| /* |
| * Copyright (C) 2007 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 static com.android.internal.util.XmlUtils.readIntAttribute; |
| import static com.android.internal.util.XmlUtils.readStringAttribute; |
| import static com.android.internal.util.XmlUtils.writeIntAttribute; |
| import static com.android.internal.util.XmlUtils.writeStringAttribute; |
| import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; |
| import static org.xmlpull.v1.XmlPullParser.START_TAG; |
| |
| import android.Manifest; |
| import android.app.ActivityManagerNative; |
| import android.app.AppOpsManager; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.ServiceConnection; |
| import android.content.res.Configuration; |
| import android.content.res.ObbInfo; |
| import android.mtp.MtpStorage; |
| import android.net.Uri; |
| import android.os.Binder; |
| import android.os.Environment; |
| import android.os.Environment.UserEnvironment; |
| import android.os.FileUtils; |
| import android.os.Handler; |
| import android.os.HandlerThread; |
| import android.os.IBinder; |
| import android.os.Looper; |
| import android.os.Message; |
| import android.os.RemoteCallbackList; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.os.SystemClock; |
| import android.os.SystemProperties; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.os.storage.DiskInfo; |
| import android.os.storage.IMountService; |
| import android.os.storage.IMountServiceListener; |
| import android.os.storage.IMountShutdownObserver; |
| import android.os.storage.IObbActionListener; |
| import android.os.storage.OnObbStateChangeListener; |
| import android.os.storage.StorageManager; |
| import android.os.storage.StorageResultCode; |
| import android.os.storage.StorageVolume; |
| import android.os.storage.VolumeInfo; |
| import android.text.TextUtils; |
| import android.text.format.DateUtils; |
| import android.util.ArrayMap; |
| import android.util.AtomicFile; |
| import android.util.DebugUtils; |
| import android.util.Log; |
| import android.util.Slog; |
| import android.util.Xml; |
| |
| import libcore.io.IoUtils; |
| import libcore.util.EmptyArray; |
| import libcore.util.HexEncoding; |
| |
| import com.android.internal.annotations.GuardedBy; |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.app.IMediaContainerService; |
| import com.android.internal.os.SomeArgs; |
| import com.android.internal.util.ArrayUtils; |
| import com.android.internal.util.FastXmlSerializer; |
| import com.android.internal.util.IndentingPrintWriter; |
| import com.android.internal.util.Preconditions; |
| import com.android.server.NativeDaemonConnector.Command; |
| import com.android.server.NativeDaemonConnector.SensitiveArg; |
| import com.android.server.pm.PackageManagerService; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| import org.xmlpull.v1.XmlSerializer; |
| |
| import java.io.File; |
| import java.io.FileDescriptor; |
| import java.io.FileInputStream; |
| import java.io.FileNotFoundException; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| import java.math.BigInteger; |
| import java.nio.charset.StandardCharsets; |
| import java.security.NoSuchAlgorithmException; |
| import java.security.spec.InvalidKeySpecException; |
| import java.security.spec.KeySpec; |
| import java.text.SimpleDateFormat; |
| import java.util.ArrayList; |
| import java.util.Date; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Locale; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| import java.util.Objects; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| |
| import javax.crypto.SecretKey; |
| import javax.crypto.SecretKeyFactory; |
| import javax.crypto.spec.PBEKeySpec; |
| |
| /** |
| * Service responsible for various storage media. Connects to {@code vold} to |
| * watch for and manage dynamically added storage, such as SD cards and USB mass |
| * storage. Also decides how storage should be presented to users on the device. |
| */ |
| class MountService extends IMountService.Stub |
| implements INativeDaemonConnectorCallbacks, Watchdog.Monitor { |
| |
| // TODO: finish enforcing UserManager.DISALLOW_MOUNT_PHYSICAL_MEDIA |
| |
| // Static direct instance pointer for the tightly-coupled idle service to use |
| static MountService sSelf = null; |
| |
| public static class Lifecycle extends SystemService { |
| private MountService mMountService; |
| |
| public Lifecycle(Context context) { |
| super(context); |
| } |
| |
| @Override |
| public void onStart() { |
| mMountService = new MountService(getContext()); |
| publishBinderService("mount", mMountService); |
| } |
| |
| @Override |
| public void onBootPhase(int phase) { |
| if (phase == SystemService.PHASE_ACTIVITY_MANAGER_READY) { |
| mMountService.systemReady(); |
| } |
| } |
| |
| @Override |
| public void onStartUser(int userHandle) { |
| mMountService.onStartUser(userHandle); |
| } |
| |
| @Override |
| public void onCleanupUser(int userHandle) { |
| mMountService.onCleanupUser(userHandle); |
| } |
| } |
| |
| private static final boolean LOCAL_LOGD = false; |
| private static final boolean DEBUG_EVENTS = false; |
| private static final boolean DEBUG_OBB = false; |
| |
| // Disable this since it messes up long-running cryptfs operations. |
| private static final boolean WATCHDOG_ENABLE = false; |
| |
| private static final String TAG = "MountService"; |
| |
| private static final String VOLD_TAG = "VoldConnector"; |
| |
| /** Maximum number of ASEC containers allowed to be mounted. */ |
| private static final int MAX_CONTAINERS = 250; |
| |
| /* |
| * Internal vold response code constants |
| */ |
| class VoldResponseCode { |
| /* |
| * 100 series - Requestion action was initiated; expect another reply |
| * before proceeding with a new command. |
| */ |
| public static final int VolumeListResult = 110; |
| public static final int AsecListResult = 111; |
| public static final int StorageUsersListResult = 112; |
| public static final int CryptfsGetfieldResult = 113; |
| |
| /* |
| * 200 series - Requestion action has been successfully completed. |
| */ |
| public static final int ShareStatusResult = 210; |
| public static final int AsecPathResult = 211; |
| public static final int ShareEnabledResult = 212; |
| |
| /* |
| * 400 series - Command was accepted, but the requested action |
| * did not take place. |
| */ |
| public static final int OpFailedNoMedia = 401; |
| public static final int OpFailedMediaBlank = 402; |
| public static final int OpFailedMediaCorrupt = 403; |
| public static final int OpFailedVolNotMounted = 404; |
| public static final int OpFailedStorageBusy = 405; |
| public static final int OpFailedStorageNotFound = 406; |
| |
| /* |
| * 600 series - Unsolicited broadcasts. |
| */ |
| public static final int DISK_CREATED = 640; |
| public static final int DISK_SIZE_CHANGED = 641; |
| public static final int DISK_LABEL_CHANGED = 642; |
| public static final int DISK_SCANNED = 643; |
| public static final int DISK_DESTROYED = 649; |
| |
| public static final int VOLUME_CREATED = 650; |
| public static final int VOLUME_STATE_CHANGED = 651; |
| public static final int VOLUME_FS_TYPE_CHANGED = 652; |
| public static final int VOLUME_FS_UUID_CHANGED = 653; |
| public static final int VOLUME_FS_LABEL_CHANGED = 654; |
| public static final int VOLUME_PATH_CHANGED = 655; |
| public static final int VOLUME_DESTROYED = 659; |
| |
| /* |
| * 700 series - fstrim |
| */ |
| public static final int FstrimCompleted = 700; |
| } |
| |
| private static final int VERSION_INIT = 1; |
| private static final int VERSION_ADD_PRIMARY = 2; |
| |
| private static final String TAG_VOLUMES = "volumes"; |
| private static final String ATTR_VERSION = "version"; |
| private static final String ATTR_PRIMARY_STORAGE_UUID = "primaryStorageUuid"; |
| private static final String TAG_VOLUME = "volume"; |
| private static final String ATTR_TYPE = "type"; |
| private static final String ATTR_FS_UUID = "fsUuid"; |
| private static final String ATTR_NICKNAME = "nickname"; |
| private static final String ATTR_USER_FLAGS = "userFlags"; |
| |
| private final AtomicFile mMetadataFile; |
| |
| private static class VolumeMetadata { |
| public final int type; |
| public final String fsUuid; |
| public String nickname; |
| public int userFlags; |
| |
| public VolumeMetadata(int type, String fsUuid) { |
| this.type = type; |
| this.fsUuid = Preconditions.checkNotNull(fsUuid); |
| } |
| |
| public static VolumeMetadata read(XmlPullParser in) throws IOException { |
| final int type = readIntAttribute(in, ATTR_TYPE); |
| final String fsUuid = readStringAttribute(in, ATTR_FS_UUID); |
| final VolumeMetadata meta = new VolumeMetadata(type, fsUuid); |
| meta.nickname = readStringAttribute(in, ATTR_NICKNAME); |
| meta.userFlags = readIntAttribute(in, ATTR_USER_FLAGS); |
| return meta; |
| } |
| |
| public static void write(XmlSerializer out, VolumeMetadata meta) throws IOException { |
| out.startTag(null, TAG_VOLUME); |
| writeIntAttribute(out, ATTR_TYPE, meta.type); |
| writeStringAttribute(out, ATTR_FS_UUID, meta.fsUuid); |
| writeStringAttribute(out, ATTR_NICKNAME, meta.nickname); |
| writeIntAttribute(out, ATTR_USER_FLAGS, meta.userFlags); |
| out.endTag(null, TAG_VOLUME); |
| } |
| |
| public void dump(IndentingPrintWriter pw) { |
| pw.println("VolumeMetadata:"); |
| pw.increaseIndent(); |
| pw.printPair("type", DebugUtils.valueToString(VolumeInfo.class, "TYPE_", type)); |
| pw.printPair("fsUuid", fsUuid); |
| pw.printPair("nickname", nickname); |
| pw.printPair("userFlags", |
| DebugUtils.flagsToString(VolumeInfo.class, "USER_FLAG_", userFlags)); |
| pw.decreaseIndent(); |
| pw.println(); |
| } |
| } |
| |
| /** |
| * <em>Never</em> hold the lock while performing downcalls into vold, since |
| * unsolicited events can suddenly appear to update data structures. |
| */ |
| private final Object mLock = new Object(); |
| |
| @GuardedBy("mLock") |
| private int[] mStartedUsers = EmptyArray.INT; |
| |
| /** Map from disk ID to disk */ |
| @GuardedBy("mLock") |
| private ArrayMap<String, DiskInfo> mDisks = new ArrayMap<>(); |
| /** Map from volume ID to disk */ |
| @GuardedBy("mLock") |
| private ArrayMap<String, VolumeInfo> mVolumes = new ArrayMap<>(); |
| |
| /** Map from UUID to metadata */ |
| @GuardedBy("mLock") |
| private ArrayMap<String, VolumeMetadata> mMetadata = new ArrayMap<>(); |
| @GuardedBy("mLock") |
| private String mPrimaryStorageUuid; |
| |
| /** Map from disk ID to latches */ |
| @GuardedBy("mLock") |
| private ArrayMap<String, CountDownLatch> mDiskScanLatches = new ArrayMap<>(); |
| |
| private DiskInfo findDiskById(String id) { |
| synchronized (mLock) { |
| final DiskInfo disk = mDisks.get(id); |
| if (disk != null) { |
| return disk; |
| } |
| } |
| throw new IllegalArgumentException("No disk found for ID " + id); |
| } |
| |
| private VolumeInfo findVolumeById(String id) { |
| synchronized (mLock) { |
| final VolumeInfo vol = mVolumes.get(id); |
| if (vol != null) { |
| return vol; |
| } |
| } |
| throw new IllegalArgumentException("No volume found for ID " + id); |
| } |
| |
| @Deprecated |
| private String findVolumeIdForPath(String path) { |
| synchronized (mLock) { |
| for (int i = 0; i < mVolumes.size(); i++) { |
