Merge "Added vehicleManager_fuzzer" am: e33bc952cf

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1510958

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I21b3033079689c95a0ac26f0ee00bdcda0f8888c

4 files changed, 649 insertions, 0 deletions

diff --git a/automotive/vehicle/2.0/default/Android.bp b/automotive/vehicle/2.0/default/Android.bp
index f4d8e89fca..f24b1f5474 100644
--- a/automotive/vehicle/2.0/default/Android.bp
+++ b/automotive/vehicle/2.0/default/Android.bp
@@ -221,3 +221,29 @@ cc_binary {
         "android.hardware.automotive.vehicle@2.0-libproto-native",
     ],
 }
+
+cc_fuzz {
+    name: "vehicleManager_fuzzer",
+    vendor: true,
+    defaults: ["vhal_v2_0_target_defaults"],
+    whole_static_libs: ["android.hardware.automotive.vehicle@2.0-manager-lib"],
+    srcs: [
+        "tests/fuzzer/VehicleManager_fuzzer.cpp",
+    ],
+    shared_libs: [
+        "libbase",
+        "libcutils",
+        "libbinder_ndk",
+    ],
+    header_libs: ["libbase_headers"],
+    local_include_dirs: [
+        "common/include",
+        "tests",
+    ],
+    fuzz_config: {
+        cc: [
+            "android-media-fuzzing-reports@google.com",
+        ],
+        componentid: 533764,
+    },
+}
diff --git a/automotive/vehicle/2.0/default/tests/fuzzer/README.md b/automotive/vehicle/2.0/default/tests/fuzzer/README.md
new file mode 100644
index 0000000000..3fa0d3f845
--- /dev/null
+++ b/automotive/vehicle/2.0/default/tests/fuzzer/README.md
@@ -0,0 +1,66 @@
+# Fuzzer for android.hardware.automotive.vehicle@2.0-manager-lib
+
+## Plugin Design Considerations
+The fuzzer plugin for android.hardware.automotive.vehicle@2.0-manager-lib 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.
+
+Vehicle Manager supports the following parameters:
+1. Vehicle Property (parameter name: `vehicleProp`)
+2. Diagnostic Integer Sensor Index (parameter name: `diagnosticIntIndex`)
+3. Diagnostic Float Sensor Index (parameter name: `diagnosticFloatIndex`)
+4. Availability Message Type (parameter name: `availabilityMsgType`)
+5. Subscription Message Type (parameter name: `subscriptionMsgType`)
+
+| Parameter| Valid Values| Configured Value|
+|------------- |-------------| ----- |
+| `vehicleProp` | 0.`VehicleProperty::INVALID` 1.`VehicleProperty::HVAC_FAN_SPEED` 2.`VehicleProperty::INFO_MAKE` 3.`VehicleProperty::DISPLAY_BRIGHTNESS`  4.`VehicleProperty::INFO_FUEL_CAPACITY` 5.`VehicleProperty::HVAC_SEAT_TEMPERATURE`| Value obtained from FuzzedDataProvider |
+| `diagnosticIntIndex`   | 0.`DiagnosticIntegerSensorIndex::FUEL_SYSTEM_STATUS` 1.`DiagnosticIntegerSensorIndex::MALFUNCTION_INDICATOR_LIGHT_ON` 2.`DiagnosticIntegerSensorIndex::NUM_OXYGEN_SENSORS_PRESENT` 3.`DiagnosticIntegerSensorIndex::FUEL_TYPE`  | Value obtained from FuzzedDataProvider |
+| `diagnosticFloatIndex`   | 0.`DiagnosticFloatSensorIndex::CALCULATED_ENGINE_LOAD` 1.`DiagnosticFloatSensorIndex::SHORT_TERM_FUEL_TRIM_BANK1` 2.`DiagnosticFloatSensorIndex::LONG_TERM_FUEL_TRIM_BANK1` 3.`DiagnosticFloatSensorIndex::THROTTLE_POSITION`  | Value obtained from FuzzedDataProvider |
+| `availabilityMsgType`   | 0.`VmsMessageType::AVAILABILITY_CHANGE` 1.`VmsMessageType::AVAILABILITY_RESPONSE` | Value obtained from FuzzedDataProvider |
+| `subscriptionMsgType`   | 0.`VmsMessageType::SUBSCRIPTIONS_CHANGE` 1.`VmsMessageType::SUBSCRIPTIONS_RESPONSE` | Value obtained from FuzzedDataProvider |
+
+This also ensures that the plugin is always deterministic for any given input.
