75 lines
2.2 KiB
C++
75 lines
2.2 KiB
C++
/*
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* Copyright (C) 2022 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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#pragma once
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#include <cstdint>
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#include <chrono>
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#include <unordered_set>
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#include <vector>
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namespace aidl::android::hardware::biometrics::fingerprint {
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struct Storage {
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enum class AuthResult {
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OK,
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FAILED,
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LOCKED_OUT_TIMED,
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LOCKED_OUT_PERMANENT,
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};
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struct AuthToken {
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int64_t userId = 0;
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int64_t authenticatorId = 0;
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};
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Storage(int32_t sensorId, int32_t userId);
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static constexpr int getMaxEnrollmentsPerUser() { return kMaxEnrollmentsPerUser; }
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int64_t getAuthenticatorId() const { return mAuthId; }
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int64_t invalidateAuthenticatorId(int64_t newAuthId);
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std::vector<int32_t> enumerateEnrollments() const;
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bool enroll(int enrollmentId, int64_t secureUserId, int64_t newAuthId);
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void removeEnrollments(const std::vector<int32_t>& enrollmentIds);
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std::tuple<AuthResult, int32_t, AuthToken> authenticate(int32_t enrollmentId);
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void resetLockout();
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bool checkIfLockoutCleared();
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std::vector<uint8_t> serialize() const;
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void save() const;
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static constexpr int kMaxEnrollmentsPerUser = 5;
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struct LockOut {
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enum class State {
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NO, TIMED, TIMED_LOCKED, PERMANENT
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};
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std::chrono::steady_clock::time_point nextAttempt;
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std::chrono::steady_clock::time_point expiration;
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int failedAttempts = 0;
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State state = State::NO;
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};
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const int32_t mSensorId;
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const int32_t mUserId;
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int64_t mAuthId = 0;
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int64_t mSecureUserId = 0;
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std::unordered_set<int32_t> mEnrollments;
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LockOut mLockOut;
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};
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} // namespace aidl::android::hardware::biometrics::fingerprint
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