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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2013 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 #include "sandbox/win/src/process_thread_interception.h" | 5 #include "sandbox/win/src/process_thread_interception.h" |
6 | 6 |
7 #include "base/win/windows_version.h" | |
7 #include "sandbox/win/src/crosscall_client.h" | 8 #include "sandbox/win/src/crosscall_client.h" |
8 #include "sandbox/win/src/ipc_tags.h" | 9 #include "sandbox/win/src/ipc_tags.h" |
9 #include "sandbox/win/src/policy_params.h" | 10 #include "sandbox/win/src/policy_params.h" |
10 #include "sandbox/win/src/policy_target.h" | 11 #include "sandbox/win/src/policy_target.h" |
11 #include "sandbox/win/src/sandbox_factory.h" | 12 #include "sandbox/win/src/sandbox_factory.h" |
12 #include "sandbox/win/src/sandbox_nt_util.h" | 13 #include "sandbox/win/src/sandbox_nt_util.h" |
13 #include "sandbox/win/src/sharedmem_ipc_client.h" | 14 #include "sandbox/win/src/sharedmem_ipc_client.h" |
14 #include "sandbox/win/src/target_services.h" | 15 #include "sandbox/win/src/target_services.h" |
15 | 16 |
16 namespace sandbox { | 17 namespace sandbox { |
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398 if (ERROR_SUCCESS != answer.win32_result) | 399 if (ERROR_SUCCESS != answer.win32_result) |
399 return FALSE; | 400 return FALSE; |
400 | 401 |
401 return TRUE; | 402 return TRUE; |
402 } while (false); | 403 } while (false); |
403 | 404 |
404 ::SetLastError(original_error); | 405 ::SetLastError(original_error); |
405 return FALSE; | 406 return FALSE; |
406 } | 407 } |
407 | 408 |
409 // GetThreadId is not available on WINXP. So we'll | |
410 // load it on-the-fly. | |
411 const wchar_t kKernel32DllName[] = L"Kernel32.dll"; | |
412 typedef decltype(GetThreadId)* GetThreadIdFunc; | |
413 | |
414 HANDLE WINAPI TargetCreateThread(CreateThreadFunction orig_CreateThread, | |
415 LPSECURITY_ATTRIBUTES thread_attributes, | |
416 SIZE_T stack_size, | |
417 LPTHREAD_START_ROUTINE start_address, | |
418 PVOID parameter, | |
419 DWORD creation_flags, | |
420 LPDWORD thread_id) { | |
421 HANDLE hThread = NULL; | |
422 | |
423 TargetServices* target_services = SandboxFactory::GetTargetServices(); | |
424 if (NULL == target_services || | |
425 target_services->GetState()->IsCsrssConnected()) { | |
426 hThread = orig_CreateThread(thread_attributes, stack_size, start_address, | |
427 parameter, creation_flags, thread_id); | |
428 if (hThread) { | |
429 return hThread; | |
430 } | |
431 } | |
432 static GetThreadIdFunc GetThreadId_func = NULL; | |
433 | |
434 if (NULL == target_services) | |
435 return NULL; | |
436 | |
437 // We don't trust that the IPC can work this early. | |
438 if (!target_services->GetState()->InitCalled()) | |
439 return NULL; | |
440 | |
441 DWORD original_error = ::GetLastError(); | |
442 | |
443 do { | |
444 if (NULL != thread_id && | |
445 !ValidParameter(thread_id, sizeof(*thread_id), WRITE)) | |
446 break; | |
447 | |
448 void* memory = GetGlobalIPCMemory(); | |
449 if (NULL == memory) | |
450 break; | |
451 | |
452 SharedMemIPCClient ipc(memory); | |
453 CrossCallReturn answer = {0}; | |
454 | |
455 ResultCode code = CrossCall( | |
456 ipc, IPC_CREATETHREAD_TAG, reinterpret_cast<LPVOID>(thread_attributes), | |
457 reinterpret_cast<LPVOID>(stack_size), | |
458 reinterpret_cast<LPVOID>(start_address), | |
Will Harris
2015/12/03 23:58:14
can you investigate why these casts are still need
liamjm (20p)
2016/02/02 00:23:39
start_address is not an LPVOID it is a LPTHREAD_ST
| |
459 reinterpret_cast<LPVOID>(parameter), creation_flags, &answer); | |
460 if (SBOX_ALL_OK != code) | |
461 break; | |
462 | |
463 ::SetLastError(answer.win32_result); | |
464 if (ERROR_SUCCESS != answer.win32_result) { | |
465 return NULL; | |
466 } | |
467 | |
468 if (thread_id != NULL) { | |
469 // GetThreadId is not available on WINXP. Set thread_id to 0, as this is | |
470 // what is returned in the event of a failure. | |
471 *thread_id = 0; | |
472 if (base::win::GetVersion() >= base::win::VERSION_VISTA) { | |
473 if (!GetThreadId_func) { | |
474 HMODULE kernel32_dll = ::GetModuleHandle(kKernel32DllName); | |
475 if (!kernel32_dll) | |
476 break; | |
477 GetThreadId_func = reinterpret_cast<GetThreadIdFunc>( | |
478 GetProcAddress(kernel32_dll, "GetThreadId")); | |
479 if (!GetThreadId_func) | |
480 break; | |
481 } | |
482 *thread_id = GetThreadId_func(answer.handle); | |
483 } | |
484 } | |
485 return answer.handle; | |
486 } while (false); | |
487 | |
488 ::SetLastError(original_error); | |
489 return NULL; | |
490 } | |
491 | |
408 } // namespace sandbox | 492 } // namespace sandbox |
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