#include "suricata-common.h"
#include "suricata.h"
#include "debug.h"
#include "detect.h"
#include "flow.h"
#include "flow-private.h"
#include "flow-util.h"
#include "flow-worker.h"
#include "conf.h"
#include "conf-yaml-loader.h"
#include "app-layer-parser.h"
#include "app-layer-htp.h"
#include "detect-parse.h"
#include "detect-engine-sigorder.h"
#include "detect-engine-siggroup.h"
#include "detect-engine-address.h"
#include "detect-engine-port.h"
#include "detect-engine-prefilter.h"
#include "detect-engine-mpm.h"
#include "detect-engine-iponly.h"
#include "detect-engine-tag.h"
#include "detect-engine-file.h"
#include "detect-engine.h"
#include "detect-engine-state.h"
#include "detect-engine-payload.h"
#include "detect-byte-extract.h"
#include "detect-content.h"
#include "detect-uricontent.h"
#include "detect-engine-threshold.h"
#include "detect-engine-content-inspection.h"
#include "detect-engine-loader.h"
#include "util-classification-config.h"
#include "util-reference-config.h"
#include "util-threshold-config.h"
#include "util-error.h"
#include "util-hash.h"
#include "util-byte.h"
#include "util-debug.h"
#include "util-unittest.h"
#include "util-action.h"
#include "util-magic.h"
#include "util-signal.h"
#include "util-spm.h"
#include "util-device.h"
#include "util-var-name.h"
#include "tm-threads.h"
#include "runmodes.h"
#include "util-profiling.h"
#include "reputation.h"
#include "util-hash-lookup3.h"

Data Structures
struct	DetectEngineSyncer_

struct	TenantLoaderCtx_

Macros
#define	DETECT_ENGINE_DEFAULT_INSPECTION_RECURSION_LIMIT 3000

Typedefs
typedef struct DetectEngineSyncer_	DetectEngineSyncer

typedef struct TenantLoaderCtx_	TenantLoaderCtx

Enumerations
enum	DetectEngineSyncState { IDLE, RELOAD }

Functions
void	DetectAppLayerInspectEngineRegister (const char *name, AppProto alproto, uint32_t dir, int progress, InspectEngineFuncPtr Callback)
	register inspect engine at start up time More...

void	DetectAppLayerInspectEngineRegister2 (const char *name, AppProto alproto, uint32_t dir, int progress, InspectEngineFuncPtr2 Callback2, InspectionBufferGetDataPtr GetData)
	register inspect engine at start up time More...

int	DetectEngineAppInspectionEngine2Signature (DetectEngineCtx de_ctx, Signature s)

void	DetectEngineAppInspectionEngineSignatureFree (Signature *s)
	free app inspect engines for a signature More...

int	DetectBufferTypeMaxId (void)

int	DetectBufferTypeRegister (const char *name)

void	DetectBufferTypeSupportsPacket (const char *name)

void	DetectBufferTypeSupportsMpm (const char *name)

void	DetectBufferTypeSupportsTransformations (const char *name)

int	DetectBufferTypeGetByName (const char *name)

const char *	DetectBufferTypeGetNameById (const DetectEngineCtx *de_ctx, const int id)

void	DetectBufferTypeSetDescriptionByName (const char name, const char desc)

const char *	DetectBufferTypeGetDescriptionById (const DetectEngineCtx *de_ctx, const int id)

const char *	DetectBufferTypeGetDescriptionByName (const char *name)

bool	DetectBufferTypeSupportsPacketGetById (const DetectEngineCtx *de_ctx, const int id)

bool	DetectBufferTypeSupportsMpmGetById (const DetectEngineCtx *de_ctx, const int id)

void	DetectBufferTypeRegisterSetupCallback (const char name, void(SetupCallback)(const DetectEngineCtx , Signature ))

void	DetectBufferRunSetupCallback (const DetectEngineCtx de_ctx, const int id, Signature s)

void	DetectBufferTypeRegisterValidateCallback (const char name, _Bool(ValidateCallback)(const Signature , const char *sigerror))

bool	DetectBufferRunValidateCallback (const DetectEngineCtx de_ctx, const int id, const Signature s, const char **sigerror)

int	DetectBufferSetActiveList (Signature *s, const int list)

int	DetectBufferGetActiveList (DetectEngineCtx de_ctx, Signature s)

void	InspectionBufferClean (DetectEngineThreadCtx *det_ctx)

InspectionBuffer *	InspectionBufferGet (DetectEngineThreadCtx *det_ctx, const int list_id)

InspectionBuffer *	InspectionBufferMultipleForListGet (InspectionBufferMultipleForList *fb, uint32_t local_id)
	for a InspectionBufferMultipleForList get a InspectionBuffer More...

InspectionBufferMultipleForList *	InspectionBufferGetMulti (DetectEngineThreadCtx *det_ctx, const int list_id)

void	InspectionBufferInit (InspectionBuffer *buffer, uint32_t initial_size)

void	InspectionBufferSetup (InspectionBuffer buffer, const uint8_t data, const uint32_t data_len)
	setup the buffer with our initial data More...

void	InspectionBufferFree (InspectionBuffer *buffer)

void	InspectionBufferCheckAndExpand (InspectionBuffer *buffer, uint32_t min_size)
	make sure that the buffer has at least 'min_size' bytes Expand the buffer if necessary More...

void	InspectionBufferCopy (InspectionBuffer buffer, uint8_t buf, uint32_t buf_len)

void	InspectionBufferApplyTransforms (InspectionBuffer buffer, const DetectEngineTransforms transforms)

void	DetectBufferTypeCloseRegistration (void)

int	DetectBufferTypeGetByIdTransforms (DetectEngineCtx de_ctx, const int id, int transforms, int transform_cnt)

int	DetectEngineReloadStart (void)

int	DetectEngineReloadIsStart (void)

void	DetectEngineReloadSetIdle (void)

int	DetectEngineReloadIsIdle (void)

int	DetectEngineInspectGenericList (ThreadVars tv, const DetectEngineCtx de_ctx, DetectEngineThreadCtx det_ctx, const Signature s, const SigMatchData smd, Flow f, const uint8_t flags, void alstate, void txv, uint64_t tx_id)
	Do the content inspection & validation for a signature. More...

int	DetectEngineInspectBufferGeneric (DetectEngineCtx de_ctx, DetectEngineThreadCtx det_ctx, const DetectEngineAppInspectionEngine engine, const Signature s, Flow f, uint8_t flags, void alstate, void *txv, uint64_t tx_id)
	Do the content inspection & validation for a signature. More...

DetectEngineCtx *	DetectEngineCtxInitStubForMT (void)

DetectEngineCtx *	DetectEngineCtxInitStubForDD (void)

DetectEngineCtx *	DetectEngineCtxInit (void)

DetectEngineCtx *	DetectEngineCtxInitWithPrefix (const char *prefix)

void	DetectEngineCtxFree (DetectEngineCtx *de_ctx)
	Free a DetectEngineCtx:: More...

void	DetectEngineResetMaxSigId (DetectEngineCtx *de_ctx)

TmEcode	DetectEngineThreadCtxInit (ThreadVars tv, void initdata, void **data)
	initialize thread specific detection engine context More...

