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78 lines
2.6 KiB
C++
78 lines
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "InjectCrashReporter.h"
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#include "nsDirectoryServiceUtils.h"
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#include "nsDirectoryServiceDefs.h"
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#include "windows/crash_generation/crash_generation_client.h"
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#include "nsExceptionHandler.h"
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#include "LoadLibraryRemote.h"
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#include "nsWindowsHelpers.h"
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using CrashReporter::GetChildNotificationPipe;
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using google_breakpad::CrashGenerationClient;
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namespace mozilla {
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InjectCrashRunnable::InjectCrashRunnable(DWORD pid)
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: Runnable("InjectCrashRunnable"), mPID(pid) {
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nsCOMPtr<nsIFile> dll;
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nsresult rv = NS_GetSpecialDirectory(NS_GRE_DIR, getter_AddRefs(dll));
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if (NS_SUCCEEDED(rv)) {
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dll->Append(u"breakpadinjector.dll"_ns);
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dll->GetPath(mInjectorPath);
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}
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}
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NS_IMETHODIMP
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InjectCrashRunnable::Run() {
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if (mInjectorPath.IsEmpty()) return NS_OK;
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nsAutoHandle hProcess(OpenProcess(
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PROCESS_CREATE_THREAD | PROCESS_QUERY_INFORMATION | PROCESS_DUP_HANDLE |
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PROCESS_VM_OPERATION | PROCESS_VM_WRITE | PROCESS_VM_READ,
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FALSE, mPID));
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if (!hProcess) {
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NS_WARNING(
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"Unable to open remote process handle for crashreporter injection.");
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return NS_OK;
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}
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void* proc =
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LoadRemoteLibraryAndGetAddress(hProcess, mInjectorPath.get(), "Start");
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if (!proc) {
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NS_WARNING("Unable to inject crashreporter DLL.");
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return NS_OK;
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}
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HANDLE hRemotePipe = CrashGenerationClient::DuplicatePipeToClientProcess(
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NS_ConvertASCIItoUTF16(GetChildNotificationPipe()).get(), hProcess);
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if (INVALID_HANDLE_VALUE == hRemotePipe) {
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NS_WARNING("Unable to duplicate crash reporter pipe to process.");
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return NS_OK;
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}
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nsAutoHandle hThread(CreateRemoteThread(hProcess, nullptr, 0,
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(LPTHREAD_START_ROUTINE)proc,
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(void*)hRemotePipe, 0, nullptr));
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if (!hThread) {
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NS_WARNING("Unable to CreateRemoteThread");
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// We have to close the remote pipe or else our crash generation client
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// will be stuck unable to accept other remote requests.
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HANDLE toClose = INVALID_HANDLE_VALUE;
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if (DuplicateHandle(hProcess, hRemotePipe, ::GetCurrentProcess(), &toClose,
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0, FALSE,
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DUPLICATE_CLOSE_SOURCE | DUPLICATE_SAME_ACCESS)) {
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CloseHandle(toClose);
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return NS_OK;
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}
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}
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return NS_OK;
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}
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} // namespace mozilla
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