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/*
* Copyright (c) 2016, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Intel Corporation nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/**
* \file
* \brief SOM runtime: data structures.
*
* Data structures used for SOM operations.
*/
#ifndef SOM_OPERATION_H
#define SOM_OPERATION_H
#include "ue2common.h"
#define SOM_EXTERNAL_CALLBACK_REL 1
#define SOM_INTERNAL_LOC_SET 2
#define SOM_INTERNAL_LOC_SET_IF_UNSET 3
#define SOM_INTERNAL_LOC_SET_IF_WRITABLE 4
#define SOM_INTERNAL_LOC_SET_REV_NFA 5
#define SOM_INTERNAL_LOC_SET_REV_NFA_IF_UNSET 6
#define SOM_INTERNAL_LOC_SET_REV_NFA_IF_WRITABLE 7
#define SOM_INTERNAL_LOC_COPY 8
#define SOM_INTERNAL_LOC_COPY_IF_WRITABLE 9
#define SOM_INTERNAL_LOC_MAKE_WRITABLE 10
#define SOM_EXTERNAL_CALLBACK_STORED 11
#define SOM_EXTERNAL_CALLBACK_ABS 12
#define SOM_EXTERNAL_CALLBACK_REV_NFA 13
#define SOM_INTERNAL_LOC_SET_FROM 14
#define SOM_INTERNAL_LOC_SET_FROM_IF_WRITABLE 15
struct som_operation {
/** \brief Report type, from the definitions above. */
u8 type;
/* \brief SOM loc to modify. */
u32 onmatch;
union {
/** \brief SOM distance value, use varies according to type.
*
* - for SOM_EXTERNAL_CALLBACK_REL, from-offset is this many bytes
* before the to-offset.
* - for SOM_EXTERNAL_CALLBACK_ABS, set from-offset to this value.
* - for SOM_INTERNAL_LOC_COPY*, som location read_from.
*/
u64a somDistance;
/** \brief Index of the reverse nfa.
*
* Used by SOM_EXTERNAL_CALLBACK_REV_NFA and
* SOM_INTERNAL_LOC_SET_REV_NFA*.
*/
u64a revNfaIndex;
} aux;
};
#endif // SOM_OPERATION_H
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