| /* |
| * Copyright 2021 HIMSA II K/S - www.himsa.com. |
| * Represented by EHIMA - www.ehima.com |
| * |
| * 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. |
| */ |
| |
| package com.android.bluetooth.csip; |
| |
| import static android.Manifest.permission.BLUETOOTH_CONNECT; |
| |
| import android.annotation.CallbackExecutor; |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.bluetooth.BluetoothCsipSetCoordinator; |
| import android.bluetooth.BluetoothDevice; |
| import android.bluetooth.BluetoothProfile; |
| import android.bluetooth.BluetoothStatusCodes; |
| import android.bluetooth.BluetoothUuid; |
| import android.bluetooth.IBluetoothCsipSetCoordinator; |
| import android.bluetooth.IBluetoothCsipSetCoordinatorCallback; |
| import android.bluetooth.IBluetoothCsipSetCoordinatorLockCallback; |
| import android.content.AttributionSource; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.os.HandlerThread; |
| import android.os.ParcelUuid; |
| import android.os.RemoteException; |
| import android.util.Log; |
| import android.util.Pair; |
| |
| import com.android.bluetooth.Utils; |
| import com.android.bluetooth.btservice.AdapterService; |
| import com.android.bluetooth.btservice.ProfileService; |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.modules.utils.SynchronousResultReceiver; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.Set; |
| import java.util.UUID; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.concurrent.Executor; |
| import java.util.stream.Collectors; |
| |
| /** |
| * Provides Bluetooth CSIP Set Coordinator profile, as a service. |
| * @hide |
| */ |
| public class CsipSetCoordinatorService extends ProfileService { |
| private static final boolean DBG = false; |
| private static final String TAG = "CsipSetCoordinatorService"; |
| |
| // Upper limit of all CSIP devices: Bonded or Connected |
| private static final int MAX_CSIS_STATE_MACHINES = 10; |
| private static CsipSetCoordinatorService sCsipSetCoordinatorService; |
| |
| private AdapterService mAdapterService; |
| private HandlerThread mStateMachinesThread; |
| private BluetoothDevice mPreviousAudioDevice; |
| |
| @VisibleForTesting CsipSetCoordinatorNativeInterface mCsipSetCoordinatorNativeInterface; |
| |
| private final Map<BluetoothDevice, CsipSetCoordinatorStateMachine> mStateMachines = |
| new HashMap<>(); |
| |
| private final Map<Integer, ParcelUuid> mGroupIdToUuidMap = new HashMap<>(); |
| private final Map<BluetoothDevice, Set<Integer>> mDeviceGroupIdMap = new ConcurrentHashMap<>(); |
| private final Map<Integer, Integer> mGroupIdToGroupSize = new HashMap<>(); |
| private final Map<ParcelUuid, Map<Executor, IBluetoothCsipSetCoordinatorCallback>> mCallbacks = |
| new HashMap<>(); |
| private final Map<Integer, Pair<UUID, IBluetoothCsipSetCoordinatorLockCallback>> mLocks = |
| new ConcurrentHashMap<>(); |
| |
| private BroadcastReceiver mBondStateChangedReceiver; |
| private BroadcastReceiver mConnectionStateChangedReceiver; |
| |
| @Override |
| protected IProfileServiceBinder initBinder() { |
| return new BluetoothCsisBinder(this); |
| } |
| |
| @Override |
| protected void create() { |
| if (DBG) { |
| Log.d(TAG, "create()"); |
| } |
| } |
| |
| @Override |
| protected boolean start() { |
| if (DBG) { |
| Log.d(TAG, "start()"); |
| } |
| if (sCsipSetCoordinatorService != null) { |
| throw new IllegalStateException("start() called twice"); |
| } |
| |
| // Get AdapterService, CsipSetCoordinatorNativeInterface. |
| // None of them can be null. |
| mAdapterService = Objects.requireNonNull(AdapterService.getAdapterService(), |
| "AdapterService cannot be null when CsipSetCoordinatorService starts"); |
| mCsipSetCoordinatorNativeInterface = Objects.requireNonNull( |
| CsipSetCoordinatorNativeInterface.getInstance(), |
| "CsipSetCoordinatorNativeInterface cannot be null when" |
| .concat("CsipSetCoordinatorService starts")); |
| |
| // Start handler thread for state machines |
| mStateMachines.clear(); |
| mStateMachinesThread = new HandlerThread("CsipSetCoordinatorService.StateMachines"); |
| mStateMachinesThread.start(); |
| |
| // Setup broadcast receivers |
| IntentFilter filter = new IntentFilter(); |
| filter.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED); |
| mBondStateChangedReceiver = new BondStateChangedReceiver(); |