TmEcode	DetectEngineThreadCtxDeinit (ThreadVars tv, void data)

void	DetectEngineThreadCtxInfo (ThreadVars t, DetectEngineThreadCtx det_ctx)

int	DetectRegisterThreadCtxFuncs (DetectEngineCtx de_ctx, const char name, void (InitFunc)(void ), void data, void(FreeFunc)(void ), int mode)
	Register Thread keyword context Funcs. More...

void *	DetectThreadCtxGetKeywordThreadCtx (DetectEngineThreadCtx *det_ctx, int id)
	Retrieve thread local keyword ctx by id. More...

int	DetectRegisterThreadCtxGlobalFuncs (const char name, void (InitFunc)(void ), void data, void(FreeFunc)(void *))
	Register Thread keyword context Funcs (Global) More...

void *	DetectThreadCtxGetGlobalKeywordThreadCtx (DetectEngineThreadCtx *det_ctx, int id)
	Retrieve thread local keyword ctx by id. More...

int	DetectEngineEnabled (void)
	Check if detection is enabled. More...

uint32_t	DetectEngineGetVersion (void)

void	DetectEngineBumpVersion (void)

DetectEngineCtx *	DetectEngineGetCurrent (void)

DetectEngineCtx *	DetectEngineReference (DetectEngineCtx *de_ctx)

int	DetectEngineMultiTenantEnabled (void)

int	DetectEngineLoadTenantBlocking (uint32_t tenant_id, const char *yaml)
	Load a tenant and wait for loading to complete. More...

int	DetectEngineReloadTenantBlocking (uint32_t tenant_id, const char *yaml, int reload_cnt)
	Reload a tenant and wait for loading to complete. More...

int	DetectEngineMultiTenantSetup (void)
	setup multi-detect / multi-tenancy More...

int	DetectEngineTentantRegisterLivedev (uint32_t tenant_id, int device_id)

int	DetectEngineTentantRegisterVlanId (uint32_t tenant_id, uint16_t vlan_id)

int	DetectEngineTentantUnregisterVlanId (uint32_t tenant_id, uint16_t vlan_id)

int	DetectEngineTentantRegisterPcapFile (uint32_t tenant_id)

int	DetectEngineTentantUnregisterPcapFile (uint32_t tenant_id)

DetectEngineCtx *	DetectEngineGetByTenantId (int tenant_id)

void	DetectEngineDeReference (DetectEngineCtx **de_ctx)

int	DetectEngineAddToMaster (DetectEngineCtx *de_ctx)

int	DetectEngineMoveToFreeList (DetectEngineCtx *de_ctx)

void	DetectEnginePruneFreeList (void)

int	DetectEngineReload (const SCInstance *suri)
	Reload the detection engine. More...

int	DetectEngineMTApply (void)

void	DetectEngineSetParseMetadata (void)

void	DetectEngineUnsetParseMetadata (void)

int	DetectEngineMustParseMetadata (void)

const char *	DetectSigmatchListEnumToString (enum DetectSigmatchListEnum type)

void	DetectEngineSetEvent (DetectEngineThreadCtx *det_ctx, uint8_t e)

AppLayerDecoderEvents *	DetectEngineGetEvents (DetectEngineThreadCtx *det_ctx)

int	DetectEngineGetEventInfo (const char event_name, int event_id, AppLayerEventType *event_type)

void	DetectEngineRegisterTests ()

Variables
SCEnumCharMap	det_ctx_event_table []

Detailed Description

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

Definition in file detect-engine.c.

Macro Definition Documentation

#define DETECT_ENGINE_DEFAULT_INSPECTION_RECURSION_LIMIT 3000

Definition at line 86 of file detect-engine.c.

Referenced by DetectEngineCtxFree(), and DetectEngineGetEventInfo().

Typedef Documentation

typedef struct DetectEngineSyncer_ DetectEngineSyncer

typedef struct TenantLoaderCtx_ TenantLoaderCtx

Enumeration Type Documentation

enum DetectEngineSyncState

Enumerator
IDLE	ready to start a reload
RELOAD	command main thread to do the reload

Definition at line 1121 of file detect-engine.c.

Function Documentation

void DetectAppLayerInspectEngineRegister	(	const char *	name,
		AppProto	alproto,
		uint32_t	dir,
		int	progress,
		InspectEngineFuncPtr	Callback
	)

register inspect engine at start up time

Registers an app inspection engine.

Note: errors are fatal

Definition at line 129 of file detect-engine.c.

References DetectEngineAppInspectionEngine_::alproto, ALPROTO_FAILED, BUG_ON, DetectEngineAppInspectionEngine_::Callback, DETECT_SM_LIST_MATCH, DetectBufferTypeGetByName(), DetectBufferTypeRegister(), DetectEngineAppInspectionEngine_::dir, FatalError, DetectEngineAppInspectionEngine_::next, DetectEngineAppInspectionEngine_::progress, SC_ERR_INITIALIZATION, SC_ERR_INVALID_ARGUMENTS, SCLogError, SCMalloc, SIG_FLAG_TOCLIENT, SIG_FLAG_TOSERVER, DetectEngineAppInspectionEngine_::sm_list, and unlikely.

Referenced by DetectAppLayerEventRegister(), DetectCipServiceRegister(), DetectDceIfaceRegister(), DetectDceStubDataRegister(), DetectDNP3Register(), DetectDnsQueryRegister(), DetectEnipCommandRegister(), DetectFilenameRegister(), DetectFtpbounceRegister(), DetectFtpdataRegister(), DetectHttpHeaderNamesRegister(), DetectHttpProtocolRegister(), DetectHttpResponseLineRegister(), DetectHttpStartRegister(), DetectLuaRegister(), DetectModbusRegister(), DetectNfsProcedureRegister(), DetectNfsVersionRegister(), DetectSshSoftwareVersionRegister(), DetectSslStateRegister(), DetectTemplateRustBufferRegister(), DetectTlsRegister(), and DetectTlsValidityRegister().

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void DetectAppLayerInspectEngineRegister2	(	const char *	name,
		AppProto	alproto,
		uint32_t	dir,
		int	progress,
		InspectEngineFuncPtr2	Callback2,
		InspectionBufferGetDataPtr	GetData
	)

register inspect engine at start up time

Note: errors are fatal

Definition at line 183 of file detect-engine.c.

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int DetectBufferGetActiveList	(	DetectEngineCtx *	de_ctx,
		Signature *	s
	)

Definition at line 823 of file detect-engine.c.

References BUG_ON, DetectBufferTypeGetByIdTransforms(), Signature_::init_data, SignatureInitData_::list, SignatureInitData_::list_set, SCLogDebug, SignatureInitData_::transform_cnt, and SignatureInitData_::transforms.

Referenced by DetectBytejumpDoMatch(), DetectBytetestDoMatch(), DetectContentSetup(), DetectIsdataatSetup(), and DetectPcrePayloadMatch().

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void DetectBufferRunSetupCallback	(	const DetectEngineCtx *	de_ctx,
		const int	id,
		Signature *	s
	)

Definition at line 781 of file detect-engine.c.

References DetectBufferType_::SetupCallback.

Referenced by SigAddressPrepareStage1(), and SigMatchList2DataArray().

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bool DetectBufferRunValidateCallback	(	const DetectEngineCtx *	de_ctx,
		const int	id,
		const Signature *	s,
		const char **	sigerror
	)

Definition at line 800 of file detect-engine.c.

References TRUE, and DetectBufferType_::ValidateCallback.

Referenced by SigMatchList2DataArray().

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int DetectBufferSetActiveList	(	Signature *	s,
		const int	list
	)

Definition at line 810 of file detect-engine.c.

References BUG_ON, Signature_::init_data, SignatureInitData_::list, SignatureInitData_::list_set, and SignatureInitData_::transform_cnt.

Referenced by DetectDnsQueryRegister(), DetectFilenameRegister(), DetectHttpClientBodyRegister(), DetectHttpCookieRegister(), DetectHttpHHRegister(), DetectHttpMethodRegister(), DetectHttpRawHeaderRegister(), DetectHttpRequestLineRegister(), DetectHttpServerBodyRegister(), DetectHttpStatCodeRegister(), DetectHttpStatMsgRegister(), DetectHttpUARegister(), DetectHttpUriSetup(), DetectSmbNamedPipeRegister(), DetectTlsFingerprintRegister(), DetectTlsIssuerRegister(), DetectTlsJa3HashRegister(), DetectTlsJa3StringRegister(), DetectTlsSerialRegister(), DetectTlsSniRegister(), and DetectTlsSubjectRegister().

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void DetectBufferTypeCloseRegistration ( void )

Definition at line 1053 of file detect-engine.c.

References BUG_ON.

Referenced by SigTableSetup().

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int DetectBufferTypeGetByIdTransforms	(	DetectEngineCtx *	de_ctx,
		const int	id,
		int *	transforms,
		int	transform_cnt
	)

Definition at line 1060 of file detect-engine.c.

