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Mathias Agopian65ab4712010-07-14 17:59:35 -07001/*
Ruben Brunkd1176ef2014-02-21 10:51:38 -08002 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
Mathias Agopian65ab4712010-07-14 17:59:35 -070016
17#define LOG_TAG "CameraService"
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -070018#define ATRACE_TAG ATRACE_TAG_CAMERA
Iliyan Malchev8951a972011-04-14 16:55:59 -070019//#define LOG_NDEBUG 0
Mathias Agopian65ab4712010-07-14 17:59:35 -070020
Ruben Brunkcc776712015-02-17 20:18:47 -080021#include <algorithm>
22#include <climits>
Mathias Agopian65ab4712010-07-14 17:59:35 -070023#include <stdio.h>
Shuzhen Wangabbcb6b2020-12-09 22:32:44 -080024#include <cstdlib>
Ruben Brunkcc776712015-02-17 20:18:47 -080025#include <cstring>
26#include <ctime>
27#include <string>
Mathias Agopian65ab4712010-07-14 17:59:35 -070028#include <sys/types.h>
Ruben Brunkcc776712015-02-17 20:18:47 -080029#include <inttypes.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070030#include <pthread.h>
Avichal Rakesh84147132021-11-11 17:47:11 -080031#include <poll.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070032
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -080033#include <android/hardware/ICamera.h>
34#include <android/hardware/ICameraClient.h>
35
Alex Deymo9c2a2c22016-08-25 11:59:14 -070036#include <android-base/macros.h>
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -080037#include <android-base/parseint.h>
Jayant Chowdharyb61526c2019-05-13 19:37:42 -070038#include <android-base/stringprintf.h>
Svet Ganova453d0d2018-01-11 15:37:58 -080039#include <binder/ActivityManager.h>
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -080040#include <binder/AppOpsManager.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070041#include <binder/IPCThreadState.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070042#include <binder/MemoryBase.h>
43#include <binder/MemoryHeapBase.h>
Svet Ganova453d0d2018-01-11 15:37:58 -080044#include <binder/PermissionController.h>
Svet Ganova453d0d2018-01-11 15:37:58 -080045#include <binder/IResultReceiver.h>
Steven Moreland89a2c5c2020-01-31 15:02:25 -080046#include <binderthreadstate/CallerUtils.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070047#include <cutils/atomic.h>
Nipun Kwatrab5ca4612010-09-11 19:31:10 -070048#include <cutils/properties.h>
Svet Ganova453d0d2018-01-11 15:37:58 -080049#include <cutils/misc.h>
Mathias Agopiandf712ea2012-02-25 18:48:35 -080050#include <gui/Surface.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070051#include <hardware/hardware.h>
Jayant Chowdharybe543d42018-08-15 13:16:14 -070052#include "hidl/HidlCameraService.h"
53#include <hidl/HidlTransportSupport.h>
Jayant Chowdharyf949ddd2019-01-29 14:34:11 -080054#include <hwbinder/IPCThreadState.h>
Eino-Ville Talvalad89821e2016-04-20 11:23:50 -070055#include <memunreachable/memunreachable.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070056#include <media/AudioSystem.h>
Andreas Huber1b86fe02014-01-29 11:13:26 -080057#include <media/IMediaHTTPService.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070058#include <media/mediaplayer.h>
Ruben Brunk99e69712015-05-26 17:25:07 -070059#include <mediautils/BatteryNotifier.h>
Steven Moreland886d7322021-04-02 04:19:45 +000060#include <processinfo/ProcessInfoService.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070061#include <utils/Errors.h>
62#include <utils/Log.h>
63#include <utils/String16.h>
Svet Ganov94ec46f2018-06-08 15:03:46 -070064#include <utils/SystemClock.h>
Ruben Brunkd1176ef2014-02-21 10:51:38 -080065#include <utils/Trace.h>
Jayant Chowdhary2bbdce42020-01-12 14:55:41 -080066#include <utils/CallStack.h>
Chien-Yu Chen98a668f2015-12-18 14:10:33 -080067#include <private/android_filesystem_config.h>
Ruben Brunkd1176ef2014-02-21 10:51:38 -080068#include <system/camera_vendor_tags.h>
Ruben Brunkb2119af2014-05-09 19:57:56 -070069#include <system/camera_metadata.h>
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -080070
Ruben Brunkb2119af2014-05-09 19:57:56 -070071#include <system/camera.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070072
73#include "CameraService.h"
Eino-Ville Talvala7b82efe2013-07-25 17:12:35 -070074#include "api1/Camera2Client.h"
Eino-Ville Talvala7b82efe2013-07-25 17:12:35 -070075#include "api2/CameraDeviceClient.h"
Igor Murashkinff3e31d2013-10-23 16:40:06 -070076#include "utils/CameraTraces.h"
Emilian Peevbd8c5032018-02-14 23:05:40 +000077#include "utils/TagMonitor.h"
Jayant Chowdhary12361932018-08-27 14:46:13 -070078#include "utils/CameraThreadState.h"
Shuzhen Wang316781a2020-08-18 18:11:01 -070079#include "utils/CameraServiceProxyWrapper.h"
Mathias Agopian65ab4712010-07-14 17:59:35 -070080
Yin-Chia Yeh0dea57f2015-12-09 16:46:07 -080081namespace {
82 const char* kPermissionServiceName = "permission";
83}; // namespace anonymous
84
Mathias Agopian65ab4712010-07-14 17:59:35 -070085namespace android {
86
Jayant Chowdharyb61526c2019-05-13 19:37:42 -070087using base::StringPrintf;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -080088using binder::Status;
Austin Borgerea931242021-12-13 23:10:41 +000089using namespace camera3;
Jayant Chowdharybe543d42018-08-15 13:16:14 -070090using frameworks::cameraservice::service::V2_0::implementation::HidlCameraService;
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -080091using hardware::ICamera;
92using hardware::ICameraClient;
93using hardware::ICameraServiceListener;
Cliff Wud8cae102021-03-11 01:37:42 +080094using hardware::camera2::ICameraInjectionCallback;
95using hardware::camera2::ICameraInjectionSession;
Jayant Chowdhary2bbdce42020-01-12 14:55:41 -080096using hardware::camera2::utils::CameraIdAndSessionConfiguration;
97using hardware::camera2::utils::ConcurrentCameraIdCombination;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -080098
Mathias Agopian65ab4712010-07-14 17:59:35 -070099// ----------------------------------------------------------------------------
100// Logging support -- this is for debugging only
101// Use "adb shell dumpsys media.camera -v 1" to change it.
Eino-Ville Talvala5e08d602012-05-16 14:59:25 -0700102volatile int32_t gLogLevel = 0;
Mathias Agopian65ab4712010-07-14 17:59:35 -0700103
Steve Blockb8a80522011-12-20 16:23:08 +0000104#define LOG1(...) ALOGD_IF(gLogLevel >= 1, __VA_ARGS__);
105#define LOG2(...) ALOGD_IF(gLogLevel >= 2, __VA_ARGS__);
Mathias Agopian65ab4712010-07-14 17:59:35 -0700106
107static void setLogLevel(int level) {
108 android_atomic_write(level, &gLogLevel);
109}
110
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800111// Convenience methods for constructing binder::Status objects for error returns
112
113#define STATUS_ERROR(errorCode, errorString) \
114 binder::Status::fromServiceSpecificError(errorCode, \
115 String8::format("%s:%d: %s", __FUNCTION__, __LINE__, errorString))
116
117#define STATUS_ERROR_FMT(errorCode, errorString, ...) \
118 binder::Status::fromServiceSpecificError(errorCode, \
119 String8::format("%s:%d: " errorString, __FUNCTION__, __LINE__, \
120 __VA_ARGS__))
121
Mathias Agopian65ab4712010-07-14 17:59:35 -0700122// ----------------------------------------------------------------------------
123
Jayant Chowdhary5216b212019-07-17 09:26:23 -0700124static const String16 sDumpPermission("android.permission.DUMP");
Svet Ganova453d0d2018-01-11 15:37:58 -0800125static const String16 sManageCameraPermission("android.permission.MANAGE_CAMERA");
Jayant Chowdhary5216b212019-07-17 09:26:23 -0700126static const String16 sCameraPermission("android.permission.CAMERA");
127static const String16 sSystemCameraPermission("android.permission.SYSTEM_CAMERA");
128static const String16
129 sCameraSendSystemEventsPermission("android.permission.CAMERA_SEND_SYSTEM_EVENTS");
Shuzhen Wang695044d2020-03-06 09:02:23 -0800130static const String16 sCameraOpenCloseListenerPermission(
131 "android.permission.CAMERA_OPEN_CLOSE_LISTENER");
Cliff Wud8cae102021-03-11 01:37:42 +0800132static const String16
133 sCameraInjectExternalCameraPermission("android.permission.CAMERA_INJECT_EXTERNAL_CAMERA");
Rucha Katakwardf223072021-06-15 10:21:00 -0700134const char *sFileName = "lastOpenSessionDumpFile";
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -0800135static constexpr int32_t kSystemNativeClientScore = resource_policy::PERCEPTIBLE_APP_ADJ;
136static constexpr int32_t kSystemNativeClientState =
137 ActivityManager::PROCESS_STATE_PERSISTENT_UI;
Eino-Ville Talvala7c602c32021-03-20 17:00:18 -0700138
Emilian Peevb2bc5a42019-11-20 16:02:14 -0800139const String8 CameraService::kOfflineDevice("offline-");
Avichal Rakesh7fbc3982021-10-20 04:35:03 -0700140const String16 CameraService::kWatchAllClientsFlag("all");
Jayant Chowdharyc578a502019-05-08 10:57:54 -0700141
Rucha Katakward9ea6452021-05-06 11:57:16 -0700142// Set to keep track of logged service error events.
143static std::set<String8> sServiceErrorEventSet;
144
Eino-Ville Talvala49c97052016-01-12 14:29:40 -0800145CameraService::CameraService() :
146 mEventLog(DEFAULT_EVENT_LOG_LENGTH),
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -0800147 mNumberOfCameras(0),
Jayant Chowdhary847947d2019-08-30 18:02:59 -0700148 mNumberOfCamerasWithoutSystemCamera(0),
Yin-Chia Yehdba03232019-08-19 15:54:28 -0700149 mSoundRef(0), mInitialized(false),
150 mAudioRestriction(hardware::camera2::ICameraDeviceUser::AUDIO_RESTRICTION_NONE) {
Steve Blockdf64d152012-01-04 20:05:49 +0000151 ALOGI("CameraService started (pid=%d)", getpid());
Ruben Brunkcc776712015-02-17 20:18:47 -0800152 mServiceLockWrapper = std::make_shared<WaitableMutexWrapper>(&mServiceLock);
Rucha Katakwardf223072021-06-15 10:21:00 -0700153 mMemFd = memfd_create(sFileName, MFD_ALLOW_SEALING);
154 if (mMemFd == -1) {
155 ALOGE("%s: Error while creating the file: %s", __FUNCTION__, sFileName);
156 }
Mathias Agopian65ab4712010-07-14 17:59:35 -0700157}
158
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -0800159// The word 'System' here does not refer to clients only on the system
160// partition. They just need to have a android system uid.
