1 | /* |
2 | * Copyright (c) 2015, 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 | /** \file |
30 | * \brief Hamster Wheel Literal Matcher: data structures. |
31 | */ |
32 | |
33 | #ifndef HWLM_INTERNAL_H |
34 | #define HWLM_INTERNAL_H |
35 | |
36 | #include "hwlm.h" |
37 | #include "ue2common.h" |
38 | #include "nfa/accel.h" |
39 | |
40 | /** \brief Underlying engine is FDR. */ |
41 | #define HWLM_ENGINE_FDR 12 |
42 | |
43 | /** \brief Underlying engine is Noodle. */ |
44 | #define HWLM_ENGINE_NOOD 16 |
45 | |
46 | /** \brief Main Hamster Wheel Literal Matcher header. Followed by |
47 | * engine-specific structure. */ |
48 | struct HWLM { |
49 | u8 type; /**< HWLM_ENGINE_NOOD or HWLM_ENGINE_FDR */ |
50 | hwlm_group_t accel1_groups; /**< accelerable groups. */ |
51 | union AccelAux accel1; /**< used if group mask is subset of accel1_groups */ |
52 | union AccelAux accel0; /**< fallback accel scheme */ |
53 | }; |
54 | |
55 | /** \brief Fetch a const pointer to the underlying engine. */ |
56 | #define HWLM_C_DATA(p) ((const void *)((const char *)(p) \ |
57 | + ROUNDUP_CL(sizeof(struct HWLM)))) |
58 | |
59 | /** \brief Fetch a pointer to the underlying engine. */ |
60 | #define HWLM_DATA(p) ((void *)((char *)(p) + ROUNDUP_CL(sizeof(struct HWLM)))) |
61 | |
62 | #endif |
63 | |