AudioFlinger: Propagate uid info for AudioSession references
Enables better tracking of permission.
Improves dumpsys of global AudioSession references.
Test: Clarity effects
Test: adb shell dumpsys media.audio_flinger
Bug: 129355845
Change-Id: Ia0226c7047bb38b74e8b0cb67f12ec581b496631
diff --git a/media/libaudioclient/AudioEffect.cpp b/media/libaudioclient/AudioEffect.cpp
index 7d5b690..a1b141b 100644
--- a/media/libaudioclient/AudioEffect.cpp
+++ b/media/libaudioclient/AudioEffect.cpp
@@ -138,6 +138,7 @@
mIEffectClient = new EffectClient(this);
mClientPid = IPCThreadState::self()->getCallingPid();
+ mClientUid = IPCThreadState::self()->getCallingUid();
iEffect = audioFlinger->createEffect((effect_descriptor_t *)&mDescriptor,
mIEffectClient, priority, io, mSessionId, device, mOpPackageName, mClientPid,
@@ -179,7 +180,7 @@
mStatus, mEnabled, mClientPid);
if (!audio_is_global_session(mSessionId)) {
- AudioSystem::acquireAudioSessionId(mSessionId, mClientPid);
+ AudioSystem::acquireAudioSessionId(mSessionId, mClientPid, mClientUid);
}
return mStatus;
diff --git a/media/libaudioclient/AudioRecord.cpp b/media/libaudioclient/AudioRecord.cpp
index a438c77..981cfee 100644
--- a/media/libaudioclient/AudioRecord.cpp
+++ b/media/libaudioclient/AudioRecord.cpp
@@ -186,7 +186,7 @@
IPCThreadState::self()->flushCommands();
ALOGV("%s(%d): releasing session id %d",
__func__, mPortId, mSessionId);
- AudioSystem::releaseAudioSessionId(mSessionId, -1 /*pid*/);
+ AudioSystem::releaseAudioSessionId(mSessionId, mClientPid);
}
}
@@ -361,7 +361,7 @@
mMarkerReached = false;
mNewPosition = 0;
mUpdatePeriod = 0;
- AudioSystem::acquireAudioSessionId(mSessionId, -1);
+ AudioSystem::acquireAudioSessionId(mSessionId, mClientPid, mClientUid);
mSequence = 1;
mObservedSequence = mSequence;
mInOverrun = false;
diff --git a/media/libaudioclient/AudioSystem.cpp b/media/libaudioclient/AudioSystem.cpp
index 0742091..41a4f88 100644
--- a/media/libaudioclient/AudioSystem.cpp
+++ b/media/libaudioclient/AudioSystem.cpp
@@ -434,11 +434,11 @@
return af->newAudioUniqueId(use);
}
-void AudioSystem::acquireAudioSessionId(audio_session_t audioSession, pid_t pid)
+void AudioSystem::acquireAudioSessionId(audio_session_t audioSession, pid_t pid, uid_t uid)
{
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af != 0) {
- af->acquireAudioSessionId(audioSession, pid);
+ af->acquireAudioSessionId(audioSession, pid, uid);
}
}
diff --git a/media/libaudioclient/AudioTrack.cpp b/media/libaudioclient/AudioTrack.cpp
index 3151feb..8cfee50 100644
--- a/media/libaudioclient/AudioTrack.cpp
+++ b/media/libaudioclient/AudioTrack.cpp
@@ -599,7 +599,7 @@
mReleased = 0;
mStartNs = 0;
mStartFromZeroUs = 0;
- AudioSystem::acquireAudioSessionId(mSessionId, mClientPid);
+ AudioSystem::acquireAudioSessionId(mSessionId, mClientPid, mClientUid);
mSequence = 1;
mObservedSequence = mSequence;
mInUnderrun = false;
diff --git a/media/libaudioclient/IAudioFlinger.cpp b/media/libaudioclient/IAudioFlinger.cpp
index cbc98bd..513da2b 100644
--- a/media/libaudioclient/IAudioFlinger.cpp
+++ b/media/libaudioclient/IAudioFlinger.cpp
@@ -571,12 +571,13 @@
return id;
}
- virtual void acquireAudioSessionId(audio_session_t audioSession, int pid)
+ void acquireAudioSessionId(audio_session_t audioSession, pid_t pid, uid_t uid) override
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32(audioSession);
- data.writeInt32(pid);
+ data.writeInt32((int32_t)pid);
+ data.writeInt32((int32_t)uid);
remote()->transact(ACQUIRE_AUDIO_SESSION_ID, data, &reply);
}
@@ -1326,8 +1327,9 @@