| final VolumeInfo vol = mVolumes.valueAt(i); |
| if (vol.path != null && path.startsWith(vol.path)) { |
| return vol.id; |
| } |
| } |
| } |
| throw new IllegalArgumentException("No volume found for path " + path); |
| } |
| |
| private VolumeMetadata findOrCreateMetadataLocked(VolumeInfo vol) { |
| VolumeMetadata meta = mMetadata.get(vol.fsUuid); |
| if (meta == null) { |
| meta = new VolumeMetadata(vol.type, vol.fsUuid); |
| mMetadata.put(meta.fsUuid, meta); |
| } |
| return meta; |
| } |
| |
| private CountDownLatch findOrCreateDiskScanLatch(String diskId) { |
| synchronized (mLock) { |
| CountDownLatch latch = mDiskScanLatches.get(diskId); |
| if (latch == null) { |
| latch = new CountDownLatch(1); |
| mDiskScanLatches.put(diskId, latch); |
| } |
| return latch; |
| } |
| } |
| |
| private static int sNextMtpIndex = 1; |
| |
| private static int allocateMtpIndex(String volId) { |
| if (VolumeInfo.ID_EMULATED_INTERNAL.equals(volId)) { |
| return 0; |
| } else { |
| return sNextMtpIndex++; |
| } |
| } |
| |
| /** List of crypto types. |
| * These must match CRYPT_TYPE_XXX in cryptfs.h AND their |
| * corresponding commands in CommandListener.cpp */ |
| public static final String[] CRYPTO_TYPES |
| = { "password", "default", "pattern", "pin" }; |
| |
| private final Context mContext; |
| private final NativeDaemonConnector mConnector; |
| |
| private volatile boolean mSystemReady = false; |
| private volatile boolean mDaemonConnected = false; |
| |
| private PackageManagerService mPms; |
| |
| private final Callbacks mCallbacks; |
| |
| private final CountDownLatch mConnectedSignal = new CountDownLatch(1); |
| private final CountDownLatch mAsecsScanned = new CountDownLatch(1); |
| |
| private final Object mUnmountLock = new Object(); |
| @GuardedBy("mUnmountLock") |
| private CountDownLatch mUnmountSignal; |
| |
| /** |
| * Private hash of currently mounted secure containers. |
| * Used as a lock in methods to manipulate secure containers. |
| */ |
| final private HashSet<String> mAsecMountSet = new HashSet<String>(); |
| |
| /** |
| * The size of the crypto algorithm key in bits for OBB files. Currently |
| * Twofish is used which takes 128-bit keys. |
| */ |
| private static final int CRYPTO_ALGORITHM_KEY_SIZE = 128; |
| |
| /** |
| * The number of times to run SHA1 in the PBKDF2 function for OBB files. |
| * 1024 is reasonably secure and not too slow. |
| */ |
| private static final int PBKDF2_HASH_ROUNDS = 1024; |
| |
| /** |
| * Mounted OBB tracking information. Used to track the current state of all |
| * OBBs. |
| */ |
| final private Map<IBinder, List<ObbState>> mObbMounts = new HashMap<IBinder, List<ObbState>>(); |
| |
| /** Map from raw paths to {@link ObbState}. */ |
| final private Map<String, ObbState> mObbPathToStateMap = new HashMap<String, ObbState>(); |
| |
| class ObbState implements IBinder.DeathRecipient { |
| public ObbState(String rawPath, String canonicalPath, int callingUid, |
| IObbActionListener token, int nonce) { |
| this.rawPath = rawPath; |
| this.canonicalPath = canonicalPath.toString(); |
| |
| final int userId = UserHandle.getUserId(callingUid); |
| this.ownerPath = buildObbPath(canonicalPath, userId, false); |
| this.voldPath = buildObbPath(canonicalPath, userId, true); |
| |
| this.ownerGid = UserHandle.getSharedAppGid(callingUid); |
| this.token = token; |
| this.nonce = nonce; |
| } |
| |
| final String rawPath; |
| final String canonicalPath; |
| final String ownerPath; |
| final String voldPath; |
| |
| final int ownerGid; |
| |
| // Token of remote Binder caller |
| final IObbActionListener token; |
| |
| // Identifier to pass back to the token |
| final int nonce; |
| |
| public IBinder getBinder() { |
| return token.asBinder(); |
| } |
| |
| @Override |
| public void binderDied() { |
| ObbAction action = new UnmountObbAction(this, true); |
| mObbActionHandler.sendMessage(mObbActionHandler.obtainMessage(OBB_RUN_ACTION, action)); |
| } |
| |
| public void link() throws RemoteException { |
| getBinder().linkToDeath(this, 0); |
| } |
| |
| public void unlink() { |
| getBinder().unlinkToDeath(this, 0); |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder sb = new StringBuilder("ObbState{"); |
| sb.append("rawPath=").append(rawPath); |
| sb.append(",canonicalPath=").append(canonicalPath); |
| sb.append(",ownerPath=").append(ownerPath); |
| sb.append(",voldPath=").append(voldPath); |
| sb.append(",ownerGid=").append(ownerGid); |
| sb.append(",token=").append(token); |
| sb.append(",binder=").append(getBinder()); |
| sb.append('}'); |
| return sb.toString(); |
| } |
| } |
| |
| // OBB Action Handler |
| final private ObbActionHandler mObbActionHandler; |
| |
| // OBB action handler messages |
| private static final int OBB_RUN_ACTION = 1; |
| private static final int OBB_MCS_BOUND = 2; |
| private static final int OBB_MCS_UNBIND = 3; |
| private static final int OBB_MCS_RECONNECT = 4; |
| private static final int OBB_FLUSH_MOUNT_STATE = 5; |
| |
| /* |
| * Default Container Service information |
| */ |
| static final ComponentName DEFAULT_CONTAINER_COMPONENT = new ComponentName( |
| "com.android.defcontainer", "com.android.defcontainer.DefaultContainerService"); |
| |
| final private DefaultContainerConnection mDefContainerConn = new DefaultContainerConnection(); |
| |
| class DefaultContainerConnection implements ServiceConnection { |
| @Override |
| public void onServiceConnected(ComponentName name, IBinder service) { |
| if (DEBUG_OBB) |
| Slog.i(TAG, "onServiceConnected"); |
| IMediaContainerService imcs = IMediaContainerService.Stub.asInterface(service); |
| mObbActionHandler.sendMessage(mObbActionHandler.obtainMessage(OBB_MCS_BOUND, imcs)); |
| } |
| |
| @Override |
| public void onServiceDisconnected(ComponentName name) { |
| if (DEBUG_OBB) |
| Slog.i(TAG, "onServiceDisconnected"); |
| } |
| }; |
| |
| // Used in the ObbActionHandler |
| private IMediaContainerService mContainerService = null; |
| |
| // Last fstrim operation tracking |
| private static final String LAST_FSTRIM_FILE = "last-fstrim"; |
| private final File mLastMaintenanceFile; |
| private long mLastMaintenance; |
| |
| // Handler messages |
| private static final int H_SYSTEM_READY = 1; |
| private static final int H_DAEMON_CONNECTED = 2; |
| private static final int H_SHUTDOWN = 3; |
| private static final int H_FSTRIM = 4; |
| private static final int H_VOLUME_MOUNT = 5; |
| private static final int H_VOLUME_BROADCAST = 6; |
| |
| class MountServiceHandler extends Handler { |
| public MountServiceHandler(Looper looper) { |
| super(looper); |
| } |
| |
| @Override |
| public void handleMessage(Message msg) { |
| switch (msg.what) { |
| case H_SYSTEM_READY: { |
| handleSystemReady(); |
| break; |
| } |
| case H_DAEMON_CONNECTED: { |
| handleDaemonConnected(); |
| break; |
| } |
| case H_FSTRIM: { |
| if (!isReady()) { |
| Slog.i(TAG, "fstrim requested, but no daemon connection yet; trying again"); |
| sendMessageDelayed(obtainMessage(H_FSTRIM), DateUtils.SECOND_IN_MILLIS); |
| } |
| |
| Slog.i(TAG, "Running fstrim idle maintenance"); |
| |
| // Remember when we kicked it off |
| try { |
| mLastMaintenance = System.currentTimeMillis(); |
| mLastMaintenanceFile.setLastModified(mLastMaintenance); |
| } catch (Exception e) { |
| Slog.e(TAG, "Unable to record last fstrim!"); |
| } |
| |
| try { |
| // This method must be run on the main (handler) thread, |
| // so it is safe to directly call into vold. |
| mConnector.execute("fstrim", "dotrim"); |
| EventLogTags.writeFstrimStart(SystemClock.elapsedRealtime()); |
| } catch (NativeDaemonConnectorException ndce) { |
| Slog.e(TAG, "Failed to run fstrim!"); |
| } |
| |
| // invoke the completion callback, if any |
| Runnable callback = (Runnable) msg.obj; |
| if (callback != null) { |
| callback.run(); |
| } |
| break; |
| } |
| case H_SHUTDOWN: { |
| final IMountShutdownObserver obs = (IMountShutdownObserver) msg.obj; |
| boolean success = false; |
| try { |
| success = mConnector.execute("volume", "shutdown").isClassOk(); |
| } catch (NativeDaemonConnectorException ignored) { |
| } |
| if (obs != null) { |
| try { |
| obs.onShutDownComplete(success ? 0 : -1); |
| } catch (RemoteException ignored) { |
| } |
| } |
| break; |
| } |
| case H_VOLUME_MOUNT: { |
| final VolumeInfo vol = (VolumeInfo) msg.obj; |
| try { |
| mConnector.execute("volume", "mount", vol.id, vol.mountFlags, |
| vol.mountUserId); |
| } catch (NativeDaemonConnectorException ignored) { |
| } |
| break; |
| } |
| case H_VOLUME_BROADCAST: { |
| final StorageVolume userVol = (StorageVolume) msg.obj; |
| final String envState = userVol.getState(); |
| Slog.d(TAG, "Volume " + userVol.getId() + " broadcasting " + envState + " to " |
| + userVol.getOwner()); |
| |
| final String action = VolumeInfo.getBroadcastForEnvironment(envState); |
| if (action != null) { |
| final Intent intent = new Intent(action, |
| Uri.fromFile(userVol.getPathFile())); |
| intent.putExtra(StorageVolume.EXTRA_STORAGE_VOLUME, userVol); |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); |
| mContext.sendBroadcastAsUser(intent, userVol.getOwner()); |
| } |
| break; |
| } |
| } |
| } |
| } |
| |
| private final Handler mHandler; |
| |
| @Override |
| public void waitForAsecScan() { |
| waitForLatch(mAsecsScanned, "mAsecsScanned"); |
| } |
| |
| private void waitForReady() { |
| waitForLatch(mConnectedSignal, "mConnectedSignal"); |
| } |
| |
| private void waitForLatch(CountDownLatch latch, String condition) { |
| while (true) { |
| try { |
| if (latch.await(5000, TimeUnit.MILLISECONDS)) { |
| return; |
| } else { |
| Slog.w(TAG, "Thread " + Thread.currentThread().getName() |
| + " still waiting for " + condition + "..."); |
| } |
| } catch (InterruptedException e) { |
| Slog.w(TAG, "Interrupt while waiting for " + condition); |
| } |
| } |
| } |
| |
| private boolean isReady() { |
| try { |
| return mConnectedSignal.await(0, TimeUnit.MILLISECONDS); |
| } catch (InterruptedException e) { |
| return false; |
| } |
| } |
| |
| private void handleSystemReady() { |
| resetIfReadyAndConnected(); |
| |
| // Start scheduling nominally-daily fstrim operations |
| MountServiceIdler.scheduleIdlePass(mContext); |
| } |
| |
| private void resetIfReadyAndConnected() { |
| Slog.d(TAG, "Thinking about reset, mSystemReady=" + mSystemReady |
| + ", mDaemonConnected=" + mDaemonConnected); |
| if (mSystemReady && mDaemonConnected) { |
| mDisks.clear(); |
| mVolumes.clear(); |
| |
| // Create a stub volume that represents internal storage |
| final VolumeInfo internal = new VolumeInfo(VolumeInfo.ID_PRIVATE_INTERNAL, |
| VolumeInfo.TYPE_PRIVATE, null, 0); |
| internal.state = VolumeInfo.STATE_MOUNTED; |
| internal.path = Environment.getDataDirectory().getAbsolutePath(); |
| mVolumes.put(internal.id, internal); |
| |
| try { |
| mConnector.execute("volume", "reset"); |
| } catch (NativeDaemonConnectorException e) { |
| Slog.w(TAG, "Failed to reset vold", e); |
| } |
| } |
| } |
| |
| private void onStartUser(int userId) { |
| Slog.d(TAG, "onStartUser " + userId); |
| |
| // We purposefully block here to make sure that user-specific |
| // staging area is ready so it's ready for zygote-forked apps to |
| // bind mount against. |
