Default implementation for IFingerprint

Bug: 152416783
Test: atest VtsHalBiometricsFingerprintTargetTest
Test: atest vts_treble_vintf_vendor_test
Test: atest hal_implementation_test
Change-Id: I67efda2d5418147a7cac9cc54920005a199fcbe3

biometrics/fingerprint/aidl/default/Android.bp

@@ -0,0 +1,17 @@
+cc_binary {
+    name: "android.hardware.biometrics.fingerprint-service.example",
+    relative_install_path: "hw",
+    init_rc: ["fingerprint-default.rc"],
+    vintf_fragments: ["fingerprint-default.xml"],
+    vendor: true,
+    shared_libs: [
+        "libbase",
+        "libbinder_ndk",
+        "android.hardware.biometrics.fingerprint-ndk_platform",
+    ],
+    srcs: [
+        "main.cpp",
+        "Fingerprint.cpp",
+        "Session.cpp",
+    ],
+}

biometrics/fingerprint/aidl/default/Fingerprint.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.
+ */
+
+#include "Fingerprint.h"
+#include "Session.h"
+
+namespace aidl::android::hardware::biometrics::fingerprint {
+
+ndk::ScopedAStatus Fingerprint::getSensorProps(std::vector<SensorProps>* /*return_val*/) {
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Fingerprint::createSession(int32_t /*sensorId*/, int32_t /*userId*/,
+                                              const std::shared_ptr<ISessionCallback>& cb,
+                                              std::shared_ptr<ISession>* return_val) {
+    *return_val = SharedRefBase::make<Session>(cb);
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Fingerprint::setResetLockoutCallback(
+        const std::shared_ptr<IResetLockoutCallback>& /*cb*/) {
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Fingerprint::generateChallenge(
+        int32_t /*sensorId*/, int32_t /*userId*/, int64_t /*keystoreOperationId*/,
+        int32_t /*timeoutSec*/, const std::shared_ptr<IGenerateChallengeCallback>& /*cb*/) {
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Fingerprint::revokeChallenge(
+        int32_t /*sensorId*/, int32_t /*userId*/,
+        const std::shared_ptr<IRevokeChallengeCallback>& /*cb*/) {
+    return ndk::ScopedAStatus::ok();
+}
+
+}  // namespace aidl::android::hardware::biometrics::fingerprint

biometrics/fingerprint/aidl/default/Fingerprint.h

@@ -0,0 +1,43 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#include <aidl/android/hardware/biometrics/fingerprint/BnFingerprint.h>
+
+namespace aidl::android::hardware::biometrics::fingerprint {
+
+class Fingerprint : public BnFingerprint {
+  public:
+    ndk::ScopedAStatus getSensorProps(std::vector<SensorProps>* _aidl_return) override;
+
+    ndk::ScopedAStatus createSession(int32_t sensorId, int32_t userId,
+                                     const std::shared_ptr<ISessionCallback>& cb,
+                                     std::shared_ptr<ISession>* _aidl_return) override;
+
+    ndk::ScopedAStatus setResetLockoutCallback(
+            const std::shared_ptr<IResetLockoutCallback>& cb) override;
+
+    ndk::ScopedAStatus generateChallenge(
+            int32_t sensorId, int32_t userId, int64_t keystoreOperationId, int32_t timeoutSec,
+            const std::shared_ptr<IGenerateChallengeCallback>& cb) override;
+
+    ndk::ScopedAStatus revokeChallenge(
+            int32_t sensorId, int32_t userId,
+            const std::shared_ptr<IRevokeChallengeCallback>& cb) override;
+};
+
+}  // namespace aidl::android::hardware::biometrics::fingerprint

