1// Copyright (c) 2010 Google Inc.
2// All rights reserved.
3//
4// Redistribution and use in source and binary forms, with or without
5// modification, are permitted provided that the following conditions are
6// met:
7//
8// * Redistributions of source code must retain the above copyright
9// notice, this list of conditions and the following disclaimer.
10// * Redistributions in binary form must reproduce the above
11// copyright notice, this list of conditions and the following disclaimer
12// in the documentation and/or other materials provided with the
13// distribution.
14// * Neither the name of Google Inc. nor the names of its
15// contributors may be used to endorse or promote products derived from
16// this software without specific prior written permission.
17//
18// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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28// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29
30// exploitability_engine.h: Generic exploitability engine.
31//
32// The Exploitability class is an abstract base class providing common
33// generic methods that apply to exploitability engines for specific platforms.
34// Specific implementations will extend this class by providing run
35// methods to fill in the exploitability_ enumeration of the ProcessState
36// for a crash.
37//
38// Author: Cris Neckar
39
40#ifndef GOOGLE_BREAKPAD_PROCESSOR_EXPLOITABILITY_H_
41#define GOOGLE_BREAKPAD_PROCESSOR_EXPLOITABILITY_H_
42
43#include "google_breakpad/common/breakpad_types.h"
44#include "google_breakpad/processor/minidump.h"
45#include "google_breakpad/processor/process_state.h"
46
47namespace google_breakpad {
48
49class Exploitability {
50 public:
51 virtual ~Exploitability() {}
52
53 static Exploitability *ExploitabilityForPlatform(Minidump *dump,
54 ProcessState *process_state);
55
56 // The boolean parameter signals whether the exploitability engine is
57 // enabled to call out to objdump for disassembly. This is disabled by
58 // default. It is used to check the identity of the instruction that
59 // caused the program to crash. This should not be enabled if there are
60 // portability concerns.
61 static Exploitability *ExploitabilityForPlatform(Minidump *dump,
62 ProcessState *process_state,
63 bool enable_objdump);
64
65 ExploitabilityRating CheckExploitability();
66 bool AddressIsAscii(uint64_t);
67
68 protected:
69 Exploitability(Minidump *dump,
70 ProcessState *process_state);
71
72 Minidump *dump_;
73 ProcessState *process_state_;
74 SystemInfo *system_info_;
75
76 private:
77 virtual ExploitabilityRating CheckPlatformExploitability() = 0;
78};
79
80} // namespace google_breakpad
81
82#endif // GOOGLE_BREAKPAD_PROCESSOR_EXPLOITABILITY_H_
83