| /* |
| * Copyright (C) 2010 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.nfc; |
| |
| import android.app.ActivityManager; |
| import android.app.Application; |
| import android.app.KeyguardManager; |
| import android.app.PendingIntent; |
| import android.app.admin.DevicePolicyManager; |
| 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.SharedPreferences; |
| import android.content.pm.IPackageManager; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.UserInfo; |
| import android.content.res.Resources.NotFoundException; |
| import android.media.AudioManager; |
| import android.media.SoundPool; |
| import android.nfc.BeamShareData; |
| import android.nfc.ErrorCodes; |
| import android.nfc.FormatException; |
| import android.nfc.IAppCallback; |
| import android.nfc.INfcAdapter; |
| import android.nfc.INfcAdapterExtras; |
| import android.nfc.INfcCardEmulation; |
| import android.nfc.INfcTag; |
| import android.nfc.INfcUnlockHandler; |
| import android.nfc.NdefMessage; |
| import android.nfc.NfcAdapter; |
| import android.nfc.Tag; |
| import android.nfc.TechListParcel; |
| import android.nfc.TransceiveResult; |
| import android.nfc.tech.Ndef; |
| import android.nfc.tech.TagTechnology; |
| import android.os.AsyncTask; |
| import android.os.Binder; |
| import android.os.Build; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.Message; |
| import android.os.PowerManager; |
| import android.os.Process; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.provider.Settings; |
| import android.util.Log; |
| |
| import com.android.nfc.DeviceHost.DeviceHostListener; |
| import com.android.nfc.DeviceHost.LlcpConnectionlessSocket; |
| import com.android.nfc.DeviceHost.LlcpServerSocket; |
| import com.android.nfc.DeviceHost.LlcpSocket; |
| import com.android.nfc.DeviceHost.NfcDepEndpoint; |
| import com.android.nfc.DeviceHost.TagEndpoint; |
| import com.android.nfc.cardemulation.CardEmulationManager; |
| import com.android.nfc.dhimpl.NativeNfcManager; |
| import com.android.nfc.handover.HandoverDataParser; |
| |
| import java.io.FileDescriptor; |
| import java.io.PrintWriter; |
| import java.util.Arrays; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.NoSuchElementException; |
| |
| |
| public class NfcService implements DeviceHostListener { |
| static final boolean DBG = false; |
| static final String TAG = "NfcService"; |
| |
| public static final String SERVICE_NAME = "nfc"; |
| |
| public static final String PREF = "NfcServicePrefs"; |
| |
| static final String PREF_NFC_ON = "nfc_on"; |
| static final boolean NFC_ON_DEFAULT = true; |
| static final String PREF_NDEF_PUSH_ON = "ndef_push_on"; |
| static final boolean NDEF_PUSH_ON_DEFAULT = true; |
| static final String PREF_FIRST_BEAM = "first_beam"; |
| static final String PREF_FIRST_BOOT = "first_boot"; |
| static final String PREF_AIRPLANE_OVERRIDE = "airplane_override"; |
| |
| static final int MSG_NDEF_TAG = 0; |
| static final int MSG_LLCP_LINK_ACTIVATION = 1; |
| static final int MSG_LLCP_LINK_DEACTIVATED = 2; |
| static final int MSG_MOCK_NDEF = 3; |
| static final int MSG_LLCP_LINK_FIRST_PACKET = 4; |
| static final int MSG_ROUTE_AID = 5; |
| static final int MSG_UNROUTE_AID = 6; |
| static final int MSG_COMMIT_ROUTING = 7; |
| static final int MSG_INVOKE_BEAM = 8; |
| static final int MSG_RF_FIELD_ACTIVATED = 9; |
| static final int MSG_RF_FIELD_DEACTIVATED = 10; |
| static final int MSG_RESUME_POLLING = 11; |
| |
| static final long MAX_POLLING_PAUSE_TIMEOUT = 40000; |
| |
| static final int TASK_ENABLE = 1; |
| static final int TASK_DISABLE = 2; |
| static final int TASK_BOOT = 3; |
| |
| // Polling technology masks |
| static final int NFC_POLL_A = 0x01; |
| static final int NFC_POLL_B = 0x02; |
| static final int NFC_POLL_F = 0x04; |
| static final int NFC_POLL_ISO15693 = 0x08; |
| static final int NFC_POLL_B_PRIME = 0x10; |
| static final int NFC_POLL_KOVIO = 0x20; |
| |
| // minimum screen state that enables NFC polling |
| static final int NFC_POLLING_MODE = ScreenStateHelper.SCREEN_STATE_ON_UNLOCKED; |
| |
| // Time to wait for NFC controller to initialize before watchdog |
| // goes off. This time is chosen large, because firmware download |
| // may be a part of initialization. |
| static final int INIT_WATCHDOG_MS = 90000; |
| |
| // Time to wait for routing to be applied before watchdog |
| // goes off |
| static final int ROUTING_WATCHDOG_MS = 10000; |
| |
| // Default delay used for presence checks |
| static final int DEFAULT_PRESENCE_CHECK_DELAY = 125; |
| |
| // The amount of time we wait before manually launching |
| // the Beam animation when called through the share menu. |
| static final int INVOKE_BEAM_DELAY_MS = 1000; |
| |
| // RF field events as defined in NFC extras |
| public static final String ACTION_RF_FIELD_ON_DETECTED = |
| "com.android.nfc_extras.action.RF_FIELD_ON_DETECTED"; |
| public static final String ACTION_RF_FIELD_OFF_DETECTED = |
| "com.android.nfc_extras.action.RF_FIELD_OFF_DETECTED"; |
| |
| // for use with playSound() |
| public static final int SOUND_START = 0; |
| public static final int SOUND_END = 1; |
| public static final int SOUND_ERROR = 2; |
| |
| public static final String ACTION_LLCP_UP = |
| "com.android.nfc.action.LLCP_UP"; |
| |
| public static final String ACTION_LLCP_DOWN = |
| "com.android.nfc.action.LLCP_DOWN"; |
| |
| // Timeout to re-apply routing if a tag was present and we postponed it |
| private static final int APPLY_ROUTING_RETRY_TIMEOUT_MS = 5000; |
| |
| private final UserManager mUserManager; |
| |
| // NFC Execution Environment |
| // fields below are protected by this |
| private final ReaderModeDeathRecipient mReaderModeDeathRecipient = |
| new ReaderModeDeathRecipient(); |
| private final NfcUnlockManager mNfcUnlockManager; |
| |
| private final NfceeAccessControl mNfceeAccessControl; |
| |
| List<PackageInfo> mInstalledPackages; // cached version of installed packages |
| |
| // fields below are used in multiple threads and protected by synchronized(this) |
| final HashMap<Integer, Object> mObjectMap = new HashMap<Integer, Object>(); |
| int mScreenState; |
| boolean mInProvisionMode; // whether we're in setup wizard and enabled NFC provisioning |
| boolean mIsNdefPushEnabled; |
| NfcDiscoveryParameters mCurrentDiscoveryParameters = |
| NfcDiscoveryParameters.getNfcOffParameters(); |
| |
| ReaderModeParams mReaderModeParams; |
| |
| // mState is protected by this, however it is only modified in onCreate() |
| // and the default AsyncTask thread so it is read unprotected from that |
| // thread |
| int mState; // one of NfcAdapter.STATE_ON, STATE_TURNING_ON, etc |
| // fields below are final after onCreate() |
| Context mContext; |
| private DeviceHost mDeviceHost; |
| private SharedPreferences mPrefs; |
| private SharedPreferences.Editor mPrefsEditor; |
| private PowerManager.WakeLock mRoutingWakeLock; |
| |
| int mStartSound; |
| int mEndSound; |
| int mErrorSound; |
| SoundPool mSoundPool; // playback synchronized on this |
| P2pLinkManager mP2pLinkManager; |
| TagService mNfcTagService; |
| NfcAdapterService mNfcAdapter; |
| boolean mIsAirplaneSensitive; |
| boolean mIsAirplaneToggleable; |
| boolean mIsDebugBuild; |
| boolean mIsHceCapable; |
| boolean mPollingPaused; |
| |
| private NfcDispatcher mNfcDispatcher; |
| private PowerManager mPowerManager; |
| private KeyguardManager mKeyguard; |
| private HandoverDataParser mHandoverDataParser; |
| private ContentResolver mContentResolver; |
| private CardEmulationManager mCardEmulationManager; |
| |
| private ScreenStateHelper mScreenStateHelper; |
| private ForegroundUtils mForegroundUtils; |
| |
| private int mUserId; |
| private static NfcService sService; |
| |
| public static NfcService getInstance() { |
| return sService; |
| } |
| |
| @Override |
| public void onRemoteEndpointDiscovered(TagEndpoint tag) { |
| sendMessage(NfcService.MSG_NDEF_TAG, tag); |
| } |
| |
| /** |
| * Notifies transaction |
| */ |
| @Override |
| public void onHostCardEmulationActivated() { |
| if (mCardEmulationManager != null) { |
| mCardEmulationManager.onHostCardEmulationActivated(); |
| } |
| } |
| |
| @Override |
| public void onHostCardEmulationData(byte[] data) { |
