libaudioclient: add checks after AIDL conversions to handle fatal errors (7a31d790) · Commits · e / os / android_frameworks_av

media/libaudioclient/AudioRecord.cpp

+94 −59

Original line number	Diff line number	Diff line
		@@ -79,6 +79,17 @@ status_t AudioRecord::getMinFrameCount(
		return NO_ERROR;
		}

		status_t AudioRecord::logIfErrorAndReturnStatus(status_t status, const std::string& errorMessage,
		const std::string& func) {
		if (status != NO_ERROR) {
		if (!func.empty()) mMediaMetrics.markError(status, func.c_str());
		ALOGE_IF(!errorMessage.empty(), "%s", errorMessage.c_str());
		reportError(status, AMEDIAMETRICS_PROP_EVENT_VALUE_CREATE, errorMessage.c_str());
		}
		mStatus = status;
		return mStatus;
		}

		// ---------------------------------------------------------------------------

		void AudioRecord::MediaMetrics::gather(const AudioRecord *record)
		@@ -246,13 +257,28 @@ status_t AudioRecord::set(
		if (pid == -1 \|\| (callingPid != myPid)) {
		adjPid = callingPid;
		}
		mClientAttributionSource.pid = VALUE_OR_FATAL(legacy2aidl_pid_t_int32_t(adjPid));

		auto clientAttributionSourcePid = legacy2aidl_pid_t_int32_t(adjPid);
		if (!clientAttributionSourcePid.ok()) {
		return logIfErrorAndReturnStatus(BAD_VALUE,
		StringPrintf("%s: received invalid client attribution "
		"source pid, pid: %d, sessionId: %d",
		__func__, pid, sessionId),
		__func__);
		}
		mClientAttributionSource.pid = clientAttributionSourcePid.value();
		uid_t adjUid = uid;
		if (uid == -1 \|\| (callingPid != myPid)) {
		adjUid = IPCThreadState::self()->getCallingUid();
		}
		mClientAttributionSource.uid = VALUE_OR_FATAL(legacy2aidl_uid_t_int32_t(adjUid));
		auto clientAttributionSourceUid = legacy2aidl_uid_t_int32_t(adjUid);
		if (!clientAttributionSourceUid.ok()) {
		return logIfErrorAndReturnStatus(BAD_VALUE,
		StringPrintf("%s: received invalid client attribution "
		"source uid, pid: %d, session id: %d",
		__func__, pid, sessionId),
		__func__);
		}
		mClientAttributionSource.uid = clientAttributionSourceUid.value();

		mTracker.reset(new RecordingActivityTracker());

		@@ -261,7 +287,6 @@ status_t AudioRecord::set(
		mSelectedMicFieldDimension = microphoneFieldDimension;
		mMaxSharedAudioHistoryMs = maxSharedAudioHistoryMs;

		std::string errorMessage;
		// Copy the state variables early so they are available for error reporting.
		if (pAttributes == nullptr) {
		mAttributes = AUDIO_ATTRIBUTES_INITIALIZER;
		@@ -304,38 +329,48 @@ status_t AudioRecord::set(
		break;
		case TRANSFER_CALLBACK:
		if (callback == nullptr) {
		errorMessage = StringPrintf(
		"%s: Transfer type TRANSFER_CALLBACK but callback == nullptr", __func__);
		status = BAD_VALUE;
		goto error;
		return logIfErrorAndReturnStatus(
		BAD_VALUE,
		StringPrintf("%s: Transfer type TRANSFER_CALLBACK but callback == nullptr, "
		"pid: %d, session id: %d",
		__func__, pid, sessionId),
		__func__);
		}
		break;
		case TRANSFER_OBTAIN:
		case TRANSFER_SYNC:
		break;
		default:
		errorMessage = StringPrintf("%s: Invalid transfer type %d", __func__, mTransfer);
		status = BAD_VALUE;
		goto error;
		return logIfErrorAndReturnStatus(
		BAD_VALUE,
		StringPrintf("%s: Invalid transfer type %d, pid: %d, session id: %d", __func__,
		mTransfer, pid, sessionId),
		__func__);
		}

