2780 lines
101 KiB
C++
2780 lines
101 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source 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 "CameraService"
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#define ATRACE_TAG ATRACE_TAG_CAMERA
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//#define LOG_NDEBUG 0
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#include <algorithm>
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#include <climits>
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#include <stdio.h>
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#include <cstring>
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#include <ctime>
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#include <string>
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#include <sys/types.h>
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#include <inttypes.h>
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#include <pthread.h>
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#include <android/hardware/ICamera.h>
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#include <android/hardware/ICameraClient.h>
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#include <android-base/macros.h>
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#include <android-base/parseint.h>
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#include <binder/AppOpsManager.h>
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#include <binder/IPCThreadState.h>
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#include <binder/IServiceManager.h>
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#include <binder/MemoryBase.h>
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#include <binder/MemoryHeapBase.h>
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#include <binder/ProcessInfoService.h>
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#include <cutils/atomic.h>
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#include <cutils/properties.h>
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#include <gui/Surface.h>
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#include <hardware/hardware.h>
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#include <memunreachable/memunreachable.h>
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#include <media/AudioSystem.h>
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#include <media/IMediaHTTPService.h>
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#include <media/mediaplayer.h>
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#include <mediautils/BatteryNotifier.h>
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#include <utils/Errors.h>
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#include <utils/Log.h>
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#include <utils/String16.h>
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#include <utils/Trace.h>
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#include <private/android_filesystem_config.h>
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#include <system/camera_vendor_tags.h>
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#include <system/camera_metadata.h>
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#include <system/camera.h>
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#include "CameraService.h"
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#include "api1/CameraClient.h"
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#include "api1/Camera2Client.h"
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#include "api2/CameraDeviceClient.h"
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#include "utils/CameraTraces.h"
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namespace {
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const char* kPermissionServiceName = "permission";
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}; // namespace anonymous
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namespace android {
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using binder::Status;
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using hardware::ICamera;
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using hardware::ICameraClient;
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using hardware::ICameraServiceProxy;
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using hardware::ICameraServiceListener;
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using hardware::camera::common::V1_0::CameraDeviceStatus;
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using hardware::camera::common::V1_0::TorchModeStatus;
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// ----------------------------------------------------------------------------
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// Logging support -- this is for debugging only
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// Use "adb shell dumpsys media.camera -v 1" to change it.
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volatile int32_t gLogLevel = 0;
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#define LOG1(...) ALOGD_IF(gLogLevel >= 1, __VA_ARGS__);
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#define LOG2(...) ALOGD_IF(gLogLevel >= 2, __VA_ARGS__);
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static void setLogLevel(int level) {
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android_atomic_write(level, &gLogLevel);
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}
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// Convenience methods for constructing binder::Status objects for error returns
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#define STATUS_ERROR(errorCode, errorString) \
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binder::Status::fromServiceSpecificError(errorCode, \
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String8::format("%s:%d: %s", __FUNCTION__, __LINE__, errorString))
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#define STATUS_ERROR_FMT(errorCode, errorString, ...) \
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binder::Status::fromServiceSpecificError(errorCode, \
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String8::format("%s:%d: " errorString, __FUNCTION__, __LINE__, \
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__VA_ARGS__))
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// ----------------------------------------------------------------------------
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extern "C" {
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static void camera_device_status_change(
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const struct camera_module_callbacks* callbacks,
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int camera_id,
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int new_status) {
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sp<CameraService> cs = const_cast<CameraService*>(
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static_cast<const CameraService*>(callbacks));
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String8 id = String8::format("%d", camera_id);
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CameraDeviceStatus newStatus{CameraDeviceStatus::NOT_PRESENT};
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switch (new_status) {
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case CAMERA_DEVICE_STATUS_NOT_PRESENT:
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newStatus = CameraDeviceStatus::NOT_PRESENT;
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break;
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case CAMERA_DEVICE_STATUS_PRESENT:
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newStatus = CameraDeviceStatus::PRESENT;
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break;
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case CAMERA_DEVICE_STATUS_ENUMERATING:
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newStatus = CameraDeviceStatus::ENUMERATING;
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break;
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default:
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ALOGW("Unknown device status change to %d", new_status);
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break;
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}
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cs->onDeviceStatusChanged(id, newStatus);
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}
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static void torch_mode_status_change(
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const struct camera_module_callbacks* callbacks,
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const char* camera_id,
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int new_status) {
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if (!callbacks || !camera_id) {
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ALOGE("%s invalid parameters. callbacks %p, camera_id %p", __FUNCTION__,
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callbacks, camera_id);
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}
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sp<CameraService> cs = const_cast<CameraService*>(
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static_cast<const CameraService*>(callbacks));
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TorchModeStatus status;
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switch (new_status) {
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case TORCH_MODE_STATUS_NOT_AVAILABLE:
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status = TorchModeStatus::NOT_AVAILABLE;
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break;
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case TORCH_MODE_STATUS_AVAILABLE_OFF:
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status = TorchModeStatus::AVAILABLE_OFF;
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break;
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case TORCH_MODE_STATUS_AVAILABLE_ON:
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status = TorchModeStatus::AVAILABLE_ON;
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break;
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default:
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ALOGE("Unknown torch status %d", new_status);
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return;
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}
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cs->onTorchStatusChanged(
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String8(camera_id),
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status);
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}
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} // extern "C"
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// ----------------------------------------------------------------------------
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CameraService::CameraService() :
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mEventLog(DEFAULT_EVENT_LOG_LENGTH),
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mNumberOfCameras(0), mNumberOfNormalCameras(0),
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mSoundRef(0), mInitialized(false) {
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ALOGI("CameraService started (pid=%d)", getpid());
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this->camera_device_status_change = android::camera_device_status_change;
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this->torch_mode_status_change = android::torch_mode_status_change;
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mServiceLockWrapper = std::make_shared<WaitableMutexWrapper>(&mServiceLock);
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}
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void CameraService::onFirstRef()
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{
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ALOGI("CameraService process starting");
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BnCameraService::onFirstRef();
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// Update battery life tracking if service is restarting
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BatteryNotifier& notifier(BatteryNotifier::getInstance());
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notifier.noteResetCamera();
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notifier.noteResetFlashlight();
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status_t res = INVALID_OPERATION;
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res = enumerateProviders();
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if (res == OK) {
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mInitialized = true;
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}
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CameraService::pingCameraServiceProxy();
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}
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status_t CameraService::enumerateProviders() {
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status_t res;
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Mutex::Autolock l(mServiceLock);
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if (nullptr == mCameraProviderManager.get()) {
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mCameraProviderManager = new CameraProviderManager();
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res = mCameraProviderManager->initialize(this);
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if (res != OK) {
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ALOGE("%s: Unable to initialize camera provider manager: %s (%d)",
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__FUNCTION__, strerror(-res), res);
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return res;
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}
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}
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mNumberOfCameras = mCameraProviderManager->getCameraCount();
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mNumberOfNormalCameras =
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mCameraProviderManager->getAPI1CompatibleCameraCount();
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// Setup vendor tags before we call get_camera_info the first time
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// because HAL might need to setup static vendor keys in get_camera_info
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// TODO: maybe put this into CameraProviderManager::initialize()?
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mCameraProviderManager->setUpVendorTags();
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if (nullptr == mFlashlight.get()) {
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mFlashlight = new CameraFlashlight(mCameraProviderManager, this);
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}
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res = mFlashlight->findFlashUnits();
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if (res != OK) {
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ALOGE("Failed to enumerate flash units: %s (%d)", strerror(-res), res);
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}
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for (auto& cameraId : mCameraProviderManager->getCameraDeviceIds()) {
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String8 id8 = String8(cameraId.c_str());
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bool cameraFound = false;
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{
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Mutex::Autolock lock(mCameraStatesLock);
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auto iter = mCameraStates.find(id8);
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if (iter != mCameraStates.end()) {
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cameraFound = true;
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}
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}
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if (!cameraFound) {
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hardware::camera::common::V1_0::CameraResourceCost cost;
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res = mCameraProviderManager->getResourceCost(cameraId, &cost);
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if (res != OK) {
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ALOGE("Failed to query device resource cost: %s (%d)", strerror(-res), res);
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continue;
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}
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std::set<String8> conflicting;
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for (size_t i = 0; i < cost.conflictingDevices.size(); i++) {
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conflicting.emplace(String8(cost.conflictingDevices[i].c_str()));
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}
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{
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Mutex::Autolock lock(mCameraStatesLock);
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mCameraStates.emplace(id8,
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std::make_shared<CameraState>(id8, cost.resourceCost, conflicting));
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}
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}
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onDeviceStatusChanged(id8, CameraDeviceStatus::PRESENT);
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if (mFlashlight->hasFlashUnit(id8)) {
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mTorchStatusMap.add(id8, TorchModeStatus::AVAILABLE_OFF);
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}
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}
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return OK;
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}
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sp<ICameraServiceProxy> CameraService::getCameraServiceProxy() {
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sp<ICameraServiceProxy> proxyBinder = nullptr;
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#ifndef __BRILLO__
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sp<IServiceManager> sm = defaultServiceManager();
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// Use checkService because cameraserver normally starts before the
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// system server and the proxy service. So the long timeout that getService
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// has before giving up is inappropriate.
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sp<IBinder> binder = sm->checkService(String16("media.camera.proxy"));
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if (binder != nullptr) {
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proxyBinder = interface_cast<ICameraServiceProxy>(binder);
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}
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#endif
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return proxyBinder;
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}
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void CameraService::pingCameraServiceProxy() {
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sp<ICameraServiceProxy> proxyBinder = getCameraServiceProxy();
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if (proxyBinder == nullptr) return;
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proxyBinder->pingForUserUpdate();
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}
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CameraService::~CameraService() {
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VendorTagDescriptor::clearGlobalVendorTagDescriptor();
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}
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void CameraService::onNewProviderRegistered() {
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enumerateProviders();
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}
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void CameraService::onDeviceStatusChanged(const String8& id,
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CameraDeviceStatus newHalStatus) {
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ALOGI("%s: Status changed for cameraId=%s, newStatus=%d", __FUNCTION__,
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id.string(), newHalStatus);
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StatusInternal newStatus = mapToInternal(newHalStatus);
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std::shared_ptr<CameraState> state = getCameraState(id);
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if (state == nullptr) {
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if (newStatus == StatusInternal::PRESENT) {
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ALOGW("%s: Unknown camera ID %s, probably newly registered?",
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__FUNCTION__, id.string());
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} else {
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ALOGE("%s: Bad camera ID %s", __FUNCTION__, id.string());
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}
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return;
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}
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StatusInternal oldStatus = state->getStatus();
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if (oldStatus == newStatus) {
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ALOGE("%s: State transition to the same status %#x not allowed", __FUNCTION__, newStatus);
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return;
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}
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if (newStatus == StatusInternal::NOT_PRESENT) {
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logDeviceRemoved(id, String8::format("Device status changed from %d to %d", oldStatus,
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newStatus));
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sp<BasicClient> clientToDisconnect;
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{
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// Don't do this in updateStatus to avoid deadlock over mServiceLock
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Mutex::Autolock lock(mServiceLock);
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// Set the device status to NOT_PRESENT, clients will no longer be able to connect
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// to this device until the status changes
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updateStatus(StatusInternal::NOT_PRESENT, id);
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// Remove cached shim parameters
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state->setShimParams(CameraParameters());
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// Remove the client from the list of active clients, if there is one