References DetectEngineCtx_::buffer_type_hash, DetectEngineCtx_::buffer_type_id, DetectEngineCtx_::buffer_type_map, DetectEngineCtx_::buffer_type_map_elements, BUG_ON, DetectEngineTransforms::cnt, DetectAppLayerMpmRegisterByParentId(), HashListTableAdd(), HashListTableLookup(), DetectBufferType_::id, DetectBufferType_::mpm, DetectBufferType_::parent_id, res, SC_ERR_INVALID_SIGNATURE, SCCalloc, SCLogDebug, SCLogError, SCRealloc, DetectBufferType_::SetupCallback, DetectBufferType_::string, DetectBufferType_::supports_transforms, DetectEngineTransforms::transforms, DetectBufferType_::transforms, and DetectBufferType_::ValidateCallback.

Referenced by DetectBufferGetActiveList().

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int DetectBufferTypeGetByName ( const char * name )

Definition at line 698 of file detect-engine.c.

References DetectBufferType_::id.

const char* DetectBufferTypeGetDescriptionById	(	const DetectEngineCtx *	de_ctx,
		const int	id
	)

Definition at line 735 of file detect-engine.c.

References DetectBufferType_::description.

Referenced by EngineAnalysisFP(), and PerCentEncodingMatch().

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const char* DetectBufferTypeGetDescriptionByName ( const char * name )

Definition at line 744 of file detect-engine.c.

References DetectBufferType_::description.

const char* DetectBufferTypeGetNameById	(	const DetectEngineCtx *	de_ctx,
		const int	id
	)

Definition at line 707 of file detect-engine.c.

References DetectEngineCtx_::buffer_type_map, DetectEngineCtx_::buffer_type_map_elements, BUG_ON, and DetectBufferType_::string.

Referenced by DetectEngineAppInspectionEngine2Signature(), DetectRawbytesRegister(), EngineAnalysisFP(), EngineAnalysisRulesFailure(), PerCentEncodingMatch(), SCProfilingKeywordsGlobalInit(), SigMatchList2DataArray(), and SignatureIsIPOnly().

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int DetectBufferTypeMaxId ( void )

Definition at line 573 of file detect-engine.c.

References HashListTable_::array_size, BUG_ON, HashListTableAdd(), HashListTableFree(), HashListTableInit(), HashListTableLookup(), hashlittle_safe(), DetectBufferType_::id, res, SCCalloc, SCFree, SCLogDebug, DetectBufferType_::string, and DetectBufferType_::transforms.

Referenced by SigAlloc().

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int DetectBufferTypeRegister ( const char * name )

Definition at line 654 of file detect-engine.c.

References BUG_ON, and DetectBufferType_::id.

Referenced by DetectAppLayerInspectEngineRegister(), DetectAppLayerInspectEngineRegister2(), DetectBufferTypeRegisterSetupCallback(), DetectBufferTypeRegisterValidateCallback(), DetectBufferTypeSupportsMpm(), DetectBufferTypeSupportsPacket(), DetectBufferTypeSupportsTransformations(), DetectDceIfaceRegister(), DetectDceOpnumRegister(), DetectDNP3Register(), DetectFileextRegister(), DetectFilemagicRegister(), DetectFileMd5Register(), DetectFileSha1Register(), DetectFileSha256Register(), DetectFilesizeRegister(), DetectFilestoreRegister(), DetectFtpbounceRegister(), DetectHttpServerBodyRegister(), DetectLuaRegister(), DetectSshSoftwareVersionRegister(), DetectSshVersionRegister(), DetectSslStateRegister(), DetectSslVersionRegister(), DetectTlsRegister(), DetectTlsVersionRegister(), DetectUricontentRegister(), and DetectUrilenRegister().

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void DetectBufferTypeRegisterSetupCallback	(	const char *	name,
		void()(const DetectEngineCtx , Signature *)	SetupCallback
	)

Definition at line 771 of file detect-engine.c.

References BUG_ON, DetectBufferTypeRegister(), and DetectBufferType_::SetupCallback.

Referenced by DetectFiledataRegister(), DetectHttpClientBodyRegister(), DetectHttpUriRegister(), DetectTlsFingerprintRegister(), DetectTlsJa3HashRegister(), and DetectTlsSerialRegister().

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void DetectBufferTypeRegisterValidateCallback	(	const char *	name,
		_Bool()(const Signature , const char **sigerror)	ValidateCallback
	)

Definition at line 790 of file detect-engine.c.

References BUG_ON, DetectBufferTypeRegister(), and DetectBufferType_::ValidateCallback.

Referenced by DetectHttpHHRegister(), DetectHttpMethodRegister(), DetectHttpRawHeaderRegister(), DetectHttpUriRegister(), DetectTlsFingerprintRegister(), DetectTlsJa3HashRegister(), and DetectTlsSerialRegister().

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void DetectBufferTypeSetDescriptionByName	(	const char *	name,
		const char *	desc
	)

Definition at line 726 of file detect-engine.c.

References DetectBufferType_::description.

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void DetectBufferTypeSupportsMpm ( const char * name )

Definition at line 678 of file detect-engine.c.

References BUG_ON, DetectBufferTypeRegister(), DetectBufferType_::id, DetectBufferType_::mpm, SCLogDebug, and TRUE.

Referenced by DetectAppLayerMpmRegister(), and DetectAppLayerMpmRegister2().

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bool DetectBufferTypeSupportsMpmGetById	(	const DetectEngineCtx *	de_ctx,
		const int	id
	)

Definition at line 762 of file detect-engine.c.

References FALSE, DetectBufferType_::mpm, and SCLogDebug.

Referenced by DetectGetLastSMFromMpmLists(), and FastPatternSupportEnabledForSigMatchList().

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void DetectBufferTypeSupportsPacket ( const char * name )

Definition at line 668 of file detect-engine.c.

References BUG_ON, DetectBufferTypeRegister(), DetectBufferType_::id, DetectBufferType_::packet, SCLogDebug, and TRUE.

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bool DetectBufferTypeSupportsPacketGetById	(	const DetectEngineCtx *	de_ctx,
		const int	id
	)

Definition at line 753 of file detect-engine.c.

References FALSE, DetectBufferType_::packet, and SCLogDebug.

Referenced by SigMatchList2DataArray().

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void DetectBufferTypeSupportsTransformations ( const char * name )

Definition at line 688 of file detect-engine.c.

References BUG_ON, DetectBufferTypeRegister(), DetectBufferType_::id, SCLogDebug, and DetectBufferType_::supports_transforms.

Referenced by DetectAppLayerMpmRegister2().

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int DetectEngineAddToMaster ( DetectEngineCtx * de_ctx )

Definition at line 3506 of file detect-engine.c.

References DetectEngineMasterCtx_::lock, SCLogDebug, SCMutexLock, and SCMutexUnlock.

Referenced by DetectEngineMultiTenantEnabled(), DetectEngineReload(), DetectReplaceFreeInternal(), and PostRunDeinit().

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int DetectEngineAppInspectionEngine2Signature	(	DetectEngineCtx *	de_ctx,
		Signature *	s
	)

Note: for the file inspect engine, the id DE_STATE_ID_FILE_INSPECT is assigned.

Definition at line 358 of file detect-engine.c.

Referenced by SigAddressPrepareStage4().

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void DetectEngineAppInspectionEngineSignatureFree ( Signature * s )

free app inspect engines for a signature

For lists that are registered multiple times, like http_header and http_cookie, making the engines owner of the lists is complicated. Multiple engines in a sig may be pointing to the same list. To address this the 'free' code needs to be extra careful about not double freeing, so it takes an approach to first fill an array of the to-free pointers before freeing them.

Definition at line 517 of file detect-engine.c.

References Signature_::app_inspect, BUG_ON, SigMatchData_::ctx, DETECT_SM_LIST_DYNAMIC_START, SigTableElmt_::Free, SigMatchData_::is_last, MAX, DetectEngineAppInspectionEngine_::next, next, SCFree, sigmatch_table, DetectEngineAppInspectionEngine_::sm_list, DetectEngineAppInspectionEngine_::smd, DetectEngineTransforms::transforms, and SigMatchData_::type.

