddr, ifName) + } + + // Convert the host/prefixlen to just prefix for route lookup. + _, ourPrefix, err := net.ParseCIDR(ourAddr.String()) + + findGwy := &netlink.Route{Dst: ourPrefix} + routeFilter := netlink.RT_FILTER_DST + + family := netlink.FAMILY_V6 + if ips.Address.IP.To4() != nil { + family = netlink.FAMILY_V4 + } + + gwy, err := netlink.RouteListFiltered(family, findGwy, routeFilter) + if err != nil { + return fmt.Errorf("Error %v trying to find Gateway %v for interface %v", err, ips.Gateway, ifName) + } + if gwy == nil { + return fmt.Errorf("Failed to find Gateway %v for interface %v", ips.Gateway, ifName) + } + } + + return nil +} + +func ValidateExpectedRoute(resultRoutes []*types.Route) error { + + // Ensure that each static route in prevResults is found in the routing table + for _, route := range resultRoutes { + find := &netlink.Route{Dst: &route.Dst, Gw: route.GW} + routeFilter := netlink.RT_FILTER_DST | netlink.RT_FILTER_GW + var family int + + switch { + case route.Dst.IP.To4() != nil: + family = netlink.FAMILY_V4 + // Default route needs Dst set to nil + if route.Dst.String() == "0.0.0.0/0" { + find = &netlink.Route{Dst: nil, Gw: route.GW} + routeFilter = netlink.RT_FILTER_DST + } + case len(route.Dst.IP) == net.IPv6len: + family = netlink.FAMILY_V6 + // Default route needs Dst set to nil + if route.Dst.String() == "::/0" { + find = &netlink.Route{Dst: nil, Gw: route.GW} + routeFilter = netlink.RT_FILTER_DST + } + default: + return fmt.Errorf("Invalid static route found %v", route) + } + + wasFound, err := netlink.RouteListFiltered(family, find, routeFilter) + if err != nil { + return fmt.Errorf("Expected Route %v not route table lookup error %v", route, err) + } + if wasFound == nil { + return fmt.Errorf("Expected Route %v not found in routing table", route) + } + } + + return nil +} diff --git a/vendor/github.com/containernetworking/plugins/pkg/ns/README.md b/vendor/github.com/containernetworking/plugins/pkg/ns/README.md new file mode 100644 index 000000000..1e265c7a0 --- /dev/null +++ b/vendor/github.com/containernetworking/plugins/pkg/ns/README.md @@ -0,0 +1,41 @@ +### Namespaces, Threads, and Go +On Linux each OS thread can have a different network namespace. Go's thread scheduling model switches goroutines between OS threads based on OS thread load and whether the goroutine would block other goroutines. This can result in a goroutine switching network namespaces without notice and lead to errors in your code. + +### Namespace Switching +Switching namespaces with the `ns.Set()` method is not recommended without additional strategies to prevent unexpected namespace changes when your goroutines switch OS threads. + +Go provides the `runtime.LockOSThread()` function to ensure a specific goroutine executes on its current OS thread and prevents any other goroutine from running in that thread until the locked one exits. Careful usage of `LockOSThread()` and goroutines can provide good control over which network namespace a given goroutine executes in. + +For example, you cannot rely on the `ns.Set()` namespace being the current namespace after the `Set()` call unless you do two things. First, the goroutine calling `Set()` must have previously called `LockOSThread()`. Second, you must ensure `runtime.UnlockOSThread()` is not called somewhere in-between. You also cannot rely on the initial network namespace remaining the current network namespace if any other code in your program switches namespaces, unless you have already called `LockOSThread()` in that goroutine. Note that `LockOSThread()` prevents the Go scheduler from optimally scheduling goroutines for best performance, so `LockOSThread()` should only be used in small, isolated goroutines that release the lock quickly. + +### Do() The Recommended Thing +The `ns.Do()` method provides **partial** control over network namespaces for you by implementing these strategies. All code dependent on a particular network namespace (including the root namespace) should be wrapped in the `ns.Do()` method to ensure the correct namespace is selected for the duration of your code. For example: + +```go +err = targetNs.Do(func(hostNs ns.NetNS) error { + dummy := &netlink.Dummy{ + LinkAttrs: netlink.LinkAttrs{ + Name: "dummy0", + }, + } + return netlink.LinkAdd(dummy) +}) +``` + +Note this requirement to wrap every network call is very onerous - any libraries you call might call out to network services such as DNS, and all such calls need to be protected after you call `ns.Do()`. All goroutines spawned from within the `ns.Do` will not inherit the new namespace. The CNI plugins all exit very soon after calling `ns.Do()` which helps to minimize the problem. + +When a new thread is spawned in Linux, it inherits the namespace of its parent. In versions of go **prior to 1.10**, if the runtime spawns a new OS thread, it picks the parent randomly. If the chosen parent thread has been moved to a new namespace (even temporarily), the new OS thread will be permanently "stuck in the wrong namespace", and goroutines will non-deterministically switch namespaces as they are rescheduled. + +In short, **there was no safe way to change network namespaces, even temporarily, from within a long-lived, multithreaded Go process**. If you wish to do this, you must use go 1.10 or greater. + + +### Creating network namespaces +Earlier versions of this library managed namespace creation, but as CNI does not actually utilize this feature (and it was essentially unmaintained), it was removed. If you're writing a container runtime, you should implement namespace management yourself. However, there are some gotchas when doing so, especially around handling `/var/run/netns`. A reasonably correct reference implementation, borrowed from `rkt`, can be found in `pkg/testutils/netns_linux.go` if you're in need of a source of inspiration. + + +### Further Reading + - https://github.com/golang/go/wiki/LockOSThread + - http://morsmachine.dk/go-scheduler + - https://github.com/containernetworking/cni/issues/262 + - https://golang.org/pkg/runtime/ + - https://www.weave.works/blog/linux-namespaces-and-go-don-t-mix diff --git a/vendor/github.com/containernetworking/plugins/pkg/ns/ns_linux.go b/vendor/github.com/containernetworking/plugins/pkg/ns/ns_linux.go new file mode 100644 index 000000000..f260f2813 --- /dev/null +++ b/vendor/github.com/containernetworking/plugins/pkg/ns/ns_linux.go @@ -0,0 +1,234 @@ +// Copyright 2015-2017 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package ns + +import ( + "fmt" + "os" + "runtime" + "sync" + "syscall" + + "golang.org/x/sys/unix" +) + +// Returns an object representing the current OS thread's network namespace +func GetCurrentNS() (NetNS, error) { + // Lock the thread in case other goroutine executes in it and changes its + // network namespace after getCurrentThreadNetNSPath(), otherwise it might + // return an unexpected network namespace. + runtime.LockOSThread() + defer runtime.UnlockOSThread() + return GetNS(getCurrentThreadNetNSPath()) +} + +func getCurrentThreadNetNSPath() string { + // /proc/self/ns/net returns the namespace of the main thread, not + // of whatever thread this goroutine is running on. Make sure we + // use the thread's net namespace since the thread is switching around + return fmt.Sprintf("/proc/%d/task/%d/ns/net", os.Getpid(), unix.Gettid()) +} + +func (ns *netNS) Close() error { + if err := ns.errorIfClosed(); err != nil { + return err + } + + if err := ns.file.Close(); err != nil { + return fmt.Errorf("Failed to close %q: %v", ns.file.Name(), err) + } + ns.closed = true + + return nil +} + +func (ns *netNS) Set() error { + if err := ns.errorIfClosed(); err != nil { + return err + } + + if err := unix.Setns(int(ns.Fd()), unix.CLONE_NEWNET); err != nil { + return fmt.Errorf("Error switching to ns %v: %v", ns.file.Name(), err) + } + + return nil +} + +type NetNS interface { + // Executes the passed closure in this object's network namespace, + // attempting to restore the original namespace before returning. + // However, since each OS thread can have a different network namespace, + // and Go's thread scheduling is highly variable, callers cannot + // guarantee any specific namespace is set unless operations that + // require that namespace are wrapped with Do(). Also, no code called + // from Do() should call runtime.UnlockOSThread(), or the risk + // of executing code in an incorrect namespace will be greater. See + // https://github.com/golang/go/wiki/LockOSThread for further details. + Do(toRun func(NetNS) error) error + + // Sets the current network namespace to this object's network namespace. + // Note that since Go's thread scheduling is highly variable, callers + // cannot guarantee the requested namespace will be the current namespace + // after this function is called; to ensure this wrap operations that + // require the namespace with Do() instead. + Set() error + + // Returns the filesystem path representing this object's network namespace + Path() string + + // Returns a file descriptor representing this object's network namespace + Fd() uintptr + + // Cleans up this instance of the network namespace; if this instance + // is the last user the namespace will be destroyed + Close() error +} + +type netNS struct { + file *os.File + closed bool +} + +// netNS implements the NetNS interface +var _ NetNS = &netNS{} + +const ( + // https://github.com/torvalds/linux/blob/master/include/uapi/linux/magic.h + NSFS_MAGIC = unix.NSFS_MAGIC + PROCFS_MAGIC = unix.PROC_SUPER_MAGIC +) + +type NSPathNotExistErr struct{ msg string } + +func (e NSPathNotExistErr) Error() string { return e.msg } + +type NSPathNotNSErr struct{ msg string } + +func (e NSPathNotNSErr) Error() string { return e.msg } + +func IsNSorErr(nspath string) error { + stat := syscall.Statfs_t{} + if err := syscall.Statfs(nspath, &stat); err != nil { + if os.IsNotExist(err) { + err = NSPathNotExistErr{msg: fmt.Sprintf("failed to Statfs %q: %v", nspath, err)} + } else { + err = fmt.Errorf("failed to Statfs %q: %v", nspath, err) + } + return err + } + + switch stat.Type { + case PROCFS_MAGIC, NSFS_MAGIC: + return nil + default: + return NSPathNotNSErr{msg: fmt.Sprintf("unknown FS magic on %q: %x", nspath, stat.Type)} + } +} + +// Returns an object representing the namespace referred to by @path +func GetNS(nspath string) (NetNS, error) { + err := IsNSorErr(nspath) + if err != nil { + return nil, err + } + + fd, err := os.Open(nspath) + if err != nil { + return nil, err + } + + return &netNS{file: fd}, nil +} + +func (ns *netNS) Path() string { + return ns.file.Name() +} + +func (ns *netNS) Fd() uintptr { + return ns.file.Fd() +} + +func (ns *netNS) errorIfClosed() error { + if ns.closed { + return fmt.Errorf("%q has already been closed", ns.file.Name()) + } + return nil +} + +func (ns *netNS) Do(toRun func(NetNS) error) error { + if err := ns.errorIfClosed(); err != nil { + return err + } + + containedCall := func(hostNS NetNS) error { + threadNS, err := GetCurrentNS() + if err != nil { + return fmt.Errorf("failed to open current netns: %v", err) + } + defer threadNS.Close() + + // switch to target namespace + if err = ns.Set(); err != nil { + return fmt.Errorf("error switching to ns %v: %v", ns.file.Name(), err) + } + defer func() { + err := threadNS.Set() // switch back + if err == nil { + // Unlock the current thread only when we successfully switched back + // to the original namespace; otherwise leave the thread locked which + // will force the runtime to scrap the current thread, that is maybe + // not as optimal but at least always safe to do. + runtime.UnlockOSThread() + } + }() + + return toRun(hostNS) + } + + // save a handle to current network namespace + hostNS, err := GetCurrentNS() + if err != nil { + return fmt.Errorf("Failed to open current namespace: %v", err) + } + defer hostNS.Close() + + var wg sync.WaitGroup + wg.Add(1) + + // Start the callback in a new green thread so that if we later fail + // to switch the namespace back to the original one, we can safely + // leave the thread locked to die without a risk of the current thread + // left lingering with incorrect namespace. + var innerError error + go func() { + defer wg.Done() + runtime.LockOSThread() + innerError = containedCall(hostNS) + }() + wg.Wait() + + return innerError +} + +// WithNetNSPath executes the passed closure under the given network +// namespace, restoring the original namespace afterwards. +func WithNetNSPath(nspath string, toRun func(NetNS) error) error { + ns, err := GetNS(nspath) + if err != nil { + return err + } + defer ns.Close() + return ns.Do(toRun) +} diff --git a/vendor/github.com/containernetworking/plugins/pkg/utils/sysctl/sysctl_linux.go b/vendor/github.com/containernetworking/plugins/pkg/utils/sysctl/sysctl_linux.go new file mode 100644 index 000000000..469e9be9e --- /dev/null +++ b/vendor/github.com/containernetworking/plugins/pkg/utils/sysctl/sysctl_linux.go @@ -0,0 +1,78 @@ +// Copyright 2016 CNI authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package sysctl + +import ( + "fmt" + "os" + "path/filepath" + "strings" +) + +// Sysctl provides a method to set/get values from /proc/sys - in linux systems +// new interface to set/get values of variables formerly handled by sysctl syscall +// If optional `params` have only one string value - this function will +// set this value into corresponding sysctl variable +func Sysctl(name string, params ...string) (string, error) { + if len(params) > 1 { + return "", fmt.Errorf("unexcepted additional parameters") + } else if len(params) == 1 { + return setSysctl(name, params[0]) + } + return getSysctl(name) +} + +func getSysctl(name string) (string, error) { + fullName := filepath.Join("/proc/sys", toNormalName(name)) + data, err := os.ReadFile(fullName) + if err != nil { + return "", err + } + + return string(data[:len(data)-1]), nil +} + +func setSysctl(name, value string) (string, error) { + fullName := filepath.Join("/proc/sys", toNormalName(name)) + if err := os.WriteFile(fullName, []byte(value), 0644); err != nil { + return "", err + } + + return getSysctl(name) +} + +// Normalize names by using slash as separator +// Sysctl names can use dots or slashes as separator: +// - if dots are used, dots and slashes are interchanged. +// - if slashes are used, slashes and dots are left intact. +// Separator in use is determined by first occurrence. +func toNormalName(name string) string { + interchange := false + for _, c := range name { + if c == '.' { + interchange = true + break + } + if c == '/' { + break + } + } + + if interchange { + r := strings.NewReplacer(".", "/", "/", ".") + return r.Replace(name) + } + return name +} diff --git a/vendor/github.com/coreos/go-iptables/LICENSE b/vendor/github.com/coreos/go-iptables/LICENSE new file mode 100644 index 000000000..37ec93a14 --- /dev/null +++ b/vendor/github.com/coreos/go-iptables/LICENSE @@ -0,0 +1,191 @@ +Apache License +Version 2.0, January 2004 +http://www.apache.org/licenses/ + +TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + +1. 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However, +in accepting such obligations, You may act only on Your own behalf and on Your +sole responsibility, not on behalf of any other Contributor, and only if You +agree to indemnify, defend, and hold each Contributor harmless for any liability +incurred by, or claims asserted against, such Contributor by reason of your +accepting any such warranty or additional liability. + +END OF TERMS AND CONDITIONS + +APPENDIX: How to apply the Apache License to your work + +To apply the Apache License to your work, attach the following boilerplate +notice, with the fields enclosed by brackets "[]" replaced with your own +identifying information. (Don't include the brackets!) The text should be +enclosed in the appropriate comment syntax for the file format. We also +recommend that a file or class name and description of purpose be included on +the same "printed page" as the copyright notice for easier identification within +third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/vendor/github.com/coreos/go-iptables/NOTICE b/vendor/github.com/coreos/go-iptables/NOTICE new file mode 100644 index 000000000..23a0ada2f --- /dev/null +++ b/vendor/github.com/coreos/go-iptables/NOTICE @@ -0,0 +1,5 @@ +CoreOS Project +Copyright 2018 CoreOS, Inc + +This product includes software developed at CoreOS, Inc. +(http://www.coreos.com/). diff --git a/vendor/github.com/coreos/go-iptables/iptables/iptables.go b/vendor/github.com/coreos/go-iptables/iptables/iptables.go new file mode 100644 index 000000000..85047e59d --- /dev/null +++ b/vendor/github.com/coreos/go-iptables/iptables/iptables.go @@ -0,0 +1,680 @@ +// Copyright 2015 CoreOS, Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package iptables + +import ( + "bytes" + "fmt" + "io" + "net" + "os/exec" + "regexp" + "strconv" + "strings" + "syscall" +) + +// Adds the output of stderr to exec.ExitError +type Error struct { + exec.ExitError + cmd exec.Cmd + msg string + exitStatus *int //for overriding +} + +func (e *Error) ExitStatus() int { + if e.exitStatus != nil { + return *e.exitStatus + } + return e.Sys().(syscall.WaitStatus).ExitStatus() +} + +func (e *Error) Error() string { + return fmt.Sprintf("running %v: exit status %v: %v", e.cmd.Args, e.ExitStatus(), e.msg) +} + +// IsNotExist returns true if the error is due to the chain or rule not existing +func (e *Error) IsNotExist() bool { + if e.ExitStatus() != 1 { + return false + } + msgNoRuleExist := "Bad rule (does a matching rule exist in that chain?).\n" + msgNoChainExist := "No chain/target/match by that name.\n" + return strings.Contains(e.msg, msgNoRuleExist) || strings.Contains(e.msg, msgNoChainExist) +} + +// Protocol to differentiate between IPv4 and IPv6 +type Protocol byte + +const ( + ProtocolIPv4 Protocol = iota + ProtocolIPv6 +) + +type IPTables struct { + path string + proto Protocol + hasCheck bool + hasWait bool + waitSupportSecond bool + hasRandomFully bool + v1 int + v2 int + v3 int + mode string // the underlying iptables operating mode, e.g. nf_tables + timeout int // time to wait for the iptables lock, default waits forever +} + +// Stat represents a structured statistic entry. +type Stat struct { + Packets uint64 `json:"pkts"` + Bytes uint64 `json:"bytes"` + Target string `json:"target"` + Protocol string `json:"prot"` + Opt string `json:"opt"` + Input string `json:"in"` + Output string `json:"out"` + Source *net.IPNet `json:"source"` + Destination *net.IPNet `json:"destination"` + Options string `json:"options"` +} + +type option func(*IPTables) + +func IPFamily(proto Protocol) option { + return func(ipt *IPTables) { + ipt.proto = proto + } +} + +func Timeout(timeout int) option { + return func(ipt *IPTables) { + ipt.timeout = timeout + } +} + +// New creates a new IPTables configured with the options passed as parameter. +// For backwards compatibility, by default always uses IPv4 and timeout 0. +// i.e. you can create an IPv6 IPTables using a timeout of 5 seconds passing +// the IPFamily and Timeout options as follow: +// ip6t := New(IPFamily(ProtocolIPv6), Timeout(5)) +func New(opts ...option) (*IPTables, error) { + + ipt := &IPTables{ + proto: ProtocolIPv4, + timeout: 0, + } + + for _, opt := range opts { + opt(ipt) + } + + path, err := exec.LookPath(getIptablesCommand(ipt.proto)) + if err != nil { + return nil, err + } + ipt.path = path + + vstring, err := getIptablesVersionString(path) + if err != nil { + return nil, fmt.Errorf("could not get iptables version: %v", err) + } + v1, v2, v3, mode, err := extractIptablesVersion(vstring) + if err != nil { + return nil, fmt.Errorf("failed to extract iptables version from [%s]: %v", vstring, err) + } + ipt.v1 = v1 + ipt.v2 = v2 + ipt.v3 = v3 + ipt.mode = mode + + checkPresent, waitPresent, waitSupportSecond, randomFullyPresent := getIptablesCommandSupport(v1, v2, v3) + ipt.hasCheck = checkPresent + ipt.hasWait = waitPresent + ipt.waitSupportSecond = waitSupportSecond + ipt.hasRandomFully = randomFullyPresent + + return ipt, nil +} + +// New creates a new IPTables for the given proto. +// The proto will determine which command is used, either "iptables" or "ip6tables". +func NewWithProtocol(proto Protocol) (*IPTables, error) { + return New(IPFamily(proto), Timeout(0)) +} + +// Proto returns the protocol used by this IPTables. +func (ipt *IPTables) Proto() Protocol { + return ipt.proto +} + +// Exists checks if given rulespec in specified table/chain exists +func (ipt *IPTables) Exists(table, chain string, rulespec ...string) (bool, error) { + if !ipt.hasCheck { + return ipt.existsForOldIptables(table, chain, rulespec) + + } + cmd := append([]string{"-t", table, "-C", chain}, rulespec...) + err := ipt.run(cmd...) + eerr, eok := err.(*Error) + switch { + case err == nil: + return true, nil + case eok && eerr.ExitStatus() == 1: + return false, nil + default: + return false, err + } +} + +// Insert inserts rulespec to specified table/chain (in specified pos) +func (ipt *IPTables) Insert(table, chain string, pos int, rulespec ...string) error { + cmd := append([]string{"-t", table, "-I", chain, strconv.Itoa(pos)}, rulespec...) + return ipt.run(cmd...) +} + +// Append appends rulespec to specified table/chain +func (ipt *IPTables) Append(table, chain string, rulespec ...string) error { + cmd := append([]string{"-t", table, "-A", chain}, rulespec...) + return ipt.run(cmd...) +} + +// AppendUnique acts like Append except that it won't add a duplicate +func (ipt *IPTables) AppendUnique(table, chain string, rulespec ...string) error { + exists, err := ipt.Exists(table, chain, rulespec...) + if err != nil { + return err + } + + if !exists { + return ipt.Append(table, chain, rulespec...) + } + + return nil +} + +// Delete removes rulespec in specified table/chain +func (ipt *IPTables) Delete(table, chain string, rulespec ...string) error { + cmd := append([]string{"-t", table, "-D", chain}, rulespec...) + return ipt.run(cmd...) +} + +func (ipt *IPTables) DeleteIfExists(table, chain string, rulespec ...string) error { + exists, err := ipt.Exists(table, chain, rulespec...) + if err == nil && exists { + err = ipt.Delete(table, chain, rulespec...) + } + return err +} + +// List rules in specified table/chain +func (ipt *IPTables) List(table, chain string) ([]string, error) { + args := []string{"-t", table, "-S", chain} + return ipt.executeList(args) +} + +// List rules (with counters) in specified table/chain +func (ipt *IPTables) ListWithCounters(table, chain string) ([]string, error) { + args := []string{"-t", table, "-v", "-S", chain} + return ipt.executeList(args) +} + +// ListChains returns a slice containing the name of each chain in the specified table. +func (ipt *IPTables) ListChains(table string) ([]string, error) { + args := []string{"-t", table, "-S"} + + result, err := ipt.executeList(args) + if err != nil { + return nil, err + } + + // Iterate over rules to find all default (-P) and user-specified (-N) chains. + // Chains definition always come before rules. + // Format is the following: + // -P OUTPUT ACCEPT + // -N Custom + var chains []string + for _, val := range result { + if strings.HasPrefix(val, "-P") || strings.HasPrefix(val, "-N") { + chains = append(chains, strings.Fields(val)[1]) + } else { + break + } + } + return chains, nil +} + +// '-S' is fine with non existing rule index as long as the chain exists +// therefore pass index 1 to reduce overhead for large chains +func (ipt *IPTables) ChainExists(table, chain string) (bool, error) { + err := ipt.run("-t", table, "-S", chain, "1") + eerr, eok := err.(*Error) + switch { + case err == nil: + return true, nil + case eok && eerr.ExitStatus() == 1: + return false, nil + default: + return false, err + } +} + +// Stats lists rules including the byte and packet counts +func (ipt *IPTables) Stats(table, chain string) ([][]string, error) { + args := []string{"-t", table, "-L", chain, "-n", "-v", "-x"} + lines, err := ipt.executeList(args) + if err != nil { + return nil, err + } + + appendSubnet := func(addr string) string { + if strings.IndexByte(addr, byte('/')) < 0 { + if strings.IndexByte(addr, '.') < 0 { + return addr + "/128" + } + return addr + "/32" + } + return addr + } + + ipv6 := ipt.proto == ProtocolIPv6 + + rows := [][]string{} + for i, line := range lines { + // Skip over chain name and field header + if i < 2 { + continue + } + + // Fields: + // 0=pkts 1=bytes 2=target 3=prot 4=opt 5=in 6=out 7=source 8=destination 9=options + line = strings.TrimSpace(line) + fields := strings.Fields(line) + + // The ip6tables verbose output cannot be naively split due to the default "opt" + // field containing 2 single spaces. + if ipv6 { + // Check if field 6 is "opt" or "source" address + dest := fields[6] + ip, _, _ := net.ParseCIDR(dest) + if ip == nil { + ip = net.ParseIP(dest) + } + + // If we detected a CIDR or IP, the "opt" field is empty.. insert it. + if ip != nil { + f := []string{} + f = append(f, fields[:4]...) + f = append(f, " ") // Empty "opt" field for ip6tables + f = append(f, fields[4:]...) + fields = f + } + } + + // Adjust "source" and "destination" to include netmask, to match regular + // List output + fields[7] = appendSubnet(fields[7]) + fields[8] = appendSubnet(fields[8]) + + // Combine "options" fields 9... into a single space-delimited field. + options := fields[9:] + fields = fields[:9] + fields = append(fields, strings.Join(options, " ")) + rows = append(rows, fields) + } + return rows, nil +} + +// ParseStat parses a single statistic row into a Stat struct. The input should +// be a string slice that is returned from calling the Stat method. +func (ipt *IPTables) ParseStat(stat []string) (parsed Stat, err error) { + // For forward-compatibility, expect at least 10 fields in the stat + if len(stat) < 10 { + return parsed, fmt.Errorf("stat contained fewer fields than expected") + } + + // Convert the fields that are not plain strings + parsed.Packets, err = strconv.ParseUint(stat[0], 0, 64) + if err != nil { + return parsed, fmt.Errorf(err.Error(), "could not parse packets") + } + parsed.Bytes, err = strconv.ParseUint(stat[1], 0, 64) + if err != nil { + return parsed, fmt.Errorf(err.Error(), "could not parse bytes") + } + _, parsed.Source, err = net.ParseCIDR(stat[7]) + if err != nil { + return parsed, fmt.Errorf(err.Error(), "could not parse source") + } + _, parsed.Destination, err = net.ParseCIDR(stat[8]) + if err != nil { + return parsed, fmt.Errorf(err.Error(), "could not parse destination") + } + + // Put the fields that are strings + parsed.Target = stat[2] + parsed.Protocol = stat[3] + parsed.Opt = stat[4] + parsed.Input = stat[5] + parsed.Output = stat[6] + parsed.Options = stat[9] + + return parsed, nil +} + +// StructuredStats returns statistics as structured data which may be further +// parsed and marshaled. +func (ipt *IPTables) StructuredStats(table, chain string) ([]Stat, error) { + rawStats, err := ipt.Stats(table, chain) + if err != nil { + return nil, err + } + + structStats := []Stat{} + for _, rawStat := range rawStats { + stat, err := ipt.ParseStat(rawStat) + if err != nil { + return nil, err + } + structStats = append(structStats, stat) + } + + return structStats, nil +} + +func (ipt *IPTables) executeList(args []string) ([]string, error) { + var stdout bytes.Buffer + if err := ipt.runWithOutput(args, &stdout); err != nil { + return nil, err + } + + rules := strings.Split(stdout.String(), "\n") + + // strip trailing newline + if len(rules) > 0 && rules[len(rules)-1] == "" { + rules = rules[:len(rules)-1] + } + + for i, rule := range rules { + rules[i] = filterRuleOutput(rule) + } + + return rules, nil +} + +// NewChain creates a new chain in the specified table. +// If the chain already exists, it will result in an error. +func (ipt *IPTables) NewChain(table, chain string) error { + return ipt.run("-t", table, "-N", chain) +} + +const existsErr = 1 + +// ClearChain flushed (deletes all rules) in the specified table/chain. +// If the chain does not exist, a new one will be created +func (ipt *IPTables) ClearChain(table, chain string) error { + err := ipt.NewChain(table, chain) + + eerr, eok := err.(*Error) + switch { + case err == nil: + return nil + case eok && eerr.ExitStatus() == existsErr: + // chain already exists. Flush (clear) it. + return ipt.run("-t", table, "-F", chain) + default: + return err + } +} + +// RenameChain renames the old chain to the new one. +func (ipt *IPTables) RenameChain(table, oldChain, newChain string) error { + return ipt.run("-t", table, "-E", oldChain, newChain) +} + +// DeleteChain deletes the chain in the specified table. +// The chain must be empty +func (ipt *IPTables) DeleteChain(table, chain string) error { + return ipt.run("-t", table, "-X", chain) +} + +func (ipt *IPTables) ClearAndDeleteChain(table, chain string) error { + exists, err := ipt.ChainExists(table, chain) + if err != nil || !exists { + return err + } + err = ipt.run("-t", table, "-F", chain) + if err == nil { + err = ipt.run("-t", table, "-X", chain) + } + return err +} + +func (ipt *IPTables) ClearAll() error { + return ipt.run("-F") +} + +func (ipt *IPTables) DeleteAll() error { + return ipt.run("-X") +} + +// ChangePolicy changes policy on chain to target +func (ipt *IPTables) ChangePolicy(table, chain, target string) error { + return ipt.run("-t", table, "-P", chain, target) +} + +// Check if the underlying iptables command supports the --random-fully flag +func (ipt *IPTables) HasRandomFully() bool { + return ipt.hasRandomFully +} + +// Return version components of the underlying iptables command +func (ipt *IPTables) GetIptablesVersion() (int, int, int) { + return ipt.v1, ipt.v2, ipt.v3 +} + +// run runs an iptables command with the given arguments, ignoring +// any stdout output +func (ipt *IPTables) run(args ...string) error { + return ipt.runWithOutput(args, nil) +} + +// runWithOutput runs an iptables command with the given arguments, +// writing any stdout output to the given writer +func (ipt *IPTables) runWithOutput(args []string, stdout io.Writer) error { + args = append([]string{ipt.path}, args...) + if ipt.hasWait { + args = append(args, "--wait") + if ipt.timeout != 0 && ipt.waitSupportSecond { + args = append(args, strconv.Itoa(ipt.timeout)) + } + } else { + fmu, err := newXtablesFileLock() + if err != nil { + return err + } + ul, err := fmu.tryLock() + if err != nil { + syscall.Close(fmu.fd) + return err + } + defer ul.Unlock() + } + + var stderr bytes.Buffer + cmd := exec.Cmd{ + Path: ipt.path, + Args: args, + Stdout: stdout, + Stderr: &stderr, + } + + if err := cmd.Run(); err != nil { + switch e := err.(type) { + case *exec.ExitError: + return &Error{*e, cmd, stderr.String(), nil} + default: + return err + } + } + + return nil +} + +// getIptablesCommand returns the correct command for the given protocol, either "iptables" or "ip6tables". +func getIptablesCommand(proto Protocol) string { + if proto == ProtocolIPv6 { + return "ip6tables" + } else { + return "iptables" + } +} + +// Checks if iptables has the "-C" and "--wait" flag +func getIptablesCommandSupport(v1 int, v2 int, v3 int) (bool, bool, bool, bool) { + return iptablesHasCheckCommand(v1, v2, v3), iptablesHasWaitCommand(v1, v2, v3), iptablesWaitSupportSecond(v1, v2, v3), iptablesHasRandomFully(v1, v2, v3) +} + +// getIptablesVersion returns the first three components of the iptables version +// and the operating mode (e.g. nf_tables or legacy) +// e.g. "iptables v1.3.66" would return (1, 3, 66, legacy, nil) +func extractIptablesVersion(str string) (int, int, int, string, error) { + versionMatcher := regexp.MustCompile(`v([0-9]+)\.([0-9]+)\.([0-9]+)(?:\s+\((\w+))?`) + result := versionMatcher.FindStringSubmatch(str) + if result == nil { + return 0, 0, 0, "", fmt.Errorf("no iptables version found in string: %s", str) + } + + v1, err := strconv.Atoi(result[1]) + if err != nil { + return 0, 0, 0, "", err + } + + v2, err := strconv.Atoi(result[2]) + if err != nil { + return 0, 0, 0, "", err + } + + v3, err := strconv.Atoi(result[3]) + if err != nil { + return 0, 0, 0, "", err + } + + mode := "legacy" + if result[4] != "" { + mode = result[4] + } + return v1, v2, v3, mode, nil +} + +// Runs "iptables --version" to get the version string +func getIptablesVersionString(path string) (string, error) { + cmd := exec.Command(path, "--version") + var out bytes.Buffer + cmd.Stdout = &out + err := cmd.Run() + if err != nil { + return "", err + } + return out.String(), nil +} + +// Checks if an iptables version is after 1.4.11, when --check was added +func iptablesHasCheckCommand(v1 int, v2 int, v3 int) bool { + if v1 > 1 { + return true + } + if v1 == 1 && v2 > 4 { + return true + } + if v1 == 1 && v2 == 4 && v3 >= 11 { + return true + } + return false +} + +// Checks if an iptables version is after 1.4.20, when --wait was added +func iptablesHasWaitCommand(v1 int, v2 int, v3 int) bool { + if v1 > 1 { + return true + } + if v1 == 1 && v2 > 4 { + return true + } + if v1 == 1 && v2 == 4 && v3 >= 20 { + return true + } + return false +} + +//Checks if an iptablse version is after 1.6.0, when --wait support second +func iptablesWaitSupportSecond(v1 int, v2 int, v3 int) bool { + if v1 > 1 { + return true + } + if v1 == 1 && v2 >= 6 { + return true + } + return false +} + +// Checks if an iptables version is after 1.6.2, when --random-fully was added +func iptablesHasRandomFully(v1 int, v2 int, v3 int) bool { + if v1 > 1 { + return true + } + if v1 == 1 && v2 > 6 { + return true + } + if v1 == 1 && v2 == 6 && v3 >= 2 { + return true + } + return false +} + +// Checks if a rule specification exists for a table +func (ipt *IPTables) existsForOldIptables(table, chain string, rulespec []string) (bool, error) { + rs := strings.Join(append([]string{"-A", chain}, rulespec...), " ") + args := []string{"-t", table, "-S"} + var stdout bytes.Buffer + err := ipt.runWithOutput(args, &stdout) + if err != nil { + return false, err + } + return strings.Contains(stdout.String(), rs), nil +} + +// counterRegex is the regex used to detect nftables counter format +var counterRegex = regexp.MustCompile(`^\[([0-9]+):([0-9]+)\] `) + +// filterRuleOutput works around some inconsistencies in output. +// For example, when iptables is in legacy vs. nftables mode, it produces +// different results. +func filterRuleOutput(rule string) string { + out := rule + + // work around an output difference in nftables mode where counters + // are output in iptables-save format, rather than iptables -S format + // The string begins with "[0:0]" + // + // Fixes #49 + if groups := counterRegex.FindStringSubmatch(out); groups != nil { + // drop the brackets + out = out[len(groups[0]):] + out = fmt.Sprintf("%s -c %s %s", out, groups[1], groups[2]) + } + + return out +} diff --git a/vendor/github.com/coreos/go-iptables/iptables/lock.go b/vendor/github.com/coreos/go-iptables/iptables/lock.go new file mode 100644 index 000000000..a88e92b4e --- /dev/null +++ b/vendor/github.com/coreos/go-iptables/iptables/lock.go @@ -0,0 +1,84 @@ +// Copyright 2015 CoreOS, Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package iptables + +import ( + "os" + "sync" + "syscall" +) + +const ( + // In earlier versions of iptables, the xtables lock was implemented + // via a Unix socket, but now flock is used via this lockfile: + // http://git.netfilter.org/iptables/commit/?id=aa562a660d1555b13cffbac1e744033e91f82707 + // Note the LSB-conforming "/run" directory does not exist on old + // distributions, so assume "/var" is symlinked + xtablesLockFilePath = "/var/run/xtables.lock" + + defaultFilePerm = 0600 +) + +type Unlocker interface { + Unlock() error +} + +type nopUnlocker struct{} + +func (_ nopUnlocker) Unlock() error { return nil } + +type fileLock struct { + // mu is used to protect against concurrent invocations from within this process + mu sync.Mutex + fd int +} + +// tryLock takes an exclusive lock on the xtables lock file without blocking. +// This is best-effort only: if the exclusive lock would block (i.e. because +// another process already holds it), no error is returned. Otherwise, any +// error encountered during the locking operation is returned. +// The returned Unlocker should be used to release the lock when the caller is +// done invoking iptables commands. +func (l *fileLock) tryLock() (Unlocker, error) { + l.mu.Lock() + err := syscall.Flock(l.fd, syscall.LOCK_EX|syscall.LOCK_NB) + switch err { + case syscall.EWOULDBLOCK: + l.mu.Unlock() + return nopUnlocker{}, nil + case nil: + return l, nil + default: + l.mu.Unlock() + return nil, err + } +} + +// Unlock closes the underlying file, which implicitly unlocks it as well. It +// also unlocks the associated mutex. +func (l *fileLock) Unlock() error { + defer l.mu.Unlock() + return syscall.Close(l.fd) +} + +// newXtablesFileLock opens a new lock on the xtables lockfile without +// acquiring the lock +func newXtablesFileLock() (*fileLock, error) { + fd, err := syscall.Open(xtablesLockFilePath, os.O_CREATE, defaultFilePerm) + if err != nil { + return nil, err + } + return &fileLock{fd: fd}, nil +} diff --git a/vendor/github.com/cpuguy83/go-md2man/v2/LICENSE.md b/vendor/github.com/cpuguy83/go-md2man/v2/LICENSE.md new file mode 100644 index 000000000..1cade6cef --- /dev/null +++ b/vendor/github.com/cpuguy83/go-md2man/v2/LICENSE.md @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2014 Brian Goff + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/vendor/github.com/cpuguy83/go-md2man/v2/md2man/md2man.go b/vendor/github.com/cpuguy83/go-md2man/v2/md2man/md2man.go new file mode 100644 index 000000000..42bf32aab --- /dev/null +++ b/vendor/github.com/cpuguy83/go-md2man/v2/md2man/md2man.go @@ -0,0 +1,16 @@ +package md2man + +import ( + "github.com/russross/blackfriday/v2" +) + +// Render converts a markdown document into a roff formatted document. +func Render(doc []byte) []byte { + renderer := NewRoffRenderer() + + return blackfriday.Run(doc, + []blackfriday.Option{ + blackfriday.WithRenderer(renderer), + blackfriday.WithExtensions(renderer.GetExtensions()), + }...) +} diff --git a/vendor/github.com/cpuguy83/go-md2man/v2/md2man/roff.go b/vendor/github.com/cpuguy83/go-md2man/v2/md2man/roff.go new file mode 100644 index 000000000..4b19188d9 --- /dev/null +++ b/vendor/github.com/cpuguy83/go-md2man/v2/md2man/roff.go @@ -0,0 +1,348 @@ +package md2man + +import ( + "bytes" + "fmt" + "io" + "os" + "strings" + + "github.com/russross/blackfriday/v2" +) + +// roffRenderer implements the blackfriday.Renderer interface for creating +// roff format (manpages) from markdown text +type roffRenderer struct { + extensions blackfriday.Extensions + listCounters []int + firstHeader bool + firstDD bool + listDepth int +} + +const ( + titleHeader = ".TH " + topLevelHeader = "\n\n.SH " + secondLevelHdr = "\n.SH " + otherHeader = "\n.SS " + crTag = "\n" + emphTag = "\\fI" + emphCloseTag = "\\fP" + strongTag = "\\fB" + strongCloseTag = "\\fP" + breakTag = "\n.br\n" + paraTag = "\n.PP\n" + hruleTag = "\n.ti 0\n\\l'\\n(.lu'\n" + linkTag = "\n\\[la]" + linkCloseTag = "\\[ra]" + codespanTag = "\\fB" + codespanCloseTag = "\\fR" + codeTag = "\n.EX\n" + codeCloseTag = "\n.EE\n" + quoteTag = "\n.PP\n.RS\n" + quoteCloseTag = "\n.RE\n" + listTag = "\n.RS\n" + listCloseTag = "\n.RE\n" + dtTag = "\n.TP\n" + dd2Tag = "\n" + tableStart = "\n.TS\nallbox;\n" + tableEnd = ".TE\n" + tableCellStart = "T{\n" + tableCellEnd = "\nT}\n" +) + +// NewRoffRenderer creates a new blackfriday Renderer for generating roff documents +// from markdown +func NewRoffRenderer() *roffRenderer { // nolint: golint + var extensions blackfriday.Extensions + + extensions |= blackfriday.NoIntraEmphasis + extensions |= blackfriday.Tables + extensions |= blackfriday.FencedCode + extensions |= blackfriday.SpaceHeadings + extensions |= blackfriday.Footnotes + extensions |= blackfriday.Titleblock + extensions |= blackfriday.DefinitionLists + return &roffRenderer{ + extensions: extensions, + } +} + +// GetExtensions returns the list of extensions used by this renderer implementation +func (r *roffRenderer) GetExtensions() blackfriday.Extensions { + return r.extensions +} + +// RenderHeader handles outputting the header at document start +func (r *roffRenderer) RenderHeader(w io.Writer, ast *blackfriday.Node) { + // disable hyphenation + out(w, ".nh\n") +} + +// RenderFooter handles outputting the footer at the document end; the roff +// renderer has no footer information +func (r *roffRenderer) RenderFooter(w io.Writer, ast *blackfriday.Node) { +} + +// RenderNode is called for each node in a markdown document; based on the node +// type the equivalent roff output is sent to the writer +func (r *roffRenderer) RenderNode(w io.Writer, node *blackfriday.Node, entering bool) blackfriday.WalkStatus { + walkAction := blackfriday.GoToNext + + switch node.Type { + case blackfriday.Text: + escapeSpecialChars(w, node.Literal) + case blackfriday.Softbreak: + out(w, crTag) + case blackfriday.Hardbreak: + out(w, breakTag) + case blackfriday.Emph: + if entering { + out(w, emphTag) + } else { + out(w, emphCloseTag) + } + case blackfriday.Strong: + if entering { + out(w, strongTag) + } else { + out(w, strongCloseTag) + } + case blackfriday.Link: + // Don't render the link text for automatic links, because this + // will only duplicate the URL in the roff output. + // See https://daringfireball.net/projects/markdown/syntax#autolink + if !bytes.Equal(node.LinkData.Destination, node.FirstChild.Literal) { + out(w, string(node.FirstChild.Literal)) + } + // Hyphens in a link must be escaped to avoid word-wrap in the rendered man page. + escapedLink := strings.ReplaceAll(string(node.LinkData.Destination), "-", "\\-") + out(w, linkTag+escapedLink+linkCloseTag) + walkAction = blackfriday.SkipChildren + case blackfriday.Image: + // ignore images + walkAction = blackfriday.SkipChildren + case blackfriday.Code: + out(w, codespanTag) + escapeSpecialChars(w, node.Literal) + out(w, codespanCloseTag) + case blackfriday.Document: + break + case blackfriday.Paragraph: + // roff .PP markers break lists + if r.listDepth > 0 { + return blackfriday.GoToNext + } + if entering { + out(w, paraTag) + } else { + out(w, crTag) + } + case blackfriday.BlockQuote: + if entering { + out(w, quoteTag) + } else { + out(w, quoteCloseTag) + } + case blackfriday.Heading: + r.handleHeading(w, node, entering) + case blackfriday.HorizontalRule: + out(w, hruleTag) + case blackfriday.List: + r.handleList(w, node, entering) + case blackfriday.Item: + r.handleItem(w, node, entering) + case blackfriday.CodeBlock: + out(w, codeTag) + escapeSpecialChars(w, node.Literal) + out(w, codeCloseTag) + case blackfriday.Table: + r.handleTable(w, node, entering) + case blackfriday.TableHead: + case blackfriday.TableBody: + case blackfriday.TableRow: + // no action as cell entries do all the nroff formatting + return blackfriday.GoToNext + case blackfriday.TableCell: + r.handleTableCell(w, node, entering) + case blackfriday.HTMLSpan: + // ignore other HTML tags + case blackfriday.HTMLBlock: + if bytes.HasPrefix(node.Literal, []byte("|" + processingInstruction = "[<][?].*?[?][>]" + singleQuotedValue = "'[^']*'" + tagName = "[A-Za-z][A-Za-z0-9-]*" + unquotedValue = "[^\"'=<>`\\x00-\\x20]+" +) + +// HTMLRendererParameters is a collection of supplementary parameters tweaking +// the behavior of various parts of HTML renderer. +type HTMLRendererParameters struct { + // Prepend this text to each relative URL. + AbsolutePrefix string + // Add this text to each footnote anchor, to ensure uniqueness. + FootnoteAnchorPrefix string + // Show this text inside the tag for a footnote return link, if the + // HTML_FOOTNOTE_RETURN_LINKS flag is enabled. If blank, the string + // [return] is used. + FootnoteReturnLinkContents string + // If set, add this text to the front of each Heading ID, to ensure + // uniqueness. + HeadingIDPrefix string + // If set, add this text to the back of each Heading ID, to ensure uniqueness. + HeadingIDSuffix string + // Increase heading levels: if the offset is 1,

becomes

etc. + // Negative offset is also valid. + // Resulting levels are clipped between 1 and 6. + HeadingLevelOffset int + + Title string // Document title (used if CompletePage is set) + CSS string // Optional CSS file URL (used if CompletePage is set) + Icon string // Optional icon file URL (used if CompletePage is set) + + Flags HTMLFlags // Flags allow customizing this renderer's behavior +} + +// HTMLRenderer is a type that implements the Renderer interface for HTML output. +// +// Do not create this directly, instead use the NewHTMLRenderer function. +type HTMLRenderer struct { + HTMLRendererParameters + + closeTag string // how to end singleton tags: either " />" or ">" + + // Track heading IDs to prevent ID collision in a single generation. + headingIDs map[string]int + + lastOutputLen int + disableTags int + + sr *SPRenderer +} + +const ( + xhtmlClose = " />" + htmlClose = ">" +) + +// NewHTMLRenderer creates and configures an HTMLRenderer object, which +// satisfies the Renderer interface. +func NewHTMLRenderer(params HTMLRendererParameters) *HTMLRenderer { + // configure the rendering engine + closeTag := htmlClose + if params.Flags&UseXHTML != 0 { + closeTag = xhtmlClose + } + + if params.FootnoteReturnLinkContents == "" { + // U+FE0E is VARIATION SELECTOR-15. + // It suppresses automatic emoji presentation of the preceding + // U+21A9 LEFTWARDS ARROW WITH HOOK on iOS and iPadOS. + params.FootnoteReturnLinkContents = "↩\ufe0e" + } + + return &HTMLRenderer{ + HTMLRendererParameters: params, + + closeTag: closeTag, + headingIDs: make(map[string]int), + + sr: NewSmartypantsRenderer(params.Flags), + } +} + +func isHTMLTag(tag []byte, tagname string) bool { + found, _ := findHTMLTagPos(tag, tagname) + return found +} + +// Look for a character, but ignore it when it's in any kind of quotes, it +// might be JavaScript +func skipUntilCharIgnoreQuotes(html []byte, start int, char byte) int { + inSingleQuote := false + inDoubleQuote := false + inGraveQuote := false + i := start + for i < len(html) { + switch { + case html[i] == char && !inSingleQuote && !inDoubleQuote && !inGraveQuote: + return i + case html[i] == '\'': + inSingleQuote = !inSingleQuote + case html[i] == '"': + inDoubleQuote = !inDoubleQuote + case html[i] == '`': + inGraveQuote = !inGraveQuote + } + i++ + } + return start +} + +func findHTMLTagPos(tag []byte, tagname string) (bool, int) { + i := 0 + if i < len(tag) && tag[0] != '<' { + return false, -1 + } + i++ + i = skipSpace(tag, i) + + if i < len(tag) && tag[i] == '/' { + i++ + } + + i = skipSpace(tag, i) + j := 0 + for ; i < len(tag); i, j = i+1, j+1 { + if j >= len(tagname) { + break + } + + if strings.ToLower(string(tag[i]))[0] != tagname[j] { + return false, -1 + } + } + + if i == len(tag) { + return false, -1 + } + + rightAngle := skipUntilCharIgnoreQuotes(tag, i, '>') + if rightAngle >= i { + return true, rightAngle + } + + return false, -1 +} + +func skipSpace(tag []byte, i int) int { + for i < len(tag) && isspace(tag[i]) { + i++ + } + return i +} + +func isRelativeLink(link []byte) (yes bool) { + // a tag begin with '#' + if link[0] == '#' { + return true + } + + // link begin with '/' but not '//', the second maybe a protocol relative link + if len(link) >= 2 && link[0] == '/' && link[1] != '/' { + return true + } + + // only the root '/' + if len(link) == 1 && link[0] == '/' { + return true + } + + // current directory : begin with "./" + if bytes.HasPrefix(link, []byte("./")) { + return true + } + + // parent directory : begin with "../" + if bytes.HasPrefix(link, []byte("../")) { + return true + } + + return false +} + +func (r *HTMLRenderer) ensureUniqueHeadingID(id string) string { + for count, found := r.headingIDs[id]; found; count, found = r.headingIDs[id] { + tmp := fmt.Sprintf("%s-%d", id, count+1) + + if _, tmpFound := r.headingIDs[tmp]; !tmpFound { + r.headingIDs[id] = count + 1 + id = tmp + } else { + id = id + "-1" + } + } + + if _, found := r.headingIDs[id]; !found { + r.headingIDs[id] = 0 + } + + return id +} + +func (r *HTMLRenderer) addAbsPrefix(link []byte) []byte { + if r.AbsolutePrefix != "" && isRelativeLink(link) && link[0] != '.' { + newDest := r.AbsolutePrefix + if link[0] != '/' { + newDest += "/" + } + newDest += string(link) + return []byte(newDest) + } + return link +} + +func appendLinkAttrs(attrs []string, flags HTMLFlags, link []byte) []string { + if isRelativeLink(link) { + return attrs + } + val := []string{} + if flags&NofollowLinks != 0 { + val = append(val, "nofollow") + } + if flags&NoreferrerLinks != 0 { + val = append(val, "noreferrer") + } + if flags&NoopenerLinks != 0 { + val = append(val, "noopener") + } + if flags&HrefTargetBlank != 0 { + attrs = append(attrs, "target=\"_blank\"") + } + if len(val) == 0 { + return attrs + } + attr := fmt.Sprintf("rel=%q", strings.Join(val, " ")) + return append(attrs, attr) +} + +func isMailto(link []byte) bool { + return bytes.HasPrefix(link, []byte("mailto:")) +} + +func needSkipLink(flags HTMLFlags, dest []byte) bool { + if flags&SkipLinks != 0 { + return true + } + return flags&Safelink != 0 && !isSafeLink(dest) && !isMailto(dest) +} + +func isSmartypantable(node *Node) bool { + pt := node.Parent.Type + return pt != Link && pt != CodeBlock && pt != Code +} + +func appendLanguageAttr(attrs []string, info []byte) []string { + if len(info) == 0 { + return attrs + } + endOfLang := bytes.IndexAny(info, "\t ") + if endOfLang < 0 { + endOfLang = len(info) + } + return append(attrs, fmt.Sprintf("class=\"language-%s\"", info[:endOfLang])) +} + +func (r *HTMLRenderer) tag(w io.Writer, name []byte, attrs []string) { + w.Write(name) + if len(attrs) > 0 { + w.Write(spaceBytes) + w.Write([]byte(strings.Join(attrs, " "))) + } + w.Write(gtBytes) + r.lastOutputLen = 1 +} + +func footnoteRef(prefix string, node *Node) []byte { + urlFrag := prefix + string(slugify(node.Destination)) + anchor := fmt.Sprintf(`%d`, urlFrag, node.NoteID) + return []byte(fmt.Sprintf(`%s`, urlFrag, anchor)) +} + +func footnoteItem(prefix string, slug []byte) []byte { + return []byte(fmt.Sprintf(`
  • `, prefix, slug)) +} + +func footnoteReturnLink(prefix, returnLink string, slug []byte) []byte { + const format = ` %s` + return []byte(fmt.Sprintf(format, prefix, slug, returnLink)) +} + +func itemOpenCR(node *Node) bool { + if node.Prev == nil { + return false + } + ld := node.Parent.ListData + return !ld.Tight && ld.ListFlags&ListTypeDefinition == 0 +} + +func skipParagraphTags(node *Node) bool { + grandparent := node.Parent.Parent + if grandparent == nil || grandparent.Type != List { + return false + } + tightOrTerm := grandparent.Tight || node.Parent.ListFlags&ListTypeTerm != 0 + return grandparent.Type == List && tightOrTerm +} + +func cellAlignment(align CellAlignFlags) string { + switch align { + case TableAlignmentLeft: + return "left" + case TableAlignmentRight: + return "right" + case TableAlignmentCenter: + return "center" + default: + return "" + } +} + +func (r *HTMLRenderer) out(w io.Writer, text []byte) { + if r.disableTags > 0 { + w.Write(htmlTagRe.ReplaceAll(text, []byte{})) + } else { + w.Write(text) + } + r.lastOutputLen = len(text) +} + +func (r *HTMLRenderer) cr(w io.Writer) { + if r.lastOutputLen > 0 { + r.out(w, nlBytes) + } +} + +var ( + nlBytes = []byte{'\n'} + gtBytes = []byte{'>'} + spaceBytes = []byte{' '} +) + +var ( + brTag = []byte("
    ") + brXHTMLTag = []byte("
    ") + emTag = []byte("") + emCloseTag = []byte("") + strongTag = []byte("") + strongCloseTag = []byte("") + delTag = []byte("") + delCloseTag = []byte("") + ttTag = []byte("") + ttCloseTag = []byte("") + aTag = []byte("") + preTag = []byte("
    ")
+	preCloseTag        = []byte("
    ") + codeTag = []byte("") + codeCloseTag = []byte("") + pTag = []byte("

    ") + pCloseTag = []byte("

    ") + blockquoteTag = []byte("
    ") + blockquoteCloseTag = []byte("
    ") + hrTag = []byte("
    ") + hrXHTMLTag = []byte("
    ") + ulTag = []byte("
      ") + ulCloseTag = []byte("
    ") + olTag = []byte("
      ") + olCloseTag = []byte("
    ") + dlTag = []byte("
    ") + dlCloseTag = []byte("
    ") + liTag = []byte("
  • ") + liCloseTag = []byte("
    • ") + ddTag = []byte("
    ") + ddCloseTag = []byte("
    ") + dtTag = []byte("
    ") + dtCloseTag = []byte("
    ") + tableTag = []byte("") + tableCloseTag = []byte("
    ") + tdTag = []byte("") + thTag = []byte("") + theadTag = []byte("") + theadCloseTag = []byte("") + tbodyTag = []byte("") + tbodyCloseTag = []byte("") + trTag = []byte("") + trCloseTag = []byte("") + h1Tag = []byte("") + h2Tag = []byte("") + h3Tag = []byte("") + h4Tag = []byte("") + h5Tag = []byte("") + h6Tag = []byte("") + + footnotesDivBytes = []byte("\n
    \n\n") + footnotesCloseDivBytes = []byte("\n
    \n") +) + +func headingTagsFromLevel(level int) ([]byte, []byte) { + if level <= 1 { + return h1Tag, h1CloseTag + } + switch level { + case 2: + return h2Tag, h2CloseTag + case 3: + return h3Tag, h3CloseTag + case 4: + return h4Tag, h4CloseTag + case 5: + return h5Tag, h5CloseTag + } + return h6Tag, h6CloseTag +} + +func (r *HTMLRenderer) outHRTag(w io.Writer) { + if r.Flags&UseXHTML == 0 { + r.out(w, hrTag) + } else { + r.out(w, hrXHTMLTag) + } +} + +// RenderNode is a default renderer of a single node of a syntax tree. For +// block nodes it will be called twice: first time with entering=true, second +// time with entering=false, so that it could know when it's working on an open +// tag and when on close. It writes the result to w. +// +// The return value is a way to tell the calling walker to adjust its walk +// pattern: e.g. it can terminate the traversal by returning Terminate. Or it +// can ask the walker to skip a subtree of this node by returning SkipChildren. +// The typical behavior is to return GoToNext, which asks for the usual +// traversal to the next node. +func (r *HTMLRenderer) RenderNode(w io.Writer, node *Node, entering bool) WalkStatus { + attrs := []string{} + switch node.Type { + case Text: + if r.Flags&Smartypants != 0 { + var tmp bytes.Buffer + escapeHTML(&tmp, node.Literal) + r.sr.Process(w, tmp.Bytes()) + } else { + if node.Parent.Type == Link { + escLink(w, node.Literal) + } else { + escapeHTML(w, node.Literal) + } + } + case Softbreak: + r.cr(w) + // TODO: make it configurable via out(renderer.softbreak) + case Hardbreak: + if r.Flags&UseXHTML == 0 { + r.out(w, brTag) + } else { + r.out(w, brXHTMLTag) + } + r.cr(w) + case Emph: + if entering { + r.out(w, emTag) + } else { + r.out(w, emCloseTag) + } + case Strong: + if entering { + r.out(w, strongTag) + } else { + r.out(w, strongCloseTag) + } + case Del: + if entering { + r.out(w, delTag) + } else { + r.out(w, delCloseTag) + } + case HTMLSpan: + if r.Flags&SkipHTML != 0 { + break + } + r.out(w, node.Literal) + case Link: + // mark it but don't link it if it is not a safe link: no smartypants + dest := node.LinkData.Destination + if needSkipLink(r.Flags, dest) { + if entering { + r.out(w, ttTag) + } else { + r.out(w, ttCloseTag) + } + } else { + if entering { + dest = r.addAbsPrefix(dest) + var hrefBuf bytes.Buffer + hrefBuf.WriteString("href=\"") + escLink(&hrefBuf, dest) + hrefBuf.WriteByte('"') + attrs = append(attrs, hrefBuf.String()) + if node.NoteID != 0 { + r.out(w, footnoteRef(r.FootnoteAnchorPrefix, node)) + break + } + attrs = appendLinkAttrs(attrs, r.Flags, dest) + if len(node.LinkData.Title) > 0 { + var titleBuff bytes.Buffer + titleBuff.WriteString("title=\"") + escapeHTML(&titleBuff, node.LinkData.Title) + titleBuff.WriteByte('"') + attrs = append(attrs, titleBuff.String()) + } + r.tag(w, aTag, attrs) + } else { + if node.NoteID != 0 { + break + } + r.out(w, aCloseTag) + } + } + case Image: + if r.Flags&SkipImages != 0 { + return SkipChildren + } + if entering { + dest := node.LinkData.Destination + dest = r.addAbsPrefix(dest) + if r.disableTags == 0 { + //if options.safe && potentiallyUnsafe(dest) { + //out(w, ``) + //} else { + r.out(w, []byte(`<img src=`)) + } + } + case Code: + r.out(w, codeTag) + escapeAllHTML(w, node.Literal) + r.out(w, codeCloseTag) + case Document: + break + case Paragraph: + if skipParagraphTags(node) { + break + } + if entering { + // TODO: untangle this clusterfuck about when the newlines need + // to be added and when not. + if node.Prev != nil { + switch node.Prev.Type { + case HTMLBlock, List, Paragraph, Heading, CodeBlock, BlockQuote, HorizontalRule: + r.cr(w) + } + } + if node.Parent.Type == BlockQuote && node.Prev == nil { + r.cr(w) + } + r.out(w, pTag) + } else { + r.out(w, pCloseTag) + if !(node.Parent.Type == Item && node.Next == nil) { + r.cr(w) + } + } + case BlockQuote: + if entering { + r.cr(w) + r.out(w, blockquoteTag) + } else { + r.out(w, blockquoteCloseTag) + r.cr(w) + } + case HTMLBlock: + if r.Flags&SkipHTML != 0 { + break + } + r.cr(w) + r.out(w, node.Literal) + r.cr(w) + case Heading: + headingLevel := r.HTMLRendererParameters.HeadingLevelOffset + node.Level + openTag, closeTag := headingTagsFromLevel(headingLevel) + if entering { + if node.IsTitleblock { + attrs = append(attrs, `class="title"`) + } + if node.HeadingID != "" { + id := r.ensureUniqueHeadingID(node.HeadingID) + if r.HeadingIDPrefix != "" { + id = r.HeadingIDPrefix + id + } + if r.HeadingIDSuffix != "" { + id = id + r.HeadingIDSuffix + } + attrs = append(attrs, fmt.Sprintf(`id="%s"`, id)) + } + r.cr(w) + r.tag(w, openTag, attrs) + } else { + r.out(w, closeTag) + if !(node.Parent.Type == Item && node.Next == nil) { + r.cr(w) + } + } + case HorizontalRule: + r.cr(w) + r.outHRTag(w) + r.cr(w) + case List: + openTag := ulTag + closeTag := ulCloseTag + if node.ListFlags&ListTypeOrdered != 0 { + openTag = olTag + closeTag = olCloseTag + } + if node.ListFlags&ListTypeDefinition != 0 { + openTag = dlTag + closeTag = dlCloseTag + } + if entering { + if node.IsFootnotesList { + r.out(w, footnotesDivBytes) + r.outHRTag(w) + r.cr(w) + } + r.cr(w) + if node.Parent.Type == Item && node.Parent.Parent.Tight { + r.cr(w) + } + r.tag(w, openTag[:len(openTag)-1], attrs) + r.cr(w) + } else { + r.out(w, closeTag) + //cr(w) + //if node.parent.Type != Item { + // cr(w) + //} + if node.Parent.Type == Item && node.Next != nil { + r.cr(w) + } + if node.Parent.Type == Document || node.Parent.Type == BlockQuote { + r.cr(w) + } + if node.IsFootnotesList { + r.out(w, footnotesCloseDivBytes) + } + } + case Item: + openTag := liTag + closeTag := liCloseTag + if node.ListFlags&ListTypeDefinition != 0 { + openTag = ddTag + closeTag = ddCloseTag + } + if node.ListFlags&ListTypeTerm != 0 { + openTag = dtTag + closeTag = dtCloseTag + } + if entering { + if itemOpenCR(node) { + r.cr(w) + } + if node.ListData.RefLink != nil { + slug := slugify(node.ListData.RefLink) + r.out(w, footnoteItem(r.FootnoteAnchorPrefix, slug)) + break + } + r.out(w, openTag) + } else { + if node.ListData.RefLink != nil { + slug := slugify(node.ListData.RefLink) + if r.Flags&FootnoteReturnLinks != 0 { + r.out(w, footnoteReturnLink(r.FootnoteAnchorPrefix, r.FootnoteReturnLinkContents, slug)) + } + } + r.out(w, closeTag) + r.cr(w) + } + case CodeBlock: + attrs = appendLanguageAttr(attrs, node.Info) + r.cr(w) + r.out(w, preTag) + r.tag(w, codeTag[:len(codeTag)-1], attrs) + escapeAllHTML(w, node.Literal) + r.out(w, codeCloseTag) + r.out(w, preCloseTag) + if node.Parent.Type != Item { + r.cr(w) + } + case Table: + if entering { + r.cr(w) + r.out(w, tableTag) + } else { + r.out(w, tableCloseTag) + r.cr(w) + } + case TableCell: + openTag := tdTag + closeTag := tdCloseTag + if node.IsHeader { + openTag = thTag + closeTag = thCloseTag + } + if entering { + align := cellAlignment(node.Align) + if align != "" { + attrs = append(attrs, fmt.Sprintf(`align="%s"`, align)) + } + if node.Prev == nil { + r.cr(w) + } + r.tag(w, openTag, attrs) + } else { + r.out(w, closeTag) + r.cr(w) + } + case TableHead: + if entering { + r.cr(w) + r.out(w, theadTag) + } else { + r.out(w, theadCloseTag) + r.cr(w) + } + case TableBody: + if entering { + r.cr(w) + r.out(w, tbodyTag) + // XXX: this is to adhere to a rather silly test. Should fix test. + if node.FirstChild == nil { + r.cr(w) + } + } else { + r.out(w, tbodyCloseTag) + r.cr(w) + } + case TableRow: + if entering { + r.cr(w) + r.out(w, trTag) + } else { + r.out(w, trCloseTag) + r.cr(w) + } + default: + panic("Unknown node type " + node.Type.String()) + } + return GoToNext +} + +// RenderHeader writes HTML document preamble and TOC if requested. +func (r *HTMLRenderer) RenderHeader(w io.Writer, ast *Node) { + r.writeDocumentHeader(w) + if r.Flags&TOC != 0 { + r.writeTOC(w, ast) + } +} + +// RenderFooter writes HTML document footer. +func (r *HTMLRenderer) RenderFooter(w io.Writer, ast *Node) { + if r.Flags&CompletePage == 0 { + return + } + io.WriteString(w, "\n\n\n") +} + +func (r *HTMLRenderer) writeDocumentHeader(w io.Writer) { + if r.Flags&CompletePage == 0 { + return + } + ending := "" + if r.Flags&UseXHTML != 0 { + io.WriteString(w, "\n") + io.WriteString(w, "\n") + ending = " /" + } else { + io.WriteString(w, "\n") + io.WriteString(w, "\n") + } + io.WriteString(w, "\n") + io.WriteString(w, " ") + if r.Flags&Smartypants != 0 { + r.sr.Process(w, []byte(r.Title)) + } else { + escapeHTML(w, []byte(r.Title)) + } + io.WriteString(w, "\n") + io.WriteString(w, " \n") + io.WriteString(w, " \n") + if r.CSS != "" { + io.WriteString(w, " \n") + } + if r.Icon != "" { + io.WriteString(w, " \n") + } + io.WriteString(w, "\n") + io.WriteString(w, "\n\n") +} + +func (r *HTMLRenderer) writeTOC(w io.Writer, ast *Node) { + buf := bytes.Buffer{} + + inHeading := false + tocLevel := 0 + headingCount := 0 + + ast.Walk(func(node *Node, entering bool) WalkStatus { + if node.Type == Heading && !node.HeadingData.IsTitleblock { + inHeading = entering + if entering { + node.HeadingID = fmt.Sprintf("toc_%d", headingCount) + if node.Level == tocLevel { + buf.WriteString("\n\n
  • ") + } else if node.Level < tocLevel { + for node.Level < tocLevel { + tocLevel-- + buf.WriteString("
    • \n") + } + buf.WriteString("\n\n
  • ") + } else { + for node.Level > tocLevel { + tocLevel++ + buf.WriteString("\n") + } + + if buf.Len() > 0 { + io.WriteString(w, "\n") + } + r.lastOutputLen = buf.Len() +} diff --git a/vendor/github.com/russross/blackfriday/v2/inline.go b/vendor/github.com/russross/blackfriday/v2/inline.go new file mode 100644 index 000000000..d45bd9417 --- /dev/null +++ b/vendor/github.com/russross/blackfriday/v2/inline.go @@ -0,0 +1,1228 @@ +// +// Blackfriday Markdown Processor +// Available at http://github.com/russross/blackfriday +// +// Copyright © 2011 Russ Ross . +// Distributed under the Simplified BSD License. +// See README.md for details. +// + +// +// Functions to parse inline elements. +// + +package blackfriday + +import ( + "bytes" + "regexp" + "strconv" +) + +var ( + urlRe = `((https?|ftp):\/\/|\/)[-A-Za-z0-9+&@#\/%?=~_|!:,.;\(\)]+` + anchorRe = regexp.MustCompile(`^(]+")?\s?>` + urlRe + `<\/a>)`) + + // https://www.w3.org/TR/html5/syntax.html#character-references + // highest unicode code point in 17 planes (2^20): 1,114,112d = + // 7 dec digits or 6 hex digits + // named entity references can be 2-31 characters with stuff like < + // at one end and ∳ at the other. There + // are also sometimes numbers at the end, although this isn't inherent + // in the specification; there are never numbers anywhere else in + // current character references, though; see ¾ and ▒, etc. + // https://www.w3.org/TR/html5/syntax.html#named-character-references + // + // entity := "&" (named group | number ref) ";" + // named group := [a-zA-Z]{2,31}[0-9]{0,2} + // number ref := "#" (dec ref | hex ref) + // dec ref := [0-9]{1,7} + // hex ref := ("x" | "X") [0-9a-fA-F]{1,6} + htmlEntityRe = regexp.MustCompile(`&([a-zA-Z]{2,31}[0-9]{0,2}|#([0-9]{1,7}|[xX][0-9a-fA-F]{1,6}));`) +) + +// Functions to parse text within a block +// Each function returns the number of chars taken care of +// data is the complete block being rendered +// offset is the number of valid chars before the current cursor + +func (p *Markdown) inline(currBlock *Node, data []byte) { + // handlers might call us recursively: enforce a maximum depth + if p.nesting >= p.maxNesting || len(data) == 0 { + return + } + p.nesting++ + beg, end := 0, 0 + for end < len(data) { + handler := p.inlineCallback[data[end]] + if handler != nil { + if consumed, node := handler(p, data, end); consumed == 0 { + // No action from the callback. + end++ + } else { + // Copy inactive chars into the output. + currBlock.AppendChild(text(data[beg:end])) + if node != nil { + currBlock.AppendChild(node) + } + // Skip past whatever the callback used. + beg = end + consumed + end = beg + } + } else { + end++ + } + } + if beg < len(data) { + if data[end-1] == '\n' { + end-- + } + currBlock.AppendChild(text(data[beg:end])) + } + p.nesting-- +} + +// single and double emphasis parsing +func emphasis(p *Markdown, data []byte, offset int) (int, *Node) { + data = data[offset:] + c := data[0] + + if len(data) > 2 && data[1] != c { + // whitespace cannot follow an opening emphasis; + // strikethrough only takes two characters '~~' + if c == '~' || isspace(data[1]) { + return 0, nil + } + ret, node := helperEmphasis(p, data[1:], c) + if ret == 0 { + return 0, nil + } + + return ret + 1, node + } + + if len(data) > 3 && data[1] == c && data[2] != c { + if isspace(data[2]) { + return 0, nil + } + ret, node := helperDoubleEmphasis(p, data[2:], c) + if ret == 0 { + return 0, nil + } + + return ret + 2, node + } + + if len(data) > 4 && data[1] == c && data[2] == c && data[3] != c { + if c == '~' || isspace(data[3]) { + return 0, nil + } + ret, node := helperTripleEmphasis(p, data, 3, c) + if ret == 0 { + return 0, nil + } + + return ret + 3, node + } + + return 0, nil +} + +func codeSpan(p *Markdown, data []byte, offset int) (int, *Node) { + data = data[offset:] + + nb := 0 + + // count the number of backticks in the delimiter + for nb < len(data) && data[nb] == '`' { + nb++ + } + + // find the next delimiter + i, end := 0, 0 + for end = nb; end < len(data) && i < nb; end++ { + if data[end] == '`' { + i++ + } else { + i = 0 + } + } + + // no matching delimiter? + if i < nb && end >= len(data) { + return 0, nil + } + + // trim outside whitespace + fBegin := nb + for fBegin < end && data[fBegin] == ' ' { + fBegin++ + } + + fEnd := end - nb + for fEnd > fBegin && data[fEnd-1] == ' ' { + fEnd-- + } + + // render the code span + if fBegin != fEnd { + code := NewNode(Code) + code.Literal = data[fBegin:fEnd] + return end, code + } + + return end, nil +} + +// newline preceded by two spaces becomes
    +func maybeLineBreak(p *Markdown, data []byte, offset int) (int, *Node) { + origOffset := offset + for offset < len(data) && data[offset] == ' ' { + offset++ + } + + if offset < len(data) && data[offset] == '\n' { + if offset-origOffset >= 2 { + return offset - origOffset + 1, NewNode(Hardbreak) + } + return offset - origOffset, nil + } + return 0, nil +} + +// newline without two spaces works when HardLineBreak is enabled +func lineBreak(p *Markdown, data []byte, offset int) (int, *Node) { + if p.extensions&HardLineBreak != 0 { + return 1, NewNode(Hardbreak) + } + return 0, nil +} + +type linkType int + +const ( + linkNormal linkType = iota + linkImg + linkDeferredFootnote + linkInlineFootnote +) + +func isReferenceStyleLink(data []byte, pos int, t linkType) bool { + if t == linkDeferredFootnote { + return false + } + return pos < len(data)-1 && data[pos] == '[' && data[pos+1] != '^' +} + +func maybeImage(p *Markdown, data []byte, offset int) (int, *Node) { + if offset < len(data)-1 && data[offset+1] == '[' { + return link(p, data, offset) + } + return 0, nil +} + +func maybeInlineFootnote(p *Markdown, data []byte, offset int) (int, *Node) { + if offset < len(data)-1 && data[offset+1] == '[' { + return link(p, data, offset) + } + return 0, nil +} + +// '[': parse a link or an image or a footnote +func link(p *Markdown, data []byte, offset int) (int, *Node) { + // no links allowed inside regular links, footnote, and deferred footnotes + if p.insideLink && (offset > 0 && data[offset-1] == '[' || len(data)-1 > offset && data[offset+1] == '^') { + return 0, nil + } + + var t linkType + switch { + // special case: ![^text] == deferred footnote (that follows something with + // an exclamation point) + case p.extensions&Footnotes != 0 && len(data)-1 > offset && data[offset+1] == '^': + t = linkDeferredFootnote + // ![alt] == image + case offset >= 0 && data[offset] == '!': + t = linkImg + offset++ + // ^[text] == inline footnote + // [^refId] == deferred footnote + case p.extensions&Footnotes != 0: + if offset >= 0 && data[offset] == '^' { + t = linkInlineFootnote + offset++ + } else if len(data)-1 > offset && data[offset+1] == '^' { + t = linkDeferredFootnote + } + // [text] == regular link + default: + t = linkNormal + } + + data = data[offset:] + + var ( + i = 1 + noteID int + title, link, altContent []byte + textHasNl = false + ) + + if t == linkDeferredFootnote { + i++ + } + + // look for the matching closing bracket + for level := 1; level > 0 && i < len(data); i++ { + switch { + case data[i] == '\n': + textHasNl = true + + case isBackslashEscaped(data, i): + continue + + case data[i] == '[': + level++ + + case data[i] == ']': + level-- + if level <= 0 { + i-- // compensate for extra i++ in for loop + } + } + } + + if i >= len(data) { + return 0, nil + } + + txtE := i + i++ + var footnoteNode *Node + + // skip any amount of whitespace or newline + // (this is much more lax than original markdown syntax) + for i < len(data) && isspace(data[i]) { + i++ + } + + // inline style link + switch { + case i < len(data) && data[i] == '(': + // skip initial whitespace + i++ + + for i < len(data) && isspace(data[i]) { + i++ + } + + linkB := i + + // look for link end: ' " ) + findlinkend: + for i < len(data) { + switch { + case data[i] == '\\': + i += 2 + + case data[i] == ')' || data[i] == '\'' || data[i] == '"': + break findlinkend + + default: + i++ + } + } + + if i >= len(data) { + return 0, nil + } + linkE := i + + // look for title end if present + titleB, titleE := 0, 0 + if data[i] == '\'' || data[i] == '"' { + i++ + titleB = i + + findtitleend: + for i < len(data) { + switch { + case data[i] == '\\': + i += 2 + + case data[i] == ')': + break findtitleend + + default: + i++ + } + } + + if i >= len(data) { + return 0, nil + } + + // skip whitespace after title + titleE = i - 1 + for titleE > titleB && isspace(data[titleE]) { + titleE-- + } + + // check for closing quote presence + if data[titleE] != '\'' && data[titleE] != '"' { + titleB, titleE = 0, 0 + linkE = i + } + } + + // remove whitespace at the end of the link + for linkE > linkB && isspace(data[linkE-1]) { + linkE-- + } + + // remove optional angle brackets around the link + if data[linkB] == '<' { + linkB++ + } + if data[linkE-1] == '>' { + linkE-- + } + + // build escaped link and title + if linkE > linkB { + link = data[linkB:linkE] + } + + if titleE > titleB { + title = data[titleB:titleE] + } + + i++ + + // reference style link + case isReferenceStyleLink(data, i, t): + var id []byte + altContentConsidered := false + + // look for the id + i++ + linkB := i + for i < len(data) && data[i] != ']' { + i++ + } + if i >= len(data) { + return 0, nil + } + linkE := i + + // find the reference + if linkB == linkE { + if textHasNl { + var b bytes.Buffer + + for j := 1; j < txtE; j++ { + switch { + case data[j] != '\n': + b.WriteByte(data[j]) + case data[j-1] != ' ': + b.WriteByte(' ') + } + } + + id = b.Bytes() + } else { + id = data[1:txtE] + altContentConsidered = true + } + } else { + id = data[linkB:linkE] + } + + // find the reference with matching id + lr, ok := p.getRef(string(id)) + if !ok { + return 0, nil + } + + // keep link and title from reference + link = lr.link + title = lr.title + if altContentConsidered { + altContent = lr.text + } + i++ + + // shortcut reference style link or reference or inline footnote + default: + var id []byte + + // craft the id + if textHasNl { + var b bytes.Buffer + + for j := 1; j < txtE; j++ { + switch { + case data[j] != '\n': + b.WriteByte(data[j]) + case data[j-1] != ' ': + b.WriteByte(' ') + } + } + + id = b.Bytes() + } else { + if t == linkDeferredFootnote { + id = data[2:txtE] // get rid of the ^ + } else { + id = data[1:txtE] + } + } + + footnoteNode = NewNode(Item) + if t == linkInlineFootnote { + // create a new reference + noteID = len(p.notes) + 1 + + var fragment []byte + if len(id) > 0 { + if len(id) < 16 { + fragment = make([]byte, len(id)) + } else { + fragment = make([]byte, 16) + } + copy(fragment, slugify(id)) + } else { + fragment = append([]byte("footnote-"), []byte(strconv.Itoa(noteID))...) + } + + ref := &reference{ + noteID: noteID, + hasBlock: false, + link: fragment, + title: id, + footnote: footnoteNode, + } + + p.notes = append(p.notes, ref) + + link = ref.link + title = ref.title + } else { + // find the reference with matching id + lr, ok := p.getRef(string(id)) + if !ok { + return 0, nil + } + + if t == linkDeferredFootnote { + lr.noteID = len(p.notes) + 1 + lr.footnote = footnoteNode + p.notes = append(p.notes, lr) + } + + // keep link and title from reference + link = lr.link + // if inline footnote, title == footnote contents + title = lr.title + noteID = lr.noteID + } + + // rewind the whitespace + i = txtE + 1 + } + + var uLink []byte + if t == linkNormal || t == linkImg { + if len(link) > 0 { + var uLinkBuf bytes.Buffer + unescapeText(&uLinkBuf, link) + uLink = uLinkBuf.Bytes() + } + + // links need something to click on and somewhere to go + if len(uLink) == 0 || (t == linkNormal && txtE <= 1) { + return 0, nil + } + } + + // call the relevant rendering function + var linkNode *Node + switch t { + case linkNormal: + linkNode = NewNode(Link) + linkNode.Destination = normalizeURI(uLink) + linkNode.Title = title + if len(altContent) > 0 { + linkNode.AppendChild(text(altContent)) + } else { + // links cannot contain other links, so turn off link parsing + // temporarily and recurse + insideLink := p.insideLink + p.insideLink = true + p.inline(linkNode, data[1:txtE]) + p.insideLink = insideLink + } + + case linkImg: + linkNode = NewNode(Image) + linkNode.Destination = uLink + linkNode.Title = title + linkNode.AppendChild(text(data[1:txtE])) + i++ + + case linkInlineFootnote, linkDeferredFootnote: + linkNode = NewNode(Link) + linkNode.Destination = link + linkNode.Title = title + linkNode.NoteID = noteID + linkNode.Footnote = footnoteNode + if t == linkInlineFootnote { + i++ + } + + default: + return 0, nil + } + + return i, linkNode +} + +func (p *Markdown) inlineHTMLComment(data []byte) int { + if len(data) < 5 { + return 0 + } + if data[0] != '<' || data[1] != '!' || data[2] != '-' || data[3] != '-' { + return 0 + } + i := 5 + // scan for an end-of-comment marker, across lines if necessary + for i < len(data) && !(data[i-2] == '-' && data[i-1] == '-' && data[i] == '>') { + i++ + } + // no end-of-comment marker + if i >= len(data) { + return 0 + } + return i + 1 +} + +func stripMailto(link []byte) []byte { + if bytes.HasPrefix(link, []byte("mailto://")) { + return link[9:] + } else if bytes.HasPrefix(link, []byte("mailto:")) { + return link[7:] + } else { + return link + } +} + +// autolinkType specifies a kind of autolink that gets detected. +type autolinkType int + +// These are the possible flag values for the autolink renderer. +const ( + notAutolink autolinkType = iota + normalAutolink + emailAutolink +) + +// '<' when tags or autolinks are allowed +func leftAngle(p *Markdown, data []byte, offset int) (int, *Node) { + data = data[offset:] + altype, end := tagLength(data) + if size := p.inlineHTMLComment(data); size > 0 { + end = size + } + if end > 2 { + if altype != notAutolink { + var uLink bytes.Buffer + unescapeText(&uLink, data[1:end+1-2]) + if uLink.Len() > 0 { + link := uLink.Bytes() + node := NewNode(Link) + node.Destination = link + if altype == emailAutolink { + node.Destination = append([]byte("mailto:"), link...) + } + node.AppendChild(text(stripMailto(link))) + return end, node + } + } else { + htmlTag := NewNode(HTMLSpan) + htmlTag.Literal = data[:end] + return end, htmlTag + } + } + + return end, nil +} + +// '\\' backslash escape +var escapeChars = []byte("\\`*_{}[]()#+-.!:|&<>~") + +func escape(p *Markdown, data []byte, offset int) (int, *Node) { + data = data[offset:] + + if len(data) > 1 { + if p.extensions&BackslashLineBreak != 0 && data[1] == '\n' { + return 2, NewNode(Hardbreak) + } + if bytes.IndexByte(escapeChars, data[1]) < 0 { + return 0, nil + } + + return 2, text(data[1:2]) + } + + return 2, nil +} + +func unescapeText(ob *bytes.Buffer, src []byte) { + i := 0 + for i < len(src) { + org := i + for i < len(src) && src[i] != '\\' { + i++ + } + + if i > org { + ob.Write(src[org:i]) + } + + if i+1 >= len(src) { + break + } + + ob.WriteByte(src[i+1]) + i += 2 + } +} + +// '&' escaped when it doesn't belong to an entity +// valid entities are assumed to be anything matching &#?[A-Za-z0-9]+; +func entity(p *Markdown, data []byte, offset int) (int, *Node) { + data = data[offset:] + + end := 1 + + if end < len(data) && data[end] == '#' { + end++ + } + + for end < len(data) && isalnum(data[end]) { + end++ + } + + if end < len(data) && data[end] == ';' { + end++ // real entity + } else { + return 0, nil // lone '&' + } + + ent := data[:end] + // undo & escaping or it will be converted to &amp; by another + // escaper in the renderer + if bytes.Equal(ent, []byte("&")) { + ent = []byte{'&'} + } + + return end, text(ent) +} + +func linkEndsWithEntity(data []byte, linkEnd int) bool { + entityRanges := htmlEntityRe.FindAllIndex(data[:linkEnd], -1) + return entityRanges != nil && entityRanges[len(entityRanges)-1][1] == linkEnd +} + +// hasPrefixCaseInsensitive is a custom implementation of +// strings.HasPrefix(strings.ToLower(s), prefix) +// we rolled our own because ToLower pulls in a huge machinery of lowercasing +// anything from Unicode and that's very slow. Since this func will only be +// used on ASCII protocol prefixes, we can take shortcuts. +func hasPrefixCaseInsensitive(s, prefix []byte) bool { + if len(s) < len(prefix) { + return false + } + delta := byte('a' - 'A') + for i, b := range prefix { + if b != s[i] && b != s[i]+delta { + return false + } + } + return true +} + +var protocolPrefixes = [][]byte{ + []byte("http://"), + []byte("https://"), + []byte("ftp://"), + []byte("file://"), + []byte("mailto:"), +} + +const shortestPrefix = 6 // len("ftp://"), the shortest of the above + +func maybeAutoLink(p *Markdown, data []byte, offset int) (int, *Node) { + // quick check to rule out most false hits + if p.insideLink || len(data) < offset+shortestPrefix { + return 0, nil + } + for _, prefix := range protocolPrefixes { + endOfHead := offset + 8 // 8 is the len() of the longest prefix + if endOfHead > len(data) { + endOfHead = len(data) + } + if hasPrefixCaseInsensitive(data[offset:endOfHead], prefix) { + return autoLink(p, data, offset) + } + } + return 0, nil +} + +func autoLink(p *Markdown, data []byte, offset int) (int, *Node) { + // Now a more expensive check to see if we're not inside an anchor element + anchorStart := offset + offsetFromAnchor := 0 + for anchorStart > 0 && data[anchorStart] != '<' { + anchorStart-- + offsetFromAnchor++ + } + + anchorStr := anchorRe.Find(data[anchorStart:]) + if anchorStr != nil { + anchorClose := NewNode(HTMLSpan) + anchorClose.Literal = anchorStr[offsetFromAnchor:] + return len(anchorStr) - offsetFromAnchor, anchorClose + } + + // scan backward for a word boundary + rewind := 0 + for offset-rewind > 0 && rewind <= 7 && isletter(data[offset-rewind-1]) { + rewind++ + } + if rewind > 6 { // longest supported protocol is "mailto" which has 6 letters + return 0, nil + } + + origData := data + data = data[offset-rewind:] + + if !isSafeLink(data) { + return 0, nil + } + + linkEnd := 0 + for linkEnd < len(data) && !isEndOfLink(data[linkEnd]) { + linkEnd++ + } + + // Skip punctuation at the end of the link + if (data[linkEnd-1] == '.' || data[linkEnd-1] == ',') && data[linkEnd-2] != '\\' { + linkEnd-- + } + + // But don't skip semicolon if it's a part of escaped entity: + if data[linkEnd-1] == ';' && data[linkEnd-2] != '\\' && !linkEndsWithEntity(data, linkEnd) { + linkEnd-- + } + + // See if the link finishes with a punctuation sign that can be closed. + var copen byte + switch data[linkEnd-1] { + case '"': + copen = '"' + case '\'': + copen = '\'' + case ')': + copen = '(' + case ']': + copen = '[' + case '}': + copen = '{' + default: + copen = 0 + } + + if copen != 0 { + bufEnd := offset - rewind + linkEnd - 2 + + openDelim := 1 + + /* Try to close the final punctuation sign in this same line; + * if we managed to close it outside of the URL, that means that it's + * not part of the URL. If it closes inside the URL, that means it + * is part of the URL. + * + * Examples: + * + * foo http://www.pokemon.com/Pikachu_(Electric) bar + * => http://www.pokemon.com/Pikachu_(Electric) + * + * foo (http://www.pokemon.com/Pikachu_(Electric)) bar + * => http://www.pokemon.com/Pikachu_(Electric) + * + * foo http://www.pokemon.com/Pikachu_(Electric)) bar + * => http://www.pokemon.com/Pikachu_(Electric)) + * + * (foo http://www.pokemon.com/Pikachu_(Electric)) bar + * => foo http://www.pokemon.com/Pikachu_(Electric) + */ + + for bufEnd >= 0 && origData[bufEnd] != '\n' && openDelim != 0 { + if origData[bufEnd] == data[linkEnd-1] { + openDelim++ + } + + if origData[bufEnd] == copen { + openDelim-- + } + + bufEnd-- + } + + if openDelim == 0 { + linkEnd-- + } + } + + var uLink bytes.Buffer + unescapeText(&uLink, data[:linkEnd]) + + if uLink.Len() > 0 { + node := NewNode(Link) + node.Destination = uLink.Bytes() + node.AppendChild(text(uLink.Bytes())) + return linkEnd, node + } + + return linkEnd, nil +} + +func isEndOfLink(char byte) bool { + return isspace(char) || char == '<' +} + +var validUris = [][]byte{[]byte("http://"), []byte("https://"), []byte("ftp://"), []byte("mailto://")} +var validPaths = [][]byte{[]byte("/"), []byte("./"), []byte("../")} + +func isSafeLink(link []byte) bool { + for _, path := range validPaths { + if len(link) >= len(path) && bytes.Equal(link[:len(path)], path) { + if len(link) == len(path) { + return true + } else if isalnum(link[len(path)]) { + return true + } + } + } + + for _, prefix := range validUris { + // TODO: handle unicode here + // case-insensitive prefix test + if len(link) > len(prefix) && bytes.Equal(bytes.ToLower(link[:len(prefix)]), prefix) && isalnum(link[len(prefix)]) { + return true + } + } + + return false +} + +// return the length of the given tag, or 0 is it's not valid +func tagLength(data []byte) (autolink autolinkType, end int) { + var i, j int + + // a valid tag can't be shorter than 3 chars + if len(data) < 3 { + return notAutolink, 0 + } + + // begins with a '<' optionally followed by '/', followed by letter or number + if data[0] != '<' { + return notAutolink, 0 + } + if data[1] == '/' { + i = 2 + } else { + i = 1 + } + + if !isalnum(data[i]) { + return notAutolink, 0 + } + + // scheme test + autolink = notAutolink + + // try to find the beginning of an URI + for i < len(data) && (isalnum(data[i]) || data[i] == '.' || data[i] == '+' || data[i] == '-') { + i++ + } + + if i > 1 && i < len(data) && data[i] == '@' { + if j = isMailtoAutoLink(data[i:]); j != 0 { + return emailAutolink, i + j + } + } + + if i > 2 && i < len(data) && data[i] == ':' { + autolink = normalAutolink + i++ + } + + // complete autolink test: no whitespace or ' or " + switch { + case i >= len(data): + autolink = notAutolink + case autolink != notAutolink: + j = i + + for i < len(data) { + if data[i] == '\\' { + i += 2 + } else if data[i] == '>' || data[i] == '\'' || data[i] == '"' || isspace(data[i]) { + break + } else { + i++ + } + + } + + if i >= len(data) { + return autolink, 0 + } + if i > j && data[i] == '>' { + return autolink, i + 1 + } + + // one of the forbidden chars has been found + autolink = notAutolink + } + i += bytes.IndexByte(data[i:], '>') + if i < 0 { + return autolink, 0 + } + return autolink, i + 1 +} + +// look for the address part of a mail autolink and '>' +// this is less strict than the original markdown e-mail address matching +func isMailtoAutoLink(data []byte) int { + nb := 0 + + // address is assumed to be: [-@._a-zA-Z0-9]+ with exactly one '@' + for i := 0; i < len(data); i++ { + if isalnum(data[i]) { + continue + } + + switch data[i] { + case '@': + nb++ + + case '-', '.', '_': + break + + case '>': + if nb == 1 { + return i + 1 + } + return 0 + default: + return 0 + } + } + + return 0 +} + +// look for the next emph char, skipping other constructs +func helperFindEmphChar(data []byte, c byte) int { + i := 0 + + for i < len(data) { + for i < len(data) && data[i] != c && data[i] != '`' && data[i] != '[' { + i++ + } + if i >= len(data) { + return 0 + } + // do not count escaped chars + if i != 0 && data[i-1] == '\\' { + i++ + continue + } + if data[i] == c { + return i + } + + if data[i] == '`' { + // skip a code span + tmpI := 0 + i++ + for i < len(data) && data[i] != '`' { + if tmpI == 0 && data[i] == c { + tmpI = i + } + i++ + } + if i >= len(data) { + return tmpI + } + i++ + } else if data[i] == '[' { + // skip a link + tmpI := 0 + i++ + for i < len(data) && data[i] != ']' { + if tmpI == 0 && data[i] == c { + tmpI = i + } + i++ + } + i++ + for i < len(data) && (data[i] == ' ' || data[i] == '\n') { + i++ + } + if i >= len(data) { + return tmpI + } + if data[i] != '[' && data[i] != '(' { // not a link + if tmpI > 0 { + return tmpI + } + continue + } + cc := data[i] + i++ + for i < len(data) && data[i] != cc { + if tmpI == 0 && data[i] == c { + return i + } + i++ + } + if i >= len(data) { + return tmpI + } + i++ + } + } + return 0 +} + +func helperEmphasis(p *Markdown, data []byte, c byte) (int, *Node) { + i := 0 + + // skip one symbol if coming from emph3 + if len(data) > 1 && data[0] == c && data[1] == c { + i = 1 + } + + for i < len(data) { + length := helperFindEmphChar(data[i:], c) + if length == 0 { + return 0, nil + } + i += length + if i >= len(data) { + return 0, nil + } + + if i+1 < len(data) && data[i+1] == c { + i++ + continue + } + + if data[i] == c && !isspace(data[i-1]) { + + if p.extensions&NoIntraEmphasis != 0 { + if !(i+1 == len(data) || isspace(data[i+1]) || ispunct(data[i+1])) { + continue + } + } + + emph := NewNode(Emph) + p.inline(emph, data[:i]) + return i + 1, emph + } + } + + return 0, nil +} + +func helperDoubleEmphasis(p *Markdown, data []byte, c byte) (int, *Node) { + i := 0 + + for i < len(data) { + length := helperFindEmphChar(data[i:], c) + if length == 0 { + return 0, nil + } + i += length + + if i+1 < len(data) && data[i] == c && data[i+1] == c && i > 0 && !isspace(data[i-1]) { + nodeType := Strong + if c == '~' { + nodeType = Del + } + node := NewNode(nodeType) + p.inline(node, data[:i]) + return i + 2, node + } + i++ + } + return 0, nil +} + +func helperTripleEmphasis(p *Markdown, data []byte, offset int, c byte) (int, *Node) { + i := 0 + origData := data + data = data[offset:] + + for i < len(data) { + length := helperFindEmphChar(data[i:], c) + if length == 0 { + return 0, nil + } + i += length + + // skip whitespace preceded symbols + if data[i] != c || isspace(data[i-1]) { + continue + } + + switch { + case i+2 < len(data) && data[i+1] == c && data[i+2] == c: + // triple symbol found + strong := NewNode(Strong) + em := NewNode(Emph) + strong.AppendChild(em) + p.inline(em, data[:i]) + return i + 3, strong + case (i+1 < len(data) && data[i+1] == c): + // double symbol found, hand over to emph1 + length, node := helperEmphasis(p, origData[offset-2:], c) + if length == 0 { + return 0, nil + } + return length - 2, node + default: + // single symbol found, hand over to emph2 + length, node := helperDoubleEmphasis(p, origData[offset-1:], c) + if length == 0 { + return 0, nil + } + return length - 1, node + } + } + return 0, nil +} + +func text(s []byte) *Node { + node := NewNode(Text) + node.Literal = s + return node +} + +func normalizeURI(s []byte) []byte { + return s // TODO: implement +} diff --git a/vendor/github.com/russross/blackfriday/v2/markdown.go b/vendor/github.com/russross/blackfriday/v2/markdown.go new file mode 100644 index 000000000..58d2e4538 --- /dev/null +++ b/vendor/github.com/russross/blackfriday/v2/markdown.go @@ -0,0 +1,950 @@ +// Blackfriday Markdown Processor +// Available at http://github.com/russross/blackfriday +// +// Copyright © 2011 Russ Ross . +// Distributed under the Simplified BSD License. +// See README.md for details. + +package blackfriday + +import ( + "bytes" + "fmt" + "io" + "strings" + "unicode/utf8" +) + +// +// Markdown parsing and processing +// + +// Version string of the package. Appears in the rendered document when +// CompletePage flag is on. +const Version = "2.0" + +// Extensions is a bitwise or'ed collection of enabled Blackfriday's +// extensions. +type Extensions int + +// These are the supported markdown parsing extensions. +// OR these values together to select multiple extensions. +const ( + NoExtensions Extensions = 0 + NoIntraEmphasis Extensions = 1 << iota // Ignore emphasis markers inside words + Tables // Render tables + FencedCode // Render fenced code blocks + Autolink // Detect embedded URLs that are not explicitly marked + Strikethrough // Strikethrough text using ~~test~~ + LaxHTMLBlocks // Loosen up HTML block parsing rules + SpaceHeadings // Be strict about prefix heading rules + HardLineBreak // Translate newlines into line breaks + TabSizeEight // Expand tabs to eight spaces instead of four + Footnotes // Pandoc-style footnotes + NoEmptyLineBeforeBlock // No need to insert an empty line to start a (code, quote, ordered list, unordered list) block + HeadingIDs // specify heading IDs with {#id} + Titleblock // Titleblock ala pandoc + AutoHeadingIDs // Create the heading ID from the text + BackslashLineBreak // Translate trailing backslashes into line breaks + DefinitionLists // Render definition lists + + CommonHTMLFlags HTMLFlags = UseXHTML | Smartypants | + SmartypantsFractions | SmartypantsDashes | SmartypantsLatexDashes + + CommonExtensions Extensions = NoIntraEmphasis | Tables | FencedCode | + Autolink | Strikethrough | SpaceHeadings | HeadingIDs | + BackslashLineBreak | DefinitionLists +) + +// ListType contains bitwise or'ed flags for list and list item objects. +type ListType int + +// These are the possible flag values for the ListItem renderer. +// Multiple flag values may be ORed together. +// These are mostly of interest if you are writing a new output format. +const ( + ListTypeOrdered ListType = 1 << iota + ListTypeDefinition + ListTypeTerm + + ListItemContainsBlock + ListItemBeginningOfList // TODO: figure out if this is of any use now + ListItemEndOfList +) + +// CellAlignFlags holds a type of alignment in a table cell. +type CellAlignFlags int + +// These are the possible flag values for the table cell renderer. +// Only a single one of these values will be used; they are not ORed together. +// These are mostly of interest if you are writing a new output format. +const ( + TableAlignmentLeft CellAlignFlags = 1 << iota + TableAlignmentRight + TableAlignmentCenter = (TableAlignmentLeft | TableAlignmentRight) +) + +// The size of a tab stop. +const ( + TabSizeDefault = 4 + TabSizeDouble = 8 +) + +// blockTags is a set of tags that are recognized as HTML block tags. +// Any of these can be included in markdown text without special escaping. +var blockTags = map[string]struct{}{ + "blockquote": {}, + "del": {}, + "div": {}, + "dl": {}, + "fieldset": {}, + "form": {}, + "h1": {}, + "h2": {}, + "h3": {}, + "h4": {}, + "h5": {}, + "h6": {}, + "iframe": {}, + "ins": {}, + "math": {}, + "noscript": {}, + "ol": {}, + "pre": {}, + "p": {}, + "script": {}, + "style": {}, + "table": {}, + "ul": {}, + + // HTML5 + "address": {}, + "article": {}, + "aside": {}, + "canvas": {}, + "figcaption": {}, + "figure": {}, + "footer": {}, + "header": {}, + "hgroup": {}, + "main": {}, + "nav": {}, + "output": {}, + "progress": {}, + "section": {}, + "video": {}, +} + +// Renderer is the rendering interface. This is mostly of interest if you are +// implementing a new rendering format. +// +// Only an HTML implementation is provided in this repository, see the README +// for external implementations. +type Renderer interface { + // RenderNode is the main rendering method. It will be called once for + // every leaf node and twice for every non-leaf node (first with + // entering=true, then with entering=false). The method should write its + // rendition of the node to the supplied writer w. + RenderNode(w io.Writer, node *Node, entering bool) WalkStatus + + // RenderHeader is a method that allows the renderer to produce some + // content preceding the main body of the output document. The header is + // understood in the broad sense here. For example, the default HTML + // renderer will write not only the HTML document preamble, but also the + // table of contents if it was requested. + // + // The method will be passed an entire document tree, in case a particular + // implementation needs to inspect it to produce output. + // + // The output should be written to the supplied writer w. If your + // implementation has no header to write, supply an empty implementation. + RenderHeader(w io.Writer, ast *Node) + + // RenderFooter is a symmetric counterpart of RenderHeader. + RenderFooter(w io.Writer, ast *Node) +} + +// Callback functions for inline parsing. One such function is defined +// for each character that triggers a response when parsing inline data. +type inlineParser func(p *Markdown, data []byte, offset int) (int, *Node) + +// Markdown is a type that holds extensions and the runtime state used by +// Parse, and the renderer. You can not use it directly, construct it with New. +type Markdown struct { + renderer Renderer + referenceOverride ReferenceOverrideFunc + refs map[string]*reference + inlineCallback [256]inlineParser + extensions Extensions + nesting int + maxNesting int + insideLink bool + + // Footnotes need to be ordered as well as available to quickly check for + // presence. If a ref is also a footnote, it's stored both in refs and here + // in notes. Slice is nil if footnotes not enabled. + notes []*reference + + doc *Node + tip *Node // = doc + oldTip *Node + lastMatchedContainer *Node // = doc + allClosed bool +} + +func (p *Markdown) getRef(refid string) (ref *reference, found bool) { + if p.referenceOverride != nil { + r, overridden := p.referenceOverride(refid) + if overridden { + if r == nil { + return nil, false + } + return &reference{ + link: []byte(r.Link), + title: []byte(r.Title), + noteID: 0, + hasBlock: false, + text: []byte(r.Text)}, true + } + } + // refs are case insensitive + ref, found = p.refs[strings.ToLower(refid)] + return ref, found +} + +func (p *Markdown) finalize(block *Node) { + above := block.Parent + block.open = false + p.tip = above +} + +func (p *Markdown) addChild(node NodeType, offset uint32) *Node { + return p.addExistingChild(NewNode(node), offset) +} + +func (p *Markdown) addExistingChild(node *Node, offset uint32) *Node { + for !p.tip.canContain(node.Type) { + p.finalize(p.tip) + } + p.tip.AppendChild(node) + p.tip = node + return node +} + +func (p *Markdown) closeUnmatchedBlocks() { + if !p.allClosed { + for p.oldTip != p.lastMatchedContainer { + parent := p.oldTip.Parent + p.finalize(p.oldTip) + p.oldTip = parent + } + p.allClosed = true + } +} + +// +// +// Public interface +// +// + +// Reference represents the details of a link. +// See the documentation in Options for more details on use-case. +type Reference struct { + // Link is usually the URL the reference points to. + Link string + // Title is the alternate text describing the link in more detail. + Title string + // Text is the optional text to override the ref with if the syntax used was + // [refid][] + Text string +} + +// ReferenceOverrideFunc is expected to be called with a reference string and +// return either a valid Reference type that the reference string maps to or +// nil. If overridden is false, the default reference logic will be executed. +// See the documentation in Options for more details on use-case. +type ReferenceOverrideFunc func(reference string) (ref *Reference, overridden bool) + +// New constructs a Markdown processor. You can use the same With* functions as +// for Run() to customize parser's behavior and the renderer. +func New(opts ...Option) *Markdown { + var p Markdown + for _, opt := range opts { + opt(&p) + } + p.refs = make(map[string]*reference) + p.maxNesting = 16 + p.insideLink = false + docNode := NewNode(Document) + p.doc = docNode + p.tip = docNode + p.oldTip = docNode + p.lastMatchedContainer = docNode + p.allClosed = true + // register inline parsers + p.inlineCallback[' '] = maybeLineBreak + p.inlineCallback['*'] = emphasis + p.inlineCallback['_'] = emphasis + if p.extensions&Strikethrough != 0 { + p.inlineCallback['~'] = emphasis + } + p.inlineCallback['`'] = codeSpan + p.inlineCallback['\n'] = lineBreak + p.inlineCallback['['] = link + p.inlineCallback['<'] = leftAngle + p.inlineCallback['\\'] = escape + p.inlineCallback['&'] = entity + p.inlineCallback['!'] = maybeImage + p.inlineCallback['^'] = maybeInlineFootnote + if p.extensions&Autolink != 0 { + p.inlineCallback['h'] = maybeAutoLink + p.inlineCallback['m'] = maybeAutoLink + p.inlineCallback['f'] = maybeAutoLink + p.inlineCallback['H'] = maybeAutoLink + p.inlineCallback['M'] = maybeAutoLink + p.inlineCallback['F'] = maybeAutoLink + } + if p.extensions&Footnotes != 0 { + p.notes = make([]*reference, 0) + } + return &p +} + +// Option customizes the Markdown processor's default behavior. +type Option func(*Markdown) + +// WithRenderer allows you to override the default renderer. +func WithRenderer(r Renderer) Option { + return func(p *Markdown) { + p.renderer = r + } +} + +// WithExtensions allows you to pick some of the many extensions provided by +// Blackfriday. You can bitwise OR them. +func WithExtensions(e Extensions) Option { + return func(p *Markdown) { + p.extensions = e + } +} + +// WithNoExtensions turns off all extensions and custom behavior. +func WithNoExtensions() Option { + return func(p *Markdown) { + p.extensions = NoExtensions + p.renderer = NewHTMLRenderer(HTMLRendererParameters{ + Flags: HTMLFlagsNone, + }) + } +} + +// WithRefOverride sets an optional function callback that is called every +// time a reference is resolved. +// +// In Markdown, the link reference syntax can be made to resolve a link to +// a reference instead of an inline URL, in one of the following ways: +// +// * [link text][refid] +// * [refid][] +// +// Usually, the refid is defined at the bottom of the Markdown document. If +// this override function is provided, the refid is passed to the override +// function first, before consulting the defined refids at the bottom. If +// the override function indicates an override did not occur, the refids at +// the bottom will be used to fill in the link details. +func WithRefOverride(o ReferenceOverrideFunc) Option { + return func(p *Markdown) { + p.referenceOverride = o + } +} + +// Run is the main entry point to Blackfriday. It parses and renders a +// block of markdown-encoded text. +// +// The simplest invocation of Run takes one argument, input: +// output := Run(input) +// This will parse the input with CommonExtensions enabled and render it with +// the default HTMLRenderer (with CommonHTMLFlags). +// +// Variadic arguments opts can customize the default behavior. Since Markdown +// type does not contain exported fields, you can not use it directly. Instead, +// use the With* functions. For example, this will call the most basic +// functionality, with no extensions: +// output := Run(input, WithNoExtensions()) +// +// You can use any number of With* arguments, even contradicting ones. They +// will be applied in order of appearance and the latter will override the +// former: +// output := Run(input, WithNoExtensions(), WithExtensions(exts), +// WithRenderer(yourRenderer)) +func Run(input []byte, opts ...Option) []byte { + r := NewHTMLRenderer(HTMLRendererParameters{ + Flags: CommonHTMLFlags, + }) + optList := []Option{WithRenderer(r), WithExtensions(CommonExtensions)} + optList = append(optList, opts...) + parser := New(optList...) + ast := parser.Parse(input) + var buf bytes.Buffer + parser.renderer.RenderHeader(&buf, ast) + ast.Walk(func(node *Node, entering bool) WalkStatus { + return parser.renderer.RenderNode(&buf, node, entering) + }) + parser.renderer.RenderFooter(&buf, ast) + return buf.Bytes() +} + +// Parse is an entry point to the parsing part of Blackfriday. It takes an +// input markdown document and produces a syntax tree for its contents. This +// tree can then be rendered with a default or custom renderer, or +// analyzed/transformed by the caller to whatever non-standard needs they have. +// The return value is the root node of the syntax tree. +func (p *Markdown) Parse(input []byte) *Node { + p.block(input) + // Walk the tree and finish up some of unfinished blocks + for p.tip != nil { + p.finalize(p.tip) + } + // Walk the tree again and process inline markdown in each block + p.doc.Walk(func(node *Node, entering bool) WalkStatus { + if node.Type == Paragraph || node.Type == Heading || node.Type == TableCell { + p.inline(node, node.content) + node.content = nil + } + return GoToNext + }) + p.parseRefsToAST() + return p.doc +} + +func (p *Markdown) parseRefsToAST() { + if p.extensions&Footnotes == 0 || len(p.notes) == 0 { + return + } + p.tip = p.doc + block := p.addBlock(List, nil) + block.IsFootnotesList = true + block.ListFlags = ListTypeOrdered + flags := ListItemBeginningOfList + // Note: this loop is intentionally explicit, not range-form. This is + // because the body of the loop will append nested footnotes to p.notes and + // we need to process those late additions. Range form would only walk over + // the fixed initial set. + for i := 0; i < len(p.notes); i++ { + ref := p.notes[i] + p.addExistingChild(ref.footnote, 0) + block := ref.footnote + block.ListFlags = flags | ListTypeOrdered + block.RefLink = ref.link + if ref.hasBlock { + flags |= ListItemContainsBlock + p.block(ref.title) + } else { + p.inline(block, ref.title) + } + flags &^= ListItemBeginningOfList | ListItemContainsBlock + } + above := block.Parent + finalizeList(block) + p.tip = above + block.Walk(func(node *Node, entering bool) WalkStatus { + if node.Type == Paragraph || node.Type == Heading { + p.inline(node, node.content) + node.content = nil + } + return GoToNext + }) +} + +// +// Link references +// +// This section implements support for references that (usually) appear +// as footnotes in a document, and can be referenced anywhere in the document. +// The basic format is: +// +// [1]: http://www.google.com/ "Google" +// [2]: http://www.github.com/ "Github" +// +// Anywhere in the document, the reference can be linked by referring to its +// label, i.e., 1 and 2 in this example, as in: +// +// This library is hosted on [Github][2], a git hosting site. +// +// Actual footnotes as specified in Pandoc and supported by some other Markdown +// libraries such as php-markdown are also taken care of. They look like this: +// +// This sentence needs a bit of further explanation.[^note] +// +// [^note]: This is the explanation. +// +// Footnotes should be placed at the end of the document in an ordered list. +// Finally, there are inline footnotes such as: +// +// Inline footnotes^[Also supported.] provide a quick inline explanation, +// but are rendered at the bottom of the document. +// + +// reference holds all information necessary for a reference-style links or +// footnotes. +// +// Consider this markdown with reference-style links: +// +// [link][ref] +// +// [ref]: /url/ "tooltip title" +// +// It will be ultimately converted to this HTML: +// +//

    link

    +// +// And a reference structure will be populated as follows: +// +// p.refs["ref"] = &reference{ +// link: "/url/", +// title: "tooltip title", +// } +// +// Alternatively, reference can contain information about a footnote. Consider +// this markdown: +// +// Text needing a footnote.[^a] +// +// [^a]: This is the note +// +// A reference structure will be populated as follows: +// +// p.refs["a"] = &reference{ +// link: "a", +// title: "This is the note", +// noteID: , +// } +// +// TODO: As you can see, it begs for splitting into two dedicated structures +// for refs and for footnotes. +type reference struct { + link []byte + title []byte + noteID int // 0 if not a footnote ref + hasBlock bool + footnote *Node // a link to the Item node within a list of footnotes + + text []byte // only gets populated by refOverride feature with Reference.Text +} + +func (r *reference) String() string { + return fmt.Sprintf("{link: %q, title: %q, text: %q, noteID: %d, hasBlock: %v}", + r.link, r.title, r.text, r.noteID, r.hasBlock) +} + +// Check whether or not data starts with a reference link. +// If so, it is parsed and stored in the list of references +// (in the render struct). +// Returns the number of bytes to skip to move past it, +// or zero if the first line is not a reference. +func isReference(p *Markdown, data []byte, tabSize int) int { + // up to 3 optional leading spaces + if len(data) < 4 { + return 0 + } + i := 0 + for i < 3 && data[i] == ' ' { + i++ + } + + noteID := 0 + + // id part: anything but a newline between brackets + if data[i] != '[' { + return 0 + } + i++ + if p.extensions&Footnotes != 0 { + if i < len(data) && data[i] == '^' { + // we can set it to anything here because the proper noteIds will + // be assigned later during the second pass. It just has to be != 0 + noteID = 1 + i++ + } + } + idOffset := i + for i < len(data) && data[i] != '\n' && data[i] != '\r' && data[i] != ']' { + i++ + } + if i >= len(data) || data[i] != ']' { + return 0 + } + idEnd := i + // footnotes can have empty ID, like this: [^], but a reference can not be + // empty like this: []. Break early if it's not a footnote and there's no ID + if noteID == 0 && idOffset == idEnd { + return 0 + } + // spacer: colon (space | tab)* newline? (space | tab)* + i++ + if i >= len(data) || data[i] != ':' { + return 0 + } + i++ + for i < len(data) && (data[i] == ' ' || data[i] == '\t') { + i++ + } + if i < len(data) && (data[i] == '\n' || data[i] == '\r') { + i++ + if i < len(data) && data[i] == '\n' && data[i-1] == '\r' { + i++ + } + } + for i < len(data) && (data[i] == ' ' || data[i] == '\t') { + i++ + } + if i >= len(data) { + return 0 + } + + var ( + linkOffset, linkEnd int + titleOffset, titleEnd int + lineEnd int + raw []byte + hasBlock bool + ) + + if p.extensions&Footnotes != 0 && noteID != 0 { + linkOffset, linkEnd, raw, hasBlock = scanFootnote(p, data, i, tabSize) + lineEnd = linkEnd + } else { + linkOffset, linkEnd, titleOffset, titleEnd, lineEnd = scanLinkRef(p, data, i) + } + if lineEnd == 0 { + return 0 + } + + // a valid ref has been found + + ref := &reference{ + noteID: noteID, + hasBlock: hasBlock, + } + + if noteID > 0 { + // reusing the link field for the id since footnotes don't have links + ref.link = data[idOffset:idEnd] + // if footnote, it's not really a title, it's the contained text + ref.title = raw + } else { + ref.link = data[linkOffset:linkEnd] + ref.title = data[titleOffset:titleEnd] + } + + // id matches are case-insensitive + id := string(bytes.ToLower(data[idOffset:idEnd])) + + p.refs[id] = ref + + return lineEnd +} + +func scanLinkRef(p *Markdown, data []byte, i int) (linkOffset, linkEnd, titleOffset, titleEnd, lineEnd int) { + // link: whitespace-free sequence, optionally between angle brackets + if data[i] == '<' { + i++ + } + linkOffset = i + for i < len(data) && data[i] != ' ' && data[i] != '\t' && data[i] != '\n' && data[i] != '\r' { + i++ + } + linkEnd = i + if data[linkOffset] == '<' && data[linkEnd-1] == '>' { + linkOffset++ + linkEnd-- + } + + // optional spacer: (space | tab)* (newline | '\'' | '"' | '(' ) + for i < len(data) && (data[i] == ' ' || data[i] == '\t') { + i++ + } + if i < len(data) && data[i] != '\n' && data[i] != '\r' && data[i] != '\'' && data[i] != '"' && data[i] != '(' { + return + } + + // compute end-of-line + if i >= len(data) || data[i] == '\r' || data[i] == '\n' { + lineEnd = i + } + if i+1 < len(data) && data[i] == '\r' && data[i+1] == '\n' { + lineEnd++ + } + + // optional (space|tab)* spacer after a newline + if lineEnd > 0 { + i = lineEnd + 1 + for i < len(data) && (data[i] == ' ' || data[i] == '\t') { + i++ + } + } + + // optional title: any non-newline sequence enclosed in '"() alone on its line + if i+1 < len(data) && (data[i] == '\'' || data[i] == '"' || data[i] == '(') { + i++ + titleOffset = i + + // look for EOL + for i < len(data) && data[i] != '\n' && data[i] != '\r' { + i++ + } + if i+1 < len(data) && data[i] == '\n' && data[i+1] == '\r' { + titleEnd = i + 1 + } else { + titleEnd = i + } + + // step back + i-- + for i > titleOffset && (data[i] == ' ' || data[i] == '\t') { + i-- + } + if i > titleOffset && (data[i] == '\'' || data[i] == '"' || data[i] == ')') { + lineEnd = titleEnd + titleEnd = i + } + } + + return +} + +// The first bit of this logic is the same as Parser.listItem, but the rest +// is much simpler. This function simply finds the entire block and shifts it +// over by one tab if it is indeed a block (just returns the line if it's not). +// blockEnd is the end of the section in the input buffer, and contents is the +// extracted text that was shifted over one tab. It will need to be rendered at +// the end of the document. +func scanFootnote(p *Markdown, data []byte, i, indentSize int) (blockStart, blockEnd int, contents []byte, hasBlock bool) { + if i == 0 || len(data) == 0 { + return + } + + // skip leading whitespace on first line + for i < len(data) && data[i] == ' ' { + i++ + } + + blockStart = i + + // find the end of the line + blockEnd = i + for i < len(data) && data[i-1] != '\n' { + i++ + } + + // get working buffer + var raw bytes.Buffer + + // put the first line into the working buffer + raw.Write(data[blockEnd:i]) + blockEnd = i + + // process the following lines + containsBlankLine := false + +gatherLines: + for blockEnd < len(data) { + i++ + + // find the end of this line + for i < len(data) && data[i-1] != '\n' { + i++ + } + + // if it is an empty line, guess that it is part of this item + // and move on to the next line + if p.isEmpty(data[blockEnd:i]) > 0 { + containsBlankLine = true + blockEnd = i + continue + } + + n := 0 + if n = isIndented(data[blockEnd:i], indentSize); n == 0 { + // this is the end of the block. + // we don't want to include this last line in the index. + break gatherLines + } + + // if there were blank lines before this one, insert a new one now + if containsBlankLine { + raw.WriteByte('\n') + containsBlankLine = false + } + + // get rid of that first tab, write to buffer + raw.Write(data[blockEnd+n : i]) + hasBlock = true + + blockEnd = i + } + + if data[blockEnd-1] != '\n' { + raw.WriteByte('\n') + } + + contents = raw.Bytes() + + return +} + +// +// +// Miscellaneous helper functions +// +// + +// Test if a character is a punctuation symbol. +// Taken from a private function in regexp in the stdlib. +func ispunct(c byte) bool { + for _, r := range []byte("!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~") { + if c == r { + return true + } + } + return false +} + +// Test if a character is a whitespace character. +func isspace(c byte) bool { + return ishorizontalspace(c) || isverticalspace(c) +} + +// Test if a character is a horizontal whitespace character. +func ishorizontalspace(c byte) bool { + return c == ' ' || c == '\t' +} + +// Test if a character is a vertical character. +func isverticalspace(c byte) bool { + return c == '\n' || c == '\r' || c == '\f' || c == '\v' +} + +// Test if a character is letter. +func isletter(c byte) bool { + return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') +} + +// Test if a character is a letter or a digit. +// TODO: check when this is looking for ASCII alnum and when it should use unicode +func isalnum(c byte) bool { + return (c >= '0' && c <= '9') || isletter(c) +} + +// Replace tab characters with spaces, aligning to the next TAB_SIZE column. +// always ends output with a newline +func expandTabs(out *bytes.Buffer, line []byte, tabSize int) { + // first, check for common cases: no tabs, or only tabs at beginning of line + i, prefix := 0, 0 + slowcase := false + for i = 0; i < len(line); i++ { + if line[i] == '\t' { + if prefix == i { + prefix++ + } else { + slowcase = true + break + } + } + } + + // no need to decode runes if all tabs are at the beginning of the line + if !slowcase { + for i = 0; i < prefix*tabSize; i++ { + out.WriteByte(' ') + } + out.Write(line[prefix:]) + return + } + + // the slow case: we need to count runes to figure out how + // many spaces to insert for each tab + column := 0 + i = 0 + for i < len(line) { + start := i + for i < len(line) && line[i] != '\t' { + _, size := utf8.DecodeRune(line[i:]) + i += size + column++ + } + + if i > start { + out.Write(line[start:i]) + } + + if i >= len(line) { + break + } + + for { + out.WriteByte(' ') + column++ + if column%tabSize == 0 { + break + } + } + + i++ + } +} + +// Find if a line counts as indented or not. +// Returns number of characters the indent is (0 = not indented). +func isIndented(data []byte, indentSize int) int { + if len(data) == 0 { + return 0 + } + if data[0] == '\t' { + return 1 + } + if len(data) < indentSize { + return 0 + } + for i := 0; i < indentSize; i++ { + if data[i] != ' ' { + return 0 + } + } + return indentSize +} + +// Create a url-safe slug for fragments +func slugify(in []byte) []byte { + if len(in) == 0 { + return in + } + out := make([]byte, 0, len(in)) + sym := false + + for _, ch := range in { + if isalnum(ch) { + sym = false + out = append(out, ch) + } else if sym { + continue + } else { + out = append(out, '-') + sym = true + } + } + var a, b int + var ch byte + for a, ch = range out { + if ch != '-' { + break + } + } + for b = len(out) - 1; b > 0; b-- { + if out[b] != '-' { + break + } + } + return out[a : b+1] +} diff --git a/vendor/github.com/russross/blackfriday/v2/node.go b/vendor/github.com/russross/blackfriday/v2/node.go new file mode 100644 index 000000000..04e6050ce --- /dev/null +++ b/vendor/github.com/russross/blackfriday/v2/node.go @@ -0,0 +1,360 @@ +package blackfriday + +import ( + "bytes" + "fmt" +) + +// NodeType specifies a type of a single node of a syntax tree. Usually one +// node (and its type) corresponds to a single markdown feature, e.g. emphasis +// or code block. +type NodeType int + +// Constants for identifying different types of nodes. See NodeType. +const ( + Document NodeType = iota + BlockQuote + List + Item + Paragraph + Heading + HorizontalRule + Emph + Strong + Del + Link + Image + Text + HTMLBlock + CodeBlock + Softbreak + Hardbreak + Code + HTMLSpan + Table + TableCell + TableHead + TableBody + TableRow +) + +var nodeTypeNames = []string{ + Document: "Document", + BlockQuote: "BlockQuote", + List: "List", + Item: "Item", + Paragraph: "Paragraph", + Heading: "Heading", + HorizontalRule: "HorizontalRule", + Emph: "Emph", + Strong: "Strong", + Del: "Del", + Link: "Link", + Image: "Image", + Text: "Text", + HTMLBlock: "HTMLBlock", + CodeBlock: "CodeBlock", + Softbreak: "Softbreak", + Hardbreak: "Hardbreak", + Code: "Code", + HTMLSpan: "HTMLSpan", + Table: "Table", + TableCell: "TableCell", + TableHead: "TableHead", + TableBody: "TableBody", + TableRow: "TableRow", +} + +func (t NodeType) String() string { + return nodeTypeNames[t] +} + +// ListData contains fields relevant to a List and Item node type. +type ListData struct { + ListFlags ListType + Tight bool // Skip

