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Data Structures | Typedefs | Functions
detect-engine-prefilter.h File Reference
#include "detect-engine-state.h"
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Data Structures

struct  PrefilterStore_
 

Typedefs

typedef struct PrefilterStore_ PrefilterStore
 

Functions

void Prefilter (DetectEngineThreadCtx *, const SigGroupHead *, Packet *p, const uint8_t flags)
 
int PrefilterAppendEngine (DetectEngineCtx *de_ctx, SigGroupHead *sgh, void(*Prefilter)(DetectEngineThreadCtx *det_ctx, Packet *p, const void *pectx), void *pectx, void(*FreeFunc)(void *pectx), const char *name)
 
int PrefilterAppendPayloadEngine (DetectEngineCtx *de_ctx, SigGroupHead *sgh, void(*Prefilter)(DetectEngineThreadCtx *det_ctx, Packet *p, const void *pectx), void *pectx, void(*FreeFunc)(void *pectx), const char *name)
 
int PrefilterAppendTxEngine (DetectEngineCtx *de_ctx, SigGroupHead *sgh, void(*PrefilterTx)(DetectEngineThreadCtx *det_ctx, const void *pectx, Packet *p, Flow *f, void *tx, const uint64_t idx, const uint8_t flags), const AppProto alproto, const int tx_min_progress, void *pectx, void(*FreeFunc)(void *pectx), const char *name)
 
void DetectRunPrefilterTx (DetectEngineThreadCtx *det_ctx, const SigGroupHead *sgh, Packet *p, const uint8_t ipproto, const uint8_t flow_flags, const AppProto alproto, void *alstate, DetectTransaction *tx)
 run prefilter engines on a transaction More...
 
void PrefilterFreeEnginesList (PrefilterEngineList *list)
 
void PrefilterSetupRuleGroup (DetectEngineCtx *de_ctx, SigGroupHead *sgh)
 
void PrefilterCleanupRuleGroup (const DetectEngineCtx *de_ctx, SigGroupHead *sgh)
 
const char * PrefilterStoreGetName (const uint32_t id)
 
void PrefilterInit (DetectEngineCtx *de_ctx)
 
void PrefilterDeinit (DetectEngineCtx *de_ctx)
 
int PrefilterGenericMpmRegister (DetectEngineCtx *de_ctx, SigGroupHead *sgh, MpmCtx *mpm_ctx, const DetectBufferMpmRegistery *mpm_reg, int list_id)
 
int PrefilterGenericMpmPktRegister (DetectEngineCtx *de_ctx, SigGroupHead *sgh, MpmCtx *mpm_ctx, const DetectBufferMpmRegistery *mpm_reg, int list_id)
 

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-prefilter.h.

Typedef Documentation

typedef struct PrefilterStore_ PrefilterStore

Function Documentation

void DetectRunPrefilterTx ( DetectEngineThreadCtx *  det_ctx,
const SigGroupHead *  sgh,
Packet *  p,
const uint8_t  ipproto,
const uint8_t  flow_flags,
const AppProto  alproto,
void *  alstate,
DetectTransaction *  tx 
)

run prefilter engines on a transaction

Definition at line 90 of file detect-engine-prefilter.c.

References PrefilterEngine_::alproto, PrefilterEngine_::cb, Packet_::flow, PrefilterEngine_::gid, PrefilterEngine_::is_last, likely, PrefilterEngine_::local_id, next, PACKET_PROFILING_DETECT_END, PACKET_PROFILING_DETECT_START, PrefilterEngine_::pectx, DetectEngineThreadCtx_::pmq, DetectTransaction_::prefilter_flags, PREFILTER_PROFILING_END, PREFILTER_PROFILING_START, PrefilterEngine_::PrefilterTx, PROF_DETECT_PF_SORT1, PrefilterRuleStore_::rule_id_array, PrefilterRuleStore_::rule_id_array_cnt, SCLogDebug, SigGroupHead_::tx_engines, DetectTransaction_::tx_id, PrefilterEngine_::tx_min_progress, DetectTransaction_::tx_progress, and DetectTransaction_::tx_ptr.

void Prefilter ( DetectEngineThreadCtx *  ,
const SigGroupHead *  ,
Packet *  p,
const uint8_t  flags 
)

Definition at line 139 of file detect-engine-prefilter.c.