161static bool doesClientHaveSystemUid() {
162 return (CameraThreadState::getCallingUid() < AID_APP_START);
163}
164
Iliyan Malchev8951a972011-04-14 16:55:59 -0700165void CameraService::onFirstRef()
166{
Jayant Chowdhary32ced0e2021-04-09 14:00:22 -0700167
Ruben Brunkcc776712015-02-17 20:18:47 -0800168 ALOGI("CameraService process starting");
Igor Murashkin634a5152013-02-20 17:15:11 -0800169
Iliyan Malchev8951a972011-04-14 16:55:59 -0700170 BnCameraService::onFirstRef();
171
Ruben Brunk99e69712015-05-26 17:25:07 -0700172 // Update battery life tracking if service is restarting
173 BatteryNotifier& notifier(BatteryNotifier::getInstance());
174 notifier.noteResetCamera();
175 notifier.noteResetFlashlight();
176
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -0800177 status_t res = INVALID_OPERATION;
Eino-Ville Talvala9cbbc832017-01-23 15:39:53 -0800178
Emilian Peevf53f66e2017-04-11 14:29:43 +0100179 res = enumerateProviders();
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -0800180 if (res == OK) {
181 mInitialized = true;
182 }
183
Svet Ganova453d0d2018-01-11 15:37:58 -0800184 mUidPolicy = new UidPolicy(this);
185 mUidPolicy->registerSelf();
Michael Grooverd1d435a2018-12-18 17:39:42 -0800186 mSensorPrivacyPolicy = new SensorPrivacyPolicy(this);
187 mSensorPrivacyPolicy->registerSelf();
Cliff Wud8cae102021-03-11 01:37:42 +0800188 mInjectionStatusListener = new InjectionStatusListener(this);
Yin-Chia Yehdba03232019-08-19 15:54:28 -0700189 mAppOps.setCameraAudioRestriction(mAudioRestriction);
Jayant Chowdharybe543d42018-08-15 13:16:14 -0700190 sp<HidlCameraService> hcs = HidlCameraService::getInstance(this);
191 if (hcs->registerAsService() != android::OK) {
192 ALOGE("%s: Failed to register default android.frameworks.cameraservice.service@1.0",
193 __FUNCTION__);
194 }
Shuzhen Wang24b44152019-09-20 10:38:11 -0700195
196 // This needs to be last call in this function, so that it's as close to
197 // ServiceManager::addService() as possible.
Shuzhen Wang316781a2020-08-18 18:11:01 -0700198 CameraServiceProxyWrapper::pingCameraServiceProxy();
Shuzhen Wang24b44152019-09-20 10:38:11 -0700199 ALOGI("CameraService pinged cameraservice proxy");
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -0800200}
201
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -0800202status_t CameraService::enumerateProviders() {
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -0800203 status_t res;
Emilian Peevaee727d2017-05-04 16:35:48 +0100204
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -0800205 std::vector<std::string> deviceIds;
206 {
207 Mutex::Autolock l(mServiceLock);
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -0800208
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -0800209 if (nullptr == mCameraProviderManager.get()) {
210 mCameraProviderManager = new CameraProviderManager();
211 res = mCameraProviderManager->initialize(this);
212 if (res != OK) {
213 ALOGE("%s: Unable to initialize camera provider manager: %s (%d)",
214 __FUNCTION__, strerror(-res), res);
Rucha Katakward9ea6452021-05-06 11:57:16 -0700215 logServiceError(String8::format("Unable to initialize camera provider manager"),
216 ERROR_DISCONNECTED);
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -0800217 return res;
Emilian Peevaee727d2017-05-04 16:35:48 +0100218 }
219 }
220
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -0800221
222 // Setup vendor tags before we call get_camera_info the first time
223 // because HAL might need to setup static vendor keys in get_camera_info
224 // TODO: maybe put this into CameraProviderManager::initialize()?
225 mCameraProviderManager->setUpVendorTags();
226
227 if (nullptr == mFlashlight.get()) {
228 mFlashlight = new CameraFlashlight(mCameraProviderManager, this);
Yin-Chia Yeh92e33212017-05-24 15:54:15 -0700229 }
230
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -0800231 res = mFlashlight->findFlashUnits();
232 if (res != OK) {
233 ALOGE("Failed to enumerate flash units: %s (%d)", strerror(-res), res);
234 }
235
236 deviceIds = mCameraProviderManager->getCameraDeviceIds();
237 }
238
239
240 for (auto& cameraId : deviceIds) {
241 String8 id8 = String8(cameraId.c_str());
Shuzhen Wang6ba3f5e2018-11-20 10:04:08 -0800242 if (getCameraState(id8) == nullptr) {
243 onDeviceStatusChanged(id8, CameraDeviceStatus::PRESENT);
244 }
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -0800245 }
246
Shuzhen Wangb38b53f2021-07-15 12:46:09 -0700247 // Derive primary rear/front cameras, and filter their charactierstics.
248 // This needs to be done after all cameras are enumerated and camera ids are sorted.
Shuzhen Wangd4abdf72021-05-28 11:22:50 -0700249 if (SessionConfigurationUtils::IS_PERF_CLASS) {
Shuzhen Wangb38b53f2021-07-15 12:46:09 -0700250 // Assume internal cameras are advertised from the same
251 // provider. If multiple providers are registered at different time,
252 // and each provider contains multiple internal color cameras, the current
253 // logic may filter the characteristics of more than one front/rear color
254 // cameras.
255 Mutex::Autolock l(mServiceLock);
256 filterSPerfClassCharacteristicsLocked();
Shuzhen Wangd4abdf72021-05-28 11:22:50 -0700257 }
Shuzhen Wang89db2992021-05-20 13:09:48 -0700258
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -0800259 return OK;
260}
261
Jayant Chowdhary8c62d892021-03-31 02:13:46 -0700262void CameraService::broadcastTorchModeStatus(const String8& cameraId, TorchModeStatus status,
263 SystemCameraKind systemCameraKind) {
Shuzhen Wang7d859d42018-11-06 15:33:23 -0800264 Mutex::Autolock lock(mStatusListenerLock);
Shuzhen Wang7d859d42018-11-06 15:33:23 -0800265 for (auto& i : mListenerList) {
Jayant Chowdhary8c62d892021-03-31 02:13:46 -0700266 if (shouldSkipStatusUpdates(systemCameraKind, i->isVendorListener(), i->getListenerPid(),
267 i->getListenerUid())) {
268 ALOGV("Skipping torch callback for system-only camera device %s",
269 cameraId.c_str());
270 continue;
271 }
Jayant Chowdhary5216b212019-07-17 09:26:23 -0700272 i->getListener()->onTorchStatusChanged(mapToInterface(status), String16{cameraId});
Shuzhen Wang7d859d42018-11-06 15:33:23 -0800273 }
274}
275
Mathias Agopian65ab4712010-07-14 17:59:35 -0700276CameraService::~CameraService() {
Ruben Brunkd1176ef2014-02-21 10:51:38 -0800277 VendorTagDescriptor::clearGlobalVendorTagDescriptor();
Svet Ganova453d0d2018-01-11 15:37:58 -0800278 mUidPolicy->unregisterSelf();
Michael Grooverd1d435a2018-12-18 17:39:42 -0800279 mSensorPrivacyPolicy->unregisterSelf();
Cliff Wud8cae102021-03-11 01:37:42 +0800280 mInjectionStatusListener->removeListener();
Mathias Agopian65ab4712010-07-14 17:59:35 -0700281}
282
Emilian Peevaee727d2017-05-04 16:35:48 +0100283void CameraService::onNewProviderRegistered() {
284 enumerateProviders();
285}
286
Jayant Chowdhary847947d2019-08-30 18:02:59 -0700287void CameraService::filterAPI1SystemCameraLocked(
288 const std::vector<std::string> &normalDeviceIds) {
289 mNormalDeviceIdsWithoutSystemCamera.clear();
290 for (auto &deviceId : normalDeviceIds) {
Jayant Chowdhary33e8ef82019-09-27 09:20:42 -0700291 SystemCameraKind deviceKind = SystemCameraKind::PUBLIC;
292 if (getSystemCameraKind(String8(deviceId.c_str()), &deviceKind) != OK) {
293 ALOGE("%s: Invalid camera id %s, skipping", __FUNCTION__, deviceId.c_str());
294 continue;
295 }
296 if (deviceKind == SystemCameraKind::SYSTEM_ONLY_CAMERA) {
Jayant Chowdhary847947d2019-08-30 18:02:59 -0700297 // All system camera ids will necessarily come after public camera
298 // device ids as per the HAL interface contract.
299 break;
300 }
301 mNormalDeviceIdsWithoutSystemCamera.push_back(deviceId);
302 }
303 ALOGV("%s: number of API1 compatible public cameras is %zu", __FUNCTION__,
304 mNormalDeviceIdsWithoutSystemCamera.size());
305}
306
Jayant Chowdhary33e8ef82019-09-27 09:20:42 -0700307status_t CameraService::getSystemCameraKind(const String8& cameraId, SystemCameraKind *kind) const {
308 auto state = getCameraState(cameraId);
309 if (state != nullptr) {
310 *kind = state->getSystemCameraKind();
311 return OK;
312 }
313 // Hidden physical camera ids won't have CameraState
314 return mCameraProviderManager->getSystemCameraKind(cameraId.c_str(), kind);
315}
316
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -0800317void CameraService::updateCameraNumAndIds() {
318 Mutex::Autolock l(mServiceLock);
Jayant Chowdhary847947d2019-08-30 18:02:59 -0700319 std::pair<int, int> systemAndNonSystemCameras = mCameraProviderManager->getCameraCount();
320 // Excludes hidden secure cameras
321 mNumberOfCameras =
322 systemAndNonSystemCameras.first + systemAndNonSystemCameras.second;
323 mNumberOfCamerasWithoutSystemCamera = systemAndNonSystemCameras.second;
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -0800324 mNormalDeviceIds =
325 mCameraProviderManager->getAPI1CompatibleCameraDeviceIds();
Jayant Chowdhary847947d2019-08-30 18:02:59 -0700326 filterAPI1SystemCameraLocked(mNormalDeviceIds);
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -0800327}
328
Shuzhen Wangb38b53f2021-07-15 12:46:09 -0700329void CameraService::filterSPerfClassCharacteristicsLocked() {
Shuzhen Wang89db2992021-05-20 13:09:48 -0700330 // To claim to be S Performance primary cameras, the cameras must be
331 // backward compatible. So performance class primary camera Ids must be API1
332 // compatible.