    s around list item data if true + BulletChar byte // '*', '+' or '-' in bullet lists + Delimiter byte // '.' or ')' after the number in ordered lists + RefLink []byte // If not nil, turns this list item into a footnote item and triggers different rendering + IsFootnotesList bool // This is a list of footnotes +} + +// LinkData contains fields relevant to a Link node type. +type LinkData struct { + Destination []byte // Destination is what goes into a href + Title []byte // Title is the tooltip thing that goes in a title attribute + NoteID int // NoteID contains a serial number of a footnote, zero if it's not a footnote + Footnote *Node // If it's a footnote, this is a direct link to the footnote Node. Otherwise nil. +} + +// CodeBlockData contains fields relevant to a CodeBlock node type. +type CodeBlockData struct { + IsFenced bool // Specifies whether it's a fenced code block or an indented one + Info []byte // This holds the info string + FenceChar byte + FenceLength int + FenceOffset int +} + +// TableCellData contains fields relevant to a TableCell node type. +type TableCellData struct { + IsHeader bool // This tells if it's under the header row + Align CellAlignFlags // This holds the value for align attribute +} + +// HeadingData contains fields relevant to a Heading node type. +type HeadingData struct { + Level int // This holds the heading level number + HeadingID string // This might hold heading ID, if present + IsTitleblock bool // Specifies whether it's a title block +} + +// Node is a single element in the abstract syntax tree of the parsed document. +// It holds connections to the structurally neighboring nodes and, for certain +// types of nodes, additional information that might be needed when rendering. +type Node struct { + Type NodeType // Determines the type of the node + Parent *Node // Points to the parent + FirstChild *Node // Points to the first child, if any + LastChild *Node // Points to the last child, if any + Prev *Node // Previous sibling; nil if it's the first child + Next *Node // Next sibling; nil if it's the last child + + Literal []byte // Text contents of the leaf nodes + + HeadingData // Populated if Type is Heading + ListData // Populated if Type is List + CodeBlockData // Populated if Type is CodeBlock + LinkData // Populated if Type is Link + TableCellData // Populated if Type is TableCell + + content []byte // Markdown content of the block nodes + open bool // Specifies an open block node that has not been finished to process yet +} + +// NewNode allocates a node of a specified type. +func NewNode(typ NodeType) *Node { + return &Node{ + Type: typ, + open: true, + } +} + +func (n *Node) String() string { + ellipsis := "" + snippet := n.Literal + if len(snippet) > 16 { + snippet = snippet[:16] + ellipsis = "..." + } + return fmt.Sprintf("%s: '%s%s'", n.Type, snippet, ellipsis) +} + +// Unlink removes node 'n' from the tree. +// It panics if the node is nil. +func (n *Node) Unlink() { + if n.Prev != nil { + n.Prev.Next = n.Next + } else if n.Parent != nil { + n.Parent.FirstChild = n.Next + } + if n.Next != nil { + n.Next.Prev = n.Prev + } else if n.Parent != nil { + n.Parent.LastChild = n.Prev + } + n.Parent = nil + n.Next = nil + n.Prev = nil +} + +// AppendChild adds a node 'child' as a child of 'n'. +// It panics if either node is nil. +func (n *Node) AppendChild(child *Node) { + child.Unlink() + child.Parent = n + if n.LastChild != nil { + n.LastChild.Next = child + child.Prev = n.LastChild + n.LastChild = child + } else { + n.FirstChild = child + n.LastChild = child + } +} + +// InsertBefore inserts 'sibling' immediately before 'n'. +// It panics if either node is nil. +func (n *Node) InsertBefore(sibling *Node) { + sibling.Unlink() + sibling.Prev = n.Prev + if sibling.Prev != nil { + sibling.Prev.Next = sibling + } + sibling.Next = n + n.Prev = sibling + sibling.Parent = n.Parent + if sibling.Prev == nil { + sibling.Parent.FirstChild = sibling + } +} + +// IsContainer returns true if 'n' can contain children. +func (n *Node) IsContainer() bool { + switch n.Type { + case Document: + fallthrough + case BlockQuote: + fallthrough + case List: + fallthrough + case Item: + fallthrough + case Paragraph: + fallthrough + case Heading: + fallthrough + case Emph: + fallthrough + case Strong: + fallthrough + case Del: + fallthrough + case Link: + fallthrough + case Image: + fallthrough + case Table: + fallthrough + case TableHead: + fallthrough + case TableBody: + fallthrough + case TableRow: + fallthrough + case TableCell: + return true + default: + return false + } +} + +// IsLeaf returns true if 'n' is a leaf node. +func (n *Node) IsLeaf() bool { + return !n.IsContainer() +} + +func (n *Node) canContain(t NodeType) bool { + if n.Type == List { + return t == Item + } + if n.Type == Document || n.Type == BlockQuote || n.Type == Item { + return t != Item + } + if n.Type == Table { + return t == TableHead || t == TableBody + } + if n.Type == TableHead || n.Type == TableBody { + return t == TableRow + } + if n.Type == TableRow { + return t == TableCell + } + return false +} + +// WalkStatus allows NodeVisitor to have some control over the tree traversal. +// It is returned from NodeVisitor and different values allow Node.Walk to +// decide which node to go to next. +type WalkStatus int + +const ( + // GoToNext is the default traversal of every node. + GoToNext WalkStatus = iota + // SkipChildren tells walker to skip all children of current node. + SkipChildren + // Terminate tells walker to terminate the traversal. + Terminate +) + +// NodeVisitor is a callback to be called when traversing the syntax tree. +// Called twice for every node: once with entering=true when the branch is +// first visited, then with entering=false after all the children are done. +type NodeVisitor func(node *Node, entering bool) WalkStatus + +// Walk is a convenience method that instantiates a walker and starts a +// traversal of subtree rooted at n. +func (n *Node) Walk(visitor NodeVisitor) { + w := newNodeWalker(n) + for w.current != nil { + status := visitor(w.current, w.entering) + switch status { + case GoToNext: + w.next() + case SkipChildren: + w.entering = false + w.next() + case Terminate: + return + } + } +} + +type nodeWalker struct { + current *Node + root *Node + entering bool +} + +func newNodeWalker(root *Node) *nodeWalker { + return &nodeWalker{ + current: root, + root: root, + entering: true, + } +} + +func (nw *nodeWalker) next() { + if (!nw.current.IsContainer() || !nw.entering) && nw.current == nw.root { + nw.current = nil + return + } + if nw.entering && nw.current.IsContainer() { + if nw.current.FirstChild != nil { + nw.current = nw.current.FirstChild + nw.entering = true + } else { + nw.entering = false + } + } else if nw.current.Next == nil { + nw.current = nw.current.Parent + nw.entering = false + } else { + nw.current = nw.current.Next + nw.entering = true + } +} + +func dump(ast *Node) { + fmt.Println(dumpString(ast)) +} + +func dumpR(ast *Node, depth int) string { + if ast == nil { + return "" + } + indent := bytes.Repeat([]byte("\t"), depth) + content := ast.Literal + if content == nil { + content = ast.content + } + result := fmt.Sprintf("%s%s(%q)\n", indent, ast.Type, content) + for n := ast.FirstChild; n != nil; n = n.Next { + result += dumpR(n, depth+1) + } + return result +} + +func dumpString(ast *Node) string { + return dumpR(ast, 0) +} diff --git a/vendor/github.com/russross/blackfriday/v2/smartypants.go b/vendor/github.com/russross/blackfriday/v2/smartypants.go new file mode 100644 index 000000000..3a220e942 --- /dev/null +++ b/vendor/github.com/russross/blackfriday/v2/smartypants.go @@ -0,0 +1,457 @@ +// +// Blackfriday Markdown Processor +// Available at http://github.com/russross/blackfriday +// +// Copyright © 2011 Russ Ross . +// Distributed under the Simplified BSD License. +// See README.md for details. +// + +// +// +// SmartyPants rendering +// +// + +package blackfriday + +import ( + "bytes" + "io" +) + +// SPRenderer is a struct containing state of a Smartypants renderer. +type SPRenderer struct { + inSingleQuote bool + inDoubleQuote bool + callbacks [256]smartCallback +} + +func wordBoundary(c byte) bool { + return c == 0 || isspace(c) || ispunct(c) +} + +func tolower(c byte) byte { + if c >= 'A' && c <= 'Z' { + return c - 'A' + 'a' + } + return c +} + +func isdigit(c byte) bool { + return c >= '0' && c <= '9' +} + +func smartQuoteHelper(out *bytes.Buffer, previousChar byte, nextChar byte, quote byte, isOpen *bool, addNBSP bool) bool { + // edge of the buffer is likely to be a tag that we don't get to see, + // so we treat it like text sometimes + + // enumerate all sixteen possibilities for (previousChar, nextChar) + // each can be one of {0, space, punct, other} + switch { + case previousChar == 0 && nextChar == 0: + // context is not any help here, so toggle + *isOpen = !*isOpen + case isspace(previousChar) && nextChar == 0: + // [ "] might be [ "foo...] + *isOpen = true + case ispunct(previousChar) && nextChar == 0: + // [!"] hmm... could be [Run!"] or [("...] + *isOpen = false + case /* isnormal(previousChar) && */ nextChar == 0: + // [a"] is probably a close + *isOpen = false + case previousChar == 0 && isspace(nextChar): + // [" ] might be [...foo" ] + *isOpen = false + case isspace(previousChar) && isspace(nextChar): + // [ " ] context is not any help here, so toggle + *isOpen = !*isOpen + case ispunct(previousChar) && isspace(nextChar): + // [!" ] is probably a close + *isOpen = false + case /* isnormal(previousChar) && */ isspace(nextChar): + // [a" ] this is one of the easy cases + *isOpen = false + case previousChar == 0 && ispunct(nextChar): + // ["!] hmm... could be ["$1.95] or ["!...] + *isOpen = false + case isspace(previousChar) && ispunct(nextChar): + // [ "!] looks more like [ "$1.95] + *isOpen = true + case ispunct(previousChar) && ispunct(nextChar): + // [!"!] context is not any help here, so toggle + *isOpen = !*isOpen + case /* isnormal(previousChar) && */ ispunct(nextChar): + // [a"!] is probably a close + *isOpen = false + case previousChar == 0 /* && isnormal(nextChar) */ : + // ["a] is probably an open + *isOpen = true + case isspace(previousChar) /* && isnormal(nextChar) */ : + // [ "a] this is one of the easy cases + *isOpen = true + case ispunct(previousChar) /* && isnormal(nextChar) */ : + // [!"a] is probably an open + *isOpen = true + default: + // [a'b] maybe a contraction? + *isOpen = false + } + + // Note that with the limited lookahead, this non-breaking + // space will also be appended to single double quotes. + if addNBSP && !*isOpen { + out.WriteString(" ") + } + + out.WriteByte('&') + if *isOpen { + out.WriteByte('l') + } else { + out.WriteByte('r') + } + out.WriteByte(quote) + out.WriteString("quo;") + + if addNBSP && *isOpen { + out.WriteString(" ") + } + + return true +} + +func (r *SPRenderer) smartSingleQuote(out *bytes.Buffer, previousChar byte, text []byte) int { + if len(text) >= 2 { + t1 := tolower(text[1]) + + if t1 == '\'' { + nextChar := byte(0) + if len(text) >= 3 { + nextChar = text[2] + } + if smartQuoteHelper(out, previousChar, nextChar, 'd', &r.inDoubleQuote, false) { + return 1 + } + } + + if (t1 == 's' || t1 == 't' || t1 == 'm' || t1 == 'd') && (len(text) < 3 || wordBoundary(text[2])) { + out.WriteString("’") + return 0 + } + + if len(text) >= 3 { + t2 := tolower(text[2]) + + if ((t1 == 'r' && t2 == 'e') || (t1 == 'l' && t2 == 'l') || (t1 == 'v' && t2 == 'e')) && + (len(text) < 4 || wordBoundary(text[3])) { + out.WriteString("’") + return 0 + } + } + } + + nextChar := byte(0) + if len(text) > 1 { + nextChar = text[1] + } + if smartQuoteHelper(out, previousChar, nextChar, 's', &r.inSingleQuote, false) { + return 0 + } + + out.WriteByte(text[0]) + return 0 +} + +func (r *SPRenderer) smartParens(out *bytes.Buffer, previousChar byte, text []byte) int { + if len(text) >= 3 { + t1 := tolower(text[1]) + t2 := tolower(text[2]) + + if t1 == 'c' && t2 == ')' { + out.WriteString("©") + return 2 + } + + if t1 == 'r' && t2 == ')' { + out.WriteString("®") + return 2 + } + + if len(text) >= 4 && t1 == 't' && t2 == 'm' && text[3] == ')' { + out.WriteString("™") + return 3 + } + } + + out.WriteByte(text[0]) + return 0 +} + +func (r *SPRenderer) smartDash(out *bytes.Buffer, previousChar byte, text []byte) int { + if len(text) >= 2 { + if text[1] == '-' { + out.WriteString("—") + return 1 + } + + if wordBoundary(previousChar) && wordBoundary(text[1]) { + out.WriteString("–") + return 0 + } + } + + out.WriteByte(text[0]) + return 0 +} + +func (r *SPRenderer) smartDashLatex(out *bytes.Buffer, previousChar byte, text []byte) int { + if len(text) >= 3 && text[1] == '-' && text[2] == '-' { + out.WriteString("—") + return 2 + } + if len(text) >= 2 && text[1] == '-' { + out.WriteString("–") + return 1 + } + + out.WriteByte(text[0]) + return 0 +} + +func (r *SPRenderer) smartAmpVariant(out *bytes.Buffer, previousChar byte, text []byte, quote byte, addNBSP bool) int { + if bytes.HasPrefix(text, []byte(""")) { + nextChar := byte(0) + if len(text) >= 7 { + nextChar = text[6] + } + if smartQuoteHelper(out, previousChar, nextChar, quote, &r.inDoubleQuote, addNBSP) { + return 5 + } + } + + if bytes.HasPrefix(text, []byte("�")) { + return 3 + } + + out.WriteByte('&') + return 0 +} + +func (r *SPRenderer) smartAmp(angledQuotes, addNBSP bool) func(*bytes.Buffer, byte, []byte) int { + var quote byte = 'd' + if angledQuotes { + quote = 'a' + } + + return func(out *bytes.Buffer, previousChar byte, text []byte) int { + return r.smartAmpVariant(out, previousChar, text, quote, addNBSP) + } +} + +func (r *SPRenderer) smartPeriod(out *bytes.Buffer, previousChar byte, text []byte) int { + if len(text) >= 3 && text[1] == '.' && text[2] == '.' { + out.WriteString("…") + return 2 + } + + if len(text) >= 5 && text[1] == ' ' && text[2] == '.' && text[3] == ' ' && text[4] == '.' { + out.WriteString("…") + return 4 + } + + out.WriteByte(text[0]) + return 0 +} + +func (r *SPRenderer) smartBacktick(out *bytes.Buffer, previousChar byte, text []byte) int { + if len(text) >= 2 && text[1] == '`' { + nextChar := byte(0) + if len(text) >= 3 { + nextChar = text[2] + } + if smartQuoteHelper(out, previousChar, nextChar, 'd', &r.inDoubleQuote, false) { + return 1 + } + } + + out.WriteByte(text[0]) + return 0 +} + +func (r *SPRenderer) smartNumberGeneric(out *bytes.Buffer, previousChar byte, text []byte) int { + if wordBoundary(previousChar) && previousChar != '/' && len(text) >= 3 { + // is it of the form digits/digits(word boundary)?, i.e., \d+/\d+\b + // note: check for regular slash (/) or fraction slash (⁄, 0x2044, or 0xe2 81 84 in utf-8) + // and avoid changing dates like 1/23/2005 into fractions. + numEnd := 0 + for len(text) > numEnd && isdigit(text[numEnd]) { + numEnd++ + } + if numEnd == 0 { + out.WriteByte(text[0]) + return 0 + } + denStart := numEnd + 1 + if len(text) > numEnd+3 && text[numEnd] == 0xe2 && text[numEnd+1] == 0x81 && text[numEnd+2] == 0x84 { + denStart = numEnd + 3 + } else if len(text) < numEnd+2 || text[numEnd] != '/' { + out.WriteByte(text[0]) + return 0 + } + denEnd := denStart + for len(text) > denEnd && isdigit(text[denEnd]) { + denEnd++ + } + if denEnd == denStart { + out.WriteByte(text[0]) + return 0 + } + if len(text) == denEnd || wordBoundary(text[denEnd]) && text[denEnd] != '/' { + out.WriteString("") + out.Write(text[:numEnd]) + out.WriteString("⁄") + out.Write(text[denStart:denEnd]) + out.WriteString("") + return denEnd - 1 + } + } + + out.WriteByte(text[0]) + return 0 +} + +func (r *SPRenderer) smartNumber(out *bytes.Buffer, previousChar byte, text []byte) int { + if wordBoundary(previousChar) && previousChar != '/' && len(text) >= 3 { + if text[0] == '1' && text[1] == '/' && text[2] == '2' { + if len(text) < 4 || wordBoundary(text[3]) && text[3] != '/' { + out.WriteString("½") + return 2 + } + } + + if text[0] == '1' && text[1] == '/' && text[2] == '4' { + if len(text) < 4 || wordBoundary(text[3]) && text[3] != '/' || (len(text) >= 5 && tolower(text[3]) == 't' && tolower(text[4]) == 'h') { + out.WriteString("¼") + return 2 + } + } + + if text[0] == '3' && text[1] == '/' && text[2] == '4' { + if len(text) < 4 || wordBoundary(text[3]) && text[3] != '/' || (len(text) >= 6 && tolower(text[3]) == 't' && tolower(text[4]) == 'h' && tolower(text[5]) == 's') { + out.WriteString("¾") + return 2 + } + } + } + + out.WriteByte(text[0]) + return 0 +} + +func (r *SPRenderer) smartDoubleQuoteVariant(out *bytes.Buffer, previousChar byte, text []byte, quote byte) int { + nextChar := byte(0) + if len(text) > 1 { + nextChar = text[1] + } + if !smartQuoteHelper(out, previousChar, nextChar, quote, &r.inDoubleQuote, false) { + out.WriteString(""") + } + + return 0 +} + +func (r *SPRenderer) smartDoubleQuote(out *bytes.Buffer, previousChar byte, text []byte) int { + return r.smartDoubleQuoteVariant(out, previousChar, text, 'd') +} + +func (r *SPRenderer) smartAngledDoubleQuote(out *bytes.Buffer, previousChar byte, text []byte) int { + return r.smartDoubleQuoteVariant(out, previousChar, text, 'a') +} + +func (r *SPRenderer) smartLeftAngle(out *bytes.Buffer, previousChar byte, text []byte) int { + i := 0 + + for i < len(text) && text[i] != '>' { + i++ + } + + out.Write(text[:i+1]) + return i +} + +type smartCallback func(out *bytes.Buffer, previousChar byte, text []byte) int + +// NewSmartypantsRenderer constructs a Smartypants renderer object. +func NewSmartypantsRenderer(flags HTMLFlags) *SPRenderer { + var ( + r SPRenderer + + smartAmpAngled = r.smartAmp(true, false) + smartAmpAngledNBSP = r.smartAmp(true, true) + smartAmpRegular = r.smartAmp(false, false) + smartAmpRegularNBSP = r.smartAmp(false, true) + + addNBSP = flags&SmartypantsQuotesNBSP != 0 + ) + + if flags&SmartypantsAngledQuotes == 0 { + r.callbacks['"'] = r.smartDoubleQuote + if !addNBSP { + r.callbacks['&'] = smartAmpRegular + } else { + r.callbacks['&'] = smartAmpRegularNBSP + } + } else { + r.callbacks['"'] = r.smartAngledDoubleQuote + if !addNBSP { + r.callbacks['&'] = smartAmpAngled + } else { + r.callbacks['&'] = smartAmpAngledNBSP + } + } + r.callbacks['\''] = r.smartSingleQuote + r.callbacks['('] = r.smartParens + if flags&SmartypantsDashes != 0 { + if flags&SmartypantsLatexDashes == 0 { + r.callbacks['-'] = r.smartDash + } else { + r.callbacks['-'] = r.smartDashLatex + } + } + r.callbacks['.'] = r.smartPeriod + if flags&SmartypantsFractions == 0 { + r.callbacks['1'] = r.smartNumber + r.callbacks['3'] = r.smartNumber + } else { + for ch := '1'; ch <= '9'; ch++ { + r.callbacks[ch] = r.smartNumberGeneric + } + } + r.callbacks['<'] = r.smartLeftAngle + r.callbacks['`'] = r.smartBacktick + return &r +} + +// Process is the entry point of the Smartypants renderer. +func (r *SPRenderer) Process(w io.Writer, text []byte) { + mark := 0 + for i := 0; i < len(text); i++ { + if action := r.callbacks[text[i]]; action != nil { + if i > mark { + w.Write(text[mark:i]) + } + previousChar := byte(0) + if i > 0 { + previousChar = text[i-1] + } + var tmp bytes.Buffer + i += action(&tmp, previousChar, text[i:]) + w.Write(tmp.Bytes()) + mark = i + 1 + } + } + if mark < len(text) { + w.Write(text[mark:]) + } +} diff --git a/vendor/github.com/safchain/ethtool/.gitignore b/vendor/github.com/safchain/ethtool/.gitignore new file mode 100644 index 000000000..db6cadffd --- /dev/null +++ b/vendor/github.com/safchain/ethtool/.gitignore @@ -0,0 +1,27 @@ +# Compiled Object files, Static and Dynamic libs (Shared Objects) +*.o +*.a +*.so + +# Folders +_obj +_test + +# Architecture specific extensions/prefixes +*.[568vq] +[568vq].out + +*.cgo1.go +*.cgo2.c +_cgo_defun.c +_cgo_gotypes.go +_cgo_export.* + +_testmain.go + +*.exe +*.test +*.prof + +# Skip compiled example binary file +/example/example diff --git a/vendor/github.com/safchain/ethtool/.golangci.yml b/vendor/github.com/safchain/ethtool/.golangci.yml new file mode 100644 index 000000000..77ccf927e --- /dev/null +++ b/vendor/github.com/safchain/ethtool/.golangci.yml @@ -0,0 +1,14 @@ +linters: + disable: + - gosimple + - unused + enable: + - gci + - gofmt + - misspell +linters-settings: + gci: + sections: + - standard + - default + - prefix(github.com/safchain/ethtool) diff --git a/vendor/github.com/safchain/ethtool/.yamllint b/vendor/github.com/safchain/ethtool/.yamllint new file mode 100644 index 000000000..9862c5f78 --- /dev/null +++ b/vendor/github.com/safchain/ethtool/.yamllint @@ -0,0 +1,7 @@ +--- +extends: default + +rules: + document-start: disable + truthy: + check-keys: false diff --git a/vendor/github.com/safchain/ethtool/LICENSE b/vendor/github.com/safchain/ethtool/LICENSE new file mode 100644 index 000000000..8f71f43fe --- /dev/null +++ b/vendor/github.com/safchain/ethtool/LICENSE @@ -0,0 +1,202 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright {yyyy} {name of copyright owner} + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + diff --git a/vendor/github.com/safchain/ethtool/Makefile b/vendor/github.com/safchain/ethtool/Makefile new file mode 100644 index 000000000..67d2da395 --- /dev/null +++ b/vendor/github.com/safchain/ethtool/Makefile @@ -0,0 +1,4 @@ +all: build + +build: + CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build diff --git a/vendor/github.com/safchain/ethtool/README.md b/vendor/github.com/safchain/ethtool/README.md new file mode 100644 index 000000000..e44367582 --- /dev/null +++ b/vendor/github.com/safchain/ethtool/README.md @@ -0,0 +1,55 @@ +# ethtool go package # + +![Build Status](https://github.com/safchain/ethtool/actions/workflows/unittests.yml/badge.svg) +[![GoDoc](https://godoc.org/github.com/safchain/ethtool?status.svg)](https://godoc.org/github.com/safchain/ethtool) + + +The ethtool package aims to provide a library that provides easy access to the Linux SIOCETHTOOL ioctl operations. It can be used to retrieve information from a network device such as statistics, driver related information or even the peer of a VETH interface. + +# Installation + +```shell +go get github.com/safchain/ethtool +``` + +# How to use + +```go +package main + +import ( + "fmt" + + "github.com/safchain/ethtool" +) + +func main() { + ethHandle, err := ethtool.NewEthtool() + if err != nil { + panic(err.Error()) + } + defer ethHandle.Close() + + // Retrieve tx from eth0 + stats, err := ethHandle.Stats("eth0") + if err != nil { + panic(err.Error()) + } + fmt.Printf("TX: %d\n", stats["tx_bytes"]) + + // Retrieve peer index of a veth interface + stats, err = ethHandle.Stats("veth0") + if err != nil { + panic(err.Error()) + } + fmt.Printf("Peer Index: %d\n", stats["peer_ifindex"]) +} +``` + +## LICENSE ## + +Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at + +http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. diff --git a/vendor/github.com/safchain/ethtool/ethtool.go b/vendor/github.com/safchain/ethtool/ethtool.go new file mode 100644 index 000000000..42fc34520 --- /dev/null +++ b/vendor/github.com/safchain/ethtool/ethtool.go @@ -0,0 +1,1012 @@ +/* + * + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + * + */ + +// The ethtool package aims to provide a library that provides easy access +// to the Linux SIOCETHTOOL ioctl operations. It can be used to retrieve information +// from a network device such as statistics, driver related information or even +// the peer of a VETH interface. +package ethtool + +import ( + "bytes" + "encoding/hex" + "fmt" + "strings" + "unsafe" + + "golang.org/x/sys/unix" +) + +// Maximum size of an interface name +const ( + IFNAMSIZ = 16 +) + +// ioctl ethtool request +const ( + SIOCETHTOOL = 0x8946 +) + +// ethtool stats related constants. +const ( + ETH_GSTRING_LEN = 32 + ETH_SS_STATS = 1 + ETH_SS_PRIV_FLAGS = 2 + ETH_SS_FEATURES = 4 + + // CMD supported + ETHTOOL_GSET = 0x00000001 /* Get settings. */ + ETHTOOL_SSET = 0x00000002 /* Set settings. */ + ETHTOOL_GDRVINFO = 0x00000003 /* Get driver info. */ + ETHTOOL_GMSGLVL = 0x00000007 /* Get driver message level */ + ETHTOOL_SMSGLVL = 0x00000008 /* Set driver msg level. */ + + /* Get link status for host, i.e. whether the interface *and* the + * physical port (if there is one) are up (ethtool_value). */ + ETHTOOL_GLINK = 0x0000000a + ETHTOOL_GCOALESCE = 0x0000000e /* Get coalesce config */ + ETHTOOL_GRINGPARAM = 0x00000010 /* Get ring parameters */ + ETHTOOL_SRINGPARAM = 0x00000011 /* Set ring parameters. */ + ETHTOOL_GPAUSEPARAM = 0x00000012 /* Get pause parameters */ + ETHTOOL_SPAUSEPARAM = 0x00000013 /* Set pause parameters. */ + ETHTOOL_GSTRINGS = 0x0000001b /* Get specified string set */ + ETHTOOL_GSTATS = 0x0000001d /* Get NIC-specific statistics */ + ETHTOOL_GPERMADDR = 0x00000020 /* Get permanent hardware address */ + ETHTOOL_GFLAGS = 0x00000025 /* Get flags bitmap(ethtool_value) */ + ETHTOOL_GPFLAGS = 0x00000027 /* Get driver-private flags bitmap */ + ETHTOOL_SPFLAGS = 0x00000028 /* Set driver-private flags bitmap */ + ETHTOOL_GSSET_INFO = 0x00000037 /* Get string set info */ + ETHTOOL_GFEATURES = 0x0000003a /* Get device offload settings */ + ETHTOOL_SFEATURES = 0x0000003b /* Change device offload settings */ + ETHTOOL_GCHANNELS = 0x0000003c /* Get no of channels */ + ETHTOOL_SCHANNELS = 0x0000003d /* Set no of channels */ + ETHTOOL_GET_TS_INFO = 0x00000041 /* Get time stamping and PHC info */ + ETHTOOL_GMODULEINFO = 0x00000042 /* Get plug-in module information */ + ETHTOOL_GMODULEEEPROM = 0x00000043 /* Get plug-in module eeprom */ +) + +// MAX_GSTRINGS maximum number of stats entries that ethtool can +// retrieve currently. +const ( + MAX_GSTRINGS = 32768 + MAX_FEATURE_BLOCKS = (MAX_GSTRINGS + 32 - 1) / 32 + EEPROM_LEN = 640 + PERMADDR_LEN = 32 +) + +// ethtool sset_info related constants +const ( + MAX_SSET_INFO = 64 +) + +var supportedCapabilities = []struct { + name string + mask uint64 + speed uint64 +}{ + {"10baseT_Half", unix.ETHTOOL_LINK_MODE_10baseT_Half_BIT, 10_000_000}, + {"10baseT_Full", unix.ETHTOOL_LINK_MODE_10baseT_Full_BIT, 10_000_000}, + {"100baseT_Half", unix.ETHTOOL_LINK_MODE_100baseT_Half_BIT, 100_000_000}, + {"100baseT_Full", unix.ETHTOOL_LINK_MODE_100baseT_Full_BIT, 100_000_000}, + {"1000baseT_Half", unix.ETHTOOL_LINK_MODE_1000baseT_Half_BIT, 1_000_000_000}, + {"1000baseT_Full", unix.ETHTOOL_LINK_MODE_1000baseT_Full_BIT, 1_000_000_000}, + {"10000baseT_Full", unix.ETHTOOL_LINK_MODE_10000baseT_Full_BIT, 10_000_000_000}, + {"2500baseT_Full", unix.ETHTOOL_LINK_MODE_2500baseT_Full_BIT, 2_500_000_000}, + {"1000baseKX_Full", unix.ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, 1_000_000_000}, + {"10000baseKX_Full", unix.ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, 10_000_000_000}, + {"10000baseKR_Full", unix.ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, 10_000_000_000}, + {"10000baseR_FEC", unix.ETHTOOL_LINK_MODE_10000baseR_FEC_BIT, 10_000_000_000}, + {"20000baseMLD2_Full", unix.ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT, 20_000_000_000}, + {"20000baseKR2_Full", unix.ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT, 20_000_000_000}, + {"40000baseKR4_Full", unix.ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT, 40_000_000_000}, + {"40000baseCR4_Full", unix.ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT, 40_000_000_000}, + {"40000baseSR4_Full", unix.ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT, 40_000_000_000}, + {"40000baseLR4_Full", unix.ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT, 40_000_000_000}, + {"56000baseKR4_Full", unix.ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT, 56_000_000_000}, + {"56000baseCR4_Full", unix.ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT, 56_000_000_000}, + {"56000baseSR4_Full", unix.ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT, 56_000_000_000}, + {"56000baseLR4_Full", unix.ETHTOOL_LINK_MODE_56000baseLR4_Full_BIT, 56_000_000_000}, + {"25000baseCR_Full", unix.ETHTOOL_LINK_MODE_25000baseCR_Full_BIT, 25_000_000_000}, +} + +type ifreq struct { + ifr_name [IFNAMSIZ]byte + ifr_data uintptr +} + +// following structures comes from uapi/linux/ethtool.h +type ethtoolSsetInfo struct { + cmd uint32 + reserved uint32 + sset_mask uint64 + data [MAX_SSET_INFO]uint32 +} + +type ethtoolGetFeaturesBlock struct { + available uint32 + requested uint32 + active uint32 + never_changed uint32 +} + +type ethtoolGfeatures struct { + cmd uint32 + size uint32 + blocks [MAX_FEATURE_BLOCKS]ethtoolGetFeaturesBlock +} + +type ethtoolSetFeaturesBlock struct { + valid uint32 + requested uint32 +} + +type ethtoolSfeatures struct { + cmd uint32 + size uint32 + blocks [MAX_FEATURE_BLOCKS]ethtoolSetFeaturesBlock +} + +type ethtoolDrvInfo struct { + cmd uint32 + driver [32]byte + version [32]byte + fw_version [32]byte + bus_info [32]byte + erom_version [32]byte + reserved2 [12]byte + n_priv_flags uint32 + n_stats uint32 + testinfo_len uint32 + eedump_len uint32 + regdump_len uint32 +} + +// DrvInfo contains driver information +// ethtool.h v3.5: struct ethtool_drvinfo +type DrvInfo struct { + Cmd uint32 + Driver string + Version string + FwVersion string + BusInfo string + EromVersion string + Reserved2 string + NPrivFlags uint32 + NStats uint32 + TestInfoLen uint32 + EedumpLen uint32 + RegdumpLen uint32 +} + +// Channels contains the number of channels for a given interface. +type Channels struct { + Cmd uint32 + MaxRx uint32 + MaxTx uint32 + MaxOther uint32 + MaxCombined uint32 + RxCount uint32 + TxCount uint32 + OtherCount uint32 + CombinedCount uint32 +} + +// Coalesce is a coalesce config for an interface +type Coalesce struct { + Cmd uint32 + RxCoalesceUsecs uint32 + RxMaxCoalescedFrames uint32 + RxCoalesceUsecsIrq uint32 + RxMaxCoalescedFramesIrq uint32 + TxCoalesceUsecs uint32 + TxMaxCoalescedFrames uint32 + TxCoalesceUsecsIrq uint32 + TxMaxCoalescedFramesIrq uint32 + StatsBlockCoalesceUsecs uint32 + UseAdaptiveRxCoalesce uint32 + UseAdaptiveTxCoalesce uint32 + PktRateLow uint32 + RxCoalesceUsecsLow uint32 + RxMaxCoalescedFramesLow uint32 + TxCoalesceUsecsLow uint32 + TxMaxCoalescedFramesLow uint32 + PktRateHigh uint32 + RxCoalesceUsecsHigh uint32 + RxMaxCoalescedFramesHigh uint32 + TxCoalesceUsecsHigh uint32 + TxMaxCoalescedFramesHigh uint32 + RateSampleInterval uint32 +} + +const ( + SOF_TIMESTAMPING_TX_HARDWARE = (1 << 0) + SOF_TIMESTAMPING_TX_SOFTWARE = (1 << 1) + SOF_TIMESTAMPING_RX_HARDWARE = (1 << 2) + SOF_TIMESTAMPING_RX_SOFTWARE = (1 << 3) + SOF_TIMESTAMPING_SOFTWARE = (1 << 4) + SOF_TIMESTAMPING_SYS_HARDWARE = (1 << 5) + SOF_TIMESTAMPING_RAW_HARDWARE = (1 << 6) + SOF_TIMESTAMPING_OPT_ID = (1 << 7) + SOF_TIMESTAMPING_TX_SCHED = (1 << 8) + SOF_TIMESTAMPING_TX_ACK = (1 << 9) + SOF_TIMESTAMPING_OPT_CMSG = (1 << 10) + SOF_TIMESTAMPING_OPT_TSONLY = (1 << 11) + SOF_TIMESTAMPING_OPT_STATS = (1 << 12) + SOF_TIMESTAMPING_OPT_PKTINFO = (1 << 13) + SOF_TIMESTAMPING_OPT_TX_SWHW = (1 << 14) + SOF_TIMESTAMPING_BIND_PHC = (1 << 15) +) + +const ( + /* + * No outgoing packet will need hardware time stamping; + * should a packet arrive which asks for it, no hardware + * time stamping will be done. + */ + HWTSTAMP_TX_OFF = iota + + /* + * Enables hardware time stamping for outgoing packets; + * the sender of the packet decides which are to be + * time stamped by setting %SOF_TIMESTAMPING_TX_SOFTWARE + * before sending the packet. + */ + HWTSTAMP_TX_ON + + /* + * Enables time stamping for outgoing packets just as + * HWTSTAMP_TX_ON does, but also enables time stamp insertion + * directly into Sync packets. In this case, transmitted Sync + * packets will not received a time stamp via the socket error + * queue. + */ + HWTSTAMP_TX_ONESTEP_SYNC + + /* + * Same as HWTSTAMP_TX_ONESTEP_SYNC, but also enables time + * stamp insertion directly into PDelay_Resp packets. In this + * case, neither transmitted Sync nor PDelay_Resp packets will + * receive a time stamp via the socket error queue. + */ + HWTSTAMP_TX_ONESTEP_P2P +) + +const ( + HWTSTAMP_FILTER_NONE = iota /* time stamp no incoming packet at all */ + HWTSTAMP_FILTER_ALL /* time stamp any incoming packet */ + HWTSTAMP_FILTER_SOME /* return value: time stamp all packets requested plus some others */ + HWTSTAMP_FILTER_PTP_V1_L4_EVENT /* PTP v1, UDP, any kind of event packet */ + HWTSTAMP_FILTER_PTP_V1_L4_SYNC /* PTP v1, UDP, Sync packet */ + HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ /* PTP v1, UDP, Delay_req packet */ + HWTSTAMP_FILTER_PTP_V2_L4_EVENT /* PTP v2, UDP, any kind of event packet */ + HWTSTAMP_FILTER_PTP_V2_L4_SYNC /* PTP v2, UDP, Sync packet */ + HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ /* PTP v2, UDP, Delay_req packet */ + HWTSTAMP_FILTER_PTP_V2_L2_EVENT /* 802.AS1, Ethernet, any kind of event packet */ + HWTSTAMP_FILTER_PTP_V2_L2_SYNC /* 802.AS1, Ethernet, Sync packet */ + HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ /* 802.AS1, Ethernet, Delay_req packet */ + HWTSTAMP_FILTER_PTP_V2_EVENT /* PTP v2/802.AS1, any layer, any kind of event packet */ + HWTSTAMP_FILTER_PTP_V2_SYNC /* PTP v2/802.AS1, any layer, Sync packet */ + HWTSTAMP_FILTER_PTP_V2_DELAY_REQ /* PTP v2/802.AS1, any layer, Delay_req packet */ + HWTSTAMP_FILTER_NTP_ALL /* NTP, UDP, all versions and packet modes */ +) + +type TimestampingInformation struct { + Cmd uint32 + SoTimestamping uint32 /* SOF_TIMESTAMPING_* bitmask */ + PhcIndex int32 + TxTypes uint32 /* HWTSTAMP_TX_* */ + txReserved [3]uint32 + RxFilters uint32 /* HWTSTAMP_FILTER_ */ + rxReserved [3]uint32 +} + +type ethtoolGStrings struct { + cmd uint32 + string_set uint32 + len uint32 + data [MAX_GSTRINGS * ETH_GSTRING_LEN]byte +} + +type ethtoolStats struct { + cmd uint32 + n_stats uint32 + data [MAX_GSTRINGS]uint64 +} + +type ethtoolEeprom struct { + cmd uint32 + magic uint32 + offset uint32 + len uint32 + data [EEPROM_LEN]byte +} + +type ethtoolModInfo struct { + cmd uint32 + tpe uint32 + eeprom_len uint32 + reserved [8]uint32 +} + +type ethtoolLink struct { + cmd uint32 + data uint32 +} + +type ethtoolPermAddr struct { + cmd uint32 + size uint32 + data [PERMADDR_LEN]byte +} + +// Ring is a ring config for an interface +type Ring struct { + Cmd uint32 + RxMaxPending uint32 + RxMiniMaxPending uint32 + RxJumboMaxPending uint32 + TxMaxPending uint32 + RxPending uint32 + RxMiniPending uint32 + RxJumboPending uint32 + TxPending uint32 +} + +// Pause is a pause config for an interface +type Pause struct { + Cmd uint32 + Autoneg uint32 + RxPause uint32 + TxPause uint32 +} + +type Ethtool struct { + fd int +} + +// Convert zero-terminated array of chars (string in C) to a Go string. +func goString(s []byte) string { + strEnd := bytes.IndexByte(s, 0) + if strEnd == -1 { + return string(s[:]) + } + return string(s[:strEnd]) +} + +// DriverName returns the driver name of the given interface name. +func (e *Ethtool) DriverName(intf string) (string, error) { + info, err := e.getDriverInfo(intf) + if err != nil { + return "", err + } + return goString(info.driver[:]), nil +} + +// BusInfo returns the bus information of the given interface name. +func (e *Ethtool) BusInfo(intf string) (string, error) { + info, err := e.getDriverInfo(intf) + if err != nil { + return "", err + } + return goString(info.bus_info[:]), nil +} + +// ModuleEeprom returns Eeprom information of the given interface name. +func (e *Ethtool) ModuleEeprom(intf string) ([]byte, error) { + eeprom, _, err := e.getModuleEeprom(intf) + if err != nil { + return nil, err + } + + return eeprom.data[:eeprom.len], nil +} + +// ModuleEeprom returns Eeprom information of the given interface name. +func (e *Ethtool) ModuleEepromHex(intf string) (string, error) { + eeprom, _, err := e.getModuleEeprom(intf) + if err != nil { + return "", err + } + + return hex.EncodeToString(eeprom.data[:eeprom.len]), nil +} + +// DriverInfo returns driver information of the given interface name. +func (e *Ethtool) DriverInfo(intf string) (DrvInfo, error) { + i, err := e.getDriverInfo(intf) + if err != nil { + return DrvInfo{}, err + } + + drvInfo := DrvInfo{ + Cmd: i.cmd, + Driver: goString(i.driver[:]), + Version: goString(i.version[:]), + FwVersion: goString(i.fw_version[:]), + BusInfo: goString(i.bus_info[:]), + EromVersion: goString(i.erom_version[:]), + Reserved2: goString(i.reserved2[:]), + NPrivFlags: i.n_priv_flags, + NStats: i.n_stats, + TestInfoLen: i.testinfo_len, + EedumpLen: i.eedump_len, + RegdumpLen: i.regdump_len, + } + + return drvInfo, nil +} + +// GetChannels returns the number of channels for the given interface name. +func (e *Ethtool) GetChannels(intf string) (Channels, error) { + channels, err := e.getChannels(intf) + if err != nil { + return Channels{}, err + } + + return channels, nil +} + +// SetChannels sets the number of channels for the given interface name and +// returns the new number of channels. +func (e *Ethtool) SetChannels(intf string, channels Channels) (Channels, error) { + channels, err := e.setChannels(intf, channels) + if err != nil { + return Channels{}, err + } + + return channels, nil +} + +// GetCoalesce returns the coalesce config for the given interface name. +func (e *Ethtool) GetCoalesce(intf string) (Coalesce, error) { + coalesce, err := e.getCoalesce(intf) + if err != nil { + return Coalesce{}, err + } + return coalesce, nil +} + +// GetTimestampingInformation returns the PTP timestamping information for the given interface name. +func (e *Ethtool) GetTimestampingInformation(intf string) (TimestampingInformation, error) { + ts, err := e.getTimestampingInformation(intf) + if err != nil { + return TimestampingInformation{}, err + } + return ts, nil +} + +// PermAddr returns permanent address of the given interface name. +func (e *Ethtool) PermAddr(intf string) (string, error) { + permAddr, err := e.getPermAddr(intf) + if err != nil { + return "", err + } + + if permAddr.data[0] == 0 && permAddr.data[1] == 0 && + permAddr.data[2] == 0 && permAddr.data[3] == 0 && + permAddr.data[4] == 0 && permAddr.data[5] == 0 { + return "", nil + } + + return fmt.Sprintf("%x:%x:%x:%x:%x:%x", + permAddr.data[0:1], + permAddr.data[1:2], + permAddr.data[2:3], + permAddr.data[3:4], + permAddr.data[4:5], + permAddr.data[5:6], + ), nil +} + +func (e *Ethtool) ioctl(intf string, data uintptr) error { + var name [IFNAMSIZ]byte + copy(name[:], []byte(intf)) + + ifr := ifreq{ + ifr_name: name, + ifr_data: data, + } + + _, _, ep := unix.Syscall(unix.SYS_IOCTL, uintptr(e.fd), SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr))) + if ep != 0 { + return ep + } + + return nil +} + +func (e *Ethtool) getDriverInfo(intf string) (ethtoolDrvInfo, error) { + drvinfo := ethtoolDrvInfo{ + cmd: ETHTOOL_GDRVINFO, + } + + if err := e.ioctl(intf, uintptr(unsafe.Pointer(&drvinfo))); err != nil { + return ethtoolDrvInfo{}, err + } + + return drvinfo, nil +} + +func (e *Ethtool) getChannels(intf string) (Channels, error) { + channels := Channels{ + Cmd: ETHTOOL_GCHANNELS, + } + + if err := e.ioctl(intf, uintptr(unsafe.Pointer(&channels))); err != nil { + return Channels{}, err + } + + return channels, nil +} + +func (e *Ethtool) setChannels(intf string, channels Channels) (Channels, error) { + channels.Cmd = ETHTOOL_SCHANNELS + + if err := e.ioctl(intf, uintptr(unsafe.Pointer(&channels))); err != nil { + return Channels{}, err + } + + return channels, nil +} + +func (e *Ethtool) getCoalesce(intf string) (Coalesce, error) { + coalesce := Coalesce{ + Cmd: ETHTOOL_GCOALESCE, + } + + if err := e.ioctl(intf, uintptr(unsafe.Pointer(&coalesce))); err != nil { + return Coalesce{}, err + } + + return coalesce, nil +} + +func (e *Ethtool) getTimestampingInformation(intf string) (TimestampingInformation, error) { + ts := TimestampingInformation{ + Cmd: ETHTOOL_GET_TS_INFO, + } + + if err := e.ioctl(intf, uintptr(unsafe.Pointer(&ts))); err != nil { + return TimestampingInformation{}, err + } + + return ts, nil +} + +func (e *Ethtool) getPermAddr(intf string) (ethtoolPermAddr, error) { + permAddr := ethtoolPermAddr{ + cmd: ETHTOOL_GPERMADDR, + size: PERMADDR_LEN, + } + + if err := e.ioctl(intf, uintptr(unsafe.Pointer(&permAddr))); err != nil { + return ethtoolPermAddr{}, err + } + + return permAddr, nil +} + +func (e *Ethtool) getModuleEeprom(intf string) (ethtoolEeprom, ethtoolModInfo, error) { + modInfo := ethtoolModInfo{ + cmd: ETHTOOL_GMODULEINFO, + } + + if err := e.ioctl(intf, uintptr(unsafe.Pointer(&modInfo))); err != nil { + return ethtoolEeprom{}, ethtoolModInfo{}, err + } + + eeprom := ethtoolEeprom{ + cmd: ETHTOOL_GMODULEEEPROM, + len: modInfo.eeprom_len, + offset: 0, + } + + if modInfo.eeprom_len > EEPROM_LEN { + return ethtoolEeprom{}, ethtoolModInfo{}, fmt.Errorf("eeprom size: %d is larger than buffer size: %d", modInfo.eeprom_len, EEPROM_LEN) + } + + if err := e.ioctl(intf, uintptr(unsafe.Pointer(&eeprom))); err != nil { + return ethtoolEeprom{}, ethtoolModInfo{}, err + } + + return eeprom, modInfo, nil +} + +// GetRing retrieves ring parameters of the given interface name. +func (e *Ethtool) GetRing(intf string) (Ring, error) { + ring := Ring{ + Cmd: ETHTOOL_GRINGPARAM, + } + + if err := e.ioctl(intf, uintptr(unsafe.Pointer(&ring))); err != nil { + return Ring{}, err + } + + return ring, nil +} + +// SetRing sets ring parameters of the given interface name. +func (e *Ethtool) SetRing(intf string, ring Ring) (Ring, error) { + ring.Cmd = ETHTOOL_SRINGPARAM + + if err := e.ioctl(intf, uintptr(unsafe.Pointer(&ring))); err != nil { + return Ring{}, err + } + + return ring, nil +} + +// GetPause retrieves pause parameters of the given interface name. +func (e *Ethtool) GetPause(intf string) (Pause, error) { + pause := Pause{ + Cmd: ETHTOOL_GPAUSEPARAM, + } + + if err := e.ioctl(intf, uintptr(unsafe.Pointer(&pause))); err != nil { + return Pause{}, err + } + + return pause, nil +} + +// SetPause sets pause parameters of the given interface name. +func (e *Ethtool) SetPause(intf string, pause Pause) (Pause, error) { + pause.Cmd = ETHTOOL_SPAUSEPARAM + + if err := e.ioctl(intf, uintptr(unsafe.Pointer(&pause))); err != nil { + return Pause{}, err + } + + return pause, nil +} + +func isFeatureBitSet(blocks [MAX_FEATURE_BLOCKS]ethtoolGetFeaturesBlock, index uint) bool { + return (blocks)[index/32].active&(1<<(index%32)) != 0 +} + +func setFeatureBit(blocks *[MAX_FEATURE_BLOCKS]ethtoolSetFeaturesBlock, index uint, value bool) { + blockIndex, bitIndex := index/32, index%32 + + blocks[blockIndex].valid |= 1 << bitIndex + + if value { + blocks[blockIndex].requested |= 1 << bitIndex + } else { + blocks[blockIndex].requested &= ^(1 << bitIndex) + } +} + +func (e *Ethtool) getNames(intf string, mask int) (map[string]uint, error) { + ssetInfo := ethtoolSsetInfo{ + cmd: ETHTOOL_GSSET_INFO, + sset_mask: 1 << mask, + data: [MAX_SSET_INFO]uint32{}, + } + + if err := e.ioctl(intf, uintptr(unsafe.Pointer(&ssetInfo))); err != nil { + return nil, err + } + + /* we only read data on first index because single bit was set in sset_mask(0x10) */ + length := ssetInfo.data[0] + if length == 0 { + return map[string]uint{}, nil + } else if length > MAX_GSTRINGS { + return nil, fmt.Errorf("ethtool currently doesn't support more than %d entries, received %d", MAX_GSTRINGS, length) + } + + gstrings := ethtoolGStrings{ + cmd: ETHTOOL_GSTRINGS, + string_set: uint32(mask), + len: length, + data: [MAX_GSTRINGS * ETH_GSTRING_LEN]byte{}, + } + + if err := e.ioctl(intf, uintptr(unsafe.Pointer(&gstrings))); err != nil { + return nil, err + } + + result := make(map[string]uint) + for i := 0; i != int(length); i++ { + b := gstrings.data[i*ETH_GSTRING_LEN : i*ETH_GSTRING_LEN+ETH_GSTRING_LEN] + key := goString(b) + if key != "" { + result[key] = uint(i) + } + } + + return result, nil +} + +// FeatureNames shows supported features by their name. +func (e *Ethtool) FeatureNames(intf string) (map[string]uint, error) { + return e.getNames(intf, ETH_SS_FEATURES) +} + +// Features retrieves features of the given interface name. +func (e *Ethtool) Features(intf string) (map[string]bool, error) { + names, err := e.FeatureNames(intf) + if err != nil { + return nil, err + } + + length := uint32(len(names)) + if length == 0 { + return map[string]bool{}, nil + } + + features := ethtoolGfeatures{ + cmd: ETHTOOL_GFEATURES, + size: (length + 32 - 1) / 32, + } + + if err := e.ioctl(intf, uintptr(unsafe.Pointer(&features))); err != nil { + return nil, err + } + + result := make(map[string]bool, length) + for key, index := range names { + result[key] = isFeatureBitSet(features.blocks, index) + } + + return result, nil +} + +// Change requests a change in the given device's features. +func (e *Ethtool) Change(intf string, config map[string]bool) error { + names, err := e.FeatureNames(intf) + if err != nil { + return err + } + + length := uint32(len(names)) + + features := ethtoolSfeatures{ + cmd: ETHTOOL_SFEATURES, + size: (length + 32 - 1) / 32, + } + + for key, value := range config { + if index, ok := names[key]; ok { + setFeatureBit(&features.blocks, index, value) + } else { + return fmt.Errorf("unsupported feature %q", key) + } + } + + return e.ioctl(intf, uintptr(unsafe.Pointer(&features))) +} + +// PrivFlagsNames shows supported private flags by their name. +func (e *Ethtool) PrivFlagsNames(intf string) (map[string]uint, error) { + return e.getNames(intf, ETH_SS_PRIV_FLAGS) +} + +// PrivFlags retrieves private flags of the given interface name. +func (e *Ethtool) PrivFlags(intf string) (map[string]bool, error) { + names, err := e.PrivFlagsNames(intf) + if err != nil { + return nil, err + } + + length := uint32(len(names)) + if length == 0 { + return map[string]bool{}, nil + } + + var val ethtoolLink + val.cmd = ETHTOOL_GPFLAGS + if err := e.ioctl(intf, uintptr(unsafe.Pointer(&val))); err != nil { + return nil, err + } + + result := make(map[string]bool, length) + for name, mask := range names { + result[name] = val.data&(1< MAX_GSTRINGS*ETH_GSTRING_LEN { + return nil, fmt.Errorf("ethtool currently doesn't support more than %d entries, received %d", MAX_GSTRINGS, drvinfo.n_stats) + } + + gstrings := ethtoolGStrings{ + cmd: ETHTOOL_GSTRINGS, + string_set: ETH_SS_STATS, + len: drvinfo.n_stats, + data: [MAX_GSTRINGS * ETH_GSTRING_LEN]byte{}, + } + + if err := e.ioctl(intf, uintptr(unsafe.Pointer(&gstrings))); err != nil { + return nil, err + } + + stats := ethtoolStats{ + cmd: ETHTOOL_GSTATS, + n_stats: drvinfo.n_stats, + data: [MAX_GSTRINGS]uint64{}, + } + + if err := e.ioctl(intf, uintptr(unsafe.Pointer(&stats))); err != nil { + return nil, err + } + + result := make(map[string]uint64) + for i := 0; i != int(drvinfo.n_stats); i++ { + b := gstrings.data[i*ETH_GSTRING_LEN : i*ETH_GSTRING_LEN+ETH_GSTRING_LEN] + strEnd := strings.Index(string(b), "\x00") + if strEnd == -1 { + strEnd = ETH_GSTRING_LEN + } + key := string(b[:strEnd]) + if len(key) != 0 { + result[key] = stats.data[i] + } + } + + return result, nil +} + +// Close closes the ethool handler +func (e *Ethtool) Close() { + unix.Close(e.fd) +} + +// NewEthtool returns a new ethtool handler +func NewEthtool() (*Ethtool, error) { + fd, err := unix.Socket(unix.AF_INET, unix.SOCK_DGRAM, unix.IPPROTO_IP) + if err != nil { + return nil, err + } + + return &Ethtool{ + fd: int(fd), + }, nil +} + +// BusInfo returns bus information of the given interface name. +func BusInfo(intf string) (string, error) { + e, err := NewEthtool() + if err != nil { + return "", err + } + defer e.Close() + return e.BusInfo(intf) +} + +// DriverName returns the driver name of the given interface name. +func DriverName(intf string) (string, error) { + e, err := NewEthtool() + if err != nil { + return "", err + } + defer e.Close() + return e.DriverName(intf) +} + +// Stats retrieves stats of the given interface name. +func Stats(intf string) (map[string]uint64, error) { + e, err := NewEthtool() + if err != nil { + return nil, err + } + defer e.Close() + return e.Stats(intf) +} + +// PermAddr returns permanent address of the given interface name. +func PermAddr(intf string) (string, error) { + e, err := NewEthtool() + if err != nil { + return "", err + } + defer e.Close() + return e.PermAddr(intf) +} + +func supportedSpeeds(mask uint64) (ret []struct { + name string + mask uint64 + speed uint64 +}) { + for _, mode := range supportedCapabilities { + if ((1 << mode.mask) & mask) != 0 { + ret = append(ret, mode) + } + } + return ret +} + +// SupportedLinkModes returns the names of the link modes supported by the interface. +func SupportedLinkModes(mask uint64) []string { + var ret []string + for _, mode := range supportedSpeeds(mask) { + ret = append(ret, mode.name) + } + return ret +} + +// SupportedSpeed returns the maximum capacity of this interface. +func SupportedSpeed(mask uint64) uint64 { + var ret uint64 + for _, mode := range supportedSpeeds(mask) { + if mode.speed > ret { + ret = mode.speed + } + } + return ret +} diff --git a/vendor/github.com/safchain/ethtool/ethtool_cmd.go b/vendor/github.com/safchain/ethtool/ethtool_cmd.go new file mode 100644 index 000000000..e94d6dd89 --- /dev/null +++ b/vendor/github.com/safchain/ethtool/ethtool_cmd.go @@ -0,0 +1,208 @@ +/* + * + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + * + */ + +// Package ethtool aims to provide a library giving a simple access to the +// Linux SIOCETHTOOL ioctl operations. It can be used to retrieve informations +// from a network device like statistics, driver related informations or +// even the peer of a VETH interface. +package ethtool + +import ( + "math" + "reflect" + "unsafe" + + "golang.org/x/sys/unix" +) + +type EthtoolCmd struct { /* ethtool.c: struct ethtool_cmd */ + Cmd uint32 + Supported uint32 + Advertising uint32 + Speed uint16 + Duplex uint8 + Port uint8 + Phy_address uint8 + Transceiver uint8 + Autoneg uint8 + Mdio_support uint8 + Maxtxpkt uint32 + Maxrxpkt uint32 + Speed_hi uint16 + Eth_tp_mdix uint8 + Reserved2 uint8 + Lp_advertising uint32 + Reserved [2]uint32 +} + +// CmdGet returns the interface settings in the receiver struct +// and returns speed +func (ecmd *EthtoolCmd) CmdGet(intf string) (uint32, error) { + e, err := NewEthtool() + if err != nil { + return 0, err + } + defer e.Close() + return e.CmdGet(ecmd, intf) +} + +// CmdSet sets and returns the settings in the receiver struct +// and returns speed +func (ecmd *EthtoolCmd) CmdSet(intf string) (uint32, error) { + e, err := NewEthtool() + if err != nil { + return 0, err + } + defer e.Close() + return e.CmdSet(ecmd, intf) +} + +func (f *EthtoolCmd) reflect(retv *map[string]uint64) { + val := reflect.ValueOf(f).Elem() + + for i := 0; i < val.NumField(); i++ { + valueField := val.Field(i) + typeField := val.Type().Field(i) + + t := valueField.Interface() + // tt := reflect.TypeOf(t) + // fmt.Printf(" t %T %v tt %T %v\n", t, t, tt, tt) + switch tt := t.(type) { + case uint32: + // fmt.Printf(" t is uint32\n") + (*retv)[typeField.Name] = uint64(tt) + case uint16: + (*retv)[typeField.Name] = uint64(tt) + case uint8: + (*retv)[typeField.Name] = uint64(tt) + case int32: + (*retv)[typeField.Name] = uint64(tt) + case int16: + (*retv)[typeField.Name] = uint64(tt) + case int8: + (*retv)[typeField.Name] = uint64(tt) + default: + (*retv)[typeField.Name+"_unknown_type"] = 0 + } + + // tag := typeField.Tag + // fmt.Printf("Field Name: %s,\t Field Value: %v,\t Tag Value: %s\n", + // typeField.Name, valueField.Interface(), tag.Get("tag_name")) + } +} + +// CmdGet returns the interface settings in the receiver struct +// and returns speed +func (e *Ethtool) CmdGet(ecmd *EthtoolCmd, intf string) (uint32, error) { + ecmd.Cmd = ETHTOOL_GSET + + var name [IFNAMSIZ]byte + copy(name[:], []byte(intf)) + + ifr := ifreq{ + ifr_name: name, + ifr_data: uintptr(unsafe.Pointer(ecmd)), + } + + _, _, ep := unix.Syscall(unix.SYS_IOCTL, uintptr(e.fd), + SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr))) + if ep != 0 { + return 0, ep + } + + var speedval uint32 = (uint32(ecmd.Speed_hi) << 16) | + (uint32(ecmd.Speed) & 0xffff) + if speedval == math.MaxUint16 { + speedval = math.MaxUint32 + } + + return speedval, nil +} + +// CmdSet sets and returns the settings in the receiver struct +// and returns speed +func (e *Ethtool) CmdSet(ecmd *EthtoolCmd, intf string) (uint32, error) { + ecmd.Cmd = ETHTOOL_SSET + + var name [IFNAMSIZ]byte + copy(name[:], []byte(intf)) + + ifr := ifreq{ + ifr_name: name, + ifr_data: uintptr(unsafe.Pointer(ecmd)), + } + + _, _, ep := unix.Syscall(unix.SYS_IOCTL, uintptr(e.fd), + SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr))) + if ep != 0 { + return 0, unix.Errno(ep) + } + + var speedval uint32 = (uint32(ecmd.Speed_hi) << 16) | + (uint32(ecmd.Speed) & 0xffff) + if speedval == math.MaxUint16 { + speedval = math.MaxUint32 + } + + return speedval, nil +} + +// CmdGetMapped returns the interface settings in a map +func (e *Ethtool) CmdGetMapped(intf string) (map[string]uint64, error) { + ecmd := EthtoolCmd{ + Cmd: ETHTOOL_GSET, + } + + var name [IFNAMSIZ]byte + copy(name[:], []byte(intf)) + + ifr := ifreq{ + ifr_name: name, + ifr_data: uintptr(unsafe.Pointer(&ecmd)), + } + + _, _, ep := unix.Syscall(unix.SYS_IOCTL, uintptr(e.fd), + SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr))) + if ep != 0 { + return nil, ep + } + + result := make(map[string]uint64) + + // ref https://gist.github.com/drewolson/4771479 + // Golang Reflection Example + ecmd.reflect(&result) + + var speedval uint32 = (uint32(ecmd.Speed_hi) << 16) | + (uint32(ecmd.Speed) & 0xffff) + result["speed"] = uint64(speedval) + + return result, nil +} + +func CmdGetMapped(intf string) (map[string]uint64, error) { + e, err := NewEthtool() + if err != nil { + return nil, err + } + defer e.Close() + return e.CmdGetMapped(intf) +} diff --git a/vendor/github.com/safchain/ethtool/ethtool_msglvl.go b/vendor/github.com/safchain/ethtool/ethtool_msglvl.go new file mode 100644 index 000000000..1f6e338cf --- /dev/null +++ b/vendor/github.com/safchain/ethtool/ethtool_msglvl.go @@ -0,0 +1,114 @@ +/* + * + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + * + */ + +// Package ethtool aims to provide a library giving a simple access to the +// Linux SIOCETHTOOL ioctl operations. It can be used to retrieve informations +// from a network device like statistics, driver related informations or +// even the peer of a VETH interface. +package ethtool + +import ( + "unsafe" + + "golang.org/x/sys/unix" +) + +type ethtoolValue struct { /* ethtool.c: struct ethtool_value */ + cmd uint32 + data uint32 +} + +// MsglvlGet returns the msglvl of the given interface. +func (e *Ethtool) MsglvlGet(intf string) (uint32, error) { + edata := ethtoolValue{ + cmd: ETHTOOL_GMSGLVL, + } + + var name [IFNAMSIZ]byte + copy(name[:], []byte(intf)) + + ifr := ifreq{ + ifr_name: name, + ifr_data: uintptr(unsafe.Pointer(&edata)), + } + + _, _, ep := unix.Syscall(unix.SYS_IOCTL, uintptr(e.fd), + SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr))) + if ep != 0 { + return 0, ep + } + + return edata.data, nil +} + +// MsglvlSet returns the read-msglvl, post-set-msglvl of the given interface. +func (e *Ethtool) MsglvlSet(intf string, valset uint32) (uint32, uint32, error) { + edata := ethtoolValue{ + cmd: ETHTOOL_GMSGLVL, + } + + var name [IFNAMSIZ]byte + copy(name[:], []byte(intf)) + + ifr := ifreq{ + ifr_name: name, + ifr_data: uintptr(unsafe.Pointer(&edata)), + } + + _, _, ep := unix.Syscall(unix.SYS_IOCTL, uintptr(e.fd), + SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr))) + if ep != 0 { + return 0, 0, ep + } + + readval := edata.data + + edata.cmd = ETHTOOL_SMSGLVL + edata.data = valset + + _, _, ep = unix.Syscall(unix.SYS_IOCTL, uintptr(e.fd), + SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr))) + if ep != 0 { + return 0, 0, ep + } + + return readval, edata.data, nil +} + +// MsglvlGet returns the msglvl of the given interface. +func MsglvlGet(intf string) (uint32, error) { + e, err := NewEthtool() + if err != nil { + return 0, err + } + defer e.Close() + return e.MsglvlGet(intf) +} + +// MsglvlSet returns the read-msglvl, post-set-msglvl of the given interface. +func MsglvlSet(intf string, valset uint32) (uint32, uint32, error) { + e, err := NewEthtool() + if err != nil { + return 0, 0, err + } + defer e.Close() + return e.MsglvlSet(intf, valset) +} diff --git a/vendor/github.com/urfave/cli/v2/.flake8 b/vendor/github.com/urfave/cli/v2/.flake8 new file mode 100644 index 000000000..6deafc261 --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/.flake8 @@ -0,0 +1,2 @@ +[flake8] +max-line-length = 120 diff --git a/vendor/github.com/urfave/cli/v2/.gitignore b/vendor/github.com/urfave/cli/v2/.gitignore new file mode 100644 index 000000000..2d5e149b4 --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/.gitignore @@ -0,0 +1,7 @@ +*.coverprofile +*.orig +node_modules/ +vendor +.idea +internal/*/built-example +coverage.txt diff --git a/vendor/github.com/urfave/cli/v2/CODE_OF_CONDUCT.md b/vendor/github.com/urfave/cli/v2/CODE_OF_CONDUCT.md new file mode 100644 index 000000000..41ba294f6 --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/CODE_OF_CONDUCT.md @@ -0,0 +1,74 @@ +# Contributor Covenant Code of Conduct + +## Our Pledge + +In the interest of fostering an open and welcoming environment, we as +contributors and maintainers pledge to making participation in our project and +our community a harassment-free experience for everyone, regardless of age, body +size, disability, ethnicity, gender identity and expression, level of experience, +education, socio-economic status, nationality, personal appearance, race, +religion, or sexual identity and orientation. + +## Our Standards + +Examples of behavior that contributes to creating a positive environment +include: + +* Using welcoming and inclusive language +* Being respectful of differing viewpoints and experiences +* Gracefully accepting constructive criticism +* Focusing on what is best for the community +* Showing empathy towards other community members + +Examples of unacceptable behavior by participants include: + +* The use of sexualized language or imagery and unwelcome sexual attention or + advances +* Trolling, insulting/derogatory comments, and personal or political attacks +* Public or private harassment +* Publishing others' private information, such as a physical or electronic + address, without explicit permission +* Other conduct which could reasonably be considered inappropriate in a + professional setting + +## Our Responsibilities + +Project maintainers are responsible for clarifying the standards of acceptable +behavior and are expected to take appropriate and fair corrective action in +response to any instances of unacceptable behavior. + +Project maintainers have the right and responsibility to remove, edit, or +reject comments, commits, code, wiki edits, issues, and other contributions +that are not aligned to this Code of Conduct, or to ban temporarily or +permanently any contributor for other behaviors that they deem inappropriate, +threatening, offensive, or harmful. + +## Scope + +This Code of Conduct applies both within project spaces and in public spaces +when an individual is representing the project or its community. Examples of +representing a project or community include using an official project e-mail +address, posting via an official social media account, or acting as an appointed +representative at an online or offline event. Representation of a project may be +further defined and clarified by project maintainers. + +## Enforcement + +Instances of abusive, harassing, or otherwise unacceptable behavior may be +reported by contacting Dan Buch at dan@meatballhat.com. All complaints will be +reviewed and investigated and will result in a response that is deemed necessary +and appropriate to the circumstances. The project team is obligated to maintain +confidentiality with regard to the reporter of an incident. Further details of +specific enforcement policies may be posted separately. + +Project maintainers who do not follow or enforce the Code of Conduct in good +faith may face temporary or permanent repercussions as determined by other +members of the project's leadership. + +## Attribution + +This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, +available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html + +[homepage]: https://www.contributor-covenant.org + diff --git a/vendor/github.com/urfave/cli/v2/LICENSE b/vendor/github.com/urfave/cli/v2/LICENSE new file mode 100644 index 000000000..42a597e29 --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/LICENSE @@ -0,0 +1,21 @@ +MIT License + +Copyright (c) 2016 Jeremy Saenz & Contributors + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/vendor/github.com/urfave/cli/v2/README.md b/vendor/github.com/urfave/cli/v2/README.md new file mode 100644 index 000000000..c9237fbc6 --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/README.md @@ -0,0 +1,66 @@ +cli +=== + +[![GoDoc](https://godoc.org/github.com/urfave/cli?status.svg)](https://godoc.org/github.com/urfave/cli) +[![codebeat](https://codebeat.co/badges/0a8f30aa-f975-404b-b878-5fab3ae1cc5f)](https://codebeat.co/projects/github-com-urfave-cli) +[![Go Report Card](https://goreportcard.com/badge/urfave/cli)](https://goreportcard.com/report/urfave/cli) +[![codecov](https://codecov.io/gh/urfave/cli/branch/master/graph/badge.svg)](https://codecov.io/gh/urfave/cli) + +cli is a simple, fast, and fun package for building command line apps in Go. The +goal is to enable developers to write fast and distributable command line +applications in an expressive way. + +## Usage Documentation + +Usage documentation exists for each major version. Don't know what version you're on? You're probably using the version from the `master` branch, which is currently `v2`. + +- `v2` - [./docs/v2/manual.md](./docs/v2/manual.md) +- `v1` - [./docs/v1/manual.md](./docs/v1/manual.md) + +## Installation + +Make sure you have a working Go environment. Go version 1.11+ is supported. [See the install instructions for Go](http://golang.org/doc/install.html). + +Go Modules are strongly recommended when using this package. [See the go blog guide on using Go Modules](https://blog.golang.org/using-go-modules). + +### Using `v2` releases + +``` +$ GO111MODULE=on go get github.com/urfave/cli/v2 +``` + +```go +... +import ( + "github.com/urfave/cli/v2" // imports as package "cli" +) +... +``` + +### Using `v1` releases + +``` +$ GO111MODULE=on go get github.com/urfave/cli +``` + +```go +... +import ( + "github.com/urfave/cli" +) +... +``` + +### GOPATH + +Make sure your `PATH` includes the `$GOPATH/bin` directory so your commands can +be easily used: +``` +export PATH=$PATH:$GOPATH/bin +``` + +### Supported platforms + +cli is tested against multiple versions of Go on Linux, and against the latest +released version of Go on OS X and Windows. This project uses Github Actions for +builds. For more build info, please look at the [./.github/workflows/cli.yml](https://github.com/urfave/cli/blob/master/.github/workflows/cli.yml). diff --git a/vendor/github.com/urfave/cli/v2/app.go b/vendor/github.com/urfave/cli/v2/app.go new file mode 100644 index 000000000..d0c8f84e2 --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/app.go @@ -0,0 +1,542 @@ +package cli + +import ( + "context" + "flag" + "fmt" + "io" + "os" + "path/filepath" + "sort" + "time" +) + +var ( + changeLogURL = "https://github.com/urfave/cli/blob/master/docs/CHANGELOG.md" + appActionDeprecationURL = fmt.Sprintf("%s#deprecated-cli-app-action-signature", changeLogURL) + contactSysadmin = "This is an error in the application. Please contact the distributor of this application if this is not you." + errInvalidActionType = NewExitError("ERROR invalid Action type. "+ + fmt.Sprintf("Must be `func(*Context`)` or `func(*Context) error). %s", contactSysadmin)+ + fmt.Sprintf("See %s", appActionDeprecationURL), 2) +) + +// App is the main structure of a cli application. It is recommended that +// an app be created with the cli.NewApp() function +type App struct { + // The name of the program. Defaults to path.Base(os.Args[0]) + Name string + // Full name of command for help, defaults to Name + HelpName string + // Description of the program. + Usage string + // Text to override the USAGE section of help + UsageText string + // Description of the program argument format. + ArgsUsage string + // Version of the program + Version string + // Description of the program + Description string + // List of commands to execute + Commands []*Command + // List of flags to parse + Flags []Flag + // Boolean to enable bash completion commands + EnableBashCompletion bool + // Boolean to hide built-in help command and help flag + HideHelp bool + // Boolean to hide built-in help command but keep help flag. + // Ignored if HideHelp is true. + HideHelpCommand bool + // Boolean to hide built-in version flag and the VERSION section of help + HideVersion bool + // categories contains the categorized commands and is populated on app startup + categories CommandCategories + // An action to execute when the shell completion flag is set + BashComplete BashCompleteFunc + // An action to execute before any subcommands are run, but after the context is ready + // If a non-nil error is returned, no subcommands are run + Before BeforeFunc + // An action to execute after any subcommands are run, but after the subcommand has finished + // It is run even if Action() panics + After AfterFunc + // The action to execute when no subcommands are specified + Action ActionFunc + // Execute this function if the proper command cannot be found + CommandNotFound CommandNotFoundFunc + // Execute this function if an usage error occurs + OnUsageError OnUsageErrorFunc + // Compilation date + Compiled time.Time + // List of all authors who contributed + Authors []*Author + // Copyright of the binary if any + Copyright string + // Writer writer to write output to + Writer io.Writer + // ErrWriter writes error output + ErrWriter io.Writer + // Execute this function to handle ExitErrors. If not provided, HandleExitCoder is provided to + // function as a default, so this is optional. + ExitErrHandler ExitErrHandlerFunc + // Other custom info + Metadata map[string]interface{} + // Carries a function which returns app specific info. + ExtraInfo func() map[string]string + // CustomAppHelpTemplate the text template for app help topic. + // cli.go uses text/template to render templates. You can + // render custom help text by setting this variable. + CustomAppHelpTemplate string + // Boolean to enable short-option handling so user can combine several + // single-character bool arguments into one + // i.e. foobar -o -v -> foobar -ov + UseShortOptionHandling bool + + didSetup bool +} + +// Tries to find out when this binary was compiled. +// Returns the current time if it fails to find it. +func compileTime() time.Time { + info, err := os.Stat(os.Args[0]) + if err != nil { + return time.Now() + } + return info.ModTime() +} + +// NewApp creates a new cli Application with some reasonable defaults for Name, +// Usage, Version and Action. +func NewApp() *App { + return &App{ + Name: filepath.Base(os.Args[0]), + HelpName: filepath.Base(os.Args[0]), + Usage: "A new cli application", + UsageText: "", + BashComplete: DefaultAppComplete, + Action: helpCommand.Action, + Compiled: compileTime(), + Writer: os.Stdout, + } +} + +// Setup runs initialization code to ensure all data structures are ready for +// `Run` or inspection prior to `Run`. It is internally called by `Run`, but +// will return early if setup has already happened. +func (a *App) Setup() { + if a.didSetup { + return + } + + a.didSetup = true + + if a.Name == "" { + a.Name = filepath.Base(os.Args[0]) + } + + if a.HelpName == "" { + a.HelpName = filepath.Base(os.Args[0]) + } + + if a.Usage == "" { + a.Usage = "A new cli application" + } + + if a.Version == "" { + a.HideVersion = true + } + + if a.BashComplete == nil { + a.BashComplete = DefaultAppComplete + } + + if a.Action == nil { + a.Action = helpCommand.Action + } + + if a.Compiled == (time.Time{}) { + a.Compiled = compileTime() + } + + if a.Writer == nil { + a.Writer = os.Stdout + } + + var newCommands []*Command + + for _, c := range a.Commands { + if c.HelpName == "" { + c.HelpName = fmt.Sprintf("%s %s", a.HelpName, c.Name) + } + newCommands = append(newCommands, c) + } + a.Commands = newCommands + + if a.Command(helpCommand.Name) == nil && !a.HideHelp { + if !a.HideHelpCommand { + a.appendCommand(helpCommand) + } + + if HelpFlag != nil { + a.appendFlag(HelpFlag) + } + } + + if !a.HideVersion { + a.appendFlag(VersionFlag) + } + + a.categories = newCommandCategories() + for _, command := range a.Commands { + a.categories.AddCommand(command.Category, command) + } + sort.Sort(a.categories.(*commandCategories)) + + if a.Metadata == nil { + a.Metadata = make(map[string]interface{}) + } + + if a.Writer == nil { + a.Writer = os.Stdout + } +} + +func (a *App) newFlagSet() (*flag.FlagSet, error) { + return flagSet(a.Name, a.Flags) +} + +func (a *App) useShortOptionHandling() bool { + return a.UseShortOptionHandling +} + +// Run is the entry point to the cli app. Parses the arguments slice and routes +// to the proper flag/args combination +func (a *App) Run(arguments []string) (err error) { + return a.RunContext(context.Background(), arguments) +} + +// RunContext is like Run except it takes a Context that will be +// passed to its commands and sub-commands. Through this, you can +// propagate timeouts and cancellation requests +func (a *App) RunContext(ctx context.Context, arguments []string) (err error) { + a.Setup() + + // handle the completion flag separately from the flagset since + // completion could be attempted after a flag, but before its value was put + // on the command line. this causes the flagset to interpret the completion + // flag name as the value of the flag before it which is undesirable + // note that we can only do this because the shell autocomplete function + // always appends the completion flag at the end of the command + shellComplete, arguments := checkShellCompleteFlag(a, arguments) + + set, err := a.newFlagSet() + if err != nil { + return err + } + + err = parseIter(set, a, arguments[1:], shellComplete) + nerr := normalizeFlags(a.Flags, set) + context := NewContext(a, set, &Context{Context: ctx}) + if nerr != nil { + _, _ = fmt.Fprintln(a.Writer, nerr) + _ = ShowAppHelp(context) + return nerr + } + context.shellComplete = shellComplete + + if checkCompletions(context) { + return nil + } + + if err != nil { + if a.OnUsageError != nil { + err := a.OnUsageError(context, err, false) + a.handleExitCoder(context, err) + return err + } + _, _ = fmt.Fprintf(a.Writer, "%s %s\n\n", "Incorrect Usage.", err.Error()) + _ = ShowAppHelp(context) + return err + } + + if !a.HideHelp && checkHelp(context) { + _ = ShowAppHelp(context) + return nil + } + + if !a.HideVersion && checkVersion(context) { + ShowVersion(context) + return nil + } + + cerr := checkRequiredFlags(a.Flags, context) + if cerr != nil { + _ = ShowAppHelp(context) + return cerr + } + + if a.After != nil { + defer func() { + if afterErr := a.After(context); afterErr != nil { + if err != nil { + err = newMultiError(err, afterErr) + } else { + err = afterErr + } + } + }() + } + + if a.Before != nil { + beforeErr := a.Before(context) + if beforeErr != nil { + _, _ = fmt.Fprintf(a.Writer, "%v\n\n", beforeErr) + _ = ShowAppHelp(context) + a.handleExitCoder(context, beforeErr) + err = beforeErr + return err + } + } + + args := context.Args() + if args.Present() { + name := args.First() + c := a.Command(name) + if c != nil { + return c.Run(context) + } + } + + if a.Action == nil { + a.Action = helpCommand.Action + } + + // Run default Action + err = a.Action(context) + + a.handleExitCoder(context, err) + return err +} + +// RunAndExitOnError calls .Run() and exits non-zero if an error was returned +// +// Deprecated: instead you should return an error that fulfills cli.ExitCoder +// to cli.App.Run. This will cause the application to exit with the given eror +// code in the cli.ExitCoder +func (a *App) RunAndExitOnError() { + if err := a.Run(os.Args); err != nil { + _, _ = fmt.Fprintln(a.errWriter(), err) + OsExiter(1) + } +} + +// RunAsSubcommand invokes the subcommand given the context, parses ctx.Args() to +// generate command-specific flags +func (a *App) RunAsSubcommand(ctx *Context) (err error) { + // Setup also handles HideHelp and HideHelpCommand + a.Setup() + + var newCmds []*Command + for _, c := range a.Commands { + if c.HelpName == "" { + c.HelpName = fmt.Sprintf("%s %s", a.HelpName, c.Name) + } + newCmds = append(newCmds, c) + } + a.Commands = newCmds + + set, err := a.newFlagSet() + if err != nil { + return err + } + + err = parseIter(set, a, ctx.Args().Tail(), ctx.shellComplete) + nerr := normalizeFlags(a.Flags, set) + context := NewContext(a, set, ctx) + + if nerr != nil { + _, _ = fmt.Fprintln(a.Writer, nerr) + _, _ = fmt.Fprintln(a.Writer) + if len(a.Commands) > 0 { + _ = ShowSubcommandHelp(context) + } else { + _ = ShowCommandHelp(ctx, context.Args().First()) + } + return nerr + } + + if checkCompletions(context) { + return nil + } + + if err != nil { + if a.OnUsageError != nil { + err = a.OnUsageError(context, err, true) + a.handleExitCoder(context, err) + return err + } + _, _ = fmt.Fprintf(a.Writer, "%s %s\n\n", "Incorrect Usage.", err.Error()) + _ = ShowSubcommandHelp(context) + return err + } + + if len(a.Commands) > 0 { + if checkSubcommandHelp(context) { + return nil + } + } else { + if checkCommandHelp(ctx, context.Args().First()) { + return nil + } + } + + cerr := checkRequiredFlags(a.Flags, context) + if cerr != nil { + _ = ShowSubcommandHelp(context) + return cerr + } + + if a.After != nil { + defer func() { + afterErr := a.After(context) + if afterErr != nil { + a.handleExitCoder(context, err) + if err != nil { + err = newMultiError(err, afterErr) + } else { + err = afterErr + } + } + }() + } + + if a.Before != nil { + beforeErr := a.Before(context) + if beforeErr != nil { + a.handleExitCoder(context, beforeErr) + err = beforeErr + return err + } + } + + args := context.Args() + if args.Present() { + name := args.First() + c := a.Command(name) + if c != nil { + return c.Run(context) + } + } + + // Run default Action + err = a.Action(context) + + a.handleExitCoder(context, err) + return err +} + +// Command returns the named command on App. Returns nil if the command does not exist +func (a *App) Command(name string) *Command { + for _, c := range a.Commands { + if c.HasName(name) { + return c + } + } + + return nil +} + +// VisibleCategories returns a slice of categories and commands that are +// Hidden=false +func (a *App) VisibleCategories() []CommandCategory { + ret := []CommandCategory{} + for _, category := range a.categories.Categories() { + if visible := func() CommandCategory { + if len(category.VisibleCommands()) > 0 { + return category + } + return nil + }(); visible != nil { + ret = append(ret, visible) + } + } + return ret +} + +// VisibleCommands returns a slice of the Commands with Hidden=false +func (a *App) VisibleCommands() []*Command { + var ret []*Command + for _, command := range a.Commands { + if !command.Hidden { + ret = append(ret, command) + } + } + return ret +} + +// VisibleFlags returns a slice of the Flags with Hidden=false +func (a *App) VisibleFlags() []Flag { + return visibleFlags(a.Flags) +} + +func (a *App) errWriter() io.Writer { + // When the app ErrWriter is nil use the package level one. + if a.ErrWriter == nil { + return ErrWriter + } + + return a.ErrWriter +} + +func (a *App) appendFlag(fl Flag) { + if !hasFlag(a.Flags, fl) { + a.Flags = append(a.Flags, fl) + } +} + +func (a *App) appendCommand(c *Command) { + if !hasCommand(a.Commands, c) { + a.Commands = append(a.Commands, c) + } +} + +func (a *App) handleExitCoder(context *Context, err error) { + if a.ExitErrHandler != nil { + a.ExitErrHandler(context, err) + } else { + HandleExitCoder(err) + } +} + +// Author represents someone who has contributed to a cli project. +type Author struct { + Name string // The Authors name + Email string // The Authors email +} + +// String makes Author comply to the Stringer interface, to allow an easy print in the templating process +func (a *Author) String() string { + e := "" + if a.Email != "" { + e = " <" + a.Email + ">" + } + + return fmt.Sprintf("%v%v", a.Name, e) +} + +// HandleAction attempts to figure out which Action signature was used. If +// it's an ActionFunc or a func with the legacy signature for Action, the func +// is run! +func HandleAction(action interface{}, context *Context) (err error) { + switch a := action.(type) { + case ActionFunc: + return a(context) + case func(*Context) error: + return a(context) + case func(*Context): // deprecated function signature + a(context) + return nil + } + + return errInvalidActionType +} diff --git a/vendor/github.com/urfave/cli/v2/args.go b/vendor/github.com/urfave/cli/v2/args.go new file mode 100644 index 000000000..bd65c17bd --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/args.go @@ -0,0 +1,54 @@ +package cli + +type Args interface { + // Get returns the nth argument, or else a blank string + Get(n int) string + // First returns the first argument, or else a blank string + First() string + // Tail returns the rest of the arguments (not the first one) + // or else an empty string slice + Tail() []string + // Len returns the length of the wrapped slice + Len() int + // Present checks if there are any arguments present + Present() bool + // Slice returns a copy of the internal slice + Slice() []string +} + +type args []string + +func (a *args) Get(n int) string { + if len(*a) > n { + return (*a)[n] + } + return "" +} + +func (a *args) First() string { + return a.Get(0) +} + +func (a *args) Tail() []string { + if a.Len() >= 2 { + tail := []string((*a)[1:]) + ret := make([]string, len(tail)) + copy(ret, tail) + return ret + } + return []string{} +} + +func (a *args) Len() int { + return len(*a) +} + +func (a *args) Present() bool { + return a.Len() != 0 +} + +func (a *args) Slice() []string { + ret := make([]string, len(*a)) + copy(ret, *a) + return ret +} diff --git a/vendor/github.com/urfave/cli/v2/category.go b/vendor/github.com/urfave/cli/v2/category.go new file mode 100644 index 000000000..867e3908c --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/category.go @@ -0,0 +1,79 @@ +package cli + +// CommandCategories interface allows for category manipulation +type CommandCategories interface { + // AddCommand adds a command to a category, creating a new category if necessary. + AddCommand(category string, command *Command) + // categories returns a copy of the category slice + Categories() []CommandCategory +} + +type commandCategories []*commandCategory + +func newCommandCategories() CommandCategories { + ret := commandCategories([]*commandCategory{}) + return &ret +} + +func (c *commandCategories) Less(i, j int) bool { + return lexicographicLess((*c)[i].Name(), (*c)[j].Name()) +} + +func (c *commandCategories) Len() int { + return len(*c) +} + +func (c *commandCategories) Swap(i, j int) { + (*c)[i], (*c)[j] = (*c)[j], (*c)[i] +} + +func (c *commandCategories) AddCommand(category string, command *Command) { + for _, commandCategory := range []*commandCategory(*c) { + if commandCategory.name == category { + commandCategory.commands = append(commandCategory.commands, command) + return + } + } + newVal := append(*c, + &commandCategory{name: category, commands: []*Command{command}}) + *c = newVal +} + +func (c *commandCategories) Categories() []CommandCategory { + ret := make([]CommandCategory, len(*c)) + for i, cat := range *c { + ret[i] = cat + } + return ret +} + +// CommandCategory is a category containing commands. +type CommandCategory interface { + // Name returns the category name string + Name() string + // VisibleCommands returns a slice of the Commands with Hidden=false + VisibleCommands() []*Command +} + +type commandCategory struct { + name string + commands []*Command +} + +func (c *commandCategory) Name() string { + return c.name +} + +func (c *commandCategory) VisibleCommands() []*Command { + if c.commands == nil { + c.commands = []*Command{} + } + + var ret []*Command + for _, command := range c.commands { + if !command.Hidden { + ret = append(ret, command) + } + } + return ret +} diff --git a/vendor/github.com/urfave/cli/v2/cli.go b/vendor/github.com/urfave/cli/v2/cli.go new file mode 100644 index 000000000..62a5bc22d --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/cli.go @@ -0,0 +1,23 @@ +// Package cli provides a minimal framework for creating and organizing command line +// Go applications. cli is designed to be easy to understand and write, the most simple +// cli application can be written as follows: +// func main() { +// (&cli.App{}).Run(os.Args) +// } +// +// Of course this application does not do much, so let's make this an actual application: +// func main() { +// app := &cli.App{ +// Name: "greet", +// Usage: "say a greeting", +// Action: func(c *cli.Context) error { +// fmt.Println("Greetings") +// return nil +// }, +// } +// +// app.Run(os.Args) +// } +package cli + +//go:generate go run flag-gen/main.go flag-gen/assets_vfsdata.go diff --git a/vendor/github.com/urfave/cli/v2/command.go b/vendor/github.com/urfave/cli/v2/command.go new file mode 100644 index 000000000..95840f32e --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/command.go @@ -0,0 +1,301 @@ +package cli + +import ( + "flag" + "fmt" + "sort" + "strings" +) + +// Command is a subcommand for a cli.App. +type Command struct { + // The name of the command + Name string + // A list of aliases for the command + Aliases []string + // A short description of the usage of this command + Usage string + // Custom text to show on USAGE section of help + UsageText string + // A longer explanation of how the command works + Description string + // A short description of the arguments of this command + ArgsUsage string + // The category the command is part of + Category string + // The function to call when checking for bash command completions + BashComplete BashCompleteFunc + // An action to execute before any sub-subcommands are run, but after the context is ready + // If a non-nil error is returned, no sub-subcommands are run + Before BeforeFunc + // An action to execute after any subcommands are run, but after the subcommand has finished + // It is run even if Action() panics + After AfterFunc + // The function to call when this command is invoked + Action ActionFunc + // Execute this function if a usage error occurs. + OnUsageError OnUsageErrorFunc + // List of child commands + Subcommands []*Command + // List of flags to parse + Flags []Flag + // Treat all flags as normal arguments if true + SkipFlagParsing bool + // Boolean to hide built-in help command and help flag + HideHelp bool + // Boolean to hide built-in help command but keep help flag + // Ignored if HideHelp is true. + HideHelpCommand bool + // Boolean to hide this command from help or completion + Hidden bool + // Boolean to enable short-option handling so user can combine several + // single-character bool arguments into one + // i.e. foobar -o -v -> foobar -ov + UseShortOptionHandling bool + + // Full name of command for help, defaults to full command name, including parent commands. + HelpName string + commandNamePath []string + + // CustomHelpTemplate the text template for the command help topic. + // cli.go uses text/template to render templates. You can + // render custom help text by setting this variable. + CustomHelpTemplate string +} + +type Commands []*Command + +type CommandsByName []*Command + +func (c CommandsByName) Len() int { + return len(c) +} + +func (c CommandsByName) Less(i, j int) bool { + return lexicographicLess(c[i].Name, c[j].Name) +} + +func (c CommandsByName) Swap(i, j int) { + c[i], c[j] = c[j], c[i] +} + +// FullName returns the full name of the command. +// For subcommands this ensures that parent commands are part of the command path +func (c *Command) FullName() string { + if c.commandNamePath == nil { + return c.Name + } + return strings.Join(c.commandNamePath, " ") +} + +// Run invokes the command given the context, parses ctx.Args() to generate command-specific flags +func (c *Command) Run(ctx *Context) (err error) { + if len(c.Subcommands) > 0 { + return c.startApp(ctx) + } + + if !c.HideHelp && HelpFlag != nil { + // append help to flags + c.appendFlag(HelpFlag) + } + + if ctx.App.UseShortOptionHandling { + c.UseShortOptionHandling = true + } + + set, err := c.parseFlags(ctx.Args(), ctx.shellComplete) + + context := NewContext(ctx.App, set, ctx) + context.Command = c + if checkCommandCompletions(context, c.Name) { + return nil + } + + if err != nil { + if c.OnUsageError != nil { + err = c.OnUsageError(context, err, false) + context.App.handleExitCoder(context, err) + return err + } + _, _ = fmt.Fprintln(context.App.Writer, "Incorrect Usage:", err.Error()) + _, _ = fmt.Fprintln(context.App.Writer) + _ = ShowCommandHelp(context, c.Name) + return err + } + + if checkCommandHelp(context, c.Name) { + return nil + } + + cerr := checkRequiredFlags(c.Flags, context) + if cerr != nil { + _ = ShowCommandHelp(context, c.Name) + return cerr + } + + if c.After != nil { + defer func() { + afterErr := c.After(context) + if afterErr != nil { + context.App.handleExitCoder(context, err) + if err != nil { + err = newMultiError(err, afterErr) + } else { + err = afterErr + } + } + }() + } + + if c.Before != nil { + err = c.Before(context) + if err != nil { + _ = ShowCommandHelp(context, c.Name) + context.App.handleExitCoder(context, err) + return err + } + } + + if c.Action == nil { + c.Action = helpSubcommand.Action + } + + context.Command = c + err = c.Action(context) + + if err != nil { + context.App.handleExitCoder(context, err) + } + return err +} + +func (c *Command) newFlagSet() (*flag.FlagSet, error) { + return flagSet(c.Name, c.Flags) +} + +func (c *Command) useShortOptionHandling() bool { + return c.UseShortOptionHandling +} + +func (c *Command) parseFlags(args Args, shellComplete bool) (*flag.FlagSet, error) { + set, err := c.newFlagSet() + if err != nil { + return nil, err + } + + if c.SkipFlagParsing { + return set, set.Parse(append([]string{"--"}, args.Tail()...)) + } + + err = parseIter(set, c, args.Tail(), shellComplete) + if err != nil { + return nil, err + } + + err = normalizeFlags(c.Flags, set) + if err != nil { + return nil, err + } + + return set, nil +} + +// Names returns the names including short names and aliases. +func (c *Command) Names() []string { + return append([]string{c.Name}, c.Aliases...) +} + +// HasName returns true if Command.Name matches given name +func (c *Command) HasName(name string) bool { + for _, n := range c.Names() { + if n == name { + return true + } + } + return false +} + +func (c *Command) startApp(ctx *Context) error { + app := &App{ + Metadata: ctx.App.Metadata, + Name: fmt.Sprintf("%s %s", ctx.App.Name, c.Name), + } + + if c.HelpName == "" { + app.HelpName = c.HelpName + } else { + app.HelpName = app.Name + } + + app.Usage = c.Usage + app.Description = c.Description + app.ArgsUsage = c.ArgsUsage + + // set CommandNotFound + app.CommandNotFound = ctx.App.CommandNotFound + app.CustomAppHelpTemplate = c.CustomHelpTemplate + + // set the flags and commands + app.Commands = c.Subcommands + app.Flags = c.Flags + app.HideHelp = c.HideHelp + app.HideHelpCommand = c.HideHelpCommand + + app.Version = ctx.App.Version + app.HideVersion = ctx.App.HideVersion + app.Compiled = ctx.App.Compiled + app.Writer = ctx.App.Writer + app.ErrWriter = ctx.App.ErrWriter + app.ExitErrHandler = ctx.App.ExitErrHandler + app.UseShortOptionHandling = ctx.App.UseShortOptionHandling + + app.categories = newCommandCategories() + for _, command := range c.Subcommands { + app.categories.AddCommand(command.Category, command) + } + + sort.Sort(app.categories.(*commandCategories)) + + // bash completion + app.EnableBashCompletion = ctx.App.EnableBashCompletion + if c.BashComplete != nil { + app.BashComplete = c.BashComplete + } + + // set the actions + app.Before = c.Before + app.After = c.After + if c.Action != nil { + app.Action = c.Action + } else { + app.Action = helpSubcommand.Action + } + app.OnUsageError = c.OnUsageError + + for index, cc := range app.Commands { + app.Commands[index].commandNamePath = []string{c.Name, cc.Name} + } + + return app.RunAsSubcommand(ctx) +} + +// VisibleFlags returns a slice of the Flags with Hidden=false +func (c *Command) VisibleFlags() []Flag { + return visibleFlags(c.Flags) +} + +func (c *Command) appendFlag(fl Flag) { + if !hasFlag(c.Flags, fl) { + c.Flags = append(c.Flags, fl) + } +} + +func hasCommand(commands []*Command, command *Command) bool { + for _, existing := range commands { + if command == existing { + return true + } + } + + return false +} diff --git a/vendor/github.com/urfave/cli/v2/context.go b/vendor/github.com/urfave/cli/v2/context.go new file mode 100644 index 000000000..74ed51912 --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/context.go @@ -0,0 +1,273 @@ +package cli + +import ( + "context" + "errors" + "flag" + "fmt" + "strings" +) + +// Context is a type that is passed through to +// each Handler action in a cli application. Context +// can be used to retrieve context-specific args and +// parsed command-line options. +type Context struct { + context.Context + App *App + Command *Command + shellComplete bool + flagSet *flag.FlagSet + parentContext *Context +} + +// NewContext creates a new context. For use in when invoking an App or Command action. +func NewContext(app *App, set *flag.FlagSet, parentCtx *Context) *Context { + c := &Context{App: app, flagSet: set, parentContext: parentCtx} + if parentCtx != nil { + c.Context = parentCtx.Context + c.shellComplete = parentCtx.shellComplete + if parentCtx.flagSet == nil { + parentCtx.flagSet = &flag.FlagSet{} + } + } + + c.Command = &Command{} + + if c.Context == nil { + c.Context = context.Background() + } + + return c +} + +// NumFlags returns the number of flags set +func (c *Context) NumFlags() int { + return c.flagSet.NFlag() +} + +// Set sets a context flag to a value. +func (c *Context) Set(name, value string) error { + return c.flagSet.Set(name, value) +} + +// IsSet determines if the flag was actually set +func (c *Context) IsSet(name string) bool { + if fs := lookupFlagSet(name, c); fs != nil { + if fs := lookupFlagSet(name, c); fs != nil { + isSet := false + fs.Visit(func(f *flag.Flag) { + if f.Name == name { + isSet = true + } + }) + if isSet { + return true + } + } + + f := lookupFlag(name, c) + if f == nil { + return false + } + + return f.IsSet() + } + + return false +} + +// LocalFlagNames returns a slice of flag names used in this context. +func (c *Context) LocalFlagNames() []string { + var names []string + c.flagSet.Visit(makeFlagNameVisitor(&names)) + return names +} + +// FlagNames returns a slice of flag names used by the this context and all of +// its parent contexts. +func (c *Context) FlagNames() []string { + var names []string + for _, ctx := range c.Lineage() { + ctx.flagSet.Visit(makeFlagNameVisitor(&names)) + } + return names +} + +// Lineage returns *this* context and all of its ancestor contexts in order from +// child to parent +func (c *Context) Lineage() []*Context { + var lineage []*Context + + for cur := c; cur != nil; cur = cur.parentContext { + lineage = append(lineage, cur) + } + + return lineage +} + +// Value returns the value of the flag corresponding to `name` +func (c *Context) Value(name string) interface{} { + return c.flagSet.Lookup(name).Value.(flag.Getter).Get() +} + +// Args returns the command line arguments associated with the context. +func (c *Context) Args() Args { + ret := args(c.flagSet.Args()) + return &ret +} + +// NArg returns the number of the command line arguments. +func (c *Context) NArg() int { + return c.Args().Len() +} + +func lookupFlag(name string, ctx *Context) Flag { + for _, c := range ctx.Lineage() { + if c.Command == nil { + continue + } + + for _, f := range c.Command.Flags { + for _, n := range f.Names() { + if n == name { + return f + } + } + } + } + + if ctx.App != nil { + for _, f := range ctx.App.Flags { + for _, n := range f.Names() { + if n == name { + return f + } + } + } + } + + return nil +} + +func lookupFlagSet(name string, ctx *Context) *flag.FlagSet { + for _, c := range ctx.Lineage() { + if f := c.flagSet.Lookup(name); f != nil { + return c.flagSet + } + } + + return nil +} + +func copyFlag(name string, ff *flag.Flag, set *flag.FlagSet) { + switch ff.Value.(type) { + case Serializer: + _ = set.Set(name, ff.Value.(Serializer).Serialize()) + default: + _ = set.Set(name, ff.Value.String()) + } +} + +func normalizeFlags(flags []Flag, set *flag.FlagSet) error { + visited := make(map[string]bool) + set.Visit(func(f *flag.Flag) { + visited[f.Name] = true + }) + for _, f := range flags { + parts := f.Names() + if len(parts) == 1 { + continue + } + var ff *flag.Flag + for _, name := range parts { + name = strings.Trim(name, " ") + if visited[name] { + if ff != nil { + return errors.New("Cannot use two forms of the same flag: " + name + " " + ff.Name) + } + ff = set.Lookup(name) + } + } + if ff == nil { + continue + } + for _, name := range parts { + name = strings.Trim(name, " ") + if !visited[name] { + copyFlag(name, ff, set) + } + } + } + return nil +} + +func makeFlagNameVisitor(names *[]string) func(*flag.Flag) { + return func(f *flag.Flag) { + nameParts := strings.Split(f.Name, ",") + name := strings.TrimSpace(nameParts[0]) + + for _, part := range nameParts { + part = strings.TrimSpace(part) + if len(part) > len(name) { + name = part + } + } + + if name != "" { + *names = append(*names, name) + } + } +} + +type requiredFlagsErr interface { + error + getMissingFlags() []string +} + +type errRequiredFlags struct { + missingFlags []string +} + +func (e *errRequiredFlags) Error() string { + numberOfMissingFlags := len(e.missingFlags) + if numberOfMissingFlags == 1 { + return fmt.Sprintf("Required flag %q not set", e.missingFlags[0]) + } + joinedMissingFlags := strings.Join(e.missingFlags, ", ") + return fmt.Sprintf("Required flags %q not set", joinedMissingFlags) +} + +func (e *errRequiredFlags) getMissingFlags() []string { + return e.missingFlags +} + +func checkRequiredFlags(flags []Flag, context *Context) requiredFlagsErr { + var missingFlags []string + for _, f := range flags { + if rf, ok := f.(RequiredFlag); ok && rf.IsRequired() { + var flagPresent bool + var flagName string + + for _, key := range f.Names() { + if len(key) > 1 { + flagName = key + } + + if context.IsSet(strings.TrimSpace(key)) { + flagPresent = true + } + } + + if !flagPresent && flagName != "" { + missingFlags = append(missingFlags, flagName) + } + } + } + + if len(missingFlags) != 0 { + return &errRequiredFlags{missingFlags: missingFlags} + } + + return nil +} diff --git a/vendor/github.com/urfave/cli/v2/docs.go b/vendor/github.com/urfave/cli/v2/docs.go new file mode 100644 index 000000000..dc16fc82d --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/docs.go @@ -0,0 +1,148 @@ +package cli + +import ( + "bytes" + "fmt" + "io" + "sort" + "strings" + "text/template" + + "github.com/cpuguy83/go-md2man/v2/md2man" +) + +// ToMarkdown creates a markdown string for the `*App` +// The function errors if either parsing or writing of the string fails. +func (a *App) ToMarkdown() (string, error) { + var w bytes.Buffer + if err := a.writeDocTemplate(&w); err != nil { + return "", err + } + return w.String(), nil +} + +// ToMan creates a man page string for the `*App` +// The function errors if either parsing or writing of the string fails. +func (a *App) ToMan() (string, error) { + var w bytes.Buffer + if err := a.writeDocTemplate(&w); err != nil { + return "", err + } + man := md2man.Render(w.Bytes()) + return string(man), nil +} + +type cliTemplate struct { + App *App + Commands []string + GlobalArgs []string + SynopsisArgs []string +} + +func (a *App) writeDocTemplate(w io.Writer) error { + const name = "cli" + t, err := template.New(name).Parse(MarkdownDocTemplate) + if err != nil { + return err + } + return t.ExecuteTemplate(w, name, &cliTemplate{ + App: a, + Commands: prepareCommands(a.Commands, 0), + GlobalArgs: prepareArgsWithValues(a.VisibleFlags()), + SynopsisArgs: prepareArgsSynopsis(a.VisibleFlags()), + }) +} + +func prepareCommands(commands []*Command, level int) []string { + var coms []string + for _, command := range commands { + if command.Hidden { + continue + } + usage := "" + if command.Usage != "" { + usage = command.Usage + } + + prepared := fmt.Sprintf("%s %s\n\n%s\n", + strings.Repeat("#", level+2), + strings.Join(command.Names(), ", "), + usage, + ) + + flags := prepareArgsWithValues(command.Flags) + if len(flags) > 0 { + prepared += fmt.Sprintf("\n%s", strings.Join(flags, "\n")) + } + + coms = append(coms, prepared) + + // recursevly iterate subcommands + if len(command.Subcommands) > 0 { + coms = append( + coms, + prepareCommands(command.Subcommands, level+1)..., + ) + } + } + + return coms +} + +func prepareArgsWithValues(flags []Flag) []string { + return prepareFlags(flags, ", ", "**", "**", `""`, true) +} + +func prepareArgsSynopsis(flags []Flag) []string { + return prepareFlags(flags, "|", "[", "]", "[value]", false) +} + +func prepareFlags( + flags []Flag, + sep, opener, closer, value string, + addDetails bool, +) []string { + args := []string{} + for _, f := range flags { + flag, ok := f.(DocGenerationFlag) + if !ok { + continue + } + modifiedArg := opener + + for _, s := range flag.Names() { + trimmed := strings.TrimSpace(s) + if len(modifiedArg) > len(opener) { + modifiedArg += sep + } + if len(trimmed) > 1 { + modifiedArg += fmt.Sprintf("--%s", trimmed) + } else { + modifiedArg += fmt.Sprintf("-%s", trimmed) + } + } + modifiedArg += closer + if flag.TakesValue() { + modifiedArg += fmt.Sprintf("=%s", value) + } + + if addDetails { + modifiedArg += flagDetails(flag) + } + + args = append(args, modifiedArg+"\n") + + } + sort.Strings(args) + return args +} + +// flagDetails returns a string containing the flags metadata +func flagDetails(flag DocGenerationFlag) string { + description := flag.GetUsage() + value := flag.GetValue() + if value != "" { + description += " (default: " + value + ")" + } + return ": " + description +} diff --git a/vendor/github.com/urfave/cli/v2/errors.go b/vendor/github.com/urfave/cli/v2/errors.go new file mode 100644 index 000000000..344b4361e --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/errors.go @@ -0,0 +1,131 @@ +package cli + +import ( + "fmt" + "io" + "os" + "strings" +) + +// OsExiter is the function used when the app exits. If not set defaults to os.Exit. +var OsExiter = os.Exit + +// ErrWriter is used to write errors to the user. This can be anything +// implementing the io.Writer interface and defaults to os.Stderr. +var ErrWriter io.Writer = os.Stderr + +// MultiError is an error that wraps multiple errors. +type MultiError interface { + error + // Errors returns a copy of the errors slice + Errors() []error +} + +// NewMultiError creates a new MultiError. Pass in one or more errors. +func newMultiError(err ...error) MultiError { + ret := multiError(err) + return &ret +} + +type multiError []error + +// Error implements the error interface. +func (m *multiError) Error() string { + errs := make([]string, len(*m)) + for i, err := range *m { + errs[i] = err.Error() + } + + return strings.Join(errs, "\n") +} + +// Errors returns a copy of the errors slice +func (m *multiError) Errors() []error { + errs := make([]error, len(*m)) + for _, err := range *m { + errs = append(errs, err) + } + return errs +} + +// ErrorFormatter is the interface that will suitably format the error output +type ErrorFormatter interface { + Format(s fmt.State, verb rune) +} + +// ExitCoder is the interface checked by `App` and `Command` for a custom exit +// code +type ExitCoder interface { + error + ExitCode() int +} + +type exitError struct { + exitCode int + message interface{} +} + +// NewExitError makes a new *exitError +func NewExitError(message interface{}, exitCode int) ExitCoder { + return Exit(message, exitCode) +} + +// Exit wraps a message and exit code into an ExitCoder suitable for handling by +// HandleExitCoder +func Exit(message interface{}, exitCode int) ExitCoder { + return &exitError{ + message: message, + exitCode: exitCode, + } +} + +func (ee *exitError) Error() string { + return fmt.Sprintf("%v", ee.message) +} + +func (ee *exitError) ExitCode() int { + return ee.exitCode +} + +// HandleExitCoder checks if the error fulfills the ExitCoder interface, and if +// so prints the error to stderr (if it is non-empty) and calls OsExiter with the +// given exit code. If the given error is a MultiError, then this func is +// called on all members of the Errors slice and calls OsExiter with the last exit code. +func HandleExitCoder(err error) { + if err == nil { + return + } + + if exitErr, ok := err.(ExitCoder); ok { + if err.Error() != "" { + if _, ok := exitErr.(ErrorFormatter); ok { + _, _ = fmt.Fprintf(ErrWriter, "%+v\n", err) + } else { + _, _ = fmt.Fprintln(ErrWriter, err) + } + } + OsExiter(exitErr.ExitCode()) + return + } + + if multiErr, ok := err.(MultiError); ok { + code := handleMultiError(multiErr) + OsExiter(code) + return + } +} + +func handleMultiError(multiErr MultiError) int { + code := 1 + for _, merr := range multiErr.Errors() { + if multiErr2, ok := merr.(MultiError); ok { + code = handleMultiError(multiErr2) + } else if merr != nil { + fmt.Fprintln(ErrWriter, merr) + if exitErr, ok := merr.(ExitCoder); ok { + code = exitErr.ExitCode() + } + } + } + return code +} diff --git a/vendor/github.com/urfave/cli/v2/fish.go b/vendor/github.com/urfave/cli/v2/fish.go new file mode 100644 index 000000000..67122c9fe --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/fish.go @@ -0,0 +1,192 @@ +package cli + +import ( + "bytes" + "fmt" + "io" + "strings" + "text/template" +) + +// ToFishCompletion creates a fish completion string for the `*App` +// The function errors if either parsing or writing of the string fails. +func (a *App) ToFishCompletion() (string, error) { + var w bytes.Buffer + if err := a.writeFishCompletionTemplate(&w); err != nil { + return "", err + } + return w.String(), nil +} + +type fishCompletionTemplate struct { + App *App + Completions []string + AllCommands []string +} + +func (a *App) writeFishCompletionTemplate(w io.Writer) error { + const name = "cli" + t, err := template.New(name).Parse(FishCompletionTemplate) + if err != nil { + return err + } + allCommands := []string{} + + // Add global flags + completions := a.prepareFishFlags(a.VisibleFlags(), allCommands) + + // Add help flag + if !a.HideHelp { + completions = append( + completions, + a.prepareFishFlags([]Flag{HelpFlag}, allCommands)..., + ) + } + + // Add version flag + if !a.HideVersion { + completions = append( + completions, + a.prepareFishFlags([]Flag{VersionFlag}, allCommands)..., + ) + } + + // Add commands and their flags + completions = append( + completions, + a.prepareFishCommands(a.VisibleCommands(), &allCommands, []string{})..., + ) + + return t.ExecuteTemplate(w, name, &fishCompletionTemplate{ + App: a, + Completions: completions, + AllCommands: allCommands, + }) +} + +func (a *App) prepareFishCommands(commands []*Command, allCommands *[]string, previousCommands []string) []string { + completions := []string{} + for _, command := range commands { + if command.Hidden { + continue + } + + var completion strings.Builder + completion.WriteString(fmt.Sprintf( + "complete -r -c %s -n '%s' -a '%s'", + a.Name, + a.fishSubcommandHelper(previousCommands), + strings.Join(command.Names(), " "), + )) + + if command.Usage != "" { + completion.WriteString(fmt.Sprintf(" -d '%s'", + escapeSingleQuotes(command.Usage))) + } + + if !command.HideHelp { + completions = append( + completions, + a.prepareFishFlags([]Flag{HelpFlag}, command.Names())..., + ) + } + + *allCommands = append(*allCommands, command.Names()...) + completions = append(completions, completion.String()) + completions = append( + completions, + a.prepareFishFlags(command.Flags, command.Names())..., + ) + + // recursevly iterate subcommands + if len(command.Subcommands) > 0 { + completions = append( + completions, + a.prepareFishCommands( + command.Subcommands, allCommands, command.Names(), + )..., + ) + } + } + + return completions +} + +func (a *App) prepareFishFlags(flags []Flag, previousCommands []string) []string { + completions := []string{} + for _, f := range flags { + flag, ok := f.(DocGenerationFlag) + if !ok { + continue + } + + completion := &strings.Builder{} + completion.WriteString(fmt.Sprintf( + "complete -c %s -n '%s'", + a.Name, + a.fishSubcommandHelper(previousCommands), + )) + + fishAddFileFlag(f, completion) + + for idx, opt := range flag.Names() { + if idx == 0 { + completion.WriteString(fmt.Sprintf( + " -l %s", strings.TrimSpace(opt), + )) + } else { + completion.WriteString(fmt.Sprintf( + " -s %s", strings.TrimSpace(opt), + )) + + } + } + + if flag.TakesValue() { + completion.WriteString(" -r") + } + + if flag.GetUsage() != "" { + completion.WriteString(fmt.Sprintf(" -d '%s'", + escapeSingleQuotes(flag.GetUsage()))) + } + + completions = append(completions, completion.String()) + } + + return completions +} + +func fishAddFileFlag(flag Flag, completion *strings.Builder) { + switch f := flag.(type) { + case *GenericFlag: + if f.TakesFile { + return + } + case *StringFlag: + if f.TakesFile { + return + } + case *StringSliceFlag: + if f.TakesFile { + return + } + } + completion.WriteString(" -f") +} + +func (a *App) fishSubcommandHelper(allCommands []string) string { + fishHelper := fmt.Sprintf("__fish_%s_no_subcommand", a.Name) + if len(allCommands) > 0 { + fishHelper = fmt.Sprintf( + "__fish_seen_subcommand_from %s", + strings.Join(allCommands, " "), + ) + } + return fishHelper + +} + +func escapeSingleQuotes(input string) string { + return strings.Replace(input, `'`, `\'`, -1) +} diff --git a/vendor/github.com/urfave/cli/v2/flag.go b/vendor/github.com/urfave/cli/v2/flag.go new file mode 100644 index 000000000..ad97c2d05 --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/flag.go @@ -0,0 +1,388 @@ +package cli + +import ( + "flag" + "fmt" + "io/ioutil" + "reflect" + "regexp" + "runtime" + "strconv" + "strings" + "syscall" + "time" +) + +const defaultPlaceholder = "value" + +var ( + slPfx = fmt.Sprintf("sl:::%d:::", time.Now().UTC().UnixNano()) + + commaWhitespace = regexp.MustCompile("[, ]+.