1 files changed, 83 insertions, 0 deletions
diff --git a/security/sandbox/win/src/remotesandboxbroker/RemoteSandboxBrokerParent.cpp b/security/sandbox/win/src/remotesandboxbroker/RemoteSandboxBrokerParent.cpp
new file mode 100644
index 0000000000..7306f4f7bf
--- /dev/null
+++ b/security/sandbox/win/src/remotesandboxbroker/RemoteSandboxBrokerParent.cpp
@@ -0,0 +1,83 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 https://mozilla.org/MPL/2.0/. */
+
+#include "RemoteSandboxBrokerParent.h"
+#include "RemoteSandboxBrokerProcessParent.h"
+#include "mozilla/Telemetry.h"
+#include <windows.h>
+
+namespace mozilla {
+
+RefPtr<GenericPromise> RemoteSandboxBrokerParent::Launch(
+    uint32_t aLaunchArch, const nsTArray<uint64_t>& aHandlesToShare,
+    nsISerialEventTarget* aThread) {
+  MOZ_ASSERT(!mProcess);
+  if (mProcess) {
+    // Don't re-init.
+    return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+  }
+
+  mProcess = new RemoteSandboxBrokerProcessParent();
+#ifdef ALLOW_GECKO_CHILD_PROCESS_ARCH
+  mProcess->SetLaunchArchitecture(aLaunchArch);
+#endif
+  for (uint64_t handle : aHandlesToShare) {
+    mProcess->AddHandleToShare(HANDLE(handle));
+  }
+
+  auto resolve = [self = RefPtr{this}](base::ProcessHandle handle) {
+    self->mOpened = self->mProcess->TakeInitialEndpoint().Bind(self);
+    if (!self->mOpened) {
+      self->mProcess->Destroy();
+      self->mProcess = nullptr;
+      return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+    }
+    return GenericPromise::CreateAndResolve(true, __func__);
+  };
+
+  auto reject = [self = RefPtr{this}]() {
+    NS_ERROR("failed to launch child in the parent");
+    if (self->mProcess) {
+      self->mProcess->Destroy();
+      self->mProcess = nullptr;
+    }
+    return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+  };
+
+  return mProcess->AsyncLaunch()->Then(aThread, __func__, std::move(resolve),
+                                       std::move(reject));
+}
+
+bool RemoteSandboxBrokerParent::DuplicateFromLauncher(HANDLE aLauncherHandle,
+                                                      LPHANDLE aOurHandle) {
+  return ::DuplicateHandle(mProcess->GetChildProcessHandle(), aLauncherHandle,
+                           ::GetCurrentProcess(), aOurHandle, 0, false,
+                           DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);
+}
+
+void RemoteSandboxBrokerParent::ActorDestroy(ActorDestroyReason aWhy) {
+  if (AbnormalShutdown == aWhy) {
+    Telemetry::Accumulate(Telemetry::SUBPROCESS_ABNORMAL_ABORT,
+                          nsDependentCString(XRE_GeckoProcessTypeToString(
+                              GeckoProcessType_RemoteSandboxBroker)),
+                          1);
+    GenerateCrashReport(OtherPid());
+  }
+  Shutdown();
+}
+
+void RemoteSandboxBrokerParent::Shutdown() {
+  if (mOpened) {
+    mOpened = false;
+    Close();
+  }
+  if (mProcess) {
+    mProcess->Destroy();
+    mProcess = nullptr;
+  }
+}
+
+}  // namespace mozilla