| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef ANDROID_SERVERS_CAMERA_CAMERASERVICE_H |
| #define ANDROID_SERVERS_CAMERA_CAMERASERVICE_H |
| |
| #include <android/content/AttributionSourceState.h> |
| #include <android/hardware/BnCameraService.h> |
| #include <android/hardware/BnSensorPrivacyListener.h> |
| #include <android/hardware/ICameraServiceListener.h> |
| #include <android/hardware/CameraIdRemapping.h> |
| #include <android/hardware/camera2/BnCameraInjectionSession.h> |
| #include <android/hardware/camera2/ICameraInjectionCallback.h> |
| |
| #include <cutils/multiuser.h> |
| #include <utils/Vector.h> |
| #include <utils/KeyedVector.h> |
| #include <binder/ActivityManager.h> |
| #include <binder/AppOpsManager.h> |
| #include <binder/BinderService.h> |
| #include <binder/IServiceManager.h> |
| #include <binder/IActivityManager.h> |
| #include <binder/IAppOpsCallback.h> |
| #include <binder/IUidObserver.h> |
| #include <hardware/camera.h> |
| #include <sensorprivacy/SensorPrivacyManager.h> |
| |
| #include <android/hardware/camera/common/1.0/types.h> |
| |
| #include <camera/VendorTagDescriptor.h> |
| #include <camera/CaptureResult.h> |
| #include <camera/CameraParameters.h> |
| #include <camera/camera2/ConcurrentCamera.h> |
| |
| #include "CameraFlashlight.h" |
| |
| #include "common/CameraProviderManager.h" |
| #include "media/RingBuffer.h" |
| #include "utils/AutoConditionLock.h" |
| #include "utils/ClientManager.h" |
| #include "utils/IPCTransport.h" |
| #include "utils/CameraServiceProxyWrapper.h" |
| |
| #include <set> |
| #include <string> |
| #include <list> |
| #include <map> |
| #include <memory> |
| #include <optional> |
| #include <utility> |
| #include <unordered_map> |
| #include <unordered_set> |
| #include <vector> |
| |
| namespace android { |
| |
| extern volatile int32_t gLogLevel; |
| |
| class MemoryHeapBase; |
| class MediaPlayer; |
| |
| class CameraService : |
| public BinderService<CameraService>, |
| public virtual ::android::hardware::BnCameraService, |
| public virtual IBinder::DeathRecipient, |
| public virtual CameraProviderManager::StatusListener, |
| public virtual IServiceManager::LocalRegistrationCallback |
| { |
| friend class BinderService<CameraService>; |
| friend class CameraOfflineSessionClient; |
| public: |
| class Client; |
| class BasicClient; |
| class OfflineClient; |
| |
| // The effective API level. The Camera2 API running in LEGACY mode counts as API_1. |
| enum apiLevel { |
| API_1 = 1, |
| API_2 = 2 |
| }; |
| |
| // 3 second busy timeout when other clients are connecting |
| static const nsecs_t DEFAULT_CONNECT_TIMEOUT_NS = 3000000000; |
| |
| // 1 second busy timeout when other clients are disconnecting |
| static const nsecs_t DEFAULT_DISCONNECT_TIMEOUT_NS = 1000000000; |
| |
| // Default number of messages to store in eviction log |
| static const size_t DEFAULT_EVENT_LOG_LENGTH = 100; |
| |
| // Event log ID |
| static const int SN_EVENT_LOG_ID = 0x534e4554; |
| |
| // Keep this in sync with frameworks/base/core/java/android/os/UserHandle.java |
| static const userid_t USER_SYSTEM = 0; |
| |
| // Register camera service |
| static void instantiate(); |
| |
| // Implementation of BinderService<T> |
| static char const* getServiceName() { return "media.camera"; } |
| |
| // Implementation of IServiceManager::LocalRegistrationCallback |
| virtual void onServiceRegistration(const String16& name, const sp<IBinder>& binder) override; |
| |
| // Non-null arguments for cameraServiceProxyWrapper should be provided for |
| // testing purposes only. |
| CameraService(std::shared_ptr<CameraServiceProxyWrapper> |
| cameraServiceProxyWrapper = nullptr); |
| virtual ~CameraService(); |
| |
| ///////////////////////////////////////////////////////////////////// |
| // HAL Callbacks - implements CameraProviderManager::StatusListener |
| |
| virtual void onDeviceStatusChanged(const std::string &cameraId, |
| CameraDeviceStatus newHalStatus) override; |
| virtual void onDeviceStatusChanged(const std::string &cameraId, |
| const std::string &physicalCameraId, |
| CameraDeviceStatus newHalStatus) override; |
| // This method may hold CameraProviderManager::mInterfaceMutex as a part |
| // of calling getSystemCameraKind() internally. Care should be taken not to |
| // directly / indirectly call this from callers who also hold |
| // mInterfaceMutex. |
| virtual void onTorchStatusChanged(const std::string& cameraId, |
| TorchModeStatus newStatus) override; |
| // Does not hold CameraProviderManager::mInterfaceMutex. |
| virtual void onTorchStatusChanged(const std::string& cameraId, |
| TorchModeStatus newStatus, |
| SystemCameraKind kind) override; |
| virtual void onNewProviderRegistered() override; |
| |
| ///////////////////////////////////////////////////////////////////// |
| // ICameraService |
| // IMPORTANT: All binder calls that deal with logicalCameraId should use |
| // resolveCameraId(logicalCameraId) to arrive at the correct cameraId to |
| // perform the operation on (in case of Id Remapping). |
| virtual binder::Status getNumberOfCameras(int32_t type, int32_t* numCameras); |
| |
| virtual binder::Status getCameraInfo(int cameraId, bool overrideToPortrait, |
| hardware::CameraInfo* cameraInfo) override; |
| virtual binder::Status getCameraCharacteristics(const std::string& cameraId, |
| int targetSdkVersion, bool overrideToPortrait, CameraMetadata* cameraInfo) override; |
| virtual binder::Status getCameraVendorTagDescriptor( |
| /*out*/ |
| hardware::camera2::params::VendorTagDescriptor* desc); |
| virtual binder::Status getCameraVendorTagCache( |
| /*out*/ |
| hardware::camera2::params::VendorTagDescriptorCache* cache); |
| |
| virtual binder::Status connect(const sp<hardware::ICameraClient>& cameraClient, |
| int32_t cameraId, const std::string& clientPackageName, |
| int32_t clientUid, int clientPid, int targetSdkVersion, |
| bool overrideToPortrait, bool forceSlowJpegMode, |
| /*out*/ |
| sp<hardware::ICamera>* device) override; |
| |
| virtual binder::Status connectDevice( |
| const sp<hardware::camera2::ICameraDeviceCallbacks>& cameraCb, |
| const std::string& cameraId, |
| const std::string& clientPackageName, const std::optional<std::string>& clientFeatureId, |
| int32_t clientUid, int scoreOffset, int targetSdkVersion, bool overrideToPortrait, |
| /*out*/ |
| sp<hardware::camera2::ICameraDeviceUser>* device); |
| |
| virtual binder::Status addListener(const sp<hardware::ICameraServiceListener>& listener, |
| /*out*/ |
| std::vector<hardware::CameraStatus>* cameraStatuses); |
| virtual binder::Status removeListener( |
| const sp<hardware::ICameraServiceListener>& listener); |
| |
| virtual binder::Status getConcurrentCameraIds( |
| /*out*/ |
| std::vector<hardware::camera2::utils::ConcurrentCameraIdCombination>* concurrentCameraIds); |
| |
| virtual binder::Status isConcurrentSessionConfigurationSupported( |
| const std::vector<hardware::camera2::utils::CameraIdAndSessionConfiguration>& sessions, |
| int targetSdkVersion, /*out*/bool* supported); |
| |
| virtual binder::Status getLegacyParameters( |
| int32_t cameraId, |
| /*out*/ |
| std::string* parameters); |
| |
| virtual binder::Status setTorchMode(const std::string& cameraId, bool enabled, |
| const sp<IBinder>& clientBinder); |
| |
| virtual binder::Status turnOnTorchWithStrengthLevel(const std::string& cameraId, |
| int32_t torchStrength, const sp<IBinder>& clientBinder); |
| |
| virtual binder::Status getTorchStrengthLevel(const std::string& cameraId, |
| int32_t* torchStrength); |
| |
| virtual binder::Status notifySystemEvent(int32_t eventId, |
| const std::vector<int32_t>& args); |
| |
| virtual binder::Status notifyDeviceStateChange(int64_t newState); |
| |
