Merge changes If71ca8d8,I67b27425 into sc-dev
* changes:
Added audiopolicy_fuzzer
Added audioflinger_fuzzer
diff --git a/media/libaudioclient/fuzzer/Android.bp b/media/libaudioclient/fuzzer/Android.bp
new file mode 100644
index 0000000..edfc5a5
--- /dev/null
+++ b/media/libaudioclient/fuzzer/Android.bp
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+cc_fuzz {
+ name: "audioflinger_fuzzer",
+ srcs: [
+ "audioflinger_fuzzer.cpp",
+ ],
+ static_libs: [
+ "android.hardware.audio.common@7.0-enums",
+ "effect-aidl-unstable-cpp",
+ "libaudioclient",
+ "libbase",
+ "libcgrouprc",
+ "libcgrouprc_format",
+ "libcutils",
+ "libjsoncpp",
+ "liblog",
+ "libmediametrics",
+ "libmediametricsservice",
+ "libmedia_helper",
+ "libprocessgroup",
+ "shared-file-region-aidl-unstable-cpp",
+ ],
+ shared_libs: [
+ "android.hardware.audio.common-util",
+ "audioclient-types-aidl-unstable-cpp",
+ "audioflinger-aidl-unstable-cpp",
+ "audiopolicy-aidl-unstable-cpp",
+ "audiopolicy-types-aidl-unstable-cpp",
+ "av-types-aidl-unstable-cpp",
+ "capture_state_listener-aidl-unstable-cpp",
+ "libaudioclient_aidl_conversion",
+ "libaudioflinger",
+ "libaudiofoundation",
+ "libaudiomanager",
+ "libaudiopolicy",
+ "libaudioutils",
+ "libbinder",
+ "libdl",
+ "libmediautils",
+ "libnblog",
+ "libutils",
+ "libxml2",
+ "mediametricsservice-aidl-unstable-cpp",
+ ],
+ header_libs: [
+ "libaudiofoundation_headers",
+ "libmedia_headers",
+ ],
+ fuzz_config: {
+ cc: [
+ "android-media-fuzzing-reports@google.com",
+ ],
+ componentid: 155276,
+ },
+}
diff --git a/media/libaudioclient/fuzzer/README.md b/media/libaudioclient/fuzzer/README.md
new file mode 100644
index 0000000..ada6c49
--- /dev/null
+++ b/media/libaudioclient/fuzzer/README.md
@@ -0,0 +1,80 @@
+# Fuzzer for libaudioflinger
+
+## Plugin Design Considerations
+The fuzzer plugin for libaudioflinger is designed based on the understanding of the
+library and tries to achieve the following:
+
+##### Maximize code coverage
+The configuration parameters are not hardcoded, but instead selected based on
+incoming data. This ensures more code paths are reached by the fuzzer. The fuzzer
+covers libaudioflinger APIs as called from libaudioclient through IPC.
+
+libaudioflinger supports the following parameters:
+1. Unique IDs (parameter name: `uniqueId`)
+2. Audio Mode (parameter name: `mode`)
+3. Session ID (parameter name: `sessionId`)
+4. Encapsulation Mode (parameter name: `encapsulationMode`)
+5. Audio Port Role (parameter name: `portRole`)
+6. Audio Port Type (parameter name: `portType`)
+7. Audio Stream Type (parameter name: `streamType`)
+8. Audio Format (parameter name: `format`)
+9. Audio Channel Mask (parameter name: `channelMask`)
+10. Usage (parameter name: `usage`)
+11. Audio Content Type (parameter name: `contentType`)
+12. Input Source (parameter name: `inputSource`)
+13. Input Flags (parameter name: `inputFlags`)
+14. Output Flags (parameter name: `outputFlags`)
+15. Audio Gain Mode (parameter name: `gainMode`)
+16. Audio Device (parameter name: `device`)
+
+| Parameter| Valid Values| Configured Value|
+|------------- |-------------| ----- |
+| `uniqueId` | 0. `AUDIO_UNIQUE_ID_USE_UNSPECIFIED` 1. `AUDIO_UNIQUE_ID_USE_SESSION` 2. `AUDIO_UNIQUE_ID_USE_MODULE` 3. `AUDIO_UNIQUE_ID_USE_EFFECT` 4. `AUDIO_UNIQUE_ID_USE_PATCH` 5. `AUDIO_UNIQUE_ID_USE_OUTPUT` 6. `AUDIO_UNIQUE_ID_USE_INPUT` 7. `AUDIO_UNIQUE_ID_USE_CLIENT` 8. `AUDIO_UNIQUE_ID_USE_MAX` | Value obtained from FuzzedDataProvider
+| `mode` | 0.`AUDIO_MODE_INVALID` 1. `AUDIO_MODE_CURRENT` 2. ` AUDIO_MODE_NORMAL` 3. `AUDIO_MODE_RINGTONE` 4. `AUDIO_MODE_IN_CALL` 5. `AUDIO_MODE_IN_COMMUNICATION` 6. `AUDIO_MODE_CALL_SCREEN` | Value obtained from FuzzedDataProvider|
+| `sessionId` | 0. `AUDIO_SESSION_NONE` 1. `AUDIO_SESSION_OUTPUT_STAGE` 2. `AUDIO_SESSION_DEVICE` | Value obtained from FuzzedDataProvider|
+| `encapsulationMode` | 0. `AUDIO_ENCAPSULATION_MODE_NONE` 1. `AUDIO_ENCAPSULATION_MODE_ELEMENTARY_STREAM` 2. `AUDIO_ENCAPSULATION_MODE_HANDLE` | Value obtained from FuzzedDataProvider|
+| `portRole` | 0. `AUDIO_PORT_ROLE_NONE` 1. `AUDIO_PORT_ROLE_SOURCE` 2. `AUDIO_PORT_ROLE_SINK` | Value obtained from FuzzedDataProvider|
+| `portType` | 0. `AUDIO_PORT_TYPE_NONE` 1. `AUDIO_PORT_TYPE_DEVICE` 2. `AUDIO_PORT_TYPE_MIX` 3. `AUDIO_PORT_TYPE_SESSION`| Value obtained from FuzzedDataProvider|
+| `streamType` | 15 values of type `audio_stream_type_t` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
+| `format` | 77 values of type `audio_format_t` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
+| `channelMask` | 83 values of type `audio_channel_mask_t` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
+| `usage` | 22 values of type `audio_usage_t` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
+| `contentType` | 5 values of type `audio_content_type_t` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
+| `inputSource` | 14 values of type `audio_source_t` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
+| `inputFlags` | 9 values of type `audio_input_flags_t` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
+| `outputFlags` | 16 values of type `audio_output_flags_t` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
+| `gainMode` | 3 values of type `audio_gain_mode_t` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
+| `device` | 66 values of type `audio_devices_t` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
+
+This also ensures that the plugin is always deterministic for any given input.
+
+##### Maximize utilization of input data
+The plugin tolerates any kind of input (empty, huge,
+malformed, etc) and doesn't `exit()` on any input and thereby increasing the
+chance of identifying vulnerabilities.
+
+## Build
+
+This describes steps to build audioflinger_fuzzer binary.
+
+### Android
+
+#### Steps to build
+Build the fuzzer
+```
+ $ mm -j$(nproc) audioflinger_fuzzer
+```
+
+#### Steps to run
+Create a directory CORPUS_DIR and copy some files to that folder
+Push this directory to device.
+
+To run on device
+```
+ $ adb sync data
+ $ adb shell /data/fuzz/arm64/audioflinger_fuzzer/audioflinger_fuzzer CORPUS_DIR
+```
+
+## References:
+ * http://llvm.org/docs/LibFuzzer.html
+ * https://github.co
diff --git a/media/libaudioclient/fuzzer/audioflinger_fuzzer.cpp b/media/libaudioclient/fuzzer/audioflinger_fuzzer.cpp
new file mode 100644
index 0000000..db2b0b8
--- /dev/null
+++ b/media/libaudioclient/fuzzer/audioflinger_fuzzer.cpp
@@ -0,0 +1,730 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+/**
+ * NOTE
+ * 1) The input to AudioFlinger binder calls are fuzzed in this fuzzer
+ * 2) AudioFlinger crashes due to the fuzzer are detected by the
+ Binder DeathRecipient, where the fuzzer aborts if AudioFlinger dies
+ */
+
+#include <android_audio_policy_configuration_V7_0-enums.h>
+#include <binder/IServiceManager.h>
+#include <binder/MemoryDealer.h>
+#include <media/AudioEffect.h>
+#include <media/AudioRecord.h>
+#include <media/AudioSystem.h>
+#include <media/AudioTrack.h>
+#include <media/IAudioFlinger.h>
+#include "fuzzer/FuzzedDataProvider.h"
+
+#define MAX_STRING_LENGTH 256
+#define MAX_ARRAY_LENGTH 256
+
+using namespace std;
+using namespace android;
+
+namespace xsd {
+using namespace ::android::audio::policy::configuration::V7_0;
+}
+
+constexpr audio_unique_id_use_t kUniqueIds[] = {
+ AUDIO_UNIQUE_ID_USE_UNSPECIFIED, AUDIO_UNIQUE_ID_USE_SESSION, AUDIO_UNIQUE_ID_USE_MODULE,
+ AUDIO_UNIQUE_ID_USE_EFFECT, AUDIO_UNIQUE_ID_USE_PATCH, AUDIO_UNIQUE_ID_USE_OUTPUT,
+ AUDIO_UNIQUE_ID_USE_INPUT, AUDIO_UNIQUE_ID_USE_CLIENT, AUDIO_UNIQUE_ID_USE_MAX,
+};
+
+constexpr audio_mode_t kModes[] = {
+ AUDIO_MODE_INVALID, AUDIO_MODE_CURRENT, AUDIO_MODE_NORMAL, AUDIO_MODE_RINGTONE,
+ AUDIO_MODE_IN_CALL, AUDIO_MODE_IN_COMMUNICATION, AUDIO_MODE_CALL_SCREEN};
+
+constexpr audio_session_t kSessionId[] = {AUDIO_SESSION_NONE, AUDIO_SESSION_OUTPUT_STAGE,
+ AUDIO_SESSION_DEVICE};
+
+constexpr audio_encapsulation_mode_t kEncapsulation[] = {
+ AUDIO_ENCAPSULATION_MODE_NONE,
+ AUDIO_ENCAPSULATION_MODE_ELEMENTARY_STREAM,
+ AUDIO_ENCAPSULATION_MODE_HANDLE,
+};
+
+constexpr audio_port_role_t kPortRoles[] = {
+ AUDIO_PORT_ROLE_NONE,
+ AUDIO_PORT_ROLE_SOURCE,
+ AUDIO_PORT_ROLE_SINK,
+};
+
+constexpr audio_port_type_t kPortTypes[] = {
+ AUDIO_PORT_TYPE_NONE,
+ AUDIO_PORT_TYPE_DEVICE,
+ AUDIO_PORT_TYPE_MIX,
+ AUDIO_PORT_TYPE_SESSION,
+};
+
+template <typename T, typename X, typename FUNC>
+std::vector<T> getFlags(const xsdc_enum_range<X> &range, const FUNC &func,
+ const std::string &findString = {}) {
+ std::vector<T> vec;
+ for (const auto &xsdEnumVal : range) {
+ T enumVal;
+ std::string enumString = toString(xsdEnumVal);
+ if (enumString.find(findString) != std::string::npos &&
+ func(enumString.c_str(), &enumVal)) {
+ vec.push_back(enumVal);
+ }
+ }
+ return vec;
+}
+
+static const std::vector<audio_stream_type_t> kStreamtypes =
+ getFlags<audio_stream_type_t, xsd::AudioStreamType, decltype(audio_stream_type_from_string)>(
+ xsdc_enum_range<xsd::AudioStreamType>{}, audio_stream_type_from_string);
+
+static const std::vector<audio_format_t> kFormats =
+ getFlags<audio_format_t, xsd::AudioFormat, decltype(audio_format_from_string)>(
+ xsdc_enum_range<xsd::AudioFormat>{}, audio_format_from_string);
+
+static const std::vector<audio_channel_mask_t> kChannelMasks =
+ getFlags<audio_channel_mask_t, xsd::AudioChannelMask, decltype(audio_channel_mask_from_string)>(
+ xsdc_enum_range<xsd::AudioChannelMask>{}, audio_channel_mask_from_string);
+
+static const std::vector<audio_usage_t> kUsages =
+ getFlags<audio_usage_t, xsd::AudioUsage, decltype(audio_usage_from_string)>(
+ xsdc_enum_range<xsd::AudioUsage>{}, audio_usage_from_string);
+
+static const std::vector<audio_content_type_t> kContentType =
+ getFlags<audio_content_type_t, xsd::AudioContentType, decltype(audio_content_type_from_string)>(
+ xsdc_enum_range<xsd::AudioContentType>{}, audio_content_type_from_string);
+
+static const std::vector<audio_source_t> kInputSources =
+ getFlags<audio_source_t, xsd::AudioSource, decltype(audio_source_from_string)>(
+ xsdc_enum_range<xsd::AudioSource>{}, audio_source_from_string);
+
+static const std::vector<audio_gain_mode_t> kGainModes =
+ getFlags<audio_gain_mode_t, xsd::AudioGainMode, decltype(audio_gain_mode_from_string)>(
+ xsdc_enum_range<xsd::AudioGainMode>{}, audio_gain_mode_from_string);
+
+static const std::vector<audio_devices_t> kDevices =
+ getFlags<audio_devices_t, xsd::AudioDevice, decltype(audio_device_from_string)>(
+ xsdc_enum_range<xsd::AudioDevice>{}, audio_device_from_string);
+
+static const std::vector<audio_input_flags_t> kInputFlags =
+ getFlags<audio_input_flags_t, xsd::AudioInOutFlag, decltype(audio_input_flag_from_string)>(
+ xsdc_enum_range<xsd::AudioInOutFlag>{}, audio_input_flag_from_string, "_INPUT_");
+
+static const std::vector<audio_output_flags_t> kOutputFlags =
+ getFlags<audio_output_flags_t, xsd::AudioInOutFlag, decltype(audio_output_flag_from_string)>(
+ xsdc_enum_range<xsd::AudioInOutFlag>{}, audio_output_flag_from_string, "_OUTPUT_");