| registerReceiver(mBondStateChangedReceiver, filter); |
| filter = new IntentFilter(); |
| filter.addAction(BluetoothCsipSetCoordinator.ACTION_CSIS_CONNECTION_STATE_CHANGED); |
| mConnectionStateChangedReceiver = new ConnectionStateChangedReceiver(); |
| registerReceiver(mConnectionStateChangedReceiver, filter); |
| |
| // Mark service as started |
| setCsipSetCoordinatorService(this); |
| |
| // Initialize native interface |
| mCsipSetCoordinatorNativeInterface.init(); |
| mAdapterService.notifyActivityAttributionInfo(getAttributionSource(), |
| AdapterService.ACTIVITY_ATTRIBUTION_NO_ACTIVE_DEVICE_ADDRESS); |
| |
| return true; |
| } |
| |
| @Override |
| protected boolean stop() { |
| if (DBG) { |
| Log.d(TAG, "stop()"); |
| } |
| if (sCsipSetCoordinatorService == null) { |
| Log.w(TAG, "stop() called before start()"); |
| return true; |
| } |
| |
| mAdapterService.notifyActivityAttributionInfo(getAttributionSource(), |
| AdapterService.ACTIVITY_ATTRIBUTION_NO_ACTIVE_DEVICE_ADDRESS); |
| // Cleanup native interface |
| mCsipSetCoordinatorNativeInterface.cleanup(); |
| mCsipSetCoordinatorNativeInterface = null; |
| |
| // Mark service as stopped |
| setCsipSetCoordinatorService(null); |
| |
| // Unregister broadcast receivers |
| unregisterReceiver(mBondStateChangedReceiver); |
| mBondStateChangedReceiver = null; |
| unregisterReceiver(mConnectionStateChangedReceiver); |
| mConnectionStateChangedReceiver = null; |
| |
| // Destroy state machines and stop handler thread |
| synchronized (mStateMachines) { |
| for (CsipSetCoordinatorStateMachine sm : mStateMachines.values()) { |
| sm.doQuit(); |
| sm.cleanup(); |
| } |
| mStateMachines.clear(); |
| } |
| |
| if (mStateMachinesThread != null) { |
| mStateMachinesThread.quitSafely(); |
| mStateMachinesThread = null; |
| } |
| |
| mDeviceGroupIdMap.clear(); |
| mCallbacks.clear(); |
| mGroupIdToGroupSize.clear(); |
| mGroupIdToUuidMap.clear(); |
| |
| mLocks.clear(); |
| |
| // Clear AdapterService, CsipSetCoordinatorNativeInterface |
| mCsipSetCoordinatorNativeInterface = null; |
| mAdapterService = null; |
| |
| return true; |
| } |
| |
| @Override |
| protected void cleanup() { |
| if (DBG) { |
| Log.d(TAG, "cleanup()"); |
| } |
| } |
| |
| /** |
| * Get the CsipSetCoordinatorService instance |
| * @return CsipSetCoordinatorService instance |
| */ |
| public static synchronized CsipSetCoordinatorService getCsipSetCoordinatorService() { |
| if (sCsipSetCoordinatorService == null) { |
| Log.w(TAG, "getCsipSetCoordinatorService(): service is NULL"); |
| return null; |
| } |
| |
| if (!sCsipSetCoordinatorService.isAvailable()) { |
| Log.w(TAG, "getCsipSetCoordinatorService(): service is not available"); |
| return null; |
| } |
| return sCsipSetCoordinatorService; |
| } |
| |
| private static synchronized void setCsipSetCoordinatorService( |
| CsipSetCoordinatorService instance) { |
| if (DBG) { |
| Log.d(TAG, "setCsipSetCoordinatorService(): set to: " + instance); |
| } |
| sCsipSetCoordinatorService = instance; |
| } |
| |
| /** |
| * Connect the given Bluetooth device. |
| * |
| * @return true if connection is successful, false otherwise. |
| */ |
| public boolean connect(BluetoothDevice device) { |
| enforceCallingOrSelfPermission(BLUETOOTH_PRIVILEGED, "Need BLUETOOTH_PRIVILEGED permission"); |
| if (DBG) { |
| Log.d(TAG, "connect(): " + device); |
| } |
| if (device == null) { |
| return false; |
| } |
| |
| if (getConnectionPolicy(device) == BluetoothProfile.CONNECTION_POLICY_FORBIDDEN) { |
| return false; |
| } |
| ParcelUuid[] featureUuids = mAdapterService.getRemoteUuids(device); |
| if (!Utils.arrayContains(featureUuids, BluetoothUuid.COORDINATED_SET)) { |
| Log.e(TAG, "Cannot connect to " + device + " : Remote does not have CSIS UUID"); |
| return false; |
| } |
| |
| synchronized (mStateMachines) { |
| CsipSetCoordinatorStateMachine smConnect = getOrCreateStateMachine(device); |
| if (smConnect == null) { |
| Log.e(TAG, "Cannot connect to " + device + " : no state machine"); |
| } |
| smConnect.sendMessage(CsipSetCoordinatorStateMachine.CONNECT); |
| } |
| |
| return true; |
| } |
| |
| /** |
| * Disconnect the given Bluetooth device. |
| * |
| * @return true if disconnect is successful, false otherwise. |
| */ |
| public boolean disconnect(BluetoothDevice device) { |
| enforceCallingOrSelfPermission(BLUETOOTH_PRIVILEGED, "Need BLUETOOTH_PRIVILEGED permission"); |