| virtual binder::Status notifyDisplayConfigurationChange(); |
| |
| // OK = supports api of that version, -EOPNOTSUPP = does not support |
| virtual binder::Status supportsCameraApi( |
| const std::string& cameraId, int32_t apiVersion, |
| /*out*/ |
| bool *isSupported); |
| |
| virtual binder::Status isHiddenPhysicalCamera( |
| const std::string& cameraId, |
| /*out*/ |
| bool *isSupported); |
| |
| virtual binder::Status injectCamera( |
| const std::string& packageName, const std::string& internalCamId, |
| const std::string& externalCamId, |
| const sp<hardware::camera2::ICameraInjectionCallback>& callback, |
| /*out*/ |
| sp<hardware::camera2::ICameraInjectionSession>* cameraInjectionSession); |
| |
| virtual binder::Status reportExtensionSessionStats( |
| const hardware::CameraExtensionSessionStats& stats, std::string* sessionKey /*out*/); |
| |
| virtual binder::Status remapCameraIds(const hardware::CameraIdRemapping& |
| cameraIdRemapping); |
| |
| virtual binder::Status injectSessionParams( |
| const std::string& cameraId, |
| const hardware::camera2::impl::CameraMetadataNative& sessionParams); |
| |
| virtual binder::Status createDefaultRequest(const std::string& cameraId, int templateId, |
| /*out*/ |
| hardware::camera2::impl::CameraMetadataNative* request); |
| |
| virtual binder::Status isSessionConfigurationWithParametersSupported( |
| const std::string& cameraId, |
| const SessionConfiguration& sessionConfiguration, |
| /*out*/ |
| bool* supported); |
| |
| // Extra permissions checks |
| virtual status_t onTransact(uint32_t code, const Parcel& data, |
| Parcel* reply, uint32_t flags); |
| |
| virtual status_t dump(int fd, const Vector<String16>& args); |
| |
| virtual status_t shellCommand(int in, int out, int err, const Vector<String16>& args); |
| |
| binder::Status addListenerHelper(const sp<hardware::ICameraServiceListener>& listener, |
| /*out*/ |
| std::vector<hardware::CameraStatus>* cameraStatuses, bool isVendor = false, |
| bool isProcessLocalTest = false); |
| |
| // Monitored UIDs availability notification |
| void notifyMonitoredUids(); |
| void notifyMonitoredUids(const std::unordered_set<uid_t> ¬ifyUidSet); |
| |
| // Stores current open session device info in temp file. |
| void cacheDump(); |
| |
| // Register an offline client for a given active camera id |
| status_t addOfflineClient(const std::string &cameraId, sp<BasicClient> offlineClient); |
| |
| ///////////////////////////////////////////////////////////////////// |
| // Client functionality |
| |
| enum sound_kind { |
| SOUND_SHUTTER = 0, |
| SOUND_RECORDING_START = 1, |
| SOUND_RECORDING_STOP = 2, |
| NUM_SOUNDS |
| }; |
| |
| void playSound(sound_kind kind); |
| void loadSoundLocked(sound_kind kind); |
| void decreaseSoundRef(); |
| void increaseSoundRef(); |
| |
| ///////////////////////////////////////////////////////////////////// |
| // CameraDeviceFactory functionality |
| std::pair<int, IPCTransport> getDeviceVersion(const std::string& cameraId, |
| bool overrideToPortrait, int* portraitRotation, |
| int* facing = nullptr, int* orientation = nullptr); |
| |
| ///////////////////////////////////////////////////////////////////// |
| // Methods to be used in CameraService class tests only |
| // |
| // CameraService class test method only - clear static variables in the |
| // cameraserver process, which otherwise might affect multiple test runs. |
| void clearCachedVariables(); |
| |
| // Add test listener, linkToDeath won't be called since this is for process |
| // local testing. |
| binder::Status addListenerTest(const sp<hardware::ICameraServiceListener>& listener, |
| /*out*/ |
| std::vector<hardware::CameraStatus>* cameraStatuses); |
| |
| ///////////////////////////////////////////////////////////////////// |
| // Shared utilities |
| static binder::Status filterGetInfoErrorCode(status_t err); |
| |
| ///////////////////////////////////////////////////////////////////// |
| // CameraClient functionality |
| |
| class BasicClient : public virtual RefBase { |
| friend class CameraService; |
| public: |
| virtual status_t initialize(sp<CameraProviderManager> manager, |
| const std::string& monitorTags) = 0; |
| virtual binder::Status disconnect(); |
| |
| // because we can't virtually inherit IInterface, which breaks |
| // virtual inheritance |
| virtual sp<IBinder> asBinderWrapper() = 0; |
| |
| // Return the remote callback binder object (e.g. ICameraDeviceCallbacks) |
| sp<IBinder> getRemote() { |
| return mRemoteBinder; |
| } |
| |
| bool getOverrideToPortrait() const { |
| return mOverrideToPortrait; |
| } |
| |
| // Disallows dumping over binder interface |
| virtual status_t dump(int fd, const Vector<String16>& args); |
| // Internal dump method to be called by CameraService |
| virtual status_t dumpClient(int fd, const Vector<String16>& args) = 0; |
| |
| virtual status_t startWatchingTags(const std::string &tags, int outFd); |
| virtual status_t stopWatchingTags(int outFd); |
| virtual status_t dumpWatchedEventsToVector(std::vector<std::string> &out); |
| |
| // Return the package name for this client |
| virtual std::string getPackageName() const; |
| |
| // Return the camera facing for this client |
| virtual int getCameraFacing() const; |
| |
| // Return the camera orientation for this client |
| virtual int getCameraOrientation() const; |
| |
| // Notify client about a fatal error |
| virtual void notifyError(int32_t errorCode, |
| const CaptureResultExtras& resultExtras) = 0; |
| |
| // Get the UID of the application client using this |
| virtual uid_t getClientUid() const; |
| |
| // Get the PID of the application client using this |
| virtual int getClientPid() const; |
| |
| // Check what API level is used for this client. This is used to determine which |
| // superclass this can be cast to. |
| virtual bool canCastToApiClient(apiLevel level) const; |
| |
| // Block the client form using the camera |
| virtual void block(); |
| |
| // set audio restriction from client |
| // Will call into camera service and hold mServiceLock |
| virtual status_t setAudioRestriction(int32_t mode); |
| |
| // Get current global audio restriction setting |
| // Will call into camera service and hold mServiceLock |
| virtual int32_t getServiceAudioRestriction() const; |
| |
| // Get current audio restriction setting for this client |
| virtual int32_t getAudioRestriction() const; |
| |
| static bool isValidAudioRestriction(int32_t mode); |
| |
| // Override rotate-and-crop AUTO behavior |
| virtual status_t setRotateAndCropOverride(uint8_t rotateAndCrop, bool fromHal = false) = 0; |
| |
| // Override autoframing AUTO behaviour |
| virtual status_t setAutoframingOverride(uint8_t autoframingValue) = 0; |
| |
| // Whether the client supports camera muting (black only output) |
| virtual bool supportsCameraMute() = 0; |
| |
| // Set/reset camera mute |
| virtual status_t setCameraMute(bool enabled) = 0; |
| |
| // Set Camera service watchdog |
| virtual status_t setCameraServiceWatchdog(bool enabled) = 0; |
| |
| // Set stream use case overrides |
| virtual void setStreamUseCaseOverrides( |
| const std::vector<int64_t>& useCaseOverrides) = 0; |
| |
| // Clear stream use case overrides |
| virtual void clearStreamUseCaseOverrides() = 0; |
| |
| // Whether the client supports camera zoom override |
| virtual bool supportsZoomOverride() = 0; |
| |
| // Set/reset zoom override |
| virtual status_t setZoomOverride(int32_t zoomOverride) = 0; |
| |
| // The injection camera session to replace the internal camera |
| // session. |
| virtual status_t injectCamera(const std::string& injectedCamId, |
| sp<CameraProviderManager> manager) = 0; |
| |
| // Stop the injection camera and restore to internal camera session. |