		// invariant that mAudioRecord != 0 is true only after set() returns successfully
		if (mAudioRecord != 0) {
		errorMessage = StringPrintf("%s: Track already in use", __func__);
		status = INVALID_OPERATION;
		goto error;
		return logIfErrorAndReturnStatus(
		INVALID_OPERATION,
		StringPrintf("%s: Track already in use, pid: %d, session id: %d", __func__, pid,
		sessionId),
		__func__);
		}

		if (!audio_is_valid_format(mFormat)) {
		errorMessage = StringPrintf("%s: Format %#x is not valid", __func__, mFormat);
		status = BAD_VALUE;
		goto error;
		return logIfErrorAndReturnStatus(
		BAD_VALUE,
		StringPrintf("%s: Format %#x is not valid, pid: %d, session id: %d", __func__,
		mFormat, pid, sessionId),
		__func__);
		}

		if (!audio_is_input_channel(mChannelMask)) {
		errorMessage = StringPrintf("%s: Invalid channel mask %#x", __func__, mChannelMask);
		status = BAD_VALUE;
		goto error;
		return logIfErrorAndReturnStatus(
		BAD_VALUE,
		StringPrintf("%s: Invalid channel mask %#x, pid: %d, session id: %d", __func__,
		mChannelMask, pid, sessionId),
		__func__);
		}

		mChannelCount = audio_channel_count_from_in_mask(mChannelMask);
		@@ -369,7 +404,8 @@ status_t AudioRecord::set(
		mAudioRecordThread.clear();
		}
		// bypass error message to avoid logging twice (createRecord_l logs the error).
		goto exit;
		mStatus = status;
		return mStatus;
		}

		// TODO: add audio hardware input latency here
		@@ -385,15 +421,7 @@ status_t AudioRecord::set(
		mFramesRead = 0;
		mFramesReadServerOffset = 0;

		error:
		if (status != NO_ERROR) {
		mMediaMetrics.markError(status, __FUNCTION__);
		ALOGE_IF(!errorMessage.empty(), "%s", errorMessage.c_str());
		reportError(status, AMEDIAMETRICS_PROP_EVENT_VALUE_CREATE, errorMessage.c_str());
		}
		exit:
		mStatus = status;
		return status;
		return logIfErrorAndReturnStatus(status, "", __func__);
		}

		// -------------------------------------------------------------------------
		@@ -772,12 +800,10 @@ status_t AudioRecord::createRecord_l(const Modulo<uint32_t> &epoch)
		status_t status;
		static const int32_t kMaxCreateAttempts = 3;
		int32_t remainingAttempts = kMaxCreateAttempts;
		std::string errorMessage;

		if (audioFlinger == 0) {
		errorMessage = StringPrintf("%s(%d): Could not get audioflinger", __func__, mPortId);
		status = NO_INIT;
		goto exit;
		return logIfErrorAndReturnStatus(
		NO_INIT, StringPrintf("%s(%d): Could not get audioflinger", __func__, mPortId), "");
		}

		// mFlags (not mOrigFlags) is modified depending on whether fast request is accepted.
		@@ -835,16 +861,34 @@ status_t AudioRecord::createRecord_l(const Modulo<uint32_t> &epoch)

		do {
		media::CreateRecordResponse response;
		status = audioFlinger->createRecord(VALUE_OR_FATAL(input.toAidl()), response);
		output = VALUE_OR_FATAL(IAudioFlinger::CreateRecordOutput::fromAidl(response));
		auto aidlInput = input.toAidl();
		if (!aidlInput.ok()) {
		return logIfErrorAndReturnStatus(
		BAD_VALUE,
		StringPrintf("%s(%d): Could not create record due to invalid input", __func__,
		mPortId),
		"");
		}
		status = audioFlinger->createRecord(aidlInput.value(), response);

		auto recordOutput = IAudioFlinger::CreateRecordOutput::fromAidl(response);
		if (!recordOutput.ok()) {
		return logIfErrorAndReturnStatus(
		BAD_VALUE,
		StringPrintf("%s(%d): Could not create record output due to invalid response",
		__func__, mPortId),
		"");
		}
		output = recordOutput.value();
		if (status == NO_ERROR) {
		break;
		}
		if (status != FAILED_TRANSACTION \|\| --remainingAttempts <= 0) {
		errorMessage = StringPrintf(
		"%s(%d): AudioFlinger could not create record track, status: %d",
		__func__, mPortId, status);
		goto exit;
		return logIfErrorAndReturnStatus(
		status,
		StringPrintf("%s(%d): AudioFlinger could not create record track, status: %d",
		__func__, mPortId, status),
		"");
		}
		// FAILED_TRANSACTION happens under very specific conditions causing a state mismatch
		// between audio policy manager and audio flinger during the input stream open sequence
		@@ -879,9 +923,9 @@ status_t AudioRecord::createRecord_l(const Modulo<uint32_t> &epoch)
		mHalFormat = output.halConfig.format;