| if (mCardEmulationManager != null) { |
| mCardEmulationManager.onHostCardEmulationData(data); |
| } |
| } |
| |
| @Override |
| public void onHostCardEmulationDeactivated() { |
| if (mCardEmulationManager != null) { |
| mCardEmulationManager.onHostCardEmulationDeactivated(); |
| } |
| } |
| |
| /** |
| * Notifies P2P Device detected, to activate LLCP link |
| */ |
| @Override |
| public void onLlcpLinkActivated(NfcDepEndpoint device) { |
| sendMessage(NfcService.MSG_LLCP_LINK_ACTIVATION, device); |
| } |
| |
| /** |
| * Notifies P2P Device detected, to activate LLCP link |
| */ |
| @Override |
| public void onLlcpLinkDeactivated(NfcDepEndpoint device) { |
| sendMessage(NfcService.MSG_LLCP_LINK_DEACTIVATED, device); |
| } |
| |
| /** |
| * Notifies P2P Device detected, first packet received over LLCP link |
| */ |
| @Override |
| public void onLlcpFirstPacketReceived(NfcDepEndpoint device) { |
| sendMessage(NfcService.MSG_LLCP_LINK_FIRST_PACKET, device); |
| } |
| |
| @Override |
| public void onRemoteFieldActivated() { |
| sendMessage(NfcService.MSG_RF_FIELD_ACTIVATED, null); |
| } |
| |
| @Override |
| public void onRemoteFieldDeactivated() { |
| sendMessage(NfcService.MSG_RF_FIELD_DEACTIVATED, null); |
| } |
| |
| final class ReaderModeParams { |
| public int flags; |
| public IAppCallback callback; |
| public int presenceCheckDelay; |
| } |
| |
| public NfcService(Application nfcApplication) { |
| mUserId = ActivityManager.getCurrentUser(); |
| mContext = nfcApplication; |
| |
| mNfcTagService = new TagService(); |
| mNfcAdapter = new NfcAdapterService(); |
| Log.i(TAG, "Starting NFC service"); |
| |
| sService = this; |
| |
| mScreenStateHelper = new ScreenStateHelper(mContext); |
| mContentResolver = mContext.getContentResolver(); |
| mDeviceHost = new NativeNfcManager(mContext, this); |
| |
| mNfcUnlockManager = NfcUnlockManager.getInstance(); |
| |
| mHandoverDataParser = new HandoverDataParser(); |
| boolean isNfcProvisioningEnabled = false; |
| try { |
| isNfcProvisioningEnabled = mContext.getResources().getBoolean( |
| R.bool.enable_nfc_provisioning); |
| } catch (NotFoundException e) { |
| } |
| |
| if (isNfcProvisioningEnabled) { |
| mInProvisionMode = Settings.Secure.getInt(mContentResolver, |
| Settings.Global.DEVICE_PROVISIONED, 0) == 0; |
| } else { |
| mInProvisionMode = false; |
| } |
| |
| mNfcDispatcher = new NfcDispatcher(mContext, mHandoverDataParser, mInProvisionMode); |
| mP2pLinkManager = new P2pLinkManager(mContext, mHandoverDataParser, |
| mDeviceHost.getDefaultLlcpMiu(), mDeviceHost.getDefaultLlcpRwSize()); |
| |
| mPrefs = mContext.getSharedPreferences(PREF, Context.MODE_PRIVATE); |
| mPrefsEditor = mPrefs.edit(); |
| |
| mNfceeAccessControl = new NfceeAccessControl(mContext); |
| |
| mState = NfcAdapter.STATE_OFF; |
| mIsNdefPushEnabled = mPrefs.getBoolean(PREF_NDEF_PUSH_ON, NDEF_PUSH_ON_DEFAULT); |
| setBeamShareActivityState(mIsNdefPushEnabled); |
| |
| mIsDebugBuild = "userdebug".equals(Build.TYPE) || "eng".equals(Build.TYPE); |
| |
| mPowerManager = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE); |
| |
| mRoutingWakeLock = mPowerManager.newWakeLock( |
| PowerManager.PARTIAL_WAKE_LOCK, "NfcService:mRoutingWakeLock"); |
| |
| mKeyguard = (KeyguardManager) mContext.getSystemService(Context.KEYGUARD_SERVICE); |
| mUserManager = (UserManager) mContext.getSystemService(Context.USER_SERVICE); |
| |
| mScreenState = mScreenStateHelper.checkScreenState(); |
| |
| ServiceManager.addService(SERVICE_NAME, mNfcAdapter); |
| |
| // Intents for all users |
| IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_OFF); |
| filter.addAction(Intent.ACTION_SCREEN_ON); |
| filter.addAction(Intent.ACTION_USER_PRESENT); |
| filter.addAction(Intent.ACTION_USER_SWITCHED); |
| registerForAirplaneMode(filter); |
| mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, null); |
| |
| IntentFilter ownerFilter = new IntentFilter(Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE); |
| ownerFilter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); |
| mContext.registerReceiver(mOwnerReceiver, ownerFilter); |
| |
| ownerFilter = new IntentFilter(); |
| ownerFilter.addAction(Intent.ACTION_PACKAGE_ADDED); |
| ownerFilter.addAction(Intent.ACTION_PACKAGE_REMOVED); |
| ownerFilter.addDataScheme("package"); |
| mContext.registerReceiver(mOwnerReceiver, ownerFilter); |
| |
| IntentFilter policyFilter = new IntentFilter(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); |
| mContext.registerReceiverAsUser(mPolicyReceiver, UserHandle.ALL, policyFilter, null, null); |
| |
| updatePackageCache(); |
| |
| PackageManager pm = mContext.getPackageManager(); |
| mIsHceCapable = pm.hasSystemFeature(PackageManager.FEATURE_NFC_HOST_CARD_EMULATION); |
| if (mIsHceCapable) { |
| mCardEmulationManager = new CardEmulationManager(mContext); |
| } |
| mForegroundUtils = ForegroundUtils.getInstance(); |
| new EnableDisableTask().execute(TASK_BOOT); // do blocking boot tasks |
| } |
| |
| void initSoundPool() { |
| synchronized (this) { |
| if (mSoundPool == null) { |
| mSoundPool = new SoundPool(1, AudioManager.STREAM_NOTIFICATION, 0); |
| mStartSound = mSoundPool.load(mContext, R.raw.start, 1); |
| mEndSound = mSoundPool.load(mContext, R.raw.end, 1); |
| mErrorSound = mSoundPool.load(mContext, R.raw.error, 1); |
| } |
| } |
| } |
| |
| void releaseSoundPool() { |
| synchronized (this) { |
| if (mSoundPool != null) { |
| mSoundPool.release(); |
| mSoundPool = null; |
| } |
| } |
| } |
| |
| void registerForAirplaneMode(IntentFilter filter) { |
| final String airplaneModeRadios = Settings.System.getString(mContentResolver, |
| Settings.Global.AIRPLANE_MODE_RADIOS); |
| final String toggleableRadios = Settings.System.getString(mContentResolver, |
| Settings.Global.AIRPLANE_MODE_TOGGLEABLE_RADIOS); |
| |
| mIsAirplaneSensitive = airplaneModeRadios == null ? true : |
| airplaneModeRadios.contains(Settings.Global.RADIO_NFC); |
| mIsAirplaneToggleable = toggleableRadios == null ? false : |
| toggleableRadios.contains(Settings.Global.RADIO_NFC); |
| |
| if (mIsAirplaneSensitive) { |
| filter.addAction(Intent.ACTION_AIRPLANE_MODE_CHANGED); |
| } |
| } |
| |
| void updatePackageCache() { |
| PackageManager pm = mContext.getPackageManager(); |
| List<PackageInfo> packages = pm.getInstalledPackages(0, UserHandle.USER_OWNER); |
| synchronized (this) { |
| mInstalledPackages = packages; |
| } |
| } |
| |
| /** |
| * Manages tasks that involve turning on/off the NFC controller. |
| * <p/> |
| * <p>All work that might turn the NFC adapter on or off must be done |
| * through this task, to keep the handling of mState simple. |
| * In other words, mState is only modified in these tasks (and we |
| * don't need a lock to read it in these tasks). |
| * <p/> |
| * <p>These tasks are all done on the same AsyncTask background |
| * thread, so they are serialized. Each task may temporarily transition |
| * mState to STATE_TURNING_OFF or STATE_TURNING_ON, but must exit in |
| * either STATE_ON or STATE_OFF. This way each task can be guaranteed |
| * of starting in either STATE_OFF or STATE_ON, without needing to hold |
| * NfcService.this for the entire task. |
| * <p/> |
| * <p>AsyncTask's are also implicitly queued. This is useful for corner |
| * cases like turning airplane mode on while TASK_ENABLE is in progress. |
| * The TASK_DISABLE triggered by airplane mode will be correctly executed |
| * immediately after TASK_ENABLE is complete. This seems like the most sane |
| * way to deal with these situations. |
| * <p/> |
| * <p>{@link #TASK_ENABLE} enables the NFC adapter, without changing |
| * preferences |
| * <p>{@link #TASK_DISABLE} disables the NFC adapter, without changing |
| * preferences |
| * <p>{@link #TASK_BOOT} does first boot work and may enable NFC |
| */ |
| class EnableDisableTask extends AsyncTask<Integer, Void, Void> { |
| @Override |
| protected Void doInBackground(Integer... params) { |
| // Sanity check mState |
| switch (mState) { |
| case NfcAdapter.STATE_TURNING_OFF: |
| case NfcAdapter.STATE_TURNING_ON: |
| Log.e(TAG, "Processing EnableDisable task " + params[0] + " from bad state " + |
| mState); |
| return null; |
| } |
| |
| /* AsyncTask sets this thread to THREAD_PRIORITY_BACKGROUND, |
