The Tor Browser: hal/sandbox/SandboxHal.cpp@7e26c7da4463 (annotated)

hal/sandbox/SandboxHal.cpp@7e26c7da4463 (annotated)

hal/sandbox/SandboxHal.cpp

Wed, 31 Dec 2014 06:55:50 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:55:50 +0100
changeset 2: 7e26c7da4463
permissions: -rw-r--r--

Added tag UPSTREAM_283F7C6 for changeset ca08bd8f51b2

 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* vim: set sw=2 ts=8 et ft=cpp : */
 /* 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 "Hal.h"
 #include "mozilla/AppProcessChecker.h"
 #include "mozilla/dom/ContentChild.h"
 #include "mozilla/dom/ContentParent.h"
 #include "mozilla/hal_sandbox/PHalChild.h"
 #include "mozilla/hal_sandbox/PHalParent.h"
 #include "mozilla/dom/TabParent.h"
 #include "mozilla/dom/TabChild.h"
 #include "mozilla/dom/battery/Types.h"
 #include "mozilla/dom/network/Types.h"
 #include "mozilla/dom/ScreenOrientation.h"
 #include "mozilla/Observer.h"
 #include "mozilla/unused.h"
 #include "WindowIdentifier.h"
 using namespace mozilla;
 using namespace mozilla::dom;
 using namespace mozilla::hal;
 namespace mozilla {
 namespace hal_sandbox {
 static bool sHalChildDestroyed = false;
 bool
 HalChildDestroyed()
 {
   return sHalChildDestroyed;
 }
 static PHalChild* sHal;
 static PHalChild*
 Hal()
 {
   if (!sHal) {
     sHal = ContentChild::GetSingleton()->SendPHalConstructor();
   }
   return sHal;
 }
 void
 Vibrate(const nsTArray<uint32_t>& pattern, const WindowIdentifier &id)
 {
   HAL_LOG(("Vibrate: Sending to parent process."));
   AutoInfallibleTArray<uint32_t, 8> p(pattern);
   WindowIdentifier newID(id);
   newID.AppendProcessID();
   Hal()->SendVibrate(p, newID.AsArray(), TabChild::GetFrom(newID.GetWindow()));
 }
 void
 CancelVibrate(const WindowIdentifier &id)
 {
   HAL_LOG(("CancelVibrate: Sending to parent process."));
   WindowIdentifier newID(id);
   newID.AppendProcessID();
   Hal()->SendCancelVibrate(newID.AsArray(), TabChild::GetFrom(newID.GetWindow()));
 }
 void
 EnableBatteryNotifications()
 {
   Hal()->SendEnableBatteryNotifications();
 }
 void
 DisableBatteryNotifications()
 {
   Hal()->SendDisableBatteryNotifications();
 }
 void
 GetCurrentBatteryInformation(BatteryInformation* aBatteryInfo)
 {
   Hal()->SendGetCurrentBatteryInformation(aBatteryInfo);
 }
 void
 EnableNetworkNotifications()
 {
   Hal()->SendEnableNetworkNotifications();
 }
 void
 DisableNetworkNotifications()
 {
   Hal()->SendDisableNetworkNotifications();
 }
 void
 GetCurrentNetworkInformation(NetworkInformation* aNetworkInfo)
 {
   Hal()->SendGetCurrentNetworkInformation(aNetworkInfo);
 }
 void
 EnableScreenConfigurationNotifications()
 {
   Hal()->SendEnableScreenConfigurationNotifications();
 }
 void
 DisableScreenConfigurationNotifications()
 {
   Hal()->SendDisableScreenConfigurationNotifications();
 }
 void
 GetCurrentScreenConfiguration(ScreenConfiguration* aScreenConfiguration)
 {
   Hal()->SendGetCurrentScreenConfiguration(aScreenConfiguration);
 }
 bool
 LockScreenOrientation(const dom::ScreenOrientation& aOrientation)
 {
   bool allowed;
   Hal()->SendLockScreenOrientation(aOrientation, &allowed);
   return allowed;
 }
 void
 UnlockScreenOrientation()
 {
   Hal()->SendUnlockScreenOrientation();
 }
 bool
