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/*
* 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.
*/
#include <aidl/android/hardware/gatekeeper/IGatekeeper.h>
#include <android/hardware/gatekeeper/1.0/IGatekeeper.h>
#include <android/service/gatekeeper/BnGateKeeperService.h>
#include <gatekeeper/GateKeeperResponse.h>
using ::android::hardware::gatekeeper::V1_0::IGatekeeper;
using AidlIGatekeeper = ::aidl::android::hardware::gatekeeper::IGatekeeper;
using ::android::binder::Status;
using ::android::service::gatekeeper::BnGateKeeperService;
using GKResponse = ::android::service::gatekeeper::GateKeeperResponse;
namespace android {
class GateKeeperProxy : public BnGateKeeperService {
public:
GateKeeperProxy();
virtual ~GateKeeperProxy() {}
void store_sid(uint32_t userId, uint64_t sid);
void clear_state_if_needed();
bool mark_cold_boot();
void maybe_store_sid(uint32_t userId, uint64_t sid);
uint64_t read_sid(uint32_t userId);
void clear_sid(uint32_t userId);
// This should only be called on userIds being passed to the GateKeeper HAL. It ensures that
// secure storage shared across a GSI image and a host image will not overlap.
Status adjust_userId(uint32_t userId, uint32_t* hw_userId);
#define GK_ERROR *gkResponse = GKResponse::error(), Status::ok()
Status enroll(int32_t userId, const std::optional<std::vector<uint8_t>>& currentPasswordHandle,
const std::optional<std::vector<uint8_t>>& currentPassword,
const std::vector<uint8_t>& desiredPassword, GKResponse* gkResponse) override;
Status verify(int32_t userId, const ::std::vector<uint8_t>& enrolledPasswordHandle,
const ::std::vector<uint8_t>& providedPassword, GKResponse* gkResponse) override;
Status verifyChallenge(int32_t userId, int64_t challenge,
const std::vector<uint8_t>& enrolledPasswordHandle,
const std::vector<uint8_t>& providedPassword,
GKResponse* gkResponse) override;
Status getSecureUserId(int32_t userId, int64_t* sid) override;
Status clearSecureUserId(int32_t userId) override;
Status reportDeviceSetupComplete() override;
status_t dump(int fd, const Vector<String16>&) override;
private:
// AIDL gatekeeper service.
std::shared_ptr<AidlIGatekeeper> aidl_hw_device;
// HIDL gatekeeper service.
sp<IGatekeeper> hw_device;
bool clear_state_if_needed_done;
bool is_running_gsi;
};
} // namespace android
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