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1 // Copyright 2015 The Crashpad Authors. All rights reserved. | 1 // Copyright 2015 The Crashpad Authors. All rights reserved. |
2 // | 2 // |
3 // Licensed under the Apache License, Version 2.0 (the "License"); | 3 // Licensed under the Apache License, Version 2.0 (the "License"); |
4 // you may not use this file except in compliance with the License. | 4 // you may not use this file except in compliance with the License. |
5 // You may obtain a copy of the License at | 5 // You may obtain a copy of the License at |
6 // | 6 // |
7 // http://www.apache.org/licenses/LICENSE-2.0 | 7 // http://www.apache.org/licenses/LICENSE-2.0 |
8 // | 8 // |
9 // Unless required by applicable law or agreed to in writing, software | 9 // Unless required by applicable law or agreed to in writing, software |
10 // distributed under the License is distributed on an "AS IS" BASIS, | 10 // distributed under the License is distributed on an "AS IS" BASIS, |
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
12 // See the License for the specific language governing permissions and | 12 // See the License for the specific language governing permissions and |
13 // limitations under the License. | 13 // limitations under the License. |
14 | 14 |
15 #include "util/win/exception_handler_server.h" | 15 #include "util/win/exception_handler_server.h" |
16 | 16 |
17 #include <string.h> | 17 #include <string.h> |
18 | 18 |
19 #include "base/logging.h" | 19 #include "base/logging.h" |
20 #include "base/rand_util.h" | 20 #include "base/rand_util.h" |
21 #include "base/strings/stringprintf.h" | 21 #include "base/strings/stringprintf.h" |
22 #include "base/strings/utf_string_conversions.h" | 22 #include "base/strings/utf_string_conversions.h" |
23 #include "minidump/minidump_file_writer.h" | 23 #include "minidump/minidump_file_writer.h" |
24 #include "snapshot/crashpad_info_client_options.h" | 24 #include "snapshot/crashpad_info_client_options.h" |
25 #include "snapshot/win/process_snapshot_win.h" | 25 #include "snapshot/win/process_snapshot_win.h" |
26 #include "util/file/file_writer.h" | 26 #include "util/file/file_writer.h" |
27 #include "util/misc/tri_state.h" | 27 #include "util/misc/tri_state.h" |
28 #include "util/misc/uuid.h" | 28 #include "util/misc/uuid.h" |
29 #include "util/win/registration_protocol_win.h" | 29 #include "util/win/registration_protocol_win.h" |
| 30 #include "util/win/xp_compat.h" |
30 | 31 |
31 namespace crashpad { | 32 namespace crashpad { |
32 | 33 |
33 namespace { | 34 namespace { |
34 | 35 |
35 decltype(GetNamedPipeClientProcessId)* GetNamedPipeClientProcessIdFunction() { | 36 decltype(GetNamedPipeClientProcessId)* GetNamedPipeClientProcessIdFunction() { |
36 static decltype(GetNamedPipeClientProcessId)* func = | 37 static decltype(GetNamedPipeClientProcessId)* func = |
37 reinterpret_cast<decltype(GetNamedPipeClientProcessId)*>(GetProcAddress( | 38 reinterpret_cast<decltype(GetNamedPipeClientProcessId)*>(GetProcAddress( |
38 GetModuleHandle(L"kernel32.dll"), "GetNamedPipeClientProcessId")); | 39 GetModuleHandle(L"kernel32.dll"), "GetNamedPipeClientProcessId")); |
39 return func; | 40 return func; |
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335 return false; | 336 return false; |
336 } | 337 } |
337 } | 338 } |
338 | 339 |
339 // We attempt to open the process as us. This is the main case that should | 340 // We attempt to open the process as us. This is the main case that should |
340 // almost always succeed as the server will generally be more privileged. If | 341 // almost always succeed as the server will generally be more privileged. If |
341 // we're running as a different user, it may be that we will fail to open | 342 // we're running as a different user, it may be that we will fail to open |
342 // the process, but the client will be able to, so we make a second attempt | 343 // the process, but the client will be able to, so we make a second attempt |
343 // having impersonated the client. | 344 // having impersonated the client. |
344 HANDLE client_process = OpenProcess( | 345 HANDLE client_process = OpenProcess( |
345 PROCESS_ALL_ACCESS, false, message.registration.client_process_id); | 346 kXPProcessAllAccess, false, message.registration.client_process_id); |
346 if (!client_process) { | 347 if (!client_process) { |
347 if (!ImpersonateNamedPipeClient(service_context.pipe())) { | 348 if (!ImpersonateNamedPipeClient(service_context.pipe())) { |
348 PLOG(ERROR) << "ImpersonateNamedPipeClient"; | 349 PLOG(ERROR) << "ImpersonateNamedPipeClient"; |
349 return false; | 350 return false; |
350 } | 351 } |
351 HANDLE client_process = OpenProcess( | 352 HANDLE client_process = OpenProcess( |
352 PROCESS_ALL_ACCESS, false, message.registration.client_process_id); | 353 kXPProcessAllAccess, false, message.registration.client_process_id); |
353 PCHECK(RevertToSelf()); | 354 PCHECK(RevertToSelf()); |
354 if (!client_process) { | 355 if (!client_process) { |
355 LOG(ERROR) << "failed to open " << message.registration.client_process_id; | 356 LOG(ERROR) << "failed to open " << message.registration.client_process_id; |
356 return false; | 357 return false; |
357 } | 358 } |
358 } | 359 } |
359 | 360 |
360 internal::ClientData* client; | 361 internal::ClientData* client; |
361 { | 362 { |
362 base::AutoLock lock(*service_context.clients_lock()); | 363 base::AutoLock lock(*service_context.clients_lock()); |
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419 void __stdcall ExceptionHandlerServer::OnProcessEnd(void* ctx, BOOLEAN) { | 420 void __stdcall ExceptionHandlerServer::OnProcessEnd(void* ctx, BOOLEAN) { |
420 // This function is executed on the thread pool. | 421 // This function is executed on the thread pool. |
421 internal::ClientData* client = reinterpret_cast<internal::ClientData*>(ctx); | 422 internal::ClientData* client = reinterpret_cast<internal::ClientData*>(ctx); |
422 base::AutoLock lock(*client->lock()); | 423 base::AutoLock lock(*client->lock()); |
423 | 424 |
424 // Post back to the main thread to have it delete this client record. | 425 // Post back to the main thread to have it delete this client record. |
425 PostQueuedCompletionStatus(client->port(), 0, ULONG_PTR(client), nullptr); | 426 PostQueuedCompletionStatus(client->port(), 0, ULONG_PTR(client), nullptr); |
426 } | 427 } |
427 | 428 |
428 } // namespace crashpad | 429 } // namespace crashpad |
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