333 bool firstRearCameraSeen = false, firstFrontCameraSeen = false;
334 for (const auto& cameraId : mNormalDeviceIdsWithoutSystemCamera) {
335 int facing = -1;
336 int orientation = 0;
337 String8 cameraId8(cameraId.c_str());
338 getDeviceVersion(cameraId8, /*out*/&facing, /*out*/&orientation);
339 if (facing == -1) {
340 ALOGE("%s: Unable to get camera device \"%s\" facing", __FUNCTION__, cameraId.c_str());
341 return;
342 }
343
344 if ((facing == hardware::CAMERA_FACING_BACK && !firstRearCameraSeen) ||
345 (facing == hardware::CAMERA_FACING_FRONT && !firstFrontCameraSeen)) {
Shuzhen Wangd4abdf72021-05-28 11:22:50 -0700346 status_t res = mCameraProviderManager->filterSmallJpegSizes(cameraId);
347 if (res == OK) {
348 mPerfClassPrimaryCameraIds.insert(cameraId);
349 } else {
350 ALOGE("%s: Failed to filter small JPEG sizes for performance class primary "
351 "camera %s: %s(%d)", __FUNCTION__, cameraId.c_str(), strerror(-res), res);
352 break;
353 }
Shuzhen Wang89db2992021-05-20 13:09:48 -0700354
355 if (facing == hardware::CAMERA_FACING_BACK) {
356 firstRearCameraSeen = true;
357 }
358 if (facing == hardware::CAMERA_FACING_FRONT) {
359 firstFrontCameraSeen = true;
360 }
361 }
362
363 if (firstRearCameraSeen && firstFrontCameraSeen) {
364 break;
365 }
366 }
367}
368
Guennadi Liakhovetski151e3be2017-11-28 16:34:18 +0100369void CameraService::addStates(const String8 id) {
370 std::string cameraId(id.c_str());
Jayant Chowdhary0bd38522021-11-05 17:49:27 -0700371 CameraResourceCost cost;
Guennadi Liakhovetski151e3be2017-11-28 16:34:18 +0100372 status_t res = mCameraProviderManager->getResourceCost(cameraId, &cost);
373 if (res != OK) {
374 ALOGE("Failed to query device resource cost: %s (%d)", strerror(-res), res);
375 return;
376 }
Shuzhen Wang403af6d2021-12-21 00:08:43 +0000377 SystemCameraKind deviceKind = SystemCameraKind::PUBLIC;
Jayant Chowdhary33e8ef82019-09-27 09:20:42 -0700378 res = mCameraProviderManager->getSystemCameraKind(cameraId, &deviceKind);
379 if (res != OK) {
380 ALOGE("Failed to query device kind: %s (%d)", strerror(-res), res);
381 return;
382 }
Shuzhen Wang403af6d2021-12-21 00:08:43 +0000383 std::vector<std::string> physicalCameraIds;
384 mCameraProviderManager->isLogicalCamera(cameraId, &physicalCameraIds);
Guennadi Liakhovetski151e3be2017-11-28 16:34:18 +0100385 std::set<String8> conflicting;
386 for (size_t i = 0; i < cost.conflictingDevices.size(); i++) {
387 conflicting.emplace(String8(cost.conflictingDevices[i].c_str()));
388 }
389
390 {
391 Mutex::Autolock lock(mCameraStatesLock);
392 mCameraStates.emplace(id, std::make_shared<CameraState>(id, cost.resourceCost,
Shuzhen Wang403af6d2021-12-21 00:08:43 +0000393 conflicting, deviceKind, physicalCameraIds));
Guennadi Liakhovetski151e3be2017-11-28 16:34:18 +0100394 }
395
396 if (mFlashlight->hasFlashUnit(id)) {
Emilian Peev7f25e5f2018-04-11 16:50:34 +0100397 Mutex::Autolock al(mTorchStatusMutex);
Guennadi Liakhovetski151e3be2017-11-28 16:34:18 +0100398 mTorchStatusMap.add(id, TorchModeStatus::AVAILABLE_OFF);
Shuzhen Wang7d859d42018-11-06 15:33:23 -0800399
Jayant Chowdhary8c62d892021-03-31 02:13:46 -0700400 broadcastTorchModeStatus(id, TorchModeStatus::AVAILABLE_OFF, deviceKind);
Guennadi Liakhovetski151e3be2017-11-28 16:34:18 +0100401 }
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -0800402
403 updateCameraNumAndIds();
Guennadi Liakhovetski151e3be2017-11-28 16:34:18 +0100404 logDeviceAdded(id, "Device added");
405}
406
Guennadi Liakhovetski6034bf52017-12-07 10:28:29 +0100407void CameraService::removeStates(const String8 id) {
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -0800408 updateCameraNumAndIds();
Guennadi Liakhovetski6034bf52017-12-07 10:28:29 +0100409 if (mFlashlight->hasFlashUnit(id)) {
Emilian Peev7f25e5f2018-04-11 16:50:34 +0100410 Mutex::Autolock al(mTorchStatusMutex);
Guennadi Liakhovetski6034bf52017-12-07 10:28:29 +0100411 mTorchStatusMap.removeItem(id);
412 }
413
414 {
415 Mutex::Autolock lock(mCameraStatesLock);
416 mCameraStates.erase(id);
417 }
418}
419
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -0800420void CameraService::onDeviceStatusChanged(const String8& id,
421 CameraDeviceStatus newHalStatus) {
422 ALOGI("%s: Status changed for cameraId=%s, newStatus=%d", __FUNCTION__,
423 id.string(), newHalStatus);
Igor Murashkincba2c162013-03-20 15:56:31 -0700424
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -0800425 StatusInternal newStatus = mapToInternal(newHalStatus);
426
Ruben Brunkcc776712015-02-17 20:18:47 -0800427 std::shared_ptr<CameraState> state = getCameraState(id);
428
429 if (state == nullptr) {
Yin-Chia Yeh92e33212017-05-24 15:54:15 -0700430 if (newStatus == StatusInternal::PRESENT) {
Guennadi Liakhovetski151e3be2017-11-28 16:34:18 +0100431 ALOGI("%s: Unknown camera ID %s, a new camera is added",
Yin-Chia Yeh92e33212017-05-24 15:54:15 -0700432 __FUNCTION__, id.string());
Guennadi Liakhovetski151e3be2017-11-28 16:34:18 +0100433
434 // First add as absent to make sure clients are notified below
435 addStates(id);
436
437 updateStatus(newStatus, id);
Yin-Chia Yeh92e33212017-05-24 15:54:15 -0700438 } else {
439 ALOGE("%s: Bad camera ID %s", __FUNCTION__, id.string());
440 }
Igor Murashkincba2c162013-03-20 15:56:31 -0700441 return;
442 }
443
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -0800444 StatusInternal oldStatus = state->getStatus();
Ruben Brunkcc776712015-02-17 20:18:47 -0800445
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -0800446 if (oldStatus == newStatus) {
Ruben Brunkcc776712015-02-17 20:18:47 -0800447 ALOGE("%s: State transition to the same status %#x not allowed", __FUNCTION__, newStatus);
Igor Murashkincba2c162013-03-20 15:56:31 -0700448 return;
449 }
450
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -0800451 if (newStatus == StatusInternal::NOT_PRESENT) {
Ruben Brunka8ca9152015-04-07 14:23:40 -0700452 logDeviceRemoved(id, String8::format("Device status changed from %d to %d", oldStatus,
453 newStatus));
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -0800454
455 // Set the device status to NOT_PRESENT, clients will no longer be able to connect
456 // to this device until the status changes
457 updateStatus(StatusInternal::NOT_PRESENT, id);
458
Emilian Peevb2bc5a42019-11-20 16:02:14 -0800459 sp<BasicClient> clientToDisconnectOnline, clientToDisconnectOffline;
Igor Murashkincba2c162013-03-20 15:56:31 -0700460 {
Ruben Brunkcc776712015-02-17 20:18:47 -0800461 // Don't do this in updateStatus to avoid deadlock over mServiceLock
462 Mutex::Autolock lock(mServiceLock);
Igor Murashkincba2c162013-03-20 15:56:31 -0700463
Ruben Brunkcc776712015-02-17 20:18:47 -0800464 // Remove cached shim parameters
465 state->setShimParams(CameraParameters());
Igor Murashkincba2c162013-03-20 15:56:31 -0700466
Emilian Peevb2bc5a42019-11-20 16:02:14 -0800467 // Remove online as well as offline client from the list of active clients,
468 // if they are present
469 clientToDisconnectOnline = removeClientLocked(id);
470 clientToDisconnectOffline = removeClientLocked(kOfflineDevice + id);
Eino-Ville Talvala8d942f92017-03-13 10:09:51 -0700471 }
Ruben Brunkcc776712015-02-17 20:18:47 -0800472
Emilian Peevb2bc5a42019-11-20 16:02:14 -0800473 disconnectClient(id, clientToDisconnectOnline);
474 disconnectClient(kOfflineDevice + id, clientToDisconnectOffline);
Igor Murashkincba2c162013-03-20 15:56:31 -0700475
Guennadi Liakhovetski6034bf52017-12-07 10:28:29 +0100476 removeStates(id);
Ruben Brunkcc776712015-02-17 20:18:47 -0800477 } else {
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -0800478 if (oldStatus == StatusInternal::NOT_PRESENT) {
Ruben Brunka8ca9152015-04-07 14:23:40 -0700479 logDeviceAdded(id, String8::format("Device status changed from %d to %d", oldStatus,
480 newStatus));
481 }
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -0800482 updateStatus(newStatus, id);
Igor Murashkincba2c162013-03-20 15:56:31 -0700483 }
Shuzhen Wang43858162020-01-10 13:42:15 -0800484}
Igor Murashkincba2c162013-03-20 15:56:31 -0700485
Shuzhen Wang43858162020-01-10 13:42:15 -0800486void CameraService::onDeviceStatusChanged(const String8& id,
487 const String8& physicalId,
488 CameraDeviceStatus newHalStatus) {
489 ALOGI("%s: Status changed for cameraId=%s, physicalCameraId=%s, newStatus=%d",
490 __FUNCTION__, id.string(), physicalId.string(), newHalStatus);
491
492 StatusInternal newStatus = mapToInternal(newHalStatus);
493
494 std::shared_ptr<CameraState> state = getCameraState(id);
495
496 if (state == nullptr) {
497 ALOGE("%s: Physical camera id %s status change on a non-present ID %s",
498 __FUNCTION__, id.string(), physicalId.string());
499 return;
500 }
501
502 StatusInternal logicalCameraStatus = state->getStatus();
503 if (logicalCameraStatus != StatusInternal::PRESENT &&
504 logicalCameraStatus != StatusInternal::NOT_AVAILABLE) {
505 ALOGE("%s: Physical camera id %s status %d change for an invalid logical camera state %d",
506 __FUNCTION__, physicalId.string(), newHalStatus, logicalCameraStatus);
507 return;
508 }
509
510 bool updated = false;
511 if (newStatus == StatusInternal::PRESENT) {
512 updated = state->removeUnavailablePhysicalId(physicalId);
513 } else {
514 updated = state->addUnavailablePhysicalId(physicalId);
515 }
516
517 if (updated) {
Shuzhen Wang4fa28d22020-01-23 15:57:25 -0800518 String8 idCombo = id + " : " + physicalId;
519 if (newStatus == StatusInternal::PRESENT) {
520 logDeviceAdded(idCombo,
521 String8::format("Device status changed to %d", newStatus));
522 } else {
523 logDeviceRemoved(idCombo,
524 String8::format("Device status changed to %d", newStatus));
525 }
Jayant Chowdharyd1478ce2020-05-07 17:35:23 -0700526 // Avoid calling getSystemCameraKind() with mStatusListenerLock held (b/141756275)
527 SystemCameraKind deviceKind = SystemCameraKind::PUBLIC;
528 if (getSystemCameraKind(id, &deviceKind) != OK) {
529 ALOGE("%s: Invalid camera id %s, skipping", __FUNCTION__, id.string());
530 return;
531 }
Shuzhen Wang43858162020-01-10 13:42:15 -0800532 String16 id16(id), physicalId16(physicalId);
533 Mutex::Autolock lock(mStatusListenerLock);
534 for (auto& listener : mListenerList) {
Jayant Chowdharyd1478ce2020-05-07 17:35:23 -0700535 if (shouldSkipStatusUpdates(deviceKind, listener->isVendorListener(),
536 listener->getListenerPid(), listener->getListenerUid())) {
537 ALOGV("Skipping discovery callback for system-only camera device %s",
538 id.c_str());
539 continue;
540 }
Shuzhen Wang43858162020-01-10 13:42:15 -0800541 listener->getListener()->onPhysicalCameraStatusChanged(mapToInterface(newStatus),
542 id16, physicalId16);
543 }
544 }
Igor Murashkincba2c162013-03-20 15:56:31 -0700545}
546
Emilian Peevb2bc5a42019-11-20 16:02:14 -0800547void CameraService::disconnectClient(const String8& id, sp<BasicClient> clientToDisconnect) {
548 if (clientToDisconnect.get() != nullptr) {
549 ALOGI("%s: Client for camera ID %s evicted due to device status change from HAL",
550 __FUNCTION__, id.string());
551 // Notify the client of disconnection
552 clientToDisconnect->notifyError(
553 hardware::camera2::ICameraDeviceCallbacks::ERROR_CAMERA_DISCONNECTED,
554 CaptureResultExtras{});
Emilian Peevb2bc5a42019-11-20 16:02:14 -0800555 clientToDisconnect->disconnect();
556 }
557}
558
Chien-Yu Chen88da5262015-02-17 13:56:46 -0800559void CameraService::onTorchStatusChanged(const String8& cameraId,
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -0800560 TorchModeStatus newStatus) {
Jayant Chowdhary8c62d892021-03-31 02:13:46 -0700561 SystemCameraKind systemCameraKind = SystemCameraKind::PUBLIC;
562 status_t res = getSystemCameraKind(cameraId, &systemCameraKind);
563 if (res != OK) {
564 ALOGE("%s: Could not get system camera kind for camera id %s", __FUNCTION__,
565 cameraId.string());
566 return;
567 }
Chien-Yu Chen3068d732015-02-09 13:29:57 -0800568 Mutex::Autolock al(mTorchStatusMutex);
Jayant Chowdhary8c62d892021-03-31 02:13:46 -0700569 onTorchStatusChangedLocked(cameraId, newStatus, systemCameraKind);
Chien-Yu Chen3068d732015-02-09 13:29:57 -0800570}
571
Jayant Chowdhary46ef0f52021-10-05 14:36:13 -0700572
573void CameraService::onTorchStatusChanged(const String8& cameraId,
574 TorchModeStatus newStatus, SystemCameraKind systemCameraKind) {
575 Mutex::Autolock al(mTorchStatusMutex);
576 onTorchStatusChangedLocked(cameraId, newStatus, systemCameraKind);
577}
578
Rucha Katakwar38284522021-11-10 11:25:21 -0800579void CameraService::broadcastTorchStrengthLevel(const String8& cameraId,
580 int32_t newStrengthLevel) {
581 Mutex::Autolock lock(mStatusListenerLock);
582 for (auto& i : mListenerList) {
583 i->getListener()->onTorchStrengthLevelChanged(String16{cameraId},
584 newStrengthLevel);
585 }
586}
587
Chien-Yu Chen88da5262015-02-17 13:56:46 -0800588void CameraService::onTorchStatusChangedLocked(const String8& cameraId,
Jayant Chowdhary8c62d892021-03-31 02:13:46 -0700589 TorchModeStatus newStatus, SystemCameraKind systemCameraKind) {