| try { |
| mConnector.execute("volume", "start_user", userId); |
| } catch (NativeDaemonConnectorException ignored) { |
| } |
| |
| // Record user as started so newly mounted volumes kick off events |
| // correctly, then synthesize events for any already-mounted volumes. |
| synchronized (mVolumes) { |
| for (int i = 0; i < mVolumes.size(); i++) { |
| final VolumeInfo vol = mVolumes.valueAt(i); |
| if (vol.isVisibleToUser(userId) && vol.isMountedReadable()) { |
| final StorageVolume userVol = vol.buildStorageVolume(mContext, userId); |
| mHandler.obtainMessage(H_VOLUME_BROADCAST, userVol).sendToTarget(); |
| |
| final String envState = VolumeInfo.getEnvironmentForState(vol.getState()); |
| mCallbacks.notifyStorageStateChanged(userVol.getPath(), envState, envState); |
| } |
| } |
| mStartedUsers = ArrayUtils.appendInt(mStartedUsers, userId); |
| } |
| } |
| |
| private void onCleanupUser(int userId) { |
| Slog.d(TAG, "onCleanupUser " + userId); |
| |
| try { |
| mConnector.execute("volume", "cleanup_user", userId); |
| } catch (NativeDaemonConnectorException ignored) { |
| } |
| |
| synchronized (mVolumes) { |
| mStartedUsers = ArrayUtils.removeInt(mStartedUsers, userId); |
| } |
| } |
| |
| void runIdleMaintenance(Runnable callback) { |
| mHandler.sendMessage(mHandler.obtainMessage(H_FSTRIM, callback)); |
| } |
| |
| // Binder entry point for kicking off an immediate fstrim |
| @Override |
| public void runMaintenance() { |
| enforcePermission(android.Manifest.permission.MOUNT_UNMOUNT_FILESYSTEMS); |
| runIdleMaintenance(null); |
| } |
| |
| @Override |
| public long lastMaintenance() { |
| return mLastMaintenance; |
| } |
| |
| /** |
| * Callback from NativeDaemonConnector |
| */ |
| @Override |
| public void onDaemonConnected() { |
| mDaemonConnected = true; |
| mHandler.obtainMessage(H_DAEMON_CONNECTED).sendToTarget(); |
| } |
| |
| private void handleDaemonConnected() { |
| resetIfReadyAndConnected(); |
| |
| /* |
| * Now that we've done our initialization, release |
| * the hounds! |
| */ |
| mConnectedSignal.countDown(); |
| |
| // On an encrypted device we can't see system properties yet, so pull |
| // the system locale out of the mount service. |
| if ("".equals(SystemProperties.get("vold.encrypt_progress"))) { |
| copyLocaleFromMountService(); |
| } |
| |
| // Let package manager load internal ASECs. |
| mPms.scanAvailableAsecs(); |
| |
| // Notify people waiting for ASECs to be scanned that it's done. |
| mAsecsScanned.countDown(); |
| } |
| |
| private void copyLocaleFromMountService() { |
| String systemLocale; |
| try { |
| systemLocale = getField(StorageManager.SYSTEM_LOCALE_KEY); |
| } catch (RemoteException e) { |
| return; |
| } |
| if (TextUtils.isEmpty(systemLocale)) { |
| return; |
| } |
| |
| Slog.d(TAG, "Got locale " + systemLocale + " from mount service"); |
| Locale locale = Locale.forLanguageTag(systemLocale); |
| Configuration config = new Configuration(); |
| config.setLocale(locale); |
| try { |
| ActivityManagerNative.getDefault().updateConfiguration(config); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Error setting system locale from mount service", e); |
| } |
| |
| // Temporary workaround for http://b/17945169. |
| Slog.d(TAG, "Setting system properties to " + systemLocale + " from mount service"); |
| SystemProperties.set("persist.sys.locale", locale.toLanguageTag()); |
| } |
| |
| /** |
| * Callback from NativeDaemonConnector |
| */ |
| @Override |
| public boolean onCheckHoldWakeLock(int code) { |
| return false; |
| } |
| |
| /** |
| * Callback from NativeDaemonConnector |
| */ |
| @Override |
| public boolean onEvent(int code, String raw, String[] cooked) { |
| synchronized (mLock) { |
| return onEventLocked(code, raw, cooked); |
| } |
| } |
| |
| private boolean onEventLocked(int code, String raw, String[] cooked) { |
| switch (code) { |
| case VoldResponseCode.DISK_CREATED: { |
| if (cooked.length != 3) break; |
| final String id = cooked[1]; |
| int flags = Integer.parseInt(cooked[2]); |
| if (SystemProperties.getBoolean(StorageManager.PROP_FORCE_ADOPTABLE, false)) { |
| flags |= DiskInfo.FLAG_ADOPTABLE; |
| } |
| mDisks.put(id, new DiskInfo(id, flags)); |
| break; |
| } |
| case VoldResponseCode.DISK_SIZE_CHANGED: { |
| if (cooked.length != 3) break; |
| final DiskInfo disk = mDisks.get(cooked[1]); |
| if (disk != null) { |
| disk.size = Long.parseLong(cooked[2]); |
| } |
| break; |
| } |
| case VoldResponseCode.DISK_LABEL_CHANGED: { |
| final DiskInfo disk = mDisks.get(cooked[1]); |
| if (disk != null) { |
| final StringBuilder builder = new StringBuilder(); |
| for (int i = 2; i < cooked.length; i++) { |
| builder.append(cooked[i]).append(' '); |
| } |
| disk.label = builder.toString().trim(); |
| } |
| break; |
| } |
| case VoldResponseCode.DISK_SCANNED: { |
| if (cooked.length != 2) break; |
| final DiskInfo disk = mDisks.get(cooked[1]); |
| if (disk != null) { |
| onDiskScannedLocked(disk); |
| } |
| break; |
| } |
| case VoldResponseCode.DISK_DESTROYED: { |
| if (cooked.length != 2) break; |
| mDisks.remove(cooked[1]); |
| break; |
| } |
| |
| case VoldResponseCode.VOLUME_CREATED: { |
| final String id = cooked[1]; |
| final int type = Integer.parseInt(cooked[2]); |
| final String diskId = (cooked.length == 4) ? cooked[3] : null; |
| final DiskInfo disk = mDisks.get(diskId); |
| final int mtpIndex = allocateMtpIndex(id); |
| final VolumeInfo vol = new VolumeInfo(id, type, disk, mtpIndex); |
| mVolumes.put(id, vol); |
| onVolumeCreatedLocked(vol); |
| break; |
| } |
| case VoldResponseCode.VOLUME_STATE_CHANGED: { |
| if (cooked.length != 3) break; |
| final VolumeInfo vol = mVolumes.get(cooked[1]); |
| if (vol != null) { |
| final int oldState = vol.state; |
| final int newState = Integer.parseInt(cooked[2]); |
| vol.state = newState; |
| onVolumeStateChangedLocked(vol.clone(), oldState, newState); |
| } |
| break; |
| } |
| case VoldResponseCode.VOLUME_FS_TYPE_CHANGED: { |
| if (cooked.length != 3) break; |
| final VolumeInfo vol = mVolumes.get(cooked[1]); |
| if (vol != null) { |
| vol.fsType = cooked[2]; |
| } |
| mCallbacks.notifyVolumeMetadataChanged(vol.clone()); |
| break; |
| } |
| case VoldResponseCode.VOLUME_FS_UUID_CHANGED: { |
| if (cooked.length != 3) break; |
| final VolumeInfo vol = mVolumes.get(cooked[1]); |
| if (vol != null) { |
| vol.fsUuid = cooked[2]; |
| } |
| refreshMetadataLocked(); |
| mCallbacks.notifyVolumeMetadataChanged(vol.clone()); |
| break; |
| } |
| case VoldResponseCode.VOLUME_FS_LABEL_CHANGED: { |
| final VolumeInfo vol = mVolumes.get(cooked[1]); |
| if (vol != null) { |
| final StringBuilder builder = new StringBuilder(); |
| for (int i = 2; i < cooked.length; i++) { |
| builder.append(cooked[i]).append(' '); |
| } |
| vol.fsLabel = builder.toString().trim(); |
| } |
| mCallbacks.notifyVolumeMetadataChanged(vol.clone()); |
| break; |
| } |
| case VoldResponseCode.VOLUME_PATH_CHANGED: { |
| if (cooked.length != 3) break; |
| final VolumeInfo vol = mVolumes.get(cooked[1]); |
| if (vol != null) { |
| vol.path = cooked[2]; |
| } |
| break; |
| } |
| case VoldResponseCode.VOLUME_DESTROYED: { |
| if (cooked.length != 2) break; |
| mVolumes.remove(cooked[1]); |
| break; |
| } |
| |
| case VoldResponseCode.FstrimCompleted: { |
| EventLogTags.writeFstrimFinish(SystemClock.elapsedRealtime()); |
| break; |
| } |
| default: { |
| Slog.d(TAG, "Unhandled vold event " + code); |
| } |
| } |
| |
| return true; |
| } |
| |
| private void onDiskScannedLocked(DiskInfo disk) { |
| final Intent intent = new Intent(DiskInfo.ACTION_DISK_SCANNED); |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); |
| mContext.sendBroadcastAsUser(intent, UserHandle.ALL, |
| android.Manifest.permission.WRITE_MEDIA_STORAGE); |
| |
| final CountDownLatch latch = mDiskScanLatches.remove(disk.id); |
| if (latch != null) { |
| latch.countDown(); |
| } |
| |
| int volumeCount = 0; |
| for (int i = 0; i < mVolumes.size(); i++) { |
| final VolumeInfo vol = mVolumes.valueAt(i); |
| if (Objects.equals(disk.id, vol.getDiskId())) { |
| volumeCount++; |
| } |
| } |
| |
| mCallbacks.notifyDiskScanned(disk, volumeCount); |
| } |
| |
| private void onVolumeCreatedLocked(VolumeInfo vol) { |
| final boolean primaryPhysical = SystemProperties.getBoolean( |
| StorageManager.PROP_PRIMARY_PHYSICAL, false); |
| // TODO: enable switching to another emulated primary |
| if (VolumeInfo.ID_EMULATED_INTERNAL.equals(vol.id) && !primaryPhysical) { |
| vol.mountFlags |= VolumeInfo.MOUNT_FLAG_PRIMARY; |
| vol.mountFlags |= VolumeInfo.MOUNT_FLAG_VISIBLE; |
| mHandler.obtainMessage(H_VOLUME_MOUNT, vol).sendToTarget(); |
| |
| } else if (vol.type == VolumeInfo.TYPE_PUBLIC) { |
| if (primaryPhysical) { |
| vol.mountFlags |= VolumeInfo.MOUNT_FLAG_PRIMARY; |
| vol.mountFlags |= VolumeInfo.MOUNT_FLAG_VISIBLE; |
| } |
| |
| // Adoptable public disks are visible to apps, since they meet |
| // public API requirement of being in a stable location. |
| final DiskInfo disk = mDisks.get(vol.getDiskId()); |
| if (disk != null && disk.isAdoptable()) { |
| vol.mountFlags |= VolumeInfo.MOUNT_FLAG_VISIBLE; |
| } |
| |
| vol.mountUserId = UserHandle.USER_OWNER; |
| mHandler.obtainMessage(H_VOLUME_MOUNT, vol).sendToTarget(); |
| |
| } else if (vol.type == VolumeInfo.TYPE_PRIVATE) { |
| mHandler.obtainMessage(H_VOLUME_MOUNT, vol).sendToTarget(); |
| |
| } else { |
| Slog.d(TAG, "Skipping automatic mounting of " + vol); |
| } |
| } |
| |
| private boolean isBroadcastWorthy(VolumeInfo vol) { |
| switch (vol.getType()) { |
| case VolumeInfo.TYPE_PUBLIC: |
| case VolumeInfo.TYPE_EMULATED: |
| break; |
| default: |
| return false; |
| } |
| |
| switch (vol.getState()) { |
| case VolumeInfo.STATE_MOUNTED: |
| case VolumeInfo.STATE_MOUNTED_READ_ONLY: |
| case VolumeInfo.STATE_EJECTING: |
| case VolumeInfo.STATE_UNMOUNTED: |
| break; |
| default: |
| return false; |
| } |
| |
| return true; |
| } |
| |
| private void onVolumeStateChangedLocked(VolumeInfo vol, int oldState, int newState) { |
| mCallbacks.notifyVolumeStateChanged(vol, oldState, newState); |
| |
| if (isBroadcastWorthy(vol)) { |
| final Intent intent = new Intent(VolumeInfo.ACTION_VOLUME_STATE_CHANGED); |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); |
| mContext.sendBroadcastAsUser(intent, UserHandle.ALL, |
| android.Manifest.permission.WRITE_MEDIA_STORAGE); |
| } |
| |
| final String oldStateEnv = VolumeInfo.getEnvironmentForState(oldState); |
| final String newStateEnv = VolumeInfo.getEnvironmentForState(newState); |
| |
| if (!Objects.equals(oldStateEnv, newStateEnv)) { |
| // Kick state changed event towards all started users. Any users |
| // started after this point will trigger additional |
| // user-specific broadcasts. |
| for (int userId : mStartedUsers) { |
| if (vol.isVisibleToUser(userId)) { |
| final StorageVolume userVol = vol.buildStorageVolume(mContext, userId); |
| mHandler.obtainMessage(H_VOLUME_BROADCAST, userVol).sendToTarget(); |
| |
| mCallbacks.notifyStorageStateChanged(userVol.getPath(), oldStateEnv, |
| newStateEnv); |
| } |
| } |
| } |
| |
| if (vol.type == VolumeInfo.TYPE_PUBLIC && vol.state == VolumeInfo.STATE_EJECTING) { |
| // TODO: this should eventually be handled by new ObbVolume state changes |
