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main.cpp
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main.cpp
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/**
* \file flow_meter.cpp
* \brief Main file of the flow_meter module.
* \author Vaclav Bartos <[email protected]>
* \author Jiri Havranek <[email protected]>
* \date 2014
* \date 2015
* \date 2016
*/
/*
* Copyright (C) 2014-2016 CESNET
*
* LICENSE TERMS
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name of the Company nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* ALTERNATIVELY, provided that this notice is retained in full, this
* product may be distributed under the terms of the GNU General Public
* License (GPL) version 2 or later, in which case the provisions
* of the GPL apply INSTEAD OF those given above.
*
* This software is provided ``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 company 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.
*
*/
#include <config.h>
#include <getopt.h>
#include <unistd.h>
#include <string>
#include <iostream>
#include <future>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <signal.h>
#include <iomanip>
#include <stdlib.h>
#include <thread>
#ifdef WITH_NEMEA
#include "fields.h"
#endif
#include "ipfixprobe.h"
#include "packet.h"
#include "flowifc.h"
#include "pcapreader.h"
#include "nhtflowcache.h"
#include "unirecexporter.h"
#include "ipfixexporter.h"
#include "stats.h"
#include "conversion.h"
#include "ring.h"
#include "httpplugin.h"
#include "rtspplugin.h"
#include "tlsplugin.h"
#include "dnsplugin.h"
#include "sipplugin.h"
#include "ntpplugin.h"
#include "arpplugin.h"
#include "passivednsplugin.h"
#include "smtpplugin.h"
#include "pstatsplugin.h"
#include "ovpnplugin.h"
#include "ssdpplugin.h"
#include "dnssdplugin.h"
#include "idpcontentplugin.h"
#include "netbiosplugin.h"
using namespace std;
#ifdef WITH_NEMEA
trap_module_info_t *module_info = NULL;
#endif
int stop = 0;
int terminate_export = 0;
int terminate_storage = 0;
int terminate_input = 0;
#define MODULE_BASIC_INFO(BASIC) \
BASIC("flow_meter", "Convert packets from PCAP file or network interface into biflow records.", 0, -1)
#define SUPPORTED_PLUGINS_LIST "http,rtsp,tls,dns,sip,ntp,smtp,basic,arp,passivedns,pstats,ssdp,dnssd,ovpn,idpcontent,netbios"
// TODO: remove parameters when using ndp
#define MODULE_PARAMS(PARAM) \
PARAM('p', "plugins", "Activate specified parsing plugins. Output interface for each plugin correspond the order which you specify items in -i and -p param. "\
"For example: \'-i u:a,u:b,u:c -p http,basic,dns\' http traffic will be send to interface u:a, basic flow to u:b etc. If you don't specify -p parameter, flow meter"\
" will require one output interface for basic flow by default. Format: plugin_name[,...] Supported plugins: " SUPPORTED_PLUGINS_LIST \
" Some plugins have features activated with additional parameters. Format: plugin_name[:plugin_param=value[:...]][,...] If plugin does not support parameters, any parameters given will be ignored."\
" Supported plugin parameters are listed in README", required_argument, "string")\
PARAM('c', "count", "Quit after number of packets are captured.", required_argument, "uint32")\
PARAM('h', "help", "Print this help.", no_argument, "none")\
PARAM('I', "interface", "Capture from given network interface. Parameter require interface name (eth0 for example). For nfb interface you can channel after interface delimited by : (/dev/nfb0:1) default is 0", required_argument, "string")\
PARAM('r', "file", "Pcap file to read. - to read from stdin.", required_argument, "string") \
PARAM('n', "no_eof", "Don't send NULL record message when flow_meter exits.", no_argument, "none") \
PARAM('l', "snapshot_len", "Snapshot length when reading packets. Set value between 120-65535.", required_argument, "uint32") \
PARAM('t', "timeout", "Active and inactive timeout in seconds. Format: DOUBLE:DOUBLE. Value default means use default value 300.0:30.0.", required_argument, "string") \
PARAM('s', "cache_size", "Size of flow cache. Parameter is used as an exponent to the power of two. Valid numbers are in range 4-30. default is 17 (131072 records).", required_argument, "string") \
