detect-engine.c File Reference

#include "suricata-common.h"
#include "suricata.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 "datasets.h"
#include "app-layer-parser.h"
#include "app-layer-htp.h"
#include "detect-parse.h"
#include "detect-engine-sigorder.h"
#include "detect-engine-build.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-frame.h"
#include "detect-engine-file.h"
#include "detect-engine.h"
#include "detect-engine-state.h"
#include "detect-engine-payload.h"
#include "detect-fast-pattern.h"
#include "detect-byte-extract.h"
#include "detect-content.h"
#include "detect-uricontent.h"
#include "detect-tcphdr.h"
#include "detect-engine-threshold.h"
#include "detect-engine-content-inspection.h"
#include "detect-engine-loader.h"
#include "detect-engine-alert.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-private.h"
#include "util-var-name.h"
#include "util-path.h"
#include "util-profiling.h"
#include "util-validate.h"
#include "util-hash-string.h"
#include "util-enum.h"
#include "util-conf.h"
#include "tm-threads.h"
#include "runmodes.h"
#include "reputation.h"
#include "util-hash-lookup3.h"

Go to the source code of this file.

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	DetectPktInspectEngineRegister (const char *name, InspectionBufferGetPktDataPtr GetPktData, InspectionBufferPktInspectFunc Callback)
	register inspect engine at start up time More...
void	DetectAppLayerInspectEngineRegister (const char *name, AppProto alproto, uint32_t dir, int progress, InspectEngineFuncPtr Callback, InspectionBufferGetDataPtr GetData)
	Registers an app inspection engine. More...
void	DetectAppLayerInspectEngineRegisterSingle (const char *name, AppProto alproto, uint32_t dir, int progress, InspectEngineFuncPtr Callback, InspectionSingleBufferGetDataPtr GetData)
void	DetectEngineFrameInspectEngineRegister (DetectEngineCtx *de_ctx, const char *name, int dir, InspectionBufferFrameInspectFunc Callback, AppProto alproto, uint8_t type)
	register inspect engine at start up time More...
int	DetectEngineAppInspectionEngine2Signature (DetectEngineCtx *de_ctx, Signature *s)
void	DetectEngineAppInspectionEngineSignatureFree (DetectEngineCtx *de_ctx, Signature *s)
	free app inspect engines for a signature More...
int	DetectBufferTypeMaxId (void)
int	DetectBufferTypeRegister (const char *name)
void	DetectBufferTypeSupportsMultiInstance (const char *name)
void	DetectBufferTypeSupportsFrames (const char *name)
void	DetectBufferTypeSupportsPacket (const char *name)
void	DetectBufferTypeSupportsMpm (const char *name)
void	DetectBufferTypeSupportsTransformations (const char *name)
int	DetectBufferTypeGetByName (const char *name)
const DetectBufferType *	DetectEngineBufferTypeGetById (const DetectEngineCtx *de_ctx, const int id)
const char *	DetectEngineBufferTypeGetNameById (const DetectEngineCtx *de_ctx, const int id)
int	DetectEngineBufferTypeRegisterWithFrameEngines (DetectEngineCtx *de_ctx, const char *name, const int direction, const AppProto alproto, const uint8_t frame_type)
int	DetectEngineBufferTypeRegister (DetectEngineCtx *de_ctx, const char *name)
void	DetectBufferTypeSetDescriptionByName (const char *name, const char *desc)
const char *	DetectEngineBufferTypeGetDescriptionById (const DetectEngineCtx *de_ctx, const int id)
const char *	DetectBufferTypeGetDescriptionByName (const char *name)
void	DetectEngineBufferTypeSupportsFrames (DetectEngineCtx *de_ctx, const char *name)
void	DetectEngineBufferTypeSupportsPacket (DetectEngineCtx *de_ctx, const char *name)
void	DetectEngineBufferTypeSupportsMpm (DetectEngineCtx *de_ctx, const char *name)
void	DetectEngineBufferTypeSupportsTransformations (DetectEngineCtx *de_ctx, const char *name)
bool	DetectEngineBufferTypeSupportsMultiInstanceGetById (const DetectEngineCtx *de_ctx, const int id)
bool	DetectEngineBufferTypeSupportsPacketGetById (const DetectEngineCtx *de_ctx, const int id)
bool	DetectEngineBufferTypeSupportsMpmGetById (const DetectEngineCtx *de_ctx, const int id)
bool	DetectEngineBufferTypeSupportsFramesGetById (const DetectEngineCtx *de_ctx, const int id)
void	DetectBufferTypeRegisterSetupCallback (const char *name, void(*SetupCallback)(const DetectEngineCtx *, Signature *))
void	DetectEngineBufferRunSetupCallback (const DetectEngineCtx *de_ctx, const int id, Signature *s)
void	DetectBufferTypeRegisterValidateCallback (const char *name, bool(*ValidateCallback)(const Signature *, const char **sigerror, const DetectBufferType *))
bool	DetectEngineBufferRunValidateCallback (const DetectEngineCtx *de_ctx, const int id, const Signature *s, const char **sigerror)
bool	DetectBufferIsPresent (const Signature *s, const uint32_t buf_id)
bool	DetectEngineBufferTypeValidateTransform (DetectEngineCtx *de_ctx, int sm_list, const uint8_t *content, uint16_t content_len, const char **namestr)
	Check content byte array compatibility with transforms. More...
void	DetectBufferTypeCloseRegistration (void)
int	DetectEngineBufferTypeGetByIdTransforms (DetectEngineCtx *de_ctx, const int id, TransformData *transforms, int transform_cnt)
bool	DetectEnginePktInspectionRun (ThreadVars *tv, DetectEngineThreadCtx *det_ctx, const Signature *s, Flow *f, Packet *p, uint8_t *alert_flags)
int	DetectEnginePktInspectionSetup (Signature *s)
int	DetectEngineReloadStart (void)
int	DetectEngineReloadIsStart (void)
void	DetectEngineReloadSetIdle (void)
int	DetectEngineReloadIsIdle (void)
uint8_t	DetectEngineInspectGenericList (DetectEngineCtx *de_ctx, DetectEngineThreadCtx *det_ctx, const struct 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...
uint8_t	DetectEngineInspectBufferSingle (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...
uint8_t	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...
void	DetectAppLayerMultiRegister (const char *name, AppProto alproto, uint32_t dir, int progress, InspectionMultiBufferGetDataPtr GetData, int priority)
InspectionBuffer *	DetectGetSingleData (struct DetectEngineThreadCtx_ *det_ctx, const DetectEngineTransforms *transforms, Flow *f, const uint8_t flow_flags, void *txv, const int list_id, InspectionSingleBufferGetDataPtr GetBuf)
InspectionBuffer *	DetectGetMultiData (struct DetectEngineThreadCtx_ *det_ctx, const DetectEngineTransforms *transforms, Flow *f, const uint8_t flow_flags, void *txv, const int list_id, uint32_t index, InspectionMultiBufferGetDataPtr GetBuf)
uint8_t	DetectEngineInspectMultiBufferGeneric (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)
int	DetectEngineInspectPktBufferGeneric (DetectEngineThreadCtx *det_ctx, const DetectEnginePktInspectionEngine *engine, const Signature *s, Packet *p, uint8_t *_alert_flags)
	Do the content inspection & validation for a signature. More...
void	InjectPacketsForFlush (ThreadVars **detect_tvs, int no_of_detect_tvs)
bool	DetectEngineMpmCachingEnabled (void)
const char *	DetectEngineMpmCachingGetPath (void)
DetectEngineCtx *	DetectEngineCtxInitStubForMT (void)
DetectEngineCtx *	DetectEngineCtxInitStubForDD (void)
DetectEngineCtx *	DetectEngineCtxInit (void)
DetectEngineCtx *	DetectEngineCtxInitWithPrefix (const char *prefix, uint32_t tenant_id)
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...
DetectEngineThreadCtx *	DetectEngineThreadCtxInitForReload (ThreadVars *tv, DetectEngineCtx *new_de_ctx, int mt)
TmEcode	DetectEngineThreadCtxDeinit (ThreadVars *tv, void *data)
int	DetectRegisterThreadCtxFuncs (DetectEngineCtx *de_ctx, const char *name, void *(*InitFunc)(void *), void *data, void(*FreeFunc)(void *), int mode)
	Register Thread keyword context Funcs. More...
int	DetectUnregisterThreadCtxFuncs (DetectEngineCtx *de_ctx, void *data, const char *name)
	Remove Thread keyword context registration. 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	DetectEngineReloadTenantsBlocking (const int reload_cnt)
	Reload all tenants and wait for loading to complete. More...
int	DetectEngineMultiTenantSetup (const bool unix_socket)
	setup multi-detect / multi-tenancy More...
int	DetectEngineTenantRegisterLivedev (uint32_t tenant_id, int device_id)
int	DetectEngineTenantRegisterVlanId (uint32_t tenant_id, uint16_t vlan_id)
int	DetectEngineTenantUnregisterVlanId (uint32_t tenant_id, uint16_t vlan_id)
int	DetectEngineTenantRegisterPcapFile (uint32_t tenant_id)
int	DetectEngineTenantUnregisterPcapFile (uint32_t tenant_id)
DetectEngineCtx *	DetectEngineGetByTenantId (uint32_t tenant_id)
void	DetectEngineDeReference (DetectEngineCtx **de_ctx)
int	DetectEngineAddToMaster (DetectEngineCtx *de_ctx)
int	DetectEngineMoveToFreeList (DetectEngineCtx *de_ctx)
void	DetectEnginePruneFreeList (void)
void	DetectEngineClearMaster (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)
bool	DetectMd5ValidateCallback (const Signature *s, const char **sigerror, const DetectBufferType *map)
void	SCDetectEngineRegisterRateFilterCallback (SCDetectRateFilterFunc fn, void *arg)
	Register a callback when a rate_filter has been applied to an alert. More...
void	DetectEngineRegisterTests (void)