| virtual status_t stopInjection() = 0; |
| |
| // Inject session parameters into an existing session. |
| virtual status_t injectSessionParams( |
| const hardware::camera2::impl::CameraMetadataNative& sessionParams) = 0; |
| |
| protected: |
| BasicClient(const sp<CameraService>& cameraService, |
| const sp<IBinder>& remoteCallback, |
| const std::string& clientPackageName, |
| bool nativeClient, |
| const std::optional<std::string>& clientFeatureId, |
| const std::string& cameraIdStr, |
| int cameraFacing, |
| int sensorOrientation, |
| int clientPid, |
| uid_t clientUid, |
| int servicePid, |
| bool overrideToPortrait); |
| |
| virtual ~BasicClient(); |
| |
| // the instance is in the middle of destruction. When this is set, |
| // the instance should not be accessed from callback. |
| // CameraService's mClientLock should be acquired to access this. |
| // - subclasses should set this to true in their destructors. |
| bool mDestructionStarted; |
| |
| // these are initialized in the constructor. |
| static sp<CameraService> sCameraService; |
| const std::string mCameraIdStr; |
| const int mCameraFacing; |
| const int mOrientation; |
| std::string mClientPackageName; |
| bool mSystemNativeClient; |
| std::optional<std::string> mClientFeatureId; |
| pid_t mClientPid; |
| const uid_t mClientUid; |
| const pid_t mServicePid; |
| bool mDisconnected; |
| bool mUidIsTrusted; |
| bool mOverrideToPortrait; |
| |
| mutable Mutex mAudioRestrictionLock; |
| int32_t mAudioRestriction; |
| |
| // - The app-side Binder interface to receive callbacks from us |
| sp<IBinder> mRemoteBinder; // immutable after constructor |
| |
| // Permissions management methods for camera lifecycle |
| |
| // Notify rest of system/apps about camera opening, and check appops |
| virtual status_t startCameraOps(); |
| // Notify rest of system/apps about camera starting to stream data, and confirm appops |
| virtual status_t startCameraStreamingOps(); |
| // Notify rest of system/apps about camera stopping streaming data |
| virtual status_t finishCameraStreamingOps(); |
| // Notify rest of system/apps about camera closing |
| virtual status_t finishCameraOps(); |
| // Handle errors for start/checkOps |
| virtual status_t handleAppOpMode(int32_t mode); |
| // Just notify camera appops to trigger unblocking dialog if sensor |
| // privacy is enabled and camera mute is not supported |
| virtual status_t noteAppOp(); |
| |
| std::unique_ptr<AppOpsManager> mAppOpsManager = nullptr; |
| |
| class OpsCallback : public BnAppOpsCallback { |
| public: |
| explicit OpsCallback(wp<BasicClient> client); |
| virtual void opChanged(int32_t op, const String16& packageName); |
| |
| private: |
| wp<BasicClient> mClient; |
| |
| }; // class OpsCallback |
| |
| sp<OpsCallback> mOpsCallback; |
| // Track whether checkOps was called successfully, to avoid |
| // finishing what we didn't start, on camera open. |
| bool mOpsActive; |
| // Track whether startOps was called successfully on start of |
| // camera streaming. |
| bool mOpsStreaming; |
| |
| // IAppOpsCallback interface, indirected through opListener |
| virtual void opChanged(int32_t op, const String16& packageName); |
| }; // class BasicClient |
| |
| class Client : public hardware::BnCamera, public BasicClient |
| { |
| public: |
| typedef hardware::ICameraClient TCamCallbacks; |
| |
| // ICamera interface (see ICamera for details) |
| virtual binder::Status disconnect(); |
| virtual status_t connect(const sp<hardware::ICameraClient>& client) = 0; |
| virtual status_t lock() = 0; |
| virtual status_t unlock() = 0; |
| virtual status_t setPreviewTarget(const sp<IGraphicBufferProducer>& bufferProducer)=0; |
| virtual void setPreviewCallbackFlag(int flag) = 0; |
| virtual status_t setPreviewCallbackTarget( |
| const sp<IGraphicBufferProducer>& callbackProducer) = 0; |
| virtual status_t startPreview() = 0; |
| virtual void stopPreview() = 0; |
| virtual bool previewEnabled() = 0; |
| virtual status_t setVideoBufferMode(int32_t videoBufferMode) = 0; |
| virtual status_t startRecording() = 0; |
| virtual void stopRecording() = 0; |
| virtual bool recordingEnabled() = 0; |
| virtual void releaseRecordingFrame(const sp<IMemory>& mem) = 0; |
| virtual status_t autoFocus() = 0; |
| virtual status_t cancelAutoFocus() = 0; |
| virtual status_t takePicture(int msgType) = 0; |
| virtual status_t setParameters(const String8& params) = 0; |
| virtual String8 getParameters() const = 0; |
| virtual status_t sendCommand(int32_t cmd, int32_t arg1, int32_t arg2) = 0; |
| virtual status_t setVideoTarget(const sp<IGraphicBufferProducer>& bufferProducer) = 0; |
| |
| // Interface used by CameraService |
| Client(const sp<CameraService>& cameraService, |
| const sp<hardware::ICameraClient>& cameraClient, |
| const std::string& clientPackageName, |
| bool systemNativeClient, |
| const std::optional<std::string>& clientFeatureId, |
| const std::string& cameraIdStr, |
| int api1CameraId, |
| int cameraFacing, |
| int sensorOrientation, |
| int clientPid, |
| uid_t clientUid, |
| int servicePid, |
| bool overrideToPortrait); |
| ~Client(); |
| |
| // return our camera client |
| const sp<hardware::ICameraClient>& getRemoteCallback() { |
| return mRemoteCallback; |
| } |
| |
| virtual sp<IBinder> asBinderWrapper() { |
| return asBinder(this); |
| } |
| |
| virtual void notifyError(int32_t errorCode, |
| const CaptureResultExtras& resultExtras); |
| |
| // Check what API level is used for this client. This is used to determine which |
| // superclass this can be cast to. |
| virtual bool canCastToApiClient(apiLevel level) const; |
| |
| void setImageDumpMask(int /*mask*/) { } |
| protected: |
| // Initialized in constructor |
| |
| // - The app-side Binder interface to receive callbacks from us |
| sp<hardware::ICameraClient> mRemoteCallback; |
| |
| int mCameraId; // All API1 clients use integer camera IDs |
| }; // class Client |
| |
| /** |
| * A listener class that implements the LISTENER interface for use with a ClientManager, and |
| * implements the following methods: |
| * void onClientRemoved(const ClientDescriptor<KEY, VALUE>& descriptor); |
| * void onClientAdded(const ClientDescriptor<KEY, VALUE>& descriptor); |
| */ |
| class ClientEventListener { |
| public: |
| void onClientAdded(const resource_policy::ClientDescriptor<std::string, |
| sp<CameraService::BasicClient>>& descriptor); |
| void onClientRemoved(const resource_policy::ClientDescriptor<std::string, |
| sp<CameraService::BasicClient>>& descriptor); |
| }; // class ClientEventListener |
| |
| typedef std::shared_ptr<resource_policy::ClientDescriptor<std::string, |
| sp<CameraService::BasicClient>>> DescriptorPtr; |
| |
| /** |
| * A container class for managing active camera clients that are using HAL devices. Active |
| * clients are represented by ClientDescriptor objects that contain strong pointers to the |
| * actual BasicClient subclass binder interface implementation. |
| * |
| * This class manages the eviction behavior for the camera clients. See the parent class |
| * implementation in utils/ClientManager for the specifics of this behavior. |
| */ |
| class CameraClientManager : public resource_policy::ClientManager<std::string, |
| sp<CameraService::BasicClient>, ClientEventListener> { |
| public: |
| CameraClientManager(); |
| virtual ~CameraClientManager(); |
| |
| /** |
| * Return a strong pointer to the active BasicClient for this camera ID, or an empty |
| * if none exists. |
| */ |
| sp<CameraService::BasicClient> getCameraClient(const std::string& id) const; |
| |
| /** |
| * Return a string describing the current state. |
| */ |
| std::string toString() const; |
| |
| /** |
| * Make a ClientDescriptor object wrapping the given BasicClient strong pointer. |