| /* |
| * Some OBBs might have been unmounted when this volume was |
| * unmounted, so send a message to the handler to let it know to |
| * remove those from the list of mounted OBBS. |
| */ |
| mObbActionHandler.sendMessage(mObbActionHandler.obtainMessage( |
| OBB_FLUSH_MOUNT_STATE, vol.path)); |
| } |
| } |
| |
| /** |
| * Refresh latest metadata into any currently active {@link VolumeInfo}. |
| */ |
| private void refreshMetadataLocked() { |
| final int size = mVolumes.size(); |
| for (int i = 0; i < size; i++) { |
| final VolumeInfo vol = mVolumes.valueAt(i); |
| final VolumeMetadata meta = mMetadata.get(vol.fsUuid); |
| |
| if (meta != null) { |
| vol.nickname = meta.nickname; |
| vol.userFlags = meta.userFlags; |
| } else { |
| vol.nickname = null; |
| vol.userFlags = 0; |
| } |
| } |
| } |
| |
| private void enforcePermission(String perm) { |
| mContext.enforceCallingOrSelfPermission(perm, perm); |
| } |
| |
| private void enforceUserRestriction(String restriction) { |
| UserManager um = (UserManager) mContext.getSystemService(Context.USER_SERVICE); |
| if (um.hasUserRestriction(restriction, Binder.getCallingUserHandle())) { |
| throw new SecurityException("User has restriction " + restriction); |
| } |
| } |
| |
| /** |
| * Constructs a new MountService instance |
| * |
| * @param context Binder context for this service |
| */ |
| public MountService(Context context) { |
| sSelf = this; |
| |
| mContext = context; |
| mCallbacks = new Callbacks(FgThread.get().getLooper()); |
| |
| // XXX: This will go away soon in favor of IMountServiceObserver |
| mPms = (PackageManagerService) ServiceManager.getService("package"); |
| |
| HandlerThread hthread = new HandlerThread(TAG); |
| hthread.start(); |
| mHandler = new MountServiceHandler(hthread.getLooper()); |
| |
| // Add OBB Action Handler to MountService thread. |
| mObbActionHandler = new ObbActionHandler(IoThread.get().getLooper()); |
| |
| // Initialize the last-fstrim tracking if necessary |
| File dataDir = Environment.getDataDirectory(); |
| File systemDir = new File(dataDir, "system"); |
| mLastMaintenanceFile = new File(systemDir, LAST_FSTRIM_FILE); |
| if (!mLastMaintenanceFile.exists()) { |
| // Not setting mLastMaintenance here means that we will force an |
| // fstrim during reboot following the OTA that installs this code. |
| try { |
| (new FileOutputStream(mLastMaintenanceFile)).close(); |
| } catch (IOException e) { |
| Slog.e(TAG, "Unable to create fstrim record " + mLastMaintenanceFile.getPath()); |
| } |
| } else { |
| mLastMaintenance = mLastMaintenanceFile.lastModified(); |
| } |
| |
| mMetadataFile = new AtomicFile( |
| new File(Environment.getSystemSecureDirectory(), "storage.xml")); |
| |
| synchronized (mLock) { |
| readMetadataLocked(); |
| } |
| |
| /* |
| * Create the connection to vold with a maximum queue of twice the |
| * amount of containers we'd ever expect to have. This keeps an |
| * "asec list" from blocking a thread repeatedly. |
| */ |
| mConnector = new NativeDaemonConnector(this, "vold", MAX_CONTAINERS * 2, VOLD_TAG, 25, |
| null); |
| mConnector.setDebug(true); |
| |
| Thread thread = new Thread(mConnector, VOLD_TAG); |
| thread.start(); |
| |
| // Add ourself to the Watchdog monitors if enabled. |
| if (WATCHDOG_ENABLE) { |
| Watchdog.getInstance().addMonitor(this); |
| } |
| } |
| |
| private void systemReady() { |
| mSystemReady = true; |
| mHandler.obtainMessage(H_SYSTEM_READY).sendToTarget(); |
| } |
| |
| private void readMetadataLocked() { |
| mMetadata.clear(); |
| |
| FileInputStream fis = null; |
| try { |
| fis = mMetadataFile.openRead(); |
| final XmlPullParser in = Xml.newPullParser(); |
| in.setInput(fis, null); |
| |
| int type; |
| while ((type = in.next()) != END_DOCUMENT) { |
| if (type == START_TAG) { |
| final String tag = in.getName(); |
| if (TAG_VOLUMES.equals(tag)) { |
| final int version = readIntAttribute(in, ATTR_VERSION, VERSION_INIT); |
| if (version >= VERSION_ADD_PRIMARY) { |
| mPrimaryStorageUuid = readStringAttribute(in, |
| ATTR_PRIMARY_STORAGE_UUID); |
| } else { |
| if (SystemProperties.getBoolean(StorageManager.PROP_PRIMARY_PHYSICAL, |
| false)) { |
| mPrimaryStorageUuid = StorageManager.UUID_PRIMARY_PHYSICAL; |
| } else { |
| mPrimaryStorageUuid = StorageManager.UUID_PRIVATE_INTERNAL; |
| } |
| } |
| |
| } else if (TAG_VOLUME.equals(tag)) { |
| final VolumeMetadata meta = VolumeMetadata.read(in); |
| mMetadata.put(meta.fsUuid, meta); |
| } |
| } |
| } |
| } catch (FileNotFoundException e) { |
| // Missing metadata is okay, probably first boot |
| } catch (IOException e) { |
| Slog.wtf(TAG, "Failed reading metadata", e); |
| } catch (XmlPullParserException e) { |
| Slog.wtf(TAG, "Failed reading metadata", e); |
| } finally { |
| IoUtils.closeQuietly(fis); |
| } |
| } |
| |
| private void writeMetadataLocked() { |
| FileOutputStream fos = null; |
| try { |
| fos = mMetadataFile.startWrite(); |
| |
| XmlSerializer out = new FastXmlSerializer(); |
| out.setOutput(fos, "utf-8"); |
| out.startDocument(null, true); |
| out.startTag(null, TAG_VOLUMES); |
| writeIntAttribute(out, ATTR_VERSION, VERSION_ADD_PRIMARY); |
| writeStringAttribute(out, ATTR_PRIMARY_STORAGE_UUID, mPrimaryStorageUuid); |
| final int size = mMetadata.size(); |
| for (int i = 0; i < size; i++) { |
| final VolumeMetadata meta = mMetadata.valueAt(i); |
| VolumeMetadata.write(out, meta); |
| } |
| out.endTag(null, TAG_VOLUMES); |
| out.endDocument(); |
| |
| mMetadataFile.finishWrite(fos); |
| } catch (IOException e) { |
| if (fos != null) { |
| mMetadataFile.failWrite(fos); |
| } |
| } |
| } |
| |
| /** |
| * Exposed API calls below here |
| */ |
| |
| @Override |
| public void registerListener(IMountServiceListener listener) { |
| mCallbacks.register(listener); |
| } |
| |
| @Override |
| public void unregisterListener(IMountServiceListener listener) { |
| mCallbacks.unregister(listener); |
| } |
| |
| @Override |
| public void shutdown(final IMountShutdownObserver observer) { |
| enforcePermission(android.Manifest.permission.SHUTDOWN); |
| |
| Slog.i(TAG, "Shutting down"); |
| mHandler.obtainMessage(H_SHUTDOWN, observer).sendToTarget(); |
| } |
| |
| @Override |
| public boolean isUsbMassStorageConnected() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public void setUsbMassStorageEnabled(boolean enable) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public boolean isUsbMassStorageEnabled() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public String getVolumeState(String mountPoint) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public boolean isExternalStorageEmulated() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public int mountVolume(String path) { |
| mount(findVolumeIdForPath(path)); |
| return 0; |
| } |
| |
| @Override |
| public void unmountVolume(String path, boolean force, boolean removeEncryption) { |
| unmount(findVolumeIdForPath(path)); |
| } |
| |
| @Override |
| public int formatVolume(String path) { |
| format(findVolumeIdForPath(path)); |
| return 0; |
| } |
| |
| @Override |
| public void mount(String volId) { |
| enforcePermission(android.Manifest.permission.MOUNT_UNMOUNT_FILESYSTEMS); |
| waitForReady(); |
| |
| final VolumeInfo vol = findVolumeById(volId); |
| if (vol.type == VolumeInfo.TYPE_PUBLIC || vol.type == VolumeInfo.TYPE_PRIVATE) { |
| enforceUserRestriction(UserManager.DISALLOW_MOUNT_PHYSICAL_MEDIA); |
| } |
| try { |
| mConnector.execute("volume", "mount", vol.id, vol.mountFlags, vol.mountUserId); |
| } catch (NativeDaemonConnectorException e) { |
| throw e.rethrowAsParcelableException(); |
| } |
| } |
| |
| @Override |
| public void unmount(String volId) { |
| enforcePermission(android.Manifest.permission.MOUNT_UNMOUNT_FILESYSTEMS); |
| waitForReady(); |
| |
| final VolumeInfo vol = findVolumeById(volId); |
| |
| // TODO: expand PMS to know about multiple volumes |
| if (vol.isPrimary()) { |
| synchronized (mUnmountLock) { |
| mUnmountSignal = new CountDownLatch(1); |
| mPms.updateExternalMediaStatus(false, true); |
| waitForLatch(mUnmountSignal, "mUnmountSignal"); |
| mUnmountSignal = null; |
| } |
| } |
| |
| try { |
| mConnector.execute("volume", "unmount", vol.id); |
| } catch (NativeDaemonConnectorException e) { |
| throw e.rethrowAsParcelableException(); |
| } |
| } |
| |
| @Override |
| public void format(String volId) { |
| enforcePermission(android.Manifest.permission.MOUNT_FORMAT_FILESYSTEMS); |
| waitForReady(); |
| |
| final VolumeInfo vol = findVolumeById(volId); |
| try { |
| mConnector.execute("volume", "format", vol.id); |
| } catch (NativeDaemonConnectorException e) { |
| throw e.rethrowAsParcelableException(); |
| } |
| } |
| |
| @Override |
| public void partitionPublic(String diskId) { |
| enforcePermission(android.Manifest.permission.MOUNT_FORMAT_FILESYSTEMS); |
| waitForReady(); |
| |
| final CountDownLatch latch = findOrCreateDiskScanLatch(diskId); |
| try { |
| mConnector.execute("volume", "partition", diskId, "public"); |
| } catch (NativeDaemonConnectorException e) { |
| throw e.rethrowAsParcelableException(); |
| } |
| waitForLatch(latch, "partitionPublic"); |
| } |
| |
| @Override |
| public void partitionPrivate(String diskId) { |
| enforcePermission(android.Manifest.permission.MOUNT_FORMAT_FILESYSTEMS); |
| waitForReady(); |
| |
| final CountDownLatch latch = findOrCreateDiskScanLatch(diskId); |
| try { |
| mConnector.execute("volume", "partition", diskId, "private"); |
| } catch (NativeDaemonConnectorException e) { |
| throw e.rethrowAsParcelableException(); |
| } |
| waitForLatch(latch, "partitionPrivate"); |
| } |
| |
| @Override |
| public void partitionMixed(String diskId, int ratio) { |
| enforcePermission(android.Manifest.permission.MOUNT_FORMAT_FILESYSTEMS); |
| waitForReady(); |
| |
| final CountDownLatch latch = findOrCreateDiskScanLatch(diskId); |
| try { |
| mConnector.execute("volume", "partition", diskId, "mixed", ratio); |
| } catch (NativeDaemonConnectorException e) { |
| throw e.rethrowAsParcelableException(); |
| } |
| waitForLatch(latch, "partitionMixed"); |
| } |
| |
| @Override |
| public void setVolumeNickname(String volId, String nickname) { |
| enforcePermission(android.Manifest.permission.MOUNT_UNMOUNT_FILESYSTEMS); |
| waitForReady(); |
| |
| synchronized (mLock) { |
| final VolumeInfo vol = findVolumeById(volId); |
| final VolumeMetadata meta = findOrCreateMetadataLocked(vol); |
| meta.nickname = nickname; |
| refreshMetadataLocked(); |
| writeMetadataLocked(); |
| mCallbacks.notifyVolumeMetadataChanged(vol.clone()); |
| } |
| } |
| |
| @Override |
| public void setVolumeUserFlags(String volId, int flags, int mask) { |
| enforcePermission(android.Manifest.permission.MOUNT_UNMOUNT_FILESYSTEMS); |
| waitForReady(); |
| |
| synchronized (mLock) { |
| final VolumeInfo vol = findVolumeById(volId); |
| final VolumeMetadata meta = findOrCreateMetadataLocked(vol); |
| meta.userFlags = (meta.userFlags & ~mask) | (flags & mask); |
| refreshMetadataLocked(); |
| writeMetadataLocked(); |
| mCallbacks.notifyVolumeMetadataChanged(vol.clone()); |
| } |
| } |
| |
| @Override |
| public String getPrimaryStorageUuid() throws RemoteException { |
| synchronized (mLock) { |
| return mPrimaryStorageUuid; |
