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/*
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* Copyright (C) 2019 The LineageOS 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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#define LOG_TAG "vendor.samsung.hardware.biometrics.fingerprint@3.0-service.sm7125"
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#include <android-base/logging.h>
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#include <hardware/hw_auth_token.h>
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#include <hardware/fingerprint.h>
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#include <hardware/hardware.h>
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#include "BiometricsFingerprint.h"
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#include <android-base/properties.h>
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#include <fstream>
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#include <dlfcn.h>
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#include <inttypes.h>
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#include <unistd.h>
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#include <thread>
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#define SEH_FINGER_STATE 22
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#define SEH_PARAM_PRESSED 2
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#define SEH_PARAM_RELEASED 1
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#define SEH_AOSP_FQNAME "android.hardware.biometrics.fingerprint@2.3::IBiometricsFingerprint"
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#define TSP_CMD_PATH "/sys/class/sec/tsp/cmd"
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#define HBM_PATH "/sys/class/lcd/panel/mask_brightness"
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namespace vendor {
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namespace samsung {
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namespace hardware {
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namespace biometrics {
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namespace fingerprint {
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namespace V3_0 {
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namespace implementation {
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using RequestStatus = android::hardware::biometrics::fingerprint::V2_1::RequestStatus;
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ISehBiometricsFingerprint* SehBiometricsFingerprint::sInstance = nullptr;
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template <typename T>
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static void set(const std::string& path, const T& value) {
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std::ofstream file(path);
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file << value;
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}
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std::string getBootloader() {
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return android::base::GetProperty("ro.boot.bootloader", "");
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}
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template <typename T>
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static T get(const std::string& path, const T& def) {
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std::ifstream file(path);
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T result;
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file >> result;
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return file.fail() ? def : result;
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}
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SehBiometricsFingerprint::SehBiometricsFingerprint() : mClientCallback(nullptr) {
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sInstance = this; // keep track of the most recent instance
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if (!openHal()) {
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LOG(ERROR) << "Can't open HAL module";
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}
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if (getBootloader().find("A525") != std::string::npos) {
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set(TSP_CMD_PATH, "set_fod_rect,421,2018,659,2256");
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} else if (getBootloader().find("A725") != std::string::npos) {
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set(TSP_CMD_PATH, "set_fod_rect,426,2031,654,2259");
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} else {
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LOG(ERROR) << "Device is not an A52 or A72, not setting set_fod_rect";
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}
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std::ifstream in("/sys/devices/virtual/fingerprint/fingerprint/position");
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mIsUdfps = !!in;
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if (in)
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in.close();
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set(TSP_CMD_PATH, "fod_enable,1,1,0");
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}
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SehBiometricsFingerprint::~SehBiometricsFingerprint() {
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if (ss_fingerprint_close() != 0) {
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LOG(ERROR) << "Can't close HAL module";
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}
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}
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Return<bool> SehBiometricsFingerprint::isUdfps(uint32_t) {
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return mIsUdfps;
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}
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void SehBiometricsFingerprint::requestResult(int, const hidl_vec<int8_t>&) {
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// Ignore all results
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}
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static hidl_vec<int8_t> stringToVec(const std::string& str) {
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auto vec = hidl_vec<int8_t>();
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vec.resize(str.size() + 1);
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for (size_t i = 0; i < str.size(); ++i) {
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vec[i] = (int8_t) str[i];
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}
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vec[str.size()] = '\0';
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return vec;
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}
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Return<void> SehBiometricsFingerprint::onFingerDown(uint32_t, uint32_t, float, float) {
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std::thread([this]() {
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std::this_thread::sleep_for(std::chrono::milliseconds(35));
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set(HBM_PATH, "331");
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}).detach();
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sehRequest(SEH_FINGER_STATE, SEH_PARAM_PRESSED,
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stringToVec(SEH_AOSP_FQNAME), SehBiometricsFingerprint::requestResult);
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return Void();
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}
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Return<void> SehBiometricsFingerprint::onFingerUp() {
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sehRequest(SEH_FINGER_STATE, SEH_PARAM_RELEASED,
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stringToVec(SEH_AOSP_FQNAME), SehBiometricsFingerprint::requestResult);
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set(HBM_PATH, "0");
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return Void();
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}
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Return<RequestStatus> SehBiometricsFingerprint::ErrorFilter(int32_t error) {
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switch (error) {
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case 0:
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return RequestStatus::SYS_OK;
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case -2:
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return RequestStatus::SYS_ENOENT;
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case -4:
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return RequestStatus::SYS_EINTR;
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case -5:
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return RequestStatus::SYS_EIO;
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case -11:
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return RequestStatus::SYS_EAGAIN;
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case -12:
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return RequestStatus::SYS_ENOMEM;
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case -13:
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return RequestStatus::SYS_EACCES;
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case -14:
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return RequestStatus::SYS_EFAULT;
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case -16:
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return RequestStatus::SYS_EBUSY;
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case -22:
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return RequestStatus::SYS_EINVAL;
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case -28:
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return RequestStatus::SYS_ENOSPC;
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case -110:
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return RequestStatus::SYS_ETIMEDOUT;
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default:
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LOG(ERROR) << "An unknown error returned from fingerprint vendor library: " << error;
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return RequestStatus::SYS_UNKNOWN;
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}
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}
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// Translate from errors returned by traditional HAL (see fingerprint.h) to
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// HIDL-compliant FingerprintError.
