suricata.c File Reference

#include "suricata-common.h"
#include "suricata.h"
#include "conf.h"
#include "conf-yaml-loader.h"
#include "decode.h"
#include "defrag.h"
#include "flow.h"
#include "stream-tcp.h"
#include "ippair.h"
#include "detect.h"
#include "detect-parse.h"
#include "detect-engine.h"
#include "detect-engine-address.h"
#include "detect-engine-alert.h"
#include "detect-engine-port.h"
#include "detect-engine-tag.h"
#include "detect-engine-threshold.h"
#include "detect-fast-pattern.h"
#include "datasets.h"
#include "feature.h"
#include "flow-bypass.h"
#include "flow-manager.h"
#include "flow-timeout.h"
#include "flow-worker.h"
#include "flow-bit.h"
#include "host-bit.h"
#include "ippair-bit.h"
#include "app-layer.h"
#include "app-layer-parser.h"
#include "app-layer-htp.h"
#include "app-layer-htp-range.h"
#include "output.h"
#include "output-filestore.h"
#include "respond-reject.h"
#include "runmode-af-packet.h"
#include "runmode-af-xdp.h"
#include "runmode-netmap.h"
#include "runmode-unittests.h"
#include "source-nfq.h"
#include "source-nfq-prototypes.h"
#include "source-nflog.h"
#include "source-ipfw.h"
#include "source-pcap.h"
#include "source-pcap-file.h"
#include "source-pcap-file-helper.h"
#include "source-pfring.h"
#include "source-erf-file.h"
#include "source-erf-dag.h"
#include "source-napatech.h"
#include "source-af-packet.h"
#include "source-af-xdp.h"
#include "source-netmap.h"
#include "source-dpdk.h"
#include "source-windivert.h"
#include "source-windivert-prototypes.h"
#include "unix-manager.h"
#include "util-classification-config.h"
#include "util-threshold-config.h"
#include "util-reference-config.h"
#include "tmqh-packetpool.h"
#include "tm-queuehandlers.h"
#include "util-byte.h"
#include "util-conf.h"
#include "util-coredump-config.h"
#include "util-cpu.h"
#include "util-daemon.h"
#include "util-device.h"
#include "util-dpdk.h"
#include "util-ebpf.h"
#include "util-exception-policy.h"
#include "util-host-os-info.h"
#include "util-hugepages.h"
#include "util-ioctl.h"
#include "util-landlock.h"
#include "util-luajit.h"
#include "util-macset.h"
#include "util-misc.h"
#include "util-mpm-hs.h"
#include "util-path.h"
#include "util-pidfile.h"
#include "util-plugin.h"
#include "util-privs.h"
#include "util-profiling.h"
#include "util-proto-name.h"
#include "util-running-modes.h"
#include "util-signal.h"
#include "util-time.h"
#include "util-validate.h"
#include "util-var-name.h"
#include "build-info.h"

Go to the source code of this file.

Macros
#define	DEFAULT_MAX_PENDING_PACKETS   1024

Functions
	SC_ATOMIC_DECLARE (unsigned int, engine_stage)
int	SuriHasSigFile (void)
int	EngineModeIsUnknown (void)
int	EngineModeIsIPS (void)
int	EngineModeIsIDS (void)
void	EngineModeSetIPS (void)
void	EngineModeSetIDS (void)
int	RunmodeIsUnittests (void)
int	SCRunmodeGet (void)
	Get the current run mode. More...
void	SCRunmodeSet (int run_mode)
	Set the current run mode. More...
void	GlobalsInitPreConfig (void)
void	GlobalsDestroy (void)
void	EngineStop (void)
	make sure threads can stop the engine by calling this function. Purpose: pcap file mode needs to be able to tell the engine the file eof is reached. More...
void	EngineDone (void)
	Used to indicate that the current task is done. More...
void	RegisterAllModules (void)
TmEcode	SCLoadYamlConfig (void)
const char *	GetDocURL (void)
const char *	GetProgramVersion (void)
	get string with program version More...
TmEcode	SCParseCommandLine (int argc, char **argv)
void	PreRunInit (const int runmode)
void	PreRunPostPrivsDropInit (const int runmode)
void	PostRunDeinit (const int runmode, struct timeval *start_time)
int	SCStartInternalRunMode (int argc, char **argv)
int	SCFinalizeRunMode (void)
void	PostConfLoadedDetectSetup (SCInstance *suri)
int	PostConfLoadedSetup (SCInstance *suri)
void	SuricataMainLoop (void)
int	InitGlobal (void)
	Global initialization common to all runmodes. More...
void	SuricataPreInit (const char *progname)
void	SuricataInit (void)
void	SuricataShutdown (void)
void	SuricataPostInit (void)