*") +) + +// BashCompletionFlag enables bash-completion for all commands and subcommands +var BashCompletionFlag Flag = &BoolFlag{ + Name: "generate-bash-completion", + Hidden: true, +} + +// VersionFlag prints the version for the application +var VersionFlag Flag = &BoolFlag{ + Name: "version", + Aliases: []string{"v"}, + Usage: "print the version", +} + +// HelpFlag prints the help for all commands and subcommands. +// Set to nil to disable the flag. The subcommand +// will still be added unless HideHelp or HideHelpCommand is set to true. +var HelpFlag Flag = &BoolFlag{ + Name: "help", + Aliases: []string{"h"}, + Usage: "show help", +} + +// FlagStringer converts a flag definition to a string. This is used by help +// to display a flag. +var FlagStringer FlagStringFunc = stringifyFlag + +// Serializer is used to circumvent the limitations of flag.FlagSet.Set +type Serializer interface { + Serialize() string +} + +// FlagNamePrefixer converts a full flag name and its placeholder into the help +// message flag prefix. This is used by the default FlagStringer. +var FlagNamePrefixer FlagNamePrefixFunc = prefixedNames + +// FlagEnvHinter annotates flag help message with the environment variable +// details. This is used by the default FlagStringer. +var FlagEnvHinter FlagEnvHintFunc = withEnvHint + +// FlagFileHinter annotates flag help message with the environment variable +// details. This is used by the default FlagStringer. +var FlagFileHinter FlagFileHintFunc = withFileHint + +// FlagsByName is a slice of Flag. +type FlagsByName []Flag + +func (f FlagsByName) Len() int { + return len(f) +} + +func (f FlagsByName) Less(i, j int) bool { + if len(f[j].Names()) == 0 { + return false + } else if len(f[i].Names()) == 0 { + return true + } + return lexicographicLess(f[i].Names()[0], f[j].Names()[0]) +} + +func (f FlagsByName) Swap(i, j int) { + f[i], f[j] = f[j], f[i] +} + +// Flag is a common interface related to parsing flags in cli. +// For more advanced flag parsing techniques, it is recommended that +// this interface be implemented. +type Flag interface { + fmt.Stringer + // Apply Flag settings to the given flag set + Apply(*flag.FlagSet) error + Names() []string + IsSet() bool +} + +// RequiredFlag is an interface that allows us to mark flags as required +// it allows flags required flags to be backwards compatible with the Flag interface +type RequiredFlag interface { + Flag + + IsRequired() bool +} + +// DocGenerationFlag is an interface that allows documentation generation for the flag +type DocGenerationFlag interface { + Flag + + // TakesValue returns true if the flag takes a value, otherwise false + TakesValue() bool + + // GetUsage returns the usage string for the flag + GetUsage() string + + // GetValue returns the flags value as string representation and an empty + // string if the flag takes no value at all. + GetValue() string +} + +func flagSet(name string, flags []Flag) (*flag.FlagSet, error) { + set := flag.NewFlagSet(name, flag.ContinueOnError) + + for _, f := range flags { + if err := f.Apply(set); err != nil { + return nil, err + } + } + set.SetOutput(ioutil.Discard) + return set, nil +} + +func visibleFlags(fl []Flag) []Flag { + var visible []Flag + for _, f := range fl { + field := flagValue(f).FieldByName("Hidden") + if !field.IsValid() || !field.Bool() { + visible = append(visible, f) + } + } + return visible +} + +func prefixFor(name string) (prefix string) { + if len(name) == 1 { + prefix = "-" + } else { + prefix = "--" + } + + return +} + +// Returns the placeholder, if any, and the unquoted usage string. +func unquoteUsage(usage string) (string, string) { + for i := 0; i < len(usage); i++ { + if usage[i] == '`' { + for j := i + 1; j < len(usage); j++ { + if usage[j] == '`' { + name := usage[i+1 : j] + usage = usage[:i] + name + usage[j+1:] + return name, usage + } + } + break + } + } + return "", usage +} + +func prefixedNames(names []string, placeholder string) string { + var prefixed string + for i, name := range names { + if name == "" { + continue + } + + prefixed += prefixFor(name) + name + if placeholder != "" { + prefixed += " " + placeholder + } + if i < len(names)-1 { + prefixed += ", " + } + } + return prefixed +} + +func withEnvHint(envVars []string, str string) string { + envText := "" + if envVars != nil && len(envVars) > 0 { + prefix := "$" + suffix := "" + sep := ", $" + if runtime.GOOS == "windows" { + prefix = "%" + suffix = "%" + sep = "%, %" + } + + envText = fmt.Sprintf(" [%s%s%s]", prefix, strings.Join(envVars, sep), suffix) + } + return str + envText +} + +func flagNames(name string, aliases []string) []string { + var ret []string + + for _, part := range append([]string{name}, aliases...) { + // v1 -> v2 migration warning zone: + // Strip off anything after the first found comma or space, which + // *hopefully* makes it a tiny bit more obvious that unexpected behavior is + // caused by using the v1 form of stringly typed "Name". + ret = append(ret, commaWhitespace.ReplaceAllString(part, "")) + } + + return ret +} + +func flagStringSliceField(f Flag, name string) []string { + fv := flagValue(f) + field := fv.FieldByName(name) + + if field.IsValid() { + return field.Interface().([]string) + } + + return []string{} +} + +func withFileHint(filePath, str string) string { + fileText := "" + if filePath != "" { + fileText = fmt.Sprintf(" [%s]", filePath) + } + return str + fileText +} + +func flagValue(f Flag) reflect.Value { + fv := reflect.ValueOf(f) + for fv.Kind() == reflect.Ptr { + fv = reflect.Indirect(fv) + } + return fv +} + +func formatDefault(format string) string { + return " (default: " + format + ")" +} + +func stringifyFlag(f Flag) string { + fv := flagValue(f) + + switch f := f.(type) { + case *IntSliceFlag: + return withEnvHint(flagStringSliceField(f, "EnvVars"), + stringifyIntSliceFlag(f)) + case *Int64SliceFlag: + return withEnvHint(flagStringSliceField(f, "EnvVars"), + stringifyInt64SliceFlag(f)) + case *Float64SliceFlag: + return withEnvHint(flagStringSliceField(f, "EnvVars"), + stringifyFloat64SliceFlag(f)) + case *StringSliceFlag: + return withEnvHint(flagStringSliceField(f, "EnvVars"), + stringifyStringSliceFlag(f)) + } + + placeholder, usage := unquoteUsage(fv.FieldByName("Usage").String()) + + needsPlaceholder := false + defaultValueString := "" + val := fv.FieldByName("Value") + if val.IsValid() { + needsPlaceholder = val.Kind() != reflect.Bool + defaultValueString = fmt.Sprintf(formatDefault("%v"), val.Interface()) + + if val.Kind() == reflect.String && val.String() != "" { + defaultValueString = fmt.Sprintf(formatDefault("%q"), val.String()) + } + } + + helpText := fv.FieldByName("DefaultText") + if helpText.IsValid() && helpText.String() != "" { + needsPlaceholder = val.Kind() != reflect.Bool + defaultValueString = fmt.Sprintf(formatDefault("%s"), helpText.String()) + } + + if defaultValueString == formatDefault("") { + defaultValueString = "" + } + + if needsPlaceholder && placeholder == "" { + placeholder = defaultPlaceholder + } + + usageWithDefault := strings.TrimSpace(usage + defaultValueString) + + return withEnvHint(flagStringSliceField(f, "EnvVars"), + fmt.Sprintf("%s\t%s", prefixedNames(f.Names(), placeholder), usageWithDefault)) +} + +func stringifyIntSliceFlag(f *IntSliceFlag) string { + var defaultVals []string + if f.Value != nil && len(f.Value.Value()) > 0 { + for _, i := range f.Value.Value() { + defaultVals = append(defaultVals, strconv.Itoa(i)) + } + } + + return stringifySliceFlag(f.Usage, f.Names(), defaultVals) +} + +func stringifyInt64SliceFlag(f *Int64SliceFlag) string { + var defaultVals []string + if f.Value != nil && len(f.Value.Value()) > 0 { + for _, i := range f.Value.Value() { + defaultVals = append(defaultVals, strconv.FormatInt(i, 10)) + } + } + + return stringifySliceFlag(f.Usage, f.Names(), defaultVals) +} + +func stringifyFloat64SliceFlag(f *Float64SliceFlag) string { + var defaultVals []string + + if f.Value != nil && len(f.Value.Value()) > 0 { + for _, i := range f.Value.Value() { + defaultVals = append(defaultVals, strings.TrimRight(strings.TrimRight(fmt.Sprintf("%f", i), "0"), ".")) + } + } + + return stringifySliceFlag(f.Usage, f.Names(), defaultVals) +} + +func stringifyStringSliceFlag(f *StringSliceFlag) string { + var defaultVals []string + if f.Value != nil && len(f.Value.Value()) > 0 { + for _, s := range f.Value.Value() { + if len(s) > 0 { + defaultVals = append(defaultVals, strconv.Quote(s)) + } + } + } + + return stringifySliceFlag(f.Usage, f.Names(), defaultVals) +} + +func stringifySliceFlag(usage string, names, defaultVals []string) string { + placeholder, usage := unquoteUsage(usage) + if placeholder == "" { + placeholder = defaultPlaceholder + } + + defaultVal := "" + if len(defaultVals) > 0 { + defaultVal = fmt.Sprintf(formatDefault("%s"), strings.Join(defaultVals, ", ")) + } + + usageWithDefault := strings.TrimSpace(fmt.Sprintf("%s%s", usage, defaultVal)) + return fmt.Sprintf("%s\t%s", prefixedNames(names, placeholder), usageWithDefault) +} + +func hasFlag(flags []Flag, fl Flag) bool { + for _, existing := range flags { + if fl == existing { + return true + } + } + + return false +} + +func flagFromEnvOrFile(envVars []string, filePath string) (val string, ok bool) { + for _, envVar := range envVars { + envVar = strings.TrimSpace(envVar) + if val, ok := syscall.Getenv(envVar); ok { + return val, true + } + } + for _, fileVar := range strings.Split(filePath, ",") { + if data, err := ioutil.ReadFile(fileVar); err == nil { + return string(data), true + } + } + return "", false +} diff --git a/vendor/github.com/urfave/cli/v2/flag_bool.go b/vendor/github.com/urfave/cli/v2/flag_bool.go new file mode 100644 index 000000000..bc9ea35d0 --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/flag_bool.go @@ -0,0 +1,106 @@ +package cli + +import ( + "flag" + "fmt" + "strconv" +) + +// BoolFlag is a flag with type bool +type BoolFlag struct { + Name string + Aliases []string + Usage string + EnvVars []string + FilePath string + Required bool + Hidden bool + Value bool + DefaultText string + Destination *bool + HasBeenSet bool +} + +// IsSet returns whether or not the flag has been set through env or file +func (f *BoolFlag) IsSet() bool { + return f.HasBeenSet +} + +// String returns a readable representation of this value +// (for usage defaults) +func (f *BoolFlag) String() string { + return FlagStringer(f) +} + +// Names returns the names of the flag +func (f *BoolFlag) Names() []string { + return flagNames(f.Name, f.Aliases) +} + +// IsRequired returns whether or not the flag is required +func (f *BoolFlag) IsRequired() bool { + return f.Required +} + +// TakesValue returns true of the flag takes a value, otherwise false +func (f *BoolFlag) TakesValue() bool { + return false +} + +// GetUsage returns the usage string for the flag +func (f *BoolFlag) GetUsage() string { + return f.Usage +} + +// GetValue returns the flags value as string representation and an empty +// string if the flag takes no value at all. +func (f *BoolFlag) GetValue() string { + return "" +} + +// Apply populates the flag given the flag set and environment +func (f *BoolFlag) Apply(set *flag.FlagSet) error { + if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok { + if val != "" { + valBool, err := strconv.ParseBool(val) + + if err != nil { + return fmt.Errorf("could not parse %q as bool value for flag %s: %s", val, f.Name, err) + } + + f.Value = valBool + f.HasBeenSet = true + } + } + + for _, name := range f.Names() { + if f.Destination != nil { + set.BoolVar(f.Destination, name, f.Value, f.Usage) + continue + } + set.Bool(name, f.Value, f.Usage) + } + + return nil +} + +// Bool looks up the value of a local BoolFlag, returns +// false if not found +func (c *Context) Bool(name string) bool { + if fs := lookupFlagSet(name, c); fs != nil { + return lookupBool(name, fs) + } + return false +} + +func lookupBool(name string, set *flag.FlagSet) bool { + f := set.Lookup(name) + if f != nil { + parsed, err := strconv.ParseBool(f.Value.String()) + if err != nil { + return false + } + return parsed + } + return false +} diff --git a/vendor/github.com/urfave/cli/v2/flag_duration.go b/vendor/github.com/urfave/cli/v2/flag_duration.go new file mode 100644 index 000000000..22a2e6720 --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/flag_duration.go @@ -0,0 +1,105 @@ +package cli + +import ( + "flag" + "fmt" + "time" +) + +// DurationFlag is a flag with type time.Duration (see https://golang.org/pkg/time/#ParseDuration) +type DurationFlag struct { + Name string + Aliases []string + Usage string + EnvVars []string + FilePath string + Required bool + Hidden bool + Value time.Duration + DefaultText string + Destination *time.Duration + HasBeenSet bool +} + +// IsSet returns whether or not the flag has been set through env or file +func (f *DurationFlag) IsSet() bool { + return f.HasBeenSet +} + +// String returns a readable representation of this value +// (for usage defaults) +func (f *DurationFlag) String() string { + return FlagStringer(f) +} + +// Names returns the names of the flag +func (f *DurationFlag) Names() []string { + return flagNames(f.Name, f.Aliases) +} + +// IsRequired returns whether or not the flag is required +func (f *DurationFlag) IsRequired() bool { + return f.Required +} + +// TakesValue returns true of the flag takes a value, otherwise false +func (f *DurationFlag) TakesValue() bool { + return true +} + +// GetUsage returns the usage string for the flag +func (f *DurationFlag) GetUsage() string { + return f.Usage +} + +// GetValue returns the flags value as string representation and an empty +// string if the flag takes no value at all. +func (f *DurationFlag) GetValue() string { + return f.Value.String() +} + +// Apply populates the flag given the flag set and environment +func (f *DurationFlag) Apply(set *flag.FlagSet) error { + if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok { + if val != "" { + valDuration, err := time.ParseDuration(val) + + if err != nil { + return fmt.Errorf("could not parse %q as duration value for flag %s: %s", val, f.Name, err) + } + + f.Value = valDuration + f.HasBeenSet = true + } + } + + for _, name := range f.Names() { + if f.Destination != nil { + set.DurationVar(f.Destination, name, f.Value, f.Usage) + continue + } + set.Duration(name, f.Value, f.Usage) + } + return nil +} + +// Duration looks up the value of a local DurationFlag, returns +// 0 if not found +func (c *Context) Duration(name string) time.Duration { + if fs := lookupFlagSet(name, c); fs != nil { + return lookupDuration(name, fs) + } + return 0 +} + +func lookupDuration(name string, set *flag.FlagSet) time.Duration { + f := set.Lookup(name) + if f != nil { + parsed, err := time.ParseDuration(f.Value.String()) + if err != nil { + return 0 + } + return parsed + } + return 0 +} diff --git a/vendor/github.com/urfave/cli/v2/flag_float64.go b/vendor/github.com/urfave/cli/v2/flag_float64.go new file mode 100644 index 000000000..91c778c87 --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/flag_float64.go @@ -0,0 +1,106 @@ +package cli + +import ( + "flag" + "fmt" + "strconv" +) + +// Float64Flag is a flag with type float64 +type Float64Flag struct { + Name string + Aliases []string + Usage string + EnvVars []string + FilePath string + Required bool + Hidden bool + Value float64 + DefaultText string + Destination *float64 + HasBeenSet bool +} + +// IsSet returns whether or not the flag has been set through env or file +func (f *Float64Flag) IsSet() bool { + return f.HasBeenSet +} + +// String returns a readable representation of this value +// (for usage defaults) +func (f *Float64Flag) String() string { + return FlagStringer(f) +} + +// Names returns the names of the flag +func (f *Float64Flag) Names() []string { + return flagNames(f.Name, f.Aliases) +} + +// IsRequired returns whether or not the flag is required +func (f *Float64Flag) IsRequired() bool { + return f.Required +} + +// TakesValue returns true of the flag takes a value, otherwise false +func (f *Float64Flag) TakesValue() bool { + return true +} + +// GetUsage returns the usage string for the flag +func (f *Float64Flag) GetUsage() string { + return f.Usage +} + +// GetValue returns the flags value as string representation and an empty +// string if the flag takes no value at all. +func (f *Float64Flag) GetValue() string { + return fmt.Sprintf("%f", f.Value) +} + +// Apply populates the flag given the flag set and environment +func (f *Float64Flag) Apply(set *flag.FlagSet) error { + if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok { + if val != "" { + valFloat, err := strconv.ParseFloat(val, 10) + + if err != nil { + return fmt.Errorf("could not parse %q as float64 value for flag %s: %s", val, f.Name, err) + } + + f.Value = valFloat + f.HasBeenSet = true + } + } + + for _, name := range f.Names() { + if f.Destination != nil { + set.Float64Var(f.Destination, name, f.Value, f.Usage) + continue + } + set.Float64(name, f.Value, f.Usage) + } + + return nil +} + +// Float64 looks up the value of a local Float64Flag, returns +// 0 if not found +func (c *Context) Float64(name string) float64 { + if fs := lookupFlagSet(name, c); fs != nil { + return lookupFloat64(name, fs) + } + return 0 +} + +func lookupFloat64(name string, set *flag.FlagSet) float64 { + f := set.Lookup(name) + if f != nil { + parsed, err := strconv.ParseFloat(f.Value.String(), 64) + if err != nil { + return 0 + } + return parsed + } + return 0 +} diff --git a/vendor/github.com/urfave/cli/v2/flag_float64_slice.go b/vendor/github.com/urfave/cli/v2/flag_float64_slice.go new file mode 100644 index 000000000..706ee6cd4 --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/flag_float64_slice.go @@ -0,0 +1,163 @@ +package cli + +import ( + "encoding/json" + "flag" + "fmt" + "strconv" + "strings" +) + +// Float64Slice wraps []float64 to satisfy flag.Value +type Float64Slice struct { + slice []float64 + hasBeenSet bool +} + +// NewFloat64Slice makes a *Float64Slice with default values +func NewFloat64Slice(defaults ...float64) *Float64Slice { + return &Float64Slice{slice: append([]float64{}, defaults...)} +} + +// Set parses the value into a float64 and appends it to the list of values +func (f *Float64Slice) Set(value string) error { + if !f.hasBeenSet { + f.slice = []float64{} + f.hasBeenSet = true + } + + if strings.HasPrefix(value, slPfx) { + // Deserializing assumes overwrite + _ = json.Unmarshal([]byte(strings.Replace(value, slPfx, "", 1)), &f.slice) + f.hasBeenSet = true + return nil + } + + tmp, err := strconv.ParseFloat(value, 64) + if err != nil { + return err + } + + f.slice = append(f.slice, tmp) + return nil +} + +// String returns a readable representation of this value (for usage defaults) +func (f *Float64Slice) String() string { + return fmt.Sprintf("%#v", f.slice) +} + +// Serialize allows Float64Slice to fulfill Serializer +func (f *Float64Slice) Serialize() string { + jsonBytes, _ := json.Marshal(f.slice) + return fmt.Sprintf("%s%s", slPfx, string(jsonBytes)) +} + +// Value returns the slice of float64s set by this flag +func (f *Float64Slice) Value() []float64 { + return f.slice +} + +// Get returns the slice of float64s set by this flag +func (f *Float64Slice) Get() interface{} { + return *f +} + +// Float64SliceFlag is a flag with type *Float64Slice +type Float64SliceFlag struct { + Name string + Aliases []string + Usage string + EnvVars []string + FilePath string + Required bool + Hidden bool + Value *Float64Slice + DefaultText string + HasBeenSet bool +} + +// IsSet returns whether or not the flag has been set through env or file +func (f *Float64SliceFlag) IsSet() bool { + return f.HasBeenSet +} + +// String returns a readable representation of this value +// (for usage defaults) +func (f *Float64SliceFlag) String() string { + return FlagStringer(f) +} + +// Names returns the names of the flag +func (f *Float64SliceFlag) Names() []string { + return flagNames(f.Name, f.Aliases) +} + +// IsRequired returns whether or not the flag is required +func (f *Float64SliceFlag) IsRequired() bool { + return f.Required +} + +// TakesValue returns true if the flag takes a value, otherwise false +func (f *Float64SliceFlag) TakesValue() bool { + return true +} + +// GetUsage returns the usage string for the flag +func (f *Float64SliceFlag) GetUsage() string { + return f.Usage +} + +// GetValue returns the flags value as string representation and an empty +// string if the flag takes no value at all. +func (f *Float64SliceFlag) GetValue() string { + if f.Value != nil { + return f.Value.String() + } + return "" +} + +// Apply populates the flag given the flag set and environment +func (f *Float64SliceFlag) Apply(set *flag.FlagSet) error { + if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok { + if val != "" { + f.Value = &Float64Slice{} + + for _, s := range strings.Split(val, ",") { + if err := f.Value.Set(strings.TrimSpace(s)); err != nil { + return fmt.Errorf("could not parse %q as float64 slice value for flag %s: %s", f.Value, f.Name, err) + } + } + + f.HasBeenSet = true + } + } + + for _, name := range f.Names() { + if f.Value == nil { + f.Value = &Float64Slice{} + } + set.Var(f.Value, name, f.Usage) + } + + return nil +} + +// Float64Slice looks up the value of a local Float64SliceFlag, returns +// nil if not found +func (c *Context) Float64Slice(name string) []float64 { + if fs := lookupFlagSet(name, c); fs != nil { + return lookupFloat64Slice(name, fs) + } + return nil +} + +func lookupFloat64Slice(name string, set *flag.FlagSet) []float64 { + f := set.Lookup(name) + if f != nil { + if slice, ok := f.Value.(*Float64Slice); ok { + return slice.Value() + } + } + return nil +} diff --git a/vendor/github.com/urfave/cli/v2/flag_generic.go b/vendor/github.com/urfave/cli/v2/flag_generic.go new file mode 100644 index 000000000..b0c8ff44d --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/flag_generic.go @@ -0,0 +1,108 @@ +package cli + +import ( + "flag" + "fmt" +) + +// Generic is a generic parseable type identified by a specific flag +type Generic interface { + Set(value string) error + String() string +} + +// GenericFlag is a flag with type Generic +type GenericFlag struct { + Name string + Aliases []string + Usage string + EnvVars []string + FilePath string + Required bool + Hidden bool + TakesFile bool + Value Generic + DefaultText string + HasBeenSet bool +} + +// IsSet returns whether or not the flag has been set through env or file +func (f *GenericFlag) IsSet() bool { + return f.HasBeenSet +} + +// String returns a readable representation of this value +// (for usage defaults) +func (f *GenericFlag) String() string { + return FlagStringer(f) +} + +// Names returns the names of the flag +func (f *GenericFlag) Names() []string { + return flagNames(f.Name, f.Aliases) +} + +// IsRequired returns whether or not the flag is required +func (f *GenericFlag) IsRequired() bool { + return f.Required +} + +// TakesValue returns true of the flag takes a value, otherwise false +func (f *GenericFlag) TakesValue() bool { + return true +} + +// GetUsage returns the usage string for the flag +func (f *GenericFlag) GetUsage() string { + return f.Usage +} + +// GetValue returns the flags value as string representation and an empty +// string if the flag takes no value at all. +func (f *GenericFlag) GetValue() string { + if f.Value != nil { + return f.Value.String() + } + return "" +} + +// Apply takes the flagset and calls Set on the generic flag with the value +// provided by the user for parsing by the flag +func (f GenericFlag) Apply(set *flag.FlagSet) error { + if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok { + if val != "" { + if err := f.Value.Set(val); err != nil { + return fmt.Errorf("could not parse %q as value for flag %s: %s", val, f.Name, err) + } + + f.HasBeenSet = true + } + } + + for _, name := range f.Names() { + set.Var(f.Value, name, f.Usage) + } + + return nil +} + +// Generic looks up the value of a local GenericFlag, returns +// nil if not found +func (c *Context) Generic(name string) interface{} { + if fs := lookupFlagSet(name, c); fs != nil { + return lookupGeneric(name, fs) + } + return nil +} + +func lookupGeneric(name string, set *flag.FlagSet) interface{} { + f := set.Lookup(name) + if f != nil { + parsed, err := f.Value, error(nil) + if err != nil { + return nil + } + return parsed + } + return nil +} diff --git a/vendor/github.com/urfave/cli/v2/flag_int.go b/vendor/github.com/urfave/cli/v2/flag_int.go new file mode 100644 index 000000000..ac39d4a9e --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/flag_int.go @@ -0,0 +1,106 @@ +package cli + +import ( + "flag" + "fmt" + "strconv" +) + +// IntFlag is a flag with type int +type IntFlag struct { + Name string + Aliases []string + Usage string + EnvVars []string + FilePath string + Required bool + Hidden bool + Value int + DefaultText string + Destination *int + HasBeenSet bool +} + +// IsSet returns whether or not the flag has been set through env or file +func (f *IntFlag) IsSet() bool { + return f.HasBeenSet +} + +// String returns a readable representation of this value +// (for usage defaults) +func (f *IntFlag) String() string { + return FlagStringer(f) +} + +// Names returns the names of the flag +func (f *IntFlag) Names() []string { + return flagNames(f.Name, f.Aliases) +} + +// IsRequired returns whether or not the flag is required +func (f *IntFlag) IsRequired() bool { + return f.Required +} + +// TakesValue returns true of the flag takes a value, otherwise false +func (f *IntFlag) TakesValue() bool { + return true +} + +// GetUsage returns the usage string for the flag +func (f *IntFlag) GetUsage() string { + return f.Usage +} + +// GetValue returns the flags value as string representation and an empty +// string if the flag takes no value at all. +func (f *IntFlag) GetValue() string { + return fmt.Sprintf("%d", f.Value) +} + +// Apply populates the flag given the flag set and environment +func (f *IntFlag) Apply(set *flag.FlagSet) error { + if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok { + if val != "" { + valInt, err := strconv.ParseInt(val, 0, 64) + + if err != nil { + return fmt.Errorf("could not parse %q as int value for flag %s: %s", val, f.Name, err) + } + + f.Value = int(valInt) + f.HasBeenSet = true + } + } + + for _, name := range f.Names() { + if f.Destination != nil { + set.IntVar(f.Destination, name, f.Value, f.Usage) + continue + } + set.Int(name, f.Value, f.Usage) + } + + return nil +} + +// Int looks up the value of a local IntFlag, returns +// 0 if not found +func (c *Context) Int(name string) int { + if fs := lookupFlagSet(name, c); fs != nil { + return lookupInt(name, fs) + } + return 0 +} + +func lookupInt(name string, set *flag.FlagSet) int { + f := set.Lookup(name) + if f != nil { + parsed, err := strconv.ParseInt(f.Value.String(), 0, 64) + if err != nil { + return 0 + } + return int(parsed) + } + return 0 +} diff --git a/vendor/github.com/urfave/cli/v2/flag_int64.go b/vendor/github.com/urfave/cli/v2/flag_int64.go new file mode 100644 index 000000000..e09991269 --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/flag_int64.go @@ -0,0 +1,105 @@ +package cli + +import ( + "flag" + "fmt" + "strconv" +) + +// Int64Flag is a flag with type int64 +type Int64Flag struct { + Name string + Aliases []string + Usage string + EnvVars []string + FilePath string + Required bool + Hidden bool + Value int64 + DefaultText string + Destination *int64 + HasBeenSet bool +} + +// IsSet returns whether or not the flag has been set through env or file +func (f *Int64Flag) IsSet() bool { + return f.HasBeenSet +} + +// String returns a readable representation of this value +// (for usage defaults) +func (f *Int64Flag) String() string { + return FlagStringer(f) +} + +// Names returns the names of the flag +func (f *Int64Flag) Names() []string { + return flagNames(f.Name, f.Aliases) +} + +// IsRequired returns whether or not the flag is required +func (f *Int64Flag) IsRequired() bool { + return f.Required +} + +// TakesValue returns true of the flag takes a value, otherwise false +func (f *Int64Flag) TakesValue() bool { + return true +} + +// GetUsage returns the usage string for the flag +func (f *Int64Flag) GetUsage() string { + return f.Usage +} + +// GetValue returns the flags value as string representation and an empty +// string if the flag takes no value at all. +func (f *Int64Flag) GetValue() string { + return fmt.Sprintf("%d", f.Value) +} + +// Apply populates the flag given the flag set and environment +func (f *Int64Flag) Apply(set *flag.FlagSet) error { + if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok { + if val != "" { + valInt, err := strconv.ParseInt(val, 0, 64) + + if err != nil { + return fmt.Errorf("could not parse %q as int value for flag %s: %s", val, f.Name, err) + } + + f.Value = valInt + f.HasBeenSet = true + } + } + + for _, name := range f.Names() { + if f.Destination != nil { + set.Int64Var(f.Destination, name, f.Value, f.Usage) + continue + } + set.Int64(name, f.Value, f.Usage) + } + return nil +} + +// Int64 looks up the value of a local Int64Flag, returns +// 0 if not found +func (c *Context) Int64(name string) int64 { + if fs := lookupFlagSet(name, c); fs != nil { + return lookupInt64(name, fs) + } + return 0 +} + +func lookupInt64(name string, set *flag.FlagSet) int64 { + f := set.Lookup(name) + if f != nil { + parsed, err := strconv.ParseInt(f.Value.String(), 0, 64) + if err != nil { + return 0 + } + return parsed + } + return 0 +} diff --git a/vendor/github.com/urfave/cli/v2/flag_int64_slice.go b/vendor/github.com/urfave/cli/v2/flag_int64_slice.go new file mode 100644 index 000000000..6c7fd9376 --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/flag_int64_slice.go @@ -0,0 +1,159 @@ +package cli + +import ( + "encoding/json" + "flag" + "fmt" + "strconv" + "strings" +) + +// Int64Slice wraps []int64 to satisfy flag.Value +type Int64Slice struct { + slice []int64 + hasBeenSet bool +} + +// NewInt64Slice makes an *Int64Slice with default values +func NewInt64Slice(defaults ...int64) *Int64Slice { + return &Int64Slice{slice: append([]int64{}, defaults...)} +} + +// Set parses the value into an integer and appends it to the list of values +func (i *Int64Slice) Set(value string) error { + if !i.hasBeenSet { + i.slice = []int64{} + i.hasBeenSet = true + } + + if strings.HasPrefix(value, slPfx) { + // Deserializing assumes overwrite + _ = json.Unmarshal([]byte(strings.Replace(value, slPfx, "", 1)), &i.slice) + i.hasBeenSet = true + return nil + } + + tmp, err := strconv.ParseInt(value, 0, 64) + if err != nil { + return err + } + + i.slice = append(i.slice, tmp) + + return nil +} + +// String returns a readable representation of this value (for usage defaults) +func (i *Int64Slice) String() string { + return fmt.Sprintf("%#v", i.slice) +} + +// Serialize allows Int64Slice to fulfill Serializer +func (i *Int64Slice) Serialize() string { + jsonBytes, _ := json.Marshal(i.slice) + return fmt.Sprintf("%s%s", slPfx, string(jsonBytes)) +} + +// Value returns the slice of ints set by this flag +func (i *Int64Slice) Value() []int64 { + return i.slice +} + +// Get returns the slice of ints set by this flag +func (i *Int64Slice) Get() interface{} { + return *i +} + +// Int64SliceFlag is a flag with type *Int64Slice +type Int64SliceFlag struct { + Name string + Aliases []string + Usage string + EnvVars []string + FilePath string + Required bool + Hidden bool + Value *Int64Slice + DefaultText string + HasBeenSet bool +} + +// IsSet returns whether or not the flag has been set through env or file +func (f *Int64SliceFlag) IsSet() bool { + return f.HasBeenSet +} + +// String returns a readable representation of this value +// (for usage defaults) +func (f *Int64SliceFlag) String() string { + return FlagStringer(f) +} + +// Names returns the names of the flag +func (f *Int64SliceFlag) Names() []string { + return flagNames(f.Name, f.Aliases) +} + +// IsRequired returns whether or not the flag is required +func (f *Int64SliceFlag) IsRequired() bool { + return f.Required +} + +// TakesValue returns true of the flag takes a value, otherwise false +func (f *Int64SliceFlag) TakesValue() bool { + return true +} + +// GetUsage returns the usage string for the flag +func (f Int64SliceFlag) GetUsage() string { + return f.Usage +} + +// GetValue returns the flags value as string representation and an empty +// string if the flag takes no value at all. +func (f *Int64SliceFlag) GetValue() string { + if f.Value != nil { + return f.Value.String() + } + return "" +} + +// Apply populates the flag given the flag set and environment +func (f *Int64SliceFlag) Apply(set *flag.FlagSet) error { + if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok { + f.Value = &Int64Slice{} + + for _, s := range strings.Split(val, ",") { + if err := f.Value.Set(strings.TrimSpace(s)); err != nil { + return fmt.Errorf("could not parse %q as int64 slice value for flag %s: %s", val, f.Name, err) + } + } + + f.HasBeenSet = true + } + + for _, name := range f.Names() { + if f.Value == nil { + f.Value = &Int64Slice{} + } + set.Var(f.Value, name, f.Usage) + } + + return nil +} + +// Int64Slice looks up the value of a local Int64SliceFlag, returns +// nil if not found +func (c *Context) Int64Slice(name string) []int64 { + return lookupInt64Slice(name, c.flagSet) +} + +func lookupInt64Slice(name string, set *flag.FlagSet) []int64 { + f := set.Lookup(name) + if f != nil { + if slice, ok := f.Value.(*Int64Slice); ok { + return slice.Value() + } + } + return nil +} diff --git a/vendor/github.com/urfave/cli/v2/flag_int_slice.go b/vendor/github.com/urfave/cli/v2/flag_int_slice.go new file mode 100644 index 000000000..4e0afc021 --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/flag_int_slice.go @@ -0,0 +1,173 @@ +package cli + +import ( + "encoding/json" + "flag" + "fmt" + "strconv" + "strings" +) + +// IntSlice wraps []int to satisfy flag.Value +type IntSlice struct { + slice []int + hasBeenSet bool +} + +// NewIntSlice makes an *IntSlice with default values +func NewIntSlice(defaults ...int) *IntSlice { + return &IntSlice{slice: append([]int{}, defaults...)} +} + +// TODO: Consistently have specific Set function for Int64 and Float64 ? +// SetInt directly adds an integer to the list of values +func (i *IntSlice) SetInt(value int) { + if !i.hasBeenSet { + i.slice = []int{} + i.hasBeenSet = true + } + + i.slice = append(i.slice, value) +} + +// Set parses the value into an integer and appends it to the list of values +func (i *IntSlice) Set(value string) error { + if !i.hasBeenSet { + i.slice = []int{} + i.hasBeenSet = true + } + + if strings.HasPrefix(value, slPfx) { + // Deserializing assumes overwrite + _ = json.Unmarshal([]byte(strings.Replace(value, slPfx, "", 1)), &i.slice) + i.hasBeenSet = true + return nil + } + + tmp, err := strconv.ParseInt(value, 0, 64) + if err != nil { + return err + } + + i.slice = append(i.slice, int(tmp)) + + return nil +} + +// String returns a readable representation of this value (for usage defaults) +func (i *IntSlice) String() string { + return fmt.Sprintf("%#v", i.slice) +} + +// Serialize allows IntSlice to fulfill Serializer +func (i *IntSlice) Serialize() string { + jsonBytes, _ := json.Marshal(i.slice) + return fmt.Sprintf("%s%s", slPfx, string(jsonBytes)) +} + +// Value returns the slice of ints set by this flag +func (i *IntSlice) Value() []int { + return i.slice +} + +// Get returns the slice of ints set by this flag +func (i *IntSlice) Get() interface{} { + return *i +} + +// IntSliceFlag is a flag with type *IntSlice +type IntSliceFlag struct { + Name string + Aliases []string + Usage string + EnvVars []string + FilePath string + Required bool + Hidden bool + Value *IntSlice + DefaultText string + HasBeenSet bool +} + +// IsSet returns whether or not the flag has been set through env or file +func (f *IntSliceFlag) IsSet() bool { + return f.HasBeenSet +} + +// String returns a readable representation of this value +// (for usage defaults) +func (f *IntSliceFlag) String() string { + return FlagStringer(f) +} + +// Names returns the names of the flag +func (f *IntSliceFlag) Names() []string { + return flagNames(f.Name, f.Aliases) +} + +// IsRequired returns whether or not the flag is required +func (f *IntSliceFlag) IsRequired() bool { + return f.Required +} + +// TakesValue returns true of the flag takes a value, otherwise false +func (f *IntSliceFlag) TakesValue() bool { + return true +} + +// GetUsage returns the usage string for the flag +func (f IntSliceFlag) GetUsage() string { + return f.Usage +} + +// GetValue returns the flags value as string representation and an empty +// string if the flag takes no value at all. +func (f *IntSliceFlag) GetValue() string { + if f.Value != nil { + return f.Value.String() + } + return "" +} + +// Apply populates the flag given the flag set and environment +func (f *IntSliceFlag) Apply(set *flag.FlagSet) error { + if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok { + f.Value = &IntSlice{} + + for _, s := range strings.Split(val, ",") { + if err := f.Value.Set(strings.TrimSpace(s)); err != nil { + return fmt.Errorf("could not parse %q as int slice value for flag %s: %s", val, f.Name, err) + } + } + + f.HasBeenSet = true + } + + for _, name := range f.Names() { + if f.Value == nil { + f.Value = &IntSlice{} + } + set.Var(f.Value, name, f.Usage) + } + + return nil +} + +// IntSlice looks up the value of a local IntSliceFlag, returns +// nil if not found +func (c *Context) IntSlice(name string) []int { + if fs := lookupFlagSet(name, c); fs != nil { + return lookupIntSlice(name, c.flagSet) + } + return nil +} + +func lookupIntSlice(name string, set *flag.FlagSet) []int { + f := set.Lookup(name) + if f != nil { + if slice, ok := f.Value.(*IntSlice); ok { + return slice.Value() + } + } + return nil +} diff --git a/vendor/github.com/urfave/cli/v2/flag_path.go b/vendor/github.com/urfave/cli/v2/flag_path.go new file mode 100644 index 000000000..8070dc4b0 --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/flag_path.go @@ -0,0 +1,95 @@ +package cli + +import "flag" + +type PathFlag struct { + Name string + Aliases []string + Usage string + EnvVars []string + FilePath string + Required bool + Hidden bool + TakesFile bool + Value string + DefaultText string + Destination *string + HasBeenSet bool +} + +// IsSet returns whether or not the flag has been set through env or file +func (f *PathFlag) IsSet() bool { + return f.HasBeenSet +} + +// String returns a readable representation of this value +// (for usage defaults) +func (f *PathFlag) String() string { + return FlagStringer(f) +} + +// Names returns the names of the flag +func (f *PathFlag) Names() []string { + return flagNames(f.Name, f.Aliases) +} + +// IsRequired returns whether or not the flag is required +func (f *PathFlag) IsRequired() bool { + return f.Required +} + +// TakesValue returns true of the flag takes a value, otherwise false +func (f *PathFlag) TakesValue() bool { + return true +} + +// GetUsage returns the usage string for the flag +func (f *PathFlag) GetUsage() string { + return f.Usage +} + +// GetValue returns the flags value as string representation and an empty +// string if the flag takes no value at all. +func (f *PathFlag) GetValue() string { + return f.Value +} + +// Apply populates the flag given the flag set and environment +func (f *PathFlag) Apply(set *flag.FlagSet) error { + if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok { + f.Value = val + f.HasBeenSet = true + } + + for _, name := range f.Names() { + if f.Destination != nil { + set.StringVar(f.Destination, name, f.Value, f.Usage) + continue + } + set.String(name, f.Value, f.Usage) + } + + return nil +} + +// Path looks up the value of a local PathFlag, returns +// "" if not found +func (c *Context) Path(name string) string { + if fs := lookupFlagSet(name, c); fs != nil { + return lookupPath(name, fs) + } + + return "" +} + +func lookupPath(name string, set *flag.FlagSet) string { + f := set.Lookup(name) + if f != nil { + parsed, err := f.Value.String(), error(nil) + if err != nil { + return "" + } + return parsed + } + return "" +} diff --git a/vendor/github.com/urfave/cli/v2/flag_string.go b/vendor/github.com/urfave/cli/v2/flag_string.go new file mode 100644 index 000000000..400bb532e --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/flag_string.go @@ -0,0 +1,95 @@ +package cli + +import "flag" + +// StringFlag is a flag with type string +type StringFlag struct { + Name string + Aliases []string + Usage string + EnvVars []string + FilePath string + Required bool + Hidden bool + TakesFile bool + Value string + DefaultText string + Destination *string + HasBeenSet bool +} + +// IsSet returns whether or not the flag has been set through env or file +func (f *StringFlag) IsSet() bool { + return f.HasBeenSet +} + +// String returns a readable representation of this value +// (for usage defaults) +func (f *StringFlag) String() string { + return FlagStringer(f) +} + +// Names returns the names of the flag +func (f *StringFlag) Names() []string { + return flagNames(f.Name, f.Aliases) +} + +// IsRequired returns whether or not the flag is required +func (f *StringFlag) IsRequired() bool { + return f.Required +} + +// TakesValue returns true of the flag takes a value, otherwise false +func (f *StringFlag) TakesValue() bool { + return true +} + +// GetUsage returns the usage string for the flag +func (f *StringFlag) GetUsage() string { + return f.Usage +} + +// GetValue returns the flags value as string representation and an empty +// string if the flag takes no value at all. +func (f *StringFlag) GetValue() string { + return f.Value +} + +// Apply populates the flag given the flag set and environment +func (f *StringFlag) Apply(set *flag.FlagSet) error { + if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok { + f.Value = val + f.HasBeenSet = true + } + + for _, name := range f.Names() { + if f.Destination != nil { + set.StringVar(f.Destination, name, f.Value, f.Usage) + continue + } + set.String(name, f.Value, f.Usage) + } + + return nil +} + +// String looks up the value of a local StringFlag, returns +// "" if not found +func (c *Context) String(name string) string { + if fs := lookupFlagSet(name, c); fs != nil { + return lookupString(name, fs) + } + return "" +} + +func lookupString(name string, set *flag.FlagSet) string { + f := set.Lookup(name) + if f != nil { + parsed, err := f.Value.String(), error(nil) + if err != nil { + return "" + } + return parsed + } + return "" +} diff --git a/vendor/github.com/urfave/cli/v2/flag_string_slice.go b/vendor/github.com/urfave/cli/v2/flag_string_slice.go new file mode 100644 index 000000000..ac363bf60 --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/flag_string_slice.go @@ -0,0 +1,171 @@ +package cli + +import ( + "encoding/json" + "flag" + "fmt" + "strings" +) + +// StringSlice wraps a []string to satisfy flag.Value +type StringSlice struct { + slice []string + hasBeenSet bool +} + +// NewStringSlice creates a *StringSlice with default values +func NewStringSlice(defaults ...string) *StringSlice { + return &StringSlice{slice: append([]string{}, defaults...)} +} + +// Set appends the string value to the list of values +func (s *StringSlice) Set(value string) error { + if !s.hasBeenSet { + s.slice = []string{} + s.hasBeenSet = true + } + + if strings.HasPrefix(value, slPfx) { + // Deserializing assumes overwrite + _ = json.Unmarshal([]byte(strings.Replace(value, slPfx, "", 1)), &s.slice) + s.hasBeenSet = true + return nil + } + + s.slice = append(s.slice, value) + + return nil +} + +// String returns a readable representation of this value (for usage defaults) +func (s *StringSlice) String() string { + return fmt.Sprintf("%s", s.slice) +} + +// Serialize allows StringSlice to fulfill Serializer +func (s *StringSlice) Serialize() string { + jsonBytes, _ := json.Marshal(s.slice) + return fmt.Sprintf("%s%s", slPfx, string(jsonBytes)) +} + +// Value returns the slice of strings set by this flag +func (s *StringSlice) Value() []string { + return s.slice +} + +// Get returns the slice of strings set by this flag +func (s *StringSlice) Get() interface{} { + return *s +} + +// StringSliceFlag is a flag with type *StringSlice +type StringSliceFlag struct { + Name string + Aliases []string + Usage string + EnvVars []string + FilePath string + Required bool + Hidden bool + TakesFile bool + Value *StringSlice + DefaultText string + HasBeenSet bool + Destination *StringSlice +} + +// IsSet returns whether or not the flag has been set through env or file +func (f *StringSliceFlag) IsSet() bool { + return f.HasBeenSet +} + +// String returns a readable representation of this value +// (for usage defaults) +func (f *StringSliceFlag) String() string { + return FlagStringer(f) +} + +// Names returns the names of the flag +func (f *StringSliceFlag) Names() []string { + return flagNames(f.Name, f.Aliases) +} + +// IsRequired returns whether or not the flag is required +func (f *StringSliceFlag) IsRequired() bool { + return f.Required +} + +// TakesValue returns true of the flag takes a value, otherwise false +func (f *StringSliceFlag) TakesValue() bool { + return true +} + +// GetUsage returns the usage string for the flag +func (f *StringSliceFlag) GetUsage() string { + return f.Usage +} + +// GetValue returns the flags value as string representation and an empty +// string if the flag takes no value at all. +func (f *StringSliceFlag) GetValue() string { + if f.Value != nil { + return f.Value.String() + } + return "" +} + +// Apply populates the flag given the flag set and environment +func (f *StringSliceFlag) Apply(set *flag.FlagSet) error { + if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok { + f.Value = &StringSlice{} + destination := f.Value + if f.Destination != nil { + destination = f.Destination + } + + for _, s := range strings.Split(val, ",") { + if err := destination.Set(strings.TrimSpace(s)); err != nil { + return fmt.Errorf("could not parse %q as string value for flag %s: %s", val, f.Name, err) + } + } + + // Set this to false so that we reset the slice if we then set values from + // flags that have already been set by the environment. + destination.hasBeenSet = false + f.HasBeenSet = true + } + + for _, name := range f.Names() { + if f.Value == nil { + f.Value = &StringSlice{} + } + + if f.Destination != nil { + set.Var(f.Destination, name, f.Usage) + continue + } + + set.Var(f.Value, name, f.Usage) + } + + return nil +} + +// StringSlice looks up the value of a local StringSliceFlag, returns +// nil if not found +func (c *Context) StringSlice(name string) []string { + if fs := lookupFlagSet(name, c); fs != nil { + return lookupStringSlice(name, fs) + } + return nil +} + +func lookupStringSlice(name string, set *flag.FlagSet) []string { + f := set.Lookup(name) + if f != nil { + if slice, ok := f.Value.(*StringSlice); ok { + return slice.Value() + } + } + return nil +} diff --git a/vendor/github.com/urfave/cli/v2/flag_timestamp.go b/vendor/github.com/urfave/cli/v2/flag_timestamp.go new file mode 100644 index 000000000..9fac1d1e2 --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/flag_timestamp.go @@ -0,0 +1,152 @@ +package cli + +import ( + "flag" + "fmt" + "time" +) + +// Timestamp wrap to satisfy golang's flag interface. +type Timestamp struct { + timestamp *time.Time + hasBeenSet bool + layout string +} + +// Timestamp constructor +func NewTimestamp(timestamp time.Time) *Timestamp { + return &Timestamp{timestamp: ×tamp} +} + +// Set the timestamp value directly +func (t *Timestamp) SetTimestamp(value time.Time) { + if !t.hasBeenSet { + t.timestamp = &value + t.hasBeenSet = true + } +} + +// Set the timestamp string layout for future parsing +func (t *Timestamp) SetLayout(layout string) { + t.layout = layout +} + +// Parses the string value to timestamp +func (t *Timestamp) Set(value string) error { + timestamp, err := time.Parse(t.layout, value) + if err != nil { + return err + } + + t.timestamp = ×tamp + t.hasBeenSet = true + return nil +} + +// String returns a readable representation of this value (for usage defaults) +func (t *Timestamp) String() string { + return fmt.Sprintf("%#v", t.timestamp) +} + +// Value returns the timestamp value stored in the flag +func (t *Timestamp) Value() *time.Time { + return t.timestamp +} + +// Get returns the flag structure +func (t *Timestamp) Get() interface{} { + return *t +} + +// TimestampFlag is a flag with type time +type TimestampFlag struct { + Name string + Aliases []string + Usage string + EnvVars []string + FilePath string + Required bool + Hidden bool + Layout string + Value *Timestamp + DefaultText string + HasBeenSet bool +} + +// IsSet returns whether or not the flag has been set through env or file +func (f *TimestampFlag) IsSet() bool { + return f.HasBeenSet +} + +// String returns a readable representation of this value +// (for usage defaults) +func (f *TimestampFlag) String() string { + return FlagStringer(f) +} + +// Names returns the names of the flag +func (f *TimestampFlag) Names() []string { + return flagNames(f.Name, f.Aliases) +} + +// IsRequired returns whether or not the flag is required +func (f *TimestampFlag) IsRequired() bool { + return f.Required +} + +// TakesValue returns true of the flag takes a value, otherwise false +func (f *TimestampFlag) TakesValue() bool { + return true +} + +// GetUsage returns the usage string for the flag +func (f *TimestampFlag) GetUsage() string { + return f.Usage +} + +// GetValue returns the flags value as string representation and an empty +// string if the flag takes no value at all. +func (f *TimestampFlag) GetValue() string { + if f.Value != nil { + return f.Value.timestamp.String() + } + return "" +} + +// Apply populates the flag given the flag set and environment +func (f *TimestampFlag) Apply(set *flag.FlagSet) error { + if f.Layout == "" { + return fmt.Errorf("timestamp Layout is required") + } + f.Value = &Timestamp{} + f.Value.SetLayout(f.Layout) + + if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok { + if err := f.Value.Set(val); err != nil { + return fmt.Errorf("could not parse %q as timestamp value for flag %s: %s", val, f.Name, err) + } + f.HasBeenSet = true + } + + for _, name := range f.Names() { + set.Var(f.Value, name, f.Usage) + } + return nil +} + +// Timestamp gets the timestamp from a flag name +func (c *Context) Timestamp(name string) *time.Time { + if fs := lookupFlagSet(name, c); fs != nil { + return lookupTimestamp(name, fs) + } + return nil +} + +// Fetches the timestamp value from the local timestampWrap +func lookupTimestamp(name string, set *flag.FlagSet) *time.Time { + f := set.Lookup(name) + if f != nil { + return (f.Value.(*Timestamp)).Value() + } + return nil +} diff --git a/vendor/github.com/urfave/cli/v2/flag_uint.go b/vendor/github.com/urfave/cli/v2/flag_uint.go new file mode 100644 index 000000000..2e5e76b0e --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/flag_uint.go @@ -0,0 +1,105 @@ +package cli + +import ( + "flag" + "fmt" + "strconv" +) + +// UintFlag is a flag with type uint +type UintFlag struct { + Name string + Aliases []string + Usage string + EnvVars []string + FilePath string + Required bool + Hidden bool + Value uint + DefaultText string + Destination *uint + HasBeenSet bool +} + +// IsSet returns whether or not the flag has been set through env or file +func (f *UintFlag) IsSet() bool { + return f.HasBeenSet +} + +// String returns a readable representation of this value +// (for usage defaults) +func (f *UintFlag) String() string { + return FlagStringer(f) +} + +// Names returns the names of the flag +func (f *UintFlag) Names() []string { + return flagNames(f.Name, f.Aliases) +} + +// IsRequired returns whether or not the flag is required +func (f *UintFlag) IsRequired() bool { + return f.Required +} + +// TakesValue returns true of the flag takes a value, otherwise false +func (f *UintFlag) TakesValue() bool { + return true +} + +// GetUsage returns the usage string for the flag +func (f *UintFlag) GetUsage() string { + return f.Usage +} + +// Apply populates the flag given the flag set and environment +func (f *UintFlag) Apply(set *flag.FlagSet) error { + if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok { + if val != "" { + valInt, err := strconv.ParseUint(val, 0, 64) + if err != nil { + return fmt.Errorf("could not parse %q as uint value for flag %s: %s", val, f.Name, err) + } + + f.Value = uint(valInt) + f.HasBeenSet = true + } + } + + for _, name := range f.Names() { + if f.Destination != nil { + set.UintVar(f.Destination, name, f.Value, f.Usage) + continue + } + set.Uint(name, f.Value, f.Usage) + } + + return nil +} + +// GetValue returns the flags value as string representation and an empty +// string if the flag takes no value at all. +func (f *UintFlag) GetValue() string { + return fmt.Sprintf("%d", f.Value) +} + +// Uint looks up the value of a local UintFlag, returns +// 0 if not found +func (c *Context) Uint(name string) uint { + if fs := lookupFlagSet(name, c); fs != nil { + return lookupUint(name, fs) + } + return 0 +} + +func lookupUint(name string, set *flag.FlagSet) uint { + f := set.Lookup(name) + if f != nil { + parsed, err := strconv.ParseUint(f.Value.String(), 0, 64) + if err != nil { + return 0 + } + return uint(parsed) + } + return 0 +} diff --git a/vendor/github.com/urfave/cli/v2/flag_uint64.go b/vendor/github.com/urfave/cli/v2/flag_uint64.go new file mode 100644 index 000000000..8fc3289d8 --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/flag_uint64.go @@ -0,0 +1,105 @@ +package cli + +import ( + "flag" + "fmt" + "strconv" +) + +// Uint64Flag is a flag with type uint64 +type Uint64Flag struct { + Name string + Aliases []string + Usage string + EnvVars []string + FilePath string + Required bool + Hidden bool + Value uint64 + DefaultText string + Destination *uint64 + HasBeenSet bool +} + +// IsSet returns whether or not the flag has been set through env or file +func (f *Uint64Flag) IsSet() bool { + return f.HasBeenSet +} + +// String returns a readable representation of this value +// (for usage defaults) +func (f *Uint64Flag) String() string { + return FlagStringer(f) +} + +// Names returns the names of the flag +func (f *Uint64Flag) Names() []string { + return flagNames(f.Name, f.Aliases) +} + +// IsRequired returns whether or not the flag is required +func (f *Uint64Flag) IsRequired() bool { + return f.Required +} + +// TakesValue returns true of the flag takes a value, otherwise false +func (f *Uint64Flag) TakesValue() bool { + return true +} + +// GetUsage returns the usage string for the flag +func (f *Uint64Flag) GetUsage() string { + return f.Usage +} + +// Apply populates the flag given the flag set and environment +func (f *Uint64Flag) Apply(set *flag.FlagSet) error { + if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok { + if val != "" { + valInt, err := strconv.ParseUint(val, 0, 64) + if err != nil { + return fmt.Errorf("could not parse %q as uint64 value for flag %s: %s", val, f.Name, err) + } + + f.Value = valInt + f.HasBeenSet = true + } + } + + for _, name := range f.Names() { + if f.Destination != nil { + set.Uint64Var(f.Destination, name, f.Value, f.Usage) + continue + } + set.Uint64(name, f.Value, f.Usage) + } + + return nil +} + +// GetValue returns the flags value as string representation and an empty +// string if the flag takes no value at all. +func (f *Uint64Flag) GetValue() string { + return fmt.Sprintf("%d", f.Value) +} + +// Uint64 looks up the value of a local Uint64Flag, returns +// 0 if not found +func (c *Context) Uint64(name string) uint64 { + if fs := lookupFlagSet(name, c); fs != nil { + return lookupUint64(name, fs) + } + return 0 +} + +func lookupUint64(name string, set *flag.FlagSet) uint64 { + f := set.Lookup(name) + if f != nil { + parsed, err := strconv.ParseUint(f.Value.String(), 0, 64) + if err != nil { + return 0 + } + return parsed + } + return 0 +} diff --git a/vendor/github.com/urfave/cli/v2/funcs.go b/vendor/github.com/urfave/cli/v2/funcs.go new file mode 100644 index 000000000..474c48faf --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/funcs.go @@ -0,0 +1,44 @@ +package cli + +// BashCompleteFunc is an action to execute when the shell completion flag is set +type BashCompleteFunc func(*Context) + +// BeforeFunc is an action to execute before any subcommands are run, but after +// the context is ready if a non-nil error is returned, no subcommands are run +type BeforeFunc func(*Context) error + +// AfterFunc is an action to execute after any subcommands are run, but after the +// subcommand has finished it is run even if Action() panics +type AfterFunc func(*Context) error + +// ActionFunc is the action to execute when no subcommands are specified +type ActionFunc func(*Context) error + +// CommandNotFoundFunc is executed if the proper command cannot be found +type CommandNotFoundFunc func(*Context, string) + +// OnUsageErrorFunc is executed if an usage error occurs. This is useful for displaying +// customized usage error messages. This function is able to replace the +// original error messages. If this function is not set, the "Incorrect usage" +// is displayed and the execution is interrupted. +type OnUsageErrorFunc func(context *Context, err error, isSubcommand bool) error + +// ExitErrHandlerFunc is executed if provided in order to handle exitError values +// returned by Actions and Before/After functions. +type ExitErrHandlerFunc func(context *Context, err error) + +// FlagStringFunc is used by the help generation to display a flag, which is +// expected to be a single line. +type FlagStringFunc func(Flag) string + +// FlagNamePrefixFunc is used by the default FlagStringFunc to create prefix +// text for a flag's full name. +type FlagNamePrefixFunc func(fullName []string, placeholder string) string + +// FlagEnvHintFunc is used by the default FlagStringFunc to annotate flag help +// with the environment variable details. +type FlagEnvHintFunc func(envVars []string, str string) string + +// FlagFileHintFunc is used by the default FlagStringFunc to annotate flag help +// with the file path details. +type FlagFileHintFunc func(filePath, str string) string diff --git a/vendor/github.com/urfave/cli/v2/help.go b/vendor/github.com/urfave/cli/v2/help.go new file mode 100644 index 000000000..c1e974a48 --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/help.go @@ -0,0 +1,368 @@ +package cli + +import ( + "fmt" + "io" + "os" + "strings" + "text/tabwriter" + "text/template" + "unicode/utf8" +) + +var helpCommand = &Command{ + Name: "help", + Aliases: []string{"h"}, + Usage: "Shows a list of commands or help for one command", + ArgsUsage: "[command]", + Action: func(c *Context) error { + args := c.Args() + if args.Present() { + return ShowCommandHelp(c, args.First()) + } + + _ = ShowAppHelp(c) + return nil + }, +} + +var helpSubcommand = &Command{ + Name: "help", + Aliases: []string{"h"}, + Usage: "Shows a list of commands or help for one command", + ArgsUsage: "[command]", + Action: func(c *Context) error { + args := c.Args() + if args.Present() { + return ShowCommandHelp(c, args.First()) + } + + return ShowSubcommandHelp(c) + }, +} + +// Prints help for the App or Command +type helpPrinter func(w io.Writer, templ string, data interface{}) + +// Prints help for the App or Command with custom template function. +type helpPrinterCustom func(w io.Writer, templ string, data interface{}, customFunc map[string]interface{}) + +// HelpPrinter is a function that writes the help output. If not set explicitly, +// this calls HelpPrinterCustom using only the default template functions. +// +// If custom logic for printing help is required, this function can be +// overridden. If the ExtraInfo field is defined on an App, this function +// should not be modified, as HelpPrinterCustom will be used directly in order +// to capture the extra information. +var HelpPrinter helpPrinter = printHelp + +// HelpPrinterCustom is a function that writes the help output. It is used as +// the default implementation of HelpPrinter, and may be called directly if +// the ExtraInfo field is set on an App. +var HelpPrinterCustom helpPrinterCustom = printHelpCustom + +// VersionPrinter prints the version for the App +var VersionPrinter = printVersion + +// ShowAppHelpAndExit - Prints the list of subcommands for the app and exits with exit code. +func ShowAppHelpAndExit(c *Context, exitCode int) { + _ = ShowAppHelp(c) + os.Exit(exitCode) +} + +// ShowAppHelp is an action that displays the help. +func ShowAppHelp(c *Context) error { + template := c.App.CustomAppHelpTemplate + if template == "" { + template = AppHelpTemplate + } + + if c.App.ExtraInfo == nil { + HelpPrinter(c.App.Writer, template, c.App) + return nil + } + + customAppData := func() map[string]interface{} { + return map[string]interface{}{ + "ExtraInfo": c.App.ExtraInfo, + } + } + HelpPrinterCustom(c.App.Writer, template, c.App, customAppData()) + + return nil +} + +// DefaultAppComplete prints the list of subcommands as the default app completion method +func DefaultAppComplete(c *Context) { + DefaultCompleteWithFlags(nil)(c) +} + +func printCommandSuggestions(commands []*Command, writer io.Writer) { + for _, command := range commands { + if command.Hidden { + continue + } + if os.Getenv("_CLI_ZSH_AUTOCOMPLETE_HACK") == "1" { + for _, name := range command.Names() { + _, _ = fmt.Fprintf(writer, "%s:%s\n", name, command.Usage) + } + } else { + for _, name := range command.Names() { + _, _ = fmt.Fprintf(writer, "%s\n", name) + } + } + } +} + +func cliArgContains(flagName string) bool { + for _, name := range strings.Split(flagName, ",") { + name = strings.TrimSpace(name) + count := utf8.RuneCountInString(name) + if count > 2 { + count = 2 + } + flag := fmt.Sprintf("%s%s", strings.Repeat("-", count), name) + for _, a := range os.Args { + if a == flag { + return true + } + } + } + return false +} + +func printFlagSuggestions(lastArg string, flags []Flag, writer io.Writer) { + cur := strings.TrimPrefix(lastArg, "-") + cur = strings.TrimPrefix(cur, "-") + for _, flag := range flags { + if bflag, ok := flag.(*BoolFlag); ok && bflag.Hidden { + continue + } + for _, name := range flag.Names() { + name = strings.TrimSpace(name) + // this will get total count utf8 letters in flag name + count := utf8.RuneCountInString(name) + if count > 2 { + count = 2 // resuse this count to generate single - or -- in flag completion + } + // if flag name has more than one utf8 letter and last argument in cli has -- prefix then + // skip flag completion for short flags example -v or -x + if strings.HasPrefix(lastArg, "--") && count == 1 { + continue + } + // match if last argument matches this flag and it is not repeated + if strings.HasPrefix(name, cur) && cur != name && !cliArgContains(name) { + flagCompletion := fmt.Sprintf("%s%s", strings.Repeat("-", count), name) + _, _ = fmt.Fprintln(writer, flagCompletion) + } + } + } +} + +func DefaultCompleteWithFlags(cmd *Command) func(c *Context) { + return func(c *Context) { + if len(os.Args) > 2 { + lastArg := os.Args[len(os.Args)-2] + if strings.HasPrefix(lastArg, "-") { + printFlagSuggestions(lastArg, c.App.Flags, c.App.Writer) + if cmd != nil { + printFlagSuggestions(lastArg, cmd.Flags, c.App.Writer) + } + return + } + } + if cmd != nil { + printCommandSuggestions(cmd.Subcommands, c.App.Writer) + } else { + printCommandSuggestions(c.App.Commands, c.App.Writer) + } + } +} + +// ShowCommandHelpAndExit - exits with code after showing help +func ShowCommandHelpAndExit(c *Context, command string, code int) { + _ = ShowCommandHelp(c, command) + os.Exit(code) +} + +// ShowCommandHelp prints help for the given command +func ShowCommandHelp(ctx *Context, command string) error { + // show the subcommand help for a command with subcommands + if command == "" { + HelpPrinter(ctx.App.Writer, SubcommandHelpTemplate, ctx.App) + return nil + } + + for _, c := range ctx.App.Commands { + if c.HasName(command) { + templ := c.CustomHelpTemplate + if templ == "" { + templ = CommandHelpTemplate + } + + HelpPrinter(ctx.App.Writer, templ, c) + + return nil + } + } + + if ctx.App.CommandNotFound == nil { + return Exit(fmt.Sprintf("No help topic for '%v'", command), 3) + } + + ctx.App.CommandNotFound(ctx, command) + return nil +} + +// ShowSubcommandHelp prints help for the given subcommand +func ShowSubcommandHelp(c *Context) error { + if c == nil { + return nil + } + + if c.Command != nil { + return ShowCommandHelp(c, c.Command.Name) + } + + return ShowCommandHelp(c, "") +} + +// ShowVersion prints the version number of the App +func ShowVersion(c *Context) { + VersionPrinter(c) +} + +func printVersion(c *Context) { + _, _ = fmt.Fprintf(c.App.Writer, "%v version %v\n", c.App.Name, c.App.Version) +} + +// ShowCompletions prints the lists of commands within a given context +func ShowCompletions(c *Context) { + a := c.App + if a != nil && a.BashComplete != nil { + a.BashComplete(c) + } +} + +// ShowCommandCompletions prints the custom completions for a given command +func ShowCommandCompletions(ctx *Context, command string) { + c := ctx.App.Command(command) + if c != nil { + if c.BashComplete != nil { + c.BashComplete(ctx) + } else { + DefaultCompleteWithFlags(c)(ctx) + } + } + +} + +// printHelpCustom is the default implementation of HelpPrinterCustom. +// +// The customFuncs map will be combined with a default template.FuncMap to +// allow using arbitrary functions in template rendering. +func printHelpCustom(out io.Writer, templ string, data interface{}, customFuncs map[string]interface{}) { + funcMap := template.FuncMap{ + "join": strings.Join, + } + for key, value := range customFuncs { + funcMap[key] = value + } + + w := tabwriter.NewWriter(out, 1, 8, 2, ' ', 0) + t := template.Must(template.New("help").Funcs(funcMap).Parse(templ)) + + err := t.Execute(w, data) + if err != nil { + // If the writer is closed, t.Execute will fail, and there's nothing + // we can do to recover. + if os.Getenv("CLI_TEMPLATE_ERROR_DEBUG") != "" { + _, _ = fmt.Fprintf(ErrWriter, "CLI TEMPLATE ERROR: %#v\n", err) + } + return + } + _ = w.Flush() +} + +func printHelp(out io.Writer, templ string, data interface{}) { + HelpPrinterCustom(out, templ, data, nil) +} + +func checkVersion(c *Context) bool { + found := false + for _, name := range VersionFlag.Names() { + if c.Bool(name) { + found = true + } + } + return found +} + +func checkHelp(c *Context) bool { + found := false + for _, name := range HelpFlag.Names() { + if c.Bool(name) { + found = true + } + } + return found +} + +func checkCommandHelp(c *Context, name string) bool { + if c.Bool("h") || c.Bool("help") { + _ = ShowCommandHelp(c, name) + return true + } + + return false +} + +func checkSubcommandHelp(c *Context) bool { + if c.Bool("h") || c.Bool("help") { + _ = ShowSubcommandHelp(c) + return true + } + + return false +} + +func checkShellCompleteFlag(a *App, arguments []string) (bool, []string) { + if !a.EnableBashCompletion { + return false, arguments + } + + pos := len(arguments) - 1 + lastArg := arguments[pos] + + if lastArg != "--generate-bash-completion" { + return false, arguments + } + + return true, arguments[:pos] +} + +func checkCompletions(c *Context) bool { + if !c.shellComplete { + return false + } + + if args := c.Args(); args.Present() { + name := args.First() + if cmd := c.App.Command(name); cmd != nil { + // let the command handle the completion + return false + } + } + + ShowCompletions(c) + return true +} + +func checkCommandCompletions(c *Context, name string) bool { + if !c.shellComplete { + return false + } + + ShowCommandCompletions(c, name) + return true +} diff --git a/vendor/github.com/urfave/cli/v2/parse.go b/vendor/github.com/urfave/cli/v2/parse.go new file mode 100644 index 000000000..7df17296a --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/parse.go @@ -0,0 +1,94 @@ +package cli + +import ( + "flag" + "strings" +) + +type iterativeParser interface { + newFlagSet() (*flag.FlagSet, error) + useShortOptionHandling() bool +} + +// To enable short-option handling (e.g., "-it" vs "-i -t") we have to +// iteratively catch parsing errors. This way we achieve LR parsing without +// transforming any arguments. Otherwise, there is no way we can discriminate +// combined short options from common arguments that should be left untouched. +// Pass `shellComplete` to continue parsing options on failure during shell +// completion when, the user-supplied options may be incomplete. +func parseIter(set *flag.FlagSet, ip iterativeParser, args []string, shellComplete bool) error { + for { + err := set.Parse(args) + if !ip.useShortOptionHandling() || err == nil { + if shellComplete { + return nil + } + return err + } + + errStr := err.Error() + trimmed := strings.TrimPrefix(errStr, "flag provided but not defined: -") + if errStr == trimmed { + return err + } + + // regenerate the initial args with the split short opts + argsWereSplit := false + for i, arg := range args { + // skip args that are not part of the error message + if name := strings.TrimLeft(arg, "-"); name != trimmed { + continue + } + + // if we can't split, the error was accurate + shortOpts := splitShortOptions(set, arg) + if len(shortOpts) == 1 { + return err + } + + // swap current argument with the split version + args = append(args[:i], append(shortOpts, args[i+1:]...)...) + argsWereSplit = true + break + } + + // This should be an impossible to reach code path, but in case the arg + // splitting failed to happen, this will prevent infinite loops + if !argsWereSplit { + return err + } + + // Since custom parsing failed, replace the flag set before retrying + newSet, err := ip.newFlagSet() + if err != nil { + return err + } + *set = *newSet + } +} + +func splitShortOptions(set *flag.FlagSet, arg string) []string { + shortFlagsExist := func(s string) bool { + for _, c := range s[1:] { + if f := set.Lookup(string(c)); f == nil { + return false + } + } + return true + } + + if !isSplittable(arg) || !shortFlagsExist(arg) { + return []string{arg} + } + + separated := make([]string, 0, len(arg)-1) + for _, flagChar := range arg[1:] { + separated = append(separated, "-"+string(flagChar)) + } + + return separated +} + +func isSplittable(flagArg string) bool { + return strings.HasPrefix(flagArg, "-") && !strings.HasPrefix(flagArg, "--") && len(flagArg) > 2 +} diff --git a/vendor/github.com/urfave/cli/v2/sort.go b/vendor/github.com/urfave/cli/v2/sort.go new file mode 100644 index 000000000..23d1c2f77 --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/sort.go @@ -0,0 +1,29 @@ +package cli + +import "unicode" + +// lexicographicLess compares strings alphabetically considering case. +func lexicographicLess(i, j string) bool { + iRunes := []rune(i) + jRunes := []rune(j) + + lenShared := len(iRunes) + if lenShared > len(jRunes) { + lenShared = len(jRunes) + } + + for index := 0; index < lenShared; index++ { + ir := iRunes[index] + jr := jRunes[index] + + if lir, ljr := unicode.ToLower(ir), unicode.ToLower(jr); lir != ljr { + return lir < ljr + } + + if ir != jr { + return ir < jr + } + } + + return i < j +} diff --git a/vendor/github.com/urfave/cli/v2/template.go b/vendor/github.com/urfave/cli/v2/template.go new file mode 100644 index 000000000..aee3e0494 --- /dev/null +++ b/vendor/github.com/urfave/cli/v2/template.go @@ -0,0 +1,120 @@ +package cli + +// AppHelpTemplate is the text template for the Default help topic. +// cli.go uses text/template to render templates. You can +// render custom help text by setting this variable. +var AppHelpTemplate = `NAME: + {{.Name}}{{if .Usage}} - {{.Usage}}{{end}} + +USAGE: + {{if .UsageText}}{{.UsageText}}{{else}}{{.HelpName}} {{if .VisibleFlags}}[global options]{{end}}{{if .Commands}} command [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}{{if .Version}}{{if not .HideVersion}} + +VERSION: + {{.Version}}{{end}}{{end}}{{if .Description}} + +DESCRIPTION: + {{.Description}}{{end}}{{if len .Authors}} + +AUTHOR{{with $length := len .Authors}}{{if ne 1 $length}}S{{end}}{{end}}: + {{range $index, $author := .Authors}}{{if $index}} + {{end}}{{$author}}{{end}}{{end}}{{if .VisibleCommands}} + +COMMANDS:{{range .VisibleCategories}}{{if .Name}} + {{.Name}}:{{range .VisibleCommands}} + {{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}}{{else}}{{range .VisibleCommands}} + {{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}}{{end}}{{end}}{{end}}{{if .VisibleFlags}} + +GLOBAL OPTIONS: + {{range $index, $option := .VisibleFlags}}{{if $index}} + {{end}}{{$option}}{{end}}{{end}}{{if .Copyright}} + +COPYRIGHT: + {{.Copyright}}{{end}} +` + +// CommandHelpTemplate is the text template for the command help topic. +// cli.go uses text/template to render templates. You can +// render custom help text by setting this variable. +var CommandHelpTemplate = `NAME: + {{.HelpName}} - {{.Usage}} + +USAGE: + {{if .UsageText}}{{.UsageText}}{{else}}{{.HelpName}}{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}{{if .Category}} + +CATEGORY: + {{.Category}}{{end}}{{if .Description}} + +DESCRIPTION: + {{.Description}}{{end}}{{if .VisibleFlags}} + +OPTIONS: + {{range .VisibleFlags}}{{.}} + {{end}}{{end}} +` + +// SubcommandHelpTemplate is the text template for the subcommand help topic. +// cli.go uses text/template to render templates. You can +// render custom help text by setting this variable. +var SubcommandHelpTemplate = `NAME: + {{.HelpName}} - {{.Usage}} + +USAGE: + {{if .UsageText}}{{.UsageText}}{{else}}{{.HelpName}} command{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}{{if .Description}} + +DESCRIPTION: + {{.Description}}{{end}} + +COMMANDS:{{range .VisibleCategories}}{{if .Name}} + {{.Name}}:{{range .VisibleCommands}} + {{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}}{{else}}{{range .VisibleCommands}} + {{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}}{{end}}{{end}}{{if .VisibleFlags}} + +OPTIONS: + {{range .VisibleFlags}}{{.}} + {{end}}{{end}} +` + +var MarkdownDocTemplate = `% {{ .App.Name }} 8 + +# NAME + +{{ .App.Name }}{{ if .App.Usage }} - {{ .App.Usage }}{{ end }} + +# SYNOPSIS + +{{ .App.Name }} +{{ if .SynopsisArgs }} +` + "```" + ` +{{ range $v := .SynopsisArgs }}{{ $v }}{{ end }}` + "```" + ` +{{ end }}{{ if .App.UsageText }} +# DESCRIPTION + +{{ .App.UsageText }} +{{ end }} +**Usage**: + +` + "```" + ` +{{ .App.Name }} [GLOBAL OPTIONS] command [COMMAND OPTIONS] [ARGUMENTS...] +` + "```" + ` +{{ if .GlobalArgs }} +# GLOBAL OPTIONS +{{ range $v := .GlobalArgs }} +{{ $v }}{{ end }} +{{ end }}{{ if .Commands }} +# COMMANDS +{{ range $v := .Commands }} +{{ $v }}{{ end }}{{ end }}` + +var FishCompletionTemplate = `# {{ .App.Name }} fish shell completion + +function __fish_{{ .App.Name }}_no_subcommand --description 'Test if there has been any subcommand yet' + for i in (commandline -opc) + if contains -- $i{{ range $v := .AllCommands }} {{ $v }}{{ end }} + return 1 + end + end + return 0 +end + +{{ range $v := .Completions }}{{ $v }} +{{ end }}` diff --git a/vendor/github.com/vishvananda/netlink/.gitignore b/vendor/github.com/vishvananda/netlink/.gitignore index 9f11b755a..66f8fb502 100644 --- a/vendor/github.com/vishvananda/netlink/.gitignore +++ b/vendor/github.com/vishvananda/netlink/.gitignore @@ -1 +1,2 @@ .idea/ +.vscode/ diff --git a/vendor/github.com/vishvananda/netlink/.travis.yml b/vendor/github.com/vishvananda/netlink/.travis.yml deleted file mode 100644 index 7d14af4d6..000000000 --- a/vendor/github.com/vishvananda/netlink/.travis.yml +++ /dev/null @@ -1,19 +0,0 @@ -language: go -go: - - "1.10.x" - - "1.11.x" - - "1.12.x" -before_script: - # make sure we keep path in tact when we sudo - - sudo sed -i -e 's/^Defaults\tsecure_path.*$//' /etc/sudoers - # modprobe ip_gre or else the first gre device can't be deleted - - sudo modprobe ip_gre - # modprobe nf_conntrack for the conntrack testing - - sudo modprobe nf_conntrack - - sudo modprobe nf_conntrack_netlink - - sudo modprobe nf_conntrack_ipv4 - - sudo modprobe nf_conntrack_ipv6 - - sudo modprobe sch_hfsc -install: - - go get github.com/vishvananda/netns -go_import_path: github.com/vishvananda/netlink diff --git a/vendor/github.com/vishvananda/netlink/README.md b/vendor/github.com/vishvananda/netlink/README.md index a88e2f418..0128bc67d 100644 --- a/vendor/github.com/vishvananda/netlink/README.md +++ b/vendor/github.com/vishvananda/netlink/README.md @@ -1,6 +1,6 @@ # netlink - netlink library for go # -[![Build Status](https://travis-ci.org/vishvananda/netlink.png?branch=master)](https://travis-ci.org/vishvananda/netlink) [![GoDoc](https://godoc.org/github.com/vishvananda/netlink?status.svg)](https://godoc.org/github.com/vishvananda/netlink) +![Build Status](https://github.com/vishvananda/netlink/actions/workflows/main.yml/badge.svg) [![GoDoc](https://godoc.org/github.com/vishvananda/netlink?status.svg)](https://godoc.org/github.com/vishvananda/netlink) The netlink package provides a simple netlink library for go. Netlink is the interface a user-space program in linux uses to communicate with diff --git a/vendor/github.com/vishvananda/netlink/addr.go b/vendor/github.com/vishvananda/netlink/addr.go index f08c95696..653f540db 100644 --- a/vendor/github.com/vishvananda/netlink/addr.go +++ b/vendor/github.com/vishvananda/netlink/addr.go @@ -17,6 +17,7 @@ type Addr struct { Broadcast net.IP PreferedLft int ValidLft int + LinkIndex int } // String returns $ip/$netmask $label diff --git a/vendor/github.com/vishvananda/netlink/addr_linux.go b/vendor/github.com/vishvananda/netlink/addr_linux.go index 28746d5af..218ab2379 100644 --- a/vendor/github.com/vishvananda/netlink/addr_linux.go +++ b/vendor/github.com/vishvananda/netlink/addr_linux.go @@ -11,9 +11,6 @@ import ( "golang.org/x/sys/unix" ) -// IFA_FLAGS is a u32 attribute. -const IFA_FLAGS = 0x8 - // AddrAdd will add an IP address to a link device. // // Equivalent to: `ip addr add $addr dev $link` @@ -77,17 +74,19 @@ func (h *Handle) AddrDel(link Link, addr *Addr) error { } func (h *Handle) addrHandle(link Link, addr *Addr, req *nl.NetlinkRequest) error { - base := link.Attrs() - if addr.Label != "" && !strings.HasPrefix(addr.Label, base.Name) { - return fmt.Errorf("label must begin with interface name") - } - h.ensureIndex(base) - family := nl.GetIPFamily(addr.IP) - msg := nl.NewIfAddrmsg(family) - msg.Index = uint32(base.Index) msg.Scope = uint8(addr.Scope) + if link == nil { + msg.Index = uint32(addr.LinkIndex) + } else { + base := link.Attrs() + if addr.Label != "" && !strings.HasPrefix(addr.Label, base.Name) { + return fmt.Errorf("label must begin with interface name") + } + h.ensureIndex(base) + msg.Index = uint32(base.Index) + } mask := addr.Mask if addr.Peer != nil { mask = addr.Peer.Mask @@ -125,7 +124,7 @@ func (h *Handle) addrHandle(link Link, addr *Addr, req *nl.NetlinkRequest) error } else { b := make([]byte, 4) native.PutUint32(b, uint32(addr.Flags)) - flagsData := nl.NewRtAttr(IFA_FLAGS, b) + flagsData := nl.NewRtAttr(unix.IFA_FLAGS, b) req.AddData(flagsData) } } @@ -156,10 +155,10 @@ func (h *Handle) addrHandle(link Link, addr *Addr, req *nl.NetlinkRequest) error // value should be "forever". To compensate for that, only add the attributes if at least one of the values is // non-zero, which means the caller has explicitly set them if addr.ValidLft > 0 || addr.PreferedLft > 0 { - cachedata := nl.IfaCacheInfo{ - IfaValid: uint32(addr.ValidLft), - IfaPrefered: uint32(addr.PreferedLft), - } + cachedata := nl.IfaCacheInfo{unix.IfaCacheinfo{ + Valid: uint32(addr.ValidLft), + Prefered: uint32(addr.PreferedLft), + }} req.AddData(nl.NewRtAttr(unix.IFA_CACHEINFO, cachedata.Serialize())) } @@ -179,7 +178,7 @@ func AddrList(link Link, family int) ([]Addr, error) { // The list can be filtered by link and ip family. func (h *Handle) AddrList(link Link, family int) ([]Addr, error) { req := h.newNetlinkRequest(unix.RTM_GETADDR, unix.NLM_F_DUMP) - msg := nl.NewIfInfomsg(family) + msg := nl.NewIfAddrmsg(family) req.AddData(msg) msgs, err := req.Execute(unix.NETLINK_ROUTE, unix.RTM_NEWADDR) @@ -196,12 +195,12 @@ func (h *Handle) AddrList(link Link, family int) ([]Addr, error) { var res []Addr for _, m := range msgs { - addr, msgFamily, ifindex, err := parseAddr(m) + addr, msgFamily, err := parseAddr(m) if err != nil { return res, err } - if link != nil && ifindex != indexFilter { + if link != nil && addr.LinkIndex != indexFilter { // Ignore messages from other interfaces continue } @@ -216,11 +215,11 @@ func (h *Handle) AddrList(link Link, family int) ([]Addr, error) { return res, nil } -func parseAddr(m []byte) (addr Addr, family, index int, err error) { +func parseAddr(m []byte) (addr Addr, family int, err error) { msg := nl.DeserializeIfAddrmsg(m) family = -1 - index = -1 + addr.LinkIndex = -1 attrs, err1 := nl.ParseRouteAttr(m[msg.Len():]) if err1 != nil { @@ -229,7 +228,7 @@ func parseAddr(m []byte) (addr Addr, family, index int, err error) { } family = int(msg.Family) - index = int(msg.Index) + addr.LinkIndex = int(msg.Index) var local, dst *net.IPNet for _, attr := range attrs { @@ -254,12 +253,12 @@ func parseAddr(m []byte) (addr Addr, family, index int, err error) { addr.Broadcast = attr.Value case unix.IFA_LABEL: addr.Label = string(attr.Value[:len(attr.Value)-1]) - case IFA_FLAGS: + case unix.IFA_FLAGS: addr.Flags = int(native.Uint32(attr.Value[0:4])) - case nl.IFA_CACHEINFO: + case unix.IFA_CACHEINFO: ci := nl.DeserializeIfaCacheInfo(attr.Value) - addr.PreferedLft = int(ci.IfaPrefered) - addr.ValidLft = int(ci.IfaValid) + addr.PreferedLft = int(ci.Prefered) + addr.ValidLft = int(ci.Valid) } } @@ -271,7 +270,7 @@ func parseAddr(m []byte) (addr Addr, family, index int, err error) { // But obviously, as there are IPv6 PtP addresses, too, // IFA_LOCAL should also be handled for IPv6. if local != nil { - if family == FAMILY_V4 && local.IP.Equal(dst.IP) { + if family == FAMILY_V4 && dst != nil && local.IP.Equal(dst.IP) { addr.IPNet = dst } else { addr.IPNet = local @@ -299,22 +298,24 @@ type AddrUpdate struct { // AddrSubscribe takes a chan down which notifications will be sent // when addresses change. Close the 'done' chan to stop subscription. func AddrSubscribe(ch chan<- AddrUpdate, done <-chan struct{}) error { - return addrSubscribeAt(netns.None(), netns.None(), ch, done, nil, false, 0) + return addrSubscribeAt(netns.None(), netns.None(), ch, done, nil, false, 0, nil, false) } // AddrSubscribeAt works like AddrSubscribe plus it allows the caller // to choose the network namespace in which to subscribe (ns). func AddrSubscribeAt(ns netns.NsHandle, ch chan<- AddrUpdate, done <-chan struct{}) error { - return addrSubscribeAt(ns, netns.None(), ch, done, nil, false, 0) + return addrSubscribeAt(ns, netns.None(), ch, done, nil, false, 0, nil, false) } // AddrSubscribeOptions contains a set of options to use with // AddrSubscribeWithOptions. type AddrSubscribeOptions struct { - Namespace *netns.NsHandle - ErrorCallback func(error) - ListExisting bool - ReceiveBufferSize int + Namespace *netns.NsHandle + ErrorCallback func(error) + ListExisting bool + ReceiveBufferSize int + ReceiveBufferForceSize bool + ReceiveTimeout *unix.Timeval } // AddrSubscribeWithOptions work like AddrSubscribe but enable to @@ -325,26 +326,33 @@ func AddrSubscribeWithOptions(ch chan<- AddrUpdate, done <-chan struct{}, option none := netns.None() options.Namespace = &none } - return addrSubscribeAt(*options.Namespace, netns.None(), ch, done, options.ErrorCallback, options.ListExisting, options.ReceiveBufferSize) + return addrSubscribeAt(*options.Namespace, netns.None(), ch, done, options.ErrorCallback, options.ListExisting, + options.ReceiveBufferSize, options.ReceiveTimeout, options.ReceiveBufferForceSize) } -func addrSubscribeAt(newNs, curNs netns.NsHandle, ch chan<- AddrUpdate, done <-chan struct{}, cberr func(error), listExisting bool, rcvbuf int) error { +func addrSubscribeAt(newNs, curNs netns.NsHandle, ch chan<- AddrUpdate, done <-chan struct{}, cberr func(error), listExisting bool, + rcvbuf int, rcvTimeout *unix.Timeval, rcvBufForce bool) error { s, err := nl.SubscribeAt(newNs, curNs, unix.NETLINK_ROUTE, unix.RTNLGRP_IPV4_IFADDR, unix.RTNLGRP_IPV6_IFADDR) if err != nil { return err } - if done != nil { - go func() { - <-done - s.Close() - }() + if rcvTimeout != nil { + if err := s.SetReceiveTimeout(rcvTimeout); err != nil { + return err + } } if rcvbuf != 0 { - err = pkgHandle.SetSocketReceiveBufferSize(rcvbuf, false) + err = s.SetReceiveBufferSize(rcvbuf, rcvBufForce) if err != nil { return err } } + if done != nil { + go func() { + <-done + s.Close() + }() + } if listExisting { req := pkgHandle.newNetlinkRequest(unix.RTM_GETADDR, unix.NLM_F_DUMP) @@ -360,7 +368,8 @@ func addrSubscribeAt(newNs, curNs netns.NsHandle, ch chan<- AddrUpdate, done <-c msgs, from, err := s.Receive() if err != nil { if cberr != nil { - cberr(err) + cberr(fmt.Errorf("Receive failed: %v", + err)) } return } @@ -375,7 +384,6 @@ func addrSubscribeAt(newNs, curNs netns.NsHandle, ch chan<- AddrUpdate, done <-c continue } if m.Header.Type == unix.NLMSG_ERROR { - native := nl.NativeEndian() error := int32(native.Uint32(m.Data[0:4])) if error == 0 { continue @@ -394,7 +402,7 @@ func addrSubscribeAt(newNs, curNs netns.NsHandle, ch chan<- AddrUpdate, done <-c continue } - addr, _, ifindex, err := parseAddr(m.Data) + addr, _, err := parseAddr(m.Data) if err != nil { if cberr != nil { cberr(fmt.Errorf("could not parse address: %v", err)) @@ -403,7 +411,7 @@ func addrSubscribeAt(newNs, curNs netns.NsHandle, ch chan<- AddrUpdate, done <-c } ch <- AddrUpdate{LinkAddress: *addr.IPNet, - LinkIndex: ifindex, + LinkIndex: addr.LinkIndex, NewAddr: msgType == unix.RTM_NEWADDR, Flags: addr.Flags, Scope: addr.Scope, diff --git a/vendor/github.com/vishvananda/netlink/bpf_linux.go b/vendor/github.com/vishvananda/netlink/bpf_linux.go index 6631626bf..96befbfe0 100644 --- a/vendor/github.com/vishvananda/netlink/bpf_linux.go +++ b/vendor/github.com/vishvananda/netlink/bpf_linux.go @@ -16,6 +16,30 @@ const ( BPF_PROG_TYPE_SCHED_ACT BPF_PROG_TYPE_TRACEPOINT BPF_PROG_TYPE_XDP + BPF_PROG_TYPE_PERF_EVENT + BPF_PROG_TYPE_CGROUP_SKB + BPF_PROG_TYPE_CGROUP_SOCK + BPF_PROG_TYPE_LWT_IN + BPF_PROG_TYPE_LWT_OUT + BPF_PROG_TYPE_LWT_XMIT + BPF_PROG_TYPE_SOCK_OPS + BPF_PROG_TYPE_SK_SKB + BPF_PROG_TYPE_CGROUP_DEVICE + BPF_PROG_TYPE_SK_MSG + BPF_PROG_TYPE_RAW_TRACEPOINT + BPF_PROG_TYPE_CGROUP_SOCK_ADDR + BPF_PROG_TYPE_LWT_SEG6LOCAL + BPF_PROG_TYPE_LIRC_MODE2 + BPF_PROG_TYPE_SK_REUSEPORT + BPF_PROG_TYPE_FLOW_DISSECTOR + BPF_PROG_TYPE_CGROUP_SYSCTL + BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE + BPF_PROG_TYPE_CGROUP_SOCKOPT + BPF_PROG_TYPE_TRACING + BPF_PROG_TYPE_STRUCT_OPS + BPF_PROG_TYPE_EXT + BPF_PROG_TYPE_LSM + BPF_PROG_TYPE_SK_LOOKUP ) type BPFAttr struct { diff --git a/vendor/github.com/vishvananda/netlink/bridge_linux.go b/vendor/github.com/vishvananda/netlink/bridge_linux.go index 6e1224c47..6c340b0ce 100644 --- a/vendor/github.com/vishvananda/netlink/bridge_linux.go +++ b/vendor/github.com/vishvananda/netlink/bridge_linux.go @@ -63,7 +63,19 @@ func BridgeVlanAdd(link Link, vid uint16, pvid, untagged, self, master bool) err // BridgeVlanAdd adds a new vlan filter entry // Equivalent to: `bridge vlan add dev DEV vid VID [ pvid ] [ untagged ] [ self ] [ master ]` func (h *Handle) BridgeVlanAdd(link Link, vid uint16, pvid, untagged, self, master bool) error { - return h.bridgeVlanModify(unix.RTM_SETLINK, link, vid, pvid, untagged, self, master) + return h.bridgeVlanModify(unix.RTM_SETLINK, link, vid, 0, pvid, untagged, self, master) +} + +// BridgeVlanAddRange adds a new vlan filter entry +// Equivalent to: `bridge vlan add dev DEV vid VID-VIDEND [ pvid ] [ untagged ] [ self ] [ master ]` +func BridgeVlanAddRange(link Link, vid, vidEnd uint16, pvid, untagged, self, master bool) error { + return pkgHandle.BridgeVlanAddRange(link, vid, vidEnd, pvid, untagged, self, master) +} + +// BridgeVlanAddRange adds a new vlan filter entry +// Equivalent to: `bridge vlan add dev DEV vid VID-VIDEND [ pvid ] [ untagged ] [ self ] [ master ]` +func (h *Handle) BridgeVlanAddRange(link Link, vid, vidEnd uint16, pvid, untagged, self, master bool) error { + return h.bridgeVlanModify(unix.RTM_SETLINK, link, vid, vidEnd, pvid, untagged, self, master) } // BridgeVlanDel adds a new vlan filter entry @@ -75,10 +87,22 @@ func BridgeVlanDel(link Link, vid uint16, pvid, untagged, self, master bool) err // BridgeVlanDel adds a new vlan filter entry // Equivalent to: `bridge vlan del dev DEV vid VID [ pvid ] [ untagged ] [ self ] [ master ]` func (h *Handle) BridgeVlanDel(link Link, vid uint16, pvid, untagged, self, master bool) error { - return h.bridgeVlanModify(unix.RTM_DELLINK, link, vid, pvid, untagged, self, master) + return h.bridgeVlanModify(unix.RTM_DELLINK, link, vid, 0, pvid, untagged, self, master) } -func (h *Handle) bridgeVlanModify(cmd int, link Link, vid uint16, pvid, untagged, self, master bool) error { +// BridgeVlanDelRange adds a new vlan filter entry +// Equivalent to: `bridge vlan del dev DEV vid VID-VIDEND [ pvid ] [ untagged ] [ self ] [ master ]` +func BridgeVlanDelRange(link Link, vid, vidEnd uint16, pvid, untagged, self, master bool) error { + return pkgHandle.BridgeVlanDelRange(link, vid, vidEnd, pvid, untagged, self, master) +} + +// BridgeVlanDelRange adds a new vlan filter entry +// Equivalent to: `bridge vlan del dev DEV vid VID-VIDEND [ pvid ] [ untagged ] [ self ] [ master ]` +func (h *Handle) BridgeVlanDelRange(link Link, vid, vidEnd uint16, pvid, untagged, self, master bool) error { + return h.bridgeVlanModify(unix.RTM_DELLINK, link, vid, vidEnd, pvid, untagged, self, master) +} + +func (h *Handle) bridgeVlanModify(cmd int, link Link, vid, vidEnd uint16, pvid, untagged, self, master bool) error { base := link.Attrs() h.ensureIndex(base) req := h.newNetlinkRequest(cmd, unix.NLM_F_ACK) @@ -105,7 +129,20 @@ func (h *Handle) bridgeVlanModify(cmd int, link Link, vid uint16, pvid, untagged if untagged { vlanInfo.Flags |= nl.BRIDGE_VLAN_INFO_UNTAGGED } - br.AddRtAttr(nl.IFLA_BRIDGE_VLAN_INFO, vlanInfo.Serialize()) + + if vidEnd != 0 { + vlanEndInfo := &nl.BridgeVlanInfo{Vid: vidEnd} + vlanEndInfo.Flags = vlanInfo.Flags + + vlanInfo.Flags |= nl.BRIDGE_VLAN_INFO_RANGE_BEGIN + br.AddRtAttr(nl.IFLA_BRIDGE_VLAN_INFO, vlanInfo.Serialize()) + + vlanEndInfo.Flags |= nl.BRIDGE_VLAN_INFO_RANGE_END + br.AddRtAttr(nl.IFLA_BRIDGE_VLAN_INFO, vlanEndInfo.Serialize()) + } else { + br.AddRtAttr(nl.IFLA_BRIDGE_VLAN_INFO, vlanInfo.Serialize()) + } + req.AddData(br) _, err := req.Execute(unix.NETLINK_ROUTE, 0) return err diff --git a/vendor/github.com/vishvananda/netlink/chain.go b/vendor/github.com/vishvananda/netlink/chain.go new file mode 100644 index 000000000..1d1c144e9 --- /dev/null +++ b/vendor/github.com/vishvananda/netlink/chain.go @@ -0,0 +1,22 @@ +package netlink + +import ( + "fmt" +) + +// Chain contains the attributes of a Chain +type Chain struct { + Parent uint32 + Chain uint32 +} + +func (c Chain) String() string { + return fmt.Sprintf("{Parent: %d, Chain: %d}", c.Parent, c.Chain) +} + +func NewChain(parent uint32, chain uint32) Chain { + return Chain{ + Parent: parent, + Chain: chain, + } +} diff --git a/vendor/github.com/vishvananda/netlink/chain_linux.go b/vendor/github.com/vishvananda/netlink/chain_linux.go new file mode 100644 index 000000000..d9f441613 --- /dev/null +++ b/vendor/github.com/vishvananda/netlink/chain_linux.go @@ -0,0 +1,112 @@ +package netlink + +import ( + "github.com/vishvananda/netlink/nl" + "golang.org/x/sys/unix" +) + +// ChainDel will delete a chain from the system. +func ChainDel(link Link, chain Chain) error { + // Equivalent to: `tc chain del $chain` + return pkgHandle.ChainDel(link, chain) +} + +// ChainDel will delete a chain from the system. +// Equivalent to: `tc chain del $chain` +func (h *Handle) ChainDel(link Link, chain Chain) error { + return h.chainModify(unix.RTM_DELCHAIN, 0, link, chain) +} + +// ChainAdd will add a chain to the system. +// Equivalent to: `tc chain add` +func ChainAdd(link Link, chain Chain) error { + return pkgHandle.ChainAdd(link, chain) +} + +// ChainAdd will add a chain to the system. +// Equivalent to: `tc chain add` +func (h *Handle) ChainAdd(link Link, chain Chain) error { + return h.chainModify( + unix.RTM_NEWCHAIN, + unix.NLM_F_CREATE|unix.NLM_F_EXCL, + link, + chain) +} + +func (h *Handle) chainModify(cmd, flags int, link Link, chain Chain) error { + req := h.newNetlinkRequest(cmd, flags|unix.NLM_F_ACK) + index := int32(0) + if link != nil { + base := link.Attrs() + h.ensureIndex(base) + index = int32(base.Index) + } + msg := &nl.TcMsg{ + Family: nl.FAMILY_ALL, + Ifindex: index, + Parent: chain.Parent, + } + req.AddData(msg) + req.AddData(nl.NewRtAttr(nl.TCA_CHAIN, nl.Uint32Attr(chain.Chain))) + + _, err := req.Execute(unix.NETLINK_ROUTE, 0) + return err +} + +// ChainList gets a list of chains in the system. +// Equivalent to: `tc chain list`. +// The list can be filtered by link. +func ChainList(link Link, parent uint32) ([]Chain, error) { + return pkgHandle.ChainList(link, parent) +} + +// ChainList gets a list of chains in the system. +// Equivalent to: `tc chain list`. +// The list can be filtered by link. +func (h *Handle) ChainList(link Link, parent uint32) ([]Chain, error) { + req := h.newNetlinkRequest(unix.RTM_GETCHAIN, unix.NLM_F_DUMP) + index := int32(0) + if link != nil { + base := link.Attrs() + h.ensureIndex(base) + index = int32(base.Index) + } + msg := &nl.TcMsg{ + Family: nl.FAMILY_ALL, + Ifindex: index, + Parent: parent, + } + req.AddData(msg) + + msgs, err := req.Execute(unix.NETLINK_ROUTE, unix.RTM_NEWCHAIN) + if err != nil { + return nil, err + } + + var res []Chain + for _, m := range msgs { + msg := nl.DeserializeTcMsg(m) + + attrs, err := nl.ParseRouteAttr(m[msg.Len():]) + if err != nil { + return nil, err + } + + // skip chains from other interfaces + if link != nil && msg.Ifindex != index { + continue + } + + var chain Chain + for _, attr := range attrs { + switch attr.Attr.Type { + case nl.TCA_CHAIN: + chain.Chain = native.Uint32(attr.Value) + chain.Parent = parent + } + } + res = append(res, chain) + } + + return res, nil +} diff --git a/vendor/github.com/vishvananda/netlink/class.go b/vendor/github.com/vishvananda/netlink/class.go index dcc22d9e9..e686f6745 100644 --- a/vendor/github.com/vishvananda/netlink/class.go +++ b/vendor/github.com/vishvananda/netlink/class.go @@ -47,6 +47,7 @@ type ClassStatistics struct { Basic *GnetStatsBasic Queue *GnetStatsQueue RateEst *GnetStatsRateEst + BasicHw *GnetStatsBasic // Hardward statistics added in kernel 4.20 } // NewClassStatistics Construct a ClassStatistics struct which fields are all initialized by 0. @@ -55,6 +56,7 @@ func NewClassStatistics() *ClassStatistics { Basic: &GnetStatsBasic{}, Queue: &GnetStatsQueue{}, RateEst: &GnetStatsRateEst{}, + BasicHw: &GnetStatsBasic{}, } } @@ -132,7 +134,10 @@ func (class *GenericClass) Type() string { return class.ClassType } -// ServiceCurve is the way the HFSC curve are represented +// ServiceCurve is a nondecreasing function of some time unit, returning the amount of service +// (an allowed or allocated amount of bandwidth) at some specific point in time. The purpose of it +// should be subconsciously obvious: if a class was allowed to transfer not less than the amount +// specified by its service curve, then the service curve is not violated. type ServiceCurve struct { m1 uint32 d uint32 @@ -144,6 +149,21 @@ func (c *ServiceCurve) Attrs() (uint32, uint32, uint32) { return c.m1, c.d, c.m2 } +// Burst returns the burst rate (m1) of the curve +func (c *ServiceCurve) Burst() uint32 { + return c.m1 +} + +// Delay return the delay (d) of the curve +func (c *ServiceCurve) Delay() uint32 { + return c.d +} + +// Rate returns the rate (m2) of the curve +func (c *ServiceCurve) Rate() uint32 { + return c.m2 +} + // HfscClass is a representation of the HFSC class type HfscClass struct { ClassAttrs @@ -152,35 +172,44 @@ type HfscClass struct { Usc ServiceCurve } -// SetUsc sets the Usc curve +// SetUsc sets the USC curve. The bandwidth (m1 and m2) is specified in bits and the delay in +// seconds. func (hfsc *HfscClass) SetUsc(m1 uint32, d uint32, m2 uint32) { - hfsc.Usc = ServiceCurve{m1: m1 / 8, d: d, m2: m2 / 8} + hfsc.Usc = ServiceCurve{m1: m1, d: d, m2: m2} } -// SetFsc sets the Fsc curve +// SetFsc sets the Fsc curve. The bandwidth (m1 and m2) is specified in bits and the delay in +// seconds. func (hfsc *HfscClass) SetFsc(m1 uint32, d uint32, m2 uint32) { - hfsc.Fsc = ServiceCurve{m1: m1 / 8, d: d, m2: m2 / 8} + hfsc.Fsc = ServiceCurve{m1: m1, d: d, m2: m2} } -// SetRsc sets the Rsc curve +// SetRsc sets the Rsc curve. The bandwidth (m1 and m2) is specified in bits and the delay in +// seconds. func (hfsc *HfscClass) SetRsc(m1 uint32, d uint32, m2 uint32) { - hfsc.Rsc = ServiceCurve{m1: m1 / 8, d: d, m2: m2 / 8} + hfsc.Rsc = ServiceCurve{m1: m1, d: d, m2: m2} } -// SetSC implements the SC from the tc CLI +// SetSC implements the SC from the `tc` CLI. This function behaves the same as if one would set the +// USC through the `tc` command-line tool. This means bandwidth (m1 and m2) is specified in bits and +// the delay in ms. func (hfsc *HfscClass) SetSC(m1 uint32, d uint32, m2 uint32) { - hfsc.Rsc = ServiceCurve{m1: m1 / 8, d: d, m2: m2 / 8} - hfsc.Fsc = ServiceCurve{m1: m1 / 8, d: d, m2: m2 / 8} + hfsc.SetRsc(m1, d, m2) + hfsc.SetFsc(m1, d, m2) } -// SetUL implements the UL from the tc CLI +// SetUL implements the UL from the `tc` CLI. This function behaves the same as if one would set the +// USC through the `tc` command-line tool. This means bandwidth (m1 and m2) is specified in bits and +// the delay in ms. func (hfsc *HfscClass) SetUL(m1 uint32, d uint32, m2 uint32) { - hfsc.Usc = ServiceCurve{m1: m1 / 8, d: d, m2: m2 / 8} + hfsc.SetUsc(m1, d, m2) } -// SetLS implements the LS from the tc CLI +// SetLS implements the LS from the `tc` CLI. This function behaves the same as if one would set the +// USC through the `tc` command-line tool. This means bandwidth (m1 and m2) is specified in bits and +// the delay in ms. func (hfsc *HfscClass) SetLS(m1 uint32, d uint32, m2 uint32) { - hfsc.Fsc = ServiceCurve{m1: m1 / 8, d: d, m2: m2 / 8} + hfsc.SetFsc(m1, d, m2) } // NewHfscClass returns a new HFSC struct with the set parameters @@ -193,6 +222,7 @@ func NewHfscClass(attrs ClassAttrs) *HfscClass { } } +// String() returns a string that contains the information and attributes of the HFSC class func (hfsc *HfscClass) String() string { return fmt.Sprintf( "{%s -- {RSC: {m1=%d d=%d m2=%d}} {FSC: {m1=%d d=%d m2=%d}} {USC: {m1=%d d=%d m2=%d}}}", diff --git a/vendor/github.com/vishvananda/netlink/class_linux.go b/vendor/github.com/vishvananda/netlink/class_linux.go index 31091e501..a82eb09de 100644 --- a/vendor/github.com/vishvananda/netlink/class_linux.go +++ b/vendor/github.com/vishvananda/netlink/class_linux.go @@ -43,12 +43,12 @@ func NewHtbClass(attrs ClassAttrs, cattrs HtbClassAttrs) *HtbClass { if buffer == 0 { buffer = uint32(float64(rate)/Hz() + float64(mtu)) } - buffer = uint32(Xmittime(rate, buffer)) + buffer = Xmittime(rate, buffer) if cbuffer == 0 { cbuffer = uint32(float64(ceil)/Hz() + float64(mtu)) } - cbuffer = uint32(Xmittime(ceil, cbuffer)) + cbuffer = Xmittime(ceil, cbuffer) return &HtbClass{ ClassAttrs: attrs, @@ -56,9 +56,9 @@ func NewHtbClass(attrs ClassAttrs, cattrs HtbClassAttrs) *HtbClass { Ceil: ceil, Buffer: buffer, Cbuffer: cbuffer, - Quantum: 10, Level: 0, - Prio: 0, + Prio: cattrs.Prio, + Quantum: cattrs.Quantum, } } @@ -176,12 +176,21 @@ func classPayload(req *nl.NetlinkRequest, class Class) error { options.AddRtAttr(nl.TCA_HTB_PARMS, opt.Serialize()) options.AddRtAttr(nl.TCA_HTB_RTAB, SerializeRtab(rtab)) options.AddRtAttr(nl.TCA_HTB_CTAB, SerializeRtab(ctab)) + if htb.Rate >= uint64(1<<32) { + options.AddRtAttr(nl.TCA_HTB_RATE64, nl.Uint64Attr(htb.Rate)) + } + if htb.Ceil >= uint64(1<<32) { + options.AddRtAttr(nl.TCA_HTB_CEIL64, nl.Uint64Attr(htb.Ceil)) + } case "hfsc": hfsc := class.(*HfscClass) opt := nl.HfscCopt{} - opt.Rsc.Set(hfsc.Rsc.Attrs()) - opt.Fsc.Set(hfsc.Fsc.Attrs()) - opt.Usc.Set(hfsc.Usc.Attrs()) + rm1, rd, rm2 := hfsc.Rsc.Attrs() + opt.Rsc.Set(rm1/8, rd, rm2/8) + fm1, fd, fm2 := hfsc.Fsc.Attrs() + opt.Fsc.Set(fm1/8, fd, fm2/8) + um1, ud, um2 := hfsc.Usc.Attrs() + opt.Usc.Set(um1/8, ud, um2/8) options.AddRtAttr(nl.TCA_HFSC_RSC, nl.SerializeHfscCurve(&opt.Rsc)) options.AddRtAttr(nl.TCA_HFSC_FSC, nl.SerializeHfscCurve(&opt.Fsc)) options.AddRtAttr(nl.TCA_HFSC_USC, nl.SerializeHfscCurve(&opt.Usc)) @@ -303,6 +312,10 @@ func parseHtbClassData(class Class, data []syscall.NetlinkRouteAttr) (bool, erro htb.Quantum = opt.Quantum htb.Level = opt.Level htb.Prio = opt.Prio + case nl.TCA_HTB_RATE64: + htb.Rate = native.Uint64(datum.Value[0:8]) + case nl.TCA_HTB_CEIL64: + htb.Ceil = native.Uint64(datum.Value[0:8]) } } return detailed, nil @@ -315,11 +328,11 @@ func parseHfscClassData(class Class, data []syscall.NetlinkRouteAttr) (bool, err m1, d, m2 := nl.DeserializeHfscCurve(datum.Value).Attrs() switch datum.Attr.Type { case nl.TCA_HFSC_RSC: - hfsc.Rsc = ServiceCurve{m1: m1, d: d, m2: m2} + hfsc.Rsc = ServiceCurve{m1: m1 * 8, d: d, m2: m2 * 8} case nl.TCA_HFSC_FSC: - hfsc.Fsc = ServiceCurve{m1: m1, d: d, m2: m2} + hfsc.Fsc = ServiceCurve{m1: m1 * 8, d: d, m2: m2 * 8} case nl.TCA_HFSC_USC: - hfsc.Usc = ServiceCurve{m1: m1, d: d, m2: m2} + hfsc.Usc = ServiceCurve{m1: m1 * 8, d: d, m2: m2 * 8} } } return detailed, nil @@ -328,7 +341,6 @@ func parseHfscClassData(class Class, data []syscall.NetlinkRouteAttr) (bool, err func parseTcStats(data []byte) (*ClassStatistics, error) { buf := &bytes.Buffer{} buf.Write(data) - native := nl.NativeEndian() tcStats := &tcStats{} if err := binary.Read(buf, native, tcStats); err != nil { return nil, err @@ -350,7 +362,6 @@ func parseTcStats(data []byte) (*ClassStatistics, error) { func parseGnetStats(data []byte, gnetStats interface{}) error { buf := &bytes.Buffer{} buf.Write(data) - native := nl.NativeEndian() return binary.Read(buf, native, gnetStats) } @@ -377,6 +388,11 @@ func parseTcStats2(data []byte) (*ClassStatistics, error) { return nil, fmt.Errorf("Failed to parse ClassStatistics.RateEst with: %v\n%s", err, hex.Dump(datum.Value)) } + case nl.TCA_STATS_BASIC_HW: + if err := parseGnetStats(datum.Value, stats.BasicHw); err != nil { + return nil, fmt.Errorf("Failed to parse ClassStatistics.BasicHw with: %v\n%s", + err, hex.Dump(datum.Value)) + } } } diff --git a/vendor/github.com/vishvananda/netlink/conntrack_linux.go b/vendor/github.com/vishvananda/netlink/conntrack_linux.go index 4bff0dcba..ba022453b 100644 --- a/vendor/github.com/vishvananda/netlink/conntrack_linux.go +++ b/vendor/github.com/vishvananda/netlink/conntrack_linux.go @@ -6,6 +6,7 @@ import ( "errors" "fmt" "net" + "time" "github.com/vishvananda/netlink/nl" "golang.org/x/sys/unix" @@ -54,10 +55,30 @@ func ConntrackTableFlush(table ConntrackTableType) error { return pkgHandle.ConntrackTableFlush(table) } +// ConntrackCreate creates a new conntrack flow in the desired table +// conntrack -I [table] Create a conntrack or expectation +func ConntrackCreate(table ConntrackTableType, family InetFamily, flow *ConntrackFlow) error { + return pkgHandle.ConntrackCreate(table, family, flow) +} + +// ConntrackUpdate updates an existing conntrack flow in the desired table using the handle +// conntrack -U [table] Update a conntrack +func ConntrackUpdate(table ConntrackTableType, family InetFamily, flow *ConntrackFlow) error { + return pkgHandle.ConntrackUpdate(table, family, flow) +} + // ConntrackDeleteFilter deletes entries on the specified table on the base of the filter // conntrack -D [table] parameters Delete conntrack or expectation +// +// Deprecated: use [ConntrackDeleteFilter] instead. func ConntrackDeleteFilter(table ConntrackTableType, family InetFamily, filter CustomConntrackFilter) (uint, error) { - return pkgHandle.ConntrackDeleteFilter(table, family, filter) + return pkgHandle.ConntrackDeleteFilters(table, family, filter) +} + +// ConntrackDeleteFilters deletes entries on the specified table matching any of the specified filters +// conntrack -D [table] parameters Delete conntrack or expectation +func ConntrackDeleteFilters(table ConntrackTableType, family InetFamily, filters ...CustomConntrackFilter) (uint, error) { + return pkgHandle.ConntrackDeleteFilters(table, family, filters...) } // ConntrackTableList returns the flow list of a table of a specific family using the netlink handle passed @@ -86,9 +107,51 @@ func (h *Handle) ConntrackTableFlush(table ConntrackTableType) error { return err } +// ConntrackCreate creates a new conntrack flow in the desired table using the handle +// conntrack -I [table] Create a conntrack or expectation +func (h *Handle) ConntrackCreate(table ConntrackTableType, family InetFamily, flow *ConntrackFlow) error { + req := h.newConntrackRequest(table, family, nl.IPCTNL_MSG_CT_NEW, unix.NLM_F_ACK|unix.NLM_F_CREATE) + attr, err := flow.toNlData() + if err != nil { + return err + } + + for _, a := range attr { + req.AddData(a) + } + + _, err = req.Execute(unix.NETLINK_NETFILTER, 0) + return err +} + +// ConntrackUpdate updates an existing conntrack flow in the desired table using the handle +// conntrack -U [table] Update a conntrack +func (h *Handle) ConntrackUpdate(table ConntrackTableType, family InetFamily, flow *ConntrackFlow) error { + req := h.newConntrackRequest(table, family, nl.IPCTNL_MSG_CT_NEW, unix.NLM_F_ACK|unix.NLM_F_REPLACE) + attr, err := flow.toNlData() + if err != nil { + return err + } + + for _, a := range attr { + req.AddData(a) + } + + _, err = req.Execute(unix.NETLINK_NETFILTER, 0) + return err +} + // ConntrackDeleteFilter deletes entries on the specified table on the base of the filter using the netlink handle passed // conntrack -D [table] parameters Delete conntrack or expectation +// +// Deprecated: use [Handle.ConntrackDeleteFilters] instead. func (h *Handle) ConntrackDeleteFilter(table ConntrackTableType, family InetFamily, filter CustomConntrackFilter) (uint, error) { + return h.ConntrackDeleteFilters(table, family, filter) +} + +// ConntrackDeleteFilters deletes entries on the specified table matching any of the specified filters using the netlink handle passed +// conntrack -D [table] parameters Delete conntrack or expectation +func (h *Handle) ConntrackDeleteFilters(table ConntrackTableType, family InetFamily, filters ...CustomConntrackFilter) (uint, error) { res, err := h.dumpConntrackTable(table, family) if err != nil { return 0, err @@ -97,12 +160,16 @@ func (h *Handle) ConntrackDeleteFilter(table ConntrackTableType, family InetFami var matched uint for _, dataRaw := range res { flow := parseRawData(dataRaw) - if match := filter.MatchConntrackFlow(flow); match { - req2 := h.newConntrackRequest(table, family, nl.IPCTNL_MSG_CT_DELETE, unix.NLM_F_ACK) - // skip the first 4 byte that are the netfilter header, the newConntrackRequest is adding it already - req2.AddRawData(dataRaw[4:]) - req2.Execute(unix.NETLINK_NETFILTER, 0) - matched++ + for _, filter := range filters { + if match := filter.MatchConntrackFlow(flow); match { + req2 := h.newConntrackRequest(table, family, nl.IPCTNL_MSG_CT_DELETE, unix.NLM_F_ACK) + // skip the first 4 byte that are the netfilter header, the newConntrackRequest is adding it already + req2.AddRawData(dataRaw[4:]) + req2.Execute(unix.NETLINK_NETFILTER, 0) + matched++ + // flow is already deleted, no need to match on other filters and continue to the next flow. + break + } } } @@ -127,10 +194,44 @@ func (h *Handle) dumpConntrackTable(table ConntrackTableType, family InetFamily) return req.Execute(unix.NETLINK_NETFILTER, 0) } +// ProtoInfo wraps an L4-protocol structure - roughly corresponds to the +// __nfct_protoinfo union found in libnetfilter_conntrack/include/internal/object.h. +// Currently, only protocol names, and TCP state is supported. +type ProtoInfo interface { + Protocol() string +} + +// ProtoInfoTCP corresponds to the `tcp` struct of the __nfct_protoinfo union. +// Only TCP state is currently supported. +type ProtoInfoTCP struct { + State uint8 +} +// Protocol returns "tcp". +func (*ProtoInfoTCP) Protocol() string {return "tcp"} +func (p *ProtoInfoTCP) toNlData() ([]*nl.RtAttr, error) { + ctProtoInfo := nl.NewRtAttr(unix.NLA_F_NESTED | nl.CTA_PROTOINFO, []byte{}) + ctProtoInfoTCP := nl.NewRtAttr(unix.NLA_F_NESTED|nl.CTA_PROTOINFO_TCP, []byte{}) + ctProtoInfoTCPState := nl.NewRtAttr(nl.CTA_PROTOINFO_TCP_STATE, nl.Uint8Attr(p.State)) + ctProtoInfoTCP.AddChild(ctProtoInfoTCPState) + ctProtoInfo.AddChild(ctProtoInfoTCP) + + return []*nl.RtAttr{ctProtoInfo}, nil +} + +// ProtoInfoSCTP only supports the protocol name. +type ProtoInfoSCTP struct {} +// Protocol returns "sctp". +func (*ProtoInfoSCTP) Protocol() string {return "sctp"} + +// ProtoInfoDCCP only supports the protocol name. +type ProtoInfoDCCP struct {} +// Protocol returns "dccp". +func (*ProtoInfoDCCP) Protocol() string {return "dccp"} + // The full conntrack flow structure is very complicated and can be found in the file: // http://git.netfilter.org/libnetfilter_conntrack/tree/include/internal/object.h // For the time being, the structure below allows to parse and extract the base information of a flow -type ipTuple struct { +type IPTuple struct { Bytes uint64 DstIP net.IP DstPort uint16 @@ -140,21 +241,150 @@ type ipTuple struct { SrcPort uint16 } +// toNlData generates the inner fields of a nested tuple netlink datastructure +// does not generate the "nested"-flagged outer message. +func (t *IPTuple) toNlData(family uint8) ([]*nl.RtAttr, error) { + + var srcIPsFlag, dstIPsFlag int + if family == nl.FAMILY_V4 { + srcIPsFlag = nl.CTA_IP_V4_SRC + dstIPsFlag = nl.CTA_IP_V4_DST + } else if family == nl.FAMILY_V6 { + srcIPsFlag = nl.CTA_IP_V6_SRC + dstIPsFlag = nl.CTA_IP_V6_DST + } else { + return []*nl.RtAttr{}, fmt.Errorf("couldn't generate netlink message for tuple due to unrecognized FamilyType '%d'", family) + } + + ctTupleIP := nl.NewRtAttr(unix.NLA_F_NESTED|nl.CTA_TUPLE_IP, nil) + ctTupleIPSrc := nl.NewRtAttr(srcIPsFlag, t.SrcIP) + ctTupleIP.AddChild(ctTupleIPSrc) + ctTupleIPDst := nl.NewRtAttr(dstIPsFlag, t.DstIP) + ctTupleIP.AddChild(ctTupleIPDst) + + ctTupleProto := nl.NewRtAttr(unix.NLA_F_NESTED|nl.CTA_TUPLE_PROTO, nil) + ctTupleProtoNum := nl.NewRtAttr(nl.CTA_PROTO_NUM, []byte{t.Protocol}) + ctTupleProto.AddChild(ctTupleProtoNum) + ctTupleProtoSrcPort := nl.NewRtAttr(nl.CTA_PROTO_SRC_PORT, nl.BEUint16Attr(t.SrcPort)) + ctTupleProto.AddChild(ctTupleProtoSrcPort) + ctTupleProtoDstPort := nl.NewRtAttr(nl.CTA_PROTO_DST_PORT, nl.BEUint16Attr(t.DstPort)) + ctTupleProto.AddChild(ctTupleProtoDstPort, ) + + return []*nl.RtAttr{ctTupleIP, ctTupleProto}, nil +} + type ConntrackFlow struct { FamilyType uint8 - Forward ipTuple - Reverse ipTuple + Forward IPTuple + Reverse IPTuple Mark uint32 + Zone uint16 + TimeStart uint64 + TimeStop uint64 + TimeOut uint32 + Labels []byte + ProtoInfo ProtoInfo } func (s *ConntrackFlow) String() string { // conntrack cmd output: - // udp 17 src=127.0.0.1 dst=127.0.0.1 sport=4001 dport=1234 packets=5 bytes=532 [UNREPLIED] src=127.0.0.1 dst=127.0.0.1 sport=1234 dport=4001 packets=10 bytes=1078 mark=0 - return fmt.Sprintf("%s\t%d src=%s dst=%s sport=%d dport=%d packets=%d bytes=%d\tsrc=%s dst=%s sport=%d dport=%d packets=%d bytes=%d mark=%d", + // udp 17 src=127.0.0.1 dst=127.0.0.1 sport=4001 dport=1234 packets=5 bytes=532 [UNREPLIED] src=127.0.0.1 dst=127.0.0.1 sport=1234 dport=4001 packets=10 bytes=1078 mark=0 labels=0x00000000050012ac4202010000000000 zone=100 + // start=2019-07-26 01:26:21.557800506 +0000 UTC stop=1970-01-01 00:00:00 +0000 UTC timeout=30(sec) + start := time.Unix(0, int64(s.TimeStart)) + stop := time.Unix(0, int64(s.TimeStop)) + timeout := int32(s.TimeOut) + res := fmt.Sprintf("%s\t%d src=%s dst=%s sport=%d dport=%d packets=%d bytes=%d\tsrc=%s dst=%s sport=%d dport=%d packets=%d bytes=%d mark=0x%x ", nl.L4ProtoMap[s.Forward.Protocol], s.Forward.Protocol, s.Forward.SrcIP.String(), s.Forward.DstIP.String(), s.Forward.SrcPort, s.Forward.DstPort, s.Forward.Packets, s.Forward.Bytes, s.Reverse.SrcIP.String(), s.Reverse.DstIP.String(), s.Reverse.SrcPort, s.Reverse.DstPort, s.Reverse.Packets, s.Reverse.Bytes, s.Mark) + if len(s.Labels) > 0 { + res += fmt.Sprintf("labels=0x%x ", s.Labels) + } + if s.Zone != 0 { + res += fmt.Sprintf("zone=%d ", s.Zone) + } + res += fmt.Sprintf("start=%v stop=%v timeout=%d(sec)", start, stop, timeout) + return res +} + +// toNlData generates netlink messages representing the flow. +func (s *ConntrackFlow) toNlData() ([]*nl.RtAttr, error) { + var payload []*nl.RtAttr + // The message structure is built as follows: + // + // + // + // + // + // + // + // + // + // + // + // + // + // + // + // + // + // + // + // + // + // + // + // + // + // + // + // + // + // + // + // + // + + // CTA_TUPLE_ORIG + ctTupleOrig := nl.NewRtAttr(unix.NLA_F_NESTED|nl.CTA_TUPLE_ORIG, nil) + forwardFlowAttrs, err := s.Forward.toNlData(s.FamilyType) + if err != nil { + return nil, fmt.Errorf("couldn't generate netlink data for conntrack forward flow: %w", err) + } + for _, a := range forwardFlowAttrs { + ctTupleOrig.AddChild(a) + } + + // CTA_TUPLE_REPLY + ctTupleReply := nl.NewRtAttr(unix.NLA_F_NESTED|nl.CTA_TUPLE_REPLY, nil) + reverseFlowAttrs, err := s.Reverse.toNlData(s.FamilyType) + if err != nil { + return nil, fmt.Errorf("couldn't generate netlink data for conntrack reverse flow: %w", err) + } + for _, a := range reverseFlowAttrs { + ctTupleReply.AddChild(a) + } + + ctMark := nl.NewRtAttr(nl.CTA_MARK, nl.BEUint32Attr(s.Mark)) + ctTimeout := nl.NewRtAttr(nl.CTA_TIMEOUT, nl.BEUint32Attr(s.TimeOut)) + + payload = append(payload, ctTupleOrig, ctTupleReply, ctMark, ctTimeout) + + if s.ProtoInfo != nil { + switch p := s.ProtoInfo.