References PrefilterEngine_::cb, Packet_::flags, PrefilterEngine_::gid, PrefilterEngine_::is_last, likely, PACKET_PROFILING_DETECT_END, PACKET_PROFILING_DETECT_START, SigGroupHead_::payload_engines, Packet_::payload_len, PrefilterEngine_::pectx, PKT_DETECT_HAS_STREAMDATA, SigGroupHead_::pkt_engines, PKT_NOPAYLOAD_INSPECTION, DetectEngineThreadCtx_::pmq, PrefilterEngine_::Prefilter, PREFILTER_PROFILING_END, PREFILTER_PROFILING_START, PROF_DETECT_PF_PAYLOAD, PROF_DETECT_PF_PKT, PROF_DETECT_PF_SORT1, PrefilterRuleStore_::rule_id_array, PrefilterRuleStore_::rule_id_array_cnt, SCEnter, and SCReturn.

Referenced by SigMatchSignaturesGetSgh().

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int PrefilterAppendEngine ( DetectEngineCtx *  de_ctx,
SigGroupHead *  sgh,
void(*)(DetectEngineThreadCtx *det_ctx, Packet *p, const void *pectx)  Prefilter,
void *  pectx,
void(*)(void *pectx)  FreeFunc,
const char *  name 
)

Definition at line 189 of file detect-engine-prefilter.c.

References CLS, PrefilterEngineList_::Free, PrefilterEngineList_::gid, PrefilterEngineList_::id, SigGroupHead_::init, PrefilterEngineList_::name, PrefilterEngineList_::next, PrefilterEngineList_::pectx, SigGroupHeadInitData_::pkt_engines, PrefilterEngineList_::Prefilter, and SCMallocAligned.

Referenced by PrefilterGenericMpmPktRegister().

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int PrefilterAppendPayloadEngine ( DetectEngineCtx *  de_ctx,
SigGroupHead *  sgh,
void(*)(DetectEngineThreadCtx *det_ctx, Packet *p, const void *pectx)  Prefilter,
void *  pectx,
void(*)(void *pectx)  FreeFunc,
const char *  name 
)

Definition at line 223 of file detect-engine-prefilter.c.

References CLS, PrefilterEngineList_::Free, PrefilterEngineList_::gid, PrefilterEngineList_::id, SigGroupHead_::init, PrefilterEngineList_::name, PrefilterEngineList_::next, SigGroupHeadInitData_::payload_engines, PrefilterEngineList_::pectx, PrefilterEngineList_::Prefilter, and SCMallocAligned.

Referenced by PrefilterPktPayloadRegister(), and PrefilterPktStreamRegister().

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int PrefilterAppendTxEngine ( DetectEngineCtx *  de_ctx,
SigGroupHead *  sgh,
void(*)(DetectEngineThreadCtx *det_ctx, const void *pectx, Packet *p, Flow *f, void *tx, const uint64_t idx, const uint8_t flags)  PrefilterTx,
const AppProto  alproto,
const int  tx_min_progress,
void *  pectx,
void(*)(void *pectx)  FreeFunc,
const char *  name 
)

Definition at line 257 of file detect-engine-prefilter.c.

References PrefilterEngineList_::alproto, CLS, PrefilterEngineList_::Free, PrefilterEngineList_::gid, PrefilterEngineList_::id, SigGroupHead_::init, PrefilterEngineList_::name, PrefilterEngineList_::next, PrefilterEngineList_::pectx, PrefilterEngineList_::PrefilterTx, SCFreeAligned, SCMallocAligned, SigGroupHeadInitData_::tx_engines, and PrefilterEngineList_::tx_min_progress.

Referenced by DetectFilemagicRegister(), DetectTlsCertsRegister(), PrefilterGenericMpmRegister(), and PrefilterMpmFiledataRegister().

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void PrefilterCleanupRuleGroup ( const DetectEngineCtx *  de_ctx,
SigGroupHead *  sgh 
)

Definition at line 332 of file detect-engine-prefilter.c.

References SigGroupHead_::payload_engines, SigGroupHead_::pkt_engines, and SigGroupHead_::tx_engines.

Referenced by SigGroupHeadFree().

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void PrefilterDeinit ( DetectEngineCtx *  de_ctx)

Definition at line 483 of file detect-engine-prefilter.c.

References HashListTableFree(), and DetectEngineCtx_::prefilter_hash_table.

Referenced by InspectionBufferApplyTransforms().

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void PrefilterFreeEnginesList ( PrefilterEngineList *  list)

Definition at line 304 of file detect-engine-prefilter.c.

References PrefilterStore_::FreeFunc, PrefilterEngine_::gid, PrefilterEngine_::is_last, next, PrefilterEngineList_::next, PrefilterEngine_::pectx, and SCFreeAligned.

Referenced by SigGroupHeadInitDataFree().

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int PrefilterGenericMpmPktRegister ( DetectEngineCtx *  de_ctx,
SigGroupHead *  sgh,
MpmCtx *  mpm_ctx,
const DetectBufferMpmRegistery *  mpm_reg,
int  list_id 
)

Definition at line 681 of file detect-engine-prefilter.c.

