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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // This module contains the necessary code to register the Breakpad exception | 5 // This module contains the necessary code to register the Breakpad exception |
6 // handler. This implementation is based on Chrome's crash reporting code. | 6 // handler. This implementation is based on Chrome's crash reporting code. |
7 | 7 |
8 #include "chrome_elf/breakpad.h" | 8 #include "chrome_elf/breakpad/breakpad.h" |
9 | 9 |
10 #include <sddl.h> | |
11 | |
12 #include "base/macros.h" | |
13 #include "base/strings/string16.h" | |
14 #include "breakpad/src/client/windows/handler/exception_handler.h" | 10 #include "breakpad/src/client/windows/handler/exception_handler.h" |
15 #include "chrome/common/chrome_version.h" | 11 #include "chrome/common/chrome_version.h" |
16 #include "chrome/install_static/install_util.h" | 12 #include "chrome/install_static/install_util.h" |
| 13 #include "chrome_elf/nt_registry/nt_registry.h" |
17 | 14 |
18 google_breakpad::ExceptionHandler* g_elf_breakpad = NULL; | 15 google_breakpad::ExceptionHandler* g_elf_breakpad = NULL; |
19 | 16 |
20 namespace { | 17 namespace { |
21 | 18 |
22 const wchar_t kBreakpadProductName[] = L"Chrome"; | 19 const wchar_t kBreakpadProductName[] = L"Chrome"; |
23 const wchar_t kBreakpadVersionEntry[] = L"ver"; | 20 const wchar_t kBreakpadVersionEntry[] = L"ver"; |
24 const wchar_t kBreakpadProdEntry[] = L"prod"; | 21 const wchar_t kBreakpadProdEntry[] = L"prod"; |
25 const wchar_t kBreakpadPlatformEntry[] = L"plat"; | 22 const wchar_t kBreakpadPlatformEntry[] = L"plat"; |
26 const wchar_t kBreakpadPlatformWin32[] = L"Win32"; | 23 const wchar_t kBreakpadPlatformWin32[] = L"Win32"; |
27 const wchar_t kBreakpadProcessEntry[] = L"ptype"; | 24 const wchar_t kBreakpadProcessEntry[] = L"ptype"; |
28 const wchar_t kBreakpadChannelEntry[] = L"channel"; | 25 const wchar_t kBreakpadChannelEntry[] = L"channel"; |
29 | 26 |
30 // The protocol for connecting to the out-of-process Breakpad crash | 27 // The protocol for connecting to the out-of-process Breakpad crash |
31 // reporter is different for x86-32 and x86-64: the message sizes | 28 // reporter is different for x86-32 and x86-64: the message sizes |
32 // are different because the message struct contains a pointer. As | 29 // are different because the message struct contains a pointer. As |
33 // a result, there are two different named pipes to connect to. The | 30 // a result, there are two different named pipes to connect to. The |
34 // 64-bit one is distinguished with an "-x64" suffix. | 31 // 64-bit one is distinguished with an "-x64" suffix. |
35 const wchar_t kChromePipeName[] = L"\\\\.\\pipe\\ChromeCrashServices\\"; | 32 const wchar_t kChromePipeName[] = L"\\\\.\\pipe\\ChromeCrashServices\\"; |
36 const wchar_t kGoogleUpdatePipeName[] = L"\\\\.\\pipe\\GoogleCrashServices\\"; | 33 const wchar_t kGoogleUpdatePipeName[] = L"\\\\.\\pipe\\GoogleCrashServices\\"; |
37 const wchar_t kSystemPrincipalSid[] = L"S-1-5-18"; | 34 const wchar_t kSystemPrincipalSid[] = L"S-1-5-18"; |
38 | 35 |
39 const wchar_t kNoErrorDialogs[] = L"noerrdialogs"; | 36 const wchar_t kNoErrorDialogs[] = L"noerrdialogs"; |
40 | 37 |
41 google_breakpad::CustomClientInfo* GetCustomInfo() { | 38 google_breakpad::CustomClientInfo* GetCustomInfo() { |
42 base::string16 process = | 39 std::wstring process = |
43 install_static::IsNonBrowserProcess() ? L"renderer" : L"browser"; | 40 install_static::IsNonBrowserProcess() ? L"renderer" : L"browser"; |