 GetScreenEnabled()
 {
   bool enabled = false;
   Hal()->SendGetScreenEnabled(&enabled);
   return enabled;
 }
 void
 SetScreenEnabled(bool enabled)
 {
   Hal()->SendSetScreenEnabled(enabled);
 }
 bool
 GetCpuSleepAllowed()
 {
   bool allowed = true;
   Hal()->SendGetCpuSleepAllowed(&allowed);
   return allowed;
 }
 void
 SetCpuSleepAllowed(bool allowed)
 {
   Hal()->SendSetCpuSleepAllowed(allowed);
 }
 double
 GetScreenBrightness()
 {
   double brightness = 0;
   Hal()->SendGetScreenBrightness(&brightness);
   return brightness;
 }
 void
 SetScreenBrightness(double brightness)
 {
   Hal()->SendSetScreenBrightness(brightness);
 }
 bool
 SetLight(hal::LightType light, const hal::LightConfiguration& aConfig)
 {
   bool status;
   Hal()->SendSetLight(light, aConfig, &status);
   return status;
 }
 bool
 GetLight(hal::LightType light, hal::LightConfiguration* aConfig)
 {
   bool status;
   Hal()->SendGetLight(light, aConfig, &status);
   return status;
 }
 void
 AdjustSystemClock(int64_t aDeltaMilliseconds)
 {
   Hal()->SendAdjustSystemClock(aDeltaMilliseconds);
 }
 void
 SetTimezone(const nsCString& aTimezoneSpec)
 {
   Hal()->SendSetTimezone(nsCString(aTimezoneSpec));
 }
 nsCString
 GetTimezone()
 {
   nsCString timezone;
   Hal()->SendGetTimezone(&timezone);
   return timezone;
 }
 int32_t
 GetTimezoneOffset()
 {
   int32_t timezoneOffset;
   Hal()->SendGetTimezoneOffset(&timezoneOffset);
   return timezoneOffset;
 }
 void
 EnableSystemClockChangeNotifications()
 {
   Hal()->SendEnableSystemClockChangeNotifications();
 }
 void
 DisableSystemClockChangeNotifications()
 {
   Hal()->SendDisableSystemClockChangeNotifications();
 }
 void
 EnableSystemTimezoneChangeNotifications()
 {
   Hal()->SendEnableSystemTimezoneChangeNotifications();
 }
 void
 DisableSystemTimezoneChangeNotifications()
 {
   Hal()->SendDisableSystemTimezoneChangeNotifications();
 }
 void
 Reboot()
 {
   NS_RUNTIMEABORT("Reboot() can't be called from sandboxed contexts.");
 }
 void
 PowerOff()
 {
   NS_RUNTIMEABORT("PowerOff() can't be called from sandboxed contexts.");
 }
 void
 StartForceQuitWatchdog(ShutdownMode aMode, int32_t aTimeoutSecs)
 {
   NS_RUNTIMEABORT("StartForceQuitWatchdog() can't be called from sandboxed contexts.");
 }
 void
 EnableSensorNotifications(SensorType aSensor) {
   Hal()->SendEnableSensorNotifications(aSensor);
 }
 void
 DisableSensorNotifications(SensorType aSensor) {
   Hal()->SendDisableSensorNotifications(aSensor);
 }
 //TODO: bug 852944 - IPC implementations of these
 void StartMonitoringGamepadStatus()
 {}
 void StopMonitoringGamepadStatus()
 {}
 void
 EnableWakeLockNotifications()
 {
   Hal()->SendEnableWakeLockNotifications();
 }
 void
 DisableWakeLockNotifications()
 {
   Hal()->SendDisableWakeLockNotifications();
 }
 void
 ModifyWakeLock(const nsAString &aTopic,
                WakeLockControl aLockAdjust,
                WakeLockControl aHiddenAdjust,
                uint64_t aProcessID)
 {
   MOZ_ASSERT(aProcessID != CONTENT_PROCESS_ID_UNKNOWN);
   Hal()->SendModifyWakeLock(nsString(aTopic), aLockAdjust, aHiddenAdjust, aProcessID);
 }
 void
 GetWakeLockInfo(const nsAString &aTopic, WakeLockInformation *aWakeLockInfo)
 {
   Hal()->SendGetWakeLockInfo(nsString(aTopic), aWakeLockInfo);
 }
