| /* |
| * 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 android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.pm.PackageManager; |
| import android.content.res.Resources; |
| import android.net.Uri; |
| import android.os.storage.IMountService; |
| import android.os.storage.IMountServiceListener; |
| import android.os.storage.StorageResultCode; |
| import android.os.RemoteException; |
| import android.os.IBinder; |
| import android.os.Environment; |
| import android.os.ServiceManager; |
| import android.os.SystemClock; |
| import android.os.SystemProperties; |
| import android.os.UEventObserver; |
| import android.os.Handler; |
| import android.text.TextUtils; |
| import android.util.Log; |
| import java.util.ArrayList; |
| import java.util.HashSet; |
| |
| import java.io.File; |
| import java.io.FileReader; |
| |
| /** |
| * MountService implements back-end services for platform storage |
| * management. |
| * @hide - Applications should use android.os.storage.StorageManager |
| * to access the MountService. |
| */ |
| class MountService extends IMountService.Stub |
| implements INativeDaemonConnectorCallbacks { |
| private static final boolean LOCAL_LOGD = false; |
| |
| private static final String TAG = "MountService"; |
| |
| /* |
| * Internal vold volume state constants |
| */ |
| class VolumeState { |
| public static final int Init = -1; |
| public static final int NoMedia = 0; |
| public static final int Idle = 1; |
| public static final int Pending = 2; |
| public static final int Checking = 3; |
| public static final int Mounted = 4; |
| public static final int Unmounting = 5; |
| public static final int Formatting = 6; |
| public static final int Shared = 7; |
| public static final int SharedMnt = 8; |
| } |
| |
| /* |
| * 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; |
| |
| /* |
| * 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 OpFailedVolBusy = 405; |
| |
| /* |
| * 600 series - Unsolicited broadcasts. |
| */ |
| public static final int VolumeStateChange = 605; |
| public static final int ShareAvailabilityChange = 620; |
| public static final int VolumeDiskInserted = 630; |
| public static final int VolumeDiskRemoved = 631; |
| public static final int VolumeBadRemoval = 632; |
| } |
| |
| private Context mContext; |
| private NativeDaemonConnector mConnector; |
| private String mLegacyState = Environment.MEDIA_REMOVED; |
| private PackageManagerService mPms; |
| private boolean mUmsEnabling; |
| private ArrayList<MountServiceBinderListener> mListeners; |
| private boolean mBooted; |
| private boolean mReady; |
| |
| /** |
| * Private hash of currently mounted secure containers. |
| */ |
| private HashSet<String> mAsecMountSet = new HashSet<String>(); |
| |
| private void waitForReady() { |
| while (mReady == false) { |
| for (int retries = 5; retries > 0; retries--) { |
| if (mReady) { |
| return; |
| } |
| SystemClock.sleep(1000); |
| } |
| Log.w(TAG, "Waiting too long for mReady!"); |
| } |
| } |
| |
| private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { |
| public void onReceive(Context context, Intent intent) { |
| String action = intent.getAction(); |
| |
| if (action.equals(Intent.ACTION_BOOT_COMPLETED)) { |
| mBooted = true; |
| |
| String path = Environment.getExternalStorageDirectory().getPath(); |
| if (getVolumeState(path).equals(Environment.MEDIA_UNMOUNTED)) { |
| int rc = doMountVolume(path); |
| if (rc != StorageResultCode.OperationSucceeded) { |
| Log.e(TAG, String.format("Boot-time mount failed (%d)", rc)); |
| } |
| } |
| } |
| } |
| }; |
| |
| private final class MountServiceBinderListener implements IBinder.DeathRecipient { |
