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Commit efd9b024 authored by Xusong Wang's avatar Xusong Wang Committed by Automerger Merge Worker
Browse files

Allow compilations in TOCTOU tests to fail with GENERAL_FAILURE. am: 0b617ae0

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1351583

Change-Id: I2b8d60a749f39823cb8daa2735dd8e4f6c7cfd2f
parents 6223c5fb 0b617ae0
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+38 −9
Original line number Diff line number Diff line
@@ -315,7 +315,8 @@ class CompilationCachingTestBase : public testing::Test {

    void saveModelToCache(const Model& model, const hidl_vec<hidl_handle>& modelCache,
                          const hidl_vec<hidl_handle>& dataCache,
                          sp<IPreparedModel>* preparedModel = nullptr) {
                          sp<IPreparedModel>* preparedModel = nullptr,
                          bool allowGeneralFailure = false) {
        if (preparedModel != nullptr) *preparedModel = nullptr;

        // Launch prepare model.
@@ -329,7 +330,10 @@ class CompilationCachingTestBase : public testing::Test {

        // Retrieve prepared model.
        preparedModelCallback->wait();
        ASSERT_EQ(preparedModelCallback->getStatus(), ErrorStatus::NONE);
        const auto prepareCallbackStatus = preparedModelCallback->getStatus();
        if (!allowGeneralFailure || prepareCallbackStatus != ErrorStatus::GENERAL_FAILURE) {
            ASSERT_EQ(prepareCallbackStatus, ErrorStatus::NONE);
        }
        if (preparedModel != nullptr) {
            *preparedModel = IPreparedModel::castFrom(preparedModelCallback->getPreparedModel())
                                     .withDefault(nullptr);
@@ -1022,7 +1026,8 @@ static void copyCacheFiles(const std::vector<std::vector<std::string>>& from,

// Number of operations in the large test model.
constexpr uint32_t kLargeModelSize = 100;
constexpr uint32_t kNumIterationsTOCTOU = 100;
constexpr uint32_t kNumSuccessfulIterationsTOCTOU = 100;
constexpr uint32_t kMaxNumFailedIterationsTOCTOU = 100;

TEST_P(CompilationCachingTest, SaveToCache_TOCTOU) {
    if (!mIsCachingSupported) return;
@@ -1050,18 +1055,30 @@ TEST_P(CompilationCachingTest, SaveToCache_TOCTOU) {
    // Use a different token for modelAdd.
    mToken[0]++;

    // This test is probabilistic, so we run it multiple times.
    for (uint32_t i = 0; i < kNumIterationsTOCTOU; i++) {
    // This test is probabilistic, so we run it multiple times. We allow the compilation to fail
    // because it is not related to the security aspect of the TOCTOU test. However, we need to have
    // enough successful iterations to ensure the test coverage.
    uint32_t numSuccessfulIterations = 0, numFailedIterations = 0;
    while (numSuccessfulIterations < kNumSuccessfulIterationsTOCTOU) {
        // Save the modelAdd compilation to cache.
        {
            hidl_vec<hidl_handle> modelCache, dataCache;
            createCacheHandles(mModelCache, AccessMode::READ_WRITE, &modelCache);
            createCacheHandles(mDataCache, AccessMode::READ_WRITE, &dataCache);

            sp<IPreparedModel> preparedModel = nullptr;
            // Spawn a thread to copy the cache content concurrently while saving to cache.
            std::thread thread(copyCacheFiles, std::cref(modelCacheMul), std::cref(mModelCache));
            saveModelToCache(modelAdd, modelCache, dataCache);
            saveModelToCache(modelAdd, modelCache, dataCache, &preparedModel,
                             /*allowGeneralFailure=*/true);
            thread.join();

            if (preparedModel == nullptr) {
                numFailedIterations++;
                ASSERT_LE(numFailedIterations, kMaxNumFailedIterationsTOCTOU);
            } else {
                numSuccessfulIterations++;
            }
        }

        // Retrieve preparedModel from cache.
@@ -1112,14 +1129,26 @@ TEST_P(CompilationCachingTest, PrepareFromCache_TOCTOU) {
    // Use a different token for modelAdd.
    mToken[0]++;

    // This test is probabilistic, so we run it multiple times.
    for (uint32_t i = 0; i < kNumIterationsTOCTOU; i++) {
    // This test is probabilistic, so we run it multiple times. We allow the compilation to fail
    // because it is not related to the security aspect of the TOCTOU test. However, we need to have
    // enough successful iterations to ensure the test coverage.
    uint32_t numSuccessfulIterations = 0, numFailedIterations = 0;
    while (numSuccessfulIterations < kNumSuccessfulIterationsTOCTOU) {
        // Save the modelAdd compilation to cache.
        {
            hidl_vec<hidl_handle> modelCache, dataCache;
            createCacheHandles(mModelCache, AccessMode::READ_WRITE, &modelCache);
            createCacheHandles(mDataCache, AccessMode::READ_WRITE, &dataCache);
            saveModelToCache(modelAdd, modelCache, dataCache);
            sp<IPreparedModel> preparedModel = nullptr;
            saveModelToCache(modelAdd, modelCache, dataCache, &preparedModel,
                             /*allowGeneralFailure=*/true);

            if (preparedModel == nullptr) {
                numFailedIterations++;
                ASSERT_LE(numFailedIterations, kMaxNumFailedIterationsTOCTOU);
            } else {
                numSuccessfulIterations++;
            }
        }