| if (DBG) { |
| Log.d(TAG, "disconnect(): " + device); |
| } |
| if (device == null) { |
| return false; |
| } |
| synchronized (mStateMachines) { |
| CsipSetCoordinatorStateMachine sm = getOrCreateStateMachine(device); |
| if (sm != null) { |
| sm.sendMessage(CsipSetCoordinatorStateMachine.DISCONNECT); |
| } |
| } |
| |
| return true; |
| } |
| |
| public List<BluetoothDevice> getConnectedDevices() { |
| enforceCallingOrSelfPermission(BLUETOOTH_CONNECT, "Need BLUETOOTH_CONNECT permission"); |
| synchronized (mStateMachines) { |
| List<BluetoothDevice> devices = new ArrayList<>(); |
| for (CsipSetCoordinatorStateMachine sm : mStateMachines.values()) { |
| if (sm.isConnected()) { |
| devices.add(sm.getDevice()); |
| } |
| } |
| return devices; |
| } |
| } |
| |
| /** |
| * Check whether can connect to a peer device. |
| * The check considers a number of factors during the evaluation. |
| * |
| * @param device the peer device to connect to |
| * @return true if connection is allowed, otherwise false |
| */ |
| @VisibleForTesting(visibility = VisibleForTesting.Visibility.PACKAGE) |
| public boolean okToConnect(BluetoothDevice device) { |
| // Check if this is an incoming connection in Quiet mode. |
| if (mAdapterService.isQuietModeEnabled()) { |
| Log.e(TAG, "okToConnect: cannot connect to " + device + " : quiet mode enabled"); |
| return false; |
| } |
| // Check connectionPolicy and accept or reject the connection. |
| int connectionPolicy = getConnectionPolicy(device); |
| int bondState = mAdapterService.getBondState(device); |
| // Allow this connection only if the device is bonded. Any attempt to connect while |
| // bonding would potentially lead to an unauthorized connection. |
| if (bondState != BluetoothDevice.BOND_BONDED) { |
| Log.w(TAG, "okToConnect: return false, bondState=" + bondState); |
| return false; |
| } else if (connectionPolicy != BluetoothProfile.CONNECTION_POLICY_UNKNOWN |
| && connectionPolicy != BluetoothProfile.CONNECTION_POLICY_ALLOWED) { |
| // Otherwise, reject the connection if connectionPolicy is not valid. |
| Log.w(TAG, "okToConnect: return false, connectionPolicy=" + connectionPolicy); |
| return false; |
| } |
| return true; |
| } |
| |
| List<BluetoothDevice> getDevicesMatchingConnectionStates(int[] states) { |
| enforceCallingOrSelfPermission(BLUETOOTH_CONNECT, "Need BLUETOOTH_CONNECT permission"); |
| ArrayList<BluetoothDevice> devices = new ArrayList<>(); |
| if (states == null) { |
| return devices; |
| } |
| final BluetoothDevice[] bondedDevices = mAdapterService.getBondedDevices(); |
| if (bondedDevices == null) { |
| return devices; |
| } |
| synchronized (mStateMachines) { |
| for (BluetoothDevice device : bondedDevices) { |
| final ParcelUuid[] featureUuids = device.getUuids(); |
| if (!Utils.arrayContains(featureUuids, BluetoothUuid.COORDINATED_SET)) { |
| continue; |
| } |
| int connectionState = BluetoothProfile.STATE_DISCONNECTED; |
| CsipSetCoordinatorStateMachine sm = mStateMachines.get(device); |
| if (sm != null) { |
| connectionState = sm.getConnectionState(); |
| } |
| for (int state : states) { |
| if (connectionState == state) { |
| devices.add(device); |
| break; |
| } |
| } |
| } |
| return devices; |
| } |
| } |
| |
| /** |
| * Register for CSIS |
| */ |
| public void registerCsisMemberObserver(@CallbackExecutor Executor executor, ParcelUuid uuid, |
| IBluetoothCsipSetCoordinatorCallback callback) { |
| Map<Executor, IBluetoothCsipSetCoordinatorCallback> entries = |
| mCallbacks.getOrDefault(uuid, null); |
| if (entries == null) { |
| entries = new HashMap<>(); |
| entries.put(executor, callback); |
| Log.d(TAG, " Csis adding new callback for " + uuid); |
| mCallbacks.put(uuid, entries); |
| return; |
| } |
| |
| if (entries.containsKey(executor)) { |
| if (entries.get(executor) == callback) { |
| Log.d(TAG, " Execute and callback already added " + uuid); |
| return; |
| } |
| } |
| |
| Log.d(TAG, " Csis adding callback " + uuid); |
| entries.put(executor, callback); |
| } |
| |
| /** |
| * Get the list of devices that have state machines. |
| * |
| * @return the list of devices that have state machines |
| */ |
| @VisibleForTesting |
| List<BluetoothDevice> getDevices() { |
| List<BluetoothDevice> devices = new ArrayList<>(); |
| synchronized (mStateMachines) { |
