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samsung: hidl: Add fingerprint 2.1 HAL

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Change-Id: Ibd1b7fe7e1847ec28b2450fbf44cc740e5f364ef
tirimbino
Jan Altensen 5 years ago
parent f267b8f90e
commit 1813ff97bb
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  1. 11
      hidl/fingerprint/.clang-format
  2. 45
      hidl/fingerprint/Android.mk
  3. 361
      hidl/fingerprint/BiometricsFingerprint.cpp
  4. 97
      hidl/fingerprint/BiometricsFingerprint.h
  5. 8
      hidl/fingerprint/android.hardware.biometrics.fingerprint@2.1-service.samsung.rc
  6. 51
      hidl/fingerprint/service.cpp

11
hidl/fingerprint/.clang-format
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BasedOnStyle: Google
AccessModifierOffset: -2
AllowShortFunctionsOnASingleLine: Inline
ColumnLimit: 100
CommentPragmas: NOLINT:.*
DerivePointerAlignment: false
IndentWidth: 4
PointerAlignment: Left
TabWidth: 4
UseTab: Never
PenaltyExcessCharacter: 32

45
hidl/fingerprint/Android.mk
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#
# Copyright (C) 2019 The LineageOS Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_SRC_FILES := \
BiometricsFingerprint.cpp \
service.cpp
LOCAL_SHARED_LIBRARIES := \
libbase \
libhardware \
libhidlbase \
libhidltransport \
liblog \
libutils \
android.hardware.biometrics.fingerprint@2.1
ifeq ($(TARGET_SEC_FP_USES_PERCENTAGE_SAMPLES),true)
LOCAL_CFLAGS += -DUSES_PERCENTAGE_SAMPLES
endif
LOCAL_MODULE := android.hardware.biometrics.fingerprint@2.1-service.samsung
LOCAL_INIT_RC := android.hardware.biometrics.fingerprint@2.1-service.samsung.rc
LOCAL_MODULE_RELATIVE_PATH := hw
LOCAL_MODULE_TAGS := optional
LOCAL_MODULE_OWNER := samsung
LOCAL_VENDOR_MODULE := true
include $(BUILD_EXECUTABLE)