+
+template <typename T, size_t size>
+T getValueFromArray(FuzzedDataProvider *fdp, const T (&arr)[size]) {
+ return arr[fdp->ConsumeIntegralInRange<int32_t>(0, size - 1)];
+}
+
+template <typename T, size_t size>
+T getValue(FuzzedDataProvider *fdp, const T (&arr)[size]) {
+ if (fdp->ConsumeBool()) {
+ return static_cast<T>(fdp->ConsumeIntegral<int32_t>());
+ }
+ return getValueFromArray(fdp, arr);
+}
+
+template <typename T>
+T getValueFromVector(FuzzedDataProvider *fdp, std::vector<T> vec) {
+ return vec[fdp->ConsumeIntegralInRange<int32_t>(0, vec.size() - 1)];
+}
+
+template <typename T>
+T getValue(FuzzedDataProvider *fdp, std::vector<T> vec) {
+ if (fdp->ConsumeBool()) {
+ return static_cast<T>(fdp->ConsumeIntegral<int32_t>());
+ }
+ return getValueFromVector(fdp, vec);
+}
+
+class DeathNotifier : public IBinder::DeathRecipient {
+ public:
+ void binderDied(const wp<IBinder> &) { abort(); }
+};
+
+class AudioFlingerFuzzer {
+ public:
+ AudioFlingerFuzzer(const uint8_t *data, size_t size);
+ void process();
+
+ private:
+ FuzzedDataProvider mFdp;
+ void invokeAudioTrack();
+ void invokeAudioRecord();
+ status_t invokeAudioEffect();
+ void invokeAudioSystem();
+ status_t invokeAudioInputDevice();
+ status_t invokeAudioOutputDevice();
+ void invokeAudioPatch();
+
+ sp<DeathNotifier> mDeathNotifier;
+};
+
+AudioFlingerFuzzer::AudioFlingerFuzzer(const uint8_t *data, size_t size) : mFdp(data, size) {
+ sp<IServiceManager> sm = defaultServiceManager();
+ sp<IBinder> binder = sm->getService(String16("media.audio_flinger"));
+ if (binder == nullptr) {
+ return;
+ }
+ mDeathNotifier = new DeathNotifier();
+ binder->linkToDeath(mDeathNotifier);
+}
+
+void AudioFlingerFuzzer::invokeAudioTrack() {
+ uint32_t sampleRate = mFdp.ConsumeIntegral<uint32_t>();
+ audio_format_t format = getValue(&mFdp, kFormats);
+ audio_channel_mask_t channelMask = getValue(&mFdp, kChannelMasks);
+ size_t frameCount = static_cast<size_t>(mFdp.ConsumeIntegral<uint32_t>());
+ int32_t notificationFrames = mFdp.ConsumeIntegral<int32_t>();
+ uint32_t useSharedBuffer = mFdp.ConsumeBool();
+ audio_output_flags_t flags = getValue(&mFdp, kOutputFlags);
+ audio_session_t sessionId = getValue(&mFdp, kSessionId);
+ audio_usage_t usage = getValue(&mFdp, kUsages);
+ audio_content_type_t contentType = getValue(&mFdp, kContentType);
+ audio_attributes_t attributes = {};
+ sp<IMemory> sharedBuffer;
+ sp<MemoryDealer> heap = nullptr;
+ audio_offload_info_t offloadInfo = AUDIO_INFO_INITIALIZER;
+
+ bool offload = false;
+ bool fast = ((flags & AUDIO_OUTPUT_FLAG_FAST) != 0);
+
+ if (useSharedBuffer != 0) {
+ size_t heapSize = audio_channel_count_from_out_mask(channelMask) *
+ audio_bytes_per_sample(format) * frameCount;
+ heap = new MemoryDealer(heapSize, "AudioTrack Heap Base");
+ sharedBuffer = heap->allocate(heapSize);
+ frameCount = 0;
+ notificationFrames = 0;
+ }
+ if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) {
+ offloadInfo.sample_rate = sampleRate;
+ offloadInfo.channel_mask = channelMask;
+ offloadInfo.format = format;
+ offload = true;
+ }
+
+ attributes.content_type = contentType;
+ attributes.usage = usage;
+ sp<AudioTrack> track = new AudioTrack();
+
+ track->set(AUDIO_STREAM_DEFAULT, sampleRate, format, channelMask, frameCount, flags, nullptr,
+ nullptr, notificationFrames, sharedBuffer, false, sessionId,
+ ((fast && sharedBuffer == 0) || offload) ? AudioTrack::TRANSFER_CALLBACK
+ : AudioTrack::TRANSFER_DEFAULT,
+ offload ? &offloadInfo : nullptr, getuid(), getpid(), &attributes, false, 1.0f,
+ AUDIO_PORT_HANDLE_NONE);
+
+ status_t status = track->initCheck();
+ if (status != NO_ERROR) {
+ track.clear();
+ return;
+ }
+ track->getSampleRate();
+ track->latency();
+ track->getUnderrunCount();
+ track->streamType();
+ track->channelCount();
+ track->getNotificationPeriodInFrames();
+ uint32_t bufferSizeInFrames = mFdp.ConsumeIntegral<uint32_t>();
+ track->setBufferSizeInFrames(bufferSizeInFrames);
+ track->getBufferSizeInFrames();
+
+ int64_t duration = mFdp.ConsumeIntegral<int64_t>();
+ track->getBufferDurationInUs(&duration);
+ sp<IMemory> sharedBuffer2 = track->sharedBuffer();
+ track->setCallerName(mFdp.ConsumeRandomLengthString(MAX_STRING_LENGTH));
+
+ track->setVolume(mFdp.ConsumeFloatingPoint<float>(), mFdp.ConsumeFloatingPoint<float>());
+ track->setVolume(mFdp.ConsumeFloatingPoint<float>());
+ track->setAuxEffectSendLevel(mFdp.ConsumeFloatingPoint<float>());
+
+ float auxEffectSendLevel;
+ track->getAuxEffectSendLevel(&auxEffectSendLevel);
+ track->setSampleRate(mFdp.ConsumeIntegral<uint32_t>());
+ track->getSampleRate();
+ track->getOriginalSampleRate();
+
+ AudioPlaybackRate playbackRate = {};
+ playbackRate.mSpeed = mFdp.ConsumeFloatingPoint<float>();
+ playbackRate.mPitch = mFdp.ConsumeFloatingPoint<float>();
+ track->setPlaybackRate(playbackRate);
+ track->getPlaybackRate();
+ track->setLoop(mFdp.ConsumeIntegral<uint32_t>(), mFdp.ConsumeIntegral<uint32_t>(),
+ mFdp.ConsumeIntegral<uint32_t>());
+ track->setMarkerPosition(mFdp.ConsumeIntegral<uint32_t>());
+
+ uint32_t marker = {};
+ track->getMarkerPosition(&marker);
+ track->setPositionUpdatePeriod(mFdp.ConsumeIntegral<uint32_t>());
+
+ uint32_t updatePeriod = {};
+ track->getPositionUpdatePeriod(&updatePeriod);
+ track->setPosition(mFdp.ConsumeIntegral<uint32_t>());
+ uint32_t position = {};
+ track->getPosition(&position);
+ track->getBufferPosition(&position);
+ track->reload();
+ track->start();
+ track->pause();
+ track->flush();
+ track->stop();
+ track->stopped();
+}
+
+void AudioFlingerFuzzer::invokeAudioRecord() {
+ int32_t notificationFrames = mFdp.ConsumeIntegral<int32_t>();
+ uint32_t sampleRate = mFdp.ConsumeIntegral<uint32_t>();
+ size_t frameCount = static_cast<size_t>(mFdp.ConsumeIntegral<uint32_t>());
+ audio_format_t format = getValue(&mFdp, kFormats);
+ audio_channel_mask_t channelMask = getValue(&mFdp, kChannelMasks);
+ audio_input_flags_t flags = getValue(&mFdp, kInputFlags);
+ audio_session_t sessionId = getValue(&mFdp, kSessionId);
+ audio_source_t inputSource = getValue(&mFdp, kInputSources);
+
+ audio_attributes_t attributes = {};
+ bool fast = ((flags & AUDIO_OUTPUT_FLAG_FAST) != 0);
+
+ attributes.source = inputSource;
+
+ sp<AudioRecord> record = new AudioRecord(String16(mFdp.ConsumeRandomLengthString().c_str()));
+ record->set(AUDIO_SOURCE_DEFAULT, sampleRate, format, channelMask, frameCount, nullptr, nullptr,
+ notificationFrames, false, sessionId,
+ fast ? AudioRecord::TRANSFER_CALLBACK : AudioRecord::TRANSFER_DEFAULT, flags,
+ getuid(), getpid(), &attributes, AUDIO_PORT_HANDLE_NONE);
+ status_t status = record->initCheck();
+ if (status != NO_ERROR) {
+ return;
+ }
+ record->latency();
+ record->format();
+ record->channelCount();
+ record->frameCount();
+ record->frameSize();
+ record->inputSource();
+ record->getNotificationPeriodInFrames();
+ record->start();
+ record->stop();
+ record->stopped();
+
+ uint32_t marker = mFdp.ConsumeIntegral<uint32_t>();
+ record->setMarkerPosition(marker);
+ record->getMarkerPosition(&marker);
+
+ uint32_t updatePeriod = mFdp.ConsumeIntegral<uint32_t>();
+ record->setPositionUpdatePeriod(updatePeriod);
+ record->getPositionUpdatePeriod(&updatePeriod);
+
+ uint32_t position;
+ record->getPosition(&position);
+
+ ExtendedTimestamp timestamp;
+ record->getTimestamp(×tamp);
+ record->getSessionId();
+ record->getCallerName();
+ android::AudioRecord::Buffer audioBuffer;
+ int32_t waitCount = mFdp.ConsumeIntegral<int32_t>();
+ size_t nonContig = static_cast<size_t>(mFdp.ConsumeIntegral<uint32_t>());
+ audioBuffer.frameCount = static_cast<size_t>(mFdp.ConsumeIntegral<uint32_t>());
+ record->obtainBuffer(&audioBuffer, waitCount, &nonContig);
+ bool blocking = false;
+ record->read(audioBuffer.raw, audioBuffer.size, blocking);
+ record->getInputFramesLost();
+ record->getFlags();
+
+ std::vector<media::MicrophoneInfo> activeMicrophones;
+ record->getActiveMicrophones(&activeMicrophones);
+ record->releaseBuffer(&audioBuffer);
+
+ audio_port_handle_t deviceId =
+ static_cast<audio_port_handle_t>(mFdp.ConsumeIntegral<int32_t>());
+ record->setInputDevice(deviceId);
+ record->getInputDevice();
+ record->getRoutedDeviceId();
+ record->getPortId();
+}
+
+struct EffectClient : public android::media::BnEffectClient {
+ EffectClient() {}
+ binder::Status controlStatusChanged(bool controlGranted __unused) override {
+ return binder::Status::ok();
+ }
+ binder::Status enableStatusChanged(bool enabled __unused) override {
+ return binder::Status::ok();
+ }
+ binder::Status commandExecuted(int32_t cmdCode __unused,
+ const std::vector<uint8_t> &cmdData __unused,
+ const std::vector<uint8_t> &replyData __unused) override {
+ return binder::Status::ok();
+ }
+};
+
+status_t AudioFlingerFuzzer::invokeAudioEffect() {
+ effect_uuid_t type;
+ type.timeLow = mFdp.ConsumeIntegral<uint32_t>();
+ type.timeMid = mFdp.ConsumeIntegral<uint16_t>();
+ type.timeHiAndVersion = mFdp.ConsumeIntegral<uint16_t>();
+ type.clockSeq = mFdp.ConsumeIntegral<uint16_t>();
+ for (int i = 0; i < 6; ++i) {
+ type.node[i] = mFdp.ConsumeIntegral<uint8_t>();
+ }
+
+ effect_descriptor_t descriptor = {};
+ descriptor.type = type;
+ descriptor.uuid = *EFFECT_UUID_NULL;
+
+ sp<EffectClient> effectClient(new EffectClient());
+
+ const int32_t priority = mFdp.ConsumeIntegral<int32_t>();
+ audio_session_t sessionId = static_cast<audio_session_t>(mFdp.ConsumeIntegral<int32_t>());
+ const audio_io_handle_t io = mFdp.ConsumeIntegral<int32_t>();
+ String16 opPackageName = static_cast<String16>(mFdp.ConsumeRandomLengthString().c_str());
+ AudioDeviceTypeAddr device;
+
+ sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
+ if (!af) {
+ return NO_ERROR;
+ }
+
+ media::CreateEffectRequest request{};
+ request.desc =
+ VALUE_OR_RETURN_STATUS(legacy2aidl_effect_descriptor_t_EffectDescriptor(descriptor));
+ request.client = effectClient;
+ request.priority = priority;
+ request.output = io;
+ request.sessionId = sessionId;
+ request.device = VALUE_OR_RETURN_STATUS(legacy2aidl_AudioDeviceTypeAddress(device));
+ request.opPackageName = VALUE_OR_RETURN_STATUS(legacy2aidl_String16_string(opPackageName));
+ request.pid = getpid();
+ request.probe = false;
+
+ media::CreateEffectResponse response{};
+ status_t status = af->createEffect(request, &response);
+
+ if (status != OK) {
+ return NO_ERROR;
+ }
+
+ descriptor =
+ VALUE_OR_RETURN_STATUS(aidl2legacy_EffectDescriptor_effect_descriptor_t(response.desc));
+
+ uint32_t numEffects;
+ af->queryNumberEffects(&numEffects);
+
+ uint32_t queryIndex = mFdp.ConsumeIntegral<uint32_t>();
+ af->queryEffect(queryIndex, &descriptor);
+
+ effect_descriptor_t getDescriptor;
+ uint32_t preferredTypeFlag = mFdp.ConsumeIntegral<int32_t>();
+ af->getEffectDescriptor(&descriptor.uuid, &descriptor.type, preferredTypeFlag, &getDescriptor);
+
+ sessionId = static_cast<audio_session_t>(mFdp.ConsumeIntegral<int32_t>());
+ audio_io_handle_t srcOutput = mFdp.ConsumeIntegral<int32_t>();
