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/* 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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Add per packet profiling.
Per packet profiling uses tick based accounting. It has 2 outputs, a summary
and a csv file that contains per packet stats.
Stats per packet include:
1) total ticks spent
2) ticks spent per individual thread module
3) "threading overhead" which is simply calculated by subtracting (2) of (1).
A number of changes were made to integrate the new code in a clean way:
a number of generic enums are now placed in tm-threads-common.h so we can
include them from any part of the engine.
Code depends on --enable-profiling just like the rule profiling code.
New yaml parameters:
profiling:
# packet profiling
packets:
# Profiling can be disabled here, but it will still have a
# performance impact if compiled in.
enabled: yes
filename: packet_stats.log
append: yes
# per packet csv output
csv:
# Output can be disabled here, but it will still have a
# performance impact if compiled in.
enabled: no
filename: packet_stats.csv
Example output of summary stats:
IP ver Proto cnt min max avg
------ ----- ------ ------ ---------- -------
IPv4 6 19436 11448 5404365 32993
IPv4 256 4 11511 49968 30575
Per Thread module stats:
Thread Module IP ver Proto cnt min max avg
------------------------ ------ ----- ------ ------ ---------- -------
TMM_DECODEPCAPFILE IPv4 6 19434 1242 47889 1770
TMM_DETECT IPv4 6 19436 1107 137241 1504
TMM_ALERTFASTLOG IPv4 6 19436 90 1323 155
TMM_ALERTUNIFIED2ALERT IPv4 6 19436 108 1359 138
TMM_ALERTDEBUGLOG IPv4 6 19436 90 1134 154
TMM_LOGHTTPLOG IPv4 6 19436 414 5392089 7944
TMM_STREAMTCP IPv4 6 19434 828 1299159 19438
The proto 256 is a counter for handling of pseudo/tunnel packets.
Example output of csv:
pcap_cnt,ipver,ipproto,total,TMM_DECODENFQ,TMM_VERDICTNFQ,TMM_RECEIVENFQ,TMM_RECEIVEPCAP,TMM_RECEIVEPCAPFILE,TMM_DECODEPCAP,TMM_DECODEPCAPFILE,TMM_RECEIVEPFRING,TMM_DECODEPFRING,TMM_DETECT,TMM_ALERTFASTLOG,TMM_ALERTFASTLOG4,TMM_ALERTFASTLOG6,TMM_ALERTUNIFIEDLOG,TMM_ALERTUNIFIEDALERT,TMM_ALERTUNIFIED2ALERT,TMM_ALERTPRELUDE,TMM_ALERTDEBUGLOG,TMM_ALERTSYSLOG,TMM_LOGDROPLOG,TMM_ALERTSYSLOG4,TMM_ALERTSYSLOG6,TMM_RESPONDREJECT,TMM_LOGHTTPLOG,TMM_LOGHTTPLOG4,TMM_LOGHTTPLOG6,TMM_PCAPLOG,TMM_STREAMTCP,TMM_DECODEIPFW,TMM_VERDICTIPFW,TMM_RECEIVEIPFW,TMM_RECEIVEERFFILE,TMM_DECODEERFFILE,TMM_RECEIVEERFDAG,TMM_DECODEERFDAG,threading
1,4,6,172008,0,0,0,0,0,0,47889,0,0,48582,1323,0,0,0,0,1359,0,1134,0,0,0,0,0,8028,0,0,0,49356,0,0,0,0,0,0,0,14337
First line of the file contains labels.
2 example gnuplot scripts added to plot the data.
14 years ago
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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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