Variables
const struct SignatureProperties	signature_properties [SIG_TYPE_MAX]

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

DETECT_ENGINE_DEFAULT_INSPECTION_RECURSION_LIMIT

#define DETECT_ENGINE_DEFAULT_INSPECTION_RECURSION_LIMIT   3000

Definition at line 95 of file detect-engine.c.

Typedef Documentation

DetectEngineSyncer

typedef struct DetectEngineSyncer_ DetectEngineSyncer

TenantLoaderCtx

typedef struct TenantLoaderCtx_ TenantLoaderCtx

Enumeration Type Documentation

DetectEngineSyncState

enum DetectEngineSyncState

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

Definition at line 1861 of file detect-engine.c.

Function Documentation

DetectAppLayerInspectEngineRegister()

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

Registers an app inspection engine.

Parameters

name	Name of the detection list
alproto	App layer protocol for which we will register the engine.
direction	The direction for the engine: SIG_FLAG_TOSERVER or SIG_FLAG_TOCLIENT
progress	Minimal progress value for inspect engine to run
Callback	The engine callback.

Definition at line 249 of file detect-engine.c.

Referenced by DetectFileRegisterFileProtocols(), DetectRegisterAppLayerHookLists(), and SCDetectHelperBufferRegister().

Here is the caller graph for this function:

DetectAppLayerInspectEngineRegisterSingle()

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

Definition at line 271 of file detect-engine.c.

DetectAppLayerMultiRegister()

void DetectAppLayerMultiRegister	(	const char *	name,
		AppProto	alproto,
		uint32_t	dir,
		int	progress,
		InspectionMultiBufferGetDataPtr	GetData,
		int	priority
	)

Definition at line 2086 of file detect-engine.c.

DetectBufferIsPresent()

bool DetectBufferIsPresent	(	const Signature *	s,
		const uint32_t	buf_id
	)

Definition at line 1490 of file detect-engine.c.

References SignatureInitData_::buffer_index, SignatureInitData_::buffers, SignatureInitDataBuffer_::id, and Signature_::init_data.

DetectBufferTypeCloseRegistration()

void DetectBufferTypeCloseRegistration

(

void

)

Definition at line 1634 of file detect-engine.c.

References BUG_ON.

DetectBufferTypeGetByName()

int DetectBufferTypeGetByName

(

const char *

name

)

Definition at line 1256 of file detect-engine.c.

Referenced by DetectEngineAppInspectionEngine2Signature(), DetectFrameMpmRegister(), and DetectPktInspectEngineRegister().