PARAM('S', "cache-statistics", "Print flow cache statistics. NUMBER specifies interval between prints.", required_argument, "float") \
PARAM('P', "pcap-statistics", "Print pcap statistics every 5 seconds. The statistics do not behave the same way on all platforms.", no_argument, "none") \
PARAM('L', "link_bit_field", "Link bit field value.", required_argument, "uint64") \
PARAM('D', "dir_bit_field", "Direction bit field value.", required_argument, "uint8") \
PARAM('F', "filter", "String containing filter expression to filter traffic. See man pcap-filter.", required_argument, "string") \
PARAM('O', "odid", "Send ODID field instead of LINK_BIT_FIELD in unirec message.", no_argument, "none") \
PARAM('x', "ipfix", "Export to IPFIX collector. Format: HOST:PORT or [HOST]:PORT", required_argument, "string") \
PARAM('u', "udp", "Use UDP when exporting to IPFIX collector.", no_argument, "none") \
PARAM('q', "q", "Input queue size.", required_argument, "uint32") \
PARAM('Q', "Q", "Output queue size.", required_argument, "uint32") \
PARAM('V', "version", "Print version.", no_argument, "none")\
PARAM('v', "verbose", "Increase verbosity of the output, it can be duplicated like -vv / -vvv.", no_argument, "none")\
#define PRINT_HELP_PARAM(p_short_opt, p_long_opt, p_description, p_required_argument, p_argument_type) \
if (p_required_argument == no_argument) { \
printf(" -%c, --%s\t\t\t%s\n", p_short_opt, p_long_opt, p_description); \
} else { \
printf(" -%c, --%s=%s\t\t%s\n", p_short_opt, p_long_opt, p_argument_type, p_description); \
}
/**
* \brief Parse input plugin settings.
* \param [in] settings String containing input plugin settings.
* \param [out] plugins Array for storing active plugins.
* \param [in] module_options Options for plugin initialization.
* \return Number of items specified in input string.
*/
int parse_plugin_settings(const string &settings, vector<FlowCachePlugin *> &plugins, options_t &module_options)
{
string proto, params;
size_t begin = 0, end = 0, begin_params = 0;
int ifc_num = 0;
while (end != string::npos) { // Iterate through user specified settings.
end = settings.find(",", begin);
proto = settings.substr(begin, (end == string::npos ? (settings.length() - begin) : (end - begin)));
begin_params = proto.find(":");
params = proto.substr((begin_params == string::npos ? (proto.length()) : (begin_params + 1)), proto.length());
proto = (begin_params == string::npos ? (proto) : (proto.substr(0, begin_params)));
if (proto == "basic") {
module_options.basic_ifc_num = ifc_num++; // Enable parsing basic flow (flow without any plugin output).
} else if (proto == "http") {
vector<plugin_opt> tmp;
// Register extension header identifiers.
// New configuration support sending plugin output to specific libtrap interface (e.g. http to ifc 1, dns to ifc 2...)
// so it is necessary store extension-header -> output interface mapping within plugin.
tmp.push_back(plugin_opt("http", http, ifc_num++));
plugins.push_back(new HTTPPlugin(module_options, tmp));
} else if (proto == "rtsp") {
vector<plugin_opt> tmp;
tmp.push_back(plugin_opt("rtsp", rtsp, ifc_num++));
plugins.push_back(new RTSPPlugin(module_options, tmp));
} else if (proto == "tls") {
vector<plugin_opt> tmp;
tmp.push_back(plugin_opt("tls", tls, ifc_num++));
plugins.push_back(new TLSPlugin(module_options, tmp));
} else if (proto == "dns"){
vector<plugin_opt> tmp;
tmp.push_back(plugin_opt("dns", dns, ifc_num++));
plugins.push_back(new DNSPlugin(module_options, tmp));
} else if (proto == "sip"){
vector<plugin_opt> tmp;
tmp.push_back(plugin_opt("sip", sip, ifc_num++));
plugins.push_back(new SIPPlugin(module_options, tmp));
} else if (proto == "ntp"){
vector<plugin_opt> tmp;
tmp.push_back(plugin_opt("ntp", ntp, ifc_num++));
plugins.push_back(new NTPPlugin(module_options, tmp));
} else if (proto == "smtp"){
vector<plugin_opt> tmp;
tmp.push_back(plugin_opt("smtp", smtp, ifc_num++));
plugins.push_back(new SMTPPlugin(module_options, tmp));
} else if (proto == "arp"){
vector<plugin_opt> tmp;
tmp.push_back(plugin_opt("arp", arp, ifc_num++));
plugins.push_back(new ARPPlugin(module_options, tmp));
} else if (proto == "passivedns"){
vector<plugin_opt> tmp;
tmp.push_back(plugin_opt("passivedns", passivedns, ifc_num++));