| */ |
| static DescriptorPtr makeClientDescriptor(const std::string& key, |
| const sp<BasicClient>& value, int32_t cost, |
| const std::set<std::string>& conflictingKeys, int32_t score, |
| int32_t ownerId, int32_t state, int oomScoreOffset, bool systemNativeClient); |
| |
| /** |
| * Make a ClientDescriptor object wrapping the given BasicClient strong pointer with |
| * values intialized from a prior ClientDescriptor. |
| */ |
| static DescriptorPtr makeClientDescriptor(const sp<BasicClient>& value, |
| const CameraService::DescriptorPtr& partial, int oomScoreOffset, |
| bool systemNativeClient); |
| |
| }; // class CameraClientManager |
| |
| int32_t updateAudioRestriction(); |
| int32_t updateAudioRestrictionLocked(); |
| |
| private: |
| /** |
| * Returns true if the device is an automotive device and cameraId is system |
| * only camera which has characteristic AUTOMOTIVE_LOCATION value as either |
| * AUTOMOTIVE_LOCATION_EXTERIOR_LEFT,AUTOMOTIVE_LOCATION_EXTERIOR_RIGHT, |
| * AUTOMOTIVE_LOCATION_EXTERIOR_FRONT or AUTOMOTIVE_LOCATION_EXTERIOR_REAR. |
| */ |
| bool isAutomotiveExteriorSystemCamera(const std::string& cameraId) const; |
| |
| // TODO: b/263304156 update this to make use of a death callback for more |
| // robust/fault tolerant logging |
| static const sp<IActivityManager>& getActivityManager() { |
| static const char* kActivityService = "activity"; |
| static const auto activityManager = []() -> sp<IActivityManager> { |
| const sp<IServiceManager> sm(defaultServiceManager()); |
| if (sm != nullptr) { |
| return interface_cast<IActivityManager>(sm->checkService(String16(kActivityService))); |
| } |
| return nullptr; |
| }(); |
| return activityManager; |
| } |
| |
| /** |
| * Pre-grants the permission if the attribution source uid is for an automotive |
| * privileged client. Otherwise uses system service permission checker to check |
| * for the appropriate permission. If this function is called for accessing a specific |
| * camera,then the cameraID must not be empty. CameraId is used only in case of automotive |
| * privileged client so that permission is pre-granted only to access system camera device |
| * which is located outside of the vehicle body frame because camera located inside the vehicle |
| * cabin would need user permission. |
| */ |
| bool checkPermission(const std::string& cameraId, const std::string& permission, |
| const content::AttributionSourceState& attributionSource, const std::string& message, |
| int32_t attributedOpCode) const; |
| |
| bool hasPermissionsForSystemCamera(const std::string& cameraId, int callingPid, int callingUid) |
| const; |
| |
| bool hasPermissionsForCameraHeadlessSystemUser(const std::string& cameraId, int callingPid, |
| int callingUid) const; |
| |
| bool hasCameraPermissions() const; |
| /** |
| * Typesafe version of device status, containing both the HAL-layer and the service interface- |
| * layer values. |
| */ |
| enum class StatusInternal : int32_t { |
| NOT_PRESENT = static_cast<int32_t>(CameraDeviceStatus::NOT_PRESENT), |
| PRESENT = static_cast<int32_t>(CameraDeviceStatus::PRESENT), |
| ENUMERATING = static_cast<int32_t>(CameraDeviceStatus::ENUMERATING), |
| NOT_AVAILABLE = static_cast<int32_t>(hardware::ICameraServiceListener::STATUS_NOT_AVAILABLE), |
| UNKNOWN = static_cast<int32_t>(hardware::ICameraServiceListener::STATUS_UNKNOWN) |
| }; |
| |
| friend int32_t format_as(StatusInternal s); |
| |
| /** |
| * Container class for the state of each logical camera device, including: ID, status, and |
| * dependencies on other devices. The mapping of camera ID -> state saved in mCameraStates |
| * represents the camera devices advertised by the HAL (and any USB devices, when we add |
| * those). |
| * |
| * This container does NOT represent an active camera client. These are represented using |
| * the ClientDescriptors stored in mActiveClientManager. |
| */ |
| class CameraState { |
| public: |
| |
| /** |
| * Make a new CameraState and set the ID, cost, and conflicting devices using the values |
| * returned in the HAL's camera_info struct for each device. |
| */ |
| CameraState(const std::string& id, int cost, const std::set<std::string>& conflicting, |
| SystemCameraKind deviceKind, const std::vector<std::string>& physicalCameras); |
| virtual ~CameraState(); |
| |
| /** |
| * Return the status for this device. |
| * |
| * This method acquires mStatusLock. |
| */ |
| StatusInternal getStatus() const; |
| |
| /** |
| * This function updates the status for this camera device, unless the given status |
| * is in the given list of rejected status states, and execute the function passed in |
| * with a signature onStatusUpdateLocked(const std::string&, int32_t) |
| * if the status has changed. |
| * |
| * This method is idempotent, and will not result in the function passed to |
| * onStatusUpdateLocked being called more than once for the same arguments. |
| * This method aquires mStatusLock. |
| */ |
| template<class Func> |
| void updateStatus(StatusInternal status, |
| const std::string& cameraId, |
| std::initializer_list<StatusInternal> rejectSourceStates, |
| Func onStatusUpdatedLocked); |
| |
| /** |
| * Return the last set CameraParameters object generated from the information returned by |
| * the HAL for this device (or an empty CameraParameters object if none has been set). |
| */ |
| CameraParameters getShimParams() const; |
| |
| /** |
| * Set the CameraParameters for this device. |
| */ |
| void setShimParams(const CameraParameters& params); |
| |
| /** |
| * Return the resource_cost advertised by the HAL for this device. |
| */ |
| int getCost() const; |
| |
| /** |
| * Return a set of the IDs of conflicting devices advertised by the HAL for this device. |
| */ |
| std::set<std::string> getConflicting() const; |
| |
| /** |
| * Return the kind (SystemCameraKind) of this camera device. |
| */ |
| SystemCameraKind getSystemCameraKind() const; |
| |
| /** |
| * Return whether this camera is a logical multi-camera and has a |
| * particular physical sub-camera. |
| */ |
| bool containsPhysicalCamera(const std::string& physicalCameraId) const; |
| |
| /** |
| * Add/Remove the unavailable physical camera ID. |
| */ |
| bool addUnavailablePhysicalId(const std::string& physicalId); |
| bool removeUnavailablePhysicalId(const std::string& physicalId); |
| |
| /** |
| * Set and get client package name. |
| */ |
| void setClientPackage(const std::string& clientPackage); |
| std::string getClientPackage() const; |
| |
| /** |
| * Return the unavailable physical ids for this device. |
| * |
| * This method acquires mStatusLock. |
| */ |
| std::vector<std::string> getUnavailablePhysicalIds() const; |
| private: |
| const std::string mId; |
| StatusInternal mStatus; // protected by mStatusLock |
| const int mCost; |
| std::set<std::string> mConflicting; |
| std::set<std::string> mUnavailablePhysicalIds; |
| std::string mClientPackage; |
| mutable Mutex mStatusLock; |
| CameraParameters mShimParams; |
| const SystemCameraKind mSystemCameraKind; |
| const std::vector<std::string> mPhysicalCameras; // Empty if not a logical multi-camera |
| }; // class CameraState |
| |
| // Observer for UID lifecycle enforcing that UIDs in idle |
| // state cannot use the camera to protect user privacy. |
| class UidPolicy : |
| public BnUidObserver, |
| public virtual IBinder::DeathRecipient, |
| public virtual IServiceManager::LocalRegistrationCallback { |
| public: |
| explicit UidPolicy(sp<CameraService> service) |
| : mRegistered(false), mService(service) {} |
| |
| void registerSelf(); |
| void unregisterSelf(); |
| |
| bool isUidActive(uid_t uid, const std::string &callingPackage); |
| int32_t getProcState(uid_t uid); |
| |