| for (CsipSetCoordinatorStateMachine sm : mStateMachines.values()) { |
| devices.add(sm.getDevice()); |
| } |
| return devices; |
| } |
| } |
| |
| /** |
| * Get the current connection state of the profile |
| * |
| * @param device is the remote bluetooth device |
| * @return {@link BluetoothProfile#STATE_DISCONNECTED} if this profile is disconnected, |
| * {@link BluetoothProfile#STATE_CONNECTING} if this profile is being connected, |
| * {@link BluetoothProfile#STATE_CONNECTED} if this profile is connected, or |
| * {@link BluetoothProfile#STATE_DISCONNECTING} if this profile is being disconnected |
| */ |
| public int getConnectionState(BluetoothDevice device) { |
| enforceCallingOrSelfPermission(BLUETOOTH_CONNECT, "Need BLUETOOTH_CONNECT permission"); |
| synchronized (mStateMachines) { |
| CsipSetCoordinatorStateMachine sm = mStateMachines.get(device); |
| if (sm == null) { |
| return BluetoothProfile.STATE_DISCONNECTED; |
| } |
| return sm.getConnectionState(); |
| } |
| } |
| |
| /** |
| * Set connection policy of the profile and connects it if connectionPolicy is |
| * {@link BluetoothProfile#CONNECTION_POLICY_ALLOWED} or disconnects if connectionPolicy is |
| * {@link BluetoothProfile#CONNECTION_POLICY_FORBIDDEN} |
| * |
| * <p> The device should already be paired. |
| * Connection policy can be one of: |
| * {@link BluetoothProfile#CONNECTION_POLICY_ALLOWED}, |
| * {@link BluetoothProfile#CONNECTION_POLICY_FORBIDDEN}, |
| * {@link BluetoothProfile#CONNECTION_POLICY_UNKNOWN} |
| * |
| * @param device the remote device |
| * @param connectionPolicy is the connection policy to set to for this profile |
| * @return true on success, otherwise false |
| */ |
| public boolean setConnectionPolicy(BluetoothDevice device, int connectionPolicy) { |
| enforceCallingOrSelfPermission(BLUETOOTH_PRIVILEGED, "Need BLUETOOTH_PRIVILEGED permission"); |
| if (DBG) { |
| Log.d(TAG, "Saved connectionPolicy " + device + " = " + connectionPolicy); |
| } |
| mAdapterService.getDatabase().setProfileConnectionPolicy( |
| device, BluetoothProfile.CSIP_SET_COORDINATOR, connectionPolicy); |
| if (connectionPolicy == BluetoothProfile.CONNECTION_POLICY_ALLOWED) { |
| connect(device); |
| } else if (connectionPolicy == BluetoothProfile.CONNECTION_POLICY_FORBIDDEN) { |
| disconnect(device); |
| } |
| return true; |
| } |
| |
| /** |
| * Get the connection policy of the profile. |
| * |
| * @param device the remote device |
| * @return connection policy of the specified device |
| */ |
| public int getConnectionPolicy(BluetoothDevice device) { |
| enforceCallingOrSelfPermission(BLUETOOTH_PRIVILEGED, "Need BLUETOOTH_PRIVILEGED permission"); |
| return mAdapterService.getDatabase().getProfileConnectionPolicy( |
| device, BluetoothProfile.CSIP_SET_COORDINATOR); |
| } |
| |
| /** |
| * Lock a given group. |
| * @param groupId group ID to lock |
| * @param callback callback with the lock request result |
| * @return unique lock identifier used for unlocking |
| * |
| * @hide |
| */ |
| public @Nullable UUID groupLock( |
| int groupId, @NonNull IBluetoothCsipSetCoordinatorLockCallback callback) { |
| if (callback == null) { |
| return null; |
| } |
| |
| UUID uuid = UUID.randomUUID(); |
| synchronized (mLocks) { |
| if (mLocks.containsKey(groupId)) { |
| try { |
| callback.onGroupLockSet(groupId, |
| BluetoothStatusCodes.ERROR_CSIP_GROUP_LOCKED_BY_OTHER, |
| true); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| return null; |
| } |
| |
| mLocks.put(groupId, new Pair<>(uuid, callback)); |
| } |
| |
| mCsipSetCoordinatorNativeInterface.groupLockSet(groupId, true); |
| return uuid; |
| } |
| |
| /** |
| * Unlock a given group. |
| * @param lockUuid unique lock identifier used for unlocking |
| * |
| * @hide |
| */ |
| public void groupUnlock(@NonNull UUID lockUuid) { |
| if (lockUuid == null) { |
| return; |
| } |
| |
| synchronized (mLocks) { |
| for (Map.Entry<Integer, Pair<UUID, IBluetoothCsipSetCoordinatorLockCallback>> entry : |
| mLocks.entrySet()) { |
| Pair<UUID, IBluetoothCsipSetCoordinatorLockCallback> uuidCbPair = entry.getValue(); |
| if (uuidCbPair.first.equals(lockUuid)) { |
| mCsipSetCoordinatorNativeInterface.groupLockSet(entry.getKey(), false); |
| return; |
| } |
| } |
| } |
| } |
| |
| /** |
| * Get collection of group IDs for a given UUID |
| * @param uuid |
| * @return list of group IDs |
| */ |