Chien-Yu Chen3068d732015-02-09 13:29:57 -0800590 ALOGI("%s: Torch status changed for cameraId=%s, newStatus=%d",
591 __FUNCTION__, cameraId.string(), newStatus);
592
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -0800593 TorchModeStatus status;
Chien-Yu Chen88da5262015-02-17 13:56:46 -0800594 status_t res = getTorchStatusLocked(cameraId, &status);
595 if (res) {
Chien-Yu Chenf6463fc2015-04-07 15:11:31 -0700596 ALOGE("%s: cannot get torch status of camera %s: %s (%d)",
597 __FUNCTION__, cameraId.string(), strerror(-res), res);
Chien-Yu Chen88da5262015-02-17 13:56:46 -0800598 return;
599 }
600 if (status == newStatus) {
Chien-Yu Chen3068d732015-02-09 13:29:57 -0800601 return;
602 }
603
Chien-Yu Chen88da5262015-02-17 13:56:46 -0800604 res = setTorchStatusLocked(cameraId, newStatus);
Chien-Yu Chen3068d732015-02-09 13:29:57 -0800605 if (res) {
Eino-Ville Talvalad309fb92015-11-25 12:12:45 -0800606 ALOGE("%s: Failed to set the torch status to %d: %s (%d)", __FUNCTION__,
607 (uint32_t)newStatus, strerror(-res), res);
Chien-Yu Chen3068d732015-02-09 13:29:57 -0800608 return;
609 }
610
Ruben Brunkcc776712015-02-17 20:18:47 -0800611 {
Ruben Brunk99e69712015-05-26 17:25:07 -0700612 // Update battery life logging for flashlight
Chien-Yu Chenfe751be2015-09-01 14:16:44 -0700613 Mutex::Autolock al(mTorchUidMapMutex);
Ruben Brunk99e69712015-05-26 17:25:07 -0700614 auto iter = mTorchUidMap.find(cameraId);
615 if (iter != mTorchUidMap.end()) {
616 int oldUid = iter->second.second;
617 int newUid = iter->second.first;
618 BatteryNotifier& notifier(BatteryNotifier::getInstance());
619 if (oldUid != newUid) {
620 // If the UID has changed, log the status and update current UID in mTorchUidMap
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -0800621 if (status == TorchModeStatus::AVAILABLE_ON) {
Ruben Brunk99e69712015-05-26 17:25:07 -0700622 notifier.noteFlashlightOff(cameraId, oldUid);
623 }
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -0800624 if (newStatus == TorchModeStatus::AVAILABLE_ON) {
Ruben Brunk99e69712015-05-26 17:25:07 -0700625 notifier.noteFlashlightOn(cameraId, newUid);
626 }
627 iter->second.second = newUid;
628 } else {
629 // If the UID has not changed, log the status
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -0800630 if (newStatus == TorchModeStatus::AVAILABLE_ON) {
Ruben Brunk99e69712015-05-26 17:25:07 -0700631 notifier.noteFlashlightOn(cameraId, oldUid);
632 } else {
633 notifier.noteFlashlightOff(cameraId, oldUid);
634 }
635 }
636 }
637 }
Jayant Chowdhary8c62d892021-03-31 02:13:46 -0700638 broadcastTorchModeStatus(cameraId, newStatus, systemCameraKind);
Chien-Yu Chen3068d732015-02-09 13:29:57 -0800639}
640
Jayant Chowdharyc3198c32021-07-28 20:59:14 +0000641static bool hasPermissionsForSystemCamera(int callingPid, int callingUid,
642 bool logPermissionFailure = false) {
643 return checkPermission(sSystemCameraPermission, callingPid, callingUid,
644 logPermissionFailure) &&
Jayant Chowdhary847947d2019-08-30 18:02:59 -0700645 checkPermission(sCameraPermission, callingPid, callingUid);
646}
647
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800648Status CameraService::getNumberOfCameras(int32_t type, int32_t* numCameras) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -0700649 ATRACE_CALL();
Emilian Peevaee727d2017-05-04 16:35:48 +0100650 Mutex::Autolock l(mServiceLock);
Jayant Chowdhary847947d2019-08-30 18:02:59 -0700651 bool hasSystemCameraPermissions =
652 hasPermissionsForSystemCamera(CameraThreadState::getCallingPid(),
653 CameraThreadState::getCallingUid());
Eino-Ville Talvalabad43582015-08-14 13:12:32 -0700654 switch (type) {
655 case CAMERA_TYPE_BACKWARD_COMPATIBLE:
Jayant Chowdhary847947d2019-08-30 18:02:59 -0700656 if (hasSystemCameraPermissions) {
657 *numCameras = static_cast<int>(mNormalDeviceIds.size());
658 } else {
659 *numCameras = static_cast<int>(mNormalDeviceIdsWithoutSystemCamera.size());
660 }
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800661 break;
Eino-Ville Talvalabad43582015-08-14 13:12:32 -0700662 case CAMERA_TYPE_ALL:
Jayant Chowdhary847947d2019-08-30 18:02:59 -0700663 if (hasSystemCameraPermissions) {
664 *numCameras = mNumberOfCameras;
665 } else {
666 *numCameras = mNumberOfCamerasWithoutSystemCamera;
667 }
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800668 break;
Eino-Ville Talvalabad43582015-08-14 13:12:32 -0700669 default:
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800670 ALOGW("%s: Unknown camera type %d",
Eino-Ville Talvalabad43582015-08-14 13:12:32 -0700671 __FUNCTION__, type);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800672 return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
673 "Unknown camera type %d", type);
Eino-Ville Talvalabad43582015-08-14 13:12:32 -0700674 }
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800675 return Status::ok();
Mathias Agopian65ab4712010-07-14 17:59:35 -0700676}
677
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800678Status CameraService::getCameraInfo(int cameraId,
679 CameraInfo* cameraInfo) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -0700680 ATRACE_CALL();
Emilian Peevaee727d2017-05-04 16:35:48 +0100681 Mutex::Autolock l(mServiceLock);
Jayant Chowdhary847947d2019-08-30 18:02:59 -0700682 std::string cameraIdStr = cameraIdIntToStrLocked(cameraId);
683 if (shouldRejectSystemCameraConnection(String8(cameraIdStr.c_str()))) {
684 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION, "Unable to retrieve camera"
685 "characteristics for system only device %s: ", cameraIdStr.c_str());
686 }
Emilian Peevaee727d2017-05-04 16:35:48 +0100687
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -0800688 if (!mInitialized) {
Rucha Katakward9ea6452021-05-06 11:57:16 -0700689 logServiceError(String8::format("Camera subsystem is not available"),ERROR_DISCONNECTED);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800690 return STATUS_ERROR(ERROR_DISCONNECTED,
691 "Camera subsystem is not available");
Iliyan Malchev8951a972011-04-14 16:55:59 -0700692 }
Jayant Chowdhary847947d2019-08-30 18:02:59 -0700693 bool hasSystemCameraPermissions =
694 hasPermissionsForSystemCamera(CameraThreadState::getCallingPid(),
695 CameraThreadState::getCallingUid());
696 int cameraIdBound = mNumberOfCamerasWithoutSystemCamera;
697 if (hasSystemCameraPermissions) {
698 cameraIdBound = mNumberOfCameras;
699 }
700 if (cameraId < 0 || cameraId >= cameraIdBound) {
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800701 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT,
702 "CameraId is not valid");
Mathias Agopian65ab4712010-07-14 17:59:35 -0700703 }
704
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -0800705 Status ret = Status::ok();
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -0800706 status_t err = mCameraProviderManager->getCameraInfo(
Jayant Chowdhary847947d2019-08-30 18:02:59 -0700707 cameraIdStr.c_str(), cameraInfo);
Emilian Peevf53f66e2017-04-11 14:29:43 +0100708 if (err != OK) {
709 ret = STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
710 "Error retrieving camera info from device %d: %s (%d)", cameraId,
711 strerror(-err), err);
Rucha Katakward9ea6452021-05-06 11:57:16 -0700712 logServiceError(String8::format("Error retrieving camera info from device %d",cameraId),
713 ERROR_INVALID_OPERATION);
Ruben Brunkcc776712015-02-17 20:18:47 -0800714 }
Emilian Peevf53f66e2017-04-11 14:29:43 +0100715
Ruben Brunkcc776712015-02-17 20:18:47 -0800716 return ret;
717}
Ruben Brunkb2119af2014-05-09 19:57:56 -0700718
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -0800719std::string CameraService::cameraIdIntToStrLocked(int cameraIdInt) {
Jayant Chowdhary847947d2019-08-30 18:02:59 -0700720 const std::vector<std::string> *deviceIds = &mNormalDeviceIdsWithoutSystemCamera;
721 auto callingPid = CameraThreadState::getCallingPid();
722 auto callingUid = CameraThreadState::getCallingUid();
Jayant Chowdharyc3198c32021-07-28 20:59:14 +0000723 if (checkPermission(sSystemCameraPermission, callingPid, callingUid,
724 /*logPermissionFailure*/false) || getpid() == callingPid) {
Jayant Chowdhary847947d2019-08-30 18:02:59 -0700725 deviceIds = &mNormalDeviceIds;
726 }
727 if (cameraIdInt < 0 || cameraIdInt >= static_cast<int>(deviceIds->size())) {
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -0800728 ALOGE("%s: input id %d invalid: valid range (0, %zu)",
Jayant Chowdhary847947d2019-08-30 18:02:59 -0700729 __FUNCTION__, cameraIdInt, deviceIds->size());
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -0800730 return std::string{};
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -0800731 }
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -0800732
Jayant Chowdhary847947d2019-08-30 18:02:59 -0700733 return (*deviceIds)[cameraIdInt];
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -0800734}
735
736String8 CameraService::cameraIdIntToStr(int cameraIdInt) {
737 Mutex::Autolock lock(mServiceLock);
738 return String8(cameraIdIntToStrLocked(cameraIdInt).c_str());
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -0800739}
740
741Status CameraService::getCameraCharacteristics(const String16& cameraId,
Shuzhen Wangd4abdf72021-05-28 11:22:50 -0700742 int targetSdkVersion, CameraMetadata* cameraInfo) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -0700743 ATRACE_CALL();
Zhijun He2b59be82013-09-25 10:14:30 -0700744 if (!cameraInfo) {
745 ALOGE("%s: cameraInfo is NULL", __FUNCTION__);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800746 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "cameraInfo is NULL");
Zhijun He2b59be82013-09-25 10:14:30 -0700747 }
748
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -0800749 if (!mInitialized) {
750 ALOGE("%s: Camera HAL couldn't be initialized", __FUNCTION__);
Rucha Katakward9ea6452021-05-06 11:57:16 -0700751 logServiceError(String8::format("Camera subsystem is not available"),ERROR_DISCONNECTED);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800752 return STATUS_ERROR(ERROR_DISCONNECTED,
753 "Camera subsystem is not available");;
Zhijun He2b59be82013-09-25 10:14:30 -0700754 }
755
Jayant Chowdhary5216b212019-07-17 09:26:23 -0700756 if (shouldRejectSystemCameraConnection(String8(cameraId))) {
757 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION, "Unable to retrieve camera"
758 "characteristics for system only device %s: ", String8(cameraId).string());
759 }
760
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -0800761 Status ret{};
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -0800762
Shuzhen Wangd4abdf72021-05-28 11:22:50 -0700763
764 std::string cameraIdStr = String8(cameraId).string();
765 bool overrideForPerfClass =
766 SessionConfigurationUtils::targetPerfClassPrimaryCamera(mPerfClassPrimaryCameraIds,
767 cameraIdStr, targetSdkVersion);
Emilian Peevf53f66e2017-04-11 14:29:43 +0100768 status_t res = mCameraProviderManager->getCameraCharacteristics(
Shuzhen Wangd4abdf72021-05-28 11:22:50 -0700769 cameraIdStr, overrideForPerfClass, cameraInfo);
Emilian Peevf53f66e2017-04-11 14:29:43 +0100770 if (res != OK) {
Eino-Ville Talvalaa976df82019-06-13 18:01:58 -0700771 if (res == NAME_NOT_FOUND) {
772 return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT, "Unable to retrieve camera "
773 "characteristics for unknown device %s: %s (%d)", String8(cameraId).string(),
774 strerror(-res), res);
775 } else {
Rucha Katakward9ea6452021-05-06 11:57:16 -0700776 logServiceError(String8::format("Unable to retrieve camera characteristics for "
777 "device %s.", String8(cameraId).string()),ERROR_INVALID_OPERATION);
Eino-Ville Talvalaa976df82019-06-13 18:01:58 -0700778 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION, "Unable to retrieve camera "
779 "characteristics for device %s: %s (%d)", String8(cameraId).string(),
780 strerror(-res), res);
781 }
Ruben Brunkb2119af2014-05-09 19:57:56 -0700782 }
Jayant Chowdhary33e8ef82019-09-27 09:20:42 -0700783 SystemCameraKind deviceKind = SystemCameraKind::PUBLIC;
784 if (getSystemCameraKind(String8(cameraId), &deviceKind) != OK) {
785 ALOGE("%s: Invalid camera id %s, skipping", __FUNCTION__, String8(cameraId).string());
786 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION, "Unable to retrieve camera kind "
787 "for device %s", String8(cameraId).string());
788 }
Jayant Chowdhary12361932018-08-27 14:46:13 -0700789 int callingPid = CameraThreadState::getCallingPid();
790 int callingUid = CameraThreadState::getCallingUid();
Emilian Peeve20c6372018-08-14 18:45:53 +0100791 std::vector<int32_t> tagsRemoved;
Jayant Chowdhary5216b212019-07-17 09:26:23 -0700792 // If it's not calling from cameraserver, check the permission only if
793 // android.permission.CAMERA is required. If android.permission.SYSTEM_CAMERA was needed,
794 // it would've already been checked in shouldRejectSystemCameraConnection.
