Merge "AudioService: permission for volume adjustment to lowest values" into rvc-dev (962f6766) · Commits · e / os / android_frameworks_base

media/java/android/media/AudioManagerInternal.java

+3 −3

Original line number	Diff line number	Diff line
		@@ -29,13 +29,13 @@ import com.android.server.LocalServices;
		public abstract class AudioManagerInternal {

		public abstract void adjustSuggestedStreamVolumeForUid(int streamType, int direction,
		int flags, String callingPackage, int uid);
		int flags, String callingPackage, int uid, int pid);

		public abstract void adjustStreamVolumeForUid(int streamType, int direction, int flags,
		String callingPackage, int uid);
		String callingPackage, int uid, int pid);

		public abstract void setStreamVolumeForUid(int streamType, int direction, int flags,
		String callingPackage, int uid);
		String callingPackage, int uid, int pid);

		public abstract void setRingerModeDelegate(RingerModeDelegate delegate);

services/core/java/com/android/server/audio/AudioService.java

+138 −40

Original line number	Diff line number	Diff line
		@@ -955,6 +955,8 @@ public class AudioService extends IAudioService.Stub

		mMicMuteFromSystemCached = mAudioSystem.isMicrophoneMuted();
		setMicMuteFromSwitchInput();

		initMinStreamVolumeWithoutModifyAudioSettings();
		}

		RoleObserver mRoleObserver;
		@@ -1308,7 +1310,7 @@ public class AudioService extends IAudioService.Stub
		mStreamStates[streamType].setIndex(
		mStreamStates[mStreamVolumeAlias[streamType]]
		.getIndex(AudioSystem.DEVICE_OUT_DEFAULT),
		device, caller);
		device, caller, true /hasModifyAudioSettings/);
		}
		mStreamStates[streamType].checkFixedVolumeDevices();
		}
		@@ -1873,13 +1875,16 @@ public class AudioService extends IAudioService.Stub
		direction, 0 /ignored/,
		extVolCtlr, 0 /delay/);
		} else {
		final boolean hasModifyAudioSettings =
		mContext.checkCallingPermission(Manifest.permission.MODIFY_AUDIO_SETTINGS)
		== PackageManager.PERMISSION_GRANTED;
		adjustSuggestedStreamVolume(direction, suggestedStreamType, flags, callingPackage,
		caller, Binder.getCallingUid());
		caller, Binder.getCallingUid(), hasModifyAudioSettings);
		}
		}

		private void adjustSuggestedStreamVolume(int direction, int suggestedStreamType, int flags,
		String callingPackage, String caller, int uid) {
		String callingPackage, String caller, int uid, boolean hasModifyAudioSettings) {
		if (DEBUG_VOL) Log.d(TAG, "adjustSuggestedStreamVolume() stream=" + suggestedStreamType
		+ ", flags=" + flags + ", caller=" + caller
		+ ", volControlStream=" + mVolumeControlStream
		@@ -1933,10 +1938,12 @@ public class AudioService extends IAudioService.Stub
		if (DEBUG_VOL) Log.d(TAG, "Volume controller suppressed adjustment");
		}

		adjustStreamVolume(streamType, direction, flags, callingPackage, caller, uid);
		adjustStreamVolume(streamType, direction, flags, callingPackage, caller, uid,
		hasModifyAudioSettings);
		}

		/** @see AudioManager#adjustStreamVolume(int, int, int) */
		/** @see AudioManager#adjustStreamVolume(int, int, int)
		* Part of service interface, check permissions here */
		public void adjustStreamVolume(int streamType, int direction, int flags,
		String callingPackage) {
		if ((streamType == AudioManager.STREAM_ACCESSIBILITY) && !canChangeAccessibilityVolume()) {
		@@ -1944,14 +1951,17 @@ public class AudioService extends IAudioService.Stub
		+ "CHANGE_ACCESSIBILITY_VOLUME / callingPackage=" + callingPackage);
		return;
		}
		final boolean hasModifyAudioSettings =
		mContext.checkCallingPermission(Manifest.permission.MODIFY_AUDIO_SETTINGS)
		== PackageManager.PERMISSION_GRANTED;
		sVolumeLogger.log(new VolumeEvent(VolumeEvent.VOL_ADJUST_STREAM_VOL, streamType,
		direction/val1/, flags/val2/, callingPackage));
		adjustStreamVolume(streamType, direction, flags, callingPackage, callingPackage,
		Binder.getCallingUid());
		Binder.getCallingUid(), hasModifyAudioSettings);
		}