Here is the caller graph for this function:

DetectBufferTypeGetDescriptionByName()

const char* DetectBufferTypeGetDescriptionByName

(

const char *

name

)

Definition at line 1373 of file detect-engine.c.

DetectBufferTypeMaxId()

int DetectBufferTypeMaxId

(

void

)

Definition at line 1013 of file detect-engine.c.

DetectBufferTypeRegister()

int DetectBufferTypeRegister

(

const char *

name

)

Definition at line 1192 of file detect-engine.c.

References BUG_ON.

Referenced by DetectPktInspectEngineRegister(), and SCDetectHelperBufferRegister().

Here is the caller graph for this function:

DetectBufferTypeRegisterSetupCallback()

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

Definition at line 1450 of file detect-engine.c.

References BUG_ON.

DetectBufferTypeRegisterValidateCallback()

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

Definition at line 1468 of file detect-engine.c.

References BUG_ON.

DetectBufferTypeSetDescriptionByName()

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

Definition at line 1353 of file detect-engine.c.

References BUG_ON.

DetectBufferTypeSupportsFrames()

void DetectBufferTypeSupportsFrames

(

const char *

name

)

Definition at line 1216 of file detect-engine.c.

References BUG_ON.

Referenced by DetectFrameMpmRegister().

Here is the caller graph for this function:

DetectBufferTypeSupportsMpm()

void DetectBufferTypeSupportsMpm

(

const char *

name

)

Definition at line 1236 of file detect-engine.c.

References BUG_ON.

Referenced by DetectFrameMpmRegister().

Here is the caller graph for this function:

DetectBufferTypeSupportsMultiInstance()

void DetectBufferTypeSupportsMultiInstance

(

const char *

name

)

Definition at line 1206 of file detect-engine.c.

References BUG_ON.

DetectBufferTypeSupportsPacket()

void DetectBufferTypeSupportsPacket

(

const char *

name

)

Definition at line 1226 of file detect-engine.c.

References BUG_ON.

DetectBufferTypeSupportsTransformations()

void DetectBufferTypeSupportsTransformations

(

const char *

name

)

Definition at line 1246 of file detect-engine.c.

References BUG_ON.

Referenced by DetectFrameMpmRegister().

Here is the caller graph for this function:

DetectEngineAddToMaster()

int DetectEngineAddToMaster

(

DetectEngineCtx *

de_ctx

)

Definition at line 4628 of file detect-engine.c.

References de_ctx, and SCLogDebug.

DetectEngineAppInspectionEngine2Signature()

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 777 of file detect-engine.c.

References SignatureInitData_::buffer_index, SignatureInitData_::buffers, de_ctx, DE_STATE_FLAG_BASE, DetectBufferTypeGetByName(), DetectEngineBufferTypeGetById(), FatalError, DetectBufferType_::frame, DetectEngineCtx_::frame_inspect_engines, SignatureInitDataBuffer_::head, SignatureInitDataBuffer_::id, Signature_::id, Signature_::init_data, SignatureInitData_::mpm_sm, SignatureInitData_::mpm_sm_list, DetectEngineFrameInspectionEngine::next, SCLogDebug, SigMatchList2DataArray(), and DetectEngineFrameInspectionEngine::sm_list.

Here is the call graph for this function:

DetectEngineAppInspectionEngineSignatureFree()

void DetectEngineAppInspectionEngineSignatureFree	(	DetectEngineCtx *	de_ctx,
		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 907 of file detect-engine.c.

References Signature_::app_inspect, BUG_ON, SigMatchData_::ctx, de_ctx, Signature_::frame_inspect, SigTableElmt_::Free, SigMatchData_::is_last, next, DetectEngineAppInspectionEngine_::next, DetectEnginePktInspectionEngine::next, DetectEngineFrameInspectionEngine::next, Signature_::pkt_inspect, SCFree, sigmatch_table, DetectEngineAppInspectionEngine_::smd, DetectEnginePktInspectionEngine::smd, DetectEngineFrameInspectionEngine::smd, and SigMatchData_::type.

DetectEngineBufferRunSetupCallback()

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

Definition at line 1460 of file detect-engine.c.

References de_ctx, DetectEngineBufferTypeGetById(), and DetectBufferType_::SetupCallback.

Here is the call graph for this function:

DetectEngineBufferRunValidateCallback()

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

Definition at line 1479 of file detect-engine.c.

References DetectEngineTransforms::cnt, de_ctx, DetectEngineBufferTypeGetById(), DetectBufferType_::transforms, and DetectBufferType_::ValidateCallback.

Here is the call graph for this function:

DetectEngineBufferTypeGetById()

const DetectBufferType* DetectEngineBufferTypeGetById	(	const DetectEngineCtx *	de_ctx,
		const int	id
	)

Definition at line 1276 of file detect-engine.c.

References DetectEngineCtx_::buffer_type_hash_id, de_ctx, HashListTableLookup(), DetectBufferType_::id, and id.

Referenced by DetectEngineAppInspectionEngine2Signature(), DetectEngineBufferRunSetupCallback(), DetectEngineBufferRunValidateCallback(), DetectEngineBufferTypeGetByIdTransforms(), DetectEngineBufferTypeGetDescriptionById(), DetectEngineBufferTypeGetNameById(), DetectEngineBufferTypeSupportsFramesGetById(), DetectEngineBufferTypeSupportsMpmGetById(), DetectEngineBufferTypeSupportsMultiInstanceGetById(), DetectEngineBufferTypeSupportsPacketGetById(), and DetectEngineBufferTypeValidateTransform().

Here is the call graph for this function:

Here is the caller graph for this function:

DetectEngineBufferTypeGetByIdTransforms()

int DetectEngineBufferTypeGetByIdTransforms	(	DetectEngineCtx *	de_ctx,
		const int	id,
		TransformData *	transforms,
		int	transform_cnt
	)

Definition at line 1641 of file detect-engine.c.

References DetectEngineTransforms::cnt, de_ctx, DetectEngineBufferTypeGetById(), DetectBufferType_::name, SCLogDebug, SCLogError, strlcpy(), DetectBufferType_::supports_transforms, DetectEngineTransforms::transforms, and DetectBufferType_::transforms.

Referenced by DetectBufferGetActiveList().

Here is the call graph for this function:

Here is the caller graph for this function:

DetectEngineBufferTypeGetDescriptionById()

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

Definition at line 1364 of file detect-engine.c.