+
+## Build
+
+This describes steps to build vehicleManager_fuzzer binary.
+
+### Android
+
+#### Steps to build
+Build the fuzzer
+```
+  $ mm -j$(nproc) vehicleManager_fuzzer
+```
+
+#### Steps to run
+Create a directory CORPUS_DIR
+```
+  $ adb shell mkdir /data/local/tmp/CORPUS_DIR
+```
+
+##### Some Additional steps needed to run the vehicleManager_fuzzer successfully on device
+
+1. Push the following libraries from /vendor/lib/ and /vendor/lib64/ folders of your workspace to the device's /vendor/lib/ and /vendor/lib64/ :
+```
+1.1  android.hardware.automotive.vehicle@2.0.so
+1.2  carwatchdog_aidl_interface-V2-ndk_platform.so
+```
+2. Now, reboot the device using command
+```
+  $ adb reboot
+```
+
+##### To run the fuzzer on device
+```
+  $ adb sync data
+  $ adb shell LD_LIBRARY_PATH=/vendor/lib64 /data/fuzz/${TARGET_ARCH}/vehicleManager_fuzzer/vendor/vehicleManager_fuzzer /data/local/tmp/CORPUS_DIR
+```
+
+## References:
+ * http://llvm.org/docs/LibFuzzer.html
+ * https://github.com/google/oss-fuzz
diff --git a/automotive/vehicle/2.0/default/tests/fuzzer/VehicleManager_fuzzer.cpp b/automotive/vehicle/2.0/default/tests/fuzzer/VehicleManager_fuzzer.cpp
new file mode 100644
index 0000000000..796c08f2f2
--- /dev/null
+++ b/automotive/vehicle/2.0/default/tests/fuzzer/VehicleManager_fuzzer.cpp
@@ -0,0 +1,433 @@
+/******************************************************************************
+ *
+ * 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.
+ *
+ *****************************************************************************
+ * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
+ */
+
+#include "VehicleManager_fuzzer.h"
+#include <utils/SystemClock.h>
+#include <vhal_v2_0/Obd2SensorStore.h>
+#include <vhal_v2_0/WatchdogClient.h>
+
+namespace android::hardware::automotive::vehicle::V2_0::fuzzer {
+
+using ::aidl::android::automotive::watchdog::TimeoutLength;
+using ::android::elapsedRealtimeNano;
+using ::android::Looper;
+using ::android::sp;
+using ::android::hardware::hidl_handle;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::automotive::vehicle::V2_0::DiagnosticFloatSensorIndex;
+using ::android::hardware::automotive::vehicle::V2_0::DiagnosticIntegerSensorIndex;
+using ::android::hardware::automotive::vehicle::V2_0::kCustomComplexProperty;
+using ::android::hardware::automotive::vehicle::V2_0::kVehicleProperties;
+using ::android::hardware::automotive::vehicle::V2_0::MockedVehicleCallback;
+using ::android::hardware::automotive::vehicle::V2_0::Obd2SensorStore;
+using ::android::hardware::automotive::vehicle::V2_0::recyclable_ptr;
+using ::android::hardware::automotive::vehicle::V2_0::StatusCode;
+using ::android::hardware::automotive::vehicle::V2_0::SubscribeFlags;
+using ::android::hardware::automotive::vehicle::V2_0::SubscribeOptions;
+using ::android::hardware::automotive::vehicle::V2_0::VehicleAreaConfig;
+using ::android::hardware::automotive::vehicle::V2_0::VehicleHal;
+using ::android::hardware::automotive::vehicle::V2_0::VehicleHalManager;
+using ::android::hardware::automotive::vehicle::V2_0::VehiclePropConfig;
+using ::android::hardware::automotive::vehicle::V2_0::VehicleProperty;
+using ::android::hardware::automotive::vehicle::V2_0::VehiclePropertyAccess;
+using ::android::hardware::automotive::vehicle::V2_0::VehiclePropertyChangeMode;
+using ::android::hardware::automotive::vehicle::V2_0::VehiclePropertyStore;
+using ::android::hardware::automotive::vehicle::V2_0::VehiclePropertyType;
+using ::android::hardware::automotive::vehicle::V2_0::VehiclePropValue;
+using ::android::hardware::automotive::vehicle::V2_0::VehiclePropValuePool;
+using ::android::hardware::automotive::vehicle::V2_0::VmsMessageType;
