Save OwnerInfo so CryptKeeper can display at boot time (e51dcf98) · Commits · e / os / android_frameworks_base

core/java/android/os/storage/IMountService.java

+66 −1

Original line number	Diff line number	Diff line
		@@ -711,17 +711,48 @@ public interface IMountService extends IInterface {
		}

		public void clearPassword() throws RemoteException {
		Parcel _data = Parcel.obtain();
		Parcel _reply = Parcel.obtain();
		try {
		_data.writeInterfaceToken(DESCRIPTOR);
		mRemote.transact(Stub.TRANSACTION_clearPassword, _data, _reply, IBinder.FLAG_ONEWAY);
		_reply.readException();
		} finally {
		_reply.recycle();
		_data.recycle();
		}
		}

		public void setField(String field, String data) throws RemoteException {
		Parcel _data = Parcel.obtain();
		Parcel _reply = Parcel.obtain();
		try {
		_data.writeInterfaceToken(DESCRIPTOR);
		_data.writeString(field);
		_data.writeString(data);
		mRemote.transact(Stub.TRANSACTION_setField, _data, _reply, IBinder.FLAG_ONEWAY);
		_reply.readException();
		} finally {
		_reply.recycle();
		_data.recycle();
		}
		}

		public String getField(String field) throws RemoteException {
		Parcel _data = Parcel.obtain();
		Parcel _reply = Parcel.obtain();
		String _result;
		try {
		_data.writeInterfaceToken(DESCRIPTOR);
		mRemote.transact(Stub.TRANSACTION_clearPassword, _data, _reply, 0);
		_data.writeString(field);
		mRemote.transact(Stub.TRANSACTION_getField, _data, _reply, 0);
		_reply.readException();
		_result = _reply.readString();
		} finally {
		_reply.recycle();
		_data.recycle();
		}
		return _result;
		}

		public StorageVolume[] getVolumeList() throws RemoteException {
		@@ -882,6 +913,10 @@ public interface IMountService extends IInterface {

		static final int TRANSACTION_clearPassword = IBinder.FIRST_CALL_TRANSACTION + 37;

		static final int TRANSACTION_setField = IBinder.FIRST_CALL_TRANSACTION + 38;

		static final int TRANSACTION_getField = IBinder.FIRST_CALL_TRANSACTION + 39;

		/**
		* Cast an IBinder object into an IMountService interface, generating a
		* proxy if needed.
		@@ -1255,6 +1290,22 @@ public interface IMountService extends IInterface {
		reply.writeNoException();
		return true;
		}
		case TRANSACTION_setField: {
		data.enforceInterface(DESCRIPTOR);
		String field = data.readString();
		String contents = data.readString();
		setField(field, contents);
		reply.writeNoException();
		return true;
		}
		case TRANSACTION_getField: {
		data.enforceInterface(DESCRIPTOR);
		String field = data.readString();
		String contents = getField(field);
		reply.writeNoException();
		reply.writeString(contents);
		return true;
		}
		}
		return super.onTransact(code, data, reply, flags);
		}
		@@ -1504,4 +1555,18 @@ public interface IMountService extends IInterface {
		* Securely clear password from vold
		*/
		public void clearPassword() throws RemoteException;

		/**
		* Set a field in the crypto header.
		* @param field field to set
		* @param contents contents to set in field
		*/
		public void setField(String field, String contents) throws RemoteException;

		/**
		* Gets a field from the crypto header.
		* @param field field to get
		* @return contents of field
		*/
		public String getField(String field) throws RemoteException;
		}

core/java/com/android/internal/widget/LockPatternUtils.java

+25 −0

Original line number	Diff line number	Diff line
		@@ -564,12 +564,37 @@ public class LockPatternUtils {
		}
		}

		private void updateCryptoUserInfo() {
		int userId = getCurrentOrCallingUserId();
		if (userId != UserHandle.USER_OWNER) {
		return;
		}

		final String ownerInfo = isOwnerInfoEnabled() ? getOwnerInfo(userId) : "";

		IBinder service = ServiceManager.getService("mount");
		if (service == null) {
		Log.e(TAG, "Could not find the mount service to update the user info");
		return;
		}

		IMountService mountService = IMountService.Stub.asInterface(service);
		try {
		Log.d(TAG, "Setting owner info");
		mountService.setField("OwnerInfo", ownerInfo);
		} catch (RemoteException e) {
		Log.e(TAG, "Error changing user info", e);
		}
		}

		public void setOwnerInfo(String info, int userId) {
		setString(LOCK_SCREEN_OWNER_INFO, info, userId);
		updateCryptoUserInfo();
		}

		public void setOwnerInfoEnabled(boolean enabled) {
		setBoolean(LOCK_SCREEN_OWNER_INFO_ENABLED, enabled);
		updateCryptoUserInfo();
		}

		public String getOwnerInfo(int userId) {

services/core/java/com/android/server/MountService.java

+44 −0

Original line number	Diff line number	Diff line
		@@ -158,6 +158,7 @@ class MountService extends IMountService.Stub
		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.
		@@ -2251,6 +2252,49 @@ class MountService extends IMountService.Stub
		}
		}

		/**
		* 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 {
		if (!isReady()) {