References de_ctx, DetectBufferType_::description, and DetectEngineBufferTypeGetById().

Referenced by EngineAnalysisFP().

Here is the call graph for this function:

Here is the caller graph for this function:

DetectEngineBufferTypeGetNameById()

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

Definition at line 1286 of file detect-engine.c.

References de_ctx, DetectEngineBufferTypeGetById(), and DetectBufferType_::name.

Referenced by DumpPatterns(), EngineAnalysisFP(), and EngineAnalysisRules2().

Here is the call graph for this function:

Here is the caller graph for this function:

DetectEngineBufferTypeRegister()

int DetectEngineBufferTypeRegister	(	DetectEngineCtx *	de_ctx,
		const char *	name
	)

Definition at line 1343 of file detect-engine.c.

Referenced by DetectEngineFrameInspectEngineRegister(), and DetectEngineFrameMpmRegister().

Here is the caller graph for this function:

DetectEngineBufferTypeRegisterWithFrameEngines()

int DetectEngineBufferTypeRegisterWithFrameEngines	(	DetectEngineCtx *	de_ctx,
		const char *	name,
		const int	direction,
		const AppProto	alproto,
		const uint8_t	frame_type
	)

Definition at line 1309 of file detect-engine.c.

DetectEngineBufferTypeSupportsFrames()

void DetectEngineBufferTypeSupportsFrames	(	DetectEngineCtx *	de_ctx,
		const char *	name
	)

Definition at line 1382 of file detect-engine.c.

Referenced by DetectEngineFrameMpmRegister().

Here is the caller graph for this function:

DetectEngineBufferTypeSupportsFramesGetById()

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

Definition at line 1441 of file detect-engine.c.

References de_ctx, DetectEngineBufferTypeGetById(), DetectBufferType_::frame, and SCLogDebug.

Here is the call graph for this function:

DetectEngineBufferTypeSupportsMpm()

void DetectEngineBufferTypeSupportsMpm	(	DetectEngineCtx *	de_ctx,
		const char *	name
	)

Definition at line 1398 of file detect-engine.c.

Referenced by DetectEngineFrameMpmRegister().

Here is the caller graph for this function:

DetectEngineBufferTypeSupportsMpmGetById()

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

Definition at line 1432 of file detect-engine.c.

References de_ctx, DetectEngineBufferTypeGetById(), DetectBufferType_::mpm, and SCLogDebug.

Referenced by DetectGetLastSMFromMpmLists(), and FastPatternSupportEnabledForSigMatchList().

Here is the call graph for this function:

Here is the caller graph for this function:

DetectEngineBufferTypeSupportsMultiInstanceGetById()

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

Definition at line 1414 of file detect-engine.c.

References BOOL2STR, de_ctx, DetectEngineBufferTypeGetById(), DetectBufferType_::multi_instance, and SCLogDebug.

Referenced by DetectBufferGetActiveList().

Here is the call graph for this function:

Here is the caller graph for this function:

DetectEngineBufferTypeSupportsPacket()

void DetectEngineBufferTypeSupportsPacket	(	DetectEngineCtx *	de_ctx,
		const char *	name
	)

Definition at line 1390 of file detect-engine.c.

DetectEngineBufferTypeSupportsPacketGetById()

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

Definition at line 1423 of file detect-engine.c.

References de_ctx, DetectEngineBufferTypeGetById(), DetectBufferType_::packet, and SCLogDebug.

Here is the call graph for this function:

DetectEngineBufferTypeSupportsTransformations()

void DetectEngineBufferTypeSupportsTransformations	(	DetectEngineCtx *	de_ctx,
		const char *	name
	)

Definition at line 1406 of file detect-engine.c.

Referenced by DetectEngineFrameMpmRegister().

Here is the caller graph for this function:

DetectEngineBufferTypeValidateTransform()

bool DetectEngineBufferTypeValidateTransform	(	DetectEngineCtx *	de_ctx,
		int	sm_list,
		const uint8_t *	content,
		uint16_t	content_len,
		const char **	namestr
	)

Check content byte array compatibility with transforms.

The "content" array is presented to the transforms so that each transform may validate that it's compatible with the transform.

When a transform indicates the byte array is incompatible, none of the subsequent transforms, if any, are invoked. This means the first validation failure terminates the loop.

Parameters

de_ctx	Detection engine context.
sm_list	The SM list id.
content	The byte array being validated
namestr	returns the name of the transform that is incompatible with content.

Return values

true	(false) If any of the transforms indicate the byte array is (is not) compatible.

Definition at line 1518 of file detect-engine.c.

References BUG_ON, DetectEngineTransforms::cnt, de_ctx, DetectEngineBufferTypeGetById(), SigTableElmt_::name, TransformData_::options, sigmatch_table, TransformData_::transform, DetectEngineTransforms::transforms, DetectBufferType_::transforms, and SigTableElmt_::TransformValidate.

Referenced by DetectContentSetup().

Here is the call graph for this function:

Here is the caller graph for this function:

DetectEngineBumpVersion()

void DetectEngineBumpVersion

(

void

)

Definition at line 3804 of file detect-engine.c.

DetectEngineClearMaster()

void DetectEngineClearMaster

(

void

)

Definition at line 4728 of file detect-engine.c.

Referenced by GlobalsDestroy().

Here is the caller graph for this function:

DetectEngineCtxFree()

void DetectEngineCtxFree

(

DetectEngineCtx *

de_ctx

)

Free a DetectEngineCtx::

Parameters

de_ctx

DetectEngineCtx:: to be freed

Definition at line 2624 of file detect-engine.c.

References MpmTableElmt_::ConfigDeinit, de_ctx, DetectEngineFreeFastPatternList(), DetectParseDupSigHashFree(), DetectEngineCtx_::filedata_config, DetectEngineCtx_::mpm_cfg, DetectEngineCtx_::mpm_matcher, mpm_table, MpmFactoryDeRegisterAllMpmCtxProfiles(), MpmStoreFree(), DetectEngineCtx_::profile_keyword_ctx, DetectEngineCtx_::profile_sgh_ctx, SCClassConfDeInitContext(), SCFree, SCProfilingKeywordDestroyCtx(), SCProfilingPrefilterDestroyCtx(), SCProfilingSghDestroyCtx(), SCRConfDeInitContext(), SCSigSignatureOrderingModuleCleanup(), DetectEngineCtx_::sig_array, SigCleanSignatures(), SigGroupCleanup(), SigGroupHeadHashFree(), DetectEngineCtx_::sm_types_prefilter, DetectEngineCtx_::sm_types_silent_error, DetectEngineCtx_::spm_global_thread_ctx, and SpmDestroyGlobalThreadCtx().