		protected void adjustStreamVolume(int streamType, int direction, int flags,
		String callingPackage, String caller, int uid) {
		String callingPackage, String caller, int uid, boolean hasModifyAudioSettings) {
		if (mUseFixedVolume) {
		return;
		}
		@@ -2105,7 +2115,8 @@ public class AudioService extends IAudioService.Stub
		Log.e(TAG, "adjustStreamVolume() safe volume index = " + oldIndex);
		mVolumeController.postDisplaySafeVolumeWarning(flags);
		} else if (!isFullVolumeDevice(device)
		&& (streamState.adjustIndex(direction * step, device, caller)
		&& (streamState.adjustIndex(direction * step, device, caller,
		hasModifyAudioSettings)
		\|\| streamState.mIsMuted)) {
		// Post message to set system volume (it in turn will post a
		// message to persist).
		@@ -2327,9 +2338,9 @@ public class AudioService extends IAudioService.Stub
		}

		private void onSetStreamVolume(int streamType, int index, int flags, int device,
		String caller) {
		String caller, boolean hasModifyAudioSettings) {
		final int stream = mStreamVolumeAlias[streamType];
		setStreamVolumeInt(stream, index, device, false, caller);
		setStreamVolumeInt(stream, index, device, false, caller, hasModifyAudioSettings);
		// setting volume on ui sounds stream type also controls silent mode
		if (((flags & AudioManager.FLAG_ALLOW_RINGER_MODES) != 0) \|\|
		(stream == getUiSoundsStreamType())) {
		@@ -2377,7 +2388,7 @@ public class AudioService extends IAudioService.Stub
		continue;
		}
		setStreamVolume(groupedStream, index, flags, callingPackage, callingPackage,
		Binder.getCallingUid());
		Binder.getCallingUid(), true /hasModifyAudioSettings/);
		}
		}

		@@ -2419,7 +2430,8 @@ public class AudioService extends IAudioService.Stub
		return AudioSystem.getMinVolumeIndexForAttributes(attr);
		}

		/** @see AudioManager#setStreamVolume(int, int, int) */
		/** @see AudioManager#setStreamVolume(int, int, int)
		* Part of service interface, check permissions here */
		public void setStreamVolume(int streamType, int index, int flags, String callingPackage) {
		if ((streamType == AudioManager.STREAM_ACCESSIBILITY) && !canChangeAccessibilityVolume()) {
		Log.w(TAG, "Trying to call setStreamVolume() for a11y without"
		@@ -2442,10 +2454,13 @@ public class AudioService extends IAudioService.Stub
		+ " MODIFY_AUDIO_ROUTING callingPackage=" + callingPackage);
		return;
		}
		final boolean hasModifyAudioSettings =
		mContext.checkCallingOrSelfPermission(Manifest.permission.MODIFY_AUDIO_SETTINGS)
		== PackageManager.PERMISSION_GRANTED;
		sVolumeLogger.log(new VolumeEvent(VolumeEvent.VOL_SET_STREAM_VOL, streamType,
		index/val1/, flags/val2/, callingPackage));
		setStreamVolume(streamType, index, flags, callingPackage, callingPackage,
		Binder.getCallingUid());
		Binder.getCallingUid(), hasModifyAudioSettings);
		}

		private boolean canChangeAccessibilityVolume() {
		@@ -2569,7 +2584,7 @@ public class AudioService extends IAudioService.Stub
		}