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clientToDisconnect = removeClientLocked(id);
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}
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// Disconnect client
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if (clientToDisconnect.get() != nullptr) {
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ALOGI("%s: Client for camera ID %s evicted due to device status change from HAL",
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__FUNCTION__, id.string());
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// Notify the client of disconnection
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clientToDisconnect->notifyError(
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hardware::camera2::ICameraDeviceCallbacks::ERROR_CAMERA_DISCONNECTED,
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CaptureResultExtras{});
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// Ensure not in binder RPC so client disconnect PID checks work correctly
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LOG_ALWAYS_FATAL_IF(getCallingPid() != getpid(),
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"onDeviceStatusChanged must be called from the camera service process!");
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clientToDisconnect->disconnect();
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}
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} else {
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if (oldStatus == StatusInternal::NOT_PRESENT) {
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logDeviceAdded(id, String8::format("Device status changed from %d to %d", oldStatus,
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newStatus));
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}
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updateStatus(newStatus, id);
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}
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}
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void CameraService::onTorchStatusChanged(const String8& cameraId,
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TorchModeStatus newStatus) {
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Mutex::Autolock al(mTorchStatusMutex);
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onTorchStatusChangedLocked(cameraId, newStatus);
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}
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void CameraService::onTorchStatusChangedLocked(const String8& cameraId,
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TorchModeStatus newStatus) {
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ALOGI("%s: Torch status changed for cameraId=%s, newStatus=%d",
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__FUNCTION__, cameraId.string(), newStatus);
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TorchModeStatus status;
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status_t res = getTorchStatusLocked(cameraId, &status);
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if (res) {
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ALOGE("%s: cannot get torch status of camera %s: %s (%d)",
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__FUNCTION__, cameraId.string(), strerror(-res), res);
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return;
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}
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if (status == newStatus) {
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return;
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}
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res = setTorchStatusLocked(cameraId, newStatus);
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if (res) {
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ALOGE("%s: Failed to set the torch status to %d: %s (%d)", __FUNCTION__,
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(uint32_t)newStatus, strerror(-res), res);
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return;
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}
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{
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// Update battery life logging for flashlight
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Mutex::Autolock al(mTorchUidMapMutex);
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auto iter = mTorchUidMap.find(cameraId);
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if (iter != mTorchUidMap.end()) {
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int oldUid = iter->second.second;
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int newUid = iter->second.first;
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BatteryNotifier& notifier(BatteryNotifier::getInstance());
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if (oldUid != newUid) {
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// If the UID has changed, log the status and update current UID in mTorchUidMap
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if (status == TorchModeStatus::AVAILABLE_ON) {
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notifier.noteFlashlightOff(cameraId, oldUid);
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}
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if (newStatus == TorchModeStatus::AVAILABLE_ON) {
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notifier.noteFlashlightOn(cameraId, newUid);
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}
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iter->second.second = newUid;
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} else {
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// If the UID has not changed, log the status
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if (newStatus == TorchModeStatus::AVAILABLE_ON) {
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notifier.noteFlashlightOn(cameraId, oldUid);
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} else {
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notifier.noteFlashlightOff(cameraId, oldUid);
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}
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}
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}
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}
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{
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Mutex::Autolock lock(mStatusListenerLock);
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for (auto& i : mListenerList) {
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i->onTorchStatusChanged(mapToInterface(newStatus), String16{cameraId});
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}
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}
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}
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Status CameraService::getNumberOfCameras(int32_t type, int32_t* numCameras) {
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ATRACE_CALL();
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Mutex::Autolock l(mServiceLock);
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switch (type) {
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case CAMERA_TYPE_BACKWARD_COMPATIBLE:
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*numCameras = mNumberOfNormalCameras;
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break;
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case CAMERA_TYPE_ALL:
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*numCameras = mNumberOfCameras;
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break;
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default:
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ALOGW("%s: Unknown camera type %d",
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__FUNCTION__, type);
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return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
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"Unknown camera type %d", type);
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}
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return Status::ok();
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}
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Status CameraService::getCameraInfo(int cameraId,
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CameraInfo* cameraInfo) {
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ATRACE_CALL();
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Mutex::Autolock l(mServiceLock);
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if (!mInitialized) {
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return STATUS_ERROR(ERROR_DISCONNECTED,
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"Camera subsystem is not available");
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}
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if (cameraId < 0 || cameraId >= mNumberOfCameras) {
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return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT,
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"CameraId is not valid");
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}
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Status ret = Status::ok();
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status_t err = mCameraProviderManager->getCameraInfo(std::to_string(cameraId), cameraInfo);
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if (err != OK) {
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ret = STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
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"Error retrieving camera info from device %d: %s (%d)", cameraId,
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strerror(-err), err);
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}
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return ret;
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}
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int CameraService::cameraIdToInt(const String8& cameraId) {
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int id;
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bool success = base::ParseInt(cameraId.string(), &id, 0);
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if (!success) {
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return -1;
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}
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return id;
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}
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Status CameraService::getCameraCharacteristics(const String16& cameraId,
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CameraMetadata* cameraInfo) {
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ATRACE_CALL();
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if (!cameraInfo) {
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ALOGE("%s: cameraInfo is NULL", __FUNCTION__);
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return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "cameraInfo is NULL");
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}
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if (!mInitialized) {
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ALOGE("%s: Camera HAL couldn't be initialized", __FUNCTION__);
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return STATUS_ERROR(ERROR_DISCONNECTED,
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"Camera subsystem is not available");;
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}
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Status ret{};
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status_t res = mCameraProviderManager->getCameraCharacteristics(
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String8(cameraId).string(), cameraInfo);
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if (res != OK) {
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return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION, "Unable to retrieve camera "
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"characteristics for device %s: %s (%d)", String8(cameraId).string(),
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strerror(-res), res);
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}
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return ret;
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}
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int CameraService::getCallingPid() {
|
|
return IPCThreadState::self()->getCallingPid();
|
|
}
|
|
|
|
int CameraService::getCallingUid() {
|
|
return IPCThreadState::self()->getCallingUid();
|
|
}
|
|
|
|
String8 CameraService::getFormattedCurrentTime() {
|
|
time_t now = time(nullptr);
|
|
char formattedTime[64];
|
|
strftime(formattedTime, sizeof(formattedTime), "%m-%d %H:%M:%S", localtime(&now));
|
|
return String8(formattedTime);
|
|
}
|
|
|
|
Status CameraService::getCameraVendorTagDescriptor(
|
|
/*out*/
|
|
hardware::camera2::params::VendorTagDescriptor* desc) {
|
|
ATRACE_CALL();
|
|
if (!mInitialized) {
|
|
ALOGE("%s: Camera HAL couldn't be initialized", __FUNCTION__);
|
|
return STATUS_ERROR(ERROR_DISCONNECTED, "Camera subsystem not available");
|
|
}
|
|
sp<VendorTagDescriptor> globalDescriptor = VendorTagDescriptor::getGlobalVendorTagDescriptor();
|
|
if (globalDescriptor != nullptr) {
|
|
*desc = *(globalDescriptor.get());
|
|
}
|
|
return Status::ok();
|
|
}
|
|
|
|
Status CameraService::getCameraVendorTagCache(
|
|
/*out*/ hardware::camera2::params::VendorTagDescriptorCache* cache) {
|
|
ATRACE_CALL();
|
|
if (!mInitialized) {
|
|
ALOGE("%s: Camera HAL couldn't be initialized", __FUNCTION__);
|
|
return STATUS_ERROR(ERROR_DISCONNECTED,
|
|
"Camera subsystem not available");
|
|
}
|
|
sp<VendorTagDescriptorCache> globalCache =
|
|
VendorTagDescriptorCache::getGlobalVendorTagCache();
|
|
if (globalCache != nullptr) {
|
|
*cache = *(globalCache.get());
|
|
}
|
|
return Status::ok();
|
|
}
|
|
|
|
int CameraService::getDeviceVersion(const String8& cameraId, int* facing) {
|
|
ATRACE_CALL();
|
|
|
|
int deviceVersion = 0;
|
|
|
|
status_t res;
|
|
hardware::hidl_version maxVersion{0,0};
|
|
res = mCameraProviderManager->getHighestSupportedVersion(cameraId.string(),
|
|
&maxVersion);
|
|
if (res != OK) return -1;
|
|
deviceVersion = HARDWARE_DEVICE_API_VERSION(maxVersion.get_major(), maxVersion.get_minor());
|
|
|
|
hardware::CameraInfo info;
|
|
if (facing) {
|
|
res = mCameraProviderManager->getCameraInfo(cameraId.string(), &info);
|
|
if (res != OK) return -1;
|
|
*facing = info.facing;
|
|
}
|
|
|
|
return deviceVersion;
|
|
}
|
|
|
|
Status CameraService::filterGetInfoErrorCode(status_t err) {
|
|
switch(err) {
|
|
case NO_ERROR:
|
|
return Status::ok();
|
|
case BAD_VALUE:
|
|
return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT,
|
|
"CameraId is not valid for HAL module");
|
|
case NO_INIT:
|
|
return STATUS_ERROR(ERROR_DISCONNECTED,
|
|
"Camera device not available");
|
|
default:
|
|
return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
|
|
"Camera HAL encountered error %d: %s",
|
|
err, strerror(-err));
|
|
}
|
|
}
|
|
|
|
Status CameraService::makeClient(const sp<CameraService>& cameraService,
|
|
const sp<IInterface>& cameraCb, const String16& packageName, const String8& cameraId,
|
|
int facing, int clientPid, uid_t clientUid, int servicePid, bool legacyMode,
|
|
int halVersion, int deviceVersion, apiLevel effectiveApiLevel,
|
|
/*out*/sp<BasicClient>* client) {
|
|
|
|
if (halVersion < 0 || halVersion == deviceVersion) {
|
|
// Default path: HAL version is unspecified by caller, create CameraClient
|
|
// based on device version reported by the HAL.
|
|
switch(deviceVersion) {
|
|
case CAMERA_DEVICE_API_VERSION_1_0:
|
|
if (effectiveApiLevel == API_1) { // Camera1 API route
|
|
sp<ICameraClient> tmp = static_cast<ICameraClient*>(cameraCb.get());
|
|
*client = new CameraClient(cameraService, tmp, packageName, cameraIdToInt(cameraId),
|
|
facing, clientPid, clientUid, getpid(), legacyMode);
|
|
} else { // Camera2 API route
|
|
ALOGW("Camera using old HAL version: %d", deviceVersion);
|
|
return STATUS_ERROR_FMT(ERROR_DEPRECATED_HAL,
|
|
"Camera device \"%s\" HAL version %d does not support camera2 API",
|
|
cameraId.string(), deviceVersion);
|
|
}
|
|
break;
|
|
case CAMERA_DEVICE_API_VERSION_3_0:
|
|
case CAMERA_DEVICE_API_VERSION_3_1:
|
|
case CAMERA_DEVICE_API_VERSION_3_2:
|
|
case CAMERA_DEVICE_API_VERSION_3_3:
|
|
case CAMERA_DEVICE_API_VERSION_3_4:
|
|
if (effectiveApiLevel == API_1) { // Camera1 API route
|
|
sp<ICameraClient> tmp = static_cast<ICameraClient*>(cameraCb.get());
|
|
*client = new Camera2Client(cameraService, tmp, packageName, cameraIdToInt(cameraId),
|
|
facing, clientPid, clientUid, servicePid, legacyMode);
|
|
} else { // Camera2 API route
|
|
sp<hardware::camera2::ICameraDeviceCallbacks> tmp =
|
|
static_cast<hardware::camera2::ICameraDeviceCallbacks*>(cameraCb.get());
|
|
*client = new CameraDeviceClient(cameraService, tmp, packageName, cameraId,
|
|
facing, clientPid, clientUid, servicePid);
|
|
}
|
|
break;
|
|
default:
|
|
// Should not be reachable
|
|
ALOGE("Unknown camera device HAL version: %d", deviceVersion);
|
|
return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
|
|
"Camera device \"%s\" has unknown HAL version %d",
|
|
cameraId.string(), deviceVersion);
|
|
}
|
|
} else {
|
|
// A particular HAL version is requested by caller. Create CameraClient
|
|
// based on the requested HAL version.
|
|
if (deviceVersion > CAMERA_DEVICE_API_VERSION_1_0 &&
|
|
halVersion == CAMERA_DEVICE_API_VERSION_1_0) {
|
|
// Only support higher HAL version device opened as HAL1.0 device.
|
|
sp<ICameraClient> tmp = static_cast<ICameraClient*>(cameraCb.get());
|
|
*client = new CameraClient(cameraService, tmp, packageName, cameraIdToInt(cameraId),
|
|
facing, clientPid, clientUid, servicePid, legacyMode);
|
|
} else {
|
|
// Other combinations (e.g. HAL3.x open as HAL2.x) are not supported yet.
|
|
ALOGE("Invalid camera HAL version %x: HAL %x device can only be"
|
|
" opened as HAL %x device", halVersion, deviceVersion,
|
|
CAMERA_DEVICE_API_VERSION_1_0);
|
|
return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
|
|
"Camera device \"%s\" (HAL version %d) cannot be opened as HAL version %d",
|
|
cameraId.string(), deviceVersion, halVersion);
|
|
}
|
|
}
|
|
return Status::ok();
|
|
}
|
|
|
|
String8 CameraService::toString(std::set<userid_t> intSet) {
|
|
String8 s("");
|
|
bool first = true;
|
|
for (userid_t i : intSet) {
|
|
if (first) {
|
|
s.appendFormat("%d", i);
|
|
first = false;
|
|
} else {
|
|
s.appendFormat(", %d", i);
|
|
}
|
|
}
|
|
return s;
|
|
}
|
|
|
|
int32_t CameraService::mapToInterface(TorchModeStatus status) {
|
|
int32_t serviceStatus = ICameraServiceListener::TORCH_STATUS_NOT_AVAILABLE;
|
|
switch (status) {
|
|
case TorchModeStatus::NOT_AVAILABLE:
|
|
serviceStatus = ICameraServiceListener::TORCH_STATUS_NOT_AVAILABLE;
|
|
break;
|
|
case TorchModeStatus::AVAILABLE_OFF:
|
|
serviceStatus = ICameraServiceListener::TORCH_STATUS_AVAILABLE_OFF;
|
|
break;
|
|
case TorchModeStatus::AVAILABLE_ON:
|
|
serviceStatus = ICameraServiceListener::TORCH_STATUS_AVAILABLE_ON;
|
|
break;
|
|
default:
|
|
ALOGW("Unknown new flash status: %d", status);
|
|
}
|
|
return serviceStatus;
|
|
}
|
|
|
|
CameraService::StatusInternal CameraService::mapToInternal(CameraDeviceStatus status) {
|
|
StatusInternal serviceStatus = StatusInternal::NOT_PRESENT;
|
|
switch (status) {
|
|
case CameraDeviceStatus::NOT_PRESENT:
|
|
serviceStatus = StatusInternal::NOT_PRESENT;
|
|
break;
|
|
case CameraDeviceStatus::PRESENT:
|
|
serviceStatus = StatusInternal::PRESENT;
|
|
break;
|
|
case CameraDeviceStatus::ENUMERATING:
|
|
serviceStatus = StatusInternal::ENUMERATING;
|
|
break;
|
|
default:
|
|
ALOGW("Unknown new HAL device status: %d", status);
|
|
}
|
|
return serviceStatus;
|
|
}
|
|
|
|
int32_t CameraService::mapToInterface(StatusInternal status) {
|
|
int32_t serviceStatus = ICameraServiceListener::STATUS_NOT_PRESENT;
|
|
switch (status) {
|
|
case StatusInternal::NOT_PRESENT:
|
|
serviceStatus = ICameraServiceListener::STATUS_NOT_PRESENT;
|
|
break;
|
|
case StatusInternal::PRESENT:
|
|
serviceStatus = ICameraServiceListener::STATUS_PRESENT;
|
|
break;
|
|
case StatusInternal::ENUMERATING:
|
|
serviceStatus = ICameraServiceListener::STATUS_ENUMERATING;
|
|
break;
|
|
case StatusInternal::NOT_AVAILABLE:
|
|
serviceStatus = ICameraServiceListener::STATUS_NOT_AVAILABLE;
|
|
break;
|
|
case StatusInternal::UNKNOWN:
|
|
serviceStatus = ICameraServiceListener::STATUS_UNKNOWN;
|
|
break;
|
|
default:
|
|
ALOGW("Unknown new internal device status: %d", status);
|
|
}
|
|
return serviceStatus;
|
|
}
|
|
|
|
Status CameraService::initializeShimMetadata(int cameraId) {
|
|
int uid = getCallingUid();
|
|
|
|
String16 internalPackageName("cameraserver");
|
|
String8 id = String8::format("%d", cameraId);
|
|
Status ret = Status::ok();
|
|
sp<Client> tmp = nullptr;
|
|
if (!(ret = connectHelper<ICameraClient,Client>(
|
|
sp<ICameraClient>{nullptr}, id, static_cast<int>(CAMERA_HAL_API_VERSION_UNSPECIFIED),
|
|
internalPackageName, uid, USE_CALLING_PID,
|
|
API_1, /*legacyMode*/ false, /*shimUpdateOnly*/ true,
|
|
/*out*/ tmp)
|
|
).isOk()) {
|
|
ALOGE("%s: Error initializing shim metadata: %s", __FUNCTION__, ret.toString8().string());
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
Status CameraService::getLegacyParametersLazy(int cameraId,
|
|
/*out*/
|
|
CameraParameters* parameters) {
|
|
|
|
ALOGV("%s: for cameraId: %d", __FUNCTION__, cameraId);
|
|
|
|
Status ret = Status::ok();
|
|
|
|
if (parameters == NULL) {
|
|
ALOGE("%s: parameters must not be null", __FUNCTION__);
|
|
return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "Parameters must not be null");
|
|
}
|
|
|
|
String8 id = String8::format("%d", cameraId);
|
|
|
|
// Check if we already have parameters
|
|
{
|
|
// Scope for service lock
|
|
Mutex::Autolock lock(mServiceLock);
|
|
auto cameraState = getCameraState(id);
|
|
if (cameraState == nullptr) {
|
|
ALOGE("%s: Invalid camera ID: %s", __FUNCTION__, id.string());
|
|
return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
|
|
"Invalid camera ID: %s", id.string());
|
|
}
|
|
CameraParameters p = cameraState->getShimParams();
|
|
if (!p.isEmpty()) {
|
|
*parameters = p;
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
int64_t token = IPCThreadState::self()->clearCallingIdentity();
|
|
ret = initializeShimMetadata(cameraId);
|
|
IPCThreadState::self()->restoreCallingIdentity(token);
|
|
if (!ret.isOk()) {
|
|
// Error already logged by callee
|
|
return ret;
|
|
}
|
|
|
|
// Check for parameters again
|
|
{
|
|
// Scope for service lock
|
|
Mutex::Autolock lock(mServiceLock);
|
|
auto cameraState = getCameraState(id);
|
|
if (cameraState == nullptr) {
|
|
ALOGE("%s: Invalid camera ID: %s", __FUNCTION__, id.string());
|
|
return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
|
|
"Invalid camera ID: %s", id.string());
|
|
}
|
|
CameraParameters p = cameraState->getShimParams();
|
|
if (!p.isEmpty()) {
|
|
*parameters = p;
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
ALOGE("%s: Parameters were not initialized, or were empty. Device may not be present.",
|
|
__FUNCTION__);
|
|
return STATUS_ERROR(ERROR_INVALID_OPERATION, "Unable to initialize legacy parameters");
|
|
}
|
|
|
|
// Can camera service trust the caller based on the calling UID?