Referenced by LLVMFuzzerTestOneInput(), UTHGenericTest(), UTHPacketMatchSig(), UTHPacketMatchSigMpm(), and UTHParseSignature().

Here is the call graph for this function:

Here is the caller graph for this function:

DetectEngineCtxInit()

DetectEngineCtx* DetectEngineCtxInit

(

void

)

Definition at line 2585 of file detect-engine.c.

Referenced by DetectEngineCtxInitWithPrefix(), LLVMFuzzerTestOneInput(), UTHGenericTest(), UTHPacketMatchSig(), UTHPacketMatchSigMpm(), and UTHParseSignature().

Here is the caller graph for this function:

DetectEngineCtxInitStubForDD()

DetectEngineCtx* DetectEngineCtxInitStubForDD

(

void

)

Definition at line 2580 of file detect-engine.c.

DetectEngineCtxInitStubForMT()

DetectEngineCtx* DetectEngineCtxInitStubForMT

(

void

)

Definition at line 2575 of file detect-engine.c.

DetectEngineCtxInitWithPrefix()

DetectEngineCtx* DetectEngineCtxInitWithPrefix	(	const char *	prefix,
		uint32_t	tenant_id
	)

Definition at line 2590 of file detect-engine.c.

References DetectEngineCtxInit().

Here is the call graph for this function:

DetectEngineDeReference()

void DetectEngineDeReference

(

DetectEngineCtx **

de_ctx

)

Definition at line 4604 of file detect-engine.c.

References BUG_ON, and de_ctx.

Referenced by GlobalsDestroy(), and SCDetectEngineRegisterRateFilterCallback().

Here is the caller graph for this function:

DetectEngineEnabled()

int DetectEngineEnabled

(

void

)

Check if detection is enabled.

Return values

bool	true or false

Definition at line 3780 of file detect-engine.c.

DetectEngineFrameInspectEngineRegister()

void DetectEngineFrameInspectEngineRegister	(	DetectEngineCtx *	de_ctx,
		const char *	name,
		int	dir,
		InspectionBufferFrameInspectFunc	Callback,
		AppProto	alproto,
		uint8_t	type
	)

register inspect engine at start up time

Note

errors are fatal

Definition at line 427 of file detect-engine.c.

References DetectEngineFrameInspectionEngine::alproto, BUG_ON, DetectEngineFrameInspectionEngine::Callback, de_ctx, DETECT_SM_LIST_MATCH, DetectEngineBufferTypeRegister(), DetectEngineFrameInspectionEngine::dir, FatalError, DetectEngineCtx_::frame_inspect_engines, name, SCCalloc, SCLogError, SIG_FLAG_TOSERVER, DetectEngineFrameInspectionEngine::sm_list, DetectEngineFrameInspectionEngine::sm_list_base, type, DetectEngineFrameInspectionEngine::type, unlikely, and DetectEngineFrameInspectionEngine::v1.

Here is the call graph for this function:

DetectEngineGetByTenantId()

DetectEngineCtx* DetectEngineGetByTenantId

(

uint32_t

tenant_id

)

Definition at line 4578 of file detect-engine.c.

DetectEngineGetCurrent()

DetectEngineCtx* DetectEngineGetCurrent

(

void

)

Definition at line 3813 of file detect-engine.c.

Referenced by DetectEngineThreadCtxInit(), GlobalsDestroy(), and SCDetectEngineRegisterRateFilterCallback().

Here is the caller graph for this function:

DetectEngineGetVersion()

uint32_t DetectEngineGetVersion

(

void

)

Definition at line 3794 of file detect-engine.c.

References version.

DetectEngineInspectBufferGeneric()

uint8_t 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 2036 of file detect-engine.c.

References Flow_::alproto, AppLayerParserGetStateProgress(), de_ctx, 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, DetectEngineContentInspection(), flags, InspectionBuffer::flags, DetectEngineAppInspectionEngine_::GetData, InspectionBuffer::inspect, InspectionBuffer::inspect_len, InspectionBuffer::inspect_offset, DetectEngineAppInspectionEngine_::match_on_null, DetectEngineAppInspectionEngine_::mpm, offset, DetectEngineAppInspectionEngine_::progress, Flow_::proto, SCLogDebug, DetectEngineAppInspectionEngine_::sm_list, DetectEngineAppInspectionEngine_::smd, DetectEngineAppInspectionEngine_::transforms, unlikely, and DetectEngineAppInspectionEngine_::v2.

Here is the call graph for this function:

DetectEngineInspectBufferSingle()

uint8_t DetectEngineInspectBufferSingle	(	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 1975 of file detect-engine.c.

References Flow_::alproto, AppLayerParserGetStateProgress(), de_ctx, 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, DetectEngineContentInspection(), DetectGetSingleData(), flags, InspectionBuffer::flags, DetectEngineAppInspectionEngine_::GetDataSingle, InspectionBuffer::inspect, InspectionBuffer::inspect_len, InspectionBuffer::inspect_offset, DetectEngineAppInspectionEngine_::match_on_null, DetectEngineAppInspectionEngine_::mpm, offset, DetectEngineAppInspectionEngine_::progress, Flow_::proto, SCLogDebug, DetectEngineAppInspectionEngine_::sm_list, DetectEngineAppInspectionEngine_::smd, DetectEngineAppInspectionEngine_::transforms, unlikely, and DetectEngineAppInspectionEngine_::v2.

Here is the call graph for this function:

DetectEngineInspectGenericList()

uint8_t DetectEngineInspectGenericList	(	DetectEngineCtx *	de_ctx,
		DetectEngineThreadCtx *	det_ctx,
		const struct 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
sm	SigMatch to inspect
f	Flow
flags	app layer flags
state	App layer state

Return values

0	no match
1	match

Definition at line 1933 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, flags, SigMatchData_::is_last, KEYWORD_PROFILING_END, KEYWORD_PROFILING_START, SCLogDebug, sigmatch_table, DetectEngineAppInspectionEngine_::smd, and SigMatchData_::type.