| } |
| } |
| |
| @Override |
| public void setPrimaryStorageUuid(String volumeUuid) throws RemoteException { |
| synchronized (mLock) { |
| Slog.d(TAG, "Changing primary storage UUID to " + volumeUuid); |
| mPrimaryStorageUuid = volumeUuid; |
| writeMetadataLocked(); |
| |
| // TODO: reevaluate all volumes we know about! |
| } |
| } |
| |
| @Override |
| public int[] getStorageUsers(String path) { |
| enforcePermission(android.Manifest.permission.MOUNT_UNMOUNT_FILESYSTEMS); |
| waitForReady(); |
| try { |
| final String[] r = NativeDaemonEvent.filterMessageList( |
| mConnector.executeForList("storage", "users", path), |
| VoldResponseCode.StorageUsersListResult); |
| |
| // FMT: <pid> <process name> |
| int[] data = new int[r.length]; |
| for (int i = 0; i < r.length; i++) { |
| String[] tok = r[i].split(" "); |
| try { |
| data[i] = Integer.parseInt(tok[0]); |
| } catch (NumberFormatException nfe) { |
| Slog.e(TAG, String.format("Error parsing pid %s", tok[0])); |
| return new int[0]; |
| } |
| } |
| return data; |
| } catch (NativeDaemonConnectorException e) { |
| Slog.e(TAG, "Failed to retrieve storage users list", e); |
| return new int[0]; |
| } |
| } |
| |
| private void warnOnNotMounted() { |
| synchronized (mLock) { |
| for (int i = 0; i < mVolumes.size(); i++) { |
| final VolumeInfo vol = mVolumes.valueAt(i); |
| if (vol.isPrimary() && vol.isMountedWritable()) { |
| // Cool beans, we have a mounted primary volume |
| return; |
| } |
| } |
| } |
| |
| Slog.w(TAG, "No primary storage mounted!"); |
| } |
| |
| public String[] getSecureContainerList() { |
| enforcePermission(android.Manifest.permission.ASEC_ACCESS); |
| waitForReady(); |
| warnOnNotMounted(); |
| |
| try { |
| return NativeDaemonEvent.filterMessageList( |
| mConnector.executeForList("asec", "list"), VoldResponseCode.AsecListResult); |
| } catch (NativeDaemonConnectorException e) { |
| return new String[0]; |
| } |
| } |
| |
| public int createSecureContainer(String id, int sizeMb, String fstype, String key, |
| int ownerUid, boolean external) { |
| enforcePermission(android.Manifest.permission.ASEC_CREATE); |
| waitForReady(); |
| warnOnNotMounted(); |
| |
| int rc = StorageResultCode.OperationSucceeded; |
| try { |
| mConnector.execute("asec", "create", id, sizeMb, fstype, new SensitiveArg(key), |
| ownerUid, external ? "1" : "0"); |
| } catch (NativeDaemonConnectorException e) { |
| rc = StorageResultCode.OperationFailedInternalError; |
| } |
| |
| if (rc == StorageResultCode.OperationSucceeded) { |
| synchronized (mAsecMountSet) { |
| mAsecMountSet.add(id); |
| } |
| } |
| return rc; |
| } |
| |
| @Override |
| public int resizeSecureContainer(String id, int sizeMb, String key) { |
| enforcePermission(android.Manifest.permission.ASEC_CREATE); |
| waitForReady(); |
| warnOnNotMounted(); |
| |
| int rc = StorageResultCode.OperationSucceeded; |
| try { |
| mConnector.execute("asec", "resize", id, sizeMb, new SensitiveArg(key)); |
| } catch (NativeDaemonConnectorException e) { |
| rc = StorageResultCode.OperationFailedInternalError; |
| } |
| return rc; |
| } |
| |
| public int finalizeSecureContainer(String id) { |
| enforcePermission(android.Manifest.permission.ASEC_CREATE); |
| warnOnNotMounted(); |
| |
| int rc = StorageResultCode.OperationSucceeded; |
| try { |
| mConnector.execute("asec", "finalize", id); |
| /* |
| * Finalization does a remount, so no need |
| * to update mAsecMountSet |
| */ |
| } catch (NativeDaemonConnectorException e) { |
| rc = StorageResultCode.OperationFailedInternalError; |
| } |
| return rc; |
| } |
| |
| public int fixPermissionsSecureContainer(String id, int gid, String filename) { |
| enforcePermission(android.Manifest.permission.ASEC_CREATE); |
| warnOnNotMounted(); |
| |
| int rc = StorageResultCode.OperationSucceeded; |
| try { |
| mConnector.execute("asec", "fixperms", id, gid, filename); |
| /* |
| * Fix permissions does a remount, so no need to update |
| * mAsecMountSet |
| */ |
| } catch (NativeDaemonConnectorException e) { |
| rc = StorageResultCode.OperationFailedInternalError; |
| } |
| return rc; |
| } |
| |
| public int destroySecureContainer(String id, boolean force) { |
| enforcePermission(android.Manifest.permission.ASEC_DESTROY); |
| waitForReady(); |
| warnOnNotMounted(); |
| |
| /* |
| * Force a GC to make sure AssetManagers in other threads of the |
| * system_server are cleaned up. We have to do this since AssetManager |
| * instances are kept as a WeakReference and it's possible we have files |
| * open on the external storage. |
| */ |
| Runtime.getRuntime().gc(); |
| |
| int rc = StorageResultCode.OperationSucceeded; |
| try { |
| final Command cmd = new Command("asec", "destroy", id); |
| if (force) { |
| cmd.appendArg("force"); |
| } |
| mConnector.execute(cmd); |
| } catch (NativeDaemonConnectorException e) { |
| int code = e.getCode(); |
| if (code == VoldResponseCode.OpFailedStorageBusy) { |
| rc = StorageResultCode.OperationFailedStorageBusy; |
| } else { |
| rc = StorageResultCode.OperationFailedInternalError; |
| } |
| } |
| |
| if (rc == StorageResultCode.OperationSucceeded) { |
| synchronized (mAsecMountSet) { |
| if (mAsecMountSet.contains(id)) { |
| mAsecMountSet.remove(id); |
| } |
| } |
| } |
| |
| return rc; |
| } |
| |
| public int mountSecureContainer(String id, String key, int ownerUid, boolean readOnly) { |
| enforcePermission(android.Manifest.permission.ASEC_MOUNT_UNMOUNT); |
| waitForReady(); |
| warnOnNotMounted(); |
| |
| synchronized (mAsecMountSet) { |
| if (mAsecMountSet.contains(id)) { |
| return StorageResultCode.OperationFailedStorageMounted; |
| } |
| } |
| |
| int rc = StorageResultCode.OperationSucceeded; |
| try { |
| mConnector.execute("asec", "mount", id, new SensitiveArg(key), ownerUid, |
| readOnly ? "ro" : "rw"); |
| } catch (NativeDaemonConnectorException e) { |
| int code = e.getCode(); |
| if (code != VoldResponseCode.OpFailedStorageBusy) { |
| rc = StorageResultCode.OperationFailedInternalError; |
| } |
| } |
| |
| if (rc == StorageResultCode.OperationSucceeded) { |
| synchronized (mAsecMountSet) { |
| mAsecMountSet.add(id); |
| } |
| } |
| return rc; |
| } |
| |
| public int unmountSecureContainer(String id, boolean force) { |
| enforcePermission(android.Manifest.permission.ASEC_MOUNT_UNMOUNT); |
| waitForReady(); |
| warnOnNotMounted(); |
| |
| synchronized (mAsecMountSet) { |
| if (!mAsecMountSet.contains(id)) { |
| return StorageResultCode.OperationFailedStorageNotMounted; |
| } |
| } |
| |
| /* |
| * Force a GC to make sure AssetManagers in other threads of the |
| * system_server are cleaned up. We have to do this since AssetManager |
| * instances are kept as a WeakReference and it's possible we have files |
| * open on the external storage. |
| */ |
| Runtime.getRuntime().gc(); |
| |
| int rc = StorageResultCode.OperationSucceeded; |
| try { |
| final Command cmd = new Command("asec", "unmount", id); |
| if (force) { |
| cmd.appendArg("force"); |
| } |
| mConnector.execute(cmd); |
| } catch (NativeDaemonConnectorException e) { |
| int code = e.getCode(); |
| if (code == VoldResponseCode.OpFailedStorageBusy) { |
| rc = StorageResultCode.OperationFailedStorageBusy; |
| } else { |
| rc = StorageResultCode.OperationFailedInternalError; |
| } |
| } |
| |
| if (rc == StorageResultCode.OperationSucceeded) { |
| synchronized (mAsecMountSet) { |
| mAsecMountSet.remove(id); |
| } |
| } |
| return rc; |
| } |
| |
| public boolean isSecureContainerMounted(String id) { |
| enforcePermission(android.Manifest.permission.ASEC_ACCESS); |
| waitForReady(); |
| warnOnNotMounted(); |
| |
| synchronized (mAsecMountSet) { |
| return mAsecMountSet.contains(id); |
| } |
| } |
| |
| public int renameSecureContainer(String oldId, String newId) { |
| enforcePermission(android.Manifest.permission.ASEC_RENAME); |
| waitForReady(); |
| warnOnNotMounted(); |
| |
| synchronized (mAsecMountSet) { |
| /* |
| * Because a mounted container has active internal state which cannot be |
| * changed while active, we must ensure both ids are not currently mounted. |
| */ |
| if (mAsecMountSet.contains(oldId) || mAsecMountSet.contains(newId)) { |
| return StorageResultCode.OperationFailedStorageMounted; |
| } |
| } |
| |
| int rc = StorageResultCode.OperationSucceeded; |
| try { |
| mConnector.execute("asec", "rename", oldId, newId); |
| } catch (NativeDaemonConnectorException e) { |
| rc = StorageResultCode.OperationFailedInternalError; |
| } |
| |
| return rc; |
| } |
| |
| public String getSecureContainerPath(String id) { |
| enforcePermission(android.Manifest.permission.ASEC_ACCESS); |
| waitForReady(); |
| warnOnNotMounted(); |
| |
| final NativeDaemonEvent event; |
| try { |
| event = mConnector.execute("asec", "path", id); |
| event.checkCode(VoldResponseCode.AsecPathResult); |
| return event.getMessage(); |
| } catch (NativeDaemonConnectorException e) { |
| int code = e.getCode(); |
| if (code == VoldResponseCode.OpFailedStorageNotFound) { |
| Slog.i(TAG, String.format("Container '%s' not found", id)); |
| return null; |
| } else { |
| throw new IllegalStateException(String.format("Unexpected response code %d", code)); |
| } |
| } |
| } |
| |
| public String getSecureContainerFilesystemPath(String id) { |
| enforcePermission(android.Manifest.permission.ASEC_ACCESS); |
| waitForReady(); |
| warnOnNotMounted(); |
| |
| final NativeDaemonEvent event; |
| try { |
| event = mConnector.execute("asec", "fspath", id); |
| event.checkCode(VoldResponseCode.AsecPathResult); |
| return event.getMessage(); |
| } catch (NativeDaemonConnectorException e) { |
| int code = e.getCode(); |
| if (code == VoldResponseCode.OpFailedStorageNotFound) { |
| Slog.i(TAG, String.format("Container '%s' not found", id)); |
| return null; |
| } else { |
| throw new IllegalStateException(String.format("Unexpected response code %d", code)); |
| } |
| } |
| } |
| |
| @Override |
| public void finishMediaUpdate() { |
| if (Binder.getCallingUid() != android.os.Process.SYSTEM_UID) { |
| throw new SecurityException("no permission to call finishMediaUpdate()"); |
| } |
| if (mUnmountSignal != null) { |
| mUnmountSignal.countDown(); |
| } else { |
| Slog.w(TAG, "Odd, nobody asked to unmount?"); |
| } |
| } |
| |
| private boolean isUidOwnerOfPackageOrSystem(String packageName, int callerUid) { |
| if (callerUid == android.os.Process.SYSTEM_UID) { |
| return true; |
| } |
| |
| if (packageName == null) { |
| return false; |
| } |
| |
| final int packageUid = mPms.getPackageUid(packageName, UserHandle.getUserId(callerUid)); |
| |
| if (DEBUG_OBB) { |
| Slog.d(TAG, "packageName = " + packageName + ", packageUid = " + |
| packageUid + ", callerUid = " + callerUid); |
| } |
| |
| return callerUid == packageUid; |
| } |
| |
| public String getMountedObbPath(String rawPath) { |
| Preconditions.checkNotNull(rawPath, "rawPath cannot be null"); |
| |
| waitForReady(); |
| warnOnNotMounted(); |
| |
| final ObbState state; |
| synchronized (mObbMounts) { |
| state = mObbPathToStateMap.get(rawPath); |
| } |
| if (state == null) { |
| Slog.w(TAG, "Failed to find OBB mounted at " + rawPath); |
| return null; |
| } |
| |
| final NativeDaemonEvent event; |
| try { |
| event = mConnector.execute("obb", "path", state.voldPath); |
