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-rw-r--r--netwerk/ipc/SocketProcessHost.cpp319
1 files changed, 319 insertions, 0 deletions
diff --git a/netwerk/ipc/SocketProcessHost.cpp b/netwerk/ipc/SocketProcessHost.cpp
new file mode 100644
index 0000000000..931612d07c
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+++ b/netwerk/ipc/SocketProcessHost.cpp
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+/* -*- Mode: C++; tab-width: 2; 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 "SocketProcessHost.h"
+
+#include "SocketProcessParent.h"
+#include "mozilla/dom/ContentParent.h"
+#include "mozilla/ipc/FileDescriptor.h"
+#include "mozilla/ipc/ProcessUtils.h"
+#include "nsAppRunner.h"
+#include "nsIOService.h"
+#include "nsIObserverService.h"
+#include "ProfilerParent.h"
+#include "nsNetUtil.h"
+#include "mozilla/ipc/Endpoint.h"
+#include "mozilla/ipc/ProcessChild.h"
+
+#if defined(XP_LINUX) && defined(MOZ_SANDBOX)
+# include "mozilla/SandboxBroker.h"
+# include "mozilla/SandboxBrokerPolicyFactory.h"
+# include "mozilla/SandboxSettings.h"
+#endif
+
+#if defined(XP_MACOSX) && defined(MOZ_SANDBOX)
+# include "mozilla/Sandbox.h"
+#endif
+
+#if defined(XP_WIN)
+# include "mozilla/WinDllServices.h"
+#endif
+
+using namespace mozilla::ipc;
+
+namespace mozilla {
+namespace net {
+
+#if defined(XP_MACOSX) && defined(MOZ_SANDBOX)
+bool SocketProcessHost::sLaunchWithMacSandbox = false;
+#endif
+
+SocketProcessHost::SocketProcessHost(Listener* aListener)
+ : GeckoChildProcessHost(GeckoProcessType_Socket),
+ mListener(aListener),
+ mTaskFactory(Some(this)),
+ mLaunchPhase(LaunchPhase::Unlaunched),
+ mShutdownRequested(false),
+ mChannelClosed(false) {
+ MOZ_ASSERT(NS_IsMainThread());
+ MOZ_COUNT_CTOR(SocketProcessHost);
+#if defined(XP_MACOSX) && defined(MOZ_SANDBOX)
+ if (!sLaunchWithMacSandbox) {
+ sLaunchWithMacSandbox =
+ (PR_GetEnv("MOZ_DISABLE_SOCKET_PROCESS_SANDBOX") == nullptr);
+ }
+ mDisableOSActivityMode = sLaunchWithMacSandbox;
+#endif
+}
+
+SocketProcessHost::~SocketProcessHost() { MOZ_COUNT_DTOR(SocketProcessHost); }
+
+bool SocketProcessHost::Launch() {
+ MOZ_ASSERT(mLaunchPhase == LaunchPhase::Unlaunched);
+ MOZ_ASSERT(!mSocketProcessParent);
+ MOZ_ASSERT(NS_IsMainThread());
+
+ std::vector<std::string> extraArgs;
+ ProcessChild::AddPlatformBuildID(extraArgs);
+
+ SharedPreferenceSerializer prefSerializer;
+ if (!prefSerializer.SerializeToSharedMemory(GeckoProcessType_VR,
+ /* remoteType */ ""_ns)) {
+ return false;
+ }
+ prefSerializer.AddSharedPrefCmdLineArgs(*this, extraArgs);
+
+ mLaunchPhase = LaunchPhase::Waiting;
+ if (!GeckoChildProcessHost::LaunchAndWaitForProcessHandle(extraArgs)) {
+ mLaunchPhase = LaunchPhase::Complete;
+ return false;
+ }
+
+ return true;
+}
+
+static void HandleErrorAfterDestroy(
+ RefPtr<SocketProcessHost::Listener>&& aListener) {
+ if (!aListener) {
+ return;
+ }
+
+ NS_DispatchToMainThread(NS_NewRunnableFunction(
+ "HandleErrorAfterDestroy", [listener = std::move(aListener)]() {
+ listener->OnProcessLaunchComplete(nullptr, false);
+ }));
+}
+
+void SocketProcessHost::OnChannelConnected(base::ProcessId peer_pid) {
+ MOZ_ASSERT(!NS_IsMainThread());
+
+ GeckoChildProcessHost::OnChannelConnected(peer_pid);
+
+ // Post a task to the main thread. Take the lock because mTaskFactory is not
+ // thread-safe.