(type) { + case *ProtoInfoTCP: + attrs, err := p.toNlData() + if err != nil { + return nil, fmt.Errorf("couldn't generate netlink data for conntrack flow's TCP protoinfo: %w", err) + } + payload = append(payload, attrs...) + default: + return nil, errors.New("couldn't generate netlink data for conntrack: field 'ProtoInfo' only supports TCP or nil") + } + } + + return payload, nil } // This method parse the ip tuple structure @@ -164,7 +394,7 @@ func (s *ConntrackFlow) String() string { // // // -func parseIpTuple(reader *bytes.Reader, tpl *ipTuple) uint8 { +func parseIpTuple(reader *bytes.Reader, tpl *IPTuple) uint8 { for i := 0; i < 2; i++ { _, t, _, v := parseNfAttrTLV(reader) switch t { @@ -174,25 +404,43 @@ func parseIpTuple(reader *bytes.Reader, tpl *ipTuple) uint8 { tpl.DstIP = v } } - // Skip the next 4 bytes nl.NLA_F_NESTED|nl.CTA_TUPLE_PROTO - reader.Seek(4, seekCurrent) - _, t, _, v := parseNfAttrTLV(reader) + // Get total length of nested protocol-specific info. + _, _, protoInfoTotalLen := parseNfAttrTL(reader) + _, t, l, v := parseNfAttrTLV(reader) + // Track the number of bytes read. + protoInfoBytesRead := uint16(nl.SizeofNfattr) + l if t == nl.CTA_PROTO_NUM { tpl.Protocol = uint8(v[0]) } - // Skip some padding 3 bytes + // We only parse TCP & UDP headers. Skip the others. + if tpl.Protocol != unix.IPPROTO_TCP && tpl.Protocol != unix.IPPROTO_UDP { + // skip the rest + bytesRemaining := protoInfoTotalLen - protoInfoBytesRead + reader.Seek(int64(bytesRemaining), seekCurrent) + return tpl.Protocol + } + // Skip 3 bytes of padding reader.Seek(3, seekCurrent) + protoInfoBytesRead += 3 for i := 0; i < 2; i++ { _, t, _ := parseNfAttrTL(reader) + protoInfoBytesRead += uint16(nl.SizeofNfattr) switch t { case nl.CTA_PROTO_SRC_PORT: parseBERaw16(reader, &tpl.SrcPort) + protoInfoBytesRead += 2 case nl.CTA_PROTO_DST_PORT: parseBERaw16(reader, &tpl.DstPort) + protoInfoBytesRead += 2 } - // Skip some padding 2 byte + // Skip 2 bytes of padding reader.Seek(2, seekCurrent) + protoInfoBytesRead += 2 } + // Skip any remaining/unknown parts of the message + bytesRemaining := protoInfoTotalLen - protoInfoBytesRead + reader.Seek(int64(bytesRemaining), seekCurrent) + return tpl.Protocol } @@ -211,10 +459,18 @@ func parseNfAttrTL(r *bytes.Reader) (isNested bool, attrType, len uint16) { binary.Read(r, nl.NativeEndian(), &attrType) isNested = (attrType & nl.NLA_F_NESTED) == nl.NLA_F_NESTED attrType = attrType & (nl.NLA_F_NESTED - 1) - return isNested, attrType, len } +// skipNfAttrValue seeks `r` past attr of length `len`. +// Maintains buffer alignment. +// Returns length of the seek performed. +func skipNfAttrValue(r *bytes.Reader, len uint16) uint16 { + len = (len + nl.NLA_ALIGNTO - 1) & ^(nl.NLA_ALIGNTO - 1) + r.Seek(int64(len), seekCurrent) + return len +} + func parseBERaw16(r *bytes.Reader, v *uint16) { binary.Read(r, binary.BigEndian, v) } @@ -227,6 +483,10 @@ func parseBERaw64(r *bytes.Reader, v *uint64) { binary.Read(r, binary.BigEndian, v) } +func parseRaw32(r *bytes.Reader, v *uint32) { + binary.Read(r, nl.NativeEndian(), v) +} + func parseByteAndPacketCounters(r *bytes.Reader) (bytes, packets uint64) { for i := 0; i < 2; i++ { switch _, t, _ := parseNfAttrTL(r); t { @@ -241,11 +501,107 @@ func parseByteAndPacketCounters(r *bytes.Reader) (bytes, packets uint64) { return } +// when the flow is alive, only the timestamp_start is returned in structure +func parseTimeStamp(r *bytes.Reader, readSize uint16) (tstart, tstop uint64) { + var numTimeStamps int + oneItem := nl.SizeofNfattr + 8 // 4 bytes attr header + 8 bytes timestamp + if readSize == uint16(oneItem) { + numTimeStamps = 1 + } else if readSize == 2*uint16(oneItem) { + numTimeStamps = 2 + } else { + return + } + for i := 0; i < numTimeStamps; i++ { + switch _, t, _ := parseNfAttrTL(r); t { + case nl.CTA_TIMESTAMP_START: + parseBERaw64(r, &tstart) + case nl.CTA_TIMESTAMP_STOP: + parseBERaw64(r, &tstop) + default: + return + } + } + return + +} + +func parseProtoInfoTCPState(r *bytes.Reader) (s uint8) { + binary.Read(r, binary.BigEndian, &s) + r.Seek(nl.SizeofNfattr - 1, seekCurrent) + return s +} + +// parseProtoInfoTCP reads the entire nested protoinfo structure, but only parses the state attr. +func parseProtoInfoTCP(r *bytes.Reader, attrLen uint16) (*ProtoInfoTCP) { + p := new(ProtoInfoTCP) + bytesRead := 0 + for bytesRead < int(attrLen) { + _, t, l := parseNfAttrTL(r) + bytesRead += nl.SizeofNfattr + + switch t { + case nl.CTA_PROTOINFO_TCP_STATE: + p.State = parseProtoInfoTCPState(r) + bytesRead += nl.SizeofNfattr + default: + bytesRead += int(skipNfAttrValue(r, l)) + } + } + + return p +} + +func parseProtoInfo(r *bytes.Reader, attrLen uint16) (p ProtoInfo) { + bytesRead := 0 + for bytesRead < int(attrLen) { + _, t, l := parseNfAttrTL(r) + bytesRead += nl.SizeofNfattr + + switch t { + case nl.CTA_PROTOINFO_TCP: + p = parseProtoInfoTCP(r, l) + bytesRead += int(l) + // No inner fields of DCCP / SCTP currently supported. + case nl.CTA_PROTOINFO_DCCP: + p = new(ProtoInfoDCCP) + skipped := skipNfAttrValue(r, l) + bytesRead += int(skipped) + case nl.CTA_PROTOINFO_SCTP: + p = new(ProtoInfoSCTP) + skipped := skipNfAttrValue(r, l) + bytesRead += int(skipped) + default: + skipped := skipNfAttrValue(r, l) + bytesRead += int(skipped) + } + } + + return p +} + +func parseTimeOut(r *bytes.Reader) (ttimeout uint32) { + parseBERaw32(r, &ttimeout) + return +} + func parseConnectionMark(r *bytes.Reader) (mark uint32) { parseBERaw32(r, &mark) return } +func parseConnectionLabels(r *bytes.Reader) (label []byte) { + label = make([]byte, 16) // netfilter defines 128 bit labels value + binary.Read(r, nl.NativeEndian(), &label) + return +} + +func parseConnectionZone(r *bytes.Reader) (zone uint16) { + parseBERaw16(r, &zone) + r.Seek(2, seekCurrent) + return +} + func parseRawData(data []byte) *ConntrackFlow { s := &ConntrackFlow{} // First there is the Nfgenmsg header @@ -266,25 +622,41 @@ func parseRawData(data []byte) *ConntrackFlow { if nested, t, l := parseNfAttrTL(reader); nested { switch t { case nl.CTA_TUPLE_ORIG: - if nested, t, _ = parseNfAttrTL(reader); nested && t == nl.CTA_TUPLE_IP { + if nested, t, l = parseNfAttrTL(reader); nested && t == nl.CTA_TUPLE_IP { parseIpTuple(reader, &s.Forward) } case nl.CTA_TUPLE_REPLY: - if nested, t, _ = parseNfAttrTL(reader); nested && t == nl.CTA_TUPLE_IP { + if nested, t, l = parseNfAttrTL(reader); nested && t == nl.CTA_TUPLE_IP { parseIpTuple(reader, &s.Reverse) } else { // Header not recognized skip it - reader.Seek(int64(l), seekCurrent) + skipNfAttrValue(reader, l) } case nl.CTA_COUNTERS_ORIG: s.Forward.Bytes, s.Forward.Packets = parseByteAndPacketCounters(reader) case nl.CTA_COUNTERS_REPLY: s.Reverse.Bytes, s.Reverse.Packets = parseByteAndPacketCounters(reader) + case nl.CTA_TIMESTAMP: + s.TimeStart, s.TimeStop = parseTimeStamp(reader, l) + case nl.CTA_PROTOINFO: + s.ProtoInfo = parseProtoInfo(reader, l) + default: + skipNfAttrValue(reader, l) } } else { switch t { case nl.CTA_MARK: s.Mark = parseConnectionMark(reader) + case nl.CTA_LABELS: + s.Labels = parseConnectionLabels(reader) + case nl.CTA_TIMEOUT: + s.TimeOut = parseTimeOut(reader) + case nl.CTA_ID, nl.CTA_STATUS, nl.CTA_USE: + skipNfAttrValue(reader, l) + case nl.CTA_ZONE: + s.Zone = parseConnectionZone(reader) + default: + skipNfAttrValue(reader, l) } } } @@ -318,18 +690,27 @@ func parseRawData(data []byte) *ConntrackFlow { // --mask-src ip Source mask address // --mask-dst ip Destination mask address +// Layer 4 Protocol common parameters and options: +// TCP, UDP, SCTP, UDPLite and DCCP +// --sport, --orig-port-src port Source port in original direction +// --dport, --orig-port-dst port Destination port in original direction + // Filter types type ConntrackFilterType uint8 const ( - ConntrackOrigSrcIP = iota // -orig-src ip Source address from original direction - ConntrackOrigDstIP // -orig-dst ip Destination address from original direction - ConntrackReplySrcIP // --reply-src ip Reply Source IP - ConntrackReplyDstIP // --reply-dst ip Reply Destination IP - ConntrackReplyAnyIP // Match source or destination reply IP - ConntrackNatSrcIP = ConntrackReplySrcIP // deprecated use instead ConntrackReplySrcIP - ConntrackNatDstIP = ConntrackReplyDstIP // deprecated use instead ConntrackReplyDstIP - ConntrackNatAnyIP = ConntrackReplyAnyIP // deprecated use instaed ConntrackReplyAnyIP + ConntrackOrigSrcIP = iota // -orig-src ip Source address from original direction + ConntrackOrigDstIP // -orig-dst ip Destination address from original direction + ConntrackReplySrcIP // --reply-src ip Reply Source IP + ConntrackReplyDstIP // --reply-dst ip Reply Destination IP + ConntrackReplyAnyIP // Match source or destination reply IP + ConntrackOrigSrcPort // --orig-port-src port Source port in original direction + ConntrackOrigDstPort // --orig-port-dst port Destination port in original direction + ConntrackMatchLabels // --label label1,label2 Labels used in entry + ConntrackUnmatchLabels // --label label1,label2 Labels not used in entry + ConntrackNatSrcIP = ConntrackReplySrcIP // deprecated use instead ConntrackReplySrcIP + ConntrackNatDstIP = ConntrackReplyDstIP // deprecated use instead ConntrackReplyDstIP + ConntrackNatAnyIP = ConntrackReplyAnyIP // deprecated use instead ConntrackReplyAnyIP ) type CustomConntrackFilter interface { @@ -339,53 +720,180 @@ type CustomConntrackFilter interface { } type ConntrackFilter struct { - ipFilter map[ConntrackFilterType]net.IP + ipNetFilter map[ConntrackFilterType]*net.IPNet + portFilter map[ConntrackFilterType]uint16 + protoFilter uint8 + labelFilter map[ConntrackFilterType][][]byte + zoneFilter *uint16 +} + +// AddIPNet adds a IP subnet to the conntrack filter +func (f *ConntrackFilter) AddIPNet(tp ConntrackFilterType, ipNet *net.IPNet) error { + if ipNet == nil { + return fmt.Errorf("Filter attribute empty") + } + if f.ipNetFilter == nil { + f.ipNetFilter = make(map[ConntrackFilterType]*net.IPNet) + } + if _, ok := f.ipNetFilter[tp]; ok { + return errors.New("Filter attribute already present") + } + f.ipNetFilter[tp] = ipNet + return nil } // AddIP adds an IP to the conntrack filter func (f *ConntrackFilter) AddIP(tp ConntrackFilterType, ip net.IP) error { - if f.ipFilter == nil { - f.ipFilter = make(map[ConntrackFilterType]net.IP) + if ip == nil { + return fmt.Errorf("Filter attribute empty") + } + return f.AddIPNet(tp, NewIPNet(ip)) +} + +// AddPort adds a Port to the conntrack filter if the Layer 4 protocol allows it +func (f *ConntrackFilter) AddPort(tp ConntrackFilterType, port uint16) error { + switch f.protoFilter { + // TCP, UDP, DCCP, SCTP, UDPLite + case 6, 17, 33, 132, 136: + default: + return fmt.Errorf("Filter attribute not available without a valid Layer 4 protocol: %d", f.protoFilter) } - if _, ok := f.ipFilter[tp]; ok { + + if f.portFilter == nil { + f.portFilter = make(map[ConntrackFilterType]uint16) + } + if _, ok := f.portFilter[tp]; ok { return errors.New("Filter attribute already present") } - f.ipFilter[tp] = ip + f.portFilter[tp] = port + return nil +} + +// AddProtocol adds the Layer 4 protocol to the conntrack filter +func (f *ConntrackFilter) AddProtocol(proto uint8) error { + if f.protoFilter != 0 { + return errors.New("Filter attribute already present") + } + f.protoFilter = proto + return nil +} + +// AddLabels adds the provided list (zero or more) of labels to the conntrack filter +// ConntrackFilterType here can be either: +// 1. ConntrackMatchLabels: This matches every flow that has a label value (len(flow.Labels) > 0) +// against the list of provided labels. If `flow.Labels` contains ALL the provided labels +// it is considered a match. This can be used when you want to match flows that contain +// one or more labels. +// 2. ConntrackUnmatchLabels: This matches every flow that has a label value (len(flow.Labels) > 0) +// against the list of provided labels. If `flow.Labels` does NOT contain ALL the provided labels +// it is considered a match. This can be used when you want to match flows that don't contain +// one or more labels. +func (f *ConntrackFilter) AddLabels(tp ConntrackFilterType, labels [][]byte) error { + if len(labels) == 0 { + return errors.New("Invalid length for provided labels") + } + if f.labelFilter == nil { + f.labelFilter = make(map[ConntrackFilterType][][]byte) + } + if _, ok := f.labelFilter[tp]; ok { + return errors.New("Filter attribute already present") + } + f.labelFilter[tp] = labels + return nil +} + +// AddZone adds a zone to the conntrack filter +func (f *ConntrackFilter) AddZone(zone uint16) error { + if f.zoneFilter != nil { + return errors.New("Filter attribute already present") + } + f.zoneFilter = &zone return nil } // MatchConntrackFlow applies the filter to the flow and returns true if the flow matches the filter // false otherwise func (f *ConntrackFilter) MatchConntrackFlow(flow *ConntrackFlow) bool { - if len(f.ipFilter) == 0 { + if len(f.ipNetFilter) == 0 && len(f.portFilter) == 0 && f.protoFilter == 0 && len(f.labelFilter) == 0 && f.zoneFilter == nil { // empty filter always not match return false } - match := true - // -orig-src ip Source address from original direction - if elem, found := f.ipFilter[ConntrackOrigSrcIP]; found { - match = match && elem.Equal(flow.Forward.SrcIP) + // -p, --protonum proto Layer 4 Protocol, eg. 'tcp' + if f.protoFilter != 0 && flow.Forward.Protocol != f.protoFilter { + // different Layer 4 protocol always not match + return false } - // -orig-dst ip Destination address from original direction - if elem, found := f.ipFilter[ConntrackOrigDstIP]; match && found { - match = match && elem.Equal(flow.Forward.DstIP) + // Conntrack zone filter + if f.zoneFilter != nil && *f.zoneFilter != flow.Zone { + return false } - // -src-nat ip Source NAT ip - if elem, found := f.ipFilter[ConntrackReplySrcIP]; match && found { - match = match && elem.Equal(flow.Reverse.SrcIP) + match := true + + // IP conntrack filter + if len(f.ipNetFilter) > 0 { + // -orig-src ip Source address from original direction + if elem, found := f.ipNetFilter[ConntrackOrigSrcIP]; found { + match = match && elem.Contains(flow.Forward.SrcIP) + } + + // -orig-dst ip Destination address from original direction + if elem, found := f.ipNetFilter[ConntrackOrigDstIP]; match && found { + match = match && elem.Contains(flow.Forward.DstIP) + } + + // -src-nat ip Source NAT ip + if elem, found := f.ipNetFilter[ConntrackReplySrcIP]; match && found { + match = match && elem.Contains(flow.Reverse.SrcIP) + } + + // -dst-nat ip Destination NAT ip + if elem, found := f.ipNetFilter[ConntrackReplyDstIP]; match && found { + match = match && elem.Contains(flow.Reverse.DstIP) + } + + // Match source or destination reply IP + if elem, found := f.ipNetFilter[ConntrackReplyAnyIP]; match && found { + match = match && (elem.Contains(flow.Reverse.SrcIP) || elem.Contains(flow.Reverse.DstIP)) + } } - // -dst-nat ip Destination NAT ip - if elem, found := f.ipFilter[ConntrackReplyDstIP]; match && found { - match = match && elem.Equal(flow.Reverse.DstIP) + // Layer 4 Port filter + if len(f.portFilter) > 0 { + // -orig-port-src port Source port from original direction + if elem, found := f.portFilter[ConntrackOrigSrcPort]; match && found { + match = match && elem == flow.Forward.SrcPort + } + + // -orig-port-dst port Destination port from original direction + if elem, found := f.portFilter[ConntrackOrigDstPort]; match && found { + match = match && elem == flow.Forward.DstPort + } } - // Match source or destination reply IP - if elem, found := f.ipFilter[ConntrackReplyAnyIP]; match && found { - match = match && (elem.Equal(flow.Reverse.SrcIP) || elem.Equal(flow.Reverse.DstIP)) + // Label filter + if len(f.labelFilter) > 0 { + if len(flow.Labels) > 0 { + // --label label1,label2 in conn entry; + // every label passed should be contained in flow.Labels for a match to be true + if elem, found := f.labelFilter[ConntrackMatchLabels]; match && found { + for _, label := range elem { + match = match && (bytes.Contains(flow.Labels, label)) + } + } + // --label label1,label2 in conn entry; + // every label passed should be not contained in flow.Labels for a match to be true + if elem, found := f.labelFilter[ConntrackUnmatchLabels]; match && found { + for _, label := range elem { + match = match && !(bytes.Contains(flow.Labels, label)) + } + } + } else { + // flow doesn't contain labels, so it doesn't contain or notContain any provided matches + match = false + } } return match diff --git a/vendor/github.com/vishvananda/netlink/conntrack_unspecified.go b/vendor/github.com/vishvananda/netlink/conntrack_unspecified.go index af7af799e..0bfdf422d 100644 --- a/vendor/github.com/vishvananda/netlink/conntrack_unspecified.go +++ b/vendor/github.com/vishvananda/netlink/conntrack_unspecified.go @@ -11,6 +11,9 @@ type InetFamily uint8 // ConntrackFlow placeholder type ConntrackFlow struct{} +// CustomConntrackFilter placeholder +type CustomConntrackFilter struct{} + // ConntrackFilter placeholder type ConntrackFilter struct{} @@ -29,10 +32,18 @@ func ConntrackTableFlush(table ConntrackTableType) error { // ConntrackDeleteFilter deletes entries on the specified table on the base of the filter // conntrack -D [table] parameters Delete conntrack or expectation +// +// Deprecated: use [ConntrackDeleteFilter] instead. func ConntrackDeleteFilter(table ConntrackTableType, family InetFamily, filter *ConntrackFilter) (uint, error) { return 0, ErrNotImplemented } +// ConntrackDeleteFilters deletes entries on the specified table matching any of the specified filters +// conntrack -D [table] parameters Delete conntrack or expectation +func ConntrackDeleteFilters(table ConntrackTableType, family InetFamily, filters ...CustomConntrackFilter) (uint, error) { + return 0, ErrNotImplemented +} + // ConntrackTableList returns the flow list of a table of a specific family using the netlink handle passed // conntrack -L [table] [options] List conntrack or expectation table func (h *Handle) ConntrackTableList(table ConntrackTableType, family InetFamily) ([]*ConntrackFlow, error) { @@ -48,6 +59,14 @@ func (h *Handle) ConntrackTableFlush(table ConntrackTableType) error { // ConntrackDeleteFilter deletes entries on the specified table on the base of the filter using the netlink handle passed // conntrack -D [table] parameters Delete conntrack or expectation +// +// Deprecated: use [Handle.ConntrackDeleteFilters] instead. func (h *Handle) ConntrackDeleteFilter(table ConntrackTableType, family InetFamily, filter *ConntrackFilter) (uint, error) { return 0, ErrNotImplemented } + +// ConntrackDeleteFilters deletes entries on the specified table matching any of the specified filters using the netlink handle passed +// conntrack -D [table] parameters Delete conntrack or expectation +func (h *Handle) ConntrackDeleteFilters(table ConntrackTableType, family InetFamily, filters ...CustomConntrackFilter) (uint, error) { + return 0, ErrNotImplemented +} diff --git a/vendor/github.com/vishvananda/netlink/devlink_linux.go b/vendor/github.com/vishvananda/netlink/devlink_linux.go index 29b3f8ec1..d98801dbb 100644 --- a/vendor/github.com/vishvananda/netlink/devlink_linux.go +++ b/vendor/github.com/vishvananda/netlink/devlink_linux.go @@ -1,9 +1,11 @@ package netlink import ( + "fmt" + "net" + "strings" "syscall" - "fmt" "github.com/vishvananda/netlink/nl" "golang.org/x/sys/unix" ) @@ -27,6 +29,325 @@ type DevlinkDevice struct { Attrs DevlinkDevAttrs } +// DevlinkPortFn represents port function and its attributes +type DevlinkPortFn struct { + HwAddr net.HardwareAddr + State uint8 + OpState uint8 +} + +// DevlinkPortFnSetAttrs represents attributes to set +type DevlinkPortFnSetAttrs struct { + FnAttrs DevlinkPortFn + HwAddrValid bool + StateValid bool +} + +// DevlinkPort represents port and its attributes +type DevlinkPort struct { + BusName string + DeviceName string + PortIndex uint32 + PortType uint16 + NetdeviceName string + NetdevIfIndex uint32 + RdmaDeviceName string + PortFlavour uint16 + Fn *DevlinkPortFn +} + +type DevLinkPortAddAttrs struct { + Controller uint32 + SfNumber uint32 + PortIndex uint32 + PfNumber uint16 + SfNumberValid bool + PortIndexValid bool + ControllerValid bool +} + +// DevlinkDeviceInfo represents devlink info +type DevlinkDeviceInfo struct { + Driver string + SerialNumber string + BoardID string + FwApp string + FwAppBoundleID string + FwAppName string + FwBoundleID string + FwMgmt string + FwMgmtAPI string + FwMgmtBuild string + FwNetlist string + FwNetlistBuild string + FwPsidAPI string + FwUndi string +} + +// DevlinkResource represents a device resource +type DevlinkResource struct { + Name string + ID uint64 + Size uint64 + SizeNew uint64 + SizeMin uint64 + SizeMax uint64 + SizeGranularity uint64 + PendingChange bool + Unit uint8 + SizeValid bool + OCCValid bool + OCCSize uint64 + Parent *DevlinkResource + Children []DevlinkResource +} + +// parseAttributes parses provided Netlink Attributes and populates DevlinkResource, returns error if occured +func (dlr *DevlinkResource) parseAttributes(attrs map[uint16]syscall.NetlinkRouteAttr) error { + var attr syscall.NetlinkRouteAttr + var ok bool + + // mandatory attributes + attr, ok = attrs[nl.DEVLINK_ATTR_RESOURCE_ID] + if !ok { + return fmt.Errorf("missing resource id") + } + dlr.ID = native.Uint64(attr.Value) + + attr, ok = attrs[nl.DEVLINK_ATTR_RESOURCE_NAME] + if !ok { + return fmt.Errorf("missing resource name") + } + dlr.Name = nl.BytesToString(attr.Value) + + attr, ok = attrs[nl.DEVLINK_ATTR_RESOURCE_SIZE] + if !ok { + return fmt.Errorf("missing resource size") + } + dlr.Size = native.Uint64(attr.Value) + + attr, ok = attrs[nl.DEVLINK_ATTR_RESOURCE_SIZE_GRAN] + if !ok { + return fmt.Errorf("missing resource size granularity") + } + dlr.SizeGranularity = native.Uint64(attr.Value) + + attr, ok = attrs[nl.DEVLINK_ATTR_RESOURCE_UNIT] + if !ok { + return fmt.Errorf("missing resource unit") + } + dlr.Unit = uint8(attr.Value[0]) + + attr, ok = attrs[nl.DEVLINK_ATTR_RESOURCE_SIZE_MIN] + if !ok { + return fmt.Errorf("missing resource size min") + } + dlr.SizeMin = native.Uint64(attr.Value) + + attr, ok = attrs[nl.DEVLINK_ATTR_RESOURCE_SIZE_MAX] + if !ok { + return fmt.Errorf("missing resource size max") + } + dlr.SizeMax = native.Uint64(attr.Value) + + // optional attributes + attr, ok = attrs[nl.DEVLINK_ATTR_RESOURCE_OCC] + if ok { + dlr.OCCSize = native.Uint64(attr.Value) + dlr.OCCValid = true + } + + attr, ok = attrs[nl.DEVLINK_ATTR_RESOURCE_SIZE_VALID] + if ok { + dlr.SizeValid = uint8(attr.Value[0]) != 0 + } + + dlr.SizeNew = dlr.Size + attr, ok = attrs[nl.DEVLINK_ATTR_RESOURCE_SIZE_NEW] + if ok { + dlr.SizeNew = native.Uint64(attr.Value) + } + + dlr.PendingChange = dlr.Size != dlr.SizeNew + + attr, ok = attrs[nl.DEVLINK_ATTR_RESOURCE_LIST] + if ok { + // handle nested resoruces recursively + subResources, err := nl.ParseRouteAttr(attr.Value) + if err != nil { + return err + } + + for _, subresource := range subResources { + resource := DevlinkResource{Parent: dlr} + attrs, err := nl.ParseRouteAttrAsMap(subresource.Value) + if err != nil { + return err + } + err = resource.parseAttributes(attrs) + if err != nil { + return fmt.Errorf("failed to parse child resource, parent:%s. %w", dlr.Name, err) + } + dlr.Children = append(dlr.Children, resource) + } + } + return nil +} + +// DevlinkResources represents all devlink resources of a devlink device +type DevlinkResources struct { + Bus string + Device string + Resources []DevlinkResource +} + +// parseAttributes parses provided Netlink Attributes and populates DevlinkResources, returns error if occured +func (dlrs *DevlinkResources) parseAttributes(attrs map[uint16]syscall.NetlinkRouteAttr) error { + var attr syscall.NetlinkRouteAttr + var ok bool + + // Bus + attr, ok = attrs[nl.DEVLINK_ATTR_BUS_NAME] + if !ok { + return fmt.Errorf("missing bus name") + } + dlrs.Bus = nl.BytesToString(attr.Value) + + // Device + attr, ok = attrs[nl.DEVLINK_ATTR_DEV_NAME] + if !ok { + return fmt.Errorf("missing device name") + } + dlrs.Device = nl.BytesToString(attr.Value) + + // Resource List + attr, ok = attrs[nl.DEVLINK_ATTR_RESOURCE_LIST] + if !ok { + return fmt.Errorf("missing resource list") + } + + resourceAttrs, err := nl.ParseRouteAttr(attr.Value) + if err != nil { + return err + } + + for _, resourceAttr := range resourceAttrs { + resource := DevlinkResource{} + attrs, err := nl.ParseRouteAttrAsMap(resourceAttr.Value) + if err != nil { + return err + } + err = resource.parseAttributes(attrs) + if err != nil { + return fmt.Errorf("failed to parse root resoruces, %w", err) + } + dlrs.Resources = append(dlrs.Resources, resource) + } + + return nil +} + +// DevlinkParam represents parameter of the device +type DevlinkParam struct { + Name string + IsGeneric bool + Type uint8 // possible values are in nl.DEVLINK_PARAM_TYPE_* constants + Values []DevlinkParamValue +} + +// DevlinkParamValue contains values of the parameter +// Data field contains specific type which can be casted by unsing info from the DevlinkParam.Type field +type DevlinkParamValue struct { + rawData []byte + Data interface{} + CMODE uint8 // possible values are in nl.DEVLINK_PARAM_CMODE_* constants +} + +// parseAttributes parses provided Netlink Attributes and populates DevlinkParam, returns error if occured +func (dlp *DevlinkParam) parseAttributes(attrs []syscall.NetlinkRouteAttr) error { + var valuesList [][]syscall.NetlinkRouteAttr + for _, attr := range attrs { + switch attr.Attr.Type { + case nl.DEVLINK_ATTR_PARAM: + nattrs, err := nl.ParseRouteAttr(attr.Value) + if err != nil { + return err + } + for _, nattr := range nattrs { + switch nattr.Attr.Type { + case nl.DEVLINK_ATTR_PARAM_NAME: + dlp.Name = nl.BytesToString(nattr.Value) + case nl.DEVLINK_ATTR_PARAM_GENERIC: + dlp.IsGeneric = true + case nl.DEVLINK_ATTR_PARAM_TYPE: + if len(nattr.Value) == 1 { + dlp.Type = nattr.Value[0] + } + case nl.DEVLINK_ATTR_PARAM_VALUES_LIST: + nnattrs, err := nl.ParseRouteAttr(nattr.Value) + if err != nil { + return err + } + valuesList = append(valuesList, nnattrs) + } + } + } + } + for _, valAttr := range valuesList { + v := DevlinkParamValue{} + if err := v.parseAttributes(valAttr, dlp.Type); err != nil { + return err + } + dlp.Values = append(dlp.Values, v) + } + return nil +} + +func (dlpv *DevlinkParamValue) parseAttributes(attrs []syscall.NetlinkRouteAttr, paramType uint8) error { + for _, attr := range attrs { + nattrs, err := nl.ParseRouteAttr(attr.Value) + if err != nil { + return err + } + var rawData []byte + for _, nattr := range nattrs { + switch nattr.Attr.Type { + case nl.DEVLINK_ATTR_PARAM_VALUE_DATA: + rawData = nattr.Value + case nl.DEVLINK_ATTR_PARAM_VALUE_CMODE: + if len(nattr.Value) == 1 { + dlpv.CMODE = nattr.Value[0] + } + } + } + switch paramType { + case nl.DEVLINK_PARAM_TYPE_U8: + dlpv.Data = uint8(0) + if rawData != nil && len(rawData) == 1 { + dlpv.Data = uint8(rawData[0]) + } + case nl.DEVLINK_PARAM_TYPE_U16: + dlpv.Data = uint16(0) + if rawData != nil { + dlpv.Data = native.Uint16(rawData) + } + case nl.DEVLINK_PARAM_TYPE_U32: + dlpv.Data = uint32(0) + if rawData != nil { + dlpv.Data = native.Uint32(rawData) + } + case nl.DEVLINK_PARAM_TYPE_STRING: + dlpv.Data = "" + if rawData != nil { + dlpv.Data = nl.BytesToString(rawData) + } + case nl.DEVLINK_PARAM_TYPE_BOOL: + dlpv.Data = rawData != nil + } + } + return nil +} + func parseDevLinkDeviceList(msgs [][]byte) ([]*DevlinkDevice, error) { devices := make([]*DevlinkDevice, 0, len(msgs)) for _, m := range msgs { @@ -95,9 +416,9 @@ func (d *DevlinkDevice) parseAttributes(attrs []syscall.NetlinkRouteAttr) error for _, a := range attrs { switch a.Attr.Type { case nl.DEVLINK_ATTR_BUS_NAME: - d.BusName = string(a.Value) + d.BusName = string(a.Value[:len(a.Value)-1]) case nl.DEVLINK_ATTR_DEV_NAME: - d.DeviceName = string(a.Value) + d.DeviceName = string(a.Value[:len(a.Value)-1]) case nl.DEVLINK_ATTR_ESWITCH_MODE: d.Attrs.Eswitch.Mode = parseEswitchMode(native.Uint16(a.Value)) case nl.DEVLINK_ATTR_ESWITCH_INLINE_MODE: @@ -126,12 +447,12 @@ func (h *Handle) getEswitchAttrs(family *GenlFamily, dev *DevlinkDevice) { req := h.newNetlinkRequest(int(family.ID), unix.NLM_F_REQUEST|unix.NLM_F_ACK) req.AddData(msg) - b := make([]byte, len(dev.BusName)) + b := make([]byte, len(dev.BusName)+1) copy(b, dev.BusName) data := nl.NewRtAttr(nl.DEVLINK_ATTR_BUS_NAME, b) req.AddData(data) - b = make([]byte, len(dev.DeviceName)) + b = make([]byte, len(dev.DeviceName)+1) copy(b, dev.DeviceName) data = nl.NewRtAttr(nl.DEVLINK_ATTR_DEV_NAME, b) req.AddData(data) @@ -270,3 +591,569 @@ func (h *Handle) DevLinkSetEswitchMode(Dev *DevlinkDevice, NewMode string) error func DevLinkSetEswitchMode(Dev *DevlinkDevice, NewMode string) error { return pkgHandle.DevLinkSetEswitchMode(Dev, NewMode) } + +func (port *DevlinkPort) parseAttributes(attrs []syscall.NetlinkRouteAttr) error { + for _, a := range attrs { + switch a.Attr.Type { + case nl.DEVLINK_ATTR_BUS_NAME: + port.BusName = string(a.Value[:len(a.Value)-1]) + case nl.DEVLINK_ATTR_DEV_NAME: + port.DeviceName = string(a.Value[:len(a.Value)-1]) + case nl.DEVLINK_ATTR_PORT_INDEX: + port.PortIndex = native.Uint32(a.Value) + case nl.DEVLINK_ATTR_PORT_TYPE: + port.PortType = native.Uint16(a.Value) + case nl.DEVLINK_ATTR_PORT_NETDEV_NAME: + port.NetdeviceName = string(a.Value[:len(a.Value)-1]) + case nl.DEVLINK_ATTR_PORT_NETDEV_IFINDEX: + port.NetdevIfIndex = native.Uint32(a.Value) + case nl.DEVLINK_ATTR_PORT_IBDEV_NAME: + port.RdmaDeviceName = string(a.Value[:len(a.Value)-1]) + case nl.DEVLINK_ATTR_PORT_FLAVOUR: + port.PortFlavour = native.Uint16(a.Value) + case nl.DEVLINK_ATTR_PORT_FUNCTION: + port.Fn = &DevlinkPortFn{} + for nested := range nl.ParseAttributes(a.Value) { + switch nested.Type { + case nl.DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR: + port.Fn.HwAddr = nested.Value[:] + case nl.DEVLINK_PORT_FN_ATTR_STATE: + port.Fn.State = uint8(nested.Value[0]) + case nl.DEVLINK_PORT_FN_ATTR_OPSTATE: + port.Fn.OpState = uint8(nested.Value[0]) + } + } + } + } + return nil +} + +func parseDevLinkAllPortList(msgs [][]byte) ([]*DevlinkPort, error) { + ports := make([]*DevlinkPort, 0, len(msgs)) + for _, m := range msgs { + attrs, err := nl.ParseRouteAttr(m[nl.SizeofGenlmsg:]) + if err != nil { + return nil, err + } + port := &DevlinkPort{} + if err = port.parseAttributes(attrs); err != nil { + return nil, err + } + ports = append(ports, port) + } + return ports, nil +} + +// DevLinkGetPortList provides a pointer to devlink ports and nil error, +// otherwise returns an error code. +func (h *Handle) DevLinkGetAllPortList() ([]*DevlinkPort, error) { + f, err := h.GenlFamilyGet(nl.GENL_DEVLINK_NAME) + if err != nil { + return nil, err + } + msg := &nl.Genlmsg{ + Command: nl.DEVLINK_CMD_PORT_GET, + Version: nl.GENL_DEVLINK_VERSION, + } + req := h.newNetlinkRequest(int(f.ID), + unix.NLM_F_REQUEST|unix.NLM_F_ACK|unix.NLM_F_DUMP) + req.AddData(msg) + msgs, err := req.Execute(unix.NETLINK_GENERIC, 0) + if err != nil { + return nil, err + } + ports, err := parseDevLinkAllPortList(msgs) + if err != nil { + return nil, err + } + return ports, nil +} + +// DevLinkGetPortList provides a pointer to devlink ports and nil error, +// otherwise returns an error code. +func DevLinkGetAllPortList() ([]*DevlinkPort, error) { + return pkgHandle.DevLinkGetAllPortList() +} + +func parseDevlinkPortMsg(msgs [][]byte) (*DevlinkPort, error) { + m := msgs[0] + attrs, err := nl.ParseRouteAttr(m[nl.SizeofGenlmsg:]) + if err != nil { + return nil, err + } + port := &DevlinkPort{} + if err = port.parseAttributes(attrs); err != nil { + return nil, err + } + return port, nil +} + +// DevLinkGetPortByIndexprovides a pointer to devlink device and nil error, +// otherwise returns an error code. +func (h *Handle) DevLinkGetPortByIndex(Bus string, Device string, PortIndex uint32) (*DevlinkPort, error) { + + _, req, err := h.createCmdReq(nl.DEVLINK_CMD_PORT_GET, Bus, Device) + if err != nil { + return nil, err + } + + req.AddData(nl.NewRtAttr(nl.DEVLINK_ATTR_PORT_INDEX, nl.Uint32Attr(PortIndex))) + + respmsg, err := req.Execute(unix.NETLINK_GENERIC, 0) + if err != nil { + return nil, err + } + port, err := parseDevlinkPortMsg(respmsg) + return port, err +} + +// DevlinkGetDeviceResources returns devlink device resources +func DevlinkGetDeviceResources(bus string, device string) (*DevlinkResources, error) { + return pkgHandle.DevlinkGetDeviceResources(bus, device) +} + +// DevlinkGetDeviceResources returns devlink device resources +func (h *Handle) DevlinkGetDeviceResources(bus string, device string) (*DevlinkResources, error) { + _, req, err := h.createCmdReq(nl.DEVLINK_CMD_RESOURCE_DUMP, bus, device) + if err != nil { + return nil, err + } + + respmsg, err := req.Execute(unix.NETLINK_GENERIC, 0) + if err != nil { + return nil, err + } + + var resources DevlinkResources + for _, m := range respmsg { + attrs, err := nl.ParseRouteAttrAsMap(m[nl.SizeofGenlmsg:]) + if err != nil { + return nil, err + } + resources.parseAttributes(attrs) + } + + return &resources, nil +} + +// DevlinkGetDeviceParams returns parameters for devlink device +// Equivalent to: `devlink dev param show /` +func (h *Handle) DevlinkGetDeviceParams(bus string, device string) ([]*DevlinkParam, error) { + _, req, err := h.createCmdReq(nl.DEVLINK_CMD_PARAM_GET, bus, device) + if err != nil { + return nil, err + } + req.Flags |= unix.NLM_F_DUMP + respmsg, err := req.Execute(unix.NETLINK_GENERIC, 0) + if err != nil { + return nil, err + } + var params []*DevlinkParam + for _, m := range respmsg { + attrs, err := nl.ParseRouteAttr(m[nl.SizeofGenlmsg:]) + if err != nil { + return nil, err + } + p := &DevlinkParam{} + if err := p.parseAttributes(attrs); err != nil { + return nil, err + } + params = append(params, p) + } + + return params, nil +} + +// DevlinkGetDeviceParams returns parameters for devlink device +// Equivalent to: `devlink dev param show /` +func DevlinkGetDeviceParams(bus string, device string) ([]*DevlinkParam, error) { + return pkgHandle.DevlinkGetDeviceParams(bus, device) +} + +// DevlinkGetDeviceParamByName returns specific parameter for devlink device +// Equivalent to: `devlink dev param show / name ` +func (h *Handle) DevlinkGetDeviceParamByName(bus string, device string, param string) (*DevlinkParam, error) { + _, req, err := h.createCmdReq(nl.DEVLINK_CMD_PARAM_GET, bus, device) + if err != nil { + return nil, err + } + req.AddData(nl.NewRtAttr(nl.DEVLINK_ATTR_PARAM_NAME, nl.ZeroTerminated(param))) + respmsg, err := req.Execute(unix.NETLINK_GENERIC, 0) + if err != nil { + return nil, err + } + if len(respmsg) == 0 { + return nil, fmt.Errorf("unexpected response") + } + attrs, err := nl.ParseRouteAttr(respmsg[0][nl.SizeofGenlmsg:]) + if err != nil { + return nil, err + } + p := &DevlinkParam{} + if err := p.parseAttributes(attrs); err != nil { + return nil, err + } + return p, nil +} + +// DevlinkGetDeviceParamByName returns specific parameter for devlink device +// Equivalent to: `devlink dev param show / name ` +func DevlinkGetDeviceParamByName(bus string, device string, param string) (*DevlinkParam, error) { + return pkgHandle.DevlinkGetDeviceParamByName(bus, device, param) +} + +// DevlinkSetDeviceParam set specific parameter for devlink device +// Equivalent to: `devlink dev param set / name cmode value ` +// cmode argument should contain valid cmode value as uint8, modes are define in nl.DEVLINK_PARAM_CMODE_* constants +// value argument should have one of the following types: uint8, uint16, uint32, string, bool +func (h *Handle) DevlinkSetDeviceParam(bus string, device string, param string, cmode uint8, value interface{}) error { + // retrive the param type + p, err := h.DevlinkGetDeviceParamByName(bus, device, param) + if err != nil { + return fmt.Errorf("failed to get device param: %v", err) + } + paramType := p.Type + + _, req, err := h.createCmdReq(nl.DEVLINK_CMD_PARAM_SET, bus, device) + if err != nil { + return err + } + req.AddData(nl.NewRtAttr(nl.DEVLINK_ATTR_PARAM_TYPE, nl.Uint8Attr(paramType))) + req.AddData(nl.NewRtAttr(nl.DEVLINK_ATTR_PARAM_NAME, nl.ZeroTerminated(param))) + req.AddData(nl.NewRtAttr(nl.DEVLINK_ATTR_PARAM_VALUE_CMODE, nl.Uint8Attr(cmode))) + + var valueAsBytes []byte + switch paramType { + case nl.DEVLINK_PARAM_TYPE_U8: + v, ok := value.(uint8) + if !ok { + return fmt.Errorf("unepected value type required: uint8, actual: %T", value) + } + valueAsBytes = nl.Uint8Attr(v) + case nl.DEVLINK_PARAM_TYPE_U16: + v, ok := value.(uint16) + if !ok { + return fmt.Errorf("unepected value type required: uint16, actual: %T", value) + } + valueAsBytes = nl.Uint16Attr(v) + case nl.DEVLINK_PARAM_TYPE_U32: + v, ok := value.(uint32) + if !ok { + return fmt.Errorf("unepected value type required: uint32, actual: %T", value) + } + valueAsBytes = nl.Uint32Attr(v) + case nl.DEVLINK_PARAM_TYPE_STRING: + v, ok := value.(string) + if !ok { + return fmt.Errorf("unepected value type required: string, actual: %T", value) + } + valueAsBytes = nl.ZeroTerminated(v) + case nl.DEVLINK_PARAM_TYPE_BOOL: + v, ok := value.(bool) + if !ok { + return fmt.Errorf("unepected value type required: bool, actual: %T", value) + } + if v { + valueAsBytes = []byte{} + } + default: + return fmt.Errorf("unsupported parameter type: %d", paramType) + } + if valueAsBytes != nil { + req.AddData(nl.NewRtAttr(nl.DEVLINK_ATTR_PARAM_VALUE_DATA, valueAsBytes)) + } + _, err = req.Execute(unix.NETLINK_GENERIC, 0) + return err +} + +// DevlinkSetDeviceParam set specific parameter for devlink device +// Equivalent to: `devlink dev param set / name cmode value ` +// cmode argument should contain valid cmode value as uint8, modes are define in nl.DEVLINK_PARAM_CMODE_* constants +// value argument should have one of the following types: uint8, uint16, uint32, string, bool +func DevlinkSetDeviceParam(bus string, device string, param string, cmode uint8, value interface{}) error { + return pkgHandle.DevlinkSetDeviceParam(bus, device, param, cmode, value) +} + +// DevLinkGetPortByIndex provides a pointer to devlink portand nil error, +// otherwise returns an error code. +func DevLinkGetPortByIndex(Bus string, Device string, PortIndex uint32) (*DevlinkPort, error) { + return pkgHandle.DevLinkGetPortByIndex(Bus, Device, PortIndex) +} + +// DevLinkPortAdd adds a devlink port and returns a port on success +// otherwise returns nil port and an error code. +func (h *Handle) DevLinkPortAdd(Bus string, Device string, Flavour uint16, Attrs DevLinkPortAddAttrs) (*DevlinkPort, error) { + _, req, err := h.createCmdReq(nl.DEVLINK_CMD_PORT_NEW, Bus, Device) + if err != nil { + return nil, err + } + + req.AddData(nl.NewRtAttr(nl.DEVLINK_ATTR_PORT_FLAVOUR, nl.Uint16Attr(Flavour))) + + req.AddData(nl.NewRtAttr(nl.DEVLINK_ATTR_PORT_PCI_PF_NUMBER, nl.Uint16Attr(Attrs.PfNumber))) + if Flavour == nl.DEVLINK_PORT_FLAVOUR_PCI_SF && Attrs.SfNumberValid { + req.AddData(nl.NewRtAttr(nl.DEVLINK_ATTR_PORT_PCI_SF_NUMBER, nl.Uint32Attr(Attrs.SfNumber))) + } + if Attrs.PortIndexValid { + req.AddData(nl.NewRtAttr(nl.DEVLINK_ATTR_PORT_INDEX, nl.Uint32Attr(Attrs.PortIndex))) + } + if Attrs.ControllerValid { + req.AddData(nl.NewRtAttr(nl.DEVLINK_ATTR_PORT_CONTROLLER_NUMBER, nl.Uint32Attr(Attrs.Controller))) + } + respmsg, err := req.Execute(unix.NETLINK_GENERIC, 0) + if err != nil { + return nil, err + } + port, err := parseDevlinkPortMsg(respmsg) + return port, err +} + +// DevLinkPortAdd adds a devlink port and returns a port on success +// otherwise returns nil port and an error code. +func DevLinkPortAdd(Bus string, Device string, Flavour uint16, Attrs DevLinkPortAddAttrs) (*DevlinkPort, error) { + return pkgHandle.DevLinkPortAdd(Bus, Device, Flavour, Attrs) +} + +// DevLinkPortDel deletes a devlink port and returns success or error code. +func (h *Handle) DevLinkPortDel(Bus string, Device string, PortIndex uint32) error { + _, req, err := h.createCmdReq(nl.DEVLINK_CMD_PORT_DEL, Bus, Device) + if err != nil { + return err + } + + req.AddData(nl.NewRtAttr(nl.DEVLINK_ATTR_PORT_INDEX, nl.Uint32Attr(PortIndex))) + _, err = req.Execute(unix.NETLINK_GENERIC, 0) + return err +} + +// DevLinkPortDel deletes a devlink port and returns success or error code. +func DevLinkPortDel(Bus string, Device string, PortIndex uint32) error { + return pkgHandle.DevLinkPortDel(Bus, Device, PortIndex) +} + +// DevlinkPortFnSet sets one or more port function attributes specified by the attribute mask. +// It returns 0 on success or error code. +func (h *Handle) DevlinkPortFnSet(Bus string, Device string, PortIndex uint32, FnAttrs DevlinkPortFnSetAttrs) error { + _, req, err := h.createCmdReq(nl.DEVLINK_CMD_PORT_SET, Bus, Device) + if err != nil { + return err + } + + req.AddData(nl.NewRtAttr(nl.DEVLINK_ATTR_PORT_INDEX, nl.Uint32Attr(PortIndex))) + + fnAttr := nl.NewRtAttr(nl.DEVLINK_ATTR_PORT_FUNCTION|unix.NLA_F_NESTED, nil) + + if FnAttrs.HwAddrValid { + fnAttr.AddRtAttr(nl.DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR, []byte(FnAttrs.FnAttrs.HwAddr)) + } + + if FnAttrs.StateValid { + fnAttr.AddRtAttr(nl.DEVLINK_PORT_FN_ATTR_STATE, nl.Uint8Attr(FnAttrs.FnAttrs.State)) + } + req.AddData(fnAttr) + + _, err = req.Execute(unix.NETLINK_GENERIC, 0) + return err +} + +// DevlinkPortFnSet sets one or more port function attributes specified by the attribute mask. +// It returns 0 on success or error code. +func DevlinkPortFnSet(Bus string, Device string, PortIndex uint32, FnAttrs DevlinkPortFnSetAttrs) error { + return pkgHandle.DevlinkPortFnSet(Bus, Device, PortIndex, FnAttrs) +} + +// devlinkInfoGetter is function that is responsible for getting devlink info message +// this is introduced for test purpose +type devlinkInfoGetter func(bus, device string) ([]byte, error) + +// DevlinkGetDeviceInfoByName returns devlink info for selected device, +// otherwise returns an error code. +// Equivalent to: `devlink dev info $dev` +func (h *Handle) DevlinkGetDeviceInfoByName(Bus string, Device string, getInfoMsg devlinkInfoGetter) (*DevlinkDeviceInfo, error) { + info, err := h.DevlinkGetDeviceInfoByNameAsMap(Bus, Device, getInfoMsg) + if err != nil { + return nil, err + } + + return parseInfoData(info), nil +} + +// DevlinkGetDeviceInfoByName returns devlink info for selected device, +// otherwise returns an error code. +// Equivalent to: `devlink dev info $dev` +func DevlinkGetDeviceInfoByName(Bus string, Device string) (*DevlinkDeviceInfo, error) { + return pkgHandle.DevlinkGetDeviceInfoByName(Bus, Device, pkgHandle.getDevlinkInfoMsg) +} + +// DevlinkGetDeviceInfoByNameAsMap returns devlink info for selected device as a map, +// otherwise returns an error code. +// Equivalent to: `devlink dev info $dev` +func (h *Handle) DevlinkGetDeviceInfoByNameAsMap(Bus string, Device string, getInfoMsg devlinkInfoGetter) (map[string]string, error) { + response, err := getInfoMsg(Bus, Device) + if err != nil { + return nil, err + } + + info, err := parseInfoMsg(response) + if err != nil { + return nil, err + } + + return info, nil +} + +// DevlinkGetDeviceInfoByNameAsMap returns devlink info for selected device as a map, +// otherwise returns an error code. +// Equivalent to: `devlink dev info $dev` +func DevlinkGetDeviceInfoByNameAsMap(Bus string, Device string) (map[string]string, error) { + return pkgHandle.DevlinkGetDeviceInfoByNameAsMap(Bus, Device, pkgHandle.getDevlinkInfoMsg) +} + +// GetDevlinkInfo returns devlink info for target device, +// otherwise returns an error code. +func (d *DevlinkDevice) GetDevlinkInfo() (*DevlinkDeviceInfo, error) { + return pkgHandle.DevlinkGetDeviceInfoByName(d.BusName, d.DeviceName, pkgHandle.getDevlinkInfoMsg) +} + +// GetDevlinkInfoAsMap returns devlink info for target device as a map, +// otherwise returns an error code. +func (d *DevlinkDevice) GetDevlinkInfoAsMap() (map[string]string, error) { + return pkgHandle.DevlinkGetDeviceInfoByNameAsMap(d.BusName, d.DeviceName, pkgHandle.getDevlinkInfoMsg) +} + +func (h *Handle) getDevlinkInfoMsg(bus, device string) ([]byte, error) { + _, req, err := h.createCmdReq(nl.DEVLINK_CMD_INFO_GET, bus, device) + if err != nil { + return nil, err + } + + response, err := req.Execute(unix.NETLINK_GENERIC, 0) + if err != nil { + return nil, err + } + + if len(response) < 1 { + return nil, fmt.Errorf("getDevlinkInfoMsg: message too short") + } + + return response[0], nil +} + +func parseInfoMsg(msg []byte) (map[string]string, error) { + if len(msg) < nl.SizeofGenlmsg { + return nil, fmt.Errorf("parseInfoMsg: message too short") + } + + info := make(map[string]string) + err := collectInfoData(msg[nl.SizeofGenlmsg:], info) + + if err != nil { + return nil, err + } + + return info, nil +} + +func collectInfoData(msg []byte, data map[string]string) error { + attrs, err := nl.ParseRouteAttr(msg) + if err != nil { + return err + } + + for _, attr := range attrs { + switch attr.Attr.Type { + case nl.DEVLINK_ATTR_INFO_DRIVER_NAME: + data["driver"] = parseInfoValue(attr.Value) + case nl.DEVLINK_ATTR_INFO_SERIAL_NUMBER: + data["serialNumber"] = parseInfoValue(attr.Value) + case nl.DEVLINK_ATTR_INFO_VERSION_RUNNING, nl.DEVLINK_ATTR_INFO_VERSION_FIXED, + nl.DEVLINK_ATTR_INFO_VERSION_STORED: + key, value, err := getNestedInfoData(attr.Value) + if err != nil { + return err + } + data[key] = value + } + } + + if len(data) == 0 { + return fmt.Errorf("collectInfoData: could not read attributes") + } + + return nil +} + +func getNestedInfoData(msg []byte) (string, string, error) { + nestedAttrs, err := nl.ParseRouteAttr(msg) + + var key, value string + + if err != nil { + return "", "", err + } + + if len(nestedAttrs) != 2 { + return "", "", fmt.Errorf("getNestedInfoData: too few attributes in nested structure") + } + + for _, nestedAttr := range nestedAttrs { + switch nestedAttr.Attr.Type { + case nl.DEVLINK_ATTR_INFO_VERSION_NAME: + key = parseInfoValue(nestedAttr.Value) + case nl.DEVLINK_ATTR_INFO_VERSION_VALUE: + value = parseInfoValue(nestedAttr.Value) + } + } + + if key == "" { + return "", "", fmt.Errorf("getNestedInfoData: key not found") + } + + if value == "" { + return "", "", fmt.Errorf("getNestedInfoData: value not found") + } + + return key, value, nil +} + +func parseInfoData(data map[string]string) *DevlinkDeviceInfo { + info := new(DevlinkDeviceInfo) + for key, value := range data { + switch key { + case "driver": + info.Driver = value + case "serialNumber": + info.SerialNumber = value + case "board.id": + info.BoardID = value + case "fw.app": + info.FwApp = value + case "fw.app.bundle_id": + info.FwAppBoundleID = value + case "fw.app.name": + info.FwAppName = value + case "fw.bundle_id": + info.FwBoundleID = value + case "fw.mgmt": + info.FwMgmt = value + case "fw.mgmt.api": + info.FwMgmtAPI = value + case "fw.mgmt.build": + info.FwMgmtBuild = value + case "fw.netlist": + info.FwNetlist = value + case "fw.netlist.build": + info.FwNetlistBuild = value + case "fw.psid.api": + info.FwPsidAPI = value + case "fw.undi": + info.FwUndi = value + } + } + return info +} + +func parseInfoValue(value []byte) string { + v := strings.ReplaceAll(string(value), "\x00", "") + return strings.TrimSpace(v) +} diff --git a/vendor/github.com/vishvananda/netlink/filter.go b/vendor/github.com/vishvananda/netlink/filter.go index 88792eab0..84e1ca7a4 100644 --- a/vendor/github.com/vishvananda/netlink/filter.go +++ b/vendor/github.com/vishvananda/netlink/filter.go @@ -19,6 +19,7 @@ type FilterAttrs struct { Parent uint32 Priority uint16 // lower is higher priority Protocol uint16 // unix.ETH_P_* + Chain *uint32 } func (q FilterAttrs) String() string { @@ -27,6 +28,11 @@ func (q FilterAttrs) String() string { type TcAct int32 +const ( + TC_ACT_EXT_SHIFT = 28 + TC_ACT_EXT_VAL_MASK = (1 << TC_ACT_EXT_SHIFT) - 1 +) + const ( TC_ACT_UNSPEC TcAct = -1 TC_ACT_OK TcAct = 0 @@ -40,6 +46,22 @@ const ( TC_ACT_JUMP TcAct = 0x10000000 ) +func getTcActExt(local int32) int32 { + return local << TC_ACT_EXT_SHIFT +} + +func getTcActGotoChain() TcAct { + return TcAct(getTcActExt(2)) +} + +func getTcActExtOpcode(combined int32) int32 { + return combined & (^TC_ACT_EXT_VAL_MASK) +} + +func TcActExtCmp(combined int32, opcode int32) bool { + return getTcActExtOpcode(combined) == opcode +} + func (a TcAct) String() string { switch a { case TC_ACT_UNSPEC: @@ -63,6 +85,9 @@ func (a TcAct) String() string { case TC_ACT_JUMP: return "jump" } + if TcActExtCmp(int32(a), int32(getTcActGotoChain())) { + return "goto" + } return fmt.Sprintf("0x%x", int32(a)) } @@ -93,17 +118,32 @@ func (a TcPolAct) String() string { } type ActionAttrs struct { - Index int - Capab int - Action TcAct - Refcnt int - Bindcnt int + Index int + Capab int + Action TcAct + Refcnt int + Bindcnt int + Statistics *ActionStatistic + Timestamp *ActionTimestamp } func (q ActionAttrs) String() string { return fmt.Sprintf("{Index: %d, Capab: %x, Action: %s, Refcnt: %d, Bindcnt: %d}", q.Index, q.Capab, q.Action.String(), q.Refcnt, q.Bindcnt) } +type ActionTimestamp struct { + Installed uint64 + LastUsed uint64 + Expires uint64 + FirstUsed uint64 +} + +func (t ActionTimestamp) String() string { + return fmt.Sprintf("Installed %d LastUsed %d Expires %d FirstUsed %d", t.Installed, t.LastUsed, t.Expires, t.FirstUsed) +} + +type ActionStatistic ClassStatistics + // Action represents an action in any supported filter. type Action interface { Attrs() *ActionAttrs @@ -112,6 +152,7 @@ type Action interface { type GenericAction struct { ActionAttrs + Chain int32 } func (action *GenericAction) Type() string { @@ -157,6 +198,39 @@ func NewConnmarkAction() *ConnmarkAction { } } +type CsumUpdateFlags uint32 + +const ( + TCA_CSUM_UPDATE_FLAG_IPV4HDR CsumUpdateFlags = 1 + TCA_CSUM_UPDATE_FLAG_ICMP CsumUpdateFlags = 2 + TCA_CSUM_UPDATE_FLAG_IGMP CsumUpdateFlags = 4 + TCA_CSUM_UPDATE_FLAG_TCP CsumUpdateFlags = 8 + TCA_CSUM_UPDATE_FLAG_UDP CsumUpdateFlags = 16 + TCA_CSUM_UPDATE_FLAG_UDPLITE CsumUpdateFlags = 32 + TCA_CSUM_UPDATE_FLAG_SCTP CsumUpdateFlags = 64 +) + +type CsumAction struct { + ActionAttrs + UpdateFlags CsumUpdateFlags +} + +func (action *CsumAction) Type() string { + return "csum" +} + +func (action *CsumAction) Attrs() *ActionAttrs { + return &action.ActionAttrs +} + +func NewCsumAction() *CsumAction { + return &CsumAction{ + ActionAttrs: ActionAttrs{ + Action: TC_ACT_PIPE, + }, + } +} + type MirredAct uint8 func (a MirredAct) String() string { @@ -213,10 +287,11 @@ const ( type TunnelKeyAction struct { ActionAttrs - Action TunnelKeyAct - SrcAddr net.IP - DstAddr net.IP - KeyID uint32 + Action TunnelKeyAct + SrcAddr net.IP + DstAddr net.IP + KeyID uint32 + DestPort uint16 } func (action *TunnelKeyAction) Type() string { @@ -241,6 +316,7 @@ type SkbEditAction struct { PType *uint16 Priority *uint32 Mark *uint32 + Mask *uint32 } func (action *SkbEditAction) Type() string { @@ -259,6 +335,40 @@ func NewSkbEditAction() *SkbEditAction { } } +type PoliceAction struct { + ActionAttrs + Rate uint32 // in byte per second + Burst uint32 // in byte + RCellLog int + Mtu uint32 + Mpu uint16 // in byte + PeakRate uint32 // in byte per second + PCellLog int + AvRate uint32 // in byte per second + Overhead uint16 + LinkLayer int + ExceedAction TcPolAct + NotExceedAction TcPolAct +} + +func (action *PoliceAction) Type() string { + return "police" +} + +func (action *PoliceAction) Attrs() *ActionAttrs { + return &action.ActionAttrs +} + +func NewPoliceAction() *PoliceAction { + return &PoliceAction{ + RCellLog: -1, + PCellLog: -1, + LinkLayer: 1, // ETHERNET + ExceedAction: TC_POLICE_RECLASSIFY, + NotExceedAction: TC_POLICE_OK, + } +} + // MatchAll filters match all packets type MatchAll struct { FilterAttrs @@ -274,20 +384,21 @@ func (filter *MatchAll) Type() string { return "matchall" } -type FilterFwAttrs struct { - ClassId uint32 - InDev string - Mask uint32 - Index uint32 - Buffer uint32 - Mtu uint32 - Mpu uint16 - Rate uint32 - AvRate uint32 - PeakRate uint32 - Action TcPolAct - Overhead uint16 - LinkLayer int +type FwFilter struct { + FilterAttrs + ClassId uint32 + InDev string + Mask uint32 + Police *PoliceAction + Actions []Action +} + +func (filter *FwFilter) Attrs() *FilterAttrs { + return &filter.FilterAttrs +} + +func (filter *FwFilter) Type() string { + return "fw" } type BpfFilter struct { @@ -322,3 +433,30 @@ func (filter *GenericFilter) Attrs() *FilterAttrs { func (filter *GenericFilter) Type() string { return filter.FilterType } + +type PeditAction struct { + ActionAttrs + Proto uint8 + SrcMacAddr net.HardwareAddr + DstMacAddr net.HardwareAddr + SrcIP net.IP + DstIP net.IP + SrcPort uint16 + DstPort uint16 +} + +func (p *PeditAction) Attrs() *ActionAttrs { + return &p.ActionAttrs +} + +func (p *PeditAction) Type() string { + return "pedit" +} + +func NewPeditAction() *PeditAction { + return &PeditAction{ + ActionAttrs: ActionAttrs{ + Action: TC_ACT_PIPE, + }, + } +} diff --git a/vendor/github.com/vishvananda/netlink/filter_linux.go b/vendor/github.com/vishvananda/netlink/filter_linux.go index c56f314cd..87cd18f8e 100644 --- a/vendor/github.com/vishvananda/netlink/filter_linux.go +++ b/vendor/github.com/vishvananda/netlink/filter_linux.go @@ -37,9 +37,11 @@ type U32 struct { ClassId uint32 Divisor uint32 // Divisor MUST be power of 2. Hash uint32 + Link uint32 RedirIndex int Sel *TcU32Sel Actions []Action + Police *PoliceAction } func (filter *U32) Attrs() *FilterAttrs { @@ -50,74 +52,185 @@ func (filter *U32) Type() string { return "u32" } -// Fw filter filters on firewall marks -// NOTE: this is in filter_linux because it refers to nl.TcPolice which -// is defined in nl/tc_linux.go -type Fw struct { +type Flower struct { FilterAttrs - ClassId uint32 - // TODO remove nl type from interface - Police nl.TcPolice - InDev string - // TODO Action - Mask uint32 - AvRate uint32 - Rtab [256]uint32 - Ptab [256]uint32 -} - -func NewFw(attrs FilterAttrs, fattrs FilterFwAttrs) (*Fw, error) { - var rtab [256]uint32 - var ptab [256]uint32 - rcellLog := -1 - pcellLog := -1 - avrate := fattrs.AvRate / 8 - police := nl.TcPolice{} - police.Rate.Rate = fattrs.Rate / 8 - police.PeakRate.Rate = fattrs.PeakRate / 8 - buffer := fattrs.Buffer - linklayer := nl.LINKLAYER_ETHERNET + DestIP net.IP + DestIPMask net.IPMask + SrcIP net.IP + SrcIPMask net.IPMask + EthType uint16 + EncDestIP net.IP + EncDestIPMask net.IPMask + EncSrcIP net.IP + EncSrcIPMask net.IPMask + EncDestPort uint16 + EncKeyId uint32 + SkipHw bool + SkipSw bool + IPProto *nl.IPProto + DestPort uint16 + SrcPort uint16 - if fattrs.LinkLayer != nl.LINKLAYER_UNSPEC { - linklayer = fattrs.LinkLayer - } + Actions []Action +} - police.Action = int32(fattrs.Action) - if police.Rate.Rate != 0 { - police.Rate.Mpu = fattrs.Mpu - police.Rate.Overhead = fattrs.Overhead - if CalcRtable(&police.Rate, rtab[:], rcellLog, fattrs.Mtu, linklayer) < 0 { - return nil, errors.New("TBF: failed to calculate rate table") - } - police.Burst = uint32(Xmittime(uint64(police.Rate.Rate), uint32(buffer))) +func (filter *Flower) Attrs() *FilterAttrs { + return &filter.FilterAttrs +} + +func (filter *Flower) Type() string { + return "flower" +} + +func (filter *Flower) encodeIP(parent *nl.RtAttr, ip net.IP, mask net.IPMask, v4Type, v6Type int, v4MaskType, v6MaskType int) { + ipType := v4Type + maskType := v4MaskType + + encodeMask := mask + if mask == nil { + encodeMask = net.CIDRMask(32, 32) } - police.Mtu = fattrs.Mtu - if police.PeakRate.Rate != 0 { - police.PeakRate.Mpu = fattrs.Mpu - police.PeakRate.Overhead = fattrs.Overhead - if CalcRtable(&police.PeakRate, ptab[:], pcellLog, fattrs.Mtu, linklayer) < 0 { - return nil, errors.New("POLICE: failed to calculate peak rate table") + v4IP := ip.To4() + if v4IP == nil { + ipType = v6Type + maskType = v6MaskType + if mask == nil { + encodeMask = net.CIDRMask(128, 128) } + } else { + ip = v4IP } - return &Fw{ - FilterAttrs: attrs, - ClassId: fattrs.ClassId, - InDev: fattrs.InDev, - Mask: fattrs.Mask, - Police: police, - AvRate: avrate, - Rtab: rtab, - Ptab: ptab, - }, nil + parent.AddRtAttr(ipType, ip) + parent.AddRtAttr(maskType, encodeMask) } -func (filter *Fw) Attrs() *FilterAttrs { - return &filter.FilterAttrs +func (filter *Flower) encode(parent *nl.RtAttr) error { + if filter.EthType != 0 { + parent.AddRtAttr(nl.TCA_FLOWER_KEY_ETH_TYPE, htons(filter.EthType)) + } + if filter.SrcIP != nil { + filter.encodeIP(parent, filter.SrcIP, filter.SrcIPMask, + nl.TCA_FLOWER_KEY_IPV4_SRC, nl.TCA_FLOWER_KEY_IPV6_SRC, + nl.TCA_FLOWER_KEY_IPV4_SRC_MASK, nl.TCA_FLOWER_KEY_IPV6_SRC_MASK) + } + if filter.DestIP != nil { + filter.encodeIP(parent, filter.DestIP, filter.DestIPMask, + nl.TCA_FLOWER_KEY_IPV4_DST, nl.TCA_FLOWER_KEY_IPV6_DST, + nl.TCA_FLOWER_KEY_IPV4_DST_MASK, nl.TCA_FLOWER_KEY_IPV6_DST_MASK) + } + if filter.EncSrcIP != nil { + filter.encodeIP(parent, filter.EncSrcIP, filter.EncSrcIPMask, + nl.TCA_FLOWER_KEY_ENC_IPV4_SRC, nl.TCA_FLOWER_KEY_ENC_IPV6_SRC, + nl.TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK, nl.TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK) + } + if filter.EncDestIP != nil { + filter.encodeIP(parent, filter.EncDestIP, filter.EncSrcIPMask, + nl.TCA_FLOWER_KEY_ENC_IPV4_DST, nl.TCA_FLOWER_KEY_ENC_IPV6_DST, + nl.TCA_FLOWER_KEY_ENC_IPV4_DST_MASK, nl.TCA_FLOWER_KEY_ENC_IPV6_DST_MASK) + } + if filter.EncDestPort != 0 { + parent.AddRtAttr(nl.TCA_FLOWER_KEY_ENC_UDP_DST_PORT, htons(filter.EncDestPort)) + } + if filter.EncKeyId != 0 { + parent.AddRtAttr(nl.TCA_FLOWER_KEY_ENC_KEY_ID, htonl(filter.EncKeyId)) + } + if filter.IPProto != nil { + ipproto := *filter.IPProto + parent.AddRtAttr(nl.TCA_FLOWER_KEY_IP_PROTO, ipproto.Serialize()) + if filter.SrcPort != 0 { + switch ipproto { + case nl.IPPROTO_TCP: + parent.AddRtAttr(nl.TCA_FLOWER_KEY_TCP_SRC, htons(filter.SrcPort)) + case nl.IPPROTO_UDP: + parent.AddRtAttr(nl.TCA_FLOWER_KEY_UDP_SRC, htons(filter.SrcPort)) + case nl.IPPROTO_SCTP: + parent.AddRtAttr(nl.TCA_FLOWER_KEY_SCTP_SRC, htons(filter.SrcPort)) + } + } + if filter.DestPort != 0 { + switch ipproto { + case nl.IPPROTO_TCP: + parent.AddRtAttr(nl.TCA_FLOWER_KEY_TCP_DST, htons(filter.DestPort)) + case nl.IPPROTO_UDP: + parent.AddRtAttr(nl.TCA_FLOWER_KEY_UDP_DST, htons(filter.DestPort)) + case nl.IPPROTO_SCTP: + parent.AddRtAttr(nl.TCA_FLOWER_KEY_SCTP_DST, htons(filter.DestPort)) + } + } + } + + var flags uint32 = 0 + if filter.SkipHw { + flags |= nl.TCA_CLS_FLAGS_SKIP_HW + } + if filter.SkipSw { + flags |= nl.TCA_CLS_FLAGS_SKIP_SW + } + parent.AddRtAttr(nl.TCA_FLOWER_FLAGS, htonl(flags)) + + actionsAttr := parent.AddRtAttr(nl.TCA_FLOWER_ACT, nil) + if err := EncodeActions(actionsAttr, filter.Actions); err != nil { + return err + } + return nil } -func (filter *Fw) Type() string { - return "fw" +func (filter *Flower) decode(data []syscall.NetlinkRouteAttr) error { + for _, datum := range data { + switch datum.Attr.Type { + case nl.TCA_FLOWER_KEY_ETH_TYPE: + filter.EthType = ntohs(datum.Value) + case nl.TCA_FLOWER_KEY_IPV4_SRC, nl.TCA_FLOWER_KEY_IPV6_SRC: + filter.SrcIP = datum.Value + case nl.TCA_FLOWER_KEY_IPV4_SRC_MASK, nl.TCA_FLOWER_KEY_IPV6_SRC_MASK: + filter.SrcIPMask = datum.Value + case nl.TCA_FLOWER_KEY_IPV4_DST, nl.TCA_FLOWER_KEY_IPV6_DST: + filter.DestIP = datum.Value + case nl.TCA_FLOWER_KEY_IPV4_DST_MASK, nl.TCA_FLOWER_KEY_IPV6_DST_MASK: + filter.DestIPMask = datum.Value + case nl.TCA_FLOWER_KEY_ENC_IPV4_SRC, nl.TCA_FLOWER_KEY_ENC_IPV6_SRC: + filter.EncSrcIP = datum.Value + case nl.TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK, nl.TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK: + filter.EncSrcIPMask = datum.Value + case nl.TCA_FLOWER_KEY_ENC_IPV4_DST, nl.TCA_FLOWER_KEY_ENC_IPV6_DST: + filter.EncDestIP = datum.Value + case nl.TCA_FLOWER_KEY_ENC_IPV4_DST_MASK, nl.TCA_FLOWER_KEY_ENC_IPV6_DST_MASK: + filter.EncDestIPMask = datum.Value + case nl.TCA_FLOWER_KEY_ENC_UDP_DST_PORT: + filter.EncDestPort = ntohs(datum.Value) + case nl.TCA_FLOWER_KEY_ENC_KEY_ID: + filter.EncKeyId = ntohl(datum.Value) + case nl.TCA_FLOWER_KEY_IP_PROTO: + val := new(nl.IPProto) + *val = nl.IPProto(datum.Value[0]) + filter.IPProto = val + case nl.TCA_FLOWER_KEY_TCP_SRC, nl.TCA_FLOWER_KEY_UDP_SRC, nl.TCA_FLOWER_KEY_SCTP_SRC: + filter.SrcPort = ntohs(datum.Value) + case nl.TCA_FLOWER_KEY_TCP_DST, nl.TCA_FLOWER_KEY_UDP_DST, nl.TCA_FLOWER_KEY_SCTP_DST: + filter.DestPort = ntohs(datum.Value) + case nl.TCA_FLOWER_ACT: + tables, err := nl.ParseRouteAttr(datum.Value) + if err != nil { + return err + } + filter.Actions, err = parseActions(tables) + if err != nil { + return err + } + case nl.TCA_FLOWER_FLAGS: + attr := nl.DeserializeUint32Bitfield(datum.Value) + skipSw := attr.Value & nl.TCA_CLS_FLAGS_SKIP_HW + skipHw := attr.Value & nl.TCA_CLS_FLAGS_SKIP_SW + if skipSw != 0 { + filter.SkipSw = true + } + if skipHw != 0 { + filter.SkipHw = true + } + } + } + return nil } // FilterDel will delete a filter from the system. @@ -129,19 +242,7 @@ func FilterDel(filter Filter) error { // FilterDel will delete a filter from the system. // Equivalent to: `tc filter del $filter` func (h *Handle) FilterDel(filter Filter) error { - req := h.newNetlinkRequest(unix.RTM_DELTFILTER, unix.NLM_F_ACK) - base := filter.Attrs() - msg := &nl.TcMsg{ - Family: nl.FAMILY_ALL, - Ifindex: int32(base.LinkIndex), - Handle: base.Handle, - Parent: base.Parent, - Info: MakeHandle(base.Priority, nl.Swap16(base.Protocol)), - } - req.AddData(msg) - - _, err := req.Execute(unix.NETLINK_ROUTE, 0) - return err + return h.filterModify(filter, unix.RTM_DELTFILTER, 0) } // FilterAdd will add a filter to the system. @@ -153,7 +254,7 @@ func FilterAdd(filter Filter) error { // FilterAdd will add a filter to the system. // Equivalent to: `tc filter add $filter` func (h *Handle) FilterAdd(filter Filter) error { - return h.filterModify(filter, unix.NLM_F_CREATE|unix.NLM_F_EXCL) + return h.filterModify(filter, unix.RTM_NEWTFILTER, unix.NLM_F_CREATE|unix.NLM_F_EXCL) } // FilterReplace will replace a filter. @@ -165,12 +266,11 @@ func FilterReplace(filter Filter) error { // FilterReplace will replace a filter. // Equivalent to: `tc filter replace $filter` func (h *Handle) FilterReplace(filter Filter) error { - return h.filterModify(filter, unix.NLM_F_CREATE) + return h.filterModify(filter, unix.RTM_NEWTFILTER, unix.NLM_F_CREATE) } -func (h *Handle) filterModify(filter Filter, flags int) error { - native = nl.NativeEndian() - req := h.newNetlinkRequest(unix.RTM_NEWTFILTER, flags|unix.NLM_F_ACK) +func (h *Handle) filterModify(filter Filter, proto, flags int) error { + req := h.newNetlinkRequest(proto, flags|unix.NLM_F_ACK) base := filter.Attrs() msg := &nl.TcMsg{ Family: nl.FAMILY_ALL, @@ -180,6 +280,9 @@ func (h *Handle) filterModify(filter Filter, flags int) error { Info: MakeHandle(base.Priority, nl.Swap16(base.Protocol)), } req.AddData(msg) + if filter.Attrs().Chain != nil { + req.AddData(nl.NewRtAttr(nl.TCA_CHAIN, nl.Uint32Attr(*filter.Attrs().Chain))) + } req.AddData(nl.NewRtAttr(nl.TCA_KIND, nl.ZeroTerminated(filter.Type()))) options := nl.NewRtAttr(nl.TCA_OPTIONS, nil) @@ -226,6 +329,15 @@ func (h *Handle) filterModify(filter Filter, flags int) error { if filter.Hash != 0 { options.AddRtAttr(nl.TCA_U32_HASH, nl.Uint32Attr(filter.Hash)) } + if filter.Link != 0 { + options.AddRtAttr(nl.TCA_U32_LINK, nl.Uint32Attr(filter.Link)) + } + if filter.Police != nil { + police := options.AddRtAttr(nl.TCA_U32_POLICE, nil) + if err := encodePolice(police, filter.Police); err != nil { + return err + } + } actionsAttr := options.AddRtAttr(nl.TCA_U32_ACT, nil) // backwards compatibility if filter.RedirIndex != 0 { @@ -234,7 +346,7 @@ func (h *Handle) filterModify(filter Filter, flags int) error { if err := EncodeActions(actionsAttr, filter.Actions); err != nil { return err } - case *Fw: + case *FwFilter: if filter.Mask != 0 { b := make([]byte, 4) native.PutUint32(b, filter.Mask) @@ -243,17 +355,10 @@ func (h *Handle) filterModify(filter Filter, flags int) error { if filter.InDev != "" { options.AddRtAttr(nl.TCA_FW_INDEV, nl.ZeroTerminated(filter.InDev)) } - if (filter.Police != nl.TcPolice{}) { - + if filter.Police != nil { police := options.AddRtAttr(nl.TCA_FW_POLICE, nil) - police.AddRtAttr(nl.TCA_POLICE_TBF, filter.Police.Serialize()) - if (filter.Police.Rate != nl.TcRateSpec{}) { - payload := SerializeRtab(filter.Rtab) - police.AddRtAttr(nl.TCA_POLICE_RATE, payload) - } - if (filter.Police.PeakRate != nl.TcRateSpec{}) { - payload := SerializeRtab(filter.Ptab) - police.AddRtAttr(nl.TCA_POLICE_PEAKRATE, payload) + if err := encodePolice(police, filter.Police); err != nil { + return err } } if filter.ClassId != 0 { @@ -261,6 +366,10 @@ func (h *Handle) filterModify(filter Filter, flags int) error { native.PutUint32(b, filter.ClassId) options.AddRtAttr(nl.TCA_FW_CLASSID, b) } + actionsAttr := options.AddRtAttr(nl.TCA_FW_ACT, nil) + if err := EncodeActions(actionsAttr, filter.Actions); err != nil { + return err + } case *BpfFilter: var bpfFlags uint32 if filter.ClassId != 0 { @@ -284,8 +393,11 @@ func (h *Handle) filterModify(filter Filter, flags int) error { if filter.ClassId != 0 { options.AddRtAttr(nl.TCA_MATCHALL_CLASSID, nl.Uint32Attr(filter.ClassId)) } + case *Flower: + if err := filter.encode(options); err != nil { + return err + } } - req.AddData(options) _, err := req.Execute(unix.NETLINK_ROUTE, 0) return err @@ -347,11 +459,13 @@ func (h *Handle) FilterList(link Link, parent uint32) ([]Filter, error) { case "u32": filter = &U32{} case "fw": - filter = &Fw{} + filter = &FwFilter{} case "bpf": filter = &BpfFilter{} case "matchall": filter = &MatchAll{} + case "flower": + filter = &Flower{} default: filter = &GenericFilter{FilterType: filterType} } @@ -381,9 +495,18 @@ func (h *Handle) FilterList(link Link, parent uint32) ([]Filter, error) { if err != nil { return nil, err } + case "flower": + detailed, err = parseFlowerData(filter, data) + if err != nil { + return nil, err + } default: detailed = true } + case nl.TCA_CHAIN: + val := new(uint32) + *val = native.Uint32(attr.Value) + base.Chain = val } } // only return the detailed version of the filter @@ -412,6 +535,61 @@ func toAttrs(tcgen *nl.TcGen, attrs *ActionAttrs) { attrs.Bindcnt = int(tcgen.Bindcnt) } +func toTimeStamp(tcf *nl.Tcf) *ActionTimestamp { + return &ActionTimestamp{ + Installed: tcf.Install, + LastUsed: tcf.LastUse, + Expires: tcf.Expires, + FirstUsed: tcf.FirstUse} +} + +func encodePolice(attr *nl.RtAttr, action *PoliceAction) error { + var rtab [256]uint32 + var ptab [256]uint32 + police := nl.TcPolice{} + police.Index = uint32(action.Attrs().Index) + police.Bindcnt = int32(action.Attrs().Bindcnt) + police.Capab = uint32(action.Attrs().Capab) + police.Refcnt = int32(action.Attrs().Refcnt) + police.Rate.Rate = action.Rate + police.PeakRate.Rate = action.PeakRate + police.Action = int32(action.ExceedAction) + + if police.Rate.Rate != 0 { + police.Rate.Mpu = action.Mpu + police.Rate.Overhead = action.Overhead + if CalcRtable(&police.Rate, rtab[:], action.RCellLog, action.Mtu, action.LinkLayer) < 0 { + return errors.New("TBF: failed to calculate rate table") + } + police.Burst = Xmittime(uint64(police.Rate.Rate), action.Burst) + } + + police.Mtu = action.Mtu + if police.PeakRate.Rate != 0 { + police.PeakRate.Mpu = action.Mpu + police.PeakRate.Overhead = action.Overhead + if CalcRtable(&police.PeakRate, ptab[:], action.PCellLog, action.Mtu, action.LinkLayer) < 0 { + return errors.New("POLICE: failed to calculate peak rate table") + } + } + + attr.AddRtAttr(nl.TCA_POLICE_TBF, police.Serialize()) + if police.Rate.Rate != 0 { + attr.AddRtAttr(nl.TCA_POLICE_RATE, SerializeRtab(rtab)) + } + if police.PeakRate.Rate != 0 { + attr.AddRtAttr(nl.TCA_POLICE_PEAKRATE, SerializeRtab(ptab)) + } + if action.AvRate != 0 { + attr.AddRtAttr(nl.TCA_POLICE_AVRATE, nl.Uint32Attr(action.AvRate)) + } + if action.NotExceedAction != 0 { + attr.AddRtAttr(nl.TCA_POLICE_RESULT, nl.Uint32Attr(uint32(action.NotExceedAction))) + } + + return nil +} + func EncodeActions(attr *nl.RtAttr, actions []Action) error { tabIndex := int(nl.TCA_ACT_TAB) @@ -419,6 +597,14 @@ func EncodeActions(attr *nl.RtAttr, actions []Action) error { switch action := action.(type) { default: return fmt.Errorf("unknown action type %s", action.Type()) + case *PoliceAction: + table := attr.AddRtAttr(tabIndex, nil) + tabIndex++ + table.AddRtAttr(nl.TCA_ACT_KIND, nl.ZeroTerminated("police")) + aopts := table.AddRtAttr(nl.TCA_ACT_OPTIONS, nil) + if err := encodePolice(aopts, action); err != nil { + return err + } case *MirredAction: table := attr.AddRtAttr(tabIndex, nil) tabIndex++ @@ -456,6 +642,9 @@ func EncodeActions(attr *nl.RtAttr, actions []Action) error { } else { return fmt.Errorf("invalid dst addr %s for tunnel_key action", action.DstAddr) } + if action.DestPort != 0 { + aopts.AddRtAttr(nl.TCA_TUNNEL_KEY_ENC_DST_PORT, htons(action.DestPort)) + } } case *SkbEditAction: table := attr.AddRtAttr(tabIndex, nil) @@ -477,6 +666,9 @@ func EncodeActions(attr *nl.RtAttr, actions []Action) error { if action.Mark != nil { aopts.AddRtAttr(nl.TCA_SKBEDIT_MARK, nl.Uint32Attr(*action.Mark)) } + if action.Mask != nil { + aopts.AddRtAttr(nl.TCA_SKBEDIT_MASK, nl.Uint32Attr(*action.Mask)) + } case *ConnmarkAction: table := attr.AddRtAttr(tabIndex, nil) tabIndex++ @@ -487,6 +679,16 @@ func EncodeActions(attr *nl.RtAttr, actions []Action) error { } toTcGen(action.Attrs(), &connmark.TcGen) aopts.AddRtAttr(nl.TCA_CONNMARK_PARMS, connmark.Serialize()) + case *CsumAction: + table := attr.AddRtAttr(tabIndex, nil) + tabIndex++ + table.AddRtAttr(nl.TCA_ACT_KIND, nl.ZeroTerminated("csum")) + aopts := table.AddRtAttr(nl.TCA_ACT_OPTIONS, nil) + csum := nl.TcCsum{ + UpdateFlags: uint32(action.UpdateFlags), + } + toTcGen(action.Attrs(), &csum.TcGen) + aopts.AddRtAttr(nl.TCA_CSUM_PARMS, csum.Serialize()) case *BpfAction: table := attr.AddRtAttr(tabIndex, nil) tabIndex++ @@ -505,16 +707,64 @@ func EncodeActions(attr *nl.RtAttr, actions []Action) error { gen := nl.TcGen{} toTcGen(action.Attrs(), &gen) aopts.AddRtAttr(nl.TCA_GACT_PARMS, gen.Serialize()) + case *PeditAction: + table := attr.AddRtAttr(tabIndex, nil) + tabIndex++ + pedit := nl.TcPedit{} + if action.SrcMacAddr != nil { + pedit.SetEthSrc(action.SrcMacAddr) + } + if action.DstMacAddr != nil { + pedit.SetEthDst(action.DstMacAddr) + } + if action.SrcIP != nil { + pedit.SetSrcIP(action.SrcIP) + } + if action.DstIP != nil { + pedit.SetDstIP(action.DstIP) + } + if action.SrcPort != 0 { + pedit.SetSrcPort(action.SrcPort, action.Proto) + } + if action.DstPort != 0 { + pedit.SetDstPort(action.DstPort, action.Proto) + } + pedit.Encode(table) } } return nil } +func parsePolice(data syscall.NetlinkRouteAttr, police *PoliceAction) { + switch data.Attr.Type { + case nl.TCA_POLICE_RESULT: + police.NotExceedAction = TcPolAct(native.Uint32(data.Value[0:4])) + case nl.TCA_POLICE_AVRATE: + police.AvRate = native.Uint32(data.Value[0:4]) + case nl.TCA_POLICE_TBF: + p := *nl.DeserializeTcPolice(data.Value) + police.ActionAttrs = ActionAttrs{} + police.Attrs().Index = int(p.Index) + police.Attrs().Bindcnt = int(p.Bindcnt) + police.Attrs().Capab = int(p.Capab) + police.Attrs().Refcnt = int(p.Refcnt) + police.ExceedAction = TcPolAct(p.Action) + police.Rate = p.Rate.Rate + police.PeakRate = p.PeakRate.Rate + police.Burst = Xmitsize(uint64(p.Rate.Rate), p.Burst) + police.Mtu = p.Mtu + police.LinkLayer = int(p.Rate.Linklayer) & nl.TC_LINKLAYER_MASK + police.Overhead = p.Rate.Overhead + } +} + func parseActions(tables []syscall.NetlinkRouteAttr) ([]Action, error) { var actions []Action for _, table := range tables { var action Action var actionType string + var actionnStatistic *ActionStatistic + var actionTimestamp *ActionTimestamp aattrs, err := nl.ParseRouteAttr(table.Value) if err != nil { return nil, err @@ -532,12 +782,18 @@ func parseActions(tables []syscall.NetlinkRouteAttr) ([]Action, error) { action = &BpfAction{} case "connmark": action = &ConnmarkAction{} + case "csum": + action = &CsumAction{} case "gact": action = &GenericAction{} case "tunnel_key": action = &TunnelKeyAction{} case "skbedit": action = &SkbEditAction{} + case "police": + action = &PoliceAction{} + case "pedit": + action = &PeditAction{} default: break nextattr } @@ -556,7 +812,11 @@ func parseActions(tables []syscall.NetlinkRouteAttr) ([]Action, error) { toAttrs(&mirred.TcGen, action.Attrs()) action.(*MirredAction).Ifindex = int(mirred.Ifindex) action.(*MirredAction).MirredAction = MirredAct(mirred.Eaction) + case nl.TCA_MIRRED_TM: + tcTs := nl.DeserializeTcf(adatum.Value) + actionTimestamp = toTimeStamp(tcTs) } + case "tunnel_key": switch adatum.Attr.Type { case nl.TCA_TUNNEL_KEY_PARMS: @@ -566,12 +826,15 @@ func parseActions(tables []syscall.NetlinkRouteAttr) ([]Action, error) { action.(*TunnelKeyAction).Action = TunnelKeyAct(tun.Action) case nl.TCA_TUNNEL_KEY_ENC_KEY_ID: action.(*TunnelKeyAction).KeyID = networkOrder.Uint32(adatum.Value[0:4]) - case nl.TCA_TUNNEL_KEY_ENC_IPV6_SRC: - case nl.TCA_TUNNEL_KEY_ENC_IPV4_SRC: - action.(*TunnelKeyAction).SrcAddr = net.IP(adatum.Value[:]) - case nl.TCA_TUNNEL_KEY_ENC_IPV6_DST: - case nl.TCA_TUNNEL_KEY_ENC_IPV4_DST: - action.(*TunnelKeyAction).DstAddr = net.IP(adatum.Value[:]) + case nl.TCA_TUNNEL_KEY_ENC_IPV6_SRC, nl.TCA_TUNNEL_KEY_ENC_IPV4_SRC: + action.(*TunnelKeyAction).SrcAddr = adatum.Value[:] + case nl.TCA_TUNNEL_KEY_ENC_IPV6_DST, nl.TCA_TUNNEL_KEY_ENC_IPV4_DST: + action.(*TunnelKeyAction).DstAddr = adatum.Value[:] + case nl.TCA_TUNNEL_KEY_ENC_DST_PORT: + action.(*TunnelKeyAction).DestPort = ntohs(adatum.Value) + case nl.TCA_TUNNEL_KEY_TM: + tcTs := nl.DeserializeTcf(adatum.Value) + actionTimestamp = toTimeStamp(tcTs) } case "skbedit": switch adatum.Attr.Type { @@ -582,6 +845,9 @@ func parseActions(tables []syscall.NetlinkRouteAttr) ([]Action, error) { case nl.TCA_SKBEDIT_MARK: mark := native.Uint32(adatum.Value[0:4]) action.(*SkbEditAction).Mark = &mark + case nl.TCA_SKBEDIT_MASK: + mask := native.Uint32(adatum.Value[0:4]) + action.(*SkbEditAction).Mask = &mask case nl.TCA_SKBEDIT_PRIORITY: priority := native.Uint32(adatum.Value[0:4]) action.(*SkbEditAction).Priority = &priority @@ -591,6 +857,9 @@ func parseActions(tables []syscall.NetlinkRouteAttr) ([]Action, error) { case nl.TCA_SKBEDIT_QUEUE_MAPPING: mapping := native.Uint16(adatum.Value[0:2]) action.(*SkbEditAction).QueueMapping = &mapping + case nl.TCA_SKBEDIT_TM: + tcTs := nl.DeserializeTcf(adatum.Value) + actionTimestamp = toTimeStamp(tcTs) } case "bpf": switch adatum.Attr.Type { @@ -601,6 +870,9 @@ func parseActions(tables []syscall.NetlinkRouteAttr) ([]Action, error) { action.(*BpfAction).Fd = int(native.Uint32(adatum.Value[0:4])) case nl.TCA_ACT_BPF_NAME: action.(*BpfAction).Name = string(adatum.Value[:len(adatum.Value)-1]) + case nl.TCA_ACT_BPF_TM: + tcTs := nl.DeserializeTcf(adatum.Value) + actionTimestamp = toTimeStamp(tcTs) } case "connmark": switch adatum.Attr.Type { @@ -609,24 +881,53 @@ func parseActions(tables []syscall.NetlinkRouteAttr) ([]Action, error) { action.(*ConnmarkAction).ActionAttrs = ActionAttrs{} toAttrs(&connmark.TcGen, action.Attrs()) action.(*ConnmarkAction).Zone = connmark.Zone + case nl.TCA_CONNMARK_TM: + tcTs := nl.DeserializeTcf(adatum.Value) + actionTimestamp = toTimeStamp(tcTs) + } + case "csum": + switch adatum.Attr.Type { + case nl.TCA_CSUM_PARMS: + csum := *nl.DeserializeTcCsum(adatum.Value) + action.(*CsumAction).ActionAttrs = ActionAttrs{} + toAttrs(&csum.TcGen, action.Attrs()) + action.(*CsumAction).UpdateFlags = CsumUpdateFlags(csum.UpdateFlags) + case nl.TCA_CSUM_TM: + tcTs := nl.DeserializeTcf(adatum.Value) + actionTimestamp = toTimeStamp(tcTs) } case "gact": switch adatum.Attr.Type { case nl.TCA_GACT_PARMS: gen := *nl.DeserializeTcGen(adatum.Value) toAttrs(&gen, action.Attrs()) + if action.Attrs().Action.String() == "goto" { + action.(*GenericAction).Chain = TC_ACT_EXT_VAL_MASK & gen.Action + } + case nl.TCA_GACT_TM: + tcTs := nl.DeserializeTcf(adatum.Value) + actionTimestamp = toTimeStamp(tcTs) } + case "police": + parsePolice(adatum, action.(*PoliceAction)) } } + case nl.TCA_ACT_STATS: + s, err := parseTcStats2(aattr.Value) + if err != nil { + return nil, err + } + actionnStatistic = (*ActionStatistic)(s) } } + action.Attrs().Statistics = actionnStatistic + action.Attrs().Timestamp = actionTimestamp actions = append(actions, action) } return actions, nil } func parseU32Data(filter Filter, data []syscall.NetlinkRouteAttr) (bool, error) { - native = nl.NativeEndian() u32 := filter.(*U32) detailed := false for _, datum := range data { @@ -658,20 +959,28 @@ func parseU32Data(filter Filter, data []syscall.NetlinkRouteAttr) (bool, error) u32.RedirIndex = int(action.Ifindex) } } + case nl.TCA_U32_POLICE: + var police PoliceAction + adata, _ := nl.ParseRouteAttr(datum.Value) + for _, aattr := range adata { + parsePolice(aattr, &police) + } + u32.Police = &police case nl.TCA_U32_CLASSID: u32.ClassId = native.Uint32(datum.Value) case nl.TCA_U32_DIVISOR: u32.Divisor = native.Uint32(datum.Value) case nl.TCA_U32_HASH: u32.Hash = native.Uint32(datum.Value) + case nl.TCA_U32_LINK: + u32.Link = native.Uint32(datum.Value) } } return detailed, nil } func parseFwData(filter Filter, data []syscall.NetlinkRouteAttr) (bool, error) { - native = nl.NativeEndian() - fw := filter.(*Fw) + fw := filter.(*FwFilter) detailed := true for _, datum := range data { switch datum.Attr.Type { @@ -682,16 +991,20 @@ func parseFwData(filter Filter, data []syscall.NetlinkRouteAttr) (bool, error) { case nl.TCA_FW_INDEV: fw.InDev = string(datum.Value[:len(datum.Value)-1]) case nl.TCA_FW_POLICE: + var police PoliceAction adata, _ := nl.ParseRouteAttr(datum.Value) for _, aattr := range adata { - switch aattr.Attr.Type { - case nl.TCA_POLICE_TBF: - fw.Police = *nl.DeserializeTcPolice(aattr.Value) - case nl.TCA_POLICE_RATE: - fw.Rtab = DeserializeRtab(aattr.Value) - case nl.TCA_POLICE_PEAKRATE: - fw.Ptab = DeserializeRtab(aattr.Value) - } + parsePolice(aattr, &police) + } + fw.Police = &police + case nl.TCA_FW_ACT: + tables, err := nl.ParseRouteAttr(datum.Value) + if err != nil { + return detailed, err + } + fw.Actions, err = parseActions(tables) + if err != nil { + return detailed, err } } } @@ -699,7 +1012,6 @@ func parseFwData(filter Filter, data []syscall.NetlinkRouteAttr) (bool, error) { } func parseBpfData(filter Filter, data []syscall.NetlinkRouteAttr) (bool, error) { - native = nl.NativeEndian() bpf := filter.(*BpfFilter) detailed := true for _, datum := range data { @@ -718,14 +1030,13 @@ func parseBpfData(filter Filter, data []syscall.NetlinkRouteAttr) (bool, error) case nl.TCA_BPF_ID: bpf.Id = int(native.Uint32(datum.Value[0:4])) case nl.TCA_BPF_TAG: - bpf.Tag = hex.EncodeToString(datum.Value[:len(datum.Value)-1]) + bpf.Tag = hex.EncodeToString(datum.Value) } } return detailed, nil } func parseMatchAllData(filter Filter, data []syscall.NetlinkRouteAttr) (bool, error) { - native = nl.NativeEndian() matchall := filter.(*MatchAll) detailed := true for _, datum := range data { @@ -746,6 +1057,10 @@ func parseMatchAllData(filter Filter, data []syscall.NetlinkRouteAttr) (bool, er return detailed, nil } +func parseFlowerData(filter Filter, data []syscall.NetlinkRouteAttr) (bool, error) { + return true, filter.(*Flower).decode(data) +} + func AlignToAtm(size uint) uint { var linksize, cells int cells = int(size / nl.ATM_CELL_PAYLOAD) @@ -783,7 +1098,7 @@ func CalcRtable(rate *nl.TcRateSpec, rtab []uint32, cellLog int, mtu uint32, lin } for i := 0; i < 256; i++ { sz = AdjustSize(uint((i+1)<= nl.IPSET_ERR_PRIVATE { + err = nl.IPSetError(uintptr(errno)) + } + } + return +} + +func ipsetUnserialize(msgs [][]byte) (result IPSetResult) { + for _, msg := range msgs { + result.unserialize(msg) + } + return result +} + +func (result *IPSetResult) unserialize(msg []byte) { + result.Nfgenmsg = nl.DeserializeNfgenmsg(msg) + + for attr := range nl.ParseAttributes(msg[4:]) { + switch attr.Type { + case nl.IPSET_ATTR_PROTOCOL: + result.Protocol = attr.Value[0] + case nl.IPSET_ATTR_SETNAME: + result.SetName = nl.BytesToString(attr.Value) + case nl.IPSET_ATTR_COMMENT: + result.Comment = nl.BytesToString(attr.Value) + case nl.IPSET_ATTR_TYPENAME: + result.TypeName = nl.BytesToString(attr.Value) + case nl.IPSET_ATTR_REVISION: + result.Revision = attr.Value[0] + case nl.IPSET_ATTR_FAMILY: + result.Family = attr.Value[0] + case nl.IPSET_ATTR_FLAGS: + result.Flags = attr.Value[0] + case nl.IPSET_ATTR_DATA | nl.NLA_F_NESTED: + result.parseAttrData(attr.Value) + case nl.IPSET_ATTR_ADT | nl.NLA_F_NESTED: + result.parseAttrADT(attr.Value) + case nl.IPSET_ATTR_PROTOCOL_MIN: + result.ProtocolMinVersion = attr.Value[0] + case nl.IPSET_ATTR_MARKMASK: + result.MarkMask = attr.Uint32() + default: + log.Printf("unknown ipset attribute from kernel: %+v %v", attr, attr.Type&nl.NLA_TYPE_MASK) + } + } +} + +func (result *IPSetResult) parseAttrData(data []byte) { + for attr := range nl.ParseAttributes(data) { + switch attr.Type { + case nl.IPSET_ATTR_HASHSIZE | nl.NLA_F_NET_BYTEORDER: + result.HashSize = attr.Uint32() + case nl.IPSET_ATTR_MAXELEM | nl.NLA_F_NET_BYTEORDER: + result.MaxElements = attr.Uint32() + case nl.IPSET_ATTR_TIMEOUT | nl.NLA_F_NET_BYTEORDER: + val := attr.Uint32() + result.Timeout = &val + case nl.IPSET_ATTR_ELEMENTS | nl.NLA_F_NET_BYTEORDER: + result.NumEntries = attr.Uint32() + case nl.IPSET_ATTR_REFERENCES | nl.NLA_F_NET_BYTEORDER: + result.References = attr.Uint32() + case nl.IPSET_ATTR_MEMSIZE | nl.NLA_F_NET_BYTEORDER: + result.SizeInMemory = attr.Uint32() + case nl.IPSET_ATTR_CADT_FLAGS | nl.NLA_F_NET_BYTEORDER: + result.CadtFlags = attr.Uint32() + case nl.IPSET_ATTR_IP | nl.NLA_F_NESTED: + for nested := range nl.ParseAttributes(attr.Value) { + switch nested.Type { + case nl.IPSET_ATTR_IP | nl.NLA_F_NET_BYTEORDER: + result.Entries = append(result.Entries, IPSetEntry{IP: nested.Value}) + case nl.IPSET_ATTR_IP: + result.IPFrom = nested.Value + default: + log.Printf("unknown nested ipset data attribute from kernel: %+v %v", nested, nested.Type&nl.NLA_TYPE_MASK) + } + } + case nl.IPSET_ATTR_IP_TO | nl.NLA_F_NESTED: + for nested := range nl.ParseAttributes(attr.Value) { + switch nested.Type { + case nl.IPSET_ATTR_IP: + result.IPTo = nested.Value + default: + log.Printf("unknown nested ipset data attribute from kernel: %+v %v", nested, nested.Type&nl.NLA_TYPE_MASK) + } + } + case nl.IPSET_ATTR_PORT_FROM | nl.NLA_F_NET_BYTEORDER: + result.PortFrom = networkOrder.Uint16(attr.Value) + case nl.IPSET_ATTR_PORT_TO | nl.NLA_F_NET_BYTEORDER: + result.PortTo = networkOrder.Uint16(attr.Value) + case nl.IPSET_ATTR_CADT_LINENO | nl.NLA_F_NET_BYTEORDER: + result.LineNo = attr.Uint32() + case nl.IPSET_ATTR_COMMENT: + result.Comment = nl.BytesToString(attr.Value) + case nl.IPSET_ATTR_MARKMASK: + result.MarkMask = attr.Uint32() + default: + log.Printf("unknown ipset data attribute from kernel: %+v %v", attr, attr.Type&nl.NLA_TYPE_MASK) + } + } +} + +func (result *IPSetResult) parseAttrADT(data []byte) { + for attr := range nl.ParseAttributes(data) { + switch attr.Type { + case nl.IPSET_ATTR_DATA | nl.NLA_F_NESTED: + result.Entries = append(result.Entries, parseIPSetEntry(attr.Value)) + default: + log.Printf("unknown ADT attribute from kernel: %+v %v", attr, attr.Type&nl.NLA_TYPE_MASK) + } + } +} + +func parseIPSetEntry(data []byte) (entry IPSetEntry) { + for attr := range nl.ParseAttributes(data) { + switch attr.Type { + case nl.IPSET_ATTR_TIMEOUT | nl.NLA_F_NET_BYTEORDER: + val := attr.Uint32() + entry.Timeout = &val + case nl.IPSET_ATTR_BYTES | nl.NLA_F_NET_BYTEORDER: + val := attr.Uint64() + entry.Bytes = &val + case nl.IPSET_ATTR_PACKETS | nl.NLA_F_NET_BYTEORDER: + val := attr.Uint64() + entry.Packets = &val + case nl.IPSET_ATTR_ETHER: + entry.MAC = net.HardwareAddr(attr.Value) + case nl.IPSET_ATTR_IP: + entry.IP = net.IP(attr.Value) + case nl.IPSET_ATTR_COMMENT: + entry.Comment = nl.BytesToString(attr.Value) + case nl.IPSET_ATTR_IP | nl.NLA_F_NESTED: + for attr := range nl.ParseAttributes(attr.Value) { + switch attr.Type { + case nl.IPSET_ATTR_IPADDR_IPV4, nl.IPSET_ATTR_IPADDR_IPV6: + entry.IP = net.IP(attr.Value) + default: + log.Printf("unknown nested ADT attribute from kernel: %+v", attr) + } + } + case nl.IPSET_ATTR_IP2 | nl.NLA_F_NESTED: + for attr := range nl.ParseAttributes(attr.Value) { + switch attr.Type { + case nl.IPSET_ATTR_IPADDR_IPV4, nl.IPSET_ATTR_IPADDR_IPV6: + entry.IP2 = net.IP(attr.Value) + default: + log.Printf("unknown nested ADT attribute from kernel: %+v", attr) + } + } + case nl.IPSET_ATTR_CIDR: + entry.CIDR = attr.Value[0] + case nl.IPSET_ATTR_CIDR2: + entry.CIDR2 = attr.Value[0] + case nl.IPSET_ATTR_PORT | nl.NLA_F_NET_BYTEORDER: + val := networkOrder.Uint16(attr.Value) + entry.Port = &val + case nl.IPSET_ATTR_PROTO: + val := attr.Value[0] + entry.Protocol = &val + case nl.IPSET_ATTR_IFACE: + entry.IFace = nl.BytesToString(attr.Value) + case nl.IPSET_ATTR_MARK | nl.NLA_F_NET_BYTEORDER: + val := attr.Uint32() + entry.Mark = &val + default: + log.Printf("unknown ADT attribute from kernel: %+v", attr) + } + } + return +} diff --git a/vendor/github.com/vishvananda/netlink/link.go b/vendor/github.com/vishvananda/netlink/link.go index 886d88d1b..f820cdb67 100644 --- a/vendor/github.com/vishvananda/netlink/link.go +++ b/vendor/github.com/vishvananda/netlink/link.go @@ -22,31 +22,41 @@ type ( // LinkAttrs represents data shared by most link types type LinkAttrs struct { - Index int - MTU int - TxQLen int // Transmit Queue Length - Name string - HardwareAddr net.HardwareAddr - Flags net.Flags - RawFlags uint32 - ParentIndex int // index of the parent link device - MasterIndex int // must be the index of a bridge - Namespace interface{} // nil | NsPid | NsFd - Alias string - Statistics *LinkStatistics - Promisc int - Xdp *LinkXdp - EncapType string - Protinfo *Protinfo - OperState LinkOperState - NetNsID int - NumTxQueues int - NumRxQueues int - GSOMaxSize uint32 - GSOMaxSegs uint32 - Vfs []VfInfo // virtual functions available on link - Group uint32 - Slave LinkSlave + Index int + MTU int + TxQLen int // Transmit Queue Length + Name string + HardwareAddr net.HardwareAddr + Flags net.Flags + RawFlags uint32 + ParentIndex int // index of the parent link device + MasterIndex int // must be the index of a bridge + Namespace interface{} // nil | NsPid | NsFd + Alias string + AltNames []string + Statistics *LinkStatistics + Promisc int + Allmulti int + Multi int + Xdp *LinkXdp + EncapType string + Protinfo *Protinfo + OperState LinkOperState + PhysSwitchID int + NetNsID int + NumTxQueues int + NumRxQueues int + TSOMaxSegs uint32 + TSOMaxSize uint32 + GSOMaxSegs uint32 + GSOMaxSize uint32 + GROMaxSize uint32 + GSOIPv4MaxSize uint32 + GROIPv4MaxSize uint32 + Vfs []VfInfo // virtual functions available on link + Group uint32 + PermHWAddr net.HardwareAddr + Slave LinkSlave } // LinkSlave represents a slave device. @@ -60,11 +70,23 @@ type VfInfo struct { Mac net.HardwareAddr Vlan int Qos int + VlanProto int TxRate int // IFLA_VF_TX_RATE Max TxRate Spoofchk bool LinkState uint32 MaxTxRate uint32 // IFLA_VF_RATE Max TxRate MinTxRate uint32 // IFLA_VF_RATE Min TxRate + RxPackets uint64 + TxPackets uint64 + RxBytes uint64 + TxBytes uint64 + Multicast uint64 + Broadcast uint64 + RxDropped uint64 + TxDropped uint64 + + RssQuery uint32 + Trust uint32 } // LinkOperState represents the values of the IFLA_OPERSTATE link @@ -103,7 +125,8 @@ func (s LinkOperState) String() string { // NewLinkAttrs returns LinkAttrs structure filled with default values func NewLinkAttrs() LinkAttrs { return LinkAttrs{ - TxQLen: -1, + NetNsID: -1, + TxQLen: -1, } } @@ -196,10 +219,11 @@ type LinkStatistics64 struct { } type LinkXdp struct { - Fd int - Attached bool - Flags uint32 - ProgId uint32 + Fd int + Attached bool + AttachMode uint32 + Flags uint32 + ProgId uint32 } // Device links cannot be created via netlink. These links @@ -246,8 +270,11 @@ func (ifb *Ifb) Type() string { type Bridge struct { LinkAttrs MulticastSnooping *bool + AgeingTime *uint32 HelloTime *uint32 VlanFiltering *bool + VlanDefaultPVID *uint16 + GroupFwdMask *uint16 } func (bridge *Bridge) Attrs() *LinkAttrs { @@ -291,6 +318,9 @@ type Macvlan struct { // MACAddrs is only populated for Macvlan SOURCE links MACAddrs []net.HardwareAddr + + BCQueueLen uint32 + UsedBCQueueLen uint32 } func (macvlan *Macvlan) Attrs() *LinkAttrs { @@ -333,11 +363,52 @@ func (tuntap *Tuntap) Type() string { return "tuntap" } +type NetkitMode uint32 + +const ( + NETKIT_MODE_L2 NetkitMode = iota + NETKIT_MODE_L3 +) + +type NetkitPolicy int + +const ( + NETKIT_POLICY_FORWARD NetkitPolicy = 0 + NETKIT_POLICY_BLACKHOLE NetkitPolicy = 2 +) + +func (n *Netkit) IsPrimary() bool { + return n.isPrimary +} + +// SetPeerAttrs will not take effect if trying to modify an existing netkit device +func (n *Netkit) SetPeerAttrs(Attrs *LinkAttrs) { + n.peerLinkAttrs = *Attrs +} + +type Netkit struct { + LinkAttrs + Mode NetkitMode + Policy NetkitPolicy + PeerPolicy NetkitPolicy + isPrimary bool + peerLinkAttrs LinkAttrs +} + +func (n *Netkit) Attrs() *LinkAttrs { + return &n.LinkAttrs +} + +func (n *Netkit) Type() string { + return "netkit" +} + // Veth devices must specify PeerName on create type Veth struct { LinkAttrs PeerName string // veth on create only PeerHardwareAddr net.HardwareAddr + PeerNamespace interface{} } func (veth *Veth) Attrs() *LinkAttrs { @@ -348,6 +419,19 @@ func (veth *Veth) Type() string { return "veth" } +// Wireguard represent links of type "wireguard", see https://www.wireguard.com/ +type Wireguard struct { + LinkAttrs +} + +func (wg *Wireguard) Attrs() *LinkAttrs { + return &wg.LinkAttrs +} + +func (wg *Wireguard) Type() string { + return "wireguard" +} + // GenericLink links represent types that are not currently understood // by this netlink library. type GenericLink struct { @@ -428,6 +512,19 @@ func (ipvlan *IPVlan) Type() string { return "ipvlan" } +// IPVtap - IPVtap is a virtual interfaces based on ipvlan +type IPVtap struct { + IPVlan +} + +func (ipvtap *IPVtap) Attrs() *LinkAttrs { + return &ipvtap.LinkAttrs +} + +func (ipvtap IPVtap) Type() string { + return "ipvtap" +} + // VlanProtocol type type VlanProtocol int @@ -527,6 +624,27 @@ const ( BOND_ARP_VALIDATE_ALL ) +var bondArpValidateToString = map[BondArpValidate]string{ + BOND_ARP_VALIDATE_NONE: "none", + BOND_ARP_VALIDATE_ACTIVE: "active", + BOND_ARP_VALIDATE_BACKUP: "backup", + BOND_ARP_VALIDATE_ALL: "none", +} +var StringToBondArpValidateMap = map[string]BondArpValidate{ + "none": BOND_ARP_VALIDATE_NONE, + "active": BOND_ARP_VALIDATE_ACTIVE, + "backup": BOND_ARP_VALIDATE_BACKUP, + "all": BOND_ARP_VALIDATE_ALL, +} + +func (b BondArpValidate) String() string { + s, ok := bondArpValidateToString[b] + if !ok { + return fmt.Sprintf("BondArpValidate(%d)", b) + } + return s +} + // BondPrimaryReselect type type BondPrimaryReselect int @@ -537,6 +655,25 @@ const ( BOND_PRIMARY_RESELECT_FAILURE ) +var bondPrimaryReselectToString = map[BondPrimaryReselect]string{ + BOND_PRIMARY_RESELECT_ALWAYS: "always", + BOND_PRIMARY_RESELECT_BETTER: "better", + BOND_PRIMARY_RESELECT_FAILURE: "failure", +} +var StringToBondPrimaryReselectMap = map[string]BondPrimaryReselect{ + "always": BOND_PRIMARY_RESELECT_ALWAYS, + "better": BOND_PRIMARY_RESELECT_BETTER, + "failure": BOND_PRIMARY_RESELECT_FAILURE, +} + +func (b BondPrimaryReselect) String() string { + s, ok := bondPrimaryReselectToString[b] + if !ok { + return fmt.Sprintf("BondPrimaryReselect(%d)", b) + } + return s +} + // BondArpAllTargets type type BondArpAllTargets int @@ -546,6 +683,23 @@ const ( BOND_ARP_ALL_TARGETS_ALL ) +var bondArpAllTargetsToString = map[BondArpAllTargets]string{ + BOND_ARP_ALL_TARGETS_ANY: "any", + BOND_ARP_ALL_TARGETS_ALL: "all", +} +var StringToBondArpAllTargetsMap = map[string]BondArpAllTargets{ + "any": BOND_ARP_ALL_TARGETS_ANY, + "all": BOND_ARP_ALL_TARGETS_ALL, +} + +func (b BondArpAllTargets) String() string { + s, ok := bondArpAllTargetsToString[b] + if !ok { + return fmt.Sprintf("BondArpAllTargets(%d)", b) + } + return s +} + // BondFailOverMac type type BondFailOverMac int @@ -556,6 +710,25 @@ const ( BOND_FAIL_OVER_MAC_FOLLOW ) +var bondFailOverMacToString = map[BondFailOverMac]string{ + BOND_FAIL_OVER_MAC_NONE: "none", + BOND_FAIL_OVER_MAC_ACTIVE: "active", + BOND_FAIL_OVER_MAC_FOLLOW: "follow", +} +var StringToBondFailOverMacMap = map[string]BondFailOverMac{ + "none": BOND_FAIL_OVER_MAC_NONE, + "active": BOND_FAIL_OVER_MAC_ACTIVE, + "follow": BOND_FAIL_OVER_MAC_FOLLOW, +} + +func (b BondFailOverMac) String() string { + s, ok := bondFailOverMacToString[b] + if !ok { + return fmt.Sprintf("BondFailOverMac(%d)", b) + } + return s +} + // BondXmitHashPolicy type type BondXmitHashPolicy int @@ -583,6 +756,7 @@ const ( BOND_XMIT_HASH_POLICY_LAYER2_3 BOND_XMIT_HASH_POLICY_ENCAP2_3 BOND_XMIT_HASH_POLICY_ENCAP3_4 + BOND_XMIT_HASH_POLICY_VLAN_SRCMAC BOND_XMIT_HASH_POLICY_UNKNOWN ) @@ -592,6 +766,7 @@ var bondXmitHashPolicyToString = map[BondXmitHashPolicy]string{ BOND_XMIT_HASH_POLICY_LAYER2_3: "layer2+3", BOND_XMIT_HASH_POLICY_ENCAP2_3: "encap2+3", BOND_XMIT_HASH_POLICY_ENCAP3_4: "encap3+4", + BOND_XMIT_HASH_POLICY_VLAN_SRCMAC: "vlan+srcmac", } var StringToBondXmitHashPolicyMap = map[string]BondXmitHashPolicy{ "layer2": BOND_XMIT_HASH_POLICY_LAYER2, @@ -599,6 +774,7 @@ var StringToBondXmitHashPolicyMap = map[string]BondXmitHashPolicy{ "layer2+3": BOND_XMIT_HASH_POLICY_LAYER2_3, "encap2+3": BOND_XMIT_HASH_POLICY_ENCAP2_3, "encap3+4": BOND_XMIT_HASH_POLICY_ENCAP3_4, + "vlan+srcmac": BOND_XMIT_HASH_POLICY_VLAN_SRCMAC, } // BondLacpRate type @@ -647,6 +823,25 @@ const ( BOND_AD_SELECT_COUNT ) +var bondAdSelectToString = map[BondAdSelect]string{ + BOND_AD_SELECT_STABLE: "stable", + BOND_AD_SELECT_BANDWIDTH: "bandwidth", + BOND_AD_SELECT_COUNT: "count", +} +var StringToBondAdSelectMap = map[string]BondAdSelect{ + "stable": BOND_AD_SELECT_STABLE, + "bandwidth": BOND_AD_SELECT_BANDWIDTH, + "count": BOND_AD_SELECT_COUNT, +} + +func (b BondAdSelect) String() string { + s, ok := bondAdSelectToString[b] + if !ok { + return fmt.Sprintf("BondAdSelect(%d)", b) + } + return s +} + // BondAdInfo represents ad info for bond type BondAdInfo struct { AggregatorId int @@ -678,7 +873,7 @@ type Bond struct { AllSlavesActive int MinLinks int LpInterval int - PackersPerSlave int + PacketsPerSlave int LacpRate BondLacpRate AdSelect BondAdSelect // looking at iproute tool AdInfo can only be retrived. It can't be set. @@ -711,7 +906,7 @@ func NewLinkBond(atr LinkAttrs) *Bond { AllSlavesActive: -1, MinLinks: -1, LpInterval: -1, - PackersPerSlave: -1, + PacketsPerSlave: -1, LacpRate: -1, AdSelect: -1, AdActorSysPrio: -1, @@ -761,8 +956,10 @@ func (bond *Bond) Type() string { type BondSlaveState uint8 const ( - BondStateActive = iota // Link is active. - BondStateBackup // Link is backup. + //BondStateActive Link is active. + BondStateActive BondSlaveState = iota + //BondStateBackup Link is backup. + BondStateBackup ) func (s BondSlaveState) String() string { @@ -776,15 +973,19 @@ func (s BondSlaveState) String() string { } } -// BondSlaveState represents the values of the IFLA_BOND_SLAVE_MII_STATUS bond slave +// BondSlaveMiiStatus represents the values of the IFLA_BOND_SLAVE_MII_STATUS bond slave // attribute, which contains the status of MII link monitoring type BondSlaveMiiStatus uint8 const ( - BondLinkUp = iota // link is up and running. - BondLinkFail // link has just gone down. - BondLinkDown // link has been down for too long time. - BondLinkBack // link is going back. + //BondLinkUp link is up and running. + BondLinkUp BondSlaveMiiStatus = iota + //BondLinkFail link has just gone down. + BondLinkFail + //BondLinkDown link has been down for too long time. + BondLinkDown + //BondLinkBack link is going back. + BondLinkBack ) func (s BondSlaveMiiStatus) String() string { @@ -817,6 +1018,49 @@ func (b *BondSlave) SlaveType() string { return "bond" } +type VrfSlave struct { + Table uint32 +} + +func (v *VrfSlave) SlaveType() string { + return "vrf" +} + +// Geneve devices must specify RemoteIP and ID (VNI) on create +// https://github.com/torvalds/linux/blob/47ec5303d73ea344e84f46660fff693c57641386/drivers/net/geneve.c#L1209-L1223 +type Geneve struct { + LinkAttrs + ID uint32 // vni + Remote net.IP + Ttl uint8 + Tos uint8 + Dport uint16 + UdpCsum uint8 + UdpZeroCsum6Tx uint8 + UdpZeroCsum6Rx uint8 + Link uint32 + FlowBased bool + InnerProtoInherit bool + Df GeneveDf +} + +func (geneve *Geneve) Attrs() *LinkAttrs { + return &geneve.LinkAttrs +} + +func (geneve *Geneve) Type() string { + return "geneve" +} + +type GeneveDf uint8 + +const ( + GENEVE_DF_UNSET GeneveDf = iota + GENEVE_DF_SET + GENEVE_DF_INHERIT + GENEVE_DF_MAX +) + // Gretap devices must specify LocalIP and RemoteIP on create type Gretap struct { LinkAttrs @@ -861,6 +1105,7 @@ type Iptun struct { EncapType uint16 EncapFlags uint16 FlowBased bool + Proto uint8 } func (iptun *Iptun) Attrs() *LinkAttrs { @@ -878,10 +1123,15 @@ type Ip6tnl struct { Remote net.IP Ttl uint8 Tos uint8 - EncapLimit uint8 Flags uint32 Proto uint8 FlowInfo uint32 + EncapLimit uint8 + EncapType uint16 + EncapFlags uint16 + EncapSport uint16 + EncapDport uint16 + FlowBased bool } func (ip6tnl *Ip6tnl) Attrs() *LinkAttrs { @@ -892,14 +1142,47 @@ func (ip6tnl *Ip6tnl) Type() string { return "ip6tnl" } +// from https://elixir.bootlin.com/linux/v5.15.4/source/include/uapi/linux/if_tunnel.h#L84 +type TunnelEncapType uint16 + +const ( + None TunnelEncapType = iota + FOU + GUE +) + +// from https://elixir.bootlin.com/linux/v5.15.4/source/include/uapi/linux/if_tunnel.h#L91 +type TunnelEncapFlag uint16 + +const ( + CSum TunnelEncapFlag = 1 << 0 + CSum6 = 1 << 1 + RemCSum = 1 << 2 +) + +// from https://elixir.bootlin.com/linux/latest/source/include/uapi/linux/ip6_tunnel.h#L12 +type IP6TunnelFlag uint16 + +const ( + IP6_TNL_F_IGN_ENCAP_LIMIT IP6TunnelFlag = 1 // don't add encapsulation limit if one isn't present in inner packet + IP6_TNL_F_USE_ORIG_TCLASS = 2 // copy the traffic class field from the inner packet + IP6_TNL_F_USE_ORIG_FLOWLABEL = 4 // copy the flowlabel from the inner packet + IP6_TNL_F_MIP6_DEV = 8 // being used for Mobile IPv6 + IP6_TNL_F_RCV_DSCP_COPY = 10 // copy DSCP from the outer packet + IP6_TNL_F_USE_ORIG_FWMARK = 20 // copy fwmark from inner packet + IP6_TNL_F_ALLOW_LOCAL_REMOTE = 40 // allow remote endpoint on the local node +) + type Sittun struct { LinkAttrs Link uint32 - Local net.IP - Remote net.IP Ttl uint8 Tos uint8 PMtuDisc uint8 + Proto uint8 + Local net.IP + Remote net.IP + EncapLimit uint8 EncapType uint16 EncapFlags uint16 EncapSport uint16 @@ -950,6 +1233,7 @@ type Gretun struct { EncapFlags uint16 EncapSport uint16 EncapDport uint16 + FlowBased bool } func (gretun *Gretun) Attrs() *LinkAttrs { @@ -993,6 +1277,7 @@ func (gtp *GTP) Type() string { } // Virtual XFRM Interfaces +// // Named "xfrmi" to prevent confusion with XFRM objects type Xfrmi struct { LinkAttrs @@ -1034,6 +1319,58 @@ var StringToIPoIBMode = map[string]IPoIBMode{ "connected": IPOIB_MODE_CONNECTED, } +const ( + CAN_STATE_ERROR_ACTIVE = iota + CAN_STATE_ERROR_WARNING + CAN_STATE_ERROR_PASSIVE + CAN_STATE_BUS_OFF + CAN_STATE_STOPPED + CAN_STATE_SLEEPING +) + +type Can struct { + LinkAttrs + + BitRate uint32 + SamplePoint uint32 + TimeQuanta uint32 + PropagationSegment uint32 + PhaseSegment1 uint32 + PhaseSegment2 uint32 + SyncJumpWidth uint32 + BitRatePreScaler uint32 + + Name string + TimeSegment1Min uint32 + TimeSegment1Max uint32 + TimeSegment2Min uint32 + TimeSegment2Max uint32 + SyncJumpWidthMax uint32 + BitRatePreScalerMin uint32 + BitRatePreScalerMax uint32 + BitRatePreScalerInc uint32 + + ClockFrequency uint32 + + State uint32 + + Mask uint32 + Flags uint32 + + TxError uint16 + RxError uint16 + + RestartMs uint32 +} + +func (can *Can) Attrs() *LinkAttrs { + return &can.LinkAttrs +} + +func (can *Can) Type() string { + return "can" +} + type IPoIB struct { LinkAttrs Pkey uint16 @@ -1049,11 +1386,27 @@ func (ipoib *IPoIB) Type() string { return "ipoib" } +type BareUDP struct { + LinkAttrs + Port uint16 + EtherType uint16 + SrcPortMin uint16 + MultiProto bool +} + +func (bareudp *BareUDP) Attrs() *LinkAttrs { + return &bareudp.LinkAttrs +} + +func (bareudp *BareUDP) Type() string { + return "bareudp" +} + // iproute2 supported devices; // vlan | veth | vcan | dummy | ifb | macvlan | macvtap | // bridge | bond | ipoib | ip6tnl | ipip | sit | vxlan | // gre | gretap | ip6gre | ip6gretap | vti | vti6 | nlmon | -// bond_slave | ipvlan | xfrm +// bond_slave | ipvlan | xfrm | bareudp // LinkNotFoundError wraps the various not found errors when // getting/reading links. This is intended for better error diff --git a/vendor/github.com/vishvananda/netlink/link_linux.go b/vendor/github.com/vishvananda/netlink/link_linux.go index ec915a0b9..d713612a9 100644 --- a/vendor/github.com/vishvananda/netlink/link_linux.go +++ b/vendor/github.com/vishvananda/netlink/link_linux.go @@ -34,14 +34,27 @@ const ( TUNTAP_MULTI_QUEUE_DEFAULTS TuntapFlag = TUNTAP_MULTI_QUEUE | TUNTAP_NO_PI ) +var StringToTuntapModeMap = map[string]TuntapMode{ + "tun": TUNTAP_MODE_TUN, + "tap": TUNTAP_MODE_TAP, +} + +func (ttm TuntapMode) String() string { + switch ttm { + case TUNTAP_MODE_TUN: + return "tun" + case TUNTAP_MODE_TAP: + return "tap" + } + return "unknown" +} + const ( VF_LINK_STATE_AUTO uint32 = 0 VF_LINK_STATE_ENABLE uint32 = 1 VF_LINK_STATE_DISABLE uint32 = 2 ) -var lookupByDump = false - var macvlanModes = [...]uint32{ 0, nl.MACVLAN_MODE_PRIVATE, @@ -138,7 +151,6 @@ func (h *Handle) LinkSetAllmulticastOn(link Link) error { msg := nl.NewIfInfomsg(unix.AF_UNSPEC) msg.Change = unix.IFF_ALLMULTI msg.Flags = unix.IFF_ALLMULTI - msg.Index = int32(base.Index) req.AddData(msg) @@ -168,6 +180,51 @@ func (h *Handle) LinkSetAllmulticastOff(link Link) error { return err } +// LinkSetMulticastOn enables the reception of multicast packets for the link device. +// Equivalent to: `ip link set $link multicast on` +func LinkSetMulticastOn(link Link) error { + return pkgHandle.LinkSetMulticastOn(link) +} + +// LinkSetMulticastOn enables the reception of multicast packets for the link device. +// Equivalent to: `ip link set $link multicast on` +func (h *Handle) LinkSetMulticastOn(link Link) error { + base := link.Attrs() + h.ensureIndex(base) + req := h.newNetlinkRequest(unix.RTM_NEWLINK, unix.NLM_F_ACK) + + msg := nl.NewIfInfomsg(unix.AF_UNSPEC) + msg.Change = unix.IFF_MULTICAST + msg.Flags = unix.IFF_MULTICAST + msg.Index = int32(base.Index) + req.AddData(msg) + + _, err := req.Execute(unix.NETLINK_ROUTE, 0) + return err +} + +// LinkSetAllmulticastOff disables the reception of multicast packets for the link device. +// Equivalent to: `ip link set $link multicast off` +func LinkSetMulticastOff(link Link) error { + return pkgHandle.LinkSetMulticastOff(link) +} + +// LinkSetAllmulticastOff disables the reception of multicast packets for the link device. +// Equivalent to: `ip link set $link multicast off` +func (h *Handle) LinkSetMulticastOff(link Link) error { + base := link.Attrs() + h.ensureIndex(base) + req := h.newNetlinkRequest(unix.RTM_NEWLINK, unix.NLM_F_ACK) + + msg := nl.NewIfInfomsg(unix.AF_UNSPEC) + msg.Change = unix.IFF_MULTICAST + msg.Index = int32(base.Index) + req.AddData(msg) + + _, err := req.Execute(unix.NETLINK_ROUTE, 0) + return err +} + func MacvlanMACAddrAdd(link Link, addr net.HardwareAddr) error { return pkgHandle.MacvlanMACAddrAdd(link, addr) } @@ -237,6 +294,37 @@ func (h *Handle) macvlanMACAddrChange(link Link, addrs []net.HardwareAddr, mode return err } +// LinkSetMacvlanMode sets the mode of a macvlan or macvtap link device. +// Note that passthrough mode cannot be set to and from and will fail. +// Equivalent to: `ip link set $link type (macvlan|macvtap) mode $mode +func LinkSetMacvlanMode(link Link, mode MacvlanMode) error { + return pkgHandle.LinkSetMacvlanMode(link, mode) +} + +// LinkSetMacvlanMode sets the mode of the macvlan or macvtap link device. +// Note that passthrough mode cannot be set to and from and will fail. +// Equivalent to: `ip link set $link type (macvlan|macvtap) mode $mode +func (h *Handle) LinkSetMacvlanMode(link Link, mode MacvlanMode) error { + base := link.Attrs() + h.ensureIndex(base) + req := h.newNetlinkRequest(unix.RTM_NEWLINK, unix.NLM_F_ACK) + + msg := nl.NewIfInfomsg(unix.AF_UNSPEC) + msg.Index = int32(base.Index) + req.AddData(msg) + + linkInfo := nl.NewRtAttr(unix.IFLA_LINKINFO, nil) + linkInfo.AddRtAttr(nl.IFLA_INFO_KIND, nl.NonZeroTerminated(link.Type())) + + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) + data.AddRtAttr(nl.IFLA_MACVLAN_MODE, nl.Uint32Attr(macvlanModes[mode])) + + req.AddData(linkInfo) + + _, err := req.Execute(unix.NETLINK_ROUTE, 0) + return err +} + func BridgeSetMcastSnoop(link Link, on bool) error { return pkgHandle.BridgeSetMcastSnoop(link, on) } @@ -247,6 +335,26 @@ func (h *Handle) BridgeSetMcastSnoop(link Link, on bool) error { return h.linkModify(bridge, unix.NLM_F_ACK) } +func BridgeSetVlanFiltering(link Link, on bool) error { + return pkgHandle.BridgeSetVlanFiltering(link, on) +} + +func (h *Handle) BridgeSetVlanFiltering(link Link, on bool) error { + bridge := link.(*Bridge) + bridge.VlanFiltering = &on + return h.linkModify(bridge, unix.NLM_F_ACK) +} + +func BridgeSetVlanDefaultPVID(link Link, pvid uint16) error { + return pkgHandle.BridgeSetVlanDefaultPVID(link, pvid) +} + +func (h *Handle) BridgeSetVlanDefaultPVID(link Link, pvid uint16) error { + bridge := link.