diff options
Diffstat (limited to 'services/java/com/android/server/BluetoothManagerService.java')
| -rw-r--r-- | services/java/com/android/server/BluetoothManagerService.java | 1262 |
1 files changed, 0 insertions, 1262 deletions
diff --git a/services/java/com/android/server/BluetoothManagerService.java b/services/java/com/android/server/BluetoothManagerService.java deleted file mode 100644 index 546324a..0000000 --- a/services/java/com/android/server/BluetoothManagerService.java +++ /dev/null @@ -1,1262 +0,0 @@ -/* - * Copyright (C) 2012 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. - */ - -package com.android.server; - -import android.app.ActivityManager; -import android.bluetooth.BluetoothAdapter; -import android.bluetooth.IBluetooth; -import android.bluetooth.IBluetoothGatt; -import android.bluetooth.IBluetoothCallback; -import android.bluetooth.IBluetoothManager; -import android.bluetooth.IBluetoothManagerCallback; -import android.bluetooth.IBluetoothStateChangeCallback; -import android.content.BroadcastReceiver; -import android.content.ComponentName; -import android.content.ContentResolver; -import android.content.Context; -import android.content.Intent; -import android.content.IntentFilter; -import android.content.ServiceConnection; -import android.content.pm.PackageManager; -import android.os.Binder; -import android.os.Handler; -import android.os.IBinder; -import android.os.Looper; -import android.os.Message; -import android.os.Process; -import android.os.RemoteCallbackList; -import android.os.RemoteException; -import android.os.SystemClock; -import android.os.UserHandle; -import android.provider.Settings; -import android.util.Log; -class BluetoothManagerService extends IBluetoothManager.Stub { - private static final String TAG = "BluetoothManagerService"; - private static final boolean DBG = true; - - private static final String BLUETOOTH_ADMIN_PERM = android.Manifest.permission.BLUETOOTH_ADMIN; - private static final String BLUETOOTH_PERM = android.Manifest.permission.BLUETOOTH; - private static final String ACTION_SERVICE_STATE_CHANGED="com.android.bluetooth.btservice.action.STATE_CHANGED"; - private static final String EXTRA_ACTION="action"; - private static final String SECURE_SETTINGS_BLUETOOTH_ADDR_VALID="bluetooth_addr_valid"; - private static final String SECURE_SETTINGS_BLUETOOTH_ADDRESS="bluetooth_address"; - private static final String SECURE_SETTINGS_BLUETOOTH_NAME="bluetooth_name"; - private static final int TIMEOUT_BIND_MS = 3000; //Maximum msec to wait for a bind - private static final int TIMEOUT_SAVE_MS = 500; //Maximum msec to wait for a save - //Maximum msec to wait for service restart - private static final int SERVICE_RESTART_TIME_MS = 200; - //Maximum msec to wait for restart due to error - private static final int ERROR_RESTART_TIME_MS = 3000; - //Maximum msec to delay MESSAGE_USER_SWITCHED - private static final int USER_SWITCHED_TIME_MS = 200; - - private static final int MESSAGE_ENABLE = 1; - private static final int MESSAGE_DISABLE = 2; - private static final int MESSAGE_REGISTER_ADAPTER = 20; - private static final int MESSAGE_UNREGISTER_ADAPTER = 21; - private static final int MESSAGE_REGISTER_STATE_CHANGE_CALLBACK = 30; - private static final int MESSAGE_UNREGISTER_STATE_CHANGE_CALLBACK = 31; - private static final int MESSAGE_BLUETOOTH_SERVICE_CONNECTED = 40; - private static final int MESSAGE_BLUETOOTH_SERVICE_DISCONNECTED = 41; - private static final int MESSAGE_RESTART_BLUETOOTH_SERVICE = 42; - private static final int MESSAGE_BLUETOOTH_STATE_CHANGE=60; - private static final int MESSAGE_TIMEOUT_BIND =100; - private static final int MESSAGE_TIMEOUT_UNBIND =101; - private static final int MESSAGE_GET_NAME_AND_ADDRESS=200; - private static final int MESSAGE_SAVE_NAME_AND_ADDRESS=201; - private static final int MESSAGE_USER_SWITCHED = 300; - private static final int MAX_SAVE_RETRIES=3; - private static final int MAX_ERROR_RESTART_RETRIES=6; - - // Bluetooth persisted setting is off - private static final int BLUETOOTH_OFF=0; - // Bluetooth persisted setting is on - // and Airplane mode won't affect Bluetooth state at start up - private static final int BLUETOOTH_ON_BLUETOOTH=1; - // Bluetooth persisted setting is on - // but Airplane mode will affect Bluetooth state at start up - // and Airplane mode will have higher priority. - private static final int BLUETOOTH_ON_AIRPLANE=2; - - private static final int SERVICE_IBLUETOOTH = 1; - private static final int SERVICE_IBLUETOOTHGATT = 2; - - private final Context mContext; - - // Locks are not provided for mName and mAddress. - // They are accessed in handler or broadcast receiver, same thread context. - private String mAddress; - private String mName; - private final ContentResolver mContentResolver; - private final RemoteCallbackList<IBluetoothManagerCallback> mCallbacks; - private final RemoteCallbackList<IBluetoothStateChangeCallback> mStateChangeCallbacks; - private IBluetooth mBluetooth; - private IBluetoothGatt