+ audio_io_handle_t dstOutput = mFdp.ConsumeIntegral<int32_t>();
+ af->moveEffects(sessionId, srcOutput, dstOutput);
+
+ int effectId = mFdp.ConsumeIntegral<int32_t>();
+ sessionId = static_cast<audio_session_t>(mFdp.ConsumeIntegral<int32_t>());
+ af->setEffectSuspended(effectId, sessionId, mFdp.ConsumeBool());
+ return NO_ERROR;
+}
+
+void AudioFlingerFuzzer::invokeAudioSystem() {
+ AudioSystem::muteMicrophone(mFdp.ConsumeBool());
+ AudioSystem::setMasterMute(mFdp.ConsumeBool());
+ AudioSystem::setMasterVolume(mFdp.ConsumeFloatingPoint<float>());
+ AudioSystem::setMasterBalance(mFdp.ConsumeFloatingPoint<float>());
+ AudioSystem::setVoiceVolume(mFdp.ConsumeFloatingPoint<float>());
+
+ float volume;
+ AudioSystem::getMasterVolume(&volume);
+
+ bool state;
+ AudioSystem::getMasterMute(&state);
+ AudioSystem::isMicrophoneMuted(&state);
+
+ audio_stream_type_t stream = getValue(&mFdp, kStreamtypes);
+ AudioSystem::setStreamMute(getValue(&mFdp, kStreamtypes), mFdp.ConsumeBool());
+
+ stream = getValue(&mFdp, kStreamtypes);
+ AudioSystem::setStreamVolume(stream, mFdp.ConsumeFloatingPoint<float>(),
+ mFdp.ConsumeIntegral<int32_t>());
+
+ audio_mode_t mode = getValue(&mFdp, kModes);
+ AudioSystem::setMode(mode);
+
+ size_t frameCount;
+ stream = getValue(&mFdp, kStreamtypes);
+ AudioSystem::getOutputFrameCount(&frameCount, stream);
+
+ uint32_t latency;
+ stream = getValue(&mFdp, kStreamtypes);
+ AudioSystem::getOutputLatency(&latency, stream);
+
+ stream = getValue(&mFdp, kStreamtypes);
+ AudioSystem::getStreamVolume(stream, &volume, mFdp.ConsumeIntegral<int32_t>());
+
+ stream = getValue(&mFdp, kStreamtypes);
+ AudioSystem::getStreamMute(stream, &state);
+
+ uint32_t samplingRate;
+ AudioSystem::getSamplingRate(mFdp.ConsumeIntegral<int32_t>(), &samplingRate);
+
+ AudioSystem::getFrameCount(mFdp.ConsumeIntegral<int32_t>(), &frameCount);
+ AudioSystem::getLatency(mFdp.ConsumeIntegral<int32_t>(), &latency);
+ AudioSystem::setVoiceVolume(mFdp.ConsumeFloatingPoint<float>());
+
+ uint32_t halFrames;
+ uint32_t dspFrames;
+ AudioSystem::getRenderPosition(mFdp.ConsumeIntegral<int32_t>(), &halFrames, &dspFrames);
+
+ AudioSystem::getInputFramesLost(mFdp.ConsumeIntegral<int32_t>());
+ AudioSystem::getInputFramesLost(mFdp.ConsumeIntegral<int32_t>());
+
+ audio_unique_id_use_t uniqueIdUse = getValue(&mFdp, kUniqueIds);
+ AudioSystem::newAudioUniqueId(uniqueIdUse);
+
+ audio_session_t sessionId = getValue(&mFdp, kSessionId);
+ pid_t pid = mFdp.ConsumeBool() ? getpid() : mFdp.ConsumeIntegral<int32_t>();
+ uid_t uid = mFdp.ConsumeBool() ? getuid() : mFdp.ConsumeIntegral<int32_t>();
+ AudioSystem::acquireAudioSessionId(sessionId, pid, uid);
+
+ pid = mFdp.ConsumeBool() ? getpid() : mFdp.ConsumeIntegral<int32_t>();
+ sessionId = getValue(&mFdp, kSessionId);
+ AudioSystem::releaseAudioSessionId(sessionId, pid);
+
+ sessionId = getValue(&mFdp, kSessionId);
+ AudioSystem::getAudioHwSyncForSession(sessionId);
+
+ AudioSystem::systemReady();
+ AudioSystem::getFrameCountHAL(mFdp.ConsumeIntegral<int32_t>(), &frameCount);
+
+ size_t buffSize;
+ uint32_t sampleRate = mFdp.ConsumeIntegral<uint32_t>();
+ audio_format_t format = getValue(&mFdp, kFormats);
+ audio_channel_mask_t channelMask = getValue(&mFdp, kChannelMasks);
+ AudioSystem::getInputBufferSize(sampleRate, format, channelMask, &buffSize);
+
+ AudioSystem::getPrimaryOutputSamplingRate();
+ AudioSystem::getPrimaryOutputFrameCount();
+ AudioSystem::setLowRamDevice(mFdp.ConsumeBool(), mFdp.ConsumeIntegral<int64_t>());
+
+ std::vector<media::MicrophoneInfo> microphones;
+ AudioSystem::getMicrophones(µphones);
+
+ std::vector<pid_t> pids;
+ pids.insert(pids.begin(), getpid());
+ for (int i = 1; i < mFdp.ConsumeIntegralInRange<int32_t>(2, MAX_ARRAY_LENGTH); ++i) {
+ pids.insert(pids.begin() + i, static_cast<pid_t>(mFdp.ConsumeIntegral<int32_t>()));
+ }
+ AudioSystem::setAudioHalPids(pids);
+ sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
+ if (!af) {
+ return;
+ }
+ af->setRecordSilenced(mFdp.ConsumeIntegral<uint32_t>(), mFdp.ConsumeBool());
+
+ float balance = mFdp.ConsumeFloatingPoint<float>();
+ af->getMasterBalance(&balance);
+ af->invalidateStream(static_cast<audio_stream_type_t>(mFdp.ConsumeIntegral<uint32_t>()));
+}
+
+status_t AudioFlingerFuzzer::invokeAudioInputDevice() {
+ sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
+ if (!af) {
+ return NO_ERROR;
+ }
+
+ audio_config_t config = {};
+ audio_module_handle_t module = mFdp.ConsumeIntegral<int32_t>();
+ audio_io_handle_t input = mFdp.ConsumeIntegral<int32_t>();
+ config.frame_count = mFdp.ConsumeIntegral<uint32_t>();
+ String8 address = static_cast<String8>(mFdp.ConsumeRandomLengthString().c_str());
+
+ config.channel_mask = getValue(&mFdp, kChannelMasks);
+ config.format = getValue(&mFdp, kFormats);
+
+ config.offload_info = AUDIO_INFO_INITIALIZER;
+ config.offload_info.bit_rate = mFdp.ConsumeIntegral<uint32_t>();
+ config.offload_info.bit_width = mFdp.ConsumeIntegral<uint32_t>();
+ config.offload_info.content_id = mFdp.ConsumeIntegral<uint32_t>();
+ config.offload_info.channel_mask = getValue(&mFdp, kChannelMasks);
+ config.offload_info.duration_us = mFdp.ConsumeIntegral<int64_t>();
+ config.offload_info.encapsulation_mode = getValue(&mFdp, kEncapsulation);
+ config.offload_info.format = getValue(&mFdp, kFormats);
+ config.offload_info.has_video = mFdp.ConsumeBool();
+ config.offload_info.is_streaming = mFdp.ConsumeBool();
+ config.offload_info.sample_rate = (mFdp.ConsumeIntegral<uint32_t>());
+ config.offload_info.sync_id = mFdp.ConsumeIntegral<uint32_t>();
+ config.offload_info.stream_type = getValue(&mFdp, kStreamtypes);
+ config.offload_info.usage = getValue(&mFdp, kUsages);
+
+ config.sample_rate = mFdp.ConsumeIntegral<uint32_t>();
+
+ audio_devices_t device = getValue(&mFdp, kDevices);
+ audio_source_t source = getValue(&mFdp, kInputSources);
+ audio_input_flags_t flags = getValue(&mFdp, kInputFlags);
+
+ AudioDeviceTypeAddr deviceTypeAddr(device, address.c_str());
+
+ media::OpenInputRequest request{};
+ request.module = VALUE_OR_RETURN_STATUS(legacy2aidl_audio_module_handle_t_int32_t(module));
+ request.input = VALUE_OR_RETURN_STATUS(legacy2aidl_audio_io_handle_t_int32_t(input));
+ request.config = VALUE_OR_RETURN_STATUS(legacy2aidl_audio_config_t_AudioConfig(config));
+ request.device = VALUE_OR_RETURN_STATUS(legacy2aidl_AudioDeviceTypeAddress(deviceTypeAddr));
+ request.source = VALUE_OR_RETURN_STATUS(legacy2aidl_audio_source_t_AudioSourceType(source));
+ request.flags = VALUE_OR_RETURN_STATUS(legacy2aidl_audio_input_flags_t_int32_t_mask(flags));
+
+ media::OpenInputResponse response{};
+ status_t status = af->openInput(request, &response);
+ if (status != NO_ERROR) {
+ return NO_ERROR;
+ }
+
+ input = VALUE_OR_RETURN_STATUS(aidl2legacy_int32_t_audio_module_handle_t(response.input));
+ af->closeInput(input);
+ return NO_ERROR;
+}
+
+status_t AudioFlingerFuzzer::invokeAudioOutputDevice() {
+ sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
+ if (!af) {
+ return NO_ERROR;
+ }
+
+ audio_config_t config = {};
+ audio_module_handle_t module = mFdp.ConsumeIntegral<int32_t>();
+ audio_io_handle_t output = mFdp.ConsumeIntegral<int32_t>();
+ config.frame_count = mFdp.ConsumeIntegral<uint32_t>();
+ String8 address = static_cast<String8>(mFdp.ConsumeRandomLengthString().c_str());
+
+ config.channel_mask = getValue(&mFdp, kChannelMasks);
+
+ config.offload_info = AUDIO_INFO_INITIALIZER;
+ config.offload_info.bit_rate = mFdp.ConsumeIntegral<uint32_t>();
+ config.offload_info.bit_width = mFdp.ConsumeIntegral<uint32_t>();
+ config.offload_info.channel_mask = getValue(&mFdp, kChannelMasks);
+ config.offload_info.content_id = mFdp.ConsumeIntegral<uint32_t>();
+ config.offload_info.duration_us = mFdp.ConsumeIntegral<int64_t>();
+ config.offload_info.encapsulation_mode = getValue(&mFdp, kEncapsulation);
+ config.offload_info.format = getValue(&mFdp, kFormats);
+ config.offload_info.has_video = mFdp.ConsumeBool();
+ config.offload_info.is_streaming = mFdp.ConsumeBool();
+ config.offload_info.sample_rate = mFdp.ConsumeIntegral<uint32_t>();
+ config.offload_info.stream_type = getValue(&mFdp, kStreamtypes);
+ config.offload_info.sync_id = mFdp.ConsumeIntegral<uint32_t>();
+ config.offload_info.usage = getValue(&mFdp, kUsages);
+
+ config.format = getValue(&mFdp, kFormats);
+ config.sample_rate = mFdp.ConsumeIntegral<uint32_t>();
+
+ sp<DeviceDescriptorBase> device = new DeviceDescriptorBase(getValue(&mFdp, kDevices));
+ audio_output_flags_t flags = getValue(&mFdp, kOutputFlags);
+
+ media::OpenOutputRequest request{};
+ media::OpenOutputResponse response{};
+
+ request.module = VALUE_OR_RETURN_STATUS(legacy2aidl_audio_module_handle_t_int32_t(module));
+ request.config = VALUE_OR_RETURN_STATUS(legacy2aidl_audio_config_t_AudioConfig(config));
+ request.device = VALUE_OR_RETURN_STATUS(legacy2aidl_DeviceDescriptorBase(device));
+ request.flags = VALUE_OR_RETURN_STATUS(legacy2aidl_audio_output_flags_t_int32_t_mask(flags));
+
+ status_t status = af->openOutput(request, &response);
+ if (status != NO_ERROR) {
+ return NO_ERROR;
+ }
+ output = VALUE_OR_RETURN_STATUS(aidl2legacy_int32_t_audio_io_handle_t(response.output));
+
+ audio_io_handle_t output1 = mFdp.ConsumeIntegral<int32_t>();
+ af->openDuplicateOutput(output, output1);
+ af->suspendOutput(output);
+ af->restoreOutput(output);
+ af->closeOutput(output);
+ return NO_ERROR;
+}
+
+void AudioFlingerFuzzer::invokeAudioPatch() {
+ sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
+ if (!af) {
+ return;
+ }
+ struct audio_patch patch = {};
+ audio_patch_handle_t handle = mFdp.ConsumeIntegral<int32_t>();
+
+ patch.id = mFdp.ConsumeIntegral<int32_t>();
+ patch.num_sources = mFdp.ConsumeIntegral<uint32_t>();
+ patch.num_sinks = mFdp.ConsumeIntegral<uint32_t>();
+
+ for (int i = 0; i < AUDIO_PATCH_PORTS_MAX; ++i) {
+ patch.sources[i].config_mask = mFdp.ConsumeIntegral<uint32_t>();
+ patch.sources[i].channel_mask = getValue(&mFdp, kChannelMasks);
+ patch.sources[i].format = getValue(&mFdp, kFormats);
+ patch.sources[i].gain.channel_mask = getValue(&mFdp, kChannelMasks);
+ patch.sources[i].gain.index = mFdp.ConsumeIntegral<int32_t>();
+ patch.sources[i].gain.mode = getValue(&mFdp, kGainModes);
+ patch.sources[i].gain.ramp_duration_ms = mFdp.ConsumeIntegral<uint32_t>();
+ patch.sources[i].id = static_cast<audio_format_t>(mFdp.ConsumeIntegral<int32_t>());
+ patch.sources[i].role = getValue(&mFdp, kPortRoles);
+ patch.sources[i].sample_rate = mFdp.ConsumeIntegral<uint32_t>();
+ patch.sources[i].type = getValue(&mFdp, kPortTypes);
+
+ patch.sinks[i].config_mask = mFdp.ConsumeIntegral<uint32_t>();
+ patch.sinks[i].channel_mask = getValue(&mFdp, kChannelMasks);
+ patch.sinks[i].format = getValue(&mFdp, kFormats);
+ patch.sinks[i].gain.channel_mask = getValue(&mFdp, kChannelMasks);
+ patch.sinks[i].gain.index = mFdp.ConsumeIntegral<int32_t>();
+ patch.sinks[i].gain.mode = getValue(&mFdp, kGainModes);
+ patch.sinks[i].gain.ramp_duration_ms = mFdp.ConsumeIntegral<uint32_t>();