Emilian Peeve20c6372018-08-14 18:45:53 +0100795 if ((callingPid != getpid()) &&
Jayant Chowdhary33e8ef82019-09-27 09:20:42 -0700796 (deviceKind != SystemCameraKind::SYSTEM_ONLY_CAMERA) &&
Jayant Chowdhary5216b212019-07-17 09:26:23 -0700797 !checkPermission(sCameraPermission, callingPid, callingUid)) {
Emilian Peeve20c6372018-08-14 18:45:53 +0100798 res = cameraInfo->removePermissionEntries(
799 mCameraProviderManager->getProviderTagIdLocked(String8(cameraId).string()),
800 &tagsRemoved);
801 if (res != OK) {
802 cameraInfo->clear();
803 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION, "Failed to remove camera"
804 " characteristics needing camera permission for device %s: %s (%d)",
805 String8(cameraId).string(), strerror(-res), res);
806 }
807 }
808
809 if (!tagsRemoved.empty()) {
810 res = cameraInfo->update(ANDROID_REQUEST_CHARACTERISTIC_KEYS_NEEDING_PERMISSION,
811 tagsRemoved.data(), tagsRemoved.size());
812 if (res != OK) {
813 cameraInfo->clear();
814 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION, "Failed to insert camera "
815 "keys needing permission for device %s: %s (%d)", String8(cameraId).string(),
816 strerror(-res), res);
817 }
818 }
819
Zhijun He2b59be82013-09-25 10:14:30 -0700820 return ret;
821}
822
Rucha Katakwar38284522021-11-10 11:25:21 -0800823Status CameraService::getTorchStrengthLevel(const String16& cameraId,
824 int32_t* torchStrength) {
825 ATRACE_CALL();
826 Mutex::Autolock l(mServiceLock);
827 if (!mInitialized) {
828 ALOGE("%s: Camera HAL couldn't be initialized.", __FUNCTION__);
829 return STATUS_ERROR(ERROR_DISCONNECTED, "Camera HAL couldn't be initialized.");
830 }
831
832 if(torchStrength == NULL) {
833 ALOGE("%s: strength level must not be null.", __FUNCTION__);
834 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "Strength level should not be null.");
835 }
836
837 status_t res = mCameraProviderManager->getTorchStrengthLevel(String8(cameraId).string(),
838 torchStrength);
839 if (res != OK) {
840 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION, "Unable to retrieve torch "
841 "strength level for device %s: %s (%d)", String8(cameraId).string(),
842 strerror(-res), res);
843 }
844 ALOGI("%s: Torch strength level is: %d", __FUNCTION__, *torchStrength);
845 return Status::ok();
846}
847
Ruben Brunkcc776712015-02-17 20:18:47 -0800848String8 CameraService::getFormattedCurrentTime() {
849 time_t now = time(nullptr);
850 char formattedTime[64];
851 strftime(formattedTime, sizeof(formattedTime), "%m-%d %H:%M:%S", localtime(&now));
852 return String8(formattedTime);
853}
854
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800855Status CameraService::getCameraVendorTagDescriptor(
856 /*out*/
857 hardware::camera2::params::VendorTagDescriptor* desc) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -0700858 ATRACE_CALL();
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -0800859 if (!mInitialized) {
860 ALOGE("%s: Camera HAL couldn't be initialized", __FUNCTION__);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800861 return STATUS_ERROR(ERROR_DISCONNECTED, "Camera subsystem not available");
Ruben Brunkd1176ef2014-02-21 10:51:38 -0800862 }
Eino-Ville Talvala1e74e242016-03-03 11:24:28 -0800863 sp<VendorTagDescriptor> globalDescriptor = VendorTagDescriptor::getGlobalVendorTagDescriptor();
864 if (globalDescriptor != nullptr) {
865 *desc = *(globalDescriptor.get());
866 }
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800867 return Status::ok();
Ruben Brunkd1176ef2014-02-21 10:51:38 -0800868}
869
Emilian Peev71c73a22017-03-21 16:35:51 +0000870Status CameraService::getCameraVendorTagCache(
871 /*out*/ hardware::camera2::params::VendorTagDescriptorCache* cache) {
872 ATRACE_CALL();
873 if (!mInitialized) {
874 ALOGE("%s: Camera HAL couldn't be initialized", __FUNCTION__);
875 return STATUS_ERROR(ERROR_DISCONNECTED,
876 "Camera subsystem not available");
877 }
878 sp<VendorTagDescriptorCache> globalCache =
879 VendorTagDescriptorCache::getGlobalVendorTagCache();
880 if (globalCache != nullptr) {
881 *cache = *(globalCache.get());
882 }
883 return Status::ok();
884}
885
Jayant Chowdhary32ced0e2021-04-09 14:00:22 -0700886void CameraService::clearCachedVariables() {
887 BasicClient::BasicClient::sCameraService = nullptr;
888}
889
Jayant Chowdharyffc5d682022-05-12 18:34:34 +0000890std::pair<int, IPCTransport> CameraService::getDeviceVersion(const String8& cameraId, int* facing,
891 int* orientation) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -0700892 ATRACE_CALL();
Igor Murashkin634a5152013-02-20 17:15:11 -0800893
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -0800894 int deviceVersion = 0;
895
Emilian Peevf53f66e2017-04-11 14:29:43 +0100896 status_t res;
897 hardware::hidl_version maxVersion{0,0};
Jayant Chowdharyffc5d682022-05-12 18:34:34 +0000898 IPCTransport transport = IPCTransport::INVALID;
Emilian Peevf53f66e2017-04-11 14:29:43 +0100899 res = mCameraProviderManager->getHighestSupportedVersion(cameraId.string(),
Jayant Chowdharyffc5d682022-05-12 18:34:34 +0000900 &maxVersion, &transport);
901 if (res != OK || transport == IPCTransport::INVALID) {
902 ALOGE("%s: Unable to get highest supported version for camera id %s", __FUNCTION__,
903 cameraId.string());
904 return std::make_pair(-1, IPCTransport::INVALID) ;
905 }
Emilian Peevf53f66e2017-04-11 14:29:43 +0100906 deviceVersion = HARDWARE_DEVICE_API_VERSION(maxVersion.get_major(), maxVersion.get_minor());
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -0800907
Emilian Peevf53f66e2017-04-11 14:29:43 +0100908 hardware::CameraInfo info;
909 if (facing) {
910 res = mCameraProviderManager->getCameraInfo(cameraId.string(), &info);
Jayant Chowdharyffc5d682022-05-12 18:34:34 +0000911 if (res != OK) {
912 return std::make_pair(-1, IPCTransport::INVALID);
913 }
Emilian Peevf53f66e2017-04-11 14:29:43 +0100914 *facing = info.facing;
Emilian Peevb91f1802021-03-23 14:50:28 -0700915 if (orientation) {
916 *orientation = info.orientation;
917 }
Igor Murashkin634a5152013-02-20 17:15:11 -0800918 }
Emilian Peevf53f66e2017-04-11 14:29:43 +0100919
Jayant Chowdharyffc5d682022-05-12 18:34:34 +0000920 return std::make_pair(deviceVersion, transport);
Igor Murashkin634a5152013-02-20 17:15:11 -0800921}
922
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800923Status CameraService::filterGetInfoErrorCode(status_t err) {
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -0700924 switch(err) {
925 case NO_ERROR:
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800926 return Status::ok();
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -0800927 case BAD_VALUE:
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800928 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT,
929 "CameraId is not valid for HAL module");
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -0800930 case NO_INIT:
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800931 return STATUS_ERROR(ERROR_DISCONNECTED,
932 "Camera device not available");
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -0700933 default:
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800934 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
935 "Camera HAL encountered error %d: %s",
936 err, strerror(-err));
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -0700937 }
Igor Murashkinbfc99152013-02-27 12:55:20 -0800938}
939
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800940Status CameraService::makeClient(const sp<CameraService>& cameraService,
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -0800941 const sp<IInterface>& cameraCb, const String16& packageName, bool systemNativeClient,
Eino-Ville Talvalaa976df82019-06-13 18:01:58 -0700942 const std::optional<String16>& featureId, const String8& cameraId,
Emilian Peev8b64f282021-03-25 16:49:57 -0700943 int api1CameraId, int facing, int sensorOrientation, int clientPid, uid_t clientUid,
Jayant Chowdharyffc5d682022-05-12 18:34:34 +0000944 int servicePid, std::pair<int, IPCTransport> deviceVersionAndTransport,
945 apiLevel effectiveApiLevel, bool overrideForPerfClass, /*out*/sp<BasicClient>* client) {
946 // For HIDL devices
947 if (deviceVersionAndTransport.second == IPCTransport::HIDL) {
948 // Create CameraClient based on device version reported by the HAL.
