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suricata/src/detect-engine-mpm.h

98 lines
3.2 KiB
C

/* Copyright (C) 2007-2010 Open Information Security Foundation
*
* You can copy, redistribute or modify this Program under the terms of
* the GNU General Public License version 2 as published by the Free
* Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
/**
* \file
*
* \author Victor Julien <victor@inliniac.net>
*/
#ifndef __DETECT_ENGINE_MPM_H__
#define __DETECT_ENGINE_MPM_H__
#include "tm-threads.h"
#include "detect.h"
#include "detect-content.h"
#include "detect-uricontent.h"
#include "stream.h"
void DetectMpmInitializeAppMpms(DetectEngineCtx *de_ctx);
void DetectMpmPrepareAppMpms(DetectEngineCtx *de_ctx);
void DetectMpmInitializeBuiltinMpms(DetectEngineCtx *de_ctx);
void DetectMpmPrepareBuiltinMpms(DetectEngineCtx *de_ctx);
uint32_t PatternStrength(uint8_t *, uint16_t);
uint16_t PatternMatchDefaultMatcher(void);
uint32_t DnsQueryPatternSearch(DetectEngineThreadCtx *det_ctx, uint8_t *buffer, uint32_t buffer_len, uint8_t flags);
void PacketPatternCleanup(ThreadVars *, DetectEngineThreadCtx *);
void PatternMatchPrepare(MpmCtx *, uint16_t);
void PatternMatchThreadPrepare(MpmThreadCtx *, uint16_t type);
void PatternMatchDestroy(MpmCtx *, uint16_t);
void PatternMatchThreadDestroy(MpmThreadCtx *mpm_thread_ctx, uint16_t);
void PatternMatchThreadPrint(MpmThreadCtx *, uint16_t);
int PatternMatchPrepareGroup(DetectEngineCtx *, SigGroupHead *);
void DetectEngineThreadCtxInfo(ThreadVars *, DetectEngineThreadCtx *);
TmEcode DetectEngineThreadCtxInit(ThreadVars *, void *, void **);
TmEcode DetectEngineThreadCtxDeinit(ThreadVars *, void *);
void DbgPrintSearchStats();
int SignatureHasPacketContent(const Signature *);
int SignatureHasStreamContent(const Signature *);
void RetrieveFPForSig(Signature *s);
int MpmStoreInit(DetectEngineCtx *);
void MpmStoreFree(DetectEngineCtx *);
void MpmStoreReportStats(const DetectEngineCtx *de_ctx);
MpmStore *MpmStorePrepareBuffer(DetectEngineCtx *de_ctx, SigGroupHead *sgh, enum MpmBuiltinBuffers buf);
/**
* \brief Figured out the FP and their respective content ids for all the
* sigs in the engine.
*
* \param de_ctx Detection engine context.
*
* \retval 0 On success.
* \retval -1 On failure.
*/
int DetectSetFastPatternAndItsId(DetectEngineCtx *de_ctx);
/** \brief register an app layer keyword for mpm
* \param name keyword name
* \param direction SIG_FLAG_TOSERVER or SIG_FLAG_TOCLIENT
* \param sm_list list that contains the keyword's sigmatches
* \param PrefilterRegister Prefilter api registration function
*
* \note direction must be set to either toserver or toclient.
* If both are needed, register the keyword twice.
*/
void DetectMpmAppLayerRegister(const char *name,
int direction, int sm_list, int priority,
int (*PrefilterRegister)(SigGroupHead *sgh, MpmCtx *mpm_ctx));
#endif /* __DETECT_ENGINE_MPM_H__ */