References PrefilterMpmPktCtx::GetData, PrefilterMpmCtx::list_id, PrefilterMpmPktCtx::list_id, PrefilterMpmCtx::mpm_ctx, PrefilterMpmPktCtx::mpm_ctx, DetectBufferMpmRegistery_::pkt_v1, DetectBufferMpmRegistery_::pname, PrefilterAppendEngine(), SCCalloc, SCEnter, SCFree, DetectBufferMpmRegistery_::transforms, and PrefilterMpmPktCtx::transforms.

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int PrefilterGenericMpmRegister ( DetectEngineCtx *  de_ctx,
SigGroupHead *  sgh,
MpmCtx *  mpm_ctx,
const DetectBufferMpmRegistery *  mpm_reg,
int  list_id 
)

Definition at line 611 of file detect-engine-prefilter.c.

References DetectBufferMpmRegistery_::app_v2, PrefilterMpmCtx::GetData, PrefilterMpmCtx::list_id, PrefilterMpmCtx::mpm_ctx, DetectBufferMpmRegistery_::pname, PrefilterAppendTxEngine(), SCCalloc, SCEnter, SCFree, PrefilterMpmCtx::transforms, and DetectBufferMpmRegistery_::transforms.

Referenced by DetectAppLayerMpmRegister2(), DetectDceStubDataRegister(), DetectFiledataRegister(), DetectHttpClientBodyRegister(), DetectHttpCookieRegister(), DetectHttpHHRegister(), DetectHttpMethodRegister(), DetectHttpProtocolRegister(), DetectHttpRequestLineRegister(), DetectHttpResponseLineRegister(), DetectHttpStatCodeRegister(), DetectHttpStatMsgRegister(), DetectHttpUARegister(), DetectHttpUriRegister(), DetectSmbNamedPipeRegister(), DetectSmbShareRegister(), DetectSNMPCommunityRegister(), DetectSshProtocolRegister(), DetectSshSoftwareRegister(), DetectTemplateBufferRegister(), DetectTlsFingerprintRegister(), DetectTlsIssuerRegister(), DetectTlsJa3HashRegister(), DetectTlsJa3SHashRegister(), DetectTlsJa3SStringRegister(), DetectTlsJa3StringRegister(), DetectTlsSerialRegister(), DetectTlsSniRegister(), and DetectTlsSubjectRegister().

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void PrefilterInit ( DetectEngineCtx *  de_ctx)

Definition at line 490 of file detect-engine-prefilter.c.

References BUG_ON, PrefilterStore_::FreeFunc, HashListTableAdd(), HashListTableGetListData, HashListTableGetListHead(), HashListTableGetListNext, HashListTableInit(), HashListTableLookup(), PrefilterStore_::id, PrefilterStore_::name, DetectEngineCtx_::prefilter_hash_table, DetectEngineCtx_::prefilter_id, SCCalloc, SCFree, and SCLogDebug.

Referenced by InspectionBufferApplyTransforms().

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void PrefilterSetupRuleGroup ( DetectEngineCtx *  de_ctx,
SigGroupHead *  sgh 
)

Definition at line 348 of file detect-engine-prefilter.c.

References PrefilterEngineList_::alproto, PrefilterEngine_::alproto, HashListTable_::array_size, PrefilterEngine_::cb, CLS, DETECT_PREFILTER_AUTO, DETECT_TBLSIZE, FatalError, PrefilterEngineList_::gid, PrefilterEngine_::gid, PrefilterEngineList_::id, SigGroupHead_::init, PrefilterEngine_::is_last, PrefilterEngine_::local_id, MAX, PrefilterStore_::name, PrefilterEngineList_::next, PatternMatchPrepareGroup(), SigGroupHeadInitData_::payload_engines, SigGroupHead_::payload_engines, PrefilterEngineList_::pectx, PrefilterEngine_::pectx, SigGroupHeadInitData_::pkt_engines, SigGroupHead_::pkt_engines, PrefilterEngineList_::Prefilter, PrefilterEngine_::Prefilter, DetectEngineCtx_::prefilter_maxid, DetectEngineCtx_::prefilter_setting, PrefilterEngineList_::PrefilterTx, PrefilterEngine_::PrefilterTx, SC_ERR_INITIALIZATION, SCFree, SCLogDebug, SCMallocAligned, SigTableElmt_::SetupPrefilter, sigmatch_table, DetectEngineCtx_::sm_types_prefilter, TRUE, SigGroupHeadInitData_::tx_engines, SigGroupHead_::tx_engines, PrefilterEngineList_::tx_min_progress, and PrefilterEngine_::tx_min_progress.

Referenced by SigAddressPrepareStage4().

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const char* PrefilterStoreGetName ( const uint32_t  id)

Definition at line 555 of file detect-engine-prefilter.c.