| event.checkCode(VoldResponseCode.AsecPathResult); |
| return event.getMessage(); |
| } catch (NativeDaemonConnectorException e) { |
| int code = e.getCode(); |
| if (code == VoldResponseCode.OpFailedStorageNotFound) { |
| return null; |
| } else { |
| throw new IllegalStateException(String.format("Unexpected response code %d", code)); |
| } |
| } |
| } |
| |
| @Override |
| public boolean isObbMounted(String rawPath) { |
| Preconditions.checkNotNull(rawPath, "rawPath cannot be null"); |
| synchronized (mObbMounts) { |
| return mObbPathToStateMap.containsKey(rawPath); |
| } |
| } |
| |
| @Override |
| public void mountObb( |
| String rawPath, String canonicalPath, String key, IObbActionListener token, int nonce) { |
| Preconditions.checkNotNull(rawPath, "rawPath cannot be null"); |
| Preconditions.checkNotNull(canonicalPath, "canonicalPath cannot be null"); |
| Preconditions.checkNotNull(token, "token cannot be null"); |
| |
| final int callingUid = Binder.getCallingUid(); |
| final ObbState obbState = new ObbState(rawPath, canonicalPath, callingUid, token, nonce); |
| final ObbAction action = new MountObbAction(obbState, key, callingUid); |
| mObbActionHandler.sendMessage(mObbActionHandler.obtainMessage(OBB_RUN_ACTION, action)); |
| |
| if (DEBUG_OBB) |
| Slog.i(TAG, "Send to OBB handler: " + action.toString()); |
| } |
| |
| @Override |
| public void unmountObb(String rawPath, boolean force, IObbActionListener token, int nonce) { |
| Preconditions.checkNotNull(rawPath, "rawPath cannot be null"); |
| |
| final ObbState existingState; |
| synchronized (mObbMounts) { |
| existingState = mObbPathToStateMap.get(rawPath); |
| } |
| |
| if (existingState != null) { |
| // TODO: separate state object from request data |
| final int callingUid = Binder.getCallingUid(); |
| final ObbState newState = new ObbState( |
| rawPath, existingState.canonicalPath, callingUid, token, nonce); |
| final ObbAction action = new UnmountObbAction(newState, force); |
| mObbActionHandler.sendMessage(mObbActionHandler.obtainMessage(OBB_RUN_ACTION, action)); |
| |
| if (DEBUG_OBB) |
| Slog.i(TAG, "Send to OBB handler: " + action.toString()); |
| } else { |
| Slog.w(TAG, "Unknown OBB mount at " + rawPath); |
| } |
| } |
| |
| @Override |
| public int getEncryptionState() { |
| mContext.enforceCallingOrSelfPermission(Manifest.permission.CRYPT_KEEPER, |
| "no permission to access the crypt keeper"); |
| |
| waitForReady(); |
| |
| final NativeDaemonEvent event; |
| try { |
| event = mConnector.execute("cryptfs", "cryptocomplete"); |
| return Integer.parseInt(event.getMessage()); |
| } catch (NumberFormatException e) { |
| // Bad result - unexpected. |
| Slog.w(TAG, "Unable to parse result from cryptfs cryptocomplete"); |
| return ENCRYPTION_STATE_ERROR_UNKNOWN; |
| } catch (NativeDaemonConnectorException e) { |
| // Something bad happened. |
| Slog.w(TAG, "Error in communicating with cryptfs in validating"); |
| return ENCRYPTION_STATE_ERROR_UNKNOWN; |
| } |
| } |
| |
| private static String toHex(String password) { |
| if (password == null) { |
| return ""; |
| } |
| byte[] bytes = password.getBytes(StandardCharsets.UTF_8); |
| return new String(HexEncoding.encode(bytes)); |
| } |
| |
| private static String fromHex(String hexPassword) throws IllegalArgumentException { |
| if (hexPassword == null) { |
| return null; |
| } |
| |
| final byte[] bytes = HexEncoding.decode(hexPassword.toCharArray(), false); |
| return new String(bytes, StandardCharsets.UTF_8); |
| } |
| |
| @Override |
| public int decryptStorage(String password) { |
| if (TextUtils.isEmpty(password)) { |
| throw new IllegalArgumentException("password cannot be empty"); |
| } |
| |
| mContext.enforceCallingOrSelfPermission(Manifest.permission.CRYPT_KEEPER, |
| "no permission to access the crypt keeper"); |
| |
| waitForReady(); |
| |
| if (DEBUG_EVENTS) { |
| Slog.i(TAG, "decrypting storage..."); |
| } |
| |
| final NativeDaemonEvent event; |
| try { |
| event = mConnector.execute("cryptfs", "checkpw", new SensitiveArg(toHex(password))); |
| |
| final int code = Integer.parseInt(event.getMessage()); |
| if (code == 0) { |
| // Decrypt was successful. Post a delayed message before restarting in order |
| // to let the UI to clear itself |
| mHandler.postDelayed(new Runnable() { |
| public void run() { |
| try { |
| mConnector.execute("cryptfs", "restart"); |
| } catch (NativeDaemonConnectorException e) { |
| Slog.e(TAG, "problem executing in background", e); |
| } |
| } |
| }, 1000); // 1 second |
| } |
| |
| return code; |
| } catch (NativeDaemonConnectorException e) { |
| // Decryption failed |
| return e.getCode(); |
| } |
| } |
| |
| public int encryptStorage(int type, String password) { |
| if (TextUtils.isEmpty(password) && type != StorageManager.CRYPT_TYPE_DEFAULT) { |
| throw new IllegalArgumentException("password cannot be empty"); |
| } |
| |
| mContext.enforceCallingOrSelfPermission(Manifest.permission.CRYPT_KEEPER, |
| "no permission to access the crypt keeper"); |
| |
| waitForReady(); |
| |
| if (DEBUG_EVENTS) { |
| Slog.i(TAG, "encrypting storage..."); |
| } |
| |
| try { |
| mConnector.execute("cryptfs", "enablecrypto", "inplace", CRYPTO_TYPES[type], |
| new SensitiveArg(toHex(password))); |
| } catch (NativeDaemonConnectorException e) { |
| // Encryption failed |
| return e.getCode(); |
| } |
| |
| return 0; |
| } |
| |
| /** Set the password for encrypting the master key. |
| * @param type One of the CRYPTO_TYPE_XXX consts defined in StorageManager. |
| * @param password The password to set. |
| */ |
| public int changeEncryptionPassword(int type, String password) { |
| mContext.enforceCallingOrSelfPermission(Manifest.permission.CRYPT_KEEPER, |
| "no permission to access the crypt keeper"); |
| |
| waitForReady(); |
| |
| if (DEBUG_EVENTS) { |
| Slog.i(TAG, "changing encryption password..."); |
| } |
| |
| try { |
| NativeDaemonEvent event = mConnector.execute("cryptfs", "changepw", CRYPTO_TYPES[type], |
| new SensitiveArg(toHex(password))); |
| return Integer.parseInt(event.getMessage()); |
| } catch (NativeDaemonConnectorException e) { |
| // Encryption failed |
| return e.getCode(); |
| } |
| } |
| |
| /** |
| * Validate a user-supplied password string with cryptfs |
| */ |
| @Override |
| public int verifyEncryptionPassword(String password) throws RemoteException { |
| // Only the system process is permitted to validate passwords |
| if (Binder.getCallingUid() != android.os.Process.SYSTEM_UID) { |
| throw new SecurityException("no permission to access the crypt keeper"); |
| } |
| |
| mContext.enforceCallingOrSelfPermission(Manifest.permission.CRYPT_KEEPER, |
| "no permission to access the crypt keeper"); |
| |
| if (TextUtils.isEmpty(password)) { |
| throw new IllegalArgumentException("password cannot be empty"); |
| } |
| |
| waitForReady(); |
| |
| if (DEBUG_EVENTS) { |
| Slog.i(TAG, "validating encryption password..."); |
| } |
| |
| final NativeDaemonEvent event; |
| try { |
| event = mConnector.execute("cryptfs", "verifypw", new SensitiveArg(toHex(password))); |
| Slog.i(TAG, "cryptfs verifypw => " + event.getMessage()); |
| return Integer.parseInt(event.getMessage()); |
| } catch (NativeDaemonConnectorException e) { |
| // Encryption failed |
| return e.getCode(); |
| } |
| } |
| |
| /** |
| * Get the type of encryption used to encrypt the master key. |
| * @return The type, one of the CRYPT_TYPE_XXX consts from StorageManager. |
| */ |
| @Override |
| public int getPasswordType() { |
| |
| waitForReady(); |
| |
| final NativeDaemonEvent event; |
| try { |
| event = mConnector.execute("cryptfs", "getpwtype"); |
| for (int i = 0; i < CRYPTO_TYPES.length; ++i) { |
| if (CRYPTO_TYPES[i].equals(event.getMessage())) |
| return i; |
| } |
| |
| throw new IllegalStateException("unexpected return from cryptfs"); |
| } catch (NativeDaemonConnectorException e) { |
| throw e.rethrowAsParcelableException(); |
| } |
| } |
| |
| /** |
| * Set a field in the crypto header. |
| * @param field field to set |
| * @param contents contents to set in field |
| */ |
| @Override |
| public void setField(String field, String contents) throws RemoteException { |
| |
| waitForReady(); |
| |
| final NativeDaemonEvent event; |
| try { |
| event = mConnector.execute("cryptfs", "setfield", field, contents); |
| } catch (NativeDaemonConnectorException e) { |
| throw e.rethrowAsParcelableException(); |
| } |
| } |
| |
| /** |
| * Gets a field from the crypto header. |
| * @param field field to get |
| * @return contents of field |
| */ |
| @Override |
| public String getField(String field) throws RemoteException { |
| |
| waitForReady(); |
| |
| final NativeDaemonEvent event; |
| try { |
| final String[] contents = NativeDaemonEvent.filterMessageList( |
| mConnector.executeForList("cryptfs", "getfield", field), |
| VoldResponseCode.CryptfsGetfieldResult); |
| String result = new String(); |
| for (String content : contents) { |
| result += content; |
| } |
| return result; |
| } catch (NativeDaemonConnectorException e) { |
| throw e.rethrowAsParcelableException(); |
| } |
| } |
| |
| @Override |
| public String getPassword() throws RemoteException { |
| mContext.enforceCallingOrSelfPermission(Manifest.permission.ACCESS_KEYGUARD_SECURE_STORAGE, |
| "only keyguard can retrieve password"); |
| if (!isReady()) { |
| return new String(); |
| } |
| |
| final NativeDaemonEvent event; |
| try { |
| event = mConnector.execute("cryptfs", "getpw"); |
| if ("-1".equals(event.getMessage())) { |
| // -1 equals no password |
| return null; |
| } |
| return fromHex(event.getMessage()); |
| } catch (NativeDaemonConnectorException e) { |
| throw e.rethrowAsParcelableException(); |
| } catch (IllegalArgumentException e) { |
| Slog.e(TAG, "Invalid response to getPassword"); |
| return null; |
| } |
| } |
| |
| @Override |
| public void clearPassword() throws RemoteException { |
| if (!isReady()) { |
| return; |
| } |
| |
| final NativeDaemonEvent event; |
| try { |
| event = mConnector.execute("cryptfs", "clearpw"); |
| } catch (NativeDaemonConnectorException e) { |
| throw e.rethrowAsParcelableException(); |
| } |
| } |
| |
| @Override |
| public int mkdirs(String callingPkg, String appPath) { |
| final int userId = UserHandle.getUserId(Binder.getCallingUid()); |
| final UserEnvironment userEnv = new UserEnvironment(userId); |
| |
| // Validate that reported package name belongs to caller |
| final AppOpsManager appOps = (AppOpsManager) mContext.getSystemService( |
| Context.APP_OPS_SERVICE); |
| appOps.checkPackage(Binder.getCallingUid(), callingPkg); |
| |
| File appFile = null; |
| try { |
| appFile = new File(appPath).getCanonicalFile(); |
| } catch (IOException e) { |
| Slog.e(TAG, "Failed to resolve " + appPath + ": " + e); |
| return -1; |
| } |
| |
| // Try translating the app path into a vold path, but require that it |
| // belong to the calling package. |
| if (FileUtils.contains(userEnv.buildExternalStorageAppDataDirs(callingPkg), appFile) || |
| FileUtils.contains(userEnv.buildExternalStorageAppObbDirs(callingPkg), appFile) || |
| FileUtils.contains(userEnv.buildExternalStorageAppMediaDirs(callingPkg), appFile)) { |
| appPath = appFile.getAbsolutePath(); |