plugins.push_back(new PassiveDNSPlugin(module_options, tmp));
} else if (proto == "pstats"){
vector<plugin_opt> tmp;
tmp.push_back(plugin_opt("pstats", pstats, ifc_num++));
plugins.push_back(new PSTATSPlugin(module_options, tmp));
} else if (proto == "ovpn"){
vector<plugin_opt> tmp;
tmp.push_back(plugin_opt("ovpn", ovpn, ifc_num++));
plugins.push_back(new OVPNPlugin(module_options, tmp));
} else if (proto == "idpcontent"){
vector<plugin_opt> tmp;
tmp.push_back(plugin_opt("idpcontent", idpcontent, ifc_num++));
plugins.push_back(new IDPCONTENTPlugin(module_options, tmp));
} else if (proto == "ssdp"){
vector<plugin_opt> tmp;
tmp.push_back(plugin_opt("ssdp", ssdp, ifc_num++));
plugins.push_back(new SSDPPlugin(module_options, tmp));
} else if (proto == "dnssd"){
vector<plugin_opt> tmp;
tmp.push_back(plugin_opt("dnssd", dnssd, ifc_num++, params));
plugins.push_back(new DNSSDPlugin(module_options, tmp));
} else if (proto == "netbios"){
vector<plugin_opt> tmp;
tmp.push_back(plugin_opt("netbios", netbios, ifc_num++, params));
plugins.push_back(new NETBIOSPlugin(module_options, tmp));
} else {
fprintf(stderr, "Unsupported plugin: \"%s\"\n", proto.c_str());
return -1;
}
begin = end + 1;
}
return ifc_num;
}
#ifdef WITH_NEMEA
/**
* \brief Count trap interfaces.
* \param [in] argc Number of parameters.
* \param [in] argv Pointer to parameters.
* \return Number of trap interfaces.
*/
int count_trap_interfaces(int argc, char *argv[])
{
char *interfaces = NULL;
for (int i = 1; i < argc; i++) { // Find argument for param -i.
if (!strcmp(argv[i], "-i") && i + 1 < argc) {
interfaces = argv[i + 1];
}
}
int ifc_cnt = 1;
if (interfaces != NULL) {
while(*interfaces) { // Count number of specified interfaces.
if (*(interfaces++) == ',') {
ifc_cnt++;
}
}
return ifc_cnt;
}
return ifc_cnt;
}
#endif
struct InputStats {
uint64_t packets;
uint64_t parsed;
uint64_t bytes;
uint64_t qtime;
bool error;
};
void input_thread(PacketReceiver *packetloader, PacketBlock *pkts, size_t pkt_cnt, ipx_ring_t *queue, std::promise<InputStats> *threadOutput)
{
struct timespec start;
struct timespec end;
size_t i = 0;
int ret;
InputStats stats = {0, 0, 0, 0, false};
while (!terminate_input) {
PacketBlock *block = &pkts[i];
block->cnt = 0;
block->bytes = 0;
ret = packetloader->get_pkt(*block);
if (ret <= 0) {
stats.error = ret < 0;
break;
} else if (ret == 3) { /* Process timeout. */
usleep(1);
continue;
} else if (ret == 2) {
stats.bytes += block->bytes;
clock_gettime(CLOCK_MONOTONIC_COARSE, &start);
ipx_ring_push(queue, (void *) block);
clock_gettime(CLOCK_MONOTONIC_COARSE, &end);
int64_t time = end.tv_nsec - start.tv_nsec;
if (start.tv_sec != end.tv_sec) {
time += 1000000000;
}
stats.qtime += time;
i = (i + 1) % pkt_cnt;
}
}
stats.parsed = packetloader->parsed;
stats.packets = packetloader->processed;
threadOutput->set_value(stats);
}
struct StorageStats {
bool error;
};
void storage_thread(FlowCache *cache, ipx_ring_t *queue, std::promise<StorageStats> *threadOutput)
{
StorageStats stats = {false};
while (1) {
PacketBlock *block = static_cast<PacketBlock *>(ipx_ring_pop(queue));
if (block) {
for (unsigned i = 0; i < block->cnt; i++) {
cache->put_pkt(block->pkts[i]);
}
} else if (terminate_storage && !ipx_ring_cnt(queue)) {
break;
} else {
cache->export_expired(time(NULL));
usleep(1);
}
}
threadOutput->set_value(stats);
}
struct OutputStats {
uint64_t biflows;
uint64_t bytes;
uint64_t packets;
uint64_t dropped;
bool error;
};
void export_thread(FlowExporter *exp, ipx_ring_t *queue, std::promise<OutputStats> *threadOutput)
{
struct timespec last;
struct timespec now;
OutputStats stats = {0, 0, 0, 0, false};
clock_gettime(CLOCK_MONOTONIC_COARSE, &last);
while (1) {
clock_gettime(CLOCK_MONOTONIC_COARSE, &now);
Flow *flow = static_cast<Flow *>(ipx_ring_pop(queue));
if (flow) {
stats.biflows++;
stats.bytes += flow->src_octet_total_length + flow->dst_octet_total_length;
stats.packets += flow->src_pkt_total_cnt + flow->dst_pkt_total_cnt;
exp->export_flow(*flow);
} else if (terminate_export && !ipx_ring_cnt(queue)) {
break;
}
if (now.tv_sec - last.tv_sec > 1) {
last = now;
exp->flush();
}
}
stats.dropped = exp->dropped;
threadOutput->set_value(stats);
}
/**
* \brief Convert double to struct timeval.