44 | 41 |
45 wchar_t exe_path[MAX_PATH] = {}; | 42 wchar_t exe_path[MAX_PATH] = {}; |
46 base::string16 channel; | 43 std::wstring channel; |
47 if (GetModuleFileName(NULL, exe_path, arraysize(exe_path)) && | 44 if (GetModuleFileName(NULL, exe_path, MAX_PATH) && |
48 install_static::IsSxSChrome(exe_path)) { | 45 install_static::IsSxSChrome(exe_path)) { |
49 channel = L"canary"; | 46 channel = L"canary"; |
50 } | 47 } |
51 | 48 |
52 static google_breakpad::CustomInfoEntry ver_entry( | 49 static google_breakpad::CustomInfoEntry ver_entry( |
53 kBreakpadVersionEntry, TEXT(CHROME_VERSION_STRING)); | 50 kBreakpadVersionEntry, TEXT(CHROME_VERSION_STRING)); |
54 static google_breakpad::CustomInfoEntry prod_entry( | 51 static google_breakpad::CustomInfoEntry prod_entry(kBreakpadProdEntry, |
55 kBreakpadProdEntry, kBreakpadProductName); | 52 kBreakpadProductName); |
56 static google_breakpad::CustomInfoEntry plat_entry( | 53 static google_breakpad::CustomInfoEntry plat_entry(kBreakpadPlatformEntry, |
57 kBreakpadPlatformEntry, kBreakpadPlatformWin32); | 54 kBreakpadPlatformWin32); |
58 static google_breakpad::CustomInfoEntry proc_entry( | 55 static google_breakpad::CustomInfoEntry proc_entry(kBreakpadProcessEntry, |
59 kBreakpadProcessEntry, process.c_str()); | 56 process.c_str()); |
60 static google_breakpad::CustomInfoEntry channel_entry( | 57 static google_breakpad::CustomInfoEntry channel_entry(kBreakpadChannelEntry, |
61 kBreakpadChannelEntry, channel.c_str()); | 58 channel.c_str()); |
62 static google_breakpad::CustomInfoEntry entries[] = { | 59 static google_breakpad::CustomInfoEntry entries[] = { |
63 ver_entry, prod_entry, plat_entry, proc_entry, channel_entry}; | 60 ver_entry, prod_entry, plat_entry, proc_entry, channel_entry}; |
64 static google_breakpad::CustomClientInfo custom_info = { | 61 static google_breakpad::CustomClientInfo custom_info = { |
65 entries, arraysize(entries) }; | 62 entries, (sizeof(entries) / sizeof(google_breakpad::CustomInfoEntry))}; |
66 return &custom_info; | 63 return &custom_info; |
67 } | 64 } |
68 | 65 |
69 base::string16 GetUserSidString() { | |
70 // Get the current token. | |
71 HANDLE token = NULL; | |
72 base::string16 user_sid; | |
73 if (!::OpenProcessToken(::GetCurrentProcess(), TOKEN_QUERY, &token)) | |
74 return user_sid; | |
75 | |
76 DWORD size = sizeof(TOKEN_USER) + SECURITY_MAX_SID_SIZE; | |
77 BYTE user_bytes[sizeof(TOKEN_USER) + SECURITY_MAX_SID_SIZE] = {}; | |
78 TOKEN_USER* user = reinterpret_cast<TOKEN_USER*>(user_bytes); | |
79 | |
80 wchar_t* sid_string = NULL; | |
81 if (::GetTokenInformation(token, TokenUser, user, size, &size) && | |
82 user->User.Sid && | |
83 ::ConvertSidToStringSid(user->User.Sid, &sid_string)) { | |
84 user_sid = sid_string; | |
85 ::LocalFree(sid_string); | |
86 } | |
87 | |
88 CloseHandle(token); | |
89 return user_sid; | |
90 } | |
91 | |
92 bool IsHeadless() { | 66 bool IsHeadless() { |
93 DWORD ret = ::GetEnvironmentVariable(L"CHROME_HEADLESS", NULL, 0); | 67 DWORD ret = ::GetEnvironmentVariable(L"CHROME_HEADLESS", NULL, 0); |
94 if (ret != 0) | 68 if (ret != 0) |
95 return true; | 69 return true; |
96 | 70 |
97 wchar_t* command_line = ::GetCommandLine(); | 71 wchar_t* command_line = ::GetCommandLine(); |
98 | 72 |
99 // Note: Since this is a pure substring search rather than a check for a | 73 // Note: Since this is a pure substring search rather than a check for a |
