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/*
*
* Copyright 2020, 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 "android.hardware.keymint@1.0-impl"
#include <log/log.h>
#include "include/AndroidKeyMint1Operation.h"
#include "KeyMintAidlUtils.h"
#include <aidl/android/hardware/keymint/ErrorCode.h>
#include <keymaster/android_keymaster.h>
namespace aidl {
namespace android {
namespace hardware {
namespace keymint {
namespace V1_0 {
using ::aidl::android::hardware::keymint::ErrorCode;
using ::keymaster::AbortOperationRequest;
using ::keymaster::AbortOperationResponse;
using ::keymaster::FinishOperationRequest;
using ::keymaster::FinishOperationResponse;
using ::keymaster::UpdateOperationRequest;
using ::keymaster::UpdateOperationResponse;
AndroidKeyMint1Operation::AndroidKeyMint1Operation(
const shared_ptr<::keymaster::AndroidKeymaster> implementation,
keymaster_operation_handle_t opHandle)
: impl_(std::move(implementation)), opHandle_(opHandle) {}
AndroidKeyMint1Operation::~AndroidKeyMint1Operation() {
if (opHandle_ != 0) {
abort();
}
}
ScopedAStatus AndroidKeyMint1Operation::update(const optional<KeyParameterArray>& params,
const optional<vector<uint8_t>>& input,
const optional<HardwareAuthToken>& /* authToken */,
const optional<VerificationToken>&
/* verificationToken */,
optional<KeyParameterArray>* updatedParams,
optional<ByteArray>* output,
int32_t* inputConsumed) {
if (!updatedParams || !output || !inputConsumed) {
return kmError2ScopedAStatus(KM_ERROR_OUTPUT_PARAMETER_NULL);
}
UpdateOperationRequest request;
request.op_handle = opHandle_;
if (input) {
request.input.Reinitialize(input->data(), input->size());
}
if (params) {
request.additional_params.Reinitialize(KmParamSet(params->params));
}
UpdateOperationResponse response;
impl_->UpdateOperation(request, &response);
*inputConsumed = 0;
if (response.error == KM_ERROR_OK) {
*inputConsumed = response.input_consumed;
updatedParams->emplace();
(*updatedParams)->params = kmParamSet2Aidl(response.output_params);
output->emplace();
(*output)->data = kmBuffer2vector(response.output);
return ScopedAStatus::ok();
}
opHandle_ = 0;
return kmError2ScopedAStatus(response.error);
}
ScopedAStatus AndroidKeyMint1Operation::finish(const optional<KeyParameterArray>& params,
const optional<vector<uint8_t>>& input,
const optional<vector<uint8_t>>& signature,
const optional<HardwareAuthToken>& /* authToken */,
const optional<VerificationToken>&
/* verificationToken */,
optional<KeyParameterArray>* updatedParams,
vector<uint8_t>* output) {
if (!updatedParams || !output) {
return ScopedAStatus(AStatus_fromServiceSpecificError(
static_cast<int32_t>(ErrorCode::OUTPUT_PARAMETER_NULL)));
}
FinishOperationRequest request;
request.op_handle = opHandle_;
if (input) {
request.input.Reinitialize(input->data(), input->size());
}
if (signature) {
request.signature.Reinitialize(signature->data(), signature->size());
}
if (params) {
request.additional_params.Reinitialize(KmParamSet(params->params));
}
FinishOperationResponse response;
impl_->FinishOperation(request, &response);
opHandle_ = 0;
if (response.error == KM_ERROR_OK) {
updatedParams->emplace();
(*updatedParams)->params = kmParamSet2Aidl(response.output_params);
*output = kmBuffer2vector(response.output);
return ScopedAStatus::ok();
}
return kmError2ScopedAStatus(response.error);
}
ScopedAStatus AndroidKeyMint1Operation::abort() {
AbortOperationRequest request;
request.op_handle = opHandle_;
AbortOperationResponse response;
impl_->AbortOperation(request, &response);
opHandle_ = 0;
return kmError2ScopedAStatus(response.error);
}
} // namespace V1_0
} // namespace keymint
} // namespace hardware
} // namespace android
} // namespace aidl
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