* \param [in] value Value to convert.
* \param [out] time Struct for storing converted time.
*/
static inline void double_to_timeval(double value, struct timeval &time)
{
time.tv_sec = (long) value;
time.tv_usec = (value - (long) value) * 1000000;
}
/**
* \brief Exit and print an error message.
* \param [in] e String containing an error message
* \return EXIT_FAILURE
*/
inline int error(const string &e)
{
cerr << "flow_meter: " << e << endl;
return EXIT_FAILURE;
}
/**
* \brief Signal handler function.
* \param [in] sig Signal number.
*/
void signal_handler(int sig)
{
stop = 1;
}
#ifndef WITH_NEMEA
typedef struct module_param_s {
char short_opt;
char *long_opt;
char *description;
int param_required_argument;
char *argument_type;
} module_param_t;
#define GEN_LONG_OPT_STRUCT_LINE(p_short_opt, p_long_opt, p_description, p_required_argument, p_argument_type) \
{p_long_opt, p_required_argument, 0, p_short_opt},
#define GEN_LONG_OPT_STRUCT(PARAMS) \
static struct option long_options[] __attribute__((used)) = { \
PARAMS(GEN_LONG_OPT_STRUCT_LINE) \
{0, 0, 0, 0} \
}
#define FILL_PARAMS(p_short_opt, p_long_opt, p_description, p_required_argument, p_argument_type) \
module_getopt_string[optidx++] = p_short_opt; \
if (p_required_argument == required_argument) {module_getopt_string[optidx++] = ':';}
#endif
struct WorkPipeline {
struct {
PacketReceiver *plugin;
std::thread *thread;
std::promise<InputStats> *promise;
} input;
struct {
FlowCache *plugin;
std::thread *thread;
std::promise<StorageStats> *promise;
plugins_t plugins;
} storage;
ipx_ring_t *queue;
};
struct ExporterWorker {
FlowExporter *plugin;
std::thread *thread;
std::promise<OutputStats> *promise;
ipx_ring_t *queue;
};
int main(int argc, char *argv[])
{
plugins_t plugin_wrapper;
options_t options;
options.flow_cache_size = DEFAULT_FLOW_CACHE_SIZE;
options.flow_line_size = DEFAULT_FLOW_LINE_SIZE;
double_to_timeval(DEFAULT_INACTIVE_TIMEOUT, options.inactive_timeout);
double_to_timeval(DEFAULT_ACTIVE_TIMEOUT, options.active_timeout);
options.print_stats = true; /* Plugins, FlowCache stats ON. */
options.print_pcap_stats = false;
options.basic_ifc_num = 0;
options.snaplen = 0;
options.eof = true;
options.flow_cache_qsize = 16536;
options.input_qsize = 64;
options.input_pktblock_size = 32;
#ifdef WITH_NEMEA
bool odid = false;
#else
GEN_LONG_OPT_STRUCT(MODULE_PARAMS);
#endif
bool export_unirec = false, export_ipfix = false, help = false, udp = false;
int ifc_cnt = 0, verbose = -1;
uint64_t link = 1;
uint32_t pkt_limit = 0; /* Limit of packets for packet parser. 0 = no limit */
uint8_t dir = 0;
string host = "", port = "", filter = "";
for (int i = 0; i < argc; i++) {
if (!strcmp(argv[i], "-i")) {
export_unirec = true;
} else if (!strcmp(argv[i], "-x") || !strcmp(argv[i], "--ipfix")) {
export_ipfix = true;
} else if (!strcmp(argv[i], "-h") || !strcmp(argv[i], "--help")) {
help = true;
} else if (!strcmp(argv[i], "-V") || !strcmp(argv[i], "--version")) {
help = true;
printf("%s (%s) %s\n", PACKAGE, PACKAGE_NAME, VERSION);
puts ("");
return 0;
} else if (!strcmp(argv[i], "-v") || !strcmp(argv[i], "-vv") || !strcmp(argv[i], "-vvv")) {
