1/*
2 * Copyright (c) 2015-2016, 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#ifndef DFA_BUILD_STRAT_H
30#define DFA_BUILD_STRAT_H
31
32#include "rdfa.h"
33#include "ue2common.h"
34
35#include <memory>
36#include <vector>
37
38struct NFA;
39
40namespace ue2 {
41
42class ReportManager;
43
44struct raw_report_info {
45 virtual ~raw_report_info();
46 virtual u32 getReportListSize() const = 0; /* in bytes */
47 virtual size_t size() const = 0; /* number of lists */
48 virtual void fillReportLists(NFA *n, size_t base_offset,
49 std::vector<u32> &ro /* out */) const = 0;
50};
51
52class dfa_build_strat {
53public:
54 explicit dfa_build_strat(const ReportManager &rm_in) : rm(rm_in) {}
55 virtual ~dfa_build_strat();
56 virtual raw_dfa &get_raw() const = 0;
57 virtual std::unique_ptr<raw_report_info> gatherReports(
58 std::vector<u32> &reports /* out */,
59 std::vector<u32> &reports_eod /* out */,
60 u8 *isSingleReport /* out */,
61 ReportID *arbReport /* out */) const = 0;
62protected:
63 const ReportManager &rm;
64};
65
66} // namespace ue2
67
68#endif // DFA_BUILD_STRAT_H
69