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29
30 // exploitability_engine.cc: Generic exploitability engine.
31 //
32 // See exploitable_engine.h for documentation.
33 //
34 // Author: Cris Neckar
35
36
37 #include <cassert>
38
39 #include "common/scoped_ptr.h"
40 #include "google_breakpad/processor/exploitability.h"
41 #include "google_breakpad/processor/minidump.h"
42 #include "google_breakpad/processor/process_state.h"
43 #include "processor/exploitability_linux.h"
44 #include "processor/exploitability_win.h"
45 #include "processor/logging.h"
46
47 namespace google_breakpad {
48
Exploitability(Minidump * dump,ProcessState * process_state)49 Exploitability::Exploitability(Minidump *dump,
50 ProcessState *process_state)
51 : dump_(dump),
52 process_state_(process_state) {}
53
CheckExploitability()54 ExploitabilityRating Exploitability::CheckExploitability() {
55 return CheckPlatformExploitability();
56 }
57
ExploitabilityForPlatform(Minidump * dump,ProcessState * process_state)58 Exploitability *Exploitability::ExploitabilityForPlatform(
59 Minidump *dump,
60 ProcessState *process_state) {
61 Exploitability *platform_exploitability = NULL;
62 MinidumpSystemInfo *minidump_system_info = dump->GetSystemInfo();
63 if (!minidump_system_info)
64 return NULL;
65
66 const MDRawSystemInfo *raw_system_info =
67 minidump_system_info->system_info();
68 if (!raw_system_info)
69 return NULL;
70
71 switch (raw_system_info->platform_id) {
72 case MD_OS_WIN32_NT:
73 case MD_OS_WIN32_WINDOWS: {
74 platform_exploitability = new ExploitabilityWin(dump, process_state);
75 break;
76 }
77 case MD_OS_LINUX: {
78 platform_exploitability = new ExploitabilityLinux(dump, process_state);
79 break;
80 }
81 case MD_OS_MAC_OS_X:
82 case MD_OS_IOS:
83 case MD_OS_UNIX:
84 case MD_OS_SOLARIS:
85 case MD_OS_ANDROID:
86 case MD_OS_PS3:
87 default: {
88 platform_exploitability = NULL;
89 break;
90 }
91 }
92
93 BPLOG_IF(ERROR, !platform_exploitability) <<
94 "No Exploitability module for platform: " <<
95 process_state->system_info()->os;
96 return platform_exploitability;
97 }
98
AddressIsAscii(uint64_t address)99 bool Exploitability::AddressIsAscii(uint64_t address) {
100 for (int i = 0; i < 8; i++) {
101 uint8_t byte = (address >> (8*i)) & 0xff;
102 if ((byte >= ' ' && byte <= '~') || byte == 0)
103 continue;
104 return false;
105 }
106 return true;
107 }
108
109 } // namespace google_breakpad
110
111