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Add policy for /usr/libexec/samba/samba-bgqd #2301

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merged 1 commit into from
Oct 25, 2024
Merged

Add policy for /usr/libexec/samba/samba-bgqd #2301

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2 changes: 2 additions & 0 deletions policy/modules/contrib/samba.fc
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@
/usr/lib/systemd/system/winbind.* -- gen_context(system_u:object_r:samba_unit_file_t,s0)

/usr/libexec/samba/rpcd_lsad -- gen_context(system_u:object_r:winbind_rpcd_exec_t,s0)
/usr/libexec/samba/samba-bgqd -- gen_context(system_u:object_r:samba_bgqd_exec_t,s0)
/usr/libexec/samba/samba-dcerpcd -- gen_context(system_u:object_r:winbind_rpcd_exec_t,s0)

/usr/bin/net -- gen_context(system_u:object_r:samba_net_exec_t,s0)
Expand Down Expand Up @@ -67,6 +68,7 @@

/run/samba/winbindd(/.*)? gen_context(system_u:object_r:winbind_var_run_t,s0)
/run/winbindd(/.*)? gen_context(system_u:object_r:winbind_var_run_t,s0)
/run/samba-bgqd.pid -- gen_context(system_u:object_r:samba_bgqd_var_run_t,s0)

/var/spool/samba(/.*)? gen_context(system_u:object_r:samba_spool_t,s0)

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19 changes: 19 additions & 0 deletions policy/modules/contrib/samba.if
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Original file line number Diff line number Diff line change
Expand Up @@ -1118,3 +1118,22 @@ interface(`samba_domtrans_winbind_rpcd',`
corecmd_search_bin($1)
domtrans_pattern($1, winbind_rpcd_exec_t, winbind_rpcd_t)
')

########################################
## <summary>
## Execute samba-bgqd in the caller domain.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed accesss.
## </summary>
## </param>
#
interface(`samba_exec_bgqd',`
gen_require(`
type samba_bgqd_exec_t;
')

corecmd_search_bin($1)
can_exec($1, samba_bgqd_exec_t)
')
41 changes: 41 additions & 0 deletions policy/modules/contrib/samba.te
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Original file line number Diff line number Diff line change
Expand Up @@ -134,6 +134,13 @@ type samba_gpupdate_exec_t;
application_domain(samba_gpupdate_t, samba_gpupdate_exec_t)
role system_r types samba_gpupdate_t;

type samba_bgqd_t;
type samba_bgqd_exec_t;
init_daemon_domain(samba_bgqd_t, samba_bgqd_exec_t)

type samba_bgqd_var_run_t;
files_pid_file(samba_bgqd_var_run_t)

type smbcontrol_t;
type smbcontrol_exec_t;
application_domain(smbcontrol_t, smbcontrol_exec_t)
Expand Down Expand Up @@ -300,6 +307,37 @@ optional_policy(`
certmonger_domtrans(samba_gpupdate_t)
')

########################################
#
# samba-bgqd local policy
#

permissive samba_bgqd_t;

allow samba_bgqd_t self:netlink_route_socket r_netlink_socket_perms;
allow samba_bgqd_t self:tcp_socket create_stream_socket_perms;
allow samba_bgqd_t self:udp_socket create_socket_perms;
allow samba_bgqd_t self:unix_dgram_socket create_socket_perms;

read_files_pattern(samba_bgqd_t, samba_etc_t, samba_etc_t)
allow samba_bgqd_t samba_log_t:dir create_dir_perms;
manage_files_pattern(samba_bgqd_t, samba_log_t, samba_log_t)
allow samba_bgqd_t samba_var_t:dir create_dir_perms;
allow samba_bgqd_t samba_var_t:file map;
manage_files_pattern(samba_bgqd_t, samba_var_t, samba_var_t)
manage_sock_files_pattern(samba_bgqd_t, samba_var_t, samba_var_t)

manage_files_pattern(samba_bgqd_t, samba_bgqd_var_run_t, samba_bgqd_var_run_t)
files_pid_filetrans(samba_bgqd_t, samba_bgqd_var_run_t, file)

kernel_dgram_send(samba_bgqd_t)

corenet_tcp_connect_ipp_port(samba_bgqd_t)

optional_policy(`
auth_read_passwd_file(samba_bgqd_t)
')

########################################
#
# smbd Local policy
Expand Down Expand Up @@ -1332,11 +1370,14 @@ optional_policy(`
allow smbd_t winbind_rpcd_t:process noatsecure;
allow smbd_t winbind_rpcd_t:unix_stream_socket connectto;
allow winbind_t winbind_rpcd_t:unix_stream_socket connectto;
allow winbind_rpcd_t samba_bgqd_t:unix_dgram_socket sendto;
allow winbind_rpcd_t nmbd_t:unix_dgram_socket sendto;
allow winbind_rpcd_t smbd_t:unix_dgram_socket sendto;
allow winbind_rpcd_t winbind_t:unix_dgram_socket sendto;
allow winbind_rpcd_t winbind_t:unix_stream_socket connectto;

allow winbind_rpcd_t samba_bgqd_var_run_t:file write_file_perms;

samba_domtrans_winbind_rpcd(smbd_t)
samba_domtrans_winbind_rpcd(winbind_t)

Expand Down