Referenced by SigFree().

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void DetectEngineBumpVersion ( void )

Definition at line 2772 of file detect-engine.c.

References DetectEngineMasterCtx_::lock, SCLogDebug, SCMutexLock, SCMutexUnlock, and DetectEngineMasterCtx_::version.

Referenced by DetectEngineReload(), and PostRunDeinit().

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void DetectEngineCtxFree ( DetectEngineCtx * de_ctx )

Free a DetectEngineCtx::

Parameters

de_ctx DetectEngineCtx:: to be freed

Definition at line 1685 of file detect-engine.c.

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DetectEngineCtx* DetectEngineCtxInit ( void )

Definition at line 1640 of file detect-engine.c.

References DETECT_ENGINE_TYPE_NORMAL.

Referenced by ActionInitConfig(), AlertFastLogInitCtx(), DetectAckRegister(), DetectAppLayerProtocolRegister(), DetectBase64DataDoMatch(), DetectBase64DecodeDoMatch(), DetectBypassRegister(), DetectByteExtractRetrieveSMVar(), DetectBytejumpDoMatch(), DetectBytetestDoMatch(), DetectCipServiceRegister(), DetectClasstypeRegister(), DetectDceIfaceRegister(), DetectDceOpnumRegister(), DetectDceStubDataRegister(), DetectDetectionFilterRegister(), DetectDistanceRegister(), DetectDNP3Register(), DetectDnsQueryRegister(), DetectEngineCtxInitWithPrefix(), DetectEngineGetEventInfo(), DetectEngineInspectENIP(), DetectEngineInspectModbus(), DetectEngineInspectStream(), DetectEngineStateResetTxs(), DetectEnipCommandRegister(), DetectFastPatternRegister(), DetectFilesizeRegister(), DetectFilestoreRegister(), DetectFlowbitsAnalyze(), DetectFlowFree(), DetectFlowintFree(), DetectFragOffsetFree(), DetectFtpbounceRegister(), DetectFtpdataRegister(), DetectGeoipRegister(), DetectGidRegister(), DetectHostbitFree(), DetectHttpRequestLineRegister(), DetectHttpResponseLineRegister(), DetectIcmpIdFree(), DetectIcmpSeqFree(), DetectICodeFree(), DetectIPProtoRemoveAllSMs(), DetectIPRepFree(), DetectIsdataatFree(), DetectITypeFree(), DetectL3ProtoRegister(), DetectLuaRegister(), DetectMetadataHashFree(), DetectModbusRegister(), DetectMsgRegister(), DetectPcrePayloadMatch(), DetectPktDataRegister(), DetectPortHashFree(), DetectPriorityRegister(), DetectProtoContainsProto(), DetectReferenceFree(), DetectReplaceFreeInternal(), DetectRpcFree(), DetectSameipRegister(), DetectSeqRegister(), DetectSetupParseRegexes(), DetectSidRegister(), DetectSshSoftwareVersionRegister(), DetectSshVersionRegister(), DetectSslStateRegister(), DetectSslVersionRegister(), DetectTargetRegister(), DetectTemplateRustBufferRegister(), DetectThresholdRegister(), DetectTlsFingerprintRegister(), DetectTlsIssuerRegister(), DetectTlsJa3HashRegister(), DetectTlsJa3StringRegister(), DetectTlsSerialRegister(), DetectTlsSniRegister(), DetectTlsSubjectRegister(), DetectTlsValidityRegister(), DetectTlsVersionRegister(), DetectTransformCompressWhitespaceRegister(), DetectTransformStripWhitespaceRegister(), DetectUricontentRegister(), DetectUrilenValidateContent(), DetectWithinRegister(), DetectXbitFree(), IPOnlyAddSignature(), MpmACRegister(), MpmACTileRegister(), PostRunDeinit(), RegisterModbusParsers(), SCACBSPrintInfo(), SCClassConfGenerateInValidDummyClassConfigFD03(), SCRConfGenerateInValidDummyReferenceConfigFD03(), SCRuleVarsGetConfVar(), SCSigSignatureOrderingModuleCleanup(), SCThresholdConfParseFile(), SigGroupHeadContainsSigId(), SigParseApplyDsizeToContent(), SMTPParserCleanup(), TagTimeoutCheck(), UTHGenericTest(), UTHPacketMatchSig(), UTHPacketMatchSigMpm(), and UTHParseSignature().

DetectEngineCtx* DetectEngineCtxInitStubForDD ( void )

Definition at line 1635 of file detect-engine.c.

References DETECT_ENGINE_TYPE_DD_STUB.

Referenced by PostRunDeinit().

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DetectEngineCtx* DetectEngineCtxInitStubForMT ( void )

Definition at line 1630 of file detect-engine.c.

References DETECT_ENGINE_TYPE_MT_STUB.

Referenced by DetectEngineMTApply(), and PostRunDeinit().

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DetectEngineCtx* DetectEngineCtxInitWithPrefix ( const char * prefix )

Definition at line 1645 of file detect-engine.c.

References DETECT_ENGINE_TYPE_NORMAL, DetectEngineCtxInit(), SigString_::filename, DetectEngineCtx_::keyword_list, next, DetectEngineThreadKeywordCtxItem_::next, SCFree, SigString_::sig_error, DetectEngineCtx_::sig_stat, SigString_::sig_str, TAILQ_FOREACH_SAFE, and TAILQ_REMOVE.

Referenced by DetectEngineMultiTenantEnabled(), and DetectEngineReload().

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void DetectEngineDeReference ( DetectEngineCtx ** de_ctx )

Definition at line 3482 of file detect-engine.c.

References BUG_ON, DetectEngineMasterCtx_::list, and DetectEngineCtx_::next.

Referenced by DetectEngineMultiTenantEnabled(), DetectEngineReload(), DetectEngineThreadCtxInit(), GlobalsInitPreConfig(), and UnixSocketPcapFile().

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int DetectEngineEnabled ( void )

Check if detection is enabled.

Return values

bool	true or false

Definition at line 2748 of file detect-engine.c.

References DetectEngineMasterCtx_::list, DetectEngineMasterCtx_::lock, SCMutexLock, and SCMutexUnlock.

Referenced by PostRunDeinit().

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DetectEngineCtx* DetectEngineGetByTenantId ( int tenant_id )

Definition at line 3456 of file detect-engine.c.

References DETECT_ENGINE_TYPE_TENANT, DetectEngineMasterCtx_::list, DetectEngineMasterCtx_::lock, DetectEngineCtx_::next, DetectEngineCtx_::ref_cnt, SCMutexLock, SCMutexUnlock, DetectEngineCtx_::tenant_id, and DetectEngineCtx_::type.

Referenced by DetectEngineMultiTenantEnabled(), and UnixSocketPcapFile().

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DetectEngineCtx* DetectEngineGetCurrent ( void )

Definition at line 2781 of file detect-engine.c.

References DETECT_ENGINE_TYPE_DD_STUB, DETECT_ENGINE_TYPE_MT_STUB, DETECT_ENGINE_TYPE_NORMAL, DetectEngineMasterCtx_::list, DetectEngineMasterCtx_::lock, DetectEngineCtx_::next, DetectEngineCtx_::ref_cnt, SCLogDebug, SCMutexLock, SCMutexUnlock, and DetectEngineCtx_::type.

Referenced by DetectEngineReload(), DetectEngineThreadCtxInit(), and GlobalsInitPreConfig().

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int DetectEngineGetEventInfo	(	const char *	event_name,
		int *	event_id,
		AppLayerEventType *	event_type
	)

Definition at line 3823 of file detect-engine.c.

References APP_LAYER_EVENT_TYPE_TRANSACTION, ConfCreateContextBackup(), ConfDeInit(), ConfInit(), ConfRestoreContextBackup(), ConfYamlLoadString(), DETECT_ENGINE_DEFAULT_INSPECTION_RECURSION_LIMIT, DetectEngineCtxFree(), DetectEngineCtxInit(), DetectEngineCtx_::inspection_recursion_limit, DetectEngineCtx_::max_uniq_toclient_groups, DetectEngineCtx_::max_uniq_toserver_groups, SC_ERR_INVALID_ENUM_MAP, SCLogError, and SCMapEnumNameToValue().

