Add default implementation for biometrics.face@1.1

Bug: 145027036
Test: vts-tradefed run commandAndExit vts-hal -m VtsHalBiometricsFaceV1_0Target
Test: vts-tradefed run commandAndExit vts-hal -m VtsHalBiometricsFaceV1_1Target
Change-Id: I1aa682644b9b60705a1a8bf40867414b9fc99cd6

6 files changed, 312 insertions, 0 deletions

diff --git a/biometrics/face/1.1/default/Android.bp b/biometrics/face/1.1/default/Android.bp
new file mode 100644
index 0000000000..360071f3dd
--- /dev/null
+++ b/biometrics/face/1.1/default/Android.bp
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2020 The Android Open Source 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.
+ */
+
+cc_binary {
+    name: "android.hardware.biometrics.face@1.1-service.example",
+    defaults: ["hidl_defaults"],
+    vendor: true,
+    init_rc: ["android.hardware.biometrics.face@1.1-service.rc"],
+    vintf_fragments: ["manifest_face_default.xml"],
+    relative_install_path: "hw",
+    proprietary: true,
+    srcs: [
+        "BiometricsFace.cpp",
+        "service.cpp",
+    ],
+    shared_libs: [
+        "libhidlbase",
+        "libutils",
+        "liblog",
+        "android.hardware.biometrics.face@1.0",
+        "android.hardware.biometrics.face@1.1",
+    ],
+}
diff --git a/biometrics/face/1.1/default/BiometricsFace.cpp b/biometrics/face/1.1/default/BiometricsFace.cpp
new file mode 100644
index 0000000000..7bda57fb7f
--- /dev/null
+++ b/biometrics/face/1.1/default/BiometricsFace.cpp
@@ -0,0 +1,121 @@
+/*
+ * Copyright 2020 The Android Open Source 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.
+ */
+
+#include "BiometricsFace.h"
+
+namespace android::hardware::biometrics::face::implementation {
+using android::hardware::biometrics::face::V1_0::FaceError;
+using android::hardware::biometrics::face::V1_0::OptionalUint64;
+
+// Arbitrary value.
+constexpr uint64_t kDeviceId = 123;
+// Arbitrary value.
+constexpr uint64_t kAuthenticatorId = 987;
+// Arbitrary value.
+constexpr uint64_t kLockoutDuration = 555;
+
+BiometricsFace::BiometricsFace() : mRandom(std::mt19937::default_seed) {}
+
+// Methods from IBiometricsFace follow.
+Return<void> BiometricsFace::setCallback(const sp<IBiometricsFaceClientCallback>& clientCallback,
+                                         setCallback_cb _hidl_cb) {
+    mClientCallback = clientCallback;
+    _hidl_cb({Status::OK, kDeviceId});
+    return Void();
+}
+
+Return<Status> BiometricsFace::setActiveUser(int32_t userId, const hidl_string& storePath) {
+    if (userId < 0 || storePath.empty() || std::string(storePath).find("/data") != 0) {
+        return Status::ILLEGAL_ARGUMENT;
+    }
+    mUserId = userId;
+    mClientCallback->onLockoutChanged(kLockoutDuration);
+    return Status::OK;
+}
+
+Return<void> BiometricsFace::generateChallenge(uint32_t /* challengeTimeoutSec */,
+                                               generateChallenge_cb _hidl_cb) {
+    std::uniform_int_distribution<uint64_t> dist;
+    _hidl_cb({Status::OK, dist(mRandom)});
+    return Void();
+}
+
+Return<Status> BiometricsFace::enroll(const hidl_vec<uint8_t>& /* hat */, uint32_t /* timeoutSec */,
+                                      const hidl_vec<Feature>& /* disabledFeatures */) {
+    // hat can never be valid in this implementation.
+    mClientCallback->onError(kDeviceId, mUserId, FaceError::UNABLE_TO_PROCESS, 0 /* vendorCode */);
+    return Status::OK;
+}
+
+Return<Status> BiometricsFace::revokeChallenge() {
+    return Status::OK;
+}
+
+Return<Status> BiometricsFace::setFeature(Feature /* feature */, bool /* enabled */,
+                                          const hidl_vec<uint8_t>& /* hat */,
+                                          uint32_t /* faceId */) {
+    // hat can never be valid in this implementation.