+using ::android::hardware::automotive::vehicle::V2_0::WatchdogClient;
+using ::android::hardware::automotive::vehicle::V2_0::vms::createAvailabilityRequest;
+using ::android::hardware::automotive::vehicle::V2_0::vms::createBaseVmsMessage;
+using ::android::hardware::automotive::vehicle::V2_0::vms::createPublisherIdRequest;
+using ::android::hardware::automotive::vehicle::V2_0::vms::createStartSessionMessage;
+using ::android::hardware::automotive::vehicle::V2_0::vms::createSubscriptionsRequest;
+using ::android::hardware::automotive::vehicle::V2_0::vms::getAvailableLayers;
+using ::android::hardware::automotive::vehicle::V2_0::vms::getSequenceNumberForAvailabilityState;
+using ::android::hardware::automotive::vehicle::V2_0::vms::getSequenceNumberForSubscriptionsState;
+using ::android::hardware::automotive::vehicle::V2_0::vms::hasServiceNewlyStarted;
+using ::android::hardware::automotive::vehicle::V2_0::vms::isAvailabilitySequenceNumberNewer;
+using ::android::hardware::automotive::vehicle::V2_0::vms::isSequenceNumberNewer;
+using ::android::hardware::automotive::vehicle::V2_0::vms::isValidVmsMessage;
+using ::android::hardware::automotive::vehicle::V2_0::vms::parseData;
+using ::android::hardware::automotive::vehicle::V2_0::vms::parseMessageType;
+using ::android::hardware::automotive::vehicle::V2_0::vms::parsePublisherIdResponse;
+using ::android::hardware::automotive::vehicle::V2_0::vms::parseStartSessionMessage;
+using ::android::hardware::automotive::vehicle::V2_0::vms::VmsLayer;
+using ::android::hardware::automotive::vehicle::V2_0::vms::VmsLayerAndPublisher;
+using ::android::hardware::automotive::vehicle::V2_0::vms::VmsLayerOffering;
+using ::android::hardware::automotive::vehicle::V2_0::vms::VmsOffers;
+
+constexpr const char kCarMake[] = "Default Car";
+constexpr VehicleProperty kVehicleProp[] = {VehicleProperty::INVALID,
+                                            VehicleProperty::HVAC_FAN_SPEED,
+                                            VehicleProperty::INFO_MAKE,
+                                            VehicleProperty::DISPLAY_BRIGHTNESS,
+                                            VehicleProperty::INFO_FUEL_CAPACITY,
+                                            VehicleProperty::HVAC_SEAT_TEMPERATURE};
+constexpr DiagnosticIntegerSensorIndex kDiagnosticIntIndex[] = {
+        DiagnosticIntegerSensorIndex::FUEL_SYSTEM_STATUS,
+        DiagnosticIntegerSensorIndex::MALFUNCTION_INDICATOR_LIGHT_ON,
+        DiagnosticIntegerSensorIndex::NUM_OXYGEN_SENSORS_PRESENT,
+        DiagnosticIntegerSensorIndex::FUEL_TYPE};
+constexpr DiagnosticFloatSensorIndex kDiagnosticFloatIndex[] = {
+        DiagnosticFloatSensorIndex::CALCULATED_ENGINE_LOAD,
+        DiagnosticFloatSensorIndex::SHORT_TERM_FUEL_TRIM_BANK1,
+        DiagnosticFloatSensorIndex::LONG_TERM_FUEL_TRIM_BANK1,
+        DiagnosticFloatSensorIndex::THROTTLE_POSITION};
+constexpr size_t kVehiclePropArrayLength = std::size(kVehicleProp);
+constexpr size_t kIntSensorArrayLength = std::size(kDiagnosticIntIndex);
+constexpr size_t kFloatSensorArrayLength = std::size(kDiagnosticFloatIndex);
+constexpr VmsMessageType kAvailabilityMessageType[] = {VmsMessageType::AVAILABILITY_CHANGE,
+                                                       VmsMessageType::AVAILABILITY_RESPONSE};
+constexpr VmsMessageType kSubscriptionMessageType[] = {VmsMessageType::SUBSCRIPTIONS_CHANGE,
+                                                       VmsMessageType::SUBSCRIPTIONS_RESPONSE};
+
+MockedVehicleHal::VehiclePropValuePtr MockedVehicleHal::get(
+        const VehiclePropValue& requestedPropValue, StatusCode* outStatus) {
+    VehiclePropValuePtr pValue = nullptr;
+    if (outStatus == nullptr) {
+        return pValue;
+    }