Referenced by DetectRegisterAppLayerHookLists(), and SCDetectHelperBufferRegister().

Here is the caller graph for this function:

DetectEngineInspectMultiBufferGeneric()

uint8_t DetectEngineInspectMultiBufferGeneric	(	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
	)

Definition at line 2136 of file detect-engine.c.

References Flow_::alproto, AppLayerParserGetStateProgress(), de_ctx, DETECT_ENGINE_CONTENT_INSPECTION_MODE_STATE, DETECT_ENGINE_INSPECT_SIG_MATCH, DETECT_ENGINE_INSPECT_SIG_NO_MATCH, DetectEngineContentInspectionBuffer(), DetectGetMultiData(), flags, DetectEngineAppInspectionEngine_::GetMultiData, InspectionBuffer::inspect, DetectEngineAppInspectionEngine_::match_on_null, DetectEngineAppInspectionEngine_::mpm, DetectEngineAppInspectionEngine_::progress, Flow_::proto, DetectEngineAppInspectionEngine_::sm_list, DetectEngineAppInspectionEngine_::smd, DetectEngineAppInspectionEngine_::transforms, and DetectEngineAppInspectionEngine_::v2.

Here is the call graph for this function:

DetectEngineInspectPktBufferGeneric()

int DetectEngineInspectPktBufferGeneric	(	DetectEngineThreadCtx *	det_ctx,
		const DetectEnginePktInspectionEngine *	engine,
		const Signature *	s,
		Packet *	p,
		uint8_t *	_alert_flags
	)

Do the content inspection & validation for a signature.

Parameters

de_ctx	Detection engine context
det_ctx	Detection engine thread context
s	Signature to inspect
p	Packet

Return values

0	no match.
1	match.

Definition at line 2184 of file detect-engine.c.

References DetectEngineThreadCtx_::de_ctx, DETECT_CI_FLAGS_END, DETECT_CI_FLAGS_START, DETECT_ENGINE_CONTENT_INSPECTION_MODE_HEADER, DETECT_ENGINE_INSPECT_SIG_MATCH, DETECT_ENGINE_INSPECT_SIG_NO_MATCH, DetectEngineContentInspection(), InspectionBuffer::flags, Packet_::flow, DetectEnginePktInspectionEngine::GetData, InspectionBuffer::inspect, InspectionBuffer::inspect_len, DetectEnginePktInspectionEngine::mpm, SCLogDebug, DetectEnginePktInspectionEngine::sm_list, DetectEnginePktInspectionEngine::smd, DetectEnginePktInspectionEngine::transforms, unlikely, and DetectEnginePktInspectionEngine::v1.

Here is the call graph for this function:

DetectEngineLoadTenantBlocking()

int DetectEngineLoadTenantBlocking	(	uint32_t	tenant_id,
		const char *	yaml
	)

Load a tenant and wait for loading to complete.

Definition at line 4102 of file detect-engine.c.

DetectEngineMoveToFreeList()

int DetectEngineMoveToFreeList

(

DetectEngineCtx *

de_ctx

)

Definition at line 4688 of file detect-engine.c.

Referenced by GlobalsDestroy().

Here is the caller graph for this function:

DetectEngineMpmCachingEnabled()

bool DetectEngineMpmCachingEnabled

(

void

)

Definition at line 2441 of file detect-engine.c.

References SCConfGet(), and SCConfGetBool().

Referenced by DetectEngineMpmCachingGetPath().

Here is the call graph for this function:

Here is the caller graph for this function:

DetectEngineMpmCachingGetPath()

const char* DetectEngineMpmCachingGetPath

(

void

)

Definition at line 2452 of file detect-engine.c.

References DetectEngineMpmCachingEnabled(), SCConfGet(), and SCLogInfo.

Here is the call graph for this function:

DetectEngineMTApply()

int DetectEngineMTApply

(

void

)

Definition at line 4879 of file detect-engine.c.

DetectEngineMultiTenantEnabled()

int DetectEngineMultiTenantEnabled

(

void

)

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

Definition at line 3845 of file detect-engine.c.

DetectEngineMultiTenantSetup()

int DetectEngineMultiTenantSetup

(

const bool

unix_socket

)

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 4265 of file detect-engine.c.

References TENANT_SELECTOR_UNKNOWN.

DetectEngineMustParseMetadata()

int DetectEngineMustParseMetadata

(

void

)

Definition at line 4946 of file detect-engine.c.

Referenced by DetectMetadataHashInit().

Here is the caller graph for this function:

DetectEnginePktInspectionRun()

bool DetectEnginePktInspectionRun	(	ThreadVars *	tv,
		DetectEngineThreadCtx *	det_ctx,
		const Signature *	s,
		Flow *	f,
		Packet *	p,
		uint8_t *	alert_flags
	)

Definition at line 1791 of file detect-engine.c.

References DetectEnginePktInspectionEngine::Callback, DETECT_ENGINE_INSPECT_SIG_MATCH, Signature_::id, DetectEnginePktInspectionEngine::next, Signature_::pkt_inspect, SCEnter, SCLogDebug, and DetectEnginePktInspectionEngine::v1.

DetectEnginePktInspectionSetup()

int DetectEnginePktInspectionSetup

(

Signature *

s

)

Definition at line 1839 of file detect-engine.c.

References DETECT_SM_LIST_PMATCH, Signature_::init_data, SignatureInitData_::init_flags, SIG_FLAG_INIT_STATE_MATCH, and Signature_::sm_arrays.

DetectEnginePruneFreeList()

void DetectEnginePruneFreeList

(

void

)

Definition at line 4698 of file detect-engine.c.

DetectEngineReference()

DetectEngineCtx* DetectEngineReference

(

DetectEngineCtx *

de_ctx

)

Definition at line 3836 of file detect-engine.c.

References de_ctx, and DetectEngineCtx_::ref_cnt.

Referenced by DetectEngineThreadCtxInitForReload().

Here is the caller graph for this function:

DetectEngineRegisterTests()

void DetectEngineRegisterTests

(

void

)

Definition at line 5237 of file detect-engine.c.

References UtRegisterTest().

Here is the call graph for this function:

DetectEngineReload()

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 4755 of file detect-engine.c.

