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64 lines
1.4 KiB
64 lines
1.4 KiB
10 months ago
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/*
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* Copyright (C) 2024 The LineageOS Project
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "Fingerprint.h"
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#include "LockoutTracker.h"
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#include <util/Util.h>
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namespace aidl {
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namespace android {
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namespace hardware {
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namespace biometrics {
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namespace fingerprint {
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void LockoutTracker::reset(bool clearAttemptCounter) {
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if (clearAttemptCounter)
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mFailedCount = 0;
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mLockoutTimedStart = 0;
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mCurrentMode = LockoutMode::NONE;
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}
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void LockoutTracker::addFailedAttempt() {
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mFailedCount++;
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if (mFailedCount >= LOCKOUT_PERMANENT_THRESHOLD)
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mCurrentMode = LockoutMode::PERMANENT;
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else if (mFailedCount >= LOCKOUT_TIMED_THRESHOLD) {
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mCurrentMode = LockoutMode::TIMED;
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mLockoutTimedStart = Util::getSystemNanoTime();
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}
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}
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LockoutMode LockoutTracker::getMode() {
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if (mCurrentMode == LockoutMode::TIMED) {
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if (Util::hasElapsed(mLockoutTimedStart, LOCKOUT_TIMED_DURATION)) {
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mCurrentMode = LockoutMode::NONE;
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mLockoutTimedStart = 0;
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}
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}
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return mCurrentMode;
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}
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int64_t LockoutTracker::getLockoutTimeLeft() {
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int64_t res = 0;
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if (mLockoutTimedStart > 0) {
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auto now = Util::getSystemNanoTime();
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auto elapsed = (now - mLockoutTimedStart) / 1000000LL;
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res = LOCKOUT_TIMED_DURATION - elapsed;
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}
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return res;
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}
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} // namespace fingerprint
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} // namespace biometrics
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} // namespace hardware
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} // namespace android
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} // namespace aidl
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