| * override with the default. THREAD_PRIORITY_BACKGROUND causes |
| * us to service software I2C too slow for firmware download |
| * with the NXP PN544. |
| * TODO: move this to the DAL I2C layer in libnfc-nxp, since this |
| * problem only occurs on I2C platforms using PN544 |
| */ |
| Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT); |
| |
| switch (params[0].intValue()) { |
| case TASK_ENABLE: |
| enableInternal(); |
| break; |
| case TASK_DISABLE: |
| disableInternal(); |
| break; |
| case TASK_BOOT: |
| Log.d(TAG, "checking on firmware download"); |
| boolean airplaneOverride = mPrefs.getBoolean(PREF_AIRPLANE_OVERRIDE, false); |
| if (mPrefs.getBoolean(PREF_NFC_ON, NFC_ON_DEFAULT) && |
| (!mIsAirplaneSensitive || !isAirplaneModeOn() || airplaneOverride)) { |
| Log.d(TAG, "NFC is on. Doing normal stuff"); |
| enableInternal(); |
| } else { |
| Log.d(TAG, "NFC is off. Checking firmware version"); |
| mDeviceHost.checkFirmware(); |
| } |
| if (mPrefs.getBoolean(PREF_FIRST_BOOT, true)) { |
| Log.i(TAG, "First Boot"); |
| mPrefsEditor.putBoolean(PREF_FIRST_BOOT, false); |
| mPrefsEditor.apply(); |
| } |
| break; |
| } |
| |
| // Restore default AsyncTask priority |
| Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); |
| return null; |
| } |
| |
| /** |
| * Enable NFC adapter functions. |
| * Does not toggle preferences. |
| */ |
| boolean enableInternal() { |
| if (mState == NfcAdapter.STATE_ON) { |
| return true; |
| } |
| Log.i(TAG, "Enabling NFC"); |
| updateState(NfcAdapter.STATE_TURNING_ON); |
| |
| WatchDogThread watchDog = new WatchDogThread("enableInternal", INIT_WATCHDOG_MS); |
| watchDog.start(); |
| try { |
| mRoutingWakeLock.acquire(); |
| try { |
| if (!mDeviceHost.initialize()) { |
| Log.w(TAG, "Error enabling NFC"); |
| updateState(NfcAdapter.STATE_OFF); |
| return false; |
| } |
| } finally { |
| mRoutingWakeLock.release(); |
| } |
| } finally { |
| watchDog.cancel(); |
| } |
| |
| if (mIsHceCapable) { |
| // Generate the initial card emulation routing table |
| mCardEmulationManager.onNfcEnabled(); |
| } |
| |
| synchronized (NfcService.this) { |
| mObjectMap.clear(); |
| mP2pLinkManager.enableDisable(mIsNdefPushEnabled, true); |
| updateState(NfcAdapter.STATE_ON); |
| } |
| |
| initSoundPool(); |
| |
| /* Start polling loop */ |
| |
| applyRouting(true); |
| return true; |
| } |
| |
| /** |
| * Disable all NFC adapter functions. |
| * Does not toggle preferences. |
| */ |
| boolean disableInternal() { |
| if (mState == NfcAdapter.STATE_OFF) { |
| return true; |
| } |
| Log.i(TAG, "Disabling NFC"); |
| updateState(NfcAdapter.STATE_TURNING_OFF); |
| |
| /* Sometimes mDeviceHost.deinitialize() hangs, use a watch-dog. |
| * Implemented with a new thread (instead of a Handler or AsyncTask), |
| * because the UI Thread and AsyncTask thread-pools can also get hung |
| * when the NFC controller stops responding */ |
| WatchDogThread watchDog = new WatchDogThread("disableInternal", ROUTING_WATCHDOG_MS); |
| watchDog.start(); |
| |
| if (mIsHceCapable) { |
| mCardEmulationManager.onNfcDisabled(); |
| } |
| |
| mP2pLinkManager.enableDisable(false, false); |
| |
| // Stop watchdog if tag present |
| // A convenient way to stop the watchdog properly consists of |
| // disconnecting the tag. The polling loop shall be stopped before |
| // to avoid the tag being discovered again. |
| maybeDisconnectTarget(); |
| |
| mNfcDispatcher.setForegroundDispatch(null, null, null); |
| |
| |
| boolean result = mDeviceHost.deinitialize(); |
| if (DBG) Log.d(TAG, "mDeviceHost.deinitialize() = " + result); |
| |
| watchDog.cancel(); |
| |
| synchronized (NfcService.this) { |
| mCurrentDiscoveryParameters = NfcDiscoveryParameters.getNfcOffParameters(); |
| updateState(NfcAdapter.STATE_OFF); |
| } |
| |
| releaseSoundPool(); |
| |
| return result; |
| } |
| |
| void updateState(int newState) { |
| synchronized (NfcService.this) { |
| if (newState == mState) { |
| return; |
| } |
| mState = newState; |
| Intent intent = new Intent(NfcAdapter.ACTION_ADAPTER_STATE_CHANGED); |
| intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); |
| intent.putExtra(NfcAdapter.EXTRA_ADAPTER_STATE, mState); |
| mContext.sendBroadcastAsUser(intent, UserHandle.CURRENT); |
| } |
| } |
| } |
| |
| void saveNfcOnSetting(boolean on) { |
| synchronized (NfcService.this) { |
| mPrefsEditor.putBoolean(PREF_NFC_ON, on); |
| mPrefsEditor.apply(); |
| } |
| } |
| |
| public void playSound(int sound) { |
| synchronized (this) { |
| if (mSoundPool == null) { |
| Log.w(TAG, "Not playing sound when NFC is disabled"); |
| return; |
| } |
| switch (sound) { |
| case SOUND_START: |
| mSoundPool.play(mStartSound, 1.0f, 1.0f, 0, 0, 1.0f); |
| break; |
| case SOUND_END: |
| mSoundPool.play(mEndSound, 1.0f, 1.0f, 0, 0, 1.0f); |
| break; |
| case SOUND_ERROR: |
| mSoundPool.play(mErrorSound, 1.0f, 1.0f, 0, 0, 1.0f); |
| break; |
| } |
| } |
| } |
| |
| synchronized int getUserId() { |
| return mUserId; |
| } |
| |
| void setBeamShareActivityState(boolean enabled) { |
| UserManager um = (UserManager) mContext.getSystemService(Context.USER_SERVICE); |
| // Propagate the state change to all user profiles related to the current |
| // user. Note that the list returned by getUserProfiles contains the |
| // current user. |
| List <UserHandle> luh = um.getUserProfiles(); |
| for (UserHandle uh : luh){ |
| enforceBeamShareActivityPolicy(mContext, uh, enabled); |
| } |
| } |
| |
| void enforceBeamShareActivityPolicy(Context context, UserHandle uh, |
| boolean isGlobalEnabled){ |
| UserManager um = (UserManager) context.getSystemService(Context.USER_SERVICE); |
| IPackageManager mIpm = IPackageManager.Stub.asInterface(ServiceManager.getService("package")); |
| boolean isActiveForUser = |
| (!um.hasUserRestriction(UserManager.DISALLOW_OUTGOING_BEAM, uh)) && |
| isGlobalEnabled; |
| if (DBG){ |
| Log.d(TAG, "Enforcing a policy change on user: " + uh + |
| ", isActiveForUser = " + isActiveForUser); |
| } |
| try { |
| mIpm.setComponentEnabledSetting(new ComponentName( |
| BeamShareActivity.class.getPackageName$(), |
| BeamShareActivity.class.getName()), |
| isActiveForUser ? |
| PackageManager.COMPONENT_ENABLED_STATE_ENABLED : |
| PackageManager.COMPONENT_ENABLED_STATE_DISABLED, |
| PackageManager.DONT_KILL_APP, |
| uh.getIdentifier()); |
| } catch (RemoteException e) { |
| Log.w(TAG, "Unable to change Beam status for user " + uh); |
| } |
| } |
| |
| final class NfcAdapterService extends INfcAdapter.Stub { |
| @Override |
| public boolean enable() throws RemoteException { |
| NfcPermissions.enforceAdminPermissions(mContext); |
| |
| saveNfcOnSetting(true); |
| |
| if (mIsAirplaneSensitive && isAirplaneModeOn()) { |
| if (!mIsAirplaneToggleable) { |
| Log.i(TAG, "denying enable() request (airplane mode)"); |
| return false; |
| } |
| // Make sure the override survives a reboot |
| mPrefsEditor.putBoolean(PREF_AIRPLANE_OVERRIDE, true); |
| mPrefsEditor.apply(); |
| } |
| new EnableDisableTask().execute(TASK_ENABLE); |
| |
| return true; |
| } |
| |
| @Override |
| public boolean disable(boolean saveState) throws RemoteException { |
| NfcPermissions.enforceAdminPermissions(mContext); |
| |
| if (saveState) { |
| saveNfcOnSetting(false); |
| } |
| |
| new EnableDisableTask().execute(TASK_DISABLE); |
| |
| return true; |
| } |
| |
| @Override |
| public void pausePolling(int timeoutInMs) { |
| NfcPermissions.enforceAdminPermissions(mContext); |
| |
| if (timeoutInMs <= 0 || timeoutInMs > MAX_POLLING_PAUSE_TIMEOUT) { |
| Log.e(TAG, "Refusing to pause polling for " + timeoutInMs + "ms."); |
| return; |
| } |
| |
| synchronized (NfcService.this) { |
| mPollingPaused = true; |
| mDeviceHost.disableDiscovery(); |
| mHandler.sendMessageDelayed( |
| mHandler.obtainMessage(MSG_RESUME_POLLING), timeoutInMs); |
| } |
| } |
| |
| @Override |
| public void resumePolling() { |
| NfcPermissions.enforceAdminPermissions(mContext); |
| |
| synchronized (NfcService.this) { |
| if (!mPollingPaused) { |
| return; |
| } |
| |
| mHandler.removeMessages(MSG_RESUME_POLLING); |
| mPollingPaused = false; |
| new ApplyRoutingTask().execute(); |
| } |
| } |
| |
| @Override |
| public boolean isNdefPushEnabled() throws RemoteException { |
