suricata
util-mpm.c File Reference
#include "suricata-common.h"
#include "util-mpm.h"
#include "util-debug.h"
#include "util-mpm-ac.h"
#include "util-mpm-ac-bs.h"
#include "util-mpm-ac-ks.h"
#include "util-mpm-hs.h"
#include "util-hashlist.h"
#include "detect-engine.h"
#include "util-misc.h"
#include "conf.h"
#include "conf-yaml-loader.h"
#include "queue.h"
#include "util-unittest.h"
#include "util-memcpy.h"
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Macros

#define DEFAULT_MPM   MPM_AC
 

Functions

int32_t MpmFactoryRegisterMpmCtxProfile (DetectEngineCtx *de_ctx, const char *name, const int sm_list)
 Register a new Mpm Context. More...
 
int32_t MpmFactoryIsMpmCtxAvailable (const DetectEngineCtx *de_ctx, const MpmCtx *mpm_ctx)
 
MpmCtxMpmFactoryGetMpmCtxForProfile (const DetectEngineCtx *de_ctx, int32_t id, int direction)
 
void MpmFactoryReClaimMpmCtx (const DetectEngineCtx *de_ctx, MpmCtx *mpm_ctx)
 
void MpmFactoryDeRegisterAllMpmCtxProfiles (DetectEngineCtx *de_ctx)
 
void MpmInitThreadCtx (MpmThreadCtx *mpm_thread_ctx, uint16_t matcher)
 
void MpmInitCtx (MpmCtx *mpm_ctx, uint16_t matcher)
 
void MpmTableSetup (void)
 
int MpmAddPatternCS (struct MpmCtx_ *mpm_ctx, uint8_t *pat, uint16_t patlen, uint16_t offset, uint16_t depth, uint32_t pid, SigIntId sid, uint8_t flags)
 
int MpmAddPatternCI (struct MpmCtx_ *mpm_ctx, uint8_t *pat, uint16_t patlen, uint16_t offset, uint16_t depth, uint32_t pid, SigIntId sid, uint8_t flags)
 
void MpmFreePattern (MpmCtx *mpm_ctx, MpmPattern *p)
 
int MpmAddPattern (MpmCtx *mpm_ctx, uint8_t *pat, uint16_t patlen, uint16_t offset, uint16_t depth, uint32_t pid, SigIntId sid, uint8_t flags)
 
void MpmRegisterTests (void)
 

Variables

MpmTableElmt mpm_table [MPM_TABLE_SIZE]
 
int mpm_default_matcher
 

Detailed Description

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

Pattern matcher utility Functions

Definition in file util-mpm.c.

Macro Definition Documentation

◆ DEFAULT_MPM

#define DEFAULT_MPM   MPM_AC

Definition at line 213 of file util-mpm.c.

Function Documentation

◆ MpmAddPattern()

int MpmAddPattern ( MpmCtx mpm_ctx,
uint8_t *  pat,
uint16_t  patlen,
uint16_t  offset,
uint16_t  depth,
uint32_t  pid,
SigIntId  sid,
uint8_t  flags 
)

◆ MpmAddPatternCI()

int MpmAddPatternCI ( struct MpmCtx_ mpm_ctx,
uint8_t *  pat,
uint16_t  patlen,
uint16_t  offset,
uint16_t  depth,
uint32_t  pid,
SigIntId  sid,
uint8_t  flags 
)

Definition at line 250 of file util-mpm.c.

References MpmTableElmt_::AddPatternNocase, flags, mpm_table, MpmCtx_::mpm_type, and offset.

◆ MpmAddPatternCS()

int MpmAddPatternCS ( struct MpmCtx_ mpm_ctx,
uint8_t *  pat,
uint16_t  patlen,
uint16_t  offset,
uint16_t  depth,
uint32_t  pid,
SigIntId  sid,
uint8_t  flags 
)

Definition at line 241 of file util-mpm.c.

References MpmTableElmt_::AddPattern, flags, mpm_table, MpmCtx_::mpm_type, and offset.