 void
 EnableSwitchNotifications(SwitchDevice aDevice)
 {
   Hal()->SendEnableSwitchNotifications(aDevice);
 }
 void
 DisableSwitchNotifications(SwitchDevice aDevice)
 {
   Hal()->SendDisableSwitchNotifications(aDevice);
 }
 SwitchState
 GetCurrentSwitchState(SwitchDevice aDevice)
 {
   SwitchState state;
   Hal()->SendGetCurrentSwitchState(aDevice, &state);
   return state;
 }
 void
 NotifySwitchStateFromInputDevice(SwitchDevice aDevice, SwitchState aState)
 {
   Hal()->SendNotifySwitchStateFromInputDevice(aDevice, aState);
 }
 bool
 EnableAlarm()
 {
   NS_RUNTIMEABORT("Alarms can't be programmed from sandboxed contexts.  Yet.");
   return false;
 }
 void
 DisableAlarm()
 {
   NS_RUNTIMEABORT("Alarms can't be programmed from sandboxed contexts.  Yet.");
 }
 bool
 SetAlarm(int32_t aSeconds, int32_t aNanoseconds)
 {
   NS_RUNTIMEABORT("Alarms can't be programmed from sandboxed contexts.  Yet.");
   return false;
 }
 void
 SetProcessPriority(int aPid,
                    ProcessPriority aPriority,
                    ProcessCPUPriority aCPUPriority,
                    uint32_t aBackgroundLRU)
 {
   NS_RUNTIMEABORT("Only the main process may set processes' priorities.");
 }
 void
 EnableFMRadio(const hal::FMRadioSettings& aSettings)
 {
   NS_RUNTIMEABORT("FM radio cannot be called from sandboxed contexts.");
 }
 void
 DisableFMRadio()
 {
   NS_RUNTIMEABORT("FM radio cannot be called from sandboxed contexts.");
 }
 void
 FMRadioSeek(const hal::FMRadioSeekDirection& aDirection)
 {
   NS_RUNTIMEABORT("FM radio cannot be called from sandboxed contexts.");
 }
 void
 GetFMRadioSettings(FMRadioSettings* aSettings)
 {
   NS_RUNTIMEABORT("FM radio cannot be called from sandboxed contexts.");
 }
 void
 SetFMRadioFrequency(const uint32_t aFrequency)
 {
   NS_RUNTIMEABORT("FM radio cannot be called from sandboxed contexts.");
 }
 uint32_t
 GetFMRadioFrequency()
 {
   NS_RUNTIMEABORT("FM radio cannot be called from sandboxed contexts.");
   return 0;
 }
 bool
 IsFMRadioOn()
 {
   NS_RUNTIMEABORT("FM radio cannot be called from sandboxed contexts.");
   return false;
 }
 uint32_t
 GetFMRadioSignalStrength()
 {
   NS_RUNTIMEABORT("FM radio cannot be called from sandboxed contexts.");
   return 0;
 }
 void
 CancelFMRadioSeek()
 {
   NS_RUNTIMEABORT("FM radio cannot be called from sandboxed contexts.");
 }
 void
 FactoryReset()
 {
   Hal()->SendFactoryReset();
 }
 void
 StartDiskSpaceWatcher()
 {
   NS_RUNTIMEABORT("StartDiskSpaceWatcher() can't be called from sandboxed contexts.");
 }
 void
 StopDiskSpaceWatcher()
 {
   NS_RUNTIMEABORT("StopDiskSpaceWatcher() can't be called from sandboxed contexts.");
 }
 class HalParent : public PHalParent
                 , public BatteryObserver
                 , public NetworkObserver
                 , public ISensorObserver
                 , public WakeLockObserver
                 , public ScreenConfigurationObserver
                 , public SwitchObserver
                 , public SystemClockChangeObserver
                 , public SystemTimezoneChangeObserver
 {
 public:
   virtual void
   ActorDestroy(ActorDestroyReason aWhy) MOZ_OVERRIDE
   {
     // NB: you *must* unconditionally unregister your observer here,
     // if it *may* be registered below.