biometrics/fingerprint/aidl/default/Session.cpp

@@ -0,0 +1,80 @@
+/*
+ * 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.
+ */
+
+#include <aidl/android/hardware/biometrics/fingerprint/BnCancellationSignal.h>
+
+#include "Session.h"
+
+namespace aidl::android::hardware::biometrics::fingerprint {
+
+class CancellationSignal : public BnCancellationSignal {
+  public:
+    ndk::ScopedAStatus cancel() override { return ndk::ScopedAStatus::ok(); }
+};
+
+Session::Session(std::shared_ptr<ISessionCallback> cb) : cb_(std::move(cb)) {}
+
+ndk::ScopedAStatus Session::enroll(int32_t /*cookie*/, const keymaster::HardwareAuthToken& /*hat*/,
+                                   std::shared_ptr<ICancellationSignal>* /*return_val*/) {
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Session::authenticate(int32_t /*cookie*/, int64_t /*keystoreOperationId*/,
+                                         std::shared_ptr<ICancellationSignal>* return_val) {
+    if (cb_) {
+        cb_->onStateChanged(0, SessionState::AUTHENTICATING);
+    }
+    *return_val = SharedRefBase::make<CancellationSignal>();
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Session::detectInteraction(
+        int32_t /*cookie*/, std::shared_ptr<ICancellationSignal>* /*return_val*/) {
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Session::enumerateEnrollments(int32_t /*cookie*/) {
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Session::removeEnrollments(int32_t /*cookie*/,
+                                              const std::vector<int32_t>& /*enrollmentIds*/) {
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Session::getAuthenticatorId(int32_t /*cookie*/) {
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Session::resetLockout(int32_t /*cookie*/,
+                                         const keymaster::HardwareAuthToken& /*hat*/) {
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Session::onPointerDown(int32_t /*pointerId*/, int32_t /*x*/, int32_t /*y*/,
+                                          float /*minor*/, float /*major*/) {
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Session::onPointerUp(int32_t /*pointerId*/) {
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Session::onUiReady() {
+    return ndk::ScopedAStatus::ok();
+}
+
+}  // namespace aidl::android::hardware::biometrics::fingerprint

biometrics/fingerprint/aidl/default/Session.h

@@ -0,0 +1,60 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#include <aidl/android/hardware/biometrics/fingerprint/BnSession.h>
+#include <aidl/android/hardware/biometrics/fingerprint/ISessionCallback.h>
+
+namespace aidl::android::hardware::biometrics::fingerprint {
+
+namespace aidl::android::hardware::keymaster = keymaster;
+
+class Session : public BnSession {
+  public:
+    explicit Session(std::shared_ptr<ISessionCallback> cb);
+
+    ndk::ScopedAStatus enroll(int32_t cookie, const keymaster::HardwareAuthToken& hat,
+                              std::shared_ptr<ICancellationSignal>* return_val) override;
+
+    ndk::ScopedAStatus authenticate(int32_t cookie, int64_t keystoreOperationId,
+                                    std::shared_ptr<ICancellationSignal>* return_val) override;
+
+    ndk::ScopedAStatus detectInteraction(int32_t cookie,
+                                         std::shared_ptr<ICancellationSignal>* return_val) override;
+
+    ndk::ScopedAStatus enumerateEnrollments(int32_t cookie) override;
+
+    ndk::ScopedAStatus removeEnrollments(int32_t cookie,
+                                         const std::vector<int32_t>& enrollmentIds) override;
+
+    ndk::ScopedAStatus getAuthenticatorId(int32_t cookie) override;
+
+    ndk::ScopedAStatus resetLockout(int32_t cookie,
+                                    const keymaster::HardwareAuthToken& hat) override;
+
+    ndk::ScopedAStatus onPointerDown(int32_t pointerId, int32_t x, int32_t y, float minor,
+                                     float major) override;
+
+    ndk::ScopedAStatus onPointerUp(int32_t pointerId) override;
+
+    ndk::ScopedAStatus onUiReady() override;
+
+  private:
+    std::shared_ptr<ISessionCallback> cb_;
+};
+
+}  // namespace aidl::android::hardware::biometrics::fingerprint

biometrics/fingerprint/aidl/default/fingerprint-default.rc

@@ -0,0 +1,5 @@
+service vendor.fingerprint-default /vendor/bin/hw/android.hardware.biometrics.fingerprint-service.example
+    class hal
+    user nobody
+    group nobody
+

biometrics/fingerprint/aidl/default/fingerprint-default.xml

@@ -0,0 +1,6 @@
+<manifest version="1.0" type="device">
+    <hal format="aidl">
+        <name>android.hardware.biometrics.fingerprint</name>
+        <fqname>IFingerprint/default</fqname>
+    </hal>
+</manifest>

biometrics/fingerprint/aidl/default/main.cpp

@@ -0,0 +1,35 @@
+/*
+ * 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.
+ */
+
+#include "Fingerprint.h"
+
+#include <android-base/logging.h>
+#include <android/binder_manager.h>
+#include <android/binder_process.h>
+
+using aidl::android::hardware::biometrics::fingerprint::Fingerprint;
+
+int main() {
+    ABinderProcess_setThreadPoolMaxThreadCount(0);
+    std::shared_ptr<Fingerprint> hal = ndk::SharedRefBase::make<Fingerprint>();
+
+    const std::string instance = std::string(Fingerprint::descriptor) + "/default";
+    binder_status_t status = AServiceManager_addService(hal->asBinder().get(), instance.c_str());
+    CHECK(status == STATUS_OK);
+
+    ABinderProcess_joinThreadPool();
+    return EXIT_FAILURE;  // should not reach
+}