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FingerprintError SehBiometricsFingerprint::VendorErrorFilter(int32_t error, int32_t* vendorCode) {
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*vendorCode = 0;
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switch (error) {
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case FINGERPRINT_ERROR_HW_UNAVAILABLE:
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return FingerprintError::ERROR_HW_UNAVAILABLE;
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case FINGERPRINT_ERROR_UNABLE_TO_PROCESS:
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return FingerprintError::ERROR_UNABLE_TO_PROCESS;
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case FINGERPRINT_ERROR_TIMEOUT:
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return FingerprintError::ERROR_TIMEOUT;
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case FINGERPRINT_ERROR_NO_SPACE:
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return FingerprintError::ERROR_NO_SPACE;
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case FINGERPRINT_ERROR_CANCELED:
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return FingerprintError::ERROR_CANCELED;
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case FINGERPRINT_ERROR_UNABLE_TO_REMOVE:
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return FingerprintError::ERROR_UNABLE_TO_REMOVE;
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case FINGERPRINT_ERROR_LOCKOUT:
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return FingerprintError::ERROR_LOCKOUT;
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default:
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if (error >= FINGERPRINT_ERROR_VENDOR_BASE) {
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// vendor specific code.
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*vendorCode = error - FINGERPRINT_ERROR_VENDOR_BASE;
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return FingerprintError::ERROR_VENDOR;
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}
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}
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LOG(ERROR) << "Unknown error from fingerprint vendor library: " << error;
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return FingerprintError::ERROR_UNABLE_TO_PROCESS;
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}
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// Translate acquired messages returned by traditional HAL (see fingerprint.h)
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// to HIDL-compliant FingerprintAcquiredInfo.
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FingerprintAcquiredInfo SehBiometricsFingerprint::VendorAcquiredFilter(int32_t info,
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int32_t* vendorCode) {
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*vendorCode = 0;
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switch (info) {
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case FINGERPRINT_ACQUIRED_GOOD:
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return FingerprintAcquiredInfo::ACQUIRED_GOOD;
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case FINGERPRINT_ACQUIRED_PARTIAL:
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return FingerprintAcquiredInfo::ACQUIRED_PARTIAL;
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case FINGERPRINT_ACQUIRED_INSUFFICIENT:
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return FingerprintAcquiredInfo::ACQUIRED_INSUFFICIENT;
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case FINGERPRINT_ACQUIRED_IMAGER_DIRTY:
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return FingerprintAcquiredInfo::ACQUIRED_IMAGER_DIRTY;
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case FINGERPRINT_ACQUIRED_TOO_SLOW:
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return FingerprintAcquiredInfo::ACQUIRED_TOO_SLOW;
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case FINGERPRINT_ACQUIRED_TOO_FAST:
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return FingerprintAcquiredInfo::ACQUIRED_TOO_FAST;
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default:
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if (info >= FINGERPRINT_ACQUIRED_VENDOR_BASE) {
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// vendor specific code.
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*vendorCode = info - FINGERPRINT_ACQUIRED_VENDOR_BASE;
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return FingerprintAcquiredInfo::ACQUIRED_VENDOR;
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}
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}
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LOG(ERROR) << "Unknown acquiredmsg from fingerprint vendor library: " << info;
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return FingerprintAcquiredInfo::ACQUIRED_INSUFFICIENT;
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}
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Return<uint64_t> SehBiometricsFingerprint::setNotify(
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const sp<IBiometricsFingerprintClientCallback>& clientCallback) {
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std::lock_guard<std::mutex> lock(mClientCallbackMutex);
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mClientCallback = clientCallback;
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// This is here because HAL 2.3 doesn't have a way to propagate a
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// unique token for its driver. Subsequent versions should send a unique
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// token for each call to setNotify(). This is fine as long as there's only
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// one fingerprint device on the platform.