case ACQUIRE_AUDIO_SESSION_ID: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
audio_session_t audioSession = (audio_session_t) data.readInt32();
- int pid = data.readInt32();
- acquireAudioSessionId(audioSession, pid);
+ const pid_t pid = (pid_t)data.readInt32();
+ const uid_t uid = (uid_t)data.readInt32();
+ acquireAudioSessionId(audioSession, pid, uid);
return NO_ERROR;
} break;
case RELEASE_AUDIO_SESSION_ID: {
diff --git a/media/libaudioclient/include/media/AudioEffect.h b/media/libaudioclient/include/media/AudioEffect.h
index f17d737..eec9dfc 100644
--- a/media/libaudioclient/include/media/AudioEffect.h
+++ b/media/libaudioclient/include/media/AudioEffect.h
@@ -639,7 +639,8 @@
sp<EffectClient> mIEffectClient; // IEffectClient implementation
sp<IMemory> mCblkMemory; // shared memory for deferred parameter setting
effect_param_cblk_t* mCblk; // control block for deferred parameter setting
- pid_t mClientPid;
+ pid_t mClientPid = (pid_t)-1;
+ uid_t mClientUid = (uid_t)-1;
};
diff --git a/media/libaudioclient/include/media/AudioSystem.h b/media/libaudioclient/include/media/AudioSystem.h
index ae8b59c..3a05eab 100644
--- a/media/libaudioclient/include/media/AudioSystem.h
+++ b/media/libaudioclient/include/media/AudioSystem.h
@@ -172,7 +172,7 @@
// or an unspecified existing unique ID.
static audio_unique_id_t newAudioUniqueId(audio_unique_id_use_t use);
- static void acquireAudioSessionId(audio_session_t audioSession, pid_t pid);
+ static void acquireAudioSessionId(audio_session_t audioSession, pid_t pid, uid_t uid);
static void releaseAudioSessionId(audio_session_t audioSession, pid_t pid);
// Get the HW synchronization source used for an audio session.
diff --git a/media/libaudioclient/include/media/IAudioFlinger.h b/media/libaudioclient/include/media/IAudioFlinger.h
index 8703f55..8bc1d83 100644
--- a/media/libaudioclient/include/media/IAudioFlinger.h
+++ b/media/libaudioclient/include/media/IAudioFlinger.h
@@ -446,7 +446,7 @@
virtual audio_unique_id_t newAudioUniqueId(audio_unique_id_use_t use) = 0;
- virtual void acquireAudioSessionId(audio_session_t audioSession, pid_t pid) = 0;
+ virtual void acquireAudioSessionId(audio_session_t audioSession, pid_t pid, uid_t uid) = 0;
virtual void releaseAudioSessionId(audio_session_t audioSession, pid_t pid) = 0;
virtual status_t queryNumberEffects(uint32_t *numEffects) const = 0;
diff --git a/media/libmedia/mediaplayer.cpp b/media/libmedia/mediaplayer.cpp
index 60d2f85..1fadc94 100644
--- a/media/libmedia/mediaplayer.cpp
+++ b/media/libmedia/mediaplayer.cpp
@@ -60,7 +60,7 @@
mVideoWidth = mVideoHeight = 0;
mLockThreadId = 0;
mAudioSessionId = (audio_session_t) AudioSystem::newAudioUniqueId(AUDIO_UNIQUE_ID_USE_SESSION);
- AudioSystem::acquireAudioSessionId(mAudioSessionId, -1);
+ AudioSystem::acquireAudioSessionId(mAudioSessionId, (pid_t)-1, (uid_t)-1); // always in client.
mSendLevel = 0;
mRetransmitEndpointValid = false;
}
@@ -72,7 +72,7 @@
delete mAudioAttributesParcel;
mAudioAttributesParcel = NULL;
}
- AudioSystem::releaseAudioSessionId(mAudioSessionId, -1);
+ AudioSystem::releaseAudioSessionId(mAudioSessionId, (pid_t)-1);
disconnect();
IPCThreadState::self()->flushCommands();
}
@@ -709,8 +709,8 @@
return BAD_VALUE;
}
if (sessionId != mAudioSessionId) {
- AudioSystem::acquireAudioSessionId(sessionId, -1);
- AudioSystem::releaseAudioSessionId(mAudioSessionId, -1);
+ AudioSystem::acquireAudioSessionId(sessionId, (pid_t)-1, (uid_t)-1);
+ AudioSystem::releaseAudioSessionId(mAudioSessionId, (pid_t)-1);
mAudioSessionId = sessionId;
}
return NO_ERROR;