+ patch.sinks[i].id = static_cast<audio_format_t>(mFdp.ConsumeIntegral<int32_t>());
+ patch.sinks[i].role = getValue(&mFdp, kPortRoles);
+ patch.sinks[i].sample_rate = mFdp.ConsumeIntegral<uint32_t>();
+ patch.sinks[i].type = getValue(&mFdp, kPortTypes);
+ }
+
+ status_t status = af->createAudioPatch(&patch, &handle);
+ if (status != NO_ERROR) {
+ return;
+ }
+
+ unsigned int num_patches = mFdp.ConsumeIntegral<uint32_t>();
+ struct audio_patch patches = {};
+ af->listAudioPatches(&num_patches, &patches);
+ af->releaseAudioPatch(handle);
+}
+
+void AudioFlingerFuzzer::process() {
+ invokeAudioEffect();
+ invokeAudioInputDevice();
+ invokeAudioOutputDevice();
+ invokeAudioPatch();
+ invokeAudioRecord();
+ invokeAudioSystem();
+ invokeAudioTrack();
+}
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+ if (size < 1) {
+ return 0;
+ }
+ AudioFlingerFuzzer audioFuzzer(data, size);
+ audioFuzzer.process();
+ return 0;
+}
diff --git a/services/audiopolicy/fuzzer/Android.bp b/services/audiopolicy/fuzzer/Android.bp
new file mode 100644
index 0000000..21f6515
--- /dev/null
+++ b/services/audiopolicy/fuzzer/Android.bp
@@ -0,0 +1,55 @@
+/******************************************************************************
+ *
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ ******************************************************************************/
+
+cc_fuzz {
+ name: "audiopolicy_fuzzer",
+ srcs: [
+ "audiopolicy_fuzzer.cpp",
+ ],
+ include_dirs: [
+ "frameworks/av/services/audiopolicy",
+ ],
+ shared_libs: [
+ "android.hardware.audio.common-util",
+ "capture_state_listener-aidl-cpp",
+ "libaudioclient",
+ "libaudiofoundation",
+ "libbase",
+ "libcutils",
+ "libhidlbase",
+ "libdl",
+ "liblog",
+ "libmedia_helper",
+ "libmediametrics",
+ "libutils",
+ "libxml2",
+ "libbinder",
+ "libaudiopolicy",
+ "libaudiopolicymanagerdefault",
+ ],
+ static_libs: [
+ "android.hardware.audio.common@7.0-enums",
+ "libaudiopolicycomponents",
+ ],
+ header_libs: [
+ "libaudiopolicycommon",
+ "libaudiopolicyengine_interface_headers",
+ "libaudiopolicymanager_interface_headers",
+ ],
+ data: [":audiopolicyfuzzer_configuration_files"],
+}
diff --git a/services/audiopolicy/fuzzer/README.md b/services/audiopolicy/fuzzer/README.md
new file mode 100644
index 0000000..08d7213
--- /dev/null
+++ b/services/audiopolicy/fuzzer/README.md
@@ -0,0 +1,63 @@
+# Fuzzer for libaudiopolicy
+
+## Plugin Design Considerations
+The fuzzer plugin for libaudiopolicy is designed based on the
+understanding of the service and tries to achieve the following:
+
+##### Maximize code coverage
+The configuration parameters are not hardcoded, but instead selected based on
+incoming data. This ensures more code paths are reached by the fuzzer.
+
+AudioPolicy APIs contain the following parameters:
+1. AudioFormats
+2. AudioChannelMasks
+3. AudioOutputFlags
+4. AudioDevices
+5. MixTypes
+6. MixRouteFlags
+7. SampleRates
+8. AudioUsages
+9. AudioContentTypes
+10. AudioSources
+11. AudioFlagMasks
+12. AudioPolicyDeviceStates
+
+| Parameter| Valid Input Values| Configured Value|
+|------------- |-------------| ----- |
+| `AudioFormat` | 77 values of type `audio_format_t` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
+| `AudioChannelMask` | 83 values of type `audio_channel_mask_t` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
+| `AudioOutputFlag` | 16 values of type `audio_output_flags_t` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
+| `AudioDevice` | `AUDIO_DEVICE_OUT_AUX_DIGITAL`, `AUDIO_DEVICE_OUT_STUB`, `AUDIO_DEVICE_IN_VOICE_CALL`, `AUDIO_DEVICE_IN_AUX_DIGITAL`, `AUDIO_DEVICE_IN_STUB` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
+| `MixType` | `MIX_TYPE_PLAYERS`, `MIX_TYPE_RECORDERS` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
+| `MixRouteFlag` | `MIX_ROUTE_FLAG_RENDER`, `MIX_ROUTE_FLAG_LOOP_BACK`, `MIX_ROUTE_FLAG_LOOP_BACK_AND_RENDER`, `MIX_ROUTE_FLAG_ALL` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
+| `SampleRate` | `0` to `UINT32_MAX` | Value obtained from FuzzedDataProvider |
+| `AudioUsage` | `AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST`, `AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT`, `AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED`, `AUDIO_USAGE_NOTIFICATION_EVENT` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
+| `AudioContentType` | `AUDIO_CONTENT_TYPE_UNKNOWN`, `AUDIO_CONTENT_TYPE_SPEECH`, `AUDIO_CONTENT_TYPE_MUSIC`, `AUDIO_CONTENT_TYPE_MOVIE`, `AUDIO_CONTENT_TYPE_SONIFICATION` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
+| `AudioSource` | 14 values of type `audio_source_t` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
+| `AudioFlagMask` | 15 values of type `audio_flags_mask_t` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
+| `AudioPolicyDeviceStates` | `AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE`, `AUDIO_POLICY_DEVICE_STATE_AVAILABLE`, `AUDIO_POLICY_DEVICE_STATE_CNT` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
+
+This also ensures that the plugin is always deterministic for any given input.
+
+## Build
+
+This describes steps to build audiopolicy_fuzzer binary.
+
+### Android
+
+#### Steps to build
+Build the fuzzer
+```
+ $ mm -j$(nproc) audiopolicy_fuzzer
+```
+
+#### Steps to run
+To run on device
+```
+ $ adb sync data
+ $ adb shell /data/fuzz/arm64/audiopolicy_fuzzer/audiopolicy_fuzzer
+```
+
+## References:
+ * http://llvm.org/docs/LibFuzzer.html
+ * https://github.com/google/oss-fuzz
diff --git a/services/audiopolicy/fuzzer/audiopolicy_fuzzer.cpp b/services/audiopolicy/fuzzer/audiopolicy_fuzzer.cpp
new file mode 100644
index 0000000..c1f2aa8
--- /dev/null
+++ b/services/audiopolicy/fuzzer/audiopolicy_fuzzer.cpp
@@ -0,0 +1,972 @@
+/******************************************************************************
+ *
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ ******************************************************************************/
+#include <stdint.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <algorithm>
+#include <memory>
+#include <string>
+#include <utility>
+#include <vector>
+
+#include <Serializer.h>
+#include <android-base/file.h>
+#include <libxml/parser.h>
+#include <libxml/xinclude.h>
+#include <media/AudioPolicy.h>
+#include <media/PatchBuilder.h>
+#include <media/RecordingActivityTracker.h>
+
+#include <AudioPolicyInterface.h>
+#include <android_audio_policy_configuration_V7_0-enums.h>
+#include <fuzzer/FuzzedDataProvider.h>
+#include <tests/AudioPolicyManagerTestClient.h>
+#include <tests/AudioPolicyTestClient.h>
+#include <tests/AudioPolicyTestManager.h>
+#include <xsdc/XsdcSupport.h>
+
+using namespace android;
+
+namespace xsd {
+using namespace ::android::audio::policy::configuration::V7_0;
+}
+
+static const std::vector<audio_format_t> kAudioFormats = [] {
+ std::vector<audio_format_t> result;
+ for (const auto enumVal : xsdc_enum_range<xsd::AudioFormat>{}) {
+ audio_format_t audioFormatHal;
+ std::string audioFormat = toString(enumVal);
+ if (audio_format_from_string(audioFormat.c_str(), &audioFormatHal)) {
+ result.push_back(audioFormatHal);
+ }
+ }
+ return result;
+}();
+
+static const std::vector<audio_channel_mask_t> kAudioChannelOutMasks = [] {
+ std::vector<audio_channel_mask_t> result;
+ for (const auto enumVal : xsdc_enum_range<xsd::AudioChannelMask>{}) {
+ audio_channel_mask_t audioChannelMaskHal;
+ std::string audioChannelMask = toString(enumVal);
+ if (enumVal != xsd::AudioChannelMask::AUDIO_CHANNEL_NONE &&
+ audioChannelMask.find("_IN_") == std::string::npos &&
+ audio_channel_mask_from_string(audioChannelMask.c_str(), &audioChannelMaskHal)) {
+ result.push_back(audioChannelMaskHal);
+ }
+ }
+ return result;
+}();
+
+static const std::vector<audio_channel_mask_t> kAudioChannelInMasks = [] {
+ std::vector<audio_channel_mask_t> result;
+ for (const auto enumVal : xsdc_enum_range<xsd::AudioChannelMask>{}) {
+ audio_channel_mask_t audioChannelMaskHal;
+ std::string audioChannelMask = toString(enumVal);
+ if (enumVal != xsd::AudioChannelMask::AUDIO_CHANNEL_NONE &&
+ audioChannelMask.find("_OUT_") == std::string::npos &&
+ audio_channel_mask_from_string(audioChannelMask.c_str(), &audioChannelMaskHal)) {
+ result.push_back(audioChannelMaskHal);
+ }
+ }
+ return result;
+}();
+
+static const std::vector<audio_output_flags_t> kAudioOutputFlags = [] {
+ std::vector<audio_output_flags_t> result;
+ for (const auto enumVal : xsdc_enum_range<xsd::AudioInOutFlag>{}) {
+ audio_output_flags_t audioOutputFlagHal;
+ std::string audioOutputFlag = toString(enumVal);
+ if (audioOutputFlag.find("_OUTPUT_") != std::string::npos &&
+ audio_output_flag_from_string(audioOutputFlag.c_str(), &audioOutputFlagHal)) {
+ result.push_back(audioOutputFlagHal);
+ }
+ }
+ return result;
+}();
+
+static const std::vector<audio_devices_t> kAudioDevices = [] {
+ std::vector<audio_devices_t> result;
+ for (const auto enumVal : xsdc_enum_range<xsd::AudioDevice>{}) {
+ audio_devices_t audioDeviceHal;
+ std::string audioDevice = toString(enumVal);
+ if (audio_device_from_string(audioDevice.c_str(), &audioDeviceHal)) {
+ result.push_back(audioDeviceHal);
+ }
+ }
+ return result;
+}();
+
+static const std::vector<audio_usage_t> kAudioUsages = [] {
+ std::vector<audio_usage_t> result;
+ for (const auto enumVal : xsdc_enum_range<xsd::AudioUsage>{}) {
+ audio_usage_t audioUsageHal;
+ std::string audioUsage = toString(enumVal);
+ if (audio_usage_from_string(audioUsage.c_str(), &audioUsageHal)) {
+ result.push_back(audioUsageHal);
+ }
+ }
+ return result;
+}();
+
+static const std::vector<audio_source_t> kAudioSources = [] {
+ std::vector<audio_source_t> result;
+ for (const auto enumVal : xsdc_enum_range<xsd::AudioSource>{}) {
+ audio_source_t audioSourceHal;
+ std::string audioSource = toString(enumVal);
+ if (audio_source_from_string(audioSource.c_str(), &audioSourceHal)) {
+ result.push_back(audioSourceHal);
+ }
+ }
+ return result;
+}();
+
+static const std::vector<audio_content_type_t> kAudioContentTypes = [] {
+ std::vector<audio_content_type_t> result;
+ for (const auto enumVal : xsdc_enum_range<xsd::AudioContentType>{}) {
+ audio_content_type_t audioContentTypeHal;
+ std::string audioContentType = toString(enumVal);
+ if (audio_content_type_from_string(audioContentType.c_str(), &audioContentTypeHal)) {
+ result.push_back(audioContentTypeHal);
+ }
+ }
+ return result;
+}();
+
+std::vector<int> kMixTypes = {MIX_TYPE_PLAYERS, MIX_TYPE_RECORDERS};
+
+std::vector<int> kMixRouteFlags = {MIX_ROUTE_FLAG_RENDER, MIX_ROUTE_FLAG_LOOP_BACK,
+ MIX_ROUTE_FLAG_LOOP_BACK_AND_RENDER, MIX_ROUTE_FLAG_ALL};
+
+std::vector<audio_flags_mask_t> kAudioFlagMasks = {
+ AUDIO_FLAG_NONE, AUDIO_FLAG_AUDIBILITY_ENFORCED,
+ AUDIO_FLAG_SECURE, AUDIO_FLAG_SCO,
+ AUDIO_FLAG_BEACON, AUDIO_FLAG_HW_AV_SYNC,
+ AUDIO_FLAG_HW_HOTWORD, AUDIO_FLAG_BYPASS_INTERRUPTION_POLICY,
+ AUDIO_FLAG_BYPASS_MUTE, AUDIO_FLAG_LOW_LATENCY,
+ AUDIO_FLAG_DEEP_BUFFER, AUDIO_FLAG_NO_MEDIA_PROJECTION,
+ AUDIO_FLAG_MUTE_HAPTIC, AUDIO_FLAG_NO_SYSTEM_CAPTURE,
+ AUDIO_FLAG_CAPTURE_PRIVATE};
+