| final IMountServiceListener mListener; |
| |
| MountServiceBinderListener(IMountServiceListener listener) { |
| mListener = listener; |
| |
| } |
| |
| public void binderDied() { |
| if (LOCAL_LOGD) Log.d(TAG, "An IMountServiceListener has died!"); |
| synchronized(mListeners) { |
| mListeners.remove(this); |
| mListener.asBinder().unlinkToDeath(this, 0); |
| } |
| } |
| } |
| |
| private int doShareUnshareVolume(String path, String method, boolean enable) { |
| validatePermission(android.Manifest.permission.MOUNT_UNMOUNT_FILESYSTEMS); |
| |
| // TODO: Add support for multiple share methods |
| if (!method.equals("ums")) { |
| throw new IllegalArgumentException(String.format("Method %s not supported", method)); |
| } |
| |
| /* |
| * If the volume is mounted and we're enabling then unmount it |
| */ |
| String vs = getVolumeState(path); |
| if (enable && vs.equals(Environment.MEDIA_MOUNTED)) { |
| mUmsEnabling = enable; // Override for isUsbMassStorageEnabled() |
| int rc = doUnmountVolume(path); |
| mUmsEnabling = false; // Clear override |
| if (rc != StorageResultCode.OperationSucceeded) { |
| Log.e(TAG, String.format("Failed to unmount before enabling UMS (%d)", rc)); |
| return rc; |
| } |
| } |
| |
| try { |
| mConnector.doCommand(String.format( |
| "volume %sshare %s %s", (enable ? "" : "un"), path, method)); |
| } catch (NativeDaemonConnectorException e) { |
| Log.e(TAG, "Failed to share/unshare", e); |
| return StorageResultCode.OperationFailedInternalError; |
| } |
| |
| /* |
| * If we disabled UMS then mount the volume |
| */ |
| if (!enable) { |
| if (doMountVolume(path) != StorageResultCode.OperationSucceeded) { |
| Log.e(TAG, String.format( |
| "Failed to remount %s after disabling share method %s", path, method)); |
| /* |
| * Even though the mount failed, the unshare didn't so don't indicate an error. |
| * The mountVolume() call will have set the storage state and sent the necessary |
| * broadcasts. |
| */ |
| } |
| } |
| |
| return StorageResultCode.OperationSucceeded; |
| } |
| |
| private void updatePublicVolumeState(String path, String state) { |
| if (!path.equals(Environment.getExternalStorageDirectory().getPath())) { |
| Log.w(TAG, "Multiple volumes not currently supported"); |
| return; |
| } |
| |
| if (mLegacyState.equals(state)) { |
| Log.w(TAG, String.format("Duplicate state transition (%s -> %s)", mLegacyState, state)); |
| return; |
| } |
| |
| String oldState = mLegacyState; |
| mLegacyState = state; |
| |
| synchronized (mListeners) { |
| for (int i = mListeners.size() -1; i >= 0; i--) { |
| MountServiceBinderListener bl = mListeners.get(i); |
| try { |
| bl.mListener.onStorageStateChanged(path, oldState, state); |
| } catch (RemoteException rex) { |
| Log.e(TAG, "Listener dead"); |
| mListeners.remove(i); |
| } catch (Exception ex) { |
| Log.e(TAG, "Listener failed", ex); |
| } |
| } |
| } |
| } |
| |
| /** |
| * |
| * Callback from NativeDaemonConnector |
| */ |
| public void onDaemonConnected() { |
| /* |
| * Since we'll be calling back into the NativeDaemonConnector, |
| * we need to do our work in a new thread. |
| */ |
| new Thread() { |
| public void run() { |
| /** |
| * Determine media state and UMS detection status |
| */ |
| String path = Environment.getExternalStorageDirectory().getPath(); |
| String state = Environment.MEDIA_REMOVED; |
| |
| try { |
| String[] vols = mConnector.doListCommand( |
| "volume list", VoldResponseCode.VolumeListResult); |
| for (String volstr : vols) { |
| String[] tok = volstr.split(" "); |
| // FMT: <label> <mountpoint> <state> |
| if (!tok[1].equals(path)) { |
| Log.w(TAG, String.format( |
| "Skipping unknown volume '%s'",tok[1])); |
| continue; |
| } |
