1 // Copyright 2010 Google LLC 2 // 3 // Redistribution and use in source and binary forms, with or without 4 // modification, are permitted provided that the following conditions are 5 // met: 6 // 7 // * Redistributions of source code must retain the above copyright 8 // notice, this list of conditions and the following disclaimer. 9 // * Redistributions in binary form must reproduce the above 10 // copyright notice, this list of conditions and the following disclaimer 11 // in the documentation and/or other materials provided with the 12 // distribution. 13 // * Neither the name of Google LLC nor the names of its 14 // contributors may be used to endorse or promote products derived from 15 // this software without specific prior written permission. 16 // 17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 29 // exploitability_engine.h: Generic exploitability engine. 30 // 31 // The Exploitability class is an abstract base class providing common 32 // generic methods that apply to exploitability engines for specific platforms. 33 // Specific implementations will extend this class by providing run 34 // methods to fill in the exploitability_ enumeration of the ProcessState 35 // for a crash. 36 // 37 // Author: Cris Neckar 38 39 #ifndef GOOGLE_BREAKPAD_PROCESSOR_EXPLOITABILITY_H_ 40 #define GOOGLE_BREAKPAD_PROCESSOR_EXPLOITABILITY_H_ 41 42 #include "google_breakpad/common/breakpad_types.h" 43 #include "google_breakpad/processor/minidump.h" 44 #include "google_breakpad/processor/process_state.h" 45 46 namespace google_breakpad { 47 48 class Exploitability { 49 public: ~Exploitability()50 virtual ~Exploitability() {} 51 52 static Exploitability *ExploitabilityForPlatform(Minidump *dump, 53 ProcessState *process_state); 54 55 // The boolean parameter signals whether the exploitability engine is 56 // enabled to call out to objdump for disassembly. This is disabled by 57 // default. It is used to check the identity of the instruction that 58 // caused the program to crash. This should not be enabled if there are 59 // portability concerns. 60 static Exploitability *ExploitabilityForPlatform(Minidump *dump, 61 ProcessState *process_state, 62 bool enable_objdump); 63 64 ExploitabilityRating CheckExploitability(); 65 bool AddressIsAscii(uint64_t); 66 67 protected: 68 Exploitability(Minidump *dump, 69 ProcessState *process_state); 70 71 Minidump *dump_; 72 ProcessState *process_state_; 73 SystemInfo *system_info_; 74 75 private: 76 virtual ExploitabilityRating CheckPlatformExploitability() = 0; 77 }; 78 79 } // namespace google_breakpad 80 81 #endif // GOOGLE_BREAKPAD_PROCESSOR_EXPLOITABILITY_H_ 82