1 /* 2 * Copyright (c) 2016, Intel Corporation 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * * Redistributions of source code must retain the above copyright notice, 8 * this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * * Neither the name of Intel Corporation nor the names of its contributors 13 * may be used to endorse or promote products derived from this software 14 * without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /** 30 * \file 31 * \brief SOM runtime: data structures. 32 * 33 * Data structures used for SOM operations. 34 */ 35 36 #ifndef SOM_OPERATION_H 37 #define SOM_OPERATION_H 38 39 #include "ue2common.h" 40 41 #define SOM_EXTERNAL_CALLBACK_REL 1 42 #define SOM_INTERNAL_LOC_SET 2 43 #define SOM_INTERNAL_LOC_SET_IF_UNSET 3 44 #define SOM_INTERNAL_LOC_SET_IF_WRITABLE 4 45 #define SOM_INTERNAL_LOC_SET_REV_NFA 5 46 #define SOM_INTERNAL_LOC_SET_REV_NFA_IF_UNSET 6 47 #define SOM_INTERNAL_LOC_SET_REV_NFA_IF_WRITABLE 7 48 #define SOM_INTERNAL_LOC_COPY 8 49 #define SOM_INTERNAL_LOC_COPY_IF_WRITABLE 9 50 #define SOM_INTERNAL_LOC_MAKE_WRITABLE 10 51 #define SOM_EXTERNAL_CALLBACK_STORED 11 52 #define SOM_EXTERNAL_CALLBACK_ABS 12 53 #define SOM_EXTERNAL_CALLBACK_REV_NFA 13 54 #define SOM_INTERNAL_LOC_SET_FROM 14 55 #define SOM_INTERNAL_LOC_SET_FROM_IF_WRITABLE 15 56 57 struct som_operation { 58 /** \brief Report type, from the definitions above. */ 59 u8 type; 60 61 /* \brief SOM loc to modify. */ 62 u32 onmatch; 63 64 union { 65 /** \brief SOM distance value, use varies according to type. 66 * 67 * - for SOM_EXTERNAL_CALLBACK_REL, from-offset is this many bytes 68 * before the to-offset. 69 * - for SOM_EXTERNAL_CALLBACK_ABS, set from-offset to this value. 70 * - for SOM_INTERNAL_LOC_COPY*, som location read_from. 71 */ 72 u64a somDistance; 73 74 /** \brief Index of the reverse nfa. 75 * 76 * Used by SOM_EXTERNAL_CALLBACK_REV_NFA and 77 * SOM_INTERNAL_LOC_SET_REV_NFA*. 78 */ 79 u64a revNfaIndex; 80 } aux; 81 }; 82 83 #endif // SOM_OPERATION_H 84 85