+    return Status::ILLEGAL_ARGUMENT;
+}
+
+Return<void> BiometricsFace::getFeature(Feature /* feature */, uint32_t /* faceId */,
+                                        getFeature_cb _hidl_cb) {
+    // hat can never be valid in this implementation.
+    _hidl_cb({Status::ILLEGAL_ARGUMENT, false});
+    return Void();
+}
+
+Return<void> BiometricsFace::getAuthenticatorId(getAuthenticatorId_cb _hidl_cb) {
+    _hidl_cb({Status::OK, kAuthenticatorId});
+    return Void();
+}
+
+Return<Status> BiometricsFace::cancel() {
+    mClientCallback->onError(kDeviceId, mUserId, FaceError::CANCELED, 0 /* vendorCode */);
+    return Status::OK;
+}
+
+Return<Status> BiometricsFace::enumerate() {
+    mClientCallback->onEnumerate(kDeviceId, {}, mUserId);
+    return Status::OK;
+}
+
+Return<Status> BiometricsFace::remove(uint32_t /* faceId */) {
+    return Status::OK;
+}
+
+Return<Status> BiometricsFace::authenticate(uint64_t /* operationId */) {
+    mClientCallback->onError(kDeviceId, mUserId, FaceError::HW_UNAVAILABLE, 0 /* vendorCode */);
+    return Status::OK;
+}
+
+Return<Status> BiometricsFace::userActivity() {
+    return Status::OK;
+}
+
+Return<Status> BiometricsFace::resetLockout(const hidl_vec<uint8_t>& /* hat */) {
+    return Status::OK;
+}
+
+// Methods from ::android::hardware::biometrics::face::V1_1::IBiometricsFace follow.
+Return<Status> BiometricsFace::enrollRemotely(const hidl_vec<uint8_t>& /* hat */,
+                                              uint32_t /* timeoutSec */,
+                                              const hidl_vec<Feature>& /* disabledFeatures */) {
+    mClientCallback->onError(kDeviceId, mUserId, FaceError::UNABLE_TO_PROCESS, 0 /* vendorCode */);
+    return Status::OK;
+}
+
+}  // namespace android::hardware::biometrics::face::implementation
diff --git a/biometrics/face/1.1/default/BiometricsFace.h b/biometrics/face/1.1/default/BiometricsFace.h
new file mode 100644
index 0000000000..5620b45a43
--- /dev/null
+++ b/biometrics/face/1.1/default/BiometricsFace.h
@@ -0,0 +1,84 @@
+/*
+ * Copyright 2020 The Android Open Source 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.
+ */
+
+#pragma once
+
+#include <android/hardware/biometrics/face/1.1/IBiometricsFace.h>
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+#include <random>
+
+namespace android::hardware::biometrics::face::implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::biometrics::face::V1_0::Feature;
+using ::android::hardware::biometrics::face::V1_0::IBiometricsFaceClientCallback;
+using ::android::hardware::biometrics::face::V1_0::Status;
+
+class BiometricsFace : public V1_1::IBiometricsFace {
+  public:
+    BiometricsFace();
+
+    // Methods from ::android::hardware::biometrics::face::V1_0::IBiometricsFace follow.