| synchronized (NfcService.this) { |
| return mState == NfcAdapter.STATE_ON && mIsNdefPushEnabled; |
| } |
| } |
| |
| @Override |
| public boolean enableNdefPush() throws RemoteException { |
| NfcPermissions.enforceAdminPermissions(mContext); |
| synchronized (NfcService.this) { |
| if (mIsNdefPushEnabled) { |
| return true; |
| } |
| Log.i(TAG, "enabling NDEF Push"); |
| mPrefsEditor.putBoolean(PREF_NDEF_PUSH_ON, true); |
| mPrefsEditor.apply(); |
| mIsNdefPushEnabled = true; |
| setBeamShareActivityState(true); |
| if (isNfcEnabled()) { |
| mP2pLinkManager.enableDisable(true, true); |
| } |
| } |
| return true; |
| } |
| |
| @Override |
| public boolean disableNdefPush() throws RemoteException { |
| NfcPermissions.enforceAdminPermissions(mContext); |
| synchronized (NfcService.this) { |
| if (!mIsNdefPushEnabled) { |
| return true; |
| } |
| Log.i(TAG, "disabling NDEF Push"); |
| mPrefsEditor.putBoolean(PREF_NDEF_PUSH_ON, false); |
| mPrefsEditor.apply(); |
| mIsNdefPushEnabled = false; |
| setBeamShareActivityState(false); |
| if (isNfcEnabled()) { |
| mP2pLinkManager.enableDisable(false, true); |
| } |
| } |
| return true; |
| } |
| |
| @Override |
| public void setForegroundDispatch(PendingIntent intent, |
| IntentFilter[] filters, TechListParcel techListsParcel) { |
| NfcPermissions.enforceUserPermissions(mContext); |
| if (!mForegroundUtils.isInForeground(Binder.getCallingUid())) { |
| Log.e(TAG, "setForegroundDispatch: Caller not in foreground."); |
| return; |
| } |
| // Short-cut the disable path |
| if (intent == null && filters == null && techListsParcel == null) { |
| mNfcDispatcher.setForegroundDispatch(null, null, null); |
| return; |
| } |
| |
| // Validate the IntentFilters |
| if (filters != null) { |
| if (filters.length == 0) { |
| filters = null; |
| } else { |
| for (IntentFilter filter : filters) { |
| if (filter == null) { |
| throw new IllegalArgumentException("null IntentFilter"); |
| } |
| } |
| } |
| } |
| |
| // Validate the tech lists |
| String[][] techLists = null; |
| if (techListsParcel != null) { |
| techLists = techListsParcel.getTechLists(); |
| } |
| |
| mNfcDispatcher.setForegroundDispatch(intent, filters, techLists); |
| } |
| |
| |
| @Override |
| public void setAppCallback(IAppCallback callback) { |
| NfcPermissions.enforceUserPermissions(mContext); |
| |
| // don't allow Beam for managed profiles, or devices with a device owner or policy owner |
| UserInfo userInfo = mUserManager.getUserInfo(UserHandle.getCallingUserId()); |
| if(!mUserManager.hasUserRestriction( |
| UserManager.DISALLOW_OUTGOING_BEAM, userInfo.getUserHandle())) { |
| mP2pLinkManager.setNdefCallback(callback, Binder.getCallingUid()); |
| } else if (DBG) { |
| Log.d(TAG, "Disabling default Beam behavior"); |
| } |
| } |
| |
| @Override |
| public void verifyNfcPermission() { |
| NfcPermissions.enforceUserPermissions(mContext); |
| } |
| |
| @Override |
| public void invokeBeam() { |
| NfcPermissions.enforceUserPermissions(mContext); |
| |
| if (mForegroundUtils.isInForeground(Binder.getCallingUid())) { |
| mP2pLinkManager.onManualBeamInvoke(null); |
| } else { |
| Log.e(TAG, "Calling activity not in foreground."); |
| } |
| } |
| |
| @Override |
| public void invokeBeamInternal(BeamShareData shareData) { |
| NfcPermissions.enforceAdminPermissions(mContext); |
| Message msg = Message.obtain(); |
| msg.what = MSG_INVOKE_BEAM; |
| msg.obj = shareData; |
| // We have to send this message delayed for two reasons: |
| // 1) This is an IPC call from BeamShareActivity, which is |
| // running when the user has invoked Beam through the |
| // share menu. As soon as BeamShareActivity closes, the UI |
| // will need some time to rebuild the original Activity. |
| // Waiting here for a while gives a better chance of the UI |
| // having been rebuilt, which means the screenshot that the |
| // Beam animation is using will be more accurate. |
| // 2) Similarly, because the Activity that launched BeamShareActivity |
| // with an ACTION_SEND intent is now in paused state, the NDEF |
| // callbacks that it has registered may no longer be valid. |
| // Allowing the original Activity to resume will make sure we |
| // it has a chance to re-register the NDEF message / callback, |
| // so we share the right data. |
| // |
| // Note that this is somewhat of a hack because the delay may not actually |
| // be long enough for 2) on very slow devices, but there's no better |
| // way to do this right now without additional framework changes. |
| mHandler.sendMessageDelayed(msg, INVOKE_BEAM_DELAY_MS); |
| } |
| |
| @Override |
| public INfcTag getNfcTagInterface() throws RemoteException { |
| return mNfcTagService; |
| } |
| |
| @Override |
| public INfcCardEmulation getNfcCardEmulationInterface() { |
| if (mIsHceCapable) { |
| return mCardEmulationManager.getNfcCardEmulationInterface(); |
| } else { |
| return null; |
| } |
| } |
| |
| @Override |
| public int getState() throws RemoteException { |
| synchronized (NfcService.this) { |
| return mState; |
| } |
| } |
| |
| @Override |
| protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| NfcService.this.dump(fd, pw, args); |
| } |
| |
| @Override |
| public void dispatch(Tag tag) throws RemoteException { |
| NfcPermissions.enforceAdminPermissions(mContext); |
| mNfcDispatcher.dispatchTag(tag); |
| } |
| |
| @Override |
| public void setP2pModes(int initiatorModes, int targetModes) throws RemoteException { |
| NfcPermissions.enforceAdminPermissions(mContext); |
| mDeviceHost.setP2pInitiatorModes(initiatorModes); |
| mDeviceHost.setP2pTargetModes(targetModes); |
| applyRouting(true); |
| } |
| |
| @Override |
| public void setReaderMode(IBinder binder, IAppCallback callback, int flags, Bundle extras) |
| throws RemoteException { |
| int callingUid = Binder.getCallingUid(); |
| if (callingUid != Process.SYSTEM_UID && !mForegroundUtils.isInForeground(callingUid)) { |
| Log.e(TAG, "setReaderMode: Caller is not in foreground and is not system process."); |
| return; |
| } |
| synchronized (NfcService.this) { |
| if (!isNfcEnabled()) { |
| Log.e(TAG, "setReaderMode() called while NFC is not enabled."); |
| return; |
| } |
| if (flags != 0) { |
| try { |
| mReaderModeParams = new ReaderModeParams(); |
| mReaderModeParams.callback = callback; |
| mReaderModeParams.flags = flags; |
| mReaderModeParams.presenceCheckDelay = extras != null |
| ? (extras.getInt(NfcAdapter.EXTRA_READER_PRESENCE_CHECK_DELAY, |
| DEFAULT_PRESENCE_CHECK_DELAY)) |
| : DEFAULT_PRESENCE_CHECK_DELAY; |
| binder.linkToDeath(mReaderModeDeathRecipient, 0); |
| } catch (RemoteException e) { |
| Log.e(TAG, "Remote binder has already died."); |
| return; |
| } |
| } else { |
| try { |
| mReaderModeParams = null; |
| binder.unlinkToDeath(mReaderModeDeathRecipient, 0); |
| } catch (NoSuchElementException e) { |
| Log.e(TAG, "Reader mode Binder was never registered."); |
| } |
| } |
| applyRouting(false); |
| } |
| } |
| |
| @Override |
| public INfcAdapterExtras getNfcAdapterExtrasInterface(String pkg) throws RemoteException { |
| // nfc-extras implementation is no longer present in AOSP. |
| return null; |
| } |
| |
| @Override |
| public void addNfcUnlockHandler(INfcUnlockHandler unlockHandler, int[] techList) { |
| NfcPermissions.enforceAdminPermissions(mContext); |
| |
| int lockscreenPollMask = computeLockscreenPollMask(techList); |
| synchronized (NfcService.this) { |
| mNfcUnlockManager.addUnlockHandler(unlockHandler, lockscreenPollMask); |
| } |
| |
| applyRouting(false); |
| } |
| |
| @Override |
| public void removeNfcUnlockHandler(INfcUnlockHandler token) throws RemoteException { |
| synchronized (NfcService.this) { |
| mNfcUnlockManager.removeUnlockHandler(token.asBinder()); |
| } |
| |
| applyRouting(false); |
| } |
| |
| private int computeLockscreenPollMask(int[] techList) { |
| |
| Map<Integer, Integer> techCodeToMask = new HashMap<Integer, Integer>(); |
| |
| techCodeToMask.put(TagTechnology.NFC_A, NfcService.NFC_POLL_A); |
| techCodeToMask.put(TagTechnology.NFC_B, NfcService.NFC_POLL_B); |
| techCodeToMask.put(TagTechnology.NFC_V, NfcService.NFC_POLL_ISO15693); |
| techCodeToMask.put(TagTechnology.NFC_F, NfcService.NFC_POLL_F); |
| techCodeToMask.put(TagTechnology.NFC_BARCODE, NfcService.NFC_POLL_KOVIO); |
