toolkit/crashreporter/InjectCrashReporter.cpp@b8a032363ba2 (annotated)
toolkit/crashreporter/InjectCrashReporter.cpp
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #include "InjectCrashReporter.h" |
| michael@0 | 7 | #include "nsDirectoryServiceUtils.h" |
| michael@0 | 8 | #include "nsDirectoryServiceDefs.h" |
| michael@0 | 9 | #include "client/windows/crash_generation/crash_generation_client.h" |
| michael@0 | 10 | #include "nsExceptionHandler.h" |
| michael@0 | 11 | #include "LoadLibraryRemote.h" |
| michael@0 | 12 | #include "nsWindowsHelpers.h" |
| michael@0 | 13 | |
| michael@0 | 14 | using google_breakpad::CrashGenerationClient; |
| michael@0 | 15 | using CrashReporter::GetChildNotificationPipe; |
| michael@0 | 16 | |
| michael@0 | 17 | namespace mozilla { |
| michael@0 | 18 | |
| michael@0 | 19 | InjectCrashRunnable::InjectCrashRunnable(DWORD pid) |
| michael@0 | 20 | : mPID(pid) |
| michael@0 | 21 | { |
| michael@0 | 22 | nsCOMPtr<nsIFile> dll; |
| michael@0 | 23 | nsresult rv = NS_GetSpecialDirectory(NS_GRE_DIR, getter_AddRefs(dll)); |
| michael@0 | 24 | if (NS_SUCCEEDED(rv)) { |
| michael@0 | 25 | dll->Append(NS_LITERAL_STRING("breakpadinjector.dll")); |
| michael@0 | 26 | dll->GetPath(mInjectorPath); |
| michael@0 | 27 | } |
| michael@0 | 28 | } |
| michael@0 | 29 | |
| michael@0 | 30 | NS_IMETHODIMP |
| michael@0 | 31 | InjectCrashRunnable::Run() |
| michael@0 | 32 | { |
| michael@0 | 33 | if (mInjectorPath.IsEmpty()) |
| michael@0 | 34 | return NS_OK; |
| michael@0 | 35 | |
| michael@0 | 36 | nsAutoHandle hProcess( |
| michael@0 | 37 | OpenProcess(PROCESS_CREATE_THREAD | |
| michael@0 | 38 | PROCESS_QUERY_INFORMATION | |
| michael@0 | 39 | PROCESS_DUP_HANDLE | |
| michael@0 | 40 | PROCESS_VM_OPERATION | |
| michael@0 | 41 | PROCESS_VM_WRITE | |
| michael@0 | 42 | PROCESS_VM_READ, FALSE, mPID)); |
| michael@0 | 43 | if (!hProcess) { |
| michael@0 | 44 | NS_WARNING("Unable to open remote process handle for crashreporter injection."); |
| michael@0 | 45 | return NS_OK; |
| michael@0 | 46 | } |
| michael@0 | 47 | |
| michael@0 | 48 | void* proc = LoadRemoteLibraryAndGetAddress(hProcess, mInjectorPath.get(), |
| michael@0 | 49 | "Start"); |
| michael@0 | 50 | if (!proc) { |
| michael@0 | 51 | NS_WARNING("Unable to inject crashreporter DLL."); |
| michael@0 | 52 | return NS_OK; |
| michael@0 | 53 | } |
| michael@0 | 54 | |
| michael@0 | 55 | HANDLE hRemotePipe = |
| michael@0 | 56 | CrashGenerationClient::DuplicatePipeToClientProcess( |
| michael@0 | 57 | NS_ConvertASCIItoUTF16(GetChildNotificationPipe()).get(), |
| michael@0 | 58 | hProcess); |
| michael@0 | 59 | if (INVALID_HANDLE_VALUE == hRemotePipe) { |
| michael@0 | 60 | NS_WARNING("Unable to duplicate crash reporter pipe to process."); |
| michael@0 | 61 | return NS_OK; |
| michael@0 | 62 | } |
| michael@0 | 63 | |
| michael@0 | 64 | nsAutoHandle hThread(CreateRemoteThread(hProcess, nullptr, 0, |
| michael@0 | 65 | (LPTHREAD_START_ROUTINE) proc, |
| michael@0 | 66 | (void*) hRemotePipe, 0, nullptr)); |
| michael@0 | 67 | if (!hThread) { |
| michael@0 | 68 | NS_WARNING("Unable to CreateRemoteThread"); |
| michael@0 | 69 | |
| michael@0 | 70 | // We have to close the remote pipe or else our crash generation client |
| michael@0 | 71 | // will be stuck unable to accept other remote requests. |
| michael@0 | 72 | HANDLE toClose = INVALID_HANDLE_VALUE; |
| michael@0 | 73 | if (DuplicateHandle(hProcess, hRemotePipe, ::GetCurrentProcess(), |
| michael@0 | 74 | &toClose, 0, FALSE, |
| michael@0 | 75 | DUPLICATE_CLOSE_SOURCE | DUPLICATE_SAME_ACCESS)) { |
| michael@0 | 76 | CloseHandle(toClose); |
| michael@0 | 77 | return NS_OK; |
| michael@0 | 78 | } |
| michael@0 | 79 | } |
| michael@0 | 80 | |
| michael@0 | 81 | return NS_OK; |
| michael@0 | 82 | } |
| michael@0 | 83 | |
| michael@0 | 84 | } // namespace mozilla |