+    auto property = static_cast<VehicleProperty>(requestedPropValue.prop);
+    int32_t areaId = requestedPropValue.areaId;
+    *outStatus = StatusCode::OK;
+
+    switch (property) {
+        case VehicleProperty::INFO_MAKE:
+            pValue = getValuePool()->obtainString(kCarMake);
+            break;
+        case VehicleProperty::INFO_FUEL_CAPACITY:
+            if (mFuelCapacityAttemptsLeft-- > 0) {
+                *outStatus = StatusCode::TRY_AGAIN;
+            } else {
+                pValue = getValuePool()->obtainFloat(42.42);
+            }
+            break;
+        default:
+            if (requestedPropValue.prop == kCustomComplexProperty) {
+                pValue = getValuePool()->obtainComplex();
+                pValue->value.int32Values = hidl_vec<int32_t>{10, 20};
+                pValue->value.int64Values = hidl_vec<int64_t>{30, 40};
+                pValue->value.floatValues = hidl_vec<float_t>{1.1, 2.2};
+                pValue->value.bytes = hidl_vec<uint8_t>{1, 2, 3};
+                pValue->value.stringValue = kCarMake;
+                break;
+            }
+            auto key = makeKey(toInt(property), areaId);
+            pValue = getValuePool()->obtain(mValues[key]);
+    }
+
+    if (*outStatus == StatusCode::OK && pValue.get() != nullptr) {
+        pValue->prop = toInt(property);
+        pValue->areaId = areaId;
+        pValue->timestamp = elapsedRealtimeNano();
+    }
+
+    return pValue;
+}
+
+void VehicleHalManagerFuzzer::process(const uint8_t* data, size_t size) {
+    mFuzzedDataProvider = new FuzzedDataProvider(data, size);
+    invokeDebug();
+    invokePropConfigs();
+    invokeSubscribe();
+    invokeSetAndGetValues();
+    invokeObd2SensorStore();
+    invokeVmsUtils();
+    invokeVehiclePropStore();
+    invokeWatchDogClient();
+}
+
+void VehicleHalManagerFuzzer::invokeDebug() {
+    hidl_string debugOption = mFuzzedDataProvider->PickValueInArray(
+            {"--help", "--list", "--get", "--set", "", "invalid"});
+    hidl_handle fd = {};
+    fd.setTo(native_handle_create(/*numFds=*/1, /*numInts=*/0), /*shouldOwn=*/true);
+
+    mManager->debug(fd, {});
+    mManager->debug(fd, {debugOption});
+}
+
+void VehicleHalManagerFuzzer::invokePropConfigs() {
+    int32_t vehicleProp1 = mFuzzedDataProvider->ConsumeIntegral<int32_t>();
+    int32_t vehicleProp2 = mFuzzedDataProvider->ConsumeIntegral<int32_t>();
+
+    hidl_vec<int32_t> properties = {vehicleProp1, vehicleProp2};
+
+    mManager->getPropConfigs(properties,
+                             []([[maybe_unused]] StatusCode status,
+                                [[maybe_unused]] const hidl_vec<VehiclePropConfig>& c) {});
+
+    mManager->getPropConfigs({toInt(kVehicleProp[abs(vehicleProp1) % kVehiclePropArrayLength])},
+                             []([[maybe_unused]] StatusCode status,
+                                [[maybe_unused]] const hidl_vec<VehiclePropConfig>& c) {});
+
+    mManager->getAllPropConfigs(
+            []([[maybe_unused]] const hidl_vec<VehiclePropConfig>& propConfigs) {});
+}
+
+void VehicleHalManagerFuzzer::invokeSubscribe() {
+    int32_t vehicleProp1 = mFuzzedDataProvider->ConsumeIntegral<int32_t>();
+    int32_t vehicleProp2 = mFuzzedDataProvider->ConsumeIntegral<int32_t>();
+    int32_t vehicleProp3 = mFuzzedDataProvider->ConsumeIntegral<int32_t>();
+
+    const auto prop1 = toInt(kVehicleProp[abs(vehicleProp1) % kVehiclePropArrayLength]);
+    sp<MockedVehicleCallback> cb = new MockedVehicleCallback();
+
+    hidl_vec<SubscribeOptions> options = {
+            SubscribeOptions{.propId = prop1, .flags = SubscribeFlags::EVENTS_FROM_CAR}};
+
+    mManager->subscribe(cb, options);
+