     hal::UnregisterBatteryObserver(this);
     hal::UnregisterNetworkObserver(this);
     hal::UnregisterScreenConfigurationObserver(this);
     for (int32_t sensor = SENSOR_UNKNOWN + 1;
          sensor < NUM_SENSOR_TYPE; ++sensor) {
       hal::UnregisterSensorObserver(SensorType(sensor), this);
     }
     hal::UnregisterWakeLockObserver(this);
     hal::UnregisterSystemClockChangeObserver(this);
     hal::UnregisterSystemTimezoneChangeObserver(this);
     for (int32_t switchDevice = SWITCH_DEVICE_UNKNOWN + 1;
          switchDevice < NUM_SWITCH_DEVICE; ++switchDevice) {
       hal::UnregisterSwitchObserver(SwitchDevice(switchDevice), this);
     }
   }
   virtual bool
   RecvVibrate(const InfallibleTArray<unsigned int>& pattern,
               const InfallibleTArray<uint64_t> &id,
               PBrowserParent *browserParent) MOZ_OVERRIDE
   {
     // We give all content vibration permission.
     TabParent *tabParent = static_cast<TabParent*>(browserParent);
     nsCOMPtr<nsIDOMWindow> window =
       do_QueryInterface(tabParent->GetBrowserDOMWindow());
     WindowIdentifier newID(id, window);
     hal::Vibrate(pattern, newID);
     return true;
   }
   virtual bool
   RecvCancelVibrate(const InfallibleTArray<uint64_t> &id,
                     PBrowserParent *browserParent) MOZ_OVERRIDE
   {
     TabParent *tabParent = static_cast<TabParent*>(browserParent);
     nsCOMPtr<nsIDOMWindow> window =
       do_QueryInterface(tabParent->GetBrowserDOMWindow());
     WindowIdentifier newID(id, window);
     hal::CancelVibrate(newID);
     return true;
   }
   virtual bool
   RecvEnableBatteryNotifications() MOZ_OVERRIDE {
     // We give all content battery-status permission.
     hal::RegisterBatteryObserver(this);
     return true;
   }
   virtual bool
   RecvDisableBatteryNotifications() MOZ_OVERRIDE {
     hal::UnregisterBatteryObserver(this);
     return true;
   }
   virtual bool
   RecvGetCurrentBatteryInformation(BatteryInformation* aBatteryInfo) MOZ_OVERRIDE {
     // We give all content battery-status permission.
     hal::GetCurrentBatteryInformation(aBatteryInfo);
     return true;
   }
   void Notify(const BatteryInformation& aBatteryInfo) MOZ_OVERRIDE {
     unused << SendNotifyBatteryChange(aBatteryInfo);
   }
   virtual bool
   RecvEnableNetworkNotifications() MOZ_OVERRIDE {
     // We give all content access to this network-status information.
     hal::RegisterNetworkObserver(this);
     return true;
   }
   virtual bool
   RecvDisableNetworkNotifications() MOZ_OVERRIDE {
     hal::UnregisterNetworkObserver(this);
     return true;
   }
   virtual bool
   RecvGetCurrentNetworkInformation(NetworkInformation* aNetworkInfo) MOZ_OVERRIDE {
     hal::GetCurrentNetworkInformation(aNetworkInfo);
     return true;
   }
   void Notify(const NetworkInformation& aNetworkInfo) {
     unused << SendNotifyNetworkChange(aNetworkInfo);
   }
   virtual bool
   RecvEnableScreenConfigurationNotifications() MOZ_OVERRIDE {
     // Screen configuration is used to implement CSS and DOM
     // properties, so all content already has access to this.
