diff options
Diffstat (limited to 'core/java')
3 files changed, 241 insertions, 0 deletions
diff --git a/core/java/android/app/ActivityManager.java b/core/java/android/app/ActivityManager.java index 4736404..5ae8a1f 100644 --- a/core/java/android/app/ActivityManager.java +++ b/core/java/android/app/ActivityManager.java @@ -763,6 +763,13 @@ public class ActivityManager { public static final int FLAG_CANT_SAVE_STATE = 1<<0; /** + * Constant for {@link #flags}: this process is associated with a + * persistent system app. + * @hide + */ + public static final int FLAG_PERSISTENT = 1<<1; + + /** * Flags of information. May be any of * {@link #FLAG_CANT_SAVE_STATE}. * @hide diff --git a/core/java/android/app/admin/DevicePolicyManager.java b/core/java/android/app/admin/DevicePolicyManager.java index 2b7e427..ca27010 100644 --- a/core/java/android/app/admin/DevicePolicyManager.java +++ b/core/java/android/app/admin/DevicePolicyManager.java @@ -896,6 +896,12 @@ public class DevicePolicyManager { } /** + * Flag for {@link #wipeData(int)}: also erase the device's external + * storage. + */ + public static final int WIPE_EXTERNAL_STORAGE = 0x0001; + + /** * Ask the user date be wiped. This will cause the device to reboot, * erasing all user data while next booting up. External storage such * as SD cards will not be erased. diff --git a/core/java/com/android/internal/os/storage/ExternalStorageFormatter.java b/core/java/com/android/internal/os/storage/ExternalStorageFormatter.java new file mode 100644 index 0000000..965022e --- /dev/null +++ b/core/java/com/android/internal/os/storage/ExternalStorageFormatter.java @@ -0,0 +1,228 @@ +package com.android.internal.os.storage; + +import android.app.ProgressDialog; +import android.app.Service; +import android.content.ComponentName; +import android.content.Context; +import android.content.DialogInterface; +import android.content.Intent; +import android.os.Environment; +import android.os.IBinder; +import android.os.PowerManager; +import android.os.RemoteException; +import android.os.ServiceManager; +import android.os.storage.IMountService; +import android.os.storage.StorageEventListener; +import android.os.storage.StorageManager; +import android.util.Log; +import android.view.WindowManager; +import android.widget.Toast; + +import com.android.internal.R; + +/** + * Takes care of unmounting and formatting external storage. + */ +public class ExternalStorageFormatter extends Service + implements DialogInterface.OnCancelListener { + static final String TAG = "ExternalStorageFormatter"; + + public static final String FORMAT_ONLY = "com.android.internal.os.storage.FORMAT_ONLY"; + public static final String FORMAT_AND_FACTORY_RESET = "com.android.internal.os.storage.FORMAT_AND_FACTORY_RESET"; + + public static final String EXTRA_ALWAYS_RESET = "always_reset"; + + public static final ComponentName COMPONENT_NAME + = new ComponentName("android", ExternalStorageFormatter.class.getName()); + + // Access using getMountService() + private IMountService mMountService = null; + + private StorageManager mStorageManager = null; + + private PowerManager.WakeLock mWakeLock; + + private ProgressDialog mProgressDialog = null; + + private boolean mFactoryReset = false; + private boolean mAlwaysReset = false; + + StorageEventListener mStorageListener = new StorageEventListener() { + @Override + public void onStorageStateChanged(String path, String oldState, String newState) { + Log.i(TAG, "Received storage state changed notification that " + + path + " changed state from " + oldState + + " to " + newState); + updateProgressState(); + } + }; + + @Override + public void onCreate() { + super.onCreate(); + + if (mStorageManager == null) { + mStorageManager = (StorageManager) getSystemService(Context.STORAGE_SERVICE); + mStorageManager.registerListener(mStorageListener); + } + + mWakeLock = ((PowerManager)getSystemService(Context.POWER_SERVICE)) + .newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "ExternalStorageFormatter"); + mWakeLock.acquire(); + } + + @Override + public int onStartCommand(Intent intent, int flags, int startId) { + if (FORMAT_AND_FACTORY_RESET.equals(intent.getAction())) { + mFactoryReset = true; + } + if (intent.getBooleanExtra(EXTRA_ALWAYS_RESET, false)) { + mAlwaysReset = true; + } + + if (mProgressDialog == null) { + mProgressDialog = new ProgressDialog(this); + mProgressDialog.setIndeterminate(true); + mProgressDialog.setCancelable(true); + mProgressDialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT); + if (!mAlwaysReset) { + mProgressDialog.setOnCancelListener(this); + } + updateProgressState(); + mProgressDialog.show(); + } + + return Service.START_REDELIVER_INTENT; + } + + @Override + public void onDestroy() { + if (mStorageManager != null) { + mStorageManager.unregisterListener(mStorageListener); + } + if (mProgressDialog != null) { + mProgressDialog.dismiss(); + } + mWakeLock.release(); + super.onDestroy(); + } + + @Override + public IBinder onBind(Intent intent) { + return null; + } + + @Override + public void onCancel(DialogInterface dialog) { + IMountService mountService = getMountService(); + String extStoragePath = Environment.getExternalStorageDirectory().toString(); + try { + mountService.mountVolume(extStoragePath); + } catch (RemoteException e) { + Log.w(TAG, "Failed talking with mount service", e); + } + stopSelf(); + } + + void fail(int msg) { + Toast.makeText(this, msg, Toast.LENGTH_LONG).show(); + if (mAlwaysReset) { + sendBroadcast(new Intent("android.intent.action.MASTER_CLEAR")); + } + stopSelf(); + } + + void updateProgressState() { + String status = Environment.getExternalStorageState(); + if (Environment.MEDIA_MOUNTED.equals(status) + || Environment.MEDIA_MOUNTED_READ_ONLY.equals(status)) { + updateProgressDialog(R.string.progress_unmounting); + IMountService mountService = getMountService(); + String extStoragePath = Environment.getExternalStorageDirectory().toString(); + try { + mountService.unmountVolume(extStoragePath, true); + } catch (RemoteException e) { + Log.w(TAG, "Failed talking with mount service", e); + } + } else if (Environment.MEDIA_NOFS.equals(status) + || Environment.MEDIA_UNMOUNTED.equals(status) + || Environment.MEDIA_UNMOUNTABLE.equals(status)) { + updateProgressDialog(R.string.progress_erasing); + final IMountService mountService = getMountService(); + final String extStoragePath = Environment.getExternalStorageDirectory().toString(); + if (mountService != null) { + new Thread() { + public void run() { + boolean success = false; + try { + mountService.formatVolume(extStoragePath); + success = true; + } catch (Exception e) { + Toast.makeText(ExternalStorageFormatter.this, + R.string.format_error, Toast.LENGTH_LONG).show(); + } + if (success) { + if (mFactoryReset) { + sendBroadcast(new Intent("android.intent.action.MASTER_CLEAR")); + // Intent handling is asynchronous -- assume it will happen soon. + stopSelf(); + return; + } + } + // If we didn't succeed, or aren't doing a full factory + // reset, then it is time to remount the storage. + if (!success && mAlwaysReset) { + sendBroadcast(new Intent("android.intent.action.MASTER_CLEAR")); + } else { + try { + mountService.mountVolume(extStoragePath); + } catch (RemoteException e) { + Log.w(TAG, "Failed talking with mount service", e); + } + } + stopSelf(); + return; + } + }.start(); + } else { + Log.w("MediaFormat", "Unable to locate IMountService"); + } + } else if (Environment.MEDIA_BAD_REMOVAL.equals(status)) { + fail(R.string.media_bad_removal); + } else if (Environment.MEDIA_CHECKING.equals(status)) { + fail(R.string.media_checking); + } else if (Environment.MEDIA_REMOVED.equals(status)) { + fail(R.string.media_removed); + } else if (Environment.MEDIA_SHARED.equals(status)) { + fail(R.string.media_shared); + } else { + fail(R.string.media_unknown_state); + Log.w(TAG, "Unknown storage state: " + status); + stopSelf(); + } + } + + public void updateProgressDialog(int msg) { + if (mProgressDialog == null) { + mProgressDialog = new ProgressDialog(this); + mProgressDialog.setIndeterminate(true); + mProgressDialog.setCancelable(false); + mProgressDialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT); + mProgressDialog.show(); + } + + mProgressDialog.setMessage(getText(msg)); + } + + IMountService getMountService() { + if (mMountService == null) { + IBinder service = ServiceManager.getService("mount"); + if (service != null) { + mMountService = IMountService.Stub.asInterface(service); + } else { + Log.e(TAG, "Can't get mount service"); + } + } + return mMountService; + } +} |