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/*
** Copyright 2017, 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.
*/
#pragma once
#include <android/hardware/keymaster/3.0/IKeymasterDevice.h>
#include "Keymaster.h"
namespace android::hardware::keymaster::V4_1::support {
using IKeymaster3Device = ::android::hardware::keymaster::V3_0::IKeymasterDevice;
using ::android::sp;
using ::android::hardware::hidl_string;
using ::android::hardware::hidl_vec;
using ::android::hardware::Return;
using ::android::hardware::Void;
using ::android::hardware::details::return_status;
class Keymaster3 : public Keymaster {
public:
// This definition is used for device enumeration.
using WrappedIKeymasterDevice = IKeymaster3Device;
Keymaster3(sp<IKeymaster3Device> km3_dev, const hidl_string& instanceName)
: Keymaster(IKeymaster3Device::descriptor, instanceName),
km3_dev_(km3_dev),
haveVersion_(false) {}
const VersionResult& halVersion() const override {
const_cast<Keymaster3*>(this)->getVersionIfNeeded();
return version_;
}
Return<void> getHardwareInfo(getHardwareInfo_cb _hidl_cb);
Return<void> getHmacSharingParameters(getHmacSharingParameters_cb _hidl_cb) override {
_hidl_cb(V4_0::ErrorCode::UNIMPLEMENTED, {});
return Void();
}
Return<void> computeSharedHmac(const hidl_vec<HmacSharingParameters>&,
computeSharedHmac_cb _hidl_cb) override {
_hidl_cb(V4_0::ErrorCode::UNIMPLEMENTED, {});
return Void();
}
Return<void> verifyAuthorization(uint64_t, const hidl_vec<KeyParameter>&,
const HardwareAuthToken&,
verifyAuthorization_cb _hidl_cb) override {
_hidl_cb(V4_0::ErrorCode::UNIMPLEMENTED, {});
return Void();
}
Return<V4_0::ErrorCode> addRngEntropy(const hidl_vec<uint8_t>& data) override;
Return<void> generateKey(const hidl_vec<KeyParameter>& keyParams,
generateKey_cb _hidl_cb) override;
Return<void> getKeyCharacteristics(const hidl_vec<uint8_t>& keyBlob,
const hidl_vec<uint8_t>& clientId,
const hidl_vec<uint8_t>& appData,
getKeyCharacteristics_cb _hidl_cb) override;
Return<void> importKey(const hidl_vec<KeyParameter>& params, KeyFormat keyFormat,
const hidl_vec<uint8_t>& keyData, importKey_cb _hidl_cb) override;
Return<void> importWrappedKey(const hidl_vec<uint8_t>& /* wrappedKeyData */,
const hidl_vec<uint8_t>& /* wrappingKeyBlob */,
const hidl_vec<uint8_t>& /* maskingKey */,
const hidl_vec<KeyParameter>& /* unwrappingParams */,
uint64_t /* passwordSid */, uint64_t /* biometricSid */,
importWrappedKey_cb _hidl_cb) {
_hidl_cb(V4_0::ErrorCode::UNIMPLEMENTED, {}, {});
return Void();
}
Return<void> exportKey(KeyFormat exportFormat, const hidl_vec<uint8_t>& keyBlob,
const hidl_vec<uint8_t>& clientId, const hidl_vec<uint8_t>& appData,
exportKey_cb _hidl_cb) override;
Return<void> attestKey(const hidl_vec<uint8_t>& keyToAttest,
const hidl_vec<KeyParameter>& attestParams,
attestKey_cb _hidl_cb) override;
Return<void> upgradeKey(const hidl_vec<uint8_t>& keyBlobToUpgrade,
const hidl_vec<KeyParameter>& upgradeParams,
upgradeKey_cb _hidl_cb) override;
Return<V4_0::ErrorCode> deleteKey(const hidl_vec<uint8_t>& keyBlob) override;
Return<V4_0::ErrorCode> deleteAllKeys() override;
Return<V4_0::ErrorCode> destroyAttestationIds() override;
Return<void> begin(KeyPurpose purpose, const hidl_vec<uint8_t>& key,
const hidl_vec<KeyParameter>& inParams, const HardwareAuthToken& authToken,
begin_cb _hidl_cb) override;
Return<void> update(uint64_t operationHandle, const hidl_vec<KeyParameter>& inParams,
const hidl_vec<uint8_t>& input, const HardwareAuthToken& authToken,
const VerificationToken& verificationToken, update_cb _hidl_cb) override;
Return<void> finish(uint64_t operationHandle, const hidl_vec<KeyParameter>& inParams,
const hidl_vec<uint8_t>& input, const hidl_vec<uint8_t>& signature,
const HardwareAuthToken& authToken,
const VerificationToken& verificationToken, finish_cb _hidl_cb) override;
Return<V4_0::ErrorCode> abort(uint64_t operationHandle) override;
/**********************************
* V4_1::IKeymasterDevice methods *
*********************************/
Return<ErrorCode> deviceLocked(bool /* passwordOnly */,
const VerificationToken& /* verificationToken */) override {
return ErrorCode::UNIMPLEMENTED;
}
Return<ErrorCode> earlyBootEnded() override { return ErrorCode::UNIMPLEMENTED; }
private:
void getVersionIfNeeded();
sp<IKeymaster3Device> km3_dev_;
bool haveVersion_;
VersionResult version_;
bool supportsSymmetricCryptography_;
bool supportsAttestation_;
bool supportsAllDigests_;
};
} // namespace android::hardware::keymaster::V4_1::support
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