100 // switch, there is a small chance that this code will match things that the | 74 // switch, there is a small chance that this code will match things that the |
101 // Chrome code (which executes a similar check) does not. However, as long as | 75 // Chrome code (which executes a similar check) does not. However, as long as |
102 // no other switches contain the string "noerrdialogs", it should not be an | 76 // no other switches contain the string "noerrdialogs", it should not be an |
103 // issue. | 77 // issue. |
104 return (command_line && wcsstr(command_line, kNoErrorDialogs)); | 78 return (command_line && wcsstr(command_line, kNoErrorDialogs)); |
105 } | 79 } |
106 | 80 |
107 } // namespace | 81 } // namespace |
108 | 82 |
109 int GenerateCrashDump(EXCEPTION_POINTERS* exinfo) { | 83 int GenerateCrashDump(EXCEPTION_POINTERS* exinfo) { |
110 DWORD code = exinfo->ExceptionRecord->ExceptionCode; | 84 DWORD code = exinfo->ExceptionRecord->ExceptionCode; |
111 if (code == EXCEPTION_BREAKPOINT || code == EXCEPTION_SINGLE_STEP) | 85 if (code == EXCEPTION_BREAKPOINT || code == EXCEPTION_SINGLE_STEP) |
112 return EXCEPTION_CONTINUE_SEARCH; | 86 return EXCEPTION_CONTINUE_SEARCH; |
113 | 87 |
114 if (g_elf_breakpad != NULL) | 88 if (g_elf_breakpad != NULL) |
115 g_elf_breakpad->WriteMinidumpForException(exinfo); | 89 g_elf_breakpad->WriteMinidumpForException(exinfo); |
116 return EXCEPTION_CONTINUE_SEARCH; | 90 return EXCEPTION_CONTINUE_SEARCH; |
117 } | 91 } |
118 | 92 |
119 void InitializeCrashReporting() { | 93 void InitializeCrashReporting() { |
120 wchar_t exe_path[MAX_PATH] = {}; | 94 wchar_t exe_path[MAX_PATH] = {}; |
121 if (!::GetModuleFileName(NULL, exe_path, arraysize(exe_path))) | 95 if (!::GetModuleFileName(NULL, exe_path, MAX_PATH)) |
122 return; | 96 return; |
123 | 97 |
124 // Disable the message box for assertions. | 98 // Disable the message box for assertions. |
125 _CrtSetReportMode(_CRT_ASSERT, 0); | 99 _CrtSetReportMode(_CRT_ASSERT, 0); |
126 | 100 |
127 // Get the alternate dump directory. We use the temp path. | 101 // Get the alternate dump directory. We use the temp path. |
128 // N.B. We don't use base::GetTempDir() here to avoid running more code then | 102 // N.B. We don't use base::GetTempDir() here to avoid running more code then |
129 // necessary before crashes can be properly reported. | 103 // necessary before crashes can be properly reported. |
130 wchar_t temp_directory[MAX_PATH + 1] = {}; | 104 wchar_t temp_directory[MAX_PATH + 1] = {}; |
131 DWORD length = GetTempPath(MAX_PATH, temp_directory); | 105 DWORD length = GetTempPath(MAX_PATH, temp_directory); |
132 if (length == 0) | 106 if (length == 0) |
133 return; | 107 return; |
134 | 108 |
135 // Minidump with stacks, PEB, TEBs and unloaded module list. | 109 // Minidump with stacks, PEB, TEBs and unloaded module list. |
136 MINIDUMP_TYPE dump_type = static_cast<MINIDUMP_TYPE>( | 110 MINIDUMP_TYPE dump_type = static_cast<MINIDUMP_TYPE>( |
137 MiniDumpWithProcessThreadData | // Get PEB and TEB. | 111 MiniDumpWithProcessThreadData | // Get PEB and TEB. |
138 MiniDumpWithUnloadedModules | // Get unloaded modules when available. | 112 MiniDumpWithUnloadedModules | // Get unloaded modules when available. |
139 MiniDumpWithIndirectlyReferencedMemory); // Get memory referenced by | 113 MiniDumpWithIndirectlyReferencedMemory); // Get memory referenced by |
140 // stack. | 114 // stack. |
141 | 115 |
142 #if defined(GOOGLE_CHROME_BUILD) && defined(OFFICIAL_BUILD) | 116 #if defined(GOOGLE_CHROME_BUILD) && defined(OFFICIAL_BUILD) |
