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125 lines
4.4 KiB
C
125 lines
4.4 KiB
C
/* Copyright (C) 2007-2010 Open Information Security Foundation
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*
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* You can copy, redistribute or modify this Program under the terms of
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* the GNU General Public License version 2 as published by the Free
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* Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* version 2 along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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/**
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* \file
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*
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* \author Victor Julien <victor@inliniac.net>
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*/
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#ifndef __DETECT_ENGINE_MPM_H__
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#define __DETECT_ENGINE_MPM_H__
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#include "tm-threads.h"
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#include "detect.h"
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#include "detect-content.h"
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#include "detect-uricontent.h"
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#include "stream.h"
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void DetectMpmInitializePktMpms(DetectEngineCtx *de_ctx);
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int DetectMpmPreparePktMpms(DetectEngineCtx *de_ctx);
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void DetectMpmInitializeAppMpms(DetectEngineCtx *de_ctx);
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int DetectMpmPrepareAppMpms(DetectEngineCtx *de_ctx);
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void DetectMpmInitializeBuiltinMpms(DetectEngineCtx *de_ctx);
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int DetectMpmPrepareBuiltinMpms(DetectEngineCtx *de_ctx);
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uint32_t PatternStrength(uint8_t *, uint16_t);
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uint16_t PatternMatchDefaultMatcher(void);
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uint32_t DnsQueryPatternSearch(DetectEngineThreadCtx *det_ctx, uint8_t *buffer, uint32_t buffer_len, uint8_t flags);
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void PacketPatternCleanup(DetectEngineThreadCtx *);
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void PatternMatchPrepare(MpmCtx *, uint16_t);
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void PatternMatchThreadPrepare(MpmThreadCtx *, uint16_t type);
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void PatternMatchDestroy(MpmCtx *, uint16_t);
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void PatternMatchThreadDestroy(MpmThreadCtx *mpm_thread_ctx, uint16_t);
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void PatternMatchThreadPrint(MpmThreadCtx *, uint16_t);
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int PatternMatchPrepareGroup(DetectEngineCtx *, SigGroupHead *);
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void DetectEngineThreadCtxInfo(ThreadVars *, DetectEngineThreadCtx *);
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TmEcode DetectEngineThreadCtxInit(ThreadVars *, void *, void **);
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TmEcode DetectEngineThreadCtxDeinit(ThreadVars *, void *);
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int SignatureHasPacketContent(const Signature *);
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int SignatureHasStreamContent(const Signature *);
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void RetrieveFPForSig(const DetectEngineCtx *de_ctx, Signature *s);
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int MpmStoreInit(DetectEngineCtx *);
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void MpmStoreFree(DetectEngineCtx *);
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void MpmStoreReportStats(const DetectEngineCtx *de_ctx);
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MpmStore *MpmStorePrepareBuffer(DetectEngineCtx *de_ctx, SigGroupHead *sgh, enum MpmBuiltinBuffers buf);
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/**
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* \brief Figured out the FP and their respective content ids for all the
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* sigs in the engine.
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*
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* \param de_ctx Detection engine context.
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*
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* \retval 0 On success.
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* \retval -1 On failure.
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*/
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int DetectSetFastPatternAndItsId(DetectEngineCtx *de_ctx);
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/** \brief register an app layer keyword for mpm
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* \param name buffer name
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* \param direction SIG_FLAG_TOSERVER or SIG_FLAG_TOCLIENT
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* \param priority mpm keyword priority
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* \param PrefilterRegister Prefilter api registration function
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* \param GetData callback to setup a InspectBuffer. May be NULL.
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* \param alproto AppProto this MPM engine inspects
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* \param tx_min_progress min tx progress needed to invoke this engine.
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*
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* \note direction must be set to either toserver or toclient.
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* If both are needed, register the keyword twice.
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*/
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void DetectAppLayerMpmRegister2(const char *name,
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int direction, int priority,
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int (*PrefilterRegister)(DetectEngineCtx *de_ctx,
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SigGroupHead *sgh, MpmCtx *mpm_ctx,
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const DetectBufferMpmRegistery *mpm_reg, int list_id),
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InspectionBufferGetDataPtr GetData,
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AppProto alproto, int tx_min_progress);
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void DetectAppLayerMpmRegisterByParentId(
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DetectEngineCtx *de_ctx,
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const int id, const int parent_id,
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DetectEngineTransforms *transforms);
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void DetectPktMpmRegister(const char *name,
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int priority,
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int (*PrefilterRegister)(DetectEngineCtx *de_ctx,
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SigGroupHead *sgh, MpmCtx *mpm_ctx,
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const DetectBufferMpmRegistery *mpm_reg, int list_id),
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InspectionBufferGetPktDataPtr GetData);
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void DetectPktMpmRegisterByParentId(DetectEngineCtx *de_ctx,
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const int id, const int parent_id,
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DetectEngineTransforms *transforms);
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int PrefilterGenericMpmPktRegister(DetectEngineCtx *de_ctx,
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SigGroupHead *sgh, MpmCtx *mpm_ctx,
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const DetectBufferMpmRegistery *mpm_reg, int list_id);
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#endif /* __DETECT_ENGINE_MPM_H__ */
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