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 |
26 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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 | |
47 | namespace google_breakpad { |
48 | |
49 | class 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 | |