+    auto unsubscribedValue = mObjectPool->obtain(VehiclePropertyType::INT32);
+    unsubscribedValue->prop = toInt(kVehicleProp[abs(vehicleProp2) % kVehiclePropArrayLength]);
+
+    mHal->sendPropEvent(std::move(unsubscribedValue));
+    cb->getReceivedEvents();
+    cb->waitForExpectedEvents(0);
+
+    auto subscribedValue = mObjectPool->obtain(VehiclePropertyType::INT32);
+    subscribedValue->prop = toInt(kVehicleProp[abs(vehicleProp2) % kVehiclePropArrayLength]);
+    subscribedValue->value.int32Values[0] = INT32_MAX;
+
+    cb->reset();
+    VehiclePropValue actualValue(*subscribedValue.get());
+    mHal->sendPropEvent(std::move(subscribedValue));
+    cb->waitForExpectedEvents(1);
+    mManager->unsubscribe(cb, prop1);
+
+    sp<MockedVehicleCallback> cb2 = new MockedVehicleCallback();
+
+    hidl_vec<SubscribeOptions> options2 = {
+            SubscribeOptions{
+                    .propId = toInt(kVehicleProp[abs(vehicleProp3) % kVehiclePropArrayLength]),
+                    .flags = SubscribeFlags::EVENTS_FROM_CAR},
+    };
+
+    mManager->subscribe(cb2, options2);
+
+    mHal->sendHalError(StatusCode::TRY_AGAIN,
+                       toInt(kVehicleProp[abs(vehicleProp3) % kVehiclePropArrayLength]),
+                       /*areaId=*/0);
+}
+
+void VehicleHalManagerFuzzer::invokeSetAndGetValues() {
+    uint32_t vehicleProp1 =
+            mFuzzedDataProvider->ConsumeIntegralInRange<uint32_t>(0, kVehiclePropArrayLength - 1);
+    uint32_t vehicleProp2 =
+            mFuzzedDataProvider->ConsumeIntegralInRange<uint32_t>(0, kVehiclePropArrayLength - 1);
+    uint32_t vehicleProp3 =
+            mFuzzedDataProvider->ConsumeIntegralInRange<uint32_t>(0, kVehiclePropArrayLength - 1);
+
+    invokeGet(kCustomComplexProperty, 0);
+    invokeGet(toInt(kVehicleProp[vehicleProp2]), 0);
+    invokeGet(toInt(kVehicleProp[vehicleProp1]), 0);
+
+    auto expectedValue = mObjectPool->obtainInt32(mFuzzedDataProvider->ConsumeIntegral<int32_t>());
+    mObjectPool->obtainInt64(mFuzzedDataProvider->ConsumeIntegral<int64_t>());
+    mObjectPool->obtainFloat(mFuzzedDataProvider->ConsumeFloatingPoint<float>());
+    mObjectPool->obtainBoolean(mFuzzedDataProvider->ConsumeBool());
+    expectedValue->prop = toInt(kVehicleProp[vehicleProp2]);
+    expectedValue->areaId = 0;
+
+    mManager->set(*expectedValue.get());
+    invokeGet(toInt(kVehicleProp[vehicleProp2]), 0);
+    expectedValue->prop = toInt(kVehicleProp[vehicleProp3]);
+    mManager->set(*expectedValue.get());
+    expectedValue->prop = toInt(VehicleProperty::INVALID);
+    mManager->set(*expectedValue.get());
+}
+
+void VehicleHalManagerFuzzer::invokeObd2SensorStore() {
+    uint32_t diagnosticIntIndex =
+            mFuzzedDataProvider->ConsumeIntegralInRange<uint32_t>(0, kIntSensorArrayLength - 1);
+    int32_t diagnosticIntValue = mFuzzedDataProvider->ConsumeIntegral<int32_t>();
+    uint32_t diagnosticFloatIndex =
+            mFuzzedDataProvider->ConsumeIntegralInRange<uint32_t>(0, kFloatSensorArrayLength - 1);
+    float diagnosticFloatValue = mFuzzedDataProvider->ConsumeFloatingPoint<float>();
+
+    std::unique_ptr<Obd2SensorStore> sensorStore(
+            new Obd2SensorStore(kIntSensorArrayLength, kFloatSensorArrayLength));
+    if (sensorStore) {
+        sensorStore->setIntegerSensor(kDiagnosticIntIndex[diagnosticIntIndex], diagnosticIntValue);
+        sensorStore->setFloatSensor(kDiagnosticFloatIndex[diagnosticFloatIndex],
+                                    diagnosticFloatValue);
+        sensorStore->getIntegerSensors();
+        sensorStore->getFloatSensors();
+        sensorStore->getSensorsBitmask();
+        static std::vector<std::string> sampleDtcs = {"P0070",
+                                                      "P0102"