     hal::RegisterScreenConfigurationObserver(this);
     return true;
   }
   virtual bool
   RecvDisableScreenConfigurationNotifications() MOZ_OVERRIDE {
     hal::UnregisterScreenConfigurationObserver(this);
     return true;
   }
   virtual bool
   RecvGetCurrentScreenConfiguration(ScreenConfiguration* aScreenConfiguration) MOZ_OVERRIDE {
     hal::GetCurrentScreenConfiguration(aScreenConfiguration);
     return true;
   }
   virtual bool
   RecvLockScreenOrientation(const dom::ScreenOrientation& aOrientation, bool* aAllowed) MOZ_OVERRIDE
   {
     // FIXME/bug 777980: unprivileged content may only lock
     // orientation while fullscreen.  We should check whether the
     // request comes from an actor in a process that might be
     // fullscreen.  We don't have that information currently.
     *aAllowed = hal::LockScreenOrientation(aOrientation);
     return true;
   }
   virtual bool
   RecvUnlockScreenOrientation() MOZ_OVERRIDE
   {
     hal::UnlockScreenOrientation();
     return true;
   }
   void Notify(const ScreenConfiguration& aScreenConfiguration) {
     unused << SendNotifyScreenConfigurationChange(aScreenConfiguration);
   }
   virtual bool
   RecvGetScreenEnabled(bool *enabled) MOZ_OVERRIDE
   {
     if (!AssertAppProcessPermission(this, "power")) {
       return false;
     }
     *enabled = hal::GetScreenEnabled();
     return true;
   }
   virtual bool
   RecvSetScreenEnabled(const bool &enabled) MOZ_OVERRIDE
   {
     if (!AssertAppProcessPermission(this, "power")) {
       return false;
     }
     hal::SetScreenEnabled(enabled);
     return true;
   }
   virtual bool
   RecvGetCpuSleepAllowed(bool *allowed) MOZ_OVERRIDE
   {
     if (!AssertAppProcessPermission(this, "power")) {
       return false;
     }
     *allowed = hal::GetCpuSleepAllowed();
     return true;
   }
   virtual bool
   RecvSetCpuSleepAllowed(const bool &allowed) MOZ_OVERRIDE
   {
     if (!AssertAppProcessPermission(this, "power")) {
       return false;
     }
     hal::SetCpuSleepAllowed(allowed);
     return true;
   }
   virtual bool
   RecvGetScreenBrightness(double *brightness) MOZ_OVERRIDE
   {
     if (!AssertAppProcessPermission(this, "power")) {
       return false;
     }
     *brightness = hal::GetScreenBrightness();
     return true;
   }
   virtual bool
   RecvSetScreenBrightness(const double &brightness) MOZ_OVERRIDE
   {
     if (!AssertAppProcessPermission(this, "power")) {
       return false;
     }
     hal::SetScreenBrightness(brightness);
     return true;
   }
   virtual bool
   RecvSetLight(const LightType& aLight,  const hal::LightConfiguration& aConfig, bool *status) MOZ_OVERRIDE
   {
     // XXX currently, the hardware key light and screen backlight are
     // controlled as a unit.  Those are set through the power API, and
     // there's no other way to poke lights currently, so we require
     // "power" privileges here.