		private void setStreamVolume(int streamType, int index, int flags, String callingPackage,
		String caller, int uid) {
		String caller, int uid, boolean hasModifyAudioSettings) {
		if (DEBUG_VOL) {
		Log.d(TAG, "setStreamVolume(stream=" + streamType+", index=" + index
		+ ", calling=" + callingPackage + ")");
		@@ -2660,7 +2675,7 @@ public class AudioService extends IAudioService.Stub
		mPendingVolumeCommand = new StreamVolumeCommand(
		streamType, index, flags, device);
		} else {
		onSetStreamVolume(streamType, index, flags, device, caller);
		onSetStreamVolume(streamType, index, flags, device, caller, hasModifyAudioSettings);
		index = mStreamStates[streamType].getIndex(device);
		}
		}
		@@ -2872,19 +2887,22 @@ public class AudioService extends IAudioService.Stub
		* @param index Desired volume index of the stream
		* @param device the device whose volume must be changed
		* @param force If true, set the volume even if the desired volume is same
		* @param caller
		* @param hasModifyAudioSettings true if the caller is granted MODIFY_AUDIO_SETTINGS or
		* MODIFY_AUDIO_ROUTING permission
		* as the current volume.
		*/
		private void setStreamVolumeInt(int streamType,
		int index,
		int device,
		boolean force,
		String caller) {
		String caller, boolean hasModifyAudioSettings) {
		if (isFullVolumeDevice(device)) {
		return;
		}
		VolumeStreamState streamState = mStreamStates[streamType];

		if (streamState.setIndex(index, device, caller) \|\| force) {
		if (streamState.setIndex(index, device, caller, hasModifyAudioSettings) \|\| force) {
		// Post message to set system volume (it in turn will post a message
		// to persist).
		sendMsg(mAudioHandler,
		@@ -3417,7 +3435,7 @@ public class AudioService extends IAudioService.Stub
		int device = vss.mIndexMap.keyAt(i);
		int value = vss.mIndexMap.valueAt(i);
		if (value == 0) {
		vss.setIndex(10, device, TAG);
		vss.setIndex(10, device, TAG, true /hasModifyAudioSettings/);
		}
		}
		// Persist volume for stream ring when it is changed here
		@@ -3762,7 +3780,8 @@ public class AudioService extends IAudioService.Stub
		int streamType = getActiveStreamType(AudioManager.USE_DEFAULT_STREAM_TYPE);
		int device = getDeviceForStream(streamType);
		int index = mStreamStates[mStreamVolumeAlias[streamType]].getIndex(device);
		setStreamVolumeInt(mStreamVolumeAlias[streamType], index, device, true, caller);
		setStreamVolumeInt(mStreamVolumeAlias[streamType], index, device, true, caller,
		true /hasModifyAudioSettings/);

		updateStreamVolumeAlias(true /updateVolumes/, caller);

		@@ -4671,6 +4690,44 @@ public class AudioService extends IAudioService.Stub
		return false;
		}

		/**
		* Minimum attenuation that can be set for alarms over speaker by an application that
		* doesn't have the MODIFY_AUDIO_SETTINGS permission.
		*/
		protected static final float MIN_ALARM_ATTENUATION_NON_PRIVILEGED_DB = -36.0f;

		/**
		* Configures the VolumeStreamState instances for minimum stream index that can be accessed
		* without MODIFY_AUDIO_SETTINGS permission.
		* Can only be done successfully once audio policy has finished reading its configuration files
		* for the volume curves. If not, getStreamVolumeDB will return NaN, and the min value will
		* remain at the stream min index value.
		*/
		protected void initMinStreamVolumeWithoutModifyAudioSettings() {
		int idx;
		int deviceForAlarm = AudioSystem.DEVICE_OUT_SPEAKER_SAFE;
		if (Float.isNaN(AudioSystem.getStreamVolumeDB(AudioSystem.STREAM_ALARM,
		MIN_STREAM_VOLUME[AudioSystem.STREAM_ALARM], deviceForAlarm))) {
		deviceForAlarm = AudioSystem.DEVICE_OUT_SPEAKER;
		}
		for (idx = MAX_STREAM_VOLUME[AudioSystem.STREAM_ALARM];
		idx >= MIN_STREAM_VOLUME[AudioSystem.STREAM_ALARM]; idx--) {
		if (AudioSystem.getStreamVolumeDB(AudioSystem.STREAM_ALARM, idx, deviceForAlarm)
		< MIN_ALARM_ATTENUATION_NON_PRIVILEGED_DB) {
		break;
		}
		}
		final int safeIndex = idx <= MIN_STREAM_VOLUME[AudioSystem.STREAM_ALARM]
		? MIN_STREAM_VOLUME[AudioSystem.STREAM_ALARM]
		: Math.min(idx + 1, MAX_STREAM_VOLUME[AudioSystem.STREAM_ALARM]);
		// update the VolumeStreamState for STREAM_ALARM and its aliases
		for (int stream : mStreamVolumeAlias) {
		if (mStreamVolumeAlias[stream] == AudioSystem.STREAM_ALARM) {
		mStreamStates[stream].updateNoPermMinIndex(safeIndex);
		}
		}
		}