949 int deviceVersion = deviceVersionAndTransport.first;
950 switch(deviceVersion) {
951 case CAMERA_DEVICE_API_VERSION_1_0:
952 ALOGE("Camera using old HAL version: %d", deviceVersion);
953 return STATUS_ERROR_FMT(ERROR_DEPRECATED_HAL,
954 "Camera device \"%s\" HAL version %d no longer supported",
955 cameraId.string(), deviceVersion);
956 break;
957 case CAMERA_DEVICE_API_VERSION_3_0:
958 case CAMERA_DEVICE_API_VERSION_3_1:
959 case CAMERA_DEVICE_API_VERSION_3_2:
960 case CAMERA_DEVICE_API_VERSION_3_3:
961 case CAMERA_DEVICE_API_VERSION_3_4:
962 case CAMERA_DEVICE_API_VERSION_3_5:
963 case CAMERA_DEVICE_API_VERSION_3_6:
964 case CAMERA_DEVICE_API_VERSION_3_7:
965 break;
966 default:
967 // Should not be reachable
968 ALOGE("Unknown camera device HAL version: %d", deviceVersion);
969 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
970 "Camera device \"%s\" has unknown HAL version %d",
971 cameraId.string(), deviceVersion);
972 }
973 }
974 if (effectiveApiLevel == API_1) { // Camera1 API route
975 sp<ICameraClient> tmp = static_cast<ICameraClient*>(cameraCb.get());
976 *client = new Camera2Client(cameraService, tmp, packageName, featureId,
977 cameraId, api1CameraId, facing, sensorOrientation, clientPid, clientUid,
978 servicePid, overrideForPerfClass);
979 } else { // Camera2 API route
980 sp<hardware::camera2::ICameraDeviceCallbacks> tmp =
981 static_cast<hardware::camera2::ICameraDeviceCallbacks*>(cameraCb.get());
982 *client = new CameraDeviceClient(cameraService, tmp, packageName,
983 systemNativeClient, featureId, cameraId, facing, sensorOrientation,
984 clientPid, clientUid, servicePid, overrideForPerfClass);
Ruben Brunkcc776712015-02-17 20:18:47 -0800985 }
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800986 return Status::ok();
Ruben Brunkcc776712015-02-17 20:18:47 -0800987}
988
Ruben Brunk6267b532015-04-30 17:44:07 -0700989String8 CameraService::toString(std::set<userid_t> intSet) {
990 String8 s("");
991 bool first = true;
992 for (userid_t i : intSet) {
993 if (first) {
994 s.appendFormat("%d", i);
995 first = false;
996 } else {
997 s.appendFormat(", %d", i);
998 }
999 }
1000 return s;
1001}
1002
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08001003int32_t CameraService::mapToInterface(TorchModeStatus status) {
1004 int32_t serviceStatus = ICameraServiceListener::TORCH_STATUS_NOT_AVAILABLE;
1005 switch (status) {
1006 case TorchModeStatus::NOT_AVAILABLE:
1007 serviceStatus = ICameraServiceListener::TORCH_STATUS_NOT_AVAILABLE;
1008 break;
1009 case TorchModeStatus::AVAILABLE_OFF:
1010 serviceStatus = ICameraServiceListener::TORCH_STATUS_AVAILABLE_OFF;
1011 break;
1012 case TorchModeStatus::AVAILABLE_ON:
1013 serviceStatus = ICameraServiceListener::TORCH_STATUS_AVAILABLE_ON;
1014 break;
1015 default:
1016 ALOGW("Unknown new flash status: %d", status);
1017 }
1018 return serviceStatus;
1019}
1020
1021CameraService::StatusInternal CameraService::mapToInternal(CameraDeviceStatus status) {
1022 StatusInternal serviceStatus = StatusInternal::NOT_PRESENT;
1023 switch (status) {
1024 case CameraDeviceStatus::NOT_PRESENT:
1025 serviceStatus = StatusInternal::NOT_PRESENT;
1026 break;
1027 case CameraDeviceStatus::PRESENT:
1028 serviceStatus = StatusInternal::PRESENT;
1029 break;
1030 case CameraDeviceStatus::ENUMERATING:
1031 serviceStatus = StatusInternal::ENUMERATING;
1032 break;
1033 default:
1034 ALOGW("Unknown new HAL device status: %d", status);
1035 }
1036 return serviceStatus;
1037}
1038
1039int32_t CameraService::mapToInterface(StatusInternal status) {
1040 int32_t serviceStatus = ICameraServiceListener::STATUS_NOT_PRESENT;
1041 switch (status) {
1042 case StatusInternal::NOT_PRESENT:
1043 serviceStatus = ICameraServiceListener::STATUS_NOT_PRESENT;
1044 break;
1045 case StatusInternal::PRESENT:
1046 serviceStatus = ICameraServiceListener::STATUS_PRESENT;
1047 break;
1048 case StatusInternal::ENUMERATING:
1049 serviceStatus = ICameraServiceListener::STATUS_ENUMERATING;
1050 break;
1051 case StatusInternal::NOT_AVAILABLE:
1052 serviceStatus = ICameraServiceListener::STATUS_NOT_AVAILABLE;
1053 break;
1054 case StatusInternal::UNKNOWN:
1055 serviceStatus = ICameraServiceListener::STATUS_UNKNOWN;
1056 break;
1057 default:
1058 ALOGW("Unknown new internal device status: %d", status);
1059 }
1060 return serviceStatus;
1061}
1062
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001063Status CameraService::initializeShimMetadata(int cameraId) {
Jayant Chowdhary12361932018-08-27 14:46:13 -07001064 int uid = CameraThreadState::getCallingUid();
Ruben Brunkb2119af2014-05-09 19:57:56 -07001065
Chien-Yu Chen98a668f2015-12-18 14:10:33 -08001066 String16 internalPackageName("cameraserver");
Ruben Brunkcc776712015-02-17 20:18:47 -08001067 String8 id = String8::format("%d", cameraId);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001068 Status ret = Status::ok();
Ruben Brunkcc776712015-02-17 20:18:47 -08001069 sp<Client> tmp = nullptr;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001070 if (!(ret = connectHelper<ICameraClient,Client>(
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -08001071 sp<ICameraClient>{nullptr}, id, cameraId,
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08001072 internalPackageName, /*systemNativeClient*/ false, {}, uid, USE_CALLING_PID,
Shuzhen Wangd4abdf72021-05-28 11:22:50 -07001073 API_1, /*shimUpdateOnly*/ true, /*oomScoreOffset*/ 0,
1074 /*targetSdkVersion*/ __ANDROID_API_FUTURE__, /*out*/ tmp)
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001075 ).isOk()) {
1076 ALOGE("%s: Error initializing shim metadata: %s", __FUNCTION__, ret.toString8().string());
Ruben Brunkb2119af2014-05-09 19:57:56 -07001077 }
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001078 return ret;
Ruben Brunkb2119af2014-05-09 19:57:56 -07001079}
1080
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001081Status CameraService::getLegacyParametersLazy(int cameraId,
Igor Murashkin65d14b92014-06-17 12:03:20 -07001082 /*out*/
1083 CameraParameters* parameters) {
1084
1085 ALOGV("%s: for cameraId: %d", __FUNCTION__, cameraId);
1086
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001087 Status ret = Status::ok();
Igor Murashkin65d14b92014-06-17 12:03:20 -07001088
1089 if (parameters == NULL) {
1090 ALOGE("%s: parameters must not be null", __FUNCTION__);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001091 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "Parameters must not be null");
Igor Murashkin65d14b92014-06-17 12:03:20 -07001092 }
1093
Ruben Brunkcc776712015-02-17 20:18:47 -08001094 String8 id = String8::format("%d", cameraId);
1095
1096 // Check if we already have parameters
1097 {
1098 // Scope for service lock
Igor Murashkin65d14b92014-06-17 12:03:20 -07001099 Mutex::Autolock lock(mServiceLock);
Ruben Brunkcc776712015-02-17 20:18:47 -08001100 auto cameraState = getCameraState(id);
1101 if (cameraState == nullptr) {
1102 ALOGE("%s: Invalid camera ID: %s", __FUNCTION__, id.string());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001103 return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
1104 "Invalid camera ID: %s", id.string());
Ruben Brunkcc776712015-02-17 20:18:47 -08001105 }
1106 CameraParameters p = cameraState->getShimParams();
1107 if (!p.isEmpty()) {
1108 *parameters = p;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001109 return ret;
Igor Murashkin65d14b92014-06-17 12:03:20 -07001110 }
1111 }
1112
Jayant Chowdhary12361932018-08-27 14:46:13 -07001113 int64_t token = CameraThreadState::clearCallingIdentity();
Ruben Brunkcc776712015-02-17 20:18:47 -08001114 ret = initializeShimMetadata(cameraId);
Jayant Chowdhary12361932018-08-27 14:46:13 -07001115 CameraThreadState::restoreCallingIdentity(token);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001116 if (!ret.isOk()) {
Ruben Brunkcc776712015-02-17 20:18:47 -08001117 // Error already logged by callee
1118 return ret;
1119 }
1120
1121 // Check for parameters again
1122 {
1123 // Scope for service lock
1124 Mutex::Autolock lock(mServiceLock);
1125 auto cameraState = getCameraState(id);
1126 if (cameraState == nullptr) {
1127 ALOGE("%s: Invalid camera ID: %s", __FUNCTION__, id.string());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001128 return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
1129 "Invalid camera ID: %s", id.string());
Igor Murashkin65d14b92014-06-17 12:03:20 -07001130 }
Ruben Brunkcc776712015-02-17 20:18:47 -08001131 CameraParameters p = cameraState->getShimParams();
1132 if (!p.isEmpty()) {
1133 *parameters = p;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001134 return ret;
Igor Murashkin65d14b92014-06-17 12:03:20 -07001135 }
1136 }
1137
Ruben Brunkcc776712015-02-17 20:18:47 -08001138 ALOGE("%s: Parameters were not initialized, or were empty. Device may not be present.",
1139 __FUNCTION__);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001140 return STATUS_ERROR(ERROR_INVALID_OPERATION, "Unable to initialize legacy parameters");
Igor Murashkin65d14b92014-06-17 12:03:20 -07001141}
1142
Chien-Yu Chen98a668f2015-12-18 14:10:33 -08001143// Can camera service trust the caller based on the calling UID?