| int st = Integer.parseInt(tok[2]); |
| if (st == VolumeState.NoMedia) { |
| state = Environment.MEDIA_REMOVED; |
| } else if (st == VolumeState.Idle) { |
| state = Environment.MEDIA_UNMOUNTED; |
| } else if (st == VolumeState.Mounted) { |
| state = Environment.MEDIA_MOUNTED; |
| Log.i(TAG, "Media already mounted on daemon connection"); |
| } else if (st == VolumeState.Shared) { |
| state = Environment.MEDIA_SHARED; |
| Log.i(TAG, "Media shared on daemon connection"); |
| } else { |
| throw new Exception(String.format("Unexpected state %d", st)); |
| } |
| } |
| if (state != null) { |
| updatePublicVolumeState(path, state); |
| } |
| } catch (Exception e) { |
| Log.e(TAG, "Error processing initial volume state", e); |
| updatePublicVolumeState(path, Environment.MEDIA_REMOVED); |
| } |
| |
| try { |
| boolean avail = doGetShareMethodAvailable("ums"); |
| notifyShareAvailabilityChange("ums", avail); |
| } catch (Exception ex) { |
| Log.w(TAG, "Failed to get share availability"); |
| } |
| /* |
| * Now that we've done our initialization, release |
| * the hounds! |
| */ |
| mReady = true; |
| } |
| }.start(); |
| } |
| |
| /** |
| * Callback from NativeDaemonConnector |
| */ |
| public boolean onEvent(int code, String raw, String[] cooked) { |
| Intent in = null; |
| |
| if (code == VoldResponseCode.VolumeStateChange) { |
| /* |
| * One of the volumes we're managing has changed state. |
| * Format: "NNN Volume <label> <path> state changed |
| * from <old_#> (<old_str>) to <new_#> (<new_str>)" |
| */ |
| notifyVolumeStateChange( |
| cooked[2], cooked[3], Integer.parseInt(cooked[7]), |
| Integer.parseInt(cooked[10])); |
| } else if (code == VoldResponseCode.ShareAvailabilityChange) { |
| // FMT: NNN Share method <method> now <available|unavailable> |
| boolean avail = false; |
| if (cooked[5].equals("available")) { |
| avail = true; |
| } |
| notifyShareAvailabilityChange(cooked[3], avail); |
| } else if ((code == VoldResponseCode.VolumeDiskInserted) || |
| (code == VoldResponseCode.VolumeDiskRemoved) || |
| (code == VoldResponseCode.VolumeBadRemoval)) { |
| // FMT: NNN Volume <label> <mountpoint> disk inserted (<major>:<minor>) |
| // FMT: NNN Volume <label> <mountpoint> disk removed (<major>:<minor>) |
| // FMT: NNN Volume <label> <mountpoint> bad removal (<major>:<minor>) |
| final String label = cooked[2]; |
| final String path = cooked[3]; |
| int major = -1; |
| int minor = -1; |
| |
| try { |
| String devComp = cooked[6].substring(1, cooked[6].length() -1); |
| String[] devTok = devComp.split(":"); |
| major = Integer.parseInt(devTok[0]); |
| minor = Integer.parseInt(devTok[1]); |
| } catch (Exception ex) { |
| Log.e(TAG, "Failed to parse major/minor", ex); |
| } |
| |
| if (code == VoldResponseCode.VolumeDiskInserted) { |
| new Thread() { |
| public void run() { |
| try { |
| int rc; |
| if ((rc = doMountVolume(path)) != StorageResultCode.OperationSucceeded) { |
| Log.w(TAG, String.format("Insertion mount failed (%d)", rc)); |
| } |
| } catch (Exception ex) { |
| Log.w(TAG, "Failed to mount media on insertion", ex); |
| } |
| } |
| }.start(); |
| } else if (code == VoldResponseCode.VolumeDiskRemoved) { |
| /* |
| * This event gets trumped if we're already in BAD_REMOVAL state |
| */ |
| if (getVolumeState(path).equals(Environment.MEDIA_BAD_REMOVAL)) { |
| return true; |
| } |
| /* Send the media unmounted event first */ |
| updatePublicVolumeState(path, Environment.MEDIA_UNMOUNTED); |
| in = new Intent(Intent.ACTION_MEDIA_UNMOUNTED, Uri.parse("file://" + path)); |
| mContext.sendBroadcast(in); |
| |
| updatePublicVolumeState(path, Environment.MEDIA_REMOVED); |
| in = new Intent(Intent.ACTION_MEDIA_REMOVED, Uri.parse("file://" + path)); |