        // Retrieve preparedModel from cache.
+38 −9
Original line number Diff line number Diff line
@@ -318,7 +318,8 @@ class CompilationCachingTestBase : public testing::Test {

    void saveModelToCache(const Model& model, const hidl_vec<hidl_handle>& modelCache,
                          const hidl_vec<hidl_handle>& dataCache,
                          sp<IPreparedModel>* preparedModel = nullptr) {
                          sp<IPreparedModel>* preparedModel = nullptr,
                          bool allowGeneralFailure = false) {
        if (preparedModel != nullptr) *preparedModel = nullptr;

        // Launch prepare model.
@@ -332,7 +333,10 @@ class CompilationCachingTestBase : public testing::Test {

        // Retrieve prepared model.
        preparedModelCallback->wait();
        ASSERT_EQ(preparedModelCallback->getStatus(), ErrorStatus::NONE);
        const auto prepareCallbackStatus = preparedModelCallback->getStatus();
        if (!allowGeneralFailure || prepareCallbackStatus != ErrorStatus::GENERAL_FAILURE) {
            ASSERT_EQ(prepareCallbackStatus, ErrorStatus::NONE);
        }
        if (preparedModel != nullptr) {
            *preparedModel = IPreparedModel::castFrom(preparedModelCallback->getPreparedModel())
                                     .withDefault(nullptr);
@@ -1013,7 +1017,8 @@ static void copyCacheFiles(const std::vector<std::vector<std::string>>& from,

// Number of operations in the large test model.
constexpr uint32_t kLargeModelSize = 100;
constexpr uint32_t kNumIterationsTOCTOU = 100;
constexpr uint32_t kNumSuccessfulIterationsTOCTOU = 100;
constexpr uint32_t kMaxNumFailedIterationsTOCTOU = 100;

TEST_P(CompilationCachingTest, SaveToCache_TOCTOU) {
    if (!mIsCachingSupported) return;
@@ -1041,18 +1046,30 @@ TEST_P(CompilationCachingTest, SaveToCache_TOCTOU) {
    // Use a different token for modelAdd.
    mToken[0]++;

    // This test is probabilistic, so we run it multiple times.
    for (uint32_t i = 0; i < kNumIterationsTOCTOU; i++) {
    // This test is probabilistic, so we run it multiple times. We allow the compilation to fail
    // because it is not related to the security aspect of the TOCTOU test. However, we need to have
    // enough successful iterations to ensure the test coverage.
    uint32_t numSuccessfulIterations = 0, numFailedIterations = 0;
    while (numSuccessfulIterations < kNumSuccessfulIterationsTOCTOU) {
        // Save the modelAdd compilation to cache.
        {
            hidl_vec<hidl_handle> modelCache, dataCache;
            createCacheHandles(mModelCache, AccessMode::READ_WRITE, &modelCache);
            createCacheHandles(mDataCache, AccessMode::READ_WRITE, &dataCache);

            sp<IPreparedModel> preparedModel = nullptr;
            // Spawn a thread to copy the cache content concurrently while saving to cache.
            std::thread thread(copyCacheFiles, std::cref(modelCacheMul), std::cref(mModelCache));
            saveModelToCache(modelAdd, modelCache, dataCache);
            saveModelToCache(modelAdd, modelCache, dataCache, &preparedModel,
                             /*allowGeneralFailure=*/true);
            thread.join();

            if (preparedModel == nullptr) {
                numFailedIterations++;
                ASSERT_LE(numFailedIterations, kMaxNumFailedIterationsTOCTOU);
            } else {
                numSuccessfulIterations++;
            }
        }

        // Retrieve preparedModel from cache.
@@ -1103,14 +1120,26 @@ TEST_P(CompilationCachingTest, PrepareFromCache_TOCTOU) {
    // Use a different token for modelAdd.
    mToken[0]++;

    // This test is probabilistic, so we run it multiple times.
    for (uint32_t i = 0; i < kNumIterationsTOCTOU; i++) {
    // This test is probabilistic, so we run it multiple times. We allow the compilation to fail
    // because it is not related to the security aspect of the TOCTOU test. However, we need to have
    // enough successful iterations to ensure the test coverage.
    uint32_t numSuccessfulIterations = 0, numFailedIterations = 0;
    while (numSuccessfulIterations < kNumSuccessfulIterationsTOCTOU) {
        // Save the modelAdd compilation to cache.
        {
            hidl_vec<hidl_handle> modelCache, dataCache;
            createCacheHandles(mModelCache, AccessMode::READ_WRITE, &modelCache);
            createCacheHandles(mDataCache, AccessMode::READ_WRITE, &dataCache);
            saveModelToCache(modelAdd, modelCache, dataCache);
            sp<IPreparedModel> preparedModel = nullptr;
            saveModelToCache(modelAdd, modelCache, dataCache, &preparedModel,
                             /*allowGeneralFailure=*/true);

            if (preparedModel == nullptr) {
                numFailedIterations++;
                ASSERT_LE(numFailedIterations, kMaxNumFailedIterationsTOCTOU);
            } else {
                numSuccessfulIterations++;
            }
        }

        // Retrieve preparedModel from cache.