| |
| int mask = 0; |
| |
| for (int i = 0; i < techList.length; i++) { |
| if (techCodeToMask.containsKey(techList[i])) { |
| mask |= techCodeToMask.get(techList[i]).intValue(); |
| } |
| } |
| |
| return mask; |
| } |
| } |
| |
| final class ReaderModeDeathRecipient implements IBinder.DeathRecipient { |
| @Override |
| public void binderDied() { |
| synchronized (NfcService.this) { |
| if (mReaderModeParams != null) { |
| mReaderModeParams = null; |
| applyRouting(false); |
| } |
| } |
| } |
| } |
| |
| final class TagService extends INfcTag.Stub { |
| @Override |
| public int close(int nativeHandle) throws RemoteException { |
| NfcPermissions.enforceUserPermissions(mContext); |
| |
| TagEndpoint tag = null; |
| |
| if (!isNfcEnabled()) { |
| return ErrorCodes.ERROR_NOT_INITIALIZED; |
| } |
| |
| /* find the tag in the hmap */ |
| tag = (TagEndpoint) findObject(nativeHandle); |
| if (tag != null) { |
| /* Remove the device from the hmap */ |
| unregisterObject(nativeHandle); |
| tag.disconnect(); |
| return ErrorCodes.SUCCESS; |
| } |
| /* Restart polling loop for notification */ |
| applyRouting(true); |
| return ErrorCodes.ERROR_DISCONNECT; |
| } |
| |
| @Override |
| public int connect(int nativeHandle, int technology) throws RemoteException { |
| NfcPermissions.enforceUserPermissions(mContext); |
| |
| TagEndpoint tag = null; |
| |
| if (!isNfcEnabled()) { |
| return ErrorCodes.ERROR_NOT_INITIALIZED; |
| } |
| |
| /* find the tag in the hmap */ |
| tag = (TagEndpoint) findObject(nativeHandle); |
| if (tag == null) { |
| return ErrorCodes.ERROR_DISCONNECT; |
| } |
| |
| if (!tag.isPresent()) { |
| return ErrorCodes.ERROR_DISCONNECT; |
| } |
| |
| // Note that on most tags, all technologies are behind a single |
| // handle. This means that the connect at the lower levels |
| // will do nothing, as the tag is already connected to that handle. |
| if (tag.connect(technology)) { |
| return ErrorCodes.SUCCESS; |
| } else { |
| return ErrorCodes.ERROR_DISCONNECT; |
| } |
| } |
| |
| @Override |
| public int reconnect(int nativeHandle) throws RemoteException { |
| NfcPermissions.enforceUserPermissions(mContext); |
| |
| TagEndpoint tag = null; |
| |
| // Check if NFC is enabled |
| if (!isNfcEnabled()) { |
| return ErrorCodes.ERROR_NOT_INITIALIZED; |
| } |
| |
| /* find the tag in the hmap */ |
| tag = (TagEndpoint) findObject(nativeHandle); |
| if (tag != null) { |
| if (tag.reconnect()) { |
| return ErrorCodes.SUCCESS; |
| } else { |
| return ErrorCodes.ERROR_DISCONNECT; |
| } |
| } |
| return ErrorCodes.ERROR_DISCONNECT; |
| } |
| |
| @Override |
| public int[] getTechList(int nativeHandle) throws RemoteException { |
| NfcPermissions.enforceUserPermissions(mContext); |
| |
| // Check if NFC is enabled |
| if (!isNfcEnabled()) { |
| return null; |
| } |
| |
| /* find the tag in the hmap */ |
| TagEndpoint tag = (TagEndpoint) findObject(nativeHandle); |
| if (tag != null) { |
| return tag.getTechList(); |
| } |
| return null; |
| } |
| |
| @Override |
| public boolean isPresent(int nativeHandle) throws RemoteException { |
| TagEndpoint tag = null; |
| |
| // Check if NFC is enabled |
| if (!isNfcEnabled()) { |
| return false; |
| } |
| |
| /* find the tag in the hmap */ |
| tag = (TagEndpoint) findObject(nativeHandle); |
| if (tag == null) { |
| return false; |
| } |
| |
| return tag.isPresent(); |
| } |
| |
| @Override |
| public boolean isNdef(int nativeHandle) throws RemoteException { |
| NfcPermissions.enforceUserPermissions(mContext); |
| |
| TagEndpoint tag = null; |
| |
| // Check if NFC is enabled |
| if (!isNfcEnabled()) { |
| return false; |
| } |
| |
| /* find the tag in the hmap */ |
| tag = (TagEndpoint) findObject(nativeHandle); |
| int[] ndefInfo = new int[2]; |
| if (tag == null) { |
| return false; |
| } |
| return tag.checkNdef(ndefInfo); |
| } |
| |
| @Override |
| public TransceiveResult transceive(int nativeHandle, byte[] data, boolean raw) |
| throws RemoteException { |
| NfcPermissions.enforceUserPermissions(mContext); |
| |
| TagEndpoint tag = null; |
| byte[] response; |
| |
| // Check if NFC is enabled |
| if (!isNfcEnabled()) { |
| return null; |
| } |
| |
| /* find the tag in the hmap */ |
| tag = (TagEndpoint) findObject(nativeHandle); |
| if (tag != null) { |
| // Check if length is within limits |
| if (data.length > getMaxTransceiveLength(tag.getConnectedTechnology())) { |
| return new TransceiveResult(TransceiveResult.RESULT_EXCEEDED_LENGTH, null); |
| } |
| int[] targetLost = new int[1]; |
| response = tag.transceive(data, raw, targetLost); |
| int result; |
| if (response != null) { |
| result = TransceiveResult.RESULT_SUCCESS; |
| } else if (targetLost[0] == 1) { |
| result = TransceiveResult.RESULT_TAGLOST; |
| } else { |
| result = TransceiveResult.RESULT_FAILURE; |
| } |
| return new TransceiveResult(result, response); |
| } |
| return null; |
| } |
| |
| @Override |
| public NdefMessage ndefRead(int nativeHandle) throws RemoteException { |
| NfcPermissions.enforceUserPermissions(mContext); |
| |
| TagEndpoint tag; |
| |
| // Check if NFC is enabled |
| if (!isNfcEnabled()) { |
| return null; |
| } |
| |
| /* find the tag in the hmap */ |
| tag = (TagEndpoint) findObject(nativeHandle); |
| if (tag != null) { |
| byte[] buf = tag.readNdef(); |
| if (buf == null) { |
| return null; |
| } |
| |
| /* Create an NdefMessage */ |
| try { |
| return new NdefMessage(buf); |
| } catch (FormatException e) { |
| return null; |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public int ndefWrite(int nativeHandle, NdefMessage msg) throws RemoteException { |
| NfcPermissions.enforceUserPermissions(mContext); |
| |
| TagEndpoint tag; |
| |
| // Check if NFC is enabled |
| if (!isNfcEnabled()) { |
| return ErrorCodes.ERROR_NOT_INITIALIZED; |
| } |
| |
| /* find the tag in the hmap */ |
| tag = (TagEndpoint) findObject(nativeHandle); |
| if (tag == null) { |
| return ErrorCodes.ERROR_IO; |
| } |
| |
| if (msg == null) return ErrorCodes.ERROR_INVALID_PARAM; |
| |
| if (tag.writeNdef(msg.toByteArray())) { |
| return ErrorCodes.SUCCESS; |
| } else { |
| return ErrorCodes.ERROR_IO; |
| } |
| |
| } |
| |
| @Override |
| public boolean ndefIsWritable(int nativeHandle) throws RemoteException { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public int ndefMakeReadOnly(int nativeHandle) throws RemoteException { |
| NfcPermissions.enforceUserPermissions(mContext); |
| |
| TagEndpoint tag; |
| |
| // Check if NFC is enabled |
| if (!isNfcEnabled()) { |
| return ErrorCodes.ERROR_NOT_INITIALIZED; |
| } |
| |
| /* find the tag in the hmap */ |
| tag = (TagEndpoint) findObject(nativeHandle); |
| if (tag == null) { |
| return ErrorCodes.ERROR_IO; |
| } |
| |
| if (tag.makeReadOnly()) { |
| return ErrorCodes.SUCCESS; |
| } else { |
| return ErrorCodes.ERROR_IO; |
| } |
| } |
| |
| @Override |
| public int formatNdef(int nativeHandle, byte[] key) throws RemoteException { |
| NfcPermissions.enforceUserPermissions(mContext); |
| |
| TagEndpoint tag; |
| |
| // Check if NFC is enabled |
| if (!isNfcEnabled()) { |
| return ErrorCodes.ERROR_NOT_INITIALIZED; |
| } |
| |
| /* find the tag in the hmap */ |
| tag = (TagEndpoint) findObject(nativeHandle); |
| if (tag == null) { |
| return ErrorCodes.ERROR_IO; |
| } |
| |
| if (tag.formatNdef(key)) { |
| return ErrorCodes.SUCCESS; |
| } else { |
| return ErrorCodes.ERROR_IO; |
| } |
| } |
| |
| @Override |
| public Tag rediscover(int nativeHandle) throws RemoteException { |
| NfcPermissions.enforceUserPermissions(mContext); |
| |
| TagEndpoint tag = null; |
| |
| // Check if NFC is enabled |
| if (!isNfcEnabled()) { |
| return null; |
| } |
| |
| /* find the tag in the hmap */ |
| tag = (TagEndpoint) findObject(nativeHandle); |
| if (tag != null) { |
| // For now the prime usecase for rediscover() is to be able |
| // to access the NDEF technology after formatting without |
| // having to remove the tag from the field, or similar |
| // to have access to NdefFormatable in case low-level commands |
| // were used to remove NDEF. So instead of doing a full stack |
| // rediscover (which is poorly supported at the moment anyway), |
| // we simply remove these two technologies and detect them |