| // IUidObserver |
| void onUidGone(uid_t uid, bool disabled) override; |
| void onUidActive(uid_t uid) override; |
| void onUidIdle(uid_t uid, bool disabled) override; |
| void onUidStateChanged(uid_t uid, int32_t procState, int64_t procStateSeq, |
| int32_t capability) override; |
| void onUidProcAdjChanged(uid_t uid, int adj) override; |
| |
| void addOverrideUid(uid_t uid, const std::string &callingPackage, bool active); |
| void removeOverrideUid(uid_t uid, const std::string &callingPackage); |
| |
| void registerMonitorUid(uid_t uid, bool openCamera); |
| void unregisterMonitorUid(uid_t uid, bool closeCamera); |
| |
| // Implementation of IServiceManager::LocalRegistrationCallback |
| virtual void onServiceRegistration(const String16& name, |
| const sp<IBinder>& binder) override; |
| // IBinder::DeathRecipient implementation |
| virtual void binderDied(const wp<IBinder> &who); |
| private: |
| bool isUidActiveLocked(uid_t uid, const std::string &callingPackage); |
| int32_t getProcStateLocked(uid_t uid); |
| void updateOverrideUid(uid_t uid, const std::string &callingPackage, bool active, |
| bool insert); |
| void registerWithActivityManager(); |
| |
| struct MonitoredUid { |
| int32_t procState; |
| int32_t procAdj; |
| bool hasCamera; |
| size_t refCount; |
| }; |
| |
| Mutex mUidLock; |
| bool mRegistered; |
| ActivityManager mAm; |
| wp<CameraService> mService; |
| std::unordered_set<uid_t> mActiveUids; |
| // Monitored uid map |
| std::unordered_map<uid_t, MonitoredUid> mMonitoredUids; |
| std::unordered_map<uid_t, bool> mOverrideUids; |
| sp<IBinder> mObserverToken; |
| }; // class UidPolicy |
| |
| // If sensor privacy is enabled then all apps, including those that are active, should be |
| // prevented from accessing the camera. |
| class SensorPrivacyPolicy : public hardware::BnSensorPrivacyListener, |
| public virtual IBinder::DeathRecipient, |
| public virtual IServiceManager::LocalRegistrationCallback { |
| public: |
| explicit SensorPrivacyPolicy(wp<CameraService> service) |
| : mService(service), mSensorPrivacyEnabled(false), mRegistered(false) {} |
| |
| void registerSelf(); |
| void unregisterSelf(); |
| |
| bool isSensorPrivacyEnabled(); |
| bool isCameraPrivacyEnabled(); |
| |
| binder::Status onSensorPrivacyChanged(int toggleType, int sensor, |
| bool enabled); |
| |
| // Implementation of IServiceManager::LocalRegistrationCallback |
| virtual void onServiceRegistration(const String16& name, |
| const sp<IBinder>& binder) override; |
| // IBinder::DeathRecipient implementation |
| virtual void binderDied(const wp<IBinder> &who); |
| |
| private: |
| SensorPrivacyManager mSpm; |
| wp<CameraService> mService; |
| Mutex mSensorPrivacyLock; |
| bool mSensorPrivacyEnabled; |
| bool mRegistered; |
| |
| bool hasCameraPrivacyFeature(); |
| void registerWithSensorPrivacyManager(); |
| }; |
| |
| sp<UidPolicy> mUidPolicy; |
| |
| sp<SensorPrivacyPolicy> mSensorPrivacyPolicy; |
| |
| std::shared_ptr<CameraServiceProxyWrapper> mCameraServiceProxyWrapper; |
| |
| // Delay-load the Camera HAL module |
| virtual void onFirstRef(); |
| |
| // Eumerate all camera providers in the system |
| status_t enumerateProviders(); |
| |
| // Add/remove a new camera to camera and torch state lists or remove an unplugged one |
| // Caller must not hold mServiceLock |
| void addStates(const std::string& id); |
| void removeStates(const std::string& id); |
| |
| // Check if we can connect, before we acquire the service lock. |
| // The returned originalClientPid is the PID of the original process that wants to connect to |
| // camera. |
| // The returned clientPid is the PID of the client that directly connects to camera. |
| // originalClientPid and clientPid are usually the same except when the application uses |
| // mediaserver to connect to camera (using MediaRecorder to connect to camera). In that case, |
| // clientPid is the PID of mediaserver and originalClientPid is the PID of the application. |
| binder::Status validateConnectLocked(const std::string& cameraId, const std::string& clientName, |
| /*inout*/int& clientUid, /*inout*/int& clientPid, /*out*/int& originalClientPid) const; |
| binder::Status validateClientPermissionsLocked(const std::string& cameraId, |
| const std::string& clientName, /*inout*/int& clientUid, /*inout*/int& clientPid, |
| /*out*/int& originalClientPid) const; |
| |
| // Handle active client evictions, and update service state. |
| // Only call with with mServiceLock held. |
| status_t handleEvictionsLocked(const std::string& cameraId, int clientPid, |
| apiLevel effectiveApiLevel, const sp<IBinder>& remoteCallback, |
| const std::string& packageName, int scoreOffset, bool systemNativeClient, |
| /*out*/ |
| sp<BasicClient>* client, |
| std::shared_ptr<resource_policy::ClientDescriptor<std::string, sp<BasicClient>>>* partial); |
| |
| // Should an operation attempt on a cameraId be rejected ? (this can happen |
| // under various conditions. For example if a camera device is advertised as |
| // system only or hidden secure camera, amongst possible others. |
| bool shouldRejectSystemCameraConnection(const std::string& cameraId) const; |
| |
| // Should a device status update be skipped for a particular camera device ? (this can happen |
| // under various conditions. For example if a camera device is advertised as |
| // system only or hidden secure camera, amongst possible others. |
| bool shouldSkipStatusUpdates(SystemCameraKind systemCameraKind, bool isVendorListener, |
| int clientPid, int clientUid); |
| |
| // Gets the kind of camera device (i.e public, hidden secure or system only) |
| // getSystemCameraKind() needs mInterfaceMutex which might lead to deadlocks |
| // if held along with mStatusListenerLock (depending on lock ordering, b/141756275), it is |
| // recommended that we don't call this function with mStatusListenerLock held. |
| status_t getSystemCameraKind(const std::string& cameraId, SystemCameraKind *kind) const; |
| |
| // Update the set of API1Compatible camera devices without including system |
| // cameras and secure cameras. This is used for hiding system only cameras |
| // from clients using camera1 api and not having android.permission.SYSTEM_CAMERA. |
| // This function expects @param normalDeviceIds, to have normalDeviceIds |
| // sorted in alpha-numeric order. |
| void filterAPI1SystemCameraLocked(const std::vector<std::string> &normalDeviceIds); |
| |
| // In some cases the calling code has no access to the package it runs under. |
| // For example, NDK camera API. |
| // In this case we will get the packages for the calling UID and pick the first one |
| // for attributing the app op. This will work correctly for runtime permissions |
| // as for legacy apps we will toggle the app op for all packages in the UID. |
| // The caveat is that the operation may be attributed to the wrong package and |
| // stats based on app ops may be slightly off. |
| std::string getPackageNameFromUid(int clientUid); |
| |
| // Single implementation shared between the various connect calls |
| template<class CALLBACK, class CLIENT> |
| binder::Status connectHelper(const sp<CALLBACK>& cameraCb, const std::string& cameraId, |
| int api1CameraId, const std::string& clientPackageNameMaybe, bool systemNativeClient, |
| const std::optional<std::string>& clientFeatureId, int clientUid, int clientPid, |
| apiLevel effectiveApiLevel, bool shimUpdateOnly, int scoreOffset, int targetSdkVersion, |
| bool overrideToPortrait, bool forceSlowJpegMode, const std::string& originalCameraId, |
| /*out*/sp<CLIENT>& device); |
| |
| // Lock guarding camera service state |
| Mutex mServiceLock; |
| |
| // Condition to use with mServiceLock, used to handle simultaneous connect calls from clients |