+                                                      "P0123"};
+        for (auto&& dtc : sampleDtcs) {
+            auto freezeFrame = createVehiclePropValue(VehiclePropertyType::MIXED, 0);
+            sensorStore->fillPropValue(dtc, freezeFrame.get());
+            freezeFrame->prop = static_cast<int>(VehicleProperty::OBD2_FREEZE_FRAME);
+        }
+    }
+}
+
+void VehicleHalManagerFuzzer::invokeVmsUtils() {
+    bool availabilityMsgType = mFuzzedDataProvider->ConsumeBool();
+    bool subscriptionMsgType = mFuzzedDataProvider->ConsumeBool();
+    int32_t intValue = mFuzzedDataProvider->ConsumeIntegral<int32_t>();
+
+    VmsLayer layer(1, 0, 2);
+    auto message = createSubscribeMessage(layer);
+    isValidVmsMessage(*message);
+    message = createUnsubscribeMessage(layer);
+
+    VmsOffers offers = {intValue, {VmsLayerOffering(VmsLayer(1, 0, 2))}};
+    message = createOfferingMessage(offers);
+    std::vector<VmsLayer> dependencies = {VmsLayer(2, 0, 2), VmsLayer(3, 0, 3)};
+    std::vector<VmsLayerOffering> offering = {VmsLayerOffering(layer, dependencies)};
+    offers = {intValue, offering};
+    message = createOfferingMessage(offers);
+
+    message = createAvailabilityRequest();
+    message = createSubscriptionsRequest();
+
+    std::string bytes = "placeholder";
+    const VmsLayerAndPublisher layer_and_publisher(VmsLayer(2, 0, 1), intValue);
+    message = createDataMessageWithLayerPublisherInfo(layer_and_publisher, bytes);
+    parseData(*message);
+    createSubscribeToPublisherMessage(layer_and_publisher);
+    createUnsubscribeToPublisherMessage(layer_and_publisher);
+
+    std::string pub_bytes = "pub_id";
+    message = createPublisherIdRequest(pub_bytes);
+    message = createBaseVmsMessage(2);
+    message->value.int32Values =
+            hidl_vec<int32_t>{toInt(VmsMessageType::PUBLISHER_ID_RESPONSE), intValue};
+    parsePublisherIdResponse(*message);
+
+    message->value.int32Values =
+            hidl_vec<int32_t>{toInt(kSubscriptionMessageType[subscriptionMsgType]), intValue};
+    getSequenceNumberForSubscriptionsState(*message);
+
+    message->value.int32Values = hidl_vec<int32_t>{toInt(kSubscriptionMessageType[0]), intValue};
+    isSequenceNumberNewer(*message, intValue + 1);
+    invokeGetSubscribedLayers(kSubscriptionMessageType[subscriptionMsgType]);
+
+    message->value.int32Values =
+            hidl_vec<int32_t>{toInt(kAvailabilityMessageType[availabilityMsgType]), 0};
+    hasServiceNewlyStarted(*message);
+    message = createStartSessionMessage(intValue, intValue + 1);
+    parseMessageType(*message);
+
+    message->value.int32Values =
+            hidl_vec<int32_t>{toInt(kAvailabilityMessageType[availabilityMsgType]), intValue};
+    isAvailabilitySequenceNumberNewer(*message, intValue + 1);
+
+    message->value.int32Values =
+            hidl_vec<int32_t>{toInt(kAvailabilityMessageType[availabilityMsgType]), intValue};
+    getSequenceNumberForAvailabilityState(*message);
+    message = createBaseVmsMessage(3);
+    int new_service_id;
+    message->value.int32Values = hidl_vec<int32_t>{toInt(VmsMessageType::START_SESSION), 0, -1};
+    parseStartSessionMessage(*message, -1, 0, &new_service_id);
+}
+
+void VehicleHalManagerFuzzer::invokeGet(int32_t property, int32_t areaId) {
+    VehiclePropValue requestedValue{};
+    requestedValue.prop = property;
+    requestedValue.areaId = areaId;
+    mActualValue = VehiclePropValue{};  // reset previous values
+
+    StatusCode refStatus;
+    VehiclePropValue refValue;
+    mManager->get(requestedValue,
+                  [&refStatus, &refValue](StatusCode status, const VehiclePropValue& value) {
+                      refStatus = status;
+                      refValue = value;