		if (output.cblk == 0) {
		errorMessage = StringPrintf("%s(%d): Could not get control block", __func__, mPortId);
		status = NO_INIT;
		goto exit;
		return logIfErrorAndReturnStatus(
		NO_INIT, StringPrintf("%s(%d): Could not get control block", __func__, mPortId),
		"");
		}
		// TODO: Using unsecurePointer() has some associated security pitfalls
		// (see declaration for details).
		@@ -889,10 +933,9 @@ status_t AudioRecord::createRecord_l(const Modulo<uint32_t> &epoch)
		// issue (e.g. by copying).
		iMemPointer = output.cblk ->unsecurePointer();
		if (iMemPointer == NULL) {
		errorMessage = StringPrintf(
		"%s(%d): Could not get control block pointer", __func__, mPortId);
		status = NO_INIT;
		goto exit;
		return logIfErrorAndReturnStatus(
		NO_INIT,
		StringPrintf("%s(%d): Could not get control block pointer", __func__, mPortId), "");
		}
		cblk = static_cast<audio_track_cblk_t*>(iMemPointer);

		@@ -909,10 +952,9 @@ status_t AudioRecord::createRecord_l(const Modulo<uint32_t> &epoch)
		// issue (e.g. by copying).
		buffers = output.buffers->unsecurePointer();
		if (buffers == NULL) {
		errorMessage = StringPrintf(
		"%s(%d): Could not get buffer pointer", __func__, mPortId);
		status = NO_INIT;
		goto exit;
		return logIfErrorAndReturnStatus(
		NO_INIT,
		StringPrintf("%s(%d): Could not get buffer pointer", __func__, mPortId), "");
		}
		}

		@@ -1004,15 +1046,8 @@ status_t AudioRecord::createRecord_l(const Modulo<uint32_t> &epoch)
		.set(AMEDIAMETRICS_PROP_SELECTEDMICFIELDDIRECTION, (double)mSelectedMicFieldDimension)
		.record();

		exit:
		if (status != NO_ERROR) {
		ALOGE_IF(!errorMessage.empty(), "%s", errorMessage.c_str());
		reportError(status, AMEDIAMETRICS_PROP_EVENT_VALUE_CREATE, errorMessage.c_str());
		}

		mStatus = status;
		// sp<IAudioTrack> track destructor will cause releaseOutput() to be called by AudioFlinger
		return status;
		return logIfErrorAndReturnStatus(status, "", "");
		}

		// Report error associated with the event and some configuration details.

media/libaudioclient/AudioTrack.cpp

+133 −105

File changed.

Preview size limit exceeded, changes collapsed.

media/libaudioclient/include/media/AudioRecord.h

+6 −0

Original line number	Diff line number	Diff line
		@@ -138,6 +138,12 @@ public:
		audio_format_t format,
		audio_channel_mask_t channelMask);

		/* Checks for erroneous status, marks error in MediaMetrics, logs the error message.
		* Updates and returns mStatus.
		*/
		status_t logIfErrorAndReturnStatus(status_t status, const std::string& errorMessage,
		const std::string& func);

		/* How data is transferred from AudioRecord
		*/
		enum transfer_type {

media/libaudioclient/include/media/AudioTrack.h

+6 −2

Original line number	Diff line number	Diff line
		@@ -233,8 +233,7 @@ public:
		* FIXME This API assumes a route, and so should be deprecated.
		*/

		static status_t getMinFrameCount(size_t* frameCount,
		audio_stream_type_t streamType,
		static status_t getMinFrameCount(size_t* frameCount, audio_stream_type_t streamType,
		uint32_t sampleRate);

		/* Check if direct playback is possible for the given audio configuration and attributes.
		@@ -243,6 +242,11 @@ public:
		static bool isDirectOutputSupported(const audio_config_base_t& config,
		const audio_attributes_t& attributes);

		/* Checks for erroneous status, logs the error message.
		* Updates and returns mStatus.
		*/
		status_t logIfErrorAndReturnStatus(status_t status, const std::string& errorMessage);

		/* How data is transferred to AudioTrack
		*/
		enum transfer_type {