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return reinterpret_cast<uint64_t>(this);
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}
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Return<uint64_t> SehBiometricsFingerprint::preEnroll() {
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return ss_fingerprint_pre_enroll();
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}
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Return<RequestStatus> SehBiometricsFingerprint::enroll(const hidl_array<uint8_t, 69>& hat,
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uint32_t gid, uint32_t timeoutSec) {
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const hw_auth_token_t* authToken = reinterpret_cast<const hw_auth_token_t*>(hat.data());
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return ErrorFilter(ss_fingerprint_enroll(authToken, gid, timeoutSec));
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}
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Return<RequestStatus> SehBiometricsFingerprint::postEnroll() {
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return ErrorFilter(ss_fingerprint_post_enroll());
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}
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Return<uint64_t> SehBiometricsFingerprint::getAuthenticatorId() {
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return ss_fingerprint_get_auth_id();
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}
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Return<RequestStatus> SehBiometricsFingerprint::cancel() {
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return ErrorFilter(ss_fingerprint_cancel());
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}
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Return<RequestStatus> SehBiometricsFingerprint::enumerate() {
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if (ss_fingerprint_enumerate != nullptr) {
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return ErrorFilter(ss_fingerprint_enumerate());
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}
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return RequestStatus::SYS_UNKNOWN;
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}
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Return<RequestStatus> SehBiometricsFingerprint::remove(uint32_t gid, uint32_t fid) {
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return ErrorFilter(ss_fingerprint_remove(gid, fid));
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}
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Return<RequestStatus> SehBiometricsFingerprint::setActiveGroup(uint32_t gid,
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const hidl_string&) {
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std::string storePath = "/data/vendor/biometrics/fp/User_" + std::to_string(gid);
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LOG(ERROR) << "setActiveGroup " << gid << " " << storePath;
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return ErrorFilter(ss_fingerprint_set_active_group(gid, storePath.c_str()));
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}
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Return<RequestStatus> SehBiometricsFingerprint::authenticate(uint64_t operationId, uint32_t gid) {
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return ErrorFilter(ss_fingerprint_authenticate(operationId, gid));
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}
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Return<void> SehBiometricsFingerprint::sehRequest(int32_t cmd_id,
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int32_t inParam, const hidl_vec<int8_t>& inputBuf, sehRequest_cb _hidl_cb) {
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size_t inputSize = 0;
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for (; inputBuf[inputSize] != '\0'; ++inputSize);
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int8_t input[inputSize + 1];
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// HACK: SehBiometrics 3.0 doesn't have the len parameter like the older 2.1 HAL has. Set it to 10 for now
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int8_t output[10];
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for (size_t i = 0; i < inputSize; ++i) {
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input[i] = inputBuf[i];
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}
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input[inputSize] = '\0';
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for (size_t i = 0; i < static_cast<size_t>(10); ++i) {