mBluetoothGatt; - private boolean mBinding; - private boolean mUnbinding; - // used inside handler thread - private boolean mQuietEnable = false; - // configuarion from external IBinder call which is used to - // synchronize with broadcast receiver. - private boolean mQuietEnableExternal; - // configuarion from external IBinder call which is used to - // synchronize with broadcast receiver. - private boolean mEnableExternal; - // used inside handler thread - private boolean mEnable; - private int mState; - private final BluetoothHandler mHandler; - private int mErrorRecoveryRetryCounter; - - private void registerForAirplaneMode(IntentFilter filter) { - final ContentResolver resolver = mContext.getContentResolver(); - final String airplaneModeRadios = Settings.Global.getString(resolver, - Settings.Global.AIRPLANE_MODE_RADIOS); - final String toggleableRadios = Settings.Global.getString(resolver, - Settings.Global.AIRPLANE_MODE_TOGGLEABLE_RADIOS); - boolean mIsAirplaneSensitive = airplaneModeRadios == null ? true : - airplaneModeRadios.contains(Settings.Global.RADIO_BLUETOOTH); - if (mIsAirplaneSensitive) { - filter.addAction(Intent.ACTION_AIRPLANE_MODE_CHANGED); - } - } - - private final IBluetoothCallback mBluetoothCallback = new IBluetoothCallback.Stub() { - @Override - public void onBluetoothStateChange(int prevState, int newState) throws RemoteException { - Message msg = mHandler.obtainMessage(MESSAGE_BLUETOOTH_STATE_CHANGE,prevState,newState); - mHandler.sendMessage(msg); - } - }; - - private final BroadcastReceiver mReceiver = new BroadcastReceiver() { - @Override - public void onReceive(Context context, Intent intent) { - String action = intent.getAction(); - if (BluetoothAdapter.ACTION_LOCAL_NAME_CHANGED.equals(action)) { - String newName = intent.getStringExtra(BluetoothAdapter.EXTRA_LOCAL_NAME); - if (DBG) Log.d(TAG, "Bluetooth Adapter name changed to " + newName); - if (newName != null) { - storeNameAndAddress(newName, null); - } - } else if (Intent.ACTION_AIRPLANE_MODE_CHANGED.equals(action)) { - synchronized(mReceiver) { - if (isBluetoothPersistedStateOn()) { - if (isAirplaneModeOn()) { - persistBluetoothSetting(BLUETOOTH_ON_AIRPLANE); - } else { - persistBluetoothSetting(BLUETOOTH_ON_BLUETOOTH); - } - } - if (isAirplaneModeOn()) { - // disable without persisting the setting - sendDisableMsg(); - } else if (mEnableExternal) { - // enable without persisting the setting - sendEnableMsg(mQuietEnableExternal); - } - } - } else if (Intent.ACTION_USER_SWITCHED.equals(action)) { - mHandler.sendMessage(mHandler.obtainMessage(MESSAGE_USER_SWITCHED, - intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0), 0)); - } else if (Intent.ACTION_BOOT_COMPLETED.equals(action)) { - synchronized(mReceiver) { - if (mEnableExternal && isBluetoothPersistedStateOnBluetooth()) { - //Enable - if (DBG) Log.d(TAG, "Auto-enabling Bluetooth."); - sendEnableMsg(mQuietEnableExternal); - } - } - - if (!isNameAndAddressSet()) { - //Sync the Bluetooth name and address from the Bluetooth Adapter - if (DBG) Log.d(TAG,"Retrieving Bluetooth Adapter name and address..."); - getNameAndAddress(); - } - } - } - }; - - BluetoothManagerService(Context context) { - mHandler = new BluetoothHandler(IoThread.get().getLooper()); - - mContext = context; - mBluetooth = null; - mBinding = false; - mUnbinding = false; - mEnable = false; - mState = BluetoothAdapter.STATE_OFF; - mQuietEnableExternal = false; - mEnableExternal = false; - mAddress = null; - mName = null; - mErrorRecoveryRetryCounter = 0; - mContentResolver = context.getContentResolver(); - mCallbacks = new RemoteCallbackList<IBluetoothManagerCallback>(); - mStateChangeCallbacks = new RemoteCallbackList<IBluetoothStateChangeCallback>(); - IntentFilter filter = new IntentFilter(Intent.ACTION_BOOT_COMPLETED); - filter.addAction(BluetoothAdapter.ACTION_LOCAL_NAME_CHANGED); - filter.addAction(Intent.ACTION_USER_SWITCHED); - registerForAirplaneMode(filter); - mContext.registerReceiver(mReceiver, filter); - loadStoredNameAndAddress(); - if (isBluetoothPersistedStateOn()) { - mEnableExternal = true; - } - } - - /** - * Returns true if airplane mode is currently on - */ - private final boolean isAirplaneModeOn() { - return Settings.Global.getInt(mContext.getContentResolver(), - Settings.Global.AIRPLANE_MODE_ON, 0) == 1; - } - - /** - * Returns true if the Bluetooth saved state is "on" - */ - private final boolean isBluetoothPersistedStateOn() { - return Settings.Global.getInt(mContentResolver, - Settings.Global.BLUETOOTH_ON, 0) != BLUETOOTH_OFF; - } - - /** - * Returns true if the Bluetooth saved state is BLUETOOTH_ON_BLUETOOTH - */ - private final boolean isBluetoothPersistedStateOnBluetooth() { - return Settings.Global.getInt(mContentResolver, - Settings.Global.BLUETOOTH_ON, 0) == BLUETOOTH_ON_BLUETOOTH; - } - - /** - * Save the Bluetooth on/off state - * - */ - private void persistBluetoothSetting(int value) { - Settings.Global.putInt(mContext.getContentResolver(), - Settings.Global.BLUETOOTH_ON, - value); - } - - /** - * Returns true if the Bluetooth Adapter's name and address is - * locally cached - * @return - */ - private boolean isNameAndAddressSet() { - return mName !