|
|
static bool isTrustedCallingUid(uid_t uid) {
|
|
switch (uid) {
|
|
case AID_MEDIA: // mediaserver
|
|
case AID_CAMERASERVER: // cameraserver
|
|
case AID_RADIO: // telephony
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
Status CameraService::validateConnectLocked(const String8& cameraId,
|
|
const String8& clientName8, /*inout*/int& clientUid, /*inout*/int& clientPid,
|
|
/*out*/int& originalClientPid) const {
|
|
|
|
#ifdef __BRILLO__
|
|
UNUSED(clientName8);
|
|
UNUSED(clientUid);
|
|
UNUSED(clientPid);
|
|
UNUSED(originalClientPid);
|
|
#else
|
|
Status allowed = validateClientPermissionsLocked(cameraId, clientName8, clientUid, clientPid,
|
|
originalClientPid);
|
|
if (!allowed.isOk()) {
|
|
return allowed;
|
|
}
|
|
#endif // __BRILLO__
|
|
|
|
int callingPid = getCallingPid();
|
|
|
|
if (!mInitialized) {
|
|
ALOGE("CameraService::connect X (PID %d) rejected (camera HAL module not loaded)",
|
|
callingPid);
|
|
return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
|
|
"No camera HAL module available to open camera device \"%s\"", cameraId.string());
|
|
}
|
|
|
|
if (getCameraState(cameraId) == nullptr) {
|
|
ALOGE("CameraService::connect X (PID %d) rejected (invalid camera ID %s)", callingPid,
|
|
cameraId.string());
|
|
return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
|
|
"No camera device with ID \"%s\" available", cameraId.string());
|
|
}
|
|
|
|
status_t err = checkIfDeviceIsUsable(cameraId);
|
|
if (err != NO_ERROR) {
|
|
switch(err) {
|
|
case -ENODEV:
|
|
case -EBUSY:
|
|
return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
|
|
"No camera device with ID \"%s\" currently available", cameraId.string());
|
|
default:
|
|
return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
|
|
"Unknown error connecting to ID \"%s\"", cameraId.string());
|
|
}
|
|
}
|
|
return Status::ok();
|
|
}
|
|
|
|
Status CameraService::validateClientPermissionsLocked(const String8& cameraId,
|
|
const String8& clientName8, int& clientUid, int& clientPid,
|
|
/*out*/int& originalClientPid) const {
|
|
int callingPid = getCallingPid();
|
|
int callingUid = getCallingUid();
|
|
|
|
// Check if we can trust clientUid
|
|
if (clientUid == USE_CALLING_UID) {
|
|
clientUid = callingUid;
|
|
} else if (!isTrustedCallingUid(callingUid)) {
|
|
ALOGE("CameraService::connect X (calling PID %d, calling UID %d) rejected "
|
|
"(don't trust clientUid %d)", callingPid, callingUid, clientUid);
|
|
return STATUS_ERROR_FMT(ERROR_PERMISSION_DENIED,
|
|
"Untrusted caller (calling PID %d, UID %d) trying to "
|
|
"forward camera access to camera %s for client %s (PID %d, UID %d)",
|
|
callingPid, callingUid, cameraId.string(),
|
|
clientName8.string(), clientUid, clientPid);
|
|
}
|
|
|
|
// Check if we can trust clientPid
|
|
if (clientPid == USE_CALLING_PID) {
|
|
clientPid = callingPid;
|
|
} else if (!isTrustedCallingUid(callingUid)) {
|
|
ALOGE("CameraService::connect X (calling PID %d, calling UID %d) rejected "
|
|
"(don't trust clientPid %d)", callingPid, callingUid, clientPid);
|
|
return STATUS_ERROR_FMT(ERROR_PERMISSION_DENIED,
|
|
"Untrusted caller (calling PID %d, UID %d) trying to "
|
|
"forward camera access to camera %s for client %s (PID %d, UID %d)",
|
|
callingPid, callingUid, cameraId.string(),
|
|
clientName8.string(), clientUid, clientPid);
|
|
}
|
|
|
|
// If it's not calling from cameraserver, check the permission.
|
|
if (callingPid != getpid() &&
|
|
!checkPermission(String16("android.permission.CAMERA"), clientPid, clientUid)) {
|
|
ALOGE("Permission Denial: can't use the camera pid=%d, uid=%d", clientPid, clientUid);
|
|
return STATUS_ERROR_FMT(ERROR_PERMISSION_DENIED,
|
|
"Caller \"%s\" (PID %d, UID %d) cannot open camera \"%s\" without camera permission",
|
|
clientName8.string(), clientUid, clientPid, cameraId.string());
|
|
}
|
|
|
|
// Only use passed in clientPid to check permission. Use calling PID as the client PID that's
|
|
// connected to camera service directly.
|
|
originalClientPid = clientPid;
|
|
clientPid = callingPid;
|
|
|
|
userid_t clientUserId = multiuser_get_user_id(clientUid);
|
|
|
|
// Only allow clients who are being used by the current foreground device user, unless calling
|
|
// from our own process.
|
|
if (callingPid != getpid() && (mAllowedUsers.find(clientUserId) == mAllowedUsers.end())) {
|
|
ALOGE("CameraService::connect X (PID %d) rejected (cannot connect from "
|
|
"device user %d, currently allowed device users: %s)", callingPid, clientUserId,
|
|
toString(mAllowedUsers).string());
|
|
return STATUS_ERROR_FMT(ERROR_PERMISSION_DENIED,
|
|
"Callers from device user %d are not currently allowed to connect to camera \"%s\"",
|
|
clientUserId, cameraId.string());
|
|
}
|
|
|
|
return Status::ok();
|
|
}
|
|
|
|
status_t CameraService::checkIfDeviceIsUsable(const String8& cameraId) const {
|
|
auto cameraState = getCameraState(cameraId);
|
|
int callingPid = getCallingPid();
|
|
if (cameraState == nullptr) {
|
|
ALOGE("CameraService::connect X (PID %d) rejected (invalid camera ID %s)", callingPid,
|
|
cameraId.string());
|
|
return -ENODEV;
|
|
}
|
|
|
|
StatusInternal currentStatus = cameraState->getStatus();
|
|
if (currentStatus == StatusInternal::NOT_PRESENT) {
|
|
ALOGE("CameraService::connect X (PID %d) rejected (camera %s is not connected)",
|
|
callingPid, cameraId.string());
|
|
return -ENODEV;
|
|
} else if (currentStatus == StatusInternal::ENUMERATING) {
|
|
ALOGE("CameraService::connect X (PID %d) rejected, (camera %s is initializing)",
|
|
callingPid, cameraId.string());
|
|
return -EBUSY;
|
|
}
|
|
|
|
return NO_ERROR;
|
|
}
|
|
|
|
void CameraService::finishConnectLocked(const sp<BasicClient>& client,
|
|
const CameraService::DescriptorPtr& desc) {
|
|
|
|
// Make a descriptor for the incoming client
|
|
auto clientDescriptor = CameraService::CameraClientManager::makeClientDescriptor(client, desc);
|
|
auto evicted = mActiveClientManager.addAndEvict(clientDescriptor);
|
|
|
|
logConnected(desc->getKey(), static_cast<int>(desc->getOwnerId()),
|
|
String8(client->getPackageName()));
|
|
|
|
if (evicted.size() > 0) {
|
|
// This should never happen - clients should already have been removed in disconnect
|
|
for (auto& i : evicted) {
|
|
ALOGE("%s: Invalid state: Client for camera %s was not removed in disconnect",
|
|
__FUNCTION__, i->getKey().string());
|
|
}
|
|
|
|
LOG_ALWAYS_FATAL("%s: Invalid state for CameraService, clients not evicted properly",
|
|
__FUNCTION__);
|
|
}
|
|
|
|
// And register a death notification for the client callback. Do
|
|
// this last to avoid Binder policy where a nested Binder
|
|
// transaction might be pre-empted to service the client death
|
|
// notification if the client process dies before linkToDeath is
|
|
// invoked.
|
|
sp<IBinder> remoteCallback = client->getRemote();
|
|
if (remoteCallback != nullptr) {
|
|
remoteCallback->linkToDeath(this);
|
|
}
|
|
}
|
|
|
|
status_t CameraService::handleEvictionsLocked(const String8& cameraId, int clientPid,
|
|
apiLevel effectiveApiLevel, const sp<IBinder>& remoteCallback, const String8& packageName,
|
|
/*out*/
|
|
sp<BasicClient>* client,
|
|
std::shared_ptr<resource_policy::ClientDescriptor<String8, sp<BasicClient>>>* partial) {
|
|
ATRACE_CALL();
|
|
status_t ret = NO_ERROR;
|
|
std::vector<DescriptorPtr> evictedClients;
|
|
DescriptorPtr clientDescriptor;
|
|
{
|
|
if (effectiveApiLevel == API_1) {
|
|
// If we are using API1, any existing client for this camera ID with the same remote
|
|
// should be returned rather than evicted to allow MediaRecorder to work properly.