if (verbose >= 0) {
for (int j = verbose; j + 1 < argc; j++) {
argv[j] = argv[j + 1];
}
argc--;
verbose = --i;
} else {
verbose = i;
}
}
}
#ifdef WITH_NEMEA
INIT_MODULE_INFO_STRUCT(MODULE_BASIC_INFO, MODULE_PARAMS);
#else
char module_getopt_string[100];
int optidx = 0;
MODULE_PARAMS(FILL_PARAMS)
#endif
if ((export_unirec && !export_ipfix) || help) {
#ifdef WITH_NEMEA
/* TRAP initialization */
ifc_cnt = count_trap_interfaces(argc, argv);
module_info->num_ifc_out = ifc_cnt;
TRAP_DEFAULT_INITIALIZATION(argc, argv, *module_info);
#else
puts("ipfixprobe version " VERSION);
puts("ipfixprobe is an IPFIX flow exporter support supporting various custom IPFIX elements.");
puts("");
puts("Usage: ipfixprobe [-I interface] -x host:port [-u] [-p " SUPPORTED_PLUGINS_LIST "] [-r file]");
puts("");
MODULE_PARAMS(PRINT_HELP_PARAM)
#endif
} else if (verbose >= 0) {
for (int i = verbose; i + 1 < argc; i++) {
argv[i] = argv[i + 1];
}
argc--;
}
if (export_unirec && export_ipfix) {
#ifdef WITH_NEMEA
FREE_MODULE_INFO_STRUCT(MODULE_BASIC_INFO, MODULE_PARAMS);
TRAP_DEFAULT_FINALIZATION();
#endif
return error("Cannot export to IPFIX and Unirec at the same time.");
} else if (!export_unirec && !export_ipfix && !help) {
#ifdef WITH_NEMEA
FREE_MODULE_INFO_STRUCT(MODULE_BASIC_INFO, MODULE_PARAMS);
#endif
return error("Specify exporter output Unirec (-i) or IPFIX (-x/--ipfix).");
}
signal(SIGTERM, signal_handler);
signal(SIGINT, signal_handler);
signal(SIGPIPE, SIG_IGN);
signed char opt;
while ((opt = getopt_long(argc, argv, module_getopt_string, long_options, NULL)) != -1) {
switch (opt) {
case 'p':
{
options.basic_ifc_num = -1;
int ret = parse_plugin_settings(string(optarg), plugin_wrapper.plugins, options);
if (ret < 0) {
#ifdef WITH_NEMEA
TRAP_DEFAULT_FINALIZATION();
#endif
return error("Invalid argument for option -p");
}
if (ifc_cnt && ret != ifc_cnt) {
#ifdef WITH_NEMEA
FREE_MODULE_INFO_STRUCT(MODULE_BASIC_INFO, MODULE_PARAMS);
TRAP_DEFAULT_FINALIZATION();
#endif
return error("Number of output ifc interfaces does not correspond number of items in -p parameter.");
}
}
break;
case 'c':
{
uint32_t tmp;
if (!str_to_uint32(optarg, tmp)) {
#ifdef WITH_NEMEA
FREE_MODULE_INFO_STRUCT(MODULE_BASIC_INFO, MODULE_PARAMS);
TRAP_DEFAULT_FINALIZATION();
#endif
return error("Invalid argument for option -c");
}
pkt_limit = tmp;
}
break;
case 'I':
options.interface.push_back(string(optarg));
break;
case 't':
{
if (!strcmp(optarg, "default")) {
break;
}
char *check;
check = strchr(optarg, ':');
if (check == NULL) {
#ifdef WITH_NEMEA
FREE_MODULE_INFO_STRUCT(MODULE_BASIC_INFO, MODULE_PARAMS);
TRAP_DEFAULT_FINALIZATION();
#endif
return error("Invalid argument for option -t");
}
*check = '\0';
double tmp1, tmp2;
if (!str_to_double(optarg, tmp1) || !str_to_double(check + 1, tmp2) || tmp1 < 0 || tmp2 < 0) {
#ifdef WITH_NEMEA
FREE_MODULE_INFO_STRUCT(MODULE_BASIC_INFO, MODULE_PARAMS);
TRAP_DEFAULT_FINALIZATION();
#endif
return error("Invalid argument for option -t");
}
double_to_timeval(tmp1, options.active_timeout);
double_to_timeval(tmp2, options.inactive_timeout);
}
break;
case 'r':
options.pcap_file.push_back(string(optarg));
break;