| // again. |
| tag.removeTechnology(TagTechnology.NDEF); |
| tag.removeTechnology(TagTechnology.NDEF_FORMATABLE); |
| tag.findAndReadNdef(); |
| // Build a new Tag object to return |
| Tag newTag = new Tag(tag.getUid(), tag.getTechList(), |
| tag.getTechExtras(), tag.getHandle(), this); |
| return newTag; |
| } |
| return null; |
| } |
| |
| @Override |
| public int setTimeout(int tech, int timeout) throws RemoteException { |
| NfcPermissions.enforceUserPermissions(mContext); |
| boolean success = mDeviceHost.setTimeout(tech, timeout); |
| if (success) { |
| return ErrorCodes.SUCCESS; |
| } else { |
| return ErrorCodes.ERROR_INVALID_PARAM; |
| } |
| } |
| |
| @Override |
| public int getTimeout(int tech) throws RemoteException { |
| NfcPermissions.enforceUserPermissions(mContext); |
| |
| return mDeviceHost.getTimeout(tech); |
| } |
| |
| @Override |
| public void resetTimeouts() throws RemoteException { |
| NfcPermissions.enforceUserPermissions(mContext); |
| |
| mDeviceHost.resetTimeouts(); |
| } |
| |
| @Override |
| public boolean canMakeReadOnly(int ndefType) throws RemoteException { |
| return mDeviceHost.canMakeReadOnly(ndefType); |
| } |
| |
| @Override |
| public int getMaxTransceiveLength(int tech) throws RemoteException { |
| return mDeviceHost.getMaxTransceiveLength(tech); |
| } |
| |
| @Override |
| public boolean getExtendedLengthApdusSupported() throws RemoteException { |
| return mDeviceHost.getExtendedLengthApdusSupported(); |
| } |
| } |
| |
| boolean isNfcEnabledOrShuttingDown() { |
| synchronized (this) { |
| return (mState == NfcAdapter.STATE_ON || mState == NfcAdapter.STATE_TURNING_OFF); |
| } |
| } |
| |
| boolean isNfcEnabled() { |
| synchronized (this) { |
| return mState == NfcAdapter.STATE_ON; |
| } |
| } |
| |
| class WatchDogThread extends Thread { |
| final Object mCancelWaiter = new Object(); |
| final int mTimeout; |
| boolean mCanceled = false; |
| |
| public WatchDogThread(String threadName, int timeout) { |
| super(threadName); |
| mTimeout = timeout; |
| } |
| |
| @Override |
| public void run() { |
| try { |
| synchronized (mCancelWaiter) { |
| mCancelWaiter.wait(mTimeout); |
| if (mCanceled) { |
| return; |
| } |
| } |
| } catch (InterruptedException e) { |
| // Should not happen; fall-through to abort. |
| Log.w(TAG, "Watchdog thread interruped."); |
| interrupt(); |
| } |
| Log.e(TAG, "Watchdog triggered, aborting."); |
| mDeviceHost.doAbort(); |
| } |
| |
| public synchronized void cancel() { |
| synchronized (mCancelWaiter) { |
| mCanceled = true; |
| mCancelWaiter.notify(); |
| } |
| } |
| } |
| |
| static byte[] hexStringToBytes(String s) { |
| if (s == null || s.length() == 0) return null; |
| int len = s.length(); |
| if (len % 2 != 0) { |
| s = '0' + s; |
| len++; |
| } |
| byte[] data = new byte[len / 2]; |
| for (int i = 0; i < len; i += 2) { |
| data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4) |
| + Character.digit(s.charAt(i + 1), 16)); |
| } |
| return data; |
| } |
| |
| /** |
| * Read mScreenState and apply NFC-C polling and NFC-EE routing |
| */ |
| void applyRouting(boolean force) { |
| synchronized (this) { |
| if (!isNfcEnabledOrShuttingDown()) { |
| return; |
| } |
| WatchDogThread watchDog = new WatchDogThread("applyRouting", ROUTING_WATCHDOG_MS); |
| if (mInProvisionMode) { |
| mInProvisionMode = Settings.Secure.getInt(mContentResolver, |
| Settings.Global.DEVICE_PROVISIONED, 0) == 0; |
| if (!mInProvisionMode) { |
| // Notify dispatcher it's fine to dispatch to any package now |
| // and allow handover transfers. |
| mNfcDispatcher.disableProvisioningMode(); |
| } |
| } |
| // Special case: if we're transitioning to unlocked state while |
| // still talking to a tag, postpone re-configuration. |
| if (mScreenState == ScreenStateHelper.SCREEN_STATE_ON_UNLOCKED && isTagPresent()) { |
| Log.d(TAG, "Not updating discovery parameters, tag connected."); |
| mHandler.sendMessageDelayed(mHandler.obtainMessage(MSG_RESUME_POLLING), |
| APPLY_ROUTING_RETRY_TIMEOUT_MS); |
| return; |
| } |
| |
| try { |
| watchDog.start(); |
| // Compute new polling parameters |
| NfcDiscoveryParameters newParams = computeDiscoveryParameters(mScreenState); |
| if (force || !newParams.equals(mCurrentDiscoveryParameters)) { |
| if (newParams.shouldEnableDiscovery()) { |
| boolean shouldRestart = mCurrentDiscoveryParameters.shouldEnableDiscovery(); |
| mDeviceHost.enableDiscovery(newParams, shouldRestart); |
| } else { |
| mDeviceHost.disableDiscovery(); |
| } |
| mCurrentDiscoveryParameters = newParams; |
| } else { |
| Log.d(TAG, "Discovery configuration equal, not updating."); |
| } |
| } finally { |
| watchDog.cancel(); |
| } |
| } |
| } |
| |
| private NfcDiscoveryParameters computeDiscoveryParameters(int screenState) { |
| // Recompute discovery parameters based on screen state |
| NfcDiscoveryParameters.Builder paramsBuilder = NfcDiscoveryParameters.newBuilder(); |
| // Polling |
| if (screenState >= NFC_POLLING_MODE) { |
| // Check if reader-mode is enabled |
| if (mReaderModeParams != null) { |
| int techMask = 0; |
| if ((mReaderModeParams.flags & NfcAdapter.FLAG_READER_NFC_A) != 0) |
| techMask |= NFC_POLL_A; |
| if ((mReaderModeParams.flags & NfcAdapter.FLAG_READER_NFC_B) != 0) |
| techMask |= NFC_POLL_B; |
| if ((mReaderModeParams.flags & NfcAdapter.FLAG_READER_NFC_F) != 0) |
| techMask |= NFC_POLL_F; |
| if ((mReaderModeParams.flags & NfcAdapter.FLAG_READER_NFC_V) != 0) |
| techMask |= NFC_POLL_ISO15693; |
| if ((mReaderModeParams.flags & NfcAdapter.FLAG_READER_NFC_BARCODE) != 0) |
| techMask |= NFC_POLL_KOVIO; |
| |
| paramsBuilder.setTechMask(techMask); |
| paramsBuilder.setEnableReaderMode(true); |
| } else { |
| paramsBuilder.setTechMask(NfcDiscoveryParameters.NFC_POLL_DEFAULT); |
| paramsBuilder.setEnableP2p(mIsNdefPushEnabled); |
| } |
| } else if (screenState == ScreenStateHelper.SCREEN_STATE_ON_LOCKED && mInProvisionMode) { |
| paramsBuilder.setTechMask(NfcDiscoveryParameters.NFC_POLL_DEFAULT); |
| // enable P2P for MFM/EDU/Corp provisioning |
| paramsBuilder.setEnableP2p(true); |
| } else if (screenState == ScreenStateHelper.SCREEN_STATE_ON_LOCKED && |
| mNfcUnlockManager.isLockscreenPollingEnabled()) { |
| // For lock-screen tags, no low-power polling |
| paramsBuilder.setTechMask(mNfcUnlockManager.getLockscreenPollMask()); |
| paramsBuilder.setEnableLowPowerDiscovery(false); |
| paramsBuilder.setEnableP2p(false); |
| } |
| |
| if (mIsHceCapable && mScreenState >= ScreenStateHelper.SCREEN_STATE_ON_LOCKED) { |
| // Host routing is always enabled at lock screen or later |
| paramsBuilder.setEnableHostRouting(true); |
| } |
| |
| return paramsBuilder.build(); |
| } |
| |
| private boolean isTagPresent() { |
| for (Object object : mObjectMap.values()) { |
| if (object instanceof TagEndpoint) { |
| return ((TagEndpoint) object).isPresent(); |
| } |
| } |
| return false; |
| } |
| /** |
| * Disconnect any target if present |
| */ |
| void maybeDisconnectTarget() { |
| if (!isNfcEnabledOrShuttingDown()) { |
| return; |
| } |
| Object[] objectsToDisconnect; |
| synchronized (this) { |
| Object[] objectValues = mObjectMap.values().toArray(); |
| // Copy the array before we clear mObjectMap, |
| // just in case the HashMap values are backed by the same array |
| objectsToDisconnect = Arrays.copyOf(objectValues, objectValues.length); |
| mObjectMap.clear(); |
| } |
| for (Object o : objectsToDisconnect) { |
| if (DBG) Log.d(TAG, "disconnecting " + o.getClass().getName()); |
| if (o instanceof TagEndpoint) { |
| // Disconnect from tags |
| TagEndpoint tag = (TagEndpoint) o; |
| tag.disconnect(); |
| } else if (o instanceof NfcDepEndpoint) { |
| // Disconnect from P2P devices |
| NfcDepEndpoint device = (NfcDepEndpoint) o; |
| if (device.getMode() == NfcDepEndpoint.MODE_P2P_TARGET) { |
| // Remote peer is target, request disconnection |
| device.disconnect(); |
| } else { |
| // Remote peer is initiator, we cannot disconnect |
| // Just wait for field removal |
| } |
| } |
| } |
| } |
| |
| Object findObject(int key) { |
| synchronized (this) { |
| Object device = mObjectMap.get(key); |
| if (device == null) { |
| Log.w(TAG, "Handle not found"); |
| } |
| return device; |
| } |
| } |
| |
| void registerTagObject(TagEndpoint tag) { |