361
hidl/fingerprint/BiometricsFingerprint.cpp
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/*
* Copyright (C) 2019 The LineageOS Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "android.hardware.biometrics.fingerprint@2.1-service.samsung"
#include <android-base/logging.h>
#include <hardware/hw_auth_token.h>
#include <hardware/fingerprint.h>
#include <hardware/hardware.h>
#include "BiometricsFingerprint.h"
#include <dlfcn.h>
#include <inttypes.h>
#include <unistd.h>
namespace android {
namespace hardware {
namespace biometrics {
namespace fingerprint {
namespace V2_1 {
namespace implementation {
using RequestStatus = android::hardware::biometrics::fingerprint::V2_1::RequestStatus;
BiometricsFingerprint* BiometricsFingerprint::sInstance = nullptr;
BiometricsFingerprint::BiometricsFingerprint() : mClientCallback(nullptr) {
sInstance = this; // keep track of the most recent instance
if (!openHal()) {
LOG(ERROR) << "Can't open HAL module";
}
}
BiometricsFingerprint::~BiometricsFingerprint() {
if (ss_fingerprint_close() != 0) {
LOG(ERROR) << "Can't close HAL module";
}
}
Return<RequestStatus> BiometricsFingerprint::ErrorFilter(int32_t error) {
switch (error) {
case 0:
return RequestStatus::SYS_OK;
case -2:
return RequestStatus::SYS_ENOENT;
case -4:
return RequestStatus::SYS_EINTR;
case -5:
return RequestStatus::SYS_EIO;
case -11:
return RequestStatus::SYS_EAGAIN;
case -12:
return RequestStatus::SYS_ENOMEM;
case -13:
return RequestStatus::SYS_EACCES;
case -14:
return RequestStatus::SYS_EFAULT;
case -16:
return RequestStatus::SYS_EBUSY;
case -22:
return RequestStatus::SYS_EINVAL;
case -28:
return RequestStatus::SYS_ENOSPC;
case -110:
return RequestStatus::SYS_ETIMEDOUT;
default:
LOG(ERROR) << "An unknown error returned from fingerprint vendor library: " << error;
return RequestStatus::SYS_UNKNOWN;
}
}
// Translate from errors returned by traditional HAL (see fingerprint.h) to
// HIDL-compliant FingerprintError.
FingerprintError BiometricsFingerprint::VendorErrorFilter(int32_t error, int32_t* vendorCode) {
*vendorCode = 0;
switch (error) {
case FINGERPRINT_ERROR_HW_UNAVAILABLE:
return FingerprintError::ERROR_HW_UNAVAILABLE;
case FINGERPRINT_ERROR_UNABLE_TO_PROCESS:
return FingerprintError::ERROR_UNABLE_TO_PROCESS;
case FINGERPRINT_ERROR_TIMEOUT:
return FingerprintError::ERROR_TIMEOUT;
case FINGERPRINT_ERROR_NO_SPACE:
return FingerprintError::ERROR_NO_SPACE;
case FINGERPRINT_ERROR_CANCELED:
return FingerprintError::ERROR_CANCELED;
case FINGERPRINT_ERROR_UNABLE_TO_REMOVE:
return FingerprintError::ERROR_UNABLE_TO_REMOVE;
case FINGERPRINT_ERROR_LOCKOUT:
return FingerprintError::ERROR_LOCKOUT;
default:
if (error >= FINGERPRINT_ERROR_VENDOR_BASE) {
// vendor specific code.
*vendorCode = error - FINGERPRINT_ERROR_VENDOR_BASE;
return FingerprintError::ERROR_VENDOR;
}
}
LOG(ERROR) << "Unknown error from fingerprint vendor library: " << error;
return FingerprintError::ERROR_UNABLE_TO_PROCESS;
}
// Translate acquired messages returned by traditional HAL (see fingerprint.h)
// to HIDL-compliant FingerprintAcquiredInfo.
FingerprintAcquiredInfo BiometricsFingerprint::VendorAcquiredFilter(int32_t info,
int32_t* vendorCode) {
*vendorCode = 0;
switch (info) {
case FINGERPRINT_ACQUIRED_GOOD:
return FingerprintAcquiredInfo::ACQUIRED_GOOD;
case FINGERPRINT_ACQUIRED_PARTIAL:
return FingerprintAcquiredInfo::ACQUIRED_PARTIAL;
case FINGERPRINT_ACQUIRED_INSUFFICIENT:
return FingerprintAcquiredInfo::ACQUIRED_INSUFFICIENT;
case FINGERPRINT_ACQUIRED_IMAGER_DIRTY:
return FingerprintAcquiredInfo::ACQUIRED_IMAGER_DIRTY;
case FINGERPRINT_ACQUIRED_TOO_SLOW:
return FingerprintAcquiredInfo::ACQUIRED_TOO_SLOW;
case FINGERPRINT_ACQUIRED_TOO_FAST:
return FingerprintAcquiredInfo::ACQUIRED_TOO_FAST;
default:
if (info >= FINGERPRINT_ACQUIRED_VENDOR_BASE) {
// vendor specific code.
*vendorCode = info - FINGERPRINT_ACQUIRED_VENDOR_BASE;
return FingerprintAcquiredInfo::ACQUIRED_VENDOR;
}
}
LOG(ERROR) << "Unknown acquiredmsg from fingerprint vendor library: " << info;
return FingerprintAcquiredInfo::ACQUIRED_INSUFFICIENT;
}
Return<uint64_t> BiometricsFingerprint::setNotify(
const sp<IBiometricsFingerprintClientCallback>& clientCallback) {
std::lock_guard<std::mutex> lock(mClientCallbackMutex);
mClientCallback = clientCallback;
// This is here because HAL 2.1 doesn't have a way to propagate a
// unique token for its driver. Subsequent versions should send a unique
// token for each call to setNotify(). This is fine as long as there's only
// one fingerprint device on the platform.
return reinterpret_cast<uint64_t>(this);
}
Return<uint64_t> BiometricsFingerprint::preEnroll() {
return ss_fingerprint_pre_enroll();
}
Return<RequestStatus> BiometricsFingerprint::enroll(const hidl_array<uint8_t, 69>& hat,
uint32_t gid, uint32_t timeoutSec) {
const hw_auth_token_t* authToken = reinterpret_cast<const hw_auth_token_t*>(hat.data());
return ErrorFilter(ss_fingerprint_enroll(authToken, gid, timeoutSec));
}
Return<RequestStatus> BiometricsFingerprint::postEnroll() {
return ErrorFilter(ss_fingerprint_post_enroll());
}
Return<uint64_t> BiometricsFingerprint::getAuthenticatorId() {
return ss_fingerprint_get_auth_id();
}
Return<RequestStatus> BiometricsFingerprint::cancel() {
return ErrorFilter(ss_fingerprint_cancel());
}
Return<RequestStatus> BiometricsFingerprint::enumerate() {
if (ss_fingerprint_enumerate != nullptr) {
return ErrorFilter(ss_fingerprint_enumerate());
}
return RequestStatus::SYS_UNKNOWN;
}
Return<RequestStatus> BiometricsFingerprint::remove(uint32_t gid, uint32_t fid) {
return ErrorFilter(ss_fingerprint_remove(gid, fid));
}
Return<RequestStatus> BiometricsFingerprint::setActiveGroup(uint32_t gid,
const hidl_string& storePath) {
if (storePath.size() >= PATH_MAX || storePath.size() <= 0) {
LOG(ERROR) << "Bad path length: " << storePath.size();
return RequestStatus::SYS_EINVAL;
}
if (access(storePath.c_str(), W_OK)) {
return RequestStatus::SYS_EINVAL;
}
return ErrorFilter(ss_fingerprint_set_active_group(gid, storePath.c_str()));
}
Return<RequestStatus> BiometricsFingerprint::authenticate(uint64_t operationId, uint32_t gid) {
return ErrorFilter(ss_fingerprint_authenticate(operationId, gid));
}
IBiometricsFingerprint* BiometricsFingerprint::getInstance() {
if (!sInstance) {
sInstance = new BiometricsFingerprint();
}
return sInstance;
}
bool BiometricsFingerprint::openHal() {
void* handle = dlopen("libbauthserver.so", RTLD_NOW);
if (handle) {
int err;
ss_fingerprint_close =
reinterpret_cast<typeof(ss_fingerprint_close)>(dlsym(handle, "ss_fingerprint_close"));
ss_fingerprint_open =
reinterpret_cast<typeof(ss_fingerprint_open)>(dlsym(handle, "ss_fingerprint_open"));
ss_set_notify_callback = reinterpret_cast<typeof(ss_set_notify_callback)>(
dlsym(handle, "ss_set_notify_callback"));
ss_fingerprint_pre_enroll = reinterpret_cast<typeof(ss_fingerprint_pre_enroll)>(
dlsym(handle, "ss_fingerprint_pre_enroll"));
ss_fingerprint_enroll =
reinterpret_cast<typeof(ss_fingerprint_enroll)>(dlsym(handle, "ss_fingerprint_enroll"));
ss_fingerprint_post_enroll = reinterpret_cast<typeof(ss_fingerprint_post_enroll)>(
dlsym(handle, "ss_fingerprint_post_enroll"));
ss_fingerprint_get_auth_id = reinterpret_cast<typeof(ss_fingerprint_get_auth_id)>(
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"));
if ((err = ss_fingerprint_open(nullptr)) != 0) {
LOG(ERROR) << "Can't open fingerprint, error: " << err;
return false;
}
if ((err = ss_set_notify_callback(BiometricsFingerprint::notify)) != 0) {
LOG(ERROR) << "Can't register fingerprint module callback, error: " << err;
return false;
}
return true;
}
return false;
}
void BiometricsFingerprint::notify(const fingerprint_msg_t* msg) {
BiometricsFingerprint* thisPtr =
static_cast<BiometricsFingerprint*>(BiometricsFingerprint::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";
}
} 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:
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()) {
#ifdef USES_PERCENTAGE_SAMPLES
fingerprint_msg_t* newMsg = (fingerprint_msg_t*)msg;
newMsg->data.enroll.samples_remaining = 100 - msg->data.enroll.samples_remaining;
msg = newMsg;
#endif
} 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)));
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 V2_1
} // namespace fingerprint
} // namespace biometrics
} // namespace hardware
} // namespace android