|
|
|
|
auto current = mActiveClientManager.get(cameraId);
|
|
if (current != nullptr) {
|
|
auto clientSp = current->getValue();
|
|
if (clientSp.get() != nullptr) { // should never be needed
|
|
if (!clientSp->canCastToApiClient(effectiveApiLevel)) {
|
|
ALOGW("CameraService connect called from same client, but with a different"
|
|
" API level, evicting prior client...");
|
|
} else if (clientSp->getRemote() == remoteCallback) {
|
|
ALOGI("CameraService::connect X (PID %d) (second call from same"
|
|
" app binder, returning the same client)", clientPid);
|
|
*client = clientSp;
|
|
return NO_ERROR;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Get current active client PIDs
|
|
std::vector<int> ownerPids(mActiveClientManager.getAllOwners());
|
|
ownerPids.push_back(clientPid);
|
|
|
|
std::vector<int> priorityScores(ownerPids.size());
|
|
std::vector<int> states(ownerPids.size());
|
|
|
|
// Get priority scores of all active PIDs
|
|
status_t err = ProcessInfoService::getProcessStatesScoresFromPids(
|
|
ownerPids.size(), &ownerPids[0], /*out*/&states[0],
|
|
/*out*/&priorityScores[0]);
|
|
if (err != OK) {
|
|
ALOGE("%s: Priority score query failed: %d",
|
|
__FUNCTION__, err);
|
|
return err;
|
|
}
|
|
|
|
// Update all active clients' priorities
|
|
std::map<int,resource_policy::ClientPriority> pidToPriorityMap;
|
|
for (size_t i = 0; i < ownerPids.size() - 1; i++) {
|
|
pidToPriorityMap.emplace(ownerPids[i],
|
|
resource_policy::ClientPriority(priorityScores[i], states[i]));
|
|
}
|
|
mActiveClientManager.updatePriorities(pidToPriorityMap);
|
|
|
|
// Get state for the given cameraId
|
|
auto state = getCameraState(cameraId);
|
|
if (state == nullptr) {
|
|
ALOGE("CameraService::connect X (PID %d) rejected (no camera device with ID %s)",
|
|
clientPid, cameraId.string());
|
|
// Should never get here because validateConnectLocked should have errored out
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
// Make descriptor for incoming client
|
|
clientDescriptor = CameraClientManager::makeClientDescriptor(cameraId,
|
|
sp<BasicClient>{nullptr}, static_cast<int32_t>(state->getCost()),
|
|
state->getConflicting(),
|
|
priorityScores[priorityScores.size() - 1],
|
|
clientPid,
|
|
states[states.size() - 1]);
|
|
|
|
// Find clients that would be evicted
|
|
auto evicted = mActiveClientManager.wouldEvict(clientDescriptor);
|
|
|
|
// If the incoming client was 'evicted,' higher priority clients have the camera in the
|
|
// background, so we cannot do evictions
|
|
if (std::find(evicted.begin(), evicted.end(), clientDescriptor) != evicted.end()) {
|
|
ALOGE("CameraService::connect X (PID %d) rejected (existing client(s) with higher"
|
|
" priority).", clientPid);
|
|
|
|
sp<BasicClient> clientSp = clientDescriptor->getValue();
|
|
String8 curTime = getFormattedCurrentTime();
|
|
auto incompatibleClients =
|
|
mActiveClientManager.getIncompatibleClients(clientDescriptor);
|
|
|
|
String8 msg = String8::format("%s : DENIED connect device %s client for package %s "
|
|
"(PID %d, score %d state %d) due to eviction policy", curTime.string(),
|
|
cameraId.string(), packageName.string(), clientPid,
|
|
priorityScores[priorityScores.size() - 1],
|
|
states[states.size() - 1]);
|
|
|
|
for (auto& i : incompatibleClients) {
|
|
msg.appendFormat("\n - Blocked by existing device %s client for package %s"
|
|
"(PID %" PRId32 ", score %" PRId32 ", state %" PRId32 ")",
|
|
i->getKey().string(),
|
|
String8{i->getValue()->getPackageName()}.string(),
|
|
i->getOwnerId(), i->getPriority().getScore(),
|
|
i->getPriority().getState());
|
|
ALOGE(" Conflicts with: Device %s, client package %s (PID %"
|
|
PRId32 ", score %" PRId32 ", state %" PRId32 ")", i->getKey().string(),
|
|
String8{i->getValue()->getPackageName()}.string(), i->getOwnerId(),
|
|
i->getPriority().getScore(), i->getPriority().getState());
|
|
}
|
|
|
|
// Log the client's attempt
|
|
Mutex::Autolock l(mLogLock);
|
|
mEventLog.add(msg);
|
|
|
|
return -EBUSY;
|
|
}
|
|
|
|
for (auto& i : evicted) {
|
|
sp<BasicClient> clientSp = i->getValue();
|
|
if (clientSp.get() == nullptr) {
|
|
ALOGE("%s: Invalid state: Null client in active client list.", __FUNCTION__);
|
|
|
|
// TODO: Remove this
|
|
LOG_ALWAYS_FATAL("%s: Invalid state for CameraService, null client in active list",
|
|
__FUNCTION__);
|
|
mActiveClientManager.remove(i);
|
|
continue;
|
|
}
|
|
|
|
ALOGE("CameraService::connect evicting conflicting client for camera ID %s",
|
|
i->getKey().string());
|
|
evictedClients.push_back(i);
|
|
|
|
// Log the clients evicted
|
|
logEvent(String8::format("EVICT device %s client held by package %s (PID"
|
|
" %" PRId32 ", score %" PRId32 ", state %" PRId32 ")\n - Evicted by device %s client for"
|
|
" package %s (PID %d, score %" PRId32 ", state %" PRId32 ")",
|
|
i->getKey().string(), String8{clientSp->getPackageName()}.string(),
|
|
i->getOwnerId(), i->getPriority().getScore(),
|
|
i->getPriority().getState(), cameraId.string(),
|
|
packageName.string(), clientPid,
|
|
priorityScores[priorityScores.size() - 1],
|
|
states[states.size() - 1]));
|
|
|
|
// Notify the client of disconnection
|
|
clientSp->notifyError(hardware::camera2::ICameraDeviceCallbacks::ERROR_CAMERA_DISCONNECTED,
|
|
CaptureResultExtras());
|
|
}
|
|
}
|
|
|
|
// Do not hold mServiceLock while disconnecting clients, but retain the condition blocking
|
|
// other clients from connecting in mServiceLockWrapper if held
|
|
mServiceLock.unlock();
|
|
|
|
// Clear caller identity temporarily so client disconnect PID checks work correctly
|
|
int64_t token = IPCThreadState::self()->clearCallingIdentity();
|
|
|
|
// Destroy evicted clients
|
|
for (auto& i : evictedClients) {
|
|
// Disconnect is blocking, and should only have returned when HAL has cleaned up
|
|
i->getValue()->disconnect(); // Clients will remove themselves from the active client list
|
|
}
|
|
|
|
IPCThreadState::self()->restoreCallingIdentity(token);
|
|
|
|
for (const auto& i : evictedClients) {
|
|
ALOGV("%s: Waiting for disconnect to complete for client for device %s (PID %" PRId32 ")",
|
|
__FUNCTION__, i->getKey().string(), i->getOwnerId());
|
|
ret = mActiveClientManager.waitUntilRemoved(i, DEFAULT_DISCONNECT_TIMEOUT_NS);
|
|
if (ret == TIMED_OUT) {
|
|
ALOGE("%s: Timed out waiting for client for device %s to disconnect, "
|
|
"current clients:\n%s", __FUNCTION__, i->getKey().string(),
|
|
mActiveClientManager.toString().string());
|
|
return -EBUSY;
|
|
}
|
|
if (ret != NO_ERROR) {
|
|
ALOGE("%s: Received error waiting for client for device %s to disconnect: %s (%d), "
|
|
"current clients:\n%s", __FUNCTION__, i->getKey().string(), strerror(-ret),
|
|
ret, mActiveClientManager.toString().string());
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
evictedClients.clear();
|
|
|
|
// Once clients have been disconnected, relock
|
|
mServiceLock.lock();
|
|
|
|
// Check again if the device was unplugged or something while we weren't holding mServiceLock
|
|
if ((ret = checkIfDeviceIsUsable(cameraId)) != NO_ERROR) {
|
|
return ret;
|
|
}
|
|
|
|
*partial = clientDescriptor;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
Status CameraService::connect(
|
|
const sp<ICameraClient>& cameraClient,
|
|
int cameraId,
|
|
const String16& clientPackageName,
|
|
int clientUid,
|
|
int clientPid,
|
|
/*out*/
|
|
sp<ICamera>* device) {
|
|
|
|
ATRACE_CALL();
|
|
Status ret = Status::ok();
|
|
String8 id = String8::format("%d", cameraId);
|
|
sp<Client> client = nullptr;
|
|
ret = connectHelper<ICameraClient,Client>(cameraClient, id,
|
|
CAMERA_HAL_API_VERSION_UNSPECIFIED, clientPackageName, clientUid, clientPid, API_1,
|
|
/*legacyMode*/ false, /*shimUpdateOnly*/ false,
|
|
/*out*/client);
|
|
|
|
if(!ret.isOk()) {
|
|
logRejected(id, getCallingPid(), String8(clientPackageName),
|
|
ret.toString8());
|
|
return ret;
|
|
}
|
|
|
|
*device = client;
|
|
return ret;
|
|
}
|
|
|
|
Status CameraService::connectLegacy(
|
|
const sp<ICameraClient>& cameraClient,
|
|
int cameraId, int halVersion,
|
|
const String16& clientPackageName,
|
|
int clientUid,
|
|
/*out*/
|
|
sp<ICamera>* device) {
|
|
|
|
ATRACE_CALL();
|
|
String8 id = String8::format("%d", cameraId);
|
|
|
|
Status ret = Status::ok();
|
|
sp<Client> client = nullptr;
|
|
ret = connectHelper<ICameraClient,Client>(cameraClient, id, halVersion,
|
|
clientPackageName, clientUid, USE_CALLING_PID, API_1,
|
|
/*legacyMode*/ true, /*shimUpdateOnly*/ false,
|
|
/*out*/client);
|
|
|
|
if(!ret.isOk()) {
|
|
logRejected(id, getCallingPid(), String8(clientPackageName),
|
|
ret.toString8());
|
|
return ret;
|
|
}
|
|
|
|
*device = client;
|
|
return ret;
|
|
}
|
|
|
|
Status CameraService::connectDevice(
|
|
const sp<hardware::camera2::ICameraDeviceCallbacks>& cameraCb,
|
|
const String16& cameraId,
|
|
const String16& clientPackageName,
|
|
int clientUid,
|
|
/*out*/
|
|
sp<hardware::camera2::ICameraDeviceUser>* device) {
|
|
|
|
ATRACE_CALL();
|
|
Status ret = Status::ok();
|
|
String8 id = String8(cameraId);
|
|
sp<CameraDeviceClient> client = nullptr;
|
|
ret = connectHelper<hardware::camera2::ICameraDeviceCallbacks,CameraDeviceClient>(cameraCb, id,
|
|
CAMERA_HAL_API_VERSION_UNSPECIFIED, clientPackageName,
|
|
clientUid, USE_CALLING_PID, API_2,
|
|
/*legacyMode*/ false, /*shimUpdateOnly*/ false,
|
|
/*out*/client);
|
|
|
|
if(!ret.isOk()) {
|
|
logRejected(id, getCallingPid(), String8(clientPackageName),
|
|
ret.toString8());
|
|
return ret;
|
|
}
|
|
|
|
*device = client;
|
|
return ret;
|
|
}
|
|
|
|
template<class CALLBACK, class CLIENT>
|
|
Status CameraService::connectHelper(const sp<CALLBACK>& cameraCb, const String8& cameraId,
|
|
int halVersion, const String16& clientPackageName, int clientUid, int clientPid,
|
|
apiLevel effectiveApiLevel, bool legacyMode, bool shimUpdateOnly,
|
|
/*out*/sp<CLIENT>& device) {
|
|
binder::Status ret = binder::Status::ok();
|
|
|
|
String8 clientName8(clientPackageName);
|
|
|
|
int originalClientPid = 0;
|
|
|
|
ALOGI("CameraService::connect call (PID %d \"%s\", camera ID %s) for HAL version %s and "
|
|
"Camera API version %d", clientPid, clientName8.string(), cameraId.string(),
|
|
(halVersion == -1) ? "default" : std::to_string(halVersion).c_str(),
|
|
static_cast<int>(effectiveApiLevel));
|
|
|
|
sp<CLIENT> client = nullptr;
|
|
{
|
|
// Acquire mServiceLock and prevent other clients from connecting
|
|
std::unique_ptr<AutoConditionLock> lock =
|
|
AutoConditionLock::waitAndAcquire(mServiceLockWrapper, DEFAULT_CONNECT_TIMEOUT_NS);
|
|
|
|
if (lock == nullptr) {
|
|
ALOGE("CameraService::connect (PID %d) rejected (too many other clients connecting)."
|
|
, clientPid);
|
|
return STATUS_ERROR_FMT(ERROR_MAX_CAMERAS_IN_USE,
|
|
"Cannot open camera %s for \"%s\" (PID %d): Too many other clients connecting",
|
|
cameraId.string(), clientName8.string(), clientPid);
|
|
}
|
|
|
|
// Enforce client permissions and do basic sanity checks
|
|
if(!(ret = validateConnectLocked(cameraId, clientName8,
|
|
/*inout*/clientUid, /*inout*/clientPid, /*out*/originalClientPid)).isOk()) {
|
|
return ret;
|
|
}
|
|
|
|
// Check the shim parameters after acquiring lock, if they have already been updated and
|
|
// we were doing a shim update, return immediately
|
|
if (shimUpdateOnly) {
|
|
auto cameraState = getCameraState(cameraId);
|
|
if (cameraState != nullptr) {
|
|
if (!cameraState->getShimParams().isEmpty()) return ret;
|
|
}
|
|
}
|
|
|
|
status_t err;
|
|
|
|
sp<BasicClient> clientTmp = nullptr;
|
|
std::shared_ptr<resource_policy::ClientDescriptor<String8, sp<BasicClient>>> partial;
|
|
if ((err = handleEvictionsLocked(cameraId, originalClientPid, effectiveApiLevel,
|
|
IInterface::asBinder(cameraCb), clientName8, /*out*/&clientTmp,
|
|
/*out*/&partial)) != NO_ERROR) {
|
|
switch (err) {
|
|
case -ENODEV:
|
|
return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
|
|
"No camera device with ID \"%s\" currently available",
|
|
cameraId.string());
|
|
case -EBUSY:
|
|
return STATUS_ERROR_FMT(ERROR_CAMERA_IN_USE,
|
|
"Higher-priority client using camera, ID \"%s\" currently unavailable",
|
|
cameraId.string());
|
|
default:
|
|
return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
|
|
"Unexpected error %s (%d) opening camera \"%s\"",
|
|
strerror(-err), err, cameraId.string());
|
|
}
|
|
}
|
|
|
|
if (clientTmp.get() != nullptr) {
|
|
// Handle special case for API1 MediaRecorder where the existing client is returned
|
|
device = static_cast<CLIENT*>(clientTmp.get());
|
|
return ret;
|
|
}
|
|
|
|
// give flashlight a chance to close devices if necessary.
|
|
mFlashlight->prepareDeviceOpen(cameraId);
|
|
|
|
int facing = -1;
|
|
int deviceVersion = getDeviceVersion(cameraId, /*out*/&facing);
|
|
if (facing == -1) {
|
|
ALOGE("%s: Unable to get camera device \"%s\" facing", __FUNCTION__, cameraId.string());
|
|
return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
|
|
"Unable to get camera device \"%s\" facing", cameraId.string());
|
|
}
|
|
|
|
sp<BasicClient> tmp = nullptr;
|
|
if(!(ret = makeClient(this, cameraCb, clientPackageName, cameraId, facing, clientPid,
|
|
clientUid, getpid(), legacyMode, halVersion, deviceVersion, effectiveApiLevel,
|
|
/*out*/&tmp)).isOk()) {
|
|
return ret;
|
|
}
|
|
client = static_cast<CLIENT*>(tmp.get());
|
|
|
|
LOG_ALWAYS_FATAL_IF(client.get() == nullptr, "%s: CameraService in invalid state",
|
|
__FUNCTION__);
|
|
|
|
err = client->initialize(mCameraProviderManager);
|
|
if (err != OK) {
|
|
ALOGE("%s: Could not initialize client from HAL.", __FUNCTION__);
|
|
// Errors could be from the HAL module open call or from AppOpsManager
|
|
switch(err) {
|
|
case BAD_VALUE:
|
|
return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
|
|
"Illegal argument to HAL module for camera \"%s\"", cameraId.string());
|
|
case -EBUSY:
|
|
return STATUS_ERROR_FMT(ERROR_CAMERA_IN_USE,
|
|
"Camera \"%s\" is already open", cameraId.string());
|
|
case -EUSERS:
|
|
return STATUS_ERROR_FMT(ERROR_MAX_CAMERAS_IN_USE,
|
|
"Too many cameras already open, cannot open camera \"%s\"",
|
|
cameraId.string());
|
|
case PERMISSION_DENIED:
|
|
return STATUS_ERROR_FMT(ERROR_PERMISSION_DENIED,
|
|
"No permission to open camera \"%s\"", cameraId.string());
|
|
case -EACCES:
|
|
return STATUS_ERROR_FMT(ERROR_DISABLED,
|
|
"Camera \"%s\" disabled by policy", cameraId.string());
|
|
case -ENODEV:
|
|
default:
|
|
return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
|
|
"Failed to initialize camera \"%s\": %s (%d)", cameraId.string(),
|
|
strerror(-err), err);
|
|
}
|
|
}
|
|
|
|
// Update shim paremeters for legacy clients
|
|
if (effectiveApiLevel == API_1) {
|
|
// Assume we have always received a Client subclass for API1
|
|
sp<Client> shimClient = reinterpret_cast<Client*>(client.get());
|
|
String8 rawParams = shimClient->getParameters();
|
|
CameraParameters params(rawParams);
|
|
|
|
auto cameraState = getCameraState(cameraId);
|
|
if (cameraState != nullptr) {
|
|
cameraState->setShimParams(params);
|
|
} else {
|
|
ALOGE("%s: Cannot update shim parameters for camera %s, no such device exists.",
|
|
__FUNCTION__, cameraId.string());
|
|
}
|
|
}
|
|
|
|
if (shimUpdateOnly) {
|
|
// If only updating legacy shim parameters, immediately disconnect client
|
|
mServiceLock.unlock();
|
|
client->disconnect();
|
|
mServiceLock.lock();
|
|
} else {
|
|
// Otherwise, add client to active clients list
|
|
finishConnectLocked(client, partial);
|
|
}
|
|
} // lock is destroyed, allow further connect calls
|
|
|
|
// Important: release the mutex here so the client can call back into the service from its
|
|
// destructor (can be at the end of the call)
|
|
device = client;
|
|
return ret;
|
|
}
|
|
|
|
Status CameraService::setTorchMode(const String16& cameraId, bool enabled,
|
|
const sp<IBinder>& clientBinder) {
|
|
Mutex::Autolock lock(mServiceLock);
|
|
|
|
ATRACE_CALL();
|
|
if (enabled && clientBinder == nullptr) {
|
|
ALOGE("%s: torch client binder is NULL", __FUNCTION__);
|
|
return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT,
|
|
"Torch client Binder is null");
|
|
}
|
|
|
|
String8 id = String8(cameraId.string());
|
|
int uid = getCallingUid();
|
|
|
|
// verify id is valid.