Variables
volatile sig_atomic_t	sigint_count = 0
volatile sig_atomic_t	sighup_count = 0
volatile sig_atomic_t	sigterm_count = 0
volatile sig_atomic_t	sigusr2_count = 0
volatile uint8_t	suricata_ctl_flags = 0
uint8_t	host_mode = SURI_HOST_IS_SNIFFER_ONLY
uint16_t	max_pending_packets
int	g_detect_disabled = 0
bool	sc_set_caps = false
bool	g_system = false
int	g_disable_randomness = 0
uint16_t	g_vlan_mask = 0xffff
uint16_t	g_livedev_mask = 0xffff
bool	g_disable_hashing = false
SystemHugepageSnapshot *	prerun_snap = NULL
bool	g_stats_eps_per_app_proto_errors = false
SCInstance	suricata
int	coverage_unittests
int	g_ut_modules
int	g_ut_covered
int	g_skip_prefilter

Detailed Description

Author

Victor Julien victo.nosp@m.r@in.nosp@m.linia.nosp@m.c.ne.nosp@m.t

Definition in file suricata.c.

Macro Definition Documentation

DEFAULT_MAX_PENDING_PACKETS

#define DEFAULT_MAX_PENDING_PACKETS   1024

Definition at line 170 of file suricata.c.

Function Documentation

EngineDone()

void EngineDone

(

void

)

Used to indicate that the current task is done.

This is mainly used by pcap-file to tell it has finished to treat a pcap files when running in unix-socket mode.

Definition at line 459 of file suricata.c.

References suricata_ctl_flags, and SURICATA_DONE.

EngineModeIsIDS()

int EngineModeIsIDS

(

void

)

Definition at line 237 of file suricata.c.

References DEBUG_VALIDATE_BUG_ON.

EngineModeIsIPS()

int EngineModeIsIPS

(

void

)

Definition at line 231 of file suricata.c.

References DEBUG_VALIDATE_BUG_ON.

Referenced by AlertFastLogger(), AlertJsonHeader(), CaptureStatsSetup(), CaptureStatsUpdate(), EveAddVerdict(), ExceptionPolicyParse(), FlowHandlePacketUpdate(), and StreamTcpInitConfig().

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EngineModeIsUnknown()

int EngineModeIsUnknown

(

void

)

Definition at line 226 of file suricata.c.

Referenced by PostConfLoadedSetup().

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EngineModeSetIDS()

void EngineModeSetIDS

(

void

)

Definition at line 248 of file suricata.c.

Referenced by ListAppLayerProtocols(), ListKeywords(), LLVMFuzzerTestOneInput(), PostConfLoadedSetup(), and RunUnittests().

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EngineModeSetIPS()

void EngineModeSetIPS

(

void

)

Definition at line 243 of file suricata.c.

EngineStop()

void EngineStop

(

void

)

make sure threads can stop the engine by calling this function. Purpose: pcap file mode needs to be able to tell the engine the file eof is reached.

Definition at line 448 of file suricata.c.

References suricata_ctl_flags, and SURICATA_STOP.

Referenced by ReceiveErfFileLoop().

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GetDocURL()

const char* GetDocURL

(

void

)

Definition at line 1120 of file suricata.c.

References DOC_URL, GetProgramVersion(), and PROG_VER.

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GetProgramVersion()

const char* GetProgramVersion

(

void

)

get string with program version

Get the program version as passed to us from AC_INIT

Add 'RELEASE' is no '-dev' in the version. Add the REVISION if passed to us.

Possible outputs: release: '5.0.1 RELEASE' dev with rev: '5.0.1-dev (64a789bbf 2019-10-18)' dev w/o rev: '5.0.1-dev'

Definition at line 1141 of file suricata.c.