case 'n':
options.eof = false;
break;
case 'l':
if (!str_to_uint32(optarg, options.snaplen)) {
#ifdef WITH_NEMEA
FREE_MODULE_INFO_STRUCT(MODULE_BASIC_INFO, MODULE_PARAMS);
TRAP_DEFAULT_FINALIZATION();
#endif
return error("Invalid argument for option -l");
}
if (options.snaplen < MIN_SNAPLEN) {
printf("Setting snapshot length to minimum value %d.\n", MIN_SNAPLEN);
options.snaplen = MIN_SNAPLEN;
} else if (options.snaplen > MAX_SNAPLEN) {
printf("Setting snapshot length to maximum value %d.\n", MAX_SNAPLEN);
options.snaplen = MAX_SNAPLEN;
}
break;
case 's':
if (strcmp(optarg, "default")) {
uint32_t tmp;
if (!str_to_uint32(optarg, tmp) || tmp <= 3 || tmp > 30) {
#ifdef WITH_NEMEA
FREE_MODULE_INFO_STRUCT(MODULE_BASIC_INFO, MODULE_PARAMS);
TRAP_DEFAULT_FINALIZATION();
#endif
return error("Invalid argument for option -s");
}
options.flow_cache_size = (1 << tmp);
} else {
options.flow_cache_size = DEFAULT_FLOW_CACHE_SIZE;
}
break;
case 'S':
{
double tmp;
if (!str_to_double(optarg, tmp)) {
#ifdef WITH_NEMEA
FREE_MODULE_INFO_STRUCT(MODULE_BASIC_INFO, MODULE_PARAMS);
TRAP_DEFAULT_FINALIZATION();
#endif
return error("Invalid argument for option -S");
}
double_to_timeval(tmp, options.cache_stats_interval);
options.print_stats = false; /* Plugins, FlowCache stats OFF.*/
}
break;
case 'P':
options.print_pcap_stats = true;
break;
case 'L':
if (!str_to_uint64(optarg, link)) {
#ifdef WITH_NEMEA
FREE_MODULE_INFO_STRUCT(MODULE_BASIC_INFO, MODULE_PARAMS);
TRAP_DEFAULT_FINALIZATION();
#endif
return error("Invalid argument for option -L");
}
break;
case 'D':
if (!str_to_uint8(optarg, dir)) {
#ifdef WITH_NEMEA
FREE_MODULE_INFO_STRUCT(MODULE_BASIC_INFO, MODULE_PARAMS);
TRAP_DEFAULT_FINALIZATION();
#endif
return error("Invalid argument for option -D");
}
break;
case 'F':
filter = string(optarg);
break;
case 'O':
#ifdef WITH_NEMEA
odid = true;
#endif
break;
case 'x':
{
host = optarg;
size_t tmp = host.find_last_of(":");
if (tmp == string::npos) {
#ifdef WITH_NEMEA
FREE_MODULE_INFO_STRUCT(MODULE_BASIC_INFO, MODULE_PARAMS);
TRAP_DEFAULT_FINALIZATION();
#endif
return error("Invalid argument for option -x");
}
port = string(host, tmp + 1);
host = host.erase(tmp);
trim_str(host);
trim_str(port);
if (host == "" || port == "") {
#ifdef WITH_NEMEA
FREE_MODULE_INFO_STRUCT(MODULE_BASIC_INFO, MODULE_PARAMS);
TRAP_DEFAULT_FINALIZATION();
#endif
return error("Invalid argument for option -x");
}
if (host[0] == '[' && host[host.size() - 1] == ']') {
host = host.erase(0, 1);
host = host.erase(host.size() - 1, 1);
}
}
break;
case 'u':
udp = true;
break;
case 'q':
{
if (!strcmp(optarg, "default")) {
break;
}
uint32_t tmp;
if (!str_to_uint32(optarg, tmp) || tmp == 0) {
#ifdef WITH_NEMEA
FREE_MODULE_INFO_STRUCT(MODULE_BASIC_INFO, MODULE_PARAMS);
TRAP_DEFAULT_FINALIZATION();
#endif
return error("Invalid argument for option -q");
}
options.input_qsize = tmp;
}
break;
case 'Q':
{
if (!strcmp(optarg, "default")) {
break;
}
uint32_t tmp;
if (!str_to_uint32(optarg, tmp) || tmp == 0) {
#ifdef WITH_NEMEA
FREE_MODULE_INFO_STRUCT(MODULE_BASIC_INFO, MODULE_PARAMS);
TRAP_DEFAULT_FINALIZATION();
#endif
return error("Invalid argument for option -Q");