| public List<Integer> getAllGroupIds(ParcelUuid uuid) { |
| return mGroupIdToUuidMap.entrySet() |
| .stream() |
| .filter(e -> uuid.equals(e.getValue())) |
| .map(Map.Entry::getKey) |
| .collect(Collectors.toList()); |
| } |
| |
| /** |
| * Get device's groups/ |
| * @param device |
| * @return map of group id and related uuids. |
| */ |
| public Map<Integer, ParcelUuid> getGroupUuidMapByDevice(BluetoothDevice device) { |
| Set<Integer> device_groups = mDeviceGroupIdMap.getOrDefault(device, new HashSet<>()); |
| return mGroupIdToUuidMap.entrySet() |
| .stream() |
| .filter(e -> device_groups.contains(e.getKey())) |
| .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue)); |
| } |
| |
| /** |
| * Get group desired size |
| * @param groupId group ID |
| * @return the number of group members |
| */ |
| public int getDesiredGroupSize(int groupId) { |
| return mGroupIdToGroupSize.getOrDefault(groupId, |
| IBluetoothCsipSetCoordinator.CSIS_GROUP_SIZE_UNKNOWN); |
| } |
| |
| private void handleDeviceAvailable(BluetoothDevice device, int groupId, UUID uuid) { |
| ParcelUuid parcel_uuid = new ParcelUuid(uuid); |
| if (!getAllGroupIds(parcel_uuid).contains(groupId)) { |
| mGroupIdToUuidMap.put(groupId, parcel_uuid); |
| } |
| |
| if (!mDeviceGroupIdMap.containsKey(device)) { |
| mDeviceGroupIdMap.put(device, new HashSet<Integer>()); |
| } |
| |
| Set<Integer> all_device_groups = mDeviceGroupIdMap.get(device); |
| all_device_groups.add(groupId); |
| } |
| |
| private void executeCallback(Executor exec, IBluetoothCsipSetCoordinatorCallback callback, |
| BluetoothDevice device, int groupId) throws RemoteException { |
| exec.execute(() -> { |
| try { |
| callback.onCsisSetMemberAvailable(device, groupId); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| }); |
| } |
| |
| private void handleSetMemberAvailable(BluetoothDevice device, int groupId) { |
| if (!mGroupIdToUuidMap.containsKey(groupId)) { |
| Log.e(TAG, " UUID not found for group id " + groupId); |
| return; |
| } |
| |
| if (mCallbacks.isEmpty()) { |
| return; |
| } |
| |
| ParcelUuid uuid = mGroupIdToUuidMap.get(groupId); |
| if (mCallbacks.get(uuid) == null) { |
| Log.e(TAG, " There is no clients for uuid: " + uuid); |
| return; |
| } |
| |
| for (Map.Entry<Executor, IBluetoothCsipSetCoordinatorCallback> entry : |
| mCallbacks.get(uuid).entrySet()) { |
| if (DBG) { |
| Log.d(TAG, " executing " + uuid + " " + entry.getKey()); |
| } |
| try { |
| executeCallback(entry.getKey(), entry.getValue(), device, groupId); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| } |
| |
| int getApiStatusCode(int nativeResult) { |
| switch (nativeResult) { |
| case IBluetoothCsipSetCoordinator.CSIS_GROUP_LOCK_SUCCESS: |
| return BluetoothStatusCodes.SUCCESS; |
| case IBluetoothCsipSetCoordinator.CSIS_GROUP_LOCK_FAILED_INVALID_GROUP: |
| return BluetoothStatusCodes.ERROR_CSIP_INVALID_GROUP_ID; |
| case IBluetoothCsipSetCoordinator.CSIS_GROUP_LOCK_FAILED_GROUP_NOT_CONNECTED: |
| return BluetoothStatusCodes.ERROR_DEVICE_NOT_CONNECTED; |
| case IBluetoothCsipSetCoordinator.CSIS_GROUP_LOCK_FAILED_LOCKED_BY_OTHER: |
| return BluetoothStatusCodes.ERROR_CSIP_GROUP_LOCKED_BY_OTHER; |
| case IBluetoothCsipSetCoordinator.CSIS_LOCKED_GROUP_MEMBER_LOST: |
| return BluetoothStatusCodes.ERROR_CSIP_LOCKED_GROUP_MEMBER_LOST; |
| case IBluetoothCsipSetCoordinator.CSIS_GROUP_LOCK_FAILED_OTHER_REASON: |
| default: |
| Log.e(TAG, " Unknown status code: " + nativeResult); |
| return BluetoothStatusCodes.ERROR_UNKNOWN; |
| } |
| } |
| |
| void handleGroupLockChanged(int groupId, int status, boolean isLocked) { |
| synchronized (mLocks) { |
| if (!mLocks.containsKey(groupId)) { |
| return; |
| } |
| |
| IBluetoothCsipSetCoordinatorLockCallback cb = mLocks.get(groupId).second; |
| try { |
| cb.onGroupLockSet(groupId, getApiStatusCode(status), isLocked); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| |
| // Unlocking invalidates the existing lock if exist |
| if (!isLocked) { |
| mLocks.remove(groupId); |
| } |
| } |
| } |
| |
| void messageFromNative(CsipSetCoordinatorStackEvent stackEvent) { |
| BluetoothDevice device = stackEvent.device; |
| Log.d(TAG, "Message from native: " + stackEvent); |
| |
| Intent intent = null; |
| int groupId = stackEvent.valueInt1; |
| if (stackEvent.type == CsipSetCoordinatorStackEvent.EVENT_TYPE_DEVICE_AVAILABLE) { |