+std::vector<audio_policy_dev_state_t> kAudioPolicyDeviceStates = {
+ AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE,
+ AUDIO_POLICY_DEVICE_STATE_AVAILABLE,
+ AUDIO_POLICY_DEVICE_STATE_CNT,
+};
+
+std::vector<uint32_t> kSamplingRates = {8000, 16000, 44100, 48000, 88200, 96000};
+
+template <typename T>
+T getValueFromVector(FuzzedDataProvider *fdp, std::vector<T> arr) {
+ if (fdp->ConsumeBool()) {
+ return arr[fdp->ConsumeIntegralInRange<int32_t>(0, arr.size() - 1)];
+ } else {
+ return (T)fdp->ConsumeIntegral<uint32_t>();
+ }
+}
+
+class AudioPolicyManagerFuzzer {
+ public:
+ explicit AudioPolicyManagerFuzzer(FuzzedDataProvider *fdp);
+ virtual ~AudioPolicyManagerFuzzer() = default;
+ virtual bool initialize();
+ virtual void SetUpManagerConfig();
+ bool getOutputForAttr(audio_port_handle_t *selectedDeviceId, audio_format_t format,
+ audio_channel_mask_t channelMask, int sampleRate,
+ audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
+ audio_io_handle_t *output = nullptr,
+ audio_port_handle_t *portId = nullptr, audio_attributes_t attr = {});
+ bool getInputForAttr(const audio_attributes_t &attr, audio_unique_id_t riid,
+ audio_port_handle_t *selectedDeviceId, audio_format_t format,
+ audio_channel_mask_t channelMask, int sampleRate,
+ audio_input_flags_t flags = AUDIO_INPUT_FLAG_NONE,
+ audio_port_handle_t *portId = nullptr);
+ bool findDevicePort(audio_port_role_t role, audio_devices_t deviceType,
+ const std::string &address, audio_port_v7 *foundPort);
+ static audio_port_handle_t getDeviceIdFromPatch(const struct audio_patch *patch);
+ audio_patch createFuzzedPatch();
+ void fuzzPatchCreation();
+ virtual void process();
+
+ protected:
+ std::unique_ptr<AudioPolicyManagerTestClient> mClient{new AudioPolicyManagerTestClient};
+ std::unique_ptr<AudioPolicyTestManager> mManager{new AudioPolicyTestManager(mClient.get())};
+ FuzzedDataProvider *mFdp;
+};
+
+AudioPolicyManagerFuzzer::AudioPolicyManagerFuzzer(FuzzedDataProvider *fdp)
+ : mFdp(fdp) {}
+
+bool AudioPolicyManagerFuzzer::initialize() {
+ if (mFdp->remaining_bytes() < 1) {
+ return false;
+ }
+ // init code
+ SetUpManagerConfig();
+
+ if (mManager->initialize() != NO_ERROR) {
+ return false;
+ }
+ if (mManager->initCheck() != NO_ERROR) {
+ return false;
+ }
+ return true;
+}
+
+void AudioPolicyManagerFuzzer::SetUpManagerConfig() { mManager->getConfig().setDefault(); }
+
+bool AudioPolicyManagerFuzzer::getOutputForAttr(
+ audio_port_handle_t *selectedDeviceId, audio_format_t format, audio_channel_mask_t channelMask,
+ int sampleRate, audio_output_flags_t flags, audio_io_handle_t *output,
+ audio_port_handle_t *portId, audio_attributes_t attr) {
+ audio_io_handle_t localOutput;
+ if (!output) output = &localOutput;
+ *output = AUDIO_IO_HANDLE_NONE;
+ audio_stream_type_t stream = AUDIO_STREAM_DEFAULT;
+ audio_config_t config = AUDIO_CONFIG_INITIALIZER;
+ config.sample_rate = sampleRate;
+ config.channel_mask = channelMask;
+ config.format = format;
+ audio_port_handle_t localPortId;
+ if (!portId) portId = &localPortId;
+ *portId = AUDIO_PORT_HANDLE_NONE;
+ AudioPolicyInterface::output_type_t outputType;
+
+ if (mManager->getOutputForAttr(&attr, output, AUDIO_SESSION_NONE, &stream, 0 /*uid*/, &config,
+ &flags, selectedDeviceId, portId, {}, &outputType) != OK) {
+ return false;
+ }
+ if (*output == AUDIO_IO_HANDLE_NONE || *portId == AUDIO_PORT_HANDLE_NONE) {
+ return false;
+ }
+ return true;
+}
+
+bool AudioPolicyManagerFuzzer::getInputForAttr(
+ const audio_attributes_t &attr, audio_unique_id_t riid, audio_port_handle_t *selectedDeviceId,
+ audio_format_t format, audio_channel_mask_t channelMask, int sampleRate,
+ audio_input_flags_t flags, audio_port_handle_t *portId) {
+ audio_io_handle_t input = AUDIO_IO_HANDLE_NONE;
+ audio_config_base_t config = AUDIO_CONFIG_BASE_INITIALIZER;
+ config.sample_rate = sampleRate;
+ config.channel_mask = channelMask;
+ config.format = format;
+ audio_port_handle_t localPortId;
+ if (!portId) portId = &localPortId;
+ *portId = AUDIO_PORT_HANDLE_NONE;
+ AudioPolicyInterface::input_type_t inputType;
+
+ if (mManager->getInputForAttr(&attr, &input, riid, AUDIO_SESSION_NONE, 0 /*uid*/, &config,
+ flags, selectedDeviceId, &inputType, portId) != OK) {
+ return false;
+ }
+ if (*portId == AUDIO_PORT_HANDLE_NONE || input == AUDIO_IO_HANDLE_NONE) {
+ return false;
+ }
+ return true;
+}
+
+bool AudioPolicyManagerFuzzer::findDevicePort(audio_port_role_t role, audio_devices_t deviceType,
+ const std::string &address,
+ audio_port_v7 *foundPort) {
+ uint32_t numPorts = 0;
+ uint32_t generation1;
+ status_t ret;
+
+ ret = mManager->listAudioPorts(role, AUDIO_PORT_TYPE_DEVICE, &numPorts, nullptr, &generation1);
+ if (ret != NO_ERROR) {
+ return false;
+ }
+
+ uint32_t generation2;
+ struct audio_port_v7 ports[numPorts];
+ ret = mManager->listAudioPorts(role, AUDIO_PORT_TYPE_DEVICE, &numPorts, ports, &generation2);
+ if (ret != NO_ERROR) {
+ return false;
+ }
+
+ for (const auto &port : ports) {
+ if (port.role == role && port.ext.device.type == deviceType &&
+ (strncmp(port.ext.device.address, address.c_str(), AUDIO_DEVICE_MAX_ADDRESS_LEN) ==
+ 0)) {
+ if (foundPort) *foundPort = port;
+ return true;
+ }
+ }
+ return false;
+}
+
+audio_port_handle_t AudioPolicyManagerFuzzer::getDeviceIdFromPatch(
+ const struct audio_patch *patch) {
+ if (patch->num_sources != 0 && patch->num_sinks != 0) {
+ if (patch->sources[0].type == AUDIO_PORT_TYPE_MIX) {
+ return patch->sinks[0].id;
+ } else {
+ return patch->sources[0].id;
+ }
+ }
+ return AUDIO_PORT_HANDLE_NONE;
+}
+
+audio_patch AudioPolicyManagerFuzzer::createFuzzedPatch() {
+ audio_patch patch{};
+ patch.id = mFdp->ConsumeIntegral<uint32_t>();
+ patch.num_sources = mFdp->ConsumeIntegralInRange(0, AUDIO_PATCH_PORTS_MAX);
+ for (int i = 0; i < patch.num_sources; ++i) {
+ audio_port_config config{};
+ std::vector<uint8_t> bytes = mFdp->ConsumeBytes<uint8_t>(sizeof(config));
+ memcpy(reinterpret_cast<uint8_t *>(&config), &bytes[0], bytes.size());
+ patch.sources[i] = config;
+ }
+ patch.num_sinks = mFdp->ConsumeIntegralInRange(0, AUDIO_PATCH_PORTS_MAX);
+ for (int i = 0; i < patch.num_sinks; ++i) {
+ audio_port_config config{};
+ std::vector<uint8_t> bytes = mFdp->ConsumeBytes<uint8_t>(sizeof(config));
+ memcpy(reinterpret_cast<uint8_t *>(&config), &bytes[0], bytes.size());
+ patch.sinks[i] = config;
+ }
+ return patch;
+}
+
+void AudioPolicyManagerFuzzer::fuzzPatchCreation() {
+ if (mFdp->remaining_bytes()) {
+ audio_patch_handle_t handle = AUDIO_PATCH_HANDLE_NONE;
+ uid_t uid = mFdp->ConsumeIntegral<uint32_t>();
+
+ // create a fuzzed patch
+ handle = AUDIO_PATCH_HANDLE_NONE;
+ audio_patch patch = createFuzzedPatch();
+ uid = mFdp->ConsumeIntegral<uint32_t>();
+ if (mManager->createAudioPatch(&patch, &handle, uid) == NO_ERROR) {
+ mManager->releaseAudioPatch(handle, uid);
+ }
+ }
+}
+
+void AudioPolicyManagerFuzzer::process() {
+ if (initialize()) {
+ fuzzPatchCreation();
+ }
+}
+
+class AudioPolicyManagerFuzzerWithConfigurationFile : public AudioPolicyManagerFuzzer {
+ public:
+ explicit AudioPolicyManagerFuzzerWithConfigurationFile(FuzzedDataProvider *fdp)
+ : AudioPolicyManagerFuzzer(fdp){};
+
+ protected:
+ void SetUpManagerConfig() override;
+ virtual std::string getConfigFile();
+ void traverseAndFuzzXML(xmlDocPtr pDoc, xmlNodePtr curr);
+ std::string fuzzXML(std::string xmlPath);
+
+ static inline const std::string sExecutableDir = base::GetExecutableDirectory() + "/";
+ static inline const std::string sDefaultConfig =
+ sExecutableDir + "data/test_audio_policy_configuration.xml";
+ static inline const std::string sFuzzedConfig = sExecutableDir + "fuzzed.xml";;
+};
+
+std::string AudioPolicyManagerFuzzerWithConfigurationFile::getConfigFile() {
+ return fuzzXML(sDefaultConfig);
+}
+
+void AudioPolicyManagerFuzzerWithConfigurationFile::SetUpManagerConfig() {
+ deserializeAudioPolicyFile(getConfigFile().c_str(), &mManager->getConfig());
+}
+
+void AudioPolicyManagerFuzzerWithConfigurationFile::traverseAndFuzzXML(xmlDocPtr pDoc,
+ xmlNodePtr curr) {
+ if (curr == nullptr) {
+ return;
+ }
+
+ xmlAttr *attribute = curr->properties;
+ while (attribute) {
+ if (!xmlStrcmp(attribute->name, reinterpret_cast<const xmlChar *>("format"))) {
+ const char *newFormat =
+ audio_format_to_string(getValueFromVector<audio_format_t>(mFdp, kAudioFormats));
+ xmlSetProp(curr, attribute->name, reinterpret_cast<const xmlChar *>(newFormat));
+ }
+ if (!xmlStrcmp(attribute->name, reinterpret_cast<const xmlChar *>("flags"))) {
+ std::string newFlag = "";
+ uint16_t numFlags = std::max((uint16_t)1, mFdp->ConsumeIntegral<uint16_t>());
+ for (uint16_t i = 0; i < numFlags; ++i) {
+ newFlag += std::string(audio_output_flag_to_string(
+ getValueFromVector<audio_output_flags_t>(mFdp, kAudioOutputFlags)));
+ if (i != (numFlags - 1)) {
+ newFlag += std::string("|");
+ }
+ }
+ xmlSetProp(curr, attribute->name, reinterpret_cast<const xmlChar *>(newFlag.c_str()));
+ }
+ if (!xmlStrcmp(attribute->name, reinterpret_cast<const xmlChar *>("samplingRates"))) {
+ std::string newRate = "";
+ uint16_t numRates = std::max((uint16_t)1, mFdp->ConsumeIntegral<uint16_t>());
+ for (uint16_t i = 0; i < numRates; ++i) {
+ newRate += std::to_string(getValueFromVector<uint32_t>(mFdp, kSamplingRates));
+ if (i != (numRates - 1)) {
+ newRate += std::string(",");
+ }
+ }
+ xmlSetProp(curr, attribute->name, reinterpret_cast<const xmlChar *>(newRate.c_str()));
+ }
+ if (!xmlStrcmp(attribute->name, reinterpret_cast<const xmlChar *>("channelMasks"))) {
+ int isOutMask = -1;
+ char *value =
+ reinterpret_cast<char *>(xmlNodeListGetString(pDoc, attribute->children, 1));
+ if (std::string(value).find(std::string("_OUT_")) != std::string::npos) {
+ // OUT mask
+ isOutMask = 1;
+ } else if (std::string(value).find(std::string("_IN_")) != std::string::npos) {
+ // IN mask
+ isOutMask = 0;
+ }
+ if (isOutMask != -1) {
+ std::string newMask = "";
+ uint16_t numMasks = std::max((uint16_t)1, mFdp->ConsumeIntegral<uint16_t>());
+ for (uint16_t i = 0; i < numMasks; ++i) {
+ if (isOutMask) {
+ newMask += std::string(audio_channel_out_mask_to_string(
+ getValueFromVector<audio_channel_mask_t>(mFdp, kAudioChannelOutMasks)));
+ } else {
+ newMask += std::string(audio_channel_in_mask_to_string(
+ getValueFromVector<audio_channel_mask_t>(mFdp, kAudioChannelInMasks)));
+ }
+ if (i != (numMasks - 1)) {
+ newMask += std::string(",");
+ }
+ }
+ xmlSetProp(curr, attribute->name,
+ reinterpret_cast<const xmlChar *>(newMask.c_str()));
+ }
+ xmlFree(value);
+ }
+ attribute = attribute->next;
+ }
+
+ curr = curr->xmlChildrenNode;
+ while (curr != nullptr) {
+ traverseAndFuzzXML(pDoc, curr);
+ curr = curr->next;
+ }
+}
+
+std::string AudioPolicyManagerFuzzerWithConfigurationFile::fuzzXML(std::string xmlPath) {
+ std::string outPath = sFuzzedConfig;
+
+ // Load in the xml file from disk
+ xmlDocPtr pDoc = xmlParseFile(xmlPath.c_str());
+ xmlNodePtr root = xmlDocGetRootElement(pDoc);
+
+ traverseAndFuzzXML(pDoc, root);
+
+ // Save the document back out to disk.