}
options.flow_cache_qsize = tmp;
}
break;
default:
#ifdef WITH_NEMEA
FREE_MODULE_INFO_STRUCT(MODULE_BASIC_INFO, MODULE_PARAMS);
TRAP_DEFAULT_FINALIZATION();
#endif
if (!help) {
return error("Invalid arguments");
} else {
return 0;
}
}
}
#ifdef WITH_NEMEA
FREE_MODULE_INFO_STRUCT(MODULE_BASIC_INFO, MODULE_PARAMS);
#endif
if (options.interface.size() && options.pcap_file.size()) {
#ifdef WITH_NEMEA
TRAP_DEFAULT_FINALIZATION();
#endif
return error("Cannot capture from file and from interface at the same time.");
} else if (options.interface.size() == 0 && options.pcap_file.size() == 0) {
#ifdef WITH_NEMEA
TRAP_DEFAULT_FINALIZATION();
#endif
return error("Specify capture interface (-I) or file for reading (-r). ");
}
bool parse_every_pkt = false;
uint32_t max_payload_size = 0;
for (unsigned int i = 0; i < plugin_wrapper.plugins.size(); i++) {
/* Check if plugins need all packets. */
if (!plugin_wrapper.plugins[i]->include_basic_flow_fields()) {
parse_every_pkt = true;
}
/* Get max payload size from plugins. */
if (max_payload_size < plugin_wrapper.plugins[i]->max_payload_length()) {
max_payload_size = plugin_wrapper.plugins[i]->max_payload_length();
}
}
if (options.snaplen == 0) { /* Check if user specified snapshot length. */
int max_snaplen = max_payload_size + MIN_SNAPLEN;
if (max_snaplen > MAXPCKTSIZE) {
max_snaplen = MAXPCKTSIZE;
}
options.snaplen = max_snaplen;
}
if (!options.print_stats) {
plugin_wrapper.plugins.push_back(new StatsPlugin(options.cache_stats_interval, cout));
}
FlowExporter *exporter;
if (export_unirec) {
#ifdef WITH_NEMEA
if (options.interface.size()) {
for (int i = 0; i < ifc_cnt; i++) {
trap_ifcctl(TRAPIFC_OUTPUT, i, TRAPCTL_SETTIMEOUT, TRAP_HALFWAIT);
}
}
UnirecExporter *ipxe = new UnirecExporter(options.eof);
if (ipxe->init(plugin_wrapper.plugins, ifc_cnt, options.basic_ifc_num, link, dir, odid) != 0) {
TRAP_DEFAULT_FINALIZATION();
return error("Unable to initialize UnirecExporter.");
}
exporter = ipxe;
#endif
} else {
IPFIXExporter *ipxe = new IPFIXExporter();
if (ipxe->init(plugin_wrapper.plugins, options.basic_ifc_num, link, host, port, udp, (verbose >= 0), dir) != 0) {
#ifdef WITH_NEMEA
TRAP_DEFAULT_FINALIZATION();
#endif
return error("Unable to initialize IPFIXExporter.");
}
exporter = ipxe;
}
ipx_ring_t *export_queue = ipx_ring_init(options.flow_cache_qsize, 1);
if (export_queue == NULL) {
return error("Unable to initialize ring buffer.");
}
std::vector<WorkPipeline> pipelines;
std::vector<ExporterWorker> exporters;
std::vector<std::future<InputStats>> inputFutures;
std::vector<std::future<StorageStats>> storageFutures;
std::vector<std::future<OutputStats>> outputFutures;
std::promise<OutputStats> *exporter_stats = new std::promise<OutputStats>();
ExporterWorker tmp = {
exporter,
new std::thread(export_thread, exporter, export_queue, exporter_stats),
exporter_stats,
export_queue
};
exporters.push_back(tmp);
outputFutures.push_back(exporter_stats->get_future());
size_t worker_cnt = options.interface.size() ? options.interface.size() : options.pcap_file.size();
size_t blocks_cnt = (options.input_qsize + 1) * worker_cnt;