+ RefPtr<Runnable> runnable;
+ {
+ MonitorAutoLock lock(mMonitor);
+ if (!mTaskFactory) {
+ HandleErrorAfterDestroy(std::move(mListener));
+ return;
+ }
+ runnable =
+ (*mTaskFactory)
+ .NewRunnableMethod(&SocketProcessHost::OnChannelConnectedTask);
+ }
+ NS_DispatchToMainThread(runnable);
+}
+
+void SocketProcessHost::OnChannelError() {
+ MOZ_ASSERT(!NS_IsMainThread());
+ GeckoChildProcessHost::OnChannelError();
+
+ // Post a task to the main thread. Take the lock because mTaskFactory is not
+ // thread-safe.
+ RefPtr<Runnable> runnable;
+ {
+ MonitorAutoLock lock(mMonitor);
+ if (!mTaskFactory) {
+ HandleErrorAfterDestroy(std::move(mListener));
+ return;
+ }
+ runnable = (*mTaskFactory)
+ .NewRunnableMethod(&SocketProcessHost::OnChannelErrorTask);
+ }
+ NS_DispatchToMainThread(runnable);
+}
+
+void SocketProcessHost::OnChannelConnectedTask() {
+ MOZ_ASSERT(NS_IsMainThread());
+
+ if (mLaunchPhase == LaunchPhase::Waiting) {
+ InitAfterConnect(true);
+ }
+}
+
+void SocketProcessHost::OnChannelErrorTask() {
+ MOZ_ASSERT(NS_IsMainThread());
+
+ if (mLaunchPhase == LaunchPhase::Waiting) {
+ InitAfterConnect(false);
+ }
+}
+
+void SocketProcessHost::InitAfterConnect(bool aSucceeded) {
+ MOZ_ASSERT(mLaunchPhase == LaunchPhase::Waiting);
+ MOZ_ASSERT(!mSocketProcessParent);
+ MOZ_ASSERT(NS_IsMainThread());
+
+ mLaunchPhase = LaunchPhase::Complete;
+ if (!aSucceeded) {
+ if (mListener) {
+ mListener->OnProcessLaunchComplete(this, false);
+ }
+ return;
+ }
+
+ mSocketProcessParent = MakeRefPtr<SocketProcessParent>(this);
+ DebugOnly<bool> rv = TakeInitialEndpoint().Bind(mSocketProcessParent.get());
+ MOZ_ASSERT(rv);
+
+ SocketPorcessInitAttributes attributes;
+ nsCOMPtr<nsIIOService> ioService(do_GetIOService());
+ MOZ_ASSERT(ioService, "No IO service?");
+ DebugOnly<nsresult> result = ioService->GetOffline(&attributes.mOffline());
+ MOZ_ASSERT(NS_SUCCEEDED(result), "Failed getting offline?");
+ result = ioService->GetConnectivity(&attributes.mConnectivity());
+ MOZ_ASSERT(NS_SUCCEEDED(result), "Failed getting connectivity?");
+
+ attributes.mInitSandbox() = false;
+
+#if defined(XP_WIN)
+ RefPtr<DllServices> dllSvc(DllServices::Get());
+ attributes.mIsReadyForBackgroundProcessing() =
+ dllSvc->IsReadyForBackgroundProcessing();
+#endif
+
+#if defined(XP_LINUX) && defined(MOZ_SANDBOX)
+ if (GetEffectiveSocketProcessSandboxLevel() > 0) {
+ auto policy = SandboxBrokerPolicyFactory::GetSocketProcessPolicy(
+ GetActor()->OtherPid());
+ if (policy != nullptr) {
+ attributes.mSandboxBroker() = Some(FileDescriptor());
+ mSandboxBroker =
+ SandboxBroker::Create(std::move(policy), GetActor()->OtherPid(),
+ attributes.mSandboxBroker().ref());
+ // This is unlikely to fail and probably indicates OS resource
+ // exhaustion.
