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 | |