|
|
auto state = getCameraState(id);
|
|
if (state == nullptr) {
|
|
ALOGE("%s: camera id is invalid %s", __FUNCTION__, id.string());
|
|
return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
|
|
"Camera ID \"%s\" is a not valid camera ID", id.string());
|
|
}
|
|
|
|
StatusInternal cameraStatus = state->getStatus();
|
|
if (cameraStatus != StatusInternal::PRESENT &&
|
|
cameraStatus != StatusInternal::NOT_AVAILABLE) {
|
|
ALOGE("%s: camera id is invalid %s, status %d", __FUNCTION__, id.string(), (int)cameraStatus);
|
|
return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
|
|
"Camera ID \"%s\" is a not valid camera ID", id.string());
|
|
}
|
|
|
|
{
|
|
Mutex::Autolock al(mTorchStatusMutex);
|
|
TorchModeStatus status;
|
|
status_t err = getTorchStatusLocked(id, &status);
|
|
if (err != OK) {
|
|
if (err == NAME_NOT_FOUND) {
|
|
return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
|
|
"Camera \"%s\" does not have a flash unit", id.string());
|
|
}
|
|
ALOGE("%s: getting current torch status failed for camera %s",
|
|
__FUNCTION__, id.string());
|
|
return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
|
|
"Error updating torch status for camera \"%s\": %s (%d)", id.string(),
|
|
strerror(-err), err);
|
|
}
|
|
|
|
if (status == TorchModeStatus::NOT_AVAILABLE) {
|
|
if (cameraStatus == StatusInternal::NOT_AVAILABLE) {
|
|
ALOGE("%s: torch mode of camera %s is not available because "
|
|
"camera is in use", __FUNCTION__, id.string());
|
|
return STATUS_ERROR_FMT(ERROR_CAMERA_IN_USE,
|
|
"Torch for camera \"%s\" is not available due to an existing camera user",
|
|
id.string());
|
|
} else {
|
|
ALOGE("%s: torch mode of camera %s is not available due to "
|
|
"insufficient resources", __FUNCTION__, id.string());
|
|
return STATUS_ERROR_FMT(ERROR_MAX_CAMERAS_IN_USE,
|
|
"Torch for camera \"%s\" is not available due to insufficient resources",
|
|
id.string());
|
|
}
|
|
}
|
|
}
|
|
|
|
{
|
|
// Update UID map - this is used in the torch status changed callbacks, so must be done
|
|
// before setTorchMode
|
|
Mutex::Autolock al(mTorchUidMapMutex);
|
|
if (mTorchUidMap.find(id) == mTorchUidMap.end()) {
|
|
mTorchUidMap[id].first = uid;
|
|
mTorchUidMap[id].second = uid;
|
|
} else {
|
|
// Set the pending UID
|
|
mTorchUidMap[id].first = uid;
|
|
}
|
|
}
|
|
|
|
status_t err = mFlashlight->setTorchMode(id, enabled);
|
|
|
|
if (err != OK) {
|
|
int32_t errorCode;
|
|
String8 msg;
|
|
switch (err) {
|
|
case -ENOSYS:
|
|
msg = String8::format("Camera \"%s\" has no flashlight",
|
|
id.string());
|
|
errorCode = ERROR_ILLEGAL_ARGUMENT;
|
|
break;
|
|
default:
|
|
msg = String8::format(
|
|
"Setting torch mode of camera \"%s\" to %d failed: %s (%d)",
|
|
id.string(), enabled, strerror(-err), err);
|
|
errorCode = ERROR_INVALID_OPERATION;
|
|
}
|
|
ALOGE("%s: %s", __FUNCTION__, msg.string());
|
|
return STATUS_ERROR(errorCode, msg.string());
|
|
}
|
|
|
|
{
|
|
// update the link to client's death
|
|
Mutex::Autolock al(mTorchClientMapMutex);
|
|
ssize_t index = mTorchClientMap.indexOfKey(id);
|
|
if (enabled) {
|
|
if (index == NAME_NOT_FOUND) {
|
|
mTorchClientMap.add(id, clientBinder);
|
|
} else {
|
|
mTorchClientMap.valueAt(index)->unlinkToDeath(this);
|
|
mTorchClientMap.replaceValueAt(index, clientBinder);
|
|
}
|
|
clientBinder->linkToDeath(this);
|
|
} else if (index != NAME_NOT_FOUND) {
|
|
mTorchClientMap.valueAt(index)->unlinkToDeath(this);
|
|
}
|
|
}
|
|
|
|
return Status::ok();
|
|
}
|
|
|
|
Status CameraService::notifySystemEvent(int32_t eventId,
|
|
const std::vector<int32_t>& args) {
|
|
ATRACE_CALL();
|
|
|
|
switch(eventId) {
|
|
case ICameraService::EVENT_USER_SWITCHED: {
|
|
doUserSwitch(/*newUserIds*/ args);
|
|
break;
|
|
}
|
|
case ICameraService::EVENT_NONE:
|
|
default: {
|
|
ALOGW("%s: Received invalid system event from system_server: %d", __FUNCTION__,
|
|
eventId);
|
|
break;
|
|
}
|
|
}
|
|
return Status::ok();
|
|
}
|
|
|
|
Status CameraService::addListener(const sp<ICameraServiceListener>& listener,
|
|
/*out*/
|
|
std::vector<hardware::CameraStatus> *cameraStatuses) {
|
|
ATRACE_CALL();
|
|
|
|
ALOGV("%s: Add listener %p", __FUNCTION__, listener.get());
|
|
|
|
if (listener == nullptr) {
|
|
ALOGE("%s: Listener must not be null", __FUNCTION__);
|
|
return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "Null listener given to addListener");
|
|
}
|
|
|
|
Mutex::Autolock lock(mServiceLock);
|
|
|
|
{
|
|
Mutex::Autolock lock(mStatusListenerLock);
|
|
for (auto& it : mListenerList) {
|
|
if (IInterface::asBinder(it) == IInterface::asBinder(listener)) {
|
|
ALOGW("%s: Tried to add listener %p which was already subscribed",
|
|
__FUNCTION__, listener.get());
|
|
return STATUS_ERROR(ERROR_ALREADY_EXISTS, "Listener already registered");
|
|
}
|
|
}
|
|
|
|
mListenerList.push_back(listener);
|
|
}
|
|
|
|
/* Collect current devices and status */
|
|
{
|
|
Mutex::Autolock lock(mCameraStatesLock);
|
|
for (auto& i : mCameraStates) {
|
|
cameraStatuses->emplace_back(i.first, mapToInterface(i.second->getStatus()));
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Immediately signal current torch status to this listener only
|
|
* This may be a subset of all the devices, so don't include it in the response directly
|
|
*/
|
|
{
|
|
Mutex::Autolock al(mTorchStatusMutex);
|
|
for (size_t i = 0; i < mTorchStatusMap.size(); i++ ) {
|
|
String16 id = String16(mTorchStatusMap.keyAt(i).string());
|
|
listener->onTorchStatusChanged(mapToInterface(mTorchStatusMap.valueAt(i)), id);
|
|
}
|
|
}
|
|
|
|
return Status::ok();
|
|
}
|
|
|
|
Status CameraService::removeListener(const sp<ICameraServiceListener>& listener) {
|
|
ATRACE_CALL();
|
|
|
|
ALOGV("%s: Remove listener %p", __FUNCTION__, listener.get());
|
|
|
|
if (listener == 0) {
|
|
ALOGE("%s: Listener must not be null", __FUNCTION__);
|
|
return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "Null listener given to removeListener");
|
|
}
|
|
|
|
Mutex::Autolock lock(mServiceLock);
|
|
|
|
{
|
|
Mutex::Autolock lock(mStatusListenerLock);
|
|
for (auto it = mListenerList.begin(); it != mListenerList.end(); it++) {
|
|
if (IInterface::asBinder(*it) == IInterface::asBinder(listener)) {
|
|
mListenerList.erase(it);
|
|
return Status::ok();
|
|
}
|
|
}
|
|
}
|
|
|
|
ALOGW("%s: Tried to remove a listener %p which was not subscribed",
|
|
__FUNCTION__, listener.get());
|
|
|
|
return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "Unregistered listener given to removeListener");
|
|
}
|
|
|
|
Status CameraService::getLegacyParameters(int cameraId, /*out*/String16* parameters) {
|
|
|
|
ATRACE_CALL();
|
|
ALOGV("%s: for camera ID = %d", __FUNCTION__, cameraId);
|
|
|
|
if (parameters == NULL) {
|
|
ALOGE("%s: parameters must not be null", __FUNCTION__);
|
|
return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "Parameters must not be null");
|
|
}
|
|
|
|
Status ret = Status::ok();
|
|
|
|
CameraParameters shimParams;
|
|
if (!(ret = getLegacyParametersLazy(cameraId, /*out*/&shimParams)).isOk()) {
|
|
// Error logged by caller
|
|
return ret;
|
|
}
|
|
|
|
String8 shimParamsString8 = shimParams.flatten();
|
|
String16 shimParamsString16 = String16(shimParamsString8);
|
|
|
|
*parameters = shimParamsString16;
|
|
|
|
return ret;
|
|
}
|
|
|
|
Status CameraService::supportsCameraApi(const String16& cameraId, int apiVersion,
|
|
/*out*/ bool *isSupported) {
|
|
ATRACE_CALL();
|
|
|
|
const String8 id = String8(cameraId);
|
|
|
|
ALOGV("%s: for camera ID = %s", __FUNCTION__, id.string());
|
|
|
|
switch (apiVersion) {
|
|
case API_VERSION_1:
|
|
case API_VERSION_2:
|
|
break;
|
|
default:
|
|
String8 msg = String8::format("Unknown API version %d", apiVersion);
|
|
ALOGE("%s: %s", __FUNCTION__, msg.string());
|
|
return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, msg.string());
|
|
}
|
|
|
|
int deviceVersion = getDeviceVersion(id);
|
|
switch(deviceVersion) {
|
|
case CAMERA_DEVICE_API_VERSION_1_0:
|
|
case CAMERA_DEVICE_API_VERSION_3_0:
|
|
case CAMERA_DEVICE_API_VERSION_3_1:
|
|
if (apiVersion == API_VERSION_2) {
|
|
ALOGV("%s: Camera id %s uses HAL version %d <3.2, doesn't support api2 without shim",
|
|
__FUNCTION__, id.string(), deviceVersion);
|
|
*isSupported = false;
|
|
} else { // if (apiVersion == API_VERSION_1) {
|
|
ALOGV("%s: Camera id %s uses older HAL before 3.2, but api1 is always supported",
|
|
__FUNCTION__, id.string());
|
|
*isSupported = true;
|
|
}
|
|
break;
|
|
case CAMERA_DEVICE_API_VERSION_3_2:
|
|
case CAMERA_DEVICE_API_VERSION_3_3:
|
|
case CAMERA_DEVICE_API_VERSION_3_4:
|
|
ALOGV("%s: Camera id %s uses HAL3.2 or newer, supports api1/api2 directly",
|
|
__FUNCTION__, id.string());
|
|
*isSupported = true;
|
|
break;
|
|
case -1: {
|
|
String8 msg = String8::format("Unknown camera ID %s", id.string());
|
|
ALOGE("%s: %s", __FUNCTION__, msg.string());
|
|
return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, msg.string());
|
|
}
|
|
default: {
|
|
String8 msg = String8::format("Unknown device version %x for device %s",
|
|
deviceVersion, id.string());
|
|
ALOGE("%s: %s", __FUNCTION__, msg.string());
|
|
return STATUS_ERROR(ERROR_INVALID_OPERATION, msg.string());
|
|
}
|
|
}
|
|
|
|
return Status::ok();
|
|
}
|
|
|
|
void CameraService::removeByClient(const BasicClient* client) {
|
|
Mutex::Autolock lock(mServiceLock);
|
|
for (auto& i : mActiveClientManager.getAll()) {
|
|
auto clientSp = i->getValue();
|
|
if (clientSp.get() == client) {
|
|
mActiveClientManager.remove(i);
|
|
}
|
|
}
|
|
}
|
|
|
|
bool CameraService::evictClientIdByRemote(const wp<IBinder>& remote) {
|
|
const int callingPid = getCallingPid();
|
|
const int servicePid = getpid();
|
|
bool ret = false;
|
|
{
|
|
// Acquire mServiceLock and prevent other clients from connecting
|
|
std::unique_ptr<AutoConditionLock> lock =
|
|
AutoConditionLock::waitAndAcquire(mServiceLockWrapper);
|
|
|
|
|
|
std::vector<sp<BasicClient>> evicted;
|
|
for (auto& i : mActiveClientManager.getAll()) {
|
|
auto clientSp = i->getValue();
|
|
if (clientSp.get() == nullptr) {
|
|
ALOGE("%s: Dead client still in mActiveClientManager.", __FUNCTION__);
|
|
mActiveClientManager.remove(i);
|
|
continue;
|
|
}
|
|
if (remote == clientSp->getRemote() && (callingPid == servicePid ||
|
|
callingPid == clientSp->getClientPid())) {
|
|
mActiveClientManager.remove(i);
|
|
evicted.push_back(clientSp);
|
|
|
|
// Notify the client of disconnection
|
|
clientSp->notifyError(
|
|
hardware::camera2::ICameraDeviceCallbacks::ERROR_CAMERA_DISCONNECTED,
|
|
CaptureResultExtras());
|
|
}
|
|
}
|
|
|
|
// Do not hold mServiceLock while disconnecting clients, but retain the condition blocking
|
|
// other clients from connecting in mServiceLockWrapper if held
|
|
mServiceLock.unlock();
|
|
|
|
// Do not clear caller identity, remote caller should be client proccess
|
|
|
|
for (auto& i : evicted) {
|
|
if (i.get() != nullptr) {
|
|
i->disconnect();
|
|
ret = true;
|
|
}
|
|
}
|
|
|
|
// Reacquire mServiceLock
|
|
mServiceLock.lock();
|
|
|
|
} // lock is destroyed, allow further connect calls
|
|
|
|
return ret;
|
|
}
|
|
|
|
std::shared_ptr<CameraService::CameraState> CameraService::getCameraState(
|
|
const String8& cameraId) const {
|
|
std::shared_ptr<CameraState> state;
|
|
{
|
|
Mutex::Autolock lock(mCameraStatesLock);
|
|
auto iter = mCameraStates.find(cameraId);
|
|
if (iter != mCameraStates.end()) {
|
|
state = iter->second;
|
|
}
|
|
}
|
|
return state;
|
|
}
|
|
|
|
sp<CameraService::BasicClient> CameraService::removeClientLocked(const String8& cameraId) {
|
|
// Remove from active clients list
|
|
auto clientDescriptorPtr = mActiveClientManager.remove(cameraId);
|
|
if (clientDescriptorPtr == nullptr) {
|
|
ALOGW("%s: Could not evict client, no client for camera ID %s", __FUNCTION__,
|
|
cameraId.string());
|
|
return sp<BasicClient>{nullptr};
|
|
}
|
|
|
|
return clientDescriptorPtr->getValue();
|
|
}
|
|
|
|
void CameraService::doUserSwitch(const std::vector<int32_t>& newUserIds) {
|
|
// Acquire mServiceLock and prevent other clients from connecting
|
|
std::unique_ptr<AutoConditionLock> lock =
|
|
AutoConditionLock::waitAndAcquire(mServiceLockWrapper);
|
|
|
|
std::set<userid_t> newAllowedUsers;
|
|
for (size_t i = 0; i < newUserIds.size(); i++) {
|
|
if (newUserIds[i] < 0) {
|
|
ALOGE("%s: Bad user ID %d given during user switch, ignoring.",
|
|
__FUNCTION__, newUserIds[i]);
|
|
return;
|
|
}
|
|
newAllowedUsers.insert(static_cast<userid_t>(newUserIds[i]));
|
|
}
|
|
|
|
|
|
if (newAllowedUsers == mAllowedUsers) {
|
|
ALOGW("%s: Received notification of user switch with no updated user IDs.", __FUNCTION__);
|
|
return;
|
|
}
|
|
|
|
logUserSwitch(mAllowedUsers, newAllowedUsers);
|
|
|
|
mAllowedUsers = std::move(newAllowedUsers);
|
|
|
|
// Current user has switched, evict all current clients.