| } else if (code == VoldResponseCode.VolumeBadRemoval) { |
| /* Send the media unmounted event first */ |
| updatePublicVolumeState(path, Environment.MEDIA_UNMOUNTED); |
| in = new Intent(Intent.ACTION_MEDIA_UNMOUNTED, Uri.parse("file://" + path)); |
| mContext.sendBroadcast(in); |
| |
| updatePublicVolumeState(path, Environment.MEDIA_BAD_REMOVAL); |
| in = new Intent(Intent.ACTION_MEDIA_BAD_REMOVAL, Uri.parse("file://" + path)); |
| } else { |
| Log.e(TAG, String.format("Unknown code {%d}", code)); |
| } |
| } else { |
| return false; |
| } |
| |
| if (in != null) { |
| mContext.sendBroadcast(in); |
| } |
| return true; |
| } |
| |
| private void notifyVolumeStateChange(String label, String path, int oldState, int newState) { |
| String vs = getVolumeState(path); |
| |
| Intent in = null; |
| |
| if (newState == VolumeState.Init) { |
| } else if (newState == VolumeState.NoMedia) { |
| // NoMedia is handled via Disk Remove events |
| } else if (newState == VolumeState.Idle) { |
| /* |
| * Don't notify if we're in BAD_REMOVAL, NOFS, UNMOUNTABLE, or |
| * if we're in the process of enabling UMS |
| */ |
| if (!vs.equals( |
| Environment.MEDIA_BAD_REMOVAL) && !vs.equals( |
| Environment.MEDIA_NOFS) && !vs.equals( |
| Environment.MEDIA_UNMOUNTABLE) && !mUmsEnabling) { |
| updatePublicVolumeState(path, Environment.MEDIA_UNMOUNTED); |
| in = new Intent(Intent.ACTION_MEDIA_UNMOUNTED, Uri.parse("file://" + path)); |
| } |
| } else if (newState == VolumeState.Pending) { |
| } else if (newState == VolumeState.Checking) { |
| updatePublicVolumeState(path, Environment.MEDIA_CHECKING); |
| in = new Intent(Intent.ACTION_MEDIA_CHECKING, Uri.parse("file://" + path)); |
| } else if (newState == VolumeState.Mounted) { |
| updatePublicVolumeState(path, Environment.MEDIA_MOUNTED); |
| // Update media status on PackageManagerService to mount packages on sdcard |
| mPms.updateExternalMediaStatus(true); |
| in = new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://" + path)); |
| in.putExtra("read-only", false); |
| } else if (newState == VolumeState.Unmounting) { |
| mPms.updateExternalMediaStatus(false); |
| in = new Intent(Intent.ACTION_MEDIA_EJECT, Uri.parse("file://" + path)); |
| } else if (newState == VolumeState.Formatting) { |
| } else if (newState == VolumeState.Shared) { |
| /* Send the media unmounted event first */ |
| updatePublicVolumeState(path, Environment.MEDIA_UNMOUNTED); |
| in = new Intent(Intent.ACTION_MEDIA_UNMOUNTED, Uri.parse("file://" + path)); |
| mContext.sendBroadcast(in); |
| |
| updatePublicVolumeState(path, Environment.MEDIA_SHARED); |
| in = new Intent(Intent.ACTION_MEDIA_SHARED, Uri.parse("file://" + path)); |
| } else if (newState == VolumeState.SharedMnt) { |
| Log.e(TAG, "Live shared mounts not supported yet!"); |
| return; |
| } else { |
| Log.e(TAG, "Unhandled VolumeState {" + newState + "}"); |
| } |
| |
| if (in != null) { |
| mContext.sendBroadcast(in); |
| } |
| } |
| |
| private boolean doGetShareMethodAvailable(String method) { |
| ArrayList<String> rsp = mConnector.doCommand("share status " + method); |
| |
| for (String line : rsp) { |
| String []tok = line.split(" "); |
| int code; |
| try { |
| code = Integer.parseInt(tok[0]); |
| } catch (NumberFormatException nfe) { |
| Log.e(TAG, String.format("Error parsing code %s", tok[0])); |
| return false; |
| } |
| if (code == VoldResponseCode.ShareStatusResult) { |
| if (tok[2].equals("available")) |
| return true; |
| return false; |
| } else { |
| Log.e(TAG, String.format("Unexpected response code %d", code)); |
| return false; |
| } |
| } |
| Log.e(TAG, "Got an empty response"); |
| return false; |
| } |
| |