(*Bridge) + bridge.VlanDefaultPVID = &pvid + return h.linkModify(bridge, unix.NLM_F_ACK) +} + func SetPromiscOn(link Link) error { return pkgHandle.SetPromiscOn(link) } @@ -389,6 +497,58 @@ func (h *Handle) LinkSetAlias(link Link, name string) error { return err } +// LinkAddAltName adds a new alternative name for the link device. +// Equivalent to: `ip link property add $link altname $name` +func LinkAddAltName(link Link, name string) error { + return pkgHandle.LinkAddAltName(link, name) +} + +// LinkAddAltName adds a new alternative name for the link device. +// Equivalent to: `ip link property add $link altname $name` +func (h *Handle) LinkAddAltName(link Link, name string) error { + base := link.Attrs() + h.ensureIndex(base) + req := h.newNetlinkRequest(unix.RTM_NEWLINKPROP, unix.NLM_F_ACK) + + msg := nl.NewIfInfomsg(unix.AF_UNSPEC) + msg.Index = int32(base.Index) + req.AddData(msg) + + data := nl.NewRtAttr(unix.IFLA_PROP_LIST|unix.NLA_F_NESTED, nil) + data.AddRtAttr(unix.IFLA_ALT_IFNAME, []byte(name)) + + req.AddData(data) + + _, err := req.Execute(unix.NETLINK_ROUTE, 0) + return err +} + +// LinkDelAltName delete an alternative name for the link device. +// Equivalent to: `ip link property del $link altname $name` +func LinkDelAltName(link Link, name string) error { + return pkgHandle.LinkDelAltName(link, name) +} + +// LinkDelAltName delete an alternative name for the link device. +// Equivalent to: `ip link property del $link altname $name` +func (h *Handle) LinkDelAltName(link Link, name string) error { + base := link.Attrs() + h.ensureIndex(base) + req := h.newNetlinkRequest(unix.RTM_DELLINKPROP, unix.NLM_F_ACK) + + msg := nl.NewIfInfomsg(unix.AF_UNSPEC) + msg.Index = int32(base.Index) + req.AddData(msg) + + data := nl.NewRtAttr(unix.IFLA_PROP_LIST|unix.NLA_F_NESTED, nil) + data.AddRtAttr(unix.IFLA_ALT_IFNAME, []byte(name)) + + req.AddData(data) + + _, err := req.Execute(unix.NETLINK_ROUTE, 0) + return err +} + // LinkSetHardwareAddr sets the hardware address of the link device. // Equivalent to: `ip link set $link address $hwaddr` func LinkSetHardwareAddr(link Link, hwaddr net.HardwareAddr) error { @@ -491,13 +651,50 @@ func (h *Handle) LinkSetVfVlanQos(link Link, vf, vlan, qos int) error { req.AddData(msg) data := nl.NewRtAttr(unix.IFLA_VFINFO_LIST, nil) - info := nl.NewRtAttrChild(data, nl.IFLA_VF_INFO, nil) + info := data.AddRtAttr(nl.IFLA_VF_INFO, nil) vfmsg := nl.VfVlan{ Vf: uint32(vf), Vlan: uint32(vlan), Qos: uint32(qos), } - nl.NewRtAttrChild(info, nl.IFLA_VF_VLAN, vfmsg.Serialize()) + info.AddRtAttr(nl.IFLA_VF_VLAN, vfmsg.Serialize()) + req.AddData(data) + + _, err := req.Execute(unix.NETLINK_ROUTE, 0) + return err +} + +// LinkSetVfVlanQosProto sets the vlan, qos and protocol of a vf for the link. +// Equivalent to: `ip link set $link vf $vf vlan $vlan qos $qos proto $proto` +func LinkSetVfVlanQosProto(link Link, vf, vlan, qos, proto int) error { + return pkgHandle.LinkSetVfVlanQosProto(link, vf, vlan, qos, proto) +} + +// LinkSetVfVlanQosProto sets the vlan, qos and protocol of a vf for the link. +// Equivalent to: `ip link set $link vf $vf vlan $vlan qos $qos proto $proto` +func (h *Handle) LinkSetVfVlanQosProto(link Link, vf, vlan, qos, proto int) error { + base := link.Attrs() + h.ensureIndex(base) + req := h.newNetlinkRequest(unix.RTM_SETLINK, unix.NLM_F_ACK) + + msg := nl.NewIfInfomsg(unix.AF_UNSPEC) + msg.Index = int32(base.Index) + req.AddData(msg) + + data := nl.NewRtAttr(unix.IFLA_VFINFO_LIST, nil) + vfInfo := data.AddRtAttr(nl.IFLA_VF_INFO, nil) + vfVlanList := vfInfo.AddRtAttr(nl.IFLA_VF_VLAN_LIST, nil) + + vfmsg := nl.VfVlanInfo{ + VfVlan: nl.VfVlan{ + Vf: uint32(vf), + Vlan: uint32(vlan), + Qos: uint32(qos), + }, + VlanProto: (uint16(proto)>>8)&0xFF | (uint16(proto)&0xFF)<<8, + } + + vfVlanList.AddRtAttr(nl.IFLA_VF_VLAN_INFO, vfmsg.Serialize()) req.AddData(data) _, err := req.Execute(unix.NETLINK_ROUTE, 0) @@ -848,6 +1045,141 @@ func LinkSetXdpFdWithFlags(link Link, fd, flags int) error { return err } +// LinkSetGSOMaxSegs sets the GSO maximum segment count of the link device. +// Equivalent to: `ip link set $link gso_max_segs $maxSegs` +func LinkSetGSOMaxSegs(link Link, maxSegs int) error { + return pkgHandle.LinkSetGSOMaxSegs(link, maxSegs) +} + +// LinkSetGSOMaxSegs sets the GSO maximum segment count of the link device. +// Equivalent to: `ip link set $link gso_max_segs $maxSegs` +func (h *Handle) LinkSetGSOMaxSegs(link Link, maxSize int) error { + base := link.Attrs() + h.ensureIndex(base) + req := h.newNetlinkRequest(unix.RTM_SETLINK, unix.NLM_F_ACK) + + msg := nl.NewIfInfomsg(unix.AF_UNSPEC) + msg.Index = int32(base.Index) + req.AddData(msg) + + b := make([]byte, 4) + native.PutUint32(b, uint32(maxSize)) + + data := nl.NewRtAttr(unix.IFLA_GSO_MAX_SEGS, b) + req.AddData(data) + + _, err := req.Execute(unix.NETLINK_ROUTE, 0) + return err +} + +// LinkSetGSOMaxSize sets the IPv6 GSO maximum size of the link device. +// Equivalent to: `ip link set $link gso_max_size $maxSize` +func LinkSetGSOMaxSize(link Link, maxSize int) error { + return pkgHandle.LinkSetGSOMaxSize(link, maxSize) +} + +// LinkSetGSOMaxSize sets the IPv6 GSO maximum size of the link device. +// Equivalent to: `ip link set $link gso_max_size $maxSize` +func (h *Handle) LinkSetGSOMaxSize(link Link, maxSize int) error { + base := link.Attrs() + h.ensureIndex(base) + req := h.newNetlinkRequest(unix.RTM_SETLINK, unix.NLM_F_ACK) + + msg := nl.NewIfInfomsg(unix.AF_UNSPEC) + msg.Index = int32(base.Index) + req.AddData(msg) + + b := make([]byte, 4) + native.PutUint32(b, uint32(maxSize)) + + data := nl.NewRtAttr(unix.IFLA_GSO_MAX_SIZE, b) + req.AddData(data) + + _, err := req.Execute(unix.NETLINK_ROUTE, 0) + return err +} + +// LinkSetGROMaxSize sets the IPv6 GRO maximum size of the link device. +// Equivalent to: `ip link set $link gro_max_size $maxSize` +func LinkSetGROMaxSize(link Link, maxSize int) error { + return pkgHandle.LinkSetGROMaxSize(link, maxSize) +} + +// LinkSetGROMaxSize sets the IPv6 GRO maximum size of the link device. +// Equivalent to: `ip link set $link gro_max_size $maxSize` +func (h *Handle) LinkSetGROMaxSize(link Link, maxSize int) error { + base := link.Attrs() + h.ensureIndex(base) + req := h.newNetlinkRequest(unix.RTM_SETLINK, unix.NLM_F_ACK) + + msg := nl.NewIfInfomsg(unix.AF_UNSPEC) + msg.Index = int32(base.Index) + req.AddData(msg) + + b := make([]byte, 4) + native.PutUint32(b, uint32(maxSize)) + + data := nl.NewRtAttr(unix.IFLA_GRO_MAX_SIZE, b) + req.AddData(data) + + _, err := req.Execute(unix.NETLINK_ROUTE, 0) + return err +} + +// LinkSetGSOIPv4MaxSize sets the IPv4 GSO maximum size of the link device. +// Equivalent to: `ip link set $link gso_ipv4_max_size $maxSize` +func LinkSetGSOIPv4MaxSize(link Link, maxSize int) error { + return pkgHandle.LinkSetGSOIPv4MaxSize(link, maxSize) +} + +// LinkSetGSOIPv4MaxSize sets the IPv4 GSO maximum size of the link device. +// Equivalent to: `ip link set $link gso_ipv4_max_size $maxSize` +func (h *Handle) LinkSetGSOIPv4MaxSize(link Link, maxSize int) error { + base := link.Attrs() + h.ensureIndex(base) + req := h.newNetlinkRequest(unix.RTM_SETLINK, unix.NLM_F_ACK) + + msg := nl.NewIfInfomsg(unix.AF_UNSPEC) + msg.Index = int32(base.Index) + req.AddData(msg) + + b := make([]byte, 4) + native.PutUint32(b, uint32(maxSize)) + + data := nl.NewRtAttr(unix.IFLA_GSO_IPV4_MAX_SIZE, b) + req.AddData(data) + + _, err := req.Execute(unix.NETLINK_ROUTE, 0) + return err +} + +// LinkSetGROIPv4MaxSize sets the IPv4 GRO maximum size of the link device. +// Equivalent to: `ip link set $link gro_ipv4_max_size $maxSize` +func LinkSetGROIPv4MaxSize(link Link, maxSize int) error { + return pkgHandle.LinkSetGROIPv4MaxSize(link, maxSize) +} + +// LinkSetGROIPv4MaxSize sets the IPv4 GRO maximum size of the link device. +// Equivalent to: `ip link set $link gro_ipv4_max_size $maxSize` +func (h *Handle) LinkSetGROIPv4MaxSize(link Link, maxSize int) error { + base := link.Attrs() + h.ensureIndex(base) + req := h.newNetlinkRequest(unix.RTM_SETLINK, unix.NLM_F_ACK) + + msg := nl.NewIfInfomsg(unix.AF_UNSPEC) + msg.Index = int32(base.Index) + req.AddData(msg) + + b := make([]byte, 4) + native.PutUint32(b, uint32(maxSize)) + + data := nl.NewRtAttr(unix.IFLA_GRO_IPV4_MAX_SIZE, b) + req.AddData(data) + + _, err := req.Execute(unix.NETLINK_ROUTE, 0) + return err +} + func boolAttr(val bool) []byte { var v uint8 if val { @@ -1005,8 +1337,8 @@ func addBondAttrs(bond *Bond, linkInfo *nl.RtAttr) { if bond.LpInterval >= 0 { data.AddRtAttr(nl.IFLA_BOND_LP_INTERVAL, nl.Uint32Attr(uint32(bond.LpInterval))) } - if bond.PackersPerSlave >= 0 { - data.AddRtAttr(nl.IFLA_BOND_PACKETS_PER_SLAVE, nl.Uint32Attr(uint32(bond.PackersPerSlave))) + if bond.PacketsPerSlave >= 0 { + data.AddRtAttr(nl.IFLA_BOND_PACKETS_PER_SLAVE, nl.Uint32Attr(uint32(bond.PacketsPerSlave))) } if bond.LacpRate >= 0 { data.AddRtAttr(nl.IFLA_BOND_AD_LACP_RATE, nl.Uint8Attr(uint8(bond.LacpRate))) @@ -1048,6 +1380,14 @@ func (h *Handle) LinkAdd(link Link) error { return h.linkModify(link, unix.NLM_F_CREATE|unix.NLM_F_EXCL|unix.NLM_F_ACK) } +func LinkModify(link Link) error { + return pkgHandle.LinkModify(link) +} + +func (h *Handle) LinkModify(link Link) error { + return h.linkModify(link, unix.NLM_F_REQUEST|unix.NLM_F_ACK) +} + func (h *Handle) linkModify(link Link, flags int) error { // TODO: support extra data for macvlan base := link.Attrs() @@ -1060,8 +1400,6 @@ func (h *Handle) linkModify(link Link, flags int) error { } if isTuntap { - // TODO: support user - // TODO: support group if tuntap.Mode < unix.IFF_TUN || tuntap.Mode > unix.IFF_TAP { return fmt.Errorf("Tuntap.Mode %v unknown", tuntap.Mode) } @@ -1089,21 +1427,64 @@ func (h *Handle) linkModify(link Link, flags int) error { } req.Flags |= uint16(tuntap.Mode) - + const TUN = "/dev/net/tun" for i := 0; i < queues; i++ { localReq := req - file, err := os.OpenFile("/dev/net/tun", os.O_RDWR, 0) + fd, err := unix.Open(TUN, os.O_RDWR|syscall.O_CLOEXEC, 0) if err != nil { cleanupFds(fds) return err } - fds = append(fds, file) - _, _, errno := unix.Syscall(unix.SYS_IOCTL, file.Fd(), uintptr(unix.TUNSETIFF), uintptr(unsafe.Pointer(&localReq))) + _, _, errno := unix.Syscall(unix.SYS_IOCTL, uintptr(fd), uintptr(unix.TUNSETIFF), uintptr(unsafe.Pointer(&localReq))) if errno != 0 { + // close the new fd + unix.Close(fd) + // and the already opened ones cleanupFds(fds) return fmt.Errorf("Tuntap IOCTL TUNSETIFF failed [%d], errno %v", i, errno) } + + _, _, errno = syscall.Syscall(syscall.SYS_IOCTL, uintptr(fd), syscall.TUNSETOWNER, uintptr(tuntap.Owner)) + if errno != 0 { + cleanupFds(fds) + return fmt.Errorf("Tuntap IOCTL TUNSETOWNER failed [%d], errno %v", i, errno) + } + + _, _, errno = syscall.Syscall(syscall.SYS_IOCTL, uintptr(fd), syscall.TUNSETGROUP, uintptr(tuntap.Group)) + if errno != 0 { + cleanupFds(fds) + return fmt.Errorf("Tuntap IOCTL TUNSETGROUP failed [%d], errno %v", i, errno) + } + + // Set the tun device to non-blocking before use. The below comment + // taken from: + // + // https://github.com/mistsys/tuntap/commit/161418c25003bbee77d085a34af64d189df62bea + // + // Note there is a complication because in go, if a device node is + // opened, go sets it to use nonblocking I/O. However a /dev/net/tun + // doesn't work with epoll until after the TUNSETIFF ioctl has been + // done. So we open the unix fd directly, do the ioctl, then put the + // fd in nonblocking mode, an then finally wrap it in a os.File, + // which will see the nonblocking mode and add the fd to the + // pollable set, so later on when we Read() from it blocked the + // calling thread in the kernel. + // + // See + // https://github.com/golang/go/issues/30426 + // which got exposed in go 1.13 by the fix to + // https://github.com/golang/go/issues/30624 + err = unix.SetNonblock(fd, true) + if err != nil { + cleanupFds(fds) + return fmt.Errorf("Tuntap set to non-blocking failed [%d], err %v", i, err) + } + + // create the file from the file descriptor and store it + file := os.NewFile(uintptr(fd), TUN) + fds = append(fds, file) + // 1) we only care for the name of the first tap in the multi queue set // 2) if the original name was empty, the localReq has now the actual name // @@ -1114,11 +1495,29 @@ func (h *Handle) linkModify(link Link, flags int) error { if i == 0 { link.Attrs().Name = strings.Trim(string(localReq.Name[:]), "\x00") } + + } + + control := func(file *os.File, f func(fd uintptr)) error { + name := file.Name() + conn, err := file.SyscallConn() + if err != nil { + return fmt.Errorf("SyscallConn() failed on %s: %v", name, err) + } + if err := conn.Control(f); err != nil { + return fmt.Errorf("Failed to get file descriptor for %s: %v", name, err) + } + return nil } // only persist interface if NonPersist is NOT set if !tuntap.NonPersist { - _, _, errno := unix.Syscall(unix.SYS_IOCTL, fds[0].Fd(), uintptr(unix.TUNSETPERSIST), 1) + var errno syscall.Errno + if err := control(fds[0], func(fd uintptr) { + _, _, errno = unix.Syscall(unix.SYS_IOCTL, fd, uintptr(unix.TUNSETPERSIST), 1) + }); err != nil { + return err + } if errno != 0 { cleanupFds(fds) return fmt.Errorf("Tuntap IOCTL TUNSETPERSIST failed, errno %v", errno) @@ -1135,7 +1534,10 @@ func (h *Handle) linkModify(link Link, flags int) error { // un-persist (e.g. allow the interface to be removed) the tuntap // should not hurt if not set prior, condition might be not needed if !tuntap.NonPersist { - _, _, _ = unix.Syscall(unix.SYS_IOCTL, fds[0].Fd(), uintptr(unix.TUNSETPERSIST), 0) + // ignore error + _ = control(fds[0], func(fd uintptr) { + _, _, _ = unix.Syscall(unix.SYS_IOCTL, fd, uintptr(unix.TUNSETPERSIST), 0) + }) } cleanupFds(fds) return err @@ -1193,6 +1595,11 @@ func (h *Handle) linkModify(link Link, flags int) error { nameData := nl.NewRtAttr(unix.IFLA_IFNAME, nl.ZeroTerminated(base.Name)) req.AddData(nameData) + if base.Alias != "" { + alias := nl.NewRtAttr(unix.IFLA_IFALIAS, []byte(base.Alias)) + req.AddData(alias) + } + if base.MTU > 0 { mtu := nl.NewRtAttr(unix.IFLA_MTU, nl.Uint32Attr(uint32(base.MTU))) req.AddData(mtu) @@ -1228,6 +1635,21 @@ func (h *Handle) linkModify(link Link, flags int) error { req.AddData(gsoAttr) } + if base.GROMaxSize > 0 { + groAttr := nl.NewRtAttr(unix.IFLA_GRO_MAX_SIZE, nl.Uint32Attr(base.GROMaxSize)) + req.AddData(groAttr) + } + + if base.GSOIPv4MaxSize > 0 { + gsoAttr := nl.NewRtAttr(unix.IFLA_GSO_IPV4_MAX_SIZE, nl.Uint32Attr(base.GSOIPv4MaxSize)) + req.AddData(gsoAttr) + } + + if base.GROIPv4MaxSize > 0 { + groAttr := nl.NewRtAttr(unix.IFLA_GRO_IPV4_MAX_SIZE, nl.Uint32Attr(base.GROIPv4MaxSize)) + req.AddData(groAttr) + } + if base.Group > 0 { groupAttr := nl.NewRtAttr(unix.IFLA_GROUP, nl.Uint32Attr(base.Group)) req.AddData(groupAttr) @@ -1264,6 +1686,10 @@ func (h *Handle) linkModify(link Link, flags int) error { if link.VlanProtocol != VLAN_PROTOCOL_UNKNOWN { data.AddRtAttr(nl.IFLA_VLAN_PROTOCOL, htons(uint16(link.VlanProtocol))) } + case *Netkit: + if err := addNetkitAttrs(link, linkInfo, flags); err != nil { + return err + } case *Veth: data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) peer := data.AddRtAttr(nl.VETH_INFO_PEER, nil) @@ -1272,12 +1698,28 @@ func (h *Handle) linkModify(link Link, flags int) error { if base.TxQLen >= 0 { peer.AddRtAttr(unix.IFLA_TXQLEN, nl.Uint32Attr(uint32(base.TxQLen))) } + if base.NumTxQueues > 0 { + peer.AddRtAttr(unix.IFLA_NUM_TX_QUEUES, nl.Uint32Attr(uint32(base.NumTxQueues))) + } + if base.NumRxQueues > 0 { + peer.AddRtAttr(unix.IFLA_NUM_RX_QUEUES, nl.Uint32Attr(uint32(base.NumRxQueues))) + } if base.MTU > 0 { peer.AddRtAttr(unix.IFLA_MTU, nl.Uint32Attr(uint32(base.MTU))) } if link.PeerHardwareAddr != nil { peer.AddRtAttr(unix.IFLA_ADDRESS, []byte(link.PeerHardwareAddr)) } + if link.PeerNamespace != nil { + switch ns := link.PeerNamespace.(type) { + case NsPid: + val := nl.Uint32Attr(uint32(ns)) + peer.AddRtAttr(unix.IFLA_NET_NS_PID, val) + case NsFd: + val := nl.Uint32Attr(uint32(ns)) + peer.AddRtAttr(unix.IFLA_NET_NS_FD, val) + } + } case *Vxlan: addVxlanAttrs(link, linkInfo) case *Bond: @@ -1286,16 +1728,16 @@ func (h *Handle) linkModify(link Link, flags int) error { data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) data.AddRtAttr(nl.IFLA_IPVLAN_MODE, nl.Uint16Attr(uint16(link.Mode))) data.AddRtAttr(nl.IFLA_IPVLAN_FLAG, nl.Uint16Attr(uint16(link.Flag))) + case *IPVtap: + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) + data.AddRtAttr(nl.IFLA_IPVLAN_MODE, nl.Uint16Attr(uint16(link.Mode))) + data.AddRtAttr(nl.IFLA_IPVLAN_FLAG, nl.Uint16Attr(uint16(link.Flag))) case *Macvlan: - if link.Mode != MACVLAN_MODE_DEFAULT { - data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) - data.AddRtAttr(nl.IFLA_MACVLAN_MODE, nl.Uint32Attr(macvlanModes[link.Mode])) - } + addMacvlanAttrs(link, linkInfo) case *Macvtap: - if link.Mode != MACVLAN_MODE_DEFAULT { - data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) - data.AddRtAttr(nl.IFLA_MACVLAN_MODE, nl.Uint32Attr(macvlanModes[link.Mode])) - } + addMacvtapAttrs(link, linkInfo) + case *Geneve: + addGeneveAttrs(link, linkInfo) case *Gretap: addGretapAttrs(link, linkInfo) case *Iptun: @@ -1318,6 +1760,8 @@ func (h *Handle) linkModify(link Link, flags int) error { addXfrmiAttrs(link, linkInfo) case *IPoIB: addIPoIBAttrs(link, linkInfo) + case *BareUDP: + addBareUDPAttrs(link, linkInfo) } req.AddData(linkInfo) @@ -1372,6 +1816,13 @@ func (h *Handle) linkByNameDump(name string) (Link, error) { if link.Attrs().Name == name { return link, nil } + + // support finding interfaces also via altnames + for _, altName := range link.Attrs().AltNames { + if altName == name { + return link, nil + } + } } return nil, LinkNotFoundError{fmt.Errorf("Link %s not found", name)} } @@ -1410,6 +1861,9 @@ func (h *Handle) LinkByName(name string) (Link, error) { req.AddData(attr) nameData := nl.NewRtAttr(unix.IFLA_IFNAME, nl.ZeroTerminated(name)) + if len(name) > 15 { + nameData = nl.NewRtAttr(unix.IFLA_ALT_IFNAME, nl.ZeroTerminated(name)) + } req.AddData(nameData) link, err := execGetLink(req) @@ -1499,7 +1953,7 @@ func execGetLink(req *nl.NetlinkRequest) (Link, error) { } } -// linkDeserialize deserializes a raw message received from netlink into +// LinkDeserialize deserializes a raw message received from netlink into // a link object. func LinkDeserialize(hdr *unix.NlMsghdr, m []byte) (Link, error) { msg := nl.DeserializeIfInfomsg(m) @@ -1509,10 +1963,19 @@ func LinkDeserialize(hdr *unix.NlMsghdr, m []byte) (Link, error) { return nil, err } - base := LinkAttrs{Index: int(msg.Index), RawFlags: msg.Flags, Flags: linkFlags(msg.Flags), EncapType: msg.EncapType()} - if msg.Flags&unix.IFF_PROMISC != 0 { - base.Promisc = 1 + base := NewLinkAttrs() + base.Index = int(msg.Index) + base.RawFlags = msg.Flags + base.Flags = linkFlags(msg.Flags) + base.EncapType = msg.EncapType() + base.NetNsID = -1 + if msg.Flags&unix.IFF_ALLMULTI != 0 { + base.Allmulti = 1 } + if msg.Flags&unix.IFF_MULTICAST != 0 { + base.Multi = 1 + } + var ( link Link stats32 *LinkStatistics32 @@ -1541,18 +2004,26 @@ func LinkDeserialize(hdr *unix.NlMsghdr, m []byte) (Link, error) { link = &Bridge{} case "vlan": link = &Vlan{} + case "netkit": + link = &Netkit{} case "veth": link = &Veth{} + case "wireguard": + link = &Wireguard{} case "vxlan": link = &Vxlan{} case "bond": link = &Bond{} case "ipvlan": link = &IPVlan{} + case "ipvtap": + link = &IPVtap{} case "macvlan": link = &Macvlan{} case "macvtap": link = &Macvtap{} + case "geneve": + link = &Geneve{} case "gretap": link = &Gretap{} case "ip6gretap": @@ -1579,6 +2050,10 @@ func LinkDeserialize(hdr *unix.NlMsghdr, m []byte) (Link, error) { link = &Tuntap{} case "ipoib": link = &IPoIB{} + case "can": + link = &Can{} + case "bareudp": + link = &BareUDP{} default: link = &GenericLink{LinkType: linkType} } @@ -1588,6 +2063,8 @@ func LinkDeserialize(hdr *unix.NlMsghdr, m []byte) (Link, error) { return nil, err } switch linkType { + case "netkit": + parseNetkitData(link, data) case "vlan": parseVlanData(link, data) case "vxlan": @@ -1596,10 +2073,14 @@ func LinkDeserialize(hdr *unix.NlMsghdr, m []byte) (Link, error) { parseBondData(link, data) case "ipvlan": parseIPVlanData(link, data) + case "ipvtap": + parseIPVtapData(link, data) case "macvlan": parseMacvlanData(link, data) case "macvtap": parseMacvtapData(link, data) + case "geneve": + parseGeneveData(link, data) case "gretap": parseGretapData(link, data) case "ip6gretap": @@ -1628,13 +2109,21 @@ func LinkDeserialize(hdr *unix.NlMsghdr, m []byte) (Link, error) { parseTuntapData(link, data) case "ipoib": parseIPoIBData(link, data) + case "can": + parseCanData(link, data) + case "bareudp": + parseBareUDPData(link, data) } + case nl.IFLA_INFO_SLAVE_KIND: slaveType = string(info.Value[:len(info.Value)-1]) switch slaveType { case "bond": linkSlave = &BondSlave{} + case "vrf": + linkSlave = &VrfSlave{} } + case nl.IFLA_INFO_SLAVE_DATA: switch slaveType { case "bond": @@ -1643,6 +2132,12 @@ func LinkDeserialize(hdr *unix.NlMsghdr, m []byte) (Link, error) { return nil, err } parseBondSlaveData(linkSlave, data) + case "vrf": + data, err := nl.ParseRouteAttr(info.Value) + if err != nil { + return nil, err + } + parseVrfSlaveData(linkSlave, data) } } } @@ -1660,6 +2155,8 @@ func LinkDeserialize(hdr *unix.NlMsghdr, m []byte) (Link, error) { base.Name = string(attr.Value[:len(attr.Value)-1]) case unix.IFLA_MTU: base.MTU = int(native.Uint32(attr.Value[0:4])) + case unix.IFLA_PROMISCUITY: + base.Promisc = int(native.Uint32(attr.Value[0:4])) case unix.IFLA_LINK: base.ParentIndex = int(native.Uint32(attr.Value[0:4])) case unix.IFLA_MASTER: @@ -1694,14 +2191,38 @@ func LinkDeserialize(hdr *unix.NlMsghdr, m []byte) (Link, error) { protinfo := parseProtinfo(attrs) base.Protinfo = &protinfo } + case unix.IFLA_PROP_LIST | unix.NLA_F_NESTED: + attrs, err := nl.ParseRouteAttr(attr.Value[:]) + if err != nil { + return nil, err + } + + base.AltNames = []string{} + for _, attr := range attrs { + if attr.Attr.Type == unix.IFLA_ALT_IFNAME { + base.AltNames = append(base.AltNames, nl.BytesToString(attr.Value)) + } + } case unix.IFLA_OPERSTATE: base.OperState = LinkOperState(uint8(attr.Value[0])) + case unix.IFLA_PHYS_SWITCH_ID: + base.PhysSwitchID = int(native.Uint32(attr.Value[0:4])) case unix.IFLA_LINK_NETNSID: base.NetNsID = int(native.Uint32(attr.Value[0:4])) - case unix.IFLA_GSO_MAX_SIZE: - base.GSOMaxSize = native.Uint32(attr.Value[0:4]) + case unix.IFLA_TSO_MAX_SEGS: + base.TSOMaxSegs = native.Uint32(attr.Value[0:4]) + case unix.IFLA_TSO_MAX_SIZE: + base.TSOMaxSize = native.Uint32(attr.Value[0:4]) case unix.IFLA_GSO_MAX_SEGS: base.GSOMaxSegs = native.Uint32(attr.Value[0:4]) + case unix.IFLA_GSO_MAX_SIZE: + base.GSOMaxSize = native.Uint32(attr.Value[0:4]) + case unix.IFLA_GRO_MAX_SIZE: + base.GROMaxSize = native.Uint32(attr.Value[0:4]) + case unix.IFLA_GSO_IPV4_MAX_SIZE: + base.GSOIPv4MaxSize = native.Uint32(attr.Value[0:4]) + case unix.IFLA_GRO_IPV4_MAX_SIZE: + base.GROIPv4MaxSize = native.Uint32(attr.Value[0:4]) case unix.IFLA_VFINFO_LIST: data, err := nl.ParseRouteAttr(attr.Value) if err != nil { @@ -1718,6 +2239,13 @@ func LinkDeserialize(hdr *unix.NlMsghdr, m []byte) (Link, error) { base.NumRxQueues = int(native.Uint32(attr.Value[0:4])) case unix.IFLA_GROUP: base.Group = native.Uint32(attr.Value[0:4]) + case unix.IFLA_PERM_ADDRESS: + for _, b := range attr.Value { + if b != 0 { + base.PermHWAddr = attr.Value[:] + break + } + } } } @@ -1830,21 +2358,24 @@ type LinkUpdate struct { // LinkSubscribe takes a chan down which notifications will be sent // when links change. Close the 'done' chan to stop subscription. func LinkSubscribe(ch chan<- LinkUpdate, done <-chan struct{}) error { - return linkSubscribeAt(netns.None(), netns.None(), ch, done, nil, false) + return linkSubscribeAt(netns.None(), netns.None(), ch, done, nil, false, 0, nil, false) } // LinkSubscribeAt works like LinkSubscribe plus it allows the caller // to choose the network namespace in which to subscribe (ns). func LinkSubscribeAt(ns netns.NsHandle, ch chan<- LinkUpdate, done <-chan struct{}) error { - return linkSubscribeAt(ns, netns.None(), ch, done, nil, false) + return linkSubscribeAt(ns, netns.None(), ch, done, nil, false, 0, nil, false) } // LinkSubscribeOptions contains a set of options to use with // LinkSubscribeWithOptions. type LinkSubscribeOptions struct { - Namespace *netns.NsHandle - ErrorCallback func(error) - ListExisting bool + Namespace *netns.NsHandle + ErrorCallback func(error) + ListExisting bool + ReceiveBufferSize int + ReceiveBufferForceSize bool + ReceiveTimeout *unix.Timeval } // LinkSubscribeWithOptions work like LinkSubscribe but enable to @@ -1855,14 +2386,27 @@ func LinkSubscribeWithOptions(ch chan<- LinkUpdate, done <-chan struct{}, option none := netns.None() options.Namespace = &none } - return linkSubscribeAt(*options.Namespace, netns.None(), ch, done, options.ErrorCallback, options.ListExisting) + return linkSubscribeAt(*options.Namespace, netns.None(), ch, done, options.ErrorCallback, options.ListExisting, + options.ReceiveBufferSize, options.ReceiveTimeout, options.ReceiveBufferForceSize) } -func linkSubscribeAt(newNs, curNs netns.NsHandle, ch chan<- LinkUpdate, done <-chan struct{}, cberr func(error), listExisting bool) error { +func linkSubscribeAt(newNs, curNs netns.NsHandle, ch chan<- LinkUpdate, done <-chan struct{}, cberr func(error), listExisting bool, + rcvbuf int, rcvTimeout *unix.Timeval, rcvbufForce bool) error { s, err := nl.SubscribeAt(newNs, curNs, unix.NETLINK_ROUTE, unix.RTNLGRP_LINK) if err != nil { return err } + if rcvTimeout != nil { + if err := s.SetReceiveTimeout(rcvTimeout); err != nil { + return err + } + } + if rcvbuf != 0 { + err = s.SetReceiveBufferSize(rcvbuf, rcvbufForce) + if err != nil { + return err + } + } if done != nil { go func() { <-done @@ -1884,7 +2428,8 @@ func linkSubscribeAt(newNs, curNs netns.NsHandle, ch chan<- LinkUpdate, done <-c msgs, from, err := s.Receive() if err != nil { if cberr != nil { - cberr(err) + cberr(fmt.Errorf("Receive failed: %v", + err)) } return } @@ -1899,15 +2444,15 @@ func linkSubscribeAt(newNs, curNs netns.NsHandle, ch chan<- LinkUpdate, done <-c continue } if m.Header.Type == unix.NLMSG_ERROR { - native := nl.NativeEndian() error := int32(native.Uint32(m.Data[0:4])) if error == 0 { continue } if cberr != nil { - cberr(syscall.Errno(-error)) + cberr(fmt.Errorf("error message: %v", + syscall.Errno(-error))) } - return + continue } ifmsg := nl.DeserializeIfInfomsg(m.Data) header := unix.NlMsghdr(m.Header) @@ -1916,7 +2461,7 @@ func linkSubscribeAt(newNs, curNs netns.NsHandle, ch chan<- LinkUpdate, done <-c if cberr != nil { cberr(err) } - return + continue } ch <- LinkUpdate{IfInfomsg: *ifmsg, Header: header, Link: link} } @@ -1942,6 +2487,16 @@ func (h *Handle) LinkSetGuard(link Link, mode bool) error { return h.setProtinfoAttr(link, mode, nl.IFLA_BRPORT_GUARD) } +// LinkSetBRSlaveGroupFwdMask set the group_fwd_mask of a bridge slave interface +func LinkSetBRSlaveGroupFwdMask(link Link, mask uint16) error { + return pkgHandle.LinkSetBRSlaveGroupFwdMask(link, mask) +} + +// LinkSetBRSlaveGroupFwdMask set the group_fwd_mask of a bridge slave interface +func (h *Handle) LinkSetBRSlaveGroupFwdMask(link Link, mask uint16) error { + return h.setProtinfoAttrRawVal(link, nl.Uint16Attr(mask), nl.IFLA_BRPORT_GROUP_FWD_MASK) +} + func LinkSetFastLeave(link Link, mode bool) error { return pkgHandle.LinkSetFastLeave(link, mode) } @@ -1974,6 +2529,14 @@ func (h *Handle) LinkSetFlood(link Link, mode bool) error { return h.setProtinfoAttr(link, mode, nl.IFLA_BRPORT_UNICAST_FLOOD) } +func LinkSetIsolated(link Link, mode bool) error { + return pkgHandle.LinkSetIsolated(link, mode) +} + +func (h *Handle) LinkSetIsolated(link Link, mode bool) error { + return h.setProtinfoAttr(link, mode, nl.IFLA_BRPORT_ISOLATED) +} + func LinkSetBrProxyArp(link Link, mode bool) error { return pkgHandle.LinkSetBrProxyArp(link, mode) } @@ -1990,7 +2553,15 @@ func (h *Handle) LinkSetBrProxyArpWiFi(link Link, mode bool) error { return h.setProtinfoAttr(link, mode, nl.IFLA_BRPORT_PROXYARP_WIFI) } -func (h *Handle) setProtinfoAttr(link Link, mode bool, attr int) error { +func LinkSetBrNeighSuppress(link Link, mode bool) error { + return pkgHandle.LinkSetBrNeighSuppress(link, mode) +} + +func (h *Handle) LinkSetBrNeighSuppress(link Link, mode bool) error { + return h.setProtinfoAttr(link, mode, nl.IFLA_BRPORT_NEIGH_SUPPRESS) +} + +func (h *Handle) setProtinfoAttrRawVal(link Link, val []byte, attr int) error { base := link.Attrs() h.ensureIndex(base) req := h.newNetlinkRequest(unix.RTM_SETLINK, unix.NLM_F_ACK) @@ -2000,7 +2571,7 @@ func (h *Handle) setProtinfoAttr(link Link, mode bool, attr int) error { req.AddData(msg) br := nl.NewRtAttr(unix.IFLA_PROTINFO|unix.NLA_F_NESTED, nil) - br.AddRtAttr(attr, boolToByte(mode)) + br.AddRtAttr(attr, val) req.AddData(br) _, err := req.Execute(unix.NETLINK_ROUTE, 0) if err != nil { @@ -2008,6 +2579,9 @@ func (h *Handle) setProtinfoAttr(link Link, mode bool, attr int) error { } return nil } +func (h *Handle) setProtinfoAttr(link Link, mode bool, attr int) error { + return h.setProtinfoAttrRawVal(link, boolToByte(mode), attr) +} // LinkSetTxQLen sets the transaction queue length for the link. // Equivalent to: `ip link set $link txqlen $qlen` @@ -2065,6 +2639,80 @@ func (h *Handle) LinkSetGroup(link Link, group int) error { return err } +func addNetkitAttrs(nk *Netkit, linkInfo *nl.RtAttr, flag int) error { + if nk.peerLinkAttrs.HardwareAddr != nil || nk.HardwareAddr != nil { + return fmt.Errorf("netkit doesn't support setting Ethernet") + } + + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) + // Kernel will return error if trying to change the mode of an existing netkit device + data.AddRtAttr(nl.IFLA_NETKIT_MODE, nl.Uint32Attr(uint32(nk.Mode))) + data.AddRtAttr(nl.IFLA_NETKIT_POLICY, nl.Uint32Attr(uint32(nk.Policy))) + data.AddRtAttr(nl.IFLA_NETKIT_PEER_POLICY, nl.Uint32Attr(uint32(nk.PeerPolicy))) + + if (flag & unix.NLM_F_EXCL) == 0 { + // Modifying peer link attributes will not take effect + return nil + } + + peer := data.AddRtAttr(nl.IFLA_NETKIT_PEER_INFO, nil) + msg := nl.NewIfInfomsg(unix.AF_UNSPEC) + if nk.peerLinkAttrs.Flags&net.FlagUp != 0 { + msg.Change = unix.IFF_UP + msg.Flags = unix.IFF_UP + } + if nk.peerLinkAttrs.Index != 0 { + msg.Index = int32(nk.peerLinkAttrs.Index) + } + peer.AddChild(msg) + if nk.peerLinkAttrs.Name != "" { + peer.AddRtAttr(unix.IFLA_IFNAME, nl.ZeroTerminated(nk.peerLinkAttrs.Name)) + } + if nk.peerLinkAttrs.MTU > 0 { + peer.AddRtAttr(unix.IFLA_MTU, nl.Uint32Attr(uint32(nk.peerLinkAttrs.MTU))) + } + if nk.peerLinkAttrs.GSOMaxSegs > 0 { + peer.AddRtAttr(unix.IFLA_GSO_MAX_SEGS, nl.Uint32Attr(nk.peerLinkAttrs.GSOMaxSegs)) + } + if nk.peerLinkAttrs.GSOMaxSize > 0 { + peer.AddRtAttr(unix.IFLA_GSO_MAX_SIZE, nl.Uint32Attr(nk.peerLinkAttrs.GSOMaxSize)) + } + if nk.peerLinkAttrs.GSOIPv4MaxSize > 0 { + peer.AddRtAttr(unix.IFLA_GSO_IPV4_MAX_SIZE, nl.Uint32Attr(nk.peerLinkAttrs.GSOIPv4MaxSize)) + } + if nk.peerLinkAttrs.GROIPv4MaxSize > 0 { + peer.AddRtAttr(unix.IFLA_GRO_IPV4_MAX_SIZE, nl.Uint32Attr(nk.peerLinkAttrs.GROIPv4MaxSize)) + } + if nk.peerLinkAttrs.Namespace != nil { + switch ns := nk.peerLinkAttrs.Namespace.(type) { + case NsPid: + peer.AddRtAttr(unix.IFLA_NET_NS_PID, nl.Uint32Attr(uint32(ns))) + case NsFd: + peer.AddRtAttr(unix.IFLA_NET_NS_FD, nl.Uint32Attr(uint32(ns))) + } + } + return nil +} + +func parseNetkitData(link Link, data []syscall.NetlinkRouteAttr) { + netkit := link.(*Netkit) + for _, datum := range data { + switch datum.Attr.Type { + case nl.IFLA_NETKIT_PRIMARY: + isPrimary := datum.Value[0:1][0] + if isPrimary != 0 { + netkit.isPrimary = true + } + case nl.IFLA_NETKIT_MODE: + netkit.Mode = NetkitMode(native.Uint32(datum.Value[0:4])) + case nl.IFLA_NETKIT_POLICY: + netkit.Policy = NetkitPolicy(native.Uint32(datum.Value[0:4])) + case nl.IFLA_NETKIT_PEER_POLICY: + netkit.PeerPolicy = NetkitPolicy(native.Uint32(datum.Value[0:4])) + } + } +} + func parseVlanData(link Link, data []syscall.NetlinkRouteAttr) { vlan := link.(*Vlan) for _, datum := range data { @@ -2080,6 +2728,13 @@ func parseVlanData(link Link, data []syscall.NetlinkRouteAttr) { func parseVxlanData(link Link, data []syscall.NetlinkRouteAttr) { vxlan := link.(*Vxlan) for _, datum := range data { + // NOTE(vish): Apparently some messages can be sent with no value. + // We special case GBP here to not change existing + // functionality. It appears that GBP sends a datum.Value + // of null. + if len(datum.Value) == 0 && datum.Attr.Type != nl.IFLA_VXLAN_GBP { + continue + } switch datum.Attr.Type { case nl.IFLA_VXLAN_ID: vxlan.VxlanId = int(native.Uint32(datum.Value[0:4])) @@ -2178,7 +2833,7 @@ func parseBondData(link Link, data []syscall.NetlinkRouteAttr) { case nl.IFLA_BOND_LP_INTERVAL: bond.LpInterval = int(native.Uint32(data[i].Value[0:4])) case nl.IFLA_BOND_PACKETS_PER_SLAVE: - bond.PackersPerSlave = int(native.Uint32(data[i].Value[0:4])) + bond.PacketsPerSlave = int(native.Uint32(data[i].Value[0:4])) case nl.IFLA_BOND_AD_LACP_RATE: bond.LacpRate = BondLacpRate(data[i].Value[0]) case nl.IFLA_BOND_AD_SELECT: @@ -2258,6 +2913,16 @@ func parseBondSlaveData(slave LinkSlave, data []syscall.NetlinkRouteAttr) { } } +func parseVrfSlaveData(slave LinkSlave, data []syscall.NetlinkRouteAttr) { + vrfSlave := slave.(*VrfSlave) + for i := range data { + switch data[i].Attr.Type { + case nl.IFLA_BOND_SLAVE_STATE: + vrfSlave.Table = native.Uint32(data[i].Value[0:4]) + } + } +} + func parseIPVlanData(link Link, data []syscall.NetlinkRouteAttr) { ipv := link.(*IPVlan) for _, datum := range data { @@ -2270,11 +2935,42 @@ func parseIPVlanData(link Link, data []syscall.NetlinkRouteAttr) { } } +func parseIPVtapData(link Link, data []syscall.NetlinkRouteAttr) { + ipv := link.(*IPVtap) + for _, datum := range data { + switch datum.Attr.Type { + case nl.IFLA_IPVLAN_MODE: + ipv.Mode = IPVlanMode(native.Uint32(datum.Value[0:4])) + case nl.IFLA_IPVLAN_FLAG: + ipv.Flag = IPVlanFlag(native.Uint32(datum.Value[0:4])) + } + } +} + +func addMacvtapAttrs(macvtap *Macvtap, linkInfo *nl.RtAttr) { + addMacvlanAttrs(&macvtap.Macvlan, linkInfo) +} + func parseMacvtapData(link Link, data []syscall.NetlinkRouteAttr) { macv := link.(*Macvtap) parseMacvlanData(&macv.Macvlan, data) } +func addMacvlanAttrs(macvlan *Macvlan, linkInfo *nl.RtAttr) { + var data *nl.RtAttr + + if macvlan.Mode != MACVLAN_MODE_DEFAULT || macvlan.BCQueueLen > 0 { + data = linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) + } + + if macvlan.Mode != MACVLAN_MODE_DEFAULT { + data.AddRtAttr(nl.IFLA_MACVLAN_MODE, nl.Uint32Attr(macvlanModes[macvlan.Mode])) + } + if macvlan.BCQueueLen > 0 { + data.AddRtAttr(nl.IFLA_MACVLAN_BC_QUEUE_LEN, nl.Uint32Attr(macvlan.BCQueueLen)) + } +} + func parseMacvlanData(link Link, data []syscall.NetlinkRouteAttr) { macv := link.(*Macvlan) for _, datum := range data { @@ -2302,6 +2998,10 @@ func parseMacvlanData(link Link, data []syscall.NetlinkRouteAttr) { for _, macDatum := range macs { macv.MACAddrs = append(macv.MACAddrs, net.HardwareAddr(macDatum.Value[0:6])) } + case nl.IFLA_MACVLAN_BC_QUEUE_LEN: + macv.BCQueueLen = native.Uint32(datum.Value[0:4]) + case nl.IFLA_MACVLAN_BC_QUEUE_LEN_USED: + macv.UsedBCQueueLen = native.Uint32(datum.Value[0:4]) } } } @@ -2327,12 +3027,73 @@ func linkFlags(rawFlags uint32) net.Flags { return f } +func addGeneveAttrs(geneve *Geneve, linkInfo *nl.RtAttr) { + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) + + if geneve.InnerProtoInherit { + data.AddRtAttr(nl.IFLA_GENEVE_INNER_PROTO_INHERIT, []byte{}) + } + + if geneve.FlowBased { + geneve.ID = 0 + data.AddRtAttr(nl.IFLA_GENEVE_COLLECT_METADATA, []byte{}) + } + + if ip := geneve.Remote; ip != nil { + if ip4 := ip.To4(); ip4 != nil { + data.AddRtAttr(nl.IFLA_GENEVE_REMOTE, ip.To4()) + } else { + data.AddRtAttr(nl.IFLA_GENEVE_REMOTE6, []byte(ip)) + } + } + + if geneve.ID != 0 { + data.AddRtAttr(nl.IFLA_GENEVE_ID, nl.Uint32Attr(geneve.ID)) + } + + if geneve.Dport != 0 { + data.AddRtAttr(nl.IFLA_GENEVE_PORT, htons(geneve.Dport)) + } + + if geneve.Ttl != 0 { + data.AddRtAttr(nl.IFLA_GENEVE_TTL, nl.Uint8Attr(geneve.Ttl)) + } + + if geneve.Tos != 0 { + data.AddRtAttr(nl.IFLA_GENEVE_TOS, nl.Uint8Attr(geneve.Tos)) + } + + data.AddRtAttr(nl.IFLA_GENEVE_DF, nl.Uint8Attr(uint8(geneve.Df))) +} + +func parseGeneveData(link Link, data []syscall.NetlinkRouteAttr) { + geneve := link.(*Geneve) + for _, datum := range data { + switch datum.Attr.Type { + case nl.IFLA_GENEVE_ID: + geneve.ID = native.Uint32(datum.Value[0:4]) + case nl.IFLA_GENEVE_REMOTE, nl.IFLA_GENEVE_REMOTE6: + geneve.Remote = datum.Value + case nl.IFLA_GENEVE_PORT: + geneve.Dport = ntohs(datum.Value[0:2]) + case nl.IFLA_GENEVE_TTL: + geneve.Ttl = uint8(datum.Value[0]) + case nl.IFLA_GENEVE_TOS: + geneve.Tos = uint8(datum.Value[0]) + case nl.IFLA_GENEVE_COLLECT_METADATA: + geneve.FlowBased = true + case nl.IFLA_GENEVE_INNER_PROTO_INHERIT: + geneve.InnerProtoInherit = true + } + } +} + func addGretapAttrs(gretap *Gretap, linkInfo *nl.RtAttr) { data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) if gretap.FlowBased { // In flow based mode, no other attributes need to be configured - data.AddRtAttr(nl.IFLA_GRE_COLLECT_METADATA, boolAttr(gretap.FlowBased)) + data.AddRtAttr(nl.IFLA_GRE_COLLECT_METADATA, []byte{}) return } @@ -2415,6 +3176,12 @@ func parseGretapData(link Link, data []syscall.NetlinkRouteAttr) { func addGretunAttrs(gre *Gretun, linkInfo *nl.RtAttr) { data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) + if gre.FlowBased { + // In flow based mode, no other attributes need to be configured + data.AddRtAttr(nl.IFLA_GRE_COLLECT_METADATA, []byte{}) + return + } + if ip := gre.Local; ip != nil { if ip.To4() != nil { ip = ip.To4() @@ -2485,6 +3252,8 @@ func parseGretunData(link Link, data []syscall.NetlinkRouteAttr) { gre.EncapSport = ntohs(datum.Value[0:2]) case nl.IFLA_GRE_ENCAP_DPORT: gre.EncapDport = ntohs(datum.Value[0:2]) + case nl.IFLA_GRE_COLLECT_METADATA: + gre.FlowBased = true } } } @@ -2513,7 +3282,8 @@ func parseLinkXdp(data []byte) (*LinkXdp, error) { case nl.IFLA_XDP_FD: xdp.Fd = int(native.Uint32(attr.Value[0:4])) case nl.IFLA_XDP_ATTACHED: - xdp.Attached = attr.Value[0] != 0 + xdp.AttachMode = uint32(attr.Value[0]) + xdp.Attached = xdp.AttachMode != 0 case nl.IFLA_XDP_FLAGS: xdp.Flags = native.Uint32(attr.Value[0:4]) case nl.IFLA_XDP_PROG_ID: @@ -2524,14 +3294,14 @@ func parseLinkXdp(data []byte) (*LinkXdp, error) { } func addIptunAttrs(iptun *Iptun, linkInfo *nl.RtAttr) { + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) + if iptun.FlowBased { // In flow based mode, no other attributes need to be configured - linkInfo.AddRtAttr(nl.IFLA_IPTUN_COLLECT_METADATA, boolAttr(iptun.FlowBased)) + data.AddRtAttr(nl.IFLA_IPTUN_COLLECT_METADATA, []byte{}) return } - data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) - ip := iptun.Local.To4() if ip != nil { data.AddRtAttr(nl.IFLA_IPTUN_LOCAL, []byte(ip)) @@ -2552,6 +3322,7 @@ func addIptunAttrs(iptun *Iptun, linkInfo *nl.RtAttr) { data.AddRtAttr(nl.IFLA_IPTUN_ENCAP_FLAGS, nl.Uint16Attr(iptun.EncapFlags)) data.AddRtAttr(nl.IFLA_IPTUN_ENCAP_SPORT, htons(iptun.EncapSport)) data.AddRtAttr(nl.IFLA_IPTUN_ENCAP_DPORT, htons(iptun.EncapDport)) + data.AddRtAttr(nl.IFLA_IPTUN_PROTO, nl.Uint8Attr(iptun.Proto)) } func parseIptunData(link Link, data []syscall.NetlinkRouteAttr) { @@ -2577,7 +3348,9 @@ func parseIptunData(link Link, data []syscall.NetlinkRouteAttr) { case nl.IFLA_IPTUN_ENCAP_FLAGS: iptun.EncapFlags = native.Uint16(datum.Value[0:2]) case nl.IFLA_IPTUN_COLLECT_METADATA: - iptun.FlowBased = int8(datum.Value[0]) != 0 + iptun.FlowBased = true + case nl.IFLA_IPTUN_PROTO: + iptun.Proto = datum.Value[0] } } } @@ -2585,6 +3358,12 @@ func parseIptunData(link Link, data []syscall.NetlinkRouteAttr) { func addIp6tnlAttrs(ip6tnl *Ip6tnl, linkInfo *nl.RtAttr) { data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) + if ip6tnl.FlowBased { + // In flow based mode, no other attributes need to be configured + data.AddRtAttr(nl.IFLA_IPTUN_COLLECT_METADATA, []byte{}) + return + } + if ip6tnl.Link != 0 { data.AddRtAttr(nl.IFLA_IPTUN_LINK, nl.Uint32Attr(ip6tnl.Link)) } @@ -2601,10 +3380,14 @@ func addIp6tnlAttrs(ip6tnl *Ip6tnl, linkInfo *nl.RtAttr) { data.AddRtAttr(nl.IFLA_IPTUN_TTL, nl.Uint8Attr(ip6tnl.Ttl)) data.AddRtAttr(nl.IFLA_IPTUN_TOS, nl.Uint8Attr(ip6tnl.Tos)) - data.AddRtAttr(nl.IFLA_IPTUN_ENCAP_LIMIT, nl.Uint8Attr(ip6tnl.EncapLimit)) data.AddRtAttr(nl.IFLA_IPTUN_FLAGS, nl.Uint32Attr(ip6tnl.Flags)) data.AddRtAttr(nl.IFLA_IPTUN_PROTO, nl.Uint8Attr(ip6tnl.Proto)) data.AddRtAttr(nl.IFLA_IPTUN_FLOWINFO, nl.Uint32Attr(ip6tnl.FlowInfo)) + data.AddRtAttr(nl.IFLA_IPTUN_ENCAP_LIMIT, nl.Uint8Attr(ip6tnl.EncapLimit)) + data.AddRtAttr(nl.IFLA_IPTUN_ENCAP_TYPE, nl.Uint16Attr(ip6tnl.EncapType)) + data.AddRtAttr(nl.IFLA_IPTUN_ENCAP_FLAGS, nl.Uint16Attr(ip6tnl.EncapFlags)) + data.AddRtAttr(nl.IFLA_IPTUN_ENCAP_SPORT, htons(ip6tnl.EncapSport)) + data.AddRtAttr(nl.IFLA_IPTUN_ENCAP_DPORT, htons(ip6tnl.EncapDport)) } func parseIp6tnlData(link Link, data []syscall.NetlinkRouteAttr) { @@ -2616,17 +3399,27 @@ func parseIp6tnlData(link Link, data []syscall.NetlinkRouteAttr) { case nl.IFLA_IPTUN_REMOTE: ip6tnl.Remote = net.IP(datum.Value[:16]) case nl.IFLA_IPTUN_TTL: - ip6tnl.Ttl = uint8(datum.Value[0]) + ip6tnl.Ttl = datum.Value[0] case nl.IFLA_IPTUN_TOS: - ip6tnl.Tos = uint8(datum.Value[0]) - case nl.IFLA_IPTUN_ENCAP_LIMIT: - ip6tnl.EncapLimit = uint8(datum.Value[0]) + ip6tnl.Tos = datum.Value[0] case nl.IFLA_IPTUN_FLAGS: ip6tnl.Flags = native.Uint32(datum.Value[:4]) case nl.IFLA_IPTUN_PROTO: - ip6tnl.Proto = uint8(datum.Value[0]) + ip6tnl.Proto = datum.Value[0] case nl.IFLA_IPTUN_FLOWINFO: ip6tnl.FlowInfo = native.Uint32(datum.Value[:4]) + case nl.IFLA_IPTUN_ENCAP_LIMIT: + ip6tnl.EncapLimit = datum.Value[0] + case nl.IFLA_IPTUN_ENCAP_TYPE: + ip6tnl.EncapType = native.Uint16(datum.Value[0:2]) + case nl.IFLA_IPTUN_ENCAP_FLAGS: + ip6tnl.EncapFlags = native.Uint16(datum.Value[0:2]) + case nl.IFLA_IPTUN_ENCAP_SPORT: + ip6tnl.EncapSport = ntohs(datum.Value[0:2]) + case nl.IFLA_IPTUN_ENCAP_DPORT: + ip6tnl.EncapDport = ntohs(datum.Value[0:2]) + case nl.IFLA_IPTUN_COLLECT_METADATA: + ip6tnl.FlowBased = true } } } @@ -2653,8 +3446,10 @@ func addSittunAttrs(sittun *Sittun, linkInfo *nl.RtAttr) { data.AddRtAttr(nl.IFLA_IPTUN_TTL, nl.Uint8Attr(sittun.Ttl)) } + data.AddRtAttr(nl.IFLA_IPTUN_PROTO, nl.Uint8Attr(sittun.Proto)) data.AddRtAttr(nl.IFLA_IPTUN_TOS, nl.Uint8Attr(sittun.Tos)) data.AddRtAttr(nl.IFLA_IPTUN_PMTUDISC, nl.Uint8Attr(sittun.PMtuDisc)) + data.AddRtAttr(nl.IFLA_IPTUN_ENCAP_LIMIT, nl.Uint8Attr(sittun.EncapLimit)) data.AddRtAttr(nl.IFLA_IPTUN_ENCAP_TYPE, nl.Uint16Attr(sittun.EncapType)) data.AddRtAttr(nl.IFLA_IPTUN_ENCAP_FLAGS, nl.Uint16Attr(sittun.EncapFlags)) data.AddRtAttr(nl.IFLA_IPTUN_ENCAP_SPORT, htons(sittun.EncapSport)) @@ -2670,11 +3465,13 @@ func parseSittunData(link Link, data []syscall.NetlinkRouteAttr) { case nl.IFLA_IPTUN_REMOTE: sittun.Remote = net.IP(datum.Value[0:4]) case nl.IFLA_IPTUN_TTL: - sittun.Ttl = uint8(datum.Value[0]) + sittun.Ttl = datum.Value[0] case nl.IFLA_IPTUN_TOS: - sittun.Tos = uint8(datum.Value[0]) + sittun.Tos = datum.Value[0] case nl.IFLA_IPTUN_PMTUDISC: - sittun.PMtuDisc = uint8(datum.Value[0]) + sittun.PMtuDisc = datum.Value[0] + case nl.IFLA_IPTUN_PROTO: + sittun.Proto = datum.Value[0] case nl.IFLA_IPTUN_ENCAP_TYPE: sittun.EncapType = native.Uint16(datum.Value[0:2]) case nl.IFLA_IPTUN_ENCAP_FLAGS: @@ -2761,18 +3558,30 @@ func addBridgeAttrs(bridge *Bridge, linkInfo *nl.RtAttr) { if bridge.MulticastSnooping != nil { data.AddRtAttr(nl.IFLA_BR_MCAST_SNOOPING, boolToByte(*bridge.MulticastSnooping)) } + if bridge.AgeingTime != nil { + data.AddRtAttr(nl.IFLA_BR_AGEING_TIME, nl.Uint32Attr(*bridge.AgeingTime)) + } if bridge.HelloTime != nil { data.AddRtAttr(nl.IFLA_BR_HELLO_TIME, nl.Uint32Attr(*bridge.HelloTime)) } if bridge.VlanFiltering != nil { data.AddRtAttr(nl.IFLA_BR_VLAN_FILTERING, boolToByte(*bridge.VlanFiltering)) } + if bridge.VlanDefaultPVID != nil { + data.AddRtAttr(nl.IFLA_BR_VLAN_DEFAULT_PVID, nl.Uint16Attr(*bridge.VlanDefaultPVID)) + } + if bridge.GroupFwdMask != nil { + data.AddRtAttr(nl.IFLA_BR_GROUP_FWD_MASK, nl.Uint16Attr(*bridge.GroupFwdMask)) + } } func parseBridgeData(bridge Link, data []syscall.NetlinkRouteAttr) { br := bridge.(*Bridge) for _, datum := range data { switch datum.Attr.Type { + case nl.IFLA_BR_AGEING_TIME: + ageingTime := native.Uint32(datum.Value[0:4]) + br.AgeingTime = &ageingTime case nl.IFLA_BR_HELLO_TIME: helloTime := native.Uint32(datum.Value[0:4]) br.HelloTime = &helloTime @@ -2782,6 +3591,12 @@ func parseBridgeData(bridge Link, data []syscall.NetlinkRouteAttr) { case nl.IFLA_BR_VLAN_FILTERING: vlanFiltering := datum.Value[0] == 1 br.VlanFiltering = &vlanFiltering + case nl.IFLA_BR_VLAN_DEFAULT_PVID: + vlanDefaultPVID := native.Uint16(datum.Value[0:2]) + br.VlanDefaultPVID = &vlanDefaultPVID + case nl.IFLA_BR_GROUP_FWD_MASK: + mask := native.Uint16(datum.Value[0:2]) + br.GroupFwdMask = &mask } } } @@ -2823,12 +3638,17 @@ func parseVfInfoList(data []syscall.NetlinkRouteAttr) ([]VfInfo, error) { if err != nil { return nil, err } - vfs = append(vfs, parseVfInfo(vfAttrs, i)) + + vf, err := parseVfInfo(vfAttrs, i) + if err != nil { + return nil, err + } + vfs = append(vfs, vf) } return vfs, nil } -func parseVfInfo(data []syscall.NetlinkRouteAttr, id int) VfInfo { +func parseVfInfo(data []syscall.NetlinkRouteAttr, id int) (VfInfo, error) { vf := VfInfo{ID: id} for _, element := range data { switch element.Attr.Type { @@ -2839,6 +3659,12 @@ func parseVfInfo(data []syscall.NetlinkRouteAttr, id int) VfInfo { vl := nl.DeserializeVfVlan(element.Value[:]) vf.Vlan = int(vl.Vlan) vf.Qos = int(vl.Qos) + case nl.IFLA_VF_VLAN_LIST: + vfVlanInfoList, err := nl.DeserializeVfVlanList(element.Value[:]) + if err != nil { + return vf, err + } + vf.VlanProto = int(vfVlanInfoList[0].VlanProto) case nl.IFLA_VF_TX_RATE: txr := nl.DeserializeVfTxRate(element.Value[:]) vf.TxRate = int(txr.Rate) @@ -2852,16 +3678,35 @@ func parseVfInfo(data []syscall.NetlinkRouteAttr, id int) VfInfo { vfr := nl.DeserializeVfRate(element.Value[:]) vf.MaxTxRate = vfr.MaxTxRate vf.MinTxRate = vfr.MinTxRate + case nl.IFLA_VF_STATS: + vfstats := nl.DeserializeVfStats(element.Value[:]) + vf.RxPackets = vfstats.RxPackets + vf.TxPackets = vfstats.TxPackets + vf.RxBytes = vfstats.RxBytes + vf.TxBytes = vfstats.TxBytes + vf.Multicast = vfstats.Multicast + vf.Broadcast = vfstats.Broadcast + vf.RxDropped = vfstats.RxDropped + vf.TxDropped = vfstats.TxDropped + + case nl.IFLA_VF_RSS_QUERY_EN: + result := nl.DeserializeVfRssQueryEn(element.Value) + vf.RssQuery = result.Setting + + case nl.IFLA_VF_TRUST: + result := nl.DeserializeVfTrust(element.Value) + vf.Trust = result.Setting } } - return vf + return vf, nil } func addXfrmiAttrs(xfrmi *Xfrmi, linkInfo *nl.RtAttr) { data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) data.AddRtAttr(nl.IFLA_XFRM_LINK, nl.Uint32Attr(uint32(xfrmi.ParentIndex))) - data.AddRtAttr(nl.IFLA_XFRM_IF_ID, nl.Uint32Attr(xfrmi.Ifid)) - + if xfrmi.Ifid != 0 { + data.AddRtAttr(nl.IFLA_XFRM_IF_ID, nl.Uint32Attr(xfrmi.Ifid)) + } } func parseXfrmiData(link Link, data []syscall.NetlinkRouteAttr) { @@ -2876,8 +3721,7 @@ func parseXfrmiData(link Link, data []syscall.NetlinkRouteAttr) { } } -// LinkSetBondSlave add slave to bond link via ioctl interface. -func LinkSetBondSlave(link Link, master *Bond) error { +func ioctlBondSlave(cmd uintptr, link Link, master *Bond) error { fd, err := getSocketUDP() if err != nil { return err @@ -2885,10 +3729,38 @@ func LinkSetBondSlave(link Link, master *Bond) error { defer syscall.Close(fd) ifreq := newIocltSlaveReq(link.Attrs().Name, master.Attrs().Name) - - _, _, errno := syscall.Syscall(syscall.SYS_IOCTL, uintptr(fd), unix.SIOCBONDENSLAVE, uintptr(unsafe.Pointer(ifreq))) + _, _, errno := syscall.Syscall(syscall.SYS_IOCTL, uintptr(fd), cmd, uintptr(unsafe.Pointer(ifreq))) if errno != 0 { - return fmt.Errorf("Failed to enslave %q to %q, errno=%v", link.Attrs().Name, master.Attrs().Name, errno) + return fmt.Errorf("errno=%v", errno) + } + return nil +} + +// LinkSetBondSlaveActive sets specified slave to ACTIVE in an `active-backup` bond link via ioctl interface. +// +// Multiple calls keeps the status unchanged(shown in the unit test). +func LinkSetBondSlaveActive(link Link, master *Bond) error { + err := ioctlBondSlave(unix.SIOCBONDCHANGEACTIVE, link, master) + if err != nil { + return fmt.Errorf("Failed to set slave %q active in %q, %v", link.Attrs().Name, master.Attrs().Name, err) + } + return nil +} + +// LinkSetBondSlave add slave to bond link via ioctl interface. +func LinkSetBondSlave(link Link, master *Bond) error { + err := ioctlBondSlave(unix.SIOCBONDENSLAVE, link, master) + if err != nil { + return fmt.Errorf("Failed to enslave %q to %q, %v", link.Attrs().Name, master.Attrs().Name, err) + } + return nil +} + +// LinkSetBondSlave removes specified slave from bond link via ioctl interface. +func LinkDelBondSlave(link Link, master *Bond) error { + err := ioctlBondSlave(unix.SIOCBONDRELEASE, link, master) + if err != nil { + return fmt.Errorf("Failed to del slave %q from %q, %v", link.Attrs().Name, master.Attrs().Name, err) } return nil } @@ -3010,9 +3882,86 @@ func parseIPoIBData(link Link, data []syscall.NetlinkRouteAttr) { } } +func parseCanData(link Link, data []syscall.NetlinkRouteAttr) { + can := link.(*Can) + for _, datum := range data { + + switch datum.Attr.Type { + case nl.IFLA_CAN_BITTIMING: + can.BitRate = native.Uint32(datum.Value) + can.SamplePoint = native.Uint32(datum.Value[4:]) + can.TimeQuanta = native.Uint32(datum.Value[8:]) + can.PropagationSegment = native.Uint32(datum.Value[12:]) + can.PhaseSegment1 = native.Uint32(datum.Value[16:]) + can.PhaseSegment2 = native.Uint32(datum.Value[20:]) + can.SyncJumpWidth = native.Uint32(datum.Value[24:]) + can.BitRatePreScaler = native.Uint32(datum.Value[28:]) + case nl.IFLA_CAN_BITTIMING_CONST: + can.Name = string(datum.Value[:16]) + can.TimeSegment1Min = native.Uint32(datum.Value[16:]) + can.TimeSegment1Max = native.Uint32(datum.Value[20:]) + can.TimeSegment2Min = native.Uint32(datum.Value[24:]) + can.TimeSegment2Max = native.Uint32(datum.Value[28:]) + can.SyncJumpWidthMax = native.Uint32(datum.Value[32:]) + can.BitRatePreScalerMin = native.Uint32(datum.Value[36:]) + can.BitRatePreScalerMax = native.Uint32(datum.Value[40:]) + can.BitRatePreScalerInc = native.Uint32(datum.Value[44:]) + case nl.IFLA_CAN_CLOCK: + can.ClockFrequency = native.Uint32(datum.Value) + case nl.IFLA_CAN_STATE: + can.State = native.Uint32(datum.Value) + case nl.IFLA_CAN_CTRLMODE: + can.Mask = native.Uint32(datum.Value) + can.Flags = native.Uint32(datum.Value[4:]) + case nl.IFLA_CAN_BERR_COUNTER: + can.TxError = native.Uint16(datum.Value) + can.RxError = native.Uint16(datum.Value[2:]) + case nl.IFLA_CAN_RESTART_MS: + can.RestartMs = native.Uint32(datum.Value) + case nl.IFLA_CAN_DATA_BITTIMING_CONST: + case nl.IFLA_CAN_RESTART: + case nl.IFLA_CAN_DATA_BITTIMING: + case nl.IFLA_CAN_TERMINATION: + case nl.IFLA_CAN_TERMINATION_CONST: + case nl.IFLA_CAN_BITRATE_CONST: + case nl.IFLA_CAN_DATA_BITRATE_CONST: + case nl.IFLA_CAN_BITRATE_MAX: + } + } +} + func addIPoIBAttrs(ipoib *IPoIB, linkInfo *nl.RtAttr) { data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) data.AddRtAttr(nl.IFLA_IPOIB_PKEY, nl.Uint16Attr(uint16(ipoib.Pkey))) data.AddRtAttr(nl.IFLA_IPOIB_MODE, nl.Uint16Attr(uint16(ipoib.Mode))) data.AddRtAttr(nl.IFLA_IPOIB_UMCAST, nl.Uint16Attr(uint16(ipoib.Umcast))) } + +func addBareUDPAttrs(bareudp *BareUDP, linkInfo *nl.RtAttr) { + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) + + data.AddRtAttr(nl.IFLA_BAREUDP_PORT, nl.Uint16Attr(nl.Swap16(bareudp.Port))) + data.AddRtAttr(nl.IFLA_BAREUDP_ETHERTYPE, nl.Uint16Attr(nl.Swap16(bareudp.EtherType))) + if bareudp.SrcPortMin != 0 { + data.AddRtAttr(nl.IFLA_BAREUDP_SRCPORT_MIN, nl.Uint16Attr(bareudp.SrcPortMin)) + } + if bareudp.MultiProto { + data.AddRtAttr(nl.IFLA_BAREUDP_MULTIPROTO_MODE, []byte{}) + } +} + +func parseBareUDPData(link Link, data []syscall.NetlinkRouteAttr) { + bareudp := link.(*BareUDP) + for _, attr := range data { + switch attr.Attr.Type { + case nl.IFLA_BAREUDP_PORT: + bareudp.Port = binary.BigEndian.Uint16(attr.Value) + case nl.IFLA_BAREUDP_ETHERTYPE: + bareudp.EtherType = binary.BigEndian.Uint16(attr.Value) + case nl.IFLA_BAREUDP_SRCPORT_MIN: + bareudp.SrcPortMin = native.Uint16(attr.Value) + case nl.IFLA_BAREUDP_MULTIPROTO_MODE: + bareudp.MultiProto = true + } + } +} diff --git a/vendor/github.com/vishvananda/netlink/neigh.go b/vendor/github.com/vishvananda/netlink/neigh.go index 379e5655f..32d722e88 100644 --- a/vendor/github.com/vishvananda/netlink/neigh.go +++ b/vendor/github.com/vishvananda/netlink/neigh.go @@ -12,6 +12,7 @@ type Neigh struct { State int Type int Flags int + FlagsExt int IP net.IP HardwareAddr net.HardwareAddr LLIPAddr net.IP //Used in the case of NHRP diff --git a/vendor/github.com/vishvananda/netlink/neigh_linux.go b/vendor/github.com/vishvananda/netlink/neigh_linux.go index cb3b55d35..2d93044a6 100644 --- a/vendor/github.com/vishvananda/netlink/neigh_linux.go +++ b/vendor/github.com/vishvananda/netlink/neigh_linux.go @@ -24,7 +24,11 @@ const ( NDA_MASTER NDA_LINK_NETNSID NDA_SRC_VNI - NDA_MAX = NDA_SRC_VNI + NDA_PROTOCOL + NDA_NH_ID + NDA_FDB_EXT_ATTRS + NDA_FLAGS_EXT + NDA_MAX = NDA_FLAGS_EXT ) // Neighbor Cache Entry States. @@ -42,11 +46,19 @@ const ( // Neighbor Flags const ( - NTF_USE = 0x01 - NTF_SELF = 0x02 - NTF_MASTER = 0x04 - NTF_PROXY = 0x08 - NTF_ROUTER = 0x80 + NTF_USE = 0x01 + NTF_SELF = 0x02 + NTF_MASTER = 0x04 + NTF_PROXY = 0x08 + NTF_EXT_LEARNED = 0x10 + NTF_OFFLOADED = 0x20 + NTF_STICKY = 0x40 + NTF_ROUTER = 0x80 +) + +// Extended Neighbor Flags +const ( + NTF_EXT_MANAGED = 0x00000001 ) // Ndmsg is for adding, removing or receiving information about a neighbor table entry @@ -162,11 +174,16 @@ func neighHandle(neigh *Neigh, req *nl.NetlinkRequest) error { if neigh.LLIPAddr != nil { llIPData := nl.NewRtAttr(NDA_LLADDR, neigh.LLIPAddr.To4()) req.AddData(llIPData) - } else if neigh.Flags != NTF_PROXY || neigh.HardwareAddr != nil { + } else if neigh.HardwareAddr != nil { hwData := nl.NewRtAttr(NDA_LLADDR, []byte(neigh.HardwareAddr)) req.AddData(hwData) } + if neigh.FlagsExt != 0 { + flagsExtData := nl.NewRtAttr(NDA_FLAGS_EXT, nl.Uint32Attr(uint32(neigh.FlagsExt))) + req.AddData(flagsExtData) + } + if neigh.Vlan != 0 { vlanData := nl.NewRtAttr(NDA_VLAN, nl.Uint16Attr(uint16(neigh.Vlan))) req.AddData(vlanData) @@ -243,6 +260,18 @@ func (h *Handle) NeighListExecute(msg Ndmsg) ([]Neigh, error) { // Ignore messages from other interfaces continue } + if msg.Family != 0 && ndm.Family != msg.Family { + continue + } + if msg.State != 0 && ndm.State != msg.State { + continue + } + if msg.Type != 0 && ndm.Type != msg.Type { + continue + } + if msg.Flags != 0 && ndm.Flags != msg.Flags { + continue + } neigh, err := NeighDeserialize(m) if err != nil { @@ -293,6 +322,8 @@ func NeighDeserialize(m []byte) (*Neigh, error) { } else { neigh.HardwareAddr = net.HardwareAddr(attr.Value) } + case NDA_FLAGS_EXT: + neigh.FlagsExt = int(native.Uint32(attr.Value[0:4])) case NDA_VLAN: neigh.Vlan = int(native.Uint16(attr.Value[0:2])) case NDA_VNI: @@ -308,13 +339,13 @@ func NeighDeserialize(m []byte) (*Neigh, error) { // NeighSubscribe takes a chan down which notifications will be sent // when neighbors are added or deleted. Close the 'done' chan to stop subscription. func NeighSubscribe(ch chan<- NeighUpdate, done <-chan struct{}) error { - return neighSubscribeAt(netns.None(), netns.None(), ch, done, nil, false) + return neighSubscribeAt(netns.None(), netns.None(), ch, done, nil, false, 0, nil, false) } // NeighSubscribeAt works like NeighSubscribe plus it allows the caller // to choose the network namespace in which to subscribe (ns). func NeighSubscribeAt(ns netns.NsHandle, ch chan<- NeighUpdate, done <-chan struct{}) error { - return neighSubscribeAt(ns, netns.None(), ch, done, nil, false) + return neighSubscribeAt(ns, netns.None(), ch, done, nil, false, 0, nil, false) } // NeighSubscribeOptions contains a set of options to use with @@ -323,6 +354,11 @@ type NeighSubscribeOptions struct { Namespace *netns.NsHandle ErrorCallback func(error) ListExisting bool + + // max size is based on value of /proc/sys/net/core/rmem_max + ReceiveBufferSize int + ReceiveBufferForceSize bool + ReceiveTimeout *unix.Timeval } // NeighSubscribeWithOptions work like NeighSubscribe but enable to @@ -333,16 +369,17 @@ func NeighSubscribeWithOptions(ch chan<- NeighUpdate, done <-chan struct{}, opti none := netns.None() options.Namespace = &none } - return neighSubscribeAt(*options.Namespace, netns.None(), ch, done, options.ErrorCallback, options.ListExisting) + return neighSubscribeAt(*options.Namespace, netns.None(), ch, done, options.ErrorCallback, options.ListExisting, + options.ReceiveBufferSize, options.ReceiveTimeout, options.ReceiveBufferForceSize) } -func neighSubscribeAt(newNs, curNs netns.NsHandle, ch chan<- NeighUpdate, done <-chan struct{}, cberr func(error), listExisting bool) error { +func neighSubscribeAt(newNs, curNs netns.NsHandle, ch chan<- NeighUpdate, done <-chan struct{}, cberr func(error), listExisting bool, + rcvbuf int, rcvTimeout *unix.Timeval, rcvbufForce bool) error { s, err := nl.SubscribeAt(newNs, curNs, unix.NETLINK_ROUTE, unix.RTNLGRP_NEIGH) makeRequest := func(family int) error { - req := pkgHandle.newNetlinkRequest(unix.RTM_GETNEIGH, - unix.NLM_F_DUMP) - infmsg := nl.NewIfInfomsg(family) - req.AddData(infmsg) + req := pkgHandle.newNetlinkRequest(unix.RTM_GETNEIGH, unix.NLM_F_DUMP) + ndmsg := &Ndmsg{Family: uint8(family)} + req.AddData(ndmsg) if err := s.Send(req); err != nil { return err } @@ -351,6 +388,17 @@ func neighSubscribeAt(newNs, curNs netns.NsHandle, ch chan<- NeighUpdate, done < if err != nil { return err } + if rcvTimeout != nil { + if err := s.SetReceiveTimeout(rcvTimeout); err != nil { + return err + } + } + if rcvbuf != 0 { + err = s.SetReceiveBufferSize(rcvbuf, rcvbufForce) + if err != nil { + return err + } + } if done != nil { go func() { <-done @@ -396,13 +444,12 @@ func neighSubscribeAt(newNs, curNs netns.NsHandle, ch chan<- NeighUpdate, done < continue } if m.Header.Type == unix.NLMSG_ERROR { - native := nl.NativeEndian() - error := int32(native.Uint32(m.Data[0:4])) - if error == 0 { + nError := int32(native.Uint32(m.Data[0:4])) + if nError == 0 { continue } if cberr != nil { - cberr(syscall.Errno(-error)) + cberr(syscall.Errno(-nError)) } return } diff --git a/vendor/github.com/vishvananda/netlink/netlink_unspecified.go b/vendor/github.com/vishvananda/netlink/netlink_unspecified.go index 42d3acf91..da12c42a5 100644 --- a/vendor/github.com/vishvananda/netlink/netlink_unspecified.go +++ b/vendor/github.com/vishvananda/netlink/netlink_unspecified.go @@ -16,7 +16,7 @@ func LinkSetMTU(link Link, mtu int) error { return ErrNotImplemented } -func LinkSetMaster(link Link, master *Bridge) error { +func LinkSetMaster(link Link, master Link) error { return ErrNotImplemented } @@ -52,6 +52,10 @@ func LinkSetVfVlanQos(link Link, vf, vlan, qos int) error { return ErrNotImplemented } +func LinkSetVfVlanQosProto(link Link, vf, vlan, qos, proto int) error { + return ErrNotImplemented +} + func LinkSetVfTxRate(link Link, vf, rate int) error { return ErrNotImplemented } @@ -72,6 +76,10 @@ func LinkSetXdpFd(link Link, fd int) error { return ErrNotImplemented } +func LinkSetXdpFdWithFlags(link Link, fd, flags int) error { + return ErrNotImplemented +} + func LinkSetARPOff(link Link) error { return ErrNotImplemented } @@ -120,6 +128,22 @@ func LinkSetTxQLen(link Link, qlen int) error { return ErrNotImplemented } +func LinkSetGSOMaxSize(link Link, maxSize int) error { + return ErrNotImplemented +} + +func LinkSetGROMaxSize(link Link, maxSize int) error { + return ErrNotImplemented +} + +func LinkSetGSOIPv4MaxSize(link Link, maxSize int) error { + return ErrNotImplemented +} + +func LinkSetGROIPv4MaxSize(link Link, maxSize int) error { + return ErrNotImplemented +} + func LinkAdd(link Link) error { return ErrNotImplemented } @@ -176,14 +200,34 @@ func RouteAdd(route *Route) error { return ErrNotImplemented } +func RouteAppend(route *Route) error { + return ErrNotImplemented +} + +func RouteChange(route *Route) error { + return ErrNotImplemented +} + func RouteDel(route *Route) error { return ErrNotImplemented } +func RouteGet(destination net.IP) ([]Route, error) { + return nil, ErrNotImplemented +} + func RouteList(link Link, family int) ([]Route, error) { return nil, ErrNotImplemented } +func RouteListFiltered(family int, filter *Route, filterMask uint64) ([]Route, error) { + return nil, ErrNotImplemented +} + +func RouteReplace(route *Route) error { + return ErrNotImplemented +} + func XfrmPolicyAdd(policy *XfrmPolicy) error { return ErrNotImplemented } @@ -196,6 +240,10 @@ func XfrmPolicyList(family int) ([]XfrmPolicy, error) { return nil, ErrNotImplemented } +func XfrmPolicyGet(policy *XfrmPolicy) (*XfrmPolicy, error) { + return nil, ErrNotImplemented +} + func XfrmStateAdd(policy *XfrmState) error { return ErrNotImplemented } @@ -235,3 +283,7 @@ func NeighDeserialize(m []byte) (*Neigh, error) { func SocketGet(local, remote net.Addr) (*Socket, error) { return nil, ErrNotImplemented } + +func SocketDestroy(local, remote net.Addr) (*Socket, error) { + return nil, ErrNotImplemented +} diff --git a/vendor/github.com/vishvananda/netlink/netns_linux.go b/vendor/github.com/vishvananda/netlink/netns_linux.go index 77cf6f469..2eb29c7ce 100644 --- a/vendor/github.com/vishvananda/netlink/netns_linux.go +++ b/vendor/github.com/vishvananda/netlink/netns_linux.go @@ -87,7 +87,7 @@ func (h *Handle) getNetNsId(attrType int, val uint32) (int, error) { rtgen := nl.NewRtGenMsg() req.AddData(rtgen) - b := make([]byte, 4, 4) + b := make([]byte, 4) native.PutUint32(b, val) attr := nl.NewRtAttr(attrType, b) req.AddData(attr) @@ -126,12 +126,12 @@ func (h *Handle) setNetNsId(attrType int, val uint32, newnsid uint32) error { rtgen := nl.NewRtGenMsg() req.AddData(rtgen) - b := make([]byte, 4, 4) + b := make([]byte, 4) native.PutUint32(b, val) attr := nl.NewRtAttr(attrType, b) req.AddData(attr) - b1 := make([]byte, 4, 4) + b1 := make([]byte, 4) native.PutUint32(b1, newnsid) attr1 := nl.NewRtAttr(NETNSA_NSID, b1) req.AddData(attr1) diff --git a/vendor/github.com/vishvananda/netlink/nl/addr_linux.go b/vendor/github.com/vishvananda/netlink/nl/addr_linux.go index 50db3b4cd..6bea4ed02 100644 --- a/vendor/github.com/vishvananda/netlink/nl/addr_linux.go +++ b/vendor/github.com/vishvananda/netlink/nl/addr_linux.go @@ -54,24 +54,18 @@ func (msg *IfAddrmsg) Len() int { // __u32 tstamp; /* updated timestamp, hundredths of seconds */ // }; -const IFA_CACHEINFO = 6 -const SizeofIfaCacheInfo = 0x10 - type IfaCacheInfo struct { - IfaPrefered uint32 - IfaValid uint32 - Cstamp uint32 - Tstamp uint32 + unix.IfaCacheinfo } func (msg *IfaCacheInfo) Len() int { - return SizeofIfaCacheInfo + return unix.SizeofIfaCacheinfo } func DeserializeIfaCacheInfo(b []byte) *IfaCacheInfo { - return (*IfaCacheInfo)(unsafe.Pointer(&b[0:SizeofIfaCacheInfo][0])) + return (*IfaCacheInfo)(unsafe.Pointer(&b[0:unix.SizeofIfaCacheinfo][0])) } func (msg *IfaCacheInfo) Serialize() []byte { - return (*(*[SizeofIfaCacheInfo]byte)(unsafe.Pointer(msg)))[:] + return (*(*[unix.SizeofIfaCacheinfo]byte)(unsafe.Pointer(msg)))[:] } diff --git a/vendor/github.com/vishvananda/netlink/nl/conntrack_linux.go b/vendor/github.com/vishvananda/netlink/nl/conntrack_linux.go index 79d2b6b89..6989d1edc 100644 --- a/vendor/github.com/vishvananda/netlink/nl/conntrack_linux.go +++ b/vendor/github.com/vishvananda/netlink/nl/conntrack_linux.go @@ -15,6 +15,38 @@ var L4ProtoMap = map[uint8]string{ 17: "udp", } +// From https://git.netfilter.org/libnetfilter_conntrack/tree/include/libnetfilter_conntrack/libnetfilter_conntrack_tcp.h +// enum tcp_state { +// TCP_CONNTRACK_NONE, +// TCP_CONNTRACK_SYN_SENT, +// TCP_CONNTRACK_SYN_RECV, +// TCP_CONNTRACK_ESTABLISHED, +// TCP_CONNTRACK_FIN_WAIT, +// TCP_CONNTRACK_CLOSE_WAIT, +// TCP_CONNTRACK_LAST_ACK, +// TCP_CONNTRACK_TIME_WAIT, +// TCP_CONNTRACK_CLOSE, +// TCP_CONNTRACK_LISTEN, /* obsolete */ +// #define TCP_CONNTRACK_SYN_SENT2 TCP_CONNTRACK_LISTEN +// TCP_CONNTRACK_MAX, +// TCP_CONNTRACK_IGNORE +// }; +const ( + TCP_CONNTRACK_NONE = 0 + TCP_CONNTRACK_SYN_SENT = 1 + TCP_CONNTRACK_SYN_RECV = 2 + TCP_CONNTRACK_ESTABLISHED = 3 + TCP_CONNTRACK_FIN_WAIT = 4 + TCP_CONNTRACK_CLOSE_WAIT = 5 + TCP_CONNTRACK_LAST_ACK = 6 + TCP_CONNTRACK_TIME_WAIT = 7 + TCP_CONNTRACK_CLOSE = 8 + TCP_CONNTRACK_LISTEN = 9 + TCP_CONNTRACK_SYN_SENT2 = 9 + TCP_CONNTRACK_MAX = 10 + TCP_CONNTRACK_IGNORE = 11 +) + // All the following constants are coming from: // https://github.com/torvalds/linux/blob/master/include/uapi/linux/netfilter/nfnetlink_conntrack.h @@ -31,6 +63,7 @@ var L4ProtoMap = map[uint8]string{ // IPCTNL_MSG_MAX // }; const ( + IPCTNL_MSG_CT_NEW = 0 IPCTNL_MSG_CT_GET = 1 IPCTNL_MSG_CT_DELETE = 2 ) @@ -40,9 +73,11 @@ const ( NFNETLINK_V0 = 0 ) -// #define NLA_F_NESTED (1 << 15) const ( - NLA_F_NESTED = (1 << 15) + NLA_F_NESTED uint16 = (1 << 15) // #define NLA_F_NESTED (1 << 15) + NLA_F_NET_BYTEORDER uint16 = (1 << 14) // #define NLA_F_NESTED (1 << 14) + NLA_TYPE_MASK = ^(NLA_F_NESTED | NLA_F_NET_BYTEORDER) + NLA_ALIGNTO uint16 = 4 // #define NLA_ALIGNTO 4 ) // enum ctattr_type { @@ -86,7 +121,10 @@ const ( CTA_COUNTERS_REPLY = 10 CTA_USE = 11 CTA_ID = 12 + CTA_ZONE = 18 CTA_TIMESTAMP = 20 + CTA_LABELS = 22 + CTA_LABELS_MASK = 23 ) // enum ctattr_tuple { @@ -147,7 +185,10 @@ const ( // }; // #define CTA_PROTOINFO_MAX (__CTA_PROTOINFO_MAX - 1) const ( + CTA_PROTOINFO_UNSPEC = 0 CTA_PROTOINFO_TCP = 1 + CTA_PROTOINFO_DCCP = 2 + CTA_PROTOINFO_SCTP = 3 ) // enum ctattr_protoinfo_tcp { diff --git a/vendor/github.com/vishvananda/netlink/nl/devlink_linux.go b/vendor/github.com/vishvananda/netlink/nl/devlink_linux.go index db66faaad..956367b29 100644 --- a/vendor/github.com/vishvananda/netlink/nl/devlink_linux.go +++ b/vendor/github.com/vishvananda/netlink/nl/devlink_linux.go @@ -9,17 +9,56 @@ const ( ) const ( - DEVLINK_CMD_GET = 1 - DEVLINK_CMD_ESWITCH_GET = 29 - DEVLINK_CMD_ESWITCH_SET = 30 + DEVLINK_CMD_GET = 1 + DEVLINK_CMD_PORT_GET = 5 + DEVLINK_CMD_PORT_SET = 6 + DEVLINK_CMD_PORT_NEW = 7 + DEVLINK_CMD_PORT_DEL = 8 + DEVLINK_CMD_ESWITCH_GET = 29 + DEVLINK_CMD_ESWITCH_SET = 30 + DEVLINK_CMD_RESOURCE_DUMP = 36 + DEVLINK_CMD_PARAM_GET = 38 + DEVLINK_CMD_PARAM_SET = 39 + DEVLINK_CMD_INFO_GET = 51 ) const ( - DEVLINK_ATTR_BUS_NAME = 1 - DEVLINK_ATTR_DEV_NAME = 2 - DEVLINK_ATTR_ESWITCH_MODE = 25 - DEVLINK_ATTR_ESWITCH_INLINE_MODE = 26 - DEVLINK_ATTR_ESWITCH_ENCAP_MODE = 62 + DEVLINK_ATTR_BUS_NAME = 1 + DEVLINK_ATTR_DEV_NAME = 2 + DEVLINK_ATTR_PORT_INDEX = 3 + DEVLINK_ATTR_PORT_TYPE = 4 + DEVLINK_ATTR_PORT_NETDEV_IFINDEX = 6 + DEVLINK_ATTR_PORT_NETDEV_NAME = 7 + DEVLINK_ATTR_PORT_IBDEV_NAME = 8 + DEVLINK_ATTR_ESWITCH_MODE = 25 + DEVLINK_ATTR_ESWITCH_INLINE_MODE = 26 + DEVLINK_ATTR_ESWITCH_ENCAP_MODE = 62 + DEVLINK_ATTR_RESOURCE_LIST = 63 /* nested */ + DEVLINK_ATTR_RESOURCE = 64 /* nested */ + DEVLINK_ATTR_RESOURCE_NAME = 65 /* string */ + DEVLINK_ATTR_RESOURCE_ID = 66 /* u64 */ + DEVLINK_ATTR_RESOURCE_SIZE = 67 /* u64 */ + DEVLINK_ATTR_RESOURCE_SIZE_NEW = 68 /* u64 */ + DEVLINK_ATTR_RESOURCE_SIZE_VALID = 69 /* u8 */ + DEVLINK_ATTR_RESOURCE_SIZE_MIN = 70 /* u64 */ + DEVLINK_ATTR_RESOURCE_SIZE_MAX = 71 /* u64 */ + DEVLINK_ATTR_RESOURCE_SIZE_GRAN = 72 /* u64 */ + DEVLINK_ATTR_RESOURCE_UNIT = 73 /* u8 */ + DEVLINK_ATTR_RESOURCE_OCC = 74 /* u64 */ + DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_ID = 75 /* u64 */ + DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_UNITS = 76 /* u64 */ + DEVLINK_ATTR_PORT_FLAVOUR = 77 + DEVLINK_ATTR_INFO_DRIVER_NAME = 98 + DEVLINK_ATTR_INFO_SERIAL_NUMBER = 99 + DEVLINK_ATTR_INFO_VERSION_FIXED = 100 + DEVLINK_ATTR_INFO_VERSION_RUNNING = 101 + DEVLINK_ATTR_INFO_VERSION_STORED = 102 + DEVLINK_ATTR_INFO_VERSION_NAME = 103 + DEVLINK_ATTR_INFO_VERSION_VALUE = 104 + DEVLINK_ATTR_PORT_PCI_PF_NUMBER = 127 + DEVLINK_ATTR_PORT_FUNCTION = 145 + DEVLINK_ATTR_PORT_CONTROLLER_NUMBER = 150 + DEVLINK_ATTR_PORT_PCI_SF_NUMBER = 164 ) const ( @@ -38,3 +77,66 @@ const ( DEVLINK_ESWITCH_ENCAP_MODE_NONE = 0 DEVLINK_ESWITCH_ENCAP_MODE_BASIC = 1 ) + +const ( + DEVLINK_PORT_FLAVOUR_PHYSICAL = 0 + DEVLINK_PORT_FLAVOUR_CPU = 1 + DEVLINK_PORT_FLAVOUR_DSA = 2 + DEVLINK_PORT_FLAVOUR_PCI_PF = 3 + DEVLINK_PORT_FLAVOUR_PCI_VF = 4 + DEVLINK_PORT_FLAVOUR_VIRTUAL = 5 + DEVLINK_PORT_FLAVOUR_UNUSED = 6 + DEVLINK_PORT_FLAVOUR_PCI_SF = 7 +) + +const ( + DEVLINK_PORT_TYPE_NOTSET = 0 + DEVLINK_PORT_TYPE_AUTO = 1 + DEVLINK_PORT_TYPE_ETH = 2 + DEVLINK_PORT_TYPE_IB = 3 +) + +const ( + DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR = 1 + DEVLINK_PORT_FN_ATTR_STATE = 2 + DEVLINK_PORT_FN_ATTR_OPSTATE = 3 +) + +const ( + DEVLINK_PORT_FN_STATE_INACTIVE = 0 + DEVLINK_PORT_FN_STATE_ACTIVE = 1 +) + +const ( + DEVLINK_PORT_FN_OPSTATE_DETACHED = 0 + DEVLINK_PORT_FN_OPSTATE_ATTACHED = 1 +) + +const ( + DEVLINK_RESOURCE_UNIT_ENTRY uint8 = 0 +) + +const ( + DEVLINK_ATTR_PARAM = iota + 80 /* nested */ + DEVLINK_ATTR_PARAM_NAME /* string */ + DEVLINK_ATTR_PARAM_GENERIC /* flag */ + DEVLINK_ATTR_PARAM_TYPE /* u8 */ + DEVLINK_ATTR_PARAM_VALUES_LIST /* nested */ + DEVLINK_ATTR_PARAM_VALUE /* nested */ + DEVLINK_ATTR_PARAM_VALUE_DATA /* dynamic */ + DEVLINK_ATTR_PARAM_VALUE_CMODE /* u8 */ +) + +const ( + DEVLINK_PARAM_TYPE_U8 = 1 + DEVLINK_PARAM_TYPE_U16 = 2 + DEVLINK_PARAM_TYPE_U32 = 3 + DEVLINK_PARAM_TYPE_STRING = 5 + DEVLINK_PARAM_TYPE_BOOL = 6 +) + +const ( + DEVLINK_PARAM_CMODE_RUNTIME = iota + DEVLINK_PARAM_CMODE_DRIVERINIT + DEVLINK_PARAM_CMODE_PERMANENT +) diff --git a/vendor/github.com/vishvananda/netlink/nl/ip6tnl_linux.go b/vendor/github.com/vishvananda/netlink/nl/ip6tnl_linux.go new file mode 100644 index 000000000..d5dd69e0c --- /dev/null +++ b/vendor/github.com/vishvananda/netlink/nl/ip6tnl_linux.go @@ -0,0 +1,21 @@ +package nl + +// id's of route attribute from https://elixir.bootlin.com/linux/v5.17.3/source/include/uapi/linux/lwtunnel.h#L38 +// the value's size are specified in https://elixir.bootlin.com/linux/v5.17.3/source/net/ipv4/ip_tunnel_core.c#L928 + +const ( + LWTUNNEL_IP6_UNSPEC = iota + LWTUNNEL_IP6_ID + LWTUNNEL_IP6_DST + LWTUNNEL_IP6_SRC + LWTUNNEL_IP6_HOPLIMIT + LWTUNNEL_IP6_TC + LWTUNNEL_IP6_FLAGS + LWTUNNEL_IP6_PAD // not implemented + LWTUNNEL_IP6_OPTS // not implemented + __LWTUNNEL_IP6_MAX +) + + + + diff --git a/vendor/github.com/vishvananda/netlink/nl/ipset_linux.go b/vendor/github.com/vishvananda/netlink/nl/ipset_linux.go new file mode 100644 index 000000000..89dd009df --- /dev/null +++ b/vendor/github.com/vishvananda/netlink/nl/ipset_linux.go @@ -0,0 +1,227 @@ +package nl + +import ( + "strconv" + + "golang.org/x/sys/unix" +) + +const ( + /* The protocol version */ + IPSET_PROTOCOL = 6 + + /* The max length of strings including NUL: set and type identifiers */ + IPSET_MAXNAMELEN = 32 + + /* The maximum permissible comment length we will accept over netlink */ + IPSET_MAX_COMMENT_SIZE = 255 +) + +const ( + _ = iota + IPSET_CMD_PROTOCOL /* 1: Return protocol version */ + IPSET_CMD_CREATE /* 2: Create a new (empty) set */ + IPSET_CMD_DESTROY /* 3: Destroy a (empty) set */ + IPSET_CMD_FLUSH /* 4: Remove all elements from a set */ + IPSET_CMD_RENAME /* 5: Rename a set */ + IPSET_CMD_SWAP /* 6: Swap two sets */ + IPSET_CMD_LIST /* 7: List sets */ + IPSET_CMD_SAVE /* 8: Save sets */ + IPSET_CMD_ADD /* 9: Add an element to a set */ + IPSET_CMD_DEL /* 10: Delete an element from a set */ + IPSET_CMD_TEST /* 11: Test an element in a set */ + IPSET_CMD_HEADER /* 12: Get set header data only */ + IPSET_CMD_TYPE /* 13: Get set type */ +) + +/* Attributes at command level */ +const ( + _ = iota + IPSET_ATTR_PROTOCOL /* 1: Protocol version */ + IPSET_ATTR_SETNAME /* 2: Name of the set */ + IPSET_ATTR_TYPENAME /* 3: Typename */ + IPSET_ATTR_REVISION /* 4: Settype revision */ + IPSET_ATTR_FAMILY /* 5: Settype family */ + IPSET_ATTR_FLAGS /* 6: Flags at command level */ + IPSET_ATTR_DATA /* 7: Nested attributes */ + IPSET_ATTR_ADT /* 8: Multiple data containers */ + IPSET_ATTR_LINENO /* 9: Restore lineno */ + IPSET_ATTR_PROTOCOL_MIN /* 10: Minimal supported version number */ + + IPSET_ATTR_SETNAME2 = IPSET_ATTR_TYPENAME /* Setname at rename/swap */ + IPSET_ATTR_REVISION_MIN = IPSET_ATTR_PROTOCOL_MIN /* type rev min */ +) + +/* CADT specific attributes */ +const ( + IPSET_ATTR_IP = 1 + IPSET_ATTR_IP_FROM = 1 + IPSET_ATTR_IP_TO = 2 + IPSET_ATTR_CIDR = 3 + IPSET_ATTR_PORT = 4 + IPSET_ATTR_PORT_FROM = 4 + IPSET_ATTR_PORT_TO = 5 + IPSET_ATTR_TIMEOUT = 6 + IPSET_ATTR_PROTO = 7 + IPSET_ATTR_CADT_FLAGS = 8 + IPSET_ATTR_CADT_LINENO = IPSET_ATTR_LINENO /* 9 */ + IPSET_ATTR_MARK = 10 + IPSET_ATTR_MARKMASK = 11 + + /* Reserve empty slots */ + IPSET_ATTR_CADT_MAX = 16 + + /* Create-only specific attributes */ + IPSET_ATTR_GC = 3 + iota + IPSET_ATTR_HASHSIZE + IPSET_ATTR_MAXELEM + IPSET_ATTR_NETMASK + IPSET_ATTR_PROBES + IPSET_ATTR_RESIZE + IPSET_ATTR_SIZE + + /* Kernel-only */ + IPSET_ATTR_ELEMENTS + IPSET_ATTR_REFERENCES + IPSET_ATTR_MEMSIZE + + SET_ATTR_CREATE_MAX +) + +const ( + IPSET_ATTR_IPADDR_IPV4 = 1 + IPSET_ATTR_IPADDR_IPV6 = 2 +) + +/* ADT specific attributes */ +const ( + IPSET_ATTR_ETHER = IPSET_ATTR_CADT_MAX + iota + 1 + IPSET_ATTR_NAME + IPSET_ATTR_NAMEREF + IPSET_ATTR_IP2 + IPSET_ATTR_CIDR2 + IPSET_ATTR_IP2_TO + IPSET_ATTR_IFACE + IPSET_ATTR_BYTES + IPSET_ATTR_PACKETS + IPSET_ATTR_COMMENT + IPSET_ATTR_SKBMARK + IPSET_ATTR_SKBPRIO + IPSET_ATTR_SKBQUEUE +) + +/* Flags at CADT attribute level, upper half of cmdattrs */ +const ( + IPSET_FLAG_BIT_BEFORE = 0 + IPSET_FLAG_BEFORE = (1 << IPSET_FLAG_BIT_BEFORE) + IPSET_FLAG_BIT_PHYSDEV = 1 + IPSET_FLAG_PHYSDEV = (1 << IPSET_FLAG_BIT_PHYSDEV) + IPSET_FLAG_BIT_NOMATCH = 2 + IPSET_FLAG_NOMATCH = (1 << IPSET_FLAG_BIT_NOMATCH) + IPSET_FLAG_BIT_WITH_COUNTERS = 3 + IPSET_FLAG_WITH_COUNTERS = (1 << IPSET_FLAG_BIT_WITH_COUNTERS) + IPSET_FLAG_BIT_WITH_COMMENT = 4 + IPSET_FLAG_WITH_COMMENT = (1 << IPSET_FLAG_BIT_WITH_COMMENT) + IPSET_FLAG_BIT_WITH_FORCEADD = 5 + IPSET_FLAG_WITH_FORCEADD = (1 << IPSET_FLAG_BIT_WITH_FORCEADD) + IPSET_FLAG_BIT_WITH_SKBINFO = 6 + IPSET_FLAG_WITH_SKBINFO = (1 << IPSET_FLAG_BIT_WITH_SKBINFO) + IPSET_FLAG_CADT_MAX = 15 +) + +const ( + IPSET_ERR_PRIVATE = 4096 + iota + IPSET_ERR_PROTOCOL + IPSET_ERR_FIND_TYPE + IPSET_ERR_MAX_SETS + IPSET_ERR_BUSY + IPSET_ERR_EXIST_SETNAME2 + IPSET_ERR_TYPE_MISMATCH + IPSET_ERR_EXIST + IPSET_ERR_INVALID_CIDR + IPSET_ERR_INVALID_NETMASK + IPSET_ERR_INVALID_FAMILY + IPSET_ERR_TIMEOUT + IPSET_ERR_REFERENCED + IPSET_ERR_IPADDR_IPV4 + IPSET_ERR_IPADDR_IPV6 + IPSET_ERR_COUNTER + IPSET_ERR_COMMENT + IPSET_ERR_INVALID_MARKMASK + IPSET_ERR_SKBINFO + + /* Type specific error codes */ + IPSET_ERR_TYPE_SPECIFIC = 4352 +) + +type IPSetError uintptr + +func (e IPSetError) Error() string { + switch int(e) { + case IPSET_ERR_PRIVATE: + return "private" + case IPSET_ERR_PROTOCOL: + return "invalid protocol" + case IPSET_ERR_FIND_TYPE: + return "invalid type" + case IPSET_ERR_MAX_SETS: + return "max sets reached" + case IPSET_ERR_BUSY: + return "busy" + case IPSET_ERR_EXIST_SETNAME2: + return "exist_setname2" + case IPSET_ERR_TYPE_MISMATCH: + return "type mismatch" + case IPSET_ERR_EXIST: + return "exist" + case IPSET_ERR_INVALID_CIDR: + return "invalid cidr" + case IPSET_ERR_INVALID_NETMASK: + return "invalid netmask" + case IPSET_ERR_INVALID_FAMILY: + return "invalid family" + case IPSET_ERR_TIMEOUT: + return "timeout" + case IPSET_ERR_REFERENCED: + return "referenced" + case IPSET_ERR_IPADDR_IPV4: + return "invalid ipv4 address" + case IPSET_ERR_IPADDR_IPV6: + return "invalid ipv6 address" + case IPSET_ERR_COUNTER: + return "invalid counter" + case IPSET_ERR_COMMENT: + return "invalid comment" + case IPSET_ERR_INVALID_MARKMASK: + return "invalid markmask" + case IPSET_ERR_SKBINFO: + return "skbinfo" + default: + return "errno " + strconv.Itoa(int(e)) + } +} + +func GetIpsetFlags(cmd int) int { + switch cmd { + case IPSET_CMD_CREATE: + return unix.NLM_F_REQUEST | unix.NLM_F_ACK | unix.NLM_F_CREATE + case IPSET_CMD_DESTROY, + IPSET_CMD_FLUSH, + IPSET_CMD_RENAME, + IPSET_CMD_SWAP, + IPSET_CMD_TEST: + return unix.NLM_F_REQUEST | unix.NLM_F_ACK + case IPSET_CMD_LIST, + IPSET_CMD_SAVE: + return unix.NLM_F_REQUEST | unix.NLM_F_ACK | unix.NLM_F_ROOT | unix.NLM_F_MATCH | unix.NLM_F_DUMP + case IPSET_CMD_ADD, + IPSET_CMD_DEL: + return unix.NLM_F_REQUEST | unix.NLM_F_ACK + case IPSET_CMD_HEADER, + IPSET_CMD_TYPE, + IPSET_CMD_PROTOCOL: + return unix.NLM_F_REQUEST + default: + return 0 + } +} diff --git a/vendor/github.com/vishvananda/netlink/nl/link_linux.go b/vendor/github.com/vishvananda/netlink/nl/link_linux.go index afb16a9c1..0b5be470c 100644 --- a/vendor/github.com/vishvananda/netlink/nl/link_linux.go +++ b/vendor/github.com/vishvananda/netlink/nl/link_linux.go @@ -1,6 +1,9 @@ package nl import ( + "bytes" + "encoding/binary" + "fmt" "unsafe" ) @@ -28,6 +31,16 @@ const ( IFLA_VLAN_MAX = IFLA_VLAN_PROTOCOL ) +const ( + IFLA_NETKIT_UNSPEC = iota + IFLA_NETKIT_PEER_INFO + IFLA_NETKIT_PRIMARY + IFLA_NETKIT_POLICY + IFLA_NETKIT_PEER_POLICY + IFLA_NETKIT_MODE + IFLA_NETKIT_MAX = IFLA_NETKIT_MODE +) + const ( VETH_INFO_UNSPEC = iota VETH_INFO_PEER @@ -83,7 +96,37 @@ const ( IFLA_BRPORT_PROXYARP IFLA_BRPORT_LEARNING_SYNC IFLA_BRPORT_PROXYARP_WIFI - IFLA_BRPORT_MAX = IFLA_BRPORT_PROXYARP_WIFI + IFLA_BRPORT_ROOT_ID + IFLA_BRPORT_BRIDGE_ID + IFLA_BRPORT_DESIGNATED_PORT + IFLA_BRPORT_DESIGNATED_COST + IFLA_BRPORT_ID + IFLA_BRPORT_NO + IFLA_BRPORT_TOPOLOGY_CHANGE_ACK + IFLA_BRPORT_CONFIG_PENDING + IFLA_BRPORT_MESSAGE_AGE_TIMER + IFLA_BRPORT_FORWARD_DELAY_TIMER + IFLA_BRPORT_HOLD_TIMER + IFLA_BRPORT_FLUSH + IFLA_BRPORT_MULTICAST_ROUTER + IFLA_BRPORT_PAD + IFLA_BRPORT_MCAST_FLOOD + IFLA_BRPORT_MCAST_TO_UCAST + IFLA_BRPORT_VLAN_TUNNEL + IFLA_BRPORT_BCAST_FLOOD + IFLA_BRPORT_GROUP_FWD_MASK + IFLA_BRPORT_NEIGH_SUPPRESS + IFLA_BRPORT_ISOLATED + IFLA_BRPORT_BACKUP_PORT + IFLA_BRPORT_MRP_RING_OPEN + IFLA_BRPORT_MRP_IN_OPEN + IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT + IFLA_BRPORT_MCAST_EHT_HOSTS_CNT + IFLA_BRPORT_LOCKED + IFLA_BRPORT_MAB + IFLA_BRPORT_MCAST_N_GROUPS + IFLA_BRPORT_MCAST_MAX_GROUPS + IFLA_BRPORT_MAX = IFLA_BRPORT_MCAST_MAX_GROUPS ) const ( @@ -101,7 +144,9 @@ const ( IFLA_MACVLAN_MACADDR IFLA_MACVLAN_MACADDR_DATA IFLA_MACVLAN_MACADDR_COUNT - IFLA_MACVLAN_MAX = IFLA_MACVLAN_FLAGS + IFLA_MACVLAN_BC_QUEUE_LEN + IFLA_MACVLAN_BC_QUEUE_LEN_USED + IFLA_MACVLAN_MAX = IFLA_MACVLAN_BC_QUEUE_LEN_USED ) const ( @@ -171,6 +216,25 @@ const ( IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE ) +const ( + IFLA_GENEVE_UNSPEC = iota + IFLA_GENEVE_ID // vni + IFLA_GENEVE_REMOTE + IFLA_GENEVE_TTL + IFLA_GENEVE_TOS + IFLA_GENEVE_PORT // destination port + IFLA_GENEVE_COLLECT_METADATA + IFLA_GENEVE_REMOTE6 + IFLA_GENEVE_UDP_CSUM + IFLA_GENEVE_UDP_ZERO_CSUM6_TX + IFLA_GENEVE_UDP_ZERO_CSUM6_RX + IFLA_GENEVE_LABEL + IFLA_GENEVE_TTL_INHERIT + IFLA_GENEVE_DF + IFLA_GENEVE_INNER_PROTO_INHERIT + IFLA_GENEVE_MAX = IFLA_GENEVE_INNER_PROTO_INHERIT +) + const ( IFLA_GRE_UNSPEC = iota IFLA_GRE_LINK @@ -226,7 +290,15 @@ const ( IFLA_VF_TRUST /* Trust state of VF */ IFLA_VF_IB_NODE_GUID /* VF Infiniband node GUID */ IFLA_VF_IB_PORT_GUID /* VF Infiniband port GUID */ - IFLA_VF_MAX = IFLA_VF_IB_PORT_GUID + IFLA_VF_VLAN_LIST /* nested list of vlans, option for QinQ */ + + IFLA_VF_MAX = IFLA_VF_IB_PORT_GUID +) + +const ( + IFLA_VF_VLAN_INFO_UNSPEC = iota + IFLA_VF_VLAN_INFO /* VLAN ID, QoS and VLAN protocol */ + __IFLA_VF_VLAN_INFO_MAX ) const ( @@ -243,12 +315,15 @@ const ( IFLA_VF_STATS_TX_BYTES IFLA_VF_STATS_BROADCAST IFLA_VF_STATS_MULTICAST - IFLA_VF_STATS_MAX = IFLA_VF_STATS_MULTICAST + IFLA_VF_STATS_RX_DROPPED + IFLA_VF_STATS_TX_DROPPED + IFLA_VF_STATS_MAX = IFLA_VF_STATS_TX_DROPPED ) const ( SizeofVfMac = 0x24 SizeofVfVlan = 0x0c + SizeofVfVlanInfo = 0x10 SizeofVfTxRate = 0x08 SizeofVfRate = 0x0c SizeofVfSpoofchk = 0x08 @@ -304,6 +379,49 @@ func (msg *VfVlan) Serialize() []byte { return (*(*[SizeofVfVlan]byte)(unsafe.Pointer(msg)))[:] } +func DeserializeVfVlanList(b []byte) ([]*VfVlanInfo, error) { + var vfVlanInfoList []*VfVlanInfo + attrs, err := ParseRouteAttr(b) + if err != nil { + return nil, err + } + + for _, element := range attrs { + if element.Attr.Type == IFLA_VF_VLAN_INFO { + vfVlanInfoList = append(vfVlanInfoList, DeserializeVfVlanInfo(element.Value)) + } + } + + if len(vfVlanInfoList) == 0 { + return nil, fmt.Errorf("VF vlan list is defined but no vf vlan info elements were found") + } + + return vfVlanInfoList, nil +} + +// struct ifla_vf_vlan_info { +// __u32 vf; +// __u32 vlan; /* 0 - 4095, 0 disables VLAN filter */ +// __u32 qos; +// __be16 vlan_proto; /* VLAN protocol either 802.1Q or 802.1ad */ +// }; + +type VfVlanInfo struct { + VfVlan + VlanProto uint16 +} + +func DeserializeVfVlanInfo(b []byte) *VfVlanInfo { + return &VfVlanInfo{ + *(*VfVlan)(unsafe.Pointer(&b[0:SizeofVfVlan][0])), + binary.BigEndian.Uint16(b[SizeofVfVlan:SizeofVfVlanInfo]), + } +} + +func (msg *VfVlanInfo) Serialize() []byte { + return (*(*[SizeofVfVlanInfo]byte)(unsafe.Pointer(msg)))[:] +} + // struct ifla_vf_tx_rate { // __u32 vf; // __u32 rate; /* Max TX bandwidth in Mbps, 0 disables throttling */ @@ -326,6 +444,59 @@ func (msg *VfTxRate) Serialize() []byte { return (*(*[SizeofVfTxRate]byte)(unsafe.Pointer(msg)))[:] } +//struct ifla_vf_stats { +// __u64 rx_packets; +// __u64 tx_packets; +// __u64 rx_bytes; +// __u64 tx_bytes; +// __u64 broadcast; +// __u64 multicast; +//}; + +type VfStats struct { + RxPackets uint64 + TxPackets uint64 + RxBytes uint64 + TxBytes uint64 + Multicast uint64 + Broadcast uint64 + RxDropped uint64 + TxDropped uint64 +} + +func DeserializeVfStats(b []byte) VfStats { + var vfstat VfStats + stats, err := ParseRouteAttr(b) + if err != nil { + return vfstat + } + var valueVar uint64 + for _, stat := range stats { + if err := binary.Read(bytes.NewBuffer(stat.Value), NativeEndian(), &valueVar); err != nil { + break + } + switch stat.Attr.Type { + case IFLA_VF_STATS_RX_PACKETS: + vfstat.RxPackets = valueVar + case IFLA_VF_STATS_TX_PACKETS: + vfstat.TxPackets = valueVar + case IFLA_VF_STATS_RX_BYTES: + vfstat.RxBytes = valueVar + case IFLA_VF_STATS_TX_BYTES: + vfstat.TxBytes = valueVar + case IFLA_VF_STATS_MULTICAST: + vfstat.Multicast = valueVar + case IFLA_VF_STATS_BROADCAST: + vfstat.Broadcast = valueVar + case IFLA_VF_STATS_RX_DROPPED: + vfstat.RxDropped = valueVar + case IFLA_VF_STATS_TX_DROPPED: + vfstat.TxDropped = valueVar + } + } + return vfstat +} + // struct ifla_vf_rate { // __u32 vf; // __u32 min_tx_rate; /* Min Bandwidth in Mbps */ @@ -478,6 +649,14 @@ const ( IFLA_XDP_MAX = IFLA_XDP_PROG_ID ) +// XDP program attach mode (used as dump value for IFLA_XDP_ATTACHED) +const ( + XDP_ATTACHED_NONE = iota + XDP_ATTACHED_DRV + XDP_ATTACHED_SKB + XDP_ATTACHED_HW +) + const ( IFLA_IPTUN_UNSPEC = iota IFLA_IPTUN_LINK @@ -608,3 +787,32 @@ const ( IFLA_IPOIB_UMCAST IFLA_IPOIB_MAX = IFLA_IPOIB_UMCAST ) + +const ( + IFLA_CAN_UNSPEC = iota + IFLA_CAN_BITTIMING + IFLA_CAN_BITTIMING_CONST + IFLA_CAN_CLOCK + IFLA_CAN_STATE + IFLA_CAN_CTRLMODE + IFLA_CAN_RESTART_MS + IFLA_CAN_RESTART + IFLA_CAN_BERR_COUNTER + IFLA_CAN_DATA_BITTIMING + IFLA_CAN_DATA_BITTIMING_CONST + IFLA_CAN_TERMINATION + IFLA_CAN_TERMINATION_CONST + IFLA_CAN_BITRATE_CONST + IFLA_CAN_DATA_BITRATE_CONST + IFLA_CAN_BITRATE_MAX + IFLA_CAN_MAX = IFLA_CAN_BITRATE_MAX +) + +const ( + IFLA_BAREUDP_UNSPEC = iota + IFLA_BAREUDP_PORT + IFLA_BAREUDP_ETHERTYPE + IFLA_BAREUDP_SRCPORT_MIN + IFLA_BAREUDP_MULTIPROTO_MODE + IFLA_BAREUDP_MAX = IFLA_BAREUDP_MULTIPROTO_MODE +) diff --git a/vendor/github.com/vishvananda/netlink/nl/lwt_linux.go b/vendor/github.com/vishvananda/netlink/nl/lwt_linux.go new file mode 100644 index 000000000..bafd593c4 --- /dev/null +++ b/vendor/github.com/vishvananda/netlink/nl/lwt_linux.go @@ -0,0 +1,29 @@ +package nl + +const ( + LWT_BPF_PROG_UNSPEC = iota + LWT_BPF_PROG_FD + LWT_BPF_PROG_NAME + __LWT_BPF_PROG_MAX +) + +const ( + LWT_BPF_PROG_MAX = __LWT_BPF_PROG_MAX - 1 +) + +const ( + LWT_BPF_UNSPEC = iota + LWT_BPF_IN + LWT_BPF_OUT + LWT_BPF_XMIT + LWT_BPF_XMIT_HEADROOM + __LWT_BPF_MAX +) + +const ( + LWT_BPF_MAX = __LWT_BPF_MAX - 1 +) + +const ( + LWT_BPF_MAX_HEADROOM = 256 +) diff --git a/vendor/github.com/vishvananda/netlink/nl/nl_linux.go b/vendor/github.com/vishvananda/netlink/nl/nl_linux.go index aaf56c671..6cecc4517 100644 --- a/vendor/github.com/vishvananda/netlink/nl/nl_linux.go +++ b/vendor/github.com/vishvananda/netlink/nl/nl_linux.go @@ -6,6 +6,7 @@ import ( "encoding/binary" "fmt" "net" + "os" "runtime" "sync" "sync/atomic" @@ -27,7 +28,8 @@ const ( // tc rules or filters, or other more memory requiring data. RECEIVE_BUFFER_SIZE = 65536 // Kernel netlink pid - PidKernel uint32 = 0 + PidKernel uint32 = 0 + SizeofCnMsgOp = 0x18 ) // SupportedNlFamilies contains the list of netlink families this netlink package supports @@ -35,6 +37,12 @@ var SupportedNlFamilies = []int{unix.NETLINK_ROUTE, unix.NETLINK_XFRM, unix.NETL var nextSeqNr uint32 +// Default netlink socket timeout, 60s +var SocketTimeoutTv = unix.Timeval{Sec: 60, Usec: 0} + +// ErrorMessageReporting is the default error message reporting configuration for the new netlink sockets +var EnableErrorMessageReporting bool = false + // GetIPFamily returns the family type of a net.IP. func GetIPFamily(ip net.IP) int { if len(ip) <= net.IPv4len { @@ -77,11 +85,69 @@ func Swap32(i uint32) uint32 { return (i&0xff000000)>>24 | (i&0xff0000)>>8 | (i&0xff00)<<8 | (i&0xff)<<24 } +const ( + NLMSGERR_ATTR_UNUSED = 0 + NLMSGERR_ATTR_MSG = 1 + NLMSGERR_ATTR_OFFS = 2 + NLMSGERR_ATTR_COOKIE = 3 + NLMSGERR_ATTR_POLICY = 4 +) + type NetlinkRequestData interface { Len() int Serialize() []byte } +const ( + PROC_CN_MCAST_LISTEN = 1 + PROC_CN_MCAST_IGNORE +) + +type CbID struct { + Idx uint32 + Val uint32 +} + +type CnMsg struct { + ID CbID + Seq uint32 + Ack uint32 + Length uint16 + Flags uint16 +} + +type CnMsgOp struct { + CnMsg + // here we differ from the C header + Op uint32 +} + +func NewCnMsg(idx, val, op uint32) *CnMsgOp { + var cm CnMsgOp + + cm.ID.Idx = idx + cm.ID.Val = val + + cm.Ack = 0 + cm.Seq = 1 + cm.Length = uint16(binary.Size(op)) + cm.Op = op + + return &cm +} + +func (msg *CnMsgOp) Serialize() []byte { + return (*(*[SizeofCnMsgOp]byte)(unsafe.Pointer(msg)))[:] +} + +func DeserializeCnMsgOp(b []byte) *CnMsgOp { + return (*CnMsgOp)(unsafe.Pointer(&b[0:SizeofCnMsgOp][0])) +} + +func (msg *CnMsgOp) Len() int { + return SizeofCnMsgOp +} + // IfInfomsg is related to links, but it is used for list requests as well type IfInfomsg struct { unix.IfInfomsg @@ -249,6 +315,12 @@ func (msg *IfInfomsg) EncapType() string { return fmt.Sprintf("unknown%d", msg.Type) } +// Round the length of a netlink message up to align it properly. +// Taken from syscall/netlink_linux.go by The Go Authors under BSD-style license. +func nlmAlignOf(msglen int) int { + return (msglen + syscall.NLMSG_ALIGNTO - 1) & ^(syscall.NLMSG_ALIGNTO - 1) +} + func rtaAlignOf(attrlen int) int { return (attrlen + unix.RTA_ALIGNTO - 1) & ^(unix.RTA_ALIGNTO - 1) } @@ -259,6 +331,42 @@ func NewIfInfomsgChild(parent *RtAttr, family int) *IfInfomsg { return msg } +type Uint32Bitfield struct { + Value uint32 + Selector uint32 +} + +func (a *Uint32Bitfield) Serialize() []byte { + return (*(*[SizeofUint32Bitfield]byte)(unsafe.Pointer(a)))[:] +} + +func DeserializeUint32Bitfield(data []byte) *Uint32Bitfield { + return (*Uint32Bitfield)(unsafe.Pointer(&data[0:SizeofUint32Bitfield][0])) +} + +type Uint32Attribute struct { + Type uint16 + Value uint32 +} + +func (a *Uint32Attribute) Serialize() []byte { + native := NativeEndian() + buf := make([]byte, rtaAlignOf(8)) + native.PutUint16(buf[0:2], 8) + native.PutUint16(buf[2:4], a.Type) + + if a.Type&NLA_F_NET_BYTEORDER != 0 { + binary.BigEndian.PutUint32(buf[4:], a.Value) + } else { + native.PutUint32(buf[4:], a.Value) + } + return buf +} + +func (a *Uint32Attribute) Len() int { + return 8 +} + // Extend RtAttr to handle data and children type RtAttr struct { unix.RtAttr @@ -381,10 +489,30 @@ func (req *NetlinkRequest) AddRawData(data []byte) { req.RawData = append(req.RawData, data...) } -// Execute the request against a the given sockType. +// Execute the request against the given sockType. // Returns a list of netlink messages in serialized format, optionally filtered // by resType. func (req *NetlinkRequest) Execute(sockType int, resType uint16) ([][]byte, error) { + var res [][]byte + err := req.ExecuteIter(sockType, resType, func(msg []byte) bool { + res = append(res, msg) + return true + }) + if err != nil { + return nil, err + } + return res, nil +} + +// ExecuteIter executes the request against the given sockType. +// Calls the provided callback func once for each netlink message. +// If the callback returns false, it is not called again, but +// the remaining messages are consumed/discarded. +// +// Thread safety: ExecuteIter holds a lock on the socket until +// it finishes iteration so the callback must not call back into +// the netlink API. +func (req *NetlinkRequest) ExecuteIter(sockType int, resType uint16, f func(msg []byte) bool) error { var ( s *NetlinkSocket err error @@ -401,8 +529,21 @@ func (req *NetlinkRequest) Execute(sockType int, resType uint16) ([][]byte, erro if s == nil { s, err = getNetlinkSocket(sockType) if err != nil { - return nil, err + return err } + + if err := s.SetSendTimeout(&SocketTimeoutTv); err != nil { + return err + } + if err := s.SetReceiveTimeout(&SocketTimeoutTv); err != nil { + return err + } + if EnableErrorMessageReporting { + if err := s.SetExtAck(true); err != nil { + return err + } + } + defer s.Close() } else { s.Lock() @@ -410,56 +551,94 @@ func (req *NetlinkRequest) Execute(sockType int, resType uint16) ([][]byte, erro } if err := s.Send(req); err != nil { - return nil, err + return err } pid, err := s.GetPid() if err != nil { - return nil, err + return err } - var res [][]byte - done: for { msgs, from, err := s.Receive() if err != nil { - return nil, err + return err } if from.Pid != PidKernel { - return nil, fmt.Errorf("Wrong sender portid %d, expected %d", from.Pid, PidKernel) + return fmt.Errorf("Wrong sender portid %d, expected %d", from.Pid, PidKernel) } for _, m := range msgs { if m.Header.Seq != req.Seq { if sharedSocket { continue } - return nil, fmt.Errorf("Wrong Seq nr %d, expected %d", m.Header.Seq, req.Seq) + return fmt.Errorf("Wrong Seq nr %d, expected %d", m.Header.Seq, req.Seq) } if m.Header.Pid != pid { continue } - if m.Header.Type == unix.NLMSG_DONE { - break done + + if m.Header.Flags&unix.NLM_F_DUMP_INTR != 0 { + return syscall.Errno(unix.EINTR) } - if m.Header.Type == unix.NLMSG_ERROR { + + if m.Header.Type == unix.NLMSG_DONE || m.Header.Type == unix.NLMSG_ERROR { + // NLMSG_DONE might have no payload, if so assume no error. + if m.Header.Type == unix.NLMSG_DONE && len(m.Data) == 0 { + break done + } + native := NativeEndian() - error := int32(native.Uint32(m.Data[0:4])) - if error == 0 { + errno := int32(native.Uint32(m.Data[0:4])) + if errno == 0 { break done } - return nil, syscall.Errno(-error) + var err error + err = syscall.Errno(-errno) + + unreadData := m.Data[4:] + if m.Header.Flags&unix.NLM_F_ACK_TLVS != 0 && len(unreadData) > syscall.SizeofNlMsghdr { + // Skip the echoed request message. + echoReqH := (*syscall.NlMsghdr)(unsafe.Pointer(&unreadData[0])) + unreadData = unreadData[nlmAlignOf(int(echoReqH.Len)):] + + // Annotate `err` using nlmsgerr attributes. + for len(unreadData) >= syscall.SizeofRtAttr { + attr := (*syscall.RtAttr)(unsafe.Pointer(&unreadData[0])) + attrData := unreadData[syscall.SizeofRtAttr:attr.Len] + + switch attr.Type { + case NLMSGERR_ATTR_MSG: + err = fmt.Errorf("%w: %s", err, unix.ByteSliceToString(attrData)) + default: + // TODO: handle other NLMSGERR_ATTR types + } + + unreadData = unreadData[rtaAlignOf(int(attr.Len)):] + } + } + + return err } if resType != 0 && m.Header.Type != resType { continue } - res = append(res, m.Data) + if cont := f(m.Data); !cont { + // Drain the rest of the messages from the kernel but don't + // pass them to the iterator func. + f = dummyMsgIterFunc + } if m.Header.Flags&unix.NLM_F_MULTI == 0 { break done } } } - return res, nil + return nil +} + +func dummyMsgIterFunc(msg []byte) bool { + return true } // Create a new netlink request from proto and flags @@ -477,8 +656,9 @@ func NewNetlinkRequest(proto, flags int) *NetlinkRequest { } type NetlinkSocket struct { - fd int32 - lsa unix.SockaddrNetlink + fd int32 + file *os.File + lsa unix.SockaddrNetlink sync.Mutex } @@ -487,8 +667,13 @@ func getNetlinkSocket(protocol int) (*NetlinkSocket, error) { if err != nil { return nil, err } + err = unix.SetNonblock(fd, true) + if err != nil { + return nil, err + } s := &NetlinkSocket{ - fd: int32(fd), + fd: int32(fd), + file: os.NewFile(uintptr(fd), "netlink"), } s.lsa.Family = unix.AF_NETLINK if err := unix.Bind(fd, &s.lsa); err != nil { @@ -519,12 +704,14 @@ func GetNetlinkSocketAt(newNs, curNs netns.NsHandle, protocol int) (*NetlinkSock // In case of success, the caller is expected to execute the returned function // at the end of the code that needs to be executed in the network namespace. // Example: -// func jobAt(...) error { -// d, err := executeInNetns(...) -// if err != nil { return err} -// defer d() -// < code which needs to be executed in specific netns> -// } +// +// func jobAt(...) error { +// d, err := executeInNetns(...) +// if err != nil { return err} +// defer d() +// < code which needs to be executed in specific netns> +// } +// // TODO: his function probably belongs to netns pkg. func executeInNetns(newNs, curNs netns.NsHandle) (func(), error) { var ( @@ -573,8 +760,13 @@ func Subscribe(protocol int, groups ...uint) (*NetlinkSocket, error) { if err != nil { return nil, err } + err = unix.SetNonblock(fd, true) + if err != nil { + return nil, err + } s := &NetlinkSocket{ - fd: int32(fd), + fd: int32(fd), + file: os.NewFile(uintptr(fd), "netlink"), } s.lsa.Family = unix.AF_NETLINK @@ -603,33 +795,36 @@ func SubscribeAt(newNs, curNs netns.NsHandle, protocol int, groups ...uint) (*Ne } func (s *NetlinkSocket) Close() { - fd := int(atomic.SwapInt32(&s.fd, -1)) - unix.Close(fd) + s.file.Close() } func (s *NetlinkSocket) GetFd() int { - return int(atomic.LoadInt32(&s.fd)) + return int(s.fd) } func (s *NetlinkSocket) Send(request *NetlinkRequest) error { - fd := int(atomic.LoadInt32(&s.fd)) - if fd < 0 { - return fmt.Errorf("Send called on a closed socket") - } - if err := unix.Sendto(fd, request.Serialize(), 0, &s.lsa); err != nil { - return err - } - return nil + return unix.Sendto(int(s.fd), request.Serialize(), 0, &s.lsa) } func (s *NetlinkSocket) Receive() ([]syscall.NetlinkMessage, *unix.SockaddrNetlink, error) { - fd := int(atomic.LoadInt32(&s.fd)) - if fd < 0 { - return nil, nil, fmt.Errorf("Receive called on a closed socket") + rawConn, err := s.file.SyscallConn() + if err != nil { + return nil, nil, err + } + var ( + fromAddr *unix.SockaddrNetlink + rb [RECEIVE_BUFFER_SIZE]byte + nr int + from unix.Sockaddr + innerErr error + ) + err = rawConn.Read(func(fd uintptr) (done bool) { + nr, from, innerErr = unix.Recvfrom(int(fd), rb[:], 0) + return innerErr != unix.EWOULDBLOCK + }) + if innerErr != nil { + err = innerErr } - var fromAddr *unix.SockaddrNetlink - var rb [RECEIVE_BUFFER_SIZE]byte - nr, from, err := unix.Recvfrom(fd, rb[:], 0) if err != nil { return nil, nil, err } @@ -640,8 +835,9 @@ func (s *NetlinkSocket) Receive() ([]syscall.NetlinkMessage, *unix.SockaddrNetli if nr < unix.NLMSG_HDRLEN { return nil, nil, fmt.Errorf("Got short response from netlink") } - rb2 := make([]byte, nr) - copy(rb2, rb[:nr]) + msgLen := nlmAlignOf(nr) + rb2 := make([]byte, msgLen) + copy(rb2, rb[:msgLen]) nl, err := syscall.ParseNetlinkMessage(rb2) if err != nil { return nil, nil, err @@ -663,9 +859,27 @@ func (s *NetlinkSocket) SetReceiveTimeout(timeout *unix.Timeval) error { return unix.SetsockoptTimeval(int(s.fd), unix.SOL_SOCKET, unix.SO_RCVTIMEO, timeout) } +// SetReceiveBufferSize allows to set a receive buffer size on the socket +func (s *NetlinkSocket) SetReceiveBufferSize(size int, force bool) error { + opt := unix.SO_RCVBUF + if force { + opt = unix.SO_RCVBUFFORCE + } + return unix.SetsockoptInt(int(s.fd), unix.SOL_SOCKET, opt, size) +} + +// SetExtAck requests error messages to be reported on the socket +func (s *NetlinkSocket) SetExtAck(enable bool) error { + var enableN int + if enable { + enableN = 1 + } + + return unix.SetsockoptInt(int(s.fd), unix.SOL_NETLINK, unix.NETLINK_EXT_ACK, enableN) +} + func (s *NetlinkSocket) GetPid() (uint32, error) { - fd := int(atomic.LoadInt32(&s.fd)) - lsa, err := unix.Getsockname(fd) + lsa, err := unix.Getsockname(int(s.fd)) if err != nil { return 0, err } @@ -709,6 +923,12 @@ func Uint16Attr(v uint16) []byte { return bytes } +func BEUint16Attr(v uint16) []byte { + bytes := make([]byte, 2) + binary.BigEndian.PutUint16(bytes, v) + return bytes +} + func Uint32Attr(v uint32) []byte { native := NativeEndian() bytes := make([]byte, 4) @@ -716,6 +936,12 @@ func Uint32Attr(v uint32) []byte { return bytes } +func BEUint32Attr(v uint32) []byte { + bytes := make([]byte, 4) + binary.BigEndian.PutUint32(bytes, v) + return bytes +} + func Uint64Attr(v uint64) []byte { native := NativeEndian() bytes := make([]byte, 8) @@ -723,6 +949,12 @@ func Uint64Attr(v uint64) []byte { return bytes } +func BEUint64Attr(v uint64) []byte { + bytes := make([]byte, 8) + binary.BigEndian.PutUint64(bytes, v) + return bytes +} + func ParseRouteAttr(b []byte) ([]syscall.NetlinkRouteAttr, error) { var attrs []syscall.NetlinkRouteAttr for len(b) >= unix.SizeofRtAttr { @@ -737,6 +969,22 @@ func ParseRouteAttr(b []byte) ([]syscall.NetlinkRouteAttr, error) { return attrs, nil } +// ParseRouteAttrAsMap parses provided buffer that contains raw RtAttrs and returns a map of parsed +// atttributes indexed by attribute type or error if occured. +func ParseRouteAttrAsMap(b []byte) (map[uint16]syscall.NetlinkRouteAttr, error) { + attrMap := make(map[uint16]syscall.NetlinkRouteAttr) + + attrs, err := ParseRouteAttr(b) + if err != nil { + return nil, err + } + + for _, attr := range attrs { + attrMap[attr.Attr.Type] = attr + } + return attrMap, nil +} + func netlinkRouteAttrAndValue(b []byte) (*unix.RtAttr, []byte, int, error) { a := (*unix.RtAttr)(unsafe.Pointer(&b[0])) if int(a.Len) < unix.SizeofRtAttr || int(a.Len) > len(b) { diff --git a/vendor/github.com/vishvananda/netlink/nl/parse_attr_linux.go b/vendor/github.com/vishvananda/netlink/nl/parse_attr_linux.go new file mode 100644 index 000000000..7f49125cf --- /dev/null +++ b/vendor/github.com/vishvananda/netlink/nl/parse_attr_linux.go @@ -0,0 +1,79 @@ +package nl + +import ( + "encoding/binary" + "fmt" + "log" +) + +type Attribute struct { + Type uint16 + Value []byte +} + +func ParseAttributes(data []byte) <-chan Attribute { + native := NativeEndian() + result := make(chan Attribute) + + go func() { + i := 0 + for i+4 < len(data) { + length := int(native.Uint16(data[i : i+2])) + attrType := native.Uint16(data[i+2 : i+4]) + + if length < 4 { + log.Printf("attribute 0x%02x has invalid length of %d bytes", attrType, length) + break + } + + if len(data) < i+length { + log.Printf("attribute 0x%02x of length %d is truncated, only %d bytes remaining", attrType, length, len(data)-i) + break + } + + result <- Attribute{ + Type: attrType, + Value: data[i+4 : i+length], + } + i += rtaAlignOf(length) + } + close(result) + }() + + return result +} + +func PrintAttributes(data []byte) { + printAttributes(data, 0) +} + +func printAttributes(data []byte, level int) { + for attr := range ParseAttributes(data) { + for i := 0; i < level; i++ { + print("> ") + } + nested := attr.Type&NLA_F_NESTED != 0 + fmt.Printf("type=%d nested=%v len=%v %v\n", attr.Type&NLA_TYPE_MASK, nested, len(attr.Value), attr.Value) + if nested { + printAttributes(attr.Value, level+1) + } + } +} + +// Uint32 returns the uint32 value respecting the NET_BYTEORDER flag +func (attr *Attribute) Uint32() uint32 { + if attr.Type&NLA_F_NET_BYTEORDER != 0 { + return binary.BigEndian.Uint32(attr.Value) + } else { + return NativeEndian().Uint32(attr.Value) + } +} + +// Uint64 returns the uint64 value respecting the NET_BYTEORDER flag +func (attr *Attribute) Uint64() uint64 { + if attr.Type&NLA_F_NET_BYTEORDER != 0 { + return binary.BigEndian.Uint64(attr.Value) + } else { + return NativeEndian().Uint64(attr.Value) + } +} diff --git a/vendor/github.com/vishvananda/netlink/nl/rdma_link_linux.go b/vendor/github.com/vishvananda/netlink/nl/rdma_link_linux.go index 1224b747d..ce43ee155 100644 --- a/vendor/github.com/vishvananda/netlink/nl/rdma_link_linux.go +++ b/vendor/github.com/vishvananda/netlink/nl/rdma_link_linux.go @@ -11,6 +11,8 @@ const ( const ( RDMA_NLDEV_CMD_GET = 1 RDMA_NLDEV_CMD_SET = 2 + RDMA_NLDEV_CMD_NEWLINK = 3 + RDMA_NLDEV_CMD_DELLINK = 4 RDMA_NLDEV_CMD_SYS_GET = 6 RDMA_NLDEV_CMD_SYS_SET = 7 ) @@ -30,6 +32,8 @@ const ( RDMA_NLDEV_ATTR_PORT_STATE = 12 RDMA_NLDEV_ATTR_PORT_PHYS_STATE = 13 RDMA_NLDEV_ATTR_DEV_NODE_TYPE = 14 + RDMA_NLDEV_ATTR_NDEV_NAME = 51 + RDMA_NLDEV_ATTR_LINK_TYPE = 65 RDMA_NLDEV_SYS_ATTR_NETNS_MODE = 66 RDMA_NLDEV_NET_NS_FD = 68 ) diff --git a/vendor/github.com/vishvananda/netlink/nl/route_linux.go b/vendor/github.com/vishvananda/netlink/nl/route_linux.go index 03c1900ff..c26f3bf91 100644 --- a/vendor/github.com/vishvananda/netlink/nl/route_linux.go +++ b/vendor/github.com/vishvananda/netlink/nl/route_linux.go @@ -48,7 +48,9 @@ type RtNexthop struct { } func DeserializeRtNexthop(b []byte) *RtNexthop { - return (*RtNexthop)(unsafe.Pointer(&b[0:unix.SizeofRtNexthop][0])) + return &RtNexthop{ + RtNexthop: *((*unix.RtNexthop)(unsafe.Pointer(&b[0:unix.SizeofRtNexthop][0]))), + } } func (msg *RtNexthop) Len() int { diff --git a/vendor/github.com/vishvananda/netlink/nl/seg6_linux.go b/vendor/github.com/vishvananda/netlink/nl/seg6_linux.go index 5774cbb15..fe88285f2 100644 --- a/vendor/github.com/vishvananda/netlink/nl/seg6_linux.go +++ b/vendor/github.com/vishvananda/netlink/nl/seg6_linux.go @@ -23,7 +23,7 @@ func (s1 *IPv6SrHdr) Equal(s2 IPv6SrHdr) bool { return false } for i := range s1.Segments { - if s1.Segments[i].Equal(s2.Segments[i]) != true { + if !s1.Segments[i].Equal(s2.Segments[i]) { return false } } @@ -89,7 +89,7 @@ func DecodeSEG6Encap(buf []byte) (int, []net.IP, error) { } buf = buf[12:] if len(buf)%16 != 0 { - err := fmt.Errorf("DecodeSEG6Encap: error parsing Segment List (buf len: %d)\n", len(buf)) + err := fmt.Errorf("DecodeSEG6Encap: error parsing Segment List (buf len: %d)", len(buf)) return mode, nil, err } for len(buf) > 0 { diff --git a/vendor/github.com/vishvananda/netlink/nl/seg6local_linux.go b/vendor/github.com/vishvananda/netlink/nl/seg6local_linux.go index 150017726..8172b8471 100644 --- a/vendor/github.com/vishvananda/netlink/nl/seg6local_linux.go +++ b/vendor/github.com/vishvananda/netlink/nl/seg6local_linux.go @@ -12,6 +12,7 @@ const ( SEG6_LOCAL_NH6 SEG6_LOCAL_IIF SEG6_LOCAL_OIF + SEG6_LOCAL_BPF __SEG6_LOCAL_MAX ) const ( @@ -34,6 +35,7 @@ const ( SEG6_LOCAL_ACTION_END_S // 12 SEG6_LOCAL_ACTION_END_AS // 13 SEG6_LOCAL_ACTION_END_AM // 14 + SEG6_LOCAL_ACTION_END_BPF // 15 __SEG6_LOCAL_ACTION_MAX ) const ( @@ -71,6 +73,8 @@ func SEG6LocalActionString(action int) string { return "End.AS" case SEG6_LOCAL_ACTION_END_AM: return "End.AM" + case SEG6_LOCAL_ACTION_END_BPF: + return "End.BPF" } return "unknown" } diff --git a/vendor/github.com/vishvananda/netlink/nl/syscall.go b/vendor/github.com/vishvananda/netlink/nl/syscall.go index f7f7f92e6..b5ba039ac 100644 --- a/vendor/github.com/vishvananda/netlink/nl/syscall.go +++ b/vendor/github.com/vishvananda/netlink/nl/syscall.go @@ -1,6 +1,6 @@ package nl -// syscall package lack of rule atributes type. +// syscall package lack of rule attributes type. // Thus there are defined below const ( FRA_UNSPEC = iota @@ -21,6 +21,13 @@ const ( FRA_TABLE /* Extended table id */ FRA_FWMASK /* mask for netfilter mark */ FRA_OIFNAME + FRA_PAD + FRA_L3MDEV /* iif or oif is l3mdev goto its table */ + FRA_UID_RANGE /* UID range */ + FRA_PROTOCOL /* Originator of the rule */ + FRA_IP_PROTO /* ip proto */ + FRA_SPORT_RANGE /* sport */ + FRA_DPORT_RANGE /* dport */ ) // ip rule netlink request types @@ -39,6 +46,7 @@ const ( // socket diags related const ( SOCK_DIAG_BY_FAMILY = 20 /* linux.sock_diag.h */ + SOCK_DESTROY = 21 TCPDIAG_NOCOOKIE = 0xFFFFFFFF /* TCPDIAG_NOCOOKIE in net/ipv4/tcp_diag.h*/ ) diff --git a/vendor/github.com/vishvananda/netlink/nl/tc_linux.go b/vendor/github.com/vishvananda/netlink/nl/tc_linux.go index 501f554b2..0720729a9 100644 --- a/vendor/github.com/vishvananda/netlink/nl/tc_linux.go +++ b/vendor/github.com/vishvananda/netlink/nl/tc_linux.go @@ -1,8 +1,13 @@ package nl import ( + "bytes" "encoding/binary" + "fmt" + "net" "unsafe" + + "golang.org/x/sys/unix" ) // LinkLayer @@ -42,7 +47,14 @@ const ( TCA_FCNT TCA_STATS2 TCA_STAB - TCA_MAX = TCA_STAB + TCA_PAD + TCA_DUMP_INVISIBLE + TCA_CHAIN + TCA_HW_OFFLOAD + TCA_INGRESS_BLOCK + TCA_EGRESS_BLOCK + TCA_DUMP_FLAGS + TCA_MAX = TCA_DUMP_FLAGS ) const ( @@ -56,6 +68,12 @@ const ( TCA_ACT_OPTIONS TCA_ACT_INDEX TCA_ACT_STATS + TCA_ACT_PAD + TCA_ACT_COOKIE + TCA_ACT_FLAGS + TCA_ACT_HW_STATS + TCA_ACT_USED_HW_STATS + TCA_ACT_IN_HW_COUNT TCA_ACT_MAX ) @@ -71,7 +89,11 @@ const ( TCA_STATS_RATE_EST TCA_STATS_QUEUE TCA_STATS_APP - TCA_STATS_MAX = TCA_STATS_APP + TCA_STATS_RATE_EST64 + TCA_STATS_PAD + TCA_STATS_BASIC_HW + TCA_STATS_PKT64 + TCA_STATS_MAX = TCA_STATS_PKT64 ) const ( @@ -83,17 +105,23 @@ const ( SizeofTcNetemCorr = 0x0c SizeofTcNetemReorder = 0x08 SizeofTcNetemCorrupt = 0x08 + SizeOfTcNetemRate = 0x10 SizeofTcTbfQopt = 2*SizeofTcRateSpec + 0x0c SizeofTcHtbCopt = 2*SizeofTcRateSpec + 0x14 SizeofTcHtbGlob = 0x14 SizeofTcU32Key = 0x10 SizeofTcU32Sel = 0x10 // without keys - SizeofTcGen = 0x14 + SizeofTcGen = 0x16 SizeofTcConnmark = SizeofTcGen + 0x04 + SizeofTcCsum = SizeofTcGen + 0x04 SizeofTcMirred = SizeofTcGen + 0x08 SizeofTcTunnelKey = SizeofTcGen + 0x04 SizeofTcSkbEdit = SizeofTcGen SizeofTcPolice = 2*SizeofTcRateSpec + 0x20 + SizeofTcSfqQopt = 0x0b + SizeofTcSfqRedStats = 0x18 + SizeofTcSfqQoptV1 = SizeofTcSfqQopt + SizeofTcSfqRedStats + 0x1c + SizeofUint32Bitfield = 0x8 ) // struct tcmsg { @@ -127,6 +155,18 @@ func (x *TcMsg) Serialize() []byte { return (*(*[SizeofTcMsg]byte)(unsafe.Pointer(x)))[:] } +type Tcf struct { + Install uint64 + LastUse uint64 + Expires uint64 + FirstUse uint64 +} + +func DeserializeTcf(b []byte) *Tcf { + const size = int(unsafe.Sizeof(Tcf{})) + return (*Tcf)(unsafe.Pointer(&b[0:size][0])) +} + // struct tcamsg { // unsigned char tca_family; // unsigned char tca__pad1; @@ -333,6 +373,26 @@ func (x *TcNetemCorrupt) Serialize() []byte { return (*(*[SizeofTcNetemCorrupt]byte)(unsafe.Pointer(x)))[:] } +// TcNetemRate is a struct that represents the rate of a netem qdisc +type TcNetemRate struct { + Rate uint32 + PacketOverhead int32 + CellSize uint32 + CellOverhead int32 +} + +func (msg *TcNetemRate) Len() int { + return SizeofTcRateSpec +} + +func DeserializeTcNetemRate(b []byte) *TcNetemRate { + return (*TcNetemRate)(unsafe.Pointer(&b[0:SizeofTcRateSpec][0])) +} + +func (msg *TcNetemRate) Serialize() []byte { + return (*(*[SizeOfTcNetemRate]byte)(unsafe.Pointer(msg)))[:] +} + // struct tc_tbf_qopt { // struct tc_ratespec rate; // struct tc_ratespec peakrate; @@ -691,6 +751,36 @@ func (x *TcConnmark) Serialize() []byte { return (*(*[SizeofTcConnmark]byte)(unsafe.Pointer(x)))[:] } +const ( + TCA_CSUM_UNSPEC = iota + TCA_CSUM_PARMS + TCA_CSUM_TM + TCA_CSUM_PAD + TCA_CSUM_MAX = TCA_CSUM_PAD +) + +// struct tc_csum { +// tc_gen; +// __u32 update_flags; +// } + +type TcCsum struct { + TcGen + UpdateFlags uint32 +} + +func (msg *TcCsum) Len() int { + return SizeofTcCsum +} + +func DeserializeTcCsum(b []byte) *TcCsum { + return (*TcCsum)(unsafe.Pointer(&b[0:SizeofTcCsum][0])) +} + +func (x *TcCsum) Serialize() []byte { + return (*(*[SizeofTcCsum]byte)(unsafe.Pointer(x)))[:] +} + const ( TCA_ACT_MIRRED = 8 ) @@ -735,7 +825,13 @@ const ( TCA_TUNNEL_KEY_ENC_IPV6_SRC TCA_TUNNEL_KEY_ENC_IPV6_DST TCA_TUNNEL_KEY_ENC_KEY_ID - TCA_TUNNEL_KEY_MAX = TCA_TUNNEL_KEY_ENC_KEY_ID + TCA_TUNNEL_KEY_PAD + TCA_TUNNEL_KEY_ENC_DST_PORT + TCA_TUNNEL_KEY_NO_CSUM + TCA_TUNNEL_KEY_ENC_OPTS + TCA_TUNNEL_KEY_ENC_TOS + TCA_TUNNEL_KEY_ENC_TTL + TCA_TUNNEL_KEY_MAX ) type TcTunnelKey struct { @@ -764,7 +860,8 @@ const ( TCA_SKBEDIT_MARK TCA_SKBEDIT_PAD TCA_SKBEDIT_PTYPE - TCA_SKBEDIT_MAX = TCA_SKBEDIT_MARK + TCA_SKBEDIT_MASK + TCA_SKBEDIT_MAX ) type TcSkbEdit struct { @@ -851,6 +948,10 @@ const ( TCA_FQ_FLOW_REFILL_DELAY // flow credit refill delay in usec TCA_FQ_ORPHAN_MASK // mask applied to orphaned skb hashes TCA_FQ_LOW_RATE_THRESHOLD // per packet delay under this rate + TCA_FQ_CE_THRESHOLD // DCTCP-like CE-marking threshold + TCA_FQ_TIMER_SLACK // timer slack + TCA_FQ_HORIZON // time horizon in us + TCA_FQ_HORIZON_DROP // drop packets beyond horizon, or cap their EDT ) const ( @@ -872,3 +973,639 @@ const ( TCA_HFSC_FSC TCA_HFSC_USC ) + +const ( + TCA_FLOWER_UNSPEC = iota + TCA_FLOWER_CLASSID + TCA_FLOWER_INDEV + TCA_FLOWER_ACT + TCA_FLOWER_KEY_ETH_DST /* ETH_ALEN */ + TCA_FLOWER_KEY_ETH_DST_MASK /* ETH_ALEN */ + TCA_FLOWER_KEY_ETH_SRC /* ETH_ALEN */ + TCA_FLOWER_KEY_ETH_SRC_MASK /* ETH_ALEN */ + TCA_FLOWER_KEY_ETH_TYPE /* be16 */ + TCA_FLOWER_KEY_IP_PROTO /* u8 */ + TCA_FLOWER_KEY_IPV4_SRC /* be32 */ + TCA_FLOWER_KEY_IPV4_SRC_MASK /* be32 */ + TCA_FLOWER_KEY_IPV4_DST /* be32 */ + TCA_FLOWER_KEY_IPV4_DST_MASK /* be32 */ + TCA_FLOWER_KEY_IPV6_SRC /* struct in6_addr */ + TCA_FLOWER_KEY_IPV6_SRC_MASK /* struct in6_addr */ + TCA_FLOWER_KEY_IPV6_DST /* struct in6_addr */ + TCA_FLOWER_KEY_IPV6_DST_MASK /* struct in6_addr */ + TCA_FLOWER_KEY_TCP_SRC /* be16 */ + TCA_FLOWER_KEY_TCP_DST /* be16 */ + TCA_FLOWER_KEY_UDP_SRC /* be16 */ + TCA_FLOWER_KEY_UDP_DST /* be16 */ + + TCA_FLOWER_FLAGS + TCA_FLOWER_KEY_VLAN_ID /* be16 */ + TCA_FLOWER_KEY_VLAN_PRIO /* u8 */ + TCA_FLOWER_KEY_VLAN_ETH_TYPE /* be16 */ + + TCA_FLOWER_KEY_ENC_KEY_ID /* be32 */ + TCA_FLOWER_KEY_ENC_IPV4_SRC /* be32 */ + TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK /* be32 */ + TCA_FLOWER_KEY_ENC_IPV4_DST /* be32 */ + TCA_FLOWER_KEY_ENC_IPV4_DST_MASK /* be32 */ + TCA_FLOWER_KEY_ENC_IPV6_SRC /* struct in6_addr */ + TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK /* struct in6_addr */ + TCA_FLOWER_KEY_ENC_IPV6_DST /* struct in6_addr */ + TCA_FLOWER_KEY_ENC_IPV6_DST_MASK /* struct in6_addr */ + + TCA_FLOWER_KEY_TCP_SRC_MASK /* be16 */ + TCA_FLOWER_KEY_TCP_DST_MASK /* be16 */ + TCA_FLOWER_KEY_UDP_SRC_MASK /* be16 */ + TCA_FLOWER_KEY_UDP_DST_MASK /* be16 */ + TCA_FLOWER_KEY_SCTP_SRC_MASK /* be16 */ + TCA_FLOWER_KEY_SCTP_DST_MASK /* be16 */ + + TCA_FLOWER_KEY_SCTP_SRC /* be16 */ + TCA_FLOWER_KEY_SCTP_DST /* be16 */ + + TCA_FLOWER_KEY_ENC_UDP_SRC_PORT /* be16 */ + TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK /* be16 */ + TCA_FLOWER_KEY_ENC_UDP_DST_PORT /* be16 */ + TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK /* be16 */ + + TCA_FLOWER_KEY_FLAGS /* be32 */ + TCA_FLOWER_KEY_FLAGS_MASK /* be32 */ + + TCA_FLOWER_KEY_ICMPV4_CODE /* u8 */ + TCA_FLOWER_KEY_ICMPV4_CODE_MASK /* u8 */ + TCA_FLOWER_KEY_ICMPV4_TYPE /* u8 */ + TCA_FLOWER_KEY_ICMPV4_TYPE_MASK /* u8 */ + TCA_FLOWER_KEY_ICMPV6_CODE /* u8 */ + TCA_FLOWER_KEY_ICMPV6_CODE_MASK /* u8 */ + TCA_FLOWER_KEY_ICMPV6_TYPE /* u8 */ + TCA_FLOWER_KEY_ICMPV6_TYPE_MASK /* u8 */ + + TCA_FLOWER_KEY_ARP_SIP /* be32 */ + TCA_FLOWER_KEY_ARP_SIP_MASK /* be32 */ + TCA_FLOWER_KEY_ARP_TIP /* be32 */ + TCA_FLOWER_KEY_ARP_TIP_MASK /* be32 */ + TCA_FLOWER_KEY_ARP_OP /* u8 */ + TCA_FLOWER_KEY_ARP_OP_MASK /* u8 */ + TCA_FLOWER_KEY_ARP_SHA /* ETH_ALEN */ + TCA_FLOWER_KEY_ARP_SHA_MASK /* ETH_ALEN */ + TCA_FLOWER_KEY_ARP_THA /* ETH_ALEN */ + TCA_FLOWER_KEY_ARP_THA_MASK /* ETH_ALEN */ + + TCA_FLOWER_KEY_MPLS_TTL /* u8 - 8 bits */ + TCA_FLOWER_KEY_MPLS_BOS /* u8 - 1 bit */ + TCA_FLOWER_KEY_MPLS_TC /* u8 - 3 bits */ + TCA_FLOWER_KEY_MPLS_LABEL /* be32 - 20 bits */ + + TCA_FLOWER_KEY_TCP_FLAGS /* be16 */ + TCA_FLOWER_KEY_TCP_FLAGS_MASK /* be16 */ + + TCA_FLOWER_KEY_IP_TOS /* u8 */ + TCA_FLOWER_KEY_IP_TOS_MASK /* u8 */ + TCA_FLOWER_KEY_IP_TTL /* u8 */ + TCA_FLOWER_KEY_IP_TTL_MASK /* u8 */ + + TCA_FLOWER_KEY_CVLAN_ID /* be16 */ + TCA_FLOWER_KEY_CVLAN_PRIO /* u8 */ + TCA_FLOWER_KEY_CVLAN_ETH_TYPE /* be16 */ + + TCA_FLOWER_KEY_ENC_IP_TOS /* u8 */ + TCA_FLOWER_KEY_ENC_IP_TOS_MASK /* u8 */ + TCA_FLOWER_KEY_ENC_IP_TTL /* u8 */ + TCA_FLOWER_KEY_ENC_IP_TTL_MASK /* u8 */ + + TCA_FLOWER_KEY_ENC_OPTS + TCA_FLOWER_KEY_ENC_OPTS_MASK + + __TCA_FLOWER_MAX +) + +const TCA_CLS_FLAGS_SKIP_HW = 1 << 0 /* don't offload filter to HW */ +const TCA_CLS_FLAGS_SKIP_SW = 1 << 1 /* don't use filter in SW */ + +// struct tc_sfq_qopt { +// unsigned quantum; /* Bytes per round allocated to flow */ +// int perturb_period; /* Period of hash perturbation */ +// __u32 limit; /* Maximal packets in queue */ +// unsigned divisor; /* Hash divisor */ +// unsigned flows; /* Maximal number of flows */ +// }; + +type TcSfqQopt struct { + Quantum uint8 + Perturb int32 + Limit uint32 + Divisor uint8 + Flows uint8 +} + +func (x *TcSfqQopt) Len() int { + return SizeofTcSfqQopt +} + +func DeserializeTcSfqQopt(b []byte) *TcSfqQopt { + return (*TcSfqQopt)(unsafe.Pointer(&b[0:SizeofTcSfqQopt][0])) +} + +func (x *TcSfqQopt) Serialize() []byte { + return (*(*[SizeofTcSfqQopt]byte)(unsafe.Pointer(x)))[:] +} + +// struct tc_sfqred_stats { +// __u32 prob_drop; /* Early drops, below max threshold */ +// __u32 forced_drop; /* Early drops, after max threshold */ +// __u32 prob_mark; /* Marked packets, below max threshold */ +// __u32 forced_mark; /* Marked packets, after max threshold */ +// __u32 prob_mark_head; /* Marked packets, below max threshold */ +// __u32 forced_mark_head;/* Marked packets, after max threshold */ +// }; +type TcSfqRedStats struct { + ProbDrop uint32 + ForcedDrop uint32 + ProbMark uint32 + ForcedMark uint32 + ProbMarkHead uint32 + ForcedMarkHead uint32 +} + +func (x *TcSfqRedStats) Len() int { + return SizeofTcSfqRedStats +} + +func DeserializeTcSfqRedStats(b []byte) *TcSfqRedStats { + return (*TcSfqRedStats)(unsafe.Pointer(&b[0:SizeofTcSfqRedStats][0])) +} + +func (x *TcSfqRedStats) Serialize() []byte { + return (*(*[SizeofTcSfqRedStats]byte)(unsafe.Pointer(x)))[:] +} + +// struct tc_sfq_qopt_v1 { +// struct tc_sfq_qopt v0; +// unsigned int depth; /* max number of packets per flow */ +// unsigned int headdrop; +// +// /* SFQRED parameters */ +// +// __u32 limit; /* HARD maximal flow queue length (bytes) */ +// __u32 qth_min; /* Min average length threshold (bytes) */ +// __u32 qth_max; /* Max average length threshold (bytes) */ +// unsigned char Wlog; /* log(W) */ +// unsigned char Plog; /* log(P_max/(qth_max-qth_min)) */ +// unsigned char Scell_log; /* cell size for idle damping */ +// unsigned char flags; +// __u32 max_P; /* probability, high resolution */ +// +// /* SFQRED stats */ +// +// struct tc_sfqred_stats stats; +// }; +type TcSfqQoptV1 struct { + TcSfqQopt + Depth uint32 + HeadDrop uint32 + Limit uint32 + QthMin uint32 + QthMax uint32 + Wlog byte + Plog byte + ScellLog byte + Flags byte + MaxP uint32 + TcSfqRedStats +} + +func (x *TcSfqQoptV1) Len() int { + return SizeofTcSfqQoptV1 +} + +func DeserializeTcSfqQoptV1(b []byte) *TcSfqQoptV1 { + return (*TcSfqQoptV1)(unsafe.Pointer(&b[0:SizeofTcSfqQoptV1][0])) +} + +func (x *TcSfqQoptV1) Serialize() []byte { + return (*(*[SizeofTcSfqQoptV1]byte)(unsafe.Pointer(x)))[:] +} + +// IPProto represents Flower ip_proto attribute +type IPProto uint8 + +const ( + IPPROTO_TCP IPProto = unix.IPPROTO_TCP + IPPROTO_UDP IPProto = unix.IPPROTO_UDP + IPPROTO_SCTP IPProto = unix.IPPROTO_SCTP + IPPROTO_ICMP IPProto = unix.IPPROTO_ICMP + IPPROTO_ICMPV6 IPProto = unix.IPPROTO_ICMPV6 +) + +func (i IPProto) Serialize() []byte { + arr := make([]byte, 1) + arr[0] = byte(i) + return arr +} + +func (i IPProto) String() string { + switch i { + case IPPROTO_TCP: + return "tcp" + case IPPROTO_UDP: + return "udp" + case IPPROTO_SCTP: + return "sctp" + case IPPROTO_ICMP: + return "icmp" + case IPPROTO_ICMPV6: + return "icmpv6" + } + return fmt.Sprintf("%d", i) +} + +const ( + MaxOffs = 128 + SizeOfPeditSel = 24 + SizeOfPeditKey = 24 + + TCA_PEDIT_KEY_EX_HTYPE = 1 + TCA_PEDIT_KEY_EX_CMD = 2 +) + +const ( + TCA_PEDIT_UNSPEC = iota + TCA_PEDIT_TM + TCA_PEDIT_PARMS + TCA_PEDIT_PAD + TCA_PEDIT_PARMS_EX + TCA_PEDIT_KEYS_EX + TCA_PEDIT_KEY_EX +) + +// /* TCA_PEDIT_KEY_EX_HDR_TYPE_NETWROK is a special case for legacy users. It +// * means no specific header type - offset is relative to the network layer +// */ +type PeditHeaderType uint16 + +const ( + TCA_PEDIT_KEY_EX_HDR_TYPE_NETWORK = iota + TCA_PEDIT_KEY_EX_HDR_TYPE_ETH + TCA_PEDIT_KEY_EX_HDR_TYPE_IP4 + TCA_PEDIT_KEY_EX_HDR_TYPE_IP6 + TCA_PEDIT_KEY_EX_HDR_TYPE_TCP + TCA_PEDIT_KEY_EX_HDR_TYPE_UDP + __PEDIT_HDR_TYPE_MAX +) + +type PeditCmd uint16 + +const ( + TCA_PEDIT_KEY_EX_CMD_SET = 0 + TCA_PEDIT_KEY_EX_CMD_ADD = 1 +) + +type TcPeditSel struct { + TcGen + NKeys uint8 + Flags uint8 +} + +func DeserializeTcPeditKey(b []byte) *TcPeditKey { + return (*TcPeditKey)(unsafe.Pointer(&b[0:SizeOfPeditKey][0])) +} + +func DeserializeTcPedit(b []byte) (*TcPeditSel, []TcPeditKey) { + x := &TcPeditSel{} + copy((*(*[SizeOfPeditSel]byte)(unsafe.Pointer(x)))[:SizeOfPeditSel], b) + + var keys []TcPeditKey + + next := SizeOfPeditKey + var i uint8 + for i = 0; i < x.NKeys; i++ { + keys = append(keys, *DeserializeTcPeditKey(b[next:])) + next += SizeOfPeditKey + } + + return x, keys +} + +type TcPeditKey struct { + Mask uint32 + Val uint32 + Off uint32 + At uint32 + OffMask uint32 + Shift uint32 +} + +type TcPeditKeyEx struct { + HeaderType PeditHeaderType + Cmd PeditCmd +} + +type TcPedit struct { + Sel TcPeditSel + Keys []TcPeditKey + KeysEx []TcPeditKeyEx + Extend uint8 +} + +func (p *TcPedit) Encode(parent *RtAttr) { + parent.AddRtAttr(TCA_ACT_KIND, ZeroTerminated("pedit")) + actOpts := parent.AddRtAttr(TCA_ACT_OPTIONS, nil) + + bbuf := bytes.NewBuffer(make([]byte, 0, int(unsafe.Sizeof(p.Sel)+unsafe.Sizeof(p.Keys)))) + + bbuf.Write((*(*[SizeOfPeditSel]byte)(unsafe.Pointer(&p.Sel)))[:]) + + for i := uint8(0); i < p.Sel.NKeys; i++ { + bbuf.Write((*(*[SizeOfPeditKey]byte)(unsafe.Pointer(&p.Keys[i])))[:]) + } + actOpts.AddRtAttr(TCA_PEDIT_PARMS_EX, bbuf.Bytes()) + + exAttrs := actOpts.AddRtAttr(int(TCA_PEDIT_KEYS_EX|NLA_F_NESTED), nil) + for i := uint8(0); i < p.Sel.NKeys; i++ { + keyAttr := exAttrs.AddRtAttr(int(TCA_PEDIT_KEY_EX|NLA_F_NESTED), nil) + + htypeBuf := make([]byte, 2) + cmdBuf := make([]byte, 2) + + NativeEndian().PutUint16(htypeBuf, uint16(p.KeysEx[i].HeaderType)) + NativeEndian().PutUint16(cmdBuf, uint16(p.KeysEx[i].Cmd)) + + keyAttr.AddRtAttr(TCA_PEDIT_KEY_EX_HTYPE, htypeBuf) + keyAttr.AddRtAttr(TCA_PEDIT_KEY_EX_CMD, cmdBuf) + } +} + +func (p *TcPedit) SetEthDst(mac net.HardwareAddr) { + u32 := NativeEndian().Uint32(mac) + u16 := NativeEndian().Uint16(mac[4:]) + + tKey := TcPeditKey{} + tKeyEx := TcPeditKeyEx{} + + tKey.Val = u32 + + tKeyEx.HeaderType = TCA_PEDIT_KEY_EX_HDR_TYPE_ETH + tKeyEx.Cmd = TCA_PEDIT_KEY_EX_CMD_SET + + p.Keys = append(p.Keys, tKey) + p.KeysEx = append(p.KeysEx, tKeyEx) + p.Sel.NKeys++ + + tKey = TcPeditKey{} + tKeyEx = TcPeditKeyEx{} + + tKey.Val = uint32(u16) + tKey.Mask = 0xffff0000 + tKey.Off = 4 + tKeyEx.HeaderType = TCA_PEDIT_KEY_EX_HDR_TYPE_ETH + tKeyEx.Cmd = TCA_PEDIT_KEY_EX_CMD_SET + + p.Keys = append(p.Keys, tKey) + p.KeysEx = append(p.KeysEx, tKeyEx) + + p.Sel.NKeys++ +} + +func (p *TcPedit) SetEthSrc(mac net.HardwareAddr) { + u16 := NativeEndian().Uint16(mac) + u32 := NativeEndian().Uint32(mac[2:]) + + tKey := TcPeditKey{} + tKeyEx := TcPeditKeyEx{} + + tKey.Val = uint32(u16) << 16 + tKey.Mask = 0x0000ffff + tKey.Off = 4 + + tKeyEx.HeaderType = TCA_PEDIT_KEY_EX_HDR_TYPE_ETH + tKeyEx.Cmd = TCA_PEDIT_KEY_EX_CMD_SET + + p.Keys = append(p.Keys, tKey) + p.KeysEx = append(p.KeysEx, tKeyEx) + p.Sel.NKeys++ + + tKey = TcPeditKey{} + tKeyEx = TcPeditKeyEx{} + + tKey.Val = u32 + tKey.Mask = 0 + tKey.Off = 8 + + tKeyEx.HeaderType = TCA_PEDIT_KEY_EX_HDR_TYPE_ETH + tKeyEx.Cmd = TCA_PEDIT_KEY_EX_CMD_SET + + p.Keys = append(p.Keys, tKey) + p.KeysEx = append(p.KeysEx, tKeyEx) + + p.Sel.NKeys++ +} + +func (p *TcPedit) SetIPv6Src(ip6 net.IP) { + u32 := NativeEndian().Uint32(ip6[:4]) + + tKey := TcPeditKey{} + tKeyEx := TcPeditKeyEx{} + + tKey.Val = u32 + tKey.Off = 8 + tKeyEx.HeaderType = TCA_PEDIT_KEY_EX_HDR_TYPE_IP6 + tKeyEx.Cmd = TCA_PEDIT_KEY_EX_CMD_SET + + p.Keys = append(p.Keys, tKey) + p.KeysEx = append(p.KeysEx, tKeyEx) + p.Sel.NKeys++ + + u32 = NativeEndian().Uint32(ip6[4:8]) + tKey = TcPeditKey{} + tKeyEx = TcPeditKeyEx{} + + tKey.Val = u32 + tKey.Off = 12 + tKeyEx.HeaderType = TCA_PEDIT_KEY_EX_HDR_TYPE_IP6 + tKeyEx.Cmd = TCA_PEDIT_KEY_EX_CMD_SET + + p.Keys = append(p.Keys, tKey) + p.KeysEx = append(p.KeysEx, tKeyEx) + + p.Sel.NKeys++ + + u32 = NativeEndian().Uint32(ip6[8:12]) + tKey = TcPeditKey{} + tKeyEx = TcPeditKeyEx{} + + tKey.Val = u32 + tKey.Off = 16 + tKeyEx.HeaderType = TCA_PEDIT_KEY_EX_HDR_TYPE_IP6 + tKeyEx.Cmd = TCA_PEDIT_KEY_EX_CMD_SET + + p.Keys = append(p.Keys, tKey) + p.KeysEx = append(p.KeysEx, tKeyEx) + + p.Sel.NKeys++ + + u32 = NativeEndian().Uint32(ip6[12:16]) + tKey = TcPeditKey{} + tKeyEx = TcPeditKeyEx{} + + tKey.Val = u32 + tKey.Off = 20 + tKeyEx.HeaderType = TCA_PEDIT_KEY_EX_HDR_TYPE_IP6 + tKeyEx.Cmd = TCA_PEDIT_KEY_EX_CMD_SET + + p.Keys = append(p.Keys, tKey) + p.KeysEx = append(p.KeysEx, tKeyEx) + + p.Sel.NKeys++ +} + +func (p *TcPedit) SetDstIP(ip net.IP) { + if ip.To4() != nil { + p.SetIPv4Dst(ip) + } else { + p.SetIPv6Dst(ip) + } +} + +func (p *TcPedit) SetSrcIP(ip net.IP) { + if ip.To4() != nil { + p.SetIPv4Src(ip) + } else { + p.SetIPv6Src(ip) + } +} + +func (p *TcPedit) SetIPv6Dst(ip6 net.IP) { + u32 := NativeEndian().Uint32(ip6[:4]) + + tKey := TcPeditKey{} + tKeyEx := TcPeditKeyEx{} + + tKey.Val = u32 + tKey.Off = 24 + tKeyEx.HeaderType = TCA_PEDIT_KEY_EX_HDR_TYPE_IP6 + tKeyEx.Cmd = TCA_PEDIT_KEY_EX_CMD_SET + + p.Keys = append(p.Keys, tKey) + p.KeysEx = append(p.KeysEx, tKeyEx) + p.Sel.NKeys++ + + u32 = NativeEndian().Uint32(ip6[4:8]) + tKey = TcPeditKey{} + tKeyEx = TcPeditKeyEx{} + + tKey.Val = u32 + tKey.Off = 28 + tKeyEx.HeaderType = TCA_PEDIT_KEY_EX_HDR_TYPE_IP6 + tKeyEx.Cmd = TCA_PEDIT_KEY_EX_CMD_SET + + p.Keys = append(p.Keys, tKey) + p.KeysEx = append(p.KeysEx, tKeyEx) + + p.Sel.NKeys++ + + u32 = NativeEndian().Uint32(ip6[8:12]) + tKey = TcPeditKey{} + tKeyEx = TcPeditKeyEx{} + + tKey.Val = u32 + tKey.Off = 32 + tKeyEx.HeaderType = TCA_PEDIT_KEY_EX_HDR_TYPE_IP6 + tKeyEx.Cmd = TCA_PEDIT_KEY_EX_CMD_SET + + p.Keys = append(p.Keys, tKey) + p.KeysEx = append(p.KeysEx, tKeyEx) + + p.Sel.NKeys++ + + u32 = NativeEndian().Uint32(ip6[12:16]) + tKey = TcPeditKey{} + tKeyEx = TcPeditKeyEx{} + + tKey.Val = u32 + tKey.Off = 36 + tKeyEx.HeaderType = TCA_PEDIT_KEY_EX_HDR_TYPE_IP6 + tKeyEx.Cmd = TCA_PEDIT_KEY_EX_CMD_SET + + p.Keys = append(p.Keys, tKey) + p.KeysEx = append(p.KeysEx, tKeyEx) + + p.Sel.NKeys++ +} + +func (p *TcPedit) SetIPv4Src(ip net.IP) { + u32 := NativeEndian().Uint32(ip[:4]) + + tKey := TcPeditKey{} + tKeyEx := TcPeditKeyEx{} + + tKey.Val = u32 + tKey.Off = 12 + tKeyEx.HeaderType = TCA_PEDIT_KEY_EX_HDR_TYPE_IP4 + tKeyEx.Cmd = TCA_PEDIT_KEY_EX_CMD_SET + + p.Keys = append(p.Keys, tKey) + p.KeysEx = append(p.KeysEx, tKeyEx) + p.Sel.NKeys++ +} + +func (p *TcPedit) SetIPv4Dst(ip net.IP) { + u32 := NativeEndian().Uint32(ip[:4]) + + tKey := TcPeditKey{} + tKeyEx := TcPeditKeyEx{} + + tKey.Val = u32 + tKey.Off = 16 + tKeyEx.HeaderType = TCA_PEDIT_KEY_EX_HDR_TYPE_IP4 + tKeyEx.Cmd = TCA_PEDIT_KEY_EX_CMD_SET + + p.Keys = append(p.Keys, tKey) + p.KeysEx = append(p.KeysEx, tKeyEx) + p.Sel.NKeys++ +} + +// SetDstPort only tcp and udp are supported to set port +func (p *TcPedit) SetDstPort(dstPort uint16, protocol uint8) { + tKey := TcPeditKey{} + tKeyEx := TcPeditKeyEx{} + + switch protocol { + case unix.IPPROTO_TCP: + tKeyEx.HeaderType = TCA_PEDIT_KEY_EX_HDR_TYPE_TCP + case unix.IPPROTO_UDP: + tKeyEx.HeaderType = TCA_PEDIT_KEY_EX_HDR_TYPE_UDP + default: + return + } + + tKeyEx.Cmd = TCA_PEDIT_KEY_EX_CMD_SET + + tKey.Val = uint32(Swap16(dstPort)) << 16 + tKey.Mask = 0x0000ffff + p.Keys = append(p.Keys, tKey) + p.KeysEx = append(p.KeysEx, tKeyEx) + p.Sel.NKeys++ +} + +// SetSrcPort only tcp and udp are supported to set port +func (p *TcPedit) SetSrcPort(srcPort uint16, protocol uint8) { + tKey := TcPeditKey{} + tKeyEx := TcPeditKeyEx{} + + switch protocol { + case unix.IPPROTO_TCP: + tKeyEx.HeaderType = TCA_PEDIT_KEY_EX_HDR_TYPE_TCP + case unix.IPPROTO_UDP: + tKeyEx.HeaderType = TCA_PEDIT_KEY_EX_HDR_TYPE_UDP + default: + return + } + + tKeyEx.Cmd = TCA_PEDIT_KEY_EX_CMD_SET + + tKey.Val = uint32(Swap16(srcPort)) + tKey.Mask = 0xffff0000 + p.Keys = append(p.Keys, tKey) + p.KeysEx = append(p.KeysEx, tKeyEx) + p.Sel.NKeys++ +} diff --git a/vendor/github.com/vishvananda/netlink/nl/vdpa_linux.go b/vendor/github.com/vishvananda/netlink/nl/vdpa_linux.go new file mode 100644 index 000000000..f209125df --- /dev/null +++ b/vendor/github.com/vishvananda/netlink/nl/vdpa_linux.go @@ -0,0 +1,41 @@ +package nl + +const ( + VDPA_GENL_NAME = "vdpa" + VDPA_GENL_VERSION = 0x1 +) + +const ( + VDPA_CMD_UNSPEC = iota + VDPA_CMD_MGMTDEV_NEW + VDPA_CMD_MGMTDEV_GET /* can dump */ + VDPA_CMD_DEV_NEW + VDPA_CMD_DEV_DEL + VDPA_CMD_DEV_GET /* can dump */ + VDPA_CMD_DEV_CONFIG_GET /* can dump */ + VDPA_CMD_DEV_VSTATS_GET +) + +const ( + VDPA_ATTR_UNSPEC = iota + VDPA_ATTR_MGMTDEV_BUS_NAME + VDPA_ATTR_MGMTDEV_DEV_NAME + VDPA_ATTR_MGMTDEV_SUPPORTED_CLASSES + VDPA_ATTR_DEV_NAME + VDPA_ATTR_DEV_ID + VDPA_ATTR_DEV_VENDOR_ID + VDPA_ATTR_DEV_MAX_VQS + VDPA_ATTR_DEV_MAX_VQ_SIZE + VDPA_ATTR_DEV_MIN_VQ_SIZE + VDPA_ATTR_DEV_NET_CFG_MACADDR + VDPA_ATTR_DEV_NET_STATUS + VDPA_ATTR_DEV_NET_CFG_MAX_VQP + VDPA_ATTR_DEV_NET_CFG_MTU + VDPA_ATTR_DEV_NEGOTIATED_FEATURES + VDPA_ATTR_DEV_MGMTDEV_MAX_VQS + VDPA_ATTR_DEV_SUPPORTED_FEATURES + VDPA_ATTR_DEV_QUEUE_INDEX + VDPA_ATTR_DEV_VENDOR_ATTR_NAME + VDPA_ATTR_DEV_VENDOR_ATTR_VALUE + VDPA_ATTR_DEV_FEATURES +) diff --git a/vendor/github.com/vishvananda/netlink/nl/xfrm_linux.go b/vendor/github.com/vishvananda/netlink/nl/xfrm_linux.go index dce9073f7..cdb318ba5 100644 --- a/vendor/github.com/vishvananda/netlink/nl/xfrm_linux.go +++ b/vendor/github.com/vishvananda/netlink/nl/xfrm_linux.go @@ -131,7 +131,15 @@ func (x *XfrmAddress) ToIP() net.IP { return ip } -func (x *XfrmAddress) ToIPNet(prefixlen uint8) *net.IPNet { +// family is only used when x and prefixlen are both 0 +func (x *XfrmAddress) ToIPNet(prefixlen uint8, family uint16) *net.IPNet { + empty := [SizeofXfrmAddress]byte{} + if bytes.Equal(x[:], empty[:]) && prefixlen == 0 { + if family == FAMILY_V6 { + return &net.IPNet{IP: net.ParseIP("::"), Mask: net.CIDRMask(int(prefixlen), 128)} + } + return &net.IPNet{IP: net.ParseIP("0.0.0.0"), Mask: net.CIDRMask(int(prefixlen), 32)} + } ip := x.ToIP() if GetIPFamily(ip) == FAMILY_V4 { return &net.IPNet{IP: ip, Mask: net.CIDRMask(int(prefixlen), 32)} diff --git a/vendor/github.com/vishvananda/netlink/nl/xfrm_state_linux.go b/vendor/github.com/vishvananda/netlink/nl/xfrm_state_linux.go index b6290fd54..e8920b9a6 100644 --- a/vendor/github.com/vishvananda/netlink/nl/xfrm_state_linux.go +++ b/vendor/github.com/vishvananda/netlink/nl/xfrm_state_linux.go @@ -13,8 +13,9 @@ const ( SizeofXfrmAlgoAuth = 0x48 SizeofXfrmAlgoAEAD = 0x48 SizeofXfrmEncapTmpl = 0x18 - SizeofXfrmUsersaFlush = 0x8 + SizeofXfrmUsersaFlush = 0x1 SizeofXfrmReplayStateEsn = 0x18 + SizeofXfrmReplayState = 0x0c ) const ( @@ -28,6 +29,11 @@ const ( XFRM_STATE_ESN = 128 ) +const ( + XFRM_SA_XFLAG_DONT_ENCAP_DSCP = 1 + XFRM_SA_XFLAG_OSEQ_MAY_WRAP = 2 +) + // struct xfrm_usersa_id { // xfrm_address_t daddr; // __be32 spi; @@ -103,6 +109,7 @@ func (msg *XfrmStats) Serialize() []byte { // }; // // #define XFRM_SA_XFLAG_DONT_ENCAP_DSCP 1 +// #define XFRM_SA_XFLAG_OSEQ_MAY_WRAP 2 // type XfrmUsersaInfo struct { @@ -332,3 +339,23 @@ func (msg *XfrmReplayStateEsn) Serialize() []byte { // We deliberately do not pass Bmp, as it gets set by the kernel. return (*(*[SizeofXfrmReplayStateEsn]byte)(unsafe.Pointer(msg)))[:] } + +// struct xfrm_replay_state { +// __u32 oseq; +// __u32 seq; +// __u32 bitmap; +// }; + +type XfrmReplayState struct { + OSeq uint32 + Seq uint32 + BitMap uint32 +} + +func DeserializeXfrmReplayState(b []byte) *XfrmReplayState { + return (*XfrmReplayState)(unsafe.Pointer(&b[0:SizeofXfrmReplayState][0])) +} + +func (msg *XfrmReplayState) Serialize() []byte { + return (*(*[SizeofXfrmReplayState]byte)(unsafe.Pointer(msg)))[:] +} diff --git a/vendor/github.com/vishvananda/netlink/proc_event_linux.go b/vendor/github.com/vishvananda/netlink/proc_event_linux.go new file mode 100644 index 000000000..ac8762bd8 --- /dev/null +++ b/vendor/github.com/vishvananda/netlink/proc_event_linux.go @@ -0,0 +1,208 @@ +package netlink + +import ( + "bytes" + "encoding/binary" + "fmt" + "os" + "syscall" + + "github.com/vishvananda/netlink/nl" + "github.com/vishvananda/netns" + "golang.org/x/sys/unix" +) + +const CN_IDX_PROC = 0x1 + +const ( + PROC_EVENT_NONE = 0x00000000 + PROC_EVENT_FORK = 0x00000001 + PROC_EVENT_EXEC = 0x00000002 + PROC_EVENT_UID = 0x00000004 + PROC_EVENT_GID = 0x00000040 + PROC_EVENT_SID = 0x00000080 + PROC_EVENT_PTRACE = 0x00000100 + PROC_EVENT_COMM = 0x00000200 + PROC_EVENT_COREDUMP = 0x40000000 + PROC_EVENT_EXIT = 0x80000000 +) + +const ( + CN_VAL_PROC = 0x1 + PROC_CN_MCAST_LISTEN = 0x1 +) + +type ProcEventMsg interface { + Pid() uint32 + Tgid() uint32 +} + +type ProcEventHeader struct { + What uint32 + CPU uint32 + Timestamp uint64 +} + +type ProcEvent struct { + ProcEventHeader + Msg ProcEventMsg +} + +func (pe *ProcEvent) setHeader(h ProcEventHeader) { + pe.What = h.What + pe.CPU = h.CPU + pe.Timestamp = h.Timestamp +} + +type ExitProcEvent struct { + ProcessPid uint32 + ProcessTgid uint32 + ExitCode uint32 + ExitSignal uint32 + ParentPid uint32 + ParentTgid uint32 +} + +func (e *ExitProcEvent) Pid() uint32 { + return e.ProcessPid +} + +func (e *ExitProcEvent) Tgid() uint32 { + return e.ProcessTgid +} + +type ExecProcEvent struct { + ProcessPid uint32 + ProcessTgid uint32 +} + +func (e *ExecProcEvent) Pid() uint32 { + return e.ProcessPid +} + +func (e *ExecProcEvent) Tgid() uint32 { + return e.ProcessTgid +} + +type ForkProcEvent struct { + ParentPid uint32 + ParentTgid uint32 + ChildPid uint32 + ChildTgid uint32 +} + +func (e *ForkProcEvent) Pid() uint32 { + return e.ParentPid +} + +func (e *ForkProcEvent) Tgid() uint32 { + return e.ParentTgid +} + +type CommProcEvent struct { + ProcessPid uint32 + ProcessTgid uint32 + Comm [16]byte +} + +func (e *CommProcEvent) Pid() uint32 { + return e.ProcessPid +} + +func (e *CommProcEvent) Tgid() uint32 { + return e.ProcessTgid +} + +func ProcEventMonitor(ch chan<- ProcEvent, done <-chan struct{}, errorChan chan<- error) error { + h, err := NewHandle() + if err != nil { + return err + } + defer h.Delete() + + s, err := nl.SubscribeAt(netns.None(), netns.None(), unix.NETLINK_CONNECTOR, CN_IDX_PROC) + if err != nil { + return err + } + + var nlmsg nl.NetlinkRequest + + nlmsg.Pid = uint32(os.Getpid()) + nlmsg.Type = unix.NLMSG_DONE + nlmsg.Len = uint32(unix.SizeofNlMsghdr) + + cm := nl.NewCnMsg(CN_IDX_PROC, CN_VAL_PROC, PROC_CN_MCAST_LISTEN) + nlmsg.AddData(cm) + + s.Send(&nlmsg) + + if done != nil { + go func() { + <-done + s.Close() + }() + } + + go func() { + defer close(ch) + for { + msgs, from, err := s.Receive() + if err != nil { + errorChan <- err + return + } + if from.Pid != nl.PidKernel { + errorChan <- fmt.Errorf("Wrong sender portid %d, expected %d", from.Pid, nl.PidKernel) + return + } + + for _, m := range msgs { + e := parseNetlinkMessage(m) + if e != nil { + ch <- *e + } + } + + } + }() + + return nil +} + +func parseNetlinkMessage(m syscall.NetlinkMessage) *ProcEvent { + if m.Header.Type == unix.NLMSG_DONE { + buf := bytes.NewBuffer(m.Data) + msg := &nl.CnMsg{} + hdr := &ProcEventHeader{} + binary.Read(buf, nl.NativeEndian(), msg) + binary.Read(buf, nl.NativeEndian(), hdr) + + pe := &ProcEvent{} + pe.setHeader(*hdr) + switch hdr.What { + case PROC_EVENT_EXIT: + event := &ExitProcEvent{} + binary.Read(buf, nl.NativeEndian(), event) + pe.Msg = event + return pe + case PROC_EVENT_FORK: + event := &ForkProcEvent{} + binary.Read(buf, nl.NativeEndian(), event) + pe.Msg = event + return pe + case PROC_EVENT_EXEC: + event := &ExecProcEvent{} + binary.Read(buf, nl.NativeEndian(), event) + pe.Msg = event + return pe + case PROC_EVENT_COMM: + event := &CommProcEvent{} + binary.Read(buf, nl.NativeEndian(), event) + pe.Msg = event + return pe + } + return nil + } + + return nil +} diff --git a/vendor/github.com/vishvananda/netlink/protinfo.go b/vendor/github.com/vishvananda/netlink/protinfo.go index 60b23b374..0163cba3a 100644 --- a/vendor/github.com/vishvananda/netlink/protinfo.go +++ b/vendor/github.com/vishvananda/netlink/protinfo.go @@ -6,14 +6,16 @@ import ( // Protinfo represents bridge flags from netlink. type Protinfo struct { - Hairpin bool - Guard bool - FastLeave bool - RootBlock bool - Learning bool - Flood bool - ProxyArp bool - ProxyArpWiFi bool + Hairpin bool + Guard bool + FastLeave bool + RootBlock bool + Learning bool + Flood bool + ProxyArp bool + ProxyArpWiFi bool + Isolated bool + NeighSuppress bool } // String returns a list of enabled flags @@ -47,6 +49,12 @@ func (prot *Protinfo) String() string { if prot.ProxyArpWiFi { boolStrings = append(boolStrings, "ProxyArpWiFi") } + if prot.Isolated { + boolStrings = append(boolStrings, "Isolated") + } + if prot.NeighSuppress { + boolStrings = append(boolStrings, "NeighSuppress") + } return strings.Join(boolStrings, " ") } diff --git a/vendor/github.com/vishvananda/netlink/protinfo_linux.go b/vendor/github.com/vishvananda/netlink/protinfo_linux.go index 15b65123c..1ba25d3cd 100644 --- a/vendor/github.com/vishvananda/netlink/protinfo_linux.go +++ b/vendor/github.com/vishvananda/netlink/protinfo_linux.go @@ -68,6 +68,10 @@ func parseProtinfo(infos []syscall.NetlinkRouteAttr) (pi Protinfo) { pi.ProxyArp = byteToBool(info.Value[0]) case nl.IFLA_BRPORT_PROXYARP_WIFI: pi.ProxyArpWiFi = byteToBool(info.Value[0]) + case nl.IFLA_BRPORT_ISOLATED: + pi.Isolated = byteToBool(info.Value[0]) + case nl.IFLA_BRPORT_NEIGH_SUPPRESS: + pi.NeighSuppress = byteToBool(info.Value[0]) } } return diff --git a/vendor/github.com/vishvananda/netlink/qdisc.go b/vendor/github.com/vishvananda/netlink/qdisc.go index af78305ac..067743d39 100644 --- a/vendor/github.com/vishvananda/netlink/qdisc.go +++ b/vendor/github.com/vishvananda/netlink/qdisc.go @@ -17,19 +17,29 @@ const ( HANDLE_MIN_EGRESS = 0xFFFFFFF3 ) +const ( + HORIZON_DROP_POLICY_CAP = 0 + HORIZON_DROP_POLICY_DROP = 1 + HORIZON_DROP_POLICY_DEFAULT = 255 +) + type Qdisc interface { Attrs() *QdiscAttrs Type() string } +type QdiscStatistics ClassStatistics + // QdiscAttrs represents a netlink qdisc. A qdisc is associated with a link, // has a handle, a parent and a refcnt. The root qdisc of a device should // have parent == HANDLE_ROOT. type QdiscAttrs struct { - LinkIndex int - Handle uint32 - Parent uint32 - Refcnt uint32 // read only + LinkIndex int + Handle uint32 + Parent uint32 + Refcnt uint32 // read only + IngressBlock *uint32 + Statistics *QdiscStatistics } func (q QdiscAttrs) String() string { @@ -113,6 +123,7 @@ type Htb struct { Defcls uint32 Debug uint32 DirectPkts uint32 + DirectQlen *uint32 } func NewHtb(attrs QdiscAttrs) *Htb { @@ -123,6 +134,7 @@ func NewHtb(attrs QdiscAttrs) *Htb { Rate2Quantum: 10, Debug: 0, DirectPkts: 0, + DirectQlen: nil, } } @@ -150,6 +162,7 @@ type NetemQdiscAttrs struct { ReorderCorr float32 // in % CorruptProb float32 // in % CorruptCorr float32 // in % + Rate64 uint64 } func (q NetemQdiscAttrs) String() string { @@ -174,6 +187,7 @@ type Netem struct { ReorderCorr uint32 CorruptProb uint32 CorruptCorr uint32 + Rate64 uint64 } func (netem *Netem) String() string { @@ -210,6 +224,19 @@ func (qdisc *Tbf) Type() string { return "tbf" } +// Clsact is a qdisc for adding filters +type Clsact struct { + QdiscAttrs +} + +func (qdisc *Clsact) Attrs() *QdiscAttrs { + return &qdisc.QdiscAttrs +} + +func (qdisc *Clsact) Type() string { + return "clsact" +} + // Ingress is a qdisc for adding ingress filters type Ingress struct { QdiscAttrs @@ -278,22 +305,25 @@ type Fq struct { FlowDefaultRate uint32 FlowMaxRate uint32 // called BucketsLog under the hood - Buckets uint32 - FlowRefillDelay uint32 - LowRateThreshold uint32 + Buckets uint32 + FlowRefillDelay uint32 + LowRateThreshold uint32 + Horizon uint32 + HorizonDropPolicy uint8 } func (fq *Fq) String() string { return fmt.Sprintf( - "{PacketLimit: %v, FlowPacketLimit: %v, Quantum: %v, InitialQuantum: %v, Pacing: %v, FlowDefaultRate: %v, FlowMaxRate: %v, Buckets: %v, FlowRefillDelay: %v, LowRateThreshold: %v}", - fq.PacketLimit, fq.FlowPacketLimit, fq.Quantum, fq.InitialQuantum, fq.Pacing, fq.FlowDefaultRate, fq.FlowMaxRate, fq.Buckets, fq.FlowRefillDelay, fq.LowRateThreshold, + "{PacketLimit: %v, FlowPacketLimit: %v, Quantum: %v, InitialQuantum: %v, Pacing: %v, FlowDefaultRate: %v, FlowMaxRate: %v, Buckets: %v, FlowRefillDelay: %v, LowRateThreshold: %v, Horizon: %v, HorizonDropPolicy: %v}", + fq.PacketLimit, fq.FlowPacketLimit, fq.Quantum, fq.InitialQuantum, fq.Pacing, fq.FlowDefaultRate, fq.FlowMaxRate, fq.Buckets, fq.FlowRefillDelay, fq.LowRateThreshold, fq.Horizon, fq.HorizonDropPolicy, ) } func NewFq(attrs QdiscAttrs) *Fq { return &Fq{ - QdiscAttrs: attrs, - Pacing: 1, + QdiscAttrs: attrs, + Pacing: 1, + HorizonDropPolicy: HORIZON_DROP_POLICY_DEFAULT, } } @@ -308,13 +338,15 @@ func (qdisc *Fq) Type() string { // FQ_Codel (Fair Queuing Controlled Delay) is queuing discipline that combines Fair Queuing with the CoDel AQM scheme. type FqCodel struct { QdiscAttrs - Target uint32 - Limit uint32 - Interval uint32 - ECN uint32 - Flows uint32 - Quantum uint32 - // There are some more attributes here, but support for them seems not ubiquitous + Target uint32 + Limit uint32 + Interval uint32 + ECN uint32 + Flows uint32 + Quantum uint32 + CEThreshold uint32 + DropBatchSize uint32 + MemoryLimit uint32 } func (fqcodel *FqCodel) String() string { @@ -338,3 +370,27 @@ func (qdisc *FqCodel) Attrs() *QdiscAttrs { func (qdisc *FqCodel) Type() string { return "fq_codel" } + +type Sfq struct { + QdiscAttrs + // TODO: Only the simplified options for SFQ are handled here. Support for the extended one can be added later. + Quantum uint8 + Perturb uint8 + Limit uint32 + Divisor uint8 +} + +func (sfq *Sfq) String() string { + return fmt.Sprintf( + "{%v -- Quantum: %v, Perturb: %v, Limit: %v, Divisor: %v}", + sfq.Attrs(), sfq.Quantum, sfq.Perturb, sfq.Limit, sfq.Divisor, + ) +} + +func (qdisc *Sfq) Attrs() *QdiscAttrs { + return &qdisc.QdiscAttrs +} + +func (qdisc *Sfq) Type() string { + return "sfq" +} diff --git a/vendor/github.com/vishvananda/netlink/qdisc_linux.go b/vendor/github.com/vishvananda/netlink/qdisc_linux.go index e9eee5908..e732ae3bd 100644 --- a/vendor/github.com/vishvananda/netlink/qdisc_linux.go +++ b/vendor/github.com/vishvananda/netlink/qdisc_linux.go @@ -5,6 +5,7 @@ import ( "io/ioutil" "strconv" "strings" + "sync" "syscall" "github.com/vishvananda/netlink/nl" @@ -17,6 +18,7 @@ func NewNetem(attrs QdiscAttrs, nattrs NetemQdiscAttrs) *Netem { var lossCorr, delayCorr, duplicateCorr uint32 var reorderProb, reorderCorr uint32 var corruptProb, corruptCorr uint32 + var rate64 uint64 latency := nattrs.Latency loss := Percentage2u32(nattrs.Loss) @@ -57,6 +59,7 @@ func NewNetem(attrs QdiscAttrs, nattrs NetemQdiscAttrs) *Netem { corruptProb = Percentage2u32(nattrs.CorruptProb) corruptCorr = Percentage2u32(nattrs.CorruptCorr) + rate64 = nattrs.Rate64 return &Netem{ QdiscAttrs: attrs, @@ -73,6 +76,7 @@ func NewNetem(attrs QdiscAttrs, nattrs NetemQdiscAttrs) *Netem { ReorderCorr: reorderCorr, CorruptProb: corruptProb, CorruptCorr: corruptCorr, + Rate64: rate64, } } @@ -159,6 +163,9 @@ func (h *Handle) qdiscModify(cmd, flags int, qdisc Qdisc) error { func qdiscPayload(req *nl.NetlinkRequest, qdisc Qdisc) error { req.AddData(nl.NewRtAttr(nl.TCA_KIND, nl.ZeroTerminated(qdisc.Type()))) + if qdisc.Attrs().IngressBlock != nil { + req.AddData(nl.NewRtAttr(nl.TCA_INGRESS_BLOCK, nl.Uint32Attr(*qdisc.Attrs().IngressBlock))) + } options := nl.NewRtAttr(nl.TCA_OPTIONS, nil) @@ -194,7 +201,9 @@ func qdiscPayload(req *nl.NetlinkRequest, qdisc Qdisc) error { opt.Debug = qdisc.Debug opt.DirectPkts = qdisc.DirectPkts options.AddRtAttr(nl.TCA_HTB_INIT, opt.Serialize()) - // options.AddRtAttr(nl.TCA_HTB_DIRECT_QLEN, opt.Serialize()) + if qdisc.DirectQlen != nil { + options.AddRtAttr(nl.TCA_HTB_DIRECT_QLEN, nl.Uint32Attr(*qdisc.DirectQlen)) + } case *Hfsc: opt := nl.TcHfscOpt{} opt.Defcls = qdisc.Defcls @@ -231,6 +240,19 @@ func qdiscPayload(req *nl.NetlinkRequest, qdisc Qdisc) error { if reorder.Probability > 0 { options.AddRtAttr(nl.TCA_NETEM_REORDER, reorder.Serialize()) } + // Rate + if qdisc.Rate64 > 0 { + rate := nl.TcNetemRate{} + if qdisc.Rate64 >= uint64(1<<32) { + options.AddRtAttr(nl.TCA_NETEM_RATE64, nl.Uint64Attr(qdisc.Rate64)) + rate.Rate = ^uint32(0) + } else { + rate.Rate = uint32(qdisc.Rate64) + } + options.AddRtAttr(nl.TCA_NETEM_RATE, rate.Serialize()) + } + case *Clsact: + options = nil case *Ingress: // ingress filters must use the proper handle if qdisc.Attrs().Parent != HANDLE_INGRESS { @@ -250,13 +272,24 @@ func qdiscPayload(req *nl.NetlinkRequest, qdisc Qdisc) error { if qdisc.Quantum > 0 { options.AddRtAttr(nl.TCA_FQ_CODEL_QUANTUM, nl.Uint32Attr((uint32(qdisc.Quantum)))) } - + if qdisc.CEThreshold > 0 { + options.AddRtAttr(nl.TCA_FQ_CODEL_CE_THRESHOLD, nl.Uint32Attr(qdisc.CEThreshold)) + } + if qdisc.DropBatchSize > 0 { + options.AddRtAttr(nl.TCA_FQ_CODEL_DROP_BATCH_SIZE, nl.Uint32Attr(qdisc.DropBatchSize)) + } + if qdisc.MemoryLimit > 0 { + options.AddRtAttr(nl.TCA_FQ_CODEL_MEMORY_LIMIT, nl.Uint32Attr(qdisc.MemoryLimit)) + } case *Fq: options.AddRtAttr(nl.TCA_FQ_RATE_ENABLE, nl.Uint32Attr((uint32(qdisc.Pacing)))) if qdisc.Buckets > 0 { options.AddRtAttr(nl.TCA_FQ_BUCKETS_LOG, nl.Uint32Attr((uint32(qdisc.Buckets)))) } + if qdisc.PacketLimit > 0 { + options.AddRtAttr(nl.TCA_FQ_PLIMIT, nl.Uint32Attr((uint32(qdisc.PacketLimit)))) + } if qdisc.LowRateThreshold > 0 { options.AddRtAttr(nl.TCA_FQ_LOW_RATE_THRESHOLD, nl.Uint32Attr((uint32(qdisc.LowRateThreshold)))) } @@ -278,6 +311,20 @@ func qdiscPayload(req *nl.NetlinkRequest, qdisc Qdisc) error { if qdisc.FlowDefaultRate > 0 { options.AddRtAttr(nl.TCA_FQ_FLOW_DEFAULT_RATE, nl.Uint32Attr((uint32(qdisc.FlowDefaultRate)))) } + if qdisc.Horizon > 0 { + options.AddRtAttr(nl.TCA_FQ_HORIZON, nl.Uint32Attr(qdisc.Horizon)) + } + if qdisc.HorizonDropPolicy != HORIZON_DROP_POLICY_DEFAULT { + options.AddRtAttr(nl.TCA_FQ_HORIZON_DROP, nl.Uint8Attr(qdisc.HorizonDropPolicy)) + } + case *Sfq: + opt := nl.TcSfqQoptV1{} + opt.TcSfqQopt.Quantum = qdisc.Quantum + opt.TcSfqQopt.Perturb = int32(qdisc.Perturb) + opt.TcSfqQopt.Limit = qdisc.Limit + opt.TcSfqQopt.Divisor = qdisc.Divisor + + options = nl.NewRtAttr(nl.TCA_OPTIONS, opt.Serialize()) default: options = nil } @@ -362,6 +409,10 @@ func (h *Handle) QdiscList(link Link) ([]Qdisc, error) { qdisc = &FqCodel{} case "netem": qdisc = &Netem{} + case "sfq": + qdisc = &Sfq{} + case "clsact": + qdisc = &Clsact{} default: qdisc = &GenericQdisc{QdiscType: qdiscType} } @@ -417,9 +468,29 @@ func (h *Handle) QdiscList(link Link) ([]Qdisc, error) { if err := parseNetemData(qdisc, attr.Value); err != nil { return nil, err } + case "sfq": + if err := parseSfqData(qdisc, attr.Value); err != nil { + return nil, err + } // no options for ingress } + case nl.TCA_INGRESS_BLOCK: + ingressBlock := new(uint32) + *ingressBlock = native.Uint32(attr.Value) + base.IngressBlock = ingressBlock + case nl.TCA_STATS: + s, err := parseTcStats(attr.Value) + if err != nil { + return nil, err + } + base.Statistics = (*QdiscStatistics)(s) + case nl.TCA_STATS2: + s, err := parseTcStats2(attr.Value) + if err != nil { + return nil, err + } + base.Statistics = (*QdiscStatistics)(s) } } *qdisc.Attrs() = base @@ -446,7 +517,6 @@ func parsePrioData(qdisc Qdisc, value []byte) error { } func parseHtbData(qdisc Qdisc, data []syscall.NetlinkRouteAttr) error { - native = nl.NativeEndian() htb := qdisc.(*Htb) for _, datum := range data { switch datum.Attr.Type { @@ -458,15 +528,14 @@ func parseHtbData(qdisc Qdisc, data []syscall.NetlinkRouteAttr) error { htb.Debug = opt.Debug htb.DirectPkts = opt.DirectPkts case nl.TCA_HTB_DIRECT_QLEN: - // TODO - //htb.DirectQlen = native.uint32(datum.Value) + directQlen := native.Uint32(datum.Value) + htb.DirectQlen = &directQlen } } return nil } func parseFqCodelData(qdisc Qdisc, data []syscall.NetlinkRouteAttr) error { - native = nl.NativeEndian() fqCodel := qdisc.(*FqCodel) for _, datum := range data { @@ -483,6 +552,12 @@ func parseFqCodelData(qdisc Qdisc, data []syscall.NetlinkRouteAttr) error { fqCodel.Flows = native.Uint32(datum.Value) case nl.TCA_FQ_CODEL_QUANTUM: fqCodel.Quantum = native.Uint32(datum.Value) + case nl.TCA_FQ_CODEL_CE_THRESHOLD: + fqCodel.CEThreshold = native.Uint32(datum.Value) + case nl.TCA_FQ_CODEL_DROP_BATCH_SIZE: + fqCodel.DropBatchSize = native.Uint32(datum.Value) + case nl.TCA_FQ_CODEL_MEMORY_LIMIT: + fqCodel.MemoryLimit = native.Uint32(datum.Value) } } return nil @@ -490,13 +565,11 @@ func parseFqCodelData(qdisc Qdisc, data []syscall.NetlinkRouteAttr) error { func parseHfscData(qdisc Qdisc, data []byte) error { Hfsc := qdisc.(*Hfsc) - native = nl.NativeEndian() Hfsc.Defcls = native.Uint16(data) return nil } func parseFqData(qdisc Qdisc, data []syscall.NetlinkRouteAttr) error { - native = nl.NativeEndian() fq := qdisc.(*Fq) for _, datum := range data { switch datum.Attr.Type { @@ -522,6 +595,11 @@ func parseFqData(qdisc Qdisc, data []syscall.NetlinkRouteAttr) error { fq.FlowMaxRate = native.Uint32(datum.Value) case nl.TCA_FQ_FLOW_DEFAULT_RATE: fq.FlowDefaultRate = native.Uint32(datum.Value) + case nl.TCA_FQ_HORIZON: + fq.Horizon = native.Uint32(datum.Value) + case nl.TCA_FQ_HORIZON_DROP: + fq.HorizonDropPolicy = datum.Value[0] + } } return nil @@ -540,6 +618,8 @@ func parseNetemData(qdisc Qdisc, value []byte) error { if err != nil { return err } + var rate *nl.TcNetemRate + var rate64 uint64 for _, datum := range data { switch datum.Attr.Type { case nl.TCA_NETEM_CORR: @@ -555,13 +635,23 @@ func parseNetemData(qdisc Qdisc, value []byte) error { opt := nl.DeserializeTcNetemReorder(datum.Value) netem.ReorderProb = opt.Probability netem.ReorderCorr = opt.Correlation + case nl.TCA_NETEM_RATE: + rate = nl.DeserializeTcNetemRate(datum.Value) + case nl.TCA_NETEM_RATE64: + rate64 = native.Uint64(datum.Value) } } + if rate != nil { + netem.Rate64 = uint64(rate.Rate) + if rate64 > 0 { + netem.Rate64 = rate64 + } + } + return nil } func parseTbfData(qdisc Qdisc, data []syscall.NetlinkRouteAttr) error { - native = nl.NativeEndian() tbf := qdisc.(*Tbf) for _, datum := range data { switch datum.Attr.Type { @@ -582,6 +672,17 @@ func parseTbfData(qdisc Qdisc, data []syscall.NetlinkRouteAttr) error { return nil } +func parseSfqData(qdisc Qdisc, value []byte) error { + sfq := qdisc.(*Sfq) + opt := nl.DeserializeTcSfqQoptV1(value) + sfq.Quantum = opt.TcSfqQopt.Quantum + sfq.Perturb = uint8(opt.TcSfqQopt.Perturb) + sfq.Limit = opt.TcSfqQopt.Limit + sfq.Divisor = opt.TcSfqQopt.Divisor + + return nil +} + const ( TIME_UNITS_PER_SEC = 1000000 ) @@ -590,6 +691,9 @@ var ( tickInUsec float64 clockFactor float64 hz float64 + + // Without this, the go race detector may report races. + initClockMutex sync.Mutex ) func initClock() { @@ -598,10 +702,10 @@ func initClock() { return } parts := strings.Split(strings.TrimSpace(string(data)), " ") - if len(parts) < 3 { + if len(parts) < 4 { return } - var vals [3]uint64 + var vals [4]uint64 for i := range vals { val, err := strconv.ParseUint(parts[i], 16, 32) if err != nil { @@ -615,10 +719,17 @@ func initClock() { } clockFactor = float64(vals[2]) / TIME_UNITS_PER_SEC tickInUsec = float64(vals[0]) / float64(vals[1]) * clockFactor - hz = float64(vals[0]) + if vals[2] == 1000000 { + // ref https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/tree/lib/utils.c#n963 + hz = float64(vals[3]) + } else { + hz = 100 + } } func TickInUsec() float64 { + initClockMutex.Lock() + defer initClockMutex.Unlock() if tickInUsec == 0.0 { initClock() } @@ -626,6 +737,8 @@ func TickInUsec() float64 { } func ClockFactor() float64 { + initClockMutex.Lock() + defer initClockMutex.Unlock() if clockFactor == 0.0 { initClock() } @@ -633,6 +746,8 @@ func ClockFactor() float64 { } func Hz() float64 { + initClockMutex.Lock() + defer initClockMutex.Unlock() if hz == 0.0 { initClock() } @@ -663,6 +778,11 @@ func latency(rate uint64, limit, buffer uint32) float64 { return TIME_UNITS_PER_SEC*(float64(limit)/float64(rate)) - float64(tick2Time(buffer)) } -func Xmittime(rate uint64, size uint32) float64 { - return TickInUsec() * TIME_UNITS_PER_SEC * (float64(size) / float64(rate)) +func Xmittime(rate uint64, size uint32) uint32 { + // https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/tree/tc/tc_core.c#n62 + return time2Tick(uint32(TIME_UNITS_PER_SEC * (float64(size) / float64(rate)))) +} + +func Xmitsize(rate uint64, ticks uint32) uint32 { + return uint32((float64(rate) * float64(tick2Time(ticks))) / TIME_UNITS_PER_SEC) } diff --git a/vendor/github.com/vishvananda/netlink/rdma_link_linux.go b/vendor/github.com/vishvananda/netlink/rdma_link_linux.go index 2d0bdc8c3..036399db6 100644 --- a/vendor/github.com/vishvananda/netlink/rdma_link_linux.go +++ b/vendor/github.com/vishvananda/netlink/rdma_link_linux.go @@ -77,28 +77,39 @@ func executeOneGetRdmaLink(data []byte) (*RdmaLink, error) { return &link, nil } -func execRdmaGetLink(req *nl.NetlinkRequest, name string) (*RdmaLink, error) { +func execRdmaSetLink(req *nl.NetlinkRequest) error { + + _, err := req.Execute(unix.NETLINK_RDMA, 0) + return err +} + +// RdmaLinkList gets a list of RDMA link devices. +// Equivalent to: `rdma dev show` +func RdmaLinkList() ([]*RdmaLink, error) { + return pkgHandle.RdmaLinkList() +} + +// RdmaLinkList gets a list of RDMA link devices. +// Equivalent to: `rdma dev show` +func (h *Handle) RdmaLinkList() ([]*RdmaLink, error) { + proto := getProtoField(nl.RDMA_NL_NLDEV, nl.RDMA_NLDEV_CMD_GET) + req := h.newNetlinkRequest(proto, unix.NLM_F_ACK|unix.NLM_F_DUMP) msgs, err := req.Execute(unix.NETLINK_RDMA, 0) if err != nil { return nil, err } + + var res []*RdmaLink for _, m := range msgs { link, err := executeOneGetRdmaLink(m) if err != nil { return nil, err } - if link.Attrs.Name == name { - return link, nil - } + res = append(res, link) } - return nil, fmt.Errorf("Rdma device %v not found", name) -} - -func execRdmaSetLink(req *nl.NetlinkRequest) error { - _, err := req.Execute(unix.NETLINK_RDMA, 0) - return err + return res, nil } // RdmaLinkByName finds a link by name and returns a pointer to the object if @@ -110,11 +121,16 @@ func RdmaLinkByName(name string) (*RdmaLink, error) { // RdmaLinkByName finds a link by name and returns a pointer to the object if // found and nil error, otherwise returns error code. func (h *Handle) RdmaLinkByName(name string) (*RdmaLink, error) { - - proto := getProtoField(nl.RDMA_NL_NLDEV, nl.RDMA_NLDEV_CMD_GET) - req := h.newNetlinkRequest(proto, unix.NLM_F_ACK|unix.NLM_F_DUMP) - - return execRdmaGetLink(req, name) + links, err := h.RdmaLinkList() + if err != nil { + return nil, err + } + for _, link := range links { + if link.Attrs.Name == name { + return link, nil + } + } + return nil, fmt.Errorf("Rdma device %v not found", name) } // RdmaLinkSetName sets the name of the rdma link device. Return nil on success @@ -262,3 +278,54 @@ func (h *Handle) RdmaLinkSetNsFd(link *RdmaLink, fd uint32) error { return execRdmaSetLink(req) } + +// RdmaLinkDel deletes an rdma link +// +// Similar to: rdma link delete NAME +// REF: https://man7.org/linux/man-pages/man8/rdma-link.8.html +func RdmaLinkDel(name string) error { + return pkgHandle.RdmaLinkDel(name) +} + +// RdmaLinkDel deletes an rdma link. +func (h *Handle) RdmaLinkDel(name string) error { + link, err := h.RdmaLinkByName(name) + if err != nil { + return err + } + + proto := getProtoField(nl.RDMA_NL_NLDEV, nl.RDMA_NLDEV_CMD_DELLINK) + req := h.newNetlinkRequest(proto, unix.NLM_F_ACK) + + b := make([]byte, 4) + native.PutUint32(b, link.Attrs.Index) + req.AddData(nl.NewRtAttr(nl.RDMA_NLDEV_ATTR_DEV_INDEX, b)) + + _, err = req.Execute(unix.NETLINK_RDMA, 0) + return err +} + +// RdmaLinkAdd adds an rdma link for the specified type to the network device. +// Similar to: rdma link add NAME type TYPE netdev NETDEV +// NAME - specifies the new name of the rdma link to add +// TYPE - specifies which rdma type to use. Link types: +// rxe - Soft RoCE driver +// siw - Soft iWARP driver +// NETDEV - specifies the network device to which the link is bound +// +// REF: https://man7.org/linux/man-pages/man8/rdma-link.8.html +func RdmaLinkAdd(linkName, linkType, netdev string) error { + return pkgHandle.RdmaLinkAdd(linkName, linkType, netdev) +} + +// RdmaLinkAdd adds an rdma link for the specified type to the network device. +func (h *Handle) RdmaLinkAdd(linkName string, linkType string, netdev string) error { + proto := getProtoField(nl.RDMA_NL_NLDEV, nl.RDMA_NLDEV_CMD_NEWLINK) + req := h.newNetlinkRequest(proto, unix.NLM_F_ACK) + + req.AddData(nl.NewRtAttr(nl.RDMA_NLDEV_ATTR_DEV_NAME, nl.ZeroTerminated(linkName))) + req.AddData(nl.NewRtAttr(nl.RDMA_NLDEV_ATTR_LINK_TYPE, nl.ZeroTerminated(linkType))) + req.AddData(nl.NewRtAttr(nl.RDMA_NLDEV_ATTR_NDEV_NAME, nl.ZeroTerminated(netdev))) + _, err := req.Execute(unix.NETLINK_RDMA, 0) + return err +} diff --git a/vendor/github.com/vishvananda/netlink/route.go b/vendor/github.com/vishvananda/netlink/route.go index 58ff1af60..1b4555d5c 100644 --- a/vendor/github.com/vishvananda/netlink/route.go +++ b/vendor/github.com/vishvananda/netlink/route.go @@ -11,6 +11,24 @@ type Scope uint8 type NextHopFlag int +const ( + RT_FILTER_PROTOCOL uint64 = 1 << (1 + iota) + RT_FILTER_SCOPE + RT_FILTER_TYPE + RT_FILTER_TOS + RT_FILTER_IIF + RT_FILTER_OIF + RT_FILTER_DST + RT_FILTER_SRC + RT_FILTER_GW + RT_FILTER_TABLE + RT_FILTER_HOPLIMIT + RT_FILTER_PRIORITY + RT_FILTER_MARK + RT_FILTER_MASK + RT_FILTER_REALM +) + type Destination interface { Family() int Decode([]byte) error @@ -27,27 +45,46 @@ type Encap interface { Equal(Encap) bool } +//Protocol describe what was the originator of the route +type RouteProtocol int + // Route represents a netlink route. type Route struct { - LinkIndex int - ILinkIndex int - Scope Scope - Dst *net.IPNet - Src net.IP - Gw net.IP - MultiPath []*NexthopInfo - Protocol int - Priority int - Table int - Type int - Tos int - Flags int - MPLSDst *int - NewDst Destination - Encap Encap - MTU int - AdvMSS int - Hoplimit int + LinkIndex int + ILinkIndex int + Scope Scope + Dst *net.IPNet + Src net.IP + Gw net.IP + MultiPath []*NexthopInfo + Protocol RouteProtocol + Priority int + Family int + Table int + Type int + Tos int + Flags int + MPLSDst *int + NewDst Destination + Encap Encap + Via Destination + Realm int + MTU int + Window int + Rtt int + RttVar int + Ssthresh int + Cwnd int + AdvMSS int + Reordering int + Hoplimit int + InitCwnd int + Features int + RtoMin int + InitRwnd int + QuickACK int + Congctl string + FastOpenNoCookie int } func (r Route) String() string { @@ -66,6 +103,9 @@ func (r Route) String() string { if r.Encap != nil { elems = append(elems, fmt.Sprintf("Encap: %s", r.Encap)) } + if r.Via != nil { + elems = append(elems, fmt.Sprintf("Via: %s", r.Via)) + } elems = append(elems, fmt.Sprintf("Src: %s", r.Src)) if len(r.MultiPath) > 0 { elems = append(elems, fmt.Sprintf("Gw: %s", r.MultiPath)) @@ -74,6 +114,7 @@ func (r Route) String() string { } elems = append(elems, fmt.Sprintf("Flags: %s", r.ListFlags())) elems = append(elems, fmt.Sprintf("Table: %d", r.Table)) + elems = append(elems, fmt.Sprintf("Realm: %d", r.Realm)) return fmt.Sprintf("{%s}", strings.Join(elems, " ")) } @@ -87,6 +128,7 @@ func (r Route) Equal(x Route) bool { nexthopInfoSlice(r.MultiPath).Equal(x.MultiPath) && r.Protocol == x.Protocol && r.Priority == x.Priority && + r.Realm == x.Realm && r.Table == x.Table && r.Type == x.Type && r.Tos == x.Tos && @@ -94,6 +136,7 @@ func (r Route) Equal(x Route) bool { r.Flags == x.Flags && (r.MPLSDst == x.MPLSDst || (r.MPLSDst != nil && x.MPLSDst != nil && *r.MPLSDst == *x.MPLSDst)) && (r.NewDst == x.NewDst || (r.NewDst != nil && r.NewDst.Equal(x.NewDst))) && + (r.Via == x.Via || (r.Via != nil && r.Via.Equal(x.Via))) && (r.Encap == x.Encap || (r.Encap != nil && r.Encap.Equal(x.Encap))) } @@ -111,8 +154,15 @@ type flagString struct { } // RouteUpdate is sent when a route changes - type is RTM_NEWROUTE or RTM_DELROUTE + +// NlFlags is only non-zero for RTM_NEWROUTE, the following flags can be set: +// - unix.NLM_F_REPLACE - Replace existing matching config object with this request +// - unix.NLM_F_EXCL - Don't replace the config object if it already exists +// - unix.NLM_F_CREATE - Create config object if it doesn't already exist +// - unix.NLM_F_APPEND - Add to the end of the object list type RouteUpdate struct { - Type uint16 + Type uint16 + NlFlags uint16 Route } @@ -123,6 +173,7 @@ type NexthopInfo struct { Flags int NewDst Destination Encap Encap + Via Destination } func (n *NexthopInfo) String() string { @@ -134,6 +185,9 @@ func (n *NexthopInfo) String() string { if n.Encap != nil { elems = append(elems, fmt.Sprintf("Encap: %s", n.Encap)) } + if n.Via != nil { + elems = append(elems, fmt.Sprintf("Via: %s", n.Via)) + } elems = append(elems, fmt.Sprintf("Weight: %d", n.Hops+1)) elems = append(elems, fmt.Sprintf("Gw: %s", n.Gw)) elems = append(elems, fmt.Sprintf("Flags: %s", n.ListFlags())) diff --git a/vendor/github.com/vishvananda/netlink/route_linux.go b/vendor/github.com/vishvananda/netlink/route_linux.go index c69c595ed..0cd4f8363 100644 --- a/vendor/github.com/vishvananda/netlink/route_linux.go +++ b/vendor/github.com/vishvananda/netlink/route_linux.go @@ -1,8 +1,11 @@ package netlink import ( + "bytes" + "encoding/binary" "fmt" "net" + "strconv" "strings" "syscall" @@ -21,19 +24,22 @@ const ( SCOPE_NOWHERE Scope = unix.RT_SCOPE_NOWHERE ) -const ( - RT_FILTER_PROTOCOL uint64 = 1 << (1 + iota) - RT_FILTER_SCOPE - RT_FILTER_TYPE - RT_FILTER_TOS - RT_FILTER_IIF - RT_FILTER_OIF - RT_FILTER_DST - RT_FILTER_SRC - RT_FILTER_GW - RT_FILTER_TABLE - RT_FILTER_HOPLIMIT -) +func (s Scope) String() string { + switch s { + case SCOPE_UNIVERSE: + return "universe" + case SCOPE_SITE: + return "site" + case SCOPE_LINK: + return "link" + case SCOPE_HOST: + return "host" + case SCOPE_NOWHERE: + return "nowhere" + default: + return "unknown" + } +} const ( FLAG_ONLINK NextHopFlag = unix.RTNH_F_ONLINK @@ -128,7 +134,6 @@ func (e *MPLSEncap) Decode(buf []byte) error { if len(buf) < 4 { return fmt.Errorf("lack of bytes") } - native := nl.NativeEndian() l := native.Uint16(buf) if len(buf) < int(l) { return fmt.Errorf("lack of bytes") @@ -144,7 +149,6 @@ func (e *MPLSEncap) Decode(buf []byte) error { func (e *MPLSEncap) Encode() ([]byte, error) { s := nl.EncodeMPLSStack(e.Labels...) - native := nl.NativeEndian() hdr := make([]byte, 4) native.PutUint16(hdr, uint16(len(s)+4)) native.PutUint16(hdr[2:], nl.MPLS_IPTUNNEL_DST) @@ -200,7 +204,6 @@ func (e *SEG6Encap) Decode(buf []byte) error { if len(buf) < 4 { return fmt.Errorf("lack of bytes") } - native := nl.NativeEndian() // Get Length(l) & Type(typ) : 2 + 2 bytes l := native.Uint16(buf) if len(buf) < int(l) { @@ -220,7 +223,6 @@ func (e *SEG6Encap) Decode(buf []byte) error { } func (e *SEG6Encap) Encode() ([]byte, error) { s, err := nl.EncodeSEG6Encap(e.Mode, e.Segments) - native := nl.NativeEndian() hdr := make([]byte, 4) native.PutUint16(hdr, uint16(len(s)+4)) native.PutUint16(hdr[2:], nl.SEG6_IPTUNNEL_SRH) @@ -230,7 +232,7 @@ func (e *SEG6Encap) String() string { segs := make([]string, 0, len(e.Segments)) // append segment backwards (from n to 0) since seg#0 is the last segment. for i := len(e.Segments); i > 0; i-- { - segs = append(segs, fmt.Sprintf("%s", e.Segments[i-1])) + segs = append(segs, e.Segments[i-1].String()) } str := fmt.Sprintf("mode %s segs %d [ %s ]", nl.SEG6EncapModeString(e.Mode), len(e.Segments), strings.Join(segs, " ")) @@ -271,6 +273,16 @@ type SEG6LocalEncap struct { In6Addr net.IP Iif int Oif int + bpf bpfObj +} + +func (e *SEG6LocalEncap) SetProg(progFd int, progName string) error { + if progFd <= 0 { + return fmt.Errorf("seg6local bpf SetProg: invalid fd") + } + e.bpf.progFd = progFd + e.bpf.progName = progName + return nil } func (e *SEG6LocalEncap) Type() int { @@ -281,7 +293,6 @@ func (e *SEG6LocalEncap) Decode(buf []byte) error { if err != nil { return err } - native := nl.NativeEndian() for _, attr := range attrs { switch attr.Attr.Type { case nl.SEG6_LOCAL_ACTION: @@ -305,13 +316,28 @@ func (e *SEG6LocalEncap) Decode(buf []byte) error { case nl.SEG6_LOCAL_OIF: e.Oif = int(native.Uint32(attr.Value[0:4])) e.Flags[nl.SEG6_LOCAL_OIF] = true + case nl.SEG6_LOCAL_BPF: + var bpfAttrs []syscall.NetlinkRouteAttr + bpfAttrs, err = nl.ParseRouteAttr(attr.Value) + bpfobj := bpfObj{} + for _, bpfAttr := range bpfAttrs { + switch bpfAttr.Attr.Type { + case nl.LWT_BPF_PROG_FD: + bpfobj.progFd = int(native.Uint32(bpfAttr.Value)) + case nl.LWT_BPF_PROG_NAME: + bpfobj.progName = string(bpfAttr.Value) + default: + err = fmt.Errorf("seg6local bpf decode: unknown attribute: Type %d", bpfAttr.Attr) + } + } + e.bpf = bpfobj + e.Flags[nl.SEG6_LOCAL_BPF] = true } } return err } func (e *SEG6LocalEncap) Encode() ([]byte, error) { var err error - native := nl.NativeEndian() res := make([]byte, 8) native.PutUint16(res, 8) // length native.PutUint16(res[2:], nl.SEG6_LOCAL_ACTION) @@ -367,6 +393,16 @@ func (e *SEG6LocalEncap) Encode() ([]byte, error) { native.PutUint32(attr[4:], uint32(e.Oif)) res = append(res, attr...) } + if e.Flags[nl.SEG6_LOCAL_BPF] { + attr := nl.NewRtAttr(nl.SEG6_LOCAL_BPF, []byte{}) + if e.bpf.progFd != 0 { + attr.AddRtAttr(nl.LWT_BPF_PROG_FD, nl.Uint32Attr(uint32(e.bpf.progFd))) + } + if e.bpf.progName != "" { + attr.AddRtAttr(nl.LWT_BPF_PROG_NAME, nl.ZeroTerminated(e.bpf.progName)) + } + res = append(res, attr.Serialize()...) + } return res, err } func (e *SEG6LocalEncap) String() string { @@ -400,12 +436,15 @@ func (e *SEG6LocalEncap) String() string { } if e.Flags[nl.SEG6_LOCAL_SRH] { segs := make([]string, 0, len(e.Segments)) - //append segment backwards (from n to 0) since seg#0 is the last segment. + // append segment backwards (from n to 0) since seg#0 is the last segment. for i := len(e.Segments); i > 0; i-- { - segs = append(segs, fmt.Sprintf("%s", e.Segments[i-1])) + segs = append(segs, e.Segments[i-1].String()) } strs = append(strs, fmt.Sprintf("segs %d [ %s ]", len(e.Segments), strings.Join(segs, " "))) } + if e.Flags[nl.SEG6_LOCAL_BPF] { + strs = append(strs, fmt.Sprintf("bpf %s[%d]", e.bpf.progName, e.bpf.progFd)) + } return strings.Join(strs, " ") } func (e *SEG6LocalEncap) Equal(x Encap) bool { @@ -437,12 +476,316 @@ func (e *SEG6LocalEncap) Equal(x Encap) bool { if !e.InAddr.Equal(o.InAddr) || !e.In6Addr.Equal(o.In6Addr) { return false } - if e.Action != o.Action || e.Table != o.Table || e.Iif != o.Iif || e.Oif != o.Oif { + if e.Action != o.Action || e.Table != o.Table || e.Iif != o.Iif || e.Oif != o.Oif || e.bpf != o.bpf { + return false + } + return true +} + +// Encap BPF definitions +type bpfObj struct { + progFd int + progName string +} +type BpfEncap struct { + progs [nl.LWT_BPF_MAX]bpfObj + headroom int +} + +// SetProg adds a bpf function to the route via netlink RTA_ENCAP. The fd must be a bpf +// program loaded with bpf(type=BPF_PROG_TYPE_LWT_*) matching the direction the program should +// be applied to (LWT_BPF_IN, LWT_BPF_OUT, LWT_BPF_XMIT). +func (e *BpfEncap) SetProg(mode, progFd int, progName string) error { + if progFd <= 0 { + return fmt.Errorf("lwt bpf SetProg: invalid fd") + } + if mode <= nl.LWT_BPF_UNSPEC || mode >= nl.LWT_BPF_XMIT_HEADROOM { + return fmt.Errorf("lwt bpf SetProg:invalid mode") + } + e.progs[mode].progFd = progFd + e.progs[mode].progName = fmt.Sprintf("%s[fd:%d]", progName, progFd) + return nil +} + +// SetXmitHeadroom sets the xmit headroom (LWT_BPF_MAX_HEADROOM) via netlink RTA_ENCAP. +// maximum headroom is LWT_BPF_MAX_HEADROOM +func (e *BpfEncap) SetXmitHeadroom(headroom int) error { + if headroom > nl.LWT_BPF_MAX_HEADROOM || headroom < 0 { + return fmt.Errorf("invalid headroom size. range is 0 - %d", nl.LWT_BPF_MAX_HEADROOM) + } + e.headroom = headroom + return nil +} + +func (e *BpfEncap) Type() int { + return nl.LWTUNNEL_ENCAP_BPF +} +func (e *BpfEncap) Decode(buf []byte) error { + if len(buf) < 4 { + return fmt.Errorf("lwt bpf decode: lack of bytes") + } + native := nl.NativeEndian() + attrs, err := nl.ParseRouteAttr(buf) + if err != nil { + return fmt.Errorf("lwt bpf decode: failed parsing attribute. err: %v", err) + } + for _, attr := range attrs { + if int(attr.Attr.Type) < 1 { + // nl.LWT_BPF_UNSPEC + continue + } + if int(attr.Attr.Type) > nl.LWT_BPF_MAX { + return fmt.Errorf("lwt bpf decode: received unknown attribute type: %d", attr.Attr.Type) + } + switch int(attr.Attr.Type) { + case nl.LWT_BPF_MAX_HEADROOM: + e.headroom = int(native.Uint32(attr.Value)) + default: + bpfO := bpfObj{} + parsedAttrs, err := nl.ParseRouteAttr(attr.Value) + if err != nil { + return fmt.Errorf("lwt bpf decode: failed parsing route attribute") + } + for _, parsedAttr := range parsedAttrs { + switch int(parsedAttr.Attr.Type) { + case nl.LWT_BPF_PROG_FD: + bpfO.progFd = int(native.Uint32(parsedAttr.Value)) + case nl.LWT_BPF_PROG_NAME: + bpfO.progName = string(parsedAttr.Value) + default: + return fmt.Errorf("lwt bpf decode: received unknown attribute: type: %d, len: %d", parsedAttr.Attr.Type, parsedAttr.Attr.Len) + } + } + e.progs[attr.Attr.Type] = bpfO + } + } + return nil +} + +func (e *BpfEncap) Encode() ([]byte, error) { + buf := make([]byte, 0) + native = nl.NativeEndian() + for index, attr := range e.progs { + nlMsg := nl.NewRtAttr(index, []byte{}) + if attr.progFd != 0 { + nlMsg.AddRtAttr(nl.LWT_BPF_PROG_FD, nl.Uint32Attr(uint32(attr.progFd))) + } + if attr.progName != "" { + nlMsg.AddRtAttr(nl.LWT_BPF_PROG_NAME, nl.ZeroTerminated(attr.progName)) + } + if nlMsg.Len() > 4 { + buf = append(buf, nlMsg.Serialize()...) + } + } + if len(buf) <= 4 { + return nil, fmt.Errorf("lwt bpf encode: bpf obj definitions returned empty buffer") + } + if e.headroom > 0 { + hRoom := nl.NewRtAttr(nl.LWT_BPF_XMIT_HEADROOM, nl.Uint32Attr(uint32(e.headroom))) + buf = append(buf, hRoom.Serialize()...) + } + return buf, nil +} + +func (e *BpfEncap) String() string { + progs := make([]string, 0) + for index, obj := range e.progs { + empty := bpfObj{} + switch index { + case nl.LWT_BPF_IN: + if obj != empty { + progs = append(progs, fmt.Sprintf("in: %s", obj.progName)) + } + case nl.LWT_BPF_OUT: + if obj != empty { + progs = append(progs, fmt.Sprintf("out: %s", obj.progName)) + } + case nl.LWT_BPF_XMIT: + if obj != empty { + progs = append(progs, fmt.Sprintf("xmit: %s", obj.progName)) + } + } + } + if e.headroom > 0 { + progs = append(progs, fmt.Sprintf("xmit headroom: %d", e.headroom)) + } + return strings.Join(progs, " ") +} + +func (e *BpfEncap) Equal(x Encap) bool { + o, ok := x.(*BpfEncap) + if !ok { + return false + } + if e.headroom != o.headroom { + return false + } + for i := range o.progs { + if o.progs[i] != e.progs[i] { + return false + } + } + return true +} + +// IP6tnlEncap definition +type IP6tnlEncap struct { + ID uint64 + Dst net.IP + Src net.IP + Hoplimit uint8 + TC uint8 + Flags uint16 +} + +func (e *IP6tnlEncap) Type() int { + return nl.LWTUNNEL_ENCAP_IP6 +} + +func (e *IP6tnlEncap) Decode(buf []byte) error { + attrs, err := nl.ParseRouteAttr(buf) + if err != nil { + return err + } + for _, attr := range attrs { + switch attr.Attr.Type { + case nl.LWTUNNEL_IP6_ID: + e.ID = uint64(native.Uint64(attr.Value[0:4])) + case nl.LWTUNNEL_IP6_DST: + e.Dst = net.IP(attr.Value[:]) + case nl.LWTUNNEL_IP6_SRC: + e.Src = net.IP(attr.Value[:]) + case nl.LWTUNNEL_IP6_HOPLIMIT: + e.Hoplimit = attr.Value[0] + case nl.LWTUNNEL_IP6_TC: + // e.TC = attr.Value[0] + err = fmt.Errorf("decoding TC in IP6tnlEncap is not supported") + case nl.LWTUNNEL_IP6_FLAGS: + // e.Flags = uint16(native.Uint16(attr.Value[0:2])) + err = fmt.Errorf("decoding FLAG in IP6tnlEncap is not supported") + case nl.LWTUNNEL_IP6_PAD: + err = fmt.Errorf("decoding PAD in IP6tnlEncap is not supported") + case nl.LWTUNNEL_IP6_OPTS: + err = fmt.Errorf("decoding OPTS in IP6tnlEncap is not supported") + } + } + return err +} + +func (e *IP6tnlEncap) Encode() ([]byte, error) { + + final := []byte{} + + resID := make([]byte, 12) + native.PutUint16(resID, 12) // 2+2+8 + native.PutUint16(resID[2:], nl.LWTUNNEL_IP6_ID) + native.PutUint64(resID[4:], 0) + final = append(final, resID...) + + resDst := make([]byte, 4) + native.PutUint16(resDst, 20) // 2+2+16 + native.PutUint16(resDst[2:], nl.LWTUNNEL_IP6_DST) + resDst = append(resDst, e.Dst...) + final = append(final, resDst...) + + resSrc := make([]byte, 4) + native.PutUint16(resSrc, 20) + native.PutUint16(resSrc[2:], nl.LWTUNNEL_IP6_SRC) + resSrc = append(resSrc, e.Src...) + final = append(final, resSrc...) + + // resTc := make([]byte, 5) + // native.PutUint16(resTc, 5) + // native.PutUint16(resTc[2:], nl.LWTUNNEL_IP6_TC) + // resTc[4] = e.TC + // final = append(final,resTc...) + + resHops := make([]byte, 5) + native.PutUint16(resHops, 5) + native.PutUint16(resHops[2:], nl.LWTUNNEL_IP6_HOPLIMIT) + resHops[4] = e.Hoplimit + final = append(final, resHops...) + + // resFlags := make([]byte, 6) + // native.PutUint16(resFlags, 6) + // native.PutUint16(resFlags[2:], nl.LWTUNNEL_IP6_FLAGS) + // native.PutUint16(resFlags[4:], e.Flags) + // final = append(final,resFlags...) + + return final, nil +} + +func (e *IP6tnlEncap) String() string { + return fmt.Sprintf("id %d src %s dst %s hoplimit %d tc %d flags 0x%.4x", e.ID, e.Src, e.Dst, e.Hoplimit, e.TC, e.Flags) +} + +func (e *IP6tnlEncap) Equal(x Encap) bool { + o, ok := x.(*IP6tnlEncap) + if !ok { + return false + } + + if e.ID != o.ID || e.Flags != o.Flags || e.Hoplimit != o.Hoplimit || e.Src.Equal(o.Src) || e.Dst.Equal(o.Dst) || e.TC != o.TC { return false } return true } +type Via struct { + AddrFamily int + Addr net.IP +} + +func (v *Via) Equal(x Destination) bool { + o, ok := x.(*Via) + if !ok { + return false + } + if v.AddrFamily == x.Family() && v.Addr.Equal(o.Addr) { + return true + } + return false +} + +func (v *Via) String() string { + return fmt.Sprintf("Family: %d, Address: %s", v.AddrFamily, v.Addr.String()) +} + +func (v *Via) Family() int { + return v.AddrFamily +} + +func (v *Via) Encode() ([]byte, error) { + buf := &bytes.Buffer{} + err := binary.Write(buf, native, uint16(v.AddrFamily)) + if err != nil { + return nil, err + } + err = binary.Write(buf, native, v.Addr) + if err != nil { + return nil, err + } + return buf.Bytes(), nil +} + +func (v *Via) Decode(b []byte) error { + if len(b) < 6 { + return fmt.Errorf("decoding failed: buffer too small (%d bytes)", len(b)) + } + v.AddrFamily = int(native.Uint16(b[0:2])) + if v.AddrFamily == nl.FAMILY_V4 { + v.Addr = net.IP(b[2:6]) + return nil + } else if v.AddrFamily == nl.FAMILY_V6 { + if len(b) < 18 { + return fmt.Errorf("decoding failed: buffer too small (%d bytes)", len(b)) + } + v.Addr = net.IP(b[2:]) + return nil + } + return fmt.Errorf("decoding failed: address family %d unknown", v.AddrFamily) +} + // RouteAdd will add a route to the system. // Equivalent to: `ip route add $route` func RouteAdd(route *Route) error { @@ -454,7 +797,51 @@ func RouteAdd(route *Route) error { func (h *Handle) RouteAdd(route *Route) error { flags := unix.NLM_F_CREATE | unix.NLM_F_EXCL | unix.NLM_F_ACK req := h.newNetlinkRequest(unix.RTM_NEWROUTE, flags) - return h.routeHandle(route, req, nl.NewRtMsg()) + _, err := h.routeHandle(route, req, nl.NewRtMsg()) + return err +} + +// RouteAppend will append a route to the system. +// Equivalent to: `ip route append $route` +func RouteAppend(route *Route) error { + return pkgHandle.RouteAppend(route) +} + +// RouteAppend will append a route to the system. +// Equivalent to: `ip route append $route` +func (h *Handle) RouteAppend(route *Route) error { + flags := unix.NLM_F_CREATE | unix.NLM_F_APPEND | unix.NLM_F_ACK + req := h.newNetlinkRequest(unix.RTM_NEWROUTE, flags) + _, err := h.routeHandle(route, req, nl.NewRtMsg()) + return err +} + +// RouteAddEcmp will add a route to the system. +func RouteAddEcmp(route *Route) error { + return pkgHandle.RouteAddEcmp(route) +} + +// RouteAddEcmp will add a route to the system. +func (h *Handle) RouteAddEcmp(route *Route) error { + flags := unix.NLM_F_CREATE | unix.NLM_F_ACK + req := h.newNetlinkRequest(unix.RTM_NEWROUTE, flags) + _, err := h.routeHandle(route, req, nl.NewRtMsg()) + return err +} + +// RouteChange will change an existing route in the system. +// Equivalent to: `ip route change $route` +func RouteChange(route *Route) error { + return pkgHandle.RouteChange(route) +} + +// RouteChange will change an existing route in the system. +// Equivalent to: `ip route change $route` +func (h *Handle) RouteChange(route *Route) error { + flags := unix.NLM_F_REPLACE | unix.NLM_F_ACK + req := h.newNetlinkRequest(unix.RTM_NEWROUTE, flags) + _, err := h.routeHandle(route, req, nl.NewRtMsg()) + return err } // RouteReplace will add a route to the system. @@ -468,7 +855,8 @@ func RouteReplace(route *Route) error { func (h *Handle) RouteReplace(route *Route) error { flags := unix.NLM_F_CREATE | unix.NLM_F_REPLACE | unix.NLM_F_ACK req := h.newNetlinkRequest(unix.RTM_NEWROUTE, flags) - return h.routeHandle(route, req, nl.NewRtMsg()) + _, err := h.routeHandle(route, req, nl.NewRtMsg()) + return err } // RouteDel will delete a route from the system. @@ -481,12 +869,27 @@ func RouteDel(route *Route) error { // Equivalent to: `ip route del $route` func (h *Handle) RouteDel(route *Route) error { req := h.newNetlinkRequest(unix.RTM_DELROUTE, unix.NLM_F_ACK) - return h.routeHandle(route, req, nl.NewRtDelMsg()) + _, err := h.routeHandle(route, req, nl.NewRtDelMsg()) + return err } -func (h *Handle) routeHandle(route *Route, req *nl.NetlinkRequest, msg *nl.RtMsg) error { - if (route.Dst == nil || route.Dst.IP == nil) && route.Src == nil && route.Gw == nil && route.MPLSDst == nil { - return fmt.Errorf("one of Dst.IP, Src, or Gw must not be nil") +func (h *Handle) routeHandle(route *Route, req *nl.NetlinkRequest, msg *nl.RtMsg) ([][]byte, error) { + if err := h.prepareRouteReq(route, req, msg); err != nil { + return nil, err + } + return req.Execute(unix.NETLINK_ROUTE, 0) +} + +func (h *Handle) routeHandleIter(route *Route, req *nl.NetlinkRequest, msg *nl.RtMsg, f func(msg []byte) bool) error { + if err := h.prepareRouteReq(route, req, msg); err != nil { + return err + } + return req.ExecuteIter(unix.NETLINK_ROUTE, 0, f) +} + +func (h *Handle) prepareRouteReq(route *Route, req *nl.NetlinkRequest, msg *nl.RtMsg) error { + if req.NlMsghdr.Type != unix.RTM_GETROUTE && (route.Dst == nil || route.Dst.IP == nil) && route.Src == nil && route.Gw == nil && route.MPLSDst == nil { + return fmt.Errorf("either Dst.IP, Src.IP or Gw must be set") } family := -1 @@ -530,7 +933,13 @@ func (h *Handle) routeHandle(route *Route, req *nl.NetlinkRequest, msg *nl.RtMsg if err != nil { return err } - rtAttrs = append(rtAttrs, nl.NewRtAttr(unix.RTA_ENCAP, buf)) + switch route.Encap.Type() { + case nl.LWTUNNEL_ENCAP_BPF: + rtAttrs = append(rtAttrs, nl.NewRtAttr(unix.RTA_ENCAP|unix.NLA_F_NESTED, buf)) + default: + rtAttrs = append(rtAttrs, nl.NewRtAttr(unix.RTA_ENCAP, buf)) + } + } if route.Src != nil { @@ -564,6 +973,14 @@ func (h *Handle) routeHandle(route *Route, req *nl.NetlinkRequest, msg *nl.RtMsg rtAttrs = append(rtAttrs, nl.NewRtAttr(unix.RTA_GATEWAY, gwData)) } + if route.Via != nil { + buf, err := route.Via.Encode() + if err != nil { + return fmt.Errorf("failed to encode RTA_VIA: %v", err) + } + rtAttrs = append(rtAttrs, nl.NewRtAttr(unix.RTA_VIA, buf)) + } + if len(route.MultiPath) > 0 { buf := []byte{} for _, nh := range route.MultiPath { @@ -606,6 +1023,13 @@ func (h *Handle) routeHandle(route *Route, req *nl.NetlinkRequest, msg *nl.RtMsg } children = append(children, nl.NewRtAttr(unix.RTA_ENCAP, buf)) } + if nh.Via != nil { + buf, err := nh.Via.Encode() + if err != nil { + return err + } + children = append(children, nl.NewRtAttr(unix.RTA_VIA, buf)) + } rtnh.Children = children buf = append(buf, rtnh.Serialize()...) } @@ -628,6 +1052,11 @@ func (h *Handle) routeHandle(route *Route, req *nl.NetlinkRequest, msg *nl.RtMsg native.PutUint32(b, uint32(route.Priority)) rtAttrs = append(rtAttrs, nl.NewRtAttr(unix.RTA_PRIORITY, b)) } + if route.Realm > 0 { + b := make([]byte, 4) + native.PutUint32(b, uint32(route.Realm)) + rtAttrs = append(rtAttrs, nl.NewRtAttr(unix.RTA_FLOW, b)) + } if route.Tos > 0 { msg.Tos = uint8(route.Tos) } @@ -639,19 +1068,70 @@ func (h *Handle) routeHandle(route *Route, req *nl.NetlinkRequest, msg *nl.RtMsg } var metrics []*nl.RtAttr - // TODO: support other rta_metric values if route.MTU > 0 { b := nl.Uint32Attr(uint32(route.MTU)) metrics = append(metrics, nl.NewRtAttr(unix.RTAX_MTU, b)) } + if route.Window > 0 { + b := nl.Uint32Attr(uint32(route.Window)) + metrics = append(metrics, nl.NewRtAttr(unix.RTAX_WINDOW, b)) + } + if route.Rtt > 0 { + b := nl.Uint32Attr(uint32(route.Rtt)) + metrics = append(metrics, nl.NewRtAttr(unix.RTAX_RTT, b)) + } + if route.RttVar > 0 { + b := nl.Uint32Attr(uint32(route.RttVar)) + metrics = append(metrics, nl.NewRtAttr(unix.RTAX_RTTVAR, b)) + } + if route.Ssthresh > 0 { + b := nl.Uint32Attr(uint32(route.Ssthresh)) + metrics = append(metrics, nl.NewRtAttr(unix.RTAX_SSTHRESH, b)) + } + if route.Cwnd > 0 { + b := nl.Uint32Attr(uint32(route.Cwnd)) + metrics = append(metrics, nl.NewRtAttr(unix.RTAX_CWND, b)) + } if route.AdvMSS > 0 { b := nl.Uint32Attr(uint32(route.AdvMSS)) metrics = append(metrics, nl.NewRtAttr(unix.RTAX_ADVMSS, b)) } + if route.Reordering > 0 { + b := nl.Uint32Attr(uint32(route.Reordering)) + metrics = append(metrics, nl.NewRtAttr(unix.RTAX_REORDERING, b)) + } if route.Hoplimit > 0 { b := nl.Uint32Attr(uint32(route.Hoplimit)) metrics = append(metrics, nl.NewRtAttr(unix.RTAX_HOPLIMIT, b)) } + if route.InitCwnd > 0 { + b := nl.Uint32Attr(uint32(route.InitCwnd)) + metrics = append(metrics, nl.NewRtAttr(unix.RTAX_INITCWND, b)) + } + if route.Features > 0 { + b := nl.Uint32Attr(uint32(route.Features)) + metrics = append(metrics, nl.NewRtAttr(unix.RTAX_FEATURES, b)) + } + if route.RtoMin > 0 { + b := nl.Uint32Attr(uint32(route.RtoMin)) + metrics = append(metrics, nl.NewRtAttr(unix.RTAX_RTO_MIN, b)) + } + if route.InitRwnd > 0 { + b := nl.Uint32Attr(uint32(route.InitRwnd)) + metrics = append(metrics, nl.NewRtAttr(unix.RTAX_INITRWND, b)) + } + if route.QuickACK > 0 { + b := nl.Uint32Attr(uint32(route.QuickACK)) + metrics = append(metrics, nl.NewRtAttr(unix.RTAX_QUICKACK, b)) + } + if route.Congctl != "" { + b := nl.ZeroTerminated(route.Congctl) + metrics = append(metrics, nl.NewRtAttr(unix.RTAX_CC_ALGO, b)) + } + if route.FastOpenNoCookie > 0 { + b := nl.Uint32Attr(uint32(route.FastOpenNoCookie)) + metrics = append(metrics, nl.NewRtAttr(unix.RTAX_FASTOPEN_NO_COOKIE, b)) + } if metrics != nil { attr := nl.NewRtAttr(unix.RTA_METRICS, nil) @@ -663,22 +1143,21 @@ func (h *Handle) routeHandle(route *Route, req *nl.NetlinkRequest, msg *nl.RtMsg msg.Flags = uint32(route.Flags) msg.Scope = uint8(route.Scope) - msg.Family = uint8(family) + // only overwrite family if it was not set in msg + if msg.Family == 0 { + msg.Family = uint8(family) + } req.AddData(msg) for _, attr := range rtAttrs { req.AddData(attr) } - var ( - b = make([]byte, 4) - native = nl.NativeEndian() - ) - native.PutUint32(b, uint32(route.LinkIndex)) - - req.AddData(nl.NewRtAttr(unix.RTA_OIF, b)) - - _, err := req.Execute(unix.NETLINK_ROUTE, 0) - return err + if (req.NlMsghdr.Type != unix.RTM_GETROUTE) || (req.NlMsghdr.Type == unix.RTM_GETROUTE && route.LinkIndex > 0) { + b := make([]byte, 4) + native.PutUint32(b, uint32(route.LinkIndex)) + req.AddData(nl.NewRtAttr(unix.RTA_OIF, b)) + } + return nil } // RouteList gets a list of routes in the system. @@ -692,13 +1171,13 @@ func RouteList(link Link, family int) ([]Route, error) { // Equivalent to: `ip route show`. // The list can be filtered by link and ip family. func (h *Handle) RouteList(link Link, family int) ([]Route, error) { - var routeFilter *Route + routeFilter := &Route{} if link != nil { - routeFilter = &Route{ - LinkIndex: link.Attrs().Index, - } + routeFilter.LinkIndex = link.Attrs().Index + + return h.RouteListFiltered(family, routeFilter, RT_FILTER_OIF) } - return h.RouteListFiltered(family, routeFilter, RT_FILTER_OIF) + return h.RouteListFiltered(family, routeFilter, 0) } // RouteListFiltered gets a list of routes in the system filtered with specified rules. @@ -710,65 +1189,94 @@ func RouteListFiltered(family int, filter *Route, filterMask uint64) ([]Route, e // RouteListFiltered gets a list of routes in the system filtered with specified rules. // All rules must be defined in RouteFilter struct func (h *Handle) RouteListFiltered(family int, filter *Route, filterMask uint64) ([]Route, error) { - req := h.newNetlinkRequest(unix.RTM_GETROUTE, unix.NLM_F_DUMP) - infmsg := nl.NewIfInfomsg(family) - req.AddData(infmsg) - - msgs, err := req.Execute(unix.NETLINK_ROUTE, unix.RTM_NEWROUTE) + var res []Route + err := h.RouteListFilteredIter(family, filter, filterMask, func(route Route) (cont bool) { + res = append(res, route) + return true + }) if err != nil { return nil, err } + return res, nil +} - var res []Route - for _, m := range msgs { +// RouteListFilteredIter passes each route that matches the filter to the given iterator func. Iteration continues +// until all routes are loaded or the func returns false. +func RouteListFilteredIter(family int, filter *Route, filterMask uint64, f func(Route) (cont bool)) error { + return pkgHandle.RouteListFilteredIter(family, filter, filterMask, f) +} + +func (h *Handle) RouteListFilteredIter(family int, filter *Route, filterMask uint64, f func(Route) (cont bool)) error { + req := h.newNetlinkRequest(unix.RTM_GETROUTE, unix.NLM_F_DUMP) + rtmsg := &nl.RtMsg{} + rtmsg.Family = uint8(family) + + var parseErr error + err := h.routeHandleIter(filter, req, rtmsg, func(m []byte) bool { msg := nl.DeserializeRtMsg(m) + if family != FAMILY_ALL && msg.Family != uint8(family) { + // Ignore routes not matching requested family + return true + } if msg.Flags&unix.RTM_F_CLONED != 0 { // Ignore cloned routes - continue + return true } if msg.Table != unix.RT_TABLE_MAIN { - if filter == nil || filter != nil && filterMask&RT_FILTER_TABLE == 0 { + if filter == nil || filterMask&RT_FILTER_TABLE == 0 { // Ignore non-main tables - continue + return true } } route, err := deserializeRoute(m) if err != nil { - return nil, err + parseErr = err + return false } if filter != nil { switch { case filterMask&RT_FILTER_TABLE != 0 && filter.Table != unix.RT_TABLE_UNSPEC && route.Table != filter.Table: - continue + return true case filterMask&RT_FILTER_PROTOCOL != 0 && route.Protocol != filter.Protocol: - continue + return true case filterMask&RT_FILTER_SCOPE != 0 && route.Scope != filter.Scope: - continue + return true case filterMask&RT_FILTER_TYPE != 0 && route.Type != filter.Type: - continue + return true case filterMask&RT_FILTER_TOS != 0 && route.Tos != filter.Tos: - continue + return true + case filterMask&RT_FILTER_REALM != 0 && route.Realm != filter.Realm: + return true case filterMask&RT_FILTER_OIF != 0 && route.LinkIndex != filter.LinkIndex: - continue + return true case filterMask&RT_FILTER_IIF != 0 && route.ILinkIndex != filter.ILinkIndex: - continue + return true case filterMask&RT_FILTER_GW != 0 && !route.Gw.Equal(filter.Gw): - continue + return true case filterMask&RT_FILTER_SRC != 0 && !route.Src.Equal(filter.Src): - continue + return true case filterMask&RT_FILTER_DST != 0: if filter.MPLSDst == nil || route.MPLSDst == nil || (*filter.MPLSDst) != (*route.MPLSDst) { + if filter.Dst == nil { + filter.Dst = genZeroIPNet(family) + } if !ipNetEqual(route.Dst, filter.Dst) { - continue + return true } } case filterMask&RT_FILTER_HOPLIMIT != 0 && route.Hoplimit != filter.Hoplimit: - continue + return true } } - res = append(res, route) + return f(route) + }) + if err != nil { + return err } - return res, nil + if parseErr != nil { + return parseErr + } + return nil } // deserializeRoute decodes a binary netlink message into a Route struct @@ -780,14 +1288,14 @@ func deserializeRoute(m []byte) (Route, error) { } route := Route{ Scope: Scope(msg.Scope), - Protocol: int(msg.Protocol), + Protocol: RouteProtocol(int(msg.Protocol)), Table: int(msg.Table), Type: int(msg.Type), Tos: int(msg.Tos), Flags: int(msg.Flags), + Family: int(msg.Family), } - native := nl.NativeEndian() var encap, encapType syscall.NetlinkRouteAttr for _, attr := range attrs { switch attr.Attr.Type { @@ -814,6 +1322,8 @@ func deserializeRoute(m []byte) (Route, error) { route.ILinkIndex = int(native.Uint32(attr.Value[0:4])) case unix.RTA_PRIORITY: route.Priority = int(native.Uint32(attr.Value[0:4])) + case unix.RTA_FLOW: + route.Realm = int(native.Uint32(attr.Value[0:4])) case unix.RTA_TABLE: route.Table = int(native.Uint32(attr.Value[0:4])) case unix.RTA_MULTIPATH: @@ -853,6 +1363,12 @@ func deserializeRoute(m []byte) (Route, error) { encapType = attr case unix.RTA_ENCAP: encap = attr + case unix.RTA_VIA: + d := &Via{} + if err := d.Decode(attr.Value); err != nil { + return nil, nil, err + } + info.Via = d } } @@ -890,6 +1406,12 @@ func deserializeRoute(m []byte) (Route, error) { return route, err } route.NewDst = d + case unix.RTA_VIA: + v := &Via{} + if err := v.Decode(attr.Value); err != nil { + return route, err + } + route.Via = v case unix.RTA_ENCAP_TYPE: encapType = attr case unix.RTA_ENCAP: @@ -903,15 +1425,62 @@ func deserializeRoute(m []byte) (Route, error) { switch metric.Attr.Type { case unix.RTAX_MTU: route.MTU = int(native.Uint32(metric.Value[0:4])) + case unix.RTAX_WINDOW: + route.Window = int(native.Uint32(metric.Value[0:4])) + case unix.RTAX_RTT: + route.Rtt = int(native.Uint32(metric.Value[0:4])) + case unix.RTAX_RTTVAR: + route.RttVar = int(native.Uint32(metric.Value[0:4])) + case unix.RTAX_SSTHRESH: + route.Ssthresh = int(native.Uint32(metric.Value[0:4])) + case unix.RTAX_CWND: + route.Cwnd = int(native.Uint32(metric.Value[0:4])) case unix.RTAX_ADVMSS: route.AdvMSS = int(native.Uint32(metric.Value[0:4])) + case unix.RTAX_REORDERING: + route.Reordering = int(native.Uint32(metric.Value[0:4])) case unix.RTAX_HOPLIMIT: route.Hoplimit = int(native.Uint32(metric.Value[0:4])) + case unix.RTAX_INITCWND: + route.InitCwnd = int(native.Uint32(metric.Value[0:4])) + case unix.RTAX_FEATURES: + route.Features = int(native.Uint32(metric.Value[0:4])) + case unix.RTAX_RTO_MIN: + route.RtoMin = int(native.Uint32(metric.Value[0:4])) + case unix.RTAX_INITRWND: + route.InitRwnd = int(native.Uint32(metric.Value[0:4])) + case unix.RTAX_QUICKACK: + route.QuickACK = int(native.Uint32(metric.Value[0:4])) + case unix.RTAX_CC_ALGO: + route.Congctl = nl.BytesToString(metric.Value) + case unix.RTAX_FASTOPEN_NO_COOKIE: + route.FastOpenNoCookie = int(native.Uint32(metric.Value[0:4])) } } } } + // Same logic to generate "default" dst with iproute2 implementation + if route.Dst == nil { + var addLen int + var ip net.IP + switch msg.Family { + case FAMILY_V4: + addLen = net.IPv4len + ip = net.IPv4zero + case FAMILY_V6: + addLen = net.IPv6len + ip = net.IPv6zero + } + + if addLen != 0 { + route.Dst = &net.IPNet{ + IP: ip, + Mask: net.CIDRMask(int(msg.Dst_len), 8*addLen), + } + } + } + if len(encap.Value) != 0 && len(encapType.Value) != 0 { typ := int(native.Uint16(encapType.Value[0:2])) var e Encap @@ -931,6 +1500,11 @@ func deserializeRoute(m []byte) (Route, error) { if err := e.Decode(encap.Value); err != nil { return route, err } + case nl.LWTUNNEL_ENCAP_BPF: + e = &BpfEncap{} + if err := e.Decode(encap.Value); err != nil { + return route, err + } } route.Encap = e } @@ -938,15 +1512,34 @@ func deserializeRoute(m []byte) (Route, error) { return route, nil } +// RouteGetOptions contains a set of options to use with +// RouteGetWithOptions +type RouteGetOptions struct { + Iif string + IifIndex int + Oif string + VrfName string + SrcAddr net.IP + UID *uint32 + Mark uint32 + FIBMatch bool +} + +// RouteGetWithOptions gets a route to a specific destination from the host system. +// Equivalent to: 'ip route get <> vrf '. +func RouteGetWithOptions(destination net.IP, options *RouteGetOptions) ([]Route, error) { + return pkgHandle.RouteGetWithOptions(destination, options) +} + // RouteGet gets a route to a specific destination from the host system. // Equivalent to: 'ip route get'. func RouteGet(destination net.IP) ([]Route, error) { return pkgHandle.RouteGet(destination) } -// RouteGet gets a route to a specific destination from the host system. -// Equivalent to: 'ip route get'. -func (h *Handle) RouteGet(destination net.IP) ([]Route, error) { +// RouteGetWithOptions gets a route to a specific destination from the host system. +// Equivalent to: 'ip route get <> vrf '. +func (h *Handle) RouteGetWithOptions(destination net.IP, options *RouteGetOptions) ([]Route, error) { req := h.newNetlinkRequest(unix.RTM_GETROUTE, unix.NLM_F_REQUEST) family := nl.GetIPFamily(destination) var destinationData []byte @@ -961,11 +1554,88 @@ func (h *Handle) RouteGet(destination net.IP) ([]Route, error) { msg := &nl.RtMsg{} msg.Family = uint8(family) msg.Dst_len = bitlen + if options != nil && options.SrcAddr != nil { + msg.Src_len = bitlen + } + msg.Flags = unix.RTM_F_LOOKUP_TABLE + if options != nil && options.FIBMatch { + msg.Flags |= unix.RTM_F_FIB_MATCH + } req.AddData(msg) rtaDst := nl.NewRtAttr(unix.RTA_DST, destinationData) req.AddData(rtaDst) + if options != nil { + if options.VrfName != "" { + link, err := h.LinkByName(options.VrfName) + if err != nil { + return nil, err + } + b := make([]byte, 4) + native.PutUint32(b, uint32(link.Attrs().Index)) + + req.AddData(nl.NewRtAttr(unix.RTA_OIF, b)) + } + + iifIndex := 0 + if len(options.Iif) > 0 { + link, err := h.LinkByName(options.Iif) + if err != nil { + return nil, err + } + + iifIndex = link.Attrs().Index + } else if options.IifIndex > 0 { + iifIndex = options.IifIndex + } + + if iifIndex > 0 { + b := make([]byte, 4) + native.PutUint32(b, uint32(iifIndex)) + + req.AddData(nl.NewRtAttr(unix.RTA_IIF, b)) + } + + if len(options.Oif) > 0 { + link, err := h.LinkByName(options.Oif) + if err != nil { + return nil, err + } + + b := make([]byte, 4) + native.PutUint32(b, uint32(link.Attrs().Index)) + + req.AddData(nl.NewRtAttr(unix.RTA_OIF, b)) + } + + if options.SrcAddr != nil { + var srcAddr []byte + if family == FAMILY_V4 { + srcAddr = options.SrcAddr.To4() + } else { + srcAddr = options.SrcAddr.To16() + } + + req.AddData(nl.NewRtAttr(unix.RTA_SRC, srcAddr)) + } + + if options.UID != nil { + uid := *options.UID + b := make([]byte, 4) + native.PutUint32(b, uid) + + req.AddData(nl.NewRtAttr(unix.RTA_UID, b)) + } + + if options.Mark > 0 { + b := make([]byte, 4) + native.PutUint32(b, options.Mark) + + req.AddData(nl.NewRtAttr(unix.RTA_MARK, b)) + } + } + msgs, err := req.Execute(unix.NETLINK_ROUTE, unix.RTM_NEWROUTE) if err != nil { return nil, err @@ -980,27 +1650,35 @@ func (h *Handle) RouteGet(destination net.IP) ([]Route, error) { res = append(res, route) } return res, nil +} +// RouteGet gets a route to a specific destination from the host system. +// Equivalent to: 'ip route get'. +func (h *Handle) RouteGet(destination net.IP) ([]Route, error) { + return h.RouteGetWithOptions(destination, nil) } // RouteSubscribe takes a chan down which notifications will be sent // when routes are added or deleted. Close the 'done' chan to stop subscription. func RouteSubscribe(ch chan<- RouteUpdate, done <-chan struct{}) error { - return routeSubscribeAt(netns.None(), netns.None(), ch, done, nil, false) + return routeSubscribeAt(netns.None(), netns.None(), ch, done, nil, false, 0, nil, false) } // RouteSubscribeAt works like RouteSubscribe plus it allows the caller // to choose the network namespace in which to subscribe (ns). func RouteSubscribeAt(ns netns.NsHandle, ch chan<- RouteUpdate, done <-chan struct{}) error { - return routeSubscribeAt(ns, netns.None(), ch, done, nil, false) + return routeSubscribeAt(ns, netns.None(), ch, done, nil, false, 0, nil, false) } // RouteSubscribeOptions contains a set of options to use with // RouteSubscribeWithOptions. type RouteSubscribeOptions struct { - Namespace *netns.NsHandle - ErrorCallback func(error) - ListExisting bool + Namespace *netns.NsHandle + ErrorCallback func(error) + ListExisting bool + ReceiveBufferSize int + ReceiveBufferForceSize bool + ReceiveTimeout *unix.Timeval } // RouteSubscribeWithOptions work like RouteSubscribe but enable to @@ -1011,14 +1689,27 @@ func RouteSubscribeWithOptions(ch chan<- RouteUpdate, done <-chan struct{}, opti none := netns.None() options.Namespace = &none } - return routeSubscribeAt(*options.Namespace, netns.None(), ch, done, options.ErrorCallback, options.ListExisting) + return routeSubscribeAt(*options.Namespace, netns.None(), ch, done, options.ErrorCallback, options.ListExisting, + options.ReceiveBufferSize, options.ReceiveTimeout, options.ReceiveBufferForceSize) } -func routeSubscribeAt(newNs, curNs netns.NsHandle, ch chan<- RouteUpdate, done <-chan struct{}, cberr func(error), listExisting bool) error { +func routeSubscribeAt(newNs, curNs netns.NsHandle, ch chan<- RouteUpdate, done <-chan struct{}, cberr func(error), listExisting bool, + rcvbuf int, rcvTimeout *unix.Timeval, rcvbufForce bool) error { s, err := nl.SubscribeAt(newNs, curNs, unix.NETLINK_ROUTE, unix.RTNLGRP_IPV4_ROUTE, unix.RTNLGRP_IPV6_ROUTE) if err != nil { return err } + if rcvTimeout != nil { + if err := s.SetReceiveTimeout(rcvTimeout); err != nil { + return err + } + } + if rcvbuf != 0 { + err = s.SetReceiveBufferSize(rcvbuf, rcvbufForce) + if err != nil { + return err + } + } if done != nil { go func() { <-done @@ -1040,7 +1731,8 @@ func routeSubscribeAt(newNs, curNs netns.NsHandle, ch chan<- RouteUpdate, done < msgs, from, err := s.Receive() if err != nil { if cberr != nil { - cberr(err) + cberr(fmt.Errorf("Receive failed: %v", + err)) } return } @@ -1055,27 +1747,103 @@ func routeSubscribeAt(newNs, curNs netns.NsHandle, ch chan<- RouteUpdate, done < continue } if m.Header.Type == unix.NLMSG_ERROR { - native := nl.NativeEndian() error := int32(native.Uint32(m.Data[0:4])) if error == 0 { continue } if cberr != nil { - cberr(syscall.Errno(-error)) + cberr(fmt.Errorf("error message: %v", + syscall.Errno(-error))) } - return + continue } route, err := deserializeRoute(m.Data) if err != nil { if cberr != nil { cberr(err) } - return + continue + } + ch <- RouteUpdate{ + Type: m.Header.Type, + NlFlags: m.Header.Flags & (unix.NLM_F_REPLACE | unix.NLM_F_EXCL | unix.NLM_F_CREATE | unix.NLM_F_APPEND), + Route: route, } - ch <- RouteUpdate{Type: m.Header.Type, Route: route} } } }() return nil } + +func (p RouteProtocol) String() string { + switch int(p) { + case unix.RTPROT_BABEL: + return "babel" + case unix.RTPROT_BGP: + return "bgp" + case unix.RTPROT_BIRD: + return "bird" + case unix.RTPROT_BOOT: + return "boot" + case unix.RTPROT_DHCP: + return "dhcp" + case unix.RTPROT_DNROUTED: + return "dnrouted" + case unix.RTPROT_EIGRP: + return "eigrp" + case unix.RTPROT_GATED: + return "gated" + case unix.RTPROT_ISIS: + return "isis" + // case unix.RTPROT_KEEPALIVED: + // return "keepalived" + case unix.RTPROT_KERNEL: + return "kernel" + case unix.RTPROT_MROUTED: + return "mrouted" + case unix.RTPROT_MRT: + return "mrt" + case unix.RTPROT_NTK: + return "ntk" + case unix.RTPROT_OSPF: + return "ospf" + case unix.RTPROT_RA: + return "ra" + case unix.RTPROT_REDIRECT: + return "redirect" + case unix.RTPROT_RIP: + return "rip" + case unix.RTPROT_STATIC: + return "static" + case unix.RTPROT_UNSPEC: + return "unspec" + case unix.RTPROT_XORP: + return "xorp" + case unix.RTPROT_ZEBRA: + return "zebra" + default: + return strconv.Itoa(int(p)) + } +} + +// genZeroIPNet returns 0.0.0.0/0 or ::/0 for IPv4 or IPv6, otherwise nil +func genZeroIPNet(family int) *net.IPNet { + var addLen int + var ip net.IP + switch family { + case FAMILY_V4: + addLen = net.IPv4len + ip = net.IPv4zero + case FAMILY_V6: + addLen = net.IPv6len + ip = net.IPv6zero + } + if addLen != 0 { + return &net.IPNet{ + IP: ip, + Mask: net.CIDRMask(0, 8*addLen), + } + } + return nil +} diff --git a/vendor/github.com/vishvananda/netlink/route_unspecified.go b/vendor/github.com/vishvananda/netlink/route_unspecified.go index 2701862b4..db7372689 100644 --- a/vendor/github.com/vishvananda/netlink/route_unspecified.go +++ b/vendor/github.com/vishvananda/netlink/route_unspecified.go @@ -2,6 +2,8 @@ package netlink +import "strconv" + func (r *Route) ListFlags() []string { return []string{} } @@ -9,3 +11,11 @@ func (r *Route) ListFlags() []string { func (n *NexthopInfo) ListFlags() []string { return []string{} } + +func (s Scope) String() string { + return "unknown" +} + +func (p RouteProtocol) String() string { + return strconv.Itoa(int(p)) +} diff --git a/vendor/github.com/vishvananda/netlink/rule.go b/vendor/github.com/vishvananda/netlink/rule.go index 7fc8ae5df..9d74c7cd8 100644 --- a/vendor/github.com/vishvananda/netlink/rule.go +++ b/vendor/github.com/vishvananda/netlink/rule.go @@ -10,8 +10,9 @@ type Rule struct { Priority int Family int Table int - Mark int - Mask int + Mark uint32 + Mask *uint32 + Tos uint TunID uint Goto int Src *net.IPNet @@ -22,10 +23,27 @@ type Rule struct { SuppressIfgroup int SuppressPrefixlen int Invert bool + Dport *RulePortRange + Sport *RulePortRange + IPProto int + UIDRange *RuleUIDRange + Protocol uint8 + Type uint8 } func (r Rule) String() string { - return fmt.Sprintf("ip rule %d: from %s table %d", r.Priority, r.Src, r.Table) + from := "all" + if r.Src != nil && r.Src.String() != "" { + from = r.Src.String() + } + + to := "all" + if r.Dst != nil && r.Dst.String() != "" { + to = r.Dst.String() + } + + return fmt.Sprintf("ip rule %d: from %s to %s table %d %s", + r.Priority, from, to, r.Table, r.typeString()) } // NewRule return empty rules. @@ -34,9 +52,31 @@ func NewRule() *Rule { SuppressIfgroup: -1, SuppressPrefixlen: -1, Priority: -1, - Mark: -1, - Mask: -1, + Mark: 0, + Mask: nil, Goto: -1, Flow: -1, } } + +// NewRulePortRange creates rule sport/dport range. +func NewRulePortRange(start, end uint16) *RulePortRange { + return &RulePortRange{Start: start, End: end} +} + +// RulePortRange represents rule sport/dport range. +type RulePortRange struct { + Start uint16 + End uint16 +} + +// NewRuleUIDRange creates rule uid range. +func NewRuleUIDRange(start, end uint32) *RuleUIDRange { + return &RuleUIDRange{Start: start, End: end} +} + +// RuleUIDRange represents rule uid range. +type RuleUIDRange struct { + Start uint32 + End uint32 +} diff --git a/vendor/github.com/vishvananda/netlink/rule_linux.go b/vendor/github.com/vishvananda/netlink/rule_linux.go index e12569fe4..ddff99cfa 100644 --- a/vendor/github.com/vishvananda/netlink/rule_linux.go +++ b/vendor/github.com/vishvananda/netlink/rule_linux.go @@ -1,6 +1,7 @@ package netlink import ( + "bytes" "fmt" "net" @@ -42,8 +43,8 @@ func ruleHandle(rule *Rule, req *nl.NetlinkRequest) error { msg.Protocol = unix.RTPROT_BOOT msg.Scope = unix.RT_SCOPE_UNIVERSE msg.Table = unix.RT_TABLE_UNSPEC - msg.Type = unix.RTN_UNSPEC - if req.NlMsghdr.Flags&unix.NLM_F_CREATE > 0 { + msg.Type = rule.Type // usually 0, same as unix.RTN_UNSPEC + if msg.Type == 0 && req.NlMsghdr.Flags&unix.NLM_F_CREATE > 0 { msg.Type = unix.RTN_UNICAST } if rule.Invert { @@ -55,6 +56,9 @@ func ruleHandle(rule *Rule, req *nl.NetlinkRequest) error { if rule.Table >= 0 && rule.Table < 256 { msg.Table = uint8(rule.Table) } + if rule.Tos != 0 { + msg.Tos = uint8(rule.Tos) + } var dstFamily uint8 var rtAttrs []*nl.RtAttr @@ -93,21 +97,19 @@ func ruleHandle(rule *Rule, req *nl.NetlinkRequest) error { req.AddData(rtAttrs[i]) } - native := nl.NativeEndian() - if rule.Priority >= 0 { b := make([]byte, 4) native.PutUint32(b, uint32(rule.Priority)) req.AddData(nl.NewRtAttr(nl.FRA_PRIORITY, b)) } - if rule.Mark >= 0 { + if rule.Mark != 0 || rule.Mask != nil { b := make([]byte, 4) - native.PutUint32(b, uint32(rule.Mark)) + native.PutUint32(b, rule.Mark) req.AddData(nl.NewRtAttr(nl.FRA_FWMARK, b)) } - if rule.Mask >= 0 { + if rule.Mask != nil { b := make([]byte, 4) - native.PutUint32(b, uint32(rule.Mask)) + native.PutUint32(b, *rule.Mask) req.AddData(nl.NewRtAttr(nl.FRA_FWMASK, b)) } if rule.Flow >= 0 { @@ -138,10 +140,10 @@ func ruleHandle(rule *Rule, req *nl.NetlinkRequest) error { } } if rule.IifName != "" { - req.AddData(nl.NewRtAttr(nl.FRA_IIFNAME, []byte(rule.IifName))) + req.AddData(nl.NewRtAttr(nl.FRA_IIFNAME, []byte(rule.IifName+"\x00"))) } if rule.OifName != "" { - req.AddData(nl.NewRtAttr(nl.FRA_OIFNAME, []byte(rule.OifName))) + req.AddData(nl.NewRtAttr(nl.FRA_OIFNAME, []byte(rule.OifName+"\x00"))) } if rule.Goto >= 0 { msg.Type = nl.FR_ACT_GOTO @@ -150,6 +152,31 @@ func ruleHandle(rule *Rule, req *nl.NetlinkRequest) error { req.AddData(nl.NewRtAttr(nl.FRA_GOTO, b)) } + if rule.IPProto > 0 { + b := make([]byte, 4) + native.PutUint32(b, uint32(rule.IPProto)) + req.AddData(nl.NewRtAttr(nl.FRA_IP_PROTO, b)) + } + + if rule.Dport != nil { + b := rule.Dport.toRtAttrData() + req.AddData(nl.NewRtAttr(nl.FRA_DPORT_RANGE, b)) + } + + if rule.Sport != nil { + b := rule.Sport.toRtAttrData() + req.AddData(nl.NewRtAttr(nl.FRA_SPORT_RANGE, b)) + } + + if rule.UIDRange != nil { + b := rule.UIDRange.toRtAttrData() + req.AddData(nl.NewRtAttr(nl.FRA_UID_RANGE, b)) + } + + if rule.Protocol > 0 { + req.AddData(nl.NewRtAttr(nl.FRA_PROTOCOL, nl.Uint8Attr(rule.Protocol))) + } + _, err := req.Execute(unix.NETLINK_ROUTE, 0) return err } @@ -163,6 +190,19 @@ func RuleList(family int) ([]Rule, error) { // RuleList lists rules in the system. // Equivalent to: ip rule list func (h *Handle) RuleList(family int) ([]Rule, error) { + return h.RuleListFiltered(family, nil, 0) +} + +// RuleListFiltered gets a list of rules in the system filtered by the +// specified rule template `filter`. +// Equivalent to: ip rule list +func RuleListFiltered(family int, filter *Rule, filterMask uint64) ([]Rule, error) { + return pkgHandle.RuleListFiltered(family, filter, filterMask) +} + +// RuleListFiltered lists rules in the system. +// Equivalent to: ip rule list +func (h *Handle) RuleListFiltered(family int, filter *Rule, filterMask uint64) ([]Rule, error) { req := h.newNetlinkRequest(unix.RTM_GETRULE, unix.NLM_F_DUMP|unix.NLM_F_REQUEST) msg := nl.NewIfInfomsg(family) req.AddData(msg) @@ -172,7 +212,6 @@ func (h *Handle) RuleList(family int) ([]Rule, error) { return nil, err } - native := nl.NativeEndian() var res = make([]Rule, 0) for i := range msgs { msg := nl.DeserializeRtMsg(msgs[i]) @@ -182,8 +221,11 @@ func (h *Handle) RuleList(family int) ([]Rule, error) { } rule := NewRule() + rule.Priority = 0 // The default priority from kernel rule.Invert = msg.Flags&FibRuleInvert > 0 + rule.Family = int(msg.Family) + rule.Tos = uint(msg.Tos) for j := range attrs { switch attrs[j].Attr.Type { @@ -200,11 +242,12 @@ func (h *Handle) RuleList(family int) ([]Rule, error) { Mask: net.CIDRMask(int(msg.Dst_len), 8*len(attrs[j].Value)), } case nl.FRA_FWMARK: - rule.Mark = int(native.Uint32(attrs[j].Value[0:4])) + rule.Mark = native.Uint32(attrs[j].Value[0:4]) case nl.FRA_FWMASK: - rule.Mask = int(native.Uint32(attrs[j].Value[0:4])) + mask := native.Uint32(attrs[j].Value[0:4]) + rule.Mask = &mask case nl.FRA_TUN_ID: - rule.TunID = uint(native.Uint64(attrs[j].Value[0:4])) + rule.TunID = uint(native.Uint64(attrs[j].Value[0:8])) case nl.FRA_IIFNAME: rule.IifName = string(attrs[j].Value[:len(attrs[j].Value)-1]) case nl.FRA_OIFNAME: @@ -225,10 +268,98 @@ func (h *Handle) RuleList(family int) ([]Rule, error) { rule.Goto = int(native.Uint32(attrs[j].Value[0:4])) case nl.FRA_PRIORITY: rule.Priority = int(native.Uint32(attrs[j].Value[0:4])) + case nl.FRA_IP_PROTO: + rule.IPProto = int(native.Uint32(attrs[j].Value[0:4])) + case nl.FRA_DPORT_RANGE: + rule.Dport = NewRulePortRange(native.Uint16(attrs[j].Value[0:2]), native.Uint16(attrs[j].Value[2:4])) + case nl.FRA_SPORT_RANGE: + rule.Sport = NewRulePortRange(native.Uint16(attrs[j].Value[0:2]), native.Uint16(attrs[j].Value[2:4])) + case nl.FRA_UID_RANGE: + rule.UIDRange = NewRuleUIDRange(native.Uint32(attrs[j].Value[0:4]), native.Uint32(attrs[j].Value[4:8])) + case nl.FRA_PROTOCOL: + rule.Protocol = uint8(attrs[j].Value[0]) + } + } + + if filter != nil { + switch { + case filterMask&RT_FILTER_SRC != 0 && + (rule.Src == nil || rule.Src.String() != filter.Src.String()): + continue + case filterMask&RT_FILTER_DST != 0 && + (rule.Dst == nil || rule.Dst.String() != filter.Dst.String()): + continue + case filterMask&RT_FILTER_TABLE != 0 && + filter.Table != unix.RT_TABLE_UNSPEC && rule.Table != filter.Table: + continue + case filterMask&RT_FILTER_TOS != 0 && rule.Tos != filter.Tos: + continue + case filterMask&RT_FILTER_PRIORITY != 0 && rule.Priority != filter.Priority: + continue + case filterMask&RT_FILTER_MARK != 0 && rule.Mark != filter.Mark: + continue + case filterMask&RT_FILTER_MASK != 0 && !ptrEqual(rule.Mask, filter.Mask): + continue } } + res = append(res, *rule) } return res, nil } + +func (pr *RulePortRange) toRtAttrData() []byte { + b := [][]byte{make([]byte, 2), make([]byte, 2)} + native.PutUint16(b[0], pr.Start) + native.PutUint16(b[1], pr.End) + return bytes.Join(b, []byte{}) +} + +func (pr *RuleUIDRange) toRtAttrData() []byte { + b := [][]byte{make([]byte, 4), make([]byte, 4)} + native.PutUint32(b[0], pr.Start) + native.PutUint32(b[1], pr.End) + return bytes.Join(b, []byte{}) +} + +func ptrEqual(a, b *uint32) bool { + if a == b { + return true + } + if (a == nil) || (b == nil) { + return false + } + return *a == *b +} + +func (r Rule) typeString() string { + switch r.Type { + case unix.RTN_UNSPEC: // zero + return "" + case unix.RTN_UNICAST: + return "" + case unix.RTN_LOCAL: + return "local" + case unix.RTN_BROADCAST: + return "broadcast" + case unix.RTN_ANYCAST: + return "anycast" + case unix.RTN_MULTICAST: + return "multicast" + case unix.RTN_BLACKHOLE: + return "blackhole" + case unix.RTN_UNREACHABLE: + return "unreachable" + case unix.RTN_PROHIBIT: + return "prohibit" + case unix.RTN_THROW: + return "throw" + case unix.RTN_NAT: + return "nat" + case unix.RTN_XRESOLVE: + return "xresolve" + default: + return fmt.Sprintf("type(0x%x)", r.Type) + } +} diff --git a/vendor/github.com/vishvananda/netlink/rule_nonlinux.go b/vendor/github.com/vishvananda/netlink/rule_nonlinux.go new file mode 100644 index 000000000..2b19aa64c --- /dev/null +++ b/vendor/github.com/vishvananda/netlink/rule_nonlinux.go @@ -0,0 +1,8 @@ +//go:build !linux +// +build !linux + +package netlink + +func (r Rule) typeString() string { + return "" +} diff --git a/vendor/github.com/vishvananda/netlink/socket.go b/vendor/github.com/vishvananda/netlink/socket.go index 41aa72624..e65efb130 100644 --- a/vendor/github.com/vishvananda/netlink/socket.go +++ b/vendor/github.com/vishvananda/netlink/socket.go @@ -25,3 +25,80 @@ type Socket struct { UID uint32 INode uint32 } + +// UnixSocket represents a netlink unix socket. +type UnixSocket struct { + Type uint8 + Family uint8 + State uint8 + pad uint8 + INode uint32 + Cookie [2]uint32 +} + +// XDPSocket represents an XDP socket (and the common diagnosis part in +// particular). Please note that in contrast to [UnixSocket] the XDPSocket type +// does not feature “State” information. +type XDPSocket struct { + // xdp_diag_msg + // https://elixir.bootlin.com/linux/v6.2/source/include/uapi/linux/xdp_diag.h#L21 + Family uint8 + Type uint8 + pad uint16 + Ino uint32 + Cookie [2]uint32 +} + +type XDPInfo struct { + // XDP_DIAG_INFO/xdp_diag_info + // https://elixir.bootlin.com/linux/v6.2/source/include/uapi/linux/xdp_diag.h#L51 + Ifindex uint32 + QueueID uint32 + + // XDP_DIAG_UID + UID uint32 + + // XDP_RX_RING + // https://elixir.bootlin.com/linux/v6.2/source/include/uapi/linux/xdp_diag.h#L56 + RxRingEntries uint32 + TxRingEntries uint32 + UmemFillRingEntries uint32 + UmemCompletionRingEntries uint32 + + // XDR_DIAG_UMEM + Umem *XDPDiagUmem + + // XDR_DIAG_STATS + Stats *XDPDiagStats +} + +const ( + XDP_DU_F_ZEROCOPY = 1 << iota +) + +// XDPDiagUmem describes the umem attached to an XDP socket. +// +// https://elixir.bootlin.com/linux/v6.2/source/include/uapi/linux/xdp_diag.h#L62 +type XDPDiagUmem struct { + Size uint64 + ID uint32 + NumPages uint32 + ChunkSize uint32 + Headroom uint32 + Ifindex uint32 + QueueID uint32 + Flags uint32 + Refs uint32 +} + +// XDPDiagStats contains ring statistics for an XDP socket. +// +// https://elixir.bootlin.com/linux/v6.2/source/include/uapi/linux/xdp_diag.h#L74 +type XDPDiagStats struct { + RxDropped uint64 + RxInvalid uint64 + RxFull uint64 + FillRingEmpty uint64 + TxInvalid uint64 + TxRingEmpty uint64 +} diff --git a/vendor/github.com/vishvananda/netlink/socket_linux.go b/vendor/github.com/vishvananda/netlink/socket_linux.go index c4d89c17e..4eb4aeafb 100644 --- a/vendor/github.com/vishvananda/netlink/socket_linux.go +++ b/vendor/github.com/vishvananda/netlink/socket_linux.go @@ -4,15 +4,18 @@ import ( "errors" "fmt" "net" + "syscall" "github.com/vishvananda/netlink/nl" "golang.org/x/sys/unix" ) const ( - sizeofSocketID = 0x30 - sizeofSocketRequest = sizeofSocketID + 0x8 - sizeofSocket = sizeofSocketID + 0x18 + sizeofSocketID = 0x30 + sizeofSocketRequest = sizeofSocketID + 0x8 + sizeofSocket = sizeofSocketID + 0x18 + sizeofUnixSocketRequest = 0x18 // 24 byte + sizeofUnixSocket = 0x10 // 16 byte ) type socketRequest struct { @@ -49,10 +52,13 @@ func (r *socketRequest) Serialize() []byte { native.PutUint32(b.Next(4), r.States) networkOrder.PutUint16(b.Next(2), r.ID.SourcePort) networkOrder.PutUint16(b.Next(2), r.ID.DestinationPort) - copy(b.Next(4), r.ID.Source.To4()) - b.Next(12) - copy(b.Next(4), r.ID.Destination.To4()) - b.Next(12) + if r.Family == unix.AF_INET6 { + copy(b.Next(16), r.ID.Source) + copy(b.Next(16), r.ID.Destination) + } else { + copy(b.Next(16), r.ID.Source.To4()) + copy(b.Next(16), r.ID.Destination.To4()) + } native.PutUint32(b.Next(4), r.ID.Interface) native.PutUint32(b.Next(4), r.ID.Cookie[0]) native.PutUint32(b.Next(4), r.ID.Cookie[1]) @@ -61,6 +67,32 @@ func (r *socketRequest) Serialize() []byte { func (r *socketRequest) Len() int { return sizeofSocketRequest } +// According to linux/include/uapi/linux/unix_diag.h +type unixSocketRequest struct { + Family uint8 + Protocol uint8 + pad uint16 + States uint32 + INode uint32 + Show uint32 + Cookie [2]uint32 +} + +func (r *unixSocketRequest) Serialize() []byte { + b := writeBuffer{Bytes: make([]byte, sizeofUnixSocketRequest)} + b.Write(r.Family) + b.Write(r.Protocol) + native.PutUint16(b.Next(2), r.pad) + native.PutUint32(b.Next(4), r.States) + native.PutUint32(b.Next(4), r.INode) + native.PutUint32(b.Next(4), r.Show) + native.PutUint32(b.Next(4), r.Cookie[0]) + native.PutUint32(b.Next(4), r.Cookie[1]) + return b.Bytes +} + +func (r *unixSocketRequest) Len() int { return sizeofUnixSocketRequest } + type readBuffer struct { Bytes []byte pos int @@ -89,10 +121,15 @@ func (s *Socket) deserialize(b []byte) error { s.Retrans = rb.Read() s.ID.SourcePort = networkOrder.Uint16(rb.Next(2)) s.ID.DestinationPort = networkOrder.Uint16(rb.Next(2)) - s.ID.Source = net.IPv4(rb.Read(), rb.Read(), rb.Read(), rb.Read()) - rb.Next(12) - s.ID.Destination = net.IPv4(rb.Read(), rb.Read(), rb.Read(), rb.Read()) - rb.Next(12) + if s.Family == unix.AF_INET6 { + s.ID.Source = net.IP(rb.Next(16)) + s.ID.Destination = net.IP(rb.Next(16)) + } else { + s.ID.Source = net.IPv4(rb.Read(), rb.Read(), rb.Read(), rb.Read()) + rb.Next(12) + s.ID.Destination = net.IPv4(rb.Read(), rb.Read(), rb.Read(), rb.Read()) + rb.Next(12) + } s.ID.Interface = native.Uint32(rb.Next(4)) s.ID.Cookie[0] = native.Uint32(rb.Next(4)) s.ID.Cookie[1] = native.Uint32(rb.Next(4)) @@ -104,31 +141,126 @@ func (s *Socket) deserialize(b []byte) error { return nil } +func (u *UnixSocket) deserialize(b []byte) error { + if len(b) < sizeofUnixSocket { + return fmt.Errorf("unix diag data short read (%d); want %d", len(b), sizeofUnixSocket) + } + rb := readBuffer{Bytes: b} + u.Type = rb.Read() + u.Family = rb.Read() + u.State = rb.Read() + u.pad = rb.Read() + u.INode = native.Uint32(rb.Next(4)) + u.Cookie[0] = native.Uint32(rb.Next(4)) + u.Cookie[1] = native.Uint32(rb.Next(4)) + return nil +} + +// SocketGet returns the Socket identified by its local and remote addresses. +func (h *Handle) SocketGet(local, remote net.Addr) (*Socket, error) { + var protocol uint8 + var localIP, remoteIP net.IP + var localPort, remotePort uint16 + switch l := local.(type) { + case *net.TCPAddr: + r, ok := remote.(*net.TCPAddr) + if !ok { + return nil, ErrNotImplemented + } + localIP = l.IP + localPort = uint16(l.Port) + remoteIP = r.IP + remotePort = uint16(r.Port) + protocol = unix.IPPROTO_TCP + case *net.UDPAddr: + r, ok := remote.(*net.UDPAddr) + if !ok { + return nil, ErrNotImplemented + } + localIP = l.IP + localPort = uint16(l.Port) + remoteIP = r.IP + remotePort = uint16(r.Port) + protocol = unix.IPPROTO_UDP + default: + return nil, ErrNotImplemented + } + + var family uint8 + if localIP.To4() != nil && remoteIP.To4() != nil { + family = unix.AF_INET + } + + if family == 0 && localIP.To16() != nil && remoteIP.To16() != nil { + family = unix.AF_INET6 + } + + if family == 0 { + return nil, ErrNotImplemented + } + + req := h.newNetlinkRequest(nl.SOCK_DIAG_BY_FAMILY, unix.NLM_F_DUMP) + req.AddData(&socketRequest{ + Family: family, + Protocol: protocol, + States: 0xffffffff, + ID: SocketID{ + SourcePort: localPort, + DestinationPort: remotePort, + Source: localIP, + Destination: remoteIP, + Cookie: [2]uint32{nl.TCPDIAG_NOCOOKIE, nl.TCPDIAG_NOCOOKIE}, + }, + }) + + msgs, err := req.Execute(unix.NETLINK_INET_DIAG, nl.SOCK_DIAG_BY_FAMILY) + if err != nil { + return nil, err + } + if len(msgs) == 0 { + return nil, errors.New("no message nor error from netlink") + } + if len(msgs) > 2 { + return nil, fmt.Errorf("multiple (%d) matching sockets", len(msgs)) + } + + sock := &Socket{} + if err := sock.deserialize(msgs[0]); err != nil { + return nil, err + } + return sock, nil +} + // SocketGet returns the Socket identified by its local and remote addresses. func SocketGet(local, remote net.Addr) (*Socket, error) { + return pkgHandle.SocketGet(local, remote) +} + +// SocketDestroy kills the Socket identified by its local and remote addresses. +func (h *Handle) SocketDestroy(local, remote net.Addr) error { localTCP, ok := local.(*net.TCPAddr) if !ok { - return nil, ErrNotImplemented + return ErrNotImplemented } remoteTCP, ok := remote.