Camera: Filter camera characteristics
Camera characteristics for camera clients that don't
hold the camera permission must not contain any
metadata that explicitly requires this permission.
Vendor tags must be absent in this case as well.
Bug: 112160024
Test: Manual using application,
adb shell /data/nativetest64/camera_client_test/camera_client_test
--gtest_filter=CameraCharacteristicsPermission.TestCameraPermission
Camera CTS
Change-Id: I4e34c6ef7bd4315327ca78084fa3dcc175fc8098
diff --git a/camera/tests/Android.mk b/camera/tests/Android.mk
index 659484f..e5c1631 100644
--- a/camera/tests/Android.mk
+++ b/camera/tests/Android.mk
@@ -19,7 +19,8 @@
LOCAL_SRC_FILES:= \
VendorTagDescriptorTests.cpp \
CameraBinderTests.cpp \
- CameraZSLTests.cpp
+ CameraZSLTests.cpp \
+ CameraCharacteristicsPermission.cpp
LOCAL_SHARED_LIBRARIES := \
liblog \
diff --git a/camera/tests/CameraCharacteristicsPermission.cpp b/camera/tests/CameraCharacteristicsPermission.cpp
new file mode 100644
index 0000000..135d2a3
--- /dev/null
+++ b/camera/tests/CameraCharacteristicsPermission.cpp
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2018 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_NDEBUG 0
+#define LOG_TAG "CameraCharacteristicsPermission"
+
+#include <gtest/gtest.h>
+
+#include <binder/ProcessState.h>
+#include <utils/Errors.h>
+#include <utils/Log.h>
+#include <camera/CameraMetadata.h>
+#include <camera/Camera.h>
+#include <android/hardware/ICameraService.h>
+
+using namespace android;
+using namespace android::hardware;
+
+class CameraCharacteristicsPermission : public ::testing::Test {
+protected:
+
+ CameraCharacteristicsPermission() : numCameras(0){}
+ //Gtest interface
+ void SetUp() override;
+ void TearDown() override;
+
+ int32_t numCameras;
+ sp<ICameraService> mCameraService;
+};
+
+void CameraCharacteristicsPermission::SetUp() {
+ ::android::binder::Status rc;
+ ProcessState::self()->startThreadPool();
+ sp<IServiceManager> sm = defaultServiceManager();
+ sp<IBinder> binder = sm->getService(String16("media.camera"));
+ mCameraService = interface_cast<ICameraService>(binder);
+ rc = mCameraService->getNumberOfCameras(
+ hardware::ICameraService::CAMERA_TYPE_ALL, &numCameras);
+ EXPECT_TRUE(rc.isOk());
+}
+
+void CameraCharacteristicsPermission::TearDown() {
+ mCameraService.clear();
+}
+
+// Revoking and acquiring permissions automatically might not be possible.
+// Test the functionality for removal of camera characteristics needing
+// a camera permission.
+TEST_F(CameraCharacteristicsPermission, TestCameraPermission) {
+ for (int32_t cameraId = 0; cameraId < numCameras; cameraId++) {
+
+ String16 cameraIdStr = String16(String8::format("%d", cameraId));
+ bool isSupported = false;
+ auto rc = mCameraService->supportsCameraApi(cameraIdStr,
+ hardware::ICameraService::API_VERSION_2, &isSupported);
+ EXPECT_TRUE(rc.isOk());
+ if (!isSupported) {
+ continue;
+ }
+
+ CameraMetadata metadata;
+ std::vector<int32_t> tagsNeedingPermission;
+ rc = mCameraService->getCameraCharacteristics(cameraIdStr, &metadata);
+ ASSERT_TRUE(rc.isOk());
+ EXPECT_FALSE(metadata.isEmpty());
+ EXPECT_EQ(metadata.removePermissionEntries(CAMERA_METADATA_INVALID_VENDOR_ID,
+ &tagsNeedingPermission), NO_ERROR);
+ camera_metadata_entry_t availableCharacteristics =
+ metadata.find(ANDROID_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS);
+ EXPECT_TRUE(0 < availableCharacteristics.count);
+
+ std::vector<uint32_t> availableKeys;
+ availableKeys.reserve(availableCharacteristics.count);
+ availableKeys.insert(availableKeys.begin(), availableCharacteristics.data.i32,
+ availableCharacteristics.data.i32 + availableCharacteristics.count);
+
+ for (const auto &key : tagsNeedingPermission) {
+ ASSERT_FALSE(metadata.exists(key));
+ auto it = std::find(availableKeys.begin(), availableKeys.end(), key);
+ ASSERT_TRUE(it == availableKeys.end());
+ }
+ }
+}