		/** only public for mocking/spying, do not call outside of AudioService */
		@VisibleForTesting
		public int getDeviceForStream(int stream) {
		@@ -5335,6 +5392,8 @@ public class AudioService extends IAudioService.Stub
		private class VolumeStreamState {
		private final int mStreamType;
		private int mIndexMin;
		// min index when user doesn't have permission to change audio settings
		private int mIndexMinNoPerm;
		private int mIndexMax;

		private boolean mIsMuted;
		@@ -5376,6 +5435,7 @@ public class AudioService extends IAudioService.Stub

		mStreamType = streamType;
		mIndexMin = MIN_STREAM_VOLUME[streamType] * 10;
		mIndexMinNoPerm = mIndexMin; // may be overwritten later in updateNoPermMinIndex()
		mIndexMax = MAX_STREAM_VOLUME[streamType] * 10;
		AudioSystem.initStreamVolume(streamType, mIndexMin / 10, mIndexMax / 10);

		@@ -5386,6 +5446,18 @@ public class AudioService extends IAudioService.Stub
		mStreamDevicesChanged.putExtra(AudioManager.EXTRA_VOLUME_STREAM_TYPE, mStreamType);
		}

		/**
		* Update the minimum index that can be used without MODIFY_AUDIO_SETTINGS permission
		* @param index minimum index expressed in "UI units", i.e. no 10x factor
		*/
		public void updateNoPermMinIndex(int index) {
		mIndexMinNoPerm = index * 10;
		if (mIndexMinNoPerm < mIndexMin) {
		Log.e(TAG, "Invalid mIndexMinNoPerm for stream " + mStreamType);
		mIndexMinNoPerm = mIndexMin;
		}
		}

		public int observeDevicesForStream_syncVSS(boolean checkOthers) {
		if (!mSystemServer.isPrivileged()) {
		return AudioSystem.DEVICE_NONE;
		@@ -5467,7 +5539,8 @@ public class AudioService extends IAudioService.Stub
		continue;
		}

		mIndexMap.put(device, getValidIndex(10 * index));
		mIndexMap.put(device, getValidIndex(10 * index,
		true /hasModifyAudioSettings/));
		}
		}
		}
		@@ -5555,17 +5628,20 @@ public class AudioService extends IAudioService.Stub
		}
		}

		public boolean adjustIndex(int deltaIndex, int device, String caller) {
		return setIndex(getIndex(device) + deltaIndex, device, caller);
		public boolean adjustIndex(int deltaIndex, int device, String caller,
		boolean hasModifyAudioSettings) {
		return setIndex(getIndex(device) + deltaIndex, device, caller,
		hasModifyAudioSettings);
		}

		public boolean setIndex(int index, int device, String caller) {
		public boolean setIndex(int index, int device, String caller,
		boolean hasModifyAudioSettings) {
		boolean changed;
		int oldIndex;
		synchronized (mSettingsLock) {
		synchronized (VolumeStreamState.class) {
		oldIndex = getIndex(device);
		index = getValidIndex(index);
		index = getValidIndex(index, hasModifyAudioSettings);
		if ((mStreamType == AudioSystem.STREAM_SYSTEM_ENFORCED) && mCameraSoundForced) {
		index = mIndexMax;
		}
		@@ -5585,10 +5661,12 @@ public class AudioService extends IAudioService.Stub
		mStreamVolumeAlias[streamType] == mStreamType &&
		(changed \|\| !aliasStreamState.hasIndexForDevice(device))) {
		final int scaledIndex = rescaleIndex(index, mStreamType, streamType);
		aliasStreamState.setIndex(scaledIndex, device, caller);
		aliasStreamState.setIndex(scaledIndex, device, caller,
		hasModifyAudioSettings);
		if (isCurrentDevice) {
		aliasStreamState.setIndex(scaledIndex,
		getDeviceForStream(streamType), caller);
		getDeviceForStream(streamType), caller,
		hasModifyAudioSettings);
		}
		}
		}
		@@ -5678,7 +5756,7 @@ public class AudioService extends IAudioService.Stub
		index = srcMap.valueAt(i);
		index = rescaleIndex(index, srcStreamType, mStreamType);

		setIndex(index, device, caller);
		setIndex(index, device, caller, true /hasModifyAudioSettings/);
		}
		}