(*net.TCPAddr) if !ok { - return nil, ErrNotImplemented + return ErrNotImplemented } localIP := localTCP.IP.To4() if localIP == nil { - return nil, ErrNotImplemented + return ErrNotImplemented } remoteIP := remoteTCP.IP.To4() if remoteIP == nil { - return nil, ErrNotImplemented + return ErrNotImplemented } s, err := nl.Subscribe(unix.NETLINK_INET_DIAG) if err != nil { - return nil, err + return err } defer s.Close() - req := nl.NewNetlinkRequest(nl.SOCK_DIAG_BY_FAMILY, 0) + req := h.newNetlinkRequest(nl.SOCK_DESTROY, unix.NLM_F_ACK) req.AddData(&socketRequest{ Family: unix.AF_INET, Protocol: unix.IPPROTO_TCP, @@ -140,23 +272,319 @@ func SocketGet(local, remote net.Addr) (*Socket, error) { Cookie: [2]uint32{nl.TCPDIAG_NOCOOKIE, nl.TCPDIAG_NOCOOKIE}, }, }) - s.Send(req) - msgs, from, err := s.Receive() + + _, err = req.Execute(unix.NETLINK_INET_DIAG, 0) + return err +} + +// SocketDestroy kills the Socket identified by its local and remote addresses. +func SocketDestroy(local, remote net.Addr) error { + return pkgHandle.SocketDestroy(local, remote) +} + +// SocketDiagTCPInfo requests INET_DIAG_INFO for TCP protocol for specified family type and return with extension TCP info. +func (h *Handle) SocketDiagTCPInfo(family uint8) ([]*InetDiagTCPInfoResp, error) { + // Construct the request + req := h.newNetlinkRequest(nl.SOCK_DIAG_BY_FAMILY, unix.NLM_F_DUMP) + req.AddData(&socketRequest{ + Family: family, + Protocol: unix.IPPROTO_TCP, + Ext: (1 << (INET_DIAG_VEGASINFO - 1)) | (1 << (INET_DIAG_INFO - 1)), + States: uint32(0xfff), // all states + }) + + // Do the query and parse the result + var result []*InetDiagTCPInfoResp + var err error + err = req.ExecuteIter(unix.NETLINK_INET_DIAG, nl.SOCK_DIAG_BY_FAMILY, func(msg []byte) bool { + sockInfo := &Socket{} + if err = sockInfo.deserialize(msg); err != nil { + return false + } + var attrs []syscall.NetlinkRouteAttr + if attrs, err = nl.ParseRouteAttr(msg[sizeofSocket:]); err != nil { + return false + } + + var res *InetDiagTCPInfoResp + if res, err = attrsToInetDiagTCPInfoResp(attrs, sockInfo); err != nil { + return false + } + + result = append(result, res) + return true + }) + + if err != nil { + return nil, err + } + return result, nil +} + +// SocketDiagTCPInfo requests INET_DIAG_INFO for TCP protocol for specified family type and return with extension TCP info. +func SocketDiagTCPInfo(family uint8) ([]*InetDiagTCPInfoResp, error) { + return pkgHandle.SocketDiagTCPInfo(family) +} + +// SocketDiagTCP requests INET_DIAG_INFO for TCP protocol for specified family type and return related socket. +func (h *Handle) SocketDiagTCP(family uint8) ([]*Socket, error) { + // Construct the request + req := h.newNetlinkRequest(nl.SOCK_DIAG_BY_FAMILY, unix.NLM_F_DUMP) + req.AddData(&socketRequest{ + Family: family, + Protocol: unix.IPPROTO_TCP, + Ext: (1 << (INET_DIAG_VEGASINFO - 1)) | (1 << (INET_DIAG_INFO - 1)), + States: uint32(0xfff), // all states + }) + + // Do the query and parse the result + var result []*Socket + var err error + err = req.ExecuteIter(unix.NETLINK_INET_DIAG, nl.SOCK_DIAG_BY_FAMILY, func(msg []byte) bool { + sockInfo := &Socket{} + if err = sockInfo.deserialize(msg); err != nil { + return false + } + result = append(result, sockInfo) + return true + }) if err != nil { return nil, err } - if from.Pid != nl.PidKernel { - return nil, fmt.Errorf("Wrong sender portid %d, expected %d", from.Pid, nl.PidKernel) + return result, nil +} + +// SocketDiagTCP requests INET_DIAG_INFO for TCP protocol for specified family type and return related socket. +func SocketDiagTCP(family uint8) ([]*Socket, error) { + return pkgHandle.SocketDiagTCP(family) +} + +// SocketDiagUDPInfo requests INET_DIAG_INFO for UDP protocol for specified family type and return with extension info. +func (h *Handle) SocketDiagUDPInfo(family uint8) ([]*InetDiagUDPInfoResp, error) { + // Construct the request + var extensions uint8 + extensions = 1 << (INET_DIAG_VEGASINFO - 1) + extensions |= 1 << (INET_DIAG_INFO - 1) + extensions |= 1 << (INET_DIAG_MEMINFO - 1) + + req := h.newNetlinkRequest(nl.SOCK_DIAG_BY_FAMILY, unix.NLM_F_DUMP) + req.AddData(&socketRequest{ + Family: family, + Protocol: unix.IPPROTO_UDP, + Ext: extensions, + States: uint32(0xfff), // all states + }) + + // Do the query and parse the result + var result []*InetDiagUDPInfoResp + var err error + err = req.ExecuteIter(unix.NETLINK_INET_DIAG, nl.SOCK_DIAG_BY_FAMILY, func(msg []byte) bool { + sockInfo := &Socket{} + if err = sockInfo.deserialize(msg); err != nil { + return false + } + + var attrs []syscall.NetlinkRouteAttr + if attrs, err = nl.ParseRouteAttr(msg[sizeofSocket:]); err != nil { + return false + } + + var res *InetDiagUDPInfoResp + if res, err = attrsToInetDiagUDPInfoResp(attrs, sockInfo); err != nil { + return false + } + + result = append(result, res) + return true + }) + if err != nil { + return nil, err } - if len(msgs) == 0 { - return nil, errors.New("no message nor error from netlink") + return result, nil +} + +// SocketDiagUDPInfo requests INET_DIAG_INFO for UDP protocol for specified family type and return with extension info. +func SocketDiagUDPInfo(family uint8) ([]*InetDiagUDPInfoResp, error) { + return pkgHandle.SocketDiagUDPInfo(family) +} + +// SocketDiagUDP requests INET_DIAG_INFO for UDP protocol for specified family type and return related socket. +func (h *Handle) SocketDiagUDP(family uint8) ([]*Socket, error) { + // Construct the request + req := h.newNetlinkRequest(nl.SOCK_DIAG_BY_FAMILY, unix.NLM_F_DUMP) + req.AddData(&socketRequest{ + Family: family, + Protocol: unix.IPPROTO_UDP, + Ext: (1 << (INET_DIAG_VEGASINFO - 1)) | (1 << (INET_DIAG_INFO - 1)), + States: uint32(0xfff), // all states + }) + + // Do the query and parse the result + var result []*Socket + var err error + err = req.ExecuteIter(unix.NETLINK_INET_DIAG, nl.SOCK_DIAG_BY_FAMILY, func(msg []byte) bool { + sockInfo := &Socket{} + if err = sockInfo.deserialize(msg); err != nil { + return false + } + result = append(result, sockInfo) + return true + }) + if err != nil { + return nil, err } - if len(msgs) > 2 { - return nil, fmt.Errorf("multiple (%d) matching sockets", len(msgs)) + return result, nil +} + +// SocketDiagUDP requests INET_DIAG_INFO for UDP protocol for specified family type and return related socket. +func SocketDiagUDP(family uint8) ([]*Socket, error) { + return pkgHandle.SocketDiagUDP(family) +} + +// UnixSocketDiagInfo requests UNIX_DIAG_INFO for unix sockets and return with extension info. +func (h *Handle) UnixSocketDiagInfo() ([]*UnixDiagInfoResp, error) { + // Construct the request + var extensions uint8 + extensions = 1 << UNIX_DIAG_NAME + extensions |= 1 << UNIX_DIAG_PEER + extensions |= 1 << UNIX_DIAG_RQLEN + req := h.newNetlinkRequest(nl.SOCK_DIAG_BY_FAMILY, unix.NLM_F_DUMP) + req.AddData(&unixSocketRequest{ + Family: unix.AF_UNIX, + States: ^uint32(0), // all states + Show: uint32(extensions), + }) + + var result []*UnixDiagInfoResp + var err error + err = req.ExecuteIter(unix.NETLINK_INET_DIAG, nl.SOCK_DIAG_BY_FAMILY, func(msg []byte) bool { + sockInfo := &UnixSocket{} + if err = sockInfo.deserialize(msg); err != nil { + return false + } + + // Diagnosis also delivers sockets with AF_INET family, filter those + if sockInfo.Family != unix.AF_UNIX { + return false + } + + var attrs []syscall.NetlinkRouteAttr + if attrs, err = nl.ParseRouteAttr(msg[sizeofSocket:]); err != nil { + return false + } + + var res *UnixDiagInfoResp + if res, err = attrsToUnixDiagInfoResp(attrs, sockInfo); err != nil { + return false + } + result = append(result, res) + return true + }) + if err != nil { + return nil, err } - sock := &Socket{} - if err := sock.deserialize(msgs[0].Data); err != nil { + return result, nil +} + +// UnixSocketDiagInfo requests UNIX_DIAG_INFO for unix sockets and return with extension info. +func UnixSocketDiagInfo() ([]*UnixDiagInfoResp, error) { + return pkgHandle.UnixSocketDiagInfo() +} + +// UnixSocketDiag requests UNIX_DIAG_INFO for unix sockets. +func (h *Handle) UnixSocketDiag() ([]*UnixSocket, error) { + // Construct the request + req := h.newNetlinkRequest(nl.SOCK_DIAG_BY_FAMILY, unix.NLM_F_DUMP) + req.AddData(&unixSocketRequest{ + Family: unix.AF_UNIX, + States: ^uint32(0), // all states + }) + + var result []*UnixSocket + var err error + err = req.ExecuteIter(unix.NETLINK_INET_DIAG, nl.SOCK_DIAG_BY_FAMILY, func(msg []byte) bool { + sockInfo := &UnixSocket{} + if err = sockInfo.deserialize(msg); err != nil { + return false + } + + // Diagnosis also delivers sockets with AF_INET family, filter those + if sockInfo.Family == unix.AF_UNIX { + result = append(result, sockInfo) + } + return true + }) + if err != nil { return nil, err } - return sock, nil + return result, nil +} + +// UnixSocketDiag requests UNIX_DIAG_INFO for unix sockets. +func UnixSocketDiag() ([]*UnixSocket, error) { + return pkgHandle.UnixSocketDiag() +} + +func attrsToInetDiagTCPInfoResp(attrs []syscall.NetlinkRouteAttr, sockInfo *Socket) (*InetDiagTCPInfoResp, error) { + info := &InetDiagTCPInfoResp{ + InetDiagMsg: sockInfo, + } + for _, a := range attrs { + switch a.Attr.Type { + case INET_DIAG_INFO: + info.TCPInfo = &TCPInfo{} + if err := info.TCPInfo.deserialize(a.Value); err != nil { + return nil, err + } + case INET_DIAG_BBRINFO: + info.TCPBBRInfo = &TCPBBRInfo{} + if err := info.TCPBBRInfo.deserialize(a.Value); err != nil { + return nil, err + } + } + } + + return info, nil +} + +func attrsToInetDiagUDPInfoResp(attrs []syscall.NetlinkRouteAttr, sockInfo *Socket) (*InetDiagUDPInfoResp, error) { + info := &InetDiagUDPInfoResp{ + InetDiagMsg: sockInfo, + } + for _, a := range attrs { + switch a.Attr.Type { + case INET_DIAG_MEMINFO: + info.Memory = &MemInfo{} + if err := info.Memory.deserialize(a.Value); err != nil { + return nil, err + } + } + } + + return info, nil +} + +func attrsToUnixDiagInfoResp(attrs []syscall.NetlinkRouteAttr, sockInfo *UnixSocket) (*UnixDiagInfoResp, error) { + info := &UnixDiagInfoResp{ + DiagMsg: sockInfo, + } + for _, a := range attrs { + switch a.Attr.Type { + case UNIX_DIAG_NAME: + name := string(a.Value[:a.Attr.Len]) + info.Name = &name + case UNIX_DIAG_PEER: + peer := native.Uint32(a.Value) + info.Peer = &peer + case UNIX_DIAG_RQLEN: + info.Queue = &QueueInfo{ + RQueue: native.Uint32(a.Value[:4]), + WQueue: native.Uint32(a.Value[4:]), + } + // default: + // fmt.Println("unknown unix attribute type", a.Attr.Type, "with data", a.Value) + } + } + + return info, nil } diff --git a/vendor/github.com/vishvananda/netlink/socket_xdp_linux.go b/vendor/github.com/vishvananda/netlink/socket_xdp_linux.go new file mode 100644 index 000000000..20c82f9c7 --- /dev/null +++ b/vendor/github.com/vishvananda/netlink/socket_xdp_linux.go @@ -0,0 +1,195 @@ +package netlink + +import ( + "errors" + "fmt" + "syscall" + + "github.com/vishvananda/netlink/nl" + "golang.org/x/sys/unix" +) + +const ( + sizeofXDPSocketRequest = 1 + 1 + 2 + 4 + 4 + 2*4 + sizeofXDPSocket = 0x10 +) + +// https://elixir.bootlin.com/linux/v6.2/source/include/uapi/linux/xdp_diag.h#L12 +type xdpSocketRequest struct { + Family uint8 + Protocol uint8 + pad uint16 + Ino uint32 + Show uint32 + Cookie [2]uint32 +} + +func (r *xdpSocketRequest) Serialize() []byte { + b := writeBuffer{Bytes: make([]byte, sizeofSocketRequest)} + b.Write(r.Family) + b.Write(r.Protocol) + native.PutUint16(b.Next(2), r.pad) + native.PutUint32(b.Next(4), r.Ino) + native.PutUint32(b.Next(4), r.Show) + native.PutUint32(b.Next(4), r.Cookie[0]) + native.PutUint32(b.Next(4), r.Cookie[1]) + return b.Bytes +} + +func (r *xdpSocketRequest) Len() int { return sizeofXDPSocketRequest } + +func (s *XDPSocket) deserialize(b []byte) error { + if len(b) < sizeofXDPSocket { + return fmt.Errorf("XDP socket data short read (%d); want %d", len(b), sizeofXDPSocket) + } + rb := readBuffer{Bytes: b} + s.Family = rb.Read() + s.Type = rb.Read() + s.pad = native.Uint16(rb.Next(2)) + s.Ino = native.Uint32(rb.Next(4)) + s.Cookie[0] = native.Uint32(rb.Next(4)) + s.Cookie[1] = native.Uint32(rb.Next(4)) + return nil +} + +// XDPSocketGet returns the XDP socket identified by its inode number and/or +// socket cookie. Specify the cookie as SOCK_ANY_COOKIE if +func SocketXDPGetInfo(ino uint32, cookie uint64) (*XDPDiagInfoResp, error) { + // We have a problem here: dumping AF_XDP sockets currently does not support + // filtering. We thus need to dump all XSKs and then only filter afterwards + // :( + xsks, err := SocketDiagXDP() + if err != nil { + return nil, err + } + checkCookie := cookie != SOCK_ANY_COOKIE && cookie != 0 + crumblingCookie := [2]uint32{uint32(cookie), uint32(cookie >> 32)} + checkIno := ino != 0 + var xskinfo *XDPDiagInfoResp + for _, xsk := range xsks { + if checkIno && xsk.XDPDiagMsg.Ino != ino { + continue + } + if checkCookie && xsk.XDPDiagMsg.Cookie != crumblingCookie { + continue + } + if xskinfo != nil { + return nil, errors.New("multiple matching XDP sockets") + } + xskinfo = xsk + } + if xskinfo == nil { + return nil, errors.New("no matching XDP socket") + } + return xskinfo, nil +} + +// SocketDiagXDP requests XDP_DIAG_INFO for XDP family sockets. +func SocketDiagXDP() ([]*XDPDiagInfoResp, error) { + var result []*XDPDiagInfoResp + err := socketDiagXDPExecutor(func(m syscall.NetlinkMessage) error { + sockInfo := &XDPSocket{} + if err := sockInfo.deserialize(m.Data); err != nil { + return err + } + attrs, err := nl.ParseRouteAttr(m.Data[sizeofXDPSocket:]) + if err != nil { + return err + } + + res, err := attrsToXDPDiagInfoResp(attrs, sockInfo) + if err != nil { + return err + } + + result = append(result, res) + return nil + }) + if err != nil { + return nil, err + } + return result, nil +} + +// socketDiagXDPExecutor requests XDP_DIAG_INFO for XDP family sockets. +func socketDiagXDPExecutor(receiver func(syscall.NetlinkMessage) error) error { + s, err := nl.Subscribe(unix.NETLINK_INET_DIAG) + if err != nil { + return err + } + defer s.Close() + + req := nl.NewNetlinkRequest(nl.SOCK_DIAG_BY_FAMILY, unix.NLM_F_DUMP) + req.AddData(&xdpSocketRequest{ + Family: unix.AF_XDP, + Show: XDP_SHOW_INFO | XDP_SHOW_RING_CFG | XDP_SHOW_UMEM | XDP_SHOW_STATS, + }) + if err := s.Send(req); err != nil { + return err + } + +loop: + for { + msgs, from, err := s.Receive() + if err != nil { + return err + } + if from.Pid != nl.PidKernel { + return fmt.Errorf("Wrong sender portid %d, expected %d", from.Pid, nl.PidKernel) + } + if len(msgs) == 0 { + return errors.New("no message nor error from netlink") + } + + for _, m := range msgs { + switch m.Header.Type { + case unix.NLMSG_DONE: + break loop + case unix.NLMSG_ERROR: + error := int32(native.Uint32(m.Data[0:4])) + return syscall.Errno(-error) + } + if err := receiver(m); err != nil { + return err + } + } + } + return nil +} + +func attrsToXDPDiagInfoResp(attrs []syscall.NetlinkRouteAttr, sockInfo *XDPSocket) (*XDPDiagInfoResp, error) { + resp := &XDPDiagInfoResp{ + XDPDiagMsg: sockInfo, + XDPInfo: &XDPInfo{}, + } + for _, a := range attrs { + switch a.Attr.Type { + case XDP_DIAG_INFO: + resp.XDPInfo.Ifindex = native.Uint32(a.Value[0:4]) + resp.XDPInfo.QueueID = native.Uint32(a.Value[4:8]) + case XDP_DIAG_UID: + resp.XDPInfo.UID = native.Uint32(a.Value[0:4]) + case XDP_DIAG_RX_RING: + resp.XDPInfo.RxRingEntries = native.Uint32(a.Value[0:4]) + case XDP_DIAG_TX_RING: + resp.XDPInfo.TxRingEntries = native.Uint32(a.Value[0:4]) + case XDP_DIAG_UMEM_FILL_RING: + resp.XDPInfo.UmemFillRingEntries = native.Uint32(a.Value[0:4]) + case XDP_DIAG_UMEM_COMPLETION_RING: + resp.XDPInfo.UmemCompletionRingEntries = native.Uint32(a.Value[0:4]) + case XDP_DIAG_UMEM: + umem := &XDPDiagUmem{} + if err := umem.deserialize(a.Value); err != nil { + return nil, err + } + resp.XDPInfo.Umem = umem + case XDP_DIAG_STATS: + stats := &XDPDiagStats{} + if err := stats.deserialize(a.Value); err != nil { + return nil, err + } + resp.XDPInfo.Stats = stats + } + } + return resp, nil +} diff --git a/vendor/github.com/vishvananda/netlink/tcp.go b/vendor/github.com/vishvananda/netlink/tcp.go new file mode 100644 index 000000000..43f80a0fc --- /dev/null +++ b/vendor/github.com/vishvananda/netlink/tcp.go @@ -0,0 +1,92 @@ +package netlink + +// TCP States +const ( + TCP_ESTABLISHED = iota + 0x01 + TCP_SYN_SENT + TCP_SYN_RECV + TCP_FIN_WAIT1 + TCP_FIN_WAIT2 + TCP_TIME_WAIT + TCP_CLOSE + TCP_CLOSE_WAIT + TCP_LAST_ACK + TCP_LISTEN + TCP_CLOSING + TCP_NEW_SYN_REC + TCP_MAX_STATES +) + +type TCPInfo struct { + State uint8 + Ca_state uint8 + Retransmits uint8 + Probes uint8 + Backoff uint8 + Options uint8 + Snd_wscale uint8 // no uint4 + Rcv_wscale uint8 + Delivery_rate_app_limited uint8 + Fastopen_client_fail uint8 + Rto uint32 + Ato uint32 + Snd_mss uint32 + Rcv_mss uint32 + Unacked uint32 + Sacked uint32 + Lost uint32 + Retrans uint32 + Fackets uint32 + Last_data_sent uint32 + Last_ack_sent uint32 + Last_data_recv uint32 + Last_ack_recv uint32 + Pmtu uint32 + Rcv_ssthresh uint32 + Rtt uint32 + Rttvar uint32 + Snd_ssthresh uint32 + Snd_cwnd uint32 + Advmss uint32 + Reordering uint32 + Rcv_rtt uint32 + Rcv_space uint32 + Total_retrans uint32 + Pacing_rate uint64 + Max_pacing_rate uint64 + Bytes_acked uint64 /* RFC4898 tcpEStatsAppHCThruOctetsAcked */ + Bytes_received uint64 /* RFC4898 tcpEStatsAppHCThruOctetsReceived */ + Segs_out uint32 /* RFC4898 tcpEStatsPerfSegsOut */ + Segs_in uint32 /* RFC4898 tcpEStatsPerfSegsIn */ + Notsent_bytes uint32 + Min_rtt uint32 + Data_segs_in uint32 /* RFC4898 tcpEStatsDataSegsIn */ + Data_segs_out uint32 /* RFC4898 tcpEStatsDataSegsOut */ + Delivery_rate uint64 + Busy_time uint64 /* Time (usec) busy sending data */ + Rwnd_limited uint64 /* Time (usec) limited by receive window */ + Sndbuf_limited uint64 /* Time (usec) limited by send buffer */ + Delivered uint32 + Delivered_ce uint32 + Bytes_sent uint64 /* RFC4898 tcpEStatsPerfHCDataOctetsOut */ + Bytes_retrans uint64 /* RFC4898 tcpEStatsPerfOctetsRetrans */ + Dsack_dups uint32 /* RFC4898 tcpEStatsStackDSACKDups */ + Reord_seen uint32 /* reordering events seen */ + Rcv_ooopack uint32 /* Out-of-order packets received */ + Snd_wnd uint32 /* peer's advertised receive window after * scaling (bytes) */ +} + +type TCPBBRInfo struct { + BBRBW uint64 + BBRMinRTT uint32 + BBRPacingGain uint32 + BBRCwndGain uint32 +} + +// According to https://man7.org/linux/man-pages/man7/sock_diag.7.html +type MemInfo struct { + RMem uint32 + WMem uint32 + FMem uint32 + TMem uint32 +} diff --git a/vendor/github.com/vishvananda/netlink/tcp_linux.go b/vendor/github.com/vishvananda/netlink/tcp_linux.go new file mode 100644 index 000000000..e98036da5 --- /dev/null +++ b/vendor/github.com/vishvananda/netlink/tcp_linux.go @@ -0,0 +1,368 @@ +package netlink + +import ( + "bytes" + "errors" + "io" +) + +const ( + tcpBBRInfoLen = 20 + memInfoLen = 16 +) + +func checkDeserErr(err error) error { + if err == io.EOF { + return nil + } + return err +} + +func (t *TCPInfo) deserialize(b []byte) error { + var err error + rb := bytes.NewBuffer(b) + + t.State, err = rb.ReadByte() + if err != nil { + return checkDeserErr(err) + } + + t.Ca_state, err = rb.ReadByte() + if err != nil { + return checkDeserErr(err) + } + + t.Retransmits, err = rb.ReadByte() + if err != nil { + return checkDeserErr(err) + } + + t.Probes, err = rb.ReadByte() + if err != nil { + return checkDeserErr(err) + } + + t.Backoff, err = rb.ReadByte() + if err != nil { + return checkDeserErr(err) + } + t.Options, err = rb.ReadByte() + if err != nil { + return checkDeserErr(err) + } + + scales, err := rb.ReadByte() + if err != nil { + return checkDeserErr(err) + } + t.Snd_wscale = scales >> 4 // first 4 bits + t.Rcv_wscale = scales & 0xf // last 4 bits + + rateLimAndFastOpen, err := rb.ReadByte() + if err != nil { + return checkDeserErr(err) + } + t.Delivery_rate_app_limited = rateLimAndFastOpen >> 7 // get first bit + t.Fastopen_client_fail = rateLimAndFastOpen >> 5 & 3 // get next two bits + + next := rb.Next(4) + if len(next) == 0 { + return nil + } + t.Rto = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Ato = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Snd_mss = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Rcv_mss = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Unacked = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Sacked = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Lost = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Retrans = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Fackets = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Last_data_sent = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Last_ack_sent = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Last_data_recv = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Last_ack_recv = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Pmtu = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Rcv_ssthresh = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Rtt = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Rttvar = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Snd_ssthresh = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Snd_cwnd = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Advmss = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Reordering = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Rcv_rtt = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Rcv_space = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Total_retrans = native.Uint32(next) + + next = rb.Next(8) + if len(next) == 0 { + return nil + } + t.Pacing_rate = native.Uint64(next) + + next = rb.Next(8) + if len(next) == 0 { + return nil + } + t.Max_pacing_rate = native.Uint64(next) + + next = rb.Next(8) + if len(next) == 0 { + return nil + } + t.Bytes_acked = native.Uint64(next) + + next = rb.Next(8) + if len(next) == 0 { + return nil + } + t.Bytes_received = native.Uint64(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Segs_out = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Segs_in = native.Uint32(next) + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Notsent_bytes = native.Uint32(next) + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Min_rtt = native.Uint32(next) + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Data_segs_in = native.Uint32(next) + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Data_segs_out = native.Uint32(next) + + next = rb.Next(8) + if len(next) == 0 { + return nil + } + t.Delivery_rate = native.Uint64(next) + + next = rb.Next(8) + if len(next) == 0 { + return nil + } + t.Busy_time = native.Uint64(next) + + next = rb.Next(8) + if len(next) == 0 { + return nil + } + t.Rwnd_limited = native.Uint64(next) + + next = rb.Next(8) + if len(next) == 0 { + return nil + } + t.Sndbuf_limited = native.Uint64(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Delivered = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Delivered_ce = native.Uint32(next) + + next = rb.Next(8) + if len(next) == 0 { + return nil + } + t.Bytes_sent = native.Uint64(next) + + next = rb.Next(8) + if len(next) == 0 { + return nil + } + t.Bytes_retrans = native.Uint64(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Dsack_dups = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Reord_seen = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Rcv_ooopack = native.Uint32(next) + + next = rb.Next(4) + if len(next) == 0 { + return nil + } + t.Snd_wnd = native.Uint32(next) + return nil +} + +func (t *TCPBBRInfo) deserialize(b []byte) error { + if len(b) != tcpBBRInfoLen { + return errors.New("Invalid length") + } + + rb := bytes.NewBuffer(b) + t.BBRBW = native.Uint64(rb.Next(8)) + t.BBRMinRTT = native.Uint32(rb.Next(4)) + t.BBRPacingGain = native.Uint32(rb.Next(4)) + t.BBRCwndGain = native.Uint32(rb.Next(4)) + + return nil +} + +func (m *MemInfo) deserialize(b []byte) error { + if len(b) != memInfoLen { + return errors.New("Invalid length") + } + + rb := bytes.NewBuffer(b) + m.RMem = native.Uint32(rb.Next(4)) + m.WMem = native.Uint32(rb.Next(4)) + m.FMem = native.Uint32(rb.Next(4)) + m.TMem = native.Uint32(rb.Next(4)) + + return nil +} diff --git a/vendor/github.com/vishvananda/netlink/unix_diag.go b/vendor/github.com/vishvananda/netlink/unix_diag.go new file mode 100644 index 000000000..d81776f36 --- /dev/null +++ b/vendor/github.com/vishvananda/netlink/unix_diag.go @@ -0,0 +1,27 @@ +package netlink + +// According to linux/include/uapi/linux/unix_diag.h +const ( + UNIX_DIAG_NAME = iota + UNIX_DIAG_VFS + UNIX_DIAG_PEER + UNIX_DIAG_ICONS + UNIX_DIAG_RQLEN + UNIX_DIAG_MEMINFO + UNIX_DIAG_SHUTDOWN + UNIX_DIAG_UID + UNIX_DIAG_MAX +) + +type UnixDiagInfoResp struct { + DiagMsg *UnixSocket + Name *string + Peer *uint32 + Queue *QueueInfo + Shutdown *uint8 +} + +type QueueInfo struct { + RQueue uint32 + WQueue uint32 +} diff --git a/vendor/github.com/vishvananda/netlink/vdpa_linux.go b/vendor/github.com/vishvananda/netlink/vdpa_linux.go new file mode 100644 index 000000000..7c15986d0 --- /dev/null +++ b/vendor/github.com/vishvananda/netlink/vdpa_linux.go @@ -0,0 +1,463 @@ +package netlink + +import ( + "fmt" + "net" + "syscall" + + "golang.org/x/sys/unix" + + "github.com/vishvananda/netlink/nl" +) + +type vdpaDevID struct { + Name string + ID uint32 +} + +// VDPADev contains info about VDPA device +type VDPADev struct { + vdpaDevID + VendorID uint32 + MaxVQS uint32 + MaxVQSize uint16 + MinVQSize uint16 +} + +// VDPADevConfig contains configuration of the VDPA device +type VDPADevConfig struct { + vdpaDevID + Features uint64 + NegotiatedFeatures uint64 + Net VDPADevConfigNet +} + +// VDPADevVStats conatins vStats for the VDPA device +type VDPADevVStats struct { + vdpaDevID + QueueIndex uint32 + Vendor []VDPADevVStatsVendor + NegotiatedFeatures uint64 +} + +// VDPADevVStatsVendor conatins name and value for vendor specific vstat option +type VDPADevVStatsVendor struct { + Name string + Value uint64 +} + +// VDPADevConfigNet conatins status and net config for the VDPA device +type VDPADevConfigNet struct { + Status VDPADevConfigNetStatus + Cfg VDPADevConfigNetCfg +} + +// VDPADevConfigNetStatus contains info about net status +type VDPADevConfigNetStatus struct { + LinkUp bool + Announce bool +} + +// VDPADevConfigNetCfg contains net config for the VDPA device +type VDPADevConfigNetCfg struct { + MACAddr net.HardwareAddr + MaxVQP uint16 + MTU uint16 +} + +// VDPAMGMTDev conatins info about VDPA management device +type VDPAMGMTDev struct { + BusName string + DevName string + SupportedClasses uint64 + SupportedFeatures uint64 + MaxVQS uint32 +} + +// VDPANewDevParams contains parameters for new VDPA device +// use SetBits to configure requried features for the device +// example: +// +// VDPANewDevParams{Features: SetBits(0, VIRTIO_NET_F_MTU, VIRTIO_NET_F_CTRL_MAC_ADDR)} +type VDPANewDevParams struct { + MACAddr net.HardwareAddr + MaxVQP uint16 + MTU uint16 + Features uint64 +} + +// SetBits set provided bits in the uint64 input value +// usage example: +// features := SetBits(0, VIRTIO_NET_F_MTU, VIRTIO_NET_F_CTRL_MAC_ADDR) +func SetBits(input uint64, pos ...int) uint64 { + for _, p := range pos { + input |= 1 << uint64(p) + } + return input +} + +// IsBitSet check if specific bit is set in the uint64 input value +// usage example: +// hasNetClass := IsBitSet(mgmtDev, VIRTIO_ID_NET) +func IsBitSet(input uint64, pos int) bool { + val := input & (1 << uint64(pos)) + return val > 0 +} + +// VDPANewDev adds new VDPA device +// Equivalent to: `vdpa dev add name mgmtdev /mgmtName [params]` +func VDPANewDev(name, mgmtBus, mgmtName string, params VDPANewDevParams) error { + return pkgHandle.VDPANewDev(name, mgmtBus, mgmtName, params) +} + +// VDPADelDev removes VDPA device +// Equivalent to: `vdpa dev del ` +func VDPADelDev(name string) error { + return pkgHandle.VDPADelDev(name) +} + +// VDPAGetDevList returns list of VDPA devices +// Equivalent to: `vdpa dev show` +func VDPAGetDevList() ([]*VDPADev, error) { + return pkgHandle.VDPAGetDevList() +} + +// VDPAGetDevByName returns VDPA device selected by name +// Equivalent to: `vdpa dev show ` +func VDPAGetDevByName(name string) (*VDPADev, error) { + return pkgHandle.VDPAGetDevByName(name) +} + +// VDPAGetDevConfigList returns list of VDPA devices configurations +// Equivalent to: `vdpa dev config show` +func VDPAGetDevConfigList() ([]*VDPADevConfig, error) { + return pkgHandle.VDPAGetDevConfigList() +} + +// VDPAGetDevConfigByName returns VDPA device configuration selected by name +// Equivalent to: `vdpa dev config show ` +func VDPAGetDevConfigByName(name string) (*VDPADevConfig, error) { + return pkgHandle.VDPAGetDevConfigByName(name) +} + +// VDPAGetDevVStats returns vstats for VDPA device +// Equivalent to: `vdpa dev vstats show qidx ` +func VDPAGetDevVStats(name string, queueIndex uint32) (*VDPADevVStats, error) { + return pkgHandle.VDPAGetDevVStats(name, queueIndex) +} + +// VDPAGetMGMTDevList returns list of mgmt devices +// Equivalent to: `vdpa mgmtdev show` +func VDPAGetMGMTDevList() ([]*VDPAMGMTDev, error) { + return pkgHandle.VDPAGetMGMTDevList() +} + +// VDPAGetMGMTDevByBusAndName returns mgmt devices selected by bus and name +// Equivalent to: `vdpa mgmtdev show /` +func VDPAGetMGMTDevByBusAndName(bus, name string) (*VDPAMGMTDev, error) { + return pkgHandle.VDPAGetMGMTDevByBusAndName(bus, name) +} + +type vdpaNetlinkMessage []syscall.NetlinkRouteAttr + +func (id *vdpaDevID) parseIDAttribute(attr syscall.NetlinkRouteAttr) { + switch attr.Attr.Type { + case nl.VDPA_ATTR_DEV_NAME: + id.Name = nl.BytesToString(attr.Value) + case nl.VDPA_ATTR_DEV_ID: + id.ID = native.Uint32(attr.Value) + } +} + +func (netStatus *VDPADevConfigNetStatus) parseStatusAttribute(value []byte) { + a := native.Uint16(value) + netStatus.Announce = (a & VIRTIO_NET_S_ANNOUNCE) > 0 + netStatus.LinkUp = (a & VIRTIO_NET_S_LINK_UP) > 0 +} + +func (d *VDPADev) parseAttributes(attrs vdpaNetlinkMessage) { + for _, a := range attrs { + d.parseIDAttribute(a) + switch a.Attr.Type { + case nl.VDPA_ATTR_DEV_VENDOR_ID: + d.VendorID = native.Uint32(a.Value) + case nl.VDPA_ATTR_DEV_MAX_VQS: + d.MaxVQS = native.Uint32(a.Value) + case nl.VDPA_ATTR_DEV_MAX_VQ_SIZE: + d.MaxVQSize = native.Uint16(a.Value) + case nl.VDPA_ATTR_DEV_MIN_VQ_SIZE: + d.MinVQSize = native.Uint16(a.Value) + } + } +} + +func (c *VDPADevConfig) parseAttributes(attrs vdpaNetlinkMessage) { + for _, a := range attrs { + c.parseIDAttribute(a) + switch a.Attr.Type { + case nl.VDPA_ATTR_DEV_NET_CFG_MACADDR: + c.Net.Cfg.MACAddr = a.Value + case nl.VDPA_ATTR_DEV_NET_STATUS: + c.Net.Status.parseStatusAttribute(a.Value) + case nl.VDPA_ATTR_DEV_NET_CFG_MAX_VQP: + c.Net.Cfg.MaxVQP = native.Uint16(a.Value) + case nl.VDPA_ATTR_DEV_NET_CFG_MTU: + c.Net.Cfg.MTU = native.Uint16(a.Value) + case nl.VDPA_ATTR_DEV_FEATURES: + c.Features = native.Uint64(a.Value) + case nl.VDPA_ATTR_DEV_NEGOTIATED_FEATURES: + c.NegotiatedFeatures = native.Uint64(a.Value) + } + } +} + +func (s *VDPADevVStats) parseAttributes(attrs vdpaNetlinkMessage) { + for _, a := range attrs { + s.parseIDAttribute(a) + switch a.Attr.Type { + case nl.VDPA_ATTR_DEV_QUEUE_INDEX: + s.QueueIndex = native.Uint32(a.Value) + case nl.VDPA_ATTR_DEV_VENDOR_ATTR_NAME: + s.Vendor = append(s.Vendor, VDPADevVStatsVendor{Name: nl.BytesToString(a.Value)}) + case nl.VDPA_ATTR_DEV_VENDOR_ATTR_VALUE: + if len(s.Vendor) == 0 { + break + } + s.Vendor[len(s.Vendor)-1].Value = native.Uint64(a.Value) + case nl.VDPA_ATTR_DEV_NEGOTIATED_FEATURES: + s.NegotiatedFeatures = native.Uint64(a.Value) + } + } +} + +func (d *VDPAMGMTDev) parseAttributes(attrs vdpaNetlinkMessage) { + for _, a := range attrs { + switch a.Attr.Type { + case nl.VDPA_ATTR_MGMTDEV_BUS_NAME: + d.BusName = nl.BytesToString(a.Value) + case nl.VDPA_ATTR_MGMTDEV_DEV_NAME: + d.DevName = nl.BytesToString(a.Value) + case nl.VDPA_ATTR_MGMTDEV_SUPPORTED_CLASSES: + d.SupportedClasses = native.Uint64(a.Value) + case nl.VDPA_ATTR_DEV_SUPPORTED_FEATURES: + d.SupportedFeatures = native.Uint64(a.Value) + case nl.VDPA_ATTR_DEV_MGMTDEV_MAX_VQS: + d.MaxVQS = native.Uint32(a.Value) + } + } +} + +func (h *Handle) vdpaRequest(command uint8, extraFlags int, attrs []*nl.RtAttr) ([]vdpaNetlinkMessage, error) { + f, err := h.GenlFamilyGet(nl.VDPA_GENL_NAME) + if err != nil { + return nil, err + } + req := h.newNetlinkRequest(int(f.ID), unix.NLM_F_ACK|extraFlags) + req.AddData(&nl.Genlmsg{ + Command: command, + Version: nl.VDPA_GENL_VERSION, + }) + for _, a := range attrs { + req.AddData(a) + } + + resp, err := req.Execute(unix.NETLINK_GENERIC, 0) + if err != nil { + return nil, err + } + messages := make([]vdpaNetlinkMessage, 0, len(resp)) + for _, m := range resp { + attrs, err := nl.ParseRouteAttr(m[nl.SizeofGenlmsg:]) + if err != nil { + return nil, err + } + messages = append(messages, attrs) + } + return messages, nil +} + +// dump all devices if dev is nil +func (h *Handle) vdpaDevGet(dev *string) ([]*VDPADev, error) { + var extraFlags int + var attrs []*nl.RtAttr + if dev != nil { + attrs = append(attrs, nl.NewRtAttr(nl.VDPA_ATTR_DEV_NAME, nl.ZeroTerminated(*dev))) + } else { + extraFlags = extraFlags | unix.NLM_F_DUMP + } + messages, err := h.vdpaRequest(nl.VDPA_CMD_DEV_GET, extraFlags, attrs) + if err != nil { + return nil, err + } + devs := make([]*VDPADev, 0, len(messages)) + for _, m := range messages { + d := &VDPADev{} + d.parseAttributes(m) + devs = append(devs, d) + } + return devs, nil +} + +// dump all devices if dev is nil +func (h *Handle) vdpaDevConfigGet(dev *string) ([]*VDPADevConfig, error) { + var extraFlags int + var attrs []*nl.RtAttr + if dev != nil { + attrs = append(attrs, nl.NewRtAttr(nl.VDPA_ATTR_DEV_NAME, nl.ZeroTerminated(*dev))) + } else { + extraFlags = extraFlags | unix.NLM_F_DUMP + } + messages, err := h.vdpaRequest(nl.VDPA_CMD_DEV_CONFIG_GET, extraFlags, attrs) + if err != nil { + return nil, err + } + cfgs := make([]*VDPADevConfig, 0, len(messages)) + for _, m := range messages { + cfg := &VDPADevConfig{} + cfg.parseAttributes(m) + cfgs = append(cfgs, cfg) + } + return cfgs, nil +} + +// dump all devices if dev is nil +func (h *Handle) vdpaMGMTDevGet(bus, dev *string) ([]*VDPAMGMTDev, error) { + var extraFlags int + var attrs []*nl.RtAttr + if dev != nil { + attrs = append(attrs, + nl.NewRtAttr(nl.VDPA_ATTR_MGMTDEV_DEV_NAME, nl.ZeroTerminated(*dev)), + ) + if bus != nil { + attrs = append(attrs, + nl.NewRtAttr(nl.VDPA_ATTR_MGMTDEV_BUS_NAME, nl.ZeroTerminated(*bus)), + ) + } + } else { + extraFlags = extraFlags | unix.NLM_F_DUMP + } + messages, err := h.vdpaRequest(nl.VDPA_CMD_MGMTDEV_GET, extraFlags, attrs) + if err != nil { + return nil, err + } + cfgs := make([]*VDPAMGMTDev, 0, len(messages)) + for _, m := range messages { + cfg := &VDPAMGMTDev{} + cfg.parseAttributes(m) + cfgs = append(cfgs, cfg) + } + return cfgs, nil +} + +// VDPANewDev adds new VDPA device +// Equivalent to: `vdpa dev add name mgmtdev /mgmtName [params]` +func (h *Handle) VDPANewDev(name, mgmtBus, mgmtName string, params VDPANewDevParams) error { + attrs := []*nl.RtAttr{ + nl.NewRtAttr(nl.VDPA_ATTR_DEV_NAME, nl.ZeroTerminated(name)), + nl.NewRtAttr(nl.VDPA_ATTR_MGMTDEV_DEV_NAME, nl.ZeroTerminated(mgmtName)), + } + if mgmtBus != "" { + attrs = append(attrs, nl.NewRtAttr(nl.VDPA_ATTR_MGMTDEV_BUS_NAME, nl.ZeroTerminated(mgmtBus))) + } + if len(params.MACAddr) != 0 { + attrs = append(attrs, nl.NewRtAttr(nl.VDPA_ATTR_DEV_NET_CFG_MACADDR, params.MACAddr)) + } + if params.MaxVQP > 0 { + attrs = append(attrs, nl.NewRtAttr(nl.VDPA_ATTR_DEV_NET_CFG_MAX_VQP, nl.Uint16Attr(params.MaxVQP))) + } + if params.MTU > 0 { + attrs = append(attrs, nl.NewRtAttr(nl.VDPA_ATTR_DEV_NET_CFG_MTU, nl.Uint16Attr(params.MTU))) + } + if params.Features > 0 { + attrs = append(attrs, nl.NewRtAttr(nl.VDPA_ATTR_DEV_FEATURES, nl.Uint64Attr(params.Features))) + } + _, err := h.vdpaRequest(nl.VDPA_CMD_DEV_NEW, 0, attrs) + return err +} + +// VDPADelDev removes VDPA device +// Equivalent to: `vdpa dev del ` +func (h *Handle) VDPADelDev(name string) error { + _, err := h.vdpaRequest(nl.VDPA_CMD_DEV_DEL, 0, []*nl.RtAttr{ + nl.NewRtAttr(nl.VDPA_ATTR_DEV_NAME, nl.ZeroTerminated(name))}) + return err +} + +// VDPAGetDevList returns list of VDPA devices +// Equivalent to: `vdpa dev show` +func (h *Handle) VDPAGetDevList() ([]*VDPADev, error) { + return h.vdpaDevGet(nil) +} + +// VDPAGetDevByName returns VDPA device selected by name +// Equivalent to: `vdpa dev show ` +func (h *Handle) VDPAGetDevByName(name string) (*VDPADev, error) { + devs, err := h.vdpaDevGet(&name) + if err != nil { + return nil, err + } + if len(devs) == 0 { + return nil, fmt.Errorf("device not found") + } + return devs[0], nil +} + +// VDPAGetDevConfigList returns list of VDPA devices configurations +// Equivalent to: `vdpa dev config show` +func (h *Handle) VDPAGetDevConfigList() ([]*VDPADevConfig, error) { + return h.vdpaDevConfigGet(nil) +} + +// VDPAGetDevConfigByName returns VDPA device configuration selected by name +// Equivalent to: `vdpa dev config show ` +func (h *Handle) VDPAGetDevConfigByName(name string) (*VDPADevConfig, error) { + cfgs, err := h.vdpaDevConfigGet(&name) + if err != nil { + return nil, err + } + if len(cfgs) == 0 { + return nil, fmt.Errorf("configuration not found") + } + return cfgs[0], nil +} + +// VDPAGetDevVStats returns vstats for VDPA device +// Equivalent to: `vdpa dev vstats show qidx ` +func (h *Handle) VDPAGetDevVStats(name string, queueIndex uint32) (*VDPADevVStats, error) { + messages, err := h.vdpaRequest(nl.VDPA_CMD_DEV_VSTATS_GET, 0, []*nl.RtAttr{ + nl.NewRtAttr(nl.VDPA_ATTR_DEV_NAME, nl.ZeroTerminated(name)), + nl.NewRtAttr(nl.VDPA_ATTR_DEV_QUEUE_INDEX, nl.Uint32Attr(queueIndex)), + }) + if err != nil { + return nil, err + } + if len(messages) == 0 { + return nil, fmt.Errorf("stats not found") + } + stats := &VDPADevVStats{} + stats.parseAttributes(messages[0]) + return stats, nil +} + +// VDPAGetMGMTDevList returns list of mgmt devices +// Equivalent to: `vdpa mgmtdev show` +func (h *Handle) VDPAGetMGMTDevList() ([]*VDPAMGMTDev, error) { + return h.vdpaMGMTDevGet(nil, nil) +} + +// VDPAGetMGMTDevByBusAndName returns mgmt devices selected by bus and name +// Equivalent to: `vdpa mgmtdev show /` +func (h *Handle) VDPAGetMGMTDevByBusAndName(bus, name string) (*VDPAMGMTDev, error) { + var busPtr *string + if bus != "" { + busPtr = &bus + } + devs, err := h.vdpaMGMTDevGet(busPtr, &name) + if err != nil { + return nil, err + } + if len(devs) == 0 { + return nil, fmt.Errorf("mgmtdev not found") + } + return devs[0], nil +} diff --git a/vendor/github.com/vishvananda/netlink/virtio.go b/vendor/github.com/vishvananda/netlink/virtio.go new file mode 100644 index 000000000..78a497bbc --- /dev/null +++ b/vendor/github.com/vishvananda/netlink/virtio.go @@ -0,0 +1,132 @@ +package netlink + +// features for virtio net +const ( + VIRTIO_NET_F_CSUM = 0 // Host handles pkts w/ partial csum + VIRTIO_NET_F_GUEST_CSUM = 1 // Guest handles pkts w/ partial csum + VIRTIO_NET_F_CTRL_GUEST_OFFLOADS = 2 // Dynamic offload configuration. + VIRTIO_NET_F_MTU = 3 // Initial MTU advice + VIRTIO_NET_F_MAC = 5 // Host has given MAC address. + VIRTIO_NET_F_GUEST_TSO4 = 7 // Guest can handle TSOv4 in. + VIRTIO_NET_F_GUEST_TSO6 = 8 // Guest can handle TSOv6 in. + VIRTIO_NET_F_GUEST_ECN = 9 // Guest can handle TSO[6] w/ ECN in. + VIRTIO_NET_F_GUEST_UFO = 10 // Guest can handle UFO in. + VIRTIO_NET_F_HOST_TSO4 = 11 // Host can handle TSOv4 in. + VIRTIO_NET_F_HOST_TSO6 = 12 // Host can handle TSOv6 in. + VIRTIO_NET_F_HOST_ECN = 13 // Host can handle TSO[6] w/ ECN in. + VIRTIO_NET_F_HOST_UFO = 14 // Host can handle UFO in. + VIRTIO_NET_F_MRG_RXBUF = 15 // Host can merge receive buffers. + VIRTIO_NET_F_STATUS = 16 // virtio_net_config.status available + VIRTIO_NET_F_CTRL_VQ = 17 // Control channel available + VIRTIO_NET_F_CTRL_RX = 18 // Control channel RX mode support + VIRTIO_NET_F_CTRL_VLAN = 19 // Control channel VLAN filtering + VIRTIO_NET_F_CTRL_RX_EXTRA = 20 // Extra RX mode control support + VIRTIO_NET_F_GUEST_ANNOUNCE = 21 // Guest can announce device on the* network + VIRTIO_NET_F_MQ = 22 // Device supports Receive Flow Steering + VIRTIO_NET_F_CTRL_MAC_ADDR = 23 // Set MAC address + VIRTIO_NET_F_VQ_NOTF_COAL = 52 // Device supports virtqueue notification coalescing + VIRTIO_NET_F_NOTF_COAL = 53 // Device supports notifications coalescing + VIRTIO_NET_F_GUEST_USO4 = 54 // Guest can handle USOv4 in. + VIRTIO_NET_F_GUEST_USO6 = 55 // Guest can handle USOv6 in. + VIRTIO_NET_F_HOST_USO = 56 // Host can handle USO in. + VIRTIO_NET_F_HASH_REPORT = 57 // Supports hash report + VIRTIO_NET_F_GUEST_HDRLEN = 59 // Guest provides the exact hdr_len value. + VIRTIO_NET_F_RSS = 60 // Supports RSS RX steering + VIRTIO_NET_F_RSC_EXT = 61 // extended coalescing info + VIRTIO_NET_F_STANDBY = 62 // Act as standby for another device with the same MAC. + VIRTIO_NET_F_SPEED_DUPLEX = 63 // Device set linkspeed and duplex + VIRTIO_NET_F_GSO = 6 // Host handles pkts any GSO type +) + +// virtio net status +const ( + VIRTIO_NET_S_LINK_UP = 1 // Link is up + VIRTIO_NET_S_ANNOUNCE = 2 // Announcement is needed +) + +// virtio config +const ( + // Do we get callbacks when the ring is completely used, even if we've + // suppressed them? + VIRTIO_F_NOTIFY_ON_EMPTY = 24 + // Can the device handle any descriptor layout? + VIRTIO_F_ANY_LAYOUT = 27 + // v1.0 compliant + VIRTIO_F_VERSION_1 = 32 + // If clear - device has the platform DMA (e.g. IOMMU) bypass quirk feature. + // If set - use platform DMA tools to access the memory. + // Note the reverse polarity (compared to most other features), + // this is for compatibility with legacy systems. + VIRTIO_F_ACCESS_PLATFORM = 33 + // Legacy name for VIRTIO_F_ACCESS_PLATFORM (for compatibility with old userspace) + VIRTIO_F_IOMMU_PLATFORM = VIRTIO_F_ACCESS_PLATFORM + // This feature indicates support for the packed virtqueue layout. + VIRTIO_F_RING_PACKED = 34 + // Inorder feature indicates that all buffers are used by the device + // in the same order in which they have been made available. + VIRTIO_F_IN_ORDER = 35 + // This feature indicates that memory accesses by the driver and the + // device are ordered in a way described by the platform. + VIRTIO_F_ORDER_PLATFORM = 36 + // Does the device support Single Root I/O Virtualization? + VIRTIO_F_SR_IOV = 37 + // This feature indicates that the driver passes extra data (besides + // identifying the virtqueue) in its device notifications. + VIRTIO_F_NOTIFICATION_DATA = 38 + // This feature indicates that the driver uses the data provided by the device + // as a virtqueue identifier in available buffer notifications. + VIRTIO_F_NOTIF_CONFIG_DATA = 39 + // This feature indicates that the driver can reset a queue individually. + VIRTIO_F_RING_RESET = 40 +) + +// virtio device ids +const ( + VIRTIO_ID_NET = 1 // virtio net + VIRTIO_ID_BLOCK = 2 // virtio block + VIRTIO_ID_CONSOLE = 3 // virtio console + VIRTIO_ID_RNG = 4 // virtio rng + VIRTIO_ID_BALLOON = 5 // virtio balloon + VIRTIO_ID_IOMEM = 6 // virtio ioMemory + VIRTIO_ID_RPMSG = 7 // virtio remote processor messaging + VIRTIO_ID_SCSI = 8 // virtio scsi + VIRTIO_ID_9P = 9 // 9p virtio console + VIRTIO_ID_MAC80211_WLAN = 10 // virtio WLAN MAC + VIRTIO_ID_RPROC_SERIAL = 11 // virtio remoteproc serial link + VIRTIO_ID_CAIF = 12 // Virtio caif + VIRTIO_ID_MEMORY_BALLOON = 13 // virtio memory balloon + VIRTIO_ID_GPU = 16 // virtio GPU + VIRTIO_ID_CLOCK = 17 // virtio clock/timer + VIRTIO_ID_INPUT = 18 // virtio input + VIRTIO_ID_VSOCK = 19 // virtio vsock transport + VIRTIO_ID_CRYPTO = 20 // virtio crypto + VIRTIO_ID_SIGNAL_DIST = 21 // virtio signal distribution device + VIRTIO_ID_PSTORE = 22 // virtio pstore device + VIRTIO_ID_IOMMU = 23 // virtio IOMMU + VIRTIO_ID_MEM = 24 // virtio mem + VIRTIO_ID_SOUND = 25 // virtio sound + VIRTIO_ID_FS = 26 // virtio filesystem + VIRTIO_ID_PMEM = 27 // virtio pmem + VIRTIO_ID_RPMB = 28 // virtio rpmb + VIRTIO_ID_MAC80211_HWSIM = 29 // virtio mac80211-hwsim + VIRTIO_ID_VIDEO_ENCODER = 30 // virtio video encoder + VIRTIO_ID_VIDEO_DECODER = 31 // virtio video decoder + VIRTIO_ID_SCMI = 32 // virtio SCMI + VIRTIO_ID_NITRO_SEC_MOD = 33 // virtio nitro secure module + VIRTIO_ID_I2C_ADAPTER = 34 // virtio i2c adapter + VIRTIO_ID_WATCHDOG = 35 // virtio watchdog + VIRTIO_ID_CAN = 36 // virtio can + VIRTIO_ID_DMABUF = 37 // virtio dmabuf + VIRTIO_ID_PARAM_SERV = 38 // virtio parameter server + VIRTIO_ID_AUDIO_POLICY = 39 // virtio audio policy + VIRTIO_ID_BT = 40 // virtio bluetooth + VIRTIO_ID_GPIO = 41 // virtio gpio + // Virtio Transitional IDs + VIRTIO_TRANS_ID_NET = 0x1000 // transitional virtio net + VIRTIO_TRANS_ID_BLOCK = 0x1001 // transitional virtio block + VIRTIO_TRANS_ID_BALLOON = 0x1002 // transitional virtio balloon + VIRTIO_TRANS_ID_CONSOLE = 0x1003 // transitional virtio console + VIRTIO_TRANS_ID_SCSI = 0x1004 // transitional virtio SCSI + VIRTIO_TRANS_ID_RNG = 0x1005 // transitional virtio rng + VIRTIO_TRANS_ID_9P = 0x1009 // transitional virtio 9p console +) diff --git a/vendor/github.com/vishvananda/netlink/xdp_diag.go b/vendor/github.com/vishvananda/netlink/xdp_diag.go new file mode 100644 index 000000000..e88825bf5 --- /dev/null +++ b/vendor/github.com/vishvananda/netlink/xdp_diag.go @@ -0,0 +1,34 @@ +package netlink + +import "github.com/vishvananda/netlink/nl" + +const SOCK_ANY_COOKIE = uint64(nl.TCPDIAG_NOCOOKIE)<<32 + uint64(nl.TCPDIAG_NOCOOKIE) + +// XDP diagnosis show flag constants to request particular information elements. +const ( + XDP_SHOW_INFO = 1 << iota + XDP_SHOW_RING_CFG + XDP_SHOW_UMEM + XDP_SHOW_MEMINFO + XDP_SHOW_STATS +) + +// XDP diag element constants +const ( + XDP_DIAG_NONE = iota + XDP_DIAG_INFO // when using XDP_SHOW_INFO + XDP_DIAG_UID // when using XDP_SHOW_INFO + XDP_DIAG_RX_RING // when using XDP_SHOW_RING_CFG + XDP_DIAG_TX_RING // when using XDP_SHOW_RING_CFG + XDP_DIAG_UMEM // when using XDP_SHOW_UMEM + XDP_DIAG_UMEM_FILL_RING // when using XDP_SHOW_UMEM + XDP_DIAG_UMEM_COMPLETION_RING // when using XDP_SHOW_UMEM + XDP_DIAG_MEMINFO // when using XDP_SHOW_MEMINFO + XDP_DIAG_STATS // when using XDP_SHOW_STATS +) + +// https://elixir.bootlin.com/linux/v6.2/source/include/uapi/linux/xdp_diag.h#L21 +type XDPDiagInfoResp struct { + XDPDiagMsg *XDPSocket + XDPInfo *XDPInfo +} diff --git a/vendor/github.com/vishvananda/netlink/xdp_linux.go b/vendor/github.com/vishvananda/netlink/xdp_linux.go new file mode 100644 index 000000000..896a406de --- /dev/null +++ b/vendor/github.com/vishvananda/netlink/xdp_linux.go @@ -0,0 +1,46 @@ +package netlink + +import ( + "bytes" + "fmt" +) + +const ( + xdrDiagUmemLen = 8 + 8*4 + xdrDiagStatsLen = 6 * 8 +) + +func (x *XDPDiagUmem) deserialize(b []byte) error { + if len(b) < xdrDiagUmemLen { + return fmt.Errorf("XDP umem diagnosis data short read (%d); want %d", len(b), xdrDiagUmemLen) + } + + rb := bytes.NewBuffer(b) + x.Size = native.Uint64(rb.Next(8)) + x.ID = native.Uint32(rb.Next(4)) + x.NumPages = native.Uint32(rb.Next(4)) + x.ChunkSize = native.Uint32(rb.Next(4)) + x.Headroom = native.Uint32(rb.Next(4)) + x.Ifindex = native.Uint32(rb.Next(4)) + x.QueueID = native.Uint32(rb.Next(4)) + x.Flags = native.Uint32(rb.Next(4)) + x.Refs = native.Uint32(rb.Next(4)) + + return nil +} + +func (x *XDPDiagStats) deserialize(b []byte) error { + if len(b) < xdrDiagStatsLen { + return fmt.Errorf("XDP diagnosis statistics short read (%d); want %d", len(b), xdrDiagStatsLen) + } + + rb := bytes.NewBuffer(b) + x.RxDropped = native.Uint64(rb.Next(8)) + x.RxInvalid = native.Uint64(rb.Next(8)) + x.RxFull = native.Uint64(rb.Next(8)) + x.FillRingEmpty = native.Uint64(rb.Next(8)) + x.TxInvalid = native.Uint64(rb.Next(8)) + x.TxRingEmpty = native.Uint64(rb.Next(8)) + + return nil +} diff --git a/vendor/github.com/vishvananda/netlink/xfrm.go b/vendor/github.com/vishvananda/netlink/xfrm_linux.go similarity index 95% rename from vendor/github.com/vishvananda/netlink/xfrm.go rename to vendor/github.com/vishvananda/netlink/xfrm_linux.go index 02b41842e..dd38ed8e0 100644 --- a/vendor/github.com/vishvananda/netlink/xfrm.go +++ b/vendor/github.com/vishvananda/netlink/xfrm_linux.go @@ -14,7 +14,7 @@ const ( XFRM_PROTO_ESP Proto = unix.IPPROTO_ESP XFRM_PROTO_AH Proto = unix.IPPROTO_AH XFRM_PROTO_HAO Proto = unix.IPPROTO_DSTOPTS - XFRM_PROTO_COMP Proto = 0x6c // NOTE not defined on darwin + XFRM_PROTO_COMP Proto = unix.IPPROTO_COMP XFRM_PROTO_IPSEC_ANY Proto = unix.IPPROTO_RAW ) diff --git a/vendor/github.com/vishvananda/netlink/xfrm_policy.go b/vendor/github.com/vishvananda/netlink/xfrm_policy.go deleted file mode 100644 index 6219d2772..000000000 --- a/vendor/github.com/vishvananda/netlink/xfrm_policy.go +++ /dev/null @@ -1,96 +0,0 @@ -package netlink - -import ( - "fmt" - "net" -) - -// Dir is an enum representing an ipsec template direction. -type Dir uint8 - -const ( - XFRM_DIR_IN Dir = iota - XFRM_DIR_OUT - XFRM_DIR_FWD - XFRM_SOCKET_IN - XFRM_SOCKET_OUT - XFRM_SOCKET_FWD -) - -func (d Dir) String() string { - switch d { - case XFRM_DIR_IN: - return "dir in" - case XFRM_DIR_OUT: - return "dir out" - case XFRM_DIR_FWD: - return "dir fwd" - case XFRM_SOCKET_IN: - return "socket in" - case XFRM_SOCKET_OUT: - return "socket out" - case XFRM_SOCKET_FWD: - return "socket fwd" - } - return fmt.Sprintf("socket %d", d-XFRM_SOCKET_IN) -} - -// PolicyAction is an enum representing an ipsec policy action. -type PolicyAction uint8 - -const ( - XFRM_POLICY_ALLOW PolicyAction = 0 - XFRM_POLICY_BLOCK PolicyAction = 1 -) - -func (a PolicyAction) String() string { - switch a { - case XFRM_POLICY_ALLOW: - return "allow" - case XFRM_POLICY_BLOCK: - return "block" - default: - return fmt.Sprintf("action %d", a) - } -} - -// XfrmPolicyTmpl encapsulates a rule for the base addresses of an ipsec -// policy. These rules are matched with XfrmState to determine encryption -// and authentication algorithms. -type XfrmPolicyTmpl struct { - Dst net.IP - Src net.IP - Proto Proto - Mode Mode - Spi int - Reqid int -} - -func (t XfrmPolicyTmpl) String() string { - return fmt.Sprintf("{Dst: %v, Src: %v, Proto: %s, Mode: %s, Spi: 0x%x, Reqid: 0x%x}", - t.Dst, t.Src, t.Proto, t.Mode, t.Spi, t.Reqid) -} - -// XfrmPolicy represents an ipsec policy. It represents the overlay network -// and has a list of XfrmPolicyTmpls representing the base addresses of -// the policy. -type XfrmPolicy struct { - Dst *net.IPNet - Src *net.IPNet - Proto Proto - DstPort int - SrcPort int - Dir Dir - Priority int - Index int - Action PolicyAction - Ifindex int - Ifid int - Mark *XfrmMark - Tmpls []XfrmPolicyTmpl -} - -func (p XfrmPolicy) String() string { - return fmt.Sprintf("{Dst: %v, Src: %v, Proto: %s, DstPort: %d, SrcPort: %d, Dir: %s, Priority: %d, Index: %d, Action: %s, Ifindex: %d, Ifid: %d, Mark: %s, Tmpls: %s}", - p.Dst, p.Src, p.Proto, p.DstPort, p.SrcPort, p.Dir, p.Priority, p.Index, p.Action, p.Ifindex, p.Ifid, p.Mark, p.Tmpls) -} diff --git a/vendor/github.com/vishvananda/netlink/xfrm_policy_linux.go b/vendor/github.com/vishvananda/netlink/xfrm_policy_linux.go index a4e132ef5..d526739ce 100644 --- a/vendor/github.com/vishvananda/netlink/xfrm_policy_linux.go +++ b/vendor/github.com/vishvananda/netlink/xfrm_policy_linux.go @@ -1,10 +1,104 @@ package netlink import ( + "fmt" + "net" + "github.com/vishvananda/netlink/nl" "golang.org/x/sys/unix" ) +// Dir is an enum representing an ipsec template direction. +type Dir uint8 + +const ( + XFRM_DIR_IN Dir = iota + XFRM_DIR_OUT + XFRM_DIR_FWD + XFRM_SOCKET_IN + XFRM_SOCKET_OUT + XFRM_SOCKET_FWD +) + +func (d Dir) String() string { + switch d { + case XFRM_DIR_IN: + return "dir in" + case XFRM_DIR_OUT: + return "dir out" + case XFRM_DIR_FWD: + return "dir fwd" + case XFRM_SOCKET_IN: + return "socket in" + case XFRM_SOCKET_OUT: + return "socket out" + case XFRM_SOCKET_FWD: + return "socket fwd" + } + return fmt.Sprintf("socket %d", d-XFRM_SOCKET_IN) +} + +// PolicyAction is an enum representing an ipsec policy action. +type PolicyAction uint8 + +const ( + XFRM_POLICY_ALLOW PolicyAction = 0 + XFRM_POLICY_BLOCK PolicyAction = 1 +) + +func (a PolicyAction) String() string { + switch a { + case XFRM_POLICY_ALLOW: + return "allow" + case XFRM_POLICY_BLOCK: + return "block" + default: + return fmt.Sprintf("action %d", a) + } +} + +// XfrmPolicyTmpl encapsulates a rule for the base addresses of an ipsec +// policy. These rules are matched with XfrmState to determine encryption +// and authentication algorithms. +type XfrmPolicyTmpl struct { + Dst net.IP + Src net.IP + Proto Proto + Mode Mode + Spi int + Reqid int + Optional int +} + +func (t XfrmPolicyTmpl) String() string { + return fmt.Sprintf("{Dst: %v, Src: %v, Proto: %s, Mode: %s, Spi: 0x%x, Reqid: 0x%x}", + t.Dst, t.Src, t.Proto, t.Mode, t.Spi, t.Reqid) +} + +// XfrmPolicy represents an ipsec policy. It represents the overlay network +// and has a list of XfrmPolicyTmpls representing the base addresses of +// the policy. +type XfrmPolicy struct { + Dst *net.IPNet + Src *net.IPNet + Proto Proto + DstPort int + SrcPort int + Dir Dir + Priority int + Index int + Action PolicyAction + Ifindex int + Ifid int + Mark *XfrmMark + Tmpls []XfrmPolicyTmpl +} + +func (p XfrmPolicy) String() string { + return fmt.Sprintf("{Dst: %v, Src: %v, Proto: %s, DstPort: %d, SrcPort: %d, Dir: %s, Priority: %d, Index: %d, Action: %s, Ifindex: %d, Ifid: %d, Mark: %s, Tmpls: %s}", + p.Dst, p.Src, p.Proto, p.DstPort, p.SrcPort, p.Dir, p.Priority, p.Index, p.Action, p.Ifindex, p.Ifid, p.Mark, p.Tmpls) +} + func selFromPolicy(sel *nl.XfrmSelector, policy *XfrmPolicy) { sel.Family = uint16(nl.FAMILY_V4) if policy.Dst != nil { @@ -75,10 +169,12 @@ func (h *Handle) xfrmPolicyAddOrUpdate(policy *XfrmPolicy, nlProto int) error { userTmpl := nl.DeserializeXfrmUserTmpl(tmplData[start : start+nl.SizeofXfrmUserTmpl]) userTmpl.XfrmId.Daddr.FromIP(tmpl.Dst) userTmpl.Saddr.FromIP(tmpl.Src) + userTmpl.Family = uint16(nl.GetIPFamily(tmpl.Dst)) userTmpl.XfrmId.Proto = uint8(tmpl.Proto) userTmpl.XfrmId.Spi = nl.Swap32(uint32(tmpl.Spi)) userTmpl.Mode = uint8(tmpl.Mode) userTmpl.Reqid = uint32(tmpl.Reqid) + userTmpl.Optional = uint8(tmpl.Optional) userTmpl.Aalgos = ^uint32(0) userTmpl.Ealgos = ^uint32(0) userTmpl.Calgos = ^uint32(0) @@ -92,8 +188,10 @@ func (h *Handle) xfrmPolicyAddOrUpdate(policy *XfrmPolicy, nlProto int) error { req.AddData(out) } - ifId := nl.NewRtAttr(nl.XFRMA_IF_ID, nl.Uint32Attr(uint32(policy.Ifid))) - req.AddData(ifId) + if policy.Ifid != 0 { + ifId := nl.NewRtAttr(nl.XFRMA_IF_ID, nl.Uint32Attr(uint32(policy.Ifid))) + req.AddData(ifId) + } _, err := req.Execute(unix.NETLINK_XFRM, 0) return err @@ -188,8 +286,10 @@ func (h *Handle) xfrmPolicyGetOrDelete(policy *XfrmPolicy, nlProto int) (*XfrmPo req.AddData(out) } - ifId := nl.NewRtAttr(nl.XFRMA_IF_ID, nl.Uint32Attr(uint32(policy.Ifid))) - req.AddData(ifId) + if policy.Ifid != 0 { + ifId := nl.NewRtAttr(nl.XFRMA_IF_ID, nl.Uint32Attr(uint32(policy.Ifid))) + req.AddData(ifId) + } resType := nl.XFRM_MSG_NEWPOLICY if nlProto == nl.XFRM_MSG_DELPOLICY { @@ -218,8 +318,8 @@ func parseXfrmPolicy(m []byte, family int) (*XfrmPolicy, error) { var policy XfrmPolicy - policy.Dst = msg.Sel.Daddr.ToIPNet(msg.Sel.PrefixlenD) - policy.Src = msg.Sel.Saddr.ToIPNet(msg.Sel.PrefixlenS) + policy.Dst = msg.Sel.Daddr.ToIPNet(msg.Sel.PrefixlenD, uint16(family)) + policy.Src = msg.Sel.Saddr.ToIPNet(msg.Sel.PrefixlenS, uint16(family)) policy.Proto = Proto(msg.Sel.Proto) policy.DstPort = int(nl.Swap16(msg.Sel.Dport)) policy.SrcPort = int(nl.Swap16(msg.Sel.Sport)) @@ -247,6 +347,7 @@ func parseXfrmPolicy(m []byte, family int) (*XfrmPolicy, error) { resTmpl.Mode = Mode(tmpl.Mode) resTmpl.Spi = int(nl.Swap32(tmpl.XfrmId.Spi)) resTmpl.Reqid = int(tmpl.Reqid) + resTmpl.Optional = int(tmpl.Optional) policy.Tmpls = append(policy.Tmpls, resTmpl) } case nl.XFRMA_MARK: diff --git a/vendor/github.com/vishvananda/netlink/xfrm_state.go b/vendor/github.com/vishvananda/netlink/xfrm_state.go deleted file mode 100644 index 483d8934a..000000000 --- a/vendor/github.com/vishvananda/netlink/xfrm_state.go +++ /dev/null @@ -1,131 +0,0 @@ -package netlink - -import ( - "fmt" - "net" - "time" -) - -// XfrmStateAlgo represents the algorithm to use for the ipsec encryption. -type XfrmStateAlgo struct { - Name string - Key []byte - TruncateLen int // Auth only - ICVLen int // AEAD only -} - -func (a XfrmStateAlgo) String() string { - base := fmt.Sprintf("{Name: %s, Key: 0x%x", a.Name, a.Key) - if a.TruncateLen != 0 { - base = fmt.Sprintf("%s, Truncate length: %d", base, a.TruncateLen) - } - if a.ICVLen != 0 { - base = fmt.Sprintf("%s, ICV length: %d", base, a.ICVLen) - } - return fmt.Sprintf("%s}", base) -} - -// EncapType is an enum representing the optional packet encapsulation. -type EncapType uint8 - -const ( - XFRM_ENCAP_ESPINUDP_NONIKE EncapType = iota + 1 - XFRM_ENCAP_ESPINUDP -) - -func (e EncapType) String() string { - switch e { - case XFRM_ENCAP_ESPINUDP_NONIKE: - return "espinudp-non-ike" - case XFRM_ENCAP_ESPINUDP: - return "espinudp" - } - return "unknown" -} - -// XfrmStateEncap represents the encapsulation to use for the ipsec encryption. -type XfrmStateEncap struct { - Type EncapType - SrcPort int - DstPort int - OriginalAddress net.IP -} - -func (e XfrmStateEncap) String() string { - return fmt.Sprintf("{Type: %s, Srcport: %d, DstPort: %d, OriginalAddress: %v}", - e.Type, e.SrcPort, e.DstPort, e.OriginalAddress) -} - -// XfrmStateLimits represents the configured limits for the state. -type XfrmStateLimits struct { - ByteSoft uint64 - ByteHard uint64 - PacketSoft uint64 - PacketHard uint64 - TimeSoft uint64 - TimeHard uint64 - TimeUseSoft uint64 - TimeUseHard uint64 -} - -// XfrmStateStats represents the current number of bytes/packets -// processed by this State, the State's installation and first use -// time and the replay window counters. -type XfrmStateStats struct { - ReplayWindow uint32 - Replay uint32 - Failed uint32 - Bytes uint64 - Packets uint64 - AddTime uint64 - UseTime uint64 -} - -// XfrmState represents the state of an ipsec policy. It optionally -// contains an XfrmStateAlgo for encryption and one for authentication. -type XfrmState struct { - Dst net.IP - Src net.IP - Proto Proto - Mode Mode - Spi int - Reqid int - ReplayWindow int - Limits XfrmStateLimits - Statistics XfrmStateStats - Mark *XfrmMark - OutputMark int - Ifid int - Auth *XfrmStateAlgo - Crypt *XfrmStateAlgo - Aead *XfrmStateAlgo - Encap *XfrmStateEncap - ESN bool -} - -func (sa XfrmState) String() string { - return fmt.Sprintf("Dst: %v, Src: %v, Proto: %s, Mode: %s, SPI: 0x%x, ReqID: 0x%x, ReplayWindow: %d, Mark: %v, OutputMark: %d, Ifid: %d, Auth: %v, Crypt: %v, Aead: %v, Encap: %v, ESN: %t", - sa.Dst, sa.Src, sa.Proto, sa.Mode, sa.Spi, sa.Reqid, sa.ReplayWindow, sa.Mark, sa.OutputMark, sa.Ifid, sa.Auth, sa.Crypt, sa.Aead, sa.Encap, sa.ESN) -} -func (sa XfrmState) Print(stats bool) string { - if !stats { - return sa.String() - } - at := time.Unix(int64(sa.Statistics.AddTime), 0).Format(time.UnixDate) - ut := "-" - if sa.Statistics.UseTime > 0 { - ut = time.Unix(int64(sa.Statistics.UseTime), 0).Format(time.UnixDate) - } - return fmt.Sprintf("%s, ByteSoft: %s, ByteHard: %s, PacketSoft: %s, PacketHard: %s, TimeSoft: %d, TimeHard: %d, TimeUseSoft: %d, TimeUseHard: %d, Bytes: %d, Packets: %d, "+ - "AddTime: %s, UseTime: %s, ReplayWindow: %d, Replay: %d, Failed: %d", - sa.String(), printLimit(sa.Limits.ByteSoft), printLimit(sa.Limits.ByteHard), printLimit(sa.Limits.PacketSoft), printLimit(sa.Limits.PacketHard), - sa.Limits.TimeSoft, sa.Limits.TimeHard, sa.Limits.TimeUseSoft, sa.Limits.TimeUseHard, sa.Statistics.Bytes, sa.Statistics.Packets, at, ut, - sa.Statistics.ReplayWindow, sa.Statistics.Replay, sa.Statistics.Failed) -} - -func printLimit(lmt uint64) string { - if lmt == ^uint64(0) { - return "(INF)" - } - return fmt.Sprintf("%d", lmt) -} diff --git a/vendor/github.com/vishvananda/netlink/xfrm_state_linux.go b/vendor/github.com/vishvananda/netlink/xfrm_state_linux.go index 66c99423c..554f2498c 100644 --- a/vendor/github.com/vishvananda/netlink/xfrm_state_linux.go +++ b/vendor/github.com/vishvananda/netlink/xfrm_state_linux.go @@ -2,12 +2,154 @@ package netlink import ( "fmt" + "net" + "time" "unsafe" "github.com/vishvananda/netlink/nl" "golang.org/x/sys/unix" ) +// XfrmStateAlgo represents the algorithm to use for the ipsec encryption. +type XfrmStateAlgo struct { + Name string + Key []byte + TruncateLen int // Auth only + ICVLen int // AEAD only +} + +func (a XfrmStateAlgo) String() string { + base := fmt.Sprintf("{Name: %s, Key: 0x%x", a.Name, a.Key) + if a.TruncateLen != 0 { + base = fmt.Sprintf("%s, Truncate length: %d", base, a.TruncateLen) + } + if a.ICVLen != 0 { + base = fmt.Sprintf("%s, ICV length: %d", base, a.ICVLen) + } + return fmt.Sprintf("%s}", base) +} + +// EncapType is an enum representing the optional packet encapsulation. +type EncapType uint8 + +const ( + XFRM_ENCAP_ESPINUDP_NONIKE EncapType = iota + 1 + XFRM_ENCAP_ESPINUDP +) + +func (e EncapType) String() string { + switch e { + case XFRM_ENCAP_ESPINUDP_NONIKE: + return "espinudp-non-ike" + case XFRM_ENCAP_ESPINUDP: + return "espinudp" + } + return "unknown" +} + +// XfrmStateEncap represents the encapsulation to use for the ipsec encryption. +type XfrmStateEncap struct { + Type EncapType + SrcPort int + DstPort int + OriginalAddress net.IP +} + +func (e XfrmStateEncap) String() string { + return fmt.Sprintf("{Type: %s, Srcport: %d, DstPort: %d, OriginalAddress: %v}", + e.Type, e.SrcPort, e.DstPort, e.OriginalAddress) +} + +// XfrmStateLimits represents the configured limits for the state. +type XfrmStateLimits struct { + ByteSoft uint64 + ByteHard uint64 + PacketSoft uint64 + PacketHard uint64 + TimeSoft uint64 + TimeHard uint64 + TimeUseSoft uint64 + TimeUseHard uint64 +} + +// XfrmStateStats represents the current number of bytes/packets +// processed by this State, the State's installation and first use +// time and the replay window counters. +type XfrmStateStats struct { + ReplayWindow uint32 + Replay uint32 + Failed uint32 + Bytes uint64 + Packets uint64 + AddTime uint64 + UseTime uint64 +} + +// XfrmReplayState represents the sequence number states for +// "legacy" anti-replay mode. +type XfrmReplayState struct { + OSeq uint32 + Seq uint32 + BitMap uint32 +} + +func (r XfrmReplayState) String() string { + return fmt.Sprintf("{OSeq: 0x%x, Seq: 0x%x, BitMap: 0x%x}", + r.OSeq, r.Seq, r.BitMap) +} + +// XfrmState represents the state of an ipsec policy. It optionally +// contains an XfrmStateAlgo for encryption and one for authentication. +type XfrmState struct { + Dst net.IP + Src net.IP + Proto Proto + Mode Mode + Spi int + Reqid int + ReplayWindow int + Limits XfrmStateLimits + Statistics XfrmStateStats + Mark *XfrmMark + OutputMark *XfrmMark + Ifid int + Auth *XfrmStateAlgo + Crypt *XfrmStateAlgo + Aead *XfrmStateAlgo + Encap *XfrmStateEncap + ESN bool + DontEncapDSCP bool + OSeqMayWrap bool + Replay *XfrmReplayState + Selector *XfrmPolicy +} + +func (sa XfrmState) String() string { + return fmt.Sprintf("Dst: %v, Src: %v, Proto: %s, Mode: %s, SPI: 0x%x, ReqID: 0x%x, ReplayWindow: %d, Mark: %v, OutputMark: %v, Ifid: %d, Auth: %v, Crypt: %v, Aead: %v, Encap: %v, ESN: %t, DontEncapDSCP: %t, OSeqMayWrap: %t, Replay: %v", + sa.Dst, sa.Src, sa.Proto, sa.Mode, sa.Spi, sa.Reqid, sa.ReplayWindow, sa.Mark, sa.OutputMark, sa.Ifid, sa.Auth, sa.Crypt, sa.Aead, sa.Encap, sa.ESN, sa.DontEncapDSCP, sa.OSeqMayWrap, sa.Replay) +} +func (sa XfrmState) Print(stats bool) string { + if !stats { + return sa.String() + } + at := time.Unix(int64(sa.Statistics.AddTime), 0).Format(time.UnixDate) + ut := "-" + if sa.Statistics.UseTime > 0 { + ut = time.Unix(int64(sa.Statistics.UseTime), 0).Format(time.UnixDate) + } + return fmt.Sprintf("%s, ByteSoft: %s, ByteHard: %s, PacketSoft: %s, PacketHard: %s, TimeSoft: %d, TimeHard: %d, TimeUseSoft: %d, TimeUseHard: %d, Bytes: %d, Packets: %d, "+ + "AddTime: %s, UseTime: %s, ReplayWindow: %d, Replay: %d, Failed: %d", + sa.String(), printLimit(sa.Limits.ByteSoft), printLimit(sa.Limits.ByteHard), printLimit(sa.Limits.PacketSoft), printLimit(sa.Limits.PacketHard), + sa.Limits.TimeSoft, sa.Limits.TimeHard, sa.Limits.TimeUseSoft, sa.Limits.TimeUseHard, sa.Statistics.Bytes, sa.Statistics.Packets, at, ut, + sa.Statistics.ReplayWindow, sa.Statistics.Replay, sa.Statistics.Failed) +} + +func printLimit(lmt uint64) string { + if lmt == ^uint64(0) { + return "(INF)" + } + return fmt.Sprintf("%d", lmt) +} func writeStateAlgo(a *XfrmStateAlgo) []byte { algo := nl.XfrmAlgo{ AlgKeyLen: uint32(len(a.Key) * 8), @@ -77,6 +219,14 @@ func writeReplayEsn(replayWindow int) []byte { return replayEsn.Serialize() } +func writeReplay(r *XfrmReplayState) []byte { + return (&nl.XfrmReplayState{ + OSeq: r.OSeq, + Seq: r.Seq, + BitMap: r.BitMap, + }).Serialize() +} + // XfrmStateAdd will add an xfrm state to the system. // Equivalent to: `ip xfrm state add $state` func XfrmStateAdd(state *XfrmState) error { @@ -111,7 +261,7 @@ func (h *Handle) xfrmStateAddOrUpdate(state *XfrmState, nlProto int) error { // A state with spi 0 can't be deleted so don't allow it to be set if state.Spi == 0 { - return fmt.Errorf("Spi must be set when adding xfrm state.") + return fmt.Errorf("Spi must be set when adding xfrm state") } req := h.newNetlinkRequest(nlProto, unix.NLM_F_CREATE|unix.NLM_F_EXCL|unix.NLM_F_ACK) @@ -158,13 +308,34 @@ func (h *Handle) xfrmStateAddOrUpdate(state *XfrmState, nlProto int) error { out := nl.NewRtAttr(nl.XFRMA_REPLAY_ESN_VAL, writeReplayEsn(state.ReplayWindow)) req.AddData(out) } - if state.OutputMark != 0 { - out := nl.NewRtAttr(nl.XFRMA_OUTPUT_MARK, nl.Uint32Attr(uint32(state.OutputMark))) + if state.OutputMark != nil { + out := nl.NewRtAttr(nl.XFRMA_SET_MARK, nl.Uint32Attr(state.OutputMark.Value)) + req.AddData(out) + if state.OutputMark.Mask != 0 { + out = nl.NewRtAttr(nl.XFRMA_SET_MARK_MASK, nl.Uint32Attr(state.OutputMark.Mask)) + req.AddData(out) + } + } + if state.OSeqMayWrap || state.DontEncapDSCP { + var flags uint32 + if state.DontEncapDSCP { + flags |= nl.XFRM_SA_XFLAG_DONT_ENCAP_DSCP + } + if state.OSeqMayWrap { + flags |= nl.XFRM_SA_XFLAG_OSEQ_MAY_WRAP + } + out := nl.NewRtAttr(nl.XFRMA_SA_EXTRA_FLAGS, nl.Uint32Attr(flags)) + req.AddData(out) + } + if state.Replay != nil { + out := nl.NewRtAttr(nl.XFRMA_REPLAY_VAL, writeReplay(state.Replay)) req.AddData(out) } - ifId := nl.NewRtAttr(nl.XFRMA_IF_ID, nl.Uint32Attr(uint32(state.Ifid))) - req.AddData(ifId) + if state.Ifid != 0 { + ifId := nl.NewRtAttr(nl.XFRMA_IF_ID, nl.Uint32Attr(uint32(state.Ifid))) + req.AddData(ifId) + } _, err := req.Execute(unix.NETLINK_XFRM, 0) return err @@ -180,7 +351,6 @@ func (h *Handle) xfrmStateAllocSpi(state *XfrmState) (*XfrmState, error) { msg.Min = 0x100 msg.Max = 0xffffffff req.AddData(msg) - if state.Mark != nil { out := nl.NewRtAttr(nl.XFRMA_MARK, writeMark(state.Mark)) req.AddData(out) @@ -277,8 +447,10 @@ func (h *Handle) xfrmStateGetOrDelete(state *XfrmState, nlProto int) (*XfrmState req.AddData(out) } - ifId := nl.NewRtAttr(nl.XFRMA_IF_ID, nl.Uint32Attr(uint32(state.Ifid))) - req.AddData(ifId) + if state.Ifid != 0 { + ifId := nl.NewRtAttr(nl.XFRMA_IF_ID, nl.Uint32Attr(uint32(state.Ifid))) + req.AddData(ifId) + } resType := nl.XFRM_MSG_NEWSA if nlProto == nl.XFRM_MSG_DELSA { @@ -306,7 +478,6 @@ var familyError = fmt.Errorf("family error") func xfrmStateFromXfrmUsersaInfo(msg *nl.XfrmUsersaInfo) *XfrmState { var state XfrmState - state.Dst = msg.Id.Daddr.ToIP() state.Src = msg.Saddr.ToIP() state.Proto = Proto(msg.Id.Proto) @@ -316,20 +487,25 @@ func xfrmStateFromXfrmUsersaInfo(msg *nl.XfrmUsersaInfo) *XfrmState { state.ReplayWindow = int(msg.ReplayWindow) lftToLimits(&msg.Lft, &state.Limits) curToStats(&msg.Curlft, &msg.Stats, &state.Statistics) + state.Selector = &XfrmPolicy{ + Dst: msg.Sel.Daddr.ToIPNet(msg.Sel.PrefixlenD, msg.Sel.Family), + Src: msg.Sel.Saddr.ToIPNet(msg.Sel.PrefixlenS, msg.Sel.Family), + Proto: Proto(msg.Sel.Proto), + DstPort: int(nl.Swap16(msg.Sel.Dport)), + SrcPort: int(nl.Swap16(msg.Sel.Sport)), + Ifindex: int(msg.Sel.Ifindex), + } return &state } func parseXfrmState(m []byte, family int) (*XfrmState, error) { msg := nl.DeserializeXfrmUsersaInfo(m) - // This is mainly for the state dump if family != FAMILY_ALL && family != int(msg.Family) { return nil, familyError } - state := xfrmStateFromXfrmUsersaInfo(msg) - attrs, err := nl.ParseRouteAttr(m[nl.SizeofXfrmUsersaInfo:]) if err != nil { return nil, err @@ -377,10 +553,37 @@ func parseXfrmState(m []byte, family int) (*XfrmState, error) { state.Mark = new(XfrmMark) state.Mark.Value = mark.Value state.Mark.Mask = mark.Mask - case nl.XFRMA_OUTPUT_MARK: - state.OutputMark = int(native.Uint32(attr.Value)) + case nl.XFRMA_SA_EXTRA_FLAGS: + flags := native.Uint32(attr.Value) + if (flags & nl.XFRM_SA_XFLAG_DONT_ENCAP_DSCP) != 0 { + state.DontEncapDSCP = true + } + if (flags & nl.XFRM_SA_XFLAG_OSEQ_MAY_WRAP) != 0 { + state.OSeqMayWrap = true + } + case nl.XFRMA_SET_MARK: + if state.OutputMark == nil { + state.OutputMark = new(XfrmMark) + } + state.OutputMark.Value = native.Uint32(attr.Value) + case nl.XFRMA_SET_MARK_MASK: + if state.OutputMark == nil { + state.OutputMark = new(XfrmMark) + } + state.OutputMark.Mask = native.Uint32(attr.Value) + if state.OutputMark.Mask == 0xffffffff { + state.OutputMark.Mask = 0 + } case nl.XFRMA_IF_ID: state.Ifid = int(native.Uint32(attr.Value)) + case nl.XFRMA_REPLAY_VAL: + if state.Replay == nil { + state.Replay = new(XfrmReplayState) + } + replay := nl.DeserializeXfrmReplayState(attr.Value[:]) + state.Replay.OSeq = replay.OSeq + state.Replay.Seq = replay.Seq + state.Replay.BitMap = replay.BitMap } } @@ -457,6 +660,9 @@ func xfrmUsersaInfoFromXfrmState(state *XfrmState) *nl.XfrmUsersaInfo { msg.Id.Spi = nl.Swap32(uint32(state.Spi)) msg.Reqid = uint32(state.Reqid) msg.ReplayWindow = uint8(state.ReplayWindow) - + msg.Sel = nl.XfrmSelector{} + if state.Selector != nil { + selFromPolicy(&msg.Sel, state.Selector) + } return msg } diff --git a/vendor/github.com/vishvananda/netlink/xfrm_unspecified.go b/vendor/github.com/vishvananda/netlink/xfrm_unspecified.go new file mode 100644 index 000000000..12fdd26d7 --- /dev/null +++ b/vendor/github.com/vishvananda/netlink/xfrm_unspecified.go @@ -0,0 +1,7 @@ +//go:build !linux +// +build !linux + +package netlink + +type XfrmPolicy struct{} +type XfrmState struct{} diff --git a/vendor/golang.org/x/exp/slices/slices.go b/vendor/golang.org/x/exp/slices/slices.go index 5e8158bba..46ceac343 100644 --- a/vendor/golang.org/x/exp/slices/slices.go +++ b/vendor/golang.org/x/exp/slices/slices.go @@ -209,25 +209,37 @@ func Insert[S ~[]E, E any](s S, i int, v ...E) S { return s } +// clearSlice sets all elements up to the length of s to the zero value of E. +// We may use the builtin clear func instead, and remove clearSlice, when upgrading +// to Go 1.21+. +func clearSlice[S ~[]E, E any](s S) { + var zero E + for i := range s { + s[i] = zero + } +} + // Delete removes the elements s[i:j] from s, returning the modified slice. -// Delete panics if s[i:j] is not a valid slice of s. -// Delete is O(len(s)-j), so if many items must be deleted, it is better to +// Delete panics if j > len(s) or s[i:j] is not a valid slice of s. +// Delete is O(len(s)-i), so if many items must be deleted, it is better to // make a single call deleting them all together than to delete one at a time. -// Delete might not modify the elements s[len(s)-(j-i):len(s)]. If those -// elements contain pointers you might consider zeroing those elements so that -// objects they reference can be garbage collected. +// Delete zeroes the elements s[len(s)-(j-i):len(s)]. func Delete[S ~[]E, E any](s S, i, j int) S { - _ = s[i:j] // bounds check + _ = s[i:j:len(s)] // bounds check - return append(s[:i], s[j:]...) + if i == j { + return s + } + + oldlen := len(s) + s = append(s[:i], s[j:]...) + clearSlice(s[len(s):oldlen]) // zero/nil out the obsolete elements, for GC + return s } // DeleteFunc removes any elements from s for which del returns true, // returning the modified slice. -// When DeleteFunc removes m elements, it might not modify the elements -// s[len(s)-m:len(s)]. If those elements contain pointers you might consider -// zeroing those elements so that objects they reference can be garbage -// collected. +// DeleteFunc zeroes the elements between the new length and the original length. func DeleteFunc[S ~[]E, E any](s S, del func(E) bool) S { i := IndexFunc(s, del) if i == -1 { @@ -240,11 +252,13 @@ func DeleteFunc[S ~[]E, E any](s S, del func(E) bool) S { i++ } } + clearSlice(s[i:]) // zero/nil out the obsolete elements, for GC return s[:i] } // Replace replaces the elements s[i:j] by the given v, and returns the // modified slice. Replace panics if s[i:j] is not a valid slice of s. +// When len(v) < (j-i), Replace zeroes the elements between the new length and the original length. func Replace[S ~[]E, E any](s S, i, j int, v ...E) S { _ = s[i:j] // verify that i:j is a valid subslice @@ -272,6 +286,7 @@ func Replace[S ~[]E, E any](s S, i, j int, v ...E) S { if i+len(v) != j { copy(r[i+len(v):], s[j:]) } + clearSlice(s[tot:]) // zero/nil out the obsolete elements, for GC return r } @@ -345,9 +360,7 @@ func Clone[S ~[]E, E any](s S) S { // This is like the uniq command found on Unix. // Compact modifies the contents of the slice s and returns the modified slice, // which may have a smaller length. -// When Compact discards m elements in total, it might not modify the elements -// s[len(s)-m:len(s)]. If those elements contain pointers you might consider -// zeroing those elements so that objects they reference can be garbage collected. +// Compact zeroes the elements between the new length and the original length. func Compact[S ~[]E, E comparable](s S) S { if len(s) < 2 { return s @@ -361,11 +374,13 @@ func Compact[S ~[]E, E comparable](s S) S { i++ } } + clearSlice(s[i:]) // zero/nil out the obsolete elements, for GC return s[:i] } // CompactFunc is like [Compact] but uses an equality function to compare elements. // For runs of elements that compare equal, CompactFunc keeps the first one. +// CompactFunc zeroes the elements between the new length and the original length. func CompactFunc[S ~[]E, E any](s S, eq func(E, E) bool) S { if len(s) < 2 { return s @@ -379,6 +394,7 @@ func CompactFunc[S ~[]E, E any](s S, eq func(E, E) bool) S { i++ } } + clearSlice(s[i:]) // zero/nil out the obsolete elements, for GC return s[:i] } diff --git a/vendor/golang.org/x/exp/slog/handler.go b/vendor/golang.org/x/exp/slog/handler.go index 74f88738c..bd635cb81 100644 --- a/vendor/golang.org/x/exp/slog/handler.go +++ b/vendor/golang.org/x/exp/slog/handler.go @@ -8,6 +8,7 @@ import ( "context" "fmt" "io" + "reflect" "strconv" "sync" "time" @@ -504,6 +505,23 @@ func (s *handleState) appendString(str string) { } func (s *handleState) appendValue(v Value) { + defer func() { + if r := recover(); r != nil { + // If it panics with a nil pointer, the most likely cases are + // an encoding.TextMarshaler or error fails to guard against nil, + // in which case "" seems to be the feasible choice. + // + // Adapted from the code in fmt/print.go. + if v := reflect.ValueOf(v.any); v.Kind() == reflect.Pointer && v.IsNil() { + s.appendString("") + return + } + + // Otherwise just print the original panic message. + s.appendString(fmt.Sprintf("!PANIC: %v", r)) + } + }() + var err error if s.h.json { err = appendJSONValue(s, v) diff --git a/vendor/golang.org/x/sys/cpu/cpu.go b/vendor/golang.org/x/sys/cpu/cpu.go index ec07aab05..02609d5b2 100644 --- a/vendor/golang.org/x/sys/cpu/cpu.go +++ b/vendor/golang.org/x/sys/cpu/cpu.go @@ -201,6 +201,25 @@ var S390X struct { _ CacheLinePad } +// RISCV64 contains the supported CPU features and performance characteristics for riscv64 +// platforms. The booleans in RISCV64, with the exception of HasFastMisaligned, indicate +// the presence of RISC-V extensions. +// +// It is safe to assume that all the RV64G extensions are supported and so they are omitted from +// this structure. As riscv64 Go programs require at least RV64G, the code that populates +// this structure cannot run successfully if some of the RV64G extensions are missing. +// The struct is padded to avoid false sharing. +var RISCV64 struct { + _ CacheLinePad + HasFastMisaligned bool // Fast misaligned accesses + HasC bool // Compressed instruction-set extension + HasV bool // Vector extension compatible with RVV 1.0 + HasZba bool // Address generation instructions extension + HasZbb bool // Basic bit-manipulation extension + HasZbs bool // Single-bit instructions extension + _ CacheLinePad +} + func init() { archInit() initOptions() diff --git a/vendor/golang.org/x/sys/cpu/cpu_linux_noinit.go b/vendor/golang.org/x/sys/cpu/cpu_linux_noinit.go index cd63e7335..7d902b684 100644 --- a/vendor/golang.org/x/sys/cpu/cpu_linux_noinit.go +++ b/vendor/golang.org/x/sys/cpu/cpu_linux_noinit.go @@ -2,7 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -//go:build linux && !arm && !arm64 && !mips64 && !mips64le && !ppc64 && !ppc64le && !s390x +//go:build linux && !arm && !arm64 && !mips64 && !mips64le && !ppc64 && !ppc64le && !s390x && !riscv64 package cpu diff --git a/vendor/golang.org/x/sys/cpu/cpu_linux_riscv64.go b/vendor/golang.org/x/sys/cpu/cpu_linux_riscv64.go new file mode 100644 index 000000000..cb4a0c572 --- /dev/null +++ b/vendor/golang.org/x/sys/cpu/cpu_linux_riscv64.go @@ -0,0 +1,137 @@ +// Copyright 2024 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package cpu + +import ( + "syscall" + "unsafe" +) + +// RISC-V extension discovery code for Linux. The approach here is to first try the riscv_hwprobe +// syscall falling back to HWCAP to check for the C extension if riscv_hwprobe is not available. +// +// A note on detection of the Vector extension using HWCAP. +// +// Support for the Vector extension version 1.0 was added to the Linux kernel in release 6.5. +// Support for the riscv_hwprobe syscall was added in 6.4. It follows that if the riscv_hwprobe +// syscall is not available then neither is the Vector extension (which needs kernel support). +// The riscv_hwprobe syscall should then be all we need to detect the Vector extension. +// However, some RISC-V board manufacturers ship boards with an older kernel on top of which +// they have back-ported various versions of the Vector extension patches but not the riscv_hwprobe +// patches. These kernels advertise support for the Vector extension using HWCAP. Falling +// back to HWCAP to detect the Vector extension, if riscv_hwprobe is not available, or simply not +// bothering with riscv_hwprobe at all and just using HWCAP may then seem like an attractive option. +// +// Unfortunately, simply checking the 'V' bit in AT_HWCAP will not work as this bit is used by +// RISC-V board and cloud instance providers to mean different things. The Lichee Pi 4A board +// and the Scaleway RV1 cloud instances use the 'V' bit to advertise their support for the unratified +// 0.7.1 version of the Vector Specification. The Banana Pi BPI-F3 and the CanMV-K230 board use +// it to advertise support for 1.0 of the Vector extension. Versions 0.7.1 and 1.0 of the Vector +// extension are binary incompatible. HWCAP can then not be used in isolation to populate the +// HasV field as this field indicates that the underlying CPU is compatible with RVV 1.0. +// +// There is a way at runtime to distinguish between versions 0.7.1 and 1.0 of the Vector +// specification by issuing a RVV 1.0 vsetvli instruction and checking the vill bit of the vtype +// register. This check would allow us to safely detect version 1.0 of the Vector extension +// with HWCAP, if riscv_hwprobe were not available. However, the check cannot +// be added until the assembler supports the Vector instructions. +// +// Note the riscv_hwprobe syscall does not suffer from these ambiguities by design as all of the +// extensions it advertises support for are explicitly versioned. It's also worth noting that +// the riscv_hwprobe syscall is the only way to detect multi-letter RISC-V extensions, e.g., Zba. +// These cannot be detected using HWCAP and so riscv_hwprobe must be used to detect the majority +// of RISC-V extensions. +// +// Please see https://docs.kernel.org/arch/riscv/hwprobe.html for more information. + +// golang.org/x/sys/cpu is not allowed to depend on golang.org/x/sys/unix so we must +// reproduce the constants, types and functions needed to make the riscv_hwprobe syscall +// here. + +const ( + // Copied from golang.org/x/sys/unix/ztypes_linux_riscv64.go. + riscv_HWPROBE_KEY_IMA_EXT_0 = 0x4 + riscv_HWPROBE_IMA_C = 0x2 + riscv_HWPROBE_IMA_V = 0x4 + riscv_HWPROBE_EXT_ZBA = 0x8 + riscv_HWPROBE_EXT_ZBB = 0x10 + riscv_HWPROBE_EXT_ZBS = 0x20 + riscv_HWPROBE_KEY_CPUPERF_0 = 0x5 + riscv_HWPROBE_MISALIGNED_FAST = 0x3 + riscv_HWPROBE_MISALIGNED_MASK = 0x7 +) + +const ( + // sys_RISCV_HWPROBE is copied from golang.org/x/sys/unix/zsysnum_linux_riscv64.go. + sys_RISCV_HWPROBE = 258 +) + +// riscvHWProbePairs is copied from golang.org/x/sys/unix/ztypes_linux_riscv64.go. +type riscvHWProbePairs struct { + key int64 + value uint64 +} + +const ( + // CPU features + hwcap_RISCV_ISA_C = 1 << ('C' - 'A') +) + +func doinit() { + // A slice of key/value pair structures is passed to the RISCVHWProbe syscall. The key + // field should be initialised with one of the key constants defined above, e.g., + // RISCV_HWPROBE_KEY_IMA_EXT_0. The syscall will set the value field to the appropriate value. + // If the kernel does not recognise a key it will set the key field to -1 and the value field to 0. + + pairs := []riscvHWProbePairs{ + {riscv_HWPROBE_KEY_IMA_EXT_0, 0}, + {riscv_HWPROBE_KEY_CPUPERF_0, 0}, + } + + // This call only indicates that extensions are supported if they are implemented on all cores. + if riscvHWProbe(pairs, 0) { + if pairs[0].key != -1 { + v := uint(pairs[0].value) + RISCV64.HasC = isSet(v, riscv_HWPROBE_IMA_C) + RISCV64.HasV = isSet(v, riscv_HWPROBE_IMA_V) + RISCV64.HasZba = isSet(v, riscv_HWPROBE_EXT_ZBA) + RISCV64.HasZbb = isSet(v, riscv_HWPROBE_EXT_ZBB) + RISCV64.HasZbs = isSet(v, riscv_HWPROBE_EXT_ZBS) + } + if pairs[1].key != -1 { + v := pairs[1].value & riscv_HWPROBE_MISALIGNED_MASK + RISCV64.HasFastMisaligned = v == riscv_HWPROBE_MISALIGNED_FAST + } + } + + // Let's double check with HWCAP if the C extension does not appear to be supported. + // This may happen if we're running on a kernel older than 6.4. + + if !RISCV64.HasC { + RISCV64.HasC = isSet(hwCap, hwcap_RISCV_ISA_C) + } +} + +func isSet(hwc uint, value uint) bool { + return hwc&value != 0 +} + +// riscvHWProbe is a simplified version of the generated wrapper function found in +// golang.org/x/sys/unix/zsyscall_linux_riscv64.go. We simplify it by removing the +// cpuCount and cpus parameters which we do not need. We always want to pass 0 for +// these parameters here so the kernel only reports the extensions that are present +// on all cores. +func riscvHWProbe(pairs []riscvHWProbePairs, flags uint) bool { + var _zero uintptr + var p0 unsafe.Pointer + if len(pairs) > 0 { + p0 = unsafe.Pointer(&pairs[0]) + } else { + p0 = unsafe.Pointer(&_zero) + } + + _, _, e1 := syscall.Syscall6(sys_RISCV_HWPROBE, uintptr(p0), uintptr(len(pairs)), uintptr(0), uintptr(0), uintptr(flags), 0) + return e1 == 0 +} diff --git a/vendor/golang.org/x/sys/cpu/cpu_riscv64.go b/vendor/golang.org/x/sys/cpu/cpu_riscv64.go index 7f0c79c00..aca3199c9 100644 --- a/vendor/golang.org/x/sys/cpu/cpu_riscv64.go +++ b/vendor/golang.org/x/sys/cpu/cpu_riscv64.go @@ -8,4 +8,13 @@ package cpu const cacheLineSize = 64 -func initOptions() {} +func initOptions() { + options = []option{ + {Name: "fastmisaligned", Feature: &RISCV64.HasFastMisaligned}, + {Name: "c", Feature: &RISCV64.HasC}, + {Name: "v", Feature: &RISCV64.HasV}, + {Name: "zba", Feature: &RISCV64.HasZba}, + {Name: "zbb", Feature: &RISCV64.HasZbb}, + {Name: "zbs", Feature: &RISCV64.HasZbs}, + } +} diff --git a/vendor/golang.org/x/sys/unix/mkerrors.sh b/vendor/golang.org/x/sys/unix/mkerrors.sh index d07dd09eb..e14b766a3 100644 --- a/vendor/golang.org/x/sys/unix/mkerrors.sh +++ b/vendor/golang.org/x/sys/unix/mkerrors.sh @@ -552,6 +552,7 @@ ccflags="$@" $2 !~ /^RTC_VL_(ACCURACY|BACKUP|DATA)/ && $2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTC|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P|NETNSA)_/ || $2 ~ /^SOCK_|SK_DIAG_|SKNLGRP_$/ || + $2 ~ /^(CONNECT|SAE)_/ || $2 ~ /^FIORDCHK$/ || $2 ~ /^SIOC/ || $2 ~ /^TIOC/ || diff --git a/vendor/golang.org/x/sys/unix/syscall_darwin.go b/vendor/golang.org/x/sys/unix/syscall_darwin.go index 2d15200ad..099867dee 100644 --- a/vendor/golang.org/x/sys/unix/syscall_darwin.go +++ b/vendor/golang.org/x/sys/unix/syscall_darwin.go @@ -566,6 +566,43 @@ func PthreadFchdir(fd int) (err error) { return pthread_fchdir_np(fd) } +// Connectx calls connectx(2) to initiate a connection on a socket. +// +// srcIf, srcAddr, and dstAddr are filled into a [SaEndpoints] struct and passed as the endpoints argument. +// +// - srcIf is the optional source interface index. 0 means unspecified. +// - srcAddr is the optional source address. nil means unspecified. +// - dstAddr is the destination address. +// +// On success, Connectx returns the number of bytes enqueued for transmission. +func Connectx(fd int, srcIf uint32, srcAddr, dstAddr Sockaddr, associd SaeAssocID, flags uint32, iov []Iovec, connid *SaeConnID) (n uintptr, err error) { + endpoints := SaEndpoints{ + Srcif: srcIf, + } + + if srcAddr != nil { + addrp, addrlen, err := srcAddr.sockaddr() + if err != nil { + return 0, err + } + endpoints.Srcaddr = (*RawSockaddr)(addrp) + endpoints.Srcaddrlen = uint32(addrlen) + } + + if dstAddr != nil { + addrp, addrlen, err := dstAddr.sockaddr() + if err != nil { + return 0, err + } + endpoints.Dstaddr = (*RawSockaddr)(addrp) + endpoints.Dstaddrlen = uint32(addrlen) + } + + err = connectx(fd, &endpoints, associd, flags, iov, &n, connid) + return +} + +//sys connectx(fd int, endpoints *SaEndpoints, associd SaeAssocID, flags uint32, iov []Iovec, n *uintptr, connid *SaeConnID) (err error) //sys sendfile(infd int, outfd int, offset int64, len *int64, hdtr unsafe.Pointer, flags int) (err error) //sys shmat(id int, addr uintptr, flag int) (ret uintptr, err error) diff --git a/vendor/golang.org/x/sys/unix/syscall_hurd.go b/vendor/golang.org/x/sys/unix/syscall_hurd.go index ba46651f8..a6a2d2fc2 100644 --- a/vendor/golang.org/x/sys/unix/syscall_hurd.go +++ b/vendor/golang.org/x/sys/unix/syscall_hurd.go @@ -11,6 +11,7 @@ package unix int ioctl(int, unsigned long int, uintptr_t); */ import "C" +import "unsafe" func ioctl(fd int, req uint, arg uintptr) (err error) { r0, er := C.ioctl(C.int(fd), C.ulong(req), C.uintptr_t(arg)) diff --git a/vendor/golang.org/x/sys/unix/zerrors_darwin_amd64.go b/vendor/golang.org/x/sys/unix/zerrors_darwin_amd64.go index 4308ac177..d73c4652e 100644 --- a/vendor/golang.org/x/sys/unix/zerrors_darwin_amd64.go +++ b/vendor/golang.org/x/sys/unix/zerrors_darwin_amd64.go @@ -237,6 +237,9 @@ const ( CLOCK_UPTIME_RAW_APPROX = 0x9 CLONE_NOFOLLOW = 0x1 CLONE_NOOWNERCOPY = 0x2 + CONNECT_DATA_AUTHENTICATED = 0x4 + CONNECT_DATA_IDEMPOTENT = 0x2 + CONNECT_RESUME_ON_READ_WRITE = 0x1 CR0 = 0x0 CR1 = 0x1000 CR2 = 0x2000 @@ -1265,6 +1268,10 @@ const ( RTV_SSTHRESH = 0x20 RUSAGE_CHILDREN = -0x1 RUSAGE_SELF = 0x0 + SAE_ASSOCID_ALL = 0xffffffff + SAE_ASSOCID_ANY = 0x0 + SAE_CONNID_ALL = 0xffffffff + SAE_CONNID_ANY = 0x0 SCM_CREDS = 0x3 SCM_RIGHTS = 0x1 SCM_TIMESTAMP = 0x2 diff --git a/vendor/golang.org/x/sys/unix/zerrors_darwin_arm64.go b/vendor/golang.org/x/sys/unix/zerrors_darwin_arm64.go index c8068a7a1..4a55a4005 100644 --- a/vendor/golang.org/x/sys/unix/zerrors_darwin_arm64.go +++ b/vendor/golang.org/x/sys/unix/zerrors_darwin_arm64.go @@ -237,6 +237,9 @@ const ( CLOCK_UPTIME_RAW_APPROX = 0x9 CLONE_NOFOLLOW = 0x1 CLONE_NOOWNERCOPY = 0x2 + CONNECT_DATA_AUTHENTICATED = 0x4 + CONNECT_DATA_IDEMPOTENT = 0x2 + CONNECT_RESUME_ON_READ_WRITE = 0x1 CR0 = 0x0 CR1 = 0x1000 CR2 = 0x2000 @@ -1265,6 +1268,10 @@ const ( RTV_SSTHRESH = 0x20 RUSAGE_CHILDREN = -0x1 RUSAGE_SELF = 0x0 + SAE_ASSOCID_ALL = 0xffffffff + SAE_ASSOCID_ANY = 0x0 + SAE_CONNID_ALL = 0xffffffff + SAE_CONNID_ANY = 0x0 SCM_CREDS = 0x3 SCM_RIGHTS = 0x1 SCM_TIMESTAMP = 0x2 diff --git a/vendor/golang.org/x/sys/unix/zerrors_zos_s390x.go b/vendor/golang.org/x/sys/unix/zerrors_zos_s390x.go index da08b2ab3..1ec2b1407 100644 --- a/vendor/golang.org/x/sys/unix/zerrors_zos_s390x.go +++ b/vendor/golang.org/x/sys/unix/zerrors_zos_s390x.go @@ -581,6 +581,8 @@ const ( AT_EMPTY_PATH = 0x1000 AT_REMOVEDIR = 0x200 RENAME_NOREPLACE = 1 << 0 + ST_RDONLY = 1 + ST_NOSUID = 2 ) const ( diff --git a/vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.go b/vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.go index b622533ef..24b346e1a 100644 --- a/vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.go +++ b/vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.go @@ -841,6 +841,26 @@ var libc_pthread_fchdir_np_trampoline_addr uintptr // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT +func connectx(fd int, endpoints *SaEndpoints, associd SaeAssocID, flags uint32, iov []Iovec, n *uintptr, connid *SaeConnID) (err error) { + var _p0 unsafe.Pointer + if len(iov) > 0 { + _p0 = unsafe.Pointer(&iov[0]) + } else { + _p0 = unsafe.Pointer(&_zero) + } + _, _, e1 := syscall_syscall9(libc_connectx_trampoline_addr, uintptr(fd), uintptr(unsafe.Pointer(endpoints)), uintptr(associd), uintptr(flags), uintptr(_p0), uintptr(len(iov)), uintptr(unsafe.Pointer(n)), uintptr(unsafe.Pointer(connid)), 0) + if e1 != 0 { + err = errnoErr(e1) + } + return +} + +var libc_connectx_trampoline_addr uintptr + +//go:cgo_import_dynamic libc_connectx connectx "/usr/lib/libSystem.B.dylib" + +// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT + func sendfile(infd int, outfd int, offset int64, len *int64, hdtr unsafe.Pointer, flags int) (err error) { _, _, e1 := syscall_syscall6(libc_sendfile_trampoline_addr, uintptr(infd), uintptr(outfd), uintptr(offset), uintptr(unsafe.Pointer(len)), uintptr(hdtr), uintptr(flags)) if e1 != 0 { diff --git a/vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.s b/vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.s index cfe6646ba..ebd213100 100644 --- a/vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.s +++ b/vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.s @@ -248,6 +248,11 @@ TEXT libc_pthread_fchdir_np_trampoline<>(SB),NOSPLIT,$0-0 GLOBL ·libc_pthread_fchdir_np_trampoline_addr(SB), RODATA, $8 DATA ·libc_pthread_fchdir_np_trampoline_addr(SB)/8, $libc_pthread_fchdir_np_trampoline<>(SB) +TEXT libc_connectx_trampoline<>(SB),NOSPLIT,$0-0 + JMP libc_connectx(SB) +GLOBL ·libc_connectx_trampoline_addr(SB), RODATA, $8 +DATA ·libc_connectx_trampoline_addr(SB)/8, $libc_connectx_trampoline<>(SB) + TEXT libc_sendfile_trampoline<>(SB),NOSPLIT,$0-0 JMP libc_sendfile(SB) GLOBL ·libc_sendfile_trampoline_addr(SB), RODATA, $8 diff --git a/vendor/golang.org/x/sys/unix/zsyscall_darwin_arm64.go b/vendor/golang.org/x/sys/unix/zsyscall_darwin_arm64.go index 13f624f69..824b9c2d5 100644 --- a/vendor/golang.org/x/sys/unix/zsyscall_darwin_arm64.go +++ b/vendor/golang.org/x/sys/unix/zsyscall_darwin_arm64.go @@ -841,6 +841,26 @@ var libc_pthread_fchdir_np_trampoline_addr uintptr // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT +func connectx(fd int, endpoints *SaEndpoints, associd SaeAssocID, flags uint32, iov []Iovec, n *uintptr, connid *SaeConnID) (err error) { + var _p0 unsafe.Pointer + if len(iov) > 0 { + _p0 = unsafe.Pointer(&iov[0]) + } else { + _p0 = unsafe.Pointer(&_zero) + } + _, _, e1 := syscall_syscall9(libc_connectx_trampoline_addr, uintptr(fd), uintptr(unsafe.Pointer(endpoints)), uintptr(associd), uintptr(flags), uintptr(_p0), uintptr(len(iov)), uintptr(unsafe.Pointer(n)), uintptr(unsafe.Pointer(connid)), 0) + if e1 != 0 { + err = errnoErr(e1) + } + return +} + +var libc_connectx_trampoline_addr uintptr + +//go:cgo_import_dynamic libc_connectx connectx "/usr/lib/libSystem.B.dylib" + +// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT + func sendfile(infd int, outfd int, offset int64, len *int64, hdtr unsafe.Pointer, flags int) (err error) { _, _, e1 := syscall_syscall6(libc_sendfile_trampoline_addr, uintptr(infd), uintptr(outfd), uintptr(offset), uintptr(unsafe.Pointer(len)), uintptr(hdtr), uintptr(flags)) if e1 != 0 { diff --git a/vendor/golang.org/x/sys/unix/zsyscall_darwin_arm64.s b/vendor/golang.org/x/sys/unix/zsyscall_darwin_arm64.s index fe222b75d..4f178a229 100644 --- a/vendor/golang.org/x/sys/unix/zsyscall_darwin_arm64.s +++ b/vendor/golang.org/x/sys/unix/zsyscall_darwin_arm64.s @@ -248,6 +248,11 @@ TEXT libc_pthread_fchdir_np_trampoline<>(SB),NOSPLIT,$0-0 GLOBL ·libc_pthread_fchdir_np_trampoline_addr(SB), RODATA, $8 DATA ·libc_pthread_fchdir_np_trampoline_addr(SB)/8, $libc_pthread_fchdir_np_trampoline<>(SB) +TEXT libc_connectx_trampoline<>(SB),NOSPLIT,$0-0 + JMP libc_connectx(SB) +GLOBL ·libc_connectx_trampoline_addr(SB), RODATA, $8 +DATA ·libc_connectx_trampoline_addr(SB)/8, $libc_connectx_trampoline<>(SB) + TEXT libc_sendfile_trampoline<>(SB),NOSPLIT,$0-0 JMP libc_sendfile(SB) GLOBL ·libc_sendfile_trampoline_addr(SB), RODATA, $8 diff --git a/vendor/golang.org/x/sys/unix/ztypes_darwin_amd64.go b/vendor/golang.org/x/sys/unix/ztypes_darwin_amd64.go index 091d107f3..d003c3d43 100644 --- a/vendor/golang.org/x/sys/unix/ztypes_darwin_amd64.go +++ b/vendor/golang.org/x/sys/unix/ztypes_darwin_amd64.go @@ -306,6 +306,19 @@ type XVSockPgen struct { type _Socklen uint32 +type SaeAssocID uint32 + +type SaeConnID uint32 + +type SaEndpoints struct { + Srcif uint32 + Srcaddr *RawSockaddr + Srcaddrlen uint32 + Dstaddr *RawSockaddr + Dstaddrlen uint32 + _ [4]byte +} + type Xucred struct { Version uint32 Uid uint32 diff --git a/vendor/golang.org/x/sys/unix/ztypes_darwin_arm64.go b/vendor/golang.org/x/sys/unix/ztypes_darwin_arm64.go index 28ff4ef74..0d45a941a 100644 --- a/vendor/golang.org/x/sys/unix/ztypes_darwin_arm64.go +++ b/vendor/golang.org/x/sys/unix/ztypes_darwin_arm64.go @@ -306,6 +306,19 @@ type XVSockPgen struct { type _Socklen uint32 +type SaeAssocID uint32 + +type SaeConnID uint32 + +type SaEndpoints struct { + Srcif uint32 + Srcaddr *RawSockaddr + Srcaddrlen uint32 + Dstaddr *RawSockaddr + Dstaddrlen uint32 + _ [4]byte +} + type Xucred struct { Version uint32 Uid uint32 diff --git a/vendor/golang.org/x/sys/unix/ztypes_freebsd_386.go b/vendor/golang.org/x/sys/unix/ztypes_freebsd_386.go index 6cbd094a3..51e13eb05 100644 --- a/vendor/golang.org/x/sys/unix/ztypes_freebsd_386.go +++ b/vendor/golang.org/x/sys/unix/ztypes_freebsd_386.go @@ -625,6 +625,7 @@ const ( POLLRDNORM = 0x40 POLLWRBAND = 0x100 POLLWRNORM = 0x4 + POLLRDHUP = 0x4000 ) type CapRights struct { diff --git a/vendor/golang.org/x/sys/unix/ztypes_freebsd_amd64.go b/vendor/golang.org/x/sys/unix/ztypes_freebsd_amd64.go index 7c03b6ee7..d002d8ef3 100644 --- a/vendor/golang.org/x/sys/unix/ztypes_freebsd_amd64.go +++ b/vendor/golang.org/x/sys/unix/ztypes_freebsd_amd64.go @@ -630,6 +630,7 @@ const ( POLLRDNORM = 0x40 POLLWRBAND = 0x100 POLLWRNORM = 0x4 + POLLRDHUP = 0x4000 ) type CapRights struct { diff --git a/vendor/golang.org/x/sys/unix/ztypes_freebsd_arm.go b/vendor/golang.org/x/sys/unix/ztypes_freebsd_arm.go index 422107ee8..3f863d898 100644 --- a/vendor/golang.org/x/sys/unix/ztypes_freebsd_arm.go +++ b/vendor/golang.org/x/sys/unix/ztypes_freebsd_arm.go @@ -616,6 +616,7 @@ const ( POLLRDNORM = 0x40 POLLWRBAND = 0x100 POLLWRNORM = 0x4 + POLLRDHUP = 0x4000 ) type CapRights struct { diff --git a/vendor/golang.org/x/sys/unix/ztypes_freebsd_arm64.go b/vendor/golang.org/x/sys/unix/ztypes_freebsd_arm64.go index 505a12acf..61c729310 100644 --- a/vendor/golang.org/x/sys/unix/ztypes_freebsd_arm64.go +++ b/vendor/golang.org/x/sys/unix/ztypes_freebsd_arm64.go @@ -610,6 +610,7 @@ const ( POLLRDNORM = 0x40 POLLWRBAND = 0x100 POLLWRNORM = 0x4 + POLLRDHUP = 0x4000 ) type CapRights struct { diff --git a/vendor/golang.org/x/sys/unix/ztypes_freebsd_riscv64.go b/vendor/golang.org/x/sys/unix/ztypes_freebsd_riscv64.go index cc986c790..b5d17414f 100644 --- a/vendor/golang.org/x/sys/unix/ztypes_freebsd_riscv64.go +++ b/vendor/golang.org/x/sys/unix/ztypes_freebsd_riscv64.go @@ -612,6 +612,7 @@ const ( POLLRDNORM = 0x40 POLLWRBAND = 0x100 POLLWRNORM = 0x4 + POLLRDHUP = 0x4000 ) type CapRights struct { diff --git a/vendor/golang.org/x/sys/unix/ztypes_linux.go b/vendor/golang.org/x/sys/unix/ztypes_linux.go index 7f1961b90..9f2550dc3 100644 --- a/vendor/golang.org/x/sys/unix/ztypes_linux.go +++ b/vendor/golang.org/x/sys/unix/ztypes_linux.go @@ -2486,7 +2486,7 @@ type XDPMmapOffsets struct { type XDPUmemReg struct { Addr uint64 Len uint64 - Chunk_size uint32 + Size uint32 Headroom uint32 Flags uint32 Tx_metadata_len uint32 diff --git a/vendor/golang.org/x/sys/unix/ztypes_linux_riscv64.go b/vendor/golang.org/x/sys/unix/ztypes_linux_riscv64.go index 15adc0414..ad05b51a6 100644 --- a/vendor/golang.org/x/sys/unix/ztypes_linux_riscv64.go +++ b/vendor/golang.org/x/sys/unix/ztypes_linux_riscv64.go @@ -727,6 +727,37 @@ const ( RISCV_HWPROBE_EXT_ZBA = 0x8 RISCV_HWPROBE_EXT_ZBB = 0x10 RISCV_HWPROBE_EXT_ZBS = 0x20 + RISCV_HWPROBE_EXT_ZICBOZ = 0x40 + RISCV_HWPROBE_EXT_ZBC = 0x80 + RISCV_HWPROBE_EXT_ZBKB = 0x100 + RISCV_HWPROBE_EXT_ZBKC = 0x200 + RISCV_HWPROBE_EXT_ZBKX = 0x400 + RISCV_HWPROBE_EXT_ZKND = 0x800 + RISCV_HWPROBE_EXT_ZKNE = 0x1000 + RISCV_HWPROBE_EXT_ZKNH = 0x2000 + RISCV_HWPROBE_EXT_ZKSED = 0x4000 + RISCV_HWPROBE_EXT_ZKSH = 0x8000 + RISCV_HWPROBE_EXT_ZKT = 0x10000 + RISCV_HWPROBE_EXT_ZVBB = 0x20000 + RISCV_HWPROBE_EXT_ZVBC = 0x40000 + RISCV_HWPROBE_EXT_ZVKB = 0x80000 + RISCV_HWPROBE_EXT_ZVKG = 0x100000 + RISCV_HWPROBE_EXT_ZVKNED = 0x200000 + RISCV_HWPROBE_EXT_ZVKNHA = 0x400000 + RISCV_HWPROBE_EXT_ZVKNHB = 0x800000 + RISCV_HWPROBE_EXT_ZVKSED = 0x1000000 + RISCV_HWPROBE_EXT_ZVKSH = 0x2000000 + RISCV_HWPROBE_EXT_ZVKT = 0x4000000 + RISCV_HWPROBE_EXT_ZFH = 0x8000000 + RISCV_HWPROBE_EXT_ZFHMIN = 0x10000000 + RISCV_HWPROBE_EXT_ZIHINTNTL = 0x20000000 + RISCV_HWPROBE_EXT_ZVFH = 0x40000000 + RISCV_HWPROBE_EXT_ZVFHMIN = 0x80000000 + RISCV_HWPROBE_EXT_ZFA = 0x100000000 + RISCV_HWPROBE_EXT_ZTSO = 0x200000000 + RISCV_HWPROBE_EXT_ZACAS = 0x400000000 + RISCV_HWPROBE_EXT_ZICOND = 0x800000000 + RISCV_HWPROBE_EXT_ZIHINTPAUSE = 0x1000000000 RISCV_HWPROBE_KEY_CPUPERF_0 = 0x5 RISCV_HWPROBE_MISALIGNED_UNKNOWN = 0x0 RISCV_HWPROBE_MISALIGNED_EMULATED = 0x1 @@ -734,4 +765,6 @@ const ( RISCV_HWPROBE_MISALIGNED_FAST = 0x3 RISCV_HWPROBE_MISALIGNED_UNSUPPORTED = 0x4 RISCV_HWPROBE_MISALIGNED_MASK = 0x7 + RISCV_HWPROBE_KEY_ZICBOZ_BLOCK_SIZE = 0x6 + RISCV_HWPROBE_WHICH_CPUS = 0x1 ) diff --git a/vendor/golang.org/x/sys/windows/syscall_windows.go b/vendor/golang.org/x/sys/windows/syscall_windows.go index 1fa34fd17..5cee9a314 100644 --- a/vendor/golang.org/x/sys/windows/syscall_windows.go +++ b/vendor/golang.org/x/sys/windows/syscall_windows.go @@ -313,6 +313,10 @@ func NewCallbackCDecl(fn interface{}) uintptr { //sys SetConsoleMode(console Handle, mode uint32) (err error) = kernel32.SetConsoleMode //sys GetConsoleScreenBufferInfo(console Handle, info *ConsoleScreenBufferInfo) (err error) = kernel32.GetConsoleScreenBufferInfo //sys setConsoleCursorPosition(console Handle, position uint32) (err error) = kernel32.SetConsoleCursorPosition +//sys GetConsoleCP() (cp uint32, err error) = kernel32.GetConsoleCP +//sys GetConsoleOutputCP() (cp uint32, err error) = kernel32.GetConsoleOutputCP +//sys SetConsoleCP(cp uint32) (err error) = kernel32.SetConsoleCP +//sys SetConsoleOutputCP(cp uint32) (err error) = kernel32.SetConsoleOutputCP //sys WriteConsole(console Handle, buf *uint16, towrite uint32, written *uint32, reserved *byte) (err error) = kernel32.WriteConsoleW //sys ReadConsole(console Handle, buf *uint16, toread uint32, read *uint32, inputControl *byte) (err error) = kernel32.ReadConsoleW //sys resizePseudoConsole(pconsole Handle, size uint32) (hr error) = kernel32.ResizePseudoConsole diff --git a/vendor/golang.org/x/sys/windows/types_windows.go b/vendor/golang.org/x/sys/windows/types_windows.go index 3f03b3d57..7b97a154c 100644 --- a/vendor/golang.org/x/sys/windows/types_windows.go +++ b/vendor/golang.org/x/sys/windows/types_windows.go @@ -1060,6 +1060,7 @@ const ( SIO_GET_EXTENSION_FUNCTION_POINTER = IOC_INOUT | IOC_WS2 | 6 SIO_KEEPALIVE_VALS = IOC_IN | IOC_VENDOR | 4 SIO_UDP_CONNRESET = IOC_IN | IOC_VENDOR | 12 + SIO_UDP_NETRESET = IOC_IN | IOC_VENDOR | 15 // cf. http://support.microsoft.com/default.aspx?scid=kb;en-us;257460 diff --git a/vendor/golang.org/x/sys/windows/zsyscall_windows.go b/vendor/golang.org/x/sys/windows/zsyscall_windows.go index 9bb979a3e..4c2e1bdc0 100644 --- a/vendor/golang.org/x/sys/windows/zsyscall_windows.go +++ b/vendor/golang.org/x/sys/windows/zsyscall_windows.go @@ -247,7 +247,9 @@ var ( procGetCommandLineW = modkernel32.NewProc("GetCommandLineW") procGetComputerNameExW = modkernel32.NewProc("GetComputerNameExW") procGetComputerNameW = modkernel32.NewProc("GetComputerNameW") + procGetConsoleCP = modkernel32.NewProc("GetConsoleCP") procGetConsoleMode = modkernel32.NewProc("GetConsoleMode") + procGetConsoleOutputCP = modkernel32.NewProc("GetConsoleOutputCP") procGetConsoleScreenBufferInfo = modkernel32.NewProc("GetConsoleScreenBufferInfo") procGetCurrentDirectoryW = modkernel32.NewProc("GetCurrentDirectoryW") procGetCurrentProcessId = modkernel32.NewProc("GetCurrentProcessId") @@ -347,8 +349,10 @@ var ( procSetCommMask = modkernel32.NewProc("SetCommMask") procSetCommState = modkernel32.NewProc("SetCommState") procSetCommTimeouts = modkernel32.NewProc("SetCommTimeouts") + procSetConsoleCP = modkernel32.NewProc("SetConsoleCP") procSetConsoleCursorPosition = modkernel32.NewProc("SetConsoleCursorPosition") procSetConsoleMode = modkernel32.NewProc("SetConsoleMode") + procSetConsoleOutputCP = modkernel32.NewProc("SetConsoleOutputCP") procSetCurrentDirectoryW = modkernel32.NewProc("SetCurrentDirectoryW") procSetDefaultDllDirectories = modkernel32.NewProc("SetDefaultDllDirectories") procSetDllDirectoryW = modkernel32.NewProc("SetDllDirectoryW") @@ -2162,6 +2166,15 @@ func GetComputerName(buf *uint16, n *uint32) (err error) { return } +func GetConsoleCP() (cp uint32, err error) { + r0, _, e1 := syscall.Syscall(procGetConsoleCP.Addr(), 0, 0, 0, 0) + cp = uint32(r0) + if cp == 0 { + err = errnoErr(e1) + } + return +} + func GetConsoleMode(console Handle, mode *uint32) (err error) { r1, _, e1 := syscall.Syscall(procGetConsoleMode.Addr(), 2, uintptr(console), uintptr(unsafe.Pointer(mode)), 0) if r1 == 0 { @@ -2170,6 +2183,15 @@ func GetConsoleMode(console Handle, mode *uint32) (err error) { return } +func GetConsoleOutputCP() (cp uint32, err error) { + r0, _, e1 := syscall.Syscall(procGetConsoleOutputCP.Addr(), 0, 0, 0, 0) + cp = uint32(r0) + if cp == 0 { + err = errnoErr(e1) + } + return +} + func GetConsoleScreenBufferInfo(console Handle, info *ConsoleScreenBufferInfo) (err error) { r1, _, e1 := syscall.Syscall(procGetConsoleScreenBufferInfo.Addr(), 2, uintptr(console), uintptr(unsafe.Pointer(info)), 0) if r1 == 0 { @@ -3038,6 +3060,14 @@ func SetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error) { return } +func SetConsoleCP(cp uint32) (err error) { + r1, _, e1 := syscall.Syscall(procSetConsoleCP.Addr(), 1, uintptr(cp), 0, 0) + if r1 == 0 { + err = errnoErr(e1) + } + return +} + func setConsoleCursorPosition(console Handle, position uint32) (err error) { r1, _, e1 := syscall.Syscall(procSetConsoleCursorPosition.Addr(), 2, uintptr(console), uintptr(position), 0) if r1 == 0 { @@ -3054,6 +3084,14 @@ func SetConsoleMode(console Handle, mode uint32) (err error) { return } +func SetConsoleOutputCP(cp uint32) (err error) { + r1, _, e1 := syscall.Syscall(procSetConsoleOutputCP.Addr(), 1, uintptr(cp), 0, 0) + if r1 == 0 { + err = errnoErr(e1) + } + return +} + func SetCurrentDirectory(path *uint16) (err error) { r1, _, e1 := syscall.Syscall(procSetCurrentDirectoryW.Addr(), 1, uintptr(unsafe.Pointer(path)), 0, 0) if r1 == 0 { diff --git a/vendor/gopkg.in/gcfg.v1/LICENSE b/vendor/gopkg.in/gcfg.v1/LICENSE new file mode 100644 index 000000000..87a5cede3 --- /dev/null +++ b/vendor/gopkg.in/gcfg.v1/LICENSE @@ -0,0 +1,28 @@ +Copyright (c) 2012 Péter Surányi. Portions Copyright (c) 2009 The Go +Authors. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/gopkg.in/gcfg.v1/README b/vendor/gopkg.in/gcfg.v1/README new file mode 100644 index 000000000..1ff233a52 --- /dev/null +++ b/vendor/gopkg.in/gcfg.v1/README @@ -0,0 +1,4 @@ +Gcfg reads INI-style configuration files into Go structs; +supports user-defined types and subsections. + +Package docs: https://godoc.org/gopkg.in/gcfg.v1 diff --git a/vendor/gopkg.in/gcfg.v1/doc.go b/vendor/gopkg.in/gcfg.v1/doc.go new file mode 100644 index 000000000..32f3e9d69 --- /dev/null +++ b/vendor/gopkg.in/gcfg.v1/doc.go @@ -0,0 +1,145 @@ +// Package gcfg reads "INI-style" text-based configuration files with +// "name=value" pairs grouped into sections (gcfg files). +// +// This package is still a work in progress; see the sections below for planned +// changes. +// +// Syntax +// +// The syntax is based on that used by git config: +// http://git-scm.com/docs/git-config#_syntax . +// There are some (planned) differences compared to the git config format: +// - improve data portability: +// - must be encoded in UTF-8 (for now) and must not contain the 0 byte +// - include and "path" type is not supported +// (path type may be implementable as a user-defined type) +// - internationalization +// - section and variable names can contain unicode letters, unicode digits +// (as defined in http://golang.org/ref/spec#Characters ) and hyphens +// (U+002D), starting with a unicode letter +// - disallow potentially ambiguous or misleading definitions: +// - `[sec.sub]` format is not allowed (deprecated in gitconfig) +// - `[sec ""]` is not allowed +// - use `[sec]` for section name "sec" and empty subsection name +// - (planned) within a single file, definitions must be contiguous for each: +// - section: '[secA]' -> '[secB]' -> '[secA]' is an error +// - subsection: '[sec "A"]' -> '[sec "B"]' -> '[sec "A"]' is an error +// - multivalued variable: 'multi=a' -> 'other=x' -> 'multi=b' is an error +// +// Data structure +// +// The functions in this package read values into a user-defined struct. +// Each section corresponds to a struct field in the config struct, and each +// variable in a section corresponds to a data field in the section struct. +// The mapping of each section or variable name to fields is done either based +// on the "gcfg" struct tag or by matching the name of the section or variable, +// ignoring case. In the latter case, hyphens '-' in section and variable names +// correspond to underscores '_' in field names. +// Fields must be exported; to use a section or variable name starting with a +// letter that is neither upper- or lower-case, prefix the field name with 'X'. +// (See https://code.google.com/p/go/issues/detail?id=5763#c4 .) +// +// For sections with subsections, the corresponding field in config must be a +// map, rather than a struct, with string keys and pointer-to-struct values. +// Values for subsection variables are stored in the map with the subsection +// name used as the map key. +// (Note that unlike section and variable names, subsection names are case +// sensitive.) +// When using a map, and there is a section with the same section name but +// without a subsection name, its values are stored with the empty string used +// as the key. +// It is possible to provide default values for subsections in the section +// "default-" (or by setting values in the corresponding struct +// field "Default_"). +// +// The functions in this package panic if config is not a pointer to a struct, +// or when a field is not of a suitable type (either a struct or a map with +// string keys and pointer-to-struct values). +// +// Parsing of values +// +// The section structs in the config struct may contain single-valued or +// multi-valued variables. Variables of unnamed slice type (that is, a type +// starting with `[]`) are treated as multi-value; all others (including named +// slice types) are treated as single-valued variables. +// +// Single-valued variables are handled based on the type as follows. +// Unnamed pointer types (that is, types starting with `*`) are dereferenced, +// and if necessary, a new instance is allocated. +// +// For types implementing the encoding.TextUnmarshaler interface, the +// UnmarshalText method is used to set the value. Implementing this method is +// the recommended way for parsing user-defined types. +// +// For fields of string kind, the value string is assigned to the field, after +// unquoting and unescaping as needed. +// For fields of bool kind, the field is set to true if the value is "true", +// "yes", "on" or "1", and set to false if the value is "false", "no", "off" or +// "0", ignoring case. In addition, single-valued bool fields can be specified +// with a "blank" value (variable name without equals sign and value); in such +// case the value is set to true. +// +// Predefined integer types [u]int(|8|16|32|64) and big.Int are parsed as +// decimal or hexadecimal (if having '0x' prefix). (This is to prevent +// unintuitively handling zero-padded numbers as octal.) Other types having +// [u]int* as the underlying type, such as os.FileMode and uintptr allow +// decimal, hexadecimal, or octal values. +// Parsing mode for integer types can be overridden using the struct tag option +// ",int=mode" where mode is a combination of the 'd', 'h', and 'o' characters +// (each standing for decimal, hexadecimal, and octal, respectively.) +// +// All other types are parsed using fmt.Sscanf with the "%v" verb. +// +// For multi-valued variables, each individual value is parsed as above and +// appended to the slice. If the first value is specified as a "blank" value +// (variable name without equals sign and value), a new slice is allocated; +// that is any values previously set in the slice will be ignored. +// +// The types subpackage for provides helpers for parsing "enum-like" and integer +// types. +// +// Error handling +// +// There are 3 types of errors: +// +// - programmer errors / panics: +// - invalid configuration structure +// - data errors: +// - fatal errors: +// - invalid configuration syntax +// - warnings: +// - data that doesn't belong to any part of the config structure +// +// Programmer errors trigger panics. These are should be fixed by the programmer +// before releasing code that uses gcfg. +// +// Data errors cause gcfg to return a non-nil error value. This includes the +// case when there are extra unknown key-value definitions in the configuration +// data (extra data). +// However, in some occasions it is desirable to be able to proceed in +// situations when the only data error is that of extra data. +// These errors are handled at a different (warning) priority and can be +// filtered out programmatically. To ignore extra data warnings, wrap the +// gcfg.Read*Into invocation into a call to gcfg.FatalOnly. +// +// TODO +// +// The following is a list of changes under consideration: +// - documentation +// - self-contained syntax documentation +// - more practical examples +// - move TODOs to issue tracker (eventually) +// - syntax +// - reconsider valid escape sequences +// (gitconfig doesn't support \r in value, \t in subsection name, etc.) +// - reading / parsing gcfg files +// - define internal representation structure +// - support multiple inputs (readers, strings, files) +// - support declaring encoding (?) +// - support varying fields sets for subsections (?) +// - writing gcfg files +// - error handling +// - make error context accessible programmatically? +// - limit input size? +// +package gcfg // import "gopkg.in/gcfg.v1" diff --git a/vendor/gopkg.in/gcfg.v1/errors.go b/vendor/gopkg.in/gcfg.v1/errors.go new file mode 100644 index 000000000..83a591dac --- /dev/null +++ b/vendor/gopkg.in/gcfg.v1/errors.go @@ -0,0 +1,57 @@ +package gcfg + +import warnings "gopkg.in/warnings.v0" + +// FatalOnly filters the results of a Read*Into invocation and returns only +// fatal errors. That is, errors (warnings) indicating data for unknown +// sections / variables is ignored. Example invocation: +// +// err := gcfg.FatalOnly(gcfg.ReadFileInto(&cfg, configFile)) +// if err != nil { +// ... +// +func FatalOnly(err error) error { + return warnings.FatalOnly(err) +} + +func isFatal(err error) bool { + _, ok := err.(extraData) + return !ok +} + +type loc struct { + section string + subsection *string + variable *string +} + +type extraData struct { + loc +} + +type locErr struct { + msg string + loc +} + +func (l loc) String() string { + s := "section \"" + l.section + "\"" + if l.subsection != nil { + s += ", subsection \"" + *l.subsection + "\"" + } + if l.variable != nil { + s += ", variable \"" + *l.variable + "\"" + } + return s +} + +func (e extraData) Error() string { + return "can't store data at " + e.loc.String() +} + +func (e locErr) Error() string { + return e.msg + " at " + e.loc.String() +} + +var _ error = extraData{} +var _ error = locErr{} diff --git a/vendor/gopkg.in/gcfg.v1/read.go b/vendor/gopkg.in/gcfg.v1/read.go new file mode 100644 index 000000000..06796653c --- /dev/null +++ b/vendor/gopkg.in/gcfg.v1/read.go @@ -0,0 +1,257 @@ +package gcfg + +import ( + "bytes" + "fmt" + "io" + "io/ioutil" + "os" + "strings" + + "gopkg.in/gcfg.v1/scanner" + "gopkg.in/gcfg.v1/token" + "gopkg.in/warnings.v0" +) + +var unescape = map[rune]rune{'\\': '\\', '"': '"', 'n': '\n', 't': '\t'} +var utf8Bom = []byte("\ufeff") + +// no error: invalid literals should be caught by scanner +func unquote(s string) string { + u, q, esc := make([]rune, 0, len(s)), false, false + for _, c := range s { + if esc { + uc, ok := unescape[c] + switch { + case ok: + u = append(u, uc) + fallthrough + case !q && c == '\n': + esc = false + continue + } + panic("invalid escape sequence") + } + switch c { + case '"': + q = !q + case '\\': + esc = true + default: + u = append(u, c) + } + } + if q { + panic("missing end quote") + } + if esc { + panic("invalid escape sequence") + } + return string(u) +} + +func readIntoPass(c *warnings.Collector, config interface{}, fset *token.FileSet, + file *token.File, src []byte, subsectPass bool) error { + // + var s scanner.Scanner + var errs scanner.ErrorList + s.Init(file, src, func(p token.Position, m string) { errs.Add(p, m) }, 0) + sect, sectsub := "", "" + pos, tok, lit := s.Scan() + errfn := func(msg string) error { + return fmt.Errorf("%s: %s", fset.Position(pos), msg) + } + for { + if errs.Len() > 0 { + if err := c.Collect(errs.Err()); err != nil { + return err + } + } + switch tok { + case token.EOF: + return nil + case token.EOL, token.COMMENT: + pos, tok, lit = s.Scan() + case token.LBRACK: + pos, tok, lit = s.Scan() + if errs.Len() > 0 { + if err := c.Collect(errs.Err()); err != nil { + return err + } + } + if tok != token.IDENT { + if err := c.Collect(errfn("expected section name")); err != nil { + return err + } + } + sect, sectsub = lit, "" + pos, tok, lit = s.Scan() + if errs.Len() > 0 { + if err := c.Collect(errs.Err()); err != nil { + return err + } + } + if tok == token.STRING { + sectsub = unquote(lit) + if sectsub == "" { + if err := c.Collect(errfn("empty subsection name")); err != nil { + return err + } + } + pos, tok, lit = s.Scan() + if errs.Len() > 0 { + if err := c.Collect(errs.Err()); err != nil { + return err + } + } + } + if tok != token.RBRACK { + if sectsub == "" { + if err := c.Collect(errfn("expected subsection name or right bracket")); err != nil { + return err + } + } + if err := c.Collect(errfn("expected right bracket")); err != nil { + return err + } + } + pos, tok, lit = s.Scan() + if tok != token.EOL && tok != token.EOF && tok != token.COMMENT { + if err := c.Collect(errfn("expected EOL, EOF, or comment")); err != nil { + return err + } + } + // If a section/subsection header was found, ensure a + // container object is created, even if there are no + // variables further down. + err := c.Collect(set(c, config, sect, sectsub, "", true, "", subsectPass)) + if err != nil { + return err + } + case token.IDENT: + if sect == "" { + if err := c.Collect(errfn("expected section header")); err != nil { + return err + } + } + n := lit + pos, tok, lit = s.Scan() + if errs.Len() > 0 { + return errs.Err() + } + blank, v := tok == token.EOF || tok == token.EOL || tok == token.COMMENT, "" + if !blank { + if tok != token.ASSIGN { + if err := c.Collect(errfn("expected '='")); err != nil { + return err + } + } + pos, tok, lit = s.Scan() + if errs.Len() > 0 { + if err := c.Collect(errs.Err()); err != nil { + return err + } + } + if tok != token.STRING { + if err := c.Collect(errfn("expected value")); err != nil { + return err + } + } + v = unquote(lit) + pos, tok, lit = s.Scan() + if errs.Len() > 0 { + if err := c.Collect(errs.Err()); err != nil { + return err + } + } + if tok != token.EOL && tok != token.EOF && tok != token.COMMENT { + if err := c.Collect(errfn("expected EOL, EOF, or comment")); err != nil { + return err + } + } + } + err := set(c, config, sect, sectsub, n, blank, v, subsectPass) + if err != nil { + return err + } + default: + if sect == "" { + if err := c.Collect(errfn("expected section header")); err != nil { + return err + } + } + if err := c.Collect(errfn("expected section header or variable declaration")); err != nil { + return err + } + } + } +} + +func readInto(config interface{}, fset *token.FileSet, file *token.File, + src []byte) error { + // + c := warnings.NewCollector(isFatal) + err := readIntoPass(c, config, fset, file, src, false) + if err != nil { + return err + } + err = readIntoPass(c, config, fset, file, src, true) + if err != nil { + return err + } + return c.Done() +} + +// ReadInto reads gcfg formatted data from reader and sets the values into the +// corresponding fields in config. +func ReadInto(config interface{}, reader io.Reader) error { + src, err := ioutil.ReadAll(reader) + if err != nil { + return err + } + fset := token.NewFileSet() + file := fset.AddFile("", fset.Base(), len(src)) + return readInto(config, fset, file, src) +} + +// ReadStringInto reads gcfg formatted data from str and sets the values into +// the corresponding fields in config. +func ReadStringInto(config interface{}, str string) error { + r := strings.NewReader(str) + return ReadInto(config, r) +} + +// ReadFileInto reads gcfg formatted data from the file filename and sets the +// values into the corresponding fields in config. +// +// For compatibility with files created on Windows, the ReadFileInto skips a +// single leading UTF8 BOM sequence if it exists. +func ReadFileInto(config interface{}, filename string) error { + f, err := os.Open(filename) + if err != nil { + return err + } + defer f.Close() + src, err := ioutil.ReadAll(f) + if err != nil { + return err + } + + // Skips a single leading UTF8 BOM sequence if it exists. + src = skipLeadingUtf8Bom(src) + + fset := token.NewFileSet() + file := fset.AddFile(filename, fset.Base(), len(src)) + return readInto(config, fset, file, src) +} + +func skipLeadingUtf8Bom(src []byte) []byte { + lengthUtf8Bom := len(utf8Bom) + + if len(src) >= lengthUtf8Bom { + if bytes.Equal(src[:lengthUtf8Bom], utf8Bom) { + return src[lengthUtf8Bom:] + } + } + return src +} diff --git a/vendor/gopkg.in/gcfg.v1/scanner/errors.go b/vendor/gopkg.in/gcfg.v1/scanner/errors.go new file mode 100644 index 000000000..1a3c0f656 --- /dev/null +++ b/vendor/gopkg.in/gcfg.v1/scanner/errors.go @@ -0,0 +1,121 @@ +// Copyright 2009 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package scanner + +import ( + "fmt" + "io" + "sort" +) + +import ( + "gopkg.in/gcfg.v1/token" +) + +// In an ErrorList, an error is represented by an *Error. +// The position Pos, if valid, points to the beginning of +// the offending token, and the error condition is described +// by Msg. +// +type Error struct { + Pos token.Position + Msg string +} + +// Error implements the error interface. +func (e Error) Error() string { + if e.Pos.Filename != "" || e.Pos.IsValid() { + // don't print "" + // TODO(gri) reconsider the semantics of Position.IsValid + return e.Pos.String() + ": " + e.Msg + } + return e.Msg +} + +// ErrorList is a list of *Errors. +// The zero value for an ErrorList is an empty ErrorList ready to use. +// +type ErrorList []*Error + +// Add adds an Error with given position and error message to an ErrorList. +func (p *ErrorList) Add(pos token.Position, msg string) { + *p = append(*p, &Error{pos, msg}) +} + +// Reset resets an ErrorList to no errors. +func (p *ErrorList) Reset() { *p = (*p)[0:0] } + +// ErrorList implements the sort Interface. +func (p ErrorList) Len() int { return len(p) } +func (p ErrorList) Swap(i, j int) { p[i], p[j] = p[j], p[i] } + +func (p ErrorList) Less(i, j int) bool { + e := &p[i].Pos + f := &p[j].Pos + if e.Filename < f.Filename { + return true + } + if e.Filename == f.Filename { + return e.Offset < f.Offset + } + return false +} + +// Sort sorts an ErrorList. *Error entries are sorted by position, +// other errors are sorted by error message, and before any *Error +// entry. +// +func (p ErrorList) Sort() { + sort.Sort(p) +} + +// RemoveMultiples sorts an ErrorList and removes all but the first error per line. +func (p *ErrorList) RemoveMultiples() { + sort.Sort(p) + var last token.Position // initial last.Line is != any legal error line + i := 0 + for _, e := range *p { + if e.Pos.Filename != last.Filename || e.Pos.Line != last.Line { + last = e.Pos + (*p)[i] = e + i++ + } + } + (*p) = (*p)[0:i] +} + +// An ErrorList implements the error interface. +func (p ErrorList) Error() string { + switch len(p) { + case 0: + return "no errors" + case 1: + return p[0].Error() + } + return fmt.Sprintf("%s (and %d more errors)", p[0], len(p)-1) +} + +// Err returns an error equivalent to this error list. +// If the list is empty, Err returns nil. +func (p ErrorList) Err() error { + if len(p) == 0 { + return nil + } + return p +} + +// PrintError is a utility function that prints a list of errors to w, +// one error per line, if the err parameter is an ErrorList. Otherwise +// it prints the err string. +// +func PrintError(w io.Writer, err error) { + if list, ok := err.