| Objects.requireNonNull(device, "Device should never be null, event: " + stackEvent); |
| |
| intent = new Intent(BluetoothCsipSetCoordinator.ACTION_CSIS_DEVICE_AVAILABLE); |
| intent.putExtra(BluetoothDevice.EXTRA_DEVICE, stackEvent.device); |
| intent.putExtra(BluetoothCsipSetCoordinator.EXTRA_CSIS_GROUP_ID, groupId); |
| intent.putExtra( |
| BluetoothCsipSetCoordinator.EXTRA_CSIS_GROUP_SIZE, stackEvent.valueInt2); |
| intent.putExtra( |
| BluetoothCsipSetCoordinator.EXTRA_CSIS_GROUP_TYPE_UUID, stackEvent.valueUuid1); |
| |
| handleDeviceAvailable(device, groupId, stackEvent.valueUuid1); |
| } else if (stackEvent.type |
| == CsipSetCoordinatorStackEvent.EVENT_TYPE_SET_MEMBER_AVAILABLE) { |
| Objects.requireNonNull(device, "Device should never be null, event: " + stackEvent); |
| /* Notify registered parties */ |
| handleSetMemberAvailable(device, stackEvent.valueInt1); |
| |
| /* Sent intent as well */ |
| intent = new Intent(BluetoothCsipSetCoordinator.ACTION_CSIS_SET_MEMBER_AVAILABLE); |
| intent.putExtra(BluetoothDevice.EXTRA_DEVICE, device); |
| intent.putExtra(BluetoothCsipSetCoordinator.EXTRA_CSIS_GROUP_ID, groupId); |
| } else if (stackEvent.type == CsipSetCoordinatorStackEvent.EVENT_TYPE_GROUP_LOCK_CHANGED) { |
| int lock_status = stackEvent.valueInt2; |
| boolean lock_state = stackEvent.valueBool1; |
| handleGroupLockChanged(groupId, lock_status, lock_state); |
| } |
| |
| if (intent != null) { |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT |
| | Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND); |
| sendBroadcast(intent, BLUETOOTH_PRIVILEGED); |
| } |
| |
| synchronized (mStateMachines) { |
| CsipSetCoordinatorStateMachine sm = mStateMachines.get(device); |
| |
| if (stackEvent.type |
| == CsipSetCoordinatorStackEvent.EVENT_TYPE_CONNECTION_STATE_CHANGED) { |
| if (sm == null) { |
| switch (stackEvent.valueInt1) { |
| case CsipSetCoordinatorStackEvent.CONNECTION_STATE_CONNECTED: |
| case CsipSetCoordinatorStackEvent.CONNECTION_STATE_CONNECTING: |
| sm = getOrCreateStateMachine(device); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| if (sm == null) { |
| Log.e(TAG, "Cannot process stack event: no state machine: " + stackEvent); |
| return; |
| } |
| sm.sendMessage(CsipSetCoordinatorStateMachine.STACK_EVENT, stackEvent); |
| } |
| } |
| } |
| |
| private CsipSetCoordinatorStateMachine getOrCreateStateMachine(BluetoothDevice device) { |
| if (device == null) { |
| Log.e(TAG, "getOrCreateStateMachine failed: device cannot be null"); |
| return null; |
| } |
| synchronized (mStateMachines) { |
| CsipSetCoordinatorStateMachine sm = mStateMachines.get(device); |
| if (sm != null) { |
| return sm; |
| } |
| // Limit the maximum number of state machines to avoid DoS attack |
| if (mStateMachines.size() >= MAX_CSIS_STATE_MACHINES) { |
| Log.e(TAG, |
| "Maximum number of CSIS state machines reached: " |
| + MAX_CSIS_STATE_MACHINES); |
| return null; |
| } |
| if (DBG) { |
| Log.d(TAG, "Creating a new state machine for " + device); |
| } |
| sm = CsipSetCoordinatorStateMachine.make(device, this, |
| mCsipSetCoordinatorNativeInterface, mStateMachinesThread.getLooper()); |
| mStateMachines.put(device, sm); |
| return sm; |
| } |
| } |
| |
| // Remove state machine if the bonding for a device is removed |
| private class BondStateChangedReceiver extends BroadcastReceiver { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| if (!BluetoothDevice.ACTION_BOND_STATE_CHANGED.equals(intent.getAction())) { |
| return; |
| } |
| int state = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE, BluetoothDevice.ERROR); |
| BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); |
| Objects.requireNonNull(device, "ACTION_BOND_STATE_CHANGED with no EXTRA_DEVICE"); |
| bondStateChanged(device, state); |
| } |
| } |
| |
| /** |
| * Process a change in the bonding state for a device. |
| * |
| * @param device the device whose bonding state has changed |
| * @param bondState the new bond state for the device. Possible values are: |
| * {@link BluetoothDevice#BOND_NONE}, |
| * {@link BluetoothDevice#BOND_BONDING}, |
| * {@link BluetoothDevice#BOND_BONDED}. |
| */ |
| @VisibleForTesting |
| void bondStateChanged(BluetoothDevice device, int bondState) { |
| if (DBG) { |
| Log.d(TAG, "Bond state changed for device: " + device + " state: " + bondState); |
| } |