=null && mAddress!= null && mName.length()>0 && mAddress.length()>0; - } - - /** - * Retrieve the Bluetooth Adapter's name and address and save it in - * in the local cache - */ - private void loadStoredNameAndAddress() { - if (DBG) Log.d(TAG, "Loading stored name and address"); - if (mContext.getResources().getBoolean - (com.android.internal.R.bool.config_bluetooth_address_validation) && - Settings.Secure.getInt(mContentResolver, SECURE_SETTINGS_BLUETOOTH_ADDR_VALID, 0) == 0) { - // if the valid flag is not set, don't load the address and name - if (DBG) Log.d(TAG, "invalid bluetooth name and address stored"); - return; - } - mName = Settings.Secure.getString(mContentResolver, SECURE_SETTINGS_BLUETOOTH_NAME); - mAddress = Settings.Secure.getString(mContentResolver, SECURE_SETTINGS_BLUETOOTH_ADDRESS); - if (DBG) Log.d(TAG, "Stored bluetooth Name=" + mName + ",Address=" + mAddress); - } - - /** - * Save the Bluetooth name and address in the persistent store. - * Only non-null values will be saved. - * @param name - * @param address - */ - private void storeNameAndAddress(String name, String address) { - if (name != null) { - Settings.Secure.putString(mContentResolver, SECURE_SETTINGS_BLUETOOTH_NAME, name); - mName = name; - if (DBG) Log.d(TAG,"Stored Bluetooth name: " + - Settings.Secure.getString(mContentResolver,SECURE_SETTINGS_BLUETOOTH_NAME)); - } - - if (address != null) { - Settings.Secure.putString(mContentResolver, SECURE_SETTINGS_BLUETOOTH_ADDRESS, address); - mAddress=address; - if (DBG) Log.d(TAG,"Stored Bluetoothaddress: " + - Settings.Secure.getString(mContentResolver,SECURE_SETTINGS_BLUETOOTH_ADDRESS)); - } - - if ((name != null) && (address != null)) { - Settings.Secure.putInt(mContentResolver, SECURE_SETTINGS_BLUETOOTH_ADDR_VALID, 1); - } - } - - public IBluetooth registerAdapter(IBluetoothManagerCallback callback){ - Message msg = mHandler.obtainMessage(MESSAGE_REGISTER_ADAPTER); - msg.obj = callback; - mHandler.sendMessage(msg); - synchronized(mConnection) { - return mBluetooth; - } - } - - public void unregisterAdapter(IBluetoothManagerCallback callback) { - mContext.enforceCallingOrSelfPermission(BLUETOOTH_PERM, - "Need BLUETOOTH permission"); - Message msg = mHandler.obtainMessage(MESSAGE_UNREGISTER_ADAPTER); - msg.obj = callback; - mHandler.sendMessage(msg); - } - - public void registerStateChangeCallback(IBluetoothStateChangeCallback callback) { - mContext.enforceCallingOrSelfPermission(BLUETOOTH_PERM, - "Need BLUETOOTH permission"); - Message msg = mHandler.obtainMessage(MESSAGE_REGISTER_STATE_CHANGE_CALLBACK); - msg.obj = callback; - mHandler.sendMessage(msg); - } - - public void unregisterStateChangeCallback(IBluetoothStateChangeCallback callback) { - mContext.enforceCallingOrSelfPermission(BLUETOOTH_PERM, - "Need BLUETOOTH permission"); - Message msg = mHandler.obtainMessage(MESSAGE_UNREGISTER_STATE_CHANGE_CALLBACK); - msg.obj = callback; - mHandler.sendMessage(msg); - } - - public boolean isEnabled() { - if ((Binder.getCallingUid() != Process.SYSTEM_UID) && - (!checkIfCallerIsForegroundUser())) { - Log.w(TAG,"isEnabled(): not allowed for non-active and non system user"); - return false; - } - - synchronized(mConnection) { - try { - return (mBluetooth != null && mBluetooth.isEnabled()); - } catch (RemoteException e) { - Log.e(TAG, "isEnabled()", e); - } - } - return false; - } - - public void getNameAndAddress() { - if (DBG) { - Log.d(TAG,"getNameAndAddress(): mBluetooth = " + mBluetooth + - " mBinding = " + mBinding); - } - Message msg = mHandler.obtainMessage(MESSAGE_GET_NAME_AND_ADDRESS); - mHandler.sendMessage(msg); - } - public boolean enableNoAutoConnect() - { - mContext.enforceCallingOrSelfPermission(BLUETOOTH_ADMIN_PERM, - "Need BLUETOOTH ADMIN permission"); - - if (DBG) { - Log.d(TAG,"enableNoAutoConnect(): mBluetooth =" + mBluetooth + - " mBinding = " + mBinding); - } - int callingAppId = UserHandle.getAppId(Binder.getCallingUid()); - - if (callingAppId != Process.NFC_UID) { - throw new SecurityException("no permission to enable Bluetooth quietly"); - } - - synchronized(mReceiver) { - mQuietEnableExternal = true; - mEnableExternal = true; - sendEnableMsg(true); - } - return true; - - } - public boolean enable() { - if ((Binder.getCallingUid() != Process.SYSTEM_UID) && - (!checkIfCallerIsForegroundUser())) { - Log.w(TAG,"enable(): not allowed for non-active and non system user"); - return false; - } - - mContext.enforceCallingOrSelfPermission(BLUETOOTH_ADMIN_PERM, - "Need BLUETOOTH ADMIN permission"); - if (DBG) { - Log.d(TAG,"enable(): mBluetooth =" + mBluetooth + - " mBinding = " + mBinding); - } - - synchronized(mReceiver) { - mQuietEnableExternal = false; - mEnableExternal = true; - // waive WRITE_SECURE_SETTINGS permission check - long callingIdentity = Binder.clearCallingIdentity(); - persistBluetoothSetting(BLUETOOTH_ON_BLUETOOTH); - Binder.restoreCallingIdentity(callingIdentity); - sendEnableMsg(false); - } - return true; - } - - public boolean disable(boolean persist) { - mContext.enforceCallingOrSelfPermission(BLUETOOTH_ADMIN_PERM, - "Need BLUETOOTH ADMIN permissicacheNameAndAddresson"); - - if ((Binder.getCallingUid() != Process.SYSTEM_UID) && - (!checkIfCallerIsForegroundUser())) { - Log.w(TAG,"disable(): not allowed for non-active and non system user"); - return false; - } - - if (DBG) { - Log.d(TAG,"disable(): mBluetooth = " + mBluetooth + - " mBinding = " + mBinding); - } - - synchronized(mReceiver) { - if (persist) { - // waive WRITE_SECURE_SETTINGS permission check - long callingIdentity = Binder.clearCallingIdentity(); - persistBluetoothSetting(BLUETOOTH_OFF); - Binder.restoreCallingIdentity(callingIdentity); - } - mEnableExternal = false; - sendDisableMsg(); - } - return true; - } - - public void unbindAndFinish() { - if (DBG) { - Log.d(TAG,"unbindAndFinish(): " + mBluetooth + - " mBinding = " + mBinding); - } - - synchronized (mConnection) { - if (mUnbinding) return; - mUnbinding = true; - if (mBluetooth != null) { - if (!mConnection.isGetNameAddressOnly()) { - //Unregister callback object - try { - mBluetooth.unregisterCallback(mBluetoothCallback); - } catch (RemoteException re) { - Log.e(TAG, "Unable to unregister BluetoothCallback",re); - } - } - if (DBG) Log.d(TAG, "Sending unbind request."); - mBluetooth = null; - //Unbind - mContext.unbindService(mConnection); - mUnbinding = false; - mBinding = false; - } else { - mUnbinding=false; - } - } - } - - public IBluetoothGatt getBluetoothGatt() { - // sync protection - return mBluetoothGatt; - } - - private void sendBluetoothStateCallback(boolean isUp) { - int n = mStateChangeCallbacks.beginBroadcast(); - if (DBG) Log.d(TAG,"Broadcasting onBluetoothStateChange("+isUp+") to " + n + " receivers."); - for (int i=0; i <n;i++) { - try { - mStateChangeCallbacks.getBroadcastItem(i).onBluetoothStateChange(isUp); - } catch (RemoteException e) { - Log.e(TAG, "Unable to call onBluetoothStateChange() on callback #" + i , e); - } - } - mStateChangeCallbacks.finishBroadcast(); - } - - /** - * Inform BluetoothAdapter instances that Adapter service is up - */ - private void sendBluetoothServiceUpCallback() { - if (!mConnection.isGetNameAddressOnly()) { - if (DBG) Log.d(TAG,"Calling onBluetoothServiceUp callbacks"); - int n = mCallbacks.beginBroadcast(); - Log.d(TAG,"Broadcasting onBluetoothServiceUp() to " + n + " receivers."); - for (int i=0; i <n;i++) { - try { - mCallbacks.getBroadcastItem(i).onBluetoothServiceUp(mBluetooth); - } catch (RemoteException e) { - Log.e(TAG, "Unable to call onBluetoothServiceUp() on callback #" + i, e); - } - } - mCallbacks.finishBroadcast(); - } - } - /** - * Inform BluetoothAdapter instances that Adapter service is down - */ - private void sendBluetoothServiceDownCallback() { - if (!mConnection.isGetNameAddressOnly()) { - if (DBG) Log.d(TAG,"Calling onBluetoothServiceDown callbacks"); - int n = mCallbacks.beginBroadcast(); - Log.d(TAG,"Broadcasting onBluetoothServiceDown() to " + n + " receivers."); - for (int i=0; i <n;i++) { - try { - mCallbacks.getBroadcastItem(i).onBluetoothServiceDown(); - } catch (RemoteException e) { - Log.e(TAG, "Unable to call onBluetoothServiceDown() on callback #" + i, e); - } - } - mCallbacks.finishBroadcast(); - } - } - public String getAddress() { - mContext.enforceCallingOrSelfPermission(BLUETOOTH_PERM, - "Need BLUETOOTH permission"); - - if ((Binder.getCallingUid() != Process.SYSTEM_UID) && - (!checkIfCallerIsForegroundUser())) { - Log.w(TAG,"getAddress(): not allowed for non-active and non system user"); - return null; - } - - synchronized(mConnection) { - if (mBluetooth != null) { - try { - return mBluetooth.getAddress(); - } catch (RemoteException e) { - Log.e(TAG, "getAddress(): Unable to retrieve address remotely..Returning cached address",e); - } - } - } - // mAddress is accessed from outside. - // It is alright without a lock. Here, bluetooth is off, no other thread is - // changing mAddress - return mAddress; - } - - public String getName() { - mContext.enforceCallingOrSelfPermission(BLUETOOTH_PERM, - "Need BLUETOOTH permission"); - - if ((Binder.getCallingUid() != Process.SYSTEM_UID) && - (!checkIfCallerIsForegroundUser())) { - Log.w(TAG,"getName(): not allowed for non-active and non system user"); - return null; - } - - synchronized(mConnection) { - if (mBluetooth != null) { - try { - return mBluetooth.getName(); - } catch (RemoteException e) { - Log.e(TAG, "getName(): Unable to retrieve name remotely..Returning cached name",e); - } - } - } - // mName is accessed from outside. - // It alright without a lock. Here, bluetooth is off, no other thread is - // changing mName - return mName; - } - - private class BluetoothServiceConnection implements ServiceConnection { - - private boolean mGetNameAddressOnly; - - public void setGetNameAddressOnly(boolean getOnly) { - mGetNameAddressOnly = getOnly; - } - - public boolean isGetNameAddressOnly() { - return mGetNameAddressOnly; - } - - public void onServiceConnected(ComponentName className, IBinder service) { - if (DBG) Log.d(TAG, "BluetoothServiceConnection: " + className.getClassName()); - Message msg = mHandler.obtainMessage(MESSAGE_BLUETOOTH_SERVICE_CONNECTED); - // TBD if (className.getClassName().equals(IBluetooth.class.getName())) { - if (className.getClassName().equals("com.android.bluetooth.btservice.AdapterService")) { - msg.arg1 = SERVICE_IBLUETOOTH; - // } else if (className.getClassName().equals(IBluetoothGatt.class.getName())) { - } else if (className.getClassName().equals("com.android.bluetooth.gatt.GattService")) { - msg.arg1 = SERVICE_IBLUETOOTHGATT; - } else { - Log.e(TAG, "Unknown service connected: " + className.getClassName()); - return; - } - msg.obj = service; - mHandler.sendMessage(msg); - } - - public void onServiceDisconnected(ComponentName className) { - // Called if we unexpected disconnected. - if (DBG) Log.d(TAG, "BluetoothServiceConnection, disconnected: " + - className.getClassName()); - Message msg = mHandler.obtainMessage(MESSAGE_BLUETOOTH_SERVICE_DISCONNECTED); - if (className.getClassName().equals("com.android.bluetooth.btservice.AdapterService")) { - msg.arg1 = SERVICE_IBLUETOOTH; - } else if (className.getClassName().equals("com.android.bluetooth.gatt.GattService")) { - msg.arg1 = SERVICE_IBLUETOOTHGATT; - } else { - Log.e(TAG, "Unknown service disconnected: " + className.getClassName()); - return; - } - mHandler.sendMessage(msg); - } - } - - private BluetoothServiceConnection mConnection = new BluetoothServiceConnection(); - - private class BluetoothHandler extends Handler { - public BluetoothHandler(Looper looper) { - super(looper); - } - - @Override - public void handleMessage(Message msg) { - if (DBG) Log.d (TAG, "Message: " + msg.what); - switch (msg.what) { - case MESSAGE_GET_NAME_AND_ADDRESS: { - if (DBG) Log.d(TAG,"MESSAGE_GET_NAME_AND_ADDRESS"); - synchronized(mConnection) { - //Start bind request - if ((mBluetooth == null) && (!mBinding)) { - if (DBG) Log.d(TAG, "Binding to service to get name and address"); - mConnection.setGetNameAddressOnly(true); - //Start bind timeout and bind - Message timeoutMsg = mHandler.obtainMessage(MESSAGE_TIMEOUT_BIND); - mHandler.sendMessageDelayed(timeoutMsg,TIMEOUT_BIND_MS); - Intent i = new Intent(IBluetooth.class.getName()); - if (!doBind(i, mConnection, - Context.BIND_AUTO_CREATE, UserHandle.CURRENT)) { - mHandler.removeMessages(MESSAGE_TIMEOUT_BIND); - } else { - mBinding = true; - } - } - else { - Message saveMsg= mHandler.obtainMessage(MESSAGE_SAVE_NAME_AND_ADDRESS); - saveMsg.arg1 = 0; - if (mBluetooth != null) { - mHandler.sendMessage(saveMsg); - } else { - // if enable is also called to bind the service - // wait for MESSAGE_BLUETOOTH_SERVICE_CONNECTED - mHandler.sendMessageDelayed(saveMsg, TIMEOUT_SAVE_MS); - } - } - } - break; - } - case MESSAGE_SAVE_NAME_AND_ADDRESS: { - boolean unbind = false; - if (DBG) Log.d(TAG,"MESSAGE_SAVE_NAME_AND_ADDRESS"); - synchronized(mConnection) { - if (!mEnable && mBluetooth != null) { - try { - mBluetooth.enable(); - } catch (RemoteException e) { - Log.e(TAG,"Unable to call enable()",e); - } - } - } - if (mBluetooth != null) waitForOnOff(true, false); - synchronized(mConnection) { - if (mBluetooth != null) { - String name = null; - String address = null; - try { - name = mBluetooth.getName(); - address = mBluetooth.getAddress(); - } catch (RemoteException re) { - Log.e(TAG,"",re); - } - - if (name != null && address != null) { - storeNameAndAddress(name,address); - if (mConnection.isGetNameAddressOnly()) { - unbind = true; - } - } else { - if (msg.arg1 < MAX_SAVE_RETRIES) { - Message retryMsg = mHandler.obtainMessage(MESSAGE_SAVE_NAME_AND_ADDRESS); - retryMsg.arg1= 1+msg.arg1; - if (DBG) Log.d(TAG,"Retrying name/address remote retrieval and save.....Retry count =" + retryMsg.arg1); - mHandler.sendMessageDelayed(retryMsg, TIMEOUT_SAVE_MS); - } else { - Log.w(TAG,"Maximum name/address remote retrieval retry exceeded"); - if (mConnection.isGetNameAddressOnly()) { - unbind = true; - } - } - } - if (!mEnable) { - try { - mBluetooth.disable(); - } catch (RemoteException e) { - Log.e(TAG,"Unable to call disable()",e); - } - } - } else { - // rebind service by Request GET NAME AND ADDRESS - // if service is unbinded by disable or - // MESSAGE_BLUETOOTH_SERVICE_CONNECTED is not received - Message getMsg = mHandler.obtainMessage(MESSAGE_GET_NAME_AND_ADDRESS); - mHandler.sendMessage(getMsg); - } - } - if (!mEnable && mBluetooth != null) waitForOnOff(false, true); - if (unbind) { - unbindAndFinish(); - } - break; - } - case MESSAGE_ENABLE: - if (DBG) { - Log.d(TAG, "MESSAGE_ENABLE: mBluetooth = " + mBluetooth); - } - mHandler.removeMessages(MESSAGE_RESTART_BLUETOOTH_SERVICE); - mEnable = true; - handleEnable(msg.arg1 == 1); - break; - - case MESSAGE_DISABLE: - mHandler.removeMessages(MESSAGE_RESTART_BLUETOOTH_SERVICE); - if (mEnable && mBluetooth != null) { - waitForOnOff(true, false); - mEnable = false; - handleDisable(); - waitForOnOff(false, false); - } else { - mEnable = false; - handleDisable(); - } - break; - - case MESSAGE_REGISTER_ADAPTER: - { - IBluetoothManagerCallback callback = (IBluetoothManagerCallback) msg.obj; - boolean added = mCallbacks.register(callback); - Log.d(TAG,"Added callback: " + (callback == null? "null": callback) +":" +added ); - } - break; - case MESSAGE_UNREGISTER_ADAPTER: - { - IBluetoothManagerCallback callback = (IBluetoothManagerCallback) msg.obj; - boolean removed = mCallbacks.unregister(callback); - Log.d(TAG,"Removed callback: " + (callback == null? "null": callback) +":" + removed); - break; - } - case MESSAGE_REGISTER_STATE_CHANGE_CALLBACK: - { - IBluetoothStateChangeCallback callback = (IBluetoothStateChangeCallback) msg.obj; - if (callback != null) { - mStateChangeCallbacks.register(callback); - } - break; - } - case MESSAGE_UNREGISTER_STATE_CHANGE_CALLBACK: - { - IBluetoothStateChangeCallback callback = (IBluetoothStateChangeCallback) msg.obj; - if (callback != null) { - mStateChangeCallbacks.unregister(callback); - } - break; - } - case MESSAGE_BLUETOOTH_SERVICE_CONNECTED: - { - if (DBG) Log.d(TAG,"MESSAGE_BLUETOOTH_SERVICE_CONNECTED: " + msg.arg1); - - IBinder service = (IBinder) msg.obj; - synchronized(mConnection) { - if (msg.arg1 == SERVICE_IBLUETOOTHGATT) { - mBluetoothGatt = IBluetoothGatt.Stub.asInterface(service); - break; - } // else must be SERVICE_IBLUETOOTH - - //Remove timeout - mHandler.removeMessages(MESSAGE_TIMEOUT_BIND); - - mBinding = false; - mBluetooth = IBluetooth.Stub.asInterface(service); - - try { - boolean enableHciSnoopLog = (Settings.Secure.getInt(mContentResolver, - Settings.Secure.BLUETOOTH_HCI_LOG, 0) == 1); - if (!mBluetooth.configHciSnoopLog(enableHciSnoopLog)) { - Log.e(TAG,"IBluetooth.configHciSnoopLog return false"); - } - } catch (RemoteException e) { - Log.e(TAG,"Unable to call configHciSnoopLog", e); - } - - if (mConnection.isGetNameAddressOnly()) { - //Request GET NAME AND ADDRESS - Message getMsg = mHandler.obtainMessage(MESSAGE_GET_NAME_AND_ADDRESS); - mHandler.sendMessage(getMsg); - if (!mEnable) return; - } - - mConnection.setGetNameAddressOnly(false); - //Register callback object - try { - mBluetooth.registerCallback(mBluetoothCallback); - } catch (RemoteException re) { - Log.e(TAG, "Unable to register BluetoothCallback",re); - } - //Inform BluetoothAdapter instances that service is up - sendBluetoothServiceUpCallback(); - - //Do enable request - try { - if (mQuietEnable == false) { - if(!mBluetooth.enable()) { - Log.e(TAG,"IBluetooth.enable() returned false"); - } - } - else - { - if(!mBluetooth.enableNoAutoConnect()) { - Log.e(TAG,"IBluetooth.enableNoAutoConnect() returned false"); - } - } - } catch (RemoteException e) { - Log.e(TAG,"Unable to call enable()",e); - } - } - - if (!mEnable) { - waitForOnOff(true, false); - handleDisable(); - waitForOnOff(false, false); - } - break; - } - case MESSAGE_TIMEOUT_BIND: { - Log.e(TAG, "MESSAGE_TIMEOUT_BIND"); - synchronized(mConnection) { - mBinding = false; - } - break; - } - case MESSAGE_BLUETOOTH_STATE_CHANGE: - { - int prevState = msg.arg1; - int newState = msg.arg2; - if (DBG) Log.d(TAG, "MESSAGE_BLUETOOTH_STATE_CHANGE: prevState = " + prevState + ", newState=" + newState); - mState = newState; - bluetoothStateChangeHandler(prevState, newState); - // handle error state transition case from TURNING_ON to OFF - // unbind and rebind bluetooth service and enable bluetooth - if ((prevState == BluetoothAdapter.STATE_TURNING_ON) && - (newState == BluetoothAdapter.STATE_OFF) && - (mBluetooth != null) && mEnable) { - recoverBluetoothServiceFromError(); - } - if (newState == BluetoothAdapter.STATE_ON) { - // bluetooth is working, reset the counter - if (mErrorRecoveryRetryCounter != 0) { - Log.w(TAG, "bluetooth is recovered from error"); - mErrorRecoveryRetryCounter = 0; - } - } - break; - } - case MESSAGE_BLUETOOTH_SERVICE_DISCONNECTED: - { - Log.e(TAG, "MESSAGE_BLUETOOTH_SERVICE_DISCONNECTED: " + msg.arg1); - synchronized(mConnection) { - if (msg.arg1 == SERVICE_IBLUETOOTH) { - // if service is unbinded already, do nothing and return - if (mBluetooth == null) break; - mBluetooth = null; - } else if (msg.arg1 == SERVICE_IBLUETOOTHGATT) { - mBluetoothGatt = null; - break; - } else { - Log.e(TAG, "Bad msg.arg1: " + msg.arg1); - break; - } - } - - if (mEnable) { - mEnable = false; - // Send a Bluetooth Restart message - Message restartMsg = mHandler.obtainMessage( - MESSAGE_RESTART_BLUETOOTH_SERVICE); - mHandler.sendMessageDelayed(restartMsg, - SERVICE_RESTART_TIME_MS); - } - - if (!mConnection.isGetNameAddressOnly()) { - sendBluetoothServiceDownCallback(); - - // Send BT state broadcast to update - // the BT icon correctly - if ((mState == BluetoothAdapter.STATE_TURNING_ON) || - (mState == BluetoothAdapter.STATE_ON)) { - bluetoothStateChangeHandler(BluetoothAdapter.STATE_ON, - BluetoothAdapter.STATE_TURNING_OFF); - mState = BluetoothAdapter.STATE_TURNING_OFF; - } - if (mState == BluetoothAdapter.STATE_TURNING_OFF) { - bluetoothStateChangeHandler(BluetoothAdapter.STATE_TURNING_OFF, - BluetoothAdapter.STATE_OFF); - } - - mHandler.removeMessages(MESSAGE_BLUETOOTH_STATE_CHANGE); - mState = BluetoothAdapter.STATE_OFF; - } - break; - } - case MESSAGE_RESTART_BLUETOOTH_SERVICE: - { - Log.d(TAG, "MESSAGE_RESTART_BLUETOOTH_SERVICE:" - +" Restart IBluetooth service"); - /* Enable without persisting the setting as - it doesnt change when IBluetooth - service restarts */ - mEnable = true; - handleEnable(mQuietEnable); - break; - } - - case MESSAGE_TIMEOUT_UNBIND: - { - Log.e(TAG, "MESSAGE_TIMEOUT_UNBIND"); - synchronized(mConnection) { - mUnbinding = false; - } - break; - } - - case MESSAGE_USER_SWITCHED: - { - if (DBG) { - Log.d(TAG, "MESSAGE_USER_SWITCHED"); - } - mHandler.removeMessages(MESSAGE_USER_SWITCHED); - /* disable and enable BT when detect a user switch */ - if (mEnable && mBluetooth != null) { - synchronized (mConnection) { - if (mBluetooth != null) { - //Unregister callback object - try { - mBluetooth.unregisterCallback(mBluetoothCallback); - } catch (RemoteException re) { - Log.e(TAG, "Unable to unregister",re); - } - } - } - - if (mState == BluetoothAdapter.STATE_TURNING_OFF) { - // MESSAGE_USER_SWITCHED happened right after MESSAGE_ENABLE - bluetoothStateChangeHandler(mState, BluetoothAdapter.STATE_OFF); - mState = BluetoothAdapter.STATE_OFF; - } - if (mState == BluetoothAdapter.STATE_OFF) { - bluetoothStateChangeHandler(mState, BluetoothAdapter.STATE_TURNING_ON); - mState = BluetoothAdapter.STATE_TURNING_ON; - } - - waitForOnOff(true, false); - - if (mState == BluetoothAdapter.STATE_TURNING_ON) { - bluetoothStateChangeHandler(mState, BluetoothAdapter.STATE_ON); - } - - // disable - handleDisable(); - // Pbap service need receive STATE_TURNING_OFF intent to close - bluetoothStateChangeHandler(BluetoothAdapter.STATE_ON, - BluetoothAdapter.STATE_TURNING_OFF); - - waitForOnOff(false, true); - - bluetoothStateChangeHandler(BluetoothAdapter.STATE_TURNING_OFF, - BluetoothAdapter.STATE_OFF); - sendBluetoothServiceDownCallback(); - synchronized (mConnection) { - if (mBluetooth != null) { - mBluetooth = null; - //Unbind - mContext.unbindService(mConnection); - } - } - SystemClock.sleep(100); - - mHandler.removeMessages(MESSAGE_BLUETOOTH_STATE_CHANGE); - mState = BluetoothAdapter.STATE_OFF; - // enable - handleEnable(mQuietEnable); - } else if (mBinding || mBluetooth != null) { - Message userMsg = mHandler.obtainMessage(MESSAGE_USER_SWITCHED); - userMsg.arg2 = 1 + msg.arg2; - // if user is switched when service is being binding - // delay sending MESSAGE_USER_SWITCHED - mHandler.sendMessageDelayed(userMsg, USER_SWITCHED_TIME_MS); - if (DBG) { - Log.d(TAG, "delay MESSAGE_USER_SWITCHED " + userMsg.arg2); - } - } - break; - } - } - } - } - - private void handleEnable(boolean quietMode) { - mQuietEnable = quietMode; - - synchronized(mConnection) { - if ((mBluetooth == null) && (!mBinding)) { - //Start bind timeout and bind - Message timeoutMsg=mHandler.obtainMessage(MESSAGE_TIMEOUT_BIND); - mHandler.sendMessageDelayed(timeoutMsg,TIMEOUT_BIND_MS); - mConnection.setGetNameAddressOnly(false); - Intent i = new Intent(IBluetooth.class.getName()); - if (!doBind(i, mConnection,Context.BIND_AUTO_CREATE, UserHandle.CURRENT)) { - mHandler.removeMessages(MESSAGE_TIMEOUT_BIND); - } else { - mBinding = true; - } - } else if (mBluetooth != null) { - if (mConnection.isGetNameAddressOnly()) { - // if GetNameAddressOnly is set, we can clear this flag, - // so the service won't be unbind - // after name and address are saved - mConnection.setGetNameAddressOnly(false); - //Register callback object - try { - mBluetooth.registerCallback(mBluetoothCallback); - } catch (RemoteException re) { - Log.e(TAG, "Unable to register BluetoothCallback",re); - } - //Inform BluetoothAdapter instances that service is up - sendBluetoothServiceUpCallback(); - } - - //Enable bluetooth - try { - if (!mQuietEnable) { - if(!mBluetooth.enable()) { - Log.e(TAG,"IBluetooth.enable() returned false"); - } - } - else { - if(!mBluetooth.enableNoAutoConnect()) { - Log.e(TAG,"IBluetooth.enableNoAutoConnect() returned false"); - } - } - } catch (RemoteException e) { - Log.e(TAG,"Unable to call enable()",e); - } - } - } - } - - boolean doBind(Intent intent, ServiceConnection conn, int flags, UserHandle user) { - ComponentName comp = intent.resolveSystemService(mContext.getPackageManager(), 0); - intent.setComponent(comp); - if (comp == null || !mContext.bindServiceAsUser(intent, conn, flags, user)) { - Log.e(TAG, "Fail to bind to: " + intent); - return false; - } - return true; - } - - private void handleDisable() { - synchronized(mConnection) { - // don't need to disable if GetNameAddressOnly is set, - // service will be unbinded after Name and Address are saved - if ((mBluetooth != null) && (!mConnection.isGetNameAddressOnly())) { - if (DBG) Log.d(TAG,"Sending off