1144static bool isTrustedCallingUid(uid_t uid) {
1145 switch (uid) {
Eino-Ville Talvalaaf9d0302016-06-29 14:40:10 -07001146 case AID_MEDIA: // mediaserver
Chien-Yu Chen98a668f2015-12-18 14:10:33 -08001147 case AID_CAMERASERVER: // cameraserver
Eino-Ville Talvalaaf9d0302016-06-29 14:40:10 -07001148 case AID_RADIO: // telephony
Chien-Yu Chen98a668f2015-12-18 14:10:33 -08001149 return true;
1150 default:
1151 return false;
1152 }
1153}
1154
Nicholas Sauera3620332019-04-03 14:05:17 -07001155static status_t getUidForPackage(String16 packageName, int userId, /*inout*/uid_t& uid, int err) {
1156 PermissionController pc;
1157 uid = pc.getPackageUid(packageName, 0);
1158 if (uid <= 0) {
1159 ALOGE("Unknown package: '%s'", String8(packageName).string());
1160 dprintf(err, "Unknown package: '%s'\n", String8(packageName).string());
1161 return BAD_VALUE;
1162 }
1163
1164 if (userId < 0) {
1165 ALOGE("Invalid user: %d", userId);
1166 dprintf(err, "Invalid user: %d\n", userId);
1167 return BAD_VALUE;
1168 }
1169
1170 uid = multiuser_get_uid(userId, uid);
1171 return NO_ERROR;
1172}
1173
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001174Status CameraService::validateConnectLocked(const String8& cameraId,
Chien-Yu Chen18df60e2016-03-18 18:18:09 -07001175 const String8& clientName8, /*inout*/int& clientUid, /*inout*/int& clientPid,
1176 /*out*/int& originalClientPid) const {
Tyler Luu5861a9a2011-10-06 00:00:03 -05001177
Alex Deymo9c2a2c22016-08-25 11:59:14 -07001178#ifdef __BRILLO__
1179 UNUSED(clientName8);
1180 UNUSED(clientUid);
1181 UNUSED(clientPid);
1182 UNUSED(originalClientPid);
1183#else
Chien-Yu Chen7939aee2016-03-21 18:19:33 -07001184 Status allowed = validateClientPermissionsLocked(cameraId, clientName8, clientUid, clientPid,
1185 originalClientPid);
Eino-Ville Talvala04926862016-03-02 15:42:53 -08001186 if (!allowed.isOk()) {
Christopher Wileyce761d12016-02-16 10:15:00 -08001187 return allowed;
1188 }
Alex Deymo9c2a2c22016-08-25 11:59:14 -07001189#endif // __BRILLO__
Christopher Wileyce761d12016-02-16 10:15:00 -08001190
Jayant Chowdhary12361932018-08-27 14:46:13 -07001191 int callingPid = CameraThreadState::getCallingPid();
Eino-Ville Talvala04926862016-03-02 15:42:53 -08001192
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -08001193 if (!mInitialized) {
Ruben Brunkcc776712015-02-17 20:18:47 -08001194 ALOGE("CameraService::connect X (PID %d) rejected (camera HAL module not loaded)",
1195 callingPid);
Eino-Ville Talvala04926862016-03-02 15:42:53 -08001196 return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
1197 "No camera HAL module available to open camera device \"%s\"", cameraId.string());
Iliyan Malchev8951a972011-04-14 16:55:59 -07001198 }
1199
Ruben Brunkcc776712015-02-17 20:18:47 -08001200 if (getCameraState(cameraId) == nullptr) {
1201 ALOGE("CameraService::connect X (PID %d) rejected (invalid camera ID %s)", callingPid,
1202 cameraId.string());
Eino-Ville Talvala04926862016-03-02 15:42:53 -08001203 return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
1204 "No camera device with ID \"%s\" available", cameraId.string());
Mathias Agopian65ab4712010-07-14 17:59:35 -07001205 }
1206
Eino-Ville Talvala04926862016-03-02 15:42:53 -08001207 status_t err = checkIfDeviceIsUsable(cameraId);
1208 if (err != NO_ERROR) {
1209 switch(err) {
1210 case -ENODEV:
1211 case -EBUSY:
1212 return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
1213 "No camera device with ID \"%s\" currently available", cameraId.string());
1214 default:
1215 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
1216 "Unknown error connecting to ID \"%s\"", cameraId.string());
1217 }
1218 }
1219 return Status::ok();
Christopher Wiley0039bcf2016-02-05 10:29:50 -08001220}
1221
Eino-Ville Talvala04926862016-03-02 15:42:53 -08001222Status CameraService::validateClientPermissionsLocked(const String8& cameraId,
Chien-Yu Chen7939aee2016-03-21 18:19:33 -07001223 const String8& clientName8, int& clientUid, int& clientPid,
1224 /*out*/int& originalClientPid) const {
Jayant Chowdhary12361932018-08-27 14:46:13 -07001225 int callingPid = CameraThreadState::getCallingPid();
1226 int callingUid = CameraThreadState::getCallingUid();
Mathias Agopian65ab4712010-07-14 17:59:35 -07001227
Chien-Yu Chen98a668f2015-12-18 14:10:33 -08001228 // Check if we can trust clientUid
Mathias Agopian65ab4712010-07-14 17:59:35 -07001229 if (clientUid == USE_CALLING_UID) {
Chien-Yu Chen98a668f2015-12-18 14:10:33 -08001230 clientUid = callingUid;
1231 } else if (!isTrustedCallingUid(callingUid)) {
1232 ALOGE("CameraService::connect X (calling PID %d, calling UID %d) rejected "
1233 "(don't trust clientUid %d)", callingPid, callingUid, clientUid);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001234 return STATUS_ERROR_FMT(ERROR_PERMISSION_DENIED,
1235 "Untrusted caller (calling PID %d, UID %d) trying to "
1236 "forward camera access to camera %s for client %s (PID %d, UID %d)",
1237 callingPid, callingUid, cameraId.string(),
1238 clientName8.string(), clientUid, clientPid);
Mathias Agopian65ab4712010-07-14 17:59:35 -07001239 }
1240
Chien-Yu Chen98a668f2015-12-18 14:10:33 -08001241 // Check if we can trust clientPid
1242 if (clientPid == USE_CALLING_PID) {
1243 clientPid = callingPid;
1244 } else if (!isTrustedCallingUid(callingUid)) {
1245 ALOGE("CameraService::connect X (calling PID %d, calling UID %d) rejected "
1246 "(don't trust clientPid %d)", callingPid, callingUid, clientPid);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001247 return STATUS_ERROR_FMT(ERROR_PERMISSION_DENIED,
1248 "Untrusted caller (calling PID %d, UID %d) trying to "
1249 "forward camera access to camera %s for client %s (PID %d, UID %d)",
1250 callingPid, callingUid, cameraId.string(),
1251 clientName8.string(), clientUid, clientPid);
Chien-Yu Chen98a668f2015-12-18 14:10:33 -08001252 }
1253
Jayant Chowdhary5216b212019-07-17 09:26:23 -07001254 if (shouldRejectSystemCameraConnection(cameraId)) {
1255 ALOGW("Attempting to connect to system-only camera id %s, connection rejected",
1256 cameraId.c_str());
1257 return STATUS_ERROR_FMT(ERROR_DISCONNECTED, "No camera device with ID \"%s\" is"
1258 "available", cameraId.string());
1259 }
Jayant Chowdhary33e8ef82019-09-27 09:20:42 -07001260 SystemCameraKind deviceKind = SystemCameraKind::PUBLIC;
1261 if (getSystemCameraKind(cameraId, &deviceKind) != OK) {
1262 ALOGE("%s: Invalid camera id %s, skipping", __FUNCTION__, cameraId.string());
1263 return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT, "No camera device with ID \"%s\""
1264 "found while trying to query device kind", cameraId.string());
1265
1266 }
1267
Jayant Chowdhary5216b212019-07-17 09:26:23 -07001268 // If it's not calling from cameraserver, check the permission if the
1269 // device isn't a system only camera (shouldRejectSystemCameraConnection already checks for
1270 // android.permission.SYSTEM_CAMERA for system only camera devices).
Chien-Yu Chen98a668f2015-12-18 14:10:33 -08001271 if (callingPid != getpid() &&
Jayant Chowdhary33e8ef82019-09-27 09:20:42 -07001272 (deviceKind != SystemCameraKind::SYSTEM_ONLY_CAMERA) &&
Jayant Chowdhary5216b212019-07-17 09:26:23 -07001273 !checkPermission(sCameraPermission, clientPid, clientUid)) {
Chien-Yu Chen98a668f2015-12-18 14:10:33 -08001274 ALOGE("Permission Denial: can't use the camera pid=%d, uid=%d", clientPid, clientUid);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001275 return STATUS_ERROR_FMT(ERROR_PERMISSION_DENIED,
1276 "Caller \"%s\" (PID %d, UID %d) cannot open camera \"%s\" without camera permission",
1277 clientName8.string(), clientUid, clientPid, cameraId.string());
Chien-Yu Chen98a668f2015-12-18 14:10:33 -08001278 }
1279
Svet Ganova453d0d2018-01-11 15:37:58 -08001280 // Make sure the UID is in an active state to use the camera
Svet Ganov7b4ab782018-03-25 12:48:10 -07001281 if (!mUidPolicy->isUidActive(callingUid, String16(clientName8))) {
Varun Shahb42f1eb2019-04-16 14:45:13 -07001282 int32_t procState = mUidPolicy->getProcState(callingUid);
Svet Ganova453d0d2018-01-11 15:37:58 -08001283 ALOGE("Access Denial: can't use the camera from an idle UID pid=%d, uid=%d",
1284 clientPid, clientUid);
1285 return STATUS_ERROR_FMT(ERROR_DISABLED,
Varun Shahb42f1eb2019-04-16 14:45:13 -07001286 "Caller \"%s\" (PID %d, UID %d) cannot open camera \"%s\" from background ("
1287 "calling UID %d proc state %" PRId32 ")",
1288 clientName8.string(), clientUid, clientPid, cameraId.string(),
1289 callingUid, procState);
Svet Ganova453d0d2018-01-11 15:37:58 -08001290 }
1291
Michael Grooverd1d435a2018-12-18 17:39:42 -08001292 // If sensor privacy is enabled then prevent access to the camera
1293 if (mSensorPrivacyPolicy->isSensorPrivacyEnabled()) {
1294 ALOGE("Access Denial: cannot use the camera when sensor privacy is enabled");
1295 return STATUS_ERROR_FMT(ERROR_DISABLED,
1296 "Caller \"%s\" (PID %d, UID %d) cannot open camera \"%s\" when sensor privacy "
1297 "is enabled", clientName8.string(), clientUid, clientPid, cameraId.string());
1298 }
1299
Chien-Yu Chen4f3d6202016-03-22 10:50:23 -07001300 // Only use passed in clientPid to check permission. Use calling PID as the client PID that's
1301 // connected to camera service directly.
Chien-Yu Chen18df60e2016-03-18 18:18:09 -07001302 originalClientPid = clientPid;
Chien-Yu Chen4f3d6202016-03-22 10:50:23 -07001303 clientPid = callingPid;
Mathias Agopian65ab4712010-07-14 17:59:35 -07001304
Ruben Brunk6267b532015-04-30 17:44:07 -07001305 userid_t clientUserId = multiuser_get_user_id(clientUid);
Wu-cheng Lia3355432011-05-20 14:54:25 +08001306
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08001307 // For non-system clients : Only allow clients who are being used by the current foreground
1308 // device user, unless calling from our own process.
1309 if (!doesClientHaveSystemUid() && callingPid != getpid() &&
Jayant Chowdhary8ec41c12019-02-21 20:17:22 -08001310 (mAllowedUsers.find(clientUserId) == mAllowedUsers.end())) {
Ruben Brunk6267b532015-04-30 17:44:07 -07001311 ALOGE("CameraService::connect X (PID %d) rejected (cannot connect from "
1312 "device user %d, currently allowed device users: %s)", callingPid, clientUserId,
1313 toString(mAllowedUsers).string());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001314 return STATUS_ERROR_FMT(ERROR_PERMISSION_DENIED,
1315 "Callers from device user %d are not currently allowed to connect to camera \"%s\"",
1316 clientUserId, cameraId.string());
Ruben Brunk36597b22015-03-20 22:15:57 -07001317 }
1318
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001319 return Status::ok();
Ruben Brunkcc776712015-02-17 20:18:47 -08001320}
1321
1322status_t CameraService::checkIfDeviceIsUsable(const String8& cameraId) const {
1323 auto cameraState = getCameraState(cameraId);
Jayant Chowdhary12361932018-08-27 14:46:13 -07001324 int callingPid = CameraThreadState::getCallingPid();
Ruben Brunkcc776712015-02-17 20:18:47 -08001325 if (cameraState == nullptr) {
1326 ALOGE("CameraService::connect X (PID %d) rejected (invalid camera ID %s)", callingPid,
1327 cameraId.string());
1328 return -ENODEV;
1329 }
1330
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08001331 StatusInternal currentStatus = cameraState->getStatus();
1332 if (currentStatus == StatusInternal::NOT_PRESENT) {
Ruben Brunkcc776712015-02-17 20:18:47 -08001333 ALOGE("CameraService::connect X (PID %d) rejected (camera %s is not connected)",
1334 callingPid, cameraId.string());
Ruben Brunk0f61d8f2013-08-08 13:07:18 -07001335 return -ENODEV;
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08001336 } else if (currentStatus == StatusInternal::ENUMERATING) {
Ruben Brunkcc776712015-02-17 20:18:47 -08001337 ALOGE("CameraService::connect X (PID %d) rejected, (camera %s is initializing)",
1338 callingPid, cameraId.string());
Ruben Brunk0f61d8f2013-08-08 13:07:18 -07001339 return -EBUSY;
Igor Murashkincba2c162013-03-20 15:56:31 -07001340 }
Igor Murashkincba2c162013-03-20 15:56:31 -07001341
Ruben Brunkcc776712015-02-17 20:18:47 -08001342 return NO_ERROR;
Igor Murashkine6800ce2013-03-04 17:25:57 -08001343}
1344
Ruben Brunkcc776712015-02-17 20:18:47 -08001345void CameraService::finishConnectLocked(const sp<BasicClient>& client,
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08001346 const CameraService::DescriptorPtr& desc, int oomScoreOffset, bool systemNativeClient) {
Igor Murashkine6800ce2013-03-04 17:25:57 -08001347
Ruben Brunkcc776712015-02-17 20:18:47 -08001348 // Make a descriptor for the incoming client
Jayant Chowdhary8eb8d912021-05-18 17:41:56 +00001349 auto clientDescriptor =
1350 CameraService::CameraClientManager::makeClientDescriptor(client, desc,
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08001351 oomScoreOffset, systemNativeClient);
Ruben Brunkcc776712015-02-17 20:18:47 -08001352 auto evicted = mActiveClientManager.addAndEvict(clientDescriptor);
1353
1354 logConnected(desc->getKey(), static_cast<int>(desc->getOwnerId()),
1355 String8(client->getPackageName()));
1356
1357 if (evicted.size() > 0) {
1358 // This should never happen - clients should already have been removed in disconnect
1359 for (auto& i : evicted) {
1360 ALOGE("%s: Invalid state: Client for camera %s was not removed in disconnect",
1361 __FUNCTION__, i->getKey().string());
1362 }
1363
1364 LOG_ALWAYS_FATAL("%s: Invalid state for CameraService, clients not evicted properly",
1365 __FUNCTION__);
1366 }
Eino-Ville Talvala24901c82015-09-04 14:15:58 -07001367
1368 // And register a death notification for the client callback. Do
1369 // this last to avoid Binder policy where a nested Binder
1370 // transaction might be pre-empted to service the client death
1371 // notification if the client process dies before linkToDeath is
1372 // invoked.
