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96 lines
3.5 KiB
C
96 lines
3.5 KiB
C
/* Copyright (C) 2016 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_PREFILTER_H__
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#define __DETECT_ENGINE_PREFILTER_H__
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#include "detect.h"
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#include "detect-engine-state.h"
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// TODO
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typedef struct DetectTransaction_ {
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void *tx_ptr;
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const uint64_t tx_id;
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struct AppLayerTxData *tx_data_ptr;
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DetectEngineStateDirection *de_state;
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const uint64_t detect_flags; /* detect flags get/set from/to applayer */
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uint64_t prefilter_flags; /* prefilter flags for direction, to be updated by prefilter code */
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const uint64_t
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prefilter_flags_orig; /* prefilter flags for direction, before prefilter has run */
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const int tx_progress;
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const int tx_end_state;
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} DetectTransaction;
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typedef struct PrefilterStore_ {
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const char *name;
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void (*FreeFunc)(void *);
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uint32_t id;
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} PrefilterStore;
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void Prefilter(DetectEngineThreadCtx *, const SigGroupHead *, Packet *p,
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const uint8_t flags);
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int PrefilterAppendEngine(DetectEngineCtx *de_ctx, SigGroupHead *sgh,
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void (*Prefilter)(DetectEngineThreadCtx *det_ctx, Packet *p, const void *pectx),
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void *pectx, void (*FreeFunc)(void *pectx),
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const char *name);
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int PrefilterAppendPayloadEngine(DetectEngineCtx *de_ctx, SigGroupHead *sgh,
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void (*Prefilter)(DetectEngineThreadCtx *det_ctx, Packet *p, const void *pectx),
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void *pectx, void (*FreeFunc)(void *pectx),
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const char *name);
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int PrefilterAppendTxEngine(DetectEngineCtx *de_ctx, SigGroupHead *sgh,
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PrefilterTxFn PrefilterTxFunc, const AppProto alproto, const int tx_min_progress,
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void *pectx, void (*FreeFunc)(void *pectx), const char *name);
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int PrefilterAppendFrameEngine(DetectEngineCtx *de_ctx, SigGroupHead *sgh,
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PrefilterFrameFn PrefilterFrameFunc, AppProto alproto, uint8_t frame_type, void *pectx,
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void (*FreeFunc)(void *pectx), const char *name);
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void DetectRunPrefilterTx(DetectEngineThreadCtx *det_ctx,
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const SigGroupHead *sgh,
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Packet *p,
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const uint8_t ipproto,
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const uint8_t flow_flags,
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const AppProto alproto,
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void *alstate,
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DetectTransaction *tx);
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void PrefilterFreeEnginesList(PrefilterEngineList *list);
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void PrefilterSetupRuleGroup(DetectEngineCtx *de_ctx, SigGroupHead *sgh);
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void PrefilterCleanupRuleGroup(const DetectEngineCtx *de_ctx, SigGroupHead *sgh);
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#ifdef PROFILING
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const char *PrefilterStoreGetName(const uint32_t id);
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#endif
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void PrefilterInit(DetectEngineCtx *de_ctx);
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void PrefilterDeinit(DetectEngineCtx *de_ctx);
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int PrefilterGenericMpmRegister(DetectEngineCtx *de_ctx, SigGroupHead *sgh, MpmCtx *mpm_ctx,
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const DetectBufferMpmRegistry *mpm_reg, int list_id);
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int PrefilterGenericMpmPktRegister(DetectEngineCtx *de_ctx, SigGroupHead *sgh, MpmCtx *mpm_ctx,
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const DetectBufferMpmRegistry *mpm_reg, int list_id);
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#endif
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