+                  });
+
+    mActualValue = refValue;
+    mActualStatusCode = refStatus;
+}
+
+void VehicleHalManagerFuzzer::invokeGetSubscribedLayers(VmsMessageType type) {
+    VmsOffers offers = {123,
+                        {VmsLayerOffering(VmsLayer(1, 0, 1), {VmsLayer(4, 1, 1)}),
+                         VmsLayerOffering(VmsLayer(2, 0, 1))}};
+    auto message = createBaseVmsMessage(16);
+    message->value.int32Values = hidl_vec<int32_t>{toInt(type),
+                                                   1234,  // sequence number
+                                                   2,     // number of layers
+                                                   1,     // number of associated layers
+                                                   1,     // layer 1
+                                                   0,           1,
+                                                   4,  // layer 2
+                                                   1,           1,
+                                                   2,  // associated layer
+                                                   0,           1,
+                                                   2,    // number of publisher IDs
+                                                   111,  // publisher IDs
+                                                   123};
+    isValidVmsMessage(*message);
+    getSubscribedLayers(*message, offers);
+    getAvailableLayers(*message);
+}
+
+void VehicleHalManagerFuzzer::invokeVehiclePropStore() {
+    bool shouldWriteStatus = mFuzzedDataProvider->ConsumeBool();
+    int32_t vehicleProp = mFuzzedDataProvider->ConsumeIntegral<int32_t>();
+    auto store = std::make_unique<VehiclePropertyStore>();
+    VehiclePropConfig config{
+            .prop = vehicleProp,
+            .access = VehiclePropertyAccess::READ,
+            .changeMode = VehiclePropertyChangeMode::STATIC,
+            .areaConfigs = {VehicleAreaConfig{.areaId = (0)}},
+    };
+    store->registerProperty(config);
+    VehiclePropValue propValue{};
+    propValue.prop = vehicleProp;
+    propValue.areaId = 0;
+    store->writeValue(propValue, shouldWriteStatus);
+    store->readAllValues();
+    store->getAllConfigs();
+    store->getConfigOrNull(vehicleProp);
+    store->readValuesForProperty(vehicleProp);
+    store->readValueOrNull(propValue);
+    store->readValueOrNull(propValue.prop, propValue.areaId, 0);
+    store->removeValuesForProperty(vehicleProp);
+    store->removeValue(propValue);
+    store->getConfigOrDie(vehicleProp);
+}
+
+void VehicleHalManagerFuzzer::invokeWatchDogClient() {
+    auto service = new VehicleHalManager(mHal.get());
+    sp<Looper> looper(Looper::prepare(/*opts=*/mFuzzedDataProvider->ConsumeBool()));
+    if (auto watchdogClient = ndk::SharedRefBase::make<WatchdogClient>(looper, service);
+        watchdogClient->initialize()) {
+        watchdogClient->checkIfAlive(-1, TimeoutLength::TIMEOUT_NORMAL);
+        watchdogClient->prepareProcessTermination();
+    }
+    delete service;
+}
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+    VehicleHalManagerFuzzer vmFuzzer;
+    vmFuzzer.process(data, size);
+    return 0;
+}
+
+}  // namespace android::hardware::automotive::vehicle::V2_0::fuzzer
diff --git a/automotive/vehicle/2.0/default/tests/fuzzer/VehicleManager_fuzzer.h b/automotive/vehicle/2.0/default/tests/fuzzer/VehicleManager_fuzzer.h
new file mode 100644
index 0000000000..e9335d3334
--- /dev/null
+++ b/automotive/vehicle/2.0/default/tests/fuzzer/VehicleManager_fuzzer.h
@@ -0,0 +1,124 @@
+/******************************************************************************
+ *
+ * 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.