Referenced by DetectAppLayerEventRegister().

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AppLayerDecoderEvents* DetectEngineGetEvents ( DetectEngineThreadCtx * det_ctx )

Definition at line 3818 of file detect-engine.c.

References DetectEngineThreadCtx_::decoder_events.

uint32_t DetectEngineGetVersion ( void )

Definition at line 2762 of file detect-engine.c.

References DetectEngineMasterCtx_::lock, SCMutexLock, SCMutexUnlock, version, and DetectEngineMasterCtx_::version.

Referenced by DetectEngineInspectBufferGeneric().

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int DetectEngineInspectBufferGeneric	(	DetectEngineCtx *	de_ctx,
		DetectEngineThreadCtx *	det_ctx,
		const DetectEngineAppInspectionEngine *	engine,
		const Signature *	s,
		Flow *	f,
		uint8_t	flags,
		void *	alstate,
		void *	txv,
		uint64_t	tx_id
	)

Do the content inspection & validation for a signature.

Parameters

de_ctx	Detection engine context
det_ctx	Detection engine thread context
s	Signature to inspect
f	Flow
flags	app layer flags
state	App layer state

Return values

0	no match.
1	match.
2	Sig can't match.

Definition at line 1242 of file detect-engine.c.

References ActionInitConfig(), Flow_::alproto, AppLayerParserGetStateProgress(), DetectEngineThreadCtx_::buffer_offset, BUG_ON, PacketQueue_::cond_q, ConfGetBool(), DetectEngineCtx_::config_prefix, DETECT_CI_FLAGS_END, DETECT_CI_FLAGS_START, DETECT_ENGINE_CONTENT_INSPECTION_MODE_STATE, DETECT_ENGINE_INSPECT_SIG_CANT_MATCH, DETECT_ENGINE_INSPECT_SIG_MATCH, DETECT_ENGINE_INSPECT_SIG_NO_MATCH, DETECT_ENGINE_TYPE_DD_STUB, DETECT_ENGINE_TYPE_MT_STUB, DetectAddressMapInit(), DetectEngineContentInspection(), DetectEngineCtxFree(), DetectEngineGetVersion(), DetectEngineThreadCtxDeinit(), DetectMetadataHashInit(), DetectParseDupSigHashInit(), DetectEngineThreadCtx_::discontinue_matching, DetectEngineCtx_::failure_fatal, TmModule_::flags, Packet_::flags, FlowWorkerGetDetectCtxPtr(), FlowWorkerReplaceDetectCtx(), DetectEngineAppInspectionEngine_::GetData, Tmq_::id, ThreadVars_::inq, InspectionBuffer::inspect, InspectionBuffer::inspect_len, InspectionBuffer::inspect_offset, DetectEngineThreadCtx_::inspection_recursion_counter, DetectEngineAppInspectionEngine_::mpm, DetectEngineCtx_::mpm_matcher, mpm_table, MpmStoreInit(), PacketQueue_::mutex_q, SpmTableElmt_::name, MpmTableElmt_::name, ThreadVars_::next, offset, PacketEnqueue(), PacketGetFromAlloc(), PatternMatchDefaultMatcher(), PKT_PSEUDO_STREAM_END, TmModule_::PktAcqBreakLoop, TmModule_::PktAcqLoop, DetectEngineAppInspectionEngine_::progress, Flow_::proto, SC_ATOMIC_GET, SC_ERR_LIVE_RULE_SWAP, SCClassConfLoadClassficationConfigFile(), SCCondSignal, SCEnter, SCLogDebug, SCLogError, SCLogInfo, SCMalloc, SCMutexLock, SCMutexUnlock, SCRConfLoadReferenceConfigFile(), DetectEngineCtx_::sig_stat, DetectEngineCtx_::sigerror, SigGroupHeadHashInit(), SinglePatternMatchDefaultMatcher(), TmSlot_::slot_next, DetectEngineAppInspectionEngine_::sm_list, DetectEngineAppInspectionEngine_::smd, DetectEngineCtx_::spm_global_thread_ctx, DetectEngineCtx_::spm_matcher, spm_table, SpmInitGlobalThreadCtx(), SRepInit(), SRepReloadComplete(), strlcpy(), suricata_ctl_flags, TAILQ_INIT, ThresholdHashInit(), THV_CAPTURE_INJECT_PKT, THV_RUNNING_DONE, TM_FLAG_DETECT_TM, TM_FLAG_RECEIVE_TM, TmSlot_::tm_id, ThreadVars_::tm_slots, TmModuleGetById(), TmThreadsCheckFlag(), TmThreadsSetFlag(), trans_q, DetectEngineAppInspectionEngine_::transforms, tv_root, tv_root_lock, TVT_PPT, type, DetectEngineCtx_::type, unlikely, DetectEngineAppInspectionEngine_::v2, VarNameStoreSetupStaging(), and DetectEngineCtx_::version.

Referenced by DetectAppLayerInspectEngineRegister2(), DetectFiledataRegister(), DetectHttpClientBodyRegister(), DetectHttpCookieRegister(), DetectHttpHHRegister(), DetectHttpMethodRegister(), DetectHttpRawHeaderRegister(), DetectHttpRequestLineRegister(), DetectHttpStatCodeRegister(), DetectHttpStatMsgRegister(), DetectHttpUARegister(), DetectHttpUriRegister(), DetectSmbNamedPipeRegister(), DetectSshProtocolRegister(), DetectSshSoftwareRegister(), DetectTemplateBufferRegister(), DetectTlsFingerprintRegister(), DetectTlsIssuerRegister(), DetectTlsJa3HashRegister(), DetectTlsJa3StringRegister(), DetectTlsSerialRegister(), DetectTlsSniRegister(), and DetectTlsSubjectRegister().

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int DetectEngineInspectGenericList	(	ThreadVars *	tv,
		const DetectEngineCtx *	de_ctx,
		DetectEngineThreadCtx *	det_ctx,
		const Signature *	s,
		const SigMatchData *	smd,
		Flow *	f,
		const uint8_t	flags,
		void *	alstate,
		void *	txv,
		uint64_t	tx_id
	)

Do the content inspection & validation for a signature.

Parameters

de_ctx	Detection engine context
det_ctx	Detection engine thread context
s	Signature to inspect
sm	SigMatch to inspect
f	Flow
flags	app layer flags
state	App layer state

Return values

0	no match
1	match

Definition at line 1193 of file detect-engine.c.

References SigMatchData_::ctx, DETECT_ENGINE_INSPECT_SIG_CANT_MATCH, DETECT_ENGINE_INSPECT_SIG_MATCH, DETECT_ENGINE_INSPECT_SIG_NO_MATCH, SigMatchData_::is_last, KEYWORD_PROFILING_END, KEYWORD_PROFILING_START, SCLogDebug, sigmatch_table, and SigMatchData_::type.

Referenced by DetectDceIfaceRegister(), DetectEngineInspectDnsRequest(), DetectEngineInspectDnsResponse(), DetectFtpbounceRegister(), DetectFtpdataRegister(), DetectLuaRegister(), DetectNfsProcedureRegister(), DetectNfsVersionRegister(), DetectSslStateRegister(), and DetectTlsValidityRegister().

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int DetectEngineLoadTenantBlocking	(	uint32_t	tenant_id,
		const char *	yaml
	)

Load a tenant and wait for loading to complete.

Definition at line 3007 of file detect-engine.c.

References DetectLoadersSync().

Referenced by UnixSocketPcapFile().

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int DetectEngineMoveToFreeList ( DetectEngineCtx * de_ctx )

Definition at line 3522 of file detect-engine.c.

References DetectEngineMasterCtx_::free_list, DetectEngineMasterCtx_::list, DetectEngineMasterCtx_::lock, next, DetectEngineCtx_::next, DetectEngineCtx_::ref_cnt, SCLogDebug, SCMutexLock, and SCMutexUnlock.

