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149 lines
3.7 KiB
C
149 lines
3.7 KiB
C
/* Copyright (C) 2007-2014 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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* \author Victor Julien <victor@inliniac.net>
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* \author Anoop Saldanha <anoopsaldanha@gmail.com>
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*/
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#ifndef __APP_LAYER_H__
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#define __APP_LAYER_H__
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#include "threadvars.h"
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#include "decode.h"
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#include "flow.h"
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#include "stream-tcp-private.h"
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#include "stream-tcp-reassemble.h"
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#include "stream.h"
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#include "util-profiling.h"
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#define APP_LAYER_DATA_ALREADY_SENT_TO_APP_LAYER \
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(~STREAM_TOSERVER & ~STREAM_TOCLIENT)
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/***** L7 layer dispatchers *****/
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/**
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* \brief Handles reassembled tcp stream.
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*/
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int AppLayerHandleTCPData(ThreadVars *tv, TcpReassemblyThreadCtx *ra_ctx,
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Packet *p, Flow *f,
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TcpSession *ssn, TcpStream **stream,
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uint8_t *data, uint32_t data_len,
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uint8_t flags);
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/**
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* \brief Handles an udp chunk.
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*/
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int AppLayerHandleUdp(ThreadVars *tv, AppLayerThreadCtx *app_tctx,
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Packet *p, Flow *f);
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/***** Utility *****/
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/**
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* \brief Given a protocol string, returns the corresponding internal
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* protocol id.
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*
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* \param The internal protocol id.
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*/
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AppProto AppLayerGetProtoByName(char *alproto_name);
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/**
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* \brief Given the internal protocol id, returns a string representation
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* of the protocol.
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*
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* \param alproto The internal protocol id.
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*
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* \retval String representation of the protocol.
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*/
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const char *AppLayerGetProtoName(AppProto alproto);
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void AppLayerListSupportedProtocols(void);
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/***** Setup/General Registration *****/
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/**
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* \brief Setup the app layer.
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*
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* Includes protocol detection setup and the protocol parser setup.
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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 AppLayerSetup(void);
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/**
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* \brief De initializes the app layer.
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*
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* Includes de initializing protocol detection and the protocol parser.
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*/
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int AppLayerDeSetup(void);
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/**
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* \brief Creates a new app layer thread context.
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*
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* \retval Pointer to the newly create thread context, on success;
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* NULL, on failure.
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*/
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AppLayerThreadCtx *AppLayerGetCtxThread(ThreadVars *tv);
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/**
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* \brief Destroys the context created by AppLayeGetCtxThread().
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*
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* \param tctx Pointer to the thread context to destroy.
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*/
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void AppLayerDestroyCtxThread(AppLayerThreadCtx *tctx);
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/**
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* \brief Registers per flow counters for all protocols
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*
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*/
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void AppLayerRegisterThreadCounters(ThreadVars *tv);
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/***** Profiling *****/
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void AppLayerProfilingResetInternal(AppLayerThreadCtx *app_tctx);
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static inline void AppLayerProfilingReset(AppLayerThreadCtx *app_tctx)
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{
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#ifdef PROFILING
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AppLayerProfilingResetInternal(app_tctx);
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#endif
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}
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void AppLayerProfilingStoreInternal(AppLayerThreadCtx *app_tctx, Packet *p);
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static inline void AppLayerProfilingStore(AppLayerThreadCtx *app_tctx, Packet *p)
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{
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#ifdef PROFILING
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AppLayerProfilingStoreInternal(app_tctx, p);
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#endif
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}
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void AppLayerRegisterGlobalCounters(void);
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/***** Unittests *****/
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#ifdef UNITTESTS
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void AppLayerUnittestsRegister(void);
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#endif
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void AppLayerIncTxCounter(ThreadVars *tv, Flow *f, uint64_t step);
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#endif
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