+ *
+ *****************************************************************************
+ * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
+ */
+
+#ifndef __VEHICLE_MANAGER_FUZZER_H__
+#define __VEHICLE_MANAGER_FUZZER_H__
+
+#include <vhal_v2_0/VehicleHalManager.h>
+#include <vhal_v2_0/VehiclePropertyStore.h>
+#include <vhal_v2_0/VmsUtils.h>
+
+#include <VehicleHalTestUtils.h>
+#include <fuzzer/FuzzedDataProvider.h>
+
+namespace android::hardware::automotive::vehicle::V2_0::fuzzer {
+
+constexpr int kRetriableAttempts = 3;
+
+class MockedVehicleHal : public VehicleHal {
+  public:
+    MockedVehicleHal()
+        : mFuelCapacityAttemptsLeft(kRetriableAttempts),
+          mMirrorFoldAttemptsLeft(kRetriableAttempts) {
+        mConfigs.assign(std::begin(kVehicleProperties), std::end(kVehicleProperties));
+    }
+
+    std::vector<VehiclePropConfig> listProperties() override { return mConfigs; }
+
+    VehiclePropValuePtr get(const VehiclePropValue& requestedPropValue,
+                            StatusCode* outStatus) override;
+
+    StatusCode set(const VehiclePropValue& propValue) override {
+        if (toInt(VehicleProperty::MIRROR_FOLD) == propValue.prop &&
+            mMirrorFoldAttemptsLeft-- > 0) {
+            return StatusCode::TRY_AGAIN;
+        }
+
+        mValues[makeKey(propValue)] = propValue;
+        return StatusCode::OK;
+    }
+
+    StatusCode subscribe(int32_t /* property */, float /* sampleRate */) override {
+        return StatusCode::OK;
+    }
+
+    StatusCode unsubscribe(int32_t /* property */) override { return StatusCode::OK; }
+
+    void sendPropEvent(recyclable_ptr<VehiclePropValue> value) { doHalEvent(std::move(value)); }
+
+    void sendHalError(StatusCode error, int32_t property, int32_t areaId) {
+        doHalPropertySetError(error, property, areaId);
+    }
+
+  private:
+    int64_t makeKey(const VehiclePropValue& v) const { return makeKey(v.prop, v.areaId); }
+
+    int64_t makeKey(int32_t prop, int32_t area) const {
+        return (static_cast<int64_t>(prop) << 32) | area;
+    }
+
+  private:
+    std::vector<VehiclePropConfig> mConfigs;
+    std::unordered_map<int64_t, VehiclePropValue> mValues;
+    int mFuelCapacityAttemptsLeft;
+    int mMirrorFoldAttemptsLeft;
+};
+
+class VehicleHalManagerFuzzer {
+  public:
+    VehicleHalManagerFuzzer() {
+        mHal.reset(new MockedVehicleHal);
+        mManager.reset(new VehicleHalManager(mHal.get()));
+        mObjectPool = mHal->getValuePool();
+    }
+    ~VehicleHalManagerFuzzer() {
+        mManager.reset(nullptr);
+        mHal.reset(nullptr);
+        mObjectPool = nullptr;
+        if (mFuzzedDataProvider) {
+            delete mFuzzedDataProvider;
+        }
+    }
+    void process(const uint8_t* data, size_t size);
+
+  private:
+    FuzzedDataProvider* mFuzzedDataProvider = nullptr;
+    VehiclePropValue mActualValue = VehiclePropValue{};
+    StatusCode mActualStatusCode = StatusCode::OK;
+
+    VehiclePropValuePool* mObjectPool = nullptr;
+    std::unique_ptr<MockedVehicleHal> mHal;
+    std::unique_ptr<VehicleHalManager> mManager;
+
+    void invokeDebug();
+    void invokePropConfigs();
+    void invokeSubscribe();
+    void invokeSetAndGetValues();
+    void invokeObd2SensorStore();
+    void invokeVmsUtils();
+    void invokeVehiclePropStore();
+    void invokeWatchDogClient();
+    void invokeGetSubscribedLayers(VmsMessageType type);
+    void invokeGet(int32_t property, int32_t areaId);
+};
+
+}  // namespace android::hardware::automotive::vehicle::V2_0::fuzzer
+
+#endif  // __VEHICLE_MANAGER_FUZZER_H__