(ErrorList); ok { + for _, e := range list { + fmt.Fprintf(w, "%s\n", e) + } + } else if err != nil { + fmt.Fprintf(w, "%s\n", err) + } +} diff --git a/vendor/gopkg.in/gcfg.v1/scanner/scanner.go b/vendor/gopkg.in/gcfg.v1/scanner/scanner.go new file mode 100644 index 000000000..6d0eee916 --- /dev/null +++ b/vendor/gopkg.in/gcfg.v1/scanner/scanner.go @@ -0,0 +1,342 @@ +// Copyright 2009 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package scanner implements a scanner for gcfg configuration text. +// It takes a []byte as source which can then be tokenized +// through repeated calls to the Scan method. +// +// Note that the API for the scanner package may change to accommodate new +// features or implementation changes in gcfg. +// +package scanner + +import ( + "fmt" + "path/filepath" + "unicode" + "unicode/utf8" +) + +import ( + "gopkg.in/gcfg.v1/token" +) + +// An ErrorHandler may be provided to Scanner.Init. If a syntax error is +// encountered and a handler was installed, the handler is called with a +// position and an error message. The position points to the beginning of +// the offending token. +// +type ErrorHandler func(pos token.Position, msg string) + +// A Scanner holds the scanner's internal state while processing +// a given text. It can be allocated as part of another data +// structure but must be initialized via Init before use. +// +type Scanner struct { + // immutable state + file *token.File // source file handle + dir string // directory portion of file.Name() + src []byte // source + err ErrorHandler // error reporting; or nil + mode Mode // scanning mode + + // scanning state + ch rune // current character + offset int // character offset + rdOffset int // reading offset (position after current character) + lineOffset int // current line offset + nextVal bool // next token is expected to be a value + + // public state - ok to modify + ErrorCount int // number of errors encountered +} + +// Read the next Unicode char into s.ch. +// s.ch < 0 means end-of-file. +// +func (s *Scanner) next() { + if s.rdOffset < len(s.src) { + s.offset = s.rdOffset + if s.ch == '\n' { + s.lineOffset = s.offset + s.file.AddLine(s.offset) + } + r, w := rune(s.src[s.rdOffset]), 1 + switch { + case r == 0: + s.error(s.offset, "illegal character NUL") + case r >= 0x80: + // not ASCII + r, w = utf8.DecodeRune(s.src[s.rdOffset:]) + if r == utf8.RuneError && w == 1 { + s.error(s.offset, "illegal UTF-8 encoding") + } + } + s.rdOffset += w + s.ch = r + } else { + s.offset = len(s.src) + if s.ch == '\n' { + s.lineOffset = s.offset + s.file.AddLine(s.offset) + } + s.ch = -1 // eof + } +} + +// A mode value is a set of flags (or 0). +// They control scanner behavior. +// +type Mode uint + +const ( + ScanComments Mode = 1 << iota // return comments as COMMENT tokens +) + +// Init prepares the scanner s to tokenize the text src by setting the +// scanner at the beginning of src. The scanner uses the file set file +// for position information and it adds line information for each line. +// It is ok to re-use the same file when re-scanning the same file as +// line information which is already present is ignored. Init causes a +// panic if the file size does not match the src size. +// +// Calls to Scan will invoke the error handler err if they encounter a +// syntax error and err is not nil. Also, for each error encountered, +// the Scanner field ErrorCount is incremented by one. The mode parameter +// determines how comments are handled. +// +// Note that Init may call err if there is an error in the first character +// of the file. +// +func (s *Scanner) Init(file *token.File, src []byte, err ErrorHandler, mode Mode) { + // Explicitly initialize all fields since a scanner may be reused. + if file.Size() != len(src) { + panic(fmt.Sprintf("file size (%d) does not match src len (%d)", file.Size(), len(src))) + } + s.file = file + s.dir, _ = filepath.Split(file.Name()) + s.src = src + s.err = err + s.mode = mode + + s.ch = ' ' + s.offset = 0 + s.rdOffset = 0 + s.lineOffset = 0 + s.ErrorCount = 0 + s.nextVal = false + + s.next() +} + +func (s *Scanner) error(offs int, msg string) { + if s.err != nil { + s.err(s.file.Position(s.file.Pos(offs)), msg) + } + s.ErrorCount++ +} + +func (s *Scanner) scanComment() string { + // initial [;#] already consumed + offs := s.offset - 1 // position of initial [;#] + + for s.ch != '\n' && s.ch >= 0 { + s.next() + } + return string(s.src[offs:s.offset]) +} + +func isLetter(ch rune) bool { + return 'a' <= ch && ch <= 'z' || 'A' <= ch && ch <= 'Z' || ch >= 0x80 && unicode.IsLetter(ch) +} + +func isDigit(ch rune) bool { + return '0' <= ch && ch <= '9' || ch >= 0x80 && unicode.IsDigit(ch) +} + +func (s *Scanner) scanIdentifier() string { + offs := s.offset + for isLetter(s.ch) || isDigit(s.ch) || s.ch == '-' { + s.next() + } + return string(s.src[offs:s.offset]) +} + +func (s *Scanner) scanEscape(val bool) { + offs := s.offset + ch := s.ch + s.next() // always make progress + switch ch { + case '\\', '"': + // ok + case 'n', 't': + if val { + break // ok + } + fallthrough + default: + s.error(offs, "unknown escape sequence") + } +} + +func (s *Scanner) scanString() string { + // '"' opening already consumed + offs := s.offset - 1 + + for s.ch != '"' { + ch := s.ch + s.next() + if ch == '\n' || ch < 0 { + s.error(offs, "string not terminated") + break + } + if ch == '\\' { + s.scanEscape(false) + } + } + + s.next() + + return string(s.src[offs:s.offset]) +} + +func stripCR(b []byte) []byte { + c := make([]byte, len(b)) + i := 0 + for _, ch := range b { + if ch != '\r' { + c[i] = ch + i++ + } + } + return c[:i] +} + +func (s *Scanner) scanValString() string { + offs := s.offset + + hasCR := false + end := offs + inQuote := false +loop: + for inQuote || s.ch >= 0 && s.ch != '\n' && s.ch != ';' && s.ch != '#' { + ch := s.ch + s.next() + switch { + case inQuote && ch == '\\': + s.scanEscape(true) + case !inQuote && ch == '\\': + if s.ch == '\r' { + hasCR = true + s.next() + } + if s.ch != '\n' && s.ch != '"' { + s.error(offs, "unquoted '\\' must be followed by new line or double quote") + break loop + } + s.next() + case ch == '"': + inQuote = !inQuote + case ch == '\r': + hasCR = true + case ch < 0 || inQuote && ch == '\n': + s.error(offs, "string not terminated") + break loop + } + if inQuote || !isWhiteSpace(ch) { + end = s.offset + } + } + + lit := s.src[offs:end] + if hasCR { + lit = stripCR(lit) + } + + return string(lit) +} + +func isWhiteSpace(ch rune) bool { + return ch == ' ' || ch == '\t' || ch == '\r' +} + +func (s *Scanner) skipWhitespace() { + for isWhiteSpace(s.ch) { + s.next() + } +} + +// Scan scans the next token and returns the token position, the token, +// and its literal string if applicable. The source end is indicated by +// token.EOF. +// +// If the returned token is a literal (token.IDENT, token.STRING) or +// token.COMMENT, the literal string has the corresponding value. +// +// If the returned token is token.ILLEGAL, the literal string is the +// offending character. +// +// In all other cases, Scan returns an empty literal string. +// +// For more tolerant parsing, Scan will return a valid token if +// possible even if a syntax error was encountered. Thus, even +// if the resulting token sequence contains no illegal tokens, +// a client may not assume that no error occurred. Instead it +// must check the scanner's ErrorCount or the number of calls +// of the error handler, if there was one installed. +// +// Scan adds line information to the file added to the file +// set with Init. Token positions are relative to that file +// and thus relative to the file set. +// +func (s *Scanner) Scan() (pos token.Pos, tok token.Token, lit string) { +scanAgain: + s.skipWhitespace() + + // current token start + pos = s.file.Pos(s.offset) + + // determine token value + switch ch := s.ch; { + case s.nextVal: + lit = s.scanValString() + tok = token.STRING + s.nextVal = false + case isLetter(ch): + lit = s.scanIdentifier() + tok = token.IDENT + default: + s.next() // always make progress + switch ch { + case -1: + tok = token.EOF + case '\n': + tok = token.EOL + case '"': + tok = token.STRING + lit = s.scanString() + case '[': + tok = token.LBRACK + case ']': + tok = token.RBRACK + case ';', '#': + // comment + lit = s.scanComment() + if s.mode&ScanComments == 0 { + // skip comment + goto scanAgain + } + tok = token.COMMENT + case '=': + tok = token.ASSIGN + s.nextVal = true + default: + s.error(s.file.Offset(pos), fmt.Sprintf("illegal character %#U", ch)) + tok = token.ILLEGAL + lit = string(ch) + } + } + + return +} diff --git a/vendor/gopkg.in/gcfg.v1/set.go b/vendor/gopkg.in/gcfg.v1/set.go new file mode 100644 index 000000000..73aee5003 --- /dev/null +++ b/vendor/gopkg.in/gcfg.v1/set.go @@ -0,0 +1,329 @@ +package gcfg + +import ( + "bytes" + "encoding" + "encoding/gob" + "fmt" + "math/big" + "reflect" + "strings" + "unicode" + "unicode/utf8" + + "gopkg.in/gcfg.v1/types" + "gopkg.in/warnings.v0" +) + +type tag struct { + ident string + intMode string +} + +func newTag(ts string) tag { + t := tag{} + s := strings.Split(ts, ",") + t.ident = s[0] + for _, tse := range s[1:] { + if strings.HasPrefix(tse, "int=") { + t.intMode = tse[len("int="):] + } + } + return t +} + +func fieldFold(v reflect.Value, name string) (reflect.Value, tag) { + var n string + r0, _ := utf8.DecodeRuneInString(name) + if unicode.IsLetter(r0) && !unicode.IsLower(r0) && !unicode.IsUpper(r0) { + n = "X" + } + n += strings.Replace(name, "-", "_", -1) + f, ok := v.Type().FieldByNameFunc(func(fieldName string) bool { + if !v.FieldByName(fieldName).CanSet() { + return false + } + f, _ := v.Type().FieldByName(fieldName) + t := newTag(f.Tag.Get("gcfg")) + if t.ident != "" { + return strings.EqualFold(t.ident, name) + } + return strings.EqualFold(n, fieldName) + }) + if !ok { + return reflect.Value{}, tag{} + } + return v.FieldByName(f.Name), newTag(f.Tag.Get("gcfg")) +} + +type setter func(destp interface{}, blank bool, val string, t tag) error + +var errUnsupportedType = fmt.Errorf("unsupported type") +var errBlankUnsupported = fmt.Errorf("blank value not supported for type") + +var setters = []setter{ + typeSetter, textUnmarshalerSetter, kindSetter, scanSetter, +} + +func textUnmarshalerSetter(d interface{}, blank bool, val string, t tag) error { + dtu, ok := d.(encoding.TextUnmarshaler) + if !ok { + return errUnsupportedType + } + if blank { + return errBlankUnsupported + } + return dtu.UnmarshalText([]byte(val)) +} + +func boolSetter(d interface{}, blank bool, val string, t tag) error { + if blank { + reflect.ValueOf(d).Elem().Set(reflect.ValueOf(true)) + return nil + } + b, err := types.ParseBool(val) + if err == nil { + reflect.ValueOf(d).Elem().Set(reflect.ValueOf(b)) + } + return err +} + +func intMode(mode string) types.IntMode { + var m types.IntMode + if strings.ContainsAny(mode, "dD") { + m |= types.Dec + } + if strings.ContainsAny(mode, "hH") { + m |= types.Hex + } + if strings.ContainsAny(mode, "oO") { + m |= types.Oct + } + return m +} + +var typeModes = map[reflect.Type]types.IntMode{ + reflect.TypeOf(int(0)): types.Dec | types.Hex, + reflect.TypeOf(int8(0)): types.Dec | types.Hex, + reflect.TypeOf(int16(0)): types.Dec | types.Hex, + reflect.TypeOf(int32(0)): types.Dec | types.Hex, + reflect.TypeOf(int64(0)): types.Dec | types.Hex, + reflect.TypeOf(uint(0)): types.Dec | types.Hex, + reflect.TypeOf(uint8(0)): types.Dec | types.Hex, + reflect.TypeOf(uint16(0)): types.Dec | types.Hex, + reflect.TypeOf(uint32(0)): types.Dec | types.Hex, + reflect.TypeOf(uint64(0)): types.Dec | types.Hex, + // use default mode (allow dec/hex/oct) for uintptr type + reflect.TypeOf(big.Int{}): types.Dec | types.Hex, +} + +func intModeDefault(t reflect.Type) types.IntMode { + m, ok := typeModes[t] + if !ok { + m = types.Dec | types.Hex | types.Oct + } + return m +} + +func intSetter(d interface{}, blank bool, val string, t tag) error { + if blank { + return errBlankUnsupported + } + mode := intMode(t.intMode) + if mode == 0 { + mode = intModeDefault(reflect.TypeOf(d).Elem()) + } + return types.ParseInt(d, val, mode) +} + +func stringSetter(d interface{}, blank bool, val string, t tag) error { + if blank { + return errBlankUnsupported + } + dsp, ok := d.(*string) + if !ok { + return errUnsupportedType + } + *dsp = val + return nil +} + +var kindSetters = map[reflect.Kind]setter{ + reflect.String: stringSetter, + reflect.Bool: boolSetter, + reflect.Int: intSetter, + reflect.Int8: intSetter, + reflect.Int16: intSetter, + reflect.Int32: intSetter, + reflect.Int64: intSetter, + reflect.Uint: intSetter, + reflect.Uint8: intSetter, + reflect.Uint16: intSetter, + reflect.Uint32: intSetter, + reflect.Uint64: intSetter, + reflect.Uintptr: intSetter, +} + +var typeSetters = map[reflect.Type]setter{ + reflect.TypeOf(big.Int{}): intSetter, +} + +func typeSetter(d interface{}, blank bool, val string, tt tag) error { + t := reflect.ValueOf(d).Type().Elem() + setter, ok := typeSetters[t] + if !ok { + return errUnsupportedType + } + return setter(d, blank, val, tt) +} + +func kindSetter(d interface{}, blank bool, val string, tt tag) error { + k := reflect.ValueOf(d).Type().Elem().Kind() + setter, ok := kindSetters[k] + if !ok { + return errUnsupportedType + } + return setter(d, blank, val, tt) +} + +func scanSetter(d interface{}, blank bool, val string, tt tag) error { + if blank { + return errBlankUnsupported + } + return types.ScanFully(d, val, 'v') +} + +func newValue(c *warnings.Collector, sect string, vCfg reflect.Value, + vType reflect.Type) (reflect.Value, error) { + // + pv := reflect.New(vType) + dfltName := "default-" + sect + dfltField, _ := fieldFold(vCfg, dfltName) + var err error + if dfltField.IsValid() { + b := bytes.NewBuffer(nil) + ge := gob.NewEncoder(b) + if err = c.Collect(ge.EncodeValue(dfltField)); err != nil { + return pv, err + } + gd := gob.NewDecoder(bytes.NewReader(b.Bytes())) + if err = c.Collect(gd.DecodeValue(pv.Elem())); err != nil { + return pv, err + } + } + return pv, nil +} + +func set(c *warnings.Collector, cfg interface{}, sect, sub, name string, + blank bool, value string, subsectPass bool) error { + // + vPCfg := reflect.ValueOf(cfg) + if vPCfg.Kind() != reflect.Ptr || vPCfg.Elem().Kind() != reflect.Struct { + panic(fmt.Errorf("config must be a pointer to a struct")) + } + vCfg := vPCfg.Elem() + vSect, _ := fieldFold(vCfg, sect) + l := loc{section: sect} + if !vSect.IsValid() { + err := extraData{loc: l} + return c.Collect(err) + } + isSubsect := vSect.Kind() == reflect.Map + if subsectPass != isSubsect { + return nil + } + if isSubsect { + l.subsection = &sub + vst := vSect.Type() + if vst.Key().Kind() != reflect.String || + vst.Elem().Kind() != reflect.Ptr || + vst.Elem().Elem().Kind() != reflect.Struct { + panic(fmt.Errorf("map field for section must have string keys and "+ + " pointer-to-struct values: section %q", sect)) + } + if vSect.IsNil() { + vSect.Set(reflect.MakeMap(vst)) + } + k := reflect.ValueOf(sub) + pv := vSect.MapIndex(k) + if !pv.IsValid() { + vType := vSect.Type().Elem().Elem() + var err error + if pv, err = newValue(c, sect, vCfg, vType); err != nil { + return err + } + vSect.SetMapIndex(k, pv) + } + vSect = pv.Elem() + } else if vSect.Kind() != reflect.Struct { + panic(fmt.Errorf("field for section must be a map or a struct: "+ + "section %q", sect)) + } else if sub != "" { + return c.Collect(extraData{loc: l}) + } + // Empty name is a special value, meaning that only the + // section/subsection object is to be created, with no values set. + if name == "" { + return nil + } + vVar, t := fieldFold(vSect, name) + l.variable = &name + if !vVar.IsValid() { + return c.Collect(extraData{loc: l}) + } + // vVal is either single-valued var, or newly allocated value within multi-valued var + var vVal reflect.Value + // multi-value if unnamed slice type + isMulti := vVar.Type().Name() == "" && vVar.Kind() == reflect.Slice || + vVar.Type().Name() == "" && vVar.Kind() == reflect.Ptr && vVar.Type().Elem().Name() == "" && vVar.Type().Elem().Kind() == reflect.Slice + if isMulti && vVar.Kind() == reflect.Ptr { + if vVar.IsNil() { + vVar.Set(reflect.New(vVar.Type().Elem())) + } + vVar = vVar.Elem() + } + if isMulti && blank { + vVar.Set(reflect.Zero(vVar.Type())) + return nil + } + if isMulti { + vVal = reflect.New(vVar.Type().Elem()).Elem() + } else { + vVal = vVar + } + isDeref := vVal.Type().Name() == "" && vVal.Type().Kind() == reflect.Ptr + isNew := isDeref && vVal.IsNil() + // vAddr is address of value to set (dereferenced & allocated as needed) + var vAddr reflect.Value + switch { + case isNew: + vAddr = reflect.New(vVal.Type().Elem()) + case isDeref && !isNew: + vAddr = vVal + default: + vAddr = vVal.Addr() + } + vAddrI := vAddr.Interface() + err, ok := error(nil), false + for _, s := range setters { + err = s(vAddrI, blank, value, t) + if err == nil { + ok = true + break + } + if err != errUnsupportedType { + return locErr{msg: err.Error(), loc: l} + } + } + if !ok { + // in case all setters returned errUnsupportedType + return locErr{msg: err.Error(), loc: l} + } + if isNew { // set reference if it was dereferenced and newly allocated + vVal.Set(vAddr) + } + if isMulti { // append if multi-valued + vVar.Set(reflect.Append(vVar, vVal)) + } + return nil +} diff --git a/vendor/gopkg.in/gcfg.v1/token/position.go b/vendor/gopkg.in/gcfg.v1/token/position.go new file mode 100644 index 000000000..fc45c1e76 --- /dev/null +++ b/vendor/gopkg.in/gcfg.v1/token/position.go @@ -0,0 +1,435 @@ +// Copyright 2010 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// TODO(gri) consider making this a separate package outside the go directory. + +package token + +import ( + "fmt" + "sort" + "sync" +) + +// ----------------------------------------------------------------------------- +// Positions + +// Position describes an arbitrary source position +// including the file, line, and column location. +// A Position is valid if the line number is > 0. +// +type Position struct { + Filename string // filename, if any + Offset int // offset, starting at 0 + Line int // line number, starting at 1 + Column int // column number, starting at 1 (character count) +} + +// IsValid returns true if the position is valid. +func (pos *Position) IsValid() bool { return pos.Line > 0 } + +// String returns a string in one of several forms: +// +// file:line:column valid position with file name +// line:column valid position without file name +// file invalid position with file name +// - invalid position without file name +// +func (pos Position) String() string { + s := pos.Filename + if pos.IsValid() { + if s != "" { + s += ":" + } + s += fmt.Sprintf("%d:%d", pos.Line, pos.Column) + } + if s == "" { + s = "-" + } + return s +} + +// Pos is a compact encoding of a source position within a file set. +// It can be converted into a Position for a more convenient, but much +// larger, representation. +// +// The Pos value for a given file is a number in the range [base, base+size], +// where base and size are specified when adding the file to the file set via +// AddFile. +// +// To create the Pos value for a specific source offset, first add +// the respective file to the current file set (via FileSet.AddFile) +// and then call File.Pos(offset) for that file. Given a Pos value p +// for a specific file set fset, the corresponding Position value is +// obtained by calling fset.Position(p). +// +// Pos values can be compared directly with the usual comparison operators: +// If two Pos values p and q are in the same file, comparing p and q is +// equivalent to comparing the respective source file offsets. If p and q +// are in different files, p < q is true if the file implied by p was added +// to the respective file set before the file implied by q. +// +type Pos int + +// The zero value for Pos is NoPos; there is no file and line information +// associated with it, and NoPos().IsValid() is false. NoPos is always +// smaller than any other Pos value. The corresponding Position value +// for NoPos is the zero value for Position. +// +const NoPos Pos = 0 + +// IsValid returns true if the position is valid. +func (p Pos) IsValid() bool { + return p != NoPos +} + +// ----------------------------------------------------------------------------- +// File + +// A File is a handle for a file belonging to a FileSet. +// A File has a name, size, and line offset table. +// +type File struct { + set *FileSet + name string // file name as provided to AddFile + base int // Pos value range for this file is [base...base+size] + size int // file size as provided to AddFile + + // lines and infos are protected by set.mutex + lines []int + infos []lineInfo +} + +// Name returns the file name of file f as registered with AddFile. +func (f *File) Name() string { + return f.name +} + +// Base returns the base offset of file f as registered with AddFile. +func (f *File) Base() int { + return f.base +} + +// Size returns the size of file f as registered with AddFile. +func (f *File) Size() int { + return f.size +} + +// LineCount returns the number of lines in file f. +func (f *File) LineCount() int { + f.set.mutex.RLock() + n := len(f.lines) + f.set.mutex.RUnlock() + return n +} + +// AddLine adds the line offset for a new line. +// The line offset must be larger than the offset for the previous line +// and smaller than the file size; otherwise the line offset is ignored. +// +func (f *File) AddLine(offset int) { + f.set.mutex.Lock() + if i := len(f.lines); (i == 0 || f.lines[i-1] < offset) && offset < f.size { + f.lines = append(f.lines, offset) + } + f.set.mutex.Unlock() +} + +// SetLines sets the line offsets for a file and returns true if successful. +// The line offsets are the offsets of the first character of each line; +// for instance for the content "ab\nc\n" the line offsets are {0, 3}. +// An empty file has an empty line offset table. +// Each line offset must be larger than the offset for the previous line +// and smaller than the file size; otherwise SetLines fails and returns +// false. +// +func (f *File) SetLines(lines []int) bool { + // verify validity of lines table + size := f.size + for i, offset := range lines { + if i > 0 && offset <= lines[i-1] || size <= offset { + return false + } + } + + // set lines table + f.set.mutex.Lock() + f.lines = lines + f.set.mutex.Unlock() + return true +} + +// SetLinesForContent sets the line offsets for the given file content. +func (f *File) SetLinesForContent(content []byte) { + var lines []int + line := 0 + for offset, b := range content { + if line >= 0 { + lines = append(lines, line) + } + line = -1 + if b == '\n' { + line = offset + 1 + } + } + + // set lines table + f.set.mutex.Lock() + f.lines = lines + f.set.mutex.Unlock() +} + +// A lineInfo object describes alternative file and line number +// information (such as provided via a //line comment in a .go +// file) for a given file offset. +type lineInfo struct { + // fields are exported to make them accessible to gob + Offset int + Filename string + Line int +} + +// AddLineInfo adds alternative file and line number information for +// a given file offset. The offset must be larger than the offset for +// the previously added alternative line info and smaller than the +// file size; otherwise the information is ignored. +// +// AddLineInfo is typically used to register alternative position +// information for //line filename:line comments in source files. +// +func (f *File) AddLineInfo(offset int, filename string, line int) { + f.set.mutex.Lock() + if i := len(f.infos); i == 0 || f.infos[i-1].Offset < offset && offset < f.size { + f.infos = append(f.infos, lineInfo{offset, filename, line}) + } + f.set.mutex.Unlock() +} + +// Pos returns the Pos value for the given file offset; +// the offset must be <= f.Size(). +// f.Pos(f.Offset(p)) == p. +// +func (f *File) Pos(offset int) Pos { + if offset > f.size { + panic("illegal file offset") + } + return Pos(f.base + offset) +} + +// Offset returns the offset for the given file position p; +// p must be a valid Pos value in that file. +// f.Offset(f.Pos(offset)) == offset. +// +func (f *File) Offset(p Pos) int { + if int(p) < f.base || int(p) > f.base+f.size { + panic("illegal Pos value") + } + return int(p) - f.base +} + +// Line returns the line number for the given file position p; +// p must be a Pos value in that file or NoPos. +// +func (f *File) Line(p Pos) int { + // TODO(gri) this can be implemented much more efficiently + return f.Position(p).Line +} + +func searchLineInfos(a []lineInfo, x int) int { + return sort.Search(len(a), func(i int) bool { return a[i].Offset > x }) - 1 +} + +// info returns the file name, line, and column number for a file offset. +func (f *File) info(offset int) (filename string, line, column int) { + filename = f.name + if i := searchInts(f.lines, offset); i >= 0 { + line, column = i+1, offset-f.lines[i]+1 + } + if len(f.infos) > 0 { + // almost no files have extra line infos + if i := searchLineInfos(f.infos, offset); i >= 0 { + alt := &f.infos[i] + filename = alt.Filename + if i := searchInts(f.lines, alt.Offset); i >= 0 { + line += alt.Line - i - 1 + } + } + } + return +} + +func (f *File) position(p Pos) (pos Position) { + offset := int(p) - f.base + pos.Offset = offset + pos.Filename, pos.Line, pos.Column = f.info(offset) + return +} + +// Position returns the Position value for the given file position p; +// p must be a Pos value in that file or NoPos. +// +func (f *File) Position(p Pos) (pos Position) { + if p != NoPos { + if int(p) < f.base || int(p) > f.base+f.size { + panic("illegal Pos value") + } + pos = f.position(p) + } + return +} + +// ----------------------------------------------------------------------------- +// FileSet + +// A FileSet represents a set of source files. +// Methods of file sets are synchronized; multiple goroutines +// may invoke them concurrently. +// +type FileSet struct { + mutex sync.RWMutex // protects the file set + base int // base offset for the next file + files []*File // list of files in the order added to the set + last *File // cache of last file looked up +} + +// NewFileSet creates a new file set. +func NewFileSet() *FileSet { + s := new(FileSet) + s.base = 1 // 0 == NoPos + return s +} + +// Base returns the minimum base offset that must be provided to +// AddFile when adding the next file. +// +func (s *FileSet) Base() int { + s.mutex.RLock() + b := s.base + s.mutex.RUnlock() + return b + +} + +// AddFile adds a new file with a given filename, base offset, and file size +// to the file set s and returns the file. Multiple files may have the same +// name. The base offset must not be smaller than the FileSet's Base(), and +// size must not be negative. +// +// Adding the file will set the file set's Base() value to base + size + 1 +// as the minimum base value for the next file. The following relationship +// exists between a Pos value p for a given file offset offs: +// +// int(p) = base + offs +// +// with offs in the range [0, size] and thus p in the range [base, base+size]. +// For convenience, File.Pos may be used to create file-specific position +// values from a file offset. +// +func (s *FileSet) AddFile(filename string, base, size int) *File { + s.mutex.Lock() + defer s.mutex.Unlock() + if base < s.base || size < 0 { + panic("illegal base or size") + } + // base >= s.base && size >= 0 + f := &File{s, filename, base, size, []int{0}, nil} + base += size + 1 // +1 because EOF also has a position + if base < 0 { + panic("token.Pos offset overflow (> 2G of source code in file set)") + } + // add the file to the file set + s.base = base + s.files = append(s.files, f) + s.last = f + return f +} + +// Iterate calls f for the files in the file set in the order they were added +// until f returns false. +// +func (s *FileSet) Iterate(f func(*File) bool) { + for i := 0; ; i++ { + var file *File + s.mutex.RLock() + if i < len(s.files) { + file = s.files[i] + } + s.mutex.RUnlock() + if file == nil || !f(file) { + break + } + } +} + +func searchFiles(a []*File, x int) int { + return sort.Search(len(a), func(i int) bool { return a[i].base > x }) - 1 +} + +func (s *FileSet) file(p Pos) *File { + // common case: p is in last file + if f := s.last; f != nil && f.base <= int(p) && int(p) <= f.base+f.size { + return f + } + // p is not in last file - search all files + if i := searchFiles(s.files, int(p)); i >= 0 { + f := s.files[i] + // f.base <= int(p) by definition of searchFiles + if int(p) <= f.base+f.size { + s.last = f + return f + } + } + return nil +} + +// File returns the file that contains the position p. +// If no such file is found (for instance for p == NoPos), +// the result is nil. +// +func (s *FileSet) File(p Pos) (f *File) { + if p != NoPos { + s.mutex.RLock() + f = s.file(p) + s.mutex.RUnlock() + } + return +} + +// Position converts a Pos in the fileset into a general Position. +func (s *FileSet) Position(p Pos) (pos Position) { + if p != NoPos { + s.mutex.RLock() + if f := s.file(p); f != nil { + pos = f.position(p) + } + s.mutex.RUnlock() + } + return +} + +// ----------------------------------------------------------------------------- +// Helper functions + +func searchInts(a []int, x int) int { + // This function body is a manually inlined version of: + // + // return sort.Search(len(a), func(i int) bool { return a[i] > x }) - 1 + // + // With better compiler optimizations, this may not be needed in the + // future, but at the moment this change improves the go/printer + // benchmark performance by ~30%. This has a direct impact on the + // speed of gofmt and thus seems worthwhile (2011-04-29). + // TODO(gri): Remove this when compilers have caught up. + i, j := 0, len(a) + for i < j { + h := i + (j-i)/2 // avoid overflow when computing h + // i ≤ h < j + if a[h] <= x { + i = h + 1 + } else { + j = h + } + } + return i - 1 +} diff --git a/vendor/gopkg.in/gcfg.v1/token/serialize.go b/vendor/gopkg.in/gcfg.v1/token/serialize.go new file mode 100644 index 000000000..4adc8f9e3 --- /dev/null +++ b/vendor/gopkg.in/gcfg.v1/token/serialize.go @@ -0,0 +1,56 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package token + +type serializedFile struct { + // fields correspond 1:1 to fields with same (lower-case) name in File + Name string + Base int + Size int + Lines []int + Infos []lineInfo +} + +type serializedFileSet struct { + Base int + Files []serializedFile +} + +// Read calls decode to deserialize a file set into s; s must not be nil. +func (s *FileSet) Read(decode func(interface{}) error) error { + var ss serializedFileSet + if err := decode(&ss); err != nil { + return err + } + + s.mutex.Lock() + s.base = ss.Base + files := make([]*File, len(ss.Files)) + for i := 0; i < len(ss.Files); i++ { + f := &ss.Files[i] + files[i] = &File{s, f.Name, f.Base, f.Size, f.Lines, f.Infos} + } + s.files = files + s.last = nil + s.mutex.Unlock() + + return nil +} + +// Write calls encode to serialize the file set s. +func (s *FileSet) Write(encode func(interface{}) error) error { + var ss serializedFileSet + + s.mutex.Lock() + ss.Base = s.base + files := make([]serializedFile, len(s.files)) + for i, f := range s.files { + files[i] = serializedFile{f.name, f.base, f.size, f.lines, f.infos} + } + ss.Files = files + s.mutex.Unlock() + + return encode(ss) +} diff --git a/vendor/gopkg.in/gcfg.v1/token/token.go b/vendor/gopkg.in/gcfg.v1/token/token.go new file mode 100644 index 000000000..b3c7c83fa --- /dev/null +++ b/vendor/gopkg.in/gcfg.v1/token/token.go @@ -0,0 +1,83 @@ +// Copyright 2009 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package token defines constants representing the lexical tokens of the gcfg +// configuration syntax and basic operations on tokens (printing, predicates). +// +// Note that the API for the token package may change to accommodate new +// features or implementation changes in gcfg. +// +package token + +import "strconv" + +// Token is the set of lexical tokens of the gcfg configuration syntax. +type Token int + +// The list of tokens. +const ( + // Special tokens + ILLEGAL Token = iota + EOF + COMMENT + + literal_beg + // Identifiers and basic type literals + // (these tokens stand for classes of literals) + IDENT // section-name, variable-name + STRING // "subsection-name", variable value + literal_end + + operator_beg + // Operators and delimiters + ASSIGN // = + LBRACK // [ + RBRACK // ] + EOL // \n + operator_end +) + +var tokens = [...]string{ + ILLEGAL: "ILLEGAL", + + EOF: "EOF", + COMMENT: "COMMENT", + + IDENT: "IDENT", + STRING: "STRING", + + ASSIGN: "=", + LBRACK: "[", + RBRACK: "]", + EOL: "\n", +} + +// String returns the string corresponding to the token tok. +// For operators and delimiters, the string is the actual token character +// sequence (e.g., for the token ASSIGN, the string is "="). For all other +// tokens the string corresponds to the token constant name (e.g. for the +// token IDENT, the string is "IDENT"). +// +func (tok Token) String() string { + s := "" + if 0 <= tok && tok < Token(len(tokens)) { + s = tokens[tok] + } + if s == "" { + s = "token(" + strconv.Itoa(int(tok)) + ")" + } + return s +} + +// Predicates + +// IsLiteral returns true for tokens corresponding to identifiers +// and basic type literals; it returns false otherwise. +// +func (tok Token) IsLiteral() bool { return literal_beg < tok && tok < literal_end } + +// IsOperator returns true for tokens corresponding to operators and +// delimiters; it returns false otherwise. +// +func (tok Token) IsOperator() bool { return operator_beg < tok && tok < operator_end } diff --git a/vendor/gopkg.in/gcfg.v1/types/bool.go b/vendor/gopkg.in/gcfg.v1/types/bool.go new file mode 100644 index 000000000..8dcae0d8c --- /dev/null +++ b/vendor/gopkg.in/gcfg.v1/types/bool.go @@ -0,0 +1,23 @@ +package types + +// BoolValues defines the name and value mappings for ParseBool. +var BoolValues = map[string]interface{}{ + "true": true, "yes": true, "on": true, "1": true, + "false": false, "no": false, "off": false, "0": false, +} + +var boolParser = func() *EnumParser { + ep := &EnumParser{} + ep.AddVals(BoolValues) + return ep +}() + +// ParseBool parses bool values according to the definitions in BoolValues. +// Parsing is case-insensitive. +func ParseBool(s string) (bool, error) { + v, err := boolParser.Parse(s) + if err != nil { + return false, err + } + return v.(bool), nil +} diff --git a/vendor/gopkg.in/gcfg.v1/types/doc.go b/vendor/gopkg.in/gcfg.v1/types/doc.go new file mode 100644 index 000000000..9f9c345f6 --- /dev/null +++ b/vendor/gopkg.in/gcfg.v1/types/doc.go @@ -0,0 +1,4 @@ +// Package types defines helpers for type conversions. +// +// The API for this package is not finalized yet. +package types diff --git a/vendor/gopkg.in/gcfg.v1/types/enum.go b/vendor/gopkg.in/gcfg.v1/types/enum.go new file mode 100644 index 000000000..1a0c7ef45 --- /dev/null +++ b/vendor/gopkg.in/gcfg.v1/types/enum.go @@ -0,0 +1,44 @@ +package types + +import ( + "fmt" + "reflect" + "strings" +) + +// EnumParser parses "enum" values; i.e. a predefined set of strings to +// predefined values. +type EnumParser struct { + Type string // type name; if not set, use type of first value added + CaseMatch bool // if true, matching of strings is case-sensitive + // PrefixMatch bool + vals map[string]interface{} +} + +// AddVals adds strings and values to an EnumParser. +func (ep *EnumParser) AddVals(vals map[string]interface{}) { + if ep.vals == nil { + ep.vals = make(map[string]interface{}) + } + for k, v := range vals { + if ep.Type == "" { + ep.Type = reflect.TypeOf(v).Name() + } + if !ep.CaseMatch { + k = strings.ToLower(k) + } + ep.vals[k] = v + } +} + +// Parse parses the string and returns the value or an error. +func (ep EnumParser) Parse(s string) (interface{}, error) { + if !ep.CaseMatch { + s = strings.ToLower(s) + } + v, ok := ep.vals[s] + if !ok { + return false, fmt.Errorf("failed to parse %s %#q", ep.Type, s) + } + return v, nil +} diff --git a/vendor/gopkg.in/gcfg.v1/types/int.go b/vendor/gopkg.in/gcfg.v1/types/int.go new file mode 100644 index 000000000..af7e75c12 --- /dev/null +++ b/vendor/gopkg.in/gcfg.v1/types/int.go @@ -0,0 +1,86 @@ +package types + +import ( + "fmt" + "strings" +) + +// An IntMode is a mode for parsing integer values, representing a set of +// accepted bases. +type IntMode uint8 + +// IntMode values for ParseInt; can be combined using binary or. +const ( + Dec IntMode = 1 << iota + Hex + Oct +) + +// String returns a string representation of IntMode; e.g. `IntMode(Dec|Hex)`. +func (m IntMode) String() string { + var modes []string + if m&Dec != 0 { + modes = append(modes, "Dec") + } + if m&Hex != 0 { + modes = append(modes, "Hex") + } + if m&Oct != 0 { + modes = append(modes, "Oct") + } + return "IntMode(" + strings.Join(modes, "|") + ")" +} + +var errIntAmbig = fmt.Errorf("ambiguous integer value; must include '0' prefix") + +func prefix0(val string) bool { + return strings.HasPrefix(val, "0") || strings.HasPrefix(val, "-0") +} + +func prefix0x(val string) bool { + return strings.HasPrefix(val, "0x") || strings.HasPrefix(val, "-0x") +} + +// ParseInt parses val using mode into intptr, which must be a pointer to an +// integer kind type. Non-decimal value require prefix `0` or `0x` in the cases +// when mode permits ambiguity of base; otherwise the prefix can be omitted. +func ParseInt(intptr interface{}, val string, mode IntMode) error { + val = strings.TrimSpace(val) + verb := byte(0) + switch mode { + case Dec: + verb = 'd' + case Dec + Hex: + if prefix0x(val) { + verb = 'v' + } else { + verb = 'd' + } + case Dec + Oct: + if prefix0(val) && !prefix0x(val) { + verb = 'v' + } else { + verb = 'd' + } + case Dec + Hex + Oct: + verb = 'v' + case Hex: + if prefix0x(val) { + verb = 'v' + } else { + verb = 'x' + } + case Oct: + verb = 'o' + case Hex + Oct: + if prefix0(val) { + verb = 'v' + } else { + return errIntAmbig + } + } + if verb == 0 { + panic("unsupported mode") + } + return ScanFully(intptr, val, verb) +} diff --git a/vendor/gopkg.in/gcfg.v1/types/scan.go b/vendor/gopkg.in/gcfg.v1/types/scan.go new file mode 100644 index 000000000..db2f6ed3c --- /dev/null +++ b/vendor/gopkg.in/gcfg.v1/types/scan.go @@ -0,0 +1,23 @@ +package types + +import ( + "fmt" + "io" + "reflect" +) + +// ScanFully uses fmt.Sscanf with verb to fully scan val into ptr. +func ScanFully(ptr interface{}, val string, verb byte) error { + t := reflect.ValueOf(ptr).Elem().Type() + // attempt to read extra bytes to make sure the value is consumed + var b []byte + n, err := fmt.Sscanf(val, "%"+string(verb)+"%s", ptr, &b) + switch { + case n < 1 || n == 1 && err != io.EOF: + return fmt.Errorf("failed to parse %q as %v: %v", val, t, err) + case n > 1: + return fmt.Errorf("failed to parse %q as %v: extra characters %q", val, t, string(b)) + } + // n == 1 && err == io.EOF + return nil +} diff --git a/vendor/gopkg.in/natefinch/lumberjack.v2/.gitignore b/vendor/gopkg.in/natefinch/lumberjack.v2/.gitignore new file mode 100644 index 000000000..836562412 --- /dev/null +++ b/vendor/gopkg.in/natefinch/lumberjack.v2/.gitignore @@ -0,0 +1,23 @@ +# Compiled Object files, Static and Dynamic libs (Shared Objects) +*.o +*.a +*.so + +# Folders +_obj +_test + +# Architecture specific extensions/prefixes +*.[568vq] +[568vq].out + +*.cgo1.go +*.cgo2.c +_cgo_defun.c +_cgo_gotypes.go +_cgo_export.* + +_testmain.go + +*.exe +*.test diff --git a/vendor/gopkg.in/natefinch/lumberjack.v2/.travis.yml b/vendor/gopkg.in/natefinch/lumberjack.v2/.travis.yml new file mode 100644 index 000000000..21166f5c7 --- /dev/null +++ b/vendor/gopkg.in/natefinch/lumberjack.v2/.travis.yml @@ -0,0 +1,11 @@ +language: go + +go: + - tip + - 1.15.x + - 1.14.x + - 1.13.x + - 1.12.x + +env: + - GO111MODULE=on diff --git a/vendor/gopkg.in/natefinch/lumberjack.v2/LICENSE b/vendor/gopkg.in/natefinch/lumberjack.v2/LICENSE new file mode 100644 index 000000000..c3d4cc307 --- /dev/null +++ b/vendor/gopkg.in/natefinch/lumberjack.v2/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2014 Nate Finch + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. \ No newline at end of file diff --git a/vendor/gopkg.in/natefinch/lumberjack.v2/README.md b/vendor/gopkg.in/natefinch/lumberjack.v2/README.md new file mode 100644 index 000000000..060eae52a --- /dev/null +++ b/vendor/gopkg.in/natefinch/lumberjack.v2/README.md @@ -0,0 +1,179 @@ +# lumberjack [![GoDoc](https://godoc.org/gopkg.in/natefinch/lumberjack.v2?status.png)](https://godoc.org/gopkg.in/natefinch/lumberjack.v2) [![Build Status](https://travis-ci.org/natefinch/lumberjack.svg?branch=v2.0)](https://travis-ci.org/natefinch/lumberjack) [![Build status](https://ci.appveyor.com/api/projects/status/00gchpxtg4gkrt5d)](https://ci.appveyor.com/project/natefinch/lumberjack) [![Coverage Status](https://coveralls.io/repos/natefinch/lumberjack/badge.svg?branch=v2.0)](https://coveralls.io/r/natefinch/lumberjack?branch=v2.0) + +### Lumberjack is a Go package for writing logs to rolling files. + +Package lumberjack provides a rolling logger. + +Note that this is v2.0 of lumberjack, and should be imported using gopkg.in +thusly: + + import "gopkg.in/natefinch/lumberjack.v2" + +The package name remains simply lumberjack, and the code resides at +https://github.com/natefinch/lumberjack under the v2.0 branch. + +Lumberjack is intended to be one part of a logging infrastructure. +It is not an all-in-one solution, but instead is a pluggable +component at the bottom of the logging stack that simply controls the files +to which logs are written. + +Lumberjack plays well with any logging package that can write to an +io.Writer, including the standard library's log package. + +Lumberjack assumes that only one process is writing to the output files. +Using the same lumberjack configuration from multiple processes on the same +machine will result in improper behavior. + + +**Example** + +To use lumberjack with the standard library's log package, just pass it into the SetOutput function when your application starts. + +Code: + +```go +log.SetOutput(&lumberjack.Logger{ + Filename: "/var/log/myapp/foo.log", + MaxSize: 500, // megabytes + MaxBackups: 3, + MaxAge: 28, //days + Compress: true, // disabled by default +}) +``` + + + +## type Logger +``` go +type Logger struct { + // Filename is the file to write logs to. Backup log files will be retained + // in the same directory. It uses -lumberjack.log in + // os.TempDir() if empty. + Filename string `json:"filename" yaml:"filename"` + + // MaxSize is the maximum size in megabytes of the log file before it gets + // rotated. It defaults to 100 megabytes. + MaxSize int `json:"maxsize" yaml:"maxsize"` + + // MaxAge is the maximum number of days to retain old log files based on the + // timestamp encoded in their filename. Note that a day is defined as 24 + // hours and may not exactly correspond to calendar days due to daylight + // savings, leap seconds, etc. The default is not to remove old log files + // based on age. + MaxAge int `json:"maxage" yaml:"maxage"` + + // MaxBackups is the maximum number of old log files to retain. The default + // is to retain all old log files (though MaxAge may still cause them to get + // deleted.) + MaxBackups int `json:"maxbackups" yaml:"maxbackups"` + + // LocalTime determines if the time used for formatting the timestamps in + // backup files is the computer's local time. The default is to use UTC + // time. + LocalTime bool `json:"localtime" yaml:"localtime"` + + // Compress determines if the rotated log files should be compressed + // using gzip. The default is not to perform compression. + Compress bool `json:"compress" yaml:"compress"` + // contains filtered or unexported fields +} +``` +Logger is an io.WriteCloser that writes to the specified filename. + +Logger opens or creates the logfile on first Write. If the file exists and +is less than MaxSize megabytes, lumberjack will open and append to that file. +If the file exists and its size is >= MaxSize megabytes, the file is renamed +by putting the current time in a timestamp in the name immediately before the +file's extension (or the end of the filename if there's no extension). A new +log file is then created using original filename. + +Whenever a write would cause the current log file exceed MaxSize megabytes, +the current file is closed, renamed, and a new log file created with the +original name. Thus, the filename you give Logger is always the "current" log +file. + +Backups use the log file name given to Logger, in the form `name-timestamp.ext` +where name is the filename without the extension, timestamp is the time at which +the log was rotated formatted with the time.Time format of +`2006-01-02T15-04-05.000` and the extension is the original extension. For +example, if your Logger.Filename is `/var/log/foo/server.log`, a backup created +at 6:30pm on Nov 11 2016 would use the filename +`/var/log/foo/server-2016-11-04T18-30-00.000.log` + +### Cleaning Up Old Log Files +Whenever a new logfile gets created, old log files may be deleted. The most +recent files according to the encoded timestamp will be retained, up to a +number equal to MaxBackups (or all of them if MaxBackups is 0). Any files +with an encoded timestamp older than MaxAge days are deleted, regardless of +MaxBackups. Note that the time encoded in the timestamp is the rotation +time, which may differ from the last time that file was written to. + +If MaxBackups and MaxAge are both 0, no old log files will be deleted. + + + + + + + + + + + +### func (\*Logger) Close +``` go +func (l *Logger) Close() error +``` +Close implements io.Closer, and closes the current logfile. + + + +### func (\*Logger) Rotate +``` go +func (l *Logger) Rotate() error +``` +Rotate causes Logger to close the existing log file and immediately create a +new one. This is a helper function for applications that want to initiate +rotations outside of the normal rotation rules, such as in response to +SIGHUP. After rotating, this initiates a cleanup of old log files according +to the normal rules. + +**Example** + +Example of how to rotate in response to SIGHUP. + +Code: + +```go +l := &lumberjack.Logger{} +log.SetOutput(l) +c := make(chan os.Signal, 1) +signal.Notify(c, syscall.SIGHUP) + +go func() { + for { + <-c + l.Rotate() + } +}() +``` + +### func (\*Logger) Write +``` go +func (l *Logger) Write(p []byte) (n int, err error) +``` +Write implements io.Writer. If a write would cause the log file to be larger +than MaxSize, the file is closed, renamed to include a timestamp of the +current time, and a new log file is created using the original log file name. +If the length of the write is greater than MaxSize, an error is returned. + + + + + + + + + +- - - +Generated by [godoc2md](http://godoc.org/github.com/davecheney/godoc2md) diff --git a/vendor/gopkg.in/natefinch/lumberjack.v2/chown.go b/vendor/gopkg.in/natefinch/lumberjack.v2/chown.go new file mode 100644 index 000000000..11d066972 --- /dev/null +++ b/vendor/gopkg.in/natefinch/lumberjack.v2/chown.go @@ -0,0 +1,11 @@ +// +build !linux + +package lumberjack + +import ( + "os" +) + +func chown(_ string, _ os.FileInfo) error { + return nil +} diff --git a/vendor/gopkg.in/natefinch/lumberjack.v2/chown_linux.go b/vendor/gopkg.in/natefinch/lumberjack.v2/chown_linux.go new file mode 100644 index 000000000..465f56927 --- /dev/null +++ b/vendor/gopkg.in/natefinch/lumberjack.v2/chown_linux.go @@ -0,0 +1,19 @@ +package lumberjack + +import ( + "os" + "syscall" +) + +// osChown is a var so we can mock it out during tests. +var osChown = os.Chown + +func chown(name string, info os.FileInfo) error { + f, err := os.OpenFile(name, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, info.Mode()) + if err != nil { + return err + } + f.Close() + stat := info.Sys().(*syscall.Stat_t) + return osChown(name, int(stat.Uid), int(stat.Gid)) +} diff --git a/vendor/gopkg.in/natefinch/lumberjack.v2/lumberjack.go b/vendor/gopkg.in/natefinch/lumberjack.v2/lumberjack.go new file mode 100644 index 000000000..3447cdc05 --- /dev/null +++ b/vendor/gopkg.in/natefinch/lumberjack.v2/lumberjack.go @@ -0,0 +1,541 @@ +// Package lumberjack provides a rolling logger. +// +// Note that this is v2.0 of lumberjack, and should be imported using gopkg.in +// thusly: +// +// import "gopkg.in/natefinch/lumberjack.v2" +// +// The package name remains simply lumberjack, and the code resides at +// https://github.com/natefinch/lumberjack under the v2.0 branch. +// +// Lumberjack is intended to be one part of a logging infrastructure. +// It is not an all-in-one solution, but instead is a pluggable +// component at the bottom of the logging stack that simply controls the files +// to which logs are written. +// +// Lumberjack plays well with any logging package that can write to an +// io.Writer, including the standard library's log package. +// +// Lumberjack assumes that only one process is writing to the output files. +// Using the same lumberjack configuration from multiple processes on the same +// machine will result in improper behavior. +package lumberjack + +import ( + "compress/gzip" + "errors" + "fmt" + "io" + "io/ioutil" + "os" + "path/filepath" + "sort" + "strings" + "sync" + "time" +) + +const ( + backupTimeFormat = "2006-01-02T15-04-05.000" + compressSuffix = ".gz" + defaultMaxSize = 100 +) + +// ensure we always implement io.WriteCloser +var _ io.WriteCloser = (*Logger)(nil) + +// Logger is an io.WriteCloser that writes to the specified filename. +// +// Logger opens or creates the logfile on first Write. If the file exists and +// is less than MaxSize megabytes, lumberjack will open and append to that file. +// If the file exists and its size is >= MaxSize megabytes, the file is renamed +// by putting the current time in a timestamp in the name immediately before the +// file's extension (or the end of the filename if there's no extension). A new +// log file is then created using original filename. +// +// Whenever a write would cause the current log file exceed MaxSize megabytes, +// the current file is closed, renamed, and a new log file created with the +// original name. Thus, the filename you give Logger is always the "current" log +// file. +// +// Backups use the log file name given to Logger, in the form +// `name-timestamp.ext` where name is the filename without the extension, +// timestamp is the time at which the log was rotated formatted with the +// time.Time format of `2006-01-02T15-04-05.000` and the extension is the +// original extension. For example, if your Logger.Filename is +// `/var/log/foo/server.log`, a backup created at 6:30pm on Nov 11 2016 would +// use the filename `/var/log/foo/server-2016-11-04T18-30-00.000.log` +// +// Cleaning Up Old Log Files +// +// Whenever a new logfile gets created, old log files may be deleted. The most +// recent files according to the encoded timestamp will be retained, up to a +// number equal to MaxBackups (or all of them if MaxBackups is 0). Any files +// with an encoded timestamp older than MaxAge days are deleted, regardless of +// MaxBackups. Note that the time encoded in the timestamp is the rotation +// time, which may differ from the last time that file was written to. +// +// If MaxBackups and MaxAge are both 0, no old log files will be deleted. +type Logger struct { + // Filename is the file to write logs to. Backup log files will be retained + // in the same directory. It uses -lumberjack.log in + // os.TempDir() if empty. + Filename string `json:"filename" yaml:"filename"` + + // MaxSize is the maximum size in megabytes of the log file before it gets + // rotated. It defaults to 100 megabytes. + MaxSize int `json:"maxsize" yaml:"maxsize"` + + // MaxAge is the maximum number of days to retain old log files based on the + // timestamp encoded in their filename. Note that a day is defined as 24 + // hours and may not exactly correspond to calendar days due to daylight + // savings, leap seconds, etc. The default is not to remove old log files + // based on age. + MaxAge int `json:"maxage" yaml:"maxage"` + + // MaxBackups is the maximum number of old log files to retain. The default + // is to retain all old log files (though MaxAge may still cause them to get + // deleted.) + MaxBackups int `json:"maxbackups" yaml:"maxbackups"` + + // LocalTime determines if the time used for formatting the timestamps in + // backup files is the computer's local time. The default is to use UTC + // time. + LocalTime bool `json:"localtime" yaml:"localtime"` + + // Compress determines if the rotated log files should be compressed + // using gzip. The default is not to perform compression. + Compress bool `json:"compress" yaml:"compress"` + + size int64 + file *os.File + mu sync.Mutex + + millCh chan bool + startMill sync.Once +} + +var ( + // currentTime exists so it can be mocked out by tests. + currentTime = time.Now + + // os_Stat exists so it can be mocked out by tests. + osStat = os.Stat + + // megabyte is the conversion factor between MaxSize and bytes. It is a + // variable so tests can mock it out and not need to write megabytes of data + // to disk. + megabyte = 1024 * 1024 +) + +// Write implements io.Writer. If a write would cause the log file to be larger +// than MaxSize, the file is closed, renamed to include a timestamp of the +// current time, and a new log file is created using the original log file name. +// If the length of the write is greater than MaxSize, an error is returned. +func (l *Logger) Write(p []byte) (n int, err error) { + l.mu.Lock() + defer l.mu.Unlock() + + writeLen := int64(len(p)) + if writeLen > l.max() { + return 0, fmt.Errorf( + "write length %d exceeds maximum file size %d", writeLen, l.max(), + ) + } + + if l.file == nil { + if err = l.openExistingOrNew(len(p)); err != nil { + return 0, err + } + } + + if l.size+writeLen > l.max() { + if err := l.rotate(); err != nil { + return 0, err + } + } + + n, err = l.file.Write(p) + l.size += int64(n) + + return n, err +} + +// Close implements io.Closer, and closes the current logfile. +func (l *Logger) Close() error { + l.mu.Lock() + defer l.mu.Unlock() + return l.close() +} + +// close closes the file if it is open. +func (l *Logger) close() error { + if l.file == nil { + return nil + } + err := l.file.Close() + l.file = nil + return err +} + +// Rotate causes Logger to close the existing log file and immediately create a +// new one. This is a helper function for applications that want to initiate +// rotations outside of the normal rotation rules, such as in response to +// SIGHUP. After rotating, this initiates compression and removal of old log +// files according to the configuration. +func (l *Logger) Rotate() error { + l.mu.Lock() + defer l.mu.Unlock() + return l.rotate() +} + +// rotate closes the current file, moves it aside with a timestamp in the name, +// (if it exists), opens a new file with the original filename, and then runs +// post-rotation processing and removal. +func (l *Logger) rotate() error { + if err := l.close(); err != nil { + return err + } + if err := l.openNew(); err != nil { + return err + } + l.mill() + return nil +} + +// openNew opens a new log file for writing, moving any old log file out of the +// way. This methods assumes the file has already been closed. +func (l *Logger) openNew() error { + err := os.MkdirAll(l.dir(), 0755) + if err != nil { + return fmt.Errorf("can't make directories for new logfile: %s", err) + } + + name := l.filename() + mode := os.FileMode(0600) + info, err := osStat(name) + if err == nil { + // Copy the mode off the old logfile. + mode = info.Mode() + // move the existing file + newname := backupName(name, l.LocalTime) + if err := os.Rename(name, newname); err != nil { + return fmt.Errorf("can't rename log file: %s", err) + } + + // this is a no-op anywhere but linux + if err := chown(name, info); err != nil { + return err + } + } + + // we use truncate here because this should only get called when we've moved + // the file ourselves. if someone else creates the file in the meantime, + // just wipe out the contents. + f, err := os.OpenFile(name, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, mode) + if err != nil { + return fmt.Errorf("can't open new logfile: %s", err) + } + l.file = f + l.size = 0 + return nil +} + +// backupName creates a new filename from the given name, inserting a timestamp +// between the filename and the extension, using the local time if requested +// (otherwise UTC). +func backupName(name string, local bool) string { + dir := filepath.Dir(name) + filename := filepath.Base(name) + ext := filepath.Ext(filename) + prefix := filename[:len(filename)-len(ext)] + t := currentTime() + if !local { + t = t.UTC() + } + + timestamp := t.Format(backupTimeFormat) + return filepath.Join(dir, fmt.Sprintf("%s-%s%s", prefix, timestamp, ext)) +} + +// openExistingOrNew opens the logfile if it exists and if the current write +// would not put it over MaxSize. If there is no such file or the write would +// put it over the MaxSize, a new file is created. +func (l *Logger) openExistingOrNew(writeLen int) error { + l.mill() + + filename := l.filename() + info, err := osStat(filename) + if os.IsNotExist(err) { + return l.openNew() + } + if err != nil { + return fmt.Errorf("error getting log file info: %s", err) + } + + if info.Size()+int64(writeLen) >= l.max() { + return l.rotate() + } + + file, err := os.OpenFile(filename, os.O_APPEND|os.O_WRONLY, 0644) + if err != nil { + // if we fail to open the old log file for some reason, just ignore + // it and open a new log file. + return l.openNew() + } + l.file = file + l.size = info.Size() + return nil +} + +// filename generates the name of the logfile from the current time. +func (l *Logger) filename() string { + if l.Filename != "" { + return l.Filename + } + name := filepath.Base(os.Args[0]) + "-lumberjack.log" + return filepath.Join(os.TempDir(), name) +} + +// millRunOnce performs compression and removal of stale log files. +// Log files are compressed if enabled via configuration and old log +// files are removed, keeping at most l.MaxBackups files, as long as +// none of them are older than MaxAge. +func (l *Logger) millRunOnce() error { + if l.MaxBackups == 0 && l.MaxAge == 0 && !l.Compress { + return nil + } + + files, err := l.oldLogFiles() + if err != nil { + return err + } + + var compress, remove []logInfo + + if l.MaxBackups > 0 && l.MaxBackups < len(files) { + preserved := make(map[string]bool) + var remaining []logInfo + for _, f := range files { + // Only count the uncompressed log file or the + // compressed log file, not both. + fn := f.Name() + if strings.HasSuffix(fn, compressSuffix) { + fn = fn[:len(fn)-len(compressSuffix)] + } + preserved[fn] = true + + if len(preserved) > l.MaxBackups { + remove = append(remove, f) + } else { + remaining = append(remaining, f) + } + } + files = remaining + } + if l.MaxAge > 0 { + diff := time.Duration(int64(24*time.Hour) * int64(l.MaxAge)) + cutoff := currentTime().Add(-1 * diff) + + var remaining []logInfo + for _, f := range files { + if f.timestamp.Before(cutoff) { + remove = append(remove, f) + } else { + remaining = append(remaining, f) + } + } + files = remaining + } + + if l.Compress { + for _, f := range files { + if !strings.HasSuffix(f.Name(), compressSuffix) { + compress = append(compress, f) + } + } + } + + for _, f := range remove { + errRemove := os.Remove(filepath.Join(l.dir(), f.Name())) + if err == nil && errRemove != nil { + err = errRemove + } + } + for _, f := range compress { + fn := filepath.Join(l.dir(), f.Name()) + errCompress := compressLogFile(fn, fn+compressSuffix) + if err == nil && errCompress != nil { + err = errCompress + } + } + + return err +} + +// millRun runs in a goroutine to manage post-rotation compression and removal +// of old log files. +func (l *Logger) millRun() { + for range l.millCh { + // what am I going to do, log this? + _ = l.millRunOnce() + } +} + +// mill performs post-rotation compression and removal of stale log files, +// starting the mill goroutine if necessary. +func (l *Logger) mill() { + l.startMill.Do(func() { + l.millCh = make(chan bool, 1) + go l.millRun() + }) + select { + case l.millCh <- true: + default: + } +} + +// oldLogFiles returns the list of backup log files stored in the same +// directory as the current log file, sorted by ModTime +func (l *Logger) oldLogFiles() ([]logInfo, error) { + files, err := ioutil.ReadDir(l.dir()) + if err != nil { + return nil, fmt.Errorf("can't read log file directory: %s", err) + } + logFiles := []logInfo{} + + prefix, ext := l.prefixAndExt() + + for _, f := range files { + if f.IsDir() { + continue + } + if t, err := l.timeFromName(f.Name(), prefix, ext); err == nil { + logFiles = append(logFiles, logInfo{t, f}) + continue + } + if t, err := l.timeFromName(f.Name(), prefix, ext+compressSuffix); err == nil { + logFiles = append(logFiles, logInfo{t, f}) + continue + } + // error parsing means that the suffix at the end was not generated + // by lumberjack, and therefore it's not a backup file. + } + + sort.Sort(byFormatTime(logFiles)) + + return logFiles, nil +} + +// timeFromName extracts the formatted time from the filename by stripping off +// the filename's prefix and extension. This prevents someone's filename from +// confusing time.parse. +func (l *Logger) timeFromName(filename, prefix, ext string) (time.Time, error) { + if !strings.HasPrefix(filename, prefix) { + return time.Time{}, errors.New("mismatched prefix") + } + if !strings.HasSuffix(filename, ext) { + return time.Time{}, errors.New("mismatched extension") + } + ts := filename[len(prefix) : len(filename)-len(ext)] + return time.Parse(backupTimeFormat, ts) +} + +// max returns the maximum size in bytes of log files before rolling. +func (l *Logger) max() int64 { + if l.MaxSize == 0 { + return int64(defaultMaxSize * megabyte) + } + return int64(l.MaxSize) * int64(megabyte) +} + +// dir returns the directory for the current filename. +func (l *Logger) dir() string { + return filepath.Dir(l.filename()) +} + +// prefixAndExt returns the filename part and extension part from the Logger's +// filename. +func (l *Logger) prefixAndExt() (prefix, ext string) { + filename := filepath.Base(l.filename()) + ext = filepath.Ext(filename) + prefix = filename[:len(filename)-len(ext)] + "-" + return prefix, ext +} + +// compressLogFile compresses the given log file, removing the +// uncompressed log file if successful. +func compressLogFile(src, dst string) (err error) { + f, err := os.Open(src) + if err != nil { + return fmt.Errorf("failed to open log file: %v", err) + } + defer f.Close() + + fi, err := osStat(src) + if err != nil { + return fmt.Errorf("failed to stat log file: %v", err) + } + + if err := chown(dst, fi); err != nil { + return fmt.Errorf("failed to chown compressed log file: %v", err) + } + + // If this file already exists, we presume it was created by + // a previous attempt to compress the log file. + gzf, err := os.OpenFile(dst, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, fi.Mode()) + if err != nil { + return fmt.Errorf("failed to open compressed log file: %v", err) + } + defer gzf.Close() + + gz := gzip.NewWriter(gzf) + + defer func() { + if err != nil { + os.Remove(dst) + err = fmt.Errorf("failed to compress log file: %v", err) + } + }() + + if _, err := io.Copy(gz, f); err != nil { + return err + } + if err := gz.Close(); err != nil { + return err + } + if err := gzf.Close(); err != nil { + return err + } + + if err := f.Close(); err != nil { + return err + } + if err := os.Remove(src); err != nil { + return err + } + + return nil +} + +// logInfo is a convenience struct to return the filename and its embedded +// timestamp. +type logInfo struct { + timestamp time.Time + os.FileInfo +} + +// byFormatTime sorts by newest time formatted in the name. +type byFormatTime []logInfo + +func (b byFormatTime) Less(i, j int) bool { + return b[i].timestamp.After(b[j].timestamp) +} + +func (b byFormatTime) Swap(i, j int) { + b[i], b[j] = b[j], b[i] +} + +func (b byFormatTime) Len() int { + return len(b) +} diff --git a/vendor/gopkg.in/warnings.v0/LICENSE b/vendor/gopkg.in/warnings.v0/LICENSE new file mode 100644 index 000000000..d65f7e9d8 --- /dev/null +++ b/vendor/gopkg.in/warnings.v0/LICENSE @@ -0,0 +1,24 @@ +Copyright (c) 2016 Péter Surányi. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/gopkg.in/warnings.v0/README b/vendor/gopkg.in/warnings.v0/README new file mode 100644 index 000000000..974212ba1 --- /dev/null +++ b/vendor/gopkg.in/warnings.v0/README @@ -0,0 +1,77 @@ +Package warnings implements error handling with non-fatal errors (warnings). + +import path: "gopkg.in/warnings.v0" +package docs: https://godoc.org/gopkg.in/warnings.v0 +issues: https://github.com/go-warnings/warnings/issues +pull requests: https://github.com/go-warnings/warnings/pulls + +A recurring pattern in Go programming is the following: + + func myfunc(params) error { + if err := doSomething(...); err != nil { + return err + } + if err := doSomethingElse(...); err != nil { + return err + } + if ok := doAnotherThing(...); !ok { + return errors.New("my error") + } + ... + return nil + } + +This pattern allows interrupting the flow on any received error. But what if +there are errors that should be noted but still not fatal, for which the flow +should not be interrupted? Implementing such logic at each if statement would +make the code complex and the flow much harder to follow. + +Package warnings provides the Collector type and a clean and simple pattern +for achieving such logic. The Collector takes care of deciding when to break +the flow and when to continue, collecting any non-fatal errors (warnings) +along the way. The only requirement is that fatal and non-fatal errors can be +distinguished programmatically; that is a function such as + + IsFatal(error) bool + +must be implemented. The following is an example of what the above snippet +could look like using the warnings package: + + import "gopkg.in/warnings.v0" + + func isFatal(err error) bool { + _, ok := err.(WarningType) + return !ok + } + + func myfunc(params) error { + c := warnings.NewCollector(isFatal) + c.FatalWithWarnings = true + if err := c.Collect(doSomething()); err != nil { + return err + } + if err := c.Collect(doSomethingElse(...)); err != nil { + return err + } + if ok := doAnotherThing(...); !ok { + if err := c.Collect(errors.New("my error")); err != nil { + return err + } + } + ... + return c.Done() + } + +For an example of a non-trivial code base using this library, see +gopkg.in/gcfg.v1 + +Rules for using warnings + + - ensure that warnings are programmatically distinguishable from fatal + errors (i.e. implement an isFatal function and any necessary error types) + - ensure that there is a single Collector instance for a call of each + exported function + - ensure that all errors (fatal or warning) are fed through Collect + - ensure that every time an error is returned, it is one returned by a + Collector (from Collect or Done) + - ensure that Collect is never called after Done diff --git a/vendor/gopkg.in/warnings.v0/warnings.go b/vendor/gopkg.in/warnings.v0/warnings.go new file mode 100644 index 000000000..b849d1e3d --- /dev/null +++ b/vendor/gopkg.in/warnings.v0/warnings.go @@ -0,0 +1,194 @@ +// Package warnings implements error handling with non-fatal errors (warnings). +// +// A recurring pattern in Go programming is the following: +// +// func myfunc(params) error { +// if err := doSomething(...); err != nil { +// return err +// } +// if err := doSomethingElse(...); err != nil { +// return err +// } +// if ok := doAnotherThing(...); !ok { +// return errors.New("my error") +// } +// ... +// return nil +// } +// +// This pattern allows interrupting the flow on any received error. But what if +// there are errors that should be noted but still not fatal, for which the flow +// should not be interrupted? Implementing such logic at each if statement would +// make the code complex and the flow much harder to follow. +// +// Package warnings provides the Collector type and a clean and simple pattern +// for achieving such logic. The Collector takes care of deciding when to break +// the flow and when to continue, collecting any non-fatal errors (warnings) +// along the way. The only requirement is that fatal and non-fatal errors can be +// distinguished programmatically; that is a function such as +// +// IsFatal(error) bool +// +// must be implemented. The following is an example of what the above snippet +// could look like using the warnings package: +// +// import "gopkg.in/warnings.v0" +// +// func isFatal(err error) bool { +// _, ok := err.(WarningType) +// return !ok +// } +// +// func myfunc(params) error { +// c := warnings.NewCollector(isFatal) +// c.FatalWithWarnings = true +// if err := c.Collect(doSomething()); err != nil { +// return err +// } +// if err := c.Collect(doSomethingElse(...)); err != nil { +// return err +// } +// if ok := doAnotherThing(...); !ok { +// if err := c.Collect(errors.New("my error")); err != nil { +// return err +// } +// } +// ... +// return c.Done() +// } +// +// For an example of a non-trivial code base using this library, see +// gopkg.in/gcfg.v1 +// +// Rules for using warnings +// +// - ensure that warnings are programmatically distinguishable from fatal +// errors (i.e. implement an isFatal function and any necessary error types) +// - ensure that there is a single Collector instance for a call of each +// exported function +// - ensure that all errors (fatal or warning) are fed through Collect +// - ensure that every time an error is returned, it is one returned by a +// Collector (from Collect or Done) +// - ensure that Collect is never called after Done +// +// TODO +// +// - optionally limit the number of warnings (e.g. stop after 20 warnings) (?) +// - consider interaction with contexts +// - go vet-style invocations verifier +// - semi-automatic code converter +// +package warnings // import "gopkg.in/warnings.v0" + +import ( + "bytes" + "fmt" +) + +// List holds a collection of warnings and optionally one fatal error. +type List struct { + Warnings []error + Fatal error +} + +// Error implements the error interface. +func (l List) Error() string { + b := bytes.NewBuffer(nil) + if l.Fatal != nil { + fmt.Fprintln(b, "fatal:") + fmt.Fprintln(b, l.Fatal) + } + switch len(l.Warnings) { + case 0: + // nop + case 1: + fmt.Fprintln(b, "warning:") + default: + fmt.Fprintln(b, "warnings:") + } + for _, err := range l.Warnings { + fmt.Fprintln(b, err) + } + return b.String() +} + +// A Collector collects errors up to the first fatal error. +type Collector struct { + // IsFatal distinguishes between warnings and fatal errors. + IsFatal func(error) bool + // FatalWithWarnings set to true means that a fatal error is returned as + // a List together with all warnings so far. The default behavior is to + // only return the fatal error and discard any warnings that have been + // collected. + FatalWithWarnings bool + + l List + done bool +} + +// NewCollector returns a new Collector; it uses isFatal to distinguish between +// warnings and fatal errors. +func NewCollector(isFatal func(error) bool) *Collector { + return &Collector{IsFatal: isFatal} +} + +// Collect collects a single error (warning or fatal). It returns nil if +// collection can continue (only warnings so far), or otherwise the errors +// collected. Collect mustn't be called after the first fatal error or after +// Done has been called. +func (c *Collector) Collect(err error) error { + if c.done { + panic("warnings.Collector already done") + } + if err == nil { + return nil + } + if c.IsFatal(err) { + c.done = true + c.l.Fatal = err + } else { + c.l.Warnings = append(c.l.Warnings, err) + } + if c.l.Fatal != nil { + return c.erorr() + } + return nil +} + +// Done ends collection and returns the collected error(s). +func (c *Collector) Done() error { + c.done = true + return c.erorr() +} + +func (c *Collector) erorr() error { + if !c.FatalWithWarnings && c.l.Fatal != nil { + return c.l.Fatal + } + if c.l.Fatal == nil && len(c.l.Warnings) == 0 { + return nil + } + // Note that a single warning is also returned as a List. This is to make it + // easier to determine fatal-ness of the returned error. + return c.l +} + +// FatalOnly returns the fatal error, if any, **in an error returned by a +// Collector**. It returns nil if and only if err is nil or err is a List +// with err.Fatal == nil. +func FatalOnly(err error) error { + l, ok := err.(List) + if !ok { + return err + } + return l.Fatal +} + +// WarningsOnly returns the warnings **in an error returned by a Collector**. +func WarningsOnly(err error) []error { + l, ok := err.(List) + if !ok { + return nil + } + return l.Warnings +} diff --git a/vendor/k8s.io/api/resource/v1alpha3/generated.pb.go b/vendor/k8s.io/api/resource/v1alpha3/generated.pb.go index 68eca0624..4ac01cc6f 100644 --- a/vendor/k8s.io/api/resource/v1alpha3/generated.pb.go +++ b/vendor/k8s.io/api/resource/v1alpha3/generated.pb.go @@ -1102,138 +1102,138 @@ func init() { } var fileDescriptor_66649ee9bbcd89d2 = []byte{ - // 2095 bytes of a gzipped FileDescriptorProto + // 2085 bytes of a gzipped FileDescriptorProto 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xd4, 0x1a, 0xcd, 0x6f, 0x1c, 0x57, - 0xdd, 0xb3, 0xeb, 0xcf, 0x9f, 0xbf, 0x9f, 0x93, 0xe0, 0x9a, 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0xa1, 0x7c, 0xde, 0x6f, 0x28, 0x9f, 0xfc, 0xbb, 0x71, + 0xea, 0xfb, 0x2f, 0x0e, 0xfa, 0x2f, 0x82, 0xff, 0x05, 0x00, 0x00, 0xff, 0xff, 0x23, 0x3d, 0xa6, + 0x20, 0x64, 0x20, 0x00, 0x00, } func (m *AllocationResult) Marshal() (dAtA []byte, err error) { diff --git a/vendor/k8s.io/api/resource/v1alpha3/generated.proto b/vendor/k8s.io/api/resource/v1alpha3/generated.proto index 35a7fbafa..b4428ad45 100644 --- a/vendor/k8s.io/api/resource/v1alpha3/generated.proto +++ b/vendor/k8s.io/api/resource/v1alpha3/generated.proto @@ -843,7 +843,7 @@ message ResourceSlice { message ResourceSliceList { // Standard list metadata // +optional - optional .k8s.io.apimachinery.pkg.apis.meta.v1.ListMeta listMeta = 1; + optional .k8s.io.apimachinery.pkg.apis.meta.v1.ListMeta metadata = 1; // Items is the list of resource ResourceSlices. repeated ResourceSlice items = 2; diff --git a/vendor/k8s.io/api/resource/v1alpha3/types.go b/vendor/k8s.io/api/resource/v1alpha3/types.go index 298d8d107..4efd2491d 100644 --- a/vendor/k8s.io/api/resource/v1alpha3/types.go +++ b/vendor/k8s.io/api/resource/v1alpha3/types.go @@ -290,7 +290,7 @@ type ResourceSliceList struct { metav1.TypeMeta `json:",inline"` // Standard list metadata // +optional - metav1.ListMeta `json:"listMeta" protobuf:"bytes,1,opt,name=listMeta"` + metav1.ListMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"` // Items is the list of resource ResourceSlices. Items []ResourceSlice `json:"items" protobuf:"bytes,2,rep,name=items"` diff --git a/vendor/k8s.io/api/resource/v1alpha3/types_swagger_doc_generated.go b/vendor/k8s.io/api/resource/v1alpha3/types_swagger_doc_generated.go index 8154c99ce..1a44a971d 100644 --- a/vendor/k8s.io/api/resource/v1alpha3/types_swagger_doc_generated.go +++ b/vendor/k8s.io/api/resource/v1alpha3/types_swagger_doc_generated.go @@ -379,7 +379,7 @@ func (ResourceSlice) SwaggerDoc() map[string]string { var map_ResourceSliceList = map[string]string{ "": "ResourceSliceList is a collection of ResourceSlices.", - "listMeta": "Standard list metadata", + "metadata": "Standard list metadata", "items": "Items is the list of resource ResourceSlices.", } diff --git a/vendor/k8s.io/klog/v2/internal/verbosity/verbosity.go b/vendor/k8s.io/klog/v2/internal/verbosity/verbosity.go new file mode 100644 index 000000000..40ec27d87 --- /dev/null +++ b/vendor/k8s.io/klog/v2/internal/verbosity/verbosity.go @@ -0,0 +1,303 @@ +/* +Copyright 2013 Google Inc. All Rights Reserved. +Copyright 2022 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +package verbosity + +import ( + "bytes" + "errors" + "flag" + "fmt" + "path/filepath" + "runtime" + "strconv" + "strings" + "sync" + "sync/atomic" +) + +// New returns a struct that implements -v and -vmodule support. Changing and +// checking these settings is thread-safe, with all concurrency issues handled +// internally. +func New() *VState { + vs := new(VState) + + // The two fields must have a pointer to the overal struct for their + // implementation of Set. + vs.vmodule.vs = vs + vs.verbosity.vs = vs + + return vs +} + +// Value is an extension that makes it possible to use the values in pflag. +type Value interface { + flag.Value + Type() string +} + +func (vs *VState) V() Value { + return &vs.verbosity +} + +func (vs *VState) VModule() Value { + return &vs.vmodule +} + +// VState contains settings and state. Some of its fields can be accessed +// through atomic read/writes, in other cases a mutex must be held. +type VState struct { + mu sync.Mutex + + // These flags are modified only under lock, although verbosity may be fetched + // safely using atomic.LoadInt32. + vmodule moduleSpec // The state of the -vmodule flag. + verbosity levelSpec // V logging level, the value of the -v flag/ + + // pcs is used in V to avoid an allocation when computing the caller's PC. + pcs [1]uintptr + // vmap is a cache of the V Level for each V() call site, identified by PC. + // It is wiped whenever the vmodule flag changes state. + vmap map[uintptr]Level + // filterLength stores the length of the vmodule filter chain. If greater + // than zero, it means vmodule is enabled. It may be read safely + // using sync.LoadInt32, but is only modified under mu. + filterLength int32 +} + +// Level must be an int32 to support atomic read/writes. +type Level int32 + +type levelSpec struct { + vs *VState + l Level +} + +// get returns the value of the level. +func (l *levelSpec) get() Level { + return Level(atomic.LoadInt32((*int32)(&l.l))) +} + +// set sets the value of the level. +func (l *levelSpec) set(val Level) { + atomic.StoreInt32((*int32)(&l.l), int32(val)) +} + +// String is part of the flag.Value interface. +func (l *levelSpec) String() string { + return strconv.FormatInt(int64(l.l), 10) +} + +// Get is part of the flag.Getter interface. It returns the +// verbosity level as int32. +func (l *levelSpec) Get() interface{} { + return int32(l.l) +} + +// Type is part of pflag.Value. +func (l *levelSpec) Type() string { + return "Level" +} + +// Set is part of the flag.Value interface. +func (l *levelSpec) Set(value string) error { + v, err := strconv.ParseInt(value, 10, 32) + if err != nil { + return err + } + l.vs.mu.Lock() + defer l.vs.mu.Unlock() + l.vs.set(Level(v), l.vs.vmodule.filter, false) + return nil +} + +// moduleSpec represents the setting of the -vmodule flag. +type moduleSpec struct { + vs *VState + filter []modulePat +} + +// modulePat contains a filter for the -vmodule flag. +// It holds a verbosity level and a file pattern to match. +type modulePat struct { + pattern string + literal bool // The pattern is a literal string + level Level +} + +// match reports whether the file matches the pattern. It uses a string +// comparison if the pattern contains no metacharacters. +func (m *modulePat) match(file string) bool { + if m.literal { + return file == m.pattern + } + match, _ := filepath.Match(m.pattern, file) + return match +} + +func (m *moduleSpec) String() string { + // Lock because the type is not atomic. TODO: clean this up. + // Empty instances don't have and don't need a lock (can + // happen when flag uses introspection). + if m.vs != nil { + m.vs.mu.Lock() + defer m.vs.mu.Unlock() + } + var b bytes.Buffer + for i, f := range m.filter { + if i > 0 { + b.WriteRune(',') + } + fmt.Fprintf(&b, "%s=%d", f.pattern, f.level) + } + return b.String() +} + +// Get is part of the (Go 1.2) flag.Getter interface. It always returns nil for this flag type since the +// struct is not exported. +func (m *moduleSpec) Get() interface{} { + return nil +} + +// Type is part of pflag.Value +func (m *moduleSpec) Type() string { + return "pattern=N,..." +} + +var errVmoduleSyntax = errors.New("syntax error: expect comma-separated list of filename=N") + +// Set will sets module value +// Syntax: -vmodule=recordio=2,file=1,gfs*=3 +func (m *moduleSpec) Set(value string) error { + var filter []modulePat + for _, pat := range strings.Split(value, ",") { + if len(pat) == 0 { + // Empty strings such as from a trailing comma can be ignored. + continue + } + patLev := strings.Split(pat, "=") + if len(patLev) != 2 || len(patLev[0]) == 0 || len(patLev[1]) == 0 { + return errVmoduleSyntax + } + pattern := patLev[0] + v, err := strconv.ParseInt(patLev[1], 10, 32) + if err != nil { + return errors.New("syntax error: expect comma-separated list of filename=N") + } + if v < 0 { + return errors.New("negative value for vmodule level") + } + if v == 0 { + continue // Ignore. It's harmless but no point in paying the overhead. + } + // TODO: check syntax of filter? + filter = append(filter, modulePat{pattern, isLiteral(pattern), Level(v)}) + } + m.vs.mu.Lock() + defer m.vs.mu.Unlock() + m.vs.set(m.vs.verbosity.l, filter, true) + return nil +} + +// isLiteral reports whether the pattern is a literal string, that is, has no metacharacters +// that require filepath.Match to be called to match the pattern. +func isLiteral(pattern string) bool { + return !strings.ContainsAny(pattern, `\*?[]`) +} + +// set sets a consistent state for V logging. +// The mutex must be held. +func (vs *VState) set(l Level, filter []modulePat, setFilter bool) { + // Turn verbosity off so V will not fire while we are in transition. + vs.verbosity.set(0) + // Ditto for filter length. + atomic.StoreInt32(&vs.filterLength, 0) + + // Set the new filters and wipe the pc->Level map if the filter has changed. + if setFilter { + vs.vmodule.filter = filter + vs.vmap = make(map[uintptr]Level) + } + + // Things are consistent now, so enable filtering and verbosity. + // They are enabled in order opposite to that in V. + atomic.StoreInt32(&vs.filterLength, int32(len(filter))) + vs.verbosity.set(l) +} + +// Enabled checks whether logging is enabled at the given level. This must be +// called with depth=0 when the caller of enabled will do the logging and +// higher values when more stack levels need to be skipped. +// +// The mutex will be locked only if needed. +func (vs *VState) Enabled(level Level, depth int) bool { + // This function tries hard to be cheap unless there's work to do. + // The fast path is two atomic loads and compares. + + // Here is a cheap but safe test to see if V logging is enabled globally. + if vs.verbosity.get() >= level { + return true + } + + // It's off globally but vmodule may still be set. + // Here is another cheap but safe test to see if vmodule is enabled. + if atomic.LoadInt32(&vs.filterLength) > 0 { + // Now we need a proper lock to use the logging structure. The pcs field + // is shared so we must lock before accessing it. This is fairly expensive, + // but if V logging is enabled we're slow anyway. + vs.mu.Lock() + defer vs.mu.Unlock() + if runtime.Callers(depth+2, vs.pcs[:]) == 0 { + return false + } + // runtime.Callers returns "return PCs", but we want + // to look up the symbolic information for the call, + // so subtract 1 from the PC. runtime.CallersFrames + // would be cleaner, but allocates. + pc := vs.pcs[0] - 1 + v, ok := vs.vmap[pc] + if !ok { + v = vs.setV(pc) + } + return v >= level + } + return false +} + +// setV computes and remembers the V level for a given PC +// when vmodule is enabled. +// File pattern matching takes the basename of the file, stripped +// of its .go suffix, and uses filepath.Match, which is a little more +// general than the *? matching used in C++. +// Mutex is held. +func (vs *VState) setV(pc uintptr) Level { + fn := runtime.FuncForPC(pc) + file, _ := fn.FileLine(pc) + // The file is something like /a/b/c/d.go. We want just the d. + file = strings.TrimSuffix(file, ".go") + if slash := strings.LastIndex(file, "/"); slash >= 0 { + file = file[slash+1:] + } + for _, filter := range vs.vmodule.filter { + if filter.match(file) { + vs.vmap[pc] = filter.level + return filter.level + } + } + vs.vmap[pc] = 0 + return 0 +} diff --git a/vendor/k8s.io/klog/v2/textlogger/options.go b/vendor/k8s.io/klog/v2/textlogger/options.go new file mode 100644 index 000000000..b1c4eefb3 --- /dev/null +++ b/vendor/k8s.io/klog/v2/textlogger/options.go @@ -0,0 +1,154 @@ +/* +Copyright 2021 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +package textlogger + +import ( + "flag" + "io" + "os" + "strconv" + "time" + + "k8s.io/klog/v2/internal/verbosity" +) + +// Config influences logging in a text logger. To make this configurable via +// command line flags, instantiate this once per program and use AddFlags to +// bind command line flags to the instance before passing it to NewTestContext. +// +// Must be constructed with NewConfig. +type Config struct { + vstate *verbosity.VState + co configOptions +} + +// Verbosity returns a value instance that can be used to query (via String) or +// modify (via Set) the verbosity threshold. This is thread-safe and can be +// done at runtime. +func (c *Config) Verbosity() flag.Value { + return c.vstate.V() +} + +// VModule returns a value instance that can be used to query (via String) or +// modify (via Set) the vmodule settings. This is thread-safe and can be done +// at runtime. +func (c *Config) VModule() flag.Value { + return c.vstate.VModule() +} + +// ConfigOption implements functional parameters for NewConfig. +type ConfigOption func(co *configOptions) + +type configOptions struct { + verbosityFlagName string + vmoduleFlagName string + verbosityDefault int + fixedTime *time.Time + unwind func(int) (string, int) + output io.Writer +} + +// VerbosityFlagName overrides the default -v for the verbosity level. +func VerbosityFlagName(name string) ConfigOption { + return func(co *configOptions) { + + co.verbosityFlagName = name + } +} + +// VModulFlagName overrides the default -vmodule for the per-module +// verbosity levels. +func VModuleFlagName(name string) ConfigOption { + return func(co *configOptions) { + co.vmoduleFlagName = name + } +} + +// Verbosity overrides the default verbosity level of 0. +// See https://github.com/kubernetes/community/blob/9406b4352fe2d5810cb21cc3cb059ce5886de157/contributors/devel/sig-instrumentation/logging.md#logging-conventions +// for log level conventions in Kubernetes. +func Verbosity(level int) ConfigOption { + return func(co *configOptions) { + co.verbosityDefault = level + } +} + +// Output overrides stderr as the output stream. +func Output(output io.Writer) ConfigOption { + return func(co *configOptions) { + co.output = output + } +} + +// FixedTime overrides the actual time with a fixed time. Useful only for testing. +// +// # Experimental +// +// Notice: This function is EXPERIMENTAL and may be changed or removed in a +// later release. +func FixedTime(ts time.Time) ConfigOption { + return func(co *configOptions) { + co.fixedTime = &ts + } +} + +// Backtrace overrides the default mechanism for determining the call site. +// The callback is invoked with the number of function calls between itself +// and the call site. It must return the file name and line number. An empty +// file name indicates that the information is unknown. +// +// # Experimental +// +// Notice: This function is EXPERIMENTAL and may be changed or removed in a +// later release. +func Backtrace(unwind func(skip int) (filename string, line int)) ConfigOption { + return func(co *configOptions) { + co.unwind = unwind + } +} + +// NewConfig returns a configuration with recommended defaults and optional +// modifications. Command line flags are not bound to any FlagSet yet. +func NewConfig(opts ...ConfigOption) *Config { + c := &Config{ + vstate: verbosity.New(), + co: configOptions{ + verbosityFlagName: "v", + vmoduleFlagName: "vmodule", + verbosityDefault: 0, + unwind: runtimeBacktrace, + output: os.Stderr, + }, + } + for _, opt := range opts { + opt(&c.co) + } + + // Cannot fail for this input. + _ = c.Verbosity().Set(strconv.FormatInt(int64(c.co.verbosityDefault), 10)) + return c +} + +// AddFlags registers the command line flags that control the configuration. +// +// The default flag names are the same as in klog, so unless those defaults +// are changed, either klog.InitFlags or Config.AddFlags can be used for the +// same flag set, but not both. +func (c *Config) AddFlags(fs *flag.FlagSet) { + fs.Var(c.Verbosity(), c.co.verbosityFlagName, "number for the log level verbosity of the testing logger") + fs.Var(c.VModule(), c.co.vmoduleFlagName, "comma-separated list of pattern=N log level settings for files matching the patterns") +} diff --git a/vendor/k8s.io/klog/v2/textlogger/textlogger.go b/vendor/k8s.io/klog/v2/textlogger/textlogger.go new file mode 100644 index 000000000..0b55a2994 --- /dev/null +++ b/vendor/k8s.io/klog/v2/textlogger/textlogger.go @@ -0,0 +1,187 @@ +/* +Copyright 2019 The Kubernetes Authors. +Copyright 2020 Intel Corporation. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +// Package textlogger contains an implementation of the logr interface which is +// producing the exact same output as klog. It does not route output through +// klog (i.e. ignores [k8s.io/klog/v2.InitFlags]). Instead, all settings must be +// configured through its own [NewConfig] and [Config.AddFlags]. +package textlogger + +import ( + "runtime" + "strconv" + "strings" + "time" + + "github.com/go-logr/logr" + + "k8s.io/klog/v2/internal/buffer" + "k8s.io/klog/v2/internal/serialize" + "k8s.io/klog/v2/internal/severity" + "k8s.io/klog/v2/internal/verbosity" +) + +var ( + // TimeNow is used to retrieve the current time. May be changed for testing. + TimeNow = time.Now +) + +const ( + // nameKey is used to log the `WithName` values as an additional attribute. + nameKey = "logger" +) + +// NewLogger constructs a new logger. +// +// Verbosity can be modified at any time through the Config.V and +// Config.VModule API. +func NewLogger(c *Config) logr.Logger { + return logr.New(&tlogger{ + values: nil, + config: c, + }) +} + +type tlogger struct { + callDepth int + + // hasPrefix is true if the first entry in values is the special + // nameKey key/value. Such an entry gets added and later updated in + // WithName. + hasPrefix bool + + values []interface{} + groups string + config *Config +} + +func (l *tlogger) Init(info logr.RuntimeInfo) { + l.callDepth = info.CallDepth +} + +func (l *tlogger) WithCallDepth(depth int) logr.LogSink { + newLogger := *l + newLogger.callDepth += depth + return &newLogger +} + +func (l *tlogger) Enabled(level int) bool { + return l.config.vstate.Enabled(verbosity.Level(level), 1+l.callDepth) +} + +func (l *tlogger) Info(_ int, msg string, kvList ...interface{}) { + l.print(nil, severity.InfoLog, msg, kvList) +} + +func (l *tlogger) Error(err error, msg string, kvList ...interface{}) { + l.print(err, severity.ErrorLog, msg, kvList) +} + +func (l *tlogger) print(err error, s severity.Severity, msg string, kvList []interface{}) { + // Determine caller. + // +1 for this frame, +1 for Info/Error. + skip := l.callDepth + 2 + file, line := l.config.co.unwind(skip) + if file == "" { + file = "???" + line = 1 + } else if slash := strings.LastIndex(file, "/"); slash >= 0 { + file = file[slash+1:] + } + l.printWithInfos(file, line, time.Now(), err, s, msg, kvList) +} + +func runtimeBacktrace(skip int) (string, int) { + _, file, line, ok := runtime.Caller(skip + 1) + if !ok { + return "", 0 + } + return file, line +} + +func (l *tlogger) printWithInfos(file string, line int, now time.Time, err error, s severity.Severity, msg string, kvList []interface{}) { + // Only create a new buffer if we don't have one cached. + b := buffer.GetBuffer() + defer buffer.PutBuffer(b) + + // Format header. + if l.config.co.fixedTime != nil { + now = *l.config.co.fixedTime + } + b.FormatHeader(s, file, line, now) + + // The message is always quoted, even if it contains line breaks. + // If developers want multi-line output, they should use a small, fixed + // message and put the multi-line output into a value. + b.WriteString(strconv.Quote(msg)) + if err != nil { + serialize.KVFormat(&b.Buffer, "err", err) + } + serialize.MergeAndFormatKVs(&b.Buffer, l.values, kvList) + if b.Len() == 0 || b.Bytes()[b.Len()-1] != '\n' { + b.WriteByte('\n') + } + _, _ = l.config.co.output.Write(b.Bytes()) +} + +func (l *tlogger) WriteKlogBuffer(data []byte) { + _, _ = l.config.co.output.Write(data) +} + +// WithName returns a new logr.Logger with the specified name appended. klogr +// uses '/' characters to separate name elements. Callers should not pass '/' +// in the provided name string, but this library does not actually enforce that. +func (l *tlogger) WithName(name string) logr.LogSink { + clone := *l + if l.hasPrefix { + // Copy slice and modify value. No length checks and type + // assertions are needed because hasPrefix is only true if the + // first two elements exist and are key/value strings. + v := make([]interface{}, 0, len(l.values)) + v = append(v, l.values...) + prefix, _ := v[1].(string) + v[1] = prefix + "." + name + clone.values = v + } else { + // Preprend new key/value pair. + v := make([]interface{}, 0, 2+len(l.values)) + v = append(v, nameKey, name) + v = append(v, l.values...) + clone.values = v + clone.hasPrefix = true + } + return &clone +} + +func (l *tlogger) WithValues(kvList ...interface{}) logr.LogSink { + clone := *l + clone.values = serialize.WithValues(l.values, kvList) + return &clone +} + +// KlogBufferWriter is implemented by the textlogger LogSink. +type KlogBufferWriter interface { + // WriteKlogBuffer takes a pre-formatted buffer prepared by klog and + // writes it unchanged to the output stream. Can be used with + // klog.WriteKlogBuffer when setting a logger through + // klog.SetLoggerWithOptions. + WriteKlogBuffer([]byte) +} + +var _ logr.LogSink = &tlogger{} +var _ logr.CallDepthLogSink = &tlogger{} +var _ KlogBufferWriter = &tlogger{} diff --git a/vendor/k8s.io/klog/v2/textlogger/textlogger_slog.go b/vendor/k8s.io/klog/v2/textlogger/textlogger_slog.go new file mode 100644 index 000000000..c888ef8a6 --- /dev/null +++ b/vendor/k8s.io/klog/v2/textlogger/textlogger_slog.go @@ -0,0 +1,52 @@ +//go:build go1.21 +// +build go1.21 + +/* +Copyright 2023 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +package textlogger + +import ( + "context" + "log/slog" + + "github.com/go-logr/logr" + + "k8s.io/klog/v2/internal/serialize" + "k8s.io/klog/v2/internal/sloghandler" +) + +func (l *tlogger) Handle(ctx context.Context, record slog.Record) error { + return sloghandler.Handle(ctx, record, l.groups, l.printWithInfos) +} + +func (l *tlogger) WithAttrs(attrs []slog.Attr) logr.SlogSink { + clone := *l + clone.values = serialize.WithValues(l.values, sloghandler.Attrs2KVList(l.groups, attrs)) + return &clone +} + +func (l *tlogger) WithGroup(name string) logr.SlogSink { + clone := *l + if clone.groups != "" { + clone.groups += "." + name + } else { + clone.groups = name + } + return &clone +} + +var _ logr.SlogSink = &tlogger{} diff --git a/vendor/k8s.io/utils/exec/README.md b/vendor/k8s.io/utils/exec/README.md new file mode 100644 index 000000000..7944e8dd3 --- /dev/null +++ b/vendor/k8s.io/utils/exec/README.md @@ -0,0 +1,5 @@ +# Exec + +This package provides an interface for `os/exec`. It makes it easier to mock +and replace in tests, especially with the [FakeExec](testing/fake_exec.go) +struct. diff --git a/vendor/k8s.io/utils/exec/doc.go b/vendor/k8s.io/utils/exec/doc.go new file mode 100644 index 000000000..cbb44bdb5 --- /dev/null +++ b/vendor/k8s.io/utils/exec/doc.go @@ -0,0 +1,18 @@ +/* +Copyright 2017 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +// Package exec provides an injectable interface and implementations for running commands. +package exec // import "k8s.io/utils/exec" diff --git a/vendor/k8s.io/utils/exec/exec.go b/vendor/k8s.io/utils/exec/exec.go new file mode 100644 index 000000000..d9c91e3ca --- /dev/null +++ b/vendor/k8s.io/utils/exec/exec.go @@ -0,0 +1,256 @@ +/* +Copyright 2017 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +package exec + +import ( + "context" + "io" + "io/fs" + osexec "os/exec" + "syscall" + "time" +) + +// ErrExecutableNotFound is returned if the executable is not found. +var ErrExecutableNotFound = osexec.ErrNotFound + +// Interface is an interface that presents a subset of the os/exec API. Use this +// when you want to inject fakeable/mockable exec behavior. +type Interface interface { + // Command returns a Cmd instance which can be used to run a single command. + // This follows the pattern of package os/exec. + Command(cmd string, args ...string) Cmd + + // CommandContext returns a Cmd instance which can be used to run a single command. + // + // The provided context is used to kill the process if the context becomes done + // before the command completes on its own. For example, a timeout can be set in + // the context. + CommandContext(ctx context.Context, cmd string, args ...string) Cmd + + // LookPath wraps os/exec.LookPath + LookPath(file string) (string, error) +} + +// Cmd is an interface that presents an API that is very similar to Cmd from os/exec. +// As more functionality is needed, this can grow. Since Cmd is a struct, we will have +// to replace fields with get/set method pairs. +type Cmd interface { + // Run runs the command to the completion. + Run() error + // CombinedOutput runs the command and returns its combined standard output + // and standard error. This follows the pattern of package os/exec. + CombinedOutput() ([]byte, error) + // Output runs the command and returns standard output, but not standard err + Output() ([]byte, error) + SetDir(dir string) + SetStdin(in io.Reader) + SetStdout(out io.Writer) + SetStderr(out io.Writer) + SetEnv(env []string) + + // StdoutPipe and StderrPipe for getting the process' Stdout and Stderr as + // Readers + StdoutPipe() (io.ReadCloser, error) + StderrPipe() (io.ReadCloser, error) + + // Start and Wait are for running a process non-blocking + Start() error + Wait() error + + // Stops the command by sending SIGTERM. It is not guaranteed the + // process will stop before this function returns. If the process is not + // responding, an internal timer function will send a SIGKILL to force + // terminate after 10 seconds. + Stop() +} + +// ExitError is an interface that presents an API similar to os.ProcessState, which is +// what ExitError from os/exec is. This is designed to make testing a bit easier and +// probably loses some of the cross-platform properties of the underlying library. +type ExitError interface { + String() string + Error() string + Exited() bool + ExitStatus() int +} + +// Implements Interface in terms of really exec()ing. +type executor struct{} + +// New returns a new Interface which will os/exec to run commands. +func New() Interface { + return &executor{} +} + +// Command is part of the Interface interface. +func (executor *executor) Command(cmd string, args ...string) Cmd { + return (*cmdWrapper)(maskErrDotCmd(osexec.Command(cmd, args...))) +} + +// CommandContext is part of the Interface interface. +func (executor *executor) CommandContext(ctx context.Context, cmd string, args ...string) Cmd { + return (*cmdWrapper)(maskErrDotCmd(osexec.CommandContext(ctx, cmd, args...))) +} + +// LookPath is part of the Interface interface +func (executor *executor) LookPath(file string) (string, error) { + path, err := osexec.LookPath(file) + return path, handleError(maskErrDot(err)) +} + +// Wraps exec.Cmd so we can capture errors. +type cmdWrapper osexec.Cmd + +var _ Cmd = &cmdWrapper{} + +func (cmd *cmdWrapper) SetDir(dir string) { + cmd.Dir = dir +} + +func (cmd *cmdWrapper) SetStdin(in io.Reader) { + cmd.Stdin = in +} + +func (cmd *cmdWrapper) SetStdout(out io.Writer) { + cmd.Stdout = out +} + +func (cmd *cmdWrapper) SetStderr(out io.Writer) { + cmd.Stderr = out +} + +func (cmd *cmdWrapper) SetEnv(env []string) { + cmd.Env = env +} + +func (cmd *cmdWrapper) StdoutPipe() (io.ReadCloser, error) { + r, err := (*osexec.Cmd)(cmd).StdoutPipe() + return r, handleError(err) +} + +func (cmd *cmdWrapper) StderrPipe() (io.ReadCloser, error) { + r, err := (*osexec.Cmd)(cmd).StderrPipe() + return r, handleError(err) +} + +func (cmd *cmdWrapper) Start() error { + err := (*osexec.Cmd)(cmd).Start() + return handleError(err) +} + +func (cmd *cmdWrapper) Wait() error { + err := (*osexec.Cmd)(cmd).Wait() + return handleError(err) +} + +// Run is part of the Cmd interface. +func (cmd *cmdWrapper) Run() error { + err := (*osexec.Cmd)(cmd).Run() + return handleError(err) +} + +// CombinedOutput is part of the Cmd interface. +func (cmd *cmdWrapper) CombinedOutput() ([]byte, error) { + out, err := (*osexec.Cmd)(cmd).CombinedOutput() + return out, handleError(err) +} + +func (cmd *cmdWrapper) Output() ([]byte, error) { + out, err := (*osexec.Cmd)(cmd).Output() + return out, handleError(err) +} + +// Stop is part of the Cmd interface. +func (cmd *cmdWrapper) Stop() { + c := (*osexec.Cmd)(cmd) + + if c.Process == nil { + return + } + + c.Process.Signal(syscall.SIGTERM) + + time.AfterFunc(10*time.Second, func() { + if !c.ProcessState.Exited() { + c.Process.Signal(syscall.SIGKILL) + } + }) +} + +func handleError(err error) error { + if err == nil { + return nil + } + + switch e := err.(type) { + case *osexec.ExitError: + return &ExitErrorWrapper{e} + case *fs.PathError: + return ErrExecutableNotFound + case *osexec.Error: + if e.Err == osexec.ErrNotFound { + return ErrExecutableNotFound + } + } + + return err +} + +// ExitErrorWrapper is an implementation of ExitError in terms of os/exec ExitError. +// Note: standard exec.ExitError is type *os.ProcessState, which already implements Exited(). +type ExitErrorWrapper struct { + *osexec.ExitError +} + +var _ ExitError = &ExitErrorWrapper{} + +// ExitStatus is part of the ExitError interface. +func (eew ExitErrorWrapper) ExitStatus() int { + ws, ok := eew.Sys().(syscall.WaitStatus) + if !ok { + panic("can't call ExitStatus() on a non-WaitStatus exitErrorWrapper") + } + return ws.ExitStatus() +} + +// CodeExitError is an implementation of ExitError consisting of an error object +// and an exit code (the upper bits of os.exec.ExitStatus). +type CodeExitError struct { + Err error + Code int +} + +var _ ExitError = CodeExitError{} + +func (e CodeExitError) Error() string { + return e.Err.Error() +} + +func (e CodeExitError) String() string { + return e.Err.Error() +} + +// Exited is to check if the process has finished +func (e CodeExitError) Exited() bool { + return true +} + +// ExitStatus is for checking the error code +func (e CodeExitError) ExitStatus() int { + return e.Code +} diff --git a/vendor/k8s.io/utils/exec/fixup_go118.go b/vendor/k8s.io/utils/exec/fixup_go118.go new file mode 100644 index 000000000..acf45f1cd --- /dev/null +++ b/vendor/k8s.io/utils/exec/fixup_go118.go @@ -0,0 +1,32 @@ +//go:build !go1.19 +// +build !go1.19 + +/* +Copyright 2022 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +package exec + +import ( + osexec "os/exec" +) + +func maskErrDotCmd(cmd *osexec.Cmd) *osexec.Cmd { + return cmd +} + +func maskErrDot(err error) error { + return err +} diff --git a/vendor/k8s.io/utils/exec/fixup_go119.go b/vendor/k8s.io/utils/exec/fixup_go119.go new file mode 100644 index 000000000..55874c929 --- /dev/null +++ b/vendor/k8s.io/utils/exec/fixup_go119.go @@ -0,0 +1,40 @@ +//go:build go1.19 +// +build go1.19 + +/* +Copyright 2022 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +package exec + +import ( + "errors" + osexec "os/exec" +) + +// maskErrDotCmd reverts the behavior of osexec.Cmd to what it was before go1.19 +// specifically set the Err field to nil (LookPath returns a new error when the file +// is resolved to the current directory. +func maskErrDotCmd(cmd *osexec.Cmd) *osexec.Cmd { + cmd.Err = maskErrDot(cmd.Err) + return cmd +} + +func maskErrDot(err error) error { + if err != nil && errors.Is(err, osexec.ErrDot) { + return nil + } + return err +} diff --git a/vendor/modules.txt b/vendor/modules.txt index 6041e7d99..91e1ec75e 100644 --- a/vendor/modules.txt +++ b/vendor/modules.txt @@ -29,6 +29,13 @@ github.com/blang/semver/v4 # github.com/cenkalti/backoff/v4 v4.3.0 ## explicit; go 1.18 github.com/cenkalti/backoff/v4 +# github.com/cenkalti/hub v1.0.1 +## explicit +github.com/cenkalti/hub +# github.com/cenkalti/rpc2 v0.0.0-20210604223624-c1acbc6ec984 +## explicit +github.com/cenkalti/rpc2 +github.com/cenkalti/rpc2/jsonrpc # github.com/cespare/xxhash/v2 v2.3.0 ## explicit; go 1.11 github.com/cespare/xxhash/v2 @@ -49,6 +56,29 @@ github.com/cilium/ebpf/link github.com/cilium/ebpf/perf github.com/cilium/ebpf/ringbuf github.com/cilium/ebpf/rlimit +# github.com/containernetworking/cni v1.1.2 +## explicit; go 1.14 +github.com/containernetworking/cni/libcni +github.com/containernetworking/cni/pkg/invoke +github.com/containernetworking/cni/pkg/types +github.com/containernetworking/cni/pkg/types/020 +github.com/containernetworking/cni/pkg/types/040 +github.com/containernetworking/cni/pkg/types/100 +github.com/containernetworking/cni/pkg/types/create +github.com/containernetworking/cni/pkg/types/internal +github.com/containernetworking/cni/pkg/utils +github.com/containernetworking/cni/pkg/version +# github.com/containernetworking/plugins v1.2.0 +## explicit; go 1.17 +github.com/containernetworking/plugins/pkg/ip +github.com/containernetworking/plugins/pkg/ns +github.com/containernetworking/plugins/pkg/utils/sysctl +# github.com/coreos/go-iptables v0.6.0 +## explicit; go 1.16 +github.com/coreos/go-iptables/iptables +# github.com/cpuguy83/go-md2man/v2 v2.0.3 +## explicit; go 1.11 +github.com/cpuguy83/go-md2man/v2/md2man # github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc ## explicit github.com/davecgh/go-spew/spew @@ -280,7 +310,7 @@ github.com/netobserv/loki-client-go/pkg/labelutil github.com/netobserv/loki-client-go/pkg/logproto github.com/netobserv/loki-client-go/pkg/metric github.com/netobserv/loki-client-go/pkg/urlutil -# github.com/netobserv/netobserv-ebpf-agent v1.6.1-crc2.0.20240905095613-6adad95c9d84 +# github.com/netobserv/netobserv-ebpf-agent v1.6.1-crc2.0.20240913155426-6ac7c5ccbf59 ## explicit; go 1.22.3 github.com/netobserv/netobserv-ebpf-agent/pkg/decode github.com/netobserv/netobserv-ebpf-agent/pkg/ebpf @@ -307,6 +337,28 @@ github.com/netsampler/goflow2/pb github.com/netsampler/goflow2/producer github.com/netsampler/goflow2/transport github.com/netsampler/goflow2/utils +# github.com/ovn-org/libovsdb v0.7.1-0.20240820095311-ce1951614a20 +## explicit; go 1.18 +github.com/ovn-org/libovsdb/cache +github.com/ovn-org/libovsdb/client +github.com/ovn-org/libovsdb/database +github.com/ovn-org/libovsdb/mapper +github.com/ovn-org/libovsdb/model +github.com/ovn-org/libovsdb/ovsdb +github.com/ovn-org/libovsdb/ovsdb/serverdb +github.com/ovn-org/libovsdb/updates +# github.com/ovn-org/ovn-kubernetes/go-controller v0.0.0-20240902083137-5d2310e77f87 +## explicit; go 1.22.0 +github.com/ovn-org/ovn-kubernetes/go-controller/observability-lib/ovsdb +github.com/ovn-org/ovn-kubernetes/go-controller/observability-lib/sampledecoder +github.com/ovn-org/ovn-kubernetes/go-controller/pkg/cni/types +github.com/ovn-org/ovn-kubernetes/go-controller/pkg/config +github.com/ovn-org/ovn-kubernetes/go-controller/pkg/cryptorand +github.com/ovn-org/ovn-kubernetes/go-controller/pkg/libovsdb/ops +github.com/ovn-org/ovn-kubernetes/go-controller/pkg/nbdb +github.com/ovn-org/ovn-kubernetes/go-controller/pkg/observability +github.com/ovn-org/ovn-kubernetes/go-controller/pkg/sbdb +github.com/ovn-org/ovn-kubernetes/go-controller/pkg/types # github.com/pelletier/go-toml/v2 v2.2.2 ## explicit; go 1.16 github.com/pelletier/go-toml/v2 @@ -397,6 +449,12 @@ github.com/prometheus/prometheus/util/strutil # github.com/rs/xid v1.5.0 ## explicit; go 1.12 github.com/rs/xid +# github.com/russross/blackfriday/v2 v2.1.0 +## explicit +github.com/russross/blackfriday/v2 +# github.com/safchain/ethtool v0.3.1-0.20231027162144-83e5e0097c91 +## explicit; go 1.16 +github.com/safchain/ethtool # github.com/sagikazarmark/locafero v0.4.0 ## explicit; go 1.20 github.com/sagikazarmark/locafero @@ -502,7 +560,10 @@ github.com/stretchr/testify/require # github.com/subosito/gotenv v1.6.0 ## explicit; go 1.18 github.com/subosito/gotenv -# github.com/vishvananda/netlink v1.1.0 +# github.com/urfave/cli/v2 v2.2.0 +## explicit; go 1.11 +github.com/urfave/cli/v2 +# github.com/vishvananda/netlink v1.3.0 ## explicit; go 1.12 github.com/vishvananda/netlink github.com/vishvananda/netlink/nl @@ -634,7 +695,7 @@ golang.org/x/crypto/blake2b golang.org/x/crypto/cryptobyte golang.org/x/crypto/cryptobyte/asn1 golang.org/x/crypto/curve25519 -# golang.org/x/exp v0.0.0-20230905200255-921286631fa9 +# golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842 ## explicit; go 1.20 golang.org/x/exp/constraints golang.org/x/exp/slices @@ -662,7 +723,7 @@ golang.org/x/net/websocket golang.org/x/oauth2 golang.org/x/oauth2/clientcredentials golang.org/x/oauth2/internal -# golang.org/x/sys v0.24.0 +# golang.org/x/sys v0.25.0 ## explicit; go 1.18 golang.org/x/sys/cpu golang.org/x/sys/plan9 @@ -801,19 +862,31 @@ google.golang.org/protobuf/types/known/timestamppb google.golang.org/protobuf/types/known/wrapperspb # gopkg.in/DATA-DOG/go-sqlmock.v1 v1.3.0 ## explicit +# gopkg.in/gcfg.v1 v1.2.3 +## explicit +gopkg.in/gcfg.v1 +gopkg.in/gcfg.v1/scanner +gopkg.in/gcfg.v1/token +gopkg.in/gcfg.v1/types # gopkg.in/inf.v0 v0.9.1 ## explicit gopkg.in/inf.v0 # gopkg.in/ini.v1 v1.67.0 ## explicit gopkg.in/ini.v1 +# gopkg.in/natefinch/lumberjack.v2 v2.2.1 +## explicit; go 1.13 +gopkg.in/natefinch/lumberjack.v2 +# gopkg.in/warnings.v0 v0.1.2 +## explicit +gopkg.in/warnings.v0 # gopkg.in/yaml.v2 v2.4.0 ## explicit; go 1.15 gopkg.in/yaml.v2 # gopkg.in/yaml.v3 v3.0.1 ## explicit gopkg.in/yaml.v3 -# k8s.io/api v0.31.0 +# k8s.io/api v0.31.1 ## explicit; go 1.22.0 k8s.io/api/admissionregistration/v1 k8s.io/api/admissionregistration/v1alpha1 @@ -870,7 +943,7 @@ k8s.io/api/storage/v1 k8s.io/api/storage/v1alpha1 k8s.io/api/storage/v1beta1 k8s.io/api/storagemigration/v1alpha1 -# k8s.io/apimachinery v0.31.0 +# k8s.io/apimachinery v0.31.1 ## explicit; go 1.22.0 k8s.io/apimachinery/pkg/api/equality k8s.io/apimachinery/pkg/api/errors @@ -931,7 +1004,7 @@ k8s.io/apimachinery/pkg/watch k8s.io/apimachinery/third_party/forked/golang/json k8s.io/apimachinery/third_party/forked/golang/netutil k8s.io/apimachinery/third_party/forked/golang/reflect -# k8s.io/client-go v0.31.0 +# k8s.io/client-go v0.31.1 ## explicit; go 1.22.0 k8s.io/client-go/applyconfigurations/admissionregistration/v1 k8s.io/client-go/applyconfigurations/admissionregistration/v1alpha1 @@ -1197,7 +1270,7 @@ k8s.io/client-go/util/homedir k8s.io/client-go/util/keyutil k8s.io/client-go/util/watchlist k8s.io/client-go/util/workqueue -# k8s.io/component-base v0.30.1 +# k8s.io/component-base v0.30.2 ## explicit; go 1.22.0 k8s.io/component-base/featuregate k8s.io/component-base/metrics @@ -1214,6 +1287,8 @@ k8s.io/klog/v2/internal/dbg k8s.io/klog/v2/internal/serialize k8s.io/klog/v2/internal/severity k8s.io/klog/v2/internal/sloghandler +k8s.io/klog/v2/internal/verbosity +k8s.io/klog/v2/textlogger # k8s.io/kube-openapi v0.0.0-20240228011516-70dd3763d340 ## explicit; go 1.20 k8s.io/kube-openapi/pkg/cached @@ -1230,6 +1305,7 @@ k8s.io/kube-openapi/pkg/validation/spec k8s.io/utils/buffer k8s.io/utils/clock k8s.io/utils/clock/testing +k8s.io/utils/exec k8s.io/utils/internal/third_party/forked/golang/net k8s.io/utils/net k8s.io/utils/pointer @@ -1239,7 +1315,7 @@ k8s.io/utils/trace # lukechampine.com/uint128 v1.2.0 ## explicit; go 1.12 lukechampine.com/uint128 -# sigs.k8s.io/controller-runtime v0.18.2 +# sigs.k8s.io/controller-runtime v0.18.4 ## explicit; go 1.22.0 sigs.k8s.io/controller-runtime/pkg/client sigs.k8s.io/controller-runtime/pkg/client/apiutil diff --git a/vendor/sigs.k8s.io/controller-runtime/pkg/controller/controllerutil/controllerutil.go b/vendor/sigs.k8s.io/controller-runtime/pkg/controller/controllerutil/controllerutil.go index 05153f74c..176ce0db0 100644 --- a/vendor/sigs.k8s.io/controller-runtime/pkg/controller/controllerutil/controllerutil.go +++ b/vendor/sigs.k8s.io/controller-runtime/pkg/controller/controllerutil/controllerutil.go @@ -52,12 +52,22 @@ func newAlreadyOwnedError(obj metav1.Object, owner metav1.OwnerReference) *Alrea } } +// OwnerReferenceOption is a function that can modify a `metav1.OwnerReference`. +type OwnerReferenceOption func(*metav1.OwnerReference) + +// WithBlockOwnerDeletion allows configuring the BlockOwnerDeletion field on the `metav1.OwnerReference`. +func WithBlockOwnerDeletion(blockOwnerDeletion bool) OwnerReferenceOption { + return func(ref *metav1.OwnerReference) { + ref.BlockOwnerDeletion = &blockOwnerDeletion + } +} + // SetControllerReference sets owner as a Controller OwnerReference on controlled. // This is used for garbage collection of the controlled object and for // reconciling the owner object on changes to controlled (with a Watch + EnqueueRequestForOwner). // Since only one OwnerReference can be a controller, it returns an error if // there is another OwnerReference with Controller flag set. -func SetControllerReference(owner, controlled metav1.Object, scheme *runtime.Scheme) error { +func SetControllerReference(owner, controlled metav1.Object, scheme *runtime.Scheme, opts ...OwnerReferenceOption) error { // Validate the owner. ro, ok := owner.(runtime.Object) if !ok { @@ -80,6 +90,9 @@ func SetControllerReference(owner, controlled metav1.Object, scheme *runtime.Sch BlockOwnerDeletion: ptr.To(true), Controller: ptr.To(true), } + for _, opt := range opts { + opt(&ref) + } // Return early with an error if the object is already controlled. if existing := metav1.GetControllerOf(controlled); existing != nil && !referSameObject(*existing, ref) { @@ -94,7 +107,7 @@ func SetControllerReference(owner, controlled metav1.Object, scheme *runtime.Sch // SetOwnerReference is a helper method to make sure the given object contains an object reference to the object provided. // This allows you to declare that owner has a dependency on the object without specifying it as a controller. // If a reference to the same object already exists, it'll be overwritten with the newly provided version. -func SetOwnerReference(owner, object metav1.Object, scheme *runtime.Scheme) error { +func SetOwnerReference(owner, object metav1.Object, scheme *runtime.Scheme, opts ...OwnerReferenceOption) error { // Validate the owner. ro, ok := owner.(runtime.Object) if !ok { @@ -115,6 +128,9 @@ func SetOwnerReference(owner, object metav1.Object, scheme *runtime.Scheme) erro UID: owner.GetUID(), Name: owner.GetName(), } + for _, opt := range opts { + opt(&ref) + } // Update owner references and return. upsertOwnerRef(ref, object)