request."); - - try { - if(!mBluetooth.disable()) { - Log.e(TAG,"IBluetooth.disable() returned false"); - } - } catch (RemoteException e) { - Log.e(TAG,"Unable to call disable()",e); - } - } - } - } - - private boolean checkIfCallerIsForegroundUser() { - int foregroundUser; - int callingUser = UserHandle.getCallingUserId(); - int callingUid = Binder.getCallingUid(); - long callingIdentity = Binder.clearCallingIdentity(); - int callingAppId = UserHandle.getAppId(callingUid); - boolean valid = false; - try { - foregroundUser = ActivityManager.getCurrentUser(); - valid = (callingUser == foregroundUser) || - callingAppId == Process.NFC_UID; - if (DBG) { - Log.d(TAG, "checkIfCallerIsForegroundUser: valid=" + valid - + " callingUser=" + callingUser - + " foregroundUser=" + foregroundUser); - } - } finally { - Binder.restoreCallingIdentity(callingIdentity); - } - return valid; - } - - private void bluetoothStateChangeHandler(int prevState, int newState) { - if (prevState != newState) { - //Notify all proxy objects first of adapter state change - if (newState == BluetoothAdapter.STATE_ON || newState == BluetoothAdapter.STATE_OFF) { - boolean isUp = (newState==BluetoothAdapter.STATE_ON); - sendBluetoothStateCallback(isUp); - - if (isUp) { - // connect to GattService - if (mContext.getPackageManager().hasSystemFeature( - PackageManager.FEATURE_BLUETOOTH_LE)) { - Intent i = new Intent(IBluetoothGatt.class.getName()); - doBind(i, mConnection, Context.BIND_AUTO_CREATE, UserHandle.CURRENT); - } - } else { - //If Bluetooth is off, send service down event to proxy objects, and unbind - if (!isUp && canUnbindBluetoothService()) { - sendBluetoothServiceDownCallback(); - unbindAndFinish(); - } - } - } - - //Send broadcast message to everyone else - Intent intent = new Intent(BluetoothAdapter.ACTION_STATE_CHANGED); - intent.putExtra(BluetoothAdapter.EXTRA_PREVIOUS_STATE, prevState); - intent.putExtra(BluetoothAdapter.EXTRA_STATE, newState); - intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); - if (DBG) Log.d(TAG,"Bluetooth State Change Intent: " + prevState + " -> " + newState); - mContext.sendBroadcastAsUser(intent, UserHandle.ALL, - BLUETOOTH_PERM); - } - } - - /** - * if on is true, wait for state become ON - * if off is true, wait for state become OFF - * if both on and off are false, wait for state not ON - */ - private boolean waitForOnOff(boolean on, boolean off) { - int i = 0; - while (i < 10) { - synchronized(mConnection) { - try { - if (mBluetooth == null) break; - if (on) { - if (mBluetooth.getState() == BluetoothAdapter.STATE_ON) return true; - } else if (off) { - if (mBluetooth.getState() == BluetoothAdapter.STATE_OFF) return true; - } else { - if (mBluetooth.getState() != BluetoothAdapter.STATE_ON) return true; - } - } catch (RemoteException e) { - Log.e(TAG, "getState()", e); - break; - } - } - if (on || off) { - SystemClock.sleep(300); - } else { - SystemClock.sleep(50); - } - i++; - } - Log.e(TAG,"waitForOnOff time out"); - return false; - } - - private void sendDisableMsg() { - mHandler.sendMessage(mHandler.obtainMessage(MESSAGE_DISABLE)); - } - - private void sendEnableMsg(boolean quietMode) { - mHandler.sendMessage(mHandler.obtainMessage(MESSAGE_ENABLE, - quietMode ? 1 : 0, 0)); - } - - private boolean canUnbindBluetoothService() { - synchronized(mConnection) { - //Only unbind with mEnable flag not set - //For race condition: disable and enable back-to-back - //Avoid unbind right after enable due to callback from disable - //Only unbind with Bluetooth at OFF state - //Only unbind without any MESSAGE_BLUETOOTH_STATE_CHANGE message - try { - if (mEnable || (mBluetooth == null)) return false; - if (mHandler.hasMessages(MESSAGE_BLUETOOTH_STATE_CHANGE)) return false; - return (mBluetooth.getState() == BluetoothAdapter.STATE_OFF); - } catch (RemoteException e) { - Log.e(TAG, "getState()", e); - } - } - return false; - } - - private void recoverBluetoothServiceFromError() { - Log.e(TAG,"recoverBluetoothServiceFromError"); - synchronized (mConnection) { - if (mBluetooth != null) { - //Unregister callback object - try { - mBluetooth.unregisterCallback(mBluetoothCallback); - } catch (RemoteException re) { - Log.e(TAG, "Unable to unregister",re); - } - } - } - - SystemClock.sleep(500); - - // disable - handleDisable(); - - waitForOnOff(false, true); - - sendBluetoothServiceDownCallback(); - synchronized (mConnection) { - if (mBluetooth != null) { - mBluetooth = null; - //Unbind - mContext.unbindService(mConnection); - } - } - - mHandler.removeMessages(MESSAGE_BLUETOOTH_STATE_CHANGE); - mState = BluetoothAdapter.STATE_OFF; - - mEnable = false; - - if (mErrorRecoveryRetryCounter++ < MAX_ERROR_RESTART_RETRIES) { - // Send a Bluetooth Restart message to reenable bluetooth - Message restartMsg = mHandler.obtainMessage( - MESSAGE_RESTART_BLUETOOTH_SERVICE); - mHandler.sendMessageDelayed(restartMsg, ERROR_RESTART_TIME_MS); - } else { - // todo: notify user to power down and power up phone to make bluetooth work. - } - } -} |