97
hidl/fingerprint/BiometricsFingerprint.h
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/*
* Copyright (C) 2019 The LineageOS Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_HARDWARE_BIOMETRICS_FINGERPRINT_V2_1_BIOMETRICSFINGERPRINT_H
#define ANDROID_HARDWARE_BIOMETRICS_FINGERPRINT_V2_1_BIOMETRICSFINGERPRINT_H
#include <android/hardware/biometrics/fingerprint/2.1/IBiometricsFingerprint.h>
#include <hardware/fingerprint.h>
#include <hardware/hardware.h>
#include <hidl/MQDescriptor.h>
#include <hidl/Status.h>
namespace android {
namespace hardware {
namespace biometrics {
namespace fingerprint {
namespace V2_1 {
namespace implementation {
using ::android::sp;
using ::android::hardware::hidl_string;
using ::android::hardware::hidl_vec;
using ::android::hardware::Return;
using ::android::hardware::Void;
using ::android::hardware::biometrics::fingerprint::V2_1::IBiometricsFingerprint;
using ::android::hardware::biometrics::fingerprint::V2_1::IBiometricsFingerprintClientCallback;
using ::android::hardware::biometrics::fingerprint::V2_1::RequestStatus;
struct BiometricsFingerprint : public IBiometricsFingerprint {
BiometricsFingerprint();
~BiometricsFingerprint();
// Method to wrap legacy HAL with BiometricsFingerprint class
static IBiometricsFingerprint* getInstance();
// Methods from ::android::hardware::biometrics::fingerprint::V2_1::IBiometricsFingerprint follow.
Return<uint64_t> setNotify(
const sp<IBiometricsFingerprintClientCallback>& clientCallback) override;
Return<uint64_t> preEnroll() override;
Return<RequestStatus> enroll(const hidl_array<uint8_t, 69>& hat, uint32_t gid,
uint32_t timeoutSec) override;
Return<RequestStatus> postEnroll() override;
Return<uint64_t> getAuthenticatorId() override;
Return<RequestStatus> cancel() override;
Return<RequestStatus> enumerate() override;
Return<RequestStatus> remove(uint32_t gid, uint32_t fid) override;
Return<RequestStatus> setActiveGroup(uint32_t gid, const hidl_string& storePath) override;
Return<RequestStatus> authenticate(uint64_t operationId, uint32_t gid) override;
private:
bool openHal();
static void notify(
const fingerprint_msg_t* msg); /* Static callback for legacy HAL implementation */
static Return<RequestStatus> ErrorFilter(int32_t error);
static FingerprintError VendorErrorFilter(int32_t error, int32_t* vendorCode);
static FingerprintAcquiredInfo VendorAcquiredFilter(int32_t error, int32_t* vendorCode);
static BiometricsFingerprint* sInstance;
std::mutex mClientCallbackMutex;
sp<IBiometricsFingerprintClientCallback> mClientCallback;
int (*ss_fingerprint_close)();
int (*ss_fingerprint_open)(const char* id);
int (*ss_set_notify_callback)(fingerprint_notify_t notify);
uint64_t (*ss_fingerprint_pre_enroll)();
int (*ss_fingerprint_enroll)(const hw_auth_token_t* hat, uint32_t gid, uint32_t timeout_sec);
int (*ss_fingerprint_post_enroll)();
uint64_t (*ss_fingerprint_get_auth_id)();
int (*ss_fingerprint_cancel)();
int (*ss_fingerprint_enumerate)();
int (*ss_fingerprint_remove)(uint32_t gid, uint32_t fid);
int (*ss_fingerprint_set_active_group)(uint32_t gid, const char* store_path);
int (*ss_fingerprint_authenticate)(uint64_t operation_id, uint32_t gid);
};
} // namespace implementation
} // namespace V2_1
} // namespace fingerprint
} // namespace biometrics
} // namespace hardware
} // namespace android
#endif // ANDROID_HARDWARE_BIOMETRICS_FINGERPRINT_V2_1_BIOMETRICSFINGERPRINT_H