Referenced by DetectEngineMultiTenantEnabled(), DetectEngineReload(), DetectReplaceFreeInternal(), GlobalsInitPreConfig(), and UnixSocketPcapFile().

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int DetectEngineMTApply ( void )

Definition at line 3713 of file detect-engine.c.

References DETECT_ENGINE_TYPE_DD_STUB, DETECT_ENGINE_TYPE_MT_STUB, DETECT_ENGINE_TYPE_NORMAL, DetectEngineCtxInitStubForMT(), DetectEnginePruneFreeList(), DetectEngineMasterCtx_::list, DetectEngineMasterCtx_::lock, DetectEngineCtx_::next, SCLogDebug, SCLogInfo, SCMutexLock, SCMutexUnlock, DetectEngineCtx_::tenant_id, DetectEngineMasterCtx_::tenant_selector, TENANT_SELECTOR_UNKNOWN, and DetectEngineCtx_::type.

Referenced by UnixSocketPcapFile().

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int DetectEngineMultiTenantEnabled ( void )

TODO locking? Not needed if this is a one time setting at startup

Definition at line 2813 of file detect-engine.c.

References ConfGetNode(), DetectEngineCtx_::config_prefix, ConfYamlLoadFileWithPrefix(), DETECT_ENGINE_TYPE_TENANT, DetectEngineAddToMaster(), DetectEngineCtxFree(), DetectEngineCtxInitWithPrefix(), DetectEngineDeReference(), DetectEngineGetByTenantId(), DetectEngineMoveToFreeList(), DetectEngineCtx_::loader_id, DetectEngineMasterCtx_::multi_tenant_enabled, SC_ERR_CONF_YAML_ERROR, SC_ERR_FOPEN, SC_ERR_INITIALIZATION, SC_ERR_MT_DUPLICATE_TENANT, SC_ERR_NO_RULES_LOADED, SCLogDebug, SCLogError, SigLoadSignatures(), DetectEngineCtx_::tenant_id, and DetectEngineCtx_::type.

Referenced by DetectEngineThreadCtxInit(), SigGroupBuild(), and UnixSocketPcapFile().

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int DetectEngineMultiTenantSetup ( void )

setup multi-detect / multi-tenancy

See if MT is enabled. If so, setup the selector, tenants and mappings. Tenants and mappings are optional, and can also dynamically be added and removed from the unix socket.

Definition at line 3156 of file detect-engine.c.

References ByteExtractStringUint32(), ConfGet(), ConfGetBool(), ConfGetNode(), ConfNodeLookupChild(), ConfUnixSocketIsEnable(), ConfYamlLoadFileWithPrefix(), DetectLoadersInit(), DetectLoadersSync(), DetectLoaderThreadSpawn(), LiveDevice_::dev, EngineModeIsIPS(), Packet_::livedev, DetectEngineMasterCtx_::lock, DetectEngineSyncer_::m, DetectEngineMasterCtx_::multi_tenant_enabled, next, DetectEngineTenantMapping_::next, SC_ERR_CONF_YAML_ERROR, SC_ERR_INVALID_ARGUMENT, SC_ERR_INVALID_VALUE, SC_ERR_MT_NO_MAPPING, SCCalloc, SCFree, SCLogDebug, SCLogError, SCLogInfo, SCLogNotice, SCLogWarning, SCMutexLock, SCMutexUnlock, TAILQ_FOREACH, DetectEngineThreadCtx_::tenant_array, DetectEngineThreadCtx_::tenant_array_size, LiveDevice_::tenant_id, DetectEngineTenantMapping_::tenant_id, DetectEngineMasterCtx_::tenant_mapping_list, DetectEngineMasterCtx_::tenant_selector, TENANT_SELECTOR_DIRECT, TENANT_SELECTOR_LIVEDEV, TENANT_SELECTOR_UNKNOWN, TENANT_SELECTOR_VLAN, TmModuleDetectLoaderRegister(), TmThreadContinueDetectLoaderThreads(), DetectEngineTenantMapping_::traffic_id, ConfNode_::val, VarNameStoreActivateStaging(), Packet_::vlan_id, and Packet_::vlan_idx.

Referenced by PostRunDeinit().

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int DetectEngineMustParseMetadata ( void )

Definition at line 3778 of file detect-engine.c.

Referenced by DetectMetadataHashFree(), and DetectMetadataHashInit().

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void DetectEnginePruneFreeList ( void )

Definition at line 3573 of file detect-engine.c.

References DetectEngineCtxFree(), DetectEngineMasterCtx_::free_list, DetectEngineMasterCtx_::lock, next, DetectEngineCtx_::next, DetectEngineCtx_::ref_cnt, SCLogDebug, SCMutexLock, and SCMutexUnlock.

Referenced by DetectEngineMTApply(), DetectEngineReload(), DetectReplaceFreeInternal(), GlobalsInitPreConfig(), and UnixSocketPcapFile().

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DetectEngineCtx* DetectEngineReference ( DetectEngineCtx * de_ctx )

Definition at line 2804 of file detect-engine.c.

References DetectEngineCtx_::ref_cnt.

Referenced by DetectEngineThreadCtxInit().

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void DetectEngineRegisterTests ( void )

Definition at line 4079 of file detect-engine.c.

References UtRegisterTest().

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int DetectEngineReload ( const SCInstance * suri )

Reload the detection engine.

Parameters

filename YAML file to load for the detect config

Return values

-1	error
0	ok

Definition at line 3612 of file detect-engine.c.

References HashTable_::array_size, SCInstance_::conf_filename, ConfDump(), ConfGetNode(), ConfYamlLoadFileWithPrefix(), DETECT_ENGINE_TYPE_DD_STUB, DETECT_ENGINE_TYPE_NORMAL, DetectEngineAddToMaster(), DetectEngineBumpVersion(), DetectEngineCtxFree(), DetectEngineCtxInitWithPrefix(), DetectEngineDeReference(), DetectEngineGetCurrent(), DetectEngineMoveToFreeList(), DetectEnginePruneFreeList(), SC_ERR_CONF_YAML_ERROR, SC_ERR_INITIALIZATION, SCLogDebug, SCLogError, SCLogNotice, SCInstance_::sig_file, SCInstance_::sig_file_exclusive, SigLoadSignatures(), DetectEngineThreadCtx_::tenant_id, and DetectEngineCtx_::type.

Referenced by PostRunDeinit().

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int DetectEngineReloadIsIdle ( void )

Definition at line 1169 of file detect-engine.c.

References DetectEngineSyncer_::m, SCMutexLock, SCMutexUnlock, and DetectEngineSyncer_::state.

int DetectEngineReloadIsStart ( void )

Definition at line 1149 of file detect-engine.c.

References DetectEngineSyncer_::m, RELOAD, SCMutexLock, SCMutexUnlock, and DetectEngineSyncer_::state.

Referenced by PostRunDeinit().

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void DetectEngineReloadSetIdle ( void )

Definition at line 1161 of file detect-engine.c.

References IDLE, DetectEngineSyncer_::m, SCMutexLock, SCMutexUnlock, and DetectEngineSyncer_::state.

Referenced by PostRunDeinit().

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int DetectEngineReloadStart ( void )

Definition at line 1135 of file detect-engine.c.

References DetectEngineSyncer_::m, RELOAD, SCMutexLock, SCMutexUnlock, and DetectEngineSyncer_::state.

Referenced by PostRunDeinit().

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int DetectEngineReloadTenantBlocking	(	uint32_t	tenant_id,
		const char *	yaml,
		int	reload_cnt
	)

Reload a tenant and wait for loading to complete.

Definition at line 3021 of file detect-engine.c.

References ByteExtractStringUint16(), ByteExtractStringUint32(), ConfNodeLookupChild(), DetectEngineTentantRegisterLivedev(), DetectEngineTentantRegisterVlanId(), DetectLoadersSync(), LiveDevice_::id, LiveGetDevice(), next, SC_ERR_INVALID_ARGUMENT, SC_ERR_MT_NO_MAPPING, SCLogError, SCLogWarning, TAILQ_FOREACH, LiveDevice_::tenant_id, LiveDevice_::tenant_id_set, and ConfNode_::val.