| synchronized (this) { |
| mObjectMap.put(tag.getHandle(), tag); |
| } |
| } |
| |
| void unregisterObject(int handle) { |
| synchronized (this) { |
| mObjectMap.remove(handle); |
| } |
| } |
| |
| /** |
| * For use by code in this process |
| */ |
| public LlcpSocket createLlcpSocket(int sap, int miu, int rw, int linearBufferLength) |
| throws LlcpException { |
| return mDeviceHost.createLlcpSocket(sap, miu, rw, linearBufferLength); |
| } |
| |
| /** |
| * For use by code in this process |
| */ |
| public LlcpConnectionlessSocket createLlcpConnectionLessSocket(int sap, String sn) |
| throws LlcpException { |
| return mDeviceHost.createLlcpConnectionlessSocket(sap, sn); |
| } |
| |
| /** |
| * For use by code in this process |
| */ |
| public LlcpServerSocket createLlcpServerSocket(int sap, String sn, int miu, int rw, |
| int linearBufferLength) throws LlcpException { |
| return mDeviceHost.createLlcpServerSocket(sap, sn, miu, rw, linearBufferLength); |
| } |
| |
| public void sendMockNdefTag(NdefMessage msg) { |
| sendMessage(MSG_MOCK_NDEF, msg); |
| } |
| |
| public void routeAids(String aid, int route) { |
| Message msg = mHandler.obtainMessage(); |
| msg.what = MSG_ROUTE_AID; |
| msg.arg1 = route; |
| msg.obj = aid; |
| mHandler.sendMessage(msg); |
| } |
| |
| public void unrouteAids(String aid) { |
| sendMessage(MSG_UNROUTE_AID, aid); |
| } |
| |
| public void commitRouting() { |
| mHandler.sendEmptyMessage(MSG_COMMIT_ROUTING); |
| } |
| |
| public boolean sendData(byte[] data) { |
| return mDeviceHost.sendRawFrame(data); |
| } |
| |
| void sendMessage(int what, Object obj) { |
| Message msg = mHandler.obtainMessage(); |
| msg.what = what; |
| msg.obj = obj; |
| mHandler.sendMessage(msg); |
| } |
| |
| final class NfcServiceHandler extends Handler { |
| @Override |
| public void handleMessage(Message msg) { |
| switch (msg.what) { |
| case MSG_ROUTE_AID: { |
| int route = msg.arg1; |
| String aid = (String) msg.obj; |
| mDeviceHost.routeAid(hexStringToBytes(aid), route); |
| // Restart polling config |
| break; |
| } |
| case MSG_UNROUTE_AID: { |
| String aid = (String) msg.obj; |
| mDeviceHost.unrouteAid(hexStringToBytes(aid)); |
| break; |
| } |
| case MSG_INVOKE_BEAM: { |
| mP2pLinkManager.onManualBeamInvoke((BeamShareData)msg.obj); |
| break; |
| } |
| case MSG_COMMIT_ROUTING: { |
| boolean commit = false; |
| synchronized (NfcService.this) { |
| if (mCurrentDiscoveryParameters.shouldEnableDiscovery()) { |
| commit = true; |
| } else { |
| Log.d(TAG, "Not committing routing because discovery is disabled."); |
| } |
| } |
| if (commit) { |
| mDeviceHost.commitRouting(); |
| } |
| break; |
| } |
| case MSG_MOCK_NDEF: { |
| NdefMessage ndefMsg = (NdefMessage) msg.obj; |
| Bundle extras = new Bundle(); |
| extras.putParcelable(Ndef.EXTRA_NDEF_MSG, ndefMsg); |
| extras.putInt(Ndef.EXTRA_NDEF_MAXLENGTH, 0); |
| extras.putInt(Ndef.EXTRA_NDEF_CARDSTATE, Ndef.NDEF_MODE_READ_ONLY); |
| extras.putInt(Ndef.EXTRA_NDEF_TYPE, Ndef.TYPE_OTHER); |
| Tag tag = Tag.createMockTag(new byte[]{0x00}, |
| new int[]{TagTechnology.NDEF}, |
| new Bundle[]{extras}); |
| Log.d(TAG, "mock NDEF tag, starting corresponding activity"); |
| Log.d(TAG, tag.toString()); |
| int dispatchStatus = mNfcDispatcher.dispatchTag(tag); |
| if (dispatchStatus == NfcDispatcher.DISPATCH_SUCCESS) { |
| playSound(SOUND_END); |
| } else if (dispatchStatus == NfcDispatcher.DISPATCH_FAIL) { |
| playSound(SOUND_ERROR); |
| } |
| break; |
| } |
| |
| case MSG_NDEF_TAG: |
| if (DBG) Log.d(TAG, "Tag detected, notifying applications"); |
| TagEndpoint tag = (TagEndpoint) msg.obj; |
| ReaderModeParams readerParams = null; |
| int presenceCheckDelay = DEFAULT_PRESENCE_CHECK_DELAY; |
| DeviceHost.TagDisconnectedCallback callback = |
| new DeviceHost.TagDisconnectedCallback() { |
| @Override |
| public void onTagDisconnected(long handle) { |
| applyRouting(false); |
| } |
| }; |
| synchronized (NfcService.this) { |
| readerParams = mReaderModeParams; |
| } |
| if (readerParams != null) { |
| presenceCheckDelay = readerParams.presenceCheckDelay; |
| if ((readerParams.flags & NfcAdapter.FLAG_READER_SKIP_NDEF_CHECK) != 0) { |
| if (DBG) Log.d(TAG, "Skipping NDEF detection in reader mode"); |
| tag.startPresenceChecking(presenceCheckDelay, callback); |
| dispatchTagEndpoint(tag, readerParams); |
| break; |
| } |
| } |
| |
| boolean playSound = readerParams == null || |
| (readerParams.flags & NfcAdapter.FLAG_READER_NO_PLATFORM_SOUNDS) == 0; |
| if (mScreenState == ScreenStateHelper.SCREEN_STATE_ON_UNLOCKED && playSound) { |
| playSound(SOUND_START); |
| } |
| if (tag.getConnectedTechnology() == TagTechnology.NFC_BARCODE) { |
| // When these tags start containing NDEF, they will require |
| // the stack to deal with them in a different way, since |
| // they are activated only really shortly. |
| // For now, don't consider NDEF on these. |
| if (DBG) Log.d(TAG, "Skipping NDEF detection for NFC Barcode"); |
| tag.startPresenceChecking(presenceCheckDelay, callback); |
| dispatchTagEndpoint(tag, readerParams); |
| break; |
| } |
| NdefMessage ndefMsg = tag.findAndReadNdef(); |
| |
| if (ndefMsg != null) { |
| tag.startPresenceChecking(presenceCheckDelay, callback); |
| dispatchTagEndpoint(tag, readerParams); |
| } else { |
| if (tag.reconnect()) { |
| tag.startPresenceChecking(presenceCheckDelay, callback); |
| dispatchTagEndpoint(tag, readerParams); |
| } else { |
| tag.disconnect(); |
| playSound(SOUND_ERROR); |
| } |
| } |
| break; |
| case MSG_LLCP_LINK_ACTIVATION: |
| if (mIsDebugBuild) { |
| Intent actIntent = new Intent(ACTION_LLCP_UP); |
| mContext.sendBroadcast(actIntent); |
| } |
| llcpActivated((NfcDepEndpoint) msg.obj); |
| break; |
| |
| case MSG_LLCP_LINK_DEACTIVATED: |
| if (mIsDebugBuild) { |
| Intent deactIntent = new Intent(ACTION_LLCP_DOWN); |
| mContext.sendBroadcast(deactIntent); |
| } |
| NfcDepEndpoint device = (NfcDepEndpoint) msg.obj; |
| boolean needsDisconnect = false; |
| |
| Log.d(TAG, "LLCP Link Deactivated message. Restart polling loop."); |
| synchronized (NfcService.this) { |
| /* Check if the device has been already unregistered */ |
| if (mObjectMap.remove(device.getHandle()) != null) { |
| /* Disconnect if we are initiator */ |
| if (device.getMode() == NfcDepEndpoint.MODE_P2P_TARGET) { |
| if (DBG) Log.d(TAG, "disconnecting from target"); |
| needsDisconnect = true; |
| } else { |
| if (DBG) Log.d(TAG, "not disconnecting from initiator"); |
| } |
| } |
| } |
| if (needsDisconnect) { |
| device.disconnect(); // restarts polling loop |
| } |
| |
| mP2pLinkManager.onLlcpDeactivated(); |
| break; |
| case MSG_LLCP_LINK_FIRST_PACKET: |
| mP2pLinkManager.onLlcpFirstPacketReceived(); |
| break; |
| case MSG_RF_FIELD_ACTIVATED: |
| Intent fieldOnIntent = new Intent(ACTION_RF_FIELD_ON_DETECTED); |
| sendNfcEeAccessProtectedBroadcast(fieldOnIntent); |
| break; |
| case MSG_RF_FIELD_DEACTIVATED: |
| Intent fieldOffIntent = new Intent(ACTION_RF_FIELD_OFF_DETECTED); |
| sendNfcEeAccessProtectedBroadcast(fieldOffIntent); |
| break; |
| case MSG_RESUME_POLLING: |
| mNfcAdapter.resumePolling(); |
| break; |
| default: |
| Log.e(TAG, "Unknown message received"); |
| break; |
| } |
| } |
| |
| private void sendNfcEeAccessProtectedBroadcast(Intent intent) { |
| intent.addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES); |
| // Resume app switches so the receivers can start activites without delay |
| mNfcDispatcher.resumeAppSwitches(); |
| ArrayList<String> matchingPackages = new ArrayList<String>(); |
| ArrayList<String> preferredPackages = new ArrayList<String>(); |
| synchronized (this) { |
| for (PackageInfo pkg : mInstalledPackages) { |
| if (pkg != null && pkg.applicationInfo != null) { |
| if (mNfceeAccessControl.check(pkg.applicationInfo)) { |
| matchingPackages.add(pkg.packageName); |
| if (mCardEmulationManager != null && |
| mCardEmulationManager.packageHasPreferredService(pkg.packageName)) { |
| preferredPackages.add(pkg.packageName); |
| } |
| } |
| } |
| } |
| if (preferredPackages.size() > 0) { |
| // If there's any packages in here which are preferred, only |
| // send field events to those packages, to prevent other apps |
| // with signatures in nfcee_access.xml from acting upon the events. |