|
|
std::vector<sp<BasicClient>> evicted;
|
|
for (auto& i : mActiveClientManager.getAll()) {
|
|
auto clientSp = i->getValue();
|
|
|
|
if (clientSp.get() == nullptr) {
|
|
ALOGE("%s: Dead client still in mActiveClientManager.", __FUNCTION__);
|
|
continue;
|
|
}
|
|
|
|
// Don't evict clients that are still allowed.
|
|
uid_t clientUid = clientSp->getClientUid();
|
|
userid_t clientUserId = multiuser_get_user_id(clientUid);
|
|
if (mAllowedUsers.find(clientUserId) != mAllowedUsers.end()) {
|
|
continue;
|
|
}
|
|
|
|
evicted.push_back(clientSp);
|
|
|
|
String8 curTime = getFormattedCurrentTime();
|
|
|
|
ALOGE("Evicting conflicting client for camera ID %s due to user change",
|
|
i->getKey().string());
|
|
|
|
// Log the clients evicted
|
|
logEvent(String8::format("EVICT device %s client held by package %s (PID %"
|
|
PRId32 ", score %" PRId32 ", state %" PRId32 ")\n - Evicted due"
|
|
" to user switch.", i->getKey().string(),
|
|
String8{clientSp->getPackageName()}.string(),
|
|
i->getOwnerId(), i->getPriority().getScore(),
|
|
i->getPriority().getState()));
|
|
|
|
}
|
|
|
|
// Do not hold mServiceLock while disconnecting clients, but retain the condition
|
|
// blocking other clients from connecting in mServiceLockWrapper if held.
|
|
mServiceLock.unlock();
|
|
|
|
// Clear caller identity temporarily so client disconnect PID checks work correctly
|
|
int64_t token = IPCThreadState::self()->clearCallingIdentity();
|
|
|
|
for (auto& i : evicted) {
|
|
i->disconnect();
|
|
}
|
|
|
|
IPCThreadState::self()->restoreCallingIdentity(token);
|
|
|
|
// Reacquire mServiceLock
|
|
mServiceLock.lock();
|
|
}
|
|
|
|
void CameraService::logEvent(const char* event) {
|
|
String8 curTime = getFormattedCurrentTime();
|
|
Mutex::Autolock l(mLogLock);
|
|
mEventLog.add(String8::format("%s : %s", curTime.string(), event));
|
|
}
|
|
|
|
void CameraService::logDisconnected(const char* cameraId, int clientPid,
|
|
const char* clientPackage) {
|
|
// Log the clients evicted
|
|
logEvent(String8::format("DISCONNECT device %s client for package %s (PID %d)", cameraId,
|
|
clientPackage, clientPid));
|
|
}
|
|
|
|
void CameraService::logConnected(const char* cameraId, int clientPid,
|
|
const char* clientPackage) {
|
|
// Log the clients evicted
|
|
logEvent(String8::format("CONNECT device %s client for package %s (PID %d)", cameraId,
|
|
clientPackage, clientPid));
|
|
}
|
|
|
|
void CameraService::logRejected(const char* cameraId, int clientPid,
|
|
const char* clientPackage, const char* reason) {
|
|
// Log the client rejected
|
|
logEvent(String8::format("REJECT device %s client for package %s (PID %d), reason: (%s)",
|
|
cameraId, clientPackage, clientPid, reason));
|
|
}
|
|
|
|
void CameraService::logUserSwitch(const std::set<userid_t>& oldUserIds,
|
|
const std::set<userid_t>& newUserIds) {
|
|
String8 newUsers = toString(newUserIds);
|
|
String8 oldUsers = toString(oldUserIds);
|
|
if (oldUsers.size() == 0) {
|
|
oldUsers = "<None>";
|
|
}
|
|
// Log the new and old users
|
|
logEvent(String8::format("USER_SWITCH previous allowed user IDs: %s, current allowed user IDs: %s",
|
|
oldUsers.string(), newUsers.string()));
|
|
}
|
|
|
|
void CameraService::logDeviceRemoved(const char* cameraId, const char* reason) {
|
|
// Log the device removal
|
|
logEvent(String8::format("REMOVE device %s, reason: (%s)", cameraId, reason));
|
|
}
|
|
|
|
void CameraService::logDeviceAdded(const char* cameraId, const char* reason) {
|
|
// Log the device removal
|
|
logEvent(String8::format("ADD device %s, reason: (%s)", cameraId, reason));
|
|
}
|
|
|
|
void CameraService::logClientDied(int clientPid, const char* reason) {
|
|
// Log the device removal
|
|
logEvent(String8::format("DIED client(s) with PID %d, reason: (%s)", clientPid, reason));
|
|
}
|
|
|
|
void CameraService::logServiceError(const char* msg, int errorCode) {
|
|
String8 curTime = getFormattedCurrentTime();
|
|
logEvent(String8::format("SERVICE ERROR: %s : %d (%s)", msg, errorCode, strerror(-errorCode)));
|
|
}
|
|
|
|
status_t CameraService::onTransact(uint32_t code, const Parcel& data, Parcel* reply,
|
|
uint32_t flags) {
|
|
|
|
const int pid = getCallingPid();
|
|
const int selfPid = getpid();
|
|
|
|
// Permission checks
|
|
switch (code) {
|
|
case BnCameraService::NOTIFYSYSTEMEVENT: {
|
|
if (pid != selfPid) {
|
|
// Ensure we're being called by system_server, or similar process with
|
|
// permissions to notify the camera service about system events
|
|
if (!checkCallingPermission(
|
|
String16("android.permission.CAMERA_SEND_SYSTEM_EVENTS"))) {
|
|
const int uid = getCallingUid();
|
|
ALOGE("Permission Denial: cannot send updates to camera service about system"
|
|
" events from pid=%d, uid=%d", pid, uid);
|
|
return PERMISSION_DENIED;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
return BnCameraService::onTransact(code, data, reply, flags);
|
|
}
|
|
|
|
// We share the media players for shutter and recording sound for all clients.
|
|
// A reference count is kept to determine when we will actually release the
|
|
// media players.
|
|
|
|
MediaPlayer* CameraService::newMediaPlayer(const char *file) {
|
|
MediaPlayer* mp = new MediaPlayer();
|
|
if (mp->setDataSource(NULL /* httpService */, file, NULL) == NO_ERROR) {
|
|
mp->setAudioStreamType(AUDIO_STREAM_ENFORCED_AUDIBLE);
|
|
mp->prepare();
|
|
} else {
|
|
ALOGE("Failed to load CameraService sounds: %s", file);
|
|
return NULL;
|
|
}
|
|
return mp;
|
|
}
|
|
|
|
void CameraService::loadSound() {
|
|
ATRACE_CALL();
|
|
|
|
Mutex::Autolock lock(mSoundLock);
|
|
LOG1("CameraService::loadSound ref=%d", mSoundRef);
|
|
if (mSoundRef++) return;
|
|
|
|
mSoundPlayer[SOUND_SHUTTER] = newMediaPlayer("/system/media/audio/ui/camera_click.ogg");
|
|
mSoundPlayer[SOUND_RECORDING_START] = newMediaPlayer("/system/media/audio/ui/VideoRecord.ogg");
|
|
mSoundPlayer[SOUND_RECORDING_STOP] = newMediaPlayer("/system/media/audio/ui/VideoStop.ogg");
|
|
}
|
|
|
|
void CameraService::releaseSound() {
|
|
Mutex::Autolock lock(mSoundLock);
|
|
LOG1("CameraService::releaseSound ref=%d", mSoundRef);
|
|
if (--mSoundRef) return;
|
|
|
|
for (int i = 0; i < NUM_SOUNDS; i++) {
|
|
if (mSoundPlayer[i] != 0) {
|
|
mSoundPlayer[i]->disconnect();
|
|
mSoundPlayer[i].clear();
|
|
}
|
|
}
|
|
}
|
|
|
|
void CameraService::playSound(sound_kind kind) {
|
|
ATRACE_CALL();
|
|
|
|
LOG1("playSound(%d)", kind);
|
|
Mutex::Autolock lock(mSoundLock);
|
|
sp<MediaPlayer> player = mSoundPlayer[kind];
|
|
if (player != 0) {
|
|
player->seekTo(0);
|
|
player->start();
|
|
}
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
CameraService::Client::Client(const sp<CameraService>& cameraService,
|
|
const sp<ICameraClient>& cameraClient,
|
|
const String16& clientPackageName,
|
|
const String8& cameraIdStr, int cameraFacing,
|
|
int clientPid, uid_t clientUid,
|
|
int servicePid) :
|
|
CameraService::BasicClient(cameraService,
|
|
IInterface::asBinder(cameraClient),
|
|
clientPackageName,
|
|
cameraIdStr, cameraFacing,
|
|
clientPid, clientUid,
|
|
servicePid),
|
|
mCameraId(CameraService::cameraIdToInt(cameraIdStr))
|
|
{
|
|
int callingPid = getCallingPid();
|
|
LOG1("Client::Client E (pid %d, id %d)", callingPid, mCameraId);
|
|
|
|
mRemoteCallback = cameraClient;
|
|
|
|
cameraService->loadSound();
|
|
|
|
LOG1("Client::Client X (pid %d, id %d)", callingPid, mCameraId);
|
|
}
|
|
|
|
// tear down the client
|
|
CameraService::Client::~Client() {
|
|
ALOGV("~Client");
|
|
mDestructionStarted = true;
|
|
|
|
sCameraService->releaseSound();
|
|
// unconditionally disconnect. function is idempotent
|
|
Client::disconnect();
|
|
}
|
|
|
|
sp<CameraService> CameraService::BasicClient::BasicClient::sCameraService;
|
|
|
|
CameraService::BasicClient::BasicClient(const sp<CameraService>& cameraService,
|
|
const sp<IBinder>& remoteCallback,
|
|
const String16& clientPackageName,
|
|
const String8& cameraIdStr, int cameraFacing,
|
|
int clientPid, uid_t clientUid,
|
|
int servicePid):
|
|
mCameraIdStr(cameraIdStr), mCameraFacing(cameraFacing),
|
|
mClientPackageName(clientPackageName), mClientPid(clientPid), mClientUid(clientUid),
|
|
mServicePid(servicePid),
|
|
mDisconnected(false),
|
|
mRemoteBinder(remoteCallback)
|
|
{
|
|
if (sCameraService == nullptr) {
|
|
sCameraService = cameraService;
|
|
}
|
|
mOpsActive = false;
|
|
mDestructionStarted = false;
|
|
|
|
// In some cases the calling code has no access to the package it runs under.