| private int doMountVolume(String path) { |
| int rc = StorageResultCode.OperationSucceeded; |
| |
| try { |
| mConnector.doCommand(String.format("volume mount %s", path)); |
| } catch (NativeDaemonConnectorException e) { |
| /* |
| * Mount failed for some reason |
| */ |
| Intent in = null; |
| int code = e.getCode(); |
| if (code == VoldResponseCode.OpFailedNoMedia) { |
| /* |
| * Attempt to mount but no media inserted |
| */ |
| rc = StorageResultCode.OperationFailedNoMedia; |
| } else if (code == VoldResponseCode.OpFailedMediaBlank) { |
| /* |
| * Media is blank or does not contain a supported filesystem |
| */ |
| updatePublicVolumeState(path, Environment.MEDIA_NOFS); |
| in = new Intent(Intent.ACTION_MEDIA_NOFS, Uri.parse("file://" + path)); |
| rc = StorageResultCode.OperationFailedMediaBlank; |
| } else if (code == VoldResponseCode.OpFailedMediaCorrupt) { |
| /* |
| * Volume consistency check failed |
| */ |
| updatePublicVolumeState(path, Environment.MEDIA_UNMOUNTABLE); |
| in = new Intent(Intent.ACTION_MEDIA_UNMOUNTABLE, Uri.parse("file://" + path)); |
| rc = StorageResultCode.OperationFailedMediaCorrupt; |
| } else { |
| rc = StorageResultCode.OperationFailedInternalError; |
| } |
| |
| /* |
| * Send broadcast intent (if required for the failure) |
| */ |
| if (in != null) { |
| mContext.sendBroadcast(in); |
| } |
| } |
| |
| return rc; |
| } |
| |
| private int doUnmountVolume(String path) { |
| if (!getVolumeState(path).equals(Environment.MEDIA_MOUNTED)) { |
| return VoldResponseCode.OpFailedVolNotMounted; |
| } |
| |
| // Notify PackageManager of potential media removal and deal with |
| // return code later on. The caller of this api should be aware or have been |
| // notified that the applications installed on the media will be killed. |
| mPms.updateExternalMediaStatus(false); |
| try { |
| mConnector.doCommand(String.format("volume unmount %s", path)); |
| return StorageResultCode.OperationSucceeded; |
| } catch (NativeDaemonConnectorException e) { |
| // Don't worry about mismatch in PackageManager since the |
| // call back will handle the status changes any way. |
| int code = e.getCode(); |
| if (code == VoldResponseCode.OpFailedVolNotMounted) { |
| return StorageResultCode.OperationFailedStorageNotMounted; |
| } else { |
| return StorageResultCode.OperationFailedInternalError; |
| } |
| } |
| } |
| |
| private int doFormatVolume(String path) { |
| try { |
| String cmd = String.format("volume format %s", path); |
| mConnector.doCommand(cmd); |
| return StorageResultCode.OperationSucceeded; |
| } catch (NativeDaemonConnectorException e) { |
| int code = e.getCode(); |
| if (code == VoldResponseCode.OpFailedNoMedia) { |
| return StorageResultCode.OperationFailedNoMedia; |
| } else if (code == VoldResponseCode.OpFailedMediaCorrupt) { |
| return StorageResultCode.OperationFailedMediaCorrupt; |
| } else { |
| return StorageResultCode.OperationFailedInternalError; |
| } |
| } |
| } |
| |
| private boolean doGetVolumeShared(String path, String method) { |
| String cmd = String.format("volume shared %s %s", path, method); |
| ArrayList<String> rsp = mConnector.doCommand(cmd); |
| |
| for (String line : rsp) { |
| String []tok = line.split(" "); |
| int code; |
| try { |
| code = Integer.parseInt(tok[0]); |
| } catch (NumberFormatException nfe) { |
| Log.e(TAG, String.format("Error parsing code %s", tok[0])); |
| return false; |
| } |
| if (code == VoldResponseCode.ShareEnabledResult) { |
| if (tok[2].equals("enabled")) |
| return true; |
| return false; |
| } else { |
| Log.e(TAG, String.format("Unexpected response code %d", code)); |
| return false; |
| } |
| } |
| Log.e(TAG, "Got an empty response"); |