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output[i] = '\0';
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}
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LOG(ERROR) << "request(cmd_id=" << cmd_id
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<< ", len=" << 10
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<< ", inParam=" << inParam
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<< ", inputBuf=" << input
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<< ")";
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int ret = ss_fingerprint_request(cmd_id, input, 0, 10 == 0 ? nullptr : output, 10, inParam);
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auto outBuf = hidl_vec<int8_t>();
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outBuf.setToExternal(output, 10);
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_hidl_cb(ret, outBuf);
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return Void();
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}
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ISehBiometricsFingerprint* SehBiometricsFingerprint::getInstance() {
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if (!sInstance) {
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sInstance = new SehBiometricsFingerprint();
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}
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return sInstance;
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}
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bool SehBiometricsFingerprint::openHal() {
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void* handle = dlopen("libbauthserver.so", RTLD_NOW);
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if (handle) {
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int err;
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ss_fingerprint_close =
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reinterpret_cast<typeof(ss_fingerprint_close)>(dlsym(handle, "ss_fingerprint_close"));
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ss_fingerprint_open =
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reinterpret_cast<typeof(ss_fingerprint_open)>(dlsym(handle, "ss_fingerprint_open"));
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ss_set_notify_callback = reinterpret_cast<typeof(ss_set_notify_callback)>(
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dlsym(handle, "ss_set_notify_callback"));
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ss_fingerprint_pre_enroll = reinterpret_cast<typeof(ss_fingerprint_pre_enroll)>(
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dlsym(handle, "ss_fingerprint_pre_enroll"));
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ss_fingerprint_enroll =
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reinterpret_cast<typeof(ss_fingerprint_enroll)>(dlsym(handle, "ss_fingerprint_enroll"));
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ss_fingerprint_post_enroll = reinterpret_cast<typeof(ss_fingerprint_post_enroll)>(
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dlsym(handle, "ss_fingerprint_post_enroll"));
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ss_fingerprint_get_auth_id = reinterpret_cast<typeof(ss_fingerprint_get_auth_id)>(
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dlsym(handle, "ss_fingerprint_get_auth_id"));
|
|
|
|
ss_fingerprint_cancel =
|
|
|
|
reinterpret_cast<typeof(ss_fingerprint_cancel)>(dlsym(handle, "ss_fingerprint_cancel"));
|
|
|
|
ss_fingerprint_enumerate = reinterpret_cast<typeof(ss_fingerprint_enumerate)>(
|
|
|
|
dlsym(handle, "ss_fingerprint_enumerate"));
|
|
|
|
ss_fingerprint_remove =
|
|
|
|
reinterpret_cast<typeof(ss_fingerprint_remove)>(dlsym(handle, "ss_fingerprint_remove"));
|
|
|
|
ss_fingerprint_set_active_group = reinterpret_cast<typeof(ss_fingerprint_set_active_group)>(
|
|
|
|
dlsym(handle, "ss_fingerprint_set_active_group"));
|
|
|
|
ss_fingerprint_authenticate = reinterpret_cast<typeof(ss_fingerprint_authenticate)>(
|
|
|
|
dlsym(handle, "ss_fingerprint_authenticate"));
|
|
|
|
ss_fingerprint_request = reinterpret_cast<typeof(ss_fingerprint_request)>(
|
|
|
|
dlsym(handle, "ss_fingerprint_request"));
|
|
|
|
|
|
|
|
if ((err = ss_fingerprint_open(nullptr)) != 0) {
|
|
|
|
LOG(ERROR) << "Can't open fingerprint, error: " << err;
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((err = ss_set_notify_callback(SehBiometricsFingerprint::notify)) != 0) {
|
|
|
|
LOG(ERROR) << "Can't register fingerprint module callback, error: " << err;
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
void SehBiometricsFingerprint::notify(const fingerprint_msg_t* msg) {