|
|
// For example, NDK camera API.
|
|
// In this case we will get the packages for the calling UID and pick the first one
|
|
// for attributing the app op. This will work correctly for runtime permissions
|
|
// as for legacy apps we will toggle the app op for all packages in the UID.
|
|
// The caveat is that the operation may be attributed to the wrong package and
|
|
// stats based on app ops may be slightly off.
|
|
if (mClientPackageName.size() <= 0) {
|
|
sp<IServiceManager> sm = defaultServiceManager();
|
|
sp<IBinder> binder = sm->getService(String16(kPermissionServiceName));
|
|
if (binder == 0) {
|
|
ALOGE("Cannot get permission service");
|
|
// Leave mClientPackageName unchanged (empty) and the further interaction
|
|
// with camera will fail in BasicClient::startCameraOps
|
|
return;
|
|
}
|
|
|
|
sp<IPermissionController> permCtrl = interface_cast<IPermissionController>(binder);
|
|
Vector<String16> packages;
|
|
|
|
permCtrl->getPackagesForUid(mClientUid, packages);
|
|
|
|
if (packages.isEmpty()) {
|
|
ALOGE("No packages for calling UID");
|
|
// Leave mClientPackageName unchanged (empty) and the further interaction
|
|
// with camera will fail in BasicClient::startCameraOps
|
|
return;
|
|
}
|
|
mClientPackageName = packages[0];
|
|
}
|
|
}
|
|
|
|
CameraService::BasicClient::~BasicClient() {
|
|
ALOGV("~BasicClient");
|
|
mDestructionStarted = true;
|
|
}
|
|
|
|
binder::Status CameraService::BasicClient::disconnect() {
|
|
binder::Status res = Status::ok();
|
|
if (mDisconnected) {
|
|
return res;
|
|
}
|
|
mDisconnected = true;
|
|
|
|
sCameraService->removeByClient(this);
|
|
sCameraService->logDisconnected(mCameraIdStr, mClientPid,
|
|
String8(mClientPackageName));
|
|
|
|
sp<IBinder> remote = getRemote();
|
|
if (remote != nullptr) {
|
|
remote->unlinkToDeath(sCameraService);
|
|
}
|
|
|
|
finishCameraOps();
|
|
// Notify flashlight that a camera device is closed.
|
|
sCameraService->mFlashlight->deviceClosed(mCameraIdStr);
|
|
ALOGI("%s: Disconnected client for camera %s for PID %d", __FUNCTION__, mCameraIdStr.string(),
|
|
mClientPid);
|
|
|
|
// client shouldn't be able to call into us anymore
|
|
mClientPid = 0;
|
|
|
|
return res;
|
|
}
|
|
|
|
status_t CameraService::BasicClient::dump(int, const Vector<String16>&) {
|
|
// No dumping of clients directly over Binder,
|
|
// must go through CameraService::dump
|
|
android_errorWriteWithInfoLog(SN_EVENT_LOG_ID, "26265403",
|
|
IPCThreadState::self()->getCallingUid(), NULL, 0);
|
|
return OK;
|
|
}
|
|
|
|
String16 CameraService::BasicClient::getPackageName() const {
|
|
return mClientPackageName;
|
|
}
|
|
|
|
|
|
int CameraService::BasicClient::getClientPid() const {
|
|
return mClientPid;
|
|
}
|
|
|
|
uid_t CameraService::BasicClient::getClientUid() const {
|
|
return mClientUid;
|
|
}
|
|
|
|
bool CameraService::BasicClient::canCastToApiClient(apiLevel level) const {
|
|
// Defaults to API2.
|
|
return level == API_2;
|
|
}
|
|
|
|
status_t CameraService::BasicClient::startCameraOps() {
|
|
ATRACE_CALL();
|
|
|
|
int32_t res;
|
|
// Notify app ops that the camera is not available
|
|
mOpsCallback = new OpsCallback(this);
|
|
|
|
{
|
|
ALOGV("%s: Start camera ops, package name = %s, client UID = %d",
|
|
__FUNCTION__, String8(mClientPackageName).string(), mClientUid);
|
|
}
|
|
|
|
mAppOpsManager.startWatchingMode(AppOpsManager::OP_CAMERA,
|
|
mClientPackageName, mOpsCallback);
|
|
res = mAppOpsManager.startOp(AppOpsManager::OP_CAMERA,
|
|
mClientUid, mClientPackageName);
|
|
|
|
if (res == AppOpsManager::MODE_ERRORED) {
|
|
ALOGI("Camera %s: Access for \"%s\" has been revoked",
|
|
mCameraIdStr.string(), String8(mClientPackageName).string());
|
|
return PERMISSION_DENIED;
|
|
}
|
|
|
|
if (res == AppOpsManager::MODE_IGNORED) {
|
|
ALOGI("Camera %s: Access for \"%s\" has been restricted",
|
|
mCameraIdStr.string(), String8(mClientPackageName).string());
|
|
// Return the same error as for device policy manager rejection
|
|
return -EACCES;
|
|
}
|
|
|
|
mOpsActive = true;
|
|
|
|
// Transition device availability listeners from PRESENT -> NOT_AVAILABLE
|
|
sCameraService->updateStatus(StatusInternal::NOT_AVAILABLE, mCameraIdStr);
|
|
|
|
// Transition device state to OPEN
|
|
sCameraService->updateProxyDeviceState(ICameraServiceProxy::CAMERA_STATE_OPEN,
|
|
mCameraIdStr, mCameraFacing, mClientPackageName);
|
|
|
|
return OK;
|
|
}
|
|
|
|
status_t CameraService::BasicClient::finishCameraOps() {
|
|
ATRACE_CALL();
|
|
|
|
// Check if startCameraOps succeeded, and if so, finish the camera op
|
|
if (mOpsActive) {
|
|
// Notify app ops that the camera is available again
|
|
mAppOpsManager.finishOp(AppOpsManager::OP_CAMERA, mClientUid,
|
|
mClientPackageName);
|
|
mOpsActive = false;
|
|
|
|
std::initializer_list<StatusInternal> rejected = {StatusInternal::PRESENT,
|
|
StatusInternal::ENUMERATING};
|
|
|
|
// Transition to PRESENT if the camera is not in either of the rejected states
|
|
sCameraService->updateStatus(StatusInternal::PRESENT,
|
|
mCameraIdStr, rejected);
|
|
|
|
// Transition device state to CLOSED
|
|
sCameraService->updateProxyDeviceState(ICameraServiceProxy::CAMERA_STATE_CLOSED,
|
|
mCameraIdStr, mCameraFacing, mClientPackageName);
|
|
}
|
|
// Always stop watching, even if no camera op is active
|
|
if (mOpsCallback != NULL) {
|
|
mAppOpsManager.stopWatchingMode(mOpsCallback);
|
|
}
|
|
mOpsCallback.clear();
|
|
|
|
return OK;
|
|
}
|
|
|
|
void CameraService::BasicClient::opChanged(int32_t op, const String16& packageName) {
|
|
ATRACE_CALL();
|
|
|
|
String8 name(packageName);
|
|
String8 myName(mClientPackageName);
|
|
|
|
if (op != AppOpsManager::OP_CAMERA) {
|
|
ALOGW("Unexpected app ops notification received: %d", op);
|
|
return;
|
|
}
|
|
|
|
int32_t res;
|
|
res = mAppOpsManager.checkOp(AppOpsManager::OP_CAMERA,
|
|
mClientUid, mClientPackageName);
|
|
ALOGV("checkOp returns: %d, %s ", res,
|
|
res == AppOpsManager::MODE_ALLOWED ? "ALLOWED" :
|
|
res == AppOpsManager::MODE_IGNORED ? "IGNORED" :
|
|
res == AppOpsManager::MODE_ERRORED ? "ERRORED" :
|
|
"UNKNOWN");
|
|
|
|
if (res != AppOpsManager::MODE_ALLOWED) {
|
|
ALOGI("Camera %s: Access for \"%s\" revoked", mCameraIdStr.string(),
|
|
myName.string());
|
|
// Reset the client PID to allow server-initiated disconnect,
|
|
// and to prevent further calls by client.
|
|
mClientPid = getCallingPid();
|
|
CaptureResultExtras resultExtras; // a dummy result (invalid)
|
|
notifyError(hardware::camera2::ICameraDeviceCallbacks::ERROR_CAMERA_SERVICE, resultExtras);
|
|
disconnect();
|
|
}
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void CameraService::Client::notifyError(int32_t errorCode,
|
|
const CaptureResultExtras& resultExtras) {
|
|
(void) errorCode;
|
|
(void) resultExtras;
|
|
if (mRemoteCallback != NULL) {
|
|
mRemoteCallback->notifyCallback(CAMERA_MSG_ERROR, CAMERA_ERROR_RELEASED, 0);
|
|
} else {
|
|
ALOGE("mRemoteCallback is NULL!!");
|
|
}
|
|
}
|
|
|
|
// NOTE: function is idempotent
|
|
binder::Status CameraService::Client::disconnect() {
|
|
ALOGV("Client::disconnect");
|
|
return BasicClient::disconnect();
|
|
}
|
|
|
|
bool CameraService::Client::canCastToApiClient(apiLevel level) const {
|
|
return level == API_1;
|
|
}
|
|
|
|
CameraService::Client::OpsCallback::OpsCallback(wp<BasicClient> client):
|
|
mClient(client) {
|
|
}
|
|
|
|
void CameraService::Client::OpsCallback::opChanged(int32_t op,
|
|
const String16& packageName) {
|
|
sp<BasicClient> client = mClient.promote();
|
|
if (client != NULL) {
|
|
client->opChanged(op, packageName);
|
|
}
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// CameraState
|
|
// ----------------------------------------------------------------------------
|
|
|
|
CameraService::CameraState::CameraState(const String8& id, int cost,
|
|
const std::set<String8>& conflicting) : mId(id),
|
|
mStatus(StatusInternal::PRESENT), mCost(cost), mConflicting(conflicting) {}
|
|
|
|
CameraService::CameraState::~CameraState() {}
|
|
|
|
CameraService::StatusInternal CameraService::CameraState::getStatus() const {
|
|
Mutex::Autolock lock(mStatusLock);
|
|
return mStatus;
|
|
}
|
|
|
|
CameraParameters CameraService::CameraState::getShimParams() const {
|
|
return mShimParams;
|
|
}
|
|
|
|
void CameraService::CameraState::setShimParams(const CameraParameters& params) {
|
|
mShimParams = params;
|
|
}
|
|
|
|
int CameraService::CameraState::getCost() const {
|
|
return mCost;
|
|
}
|
|
|
|
std::set<String8> CameraService::CameraState::getConflicting() const {
|
|
return mConflicting;
|
|
}
|
|
|
|
String8 CameraService::CameraState::getId() const {
|
|
return mId;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// ClientEventListener
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void CameraService::ClientEventListener::onClientAdded(
|
|
const resource_policy::ClientDescriptor<String8,
|
|
sp<CameraService::BasicClient>>& descriptor) {
|
|
const auto& basicClient = descriptor.getValue();
|
|
if (basicClient.get() != nullptr) {
|
|
BatteryNotifier& notifier(BatteryNotifier::getInstance());
|
|
notifier.noteStartCamera(descriptor.getKey(),
|
|
static_cast<int>(basicClient->getClientUid()));
|
|
}
|
|
}
|
|
|
|
void CameraService::ClientEventListener::onClientRemoved(
|
|
const resource_policy::ClientDescriptor<String8,
|
|
sp<CameraService::BasicClient>>& descriptor) {
|
|
const auto& basicClient = descriptor.getValue();
|
|
if (basicClient.get() != nullptr) {
|
|
BatteryNotifier& notifier(BatteryNotifier::getInstance());
|
|
notifier.noteStopCamera(descriptor.getKey(),
|
|
static_cast<int>(basicClient->getClientUid()));
|
|
}
|
|
}
|
|
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// CameraClientManager
|
|
// ----------------------------------------------------------------------------
|
|
|
|
CameraService::CameraClientManager::CameraClientManager() {
|
|
setListener(std::make_shared<ClientEventListener>());
|
|
}
|
|
|
|
CameraService::CameraClientManager::~CameraClientManager() {}
|
|
|
|
sp<CameraService::BasicClient> CameraService::CameraClientManager::getCameraClient(
|
|
const String8& id) const {
|
|
auto descriptor = get(id);
|
|
if (descriptor == nullptr) {
|
|
return sp<BasicClient>{nullptr};
|
|
}
|
|
return descriptor->getValue();
|
|
}
|
|
|
|
String8 CameraService::CameraClientManager::toString() const {
|
|
auto all = getAll();
|
|
String8 ret("[");
|
|
bool hasAny = false;
|
|
for (auto& i : all) {
|
|
hasAny = true;
|
|
String8 key = i->getKey();
|
|
int32_t cost = i->getCost();
|
|
int32_t pid = i->getOwnerId();
|
|
int32_t score = i->getPriority().getScore();
|
|
int32_t state = i->getPriority().getState();
|
|
auto conflicting = i->getConflicting();
|
|
auto clientSp = i->getValue();
|
|
String8 packageName;
|
|
userid_t clientUserId = 0;
|
|
if (clientSp.get() != nullptr) {
|
|
packageName = String8{clientSp->getPackageName()};
|
|
uid_t clientUid = clientSp->getClientUid();
|
|
clientUserId = multiuser_get_user_id(clientUid);
|
|
}
|
|
ret.appendFormat("\n(Camera ID: %s, Cost: %" PRId32 ", PID: %" PRId32 ", Score: %"
|
|
PRId32 ", State: %" PRId32, key.string(), cost, pid, score, state);
|
|
|
|
if (clientSp.get() != nullptr) {
|
|
ret.appendFormat("User Id: %d, ", clientUserId);
|
|
}
|
|
if (packageName.size() != 0) {
|
|
ret.appendFormat("Client Package Name: %s", packageName.string());
|
|
}
|
|
|
|
ret.append(", Conflicting Client Devices: {");
