Add package name when creating AudioTrack.
The package name can be used when starting an external vibration, which
is used by vibrator service to check if the application has the
permission to start vibration.
Bug: 165910728
Bug: 162343845
Test: atest AudioTrackTest MediaPlayerTest
Test: start audio-coupled-haptic playback
Change-Id: I6d12c4e141c037ee94ee79cbb9bf537421ec9507
Merged-In: I6d12c4e141c037ee94ee79cbb9bf537421ec9507
diff --git a/services/audioflinger/Tracks.cpp b/services/audioflinger/Tracks.cpp
index db25e57..178809c 100644
--- a/services/audioflinger/Tracks.cpp
+++ b/services/audioflinger/Tracks.cpp
@@ -386,11 +386,12 @@
// static
sp<AudioFlinger::PlaybackThread::OpPlayAudioMonitor>
AudioFlinger::PlaybackThread::OpPlayAudioMonitor::createIfNeeded(
- uid_t uid, const audio_attributes_t& attr, int id, audio_stream_type_t streamType)
+ uid_t uid, const audio_attributes_t& attr, int id, audio_stream_type_t streamType,
+ const std::string& opPackageName)
{
+ Vector <String16> packages;
+ getPackagesForUid(uid, packages);
if (isServiceUid(uid)) {
- Vector <String16> packages;
- getPackagesForUid(uid, packages);
if (packages.isEmpty()) {
ALOGD("OpPlayAudio: not muting track:%d usage:%d for service UID %d",
id,
@@ -410,12 +411,32 @@
id, attr.flags);
return nullptr;
}
- return new OpPlayAudioMonitor(uid, attr.usage, id);
+
+ String16 opPackageNameStr(opPackageName.c_str());
+ if (opPackageName.empty()) {
+ // If no package name is provided by the client, use the first associated with the uid
+ if (!packages.isEmpty()) {
+ opPackageNameStr = packages[0];
+ }
+ } else {
+ // If the provided package name is invalid, we force app ops denial by clearing the package
+ // name passed to OpPlayAudioMonitor
+ if (std::find_if(packages.begin(), packages.end(),
+ [&opPackageNameStr](const auto& package) {
+ return opPackageNameStr == package; }) == packages.end()) {
+ ALOGW("The package name(%s) provided does not correspond to the uid %d, "
+ "force muting the track", opPackageName.c_str(), uid);
+ // Set package name as an empty string so that hasOpPlayAudio will always return false.
+ opPackageNameStr = String16("");
+ }
+ }
+ return new OpPlayAudioMonitor(uid, attr.usage, id, opPackageNameStr);
}
AudioFlinger::PlaybackThread::OpPlayAudioMonitor::OpPlayAudioMonitor(
- uid_t uid, audio_usage_t usage, int id)
- : mHasOpPlayAudio(true), mUid(uid), mUsage((int32_t) usage), mId(id)
+ uid_t uid, audio_usage_t usage, int id, const String16& opPackageName)
+ : mHasOpPlayAudio(true), mUid(uid), mUsage((int32_t) usage), mId(id),
+ mOpPackageName(opPackageName)
{
}
@@ -429,11 +450,10 @@
void AudioFlinger::PlaybackThread::OpPlayAudioMonitor::onFirstRef()
{
- getPackagesForUid(mUid, mPackages);
checkPlayAudioForUsage();
- if (!mPackages.isEmpty()) {
+ if (mOpPackageName.size() != 0) {
mOpCallback = new PlayAudioOpCallback(this);
- mAppOpsManager.startWatchingMode(AppOpsManager::OP_PLAY_AUDIO, mPackages[0], mOpCallback);
+ mAppOpsManager.startWatchingMode(AppOpsManager::OP_PLAY_AUDIO, mOpPackageName, mOpCallback);
}
}
@@ -446,18 +466,11 @@
// - not called from PlayAudioOpCallback because the callback is not installed in this case
void AudioFlinger::PlaybackThread::OpPlayAudioMonitor::checkPlayAudioForUsage()
{
- if (mPackages.isEmpty()) {
+ if (mOpPackageName.size() == 0) {
mHasOpPlayAudio.store(false);
} else {
- bool hasIt = true;
- for (const String16& packageName : mPackages) {
- const int32_t mode = mAppOpsManager.checkAudioOpNoThrow(AppOpsManager::OP_PLAY_AUDIO,
- mUsage, mUid, packageName);
- if (mode != AppOpsManager::MODE_ALLOWED) {
- hasIt = false;
- break;
- }
- }
+ bool hasIt = mAppOpsManager.checkAudioOpNoThrow(AppOpsManager::OP_PLAY_AUDIO,
+ mUsage, mUid, mOpPackageName) == AppOpsManager::MODE_ALLOWED;
ALOGD("OpPlayAudio: track:%d usage:%d %smuted", mId, mUsage, hasIt ? "not " : "");
mHasOpPlayAudio.store(hasIt);
}
@@ -511,7 +524,8 @@
audio_output_flags_t flags,
track_type type,
audio_port_handle_t portId,
- size_t frameCountToBeReady)
+ size_t frameCountToBeReady,
+ const std::string opPackageName)
: TrackBase(thread, client, attr, sampleRate, format, channelMask, frameCount,
// TODO: Using unsecurePointer() has some associated security pitfalls
// (see declaration for details).
@@ -534,7 +548,8 @@
mPresentationCompleteFrames(0),
mFrameMap(16 /* sink-frame-to-track-frame map memory */),
mVolumeHandler(new media::VolumeHandler(sampleRate)),
- mOpPlayAudioMonitor(OpPlayAudioMonitor::createIfNeeded(uid, attr, id(), streamType)),
+ mOpPlayAudioMonitor(OpPlayAudioMonitor::createIfNeeded(
+ uid, attr, id(), streamType, opPackageName)),
// mSinkTimestamp
mFrameCountToBeReady(frameCountToBeReady),
mFastIndex(-1),
@@ -598,7 +613,7 @@
if (channelMask & AUDIO_CHANNEL_HAPTIC_ALL) {
mAudioVibrationController = new AudioVibrationController(this);
mExternalVibration = new os::ExternalVibration(
- mUid, "" /* pkg */, mAttr, mAudioVibrationController);
+ mUid, opPackageName, mAttr, mAudioVibrationController);
}
// Once this item is logged by the server, the client can add properties.