References PROG_VER, and xstr.

Referenced by GetDocURL().

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GlobalsDestroy()

void GlobalsDestroy

(

void

)

Definition at line 370 of file suricata.c.

References AFPPeersListClean(), AppLayerDeSetup(), AppLayerHtpPrintStats(), ConfDeInit(), DatasetsDestroy(), DatasetsSave(), de_ctx, DetectEngineClearMaster(), DetectEngineDeReference(), DetectEngineGetCurrent(), DetectEngineMoveToFreeList(), DetectParseFreeRegexes(), DPDKCleanupEAL(), FeatureTrackingRelease(), HostShutdown(), HTPAtExitPrintStats(), HTPFreeConfig(), LiveDeviceListClean(), MpmHSGlobalCleanup(), NFQContextsClean(), OutputDeregisterAll(), ParseSizeDeinit(), SCInstance_::pid_filename, SCFree, SCLogDeInitLogModule(), SCPidfileRemove(), SCProtoNameRelease(), suricata, TagDestroyCtx(), TimeDeinit(), TmModuleRunDeInit(), TmqhCleanup(), and VarNameStoreDestroy().

Referenced by main().

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GlobalsInitPreConfig()

void GlobalsInitPreConfig

(

void

)

Definition at line 361 of file suricata.c.

References FrameConfigInit(), SCProtoNameInit(), SCThresholdConfGlobalInit(), SupportFastPatternForSigMatchTypes(), and TimeInit().

Referenced by LLVMFuzzerTestOneInput(), RunUnittests(), and SuricataInit().

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InitGlobal()

int InitGlobal

(

void

)

Global initialization common to all runmodes.

This can be used by fuzz targets.

Definition at line 2875 of file suricata.c.

References ConfInit(), ParseSizeInit(), RunModeRegisterRunModes(), SC_ATOMIC_INIT, SCLogError, SCLogInitLogModule(), SCSetThreadName, suricata_context, tmm_modules, TMM_SIZE, UtilSignalBlock(), UtilSignalHandlerSetup(), and VarNameStoreInit().

Referenced by LLVMFuzzerTestOneInput().

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PostConfLoadedDetectSetup()

void PostConfLoadedDetectSetup

(

SCInstance *

suri

)

Definition at line 2547 of file suricata.c.

References de_ctx, and SCInstance_::disabled_detect.

PostConfLoadedSetup()

int PostConfLoadedSetup

(

SCInstance *

suri

)

This function is meant to contain code that needs to be run once the configuration has been loaded.

Definition at line 2638 of file suricata.c.

References AppLayerSetup(), SCInstance_::capture_plugin_args, SCInstance_::capture_plugin_name, SCInstance_::checksum_validation, ConfGet(), ConfGetBool(), ConfGetNode(), ConfNodeChildValueIsTrue(), ConfSet(), EngineModeIsUnknown(), EngineModeSetIDS(), FatalError, FeatureTrackingRegister(), g_stats_eps_per_app_proto_errors, LiveDeviceFinalize(), LiveDevRegisterExtension(), LiveSetOffloadDisable(), LiveSetOffloadWarn(), MacSetRegisterFlowStorage(), MpmTableSetup(), RegisterFlowBypassInfo(), SCInstance_::run_mode, RUNMODE_AFP_DEV, SCInstance_::runmode_custom_mode, RunModeEngineIsIPS(), SCLogInfo, SCPluginsLoad(), SCReturnInt, SetMasterExceptionPolicy(), SpmTableSetup(), StorageInit(), StringParseUint16(), suricata, and TM_ECODE_FAILED.

Referenced by LLVMFuzzerTestOneInput().

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PostRunDeinit()

void PostRunDeinit	(	const int	runmode,
		struct timeval *	start_time
	)

Definition at line 2277 of file suricata.c.

References FlowDisableFlowManagerThread(), FlowForceReassembly(), PacketPoolInit(), RUNMODE_UNIX_SOCKET, TmThreadDisablePacketThreads(), and TmThreadDisableReceiveThreads().

Referenced by PreRunPostPrivsDropInit(), and SuricataShutdown().

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PreRunInit()

void PreRunInit

(

const int

runmode

)

Definition at line 2226 of file suricata.c.