     if (!AssertAppProcessPermission(this, "power")) {
       return false;
     }
     *status = hal::SetLight(aLight, aConfig);
     return true;
   }
   virtual bool
   RecvGetLight(const LightType& aLight, LightConfiguration* aConfig, bool* status) MOZ_OVERRIDE
   {
     if (!AssertAppProcessPermission(this, "power")) {
       return false;
     }
     *status = hal::GetLight(aLight, aConfig);
     return true;
   }
   virtual bool
   RecvAdjustSystemClock(const int64_t &aDeltaMilliseconds) MOZ_OVERRIDE
   {
     if (!AssertAppProcessPermission(this, "time")) {
       return false;
     }
     hal::AdjustSystemClock(aDeltaMilliseconds);
     return true;
   }
   virtual bool
   RecvSetTimezone(const nsCString& aTimezoneSpec) MOZ_OVERRIDE
   {
     if (!AssertAppProcessPermission(this, "time")) {
       return false;
     }
     hal::SetTimezone(aTimezoneSpec);
     return true;
   }
   virtual bool
   RecvGetTimezone(nsCString *aTimezoneSpec) MOZ_OVERRIDE
   {
     if (!AssertAppProcessPermission(this, "time")) {
       return false;
     }
     *aTimezoneSpec = hal::GetTimezone();
     return true;
   }
   virtual bool
   RecvGetTimezoneOffset(int32_t *aTimezoneOffset) MOZ_OVERRIDE
   {
     if (!AssertAppProcessPermission(this, "time")) {
       return false;
     }
     *aTimezoneOffset = hal::GetTimezoneOffset();
     return true;
   }
   virtual bool
   RecvEnableSystemClockChangeNotifications() MOZ_OVERRIDE
   {
     hal::RegisterSystemClockChangeObserver(this);
     return true;
   }
   virtual bool
   RecvDisableSystemClockChangeNotifications() MOZ_OVERRIDE
   {
     hal::UnregisterSystemClockChangeObserver(this);
     return true;
   }
   virtual bool
   RecvEnableSystemTimezoneChangeNotifications() MOZ_OVERRIDE
   {
     hal::RegisterSystemTimezoneChangeObserver(this);
     return true;
   }
   virtual bool
   RecvDisableSystemTimezoneChangeNotifications() MOZ_OVERRIDE
   {
     hal::UnregisterSystemTimezoneChangeObserver(this);
     return true;
   }
   virtual bool
   RecvEnableSensorNotifications(const SensorType &aSensor) MOZ_OVERRIDE {
     // We currently allow any content to register device-sensor
     // listeners.
     hal::RegisterSensorObserver(aSensor, this);
     return true;
   }
   virtual bool
   RecvDisableSensorNotifications(const SensorType &aSensor) MOZ_OVERRIDE {
     hal::UnregisterSensorObserver(aSensor, this);
     return true;
   }
   void Notify(const SensorData& aSensorData) {
     unused << SendNotifySensorChange(aSensorData);
   }
   virtual bool
   RecvModifyWakeLock(const nsString& aTopic,
                      const WakeLockControl& aLockAdjust,
                      const WakeLockControl& aHiddenAdjust,
                      const uint64_t& aProcessID) MOZ_OVERRIDE
   {
     MOZ_ASSERT(aProcessID != CONTENT_PROCESS_ID_UNKNOWN);
     // We allow arbitrary content to use wake locks.
     hal::ModifyWakeLock(aTopic, aLockAdjust, aHiddenAdjust, aProcessID);
     return true;
   }
   virtual bool
   RecvEnableWakeLockNotifications() MOZ_OVERRIDE
   {
     // We allow arbitrary content to use wake locks.
     hal::RegisterWakeLockObserver(this);
     return true;
   }
   virtual bool
   RecvDisableWakeLockNotifications() MOZ_OVERRIDE
   {
     hal::UnregisterWakeLockObserver(this);
     return true;
   }
   virtual bool
   RecvGetWakeLockInfo(const nsString &aTopic, WakeLockInformation *aWakeLockInfo) MOZ_OVERRIDE
   {
     hal::GetWakeLockInfo(aTopic, aWakeLockInfo);
     return true;
   }
   void Notify(const WakeLockInformation& aWakeLockInfo)
   {
     unused << SendNotifyWakeLockChange(aWakeLockInfo);
   }
   virtual bool
   RecvEnableSwitchNotifications(const SwitchDevice& aDevice) MOZ_OVERRIDE
   {
     // Content has no reason to listen to switch events currently.
     hal::RegisterSwitchObserver(aDevice, this);
     return true;
   }
   virtual bool
   RecvDisableSwitchNotifications(const SwitchDevice& aDevice) MOZ_OVERRIDE
   {
     hal::UnregisterSwitchObserver(aDevice, this);
     return true;
   }
   void Notify(const SwitchEvent& aSwitchEvent)
   {
     unused << SendNotifySwitchChange(aSwitchEvent);
   }
   virtual bool
   RecvGetCurrentSwitchState(const SwitchDevice& aDevice, hal::SwitchState *aState) MOZ_OVERRIDE
   {
     // Content has no reason to listen to switch events currently.
