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114 lines
3.9 KiB
114 lines
3.9 KiB
/*
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* Copyright 2020 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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#include "BiometricsFace.h"
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namespace android::hardware::biometrics::face::implementation {
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using android::hardware::biometrics::face::V1_0::FaceError;
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using android::hardware::biometrics::face::V1_0::OptionalUint64;
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// Arbitrary value.
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constexpr uint64_t kDeviceId = 123;
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// Arbitrary value.
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constexpr uint64_t kAuthenticatorId = 987;
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// Not locked out.
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constexpr uint64_t kLockoutDuration = 0;
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BiometricsFace::BiometricsFace() : mRandom(std::mt19937::default_seed) {}
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// Methods from IBiometricsFace follow.
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Return<void> BiometricsFace::setCallback(const sp<IBiometricsFaceClientCallback>& clientCallback,
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setCallback_cb _hidl_cb) {
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mClientCallback = clientCallback;
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_hidl_cb({Status::OK, kDeviceId});
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return Void();
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}
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Return<Status> BiometricsFace::setActiveUser(int32_t userId, const hidl_string& storePath) {
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if (userId < 0 || storePath.empty() || std::string(storePath).find("/data") != 0) {
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return Status::ILLEGAL_ARGUMENT;
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}
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mUserId = userId;
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mClientCallback->onLockoutChanged(kLockoutDuration);
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return Status::OK;
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}
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Return<void> BiometricsFace::generateChallenge(uint32_t /* challengeTimeoutSec */,
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generateChallenge_cb _hidl_cb) {
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std::uniform_int_distribution<uint64_t> dist;
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_hidl_cb({Status::OK, dist(mRandom)});
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return Void();
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}
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Return<Status> BiometricsFace::enroll(const hidl_vec<uint8_t>& /* hat */, uint32_t /* timeoutSec */,
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const hidl_vec<Feature>& /* disabledFeatures */) {
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// hat can never be valid in this implementation.
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mClientCallback->onError(kDeviceId, mUserId, FaceError::UNABLE_TO_PROCESS, 0 /* vendorCode */);
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return Status::OK;
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}
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Return<Status> BiometricsFace::revokeChallenge() {
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return Status::OK;
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}
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Return<Status> BiometricsFace::setFeature(Feature /* feature */, bool /* enabled */,
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const hidl_vec<uint8_t>& /* hat */,
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uint32_t /* faceId */) {
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// hat can never be valid in this implementation.
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return Status::ILLEGAL_ARGUMENT;
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}
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Return<void> BiometricsFace::getFeature(Feature /* feature */, uint32_t /* faceId */,
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getFeature_cb _hidl_cb) {
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// hat can never be valid in this implementation.
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_hidl_cb({Status::ILLEGAL_ARGUMENT, false});
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return Void();
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}
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Return<void> BiometricsFace::getAuthenticatorId(getAuthenticatorId_cb _hidl_cb) {
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_hidl_cb({Status::OK, kAuthenticatorId});
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return Void();
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}
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Return<Status> BiometricsFace::cancel() {
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mClientCallback->onError(kDeviceId, mUserId, FaceError::CANCELED, 0 /* vendorCode */);
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return Status::OK;
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}
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Return<Status> BiometricsFace::enumerate() {
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mClientCallback->onEnumerate(kDeviceId, {}, mUserId);
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return Status::OK;
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}
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Return<Status> BiometricsFace::remove(uint32_t /* faceId */) {
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return Status::OK;
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}
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Return<Status> BiometricsFace::authenticate(uint64_t /* operationId */) {
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mClientCallback->onError(kDeviceId, mUserId, FaceError::HW_UNAVAILABLE, 0 /* vendorCode */);
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return Status::OK;
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}
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Return<Status> BiometricsFace::userActivity() {
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return Status::OK;
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}
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Return<Status> BiometricsFace::resetLockout(const hidl_vec<uint8_t>& /* hat */) {
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return Status::OK;
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}
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} // namespace android::hardware::biometrics::face::implementation
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