| return false; |
| } |
| |
| private void notifyShareAvailabilityChange(String method, final boolean avail) { |
| if (!method.equals("ums")) { |
| Log.w(TAG, "Ignoring unsupported share method {" + method + "}"); |
| return; |
| } |
| |
| synchronized (mListeners) { |
| for (int i = mListeners.size() -1; i >= 0; i--) { |
| MountServiceBinderListener bl = mListeners.get(i); |
| try { |
| bl.mListener.onUsbMassStorageConnectionChanged(avail); |
| } catch (RemoteException rex) { |
| Log.e(TAG, "Listener dead"); |
| mListeners.remove(i); |
| } catch (Exception ex) { |
| Log.e(TAG, "Listener failed", ex); |
| } |
| } |
| } |
| |
| if (mBooted == true) { |
| Intent intent; |
| if (avail) { |
| intent = new Intent(Intent.ACTION_UMS_CONNECTED); |
| } else { |
| intent = new Intent(Intent.ACTION_UMS_DISCONNECTED); |
| } |
| mContext.sendBroadcast(intent); |
| } |
| } |
| |
| private void validatePermission(String perm) { |
| if (mContext.checkCallingOrSelfPermission(perm) != PackageManager.PERMISSION_GRANTED) { |
| throw new SecurityException(String.format("Requires %s permission", perm)); |
| } |
| } |
| |
| /** |
| * Constructs a new MountService instance |
| * |
| * @param context Binder context for this service |
| */ |
| public MountService(Context context) { |
| mContext = context; |
| |
| /* |
| * Vold does not run in the simulator, so fake out a mounted |
| * event to trigger MediaScanner |
| */ |
| if ("simulator".equals(SystemProperties.get("ro.product.device"))) { |
| updatePublicVolumeState("/sdcard", Environment.MEDIA_MOUNTED); |
| return; |
| } |
| |
| // XXX: This will go away soon in favor of IMountServiceObserver |
| mPms = (PackageManagerService) ServiceManager.getService("package"); |
| |
| mContext.registerReceiver(mBroadcastReceiver, |
| new IntentFilter(Intent.ACTION_BOOT_COMPLETED), null, null); |
| |
| mListeners = new ArrayList<MountServiceBinderListener>(); |
| |
| mConnector = new NativeDaemonConnector(this, "vold", 10, "VoldConnector"); |
| mReady = false; |
| Thread thread = new Thread(mConnector, NativeDaemonConnector.class.getName()); |
| thread.start(); |
| } |
| |
| /** |
| * Exposed API calls below here |
| */ |
| |
| public void registerListener(IMountServiceListener listener) { |
| synchronized (mListeners) { |
| MountServiceBinderListener bl = new MountServiceBinderListener(listener); |
| try { |
| listener.asBinder().linkToDeath(bl, 0); |
| mListeners.add(bl); |
| } catch (RemoteException rex) { |
| Log.e(TAG, "Failed to link to listener death"); |
| } |
| } |
| } |
| |
| public void unregisterListener(IMountServiceListener listener) { |
| synchronized (mListeners) { |
| for(MountServiceBinderListener bl : mListeners) { |
| if (bl.mListener == listener) { |
| mListeners.remove(mListeners.indexOf(bl)); |
| return; |
| } |
| } |
| } |
| } |
| |
| public void shutdown() { |
| validatePermission(android.Manifest.permission.SHUTDOWN); |
| |
| Log.i(TAG, "Shutting down"); |
| |
| String path = Environment.getExternalStorageDirectory().getPath(); |
| String state = getVolumeState(path); |
| |
| if (state.equals(Environment.MEDIA_SHARED)) { |
| /* |
| * If the media is currently shared, unshare it. |
| * XXX: This is still dangerous!. We should not |
| * be rebooting at *all* if UMS is enabled, since |
| * the UMS host could have dirty FAT cache entries |
| * yet to flush. |
| */ |
| if (setUsbMassStorageEnabled(false) != StorageResultCode.OperationSucceeded) { |
| Log.e(TAG, "UMS disable on shutdown failed"); |
| } |
| } else if (state.equals(Environment.MEDIA_CHECKING)) { |
| /* |
| * If the media is being checked, then we need to wait for |
| * it to complete before being able to proceed. |
| */ |