| std::shared_ptr<WaitableMutexWrapper> mServiceLockWrapper; |
| |
| // Return NO_ERROR if the device with a give ID can be connected to |
| status_t checkIfDeviceIsUsable(const std::string& cameraId) const; |
| |
| // Container for managing currently active application-layer clients |
| CameraClientManager mActiveClientManager; |
| |
| // Adds client logs during open session to the file pointed by fd. |
| void dumpOpenSessionClientLogs(int fd, const Vector<String16>& args, |
| const std::string& cameraId); |
| |
| // Adds client logs during closed session to the file pointed by fd. |
| void dumpClosedSessionClientLogs(int fd, const std::string& cameraId); |
| |
| // Mapping from camera ID -> state for each device, map is protected by mCameraStatesLock |
| std::map<std::string, std::shared_ptr<CameraState>> mCameraStates; |
| |
| // Mutex guarding mCameraStates map |
| mutable Mutex mCameraStatesLock; |
| |
| /** |
| * Mapping from packageName -> {cameraIdToReplace -> newCameraIdtoUse}. |
| * |
| * This specifies that for packageName, for every binder operation targeting |
| * cameraIdToReplace, use newCameraIdToUse instead. |
| */ |
| typedef std::map<std::string, std::map<std::string, std::string>> TCameraIdRemapping; |
| TCameraIdRemapping mCameraIdRemapping{}; |
| /** Mutex guarding mCameraIdRemapping. */ |
| Mutex mCameraIdRemappingLock; |
| |
| /** Parses cameraIdRemapping parcelable into the native cameraIdRemappingMap. */ |
| binder::Status parseCameraIdRemapping( |
| const hardware::CameraIdRemapping& cameraIdRemapping, |
| /* out */ TCameraIdRemapping* cameraIdRemappingMap); |
| |
| /** |
| * Resolve the (potentially remapped) camera Id to use for packageName. |
| * |
| * This returns the Camera Id to use in case inputCameraId was remapped to a |
| * different Id for the given packageName. Otherwise, it returns the inputCameraId. |
| * |
| * If the packageName is not provided, it will be inferred from the clientUid. |
| */ |
| std::string resolveCameraId( |
| const std::string& inputCameraId, |
| int clientUid, |
| const std::string& packageName = ""); |
| |
| /** |
| * Updates the state of mCameraIdRemapping, while disconnecting active clients as necessary. |
| */ |
| void remapCameraIds(const TCameraIdRemapping& cameraIdRemapping); |
| |
| /** |
| * Finds the Camera Ids that were remapped to the inputCameraId for the given client. |
| */ |
| std::vector<std::string> findOriginalIdsForRemappedCameraId( |
| const std::string& inputCameraId, int clientUid); |
| |
| // Circular buffer for storing event logging for dumps |
| RingBuffer<std::string> mEventLog; |
| Mutex mLogLock; |
| |
| // set of client package names to watch. if this set contains 'all', then all clients will |
| // be watched. Access should be guarded by mLogLock |
| std::set<std::string> mWatchedClientPackages; |
| // cache of last monitored tags dump immediately before the client disconnects. If a client |
| // re-connects, its entry is not updated until it disconnects again. Access should be guarded |
| // by mLogLock |
| std::map<std::string, std::string> mWatchedClientsDumpCache; |
| |
| // The last monitored tags set by client |
| std::string mMonitorTags; |
| |
| // Currently allowed user IDs |
| std::set<userid_t> mAllowedUsers; |
| |
| /** |
| * Get the camera state for a given camera id. |
| * |
| * This acquires mCameraStatesLock. |
| */ |
| std::shared_ptr<CameraService::CameraState> getCameraState(const std::string& cameraId) const; |
| |
| /** |
| * Evict client who's remote binder has died. Returns true if this client was in the active |
| * list and was disconnected. |
| * |
| * This method acquires mServiceLock. |
| */ |
| bool evictClientIdByRemote(const wp<IBinder>& cameraClient); |
| |
| /** |
| * Remove the given client from the active clients list; does not disconnect the client. |
| * |
| * This method acquires mServiceLock. |
| */ |
| void removeByClient(const BasicClient* client); |
| |
| /** |
| * Add new client to active clients list after conflicting clients have disconnected using the |
| * values set in the partial descriptor passed in to construct the actual client descriptor. |
| * This is typically called at the end of a connect call. |
| * |
| * This method must be called with mServiceLock held. |
| */ |
| void finishConnectLocked(const sp<BasicClient>& client, const DescriptorPtr& desc, |
| int oomScoreOffset, bool systemNativeClient); |
| |
| /** |
| * Returns the underlying camera Id string mapped to a camera id int |
| * Empty string is returned when the cameraIdInt is invalid. |
| */ |
| std::string cameraIdIntToStr(int cameraIdInt); |
| |
| /** |
| * Returns the underlying camera Id string mapped to a camera id int |
| * Empty string is returned when the cameraIdInt is invalid. |
| */ |
| std::string cameraIdIntToStrLocked(int cameraIdInt); |
| |
| /** |
| * Remove a single client corresponding to the given camera id from the list of active clients. |
| * If none exists, return an empty strongpointer. |
| * |
| * This method must be called with mServiceLock held. |
| */ |
| sp<CameraService::BasicClient> removeClientLocked(const std::string& cameraId); |
| |
| /** |
| * Handle a notification that the current device user has changed. |
| */ |
| void doUserSwitch(const std::vector<int32_t>& newUserIds); |
| |
| /** |
| * Add an event log message. |
| */ |
| void logEvent(const std::string &event); |
| |
| /** |
| * Add an event log message that a client has been disconnected. |
| */ |
| void logDisconnected(const std::string &cameraId, int clientPid, |
| const std::string &clientPackage); |
| |
| /** |
| * Add an event log message that a client has been disconnected from offline device. |
| */ |
| void logDisconnectedOffline(const std::string &cameraId, int clientPid, |
| const std::string &clientPackage); |
| |
| /** |
| * Add an event log message that an offline client has been connected. |
| */ |
| void logConnectedOffline(const std::string &cameraId, int clientPid, |
| const std::string &clientPackage); |
| |
| /** |
| * Add an event log message that a client has been connected. |
| */ |
| void logConnected(const std::string &cameraId, int clientPid, const std::string &clientPackage); |
| |
| /** |
| * Add an event log message that a client's connect attempt has been rejected. |
| */ |
| void logRejected(const std::string &cameraId, int clientPid, const std::string &clientPackage, |
| const std::string &reason); |
| |
| /** |
| * Add an event log message when a client calls setTorchMode succesfully. |
| */ |
| void logTorchEvent(const std::string &cameraId, const std::string &torchState, int clientPid); |
| |
| /** |
| * Add an event log message that the current device user has been switched. |
| */ |
| void logUserSwitch(const std::set<userid_t>& oldUserIds, |
| const std::set<userid_t>& newUserIds); |
| |
| /** |
| * Add an event log message that a device has been removed by the HAL |
| */ |
| void logDeviceRemoved(const std::string &cameraId, const std::string &reason); |
| |
| /** |
| * Add an event log message that a device has been added by the HAL |
| */ |
| void logDeviceAdded(const std::string &cameraId, const std::string &reason); |
| |
| /** |
| * Add an event log message that a client has unexpectedly died. |
| */ |
| void logClientDied(int clientPid, const std::string &reason); |
| |
| /** |
| * Add a event log message that a serious service-level error has occured |
| * The errorCode should be one of the Android Errors |
| */ |
| void logServiceError(const std::string &msg, int errorCode); |
| |
| /** |
| * Dump the event log to an FD |
| */ |
| void dumpEventLog(int fd); |
| |
| void cacheClientTagDumpIfNeeded(const std::string &cameraId, BasicClient *client); |