| // Remove state machine if the bonding for a device is removed |
| if (bondState != BluetoothDevice.BOND_NONE) { |
| return; |
| } |
| |
| synchronized (mStateMachines) { |
| CsipSetCoordinatorStateMachine sm = mStateMachines.get(device); |
| if (sm == null) { |
| return; |
| } |
| if (sm.getConnectionState() != BluetoothProfile.STATE_DISCONNECTED) { |
| return; |
| } |
| removeStateMachine(device); |
| } |
| } |
| |
| private void removeStateMachine(BluetoothDevice device) { |
| synchronized (mStateMachines) { |
| CsipSetCoordinatorStateMachine sm = mStateMachines.get(device); |
| if (sm == null) { |
| Log.w(TAG, |
| "removeStateMachine: device " + device + " does not have a state machine"); |
| return; |
| } |
| Log.i(TAG, "removeStateMachine: removing state machine for device: " + device); |
| sm.doQuit(); |
| sm.cleanup(); |
| mStateMachines.remove(device); |
| } |
| } |
| |
| @VisibleForTesting |
| synchronized void connectionStateChanged(BluetoothDevice device, int fromState, int toState) { |
| if ((device == null) || (fromState == toState)) { |
| Log.e(TAG, |
| "connectionStateChanged: unexpected invocation. device=" + device |
| + " fromState=" + fromState + " toState=" + toState); |
| return; |
| } |
| |
| // Check if the device is disconnected - if unbond, remove the state machine |
| if (toState == BluetoothProfile.STATE_DISCONNECTED) { |
| int bondState = mAdapterService.getBondState(device); |
| if (bondState == BluetoothDevice.BOND_NONE) { |
| if (DBG) { |
| Log.d(TAG, device + " is unbond. Remove state machine"); |
| } |
| removeStateMachine(device); |
| } |
| } |
| } |
| |
| private class ConnectionStateChangedReceiver extends BroadcastReceiver { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| if (!BluetoothCsipSetCoordinator.ACTION_CSIS_CONNECTION_STATE_CHANGED.equals( |
| intent.getAction())) { |
| return; |
| } |
| BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); |
| int toState = intent.getIntExtra(BluetoothProfile.EXTRA_STATE, -1); |
| int fromState = intent.getIntExtra(BluetoothProfile.EXTRA_PREVIOUS_STATE, -1); |
| connectionStateChanged(device, fromState, toState); |
| } |
| } |
| |
| /** |
| * Binder object: must be a static class or memory leak may occur |
| */ |
| @VisibleForTesting |
| static class BluetoothCsisBinder |
| extends IBluetoothCsipSetCoordinator.Stub implements IProfileServiceBinder { |
| private CsipSetCoordinatorService mService; |
| |
| private CsipSetCoordinatorService getService(AttributionSource source) { |
| if (!Utils.checkCallerIsSystemOrActiveUser(TAG) |
| || !Utils.checkServiceAvailable(mService, TAG)) { |
| return null; |
| } |
| |
| return mService; |
| } |
| |
| BluetoothCsisBinder(CsipSetCoordinatorService svc) { |
| mService = svc; |
| } |
| |
| @Override |
| public void cleanup() { |
| mService = null; |
| } |
| |
| @Override |
| public void connect(BluetoothDevice device, AttributionSource source, |
| SynchronousResultReceiver receiver) { |
| try { |
| boolean defaultValue = false; |
| CsipSetCoordinatorService service = getService(source); |
| if (service != null) { |
| defaultValue = service.connect(device); |
| } |
| receiver.send(defaultValue); |
| } catch (RuntimeException e) { |
| receiver.propagateException(e); |
| } |
| } |
| |
| @Override |
| public void disconnect(BluetoothDevice device, AttributionSource source, |
| SynchronousResultReceiver receiver) { |
| try { |
| boolean defaultValue = false; |
| CsipSetCoordinatorService service = getService(source); |
| if (service != null) { |
| defaultValue = service.disconnect(device); |
| } |
| receiver.send(defaultValue); |
| } catch (RuntimeException e) { |
| receiver.propagateException(e); |
| } |
| } |
| |
| @Override |
| public void getConnectedDevices(AttributionSource source, |
| SynchronousResultReceiver receiver) { |
| try { |
| List<BluetoothDevice> defaultValue = new ArrayList<>(); |
| CsipSetCoordinatorService service = getService(source); |
| if (service != null) { |
| defaultValue = service.getConnectedDevices(); |
| } |
| receiver.send(defaultValue); |
| } catch (RuntimeException e) { |
| receiver.propagateException(e); |
| } |
| } |
| |
| @Override |
| public void getDevicesMatchingConnectionStates(int[] states, |
| AttributionSource source, SynchronousResultReceiver receiver) { |
| try { |
| List<BluetoothDevice> defaultValue = new ArrayList<>(); |