8
hidl/fingerprint/android.hardware.biometrics.fingerprint@2.1-service.samsung.rc
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service vendor.fps_hal /vendor/bin/hw/android.hardware.biometrics.fingerprint@2.1-service.samsung
# "class hal" causes a race condition on some devices due to files created
# in /data. As a workaround, postpone startup until later in boot once
# /data is mounted.
class late_start
user system
group system input
writepid /dev/cpuset/system-background/tasks

51
hidl/fingerprint/service.cpp
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/*
* Copyright (C) 2019 The LineageOS Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "android.hardware.biometrics.fingerprint@2.1-service.samsung"
#include <android-base/logging.h>
#include <hidl/HidlTransportSupport.h>
#include <utils/Errors.h>
#include "BiometricsFingerprint.h"
using android::hardware::configureRpcThreadpool;
using android::hardware::joinRpcThreadpool;
using android::hardware::biometrics::fingerprint::V2_1::IBiometricsFingerprint;
using android::hardware::biometrics::fingerprint::V2_1::implementation::BiometricsFingerprint;
using android::OK;
using android::sp;
int main() {
android::sp<IBiometricsFingerprint> bio = BiometricsFingerprint::getInstance();
configureRpcThreadpool(1, true);
if (bio == nullptr || bio->registerAsService() != OK) {
LOG(ERROR) << "Could not register service for Fingerprint HAL";
goto shutdown;
}
LOG(INFO) << "Fingerprint HAL service is Ready.";
joinRpcThreadpool();
shutdown:
// In normal operation, we don't expect the thread pool to shutdown
LOG(ERROR) << "Fingerprint HAL failed to join thread pool.";
return 1;
}
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