| |
| /** |
| * This method will acquire mServiceLock |
| */ |
| void updateCameraNumAndIds(); |
| |
| /** |
| * Filter camera characteristics for S Performance class primary cameras. |
| * mServiceLock should be locked. |
| */ |
| void filterSPerfClassCharacteristicsLocked(); |
| |
| // File descriptor to temp file used for caching previous open |
| // session dumpsys info. |
| int mMemFd; |
| |
| // Number of camera devices (excluding hidden secure cameras) |
| int mNumberOfCameras; |
| // Number of camera devices (excluding hidden secure cameras and |
| // system cameras) |
| int mNumberOfCamerasWithoutSystemCamera; |
| |
| std::vector<std::string> mNormalDeviceIds; |
| std::vector<std::string> mNormalDeviceIdsWithoutSystemCamera; |
| std::set<std::string> mPerfClassPrimaryCameraIds; |
| |
| // sounds |
| sp<MediaPlayer> newMediaPlayer(const char *file); |
| |
| Mutex mSoundLock; |
| sp<MediaPlayer> mSoundPlayer[NUM_SOUNDS]; |
| int mSoundRef; // reference count (release all MediaPlayer when 0) |
| |
| // Basic flag on whether the camera subsystem is in a usable state |
| bool mInitialized; |
| |
| sp<CameraProviderManager> mCameraProviderManager; |
| |
| class ServiceListener : public virtual IBinder::DeathRecipient { |
| public: |
| ServiceListener(sp<CameraService> parent, sp<hardware::ICameraServiceListener> listener, |
| int uid, int pid, bool isVendorClient, bool openCloseCallbackAllowed) |
| : mParent(parent), mListener(listener), mListenerUid(uid), mListenerPid(pid), |
| mIsVendorListener(isVendorClient), |
| mOpenCloseCallbackAllowed(openCloseCallbackAllowed) { } |
| |
| status_t initialize(bool isProcessLocalTest) { |
| if (isProcessLocalTest) { |
| return OK; |
| } |
| return IInterface::asBinder(mListener)->linkToDeath(this); |
| } |
| |
| template<typename... args_t> |
| void handleBinderStatus(const binder::Status &ret, const char *logOnError, |
| args_t... args) { |
| if (!ret.isOk() && |
| (ret.exceptionCode() != binder::Status::Exception::EX_TRANSACTION_FAILED |
| || !mLastTransactFailed)) { |
| ALOGE(logOnError, args...); |
| } |
| |
| // If the transaction failed, the process may have died (or other things, see |
| // b/28321379). Mute consecutive errors from this listener to avoid log spam. |
| if (ret.exceptionCode() == binder::Status::Exception::EX_TRANSACTION_FAILED) { |
| if (!mLastTransactFailed) { |
| ALOGE("%s: Muting similar errors from listener %d:%d", __FUNCTION__, |
| mListenerUid, mListenerPid); |
| } |
| mLastTransactFailed = true; |
| } else { |
| // Reset mLastTransactFailed when binder becomes healthy again. |
| mLastTransactFailed = false; |
| } |
| } |
| |
| virtual void binderDied(const wp<IBinder> &/*who*/) { |
| auto parent = mParent.promote(); |
| if (parent.get() != nullptr) { |
| parent->removeListener(mListener); |
| } |
| } |
| |
| int getListenerUid() { return mListenerUid; } |
| int getListenerPid() { return mListenerPid; } |
| sp<hardware::ICameraServiceListener> getListener() { return mListener; } |
| bool isVendorListener() { return mIsVendorListener; } |
| bool isOpenCloseCallbackAllowed() { return mOpenCloseCallbackAllowed; } |
| |
| private: |
| wp<CameraService> mParent; |
| sp<hardware::ICameraServiceListener> mListener; |
| int mListenerUid = -1; |
| int mListenerPid = -1; |
| bool mIsVendorListener = false; |
| bool mOpenCloseCallbackAllowed = false; |
| |
| // Flag for preventing log spam when binder becomes unhealthy |
| bool mLastTransactFailed = false; |
| }; |
| |
| // Guarded by mStatusListenerMutex |
| std::vector<sp<ServiceListener>> mListenerList; |
| |
| Mutex mStatusListenerLock; |
| |
| /** |
| * Update the status for the given camera id (if that device exists), and broadcast the |
| * status update to all current ICameraServiceListeners if the status has changed. Any |
| * statuses in rejectedSourceStates will be ignored. |
| * |
| * This method must be idempotent. |
| * This method acquires mStatusLock and mStatusListenerLock. |
| */ |
| void updateStatus(StatusInternal status, |
| const std::string& cameraId, |
| std::initializer_list<StatusInternal> |
| rejectedSourceStates); |
| void updateStatus(StatusInternal status, |
| const std::string& cameraId); |
| |
| /** |
| * Update the opened/closed status of the given camera id. |
| * |
| * This method acqiures mStatusListenerLock. |
| */ |
| void updateOpenCloseStatus(const std::string& cameraId, bool open, |
| const std::string& packageName); |
| |
| // flashlight control |
| sp<CameraFlashlight> mFlashlight; |
| // guard mTorchStatusMap |
| Mutex mTorchStatusMutex; |
| // guard mTorchClientMap |
| Mutex mTorchClientMapMutex; |
| // guard mTorchUidMap |
| Mutex mTorchUidMapMutex; |
| // camera id -> torch status |
| KeyedVector<std::string, TorchModeStatus> |
| mTorchStatusMap; |
| // camera id -> torch client binder |
| // only store the last client that turns on each camera's torch mode |
| KeyedVector<std::string, sp<IBinder>> mTorchClientMap; |
| // camera id -> [incoming uid, current uid] pair |
| std::map<std::string, std::pair<int, int>> mTorchUidMap; |
| |
| // check and handle if torch client's process has died |
| void handleTorchClientBinderDied(const wp<IBinder> &who); |
| |
| // handle torch mode status change and invoke callbacks. mTorchStatusMutex |
| // should be locked. |
| void onTorchStatusChangedLocked(const std::string& cameraId, |
| TorchModeStatus newStatus, |
| SystemCameraKind systemCameraKind); |
| |
| // get a camera's torch status. mTorchStatusMutex should be locked. |
| status_t getTorchStatusLocked(const std::string &cameraId, |
| TorchModeStatus *status) const; |
| |
| // set a camera's torch status. mTorchStatusMutex should be locked. |
| status_t setTorchStatusLocked(const std::string &cameraId, |
| TorchModeStatus status); |
| |
| // notify physical camera status when the physical camera is public. |
| // Expects mStatusListenerLock to be locked. |
| void notifyPhysicalCameraStatusLocked(int32_t status, const std::string& physicalCameraId, |
| const std::list<std::string>& logicalCameraIds, SystemCameraKind deviceKind); |
| |
| // get list of logical cameras which are backed by physicalCameraId |
| std::list<std::string> getLogicalCameras(const std::string& physicalCameraId); |
| |
| |
| // IBinder::DeathRecipient implementation |
| virtual void binderDied(const wp<IBinder> &who); |
| |
| /** |
| * Initialize and cache the metadata used by the HAL1 shim for a given cameraId. |
| * |
| * Sets Status to a service-specific error on failure |
| */ |
| binder::Status initializeShimMetadata(int cameraId); |
| |
| /** |
| * Get the cached CameraParameters for the camera. If they haven't been |
| * cached yet, then initialize them for the first time. |
| * |
| * Sets Status to a service-specific error on failure |
| */ |
| binder::Status getLegacyParametersLazy(int cameraId, /*out*/CameraParameters* parameters); |
| |
| // Blocks all clients from the UID |
| void blockClientsForUid(uid_t uid); |
| |
| // Blocks all active clients. |
| void blockAllClients(); |
| |
| // Overrides the UID state as if it is idle |
| status_t handleSetUidState(const Vector<String16>& args, int err); |
| |
| // Clears the override for the UID state |
| status_t handleResetUidState(const Vector<String16>& args, int err); |
| |
| // Gets the UID state |
| status_t handleGetUidState(const Vector<String16>& args, int out, int err); |
| |
| // Set the rotate-and-crop AUTO override behavior |
| status_t handleSetRotateAndCrop(const Vector<String16>& args); |
| |
| // Get the rotate-and-crop AUTO override behavior |
| status_t handleGetRotateAndCrop(int out); |
| |
| // Set the autoframing AUTO override behaviour. |
| status_t handleSetAutoframing(const Vector<String16>& args); |