| CsipSetCoordinatorService service = getService(source); |
| if (service != null) { |
| defaultValue = service.getDevicesMatchingConnectionStates(states); |
| } |
| receiver.send(defaultValue); |
| } catch (RuntimeException e) { |
| receiver.propagateException(e); |
| } |
| } |
| |
| @Override |
| public void getConnectionState(BluetoothDevice device, AttributionSource source, |
| SynchronousResultReceiver receiver) { |
| try { |
| int defaultValue = BluetoothProfile.STATE_DISCONNECTED; |
| CsipSetCoordinatorService service = getService(source); |
| if (service != null) { |
| defaultValue = service.getConnectionState(device); |
| } |
| receiver.send(defaultValue); |
| } catch (RuntimeException e) { |
| receiver.propagateException(e); |
| } |
| } |
| |
| @Override |
| public void setConnectionPolicy(BluetoothDevice device, int connectionPolicy, |
| AttributionSource source, SynchronousResultReceiver receiver) { |
| try { |
| boolean defaultValue = false; |
| CsipSetCoordinatorService service = getService(source); |
| if (service != null) { |
| defaultValue = service.setConnectionPolicy(device, connectionPolicy); |
| } |
| receiver.send(defaultValue); |
| } catch (RuntimeException e) { |
| receiver.propagateException(e); |
| } |
| } |
| |
| @Override |
| public void getConnectionPolicy(BluetoothDevice device, AttributionSource source, |
| SynchronousResultReceiver receiver) { |
| try { |
| int defaultValue = BluetoothProfile.CONNECTION_POLICY_UNKNOWN; |
| CsipSetCoordinatorService service = getService(source); |
| if (service != null) { |
| defaultValue = service.getConnectionPolicy(device); |
| } |
| receiver.send(defaultValue); |
| } catch (RuntimeException e) { |
| receiver.propagateException(e); |
| } |
| } |
| |
| @Override |
| public void groupLock( |
| int groupId, @NonNull IBluetoothCsipSetCoordinatorLockCallback callback, |
| AttributionSource source, SynchronousResultReceiver receiver) { |
| try { |
| ParcelUuid defaultValue = null; |
| CsipSetCoordinatorService service = getService(source); |
| if (service != null) { |
| UUID lockUuid = service.groupLock(groupId, callback); |
| defaultValue = lockUuid == null ? null : new ParcelUuid(lockUuid); |
| } |
| receiver.send(defaultValue); |
| } catch (RuntimeException e) { |
| receiver.propagateException(e); |
| } |
| } |
| |
| @Override |
| public void groupUnlock(@NonNull ParcelUuid lockUuid, AttributionSource source, |
| SynchronousResultReceiver receiver) { |
| try { |
| CsipSetCoordinatorService service = getService(source); |
| if (service != null) { |
| service.groupUnlock(lockUuid.getUuid()); |
| } |
| receiver.send(null); |
| } catch (RuntimeException e) { |
| receiver.propagateException(e); |
| } |
| } |
| |
| @Override |
| public void getAllGroupIds(ParcelUuid uuid, AttributionSource source, |
| SynchronousResultReceiver receiver) { |
| try { |
| List<Integer> defaultValue = new ArrayList<Integer>(); |
| CsipSetCoordinatorService service = getService(source); |
| if (service != null) { |
| defaultValue = service.getAllGroupIds(uuid); |
| } |
| receiver.send(defaultValue); |
| } catch (RuntimeException e) { |
| receiver.propagateException(e); |
| } |
| } |
| |
| @Override |
| public void getGroupUuidMapByDevice(BluetoothDevice device, |
| AttributionSource source, SynchronousResultReceiver receiver) { |
| try { |
| Map<Integer, ParcelUuid> defaultValue = null; |
| CsipSetCoordinatorService service = getService(source); |
| if (service != null) { |
| defaultValue = service.getGroupUuidMapByDevice(device); |
| } |
| receiver.send(defaultValue); |
| } catch (RuntimeException e) { |
| receiver.propagateException(e); |
| } |
| } |
| |
| @Override |
| public void getDesiredGroupSize(int groupId, AttributionSource source, |
| SynchronousResultReceiver receiver) { |
| try { |
| int defaultValue = IBluetoothCsipSetCoordinator.CSIS_GROUP_SIZE_UNKNOWN; |
| CsipSetCoordinatorService service = getService(source); |
| if (service != null) { |
| defaultValue = service.getDesiredGroupSize(groupId); |
| } |
| receiver.send(defaultValue); |
| } catch (RuntimeException e) { |
| receiver.propagateException(e); |
| } |
| } |
| } |
| |
| @Override |
| public void dump(StringBuilder sb) { |
| super.dump(sb); |
| for (CsipSetCoordinatorStateMachine sm : mStateMachines.values()) { |
| sm.dump(sb); |
| } |
| } |
| } |