     *aState = hal::GetCurrentSwitchState(aDevice);
     return true;
   }
   virtual bool
   RecvNotifySwitchStateFromInputDevice(const SwitchDevice& aDevice,
                                        const SwitchState& aState) MOZ_OVERRIDE
   {
     hal::NotifySwitchStateFromInputDevice(aDevice, aState);
     return true;
   }
   void Notify(const int64_t& aClockDeltaMS)
   {
     unused << SendNotifySystemClockChange(aClockDeltaMS);
   }
   void Notify(const SystemTimezoneChangeInformation& aSystemTimezoneChangeInfo)
   {
     unused << SendNotifySystemTimezoneChange(aSystemTimezoneChangeInfo);
   }
   virtual bool
   RecvFactoryReset()
   {
     if (!AssertAppProcessPermission(this, "power")) {
       return false;
     }
     hal::FactoryReset();
     return true;
   }
   virtual mozilla::ipc::IProtocol*
   CloneProtocol(Channel* aChannel,
                 mozilla::ipc::ProtocolCloneContext* aCtx) MOZ_OVERRIDE
   {
     ContentParent* contentParent = aCtx->GetContentParent();
     nsAutoPtr<PHalParent> actor(contentParent->AllocPHalParent());
     if (!actor || !contentParent->RecvPHalConstructor(actor)) {
       return nullptr;
     }
     return actor.forget();
   }
 };
 class HalChild : public PHalChild {
 public:
   virtual void
   ActorDestroy(ActorDestroyReason aWhy) MOZ_OVERRIDE
   {
     sHalChildDestroyed = true;
   }
   virtual bool
   RecvNotifyBatteryChange(const BatteryInformation& aBatteryInfo) MOZ_OVERRIDE {
     hal::NotifyBatteryChange(aBatteryInfo);
     return true;
   }
   virtual bool
   RecvNotifySensorChange(const hal::SensorData &aSensorData) MOZ_OVERRIDE;
   virtual bool
   RecvNotifyNetworkChange(const NetworkInformation& aNetworkInfo) MOZ_OVERRIDE {
     hal::NotifyNetworkChange(aNetworkInfo);
     return true;
   }
   virtual bool
   RecvNotifyWakeLockChange(const WakeLockInformation& aWakeLockInfo) MOZ_OVERRIDE {
     hal::NotifyWakeLockChange(aWakeLockInfo);
     return true;
   }
   virtual bool
   RecvNotifyScreenConfigurationChange(const ScreenConfiguration& aScreenConfiguration) MOZ_OVERRIDE {
     hal::NotifyScreenConfigurationChange(aScreenConfiguration);
     return true;
   }
   virtual bool
   RecvNotifySwitchChange(const mozilla::hal::SwitchEvent& aEvent) MOZ_OVERRIDE {
     hal::NotifySwitchChange(aEvent);
     return true;
   }
   virtual bool
   RecvNotifySystemClockChange(const int64_t& aClockDeltaMS) {
     hal::NotifySystemClockChange(aClockDeltaMS);
     return true;
   }
   virtual bool
   RecvNotifySystemTimezoneChange(
     const SystemTimezoneChangeInformation& aSystemTimezoneChangeInfo) {
     hal::NotifySystemTimezoneChange(aSystemTimezoneChangeInfo);
     return true;
   }
 };
 bool
 HalChild::RecvNotifySensorChange(const hal::SensorData &aSensorData) {
   hal::NotifySensorChange(aSensorData);
   return true;
 }
 PHalChild* CreateHalChild() {
   return new HalChild();
 }
 PHalParent* CreateHalParent() {
   return new HalParent();
 }
 } // namespace hal_sandbox
 } // namespace mozilla

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hal/sandbox/SandboxHal.cpp@7e26c7da4463 (annotated)

hal/sandbox/SandboxHal.cpp