References AppLayerParserPostStreamSetup(), AppLayerRegisterGlobalCounters(), DefragInit(), FLOW_QUIET, FlowInitConfig(), HttpRangeContainersInit(), IPPairInitConfig(), OutputFilestoreRegisterGlobalCounters(), RUNMODE_UNIX_SOCKET, SCProfilingInit(), SCProfilingKeywordsGlobalInit(), SCProfilingPrefilterGlobalInit(), SCProfilingRulesGlobalInit(), SCProfilingSghsGlobalInit(), StatsInit(), STREAM_VERBOSE, and StreamTcpInitConfig().

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PreRunPostPrivsDropInit()

void PreRunPostPrivsDropInit

(

const int

runmode

)

Definition at line 2255 of file suricata.c.

References DatasetsInit(), PostRunDeinit(), RUNMODE_PCAP_FILE, RUNMODE_UNIX_SOCKET, RunModeInitializeOutputs(), StatsSetupPostConfigPostOutput(), and StatsSetupPostConfigPreOutput().

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RegisterAllModules()

void RegisterAllModules

(

void

)

Definition at line 897 of file suricata.c.

References TmModuleBypassedFlowManagerRegister(), TmModuleDebugList(), TmModuleDecodeAFPRegister(), TmModuleDecodeAFXDPRegister(), TmModuleDecodeDPDKRegister(), TmModuleDecodeErfDagRegister(), TmModuleDecodeErfFileRegister(), TmModuleDecodeIPFWRegister(), TmModuleDecodeNetmapRegister(), TmModuleDecodeNFLOGRegister(), TmModuleDecodeNFQRegister(), TmModuleDecodePcapFileRegister(), TmModuleDecodePcapRegister(), TmModuleDecodePfringRegister(), TmModuleDecodeWinDivertRegister(), TmModuleFlowManagerRegister(), TmModuleFlowRecyclerRegister(), TmModuleFlowWorkerRegister(), TmModuleLoggerRegister(), TmModuleNapatechDecodeRegister(), TmModuleNapatechStreamRegister(), TmModuleReceiveAFPRegister(), TmModuleReceiveAFXDPRegister(), TmModuleReceiveDPDKRegister(), TmModuleReceiveErfDagRegister(), TmModuleReceiveErfFileRegister(), TmModuleReceiveIPFWRegister(), TmModuleReceiveNetmapRegister(), TmModuleReceiveNFLOGRegister(), TmModuleReceiveNFQRegister(), TmModuleReceivePcapFileRegister(), TmModuleReceivePcapRegister(), TmModuleReceivePfringRegister(), TmModuleReceiveWinDivertRegister(), TmModuleRespondRejectRegister(), TmModuleStatsLoggerRegister(), TmModuleUnixManagerRegister(), TmModuleVerdictIPFWRegister(), TmModuleVerdictNFQRegister(), and TmModuleVerdictWinDivertRegister().

Referenced by RunUnittests().

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RunmodeIsUnittests()

int RunmodeIsUnittests

(

void

)

Definition at line 254 of file suricata.c.

References SCInstance_::run_mode, RUNMODE_UNITTEST, and suricata.

Referenced by AppLayerParserConfParserEnabled(), AppLayerProtoDetectConfProtoDetectionEnabledDefault(), DetectEngineThreadCtxInit(), RegisterDNP3Parsers(), RegisterENIPTCPParsers(), RegisterENIPUDPParsers(), RegisterTFTPParsers(), StreamTcpDecrMemuse(), StreamTcpInitConfig(), StreamTcpReassembleDecrMemuse(), StreamTcpThreadCacheReturnSegment(), and StreamTcpThreadCacheReturnSession().

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SC_ATOMIC_DECLARE()

SC_ATOMIC_DECLARE	(	unsigned int	,
		engine_stage
	)

SCFinalizeRunMode()

int SCFinalizeRunMode

(

void

)

Definition at line 2380 of file suricata.c.

References SCInstance_::run_mode, RUNMODE_UNKNOWN, and suricata.

Referenced by main().

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SCLoadYamlConfig()

TmEcode SCLoadYamlConfig

(

void

)

Definition at line 965 of file suricata.c.