Referenced by UnixSocketPcapFile().

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void DetectEngineResetMaxSigId ( DetectEngineCtx * de_ctx )

Definition at line 2060 of file detect-engine.c.

Referenced by SigCleanSignatures().

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void DetectEngineSetEvent	(	DetectEngineThreadCtx *	det_ctx,
		uint8_t	e
	)

Definition at line 3812 of file detect-engine.c.

References AppLayerDecoderEventsSetEventRaw(), DetectEngineThreadCtx_::decoder_events, and DetectEngineThreadCtx_::events.

Referenced by FileSwfDecompression(), and FileSwfZlibDecompression().

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void DetectEngineSetParseMetadata ( void )

Definition at line 3768 of file detect-engine.c.

Referenced by DetectMetadataHashFree().

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int DetectEngineTentantRegisterLivedev	(	uint32_t	tenant_id,
		int	device_id
	)

Definition at line 3424 of file detect-engine.c.

References TENANT_SELECTOR_LIVEDEV.

Referenced by DetectEngineReloadTenantBlocking().

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int DetectEngineTentantRegisterPcapFile ( uint32_t tenant_id )

Definition at line 3439 of file detect-engine.c.

References SCLogInfo, and TENANT_SELECTOR_DIRECT.

Referenced by UnixSocketPcapFile().

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int DetectEngineTentantRegisterVlanId	(	uint32_t	tenant_id,
		uint16_t	vlan_id
	)

Definition at line 3429 of file detect-engine.c.

References TENANT_SELECTOR_VLAN.

Referenced by DetectEngineReloadTenantBlocking(), and UnixSocketPcapFile().

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int DetectEngineTentantUnregisterPcapFile ( uint32_t tenant_id )

Definition at line 3445 of file detect-engine.c.

References Packet_::pcap_v, SCLogInfo, PcapPacketVars_::tenant_id, and TENANT_SELECTOR_DIRECT.

Referenced by UnixSocketPcapFile().

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int DetectEngineTentantUnregisterVlanId	(	uint32_t	tenant_id,
		uint16_t	vlan_id
	)

Definition at line 3434 of file detect-engine.c.

References TENANT_SELECTOR_VLAN.

Referenced by UnixSocketPcapFile().

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TmEcode DetectEngineThreadCtxDeinit	(	ThreadVars *	tv,
		void *	data
	)

Definition at line 2591 of file detect-engine.c.

References HashTableFree(), DetectEngineThreadCtx_::mt_det_ctxs_hash, SC_ERR_INVALID_ARGUMENTS, SCLogWarning, and TM_ECODE_OK.

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void DetectEngineThreadCtxInfo	(	ThreadVars *	t,
		DetectEngineThreadCtx *	det_ctx
	)

Definition at line 2609 of file detect-engine.c.

References DetectEngineThreadCtx_::de_ctx, DetectEngineCtx_::mpm_matcher, DetectEngineThreadCtx_::mtc, DetectEngineThreadCtx_::mtcu, and PatternMatchThreadPrint().

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TmEcode DetectEngineThreadCtxInit	(	ThreadVars *	tv,
		void *	initdata,
		void **	data
	)

initialize thread specific detection engine context

Note: there is a special case when using delayed detect. In this case the function is called twice per thread. The first time the rules are not yet loaded. de_ctx->delayed_detect_initialized will be 0. The 2nd time they will be loaded. de_ctx->delayed_detect_initialized will be 1. This is needed to do the per thread counter registration before the packet runtime starts. In delayed detect mode, the first call will return a NULL ptr through the data ptr.

Parameters

tv	ThreadVars for this thread
initdata	pointer to de_ctx
data[out]	pointer to store our thread detection ctx

Return values

TM_ECODE_OK	if all went well
TM_ECODE_FAILED	on serious erro

alert counter setup

Definition at line 2383 of file detect-engine.c.

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void DetectEngineUnsetParseMetadata ( void )

Definition at line 3773 of file detect-engine.c.

Referenced by DetectMetadataHashFree().

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int DetectRegisterThreadCtxFuncs	(	DetectEngineCtx *	de_ctx,
		const char *	name,
		void ()(void *)	InitFunc,
		void *	data,
		void()(void )	FreeFunc,
		int	mode
	)

Register Thread keyword context Funcs.

Parameters

de_ctx	detection engine to register in
name	keyword name for error printing
InitFunc	function ptr
data	keyword init data to pass to Func
FreeFunc	function ptr
mode	0 normal (ctx per keyword instance) 1 shared (one ctx per det_ct)

Return values

id	for retrieval of ctx at runtime
-1	on error

Note: make sure "data" remains valid and it free'd elsewhere. It's recommended to store it in the keywords global ctx so that it's freed when the de_ctx is freed.

Definition at line 2632 of file detect-engine.c.

References BUG_ON, DetectEngineThreadKeywordCtxItem_::data, DetectEngineThreadKeywordCtxItem_::FreeFunc, DetectEngineThreadKeywordCtxItem_::id, DetectEngineThreadKeywordCtxItem_::InitFunc, DetectEngineCtx_::keyword_id, DetectEngineCtx_::keyword_list, DetectEngineThreadKeywordCtxItem_::name, DetectEngineThreadKeywordCtxItem_::next, SCMalloc, and unlikely.

Referenced by DetectFilemagicRegister(), and DetectLuaRegister().

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int DetectRegisterThreadCtxGlobalFuncs	(	const char *	name,
		void ()(void *)	InitFunc,
		void *	data,
		void()(void )	FreeFunc
	)

Register Thread keyword context Funcs (Global)

IDs stay static over reloads and between tenants

Parameters

name	keyword name for error printing
InitFunc	function ptr
FreeFunc	function ptr

Return values

id	for retrieval of ctx at runtime
-1	on error

Definition at line 2692 of file detect-engine.c.

References BUG_ON, DetectEngineThreadKeywordCtxItem_::data, DetectEngineThreadKeywordCtxItem_::FreeFunc, DetectEngineThreadKeywordCtxItem_::id, DetectEngineThreadKeywordCtxItem_::InitFunc, DetectEngineMasterCtx_::keyword_id, DetectEngineMasterCtx_::keyword_list, DetectEngineThreadKeywordCtxItem_::name, DetectEngineThreadKeywordCtxItem_::next, SCCalloc, and unlikely.

Referenced by DetectHttpHeaderNamesRegister(), DetectHttpHeaderRegister(), and DetectHttpStartRegister().

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const char* DetectSigmatchListEnumToString ( enum DetectSigmatchListEnum type )

Definition at line 3783 of file detect-engine.c.

References DETECT_SM_LIST_BASE64_DATA, DETECT_SM_LIST_MATCH, DETECT_SM_LIST_MAX, DETECT_SM_LIST_PMATCH, DETECT_SM_LIST_POSTMATCH, DETECT_SM_LIST_SUPPRESS, DETECT_SM_LIST_THRESHOLD, and DETECT_SM_LIST_TMATCH.

Referenced by CleanupFPAnalyzer(), EngineAnalysisRulesFailure(), and SCProfilingKeywordsGlobalInit().

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void* DetectThreadCtxGetGlobalKeywordThreadCtx	(	DetectEngineThreadCtx *	det_ctx,
		int	id
	)

Retrieve thread local keyword ctx by id.

Parameters

det_ctx	detection engine thread ctx to retrieve the ctx from
id	id of the ctx returned by DetectRegisterThreadCtxInitFunc at keyword init.

Return values

ctx	or NULL on error

Definition at line 2736 of file detect-engine.c.

References DetectEngineThreadCtx_::global_keyword_ctxs_array, and DetectEngineThreadCtx_::global_keyword_ctxs_size.

Referenced by HttpHeaderGetBufferSpaceForTXID().

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void* DetectThreadCtxGetKeywordThreadCtx	(	DetectEngineThreadCtx *	det_ctx,
		int	id
	)

Retrieve thread local keyword ctx by id.

