99 lines
3.9 KiB
C
99 lines
3.9 KiB
C
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/*
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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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#define LOG_TAG "FingerprintVirtualHal"
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#include <aidl/android/hardware/biometrics/common/SensorStrength.h>
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#include <aidl/android/hardware/biometrics/fingerprint/ISessionCallback.h>
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#include <android/binder_to_string.h>
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#include <string>
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#include <random>
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#include <aidl/android/hardware/biometrics/fingerprint/SensorLocation.h>
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#include <future>
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#include <vector>
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#include "FakeLockoutTracker.h"
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using namespace ::aidl::android::hardware::biometrics::common;
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namespace aidl::android::hardware::biometrics::fingerprint {
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// A fake engine that is backed by system properties instead of hardware.
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class FakeFingerprintEngine {
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public:
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FakeFingerprintEngine() : mRandom(std::mt19937::default_seed) {}
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virtual ~FakeFingerprintEngine() {}
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void generateChallengeImpl(ISessionCallback* cb);
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void revokeChallengeImpl(ISessionCallback* cb, int64_t challenge);
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virtual void enrollImpl(ISessionCallback* cb, const keymaster::HardwareAuthToken& hat,
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const std::future<void>& cancel);
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virtual void authenticateImpl(ISessionCallback* cb, int64_t operationId,
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const std::future<void>& cancel);
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virtual void detectInteractionImpl(ISessionCallback* cb, const std::future<void>& cancel);
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void enumerateEnrollmentsImpl(ISessionCallback* cb);
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void removeEnrollmentsImpl(ISessionCallback* cb, const std::vector<int32_t>& enrollmentIds);
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void getAuthenticatorIdImpl(ISessionCallback* cb);
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void invalidateAuthenticatorIdImpl(ISessionCallback* cb);
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void resetLockoutImpl(ISessionCallback* cb, const keymaster::HardwareAuthToken& /*hat*/);
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bool getSensorLocationConfig(SensorLocation& out);
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virtual ndk::ScopedAStatus onPointerDownImpl(int32_t pointerId, int32_t x, int32_t y,
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float minor, float major);
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virtual ndk::ScopedAStatus onPointerUpImpl(int32_t pointerId);
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virtual ndk::ScopedAStatus onUiReadyImpl();
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virtual SensorLocation getSensorLocation();
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virtual SensorLocation defaultSensorLocation();
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std::vector<int32_t> parseIntSequence(const std::string& str, const std::string& sep = ",");
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std::vector<std::vector<int32_t>> parseEnrollmentCapture(const std::string& str);
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int32_t getLatency(const std::vector<std::optional<std::int32_t>>& latencyVec);
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std::mt19937 mRandom;
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virtual std::string toString() const {
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std::ostringstream os;
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os << "----- FakeFingerprintEngine:: -----" << std::endl;
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os << "acquiredVendorInfoBase:" << FINGERPRINT_ACQUIRED_VENDOR_BASE;
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os << ", errorVendorBase:" << FINGERPRINT_ERROR_VENDOR_BASE << std::endl;
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os << mLockoutTracker.toString();
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return os.str();
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}
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private:
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static constexpr int32_t FINGERPRINT_ACQUIRED_VENDOR_BASE = 1000;
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static constexpr int32_t FINGERPRINT_ERROR_VENDOR_BASE = 1000;
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std::pair<AcquiredInfo, int32_t> convertAcquiredInfo(int32_t code);
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std::pair<Error, int32_t> convertError(int32_t code);
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bool parseEnrollmentCaptureSingle(const std::string& str,
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std::vector<std::vector<int32_t>>& res);
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int32_t getRandomInRange(int32_t bound1, int32_t bound2);
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FakeLockoutTracker mLockoutTracker;
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};
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} // namespace aidl::android::hardware::biometrics::fingerprint
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