Merge "Test for bootloader state" am: eb94a4f9 am: e1c1abb0 am: cd06c174

    srcs: [

        "AttestKeyTest.cpp",

        "AuthTest.cpp",

        "BootloaderStateTest.cpp",

        "DeviceUniqueAttestationTest.cpp",

        "KeyBlobUpgradeTest.cpp",

        "KeyMintTest.cpp",

/*

 * Copyright (C) 2023 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.

 */

#define LOG_TAG "keymint_1_bootloader_test"

#include <memory>

#include <optional>

#include <string>

#include <vector>

#include <android/binder_manager.h>

#include <remote_prov/remote_prov_utils.h>

#include "KeyMintAidlTestBase.h"

namespace aidl::android::hardware::security::keymint::test {

using ::android::getAidlHalInstanceNames;

using ::std::string;

using ::std::vector;

// Since this test needs to talk to KeyMint HAL, it can only run as root. Thus,

// bootloader can not be locked.

class BootloaderStateTest : public testing::TestWithParam<std::string> {

  public:

    virtual void SetUp() override {

        ::ndk::SpAIBinder binder(AServiceManager_waitForService(GetParam().c_str()));

        keyMint_ = IKeyMintDevice::fromBinder(binder);

        ASSERT_TRUE(keyMint_) << "Failed to get KM device";

    }

    std::shared_ptr<IKeyMintDevice> keyMint_;

};

// Check that attested bootloader state is set to unlocked.

TEST_P(BootloaderStateTest, IsUnlocked) {

    // Generate a key with attestation.

    AuthorizationSet keyDesc = AuthorizationSetBuilder()

                                       .Authorization(TAG_NO_AUTH_REQUIRED)

                                       .EcdsaSigningKey(EcCurve::P_256)

                                       .AttestationChallenge("foo")

                                       .AttestationApplicationId("bar")

                                       .Digest(Digest::NONE)

                                       .SetDefaultValidity();

    KeyCreationResult creationResult;

    auto kmStatus = keyMint_->generateKey(keyDesc.vector_data(), std::nullopt, &creationResult);

    ASSERT_TRUE(kmStatus.isOk());

    vector<Certificate> key_cert_chain = std::move(creationResult.certificateChain);

    // Parse attested AVB values.

    const auto& attestation_cert = key_cert_chain[0].encodedCertificate;

    X509_Ptr cert(parse_cert_blob(attestation_cert));

    ASSERT_TRUE(cert.get());

    ASN1_OCTET_STRING* attest_rec = get_attestation_record(cert.get());

    ASSERT_TRUE(attest_rec);

    vector<uint8_t> key;

    VerifiedBoot attestedVbState;

    bool attestedBootloaderState;

    vector<uint8_t> attestedVbmetaDigest;

    auto error = parse_root_of_trust(attest_rec->data, attest_rec->length, &key, &attestedVbState,

                                     &attestedBootloaderState, &attestedVbmetaDigest);

    ASSERT_EQ(error, ErrorCode::OK);

    ASSERT_FALSE(attestedBootloaderState) << "This test runs as root. Bootloader must be unlocked.";

}

INSTANTIATE_TEST_SUITE_P(PerInstance, BootloaderStateTest,

                         testing::ValuesIn(getAidlHalInstanceNames(IKeyMintDevice::descriptor)),

                         ::android::PrintInstanceNameToString);

}  // namespace aidl::android::hardware::security::keymint::test