| // XXX: @hackbod - Should we disable the ANR timer here? |
| int retries = 30; |
| while (state.equals(Environment.MEDIA_CHECKING) && (retries-- >=0)) { |
| try { |
| Thread.sleep(1000); |
| } catch (InterruptedException iex) { |
| Log.e(TAG, "Interrupted while waiting for media", iex); |
| break; |
| } |
| state = Environment.getExternalStorageState(); |
| } |
| if (retries == 0) { |
| Log.e(TAG, "Timed out waiting for media to check"); |
| } |
| } |
| |
| if (state.equals(Environment.MEDIA_MOUNTED)) { |
| /* |
| * If the media is mounted, then gracefully unmount it. |
| */ |
| if (doUnmountVolume(path) != StorageResultCode.OperationSucceeded) { |
| Log.e(TAG, "Failed to unmount media for shutdown"); |
| } |
| } |
| } |
| |
| public boolean isUsbMassStorageConnected() { |
| waitForReady(); |
| |
| if (mUmsEnabling) { |
| return true; |
| } |
| return doGetShareMethodAvailable("ums"); |
| } |
| |
| public int setUsbMassStorageEnabled(boolean enable) { |
| waitForReady(); |
| |
| return doShareUnshareVolume(Environment.getExternalStorageDirectory().getPath(), "ums", enable); |
| } |
| |
| public boolean isUsbMassStorageEnabled() { |
| waitForReady(); |
| return doGetVolumeShared(Environment.getExternalStorageDirectory().getPath(), "ums"); |
| } |
| |
| /** |
| * @return state of the volume at the specified mount point |
| */ |
| public String getVolumeState(String mountPoint) { |
| /* |
| * XXX: Until we have multiple volume discovery, just hardwire |
| * this to /sdcard |
| */ |
| if (!mountPoint.equals(Environment.getExternalStorageDirectory().getPath())) { |
| Log.w(TAG, "getVolumeState(" + mountPoint + "): Unknown volume"); |
| throw new IllegalArgumentException(); |
| } |
| |
| return mLegacyState; |
| } |
| |
| public int mountVolume(String path) { |
| validatePermission(android.Manifest.permission.MOUNT_UNMOUNT_FILESYSTEMS); |
| |
| waitForReady(); |
| return doMountVolume(path); |
| } |
| |
| public int unmountVolume(String path) { |
| validatePermission(android.Manifest.permission.MOUNT_UNMOUNT_FILESYSTEMS); |
| waitForReady(); |
| |
| return doUnmountVolume(path); |
| } |
| |
| public int formatVolume(String path) { |
| validatePermission(android.Manifest.permission.MOUNT_FORMAT_FILESYSTEMS); |
| waitForReady(); |
| |
| return doFormatVolume(path); |
| } |
| |
| private void warnOnNotMounted() { |
| if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) { |
| Log.w(TAG, "getSecureContainerList() called when storage not mounted"); |
| } |
| } |
| |
| public String[] getSecureContainerList() { |
| validatePermission(android.Manifest.permission.ASEC_ACCESS); |
| waitForReady(); |
| warnOnNotMounted(); |
| |
| try { |
| return mConnector.doListCommand("asec list", VoldResponseCode.AsecListResult); |
| } catch (NativeDaemonConnectorException e) { |
| return new String[0]; |
| } |
| } |
| |
| public int createSecureContainer(String id, int sizeMb, String fstype, |
| String key, int ownerUid) { |
| validatePermission(android.Manifest.permission.ASEC_CREATE); |
| waitForReady(); |
| warnOnNotMounted(); |
| |
| int rc = StorageResultCode.OperationSucceeded; |
| String cmd = String.format("asec create %s %d %s %s %d", id, sizeMb, fstype, key, ownerUid); |
| try { |
| mConnector.doCommand(cmd); |
| } catch (NativeDaemonConnectorException e) { |
| rc = StorageResultCode.OperationFailedInternalError; |
| } |
| |
| if (rc == StorageResultCode.OperationSucceeded) { |
| synchronized (mAsecMountSet) { |
| mAsecMountSet.add(id); |
| } |
| } |
| return rc; |
| } |
| |
| public int finalizeSecureContainer(String id) { |
| validatePermission(android.Manifest.permission.ASEC_CREATE); |
| warnOnNotMounted(); |
| |