		@@ -5745,9 +5823,10 @@ public class AudioService extends IAudioService.Stub
		}
		}

		private int getValidIndex(int index) {
		if (index < mIndexMin) {
		return mIndexMin;
		private int getValidIndex(int index, boolean hasModifyAudioSettings) {
		final int indexMin = hasModifyAudioSettings ? mIndexMin : mIndexMinNoPerm;
		if (index < indexMin) {
		return indexMin;
		} else if (mUseFixedVolume \|\| index > mIndexMax) {
		return mIndexMax;
		}
		@@ -5759,7 +5838,13 @@ public class AudioService extends IAudioService.Stub
		pw.print(" Muted: ");
		pw.println(mIsMuted);
		pw.print(" Min: ");
		pw.println((mIndexMin + 5) / 10);
		pw.print((mIndexMin + 5) / 10);
		if (mIndexMin != mIndexMinNoPerm) {
		pw.print(" w/o perm:");
		pw.println((mIndexMinNoPerm + 5) / 10);
		} else {
		pw.println();
		}
		pw.print(" Max: ");
		pw.println((mIndexMax + 5) / 10);
		pw.print(" streamVolume:"); pw.println(getStreamVolume(mStreamType));
		@@ -5880,7 +5965,9 @@ public class AudioService extends IAudioService.Stub
		final VolumeStreamState streamState = mStreamStates[update.mStreamType];
		if (update.hasVolumeIndex()) {
		final int index = update.getVolumeIndex();
		streamState.setIndex(index, update.mDevice, update.mCaller);
		streamState.setIndex(index, update.mDevice, update.mCaller,
		// trusted as index is always validated before message is posted
		true /hasModifyAudioSettings/);
		sVolumeLogger.log(new AudioEventLogger.StringEvent(update.mCaller + " dev:0x"
		+ Integer.toHexString(update.mDevice) + " volIdx:" + index));
		} else {
		@@ -6823,7 +6910,8 @@ public class AudioService extends IAudioService.Stub
		for (int device : devices) {
		int index = streamState.getIndex(device);
		if (index > safeMediaVolumeIndex(device)) {
		streamState.setIndex(safeMediaVolumeIndex(device), device, caller);
		streamState.setIndex(safeMediaVolumeIndex(device), device, caller,
		true /hasModifyAudioSettings/);
		sendMsg(mAudioHandler,
		MSG_SET_DEVICE_VOLUME,
		SENDMSG_QUEUE,
		@@ -6857,7 +6945,7 @@ public class AudioService extends IAudioService.Stub
		mPendingVolumeCommand.mIndex,
		mPendingVolumeCommand.mFlags,
		mPendingVolumeCommand.mDevice,
		callingPackage);
		callingPackage, true /hasModifyAudioSettings/);
		mPendingVolumeCommand = null;
		}
		}
		@@ -7465,29 +7553,39 @@ public class AudioService extends IAudioService.Stub

		@Override
		public void adjustSuggestedStreamVolumeForUid(int streamType, int direction, int flags,
		String callingPackage, int uid) {
		String callingPackage, int uid, int pid) {
		final boolean hasModifyAudioSettings =
		mContext.checkPermission(Manifest.permission.MODIFY_AUDIO_SETTINGS, pid, uid)
		== PackageManager.PERMISSION_GRANTED;
		// direction and stream type swap here because the public
		// adjustSuggested has a different order than the other methods.
		adjustSuggestedStreamVolume(direction, streamType, flags, callingPackage,
		callingPackage, uid);
		callingPackage, uid, hasModifyAudioSettings);
		}

		@Override
		public void adjustStreamVolumeForUid(int streamType, int direction, int flags,
		String callingPackage, int uid) {
		String callingPackage, int uid, int pid) {
		if (direction != AudioManager.ADJUST_SAME) {
		sVolumeLogger.log(new VolumeEvent(VolumeEvent.VOL_ADJUST_VOL_UID, streamType,
		direction/val1/, flags/val2/, new StringBuilder(callingPackage)
		.append(" uid:").append(uid).toString()));
		}
		final boolean hasModifyAudioSettings =
		mContext.checkPermission(Manifest.permission.MODIFY_AUDIO_SETTINGS, pid, uid)
		== PackageManager.PERMISSION_GRANTED;
		adjustStreamVolume(streamType, direction, flags, callingPackage,
		callingPackage, uid);
		callingPackage, uid, hasModifyAudioSettings);
		}