| |
| // Get the autoframing AUTO override behaviour |
| status_t handleGetAutoframing(int out); |
| |
| // Set the mask for image dump to disk |
| status_t handleSetImageDumpMask(const Vector<String16>& args); |
| |
| // Get the mask for image dump to disk |
| status_t handleGetImageDumpMask(int out); |
| |
| // Set the camera mute state |
| status_t handleSetCameraMute(const Vector<String16>& args); |
| |
| // Set the stream use case overrides |
| status_t handleSetStreamUseCaseOverrides(const Vector<String16>& args); |
| |
| // Clear the stream use case overrides |
| void handleClearStreamUseCaseOverrides(); |
| |
| // Set or clear the zoom override flag |
| status_t handleSetZoomOverride(const Vector<String16>& args); |
| |
| // Set Camera Id remapping using 'cmd' |
| status_t handleCameraIdRemapping(const Vector<String16>& args, int errFd); |
| |
| // Handle 'watch' command as passed through 'cmd' |
| status_t handleWatchCommand(const Vector<String16> &args, int inFd, int outFd); |
| |
| // Set the camera service watchdog |
| status_t handleSetCameraServiceWatchdog(const Vector<String16>& args); |
| |
| // Enable tag monitoring of the given tags in provided clients |
| status_t startWatchingTags(const Vector<String16> &args, int outFd); |
| |
| // Disable tag monitoring |
| status_t stopWatchingTags(int outFd); |
| |
| // Clears mWatchedClientsDumpCache |
| status_t clearCachedMonitoredTagDumps(int outFd); |
| |
| // Print events of monitored tags in all cached and attached clients |
| status_t printWatchedTags(int outFd); |
| |
| // Print events of monitored tags in all attached clients as they are captured. New events are |
| // fetched every `refreshMillis` ms |
| // NOTE: This function does not terminate until user passes '\n' to inFd. |
| status_t printWatchedTagsUntilInterrupt(const Vector<String16> &args, int inFd, int outFd); |
| |
| // Parses comma separated clients list and adds them to mWatchedClientPackages. |
| // Does not acquire mLogLock before modifying mWatchedClientPackages. It is the caller's |
| // responsibility to acquire mLogLock before calling this function. |
| void parseClientsToWatchLocked(const std::string &clients); |
| |
| // Prints the shell command help |
| status_t printHelp(int out); |
| |
| // Returns true if client should monitor tags based on the contents of mWatchedClientPackages. |
| // Acquires mLogLock before querying mWatchedClientPackages. |
| bool isClientWatched(const BasicClient *client); |
| |
| // Returns true if client should monitor tags based on the contents of mWatchedClientPackages. |
| // Does not acquire mLogLock before querying mWatchedClientPackages. It is the caller's |
| // responsibility to acquire mLogLock before calling this functions. |
| bool isClientWatchedLocked(const BasicClient *client); |
| |
| /** |
| * Get the current system time as a formatted string. |
| */ |
| static std::string getFormattedCurrentTime(); |
| |
| static binder::Status makeClient(const sp<CameraService>& cameraService, |
| const sp<IInterface>& cameraCb, const std::string& packageName, |
| bool systemNativeClient, const std::optional<std::string>& featureId, |
| const std::string& cameraId, int api1CameraId, int facing, int sensorOrientation, |
| int clientPid, uid_t clientUid, int servicePid, |
| std::pair<int, IPCTransport> deviceVersionAndIPCTransport, apiLevel effectiveApiLevel, |
| bool overrideForPerfClass, bool overrideToPortrait, bool forceSlowJpegMode, |
| const std::string& originalCameraId, |
| /*out*/ sp<BasicClient>* client); |
| |
| static std::string toString(std::set<userid_t> intSet); |
| static int32_t mapToInterface(TorchModeStatus status); |
| static StatusInternal mapToInternal(CameraDeviceStatus status); |
| static int32_t mapToInterface(StatusInternal status); |
| |
| |
| void broadcastTorchModeStatus(const std::string& cameraId, |
| TorchModeStatus status, SystemCameraKind systemCameraKind); |
| |
| void broadcastTorchStrengthLevel(const std::string& cameraId, int32_t newTorchStrengthLevel); |
| |
| void disconnectClient(const std::string& id, sp<BasicClient> clientToDisconnect); |
| |
| // Regular online and offline devices must not be in conflict at camera service layer. |
| // Use separate keys for offline devices. |
| static const std::string kOfflineDevice; |
| |
| // Sentinel value to be stored in `mWatchedClientsPackages` to indicate that all clients should |
| // be watched. |
| static const std::string kWatchAllClientsFlag; |
| |
| // TODO: right now each BasicClient holds one AppOpsManager instance. |
| // We can refactor the code so all of clients share this instance |
| AppOpsManager mAppOps; |
| |
| // Aggreated audio restriction mode for all camera clients |
| int32_t mAudioRestriction; |
| |
| // Current override cmd rotate-and-crop mode; AUTO means no override |
| uint8_t mOverrideRotateAndCropMode = ANDROID_SCALER_ROTATE_AND_CROP_AUTO; |
| |
| // Current autoframing mode |
| uint8_t mOverrideAutoframingMode = ANDROID_CONTROL_AUTOFRAMING_AUTO; |
| |
| // Current image dump mask |
| uint8_t mImageDumpMask = 0; |
| |
| // Current camera mute mode |
| bool mOverrideCameraMuteMode = false; |
| |
| // Camera Service watchdog flag |
| bool mCameraServiceWatchdogEnabled = true; |
| |
| // Current stream use case overrides |
| std::vector<int64_t> mStreamUseCaseOverrides; |
| |
| // Current zoom override value |
| int32_t mZoomOverrideValue = -1; |
| |
| /** |
| * A listener class that implements the IBinder::DeathRecipient interface |
| * for use to call back the error state injected by the external camera, and |
| * camera service can kill the injection when binder signals process death. |
| */ |
| class InjectionStatusListener : public virtual IBinder::DeathRecipient { |
| public: |
| InjectionStatusListener(sp<CameraService> parent) : mParent(parent) {} |
| |
| void addListener(const sp<hardware::camera2::ICameraInjectionCallback>& callback); |
| void removeListener(); |
| void notifyInjectionError(const std::string &injectedCamId, status_t err); |
| |
| // IBinder::DeathRecipient implementation |
| virtual void binderDied(const wp<IBinder>& who); |
| |
| private: |
| Mutex mListenerLock; |
| wp<CameraService> mParent; |
| sp<hardware::camera2::ICameraInjectionCallback> mCameraInjectionCallback; |
| }; |
| |
| sp<InjectionStatusListener> mInjectionStatusListener; |
| |
| /** |
| * A class that implements the hardware::camera2::BnCameraInjectionSession interface |
| */ |
| class CameraInjectionSession : public hardware::camera2::BnCameraInjectionSession { |
| public: |
| CameraInjectionSession(sp<CameraService> parent) : mParent(parent) {} |
| virtual ~CameraInjectionSession() {} |
| binder::Status stopInjection() override; |
| |
| private: |
| Mutex mInjectionSessionLock; |
| wp<CameraService> mParent; |
| }; |
| |
| // When injecting the camera, it will check whether the injecting camera status is unavailable. |
| // If it is, the disconnect function will be called to to prevent camera access on the device. |
| status_t checkIfInjectionCameraIsPresent(const std::string& externalCamId, |
| sp<BasicClient> clientSp); |
| |
| void clearInjectionParameters(); |
| |
| // This is the existing camera id being replaced. |
| std::string mInjectionInternalCamId; |
| // This is the external camera Id replacing the internalId. |
| std::string mInjectionExternalCamId; |
| bool mInjectionInitPending = false; |
| // Guard mInjectionInternalCamId and mInjectionInitPending. |
| Mutex mInjectionParametersLock; |
| |
| // Track the folded/unfoled device state. 0 == UNFOLDED, 4 == FOLDED |
| int64_t mDeviceState; |
| |
| void updateTorchUidMapLocked(const std::string& cameraId, int uid); |
| }; |
| |
| } // namespace android |
| |
| #endif |