|
|
|
|
SehBiometricsFingerprint* thisPtr =
|
|
|
|
static_cast<SehBiometricsFingerprint*>(SehBiometricsFingerprint::getInstance());
|
|
|
|
std::lock_guard<std::mutex> lock(thisPtr->mClientCallbackMutex);
|
|
|
|
if (thisPtr == nullptr || thisPtr->mClientCallback == nullptr) {
|
|
|
|
LOG(ERROR) << "Receiving callbacks before the client callback is registered.";
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
const uint64_t devId = 1;
|
|
|
|
switch (msg->type) {
|
|
|
|
case FINGERPRINT_ERROR: {
|
|
|
|
int32_t vendorCode = 0;
|
|
|
|
FingerprintError result = VendorErrorFilter(msg->data.error, &vendorCode);
|
|
|
|
LOG(DEBUG) << "onError(" << static_cast<int>(result) << ")";
|
|
|
|
if (!thisPtr->mClientCallback->onError(devId, result, vendorCode).isOk()) {
|
|
|
|
LOG(ERROR) << "failed to invoke fingerprint onError callback";
|
|
|
|
}
|
|
|
|
getInstance()->onFingerUp();
|
|
|
|
} break;
|
|
|
|
case FINGERPRINT_ACQUIRED: {
|
|
|
|
int32_t vendorCode = 0;
|
|
|
|
FingerprintAcquiredInfo result =
|
|
|
|
VendorAcquiredFilter(msg->data.acquired.acquired_info, &vendorCode);
|
|
|
|
LOG(DEBUG) << "onAcquired(" << static_cast<int>(result) << ")";
|
|
|
|
if (!thisPtr->mClientCallback->onAcquired(devId, result, vendorCode).isOk()) {
|
|
|
|
LOG(ERROR) << "failed to invoke fingerprint onAcquired callback";
|
|
|
|
}
|
|
|
|
} break;
|
|
|
|
case FINGERPRINT_TEMPLATE_ENROLLING:
|
|
|
|
if(msg->data.enroll.samples_remaining == 0) {
|
|
|
|
set(HBM_PATH, "0");
|
|
|
|
}
|
|
|
|
LOG(DEBUG) << "onEnrollResult(fid=" << msg->data.enroll.finger.fid
|
|
|
|
<< ", gid=" << msg->data.enroll.finger.gid
|
|
|
|
<< ", rem=" << msg->data.enroll.samples_remaining << ")";
|
|
|
|
if (thisPtr->mClientCallback
|
|
|
|
->onEnrollResult(devId, msg->data.enroll.finger.fid,
|
|
|
|
msg->data.enroll.finger.gid, msg->data.enroll.samples_remaining)
|
|
|
|
.isOk()) {
|
|
|
|
fingerprint_msg_t* newMsg = (fingerprint_msg_t*)msg;
|
|
|
|
newMsg->data.enroll.samples_remaining = 100 - msg->data.enroll.samples_remaining;
|
|
|
|
msg = newMsg;
|
|
|
|
} else {
|
|
|
|
LOG(ERROR) << "failed to invoke fingerprint onEnrollResult callback";
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case FINGERPRINT_TEMPLATE_REMOVED:
|
|
|
|
LOG(DEBUG) << "onRemove(fid=" << msg->data.removed.finger.fid
|
|
|
|
<< ", gid=" << msg->data.removed.finger.gid
|
|
|
|
<< ", rem=" << msg->data.removed.remaining_templates << ")";
|
|
|
|
if (!thisPtr->mClientCallback
|
|
|
|
->onRemoved(devId, msg->data.removed.finger.fid, msg->data.removed.finger.gid,
|
|
|
|
msg->data.removed.remaining_templates)
|
|
|
|
.isOk()) {
|
|
|
|
LOG(ERROR) << "failed to invoke fingerprint onRemoved callback";
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case FINGERPRINT_AUTHENTICATED:
|
|
|
|
LOG(DEBUG) << "onAuthenticated(fid=" << msg->data.authenticated.finger.fid
|
|
|
|
<< ", gid=" << msg->data.authenticated.finger.gid << ")";
|
|
|
|
if (msg->data.authenticated.finger.fid != 0) {
|
|
|
|
const uint8_t* hat = reinterpret_cast<const uint8_t*>(&msg->data.authenticated.hat);
|
|
|
|
const hidl_vec<uint8_t> token(
|
|
|
|
std::vector<uint8_t>(hat, hat + sizeof(msg->data.authenticated.hat)));
|
|
|
|
set(HBM_PATH, "0");
|
|
|
|
if (!thisPtr->mClientCallback
|
|
|
|
->onAuthenticated(devId, msg->data.authenticated.finger.fid,
|
|
|
|
msg->data.authenticated.finger.gid, token)
|
|
|
|
.isOk()) {
|
|
|
|
LOG(ERROR) << "failed to invoke fingerprint onAuthenticated callback";
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
// Not a recognized fingerprint
|
|
|
|
if (!thisPtr->mClientCallback
|
|
|
|
->onAuthenticated(devId, msg->data.authenticated.finger.fid,
|
|
|
|
msg->data.authenticated.finger.gid, hidl_vec<uint8_t>())
|
|
|
|
.isOk()) {
|
|
|
|
LOG(ERROR) << "failed to invoke fingerprint onAuthenticated callback";
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case FINGERPRINT_TEMPLATE_ENUMERATING:
|
|
|
|
LOG(DEBUG) << "onEnumerate(fid=" << msg->data.enumerated.finger.fid
|
|
|
|
<< ", gid=" << msg->data.enumerated.finger.gid
|
|
|
|
<< ", rem=" << msg->data.enumerated.remaining_templates << ")";
|
|
|
|
if (!thisPtr->mClientCallback
|
|
|
|
->onEnumerate(devId, msg->data.enumerated.finger.fid,
|
|
|
|
msg->data.enumerated.finger.gid,
|
|
|
|
msg->data.enumerated.remaining_templates)
|
|
|
|
.isOk()) {
|
|
|
|
LOG(ERROR) << "failed to invoke fingerprint onEnumerate callback";
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
} // namespace implementation
|
|
|
|
} // namespace V3_0
|
|
|
|
} // namespace fingerprint
|
|
|
|
} // namespace biometrics
|
|
|
|
} // namespace hardware
|
|
|
|
} // namespace samsung
|
|
|
|
} // namespace vendor
|