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70 lines
2.5 KiB
C
70 lines
2.5 KiB
C
/*
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* Copyright (c) 2015, Intel Corporation
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Intel Corporation nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/** \file
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* \brief Stream state data structures.
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*/
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#ifndef STATE_H
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#define STATE_H
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#include "hs_runtime.h" /* match_event_handler */
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#include "ue2common.h"
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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struct RoseEngine;
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/** \brief Stream context: allocated for each stream.
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*
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* struct hs_stream is followed in memory by the main Rose state: history,
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* exhaustion, individual states, etc. The RoseEngine has the offsets required
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* to correctly index into the main state structure. The offsets used by the
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* RoseEngine are based on the end of the hs_stream struct as its size may
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* vary from platform to platform.
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*/
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struct hs_stream {
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/** \brief The RoseEngine that this stream is matching against. */
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const struct RoseEngine *rose;
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/** \brief The current stream offset. */
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u64a offset;
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};
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#define getMultiState(hs_s) ((char *)(hs_s) + sizeof(*(hs_s)))
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#define getMultiStateConst(hs_s) ((const char *)(hs_s) + sizeof(*(hs_s)))
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#ifdef __cplusplus
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}
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#endif
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#endif
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