+ xmlSaveFileEnc(outPath.c_str(), pDoc, "UTF-8");
+ xmlFreeDoc(pDoc);
+
+ return outPath;
+}
+
+class AudioPolicyManagerFuzzerMsd : public AudioPolicyManagerFuzzerWithConfigurationFile {
+ public:
+ explicit AudioPolicyManagerFuzzerMsd(FuzzedDataProvider *fdp)
+ : AudioPolicyManagerFuzzerWithConfigurationFile(fdp) {}
+
+ protected:
+ std::string getConfigFile() override;
+
+ static inline const std::string sMsdConfig =
+ sExecutableDir + "data/test_audio_policy_msd_configuration.xml";
+};
+
+std::string AudioPolicyManagerFuzzerMsd::getConfigFile() { return fuzzXML(sMsdConfig); }
+
+using PolicyMixTuple = std::tuple<audio_usage_t, audio_source_t, uint32_t>;
+
+class AudioPolicyManagerFuzzerDynamicPolicy : public AudioPolicyManagerFuzzerWithConfigurationFile {
+ public:
+ explicit AudioPolicyManagerFuzzerDynamicPolicy(FuzzedDataProvider *fdp)
+ : AudioPolicyManagerFuzzerWithConfigurationFile(fdp){};
+ ~AudioPolicyManagerFuzzerDynamicPolicy() override;
+ void process() override;
+
+ protected:
+ status_t addPolicyMix(int mixType, int mixFlag, audio_devices_t deviceType,
+ std::string mixAddress, const audio_config_t &audioConfig,
+ const std::vector<PolicyMixTuple> &rules);
+ void clearPolicyMix();
+ void registerPolicyMixes();
+ void unregisterPolicyMixes();
+
+ Vector<AudioMix> mAudioMixes;
+ const std::string mMixAddress = "remote_submix_media";
+};
+
+AudioPolicyManagerFuzzerDynamicPolicy::~AudioPolicyManagerFuzzerDynamicPolicy() {
+ clearPolicyMix();
+}
+
+status_t AudioPolicyManagerFuzzerDynamicPolicy::addPolicyMix(
+ int mixType, int mixFlag, audio_devices_t deviceType, std::string mixAddress,
+ const audio_config_t &audioConfig, const std::vector<PolicyMixTuple> &rules) {
+ Vector<AudioMixMatchCriterion> myMixMatchCriteria;
+
+ for (const auto &rule : rules) {
+ myMixMatchCriteria.add(
+ AudioMixMatchCriterion(std::get<0>(rule), std::get<1>(rule), std::get<2>(rule)));
+ }
+
+ AudioMix myAudioMix(myMixMatchCriteria, mixType, audioConfig, mixFlag,
+ String8(mixAddress.c_str()), 0);
+ myAudioMix.mDeviceType = deviceType;
+ // Clear mAudioMix before add new one to make sure we don't add already existing mixes.
+ mAudioMixes.clear();
+ mAudioMixes.add(myAudioMix);
+
+ // As the policy mixes registration may fail at some case,
+ // caller need to check the returned status.
+ status_t ret = mManager->registerPolicyMixes(mAudioMixes);
+ return ret;
+}
+
+void AudioPolicyManagerFuzzerDynamicPolicy::clearPolicyMix() {
+ if (mManager != nullptr) {
+ mManager->unregisterPolicyMixes(mAudioMixes);
+ }
+ mAudioMixes.clear();
+}
+
+void AudioPolicyManagerFuzzerDynamicPolicy::registerPolicyMixes() {
+ const uint32_t numPolicies = mFdp->ConsumeIntegralInRange<uint32_t>(1, MAX_MIXES_PER_POLICY);
+
+ for (int i = 0; i < numPolicies; ++i) {
+ audio_config_t audioConfig = AUDIO_CONFIG_INITIALIZER;
+ audioConfig.channel_mask = getValueFromVector<audio_channel_mask_t>(
+ mFdp, mFdp->ConsumeBool() ? kAudioChannelInMasks : kAudioChannelOutMasks);
+ audioConfig.format = getValueFromVector<audio_format_t>(mFdp, kAudioFormats);
+ audioConfig.sample_rate = getValueFromVector<uint32_t>(mFdp, kSamplingRates);
+ addPolicyMix(getValueFromVector<int>(mFdp, kMixTypes),
+ getValueFromVector<int>(mFdp, kMixRouteFlags),
+ getValueFromVector<audio_devices_t>(mFdp, kAudioDevices), "", audioConfig,
+ std::vector<PolicyMixTuple>());
+ }
+}
+
+void AudioPolicyManagerFuzzerDynamicPolicy::unregisterPolicyMixes() {
+ mManager->unregisterPolicyMixes(mAudioMixes);
+}
+
+void AudioPolicyManagerFuzzerDynamicPolicy::process() {
+ if (initialize()) {
+ registerPolicyMixes();
+ fuzzPatchCreation();
+ unregisterPolicyMixes();
+ }
+}
+
+class AudioPolicyManagerFuzzerDPNoRemoteSubmixModule
+ : public AudioPolicyManagerFuzzerDynamicPolicy {
+ public:
+ explicit AudioPolicyManagerFuzzerDPNoRemoteSubmixModule(FuzzedDataProvider *fdp)
+ : AudioPolicyManagerFuzzerDynamicPolicy(fdp){};
+
+ protected:
+ std::string getConfigFile() override;
+
+ static inline const std::string sPrimaryOnlyConfig =
+ sExecutableDir + "data/test_audio_policy_primary_only_configuration.xml";
+};
+
+std::string AudioPolicyManagerFuzzerDPNoRemoteSubmixModule::getConfigFile() {
+ return fuzzXML(sPrimaryOnlyConfig);
+}
+
+class AudioPolicyManagerFuzzerDPPlaybackReRouting : public AudioPolicyManagerFuzzerDynamicPolicy {
+ public:
+ explicit AudioPolicyManagerFuzzerDPPlaybackReRouting(FuzzedDataProvider *fdp);
+ ~AudioPolicyManagerFuzzerDPPlaybackReRouting() override;
+ void process() override;
+
+ protected:
+ bool initialize() override;
+ void playBackReRouting();
+
+ std::unique_ptr<RecordingActivityTracker> mTracker;
+
+ std::vector<PolicyMixTuple> mUsageRules = {
+ {AUDIO_USAGE_MEDIA, AUDIO_SOURCE_DEFAULT, RULE_MATCH_ATTRIBUTE_USAGE},
+ {AUDIO_USAGE_ALARM, AUDIO_SOURCE_DEFAULT, RULE_MATCH_ATTRIBUTE_USAGE}};
+
+ struct audio_port_v7 mInjectionPort;
+ audio_port_handle_t mPortId = AUDIO_PORT_HANDLE_NONE;
+ audio_config_t mAudioConfig;
+};
+
+AudioPolicyManagerFuzzerDPPlaybackReRouting::AudioPolicyManagerFuzzerDPPlaybackReRouting(
+ FuzzedDataProvider *fdp)
+ : AudioPolicyManagerFuzzerDynamicPolicy(fdp) {
+ const uint32_t numRules = mFdp->ConsumeIntegralInRange<uint32_t>(1, 10);
+ for (int i = 0; i < numRules; ++i) {
+ PolicyMixTuple rule = {getValueFromVector<audio_usage_t>(mFdp, kAudioUsages),
+ getValueFromVector<audio_source_t>(mFdp, kAudioSources),
+ RULE_MATCH_ATTRIBUTE_USAGE};
+ mUsageRules.push_back(rule);
+ }
+}
+
+AudioPolicyManagerFuzzerDPPlaybackReRouting::~AudioPolicyManagerFuzzerDPPlaybackReRouting() {
+ mManager->stopInput(mPortId);
+}
+
+bool AudioPolicyManagerFuzzerDPPlaybackReRouting::initialize() {
+ AudioPolicyManagerFuzzerDynamicPolicy::initialize();
+ mTracker.reset(new RecordingActivityTracker());
+
+ mAudioConfig = AUDIO_CONFIG_INITIALIZER;
+ mAudioConfig.channel_mask =
+ getValueFromVector<audio_channel_mask_t>(mFdp, kAudioChannelOutMasks);
+ mAudioConfig.format = getValueFromVector<audio_format_t>(mFdp, kAudioFormats);
+ mAudioConfig.sample_rate = getValueFromVector<uint32_t>(mFdp, kSamplingRates);
+ status_t ret = addPolicyMix(getValueFromVector<int>(mFdp, kMixTypes),
+ getValueFromVector<int>(mFdp, kMixRouteFlags),
+ getValueFromVector<audio_devices_t>(mFdp, kAudioDevices),
+ mMixAddress, mAudioConfig, mUsageRules);
+ if (ret != NO_ERROR) {
+ return false;
+ }
+
+ struct audio_port_v7 extractionPort;
+ findDevicePort(AUDIO_PORT_ROLE_SOURCE, getValueFromVector<audio_devices_t>(mFdp, kAudioDevices),
+ mMixAddress, &extractionPort);
+
+ audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE;
+ audio_source_t source = getValueFromVector<audio_source_t>(mFdp, kAudioSources);
+ audio_attributes_t attr = {AUDIO_CONTENT_TYPE_UNKNOWN, AUDIO_USAGE_UNKNOWN, source,
+ AUDIO_FLAG_NONE, ""};
+ std::string tags = "addr=" + mMixAddress;
+ strncpy(attr.tags, tags.c_str(), AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1);
+ getInputForAttr(attr, mTracker->getRiid(), &selectedDeviceId, mAudioConfig.format,
+ mAudioConfig.channel_mask, mAudioConfig.sample_rate, AUDIO_INPUT_FLAG_NONE,
+ &mPortId);
+
+ ret = mManager->startInput(mPortId);
+ if (ret != NO_ERROR) {
+ return false;
+ }
+ if (!findDevicePort(AUDIO_PORT_ROLE_SINK,
+ getValueFromVector<audio_devices_t>(mFdp, kAudioDevices), mMixAddress,
+ &mInjectionPort)) {
+ return false;
+ }
+
+ return true;
+}
+
+void AudioPolicyManagerFuzzerDPPlaybackReRouting::playBackReRouting() {
+ const uint32_t numTestCases = mFdp->ConsumeIntegralInRange<uint32_t>(1, 10);
+ for (int i = 0; i < numTestCases; ++i) {
+ audio_attributes_t attr;
+ attr.content_type = getValueFromVector<audio_content_type_t>(mFdp, kAudioContentTypes);
+ attr.usage = getValueFromVector<audio_usage_t>(mFdp, kAudioUsages);
+ attr.source = getValueFromVector<audio_source_t>(mFdp, kAudioSources);
+ attr.flags = getValueFromVector<audio_flags_mask_t>(mFdp, kAudioFlagMasks);
+ std::string tags(mFdp->ConsumeBool() ? "" : "addr=remote_submix_media");
+ strncpy(attr.tags, tags.c_str(), AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1);
+
+ audio_port_handle_t playbackRoutedPortId = AUDIO_PORT_HANDLE_NONE;
+ getOutputForAttr(&playbackRoutedPortId, mAudioConfig.format, mAudioConfig.channel_mask,
+ mAudioConfig.sample_rate, AUDIO_OUTPUT_FLAG_NONE, nullptr /*output*/,
+ nullptr /*portId*/, attr);
+ }
+}
+
+void AudioPolicyManagerFuzzerDPPlaybackReRouting::process() {
+ if (initialize()) {
+ playBackReRouting();
+ registerPolicyMixes();
+ fuzzPatchCreation();
+ unregisterPolicyMixes();
+ }
+}
+
+class AudioPolicyManagerFuzzerDPMixRecordInjection : public AudioPolicyManagerFuzzerDynamicPolicy {
+ public:
+ explicit AudioPolicyManagerFuzzerDPMixRecordInjection(FuzzedDataProvider *fdp);
+ ~AudioPolicyManagerFuzzerDPMixRecordInjection() override;
+ void process() override;
+
+ protected:
+ bool initialize() override;
+ void recordingInjection();
+
+ std::unique_ptr<RecordingActivityTracker> mTracker;
+
+ std::vector<PolicyMixTuple> mSourceRules = {
+ {AUDIO_USAGE_UNKNOWN, AUDIO_SOURCE_CAMCORDER, RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET},
+ {AUDIO_USAGE_UNKNOWN, AUDIO_SOURCE_MIC, RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET},
+ {AUDIO_USAGE_UNKNOWN, AUDIO_SOURCE_VOICE_COMMUNICATION,
+ RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET}};
+
+ struct audio_port_v7 mExtractionPort;
+ audio_port_handle_t mPortId = AUDIO_PORT_HANDLE_NONE;
+ audio_config_t mAudioConfig;
+};
+
+AudioPolicyManagerFuzzerDPMixRecordInjection::AudioPolicyManagerFuzzerDPMixRecordInjection(
+ FuzzedDataProvider *fdp)
+ : AudioPolicyManagerFuzzerDynamicPolicy(fdp) {
+ const uint32_t numRules = mFdp->ConsumeIntegralInRange<uint32_t>(1, 10);
+ for (int i = 0; i < numRules; ++i) {
+ PolicyMixTuple rule = {getValueFromVector<audio_usage_t>(mFdp, kAudioUsages),
+ getValueFromVector<audio_source_t>(mFdp, kAudioSources),
+ RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET};
+ mSourceRules.push_back(rule);
+ }
+}
+
+AudioPolicyManagerFuzzerDPMixRecordInjection::~AudioPolicyManagerFuzzerDPMixRecordInjection() {
+ mManager->stopOutput(mPortId);
+}
+
+bool AudioPolicyManagerFuzzerDPMixRecordInjection::initialize() {
+ AudioPolicyManagerFuzzerDynamicPolicy::initialize();
+
+ mTracker.reset(new RecordingActivityTracker());
+
+ mAudioConfig = AUDIO_CONFIG_INITIALIZER;
+ mAudioConfig.channel_mask =
+ getValueFromVector<audio_channel_mask_t>(mFdp, kAudioChannelInMasks);
+ mAudioConfig.format = getValueFromVector<audio_format_t>(mFdp, kAudioFormats);
+ mAudioConfig.sample_rate = getValueFromVector<uint32_t>(mFdp, kSamplingRates);
+ status_t ret = addPolicyMix(getValueFromVector<int>(mFdp, kMixTypes),
+ getValueFromVector<int>(mFdp, kMixRouteFlags),