References SCInstance_::conf_filename, and SCLogNotice.

Referenced by SuricataMainLoop().

Here is the caller graph for this function:

DetectEngineReloadIsIdle()

int DetectEngineReloadIsIdle

(

void

)

Definition at line 1909 of file detect-engine.c.

References SCMutexLock.

DetectEngineReloadIsStart()

int DetectEngineReloadIsStart

(

void

)

Definition at line 1889 of file detect-engine.c.

References SCMutexLock.

Referenced by SuricataMainLoop().

Here is the caller graph for this function:

DetectEngineReloadSetIdle()

void DetectEngineReloadSetIdle

(

void

)

Definition at line 1901 of file detect-engine.c.

References SCMutexLock.

Referenced by SuricataMainLoop().

Here is the caller graph for this function:

DetectEngineReloadStart()

int DetectEngineReloadStart

(

void

)

Definition at line 1875 of file detect-engine.c.

References SCMutexLock.

Referenced by SuricataMainLoop().

Here is the caller graph for this function:

DetectEngineReloadTenantBlocking()

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

Reload a tenant and wait for loading to complete.

Definition at line 4116 of file detect-engine.c.

DetectEngineReloadTenantsBlocking()

int DetectEngineReloadTenantsBlocking

(

const int

reload_cnt

)

Reload all tenants and wait for loading to complete.

Definition at line 4130 of file detect-engine.c.

DetectEngineResetMaxSigId()

void DetectEngineResetMaxSigId

(

DetectEngineCtx *

de_ctx

)

Definition at line 3036 of file detect-engine.c.

References de_ctx, and DetectEngineCtx_::signum.

Referenced by SigCleanSignatures().

Here is the caller graph for this function:

DetectEngineSetEvent()

void DetectEngineSetEvent	(	DetectEngineThreadCtx *	det_ctx,
		uint8_t	e
	)

Definition at line 4980 of file detect-engine.c.

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

Referenced by FileSwfDecompression(), FileSwfLzmaDecompression(), FileSwfZlibDecompression(), InspectionBufferMultipleForListGet(), and PostRuleMatchWorkQueueAppend().

Here is the call graph for this function:

Here is the caller graph for this function:

DetectEngineSetParseMetadata()

void DetectEngineSetParseMetadata

(

void

)

Definition at line 4936 of file detect-engine.c.

DetectEngineTenantRegisterLivedev()

int DetectEngineTenantRegisterLivedev	(	uint32_t	tenant_id,
		int	device_id
	)

Definition at line 4545 of file detect-engine.c.

DetectEngineTenantRegisterPcapFile()

int DetectEngineTenantRegisterPcapFile

(

uint32_t

tenant_id

)

Definition at line 4561 of file detect-engine.c.

References SCLogInfo, and TENANT_SELECTOR_DIRECT.

DetectEngineTenantRegisterVlanId()

int DetectEngineTenantRegisterVlanId	(	uint32_t	tenant_id,
		uint16_t	vlan_id
	)

Definition at line 4551 of file detect-engine.c.

DetectEngineTenantUnregisterPcapFile()

int DetectEngineTenantUnregisterPcapFile

(

uint32_t

tenant_id

)

Definition at line 4567 of file detect-engine.c.

References SCLogInfo, and TENANT_SELECTOR_DIRECT.

DetectEngineTenantUnregisterVlanId()

int DetectEngineTenantUnregisterVlanId	(	uint32_t	tenant_id,
		uint16_t	vlan_id
	)

Definition at line 4556 of file detect-engine.c.

DetectEngineThreadCtxDeinit()

TmEcode DetectEngineThreadCtxDeinit	(	ThreadVars *	tv,
		void *	data
	)

Definition at line 3576 of file detect-engine.c.

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

Referenced by DetectEngineThreadCtxInit(), UTHMatchPackets(), UTHMatchPacketsWithResults(), UTHPacketMatchSig(), and UTHPacketMatchSigMpm().

Here is the call graph for this function:

Here is the caller graph for this function:

DetectEngineThreadCtxInit()

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 errors

alert counter setup

Definition at line 3350 of file detect-engine.c.

References DetectEngineThreadCtx_::de_ctx, DETECT_ENGINE_TYPE_NORMAL, DETECT_ENGINE_TYPE_TENANT, DetectEngineGetCurrent(), DetectEngineThreadCtxDeinit(), RunmodeIsUnittests(), SCCalloc, TM_ECODE_FAILED, tv, DetectEngineThreadCtx_::tv, DetectEngineCtx_::type, and unlikely.

Referenced by UTHMatchPackets(), UTHMatchPacketsWithResults(), UTHPacketMatchSig(), and UTHPacketMatchSigMpm().

Here is the call graph for this function:

Here is the caller graph for this function:

DetectEngineThreadCtxInitForReload()

DetectEngineThreadCtx* DetectEngineThreadCtxInitForReload	(	ThreadVars *	tv,
		DetectEngineCtx *	new_de_ctx,
		int	mt
	)

alert counter setup

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

References DetectEngineThreadCtx_::de_ctx, DETECT_ENGINE_TYPE_NORMAL, DETECT_ENGINE_TYPE_TENANT, DetectEngineReference(), SCCalloc, SCFree, DetectEngineCtx_::tenant_id, DetectEngineThreadCtx_::tenant_id, tv, DetectEngineThreadCtx_::tv, DetectEngineCtx_::type, and unlikely.

Here is the call graph for this function:

DetectEngineUnsetParseMetadata()

void DetectEngineUnsetParseMetadata

(

void

)

Definition at line 4941 of file detect-engine.c.

DetectGetMultiData()

InspectionBuffer* DetectGetMultiData	(	struct DetectEngineThreadCtx_ *	det_ctx,
		const DetectEngineTransforms *	transforms,
		Flow *	f,
		const uint8_t	flow_flags,
		void *	txv,
		const int	list_id,
		uint32_t	index,
		InspectionMultiBufferGetDataPtr	GetBuf
	)

Definition at line 2112 of file detect-engine.c.

References DETECT_CI_FLAGS_SINGLE, InspectionBuffer::flags, InspectionBuffer::initialized, InspectionBufferMultipleForListGet(), InspectionBufferSetupMulti(), and InspectionBufferSetupMultiEmpty().