Parameters

det_ctx	detection engine thread ctx to retrieve the ctx from
id	id of the ctx returned by DetectRegisterThreadCtxInitFunc at keyword init.

Return values

ctx	or NULL on error

Definition at line 2672 of file detect-engine.c.

References DetectEngineThreadCtx_::keyword_ctxs_array, and DetectEngineThreadCtx_::keyword_ctxs_size.

Referenced by DetectFilemagicRegister(), and DetectLuaRegister().

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void InspectionBufferApplyTransforms	(	InspectionBuffer *	buffer,
		const DetectEngineTransforms *	transforms
	)

Definition at line 978 of file detect-engine.c.

References DetectEngineCtx_::app_inspect_engines, DetectEngineCtx_::app_mpms_list, DetectEngineCtx_::buffer_type_hash, DetectEngineCtx_::buffer_type_id, DetectEngineCtx_::buffer_type_map, DetectEngineCtx_::buffer_type_map_elements, BUG_ON, DetectBufferType_::description, DETECT_SM_LIST_DYNAMIC_START, DETECT_TRANSFORMS_MAX, DetectMpmInitializeAppMpms(), HashListTableFree(), HashListTableGetListData, HashListTableGetListHead(), HashListTableGetListNext, HashListTableInit(), DetectBufferType_::id, DetectBufferType_::mpm, DetectEngineAppInspectionEngine_::next, next, DetectMpmAppLayerRegistery_::next, DetectBufferType_::packet, PrefilterDeinit(), PrefilterInit(), SCCalloc, SCFree, SCLogDebug, DetectBufferType_::SetupCallback, sigmatch_table, DetectBufferType_::string, SigTableElmt_::Transform, DetectEngineTransforms::transforms, and DetectBufferType_::ValidateCallback.

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void InspectionBufferCheckAndExpand	(	InspectionBuffer *	buffer,
		uint32_t	min_size
	)

make sure that the buffer has at least 'min_size' bytes Expand the buffer if necessary

Definition at line 949 of file detect-engine.c.

References InspectionBuffer::buf, likely, SCRealloc, and InspectionBuffer::size.

Referenced by FileSwfDecompression(), and InspectionBufferCopy().

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void InspectionBufferClean ( DetectEngineThreadCtx * det_ctx )

Definition at line 845 of file detect-engine.c.

References DetectEngineThreadCtx_::buffers, InspectionBufferMultipleForList::init, InspectionBuffer::inspect, DetectEngineThreadCtx_::inspect, InspectionBufferMultipleForList::inspection_buffers, InspectionBufferMultipleForList::max, DetectEngineThreadCtx_::multi_inspect, DetectEngineThreadCtx_::to_clear_idx, and DetectEngineThreadCtx_::to_clear_queue.

void InspectionBufferCopy	(	InspectionBuffer *	buffer,
		uint8_t *	buf,
		uint32_t	buf_len
	)

Definition at line 966 of file detect-engine.c.

References InspectionBuffer::buf, InspectionBuffer::inspect, InspectionBuffer::inspect_len, InspectionBufferCheckAndExpand(), MIN, and InspectionBuffer::size.

Referenced by DetectTransformCompressWhitespaceRegister(), DetectTransformMd5Register(), DetectTransformSha1Register(), DetectTransformSha256Register(), and DetectTransformStripWhitespaceRegister().

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void InspectionBufferFree ( InspectionBuffer * buffer )

Definition at line 937 of file detect-engine.c.

References InspectionBuffer::buf, and SCFree.

Referenced by DetectEngineThreadCtxInit(), DetectTransformCompressWhitespaceRegister(), DetectTransformMd5Register(), DetectTransformSha1Register(), DetectTransformSha256Register(), and DetectTransformStripWhitespaceRegister().

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InspectionBuffer* InspectionBufferGet	(	DetectEngineThreadCtx *	det_ctx,
		const int	list_id
	)

Definition at line 871 of file detect-engine.c.

References DetectEngineThreadCtx_::buffers, InspectionBuffer::inspect, DetectEngineThreadCtx_::inspect, DetectEngineThreadCtx_::to_clear_idx, and DetectEngineThreadCtx_::to_clear_queue.

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InspectionBufferMultipleForList* InspectionBufferGetMulti	(	DetectEngineThreadCtx *	det_ctx,
		const int	list_id
	)

Definition at line 910 of file detect-engine.c.

References DetectEngineThreadCtx_::buffers, InspectionBufferMultipleForList::init, DetectEngineThreadCtx_::multi_inspect, DetectEngineThreadCtx_::to_clear_idx, and DetectEngineThreadCtx_::to_clear_queue.

Referenced by DetectFilenameRegister().

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void InspectionBufferInit	(	InspectionBuffer *	buffer,
		uint32_t	initial_size
	)

Definition at line 920 of file detect-engine.c.

References InspectionBuffer::buf, SCCalloc, and InspectionBuffer::size.

Referenced by DetectTransformCompressWhitespaceRegister(), DetectTransformMd5Register(), DetectTransformSha1Register(), DetectTransformSha256Register(), and DetectTransformStripWhitespaceRegister().

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InspectionBuffer* InspectionBufferMultipleForListGet	(	InspectionBufferMultipleForList *	fb,
		uint32_t	local_id
	)

for a InspectionBufferMultipleForList get a InspectionBuffer

Parameters

fb	the multiple buffer array
local_id	the index to get a buffer
buffer	the inspect buffer or NULL in case of error

Definition at line 884 of file detect-engine.c.

References InspectionBufferMultipleForList::inspection_buffers, MAX, InspectionBufferMultipleForList::max, SCLogDebug, SCRealloc, and InspectionBufferMultipleForList::size.

Referenced by DetectFilenameRegister().

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void InspectionBufferSetup	(	InspectionBuffer *	buffer,
		const uint8_t *	data,
		const uint32_t	data_len
	)

setup the buffer with our initial data

Definition at line 930 of file detect-engine.c.

References InspectionBuffer::inspect, InspectionBuffer::inspect_len, InspectionBuffer::len, InspectionBuffer::orig, and InspectionBuffer::orig_len.

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Variable Documentation

SCEnumCharMap det_ctx_event_table[]

Initial value:

= {
    { "TEST",                       DET_CTX_EVENT_TEST },
    { "NO_MEMORY",                  FILE_DECODER_EVENT_NO_MEM },
    { "INVALID_SWF_LENGTH",         FILE_DECODER_EVENT_INVALID_SWF_LENGTH },
    { "INVALID_SWF_VERSION",        FILE_DECODER_EVENT_INVALID_SWF_VERSION },
    { "Z_DATA_ERROR",               FILE_DECODER_EVENT_Z_DATA_ERROR },
    { "Z_STREAM_ERROR",             FILE_DECODER_EVENT_Z_STREAM_ERROR },
    { "Z_BUF_ERROR",                FILE_DECODER_EVENT_Z_BUF_ERROR },
    { "Z_UNKNOWN_ERROR",            FILE_DECODER_EVENT_Z_UNKNOWN_ERROR },
    { "LZMA_DECODER_ERROR",         FILE_DECODER_EVENT_LZMA_DECODER_ERROR },
    { "LZMA_MEMLIMIT_ERROR",        FILE_DECODER_EVENT_LZMA_MEMLIMIT_ERROR },
    { "LZMA_OPTIONS_ERROR",         FILE_DECODER_EVENT_LZMA_OPTIONS_ERROR },
    { "LZMA_FORMAT_ERROR",          FILE_DECODER_EVENT_LZMA_FORMAT_ERROR },
    { "LZMA_DATA_ERROR",            FILE_DECODER_EVENT_LZMA_DATA_ERROR },
    { "LZMA_BUF_ERROR",             FILE_DECODER_EVENT_LZMA_BUF_ERROR },
    { "LZMA_UNKNOWN_ERROR",         FILE_DECODER_EVENT_LZMA_UNKNOWN_ERROR },
    { NULL,                         -1 },
}

Definition at line 105 of file detect-engine.c.

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