		@Override
		public void setStreamVolumeForUid(int streamType, int direction, int flags,
		String callingPackage, int uid) {
		setStreamVolume(streamType, direction, flags, callingPackage, callingPackage, uid);
		String callingPackage, int uid, int pid) {
		final boolean hasModifyAudioSettings =
		mContext.checkPermission(Manifest.permission.MODIFY_AUDIO_SETTINGS, pid, uid)
		== PackageManager.PERMISSION_GRANTED;
		setStreamVolume(streamType, direction, flags, callingPackage, callingPackage, uid,
		hasModifyAudioSettings);
		}

		@Override

services/core/java/com/android/server/media/MediaSessionRecord.java

+7 −4

Original line number	Diff line number	Diff line
		@@ -328,7 +328,7 @@ public class MediaSessionRecord implements IBinder.DeathRecipient, MediaSessionR
		public void run() {
		try {
		mAudioManagerInternal.setStreamVolumeForUid(stream, volumeValue, flags,
		opPackageName, uid);
		opPackageName, uid, pid);
		} catch (IllegalArgumentException \| SecurityException e) {
		Log.e(TAG, "Cannot set volume: stream=" + stream + ", value=" + volumeValue
		+ ", flags=" + flags, e);
		@@ -501,12 +501,15 @@ public class MediaSessionRecord implements IBinder.DeathRecipient, MediaSessionR
		// Must use opPackageName for adjusting volumes with UID.
		final String opPackageName;
		final int uid;
		final int pid;
		if (asSystemService) {
		opPackageName = mContext.getOpPackageName();
		uid = Process.SYSTEM_UID;
		pid = Process.myPid();
		} else {
		opPackageName = callingOpPackageName;
		uid = callingUid;
		pid = callingPid;
		}
		mHandler.post(new Runnable() {
		@Override
		@@ -515,15 +518,15 @@ public class MediaSessionRecord implements IBinder.DeathRecipient, MediaSessionR
		if (useSuggested) {
		if (AudioSystem.isStreamActive(stream, 0)) {
		mAudioManagerInternal.adjustSuggestedStreamVolumeForUid(stream,
		direction, flags, opPackageName, uid);
		direction, flags, opPackageName, uid, pid);
		} else {
		mAudioManagerInternal.adjustSuggestedStreamVolumeForUid(
		AudioManager.USE_DEFAULT_STREAM_TYPE, direction,
		flags \| previousFlagPlaySound, opPackageName, uid);
		flags \| previousFlagPlaySound, opPackageName, uid, pid);
		}
		} else {
		mAudioManagerInternal.adjustStreamVolumeForUid(stream, direction, flags,
		opPackageName, uid);
		opPackageName, uid, pid);
		}
		} catch (IllegalArgumentException \| SecurityException e) {
		Log.e(TAG, "Cannot adjust volume: direction=" + direction + ", stream="

services/core/java/com/android/server/media/MediaSessionService.java

+4 −1

Original line number	Diff line number	Diff line
		@@ -2107,16 +2107,19 @@ public class MediaSessionService extends SystemService implements Monitor {
		public void run() {
		final String callingOpPackageName;
		final int callingUid;
		final int callingPid;
		if (asSystemService) {
		callingOpPackageName = mContext.getOpPackageName();
		callingUid = Process.myUid();
		callingPid = Process.myPid();
		} else {
		callingOpPackageName = opPackageName;
		callingUid = uid;
		callingPid = pid;
		}
		try {
		mAudioManagerInternal.adjustSuggestedStreamVolumeForUid(suggestedStream,
		direction, flags, callingOpPackageName, callingUid);
		direction, flags, callingOpPackageName, callingUid, callingPid);
		} catch (SecurityException \| IllegalArgumentException e) {
		Log.e(TAG, "Cannot adjust volume: direction=" + direction
		+ ", suggestedStream=" + suggestedStream + ", flags=" + flags