detect-engine-payload.h File Reference

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Functions
int	PrefilterPktPayloadRegister (DetectEngineCtx *de_ctx, SigGroupHead *sgh, MpmCtx *mpm_ctx)
int	PrefilterPktStreamRegister (DetectEngineCtx *de_ctx, SigGroupHead *sgh, MpmCtx *mpm_ctx)
int	DetectEngineInspectPacketPayload (DetectEngineCtx *, DetectEngineThreadCtx *, const Signature *, Flow *, Packet *)
	Do the content inspection & validation for a signature. More...
int	DetectEngineInspectStreamPayload (DetectEngineCtx *, DetectEngineThreadCtx *, const Signature *, Flow *, Packet *)
	Do the content inspection & validation for a signature on the raw stream. More...
int	DetectEngineInspectStream (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)
	inspect engine for stateful rules More...
void	PayloadRegisterTests (void)

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-payload.h.

Function Documentation

DetectEngineInspectPacketPayload()

int DetectEngineInspectPacketPayload	(	DetectEngineCtx *	de_ctx,
		DetectEngineThreadCtx *	det_ctx,
		const Signature *	s,
		Flow *	f,
		Packet *	p
	)

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 (for pcre flowvar storage)
p	Packet

Return values

0	no match
1	match

Definition at line 146 of file detect-engine-payload.c.

References DetectEngineThreadCtx_::buffer_offset, de_ctx, StreamMpmData::det_ctx, DETECT_CI_FLAGS_SINGLE, DETECT_ENGINE_CONTENT_INSPECTION_MODE_PAYLOAD, DETECT_SM_LIST_PMATCH, DetectEngineContentInspection(), DetectEngineThreadCtx_::discontinue_matching, DetectEngineThreadCtx_::inspection_recursion_counter, Packet_::payload, Packet_::payload_len, DetectEngineThreadCtx_::replist, SCEnter, SCReturnInt, and Signature_::sm_arrays.

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DetectEngineInspectStream()

int DetectEngineInspectStream	(	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
	)

inspect engine for stateful rules

Caches results as it may be called multiple times if we inspect multiple transactions in one packet.

Returns "can't match" if depth is reached.

Definition at line 313 of file detect-engine-payload.c.

References StreamContentInspectEngineData::det_ctx, DetectEngineThreadCtx_::p, and Packet_::proto.

DetectEngineInspectStreamPayload()

int DetectEngineInspectStreamPayload	(	DetectEngineCtx *	de_ctx,
		DetectEngineThreadCtx *	det_ctx,
		const Signature *	s,
		Flow *	f,
		Packet *	p
	)

Do the content inspection & validation for a signature on the raw stream.

Parameters

de_ctx	Detection engine context
det_ctx	Detection engine thread context
s	Signature to inspect
f	flow (for pcre flowvar storage)

Return values

0	no match
1	match

Definition at line 259 of file detect-engine-payload.c.

References de_ctx, StreamContentInspectData::det_ctx, StreamContentInspectData::f, Signature_::flags, Flow_::protoctx, StreamContentInspectData::s, SCEnter, SCLogDebug, SIG_FLAG_FLUSH, and StreamReassembleRaw().

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PayloadRegisterTests()

void PayloadRegisterTests

(

void

)

Definition at line 1311 of file detect-engine-payload.c.

References UtRegisterTest().

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PrefilterPktPayloadRegister()

int PrefilterPktPayloadRegister	(	DetectEngineCtx *	de_ctx,
		SigGroupHead *	sgh,
		MpmCtx *	mpm_ctx
	)

Definition at line 126 of file detect-engine-payload.c.

References de_ctx, and PrefilterAppendPayloadEngine().

Referenced by PatternMatchPrepareGroup().

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PrefilterPktStreamRegister()

int PrefilterPktStreamRegister	(	DetectEngineCtx *	de_ctx,
		SigGroupHead *	sgh,
		MpmCtx *	mpm_ctx
	)

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

References de_ctx, and PrefilterAppendPayloadEngine().

Referenced by PatternMatchPrepareGroup().

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