Referenced by DetectEngineInspectMultiBufferGeneric().

Here is the call graph for this function:

Here is the caller graph for this function:

DetectGetSingleData()

InspectionBuffer* DetectGetSingleData	(	struct DetectEngineThreadCtx_ *	det_ctx,
		const DetectEngineTransforms *	transforms,
		Flow *	f,
		const uint8_t	flow_flags,
		void *	txv,
		const int	list_id,
		InspectionSingleBufferGetDataPtr	GetBuf
	)

Definition at line 2095 of file detect-engine.c.

References InspectionBuffer::inspect, InspectionBufferGet(), and InspectionBufferSetupAndApplyTransforms().

Referenced by DetectEngineInspectBufferSingle().

Here is the call graph for this function:

Here is the caller graph for this function:

DetectMd5ValidateCallback()

bool DetectMd5ValidateCallback	(	const Signature *	s,
		const char **	sigerror,
		const DetectBufferType *	map
	)

Definition at line 4986 of file detect-engine.c.

References SignatureInitData_::buffer_index, SignatureInitData_::buffers, DetectContentData_::content, DetectContentData_::content_len, SigMatch_::ctx, DETECT_CONTENT, DETECT_CONTENT_NOCASE, DetectContentData_::flags, SignatureInitDataBuffer_::head, DetectBufferType_::id, SignatureInitDataBuffer_::id, Signature_::id, Signature_::init_data, DetectBufferType_::name, SigMatch_::next, SCLogError, SCLogWarning, and SigMatch_::type.

DetectPktInspectEngineRegister()

void DetectPktInspectEngineRegister	(	const char *	name,
		InspectionBufferGetPktDataPtr	GetPktData,
		InspectionBufferPktInspectFunc	Callback
	)

register inspect engine at start up time

Note

errors are fatal

Definition at line 132 of file detect-engine.c.

References BUG_ON, DetectEnginePktInspectionEngine::Callback, DETECT_SM_LIST_MATCH, DetectBufferTypeGetByName(), DetectBufferTypeRegister(), FatalError, DetectEnginePktInspectionEngine::GetData, name, SCCalloc, SCLogError, DetectEnginePktInspectionEngine::sm_list, DetectEnginePktInspectionEngine::sm_list_base, unlikely, and DetectEnginePktInspectionEngine::v1.

Here is the call graph for this function:

DetectRegisterThreadCtxFuncs()

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. Can be NULL.
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 3634 of file detect-engine.c.

References BUG_ON, de_ctx, HashListTableInit(), and DetectEngineCtx_::keyword_hash.

Here is the call graph for this function:

DetectRegisterThreadCtxGlobalFuncs()

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 3724 of file detect-engine.c.

References BUG_ON, and id.

DetectSigmatchListEnumToString()

const char* DetectSigmatchListEnumToString

(

enum DetectSigmatchListEnum

type

)

Definition at line 4951 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, DETECT_SM_LIST_TMATCH, and type.

DetectThreadCtxGetGlobalKeywordThreadCtx()

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 3768 of file detect-engine.c.

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

Referenced by HttpHeaderGetBufferSpace().

Here is the caller graph for this function:

DetectThreadCtxGetKeywordThreadCtx()

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 3704 of file detect-engine.c.

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

Referenced by DetectLuaMatchBuffer(), and DetectPcrePayloadMatch().

Here is the caller graph for this function:

DetectUnregisterThreadCtxFuncs()

int DetectUnregisterThreadCtxFuncs	(	DetectEngineCtx *	de_ctx,
		void *	data,
		const char *	name
	)

Remove Thread keyword context registration.

Parameters

de_ctx	detection engine to deregister from
det_ctx	detection engine thread context to deregister from
data	keyword init data to pass to Func. Can be NULL.
name	keyword name for error printing

Return values

1	Item unregistered
0	otherwise

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 3686 of file detect-engine.c.

References DetectEngineThreadKeywordCtxItem_::data, de_ctx, HashListTableRemove(), DetectEngineCtx_::keyword_hash, and name.

Here is the call graph for this function:

InjectPacketsForFlush()

void InjectPacketsForFlush	(	ThreadVars **	detect_tvs,
		int	no_of_detect_tvs
	)

Definition at line 2226 of file detect-engine.c.

References PacketQueue_::cond_q, Packet_::flags, PacketQueue_::mutex_q, name, PacketEnqueue(), PacketGetFromAlloc(), PKT_PSEUDO_LOG_FLUSH, PKT_PSEUDO_STREAM_END, PKT_SET_SRC, PKT_SRC_DETECT_RELOAD_FLUSH, SCCondSignal, SCLogDebug, SCMutexLock, SCMutexUnlock, and ThreadVars_::stream_pq.

Here is the call graph for this function:

SCDetectEngineRegisterRateFilterCallback()

void SCDetectEngineRegisterRateFilterCallback	(	SCDetectRateFilterFunc	cb,
		void *	arg
	)

Register a callback when a rate_filter has been applied to an alert.

This callback is added to the current detection engine and will be copied to all future detection engines over rule reloads.

Definition at line 5027 of file detect-engine.c.

References de_ctx, DetectEngineDeReference(), DetectEngineGetCurrent(), DetectEngineCtx_::rate_filter_callback_arg, and DetectEngineCtx_::RateFilterCallback.

Referenced by main().

Here is the call graph for this function:

Here is the caller graph for this function:

Variable Documentation

signature_properties

const struct SignatureProperties signature_properties[SIG_TYPE_MAX]

Initial value:

= {
          { SIG_PROP_FLOW_ACTION_PACKET, },
           { SIG_PROP_FLOW_ACTION_FLOW, },
      { SIG_PROP_FLOW_ACTION_FLOW, },
           { SIG_PROP_FLOW_ACTION_FLOW, },
           { SIG_PROP_FLOW_ACTION_PACKET, },
              { SIG_PROP_FLOW_ACTION_PACKET, },
       { SIG_PROP_FLOW_ACTION_FLOW_IF_STATEFUL, },
           { SIG_PROP_FLOW_ACTION_FLOW_IF_STATEFUL, },
         { SIG_PROP_FLOW_ACTION_FLOW, },
           { SIG_PROP_FLOW_ACTION_FLOW, },
}

Definition at line 110 of file detect-engine.c.

Referenced by EngineAnalysisRules2().