+ getValueFromVector<audio_devices_t>(mFdp, kAudioDevices),
+ mMixAddress, mAudioConfig, mSourceRules);
+ if (ret != NO_ERROR) {
+ return false;
+ }
+
+ struct audio_port_v7 injectionPort;
+ findDevicePort(AUDIO_PORT_ROLE_SINK, getValueFromVector<audio_devices_t>(mFdp, kAudioDevices),
+ mMixAddress, &injectionPort);
+
+ audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE;
+ audio_usage_t usage = getValueFromVector<audio_usage_t>(mFdp, kAudioUsages);
+ audio_attributes_t attr = {AUDIO_CONTENT_TYPE_UNKNOWN, usage, AUDIO_SOURCE_DEFAULT,
+ AUDIO_FLAG_NONE, ""};
+ std::string tags = std::string("addr=") + mMixAddress;
+ strncpy(attr.tags, tags.c_str(), AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1);
+ getOutputForAttr(&selectedDeviceId, mAudioConfig.format, mAudioConfig.channel_mask,
+ mAudioConfig.sample_rate /*sampleRate*/, AUDIO_OUTPUT_FLAG_NONE,
+ nullptr /*output*/, &mPortId, attr);
+ ret = mManager->startOutput(mPortId);
+ if (ret != NO_ERROR) {
+ return false;
+ }
+ getDeviceIdFromPatch(mClient->getLastAddedPatch());
+ if (!findDevicePort(AUDIO_PORT_ROLE_SOURCE,
+ getValueFromVector<audio_devices_t>(mFdp, kAudioDevices), mMixAddress,
+ &mExtractionPort)) {
+ return false;
+ }
+
+ return true;
+}
+
+void AudioPolicyManagerFuzzerDPMixRecordInjection::recordingInjection() {
+ const uint32_t numTestCases = mFdp->ConsumeIntegralInRange<uint32_t>(1, 10);
+ for (int i = 0; i < numTestCases; ++i) {
+ audio_attributes_t attr;
+ attr.content_type = getValueFromVector<audio_content_type_t>(mFdp, kAudioContentTypes);
+ attr.usage = getValueFromVector<audio_usage_t>(mFdp, kAudioUsages);
+ attr.source = getValueFromVector<audio_source_t>(mFdp, kAudioSources);
+ attr.flags = getValueFromVector<audio_flags_mask_t>(mFdp, kAudioFlagMasks);
+ std::string tags(mFdp->ConsumeBool() ? "" : "addr=remote_submix_media");
+ strncpy(attr.tags, tags.c_str(), AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1);
+
+ audio_port_handle_t captureRoutedPortId = AUDIO_PORT_HANDLE_NONE;
+ audio_port_handle_t portId = AUDIO_PORT_HANDLE_NONE;
+ getInputForAttr(attr, mTracker->getRiid(), &captureRoutedPortId, mAudioConfig.format,
+ mAudioConfig.channel_mask, mAudioConfig.sample_rate, AUDIO_INPUT_FLAG_NONE,
+ &portId);
+ }
+}
+
+void AudioPolicyManagerFuzzerDPMixRecordInjection::process() {
+ if (initialize()) {
+ recordingInjection();
+ registerPolicyMixes();
+ fuzzPatchCreation();
+ unregisterPolicyMixes();
+ }
+}
+
+using DeviceConnectionTestParams =
+ std::tuple<audio_devices_t /*type*/, std::string /*name*/, std::string /*address*/>;
+
+class AudioPolicyManagerFuzzerDeviceConnection
+ : public AudioPolicyManagerFuzzerWithConfigurationFile {
+ public:
+ explicit AudioPolicyManagerFuzzerDeviceConnection(FuzzedDataProvider *fdp)
+ : AudioPolicyManagerFuzzerWithConfigurationFile(fdp){};
+ void process() override;
+
+ protected:
+ void setDeviceConnectionState();
+ void explicitlyRoutingAfterConnection();
+};
+
+void AudioPolicyManagerFuzzerDeviceConnection::setDeviceConnectionState() {
+ const uint32_t numTestCases = mFdp->ConsumeIntegralInRange<uint32_t>(1, 10);
+ for (int i = 0; i < numTestCases; ++i) {
+ const audio_devices_t type = getValueFromVector<audio_devices_t>(mFdp, kAudioDevices);
+ const std::string name = mFdp->ConsumeRandomLengthString();
+ const std::string address = mFdp->ConsumeRandomLengthString();
+ mManager->setDeviceConnectionState(
+ type, getValueFromVector<audio_policy_dev_state_t>(mFdp, kAudioPolicyDeviceStates),
+ address.c_str(), name.c_str(), getValueFromVector<audio_format_t>(mFdp, kAudioFormats));
+ }
+}
+
+void AudioPolicyManagerFuzzerDeviceConnection::explicitlyRoutingAfterConnection() {
+ const uint32_t numTestCases = mFdp->ConsumeIntegralInRange<uint32_t>(1, 10);
+ for (int i = 0; i < numTestCases; ++i) {
+ const audio_devices_t type = getValueFromVector<audio_devices_t>(mFdp, kAudioDevices);
+ const std::string name = mFdp->ConsumeRandomLengthString();
+ const std::string address = mFdp->ConsumeRandomLengthString();
+ mManager->setDeviceConnectionState(
+ type, getValueFromVector<audio_policy_dev_state_t>(mFdp, kAudioPolicyDeviceStates),
+ address.c_str(), name.c_str(), getValueFromVector<audio_format_t>(mFdp, kAudioFormats));
+
+ audio_port_v7 devicePort;
+ const audio_port_role_t role =
+ audio_is_output_device(type) ? AUDIO_PORT_ROLE_SINK : AUDIO_PORT_ROLE_SOURCE;
+ findDevicePort(role, type, address, &devicePort);
+
+ audio_port_handle_t routedPortId = devicePort.id;
+ // Try start input or output according to the device type
+ if (audio_is_output_devices(type)) {
+ getOutputForAttr(&routedPortId, getValueFromVector<audio_format_t>(mFdp, kAudioFormats),
+ getValueFromVector<audio_channel_mask_t>(mFdp, kAudioChannelOutMasks),
+ getValueFromVector<uint32_t>(mFdp, kSamplingRates),
+ AUDIO_OUTPUT_FLAG_NONE);
+ } else if (audio_is_input_device(type)) {
+ RecordingActivityTracker tracker;
+ getInputForAttr({}, tracker.getRiid(), &routedPortId,
+ getValueFromVector<audio_format_t>(mFdp, kAudioFormats),
+ getValueFromVector<audio_channel_mask_t>(mFdp, kAudioChannelInMasks),
+ getValueFromVector<uint32_t>(mFdp, kSamplingRates),
+ AUDIO_INPUT_FLAG_NONE);
+ }
+ }
+}
+
+void AudioPolicyManagerFuzzerDeviceConnection::process() {
+ if (initialize()) {
+ setDeviceConnectionState();
+ explicitlyRoutingAfterConnection();
+ fuzzPatchCreation();
+ }
+}
+
+class AudioPolicyManagerTVFuzzer : public AudioPolicyManagerFuzzerWithConfigurationFile {
+ public:
+ explicit AudioPolicyManagerTVFuzzer(FuzzedDataProvider *fdp)
+ : AudioPolicyManagerFuzzerWithConfigurationFile(fdp){};
+ void process() override;
+
+ protected:
+ std::string getConfigFile();
+ void testHDMIPortSelection(audio_output_flags_t flags);
+
+ static inline const std::string sTvConfig =
+ AudioPolicyManagerTVFuzzer::sExecutableDir + "data/test_tv_apm_configuration.xml";
+};
+
+std::string AudioPolicyManagerTVFuzzer::getConfigFile() { return fuzzXML(sTvConfig); }
+
+void AudioPolicyManagerTVFuzzer::testHDMIPortSelection(audio_output_flags_t flags) {
+ audio_devices_t audioDevice = getValueFromVector<audio_devices_t>(mFdp, kAudioDevices);
+ audio_format_t audioFormat = getValueFromVector<audio_format_t>(mFdp, kAudioFormats);
+ status_t ret = mManager->setDeviceConnectionState(
+ audioDevice, AUDIO_POLICY_DEVICE_STATE_AVAILABLE, "" /*address*/, "" /*name*/, audioFormat);
+ if (ret != NO_ERROR) {
+ return;
+ }
+ audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE;
+ audio_io_handle_t output;
+ audio_port_handle_t portId;
+ getOutputForAttr(&selectedDeviceId, getValueFromVector<audio_format_t>(mFdp, kAudioFormats),
+ getValueFromVector<audio_channel_mask_t>(mFdp, kAudioChannelOutMasks),
+ getValueFromVector<uint32_t>(mFdp, kSamplingRates), flags, &output, &portId);
+ sp<SwAudioOutputDescriptor> outDesc = mManager->getOutputs().valueFor(output);
+ if (outDesc.get() == nullptr) {
+ return;
+ }
+ audio_port_v7 port = {};
+ outDesc->toAudioPort(&port);
+ mManager->releaseOutput(portId);
+ mManager->setDeviceConnectionState(audioDevice, AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE,
+ "" /*address*/, "" /*name*/, audioFormat);
+}
+
+void AudioPolicyManagerTVFuzzer::process() {
+ if (initialize()) {
+ testHDMIPortSelection(getValueFromVector<audio_output_flags_t>(mFdp, kAudioOutputFlags));
+ fuzzPatchCreation();
+ }
+}
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+ if (size < 1) {
+ return 0;
+ }
+ FuzzedDataProvider fdp = FuzzedDataProvider(data, size);
+ while (fdp.remaining_bytes() > 0) {
+ AudioPolicyManagerFuzzer audioPolicyManagerFuzzer(&fdp);
+ audioPolicyManagerFuzzer.process();
+
+ AudioPolicyManagerFuzzerMsd audioPolicyManagerFuzzerMsd(&fdp);
+ audioPolicyManagerFuzzerMsd.process();
+
+ AudioPolicyManagerFuzzerWithConfigurationFile audioPolicyManagerFuzzerWithConfigurationFile(
+ &fdp);
+ audioPolicyManagerFuzzerWithConfigurationFile.process();
+
+ AudioPolicyManagerFuzzerDynamicPolicy audioPolicyManagerFuzzerDynamicPolicy(&fdp);
+ audioPolicyManagerFuzzerDynamicPolicy.process();
+
+ AudioPolicyManagerFuzzerDPNoRemoteSubmixModule
+ audioPolicyManagerFuzzerDPNoRemoteSubmixModule(&fdp);
+ audioPolicyManagerFuzzerDPNoRemoteSubmixModule.process();
+
+ AudioPolicyManagerFuzzerDPPlaybackReRouting audioPolicyManagerFuzzerDPPlaybackReRouting(
+ &fdp);
+ audioPolicyManagerFuzzerDPPlaybackReRouting.process();
+
+ AudioPolicyManagerFuzzerDPMixRecordInjection audioPolicyManagerFuzzerDPMixRecordInjection(
+ &fdp);
+ audioPolicyManagerFuzzerDPMixRecordInjection.process();
+
+ AudioPolicyManagerFuzzerDeviceConnection audioPolicyManagerFuzzerDeviceConnection(&fdp);
+ audioPolicyManagerFuzzerDeviceConnection.process();
+
+ AudioPolicyManagerTVFuzzer audioPolicyManagerTVFuzzer(&fdp);
+ audioPolicyManagerTVFuzzer.process();
+ }
+ return 0;
+}
diff --git a/services/audiopolicy/fuzzer/resources/Android.bp b/services/audiopolicy/fuzzer/resources/Android.bp
new file mode 100644
index 0000000..f1e3a51
--- /dev/null
+++ b/services/audiopolicy/fuzzer/resources/Android.bp
@@ -0,0 +1,27 @@
+/******************************************************************************
+ *
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ ******************************************************************************/
+
+filegroup {
+ name: "audiopolicyfuzzer_configuration_files",
+ srcs: [
+ "test_audio_policy_configuration.xml",
+ "test_audio_policy_msd_configuration.xml",
+ "test_audio_policy_primary_only_configuration.xml",
+ "test_tv_apm_configuration.xml",
+ ],
+}
diff --git a/services/audiopolicy/fuzzer/resources/test_audio_policy_configuration.xml b/services/audiopolicy/fuzzer/resources/test_audio_policy_configuration.xml
new file mode 100644
index 0000000..7e26c33
--- /dev/null
+++ b/services/audiopolicy/fuzzer/resources/test_audio_policy_configuration.xml
@@ -0,0 +1,111 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<!-- Copyright (C) 2021 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<audioPolicyConfiguration version="1.0" xmlns:xi="http://www.w3.org/2001/XInclude">
+ <globalConfiguration speaker_drc_enabled="true"/>
+
+ <modules>
+ <!-- Primary module -->
+ <module name="primary" halVersion="2.0">
+ <attachedDevices>
+ <item>Speaker</item>
+ <item>Built-In Mic</item>
+ </attachedDevices>
+ <defaultOutputDevice>Speaker</defaultOutputDevice>
+ <mixPorts>
+ <mixPort name="primary output" role="source" flags="AUDIO_OUTPUT_FLAG_PRIMARY">
+ <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+ samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+ </mixPort>
+ <mixPort name="primary input" role="sink">
+ <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+ samplingRates="48000"
+ channelMasks="AUDIO_CHANNEL_IN_STEREO"/>