| if (!appPath.endsWith("/")) { |
| appPath = appPath + "/"; |
| } |
| |
| try { |
| mConnector.execute("volume", "mkdirs", appPath); |
| return 0; |
| } catch (NativeDaemonConnectorException e) { |
| return e.getCode(); |
| } |
| } |
| |
| throw new SecurityException("Invalid mkdirs path: " + appFile); |
| } |
| |
| @Override |
| public StorageVolume[] getVolumeList(int userId) { |
| final ArrayList<StorageVolume> res = new ArrayList<>(); |
| boolean foundPrimary = false; |
| |
| synchronized (mLock) { |
| for (int i = 0; i < mVolumes.size(); i++) { |
| final VolumeInfo vol = mVolumes.valueAt(i); |
| if (vol.isVisibleToUser(userId)) { |
| final StorageVolume userVol = vol.buildStorageVolume(mContext, userId); |
| if (vol.isPrimary()) { |
| res.add(0, userVol); |
| foundPrimary = true; |
| } else { |
| res.add(userVol); |
| } |
| } |
| } |
| } |
| |
| if (!foundPrimary) { |
| Log.w(TAG, "No primary storage defined yet; hacking together a stub"); |
| |
| final boolean primaryPhysical = SystemProperties.getBoolean( |
| StorageManager.PROP_PRIMARY_PHYSICAL, false); |
| |
| final String id = "stub_primary"; |
| final File path = Environment.getLegacyExternalStorageDirectory(); |
| final String description = mContext.getString(android.R.string.unknownName); |
| final boolean primary = true; |
| final boolean removable = primaryPhysical; |
| final boolean emulated = !primaryPhysical; |
| final long mtpReserveSize = 0L; |
| final boolean allowMassStorage = false; |
| final long maxFileSize = 0L; |
| final UserHandle owner = new UserHandle(userId); |
| final String uuid = null; |
| final String state = Environment.MEDIA_REMOVED; |
| |
| res.add(0, new StorageVolume(id, MtpStorage.getStorageIdForIndex(0), path, |
| description, primary, removable, emulated, mtpReserveSize, |
| allowMassStorage, maxFileSize, owner, uuid, state)); |
| } |
| |
| return res.toArray(new StorageVolume[res.size()]); |
| } |
| |
| @Override |
| public DiskInfo[] getDisks() { |
| synchronized (mLock) { |
| final DiskInfo[] res = new DiskInfo[mDisks.size()]; |
| for (int i = 0; i < mDisks.size(); i++) { |
| res[i] = mDisks.valueAt(i); |
| } |
| return res; |
| } |
| } |
| |
| @Override |
| public VolumeInfo[] getVolumes(int flags) { |
| if ((flags & StorageManager.FLAG_ALL_METADATA) != 0) { |
| // TODO: implement support for returning all metadata |
| throw new UnsupportedOperationException(); |
| } |
| |
| synchronized (mLock) { |
| final VolumeInfo[] res = new VolumeInfo[mVolumes.size()]; |
| for (int i = 0; i < mVolumes.size(); i++) { |
| res[i] = mVolumes.valueAt(i); |
| } |
| return res; |
| } |
| } |
| |
| private void addObbStateLocked(ObbState obbState) throws RemoteException { |
| final IBinder binder = obbState.getBinder(); |
| List<ObbState> obbStates = mObbMounts.get(binder); |
| |
| if (obbStates == null) { |
| obbStates = new ArrayList<ObbState>(); |
| mObbMounts.put(binder, obbStates); |
| } else { |
| for (final ObbState o : obbStates) { |
| if (o.rawPath.equals(obbState.rawPath)) { |
| throw new IllegalStateException("Attempt to add ObbState twice. " |
| + "This indicates an error in the MountService logic."); |
| } |
| } |
| } |
| |
| obbStates.add(obbState); |
| try { |
| obbState.link(); |
| } catch (RemoteException e) { |
| /* |
| * The binder died before we could link it, so clean up our state |
| * and return failure. |
| */ |
| obbStates.remove(obbState); |
| if (obbStates.isEmpty()) { |
| mObbMounts.remove(binder); |
| } |
| |
| // Rethrow the error so mountObb can get it |
| throw e; |
| } |
| |
| mObbPathToStateMap.put(obbState.rawPath, obbState); |
| } |
| |
| private void removeObbStateLocked(ObbState obbState) { |
| final IBinder binder = obbState.getBinder(); |
| final List<ObbState> obbStates = mObbMounts.get(binder); |
| if (obbStates != null) { |
| if (obbStates.remove(obbState)) { |
| obbState.unlink(); |
| } |
| if (obbStates.isEmpty()) { |
| mObbMounts.remove(binder); |
| } |
| } |
| |
| mObbPathToStateMap.remove(obbState.rawPath); |
| } |
| |
| private class ObbActionHandler extends Handler { |
| private boolean mBound = false; |
| private final List<ObbAction> mActions = new LinkedList<ObbAction>(); |
| |
| ObbActionHandler(Looper l) { |
| super(l); |
| } |
| |
| @Override |
| public void handleMessage(Message msg) { |
| switch (msg.what) { |
| case OBB_RUN_ACTION: { |
| final ObbAction action = (ObbAction) msg.obj; |
| |
| if (DEBUG_OBB) |
| Slog.i(TAG, "OBB_RUN_ACTION: " + action.toString()); |
| |
| // If a bind was already initiated we don't really |
| // need to do anything. The pending install |
| // will be processed later on. |
| if (!mBound) { |
| // If this is the only one pending we might |
| // have to bind to the service again. |
| if (!connectToService()) { |
| Slog.e(TAG, "Failed to bind to media container service"); |
| action.handleError(); |
| return; |
| } |
| } |
| |
| mActions.add(action); |
| break; |
| } |
| case OBB_MCS_BOUND: { |
| if (DEBUG_OBB) |
| Slog.i(TAG, "OBB_MCS_BOUND"); |
| if (msg.obj != null) { |
| mContainerService = (IMediaContainerService) msg.obj; |
| } |
| if (mContainerService == null) { |
| // Something seriously wrong. Bail out |
| Slog.e(TAG, "Cannot bind to media container service"); |
| for (ObbAction action : mActions) { |
| // Indicate service bind error |
| action.handleError(); |
| } |
| mActions.clear(); |
| } else if (mActions.size() > 0) { |
| final ObbAction action = mActions.get(0); |
| if (action != null) { |
| action.execute(this); |
| } |
| } else { |
| // Should never happen ideally. |
| Slog.w(TAG, "Empty queue"); |
| } |
| break; |
| } |
| case OBB_MCS_RECONNECT: { |
| if (DEBUG_OBB) |
| Slog.i(TAG, "OBB_MCS_RECONNECT"); |
| if (mActions.size() > 0) { |
| if (mBound) { |
| disconnectService(); |
| } |
| if (!connectToService()) { |
| Slog.e(TAG, "Failed to bind to media container service"); |
| for (ObbAction action : mActions) { |
| // Indicate service bind error |
| action.handleError(); |
| } |
| mActions.clear(); |
| } |
| } |
| break; |
| } |
| case OBB_MCS_UNBIND: { |
| if (DEBUG_OBB) |
| Slog.i(TAG, "OBB_MCS_UNBIND"); |
| |
| // Delete pending install |
| if (mActions.size() > 0) { |
| mActions.remove(0); |
| } |
| if (mActions.size() == 0) { |
| if (mBound) { |
| disconnectService(); |
| } |
| } else { |
| // There are more pending requests in queue. |
| // Just post MCS_BOUND message to trigger processing |
| // of next pending install. |
| mObbActionHandler.sendEmptyMessage(OBB_MCS_BOUND); |
| } |
| break; |
| } |
| case OBB_FLUSH_MOUNT_STATE: { |
| final String path = (String) msg.obj; |
| |
| if (DEBUG_OBB) |
| Slog.i(TAG, "Flushing all OBB state for path " + path); |
| |
| synchronized (mObbMounts) { |
| final List<ObbState> obbStatesToRemove = new LinkedList<ObbState>(); |
| |
| final Iterator<ObbState> i = mObbPathToStateMap.values().iterator(); |
| while (i.hasNext()) { |
| final ObbState state = i.next(); |
| |
| /* |
| * If this entry's source file is in the volume path |
| * that got unmounted, remove it because it's no |
| * longer valid. |
| */ |
| if (state.canonicalPath.startsWith(path)) { |
| obbStatesToRemove.add(state); |
| } |
| } |
| |
| for (final ObbState obbState : obbStatesToRemove) { |
| if (DEBUG_OBB) |
| Slog.i(TAG, "Removing state for " + obbState.rawPath); |
| |
| removeObbStateLocked(obbState); |
| |
| try { |
| obbState.token.onObbResult(obbState.rawPath, obbState.nonce, |
| OnObbStateChangeListener.UNMOUNTED); |
| } catch (RemoteException e) { |
| Slog.i(TAG, "Couldn't send unmount notification for OBB: " |
| + obbState.rawPath); |
| } |
| } |
| } |
| break; |
| } |
| } |
| } |
| |
| private boolean connectToService() { |
| if (DEBUG_OBB) |
| Slog.i(TAG, "Trying to bind to DefaultContainerService"); |
| |
| Intent service = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT); |
| if (mContext.bindService(service, mDefContainerConn, Context.BIND_AUTO_CREATE)) { |
| mBound = true; |
| return true; |
| } |
| return false; |
| } |
| |
| private void disconnectService() { |
| mContainerService = null; |
| mBound = false; |
| mContext.unbindService(mDefContainerConn); |
| } |
| } |
| |
| abstract class ObbAction { |
| private static final int MAX_RETRIES = 3; |
| private int mRetries; |
| |
| ObbState mObbState; |
| |
| ObbAction(ObbState obbState) { |
| mObbState = obbState; |
| } |
| |
| public void execute(ObbActionHandler handler) { |
| try { |
| if (DEBUG_OBB) |
| Slog.i(TAG, "Starting to execute action: " + toString()); |
| mRetries++; |
| if (mRetries > MAX_RETRIES) { |
| Slog.w(TAG, "Failed to invoke remote methods on default container service. Giving up"); |
| mObbActionHandler.sendEmptyMessage(OBB_MCS_UNBIND); |
| handleError(); |
| return; |
| } else { |
| handleExecute(); |
| if (DEBUG_OBB) |
| Slog.i(TAG, "Posting install MCS_UNBIND"); |
| mObbActionHandler.sendEmptyMessage(OBB_MCS_UNBIND); |
| } |
| } catch (RemoteException e) { |
| if (DEBUG_OBB) |
| Slog.i(TAG, "Posting install MCS_RECONNECT"); |
| mObbActionHandler.sendEmptyMessage(OBB_MCS_RECONNECT); |
| } catch (Exception e) { |
| if (DEBUG_OBB) |
| Slog.d(TAG, "Error handling OBB action", e); |
| handleError(); |
| mObbActionHandler.sendEmptyMessage(OBB_MCS_UNBIND); |
| } |
| } |
| |
| abstract void handleExecute() throws RemoteException, IOException; |
| abstract void handleError(); |
| |
| protected ObbInfo getObbInfo() throws IOException { |
| ObbInfo obbInfo; |
| try { |
| obbInfo = mContainerService.getObbInfo(mObbState.ownerPath); |
| } catch (RemoteException e) { |
| Slog.d(TAG, "Couldn't call DefaultContainerService to fetch OBB info for " |
| + mObbState.ownerPath); |
| obbInfo = null; |
| } |
| if (obbInfo == null) { |
| throw new IOException("Couldn't read OBB file: " + mObbState.ownerPath); |
| } |
| return obbInfo; |
| } |
| |
| protected void sendNewStatusOrIgnore(int status) { |
| if (mObbState == null || mObbState.token == null) { |
| return; |
| } |
| |
| try { |
| mObbState.token.onObbResult(mObbState.rawPath, mObbState.nonce, status); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "MountServiceListener went away while calling onObbStateChanged"); |
| } |
| } |
| } |
| |
| class MountObbAction extends ObbAction { |
| private final String mKey; |
| private final int mCallingUid; |
| |
| MountObbAction(ObbState obbState, String key, int callingUid) { |
| super(obbState); |
| mKey = key; |
| mCallingUid = callingUid; |
| } |
| |
| @Override |
| public void handleExecute() throws IOException, RemoteException { |
| waitForReady(); |
| warnOnNotMounted(); |
| |
| final ObbInfo obbInfo = getObbInfo(); |
| |
| if (!isUidOwnerOfPackageOrSystem(obbInfo.packageName, mCallingUid)) { |
| Slog.w(TAG, "Denied attempt to mount OBB " + obbInfo.filename |
| + " which is owned by " + obbInfo.packageName); |
| sendNewStatusOrIgnore(OnObbStateChangeListener.ERROR_PERMISSION_DENIED); |
| return; |
| } |
| |
| final boolean isMounted; |
| synchronized (mObbMounts) { |
| isMounted = mObbPathToStateMap.containsKey(mObbState.rawPath); |
| } |
| if (isMounted) { |
| Slog.w(TAG, "Attempt to mount OBB which is already mounted: " + obbInfo.filename); |
| sendNewStatusOrIgnore(OnObbStateChangeListener.ERROR_ALREADY_MOUNTED); |
| return; |
