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/*
* Copyright (C) 2014 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.
*/
#ifndef TRUSTY_GATEKEEPER_H
#define TRUSTY_GATEKEEPER_H
#include <memory>
#include <aidl/android/hardware/gatekeeper/BnGatekeeper.h>
#include <gatekeeper/gatekeeper_messages.h>
#include "gatekeeper_ipc.h"
namespace aidl::android::hardware::gatekeeper {
using aidl::android::hardware::gatekeeper::GatekeeperEnrollResponse;
using aidl::android::hardware::gatekeeper::GatekeeperVerifyResponse;
using ::gatekeeper::DeleteAllUsersRequest;
using ::gatekeeper::DeleteAllUsersResponse;
using ::gatekeeper::DeleteUserRequest;
using ::gatekeeper::DeleteUserResponse;
using ::gatekeeper::EnrollRequest;
using ::gatekeeper::EnrollResponse;
using ::gatekeeper::gatekeeper_error_t;
using ::gatekeeper::GateKeeperMessage;
using ::gatekeeper::VerifyRequest;
using ::gatekeeper::VerifyResponse;
class TrustyGateKeeperDevice : public BnGatekeeper {
public:
explicit TrustyGateKeeperDevice();
~TrustyGateKeeperDevice();
/**
* Enrolls password_payload, which should be derived from a user selected pin or password,
* with the authentication factor private key used only for enrolling authentication
* factor data.
*
* Returns: 0 on success or an error code less than 0 on error.
* On error, enrolled_password_handle will not be allocated.
*/
::ndk::ScopedAStatus enroll(int32_t uid, const std::vector<uint8_t>& currentPasswordHandle,
const std::vector<uint8_t>& currentPassword,
const std::vector<uint8_t>& desiredPassword,
GatekeeperEnrollResponse* _aidl_return) override;
/**
* Verifies provided_password matches enrolled_password_handle.
*
* Implementations of this module may retain the result of this call
* to attest to the recency of authentication.
*
* On success, writes the address of a verification token to auth_token,
* usable to attest password verification to other trusted services. Clients
* may pass NULL for this value.
*
* Returns: 0 on success or an error code less than 0 on error
* On error, verification token will not be allocated
*/
::ndk::ScopedAStatus verify(int32_t uid, int64_t challenge,
const std::vector<uint8_t>& enrolledPasswordHandle,
const std::vector<uint8_t>& providedPassword,
GatekeeperVerifyResponse* _aidl_return) override;
::ndk::ScopedAStatus deleteAllUsers() override;
::ndk::ScopedAStatus deleteUser(int32_t uid) override;
private:
gatekeeper_error_t Send(uint32_t command, const GateKeeperMessage& request,
GateKeeperMessage* response);
gatekeeper_error_t Send(const EnrollRequest& request, EnrollResponse* response) {
return Send(GK_ENROLL, request, response);
}
gatekeeper_error_t Send(const VerifyRequest& request, VerifyResponse* response) {
return Send(GK_VERIFY, request, response);
}
gatekeeper_error_t Send(const DeleteUserRequest& request, DeleteUserResponse* response) {
return Send(GK_DELETE_USER, request, response);
}
gatekeeper_error_t Send(const DeleteAllUsersRequest& request,
DeleteAllUsersResponse* response) {
return Send(GK_DELETE_ALL_USERS, request, response);
}
int error_;
};
} // namespace aidl::android::hardware::gatekeeper
#endif
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