size_t pkts_cnt = blocks_cnt * options.input_pktblock_size;
size_t pkt_data_cnt = pkts_cnt * (MAXPCKTSIZE + 1);
bool livecapture = options.interface.size();
PacketBlock *blocks = new PacketBlock[blocks_cnt];
Packet *pkts = new Packet[pkts_cnt];
char *pkt_data = new char[pkt_data_cnt];
for (unsigned i = 0; i < blocks_cnt; i++) {
blocks[i].pkts = pkts + i * options.input_pktblock_size;
blocks[i].cnt = 0;
blocks[i].size = options.input_pktblock_size;
for (unsigned j = 0; j < options.input_pktblock_size; j++) {
blocks[i].pkts[j].packet = (char *) (pkt_data + (MAXPCKTSIZE + 1) * (j + i * options.input_pktblock_size));
}
}
int ret = EXIT_SUCCESS;
for (unsigned i = 0; i < worker_cnt; i++) {
#ifdef HAVE_NDP
PacketReceiver *packetloader = new NdpPacketReader(options);
#else /* HAVE_NDP */
PacketReceiver *packetloader = new PcapReader(options);
#endif /* HAVE_NDP */
if (options.interface.size() == 0) {
if (packetloader->open_file(options.pcap_file[i], parse_every_pkt) != 0) {
#ifdef WITH_NEMEA
TRAP_DEFAULT_FINALIZATION();
#endif
error("Can't open input file: " + options.pcap_file[i]);
delete packetloader;
ret = EXIT_FAILURE;
goto EXIT;
}
} else {
if (packetloader->init_interface(options.interface[i], options.snaplen, parse_every_pkt) != 0) {
#ifdef WITH_NEMEA
TRAP_DEFAULT_FINALIZATION();
#endif
error("Unable to initialize libpcap: " + packetloader->error_msg);
delete packetloader;
ret = EXIT_FAILURE;
goto EXIT;
}
}
if (filter != "") {
if (packetloader->set_filter(filter) != 0) {
#ifdef WITH_NEMEA
TRAP_DEFAULT_FINALIZATION();
#endif
error(packetloader->error_msg);
delete packetloader;
ret = EXIT_FAILURE;
goto EXIT;
}
}
FlowCache *flowcache = new NHTFlowCache(options);
flowcache->set_queue(export_queue);
std::vector<FlowCachePlugin *> plugins;
for (unsigned int i = 0; i < plugin_wrapper.plugins.size(); i++) {
FlowCachePlugin *plugin = plugin_wrapper.plugins[i]->copy();
plugins.push_back(plugin);
flowcache->add_plugin(plugin);
}
flowcache->init();
ipx_ring_t *input_queue = ipx_ring_init(options.input_qsize, 0);
if (export_queue == NULL) {
error("Unable to initialize ring buffer.");
delete packetloader;
delete flowcache;
ret = EXIT_FAILURE;
goto EXIT;
}
std::promise<InputStats> *input_stats = new std::promise<InputStats>();
std::promise<StorageStats> *storage_stats = new std::promise<StorageStats>();
inputFutures.push_back(input_stats->get_future());
storageFutures.push_back(storage_stats->get_future());
WorkPipeline tmp = {
{
packetloader,
new std::thread(input_thread, packetloader, &blocks[i * (options.input_qsize + 1)], options.input_qsize + 1, input_queue, input_stats),
input_stats,
},
{
flowcache,
new std::thread(storage_thread, flowcache, input_queue, storage_stats),
storage_stats,
{}
},
input_queue
};
pipelines.push_back(tmp);
pipelines[pipelines.size() - 1].storage.plugins.plugins = plugins;
}
while (!stop) {
bool alldone = true;
for (unsigned i = 0; i < inputFutures.size(); i++) {
std::future_status status = inputFutures[i].wait_for(std::chrono::seconds(0));
if (status == std::future_status::ready && livecapture) {
stop = 1;
break;
} else if (status != std::future_status::ready) {
alldone = false;
}