+ Unused << NS_WARN_IF(mSandboxBroker == nullptr);
+ MOZ_ASSERT(attributes.mSandboxBroker().ref().IsValid());
+ }
+ attributes.mInitSandbox() = true;
+ }
+#endif // XP_LINUX && MOZ_SANDBOX
+
+ Unused << GetActor()->SendInit(attributes);
+
+ Unused << GetActor()->SendInitProfiler(
+ ProfilerParent::CreateForProcess(GetActor()->OtherPid()));
+
+ if (mListener) {
+ mListener->OnProcessLaunchComplete(this, true);
+ }
+}
+
+void SocketProcessHost::Shutdown() {
+ MOZ_ASSERT(!mShutdownRequested);
+ MOZ_ASSERT(NS_IsMainThread());
+
+ mListener = nullptr;
+
+ if (mSocketProcessParent) {
+ // OnChannelClosed uses this to check if the shutdown was expected or
+ // unexpected.
+ mShutdownRequested = true;
+
+ // The channel might already be closed if we got here unexpectedly.
+ if (!mChannelClosed) {
+ mSocketProcessParent->Close();
+ }
+
+ return;
+ }
+
+ DestroyProcess();
+}
+
+void SocketProcessHost::OnChannelClosed() {
+ MOZ_ASSERT(NS_IsMainThread());
+
+ mChannelClosed = true;
+
+ if (!mShutdownRequested && mListener) {
+ // This is an unclean shutdown. Notify our listener that we're going away.
+ mListener->OnProcessUnexpectedShutdown(this);
+ } else {
+ DestroyProcess();
+ }
+
+ // Release the actor.
+ SocketProcessParent::Destroy(std::move(mSocketProcessParent));
+ MOZ_ASSERT(!mSocketProcessParent);
+}
+
+void SocketProcessHost::DestroyProcess() {
+ {
+ MonitorAutoLock lock(mMonitor);
+ mTaskFactory.reset();
+ }
+
+ GetCurrentSerialEventTarget()->Dispatch(NS_NewRunnableFunction(
+ "DestroySocketProcessRunnable", [this] { Destroy(); }));
+}
+
+#if defined(XP_MACOSX) && defined(MOZ_SANDBOX)
+bool SocketProcessHost::FillMacSandboxInfo(MacSandboxInfo& aInfo) {
+ GeckoChildProcessHost::FillMacSandboxInfo(aInfo);
+ if (!aInfo.shouldLog && PR_GetEnv("MOZ_SANDBOX_SOCKET_PROCESS_LOGGING")) {
+ aInfo.shouldLog = true;
+ }
+ return true;
+}
+
+/* static */
+MacSandboxType SocketProcessHost::GetMacSandboxType() {
+ return MacSandboxType_Socket;
+}
+#endif
+
+//-----------------------------------------------------------------------------
+// SocketProcessMemoryReporter
+//-----------------------------------------------------------------------------
+
+bool SocketProcessMemoryReporter::IsAlive() const {
+ MOZ_ASSERT(gIOService);
+
+ if (!gIOService->mSocketProcess) {
+ return false;
+ }
+
+ return gIOService->mSocketProcess->IsConnected();
+}
+
+bool SocketProcessMemoryReporter::SendRequestMemoryReport(
+ const uint32_t& aGeneration, const bool& aAnonymize,
+ const bool& aMinimizeMemoryUsage,
+ const Maybe<ipc::FileDescriptor>& aDMDFile) {
+ MOZ_ASSERT(gIOService);
+
+ if (!gIOService->mSocketProcess) {
+ return false;
+ }
+
+ SocketProcessParent* actor = gIOService->mSocketProcess->GetActor();
+ if (!actor) {
+ return false;
+ }
+
+ return actor->SendRequestMemoryReport(aGeneration, aAnonymize,
+ aMinimizeMemoryUsage, aDMDFile);
+}
+
+int32_t SocketProcessMemoryReporter::Pid() const {
+ MOZ_ASSERT(gIOService);
+ return gIOService->SocketProcessPid();
+}
+
+} // namespace net
+} // namespace mozilla
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