1 files changed, 103 insertions, 0 deletions
diff --git a/dom/media/gmp/GMPProcessParent.h b/dom/media/gmp/GMPProcessParent.h
new file mode 100644
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+++ b/dom/media/gmp/GMPProcessParent.h
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=4 et :
+ * 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/. */
+
+#ifndef GMPProcessParent_h
+#define GMPProcessParent_h 1
+
+#include "mozilla/Attributes.h"
+#include "base/basictypes.h"
+#include "base/file_path.h"
+#include "base/thread.h"
+#include "chrome/common/child_process_host.h"
+#include "mozilla/ipc/GeckoChildProcessHost.h"
+#include "nsIFile.h"
+
+class nsIRunnable;
+
+namespace mozilla::gmp {
+
+class GMPProcessParent final : public mozilla::ipc::GeckoChildProcessHost {
+ public:
+  explicit GMPProcessParent(const std::string& aGMPPath);
+
+  // Synchronously launch the plugin process. If the process fails to launch
+  // after timeoutMs, this method will return false.
+  bool Launch(int32_t aTimeoutMs);
+
+  void Delete(nsCOMPtr<nsIRunnable> aCallback = nullptr);
+
+  bool CanShutdown() override { return true; }
+  const std::string& GetPluginFilePath() { return mGMPPath; }
+
+#if defined(XP_MACOSX) && defined(MOZ_SANDBOX)
+  // Init static members on the main thread
+  static void InitStaticMainThread();
+
+  // Read prefs and environment variables to determine
+  // when and if to start the Mac sandbox for the child
+  // process. Starting the sandbox at launch is the new
+  // preferred method. Code to support starting the sandbox
+  // later at plugin start time should be removed once
+  // starting at launch is stable and shipping.
+  bool IsMacSandboxLaunchEnabled() override;
+
+  // For process sandboxing purposes, set whether or not this
+  // instance of the GMP process requires access to the macOS
+  // window server. At present, Widevine requires window server
+  // access, but OpenH264 decoding does not.
+  void SetRequiresWindowServer(bool aRequiresWindowServer);
+
+  // Return the sandbox type to be used with this process type.
+  static MacSandboxType GetMacSandboxType() { return MacSandboxType_GMP; };
+#endif
+
+  using mozilla::ipc::GeckoChildProcessHost::GetChannel;
+  using mozilla::ipc::GeckoChildProcessHost::GetChildProcessHandle;
+
+ private:
+  ~GMPProcessParent();
+
+  void DoDelete();
+
+  std::string mGMPPath;
+  nsCOMPtr<nsIRunnable> mDeletedCallback;
+
+#if defined(XP_MACOSX) && defined(MOZ_SANDBOX)
+  // Indicates whether we'll start the Mac GMP sandbox during
+  // process launch (earlyinit) which is the new preferred method
+  // or later in the process lifetime.
+  static bool sLaunchWithMacSandbox;
+
+  // Whether or not Mac sandbox violation logging is enabled.
+  static bool sMacSandboxGMPLogging;
+
+  // Override so we can set GMP-specific sandbox parameters
+  bool FillMacSandboxInfo(MacSandboxInfo& aInfo) override;
+
+  // Controls whether or not the sandbox will be configured with
+  // window service access.
+  bool mRequiresWindowServer;
+
+#  if defined(DEBUG)
+  // Used to assert InitStaticMainThread() is called before the constructor.
+  static bool sIsMainThreadInitDone;
+#  endif
+#endif
+
+  // For normalizing paths to be compatible with sandboxing.
+  // We use normalized paths to generate the sandbox ruleset. Once
+  // the sandbox has been started, resolving symlinks that point to
+  // allowed directories could require reading paths not allowed by
+  // the sandbox, so we should only attempt to load plugin libraries
+  // using normalized paths.
+  static nsresult NormalizePath(const char* aPath, PathString& aNormalizedPath);
+
+  DISALLOW_COPY_AND_ASSIGN(GMPProcessParent);
+};
+
+}  // namespace mozilla::gmp
+
+#endif  // ifndef GMPProcessParent_h