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. */
48struct 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