Merge "libdm: Redact keys from dm-crypt targets when calling GetTable." into tm-dev

    // Empty device should be in suspended state.

    ASSERT_EQ(DmDeviceState::SUSPENDED, dm.GetState("empty-device"));

}

TEST(libdm, RedactDmCrypt) {

    static constexpr uint64_t kImageSize = 65536;

    static constexpr const char* kTestName = "RedactDmCrypt";

    unique_fd temp_file(CreateTempFile("file_1", kImageSize));

    ASSERT_GE(temp_file, 0);

    LoopDevice loop(temp_file, 10s);

    ASSERT_TRUE(loop.valid());

    static constexpr const char* kAlgorithm = "aes-cbc-essiv:sha256";

    static constexpr const char* kKey = "0e64ef514e6a1315b1f6390cb57c9e6a";

    auto target = std::make_unique<DmTargetCrypt>(0, kImageSize / 512, kAlgorithm, kKey, 0,

                                                  loop.device(), 0);

    target->AllowDiscards();

    DmTable table;

    table.AddTarget(std::move(target));

    auto& dm = DeviceMapper::Instance();

    std::string crypt_path;

    ASSERT_TRUE(dm.CreateDevice(kTestName, table, &crypt_path, 10s));

    std::vector<DeviceMapper::TargetInfo> targets;

    ASSERT_TRUE(dm.GetTableInfo(kTestName, &targets));

    ASSERT_EQ(targets.size(), 1);

    EXPECT_EQ(targets[0].data.find(kKey), std::string::npos);

}