+ </mixPort>
+ <mixPort name="mixport_bt_hfp_output" role="source">
+ <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+ samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+ </mixPort>
+ <mixPort name="mixport_bt_hfp_input" role="sink">
+ <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+ samplingRates="8000,11025,16000,44100,48000"
+ channelMasks="AUDIO_CHANNEL_IN_STEREO,AUDIO_CHANNEL_IN_MONO"/>
+ </mixPort>
+ </mixPorts>
+ <devicePorts>
+ <devicePort tagName="Speaker" type="AUDIO_DEVICE_OUT_SPEAKER" role="sink">
+ </devicePort>
+ <devicePort tagName="Built-In Mic" type="AUDIO_DEVICE_IN_BUILTIN_MIC" role="source">
+ </devicePort>
+ <devicePort tagName="Hdmi" type="AUDIO_DEVICE_OUT_HDMI" role="sink">
+ </devicePort>
+ <devicePort tagName="Hdmi-In Mic" type="AUDIO_DEVICE_IN_HDMI" role="source">
+ </devicePort>
+ <devicePort tagName="BT SCO" type="AUDIO_DEVICE_OUT_BLUETOOTH_SCO"
+ role="sink" address="hfp_client_out">
+ </devicePort>
+ <devicePort tagName="BT SCO Headset Mic" type="AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET"
+ role="source" address="hfp_client_in">
+ </devicePort>
+ </devicePorts>
+ <routes>
+ <route type="mix" sink="Speaker"
+ sources="primary output"/>
+ <route type="mix" sink="primary input"
+ sources="Built-In Mic,Hdmi-In Mic"/>
+ <route type="mix" sink="Hdmi"
+ sources="primary output"/>
+ <route type="mix" sink="BT SCO"
+ sources="mixport_bt_hfp_output"/>
+ <route type="mix" sink="mixport_bt_hfp_input"
+ sources="BT SCO Headset Mic"/>
+ </routes>
+ </module>
+
+ <!-- Remote Submix module -->
+ <module name="r_submix" halVersion="2.0">
+ <attachedDevices>
+ <item>Remote Submix In</item>
+ </attachedDevices>
+ <mixPorts>
+ <mixPort name="r_submix output" role="source">
+ <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+ samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+ </mixPort>
+ <mixPort name="r_submix input" role="sink">
+ <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+ samplingRates="48000" channelMasks="AUDIO_CHANNEL_IN_STEREO"/>
+ </mixPort>
+ </mixPorts>
+ <devicePorts>
+ <devicePort tagName="Remote Submix Out" type="AUDIO_DEVICE_OUT_REMOTE_SUBMIX" role="sink">
+ <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+ samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+ </devicePort>
+ <devicePort tagName="Remote Submix In" type="AUDIO_DEVICE_IN_REMOTE_SUBMIX" role="source">
+ <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+ samplingRates="48000" channelMasks="AUDIO_CHANNEL_IN_STEREO"/>
+ </devicePort>
+ </devicePorts>
+ <routes>
+ <route type="mix" sink="Remote Submix Out"
+ sources="r_submix output"/>
+ <route type="mix" sink="r_submix input"
+ sources="Remote Submix In"/>
+ </routes>
+ </module>
+ </modules>
+</audioPolicyConfiguration>
diff --git a/services/audiopolicy/fuzzer/resources/test_audio_policy_msd_configuration.xml b/services/audiopolicy/fuzzer/resources/test_audio_policy_msd_configuration.xml
new file mode 100644
index 0000000..5248d79
--- /dev/null
+++ b/services/audiopolicy/fuzzer/resources/test_audio_policy_msd_configuration.xml
@@ -0,0 +1,84 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<!-- Copyright (C) 2021 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<audioPolicyConfiguration version="1.0" xmlns:xi="http://www.w3.org/2001/XInclude">
+ <globalConfiguration speaker_drc_enabled="true"/>
+
+ <modules>
+ <module name="msd" halVersion="2.0">
+ <attachedDevices>
+ <item>MS12 Input</item>
+ <item>MS12 Output</item>
+ </attachedDevices>
+ <mixPorts>
+ <mixPort name="ms12 input" role="source">
+ <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+ samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+ </mixPort>
+ <mixPort name="ms12 compressed input" role="source"
+ flags="AUDIO_OUTPUT_FLAG_DIRECT|AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD|AUDIO_OUTPUT_FLAG_NON_BLOCKING">
+ <profile name="" format="AUDIO_FORMAT_AC3"
+ samplingRates="32000,44100,48000"
+ channelMasks="AUDIO_CHANNEL_OUT_MONO|AUDIO_CHANNEL_OUT_STEREO|AUDIO_CHANNEL_OUT_5POINT1"/>
+ <profile name="" format="AUDIO_FORMAT_E_AC3"
+ samplingRates="32000,44100,48000"
+ channelMasks="AUDIO_CHANNEL_OUT_MONO|AUDIO_CHANNEL_OUT_STEREO|AUDIO_CHANNEL_OUT_5POINT1|AUDIO_CHANNEL_OUT_7POINT1"/>
+ <profile name="" format="AUDIO_FORMAT_E_AC3_JOC"
+ samplingRates="32000,44100,48000"
+ channelMasks="AUDIO_CHANNEL_OUT_MONO|AUDIO_CHANNEL_OUT_STEREO|AUDIO_CHANNEL_OUT_5POINT1|AUDIO_CHANNEL_OUT_7POINT1"/>
+ <profile name="" format="AUDIO_FORMAT_AC4"
+ samplingRates="32000,44100,48000"
+ channelMasks="AUDIO_CHANNEL_OUT_MONO|AUDIO_CHANNEL_OUT_STEREO|AUDIO_CHANNEL_OUT_5POINT1|AUDIO_CHANNEL_OUT_7POINT1"/>
+ </mixPort>
+ <!-- The HW AV Sync flag is not required, but is recommended -->
+ <mixPort name="ms12 output" role="sink" flags="AUDIO_INPUT_FLAG_HW_AV_SYNC|AUDIO_INPUT_FLAG_DIRECT">
+ <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+ samplingRates="48000" channelMasks="AUDIO_CHANNEL_IN_STEREO"/>
+ <profile name="" format="AUDIO_FORMAT_AC3"
+ samplingRates="48000" channelMasks="AUDIO_CHANNEL_IN_5POINT1"/>
+ <profile name="" format="AUDIO_FORMAT_E_AC3"
+ samplingRates="48000" channelMasks="AUDIO_CHANNEL_IN_5POINT1"/>
+ </mixPort>
+ </mixPorts>
+ <devicePorts>
+ <devicePort tagName="MS12 Input" type="AUDIO_DEVICE_OUT_BUS" role="sink">
+ <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+ samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+ <profile name="" format="AUDIO_FORMAT_AC3"
+ samplingRates="32000,44100,48000"
+ channelMasks="AUDIO_CHANNEL_OUT_MONO|AUDIO_CHANNEL_OUT_STEREO|AUDIO_CHANNEL_OUT_5POINT1"/>
+ <profile name="" format="AUDIO_FORMAT_E_AC3"
+ samplingRates="32000,44100,48000"
+ channelMasks="AUDIO_CHANNEL_OUT_MONO|AUDIO_CHANNEL_OUT_STEREO|AUDIO_CHANNEL_OUT_5POINT1|AUDIO_CHANNEL_OUT_7POINT1"/>
+ <profile name="" format="AUDIO_FORMAT_E_AC3_JOC"
+ samplingRates="32000,44100,48000"
+ channelMasks="AUDIO_CHANNEL_OUT_MONO|AUDIO_CHANNEL_OUT_STEREO|AUDIO_CHANNEL_OUT_5POINT1|AUDIO_CHANNEL_OUT_7POINT1"/>
+ <profile name="" format="AUDIO_FORMAT_AC4"
+ samplingRates="32000,44100,48000"
+ channelMasks="AUDIO_CHANNEL_OUT_MONO|AUDIO_CHANNEL_OUT_STEREO|AUDIO_CHANNEL_OUT_5POINT1|AUDIO_CHANNEL_OUT_7POINT1"/>
+ </devicePort>
+ <devicePort tagName="MS12 Output" type="AUDIO_DEVICE_IN_BUS" role="source">
+ <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+ samplingRates="48000" channelMasks="AUDIO_CHANNEL_IN_STEREO"/>
+ </devicePort>
+ </devicePorts>
+ <routes>
+ <route type="mix" sink="MS12 Input" sources="ms12 input,ms12 compressed input"/>
+ <route type="mix" sink="ms12 output" sources="MS12 Output"/>
+ </routes>
+ </module>
+ </modules>
+</audioPolicyConfiguration>
diff --git a/services/audiopolicy/fuzzer/resources/test_audio_policy_primary_only_configuration.xml b/services/audiopolicy/fuzzer/resources/test_audio_policy_primary_only_configuration.xml
new file mode 100644
index 0000000..15e3773
--- /dev/null
+++ b/services/audiopolicy/fuzzer/resources/test_audio_policy_primary_only_configuration.xml
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<!-- Copyright (C) 2021 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<audioPolicyConfiguration version="1.0" xmlns:xi="http://www.w3.org/2001/XInclude">
+ <globalConfiguration speaker_drc_enabled="true"/>
+
+ <modules>
+ <!-- Primary module -->
+ <module name="primary" halVersion="2.0">
+ <attachedDevices>
+ <item>Speaker</item>
+ <item>Built-In Mic</item>
+ </attachedDevices>
+ <defaultOutputDevice>Speaker</defaultOutputDevice>
+ <mixPorts>
+ <mixPort name="primary output" role="source" flags="AUDIO_OUTPUT_FLAG_PRIMARY">
+ <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+ samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+ </mixPort>
+ <mixPort name="primary input" role="sink">
+ <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+ samplingRates="48000"
+ channelMasks="AUDIO_CHANNEL_IN_STEREO"/>
+ </mixPort>
+ </mixPorts>
+ <devicePorts>
+ <devicePort tagName="Speaker" type="AUDIO_DEVICE_OUT_SPEAKER" role="sink">
+ </devicePort>
+ <devicePort tagName="Built-In Mic" type="AUDIO_DEVICE_IN_BUILTIN_MIC" role="source">
+ </devicePort>
+ </devicePorts>
+ <routes>
+ <route type="mix" sink="Speaker"
+ sources="primary output"/>
+ <route type="mix" sink="primary input"
+ sources="Built-In Mic"/>
+ </routes>
+ </module>
+ </modules>
+</audioPolicyConfiguration>
diff --git a/services/audiopolicy/fuzzer/resources/test_tv_apm_configuration.xml b/services/audiopolicy/fuzzer/resources/test_tv_apm_configuration.xml
new file mode 100644
index 0000000..658d3ce
--- /dev/null
+++ b/services/audiopolicy/fuzzer/resources/test_tv_apm_configuration.xml
@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<!-- Copyright (C) 2021 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<audioPolicyConfiguration version="1.0" xmlns:xi="http://www.w3.org/2001/XInclude">
+ <globalConfiguration speaker_drc_enabled="false"/>
+ <modules>
+ <module name="primary" halVersion="2.0">
+ <attachedDevices>
+ <item>Speaker</item>
+ </attachedDevices>
+ <defaultOutputDevice>Speaker</defaultOutputDevice>
+ <mixPorts>
+ <!-- Profiles on the HDMI port are explicit for simplicity. In reality they are dynamic -->
+ <!-- Note: ports are intentionally arranged from more specific to less
+ specific in order to test b/140447125 for HW AV Sync, and similar "explicit matches" -->
+ <mixPort name="tunnel" role="source"
+ flags="AUDIO_OUTPUT_FLAG_DIRECT|AUDIO_OUTPUT_FLAG_HW_AV_SYNC">
+ <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+ samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+ </mixPort>
+ <mixPort name="low latency" role="source"
+ flags="AUDIO_OUTPUT_FLAG_DIRECT|AUDIO_OUTPUT_FLAG_MMAP_NOIRQ">
+ <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+ samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+ </mixPort>
+ <mixPort name="direct" role="source" flags="AUDIO_OUTPUT_FLAG_DIRECT">
+ <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+ samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+ </mixPort>
+ <mixPort name="primary output" role="source" flags="AUDIO_OUTPUT_FLAG_PRIMARY">
+ <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+ samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+ </mixPort>
+ </mixPorts>
+ <devicePorts>
+ <devicePort tagName="Speaker" type="AUDIO_DEVICE_OUT_SPEAKER" role="sink" />
+ <devicePort tagName="Out Aux Digital" type="AUDIO_DEVICE_OUT_AUX_DIGITAL" role="sink" />
+ </devicePorts>
+ <routes>
+ <route type="mix" sink="Speaker" sources="primary output"/>
+ <route type="mix" sink="Out Aux Digital" sources="primary output,tunnel,direct,low latency"/>
+ </routes>
+ </module>
+ </modules>
+</audioPolicyConfiguration>