+    Return<void> setCallback(const sp<IBiometricsFaceClientCallback>& clientCallback,
+                             setCallback_cb _hidl_cb) override;
+
+    Return<Status> setActiveUser(int32_t userId, const hidl_string& storePath) override;
+
+    Return<void> generateChallenge(uint32_t challengeTimeoutSec,
+                                   generateChallenge_cb _hidl_cb) override;
+
+    Return<Status> enroll(const hidl_vec<uint8_t>& hat, uint32_t timeoutSec,
+                          const hidl_vec<Feature>& disabledFeatures) override;
+
+    Return<Status> revokeChallenge() override;
+
+    Return<Status> setFeature(Feature feature, bool enabled, const hidl_vec<uint8_t>& hat,
+                              uint32_t faceId) override;
+
+    Return<void> getFeature(Feature feature, uint32_t faceId, getFeature_cb _hidl_cb) override;
+
+    Return<void> getAuthenticatorId(getAuthenticatorId_cb _hidl_cb) override;
+
+    Return<Status> cancel() override;
+
+    Return<Status> enumerate() override;
+
+    Return<Status> remove(uint32_t faceId) override;
+
+    Return<Status> authenticate(uint64_t operationId) override;
+
+    Return<Status> userActivity() override;
+
+    Return<Status> resetLockout(const hidl_vec<uint8_t>& hat) override;
+
+    // Methods from ::android::hardware::biometrics::face::V1_1::IBiometricsFace follow.
+    Return<Status> enrollRemotely(const hidl_vec<uint8_t>& hat, uint32_t timeoutSec,
+                                  const hidl_vec<Feature>& disabledFeatures) override;
+
+  private:
+    std::mt19937 mRandom;
+    int32_t mUserId;
+    sp<IBiometricsFaceClientCallback> mClientCallback;
+};
+
+}  // namespace android::hardware::biometrics::face::implementation
diff --git a/biometrics/face/1.1/default/android.hardware.biometrics.face@1.1-service.rc b/biometrics/face/1.1/default/android.hardware.biometrics.face@1.1-service.rc
new file mode 100644
index 0000000000..687e2d8c86
--- /dev/null
+++ b/biometrics/face/1.1/default/android.hardware.biometrics.face@1.1-service.rc
@@ -0,0 +1,10 @@
+service vendor.face-hal-1-1-default /vendor/bin/hw/android.hardware.biometrics.face@1.1-service.example
+    # "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
+    writepid /dev/cpuset/foreground/tasks
+    capabilities SYS_NICE
+    rlimit rtprio 10 10
diff --git a/biometrics/face/1.1/default/manifest_face_default.xml b/biometrics/face/1.1/default/manifest_face_default.xml
new file mode 100644
index 0000000000..ec71d9c92b
--- /dev/null
+++ b/biometrics/face/1.1/default/manifest_face_default.xml
@@ -0,0 +1,11 @@
+<manifest version="2.0" type="device">
+    <hal format="hidl">
+        <name>android.hardware.biometrics.face</name>
+        <transport>hwbinder</transport>
+        <version>1.1</version>
+        <interface>
+            <name>IBiometricsFace</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+</manifest>
diff --git a/biometrics/face/1.1/default/service.cpp b/biometrics/face/1.1/default/service.cpp
new file mode 100644
index 0000000000..344bdb99b4
--- /dev/null
+++ b/biometrics/face/1.1/default/service.cpp
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2020 The Android Open Source 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.face@1.1-service"
+
+#include <android/hardware/biometrics/face/1.0/types.h>
+#include <android/hardware/biometrics/face/1.1/IBiometricsFace.h>
+#include <android/log.h>
+#include <hidl/HidlSupport.h>
+#include <hidl/HidlTransportSupport.h>
+#include "BiometricsFace.h"
+
+using android::sp;
+using android::hardware::configureRpcThreadpool;
+using android::hardware::joinRpcThreadpool;
+using android::hardware::biometrics::face::implementation::BiometricsFace;
+using android::hardware::biometrics::face::V1_1::IBiometricsFace;
+
+int main() {
+    ALOGI("BiometricsFace HAL is being started.");
+
+    configureRpcThreadpool(1, true /*callerWillJoin*/);
+
+    android::sp<IBiometricsFace> face = new BiometricsFace();
+    const android::status_t status = face->registerAsService();
+
+    if (status != android::OK) {
+        ALOGE("Error starting the BiometricsFace HAL.");
+        return 1;
+    }
+
+    ALOGI("BiometricsFace HAL has started successfully.");
+    joinRpcThreadpool();
+
+    ALOGI("BiometricsFace HAL is terminating.");
+    return 1;  // should never get here
+}