References SCInstance_::additional_configs, SCInstance_::conf_filename, ConfGetRootNode(), ConfYamlHandleInclude(), ConfYamlLoadFile(), DEFAULT_CONF_FILE, SCEnter, SCReturnInt, suricata, TM_ECODE_FAILED, and TM_ECODE_OK.

Referenced by main().

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SCParseCommandLine()

TmEcode SCParseCommandLine	(	int	argc,
		char **	argv
	)

Definition at line 1324 of file suricata.c.

References SCInstance_::capture_plugin_args, SCInstance_::capture_plugin_name, ConfSetFinal(), coverage_unittests, engine_analysis, g_disable_randomness, g_skip_prefilter, g_ut_covered, g_ut_modules, LiveRegisterDeviceName(), SCInstance_::pcap_dev, SCInstance_::run_mode, RUNMODE_PFRING, RUNMODE_PLUGIN, SCLogError, strlcpy(), suricata, TM_ECODE_FAILED, and TM_ECODE_OK.

Referenced by main().

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SCRunmodeGet()

int SCRunmodeGet

(

void

)

Get the current run mode.

Definition at line 263 of file suricata.c.

References SCInstance_::run_mode, and suricata.

Referenced by ConfUnixSocketIsEnable(), DPDKCleanupEAL(), DPDKCloseDevice(), DPDKFreeDevice(), RunModeGetMainMode(), and SigLoadSignatures().

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SCRunmodeSet()

void SCRunmodeSet

(

int

run_mode

)

Set the current run mode.

Mainly exposed outside of suricata.c as a unit-test helper.

Definition at line 268 of file suricata.c.

References SCInstance_::run_mode, and suricata.

Referenced by LLVMFuzzerTestOneInput().

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SCStartInternalRunMode()

int SCStartInternalRunMode	(	int	argc,
		char **	argv
	)

Definition at line 2324 of file suricata.c.

References SCInstance_::conf_filename, DEFAULT_CONF_FILE, SCInstance_::keyword_info, ListAppLayerProtocols(), ListKeywords(), SCInstance_::run_mode, RUNMODE_LIST_APP_LAYERS, RUNMODE_LIST_KEYWORDS, RUNMODE_PRINT_VERSION, and suricata.

Referenced by main().

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SuricataInit()

void SuricataInit

(

void

)

Definition at line 2921 of file suricata.c.

References ConfDump(), ConfGetBool(), g_livedev_mask, g_vlan_mask, GlobalsInitPreConfig(), SCInstance_::run_mode, RUNMODE_DUMP_CONFIG, SCLogDebug, and suricata.

Referenced by main().

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SuricataMainLoop()

void SuricataMainLoop

(

void

)

Definition at line 2832 of file suricata.c.

References DetectEngineReload(), DetectEngineReloadIsStart(), DetectEngineReloadSetIdle(), DetectEngineReloadStart(), OutputNotifyFileRotation(), SCLogNotice, sighup_count, sigint_count, sigterm_count, sigusr2_count, suricata, suricata_ctl_flags, SURICATA_STOP, and TmThreadCheckThreadState().

Referenced by main().

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SuricataPostInit()

void SuricataPostInit

(

void

)

Definition at line 3015 of file suricata.c.

References ConfGetBool(), FatalError, geteuid, PacketPoolPostRunmodes(), prerun_snap, SC_ATOMIC_SET, SCLogWarning, SURICATA_RUNTIME, SystemHugepageSnapshotDestroy(), TM_ECODE_FAILED, TM_ECODE_OK, TmThreadContinueThreads(), TmThreadWaitOnThreadInit(), and TmThreadWaitOnThreadRunning().

Referenced by main().

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SuricataPreInit()

void SuricataPreInit

(

const char *

progname

)

Definition at line 2912 of file suricata.c.

Referenced by main().

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SuricataShutdown()

void SuricataShutdown

(

void

)

Definition at line 3004 of file suricata.c.

References PostRunDeinit(), SCInstance_::run_mode, SC_ATOMIC_SET, SCInstance_::start_time, suricata, SURICATA_DEINIT, TmThreadKillThreads(), and UnixSocketKillSocketThread().

Referenced by main().

