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