|
|
for (auto& j : conflicting) {
|
|
ret.appendFormat("%s, ", j.string());
|
|
}
|
|
ret.append("})");
|
|
}
|
|
if (hasAny) ret.append("\n");
|
|
ret.append("]\n");
|
|
return ret;
|
|
}
|
|
|
|
CameraService::DescriptorPtr CameraService::CameraClientManager::makeClientDescriptor(
|
|
const String8& key, const sp<BasicClient>& value, int32_t cost,
|
|
const std::set<String8>& conflictingKeys, int32_t score, int32_t ownerId,
|
|
int32_t state) {
|
|
|
|
return std::make_shared<resource_policy::ClientDescriptor<String8, sp<BasicClient>>>(
|
|
key, value, cost, conflictingKeys, score, ownerId, state);
|
|
}
|
|
|
|
CameraService::DescriptorPtr CameraService::CameraClientManager::makeClientDescriptor(
|
|
const sp<BasicClient>& value, const CameraService::DescriptorPtr& partial) {
|
|
return makeClientDescriptor(partial->getKey(), value, partial->getCost(),
|
|
partial->getConflicting(), partial->getPriority().getScore(),
|
|
partial->getOwnerId(), partial->getPriority().getState());
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
static const int kDumpLockRetries = 50;
|
|
static const int kDumpLockSleep = 60000;
|
|
|
|
static bool tryLock(Mutex& mutex)
|
|
{
|
|
bool locked = false;
|
|
for (int i = 0; i < kDumpLockRetries; ++i) {
|
|
if (mutex.tryLock() == NO_ERROR) {
|
|
locked = true;
|
|
break;
|
|
}
|
|
usleep(kDumpLockSleep);
|
|
}
|
|
return locked;
|
|
}
|
|
|
|
status_t CameraService::dump(int fd, const Vector<String16>& args) {
|
|
ATRACE_CALL();
|
|
|
|
if (checkCallingPermission(String16("android.permission.DUMP")) == false) {
|
|
dprintf(fd, "Permission Denial: can't dump CameraService from pid=%d, uid=%d\n",
|
|
getCallingPid(),
|
|
getCallingUid());
|
|
return NO_ERROR;
|
|
}
|
|
bool locked = tryLock(mServiceLock);
|
|
// failed to lock - CameraService is probably deadlocked
|
|
if (!locked) {
|
|
dprintf(fd, "!! CameraService may be deadlocked !!\n");
|
|
}
|
|
|
|
if (!mInitialized) {
|
|
dprintf(fd, "!! No camera HAL available !!\n");
|
|
|
|
// Dump event log for error information
|
|
dumpEventLog(fd);
|
|
|
|
if (locked) mServiceLock.unlock();
|
|
return NO_ERROR;
|
|
}
|
|
dprintf(fd, "\n== Service global info: ==\n\n");
|
|
dprintf(fd, "Number of camera devices: %d\n", mNumberOfCameras);
|
|
dprintf(fd, "Number of normal camera devices: %d\n", mNumberOfNormalCameras);
|
|
String8 activeClientString = mActiveClientManager.toString();
|
|
dprintf(fd, "Active Camera Clients:\n%s", activeClientString.string());
|
|
dprintf(fd, "Allowed user IDs: %s\n", toString(mAllowedUsers).string());
|
|
|
|
dumpEventLog(fd);
|
|
|
|
bool stateLocked = tryLock(mCameraStatesLock);
|
|
if (!stateLocked) {
|
|
dprintf(fd, "CameraStates in use, may be deadlocked\n");
|
|
}
|
|
|
|
for (auto& state : mCameraStates) {
|
|
String8 cameraId = state.first;
|
|
|
|
dprintf(fd, "== Camera device %s dynamic info: ==\n", cameraId.string());
|
|
|
|
CameraParameters p = state.second->getShimParams();
|
|
if (!p.isEmpty()) {
|
|
dprintf(fd, " Camera1 API shim is using parameters:\n ");
|
|
p.dump(fd, args);
|
|
}
|
|
|
|
auto clientDescriptor = mActiveClientManager.get(cameraId);
|
|
if (clientDescriptor != nullptr) {
|
|
dprintf(fd, " Device %s is open. Client instance dump:\n",
|
|
cameraId.string());
|
|
dprintf(fd, " Client priority score: %d state: %d\n",
|
|
clientDescriptor->getPriority().getScore(),
|
|
clientDescriptor->getPriority().getState());
|
|
dprintf(fd, " Client PID: %d\n", clientDescriptor->getOwnerId());
|
|
|
|
auto client = clientDescriptor->getValue();
|
|
dprintf(fd, " Client package: %s\n",
|
|
String8(client->getPackageName()).string());
|
|
|
|
client->dumpClient(fd, args);
|
|
} else {
|
|
dprintf(fd, " Device %s is closed, no client instance\n",
|
|
cameraId.string());
|
|
}
|
|
|
|
}
|
|
|
|
if (stateLocked) mCameraStatesLock.unlock();
|
|
|
|
if (locked) mServiceLock.unlock();
|
|
|
|
mCameraProviderManager->dump(fd, args);
|
|
|
|
dprintf(fd, "\n== Vendor tags: ==\n\n");
|
|
|
|
sp<VendorTagDescriptor> desc = VendorTagDescriptor::getGlobalVendorTagDescriptor();
|
|
if (desc == NULL) {
|
|
sp<VendorTagDescriptorCache> cache =
|
|
VendorTagDescriptorCache::getGlobalVendorTagCache();
|
|
if (cache == NULL) {
|
|
dprintf(fd, "No vendor tags.\n");
|
|
} else {
|
|
cache->dump(fd, /*verbosity*/2, /*indentation*/2);
|
|
}
|
|
} else {
|
|
desc->dump(fd, /*verbosity*/2, /*indentation*/2);
|
|
}
|
|
|
|
// Dump camera traces if there were any
|
|
dprintf(fd, "\n");
|
|
camera3::CameraTraces::dump(fd, args);
|
|
|
|
// Process dump arguments, if any
|
|
int n = args.size();
|
|
String16 verboseOption("-v");
|
|
String16 unreachableOption("--unreachable");
|
|
for (int i = 0; i < n; i++) {
|
|
if (args[i] == verboseOption) {
|
|
// change logging level
|
|
if (i + 1 >= n) continue;
|
|
String8 levelStr(args[i+1]);
|
|
int level = atoi(levelStr.string());
|
|
dprintf(fd, "\nSetting log level to %d.\n", level);
|
|
setLogLevel(level);
|
|
} else if (args[i] == unreachableOption) {
|
|
// Dump memory analysis
|
|
// TODO - should limit be an argument parameter?
|
|
UnreachableMemoryInfo info;
|
|
bool success = GetUnreachableMemory(info, /*limit*/ 10000);
|
|
if (!success) {
|
|
dprintf(fd, "\n== Unable to dump unreachable memory. "
|
|
"Try disabling SELinux enforcement. ==\n");
|
|
} else {
|
|
dprintf(fd, "\n== Dumping unreachable memory: ==\n");
|
|
std::string s = info.ToString(/*log_contents*/ true);
|
|
write(fd, s.c_str(), s.size());
|
|
}
|
|
}
|
|
}
|
|
return NO_ERROR;
|
|
}
|
|
|
|
void CameraService::dumpEventLog(int fd) {
|
|
dprintf(fd, "\n== Camera service events log (most recent at top): ==\n");
|
|
|
|
Mutex::Autolock l(mLogLock);
|
|
for (const auto& msg : mEventLog) {
|
|
dprintf(fd, " %s\n", msg.string());
|
|
}
|
|
|
|
if (mEventLog.size() == DEFAULT_EVENT_LOG_LENGTH) {
|
|
dprintf(fd, " ...\n");
|
|
} else if (mEventLog.size() == 0) {
|
|
dprintf(fd, " [no events yet]\n");
|
|
}
|
|
dprintf(fd, "\n");
|
|
}
|
|
|
|
void CameraService::handleTorchClientBinderDied(const wp<IBinder> &who) {
|
|
Mutex::Autolock al(mTorchClientMapMutex);
|
|
for (size_t i = 0; i < mTorchClientMap.size(); i++) {
|
|
if (mTorchClientMap[i] == who) {
|
|
// turn off the torch mode that was turned on by dead client
|
|
String8 cameraId = mTorchClientMap.keyAt(i);
|
|
status_t res = mFlashlight->setTorchMode(cameraId, false);
|
|
if (res) {
|
|
ALOGE("%s: torch client died but couldn't turn off torch: "
|
|
"%s (%d)", __FUNCTION__, strerror(-res), res);
|
|
return;
|
|
}
|
|
mTorchClientMap.removeItemsAt(i);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*virtual*/void CameraService::binderDied(const wp<IBinder> &who) {
|
|
|
|
/**
|
|
* While tempting to promote the wp<IBinder> into a sp, it's actually not supported by the
|
|
* binder driver
|
|
*/
|
|
|
|
logClientDied(getCallingPid(), String8("Binder died unexpectedly"));
|
|
|
|
// check torch client
|
|
handleTorchClientBinderDied(who);
|
|
|
|
// check camera device client
|
|
if(!evictClientIdByRemote(who)) {
|
|
ALOGV("%s: Java client's binder death already cleaned up (normal case)", __FUNCTION__);
|
|
return;
|
|
}
|
|
|
|
ALOGE("%s: Java client's binder died, removing it from the list of active clients",
|
|
__FUNCTION__);
|
|
}
|
|
|
|
void CameraService::updateStatus(StatusInternal status, const String8& cameraId) {
|
|
updateStatus(status, cameraId, {});
|
|
}
|
|
|
|
void CameraService::updateStatus(StatusInternal status, const String8& cameraId,
|
|
std::initializer_list<StatusInternal> rejectSourceStates) {
|
|
// Do not lock mServiceLock here or can get into a deadlock from
|
|
// connect() -> disconnect -> updateStatus
|
|
|
|
auto state = getCameraState(cameraId);
|
|
|
|
if (state == nullptr) {
|
|
ALOGW("%s: Could not update the status for %s, no such device exists", __FUNCTION__,
|
|
cameraId.string());
|
|
return;
|
|
}
|
|
|
|
// Update the status for this camera state, then send the onStatusChangedCallbacks to each
|
|
// of the listeners with both the mStatusStatus and mStatusListenerLock held
|
|
state->updateStatus(status, cameraId, rejectSourceStates, [this]
|
|
(const String8& cameraId, StatusInternal status) {
|
|
|
|
if (status != StatusInternal::ENUMERATING) {
|
|
// Update torch status if it has a flash unit.
|
|
Mutex::Autolock al(mTorchStatusMutex);
|
|
TorchModeStatus torchStatus;
|
|
if (getTorchStatusLocked(cameraId, &torchStatus) !=
|
|
NAME_NOT_FOUND) {
|
|
TorchModeStatus newTorchStatus =
|
|
status == StatusInternal::PRESENT ?
|
|
TorchModeStatus::AVAILABLE_OFF :
|
|
TorchModeStatus::NOT_AVAILABLE;
|
|
if (torchStatus != newTorchStatus) {
|
|
onTorchStatusChangedLocked(cameraId, newTorchStatus);
|
|
}
|
|
}
|
|
}
|
|
|
|
Mutex::Autolock lock(mStatusListenerLock);
|
|
|
|
for (auto& listener : mListenerList) {
|
|
listener->onStatusChanged(mapToInterface(status), String16(cameraId));
|
|
}
|
|
});
|
|
}
|
|
|
|
template<class Func>
|
|
void CameraService::CameraState::updateStatus(StatusInternal status,
|
|
const String8& cameraId,
|
|
std::initializer_list<StatusInternal> rejectSourceStates,
|
|
Func onStatusUpdatedLocked) {
|
|
Mutex::Autolock lock(mStatusLock);
|
|
StatusInternal oldStatus = mStatus;
|
|
mStatus = status;
|
|
|
|
if (oldStatus == status) {
|
|
return;
|
|
}
|
|
|
|
ALOGV("%s: Status has changed for camera ID %s from %#x to %#x", __FUNCTION__,
|
|
cameraId.string(), oldStatus, status);
|
|
|
|
if (oldStatus == StatusInternal::NOT_PRESENT &&
|
|
(status != StatusInternal::PRESENT &&
|
|
status != StatusInternal::ENUMERATING)) {
|
|
|
|
ALOGW("%s: From NOT_PRESENT can only transition into PRESENT or ENUMERATING",
|
|
__FUNCTION__);
|
|
mStatus = oldStatus;
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* Sometimes we want to conditionally do a transition.
|
|
* For example if a client disconnects, we want to go to PRESENT
|
|
* only if we weren't already in NOT_PRESENT or ENUMERATING.
|
|
*/
|
|
for (auto& rejectStatus : rejectSourceStates) {
|
|
if (oldStatus == rejectStatus) {
|
|
ALOGV("%s: Rejecting status transition for Camera ID %s, since the source "
|
|
"state was was in one of the bad states.", __FUNCTION__, cameraId.string());
|
|
mStatus = oldStatus;
|
|
return;
|
|
}
|
|
}
|
|
|
|
onStatusUpdatedLocked(cameraId, status);
|
|
}
|
|
|
|
void CameraService::updateProxyDeviceState(int newState,
|
|
const String8& cameraId, int facing, const String16& clientName) {
|
|
sp<ICameraServiceProxy> proxyBinder = getCameraServiceProxy();
|
|
if (proxyBinder == nullptr) return;
|
|
String16 id(cameraId);
|
|
proxyBinder->notifyCameraState(id, newState, facing, clientName);
|
|
}
|
|
|
|
status_t CameraService::getTorchStatusLocked(
|
|
const String8& cameraId,
|
|
TorchModeStatus *status) const {
|
|
if (!status) {
|
|
return BAD_VALUE;
|
|
}
|
|
ssize_t index = mTorchStatusMap.indexOfKey(cameraId);
|
|
if (index == NAME_NOT_FOUND) {
|
|
// invalid camera ID or the camera doesn't have a flash unit
|
|
return NAME_NOT_FOUND;
|
|
}
|
|
|
|
*status = mTorchStatusMap.valueAt(index);
|
|
return OK;
|
|
}
|
|
|
|
status_t CameraService::setTorchStatusLocked(const String8& cameraId,
|
|
TorchModeStatus status) {
|
|
ssize_t index = mTorchStatusMap.indexOfKey(cameraId);
|
|
if (index == NAME_NOT_FOUND) {
|
|
return BAD_VALUE;
|
|
}
|
|
mTorchStatusMap.editValueAt(index) = status;
|
|
|
|
return OK;
|
|
}
|
|
|
|
}; // namespace android
|