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SuriHasSigFile()

int SuriHasSigFile

(

void

)

Definition at line 221 of file suricata.c.

References SCInstance_::sig_file, and suricata.

Variable Documentation

coverage_unittests

int coverage_unittests

Definition at line 893 of file suricata.c.

Referenced by SCParseCommandLine(), SigTableRegisterTests(), and TmModuleRegisterTests().

g_detect_disabled

int g_detect_disabled = 0

global indicating if detection is enabled

Definition at line 186 of file suricata.c.

g_disable_hashing

bool g_disable_hashing = false

Definition at line 210 of file suricata.c.

Referenced by FileForceHashParseCfg(), SSLEnableJA3(), and SSLEnableJA4().

g_disable_randomness

int g_disable_randomness = 0

disable randomness to get reproducible results across runs

Definition at line 195 of file suricata.c.

Referenced by RandomGet(), and SCParseCommandLine().

g_livedev_mask

uint16_t g_livedev_mask = 0xffff

determine (without branching) if we include the livedev ids when hashing or comparing flows

Definition at line 206 of file suricata.c.

Referenced by FlowKeyGetHash(), and SuricataInit().

g_skip_prefilter

int g_skip_prefilter

Definition at line 1050 of file detect-engine-mpm.c.

Referenced by RetrieveFPForSig(), and SCParseCommandLine().

g_stats_eps_per_app_proto_errors

bool g_stats_eps_per_app_proto_errors = false

add per-proto app-layer error counters for exception policies stats? disabled by default

Definition at line 216 of file suricata.c.

Referenced by PostConfLoadedSetup().

g_system

bool g_system = false

Definition at line 191 of file suricata.c.

g_ut_covered

int g_ut_covered

Definition at line 895 of file suricata.c.

Referenced by SCParseCommandLine(), SigTableRegisterTests(), and TmModuleRegisterTests().

g_ut_modules

int g_ut_modules

Definition at line 894 of file suricata.c.

Referenced by MpmRegisterTests(), SCParseCommandLine(), SigTableRegisterTests(), and TmModuleRegisterTests().

g_vlan_mask

uint16_t g_vlan_mask = 0xffff

determine (without branching) if we include the vlan_ids when hashing or comparing flows

Definition at line 202 of file suricata.c.

Referenced by FlowGetIpPairProtoHash(), FlowKeyGetHash(), and SuricataInit().

host_mode

uint8_t host_mode = SURI_HOST_IS_SNIFFER_ONLY

Host mode: set if box is sniffing only or is a router

Definition at line 180 of file suricata.c.

prerun_snap

SystemHugepageSnapshot* prerun_snap = NULL

Definition at line 213 of file suricata.c.

Referenced by SuricataPostInit().

sc_set_caps

bool sc_set_caps = false

set caps or not

Definition at line 189 of file suricata.c.

sighup_count

volatile sig_atomic_t sighup_count = 0

Definition at line 157 of file suricata.c.

Referenced by SuricataMainLoop().

sigint_count

volatile sig_atomic_t sigint_count = 0

Definition at line 156 of file suricata.c.

Referenced by SuricataMainLoop().

sigterm_count

volatile sig_atomic_t sigterm_count = 0

Definition at line 158 of file suricata.c.

Referenced by SuricataMainLoop().

sigusr2_count

volatile sig_atomic_t sigusr2_count = 0

Definition at line 159 of file suricata.c.

Referenced by SuricataMainLoop().

suricata

SCInstance suricata

Suricata instance

Definition at line 219 of file suricata.c.

Referenced by GlobalsDestroy(), PostConfLoadedSetup(), RunmodeIsUnittests(), SCFinalizeRunMode(), SCLoadYamlConfig(), SCParseCommandLine(), SCRunmodeGet(), SCRunmodeSet(), SCStartInternalRunMode(), SuricataInit(), SuricataMainLoop(), SuricataShutdown(), and SuriHasSigFile().

suricata_ctl_flags

volatile uint8_t suricata_ctl_flags = 0

suricata engine control flags

Definition at line 172 of file suricata.c.

Referenced by EngineDone(), EngineStop(), ReceiveErfDagLoop(), ReceiveErfFileLoop(), ReceivePfringLoop(), and SuricataMainLoop().