| } |
| |
| final String hashedKey; |
| if (mKey == null) { |
| hashedKey = "none"; |
| } else { |
| try { |
| SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1"); |
| |
| KeySpec ks = new PBEKeySpec(mKey.toCharArray(), obbInfo.salt, |
| PBKDF2_HASH_ROUNDS, CRYPTO_ALGORITHM_KEY_SIZE); |
| SecretKey key = factory.generateSecret(ks); |
| BigInteger bi = new BigInteger(key.getEncoded()); |
| hashedKey = bi.toString(16); |
| } catch (NoSuchAlgorithmException e) { |
| Slog.e(TAG, "Could not load PBKDF2 algorithm", e); |
| sendNewStatusOrIgnore(OnObbStateChangeListener.ERROR_INTERNAL); |
| return; |
| } catch (InvalidKeySpecException e) { |
| Slog.e(TAG, "Invalid key spec when loading PBKDF2 algorithm", e); |
| sendNewStatusOrIgnore(OnObbStateChangeListener.ERROR_INTERNAL); |
| return; |
| } |
| } |
| |
| int rc = StorageResultCode.OperationSucceeded; |
| try { |
| mConnector.execute("obb", "mount", mObbState.voldPath, new SensitiveArg(hashedKey), |
| mObbState.ownerGid); |
| } catch (NativeDaemonConnectorException e) { |
| int code = e.getCode(); |
| if (code != VoldResponseCode.OpFailedStorageBusy) { |
| rc = StorageResultCode.OperationFailedInternalError; |
| } |
| } |
| |
| if (rc == StorageResultCode.OperationSucceeded) { |
| if (DEBUG_OBB) |
| Slog.d(TAG, "Successfully mounted OBB " + mObbState.voldPath); |
| |
| synchronized (mObbMounts) { |
| addObbStateLocked(mObbState); |
| } |
| |
| sendNewStatusOrIgnore(OnObbStateChangeListener.MOUNTED); |
| } else { |
| Slog.e(TAG, "Couldn't mount OBB file: " + rc); |
| |
| sendNewStatusOrIgnore(OnObbStateChangeListener.ERROR_COULD_NOT_MOUNT); |
| } |
| } |
| |
| @Override |
| public void handleError() { |
| sendNewStatusOrIgnore(OnObbStateChangeListener.ERROR_INTERNAL); |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder sb = new StringBuilder(); |
| sb.append("MountObbAction{"); |
| sb.append(mObbState); |
| sb.append('}'); |
| return sb.toString(); |
| } |
| } |
| |
| class UnmountObbAction extends ObbAction { |
| private final boolean mForceUnmount; |
| |
| UnmountObbAction(ObbState obbState, boolean force) { |
| super(obbState); |
| mForceUnmount = force; |
| } |
| |
| @Override |
| public void handleExecute() throws IOException { |
| waitForReady(); |
| warnOnNotMounted(); |
| |
| final ObbInfo obbInfo = getObbInfo(); |
| |
| final ObbState existingState; |
| synchronized (mObbMounts) { |
| existingState = mObbPathToStateMap.get(mObbState.rawPath); |
| } |
| |
| if (existingState == null) { |
| sendNewStatusOrIgnore(OnObbStateChangeListener.ERROR_NOT_MOUNTED); |
| return; |
| } |
| |
| if (existingState.ownerGid != mObbState.ownerGid) { |
| Slog.w(TAG, "Permission denied attempting to unmount OBB " + existingState.rawPath |
| + " (owned by GID " + existingState.ownerGid + ")"); |
| sendNewStatusOrIgnore(OnObbStateChangeListener.ERROR_PERMISSION_DENIED); |
| return; |
| } |
| |
| int rc = StorageResultCode.OperationSucceeded; |
| try { |
| final Command cmd = new Command("obb", "unmount", mObbState.voldPath); |
| if (mForceUnmount) { |
| cmd.appendArg("force"); |
| } |
| mConnector.execute(cmd); |
| } catch (NativeDaemonConnectorException e) { |
| int code = e.getCode(); |
| if (code == VoldResponseCode.OpFailedStorageBusy) { |
| rc = StorageResultCode.OperationFailedStorageBusy; |
| } else if (code == VoldResponseCode.OpFailedStorageNotFound) { |
| // If it's not mounted then we've already won. |
| rc = StorageResultCode.OperationSucceeded; |
| } else { |
| rc = StorageResultCode.OperationFailedInternalError; |
| } |
| } |
| |
| if (rc == StorageResultCode.OperationSucceeded) { |
| synchronized (mObbMounts) { |
| removeObbStateLocked(existingState); |
| } |
| |
| sendNewStatusOrIgnore(OnObbStateChangeListener.UNMOUNTED); |
| } else { |
| Slog.w(TAG, "Could not unmount OBB: " + existingState); |
| sendNewStatusOrIgnore(OnObbStateChangeListener.ERROR_COULD_NOT_UNMOUNT); |
| } |
| } |
| |
| @Override |
| public void handleError() { |
| sendNewStatusOrIgnore(OnObbStateChangeListener.ERROR_INTERNAL); |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder sb = new StringBuilder(); |
| sb.append("UnmountObbAction{"); |
| sb.append(mObbState); |
| sb.append(",force="); |
| sb.append(mForceUnmount); |
| sb.append('}'); |
| return sb.toString(); |
| } |
| } |
| |
| @VisibleForTesting |
| public static String buildObbPath(final String canonicalPath, int userId, boolean forVold) { |
| // TODO: allow caller to provide Environment for full testing |
| // TODO: extend to support OBB mounts on secondary external storage |
| |
| // Only adjust paths when storage is emulated |
| if (!Environment.isExternalStorageEmulated()) { |
| return canonicalPath; |
| } |
| |
| String path = canonicalPath.toString(); |
| |
| // First trim off any external storage prefix |
| final UserEnvironment userEnv = new UserEnvironment(userId); |
| |
| // /storage/emulated/0 |
| final String externalPath = userEnv.getExternalStorageDirectory().getAbsolutePath(); |
| // /storage/emulated_legacy |
| final String legacyExternalPath = Environment.getLegacyExternalStorageDirectory() |
| .getAbsolutePath(); |
| |
| if (path.startsWith(externalPath)) { |
| path = path.substring(externalPath.length() + 1); |
| } else if (path.startsWith(legacyExternalPath)) { |
| path = path.substring(legacyExternalPath.length() + 1); |
| } else { |
| return canonicalPath; |
| } |
| |
| // Handle special OBB paths on emulated storage |
| final String obbPath = "Android/obb"; |
| if (path.startsWith(obbPath)) { |
| path = path.substring(obbPath.length() + 1); |
| |
| final UserEnvironment ownerEnv = new UserEnvironment(UserHandle.USER_OWNER); |
| return new File(ownerEnv.buildExternalStorageAndroidObbDirs()[0], path) |
| .getAbsolutePath(); |
| } |
| |
| // Handle normal external storage paths |
| return new File(userEnv.getExternalStorageDirectory(), path).getAbsolutePath(); |
| } |
| |
| private static class Callbacks extends Handler { |
| private static final int MSG_STORAGE_STATE_CHANGED = 1; |
| private static final int MSG_VOLUME_STATE_CHANGED = 2; |
| private static final int MSG_VOLUME_METADATA_CHANGED = 3; |
| private static final int MSG_DISK_SCANNED = 4; |
| |
| private final RemoteCallbackList<IMountServiceListener> |
| mCallbacks = new RemoteCallbackList<>(); |
| |
| public Callbacks(Looper looper) { |
| super(looper); |
| } |
| |
| public void register(IMountServiceListener callback) { |
| mCallbacks.register(callback); |
| } |
| |
| public void unregister(IMountServiceListener callback) { |
| mCallbacks.unregister(callback); |
| } |
| |
| @Override |
| public void handleMessage(Message msg) { |
| final SomeArgs args = (SomeArgs) msg.obj; |
| final int n = mCallbacks.beginBroadcast(); |
| for (int i = 0; i < n; i++) { |
| final IMountServiceListener callback = mCallbacks.getBroadcastItem(i); |
| try { |
| invokeCallback(callback, msg.what, args); |
| } catch (RemoteException ignored) { |
| } |
| } |
| mCallbacks.finishBroadcast(); |
| args.recycle(); |
| } |
| |
| private void invokeCallback(IMountServiceListener callback, int what, SomeArgs args) |
| throws RemoteException { |
| switch (what) { |
| case MSG_STORAGE_STATE_CHANGED: { |
| callback.onStorageStateChanged((String) args.arg1, (String) args.arg2, |
| (String) args.arg3); |
| break; |
| } |
| case MSG_VOLUME_STATE_CHANGED: { |
| callback.onVolumeStateChanged((VolumeInfo) args.arg1, args.argi2, args.argi3); |
| break; |
| } |
| case MSG_VOLUME_METADATA_CHANGED: { |
| callback.onVolumeMetadataChanged((VolumeInfo) args.arg1); |
| break; |
| } |
| case MSG_DISK_SCANNED: { |
| callback.onDiskScanned((DiskInfo) args.arg1, args.argi2); |
| break; |
| } |
| } |
| } |
| |
| private void notifyStorageStateChanged(String path, String oldState, String newState) { |
| final SomeArgs args = SomeArgs.obtain(); |
| args.arg1 = path; |
| args.arg2 = oldState; |
| args.arg3 = newState; |
| obtainMessage(MSG_STORAGE_STATE_CHANGED, args).sendToTarget(); |
| } |
| |
| private void notifyVolumeStateChanged(VolumeInfo vol, int oldState, int newState) { |
| final SomeArgs args = SomeArgs.obtain(); |
| args.arg1 = vol; |
| args.argi2 = oldState; |
| args.argi3 = newState; |
| obtainMessage(MSG_VOLUME_STATE_CHANGED, args).sendToTarget(); |
| } |
| |
| private void notifyVolumeMetadataChanged(VolumeInfo vol) { |
| final SomeArgs args = SomeArgs.obtain(); |
| args.arg1 = vol; |
| obtainMessage(MSG_VOLUME_METADATA_CHANGED, args).sendToTarget(); |
| } |
| |
| private void notifyDiskScanned(DiskInfo disk, int volumeCount) { |
| final SomeArgs args = SomeArgs.obtain(); |
| args.arg1 = disk; |
| args.argi2 = volumeCount; |
| obtainMessage(MSG_DISK_SCANNED, args).sendToTarget(); |
| } |
| } |
| |
| @Override |
| protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) { |
| mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DUMP, TAG); |
| |
| for (String arg : args) { |
| if ("--clear-metadata".equals(arg)) { |
| synchronized (mLock) { |
| mMetadata.clear(); |
| writeMetadataLocked(); |
| } |
| } |
| } |
| |
| final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " ", 160); |
| synchronized (mLock) { |
| pw.println("Disks:"); |
| pw.increaseIndent(); |
| for (int i = 0; i < mDisks.size(); i++) { |
| final DiskInfo disk = mDisks.valueAt(i); |
| disk.dump(pw); |
| } |
| pw.decreaseIndent(); |
| |
| pw.println(); |
| pw.println("Volumes:"); |
| pw.increaseIndent(); |
| for (int i = 0; i < mVolumes.size(); i++) { |
| final VolumeInfo vol = mVolumes.valueAt(i); |
| if (VolumeInfo.ID_PRIVATE_INTERNAL.equals(vol.id)) continue; |
| vol.dump(pw); |
| } |
| pw.decreaseIndent(); |
| |
| pw.println(); |
| pw.println("Metadata:"); |
| pw.increaseIndent(); |
| for (int i = 0; i < mMetadata.size(); i++) { |
| final VolumeMetadata meta = mMetadata.valueAt(i); |
| meta.dump(pw); |
| } |
| pw.decreaseIndent(); |
| } |
| |
| synchronized (mObbMounts) { |
| pw.println(); |
| pw.println("mObbMounts:"); |
| pw.increaseIndent(); |
| final Iterator<Entry<IBinder, List<ObbState>>> binders = mObbMounts.entrySet() |
| .iterator(); |
| while (binders.hasNext()) { |
| Entry<IBinder, List<ObbState>> e = binders.next(); |
| pw.println(e.getKey() + ":"); |
| pw.increaseIndent(); |
| final List<ObbState> obbStates = e.getValue(); |
| for (final ObbState obbState : obbStates) { |
| pw.println(obbState); |
| } |
| pw.decreaseIndent(); |
| } |
| pw.decreaseIndent(); |
| |
| pw.println(); |
| pw.println("mObbPathToStateMap:"); |
| pw.increaseIndent(); |
| final Iterator<Entry<String, ObbState>> maps = mObbPathToStateMap.entrySet().iterator(); |
| while (maps.hasNext()) { |
| final Entry<String, ObbState> e = maps.next(); |
| pw.print(e.getKey()); |
| pw.print(" -> "); |
| pw.println(e.getValue()); |
| } |
| pw.decreaseIndent(); |
| } |
| |
| pw.println(); |
| pw.println("mConnection:"); |
| pw.increaseIndent(); |
| mConnector.dump(fd, pw, args); |
| pw.decreaseIndent(); |
| |
| SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); |
| |
| pw.println(); |
| pw.print("Last maintenance: "); |
| pw.println(sdf.format(new Date(mLastMaintenance))); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public void monitor() { |
| if (mConnector != null) { |
| mConnector.monitor(); |
| } |
| } |
| } |