| int rc = StorageResultCode.OperationSucceeded; |
| try { |
| mConnector.doCommand(String.format("asec finalize %s", id)); |
| /* |
| * Finalization does a remount, so no need |
| * to update mAsecMountSet |
| */ |
| } catch (NativeDaemonConnectorException e) { |
| rc = StorageResultCode.OperationFailedInternalError; |
| } |
| return rc; |
| } |
| |
| public int destroySecureContainer(String id) { |
| validatePermission(android.Manifest.permission.ASEC_DESTROY); |
| waitForReady(); |
| warnOnNotMounted(); |
| |
| int rc = StorageResultCode.OperationSucceeded; |
| try { |
| mConnector.doCommand(String.format("asec destroy %s", id)); |
| } catch (NativeDaemonConnectorException e) { |
| 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) { |
| validatePermission(android.Manifest.permission.ASEC_MOUNT_UNMOUNT); |
| waitForReady(); |
| warnOnNotMounted(); |
| |
| synchronized (mAsecMountSet) { |
| if (mAsecMountSet.contains(id)) { |
| return StorageResultCode.OperationFailedStorageMounted; |
| } |
| } |
| |
| int rc = StorageResultCode.OperationSucceeded; |
| String cmd = String.format("asec mount %s %s %d", id, key, ownerUid); |
| try { |
| mConnector.doCommand(cmd); |
| } catch (NativeDaemonConnectorException e) { |
| rc = StorageResultCode.OperationFailedInternalError; |
| } |
| |
| if (rc == StorageResultCode.OperationSucceeded) { |
| synchronized (mAsecMountSet) { |
| mAsecMountSet.add(id); |
| } |
| } |
| return rc; |
| } |
| |
| public int unmountSecureContainer(String id) { |
| validatePermission(android.Manifest.permission.ASEC_MOUNT_UNMOUNT); |
| waitForReady(); |
| warnOnNotMounted(); |
| |
| synchronized (mAsecMountSet) { |
| if (!mAsecMountSet.contains(id)) { |
| return StorageResultCode.OperationFailedStorageNotMounted; |
| } |
| } |
| |
| int rc = StorageResultCode.OperationSucceeded; |
| String cmd = String.format("asec unmount %s", id); |
| try { |
| mConnector.doCommand(cmd); |
| } catch (NativeDaemonConnectorException e) { |
| rc = StorageResultCode.OperationFailedInternalError; |
| } |
| |
| if (rc == StorageResultCode.OperationSucceeded) { |
| synchronized (mAsecMountSet) { |
| mAsecMountSet.remove(id); |
| } |
| } |
| return rc; |
| } |
| |
| public boolean isSecureContainerMounted(String id) { |
| validatePermission(android.Manifest.permission.ASEC_ACCESS); |
| waitForReady(); |
| warnOnNotMounted(); |
| |
| synchronized (mAsecMountSet) { |
| return mAsecMountSet.contains(id); |
| } |
| } |
| |
| public int renameSecureContainer(String oldId, String newId) { |
| validatePermission(android.Manifest.permission.ASEC_RENAME); |
| waitForReady(); |
| warnOnNotMounted(); |
| |
| synchronized (mAsecMountSet) { |
| if (mAsecMountSet.contains(oldId)) { |
| return StorageResultCode.OperationFailedStorageMounted; |
| } |
| } |
| |
| int rc = StorageResultCode.OperationSucceeded; |
| String cmd = String.format("asec rename %s %s", oldId, newId); |
| try { |
| mConnector.doCommand(cmd); |
| } catch (NativeDaemonConnectorException e) { |
| rc = StorageResultCode.OperationFailedInternalError; |
| } |
| |
| return rc; |
| } |
| |
| public String getSecureContainerPath(String id) { |
| validatePermission(android.Manifest.permission.ASEC_ACCESS); |
| waitForReady(); |
| warnOnNotMounted(); |
| |
| ArrayList<String> rsp = mConnector.doCommand("asec path " + id); |
| |
| for (String line : rsp) { |
| String []tok = line.split(" "); |
| int code = Integer.parseInt(tok[0]); |
| if (code == VoldResponseCode.AsecPathResult) { |
| return tok[1]; |
| } else { |
| Log.e(TAG, String.format("Unexpected response code %d", code)); |
| return ""; |
| } |
| } |
| |
| Log.e(TAG, "Got an empty response"); |
| return ""; |
| } |
| } |
| |
