56 lines
2.0 KiB
C++
56 lines
2.0 KiB
C++
/*
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* Copyright 2020, The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "android.hardware.security.secureclock-impl"
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#include <log/log.h>
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#include "AndroidSecureClock.h"
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#include <aidl/android/hardware/security/keymint/ErrorCode.h>
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#include "KeyMintUtils.h"
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#include <keymaster/android_keymaster.h>
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#include <keymaster/keymaster_configuration.h>
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namespace aidl::android::hardware::security::secureclock {
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using keymaster::GenerateTimestampTokenRequest;
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using keymaster::GenerateTimestampTokenResponse;
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using keymint::km_utils::kmBlob2vector;
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using keymint::km_utils::kmError2ScopedAStatus;
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AndroidSecureClock::AndroidSecureClock(
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const std::shared_ptr<keymint::AndroidKeyMintDevice>& keymint)
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: impl_(keymint->getKeymasterImpl()) {}
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AndroidSecureClock::~AndroidSecureClock() {}
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ScopedAStatus AndroidSecureClock::generateTimeStamp(int64_t challenge, TimeStampToken* token) {
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GenerateTimestampTokenRequest request(impl_->message_version());
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request.challenge = challenge;
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GenerateTimestampTokenResponse response(request.message_version);
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impl_->GenerateTimestampToken(request, &response);
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if (response.error != KM_ERROR_OK) {
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return kmError2ScopedAStatus(response.error);
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}
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token->challenge = response.token.challenge;
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token->timestamp.milliSeconds = static_cast<int64_t>(response.token.timestamp);
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token->mac = kmBlob2vector(response.token.mac);
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return ScopedAStatus::ok();
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}
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} // namespace aidl::android::hardware::security::secureclock
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