143 bool is_official_chrome_build = true; | 117 bool is_official_chrome_build = true; |
144 #else | 118 #else |
145 bool is_official_chrome_build = false; | 119 bool is_official_chrome_build = false; |
146 #endif | 120 #endif |
147 | 121 |
148 base::string16 pipe_name; | 122 std::wstring pipe_name; |
149 | 123 |
150 bool enabled_by_policy = false; | 124 bool enabled_by_policy = false; |
151 bool use_policy = | 125 bool use_policy = |
152 install_static::ReportingIsEnforcedByPolicy(&enabled_by_policy); | 126 install_static::ReportingIsEnforcedByPolicy(&enabled_by_policy); |
153 | 127 |
154 if (!use_policy && IsHeadless()) { | 128 if (!use_policy && IsHeadless()) { |
155 pipe_name = kChromePipeName; | 129 pipe_name = kChromePipeName; |
156 } else if (use_policy ? enabled_by_policy | 130 } else if (use_policy ? enabled_by_policy |
157 : (is_official_chrome_build && | 131 : (is_official_chrome_build && |
158 install_static::GetCollectStatsConsent())) { | 132 install_static::GetCollectStatsConsent())) { |
159 // Build the pipe name. It can be one of: | 133 // Build the pipe name. It can be one of: |
160 // 32-bit system: \\.\pipe\GoogleCrashServices\S-1-5-18 | 134 // 32-bit system: \\.\pipe\GoogleCrashServices\S-1-5-18 |
161 // 32-bit user: \\.\pipe\GoogleCrashServices\<user SID> | 135 // 32-bit user: \\.\pipe\GoogleCrashServices\<user SID> |
162 // 64-bit system: \\.\pipe\GoogleCrashServices\S-1-5-18-x64 | 136 // 64-bit system: \\.\pipe\GoogleCrashServices\S-1-5-18-x64 |
163 // 64-bit user: \\.\pipe\GoogleCrashServices\<user SID>-x64 | 137 // 64-bit user: \\.\pipe\GoogleCrashServices\<user SID>-x64 |
164 base::string16 user_sid = install_static::IsSystemInstall(exe_path) | 138 std::wstring user_sid = install_static::IsSystemInstall(exe_path) |
165 ? kSystemPrincipalSid | 139 ? kSystemPrincipalSid |
166 : GetUserSidString(); | 140 : nt::GetCurrentUserSidString(); |
167 if (user_sid.empty()) | 141 if (user_sid.empty()) |
168 return; | 142 return; |
169 | 143 |
170 pipe_name = kGoogleUpdatePipeName; | 144 pipe_name = kGoogleUpdatePipeName; |
171 pipe_name += user_sid; | 145 pipe_name += user_sid; |
172 | 146 |
173 #if defined(_WIN64) | 147 #if defined(_WIN64) |
174 pipe_name += L"-x64"; | 148 pipe_name += L"-x64"; |
175 #endif | 149 #endif |
176 } else { | 150 } else { |
177 // Either this is a Chromium build, reporting is disabled by policy or the | 151 // Either this is a Chromium build, reporting is disabled by policy or the |
178 // user has not given consent. | 152 // user has not given consent. |
179 return; | 153 return; |
180 } | 154 } |
181 | 155 |
182 g_elf_breakpad = new google_breakpad::ExceptionHandler( | 156 g_elf_breakpad = new google_breakpad::ExceptionHandler( |
183 temp_directory, | 157 temp_directory, NULL, NULL, NULL, |
184 NULL, | 158 google_breakpad::ExceptionHandler::HANDLER_ALL, dump_type, |
185 NULL, | 159 pipe_name.c_str(), GetCustomInfo()); |
186 NULL, | |
187 google_breakpad::ExceptionHandler::HANDLER_ALL, | |
188 dump_type, | |
189 pipe_name.c_str(), | |
190 GetCustomInfo()); | |
191 | 160 |
192 if (g_elf_breakpad->IsOutOfProcess()) { | 161 if (g_elf_breakpad->IsOutOfProcess()) { |
193 // Tells breakpad to handle breakpoint and single step exceptions. | 162 // Tells breakpad to handle breakpoint and single step exceptions. |
194 g_elf_breakpad->set_handle_debug_exceptions(true); | 163 g_elf_breakpad->set_handle_debug_exceptions(true); |
195 } | 164 } |
196 } | 165 } |
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