| for (String packageName : preferredPackages){ |
| intent.setPackage(packageName); |
| mContext.sendBroadcast(intent); |
| } |
| } else { |
| for (String packageName : matchingPackages){ |
| intent.setPackage(packageName); |
| mContext.sendBroadcast(intent); |
| } |
| } |
| } |
| } |
| |
| private boolean llcpActivated(NfcDepEndpoint device) { |
| Log.d(TAG, "LLCP Activation message"); |
| |
| if (device.getMode() == NfcDepEndpoint.MODE_P2P_TARGET) { |
| if (DBG) Log.d(TAG, "NativeP2pDevice.MODE_P2P_TARGET"); |
| if (device.connect()) { |
| /* Check LLCP compliancy */ |
| if (mDeviceHost.doCheckLlcp()) { |
| /* Activate LLCP Link */ |
| if (mDeviceHost.doActivateLlcp()) { |
| if (DBG) Log.d(TAG, "Initiator Activate LLCP OK"); |
| synchronized (NfcService.this) { |
| // Register P2P device |
| mObjectMap.put(device.getHandle(), device); |
| } |
| mP2pLinkManager.onLlcpActivated(device.getLlcpVersion()); |
| return true; |
| } else { |
| /* should not happen */ |
| Log.w(TAG, "Initiator LLCP activation failed. Disconnect."); |
| device.disconnect(); |
| } |
| } else { |
| if (DBG) Log.d(TAG, "Remote Target does not support LLCP. Disconnect."); |
| device.disconnect(); |
| } |
| } else { |
| if (DBG) Log.d(TAG, "Cannot connect remote Target. Polling loop restarted."); |
| /* |
| * The polling loop should have been restarted in failing |
| * doConnect |
| */ |
| } |
| } else if (device.getMode() == NfcDepEndpoint.MODE_P2P_INITIATOR) { |
| if (DBG) Log.d(TAG, "NativeP2pDevice.MODE_P2P_INITIATOR"); |
| /* Check LLCP compliancy */ |
| if (mDeviceHost.doCheckLlcp()) { |
| /* Activate LLCP Link */ |
| if (mDeviceHost.doActivateLlcp()) { |
| if (DBG) Log.d(TAG, "Target Activate LLCP OK"); |
| synchronized (NfcService.this) { |
| // Register P2P device |
| mObjectMap.put(device.getHandle(), device); |
| } |
| mP2pLinkManager.onLlcpActivated(device.getLlcpVersion()); |
| return true; |
| } |
| } else { |
| Log.w(TAG, "checkLlcp failed"); |
| } |
| } |
| |
| return false; |
| } |
| |
| private void dispatchTagEndpoint(TagEndpoint tagEndpoint, ReaderModeParams readerParams) { |
| Tag tag = new Tag(tagEndpoint.getUid(), tagEndpoint.getTechList(), |
| tagEndpoint.getTechExtras(), tagEndpoint.getHandle(), mNfcTagService); |
| registerTagObject(tagEndpoint); |
| if (readerParams != null) { |
| try { |
| if ((readerParams.flags & NfcAdapter.FLAG_READER_NO_PLATFORM_SOUNDS) == 0) { |
| playSound(SOUND_END); |
| } |
| if (readerParams.callback != null) { |
| readerParams.callback.onTagDiscovered(tag); |
| return; |
| } else { |
| // Follow normal dispatch below |
| } |
| } catch (RemoteException e) { |
| Log.e(TAG, "Reader mode remote has died, falling back.", e); |
| // Intentional fall-through |
| } catch (Exception e) { |
| // Catch any other exception |
| Log.e(TAG, "App exception, not dispatching.", e); |
| return; |
| } |
| } |
| int dispatchResult = mNfcDispatcher.dispatchTag(tag); |
| if (dispatchResult == NfcDispatcher.DISPATCH_FAIL) { |
| unregisterObject(tagEndpoint.getHandle()); |
| playSound(SOUND_ERROR); |
| } else if (dispatchResult == NfcDispatcher.DISPATCH_SUCCESS) { |
| playSound(SOUND_END); |
| } |
| } |
| } |
| |
| private NfcServiceHandler mHandler = new NfcServiceHandler(); |
| |
| class ApplyRoutingTask extends AsyncTask<Integer, Void, Void> { |
| @Override |
| protected Void doInBackground(Integer... params) { |
| synchronized (NfcService.this) { |
| if (params == null || params.length != 1) { |
| // force apply current routing |
| applyRouting(true); |
| return null; |
| } |
| mScreenState = params[0].intValue(); |
| |
| mRoutingWakeLock.acquire(); |
| try { |
| applyRouting(false); |
| } finally { |
| mRoutingWakeLock.release(); |
| } |
| return null; |
| } |
| } |
| } |
| |
| private final BroadcastReceiver mReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| String action = intent.getAction(); |
| if (action.equals(Intent.ACTION_SCREEN_ON) |
| || action.equals(Intent.ACTION_SCREEN_OFF) |
| || action.equals(Intent.ACTION_USER_PRESENT)) { |
| // Perform applyRouting() in AsyncTask to serialize blocking calls |
| int screenState = ScreenStateHelper.SCREEN_STATE_OFF; |
| if (action.equals(Intent.ACTION_SCREEN_OFF)) { |
| screenState = ScreenStateHelper.SCREEN_STATE_OFF; |
| } else if (action.equals(Intent.ACTION_SCREEN_ON)) { |
| screenState = mKeyguard.isKeyguardLocked() |
| ? ScreenStateHelper.SCREEN_STATE_ON_LOCKED |
| : ScreenStateHelper.SCREEN_STATE_ON_UNLOCKED; |
| } else if (action.equals(Intent.ACTION_USER_PRESENT)) { |
| screenState = ScreenStateHelper.SCREEN_STATE_ON_UNLOCKED; |
| } |
| |
| new ApplyRoutingTask().execute(Integer.valueOf(screenState)); |
| } else if (action.equals(Intent.ACTION_AIRPLANE_MODE_CHANGED)) { |
| boolean isAirplaneModeOn = intent.getBooleanExtra("state", false); |
| // Query the airplane mode from Settings.System just to make sure that |
| // some random app is not sending this intent |
| if (isAirplaneModeOn != isAirplaneModeOn()) { |
| return; |
| } |
| if (!mIsAirplaneSensitive) { |
| return; |
| } |
| mPrefsEditor.putBoolean(PREF_AIRPLANE_OVERRIDE, false); |
| mPrefsEditor.apply(); |
| if (isAirplaneModeOn) { |
| new EnableDisableTask().execute(TASK_DISABLE); |
| } else if (!isAirplaneModeOn && mPrefs.getBoolean(PREF_NFC_ON, NFC_ON_DEFAULT)) { |
| new EnableDisableTask().execute(TASK_ENABLE); |
| } |
| } else if (action.equals(Intent.ACTION_USER_SWITCHED)) { |
| int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0); |
| synchronized (this) { |
| mUserId = userId; |
| } |
| mP2pLinkManager.onUserSwitched(getUserId()); |
| if (mIsHceCapable) { |
| mCardEmulationManager.onUserSwitched(getUserId()); |
| } |
| } |
| } |
| }; |
| |
| |
| private final BroadcastReceiver mOwnerReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| String action = intent.getAction(); |
| if (action.equals(Intent.ACTION_PACKAGE_REMOVED) || |
| action.equals(Intent.ACTION_PACKAGE_ADDED) || |
| action.equals(Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE) || |
| action.equals(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE)) { |
| updatePackageCache(); |
| |
| if (action.equals(Intent.ACTION_PACKAGE_REMOVED)) { |
| // Clear the NFCEE access cache in case a UID gets recycled |
| mNfceeAccessControl.invalidateCache(); |
| } |
| } |
| } |
| }; |
| |
| private final BroadcastReceiver mPolicyReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent){ |
| String action = intent.getAction(); |
| if (DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED |
| .equals(action)) { |
| enforceBeamShareActivityPolicy(context, |
| new UserHandle(getSendingUserId()), mIsNdefPushEnabled); |
| } |
| } |
| }; |
| |
| /** |
| * Returns true if airplane mode is currently on |
| */ |
| boolean isAirplaneModeOn() { |
| return Settings.System.getInt(mContentResolver, |
| Settings.Global.AIRPLANE_MODE_ON, 0) == 1; |
| } |
| |
| /** |
| * for debugging only - no i18n |
| */ |
| static String stateToString(int state) { |
| switch (state) { |
| case NfcAdapter.STATE_OFF: |
| return "off"; |
| case NfcAdapter.STATE_TURNING_ON: |
| return "turning on"; |
| case NfcAdapter.STATE_ON: |
| return "on"; |
| case NfcAdapter.STATE_TURNING_OFF: |
| return "turning off"; |
| default: |
| return "<error>"; |
| } |
| } |
| |
| void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) |
| != PackageManager.PERMISSION_GRANTED) { |
| pw.println("Permission Denial: can't dump nfc from from pid=" |
| + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid() |
| + " without permission " + android.Manifest.permission.DUMP); |
| return; |
| } |
| |
| synchronized (this) { |
| pw.println("mState=" + stateToString(mState)); |
| pw.println("mIsZeroClickRequested=" + mIsNdefPushEnabled); |
| pw.println("mScreenState=" + ScreenStateHelper.screenStateToString(mScreenState)); |
| pw.println("mIsAirplaneSensitive=" + mIsAirplaneSensitive); |
| pw.println("mIsAirplaneToggleable=" + mIsAirplaneToggleable); |
| pw.println(mCurrentDiscoveryParameters); |
| mP2pLinkManager.dump(fd, pw, args); |
| if (mIsHceCapable) { |
| mCardEmulationManager.dump(fd, pw, args); |
| } |
| mNfcDispatcher.dump(fd, pw, args); |
| pw.println(mDeviceHost.dump()); |
| } |
| } |
| } |