◆ MpmFactoryDeRegisterAllMpmCtxProfiles()

void MpmFactoryDeRegisterAllMpmCtxProfiles ( DetectEngineCtx de_ctx)

◆ MpmFactoryGetMpmCtxForProfile()

◆ MpmFactoryIsMpmCtxAvailable()

int32_t MpmFactoryIsMpmCtxAvailable ( const DetectEngineCtx de_ctx,
const MpmCtx mpm_ctx 
)

Definition at line 113 of file util-mpm.c.

References de_ctx, MpmCtxFactoryContainer_::items, DetectEngineCtx_::mpm_ctx_factory_container, and MpmCtxFactoryItem::next.

Referenced by MpmFactoryReClaimMpmCtx().

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◆ MpmFactoryReClaimMpmCtx()

void MpmFactoryReClaimMpmCtx ( const DetectEngineCtx de_ctx,
MpmCtx mpm_ctx 
)

Definition at line 156 of file util-mpm.c.

References de_ctx, MpmTableElmt_::DestroyCtx, MPM_NOTSET, mpm_table, MpmCtx_::mpm_type, MpmFactoryIsMpmCtxAvailable(), and SCFree.

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◆ MpmFactoryRegisterMpmCtxProfile()

int32_t MpmFactoryRegisterMpmCtxProfile ( DetectEngineCtx de_ctx,
const char *  name,
const int  sm_list 
)

Register a new Mpm Context.

Parameters
nameA new profile to be registered to store this MpmCtx.
sm_listsm_list for this name (might be variable with xforms)
Return values
idReturn the id created for the new MpmCtx profile.

Definition at line 59 of file util-mpm.c.

References de_ctx, ENGINE_SGH_MPM_FACTORY_CONTEXT_START_ID_RANGE, FatalError, MpmCtx_::flags, MpmCtxFactoryItem::id, MpmCtxFactoryContainer_::items, MpmCtxFactoryContainer_::max_id, DetectEngineCtx_::mpm_ctx_factory_container, MpmCtxFactoryItem::mpm_ctx_tc, MpmCtxFactoryItem::mpm_ctx_ts, MPMCTX_FLAGS_GLOBAL, MpmCtxFactoryItem::name, MpmCtxFactoryItem::next, MpmCtxFactoryContainer_::no_of_items, SC_ERR_FATAL, SCCalloc, MpmCtxFactoryItem::sm_list, and unlikely.

Referenced by DetectAppLayerMpmRegisterByParentId().

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◆ MpmFreePattern()

void MpmFreePattern ( MpmCtx mpm_ctx,
MpmPattern p 
)

Definition at line 349 of file util-mpm.c.

References MpmPattern_::ci, MpmPattern_::cs, MpmPattern_::len, MpmCtx_::memory_cnt, MpmCtx_::memory_size, MpmPattern_::original_pat, and SCFree.

Referenced by SCACBSDestroyCtx(), and SCACDestroyCtx().

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◆ MpmInitCtx()

void MpmInitCtx ( MpmCtx mpm_ctx,
uint16_t  matcher 
)

Definition at line 200 of file util-mpm.c.

References MpmTableElmt_::InitCtx, mpm_table, and MpmCtx_::mpm_type.

◆ MpmInitThreadCtx()

void MpmInitThreadCtx ( MpmThreadCtx mpm_thread_ctx,
uint16_t  matcher 
)

Definition at line 195 of file util-mpm.c.

References MpmTableElmt_::InitThreadCtx, and mpm_table.

Referenced by PatternMatchThreadPrepare().

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◆ MpmRegisterTests()

void MpmRegisterTests ( void  )

Definition at line 563 of file util-mpm.c.

References g_ut_modules, MPM_NOTSET, mpm_table, and MPM_TABLE_SIZE.

◆ MpmTableSetup()

void MpmTableSetup ( void  )

Definition at line 215 of file util-mpm.c.

References DEFAULT_MPM, mpm_default_matcher, mpm_table, MpmACBSRegister(), MpmACRegister(), MpmACTileRegister(), MpmHSRegister(), and SCLogInfo.

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

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Variable Documentation

◆ mpm_default_matcher

int mpm_default_matcher

Definition at line 49 of file util-mpm.c.

Referenced by MpmTableSetup(), and PatternMatchDefaultMatcher().

◆ mpm_table