1373 sp<IBinder> remoteCallback = client->getRemote();
1374 if (remoteCallback != nullptr) {
1375 remoteCallback->linkToDeath(this);
1376 }
Ruben Brunkcc776712015-02-17 20:18:47 -08001377}
1378
1379status_t CameraService::handleEvictionsLocked(const String8& cameraId, int clientPid,
1380 apiLevel effectiveApiLevel, const sp<IBinder>& remoteCallback, const String8& packageName,
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08001381 int oomScoreOffset, bool systemNativeClient,
Ruben Brunkcc776712015-02-17 20:18:47 -08001382 /*out*/
1383 sp<BasicClient>* client,
1384 std::shared_ptr<resource_policy::ClientDescriptor<String8, sp<BasicClient>>>* partial) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07001385 ATRACE_CALL();
Ruben Brunkcc776712015-02-17 20:18:47 -08001386 status_t ret = NO_ERROR;
Ruben Brunk4f9576b2015-04-10 17:26:56 -07001387 std::vector<DescriptorPtr> evictedClients;
Ruben Brunkcc776712015-02-17 20:18:47 -08001388 DescriptorPtr clientDescriptor;
1389 {
1390 if (effectiveApiLevel == API_1) {
1391 // If we are using API1, any existing client for this camera ID with the same remote
1392 // should be returned rather than evicted to allow MediaRecorder to work properly.
1393
1394 auto current = mActiveClientManager.get(cameraId);
1395 if (current != nullptr) {
1396 auto clientSp = current->getValue();
1397 if (clientSp.get() != nullptr) { // should never be needed
Ruben Brunk0bbf8b22015-04-30 14:35:42 -07001398 if (!clientSp->canCastToApiClient(effectiveApiLevel)) {
Shuzhen Wangb2d43f62021-08-25 14:01:11 -07001399 ALOGW("CameraService connect called with a different"
Ruben Brunk0bbf8b22015-04-30 14:35:42 -07001400 " API level, evicting prior client...");
1401 } else if (clientSp->getRemote() == remoteCallback) {
Ruben Brunkcc776712015-02-17 20:18:47 -08001402 ALOGI("CameraService::connect X (PID %d) (second call from same"
Ruben Brunk0bbf8b22015-04-30 14:35:42 -07001403 " app binder, returning the same client)", clientPid);
Ruben Brunkcc776712015-02-17 20:18:47 -08001404 *client = clientSp;
1405 return NO_ERROR;
1406 }
1407 }
Wu-cheng Li2fd24402012-02-23 19:01:00 -08001408 }
Wu-cheng Li2fd24402012-02-23 19:01:00 -08001409 }
Wu-cheng Li08ad5ef2012-04-19 12:35:00 +08001410
Ruben Brunkcc776712015-02-17 20:18:47 -08001411 // Get current active client PIDs
1412 std::vector<int> ownerPids(mActiveClientManager.getAllOwners());
1413 ownerPids.push_back(clientPid);
Igor Murashkine6800ce2013-03-04 17:25:57 -08001414
Emilian Peev8131a262017-02-01 12:33:43 +00001415 std::vector<int> priorityScores(ownerPids.size());
1416 std::vector<int> states(ownerPids.size());
Igor Murashkine6800ce2013-03-04 17:25:57 -08001417
Emilian Peev8131a262017-02-01 12:33:43 +00001418 // Get priority scores of all active PIDs
1419 status_t err = ProcessInfoService::getProcessStatesScoresFromPids(
1420 ownerPids.size(), &ownerPids[0], /*out*/&states[0],
1421 /*out*/&priorityScores[0]);
1422 if (err != OK) {
1423 ALOGE("%s: Priority score query failed: %d",
1424 __FUNCTION__, err);
1425 return err;
1426 }
Ruben Brunkb2119af2014-05-09 19:57:56 -07001427
Ruben Brunkcc776712015-02-17 20:18:47 -08001428 // Update all active clients' priorities
Emilian Peev8131a262017-02-01 12:33:43 +00001429 std::map<int,resource_policy::ClientPriority> pidToPriorityMap;
Ruben Brunkcc776712015-02-17 20:18:47 -08001430 for (size_t i = 0; i < ownerPids.size() - 1; i++) {
Emilian Peev8131a262017-02-01 12:33:43 +00001431 pidToPriorityMap.emplace(ownerPids[i],
Jayant Chowdharyc578a502019-05-08 10:57:54 -07001432 resource_policy::ClientPriority(priorityScores[i], states[i],
Jayant Chowdhary8eb8d912021-05-18 17:41:56 +00001433 /* isVendorClient won't get copied over*/ false,
1434 /* oomScoreOffset won't get copied over*/ 0));
Ruben Brunkcc776712015-02-17 20:18:47 -08001435 }
1436 mActiveClientManager.updatePriorities(pidToPriorityMap);
Chien-Yu Chen3068d732015-02-09 13:29:57 -08001437
Ruben Brunkcc776712015-02-17 20:18:47 -08001438 // Get state for the given cameraId
1439 auto state = getCameraState(cameraId);
1440 if (state == nullptr) {
1441 ALOGE("CameraService::connect X (PID %d) rejected (no camera device with ID %s)",
1442 clientPid, cameraId.string());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001443 // Should never get here because validateConnectLocked should have errored out
Zhijun Heb10cdad2014-06-16 16:38:35 -07001444 return BAD_VALUE;
Zhijun Heb10cdad2014-06-16 16:38:35 -07001445 }
Ruben Brunkcc776712015-02-17 20:18:47 -08001446
Jayant Chowdhary8eb8d912021-05-18 17:41:56 +00001447 int32_t actualScore = priorityScores[priorityScores.size() - 1];
1448 int32_t actualState = states[states.size() - 1];
1449
1450 // Make descriptor for incoming client. We store the oomScoreOffset
1451 // since we might need it later on new handleEvictionsLocked and
1452 // ProcessInfoService would not take that into account.
Shuzhen Wang2db86ff2018-04-25 01:11:17 +00001453 clientDescriptor = CameraClientManager::makeClientDescriptor(cameraId,
Ruben Brunkcc776712015-02-17 20:18:47 -08001454 sp<BasicClient>{nullptr}, static_cast<int32_t>(state->getCost()),
Jayant Chowdhary8eb8d912021-05-18 17:41:56 +00001455 state->getConflicting(), actualScore, clientPid, actualState,
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08001456 oomScoreOffset, systemNativeClient);
Ruben Brunkcc776712015-02-17 20:18:47 -08001457
Jayant Chowdhary5bf11bf2019-06-24 19:42:56 -07001458 resource_policy::ClientPriority clientPriority = clientDescriptor->getPriority();
1459
Ruben Brunkcc776712015-02-17 20:18:47 -08001460 // Find clients that would be evicted
1461 auto evicted = mActiveClientManager.wouldEvict(clientDescriptor);
1462
1463 // If the incoming client was 'evicted,' higher priority clients have the camera in the
1464 // background, so we cannot do evictions
1465 if (std::find(evicted.begin(), evicted.end(), clientDescriptor) != evicted.end()) {
1466 ALOGE("CameraService::connect X (PID %d) rejected (existing client(s) with higher"
1467 " priority).", clientPid);
1468
1469 sp<BasicClient> clientSp = clientDescriptor->getValue();
1470 String8 curTime = getFormattedCurrentTime();
1471 auto incompatibleClients =
1472 mActiveClientManager.getIncompatibleClients(clientDescriptor);
1473
1474 String8 msg = String8::format("%s : DENIED connect device %s client for package %s "
Emilian Peev8131a262017-02-01 12:33:43 +00001475 "(PID %d, score %d state %d) due to eviction policy", curTime.string(),
Ruben Brunkcc776712015-02-17 20:18:47 -08001476 cameraId.string(), packageName.string(), clientPid,
Jayant Chowdhary5bf11bf2019-06-24 19:42:56 -07001477 clientPriority.getScore(), clientPriority.getState());
Ruben Brunkcc776712015-02-17 20:18:47 -08001478
1479 for (auto& i : incompatibleClients) {
1480 msg.appendFormat("\n - Blocked by existing device %s client for package %s"
Emilian Peev8131a262017-02-01 12:33:43 +00001481 "(PID %" PRId32 ", score %" PRId32 ", state %" PRId32 ")",
1482 i->getKey().string(),
1483 String8{i->getValue()->getPackageName()}.string(),
1484 i->getOwnerId(), i->getPriority().getScore(),
1485 i->getPriority().getState());
Eino-Ville Talvala022f0cb2015-05-19 16:31:16 -07001486 ALOGE(" Conflicts with: Device %s, client package %s (PID %"
Emilian Peev8131a262017-02-01 12:33:43 +00001487 PRId32 ", score %" PRId32 ", state %" PRId32 ")", i->getKey().string(),
Eino-Ville Talvala022f0cb2015-05-19 16:31:16 -07001488 String8{i->getValue()->getPackageName()}.string(), i->getOwnerId(),
Emilian Peev8131a262017-02-01 12:33:43 +00001489 i->getPriority().getScore(), i->getPriority().getState());
Ruben Brunkcc776712015-02-17 20:18:47 -08001490 }
1491
1492 // Log the client's attempt
Ruben Brunka8ca9152015-04-07 14:23:40 -07001493 Mutex::Autolock l(mLogLock);
Ruben Brunkcc776712015-02-17 20:18:47 -08001494 mEventLog.add(msg);
1495
Yin-Chia Yeh8dfe4642020-06-01 11:57:45 -07001496 auto current = mActiveClientManager.get(cameraId);
1497 if (current != nullptr) {
1498 return -EBUSY; // CAMERA_IN_USE
1499 } else {
1500 return -EUSERS; // MAX_CAMERAS_IN_USE
1501 }
Ruben Brunkcc776712015-02-17 20:18:47 -08001502 }
1503
1504 for (auto& i : evicted) {
1505 sp<BasicClient> clientSp = i->getValue();
1506 if (clientSp.get() == nullptr) {
1507 ALOGE("%s: Invalid state: Null client in active client list.", __FUNCTION__);
1508
1509 // TODO: Remove this
1510 LOG_ALWAYS_FATAL("%s: Invalid state for CameraService, null client in active list",
1511 __FUNCTION__);
1512 mActiveClientManager.remove(i);
1513 continue;
1514 }
1515
1516 ALOGE("CameraService::connect evicting conflicting client for camera ID %s",
1517 i->getKey().string());
Ruben Brunk4f9576b2015-04-10 17:26:56 -07001518 evictedClients.push_back(i);
Ruben Brunkcc776712015-02-17 20:18:47 -08001519
Ruben Brunkcc776712015-02-17 20:18:47 -08001520 // Log the clients evicted
Ruben Brunka8ca9152015-04-07 14:23:40 -07001521 logEvent(String8::format("EVICT device %s client held by package %s (PID"
Emilian Peev8131a262017-02-01 12:33:43 +00001522 " %" PRId32 ", score %" PRId32 ", state %" PRId32 ")\n - Evicted by device %s client for"
1523 " package %s (PID %d, score %" PRId32 ", state %" PRId32 ")",
Ruben Brunkcc776712015-02-17 20:18:47 -08001524 i->getKey().string(), String8{clientSp->getPackageName()}.string(),
Emilian Peev8131a262017-02-01 12:33:43 +00001525 i->getOwnerId(), i->getPriority().getScore(),
1526 i->getPriority().getState(), cameraId.string(),
Jayant Chowdhary5bf11bf2019-06-24 19:42:56 -07001527 packageName.string(), clientPid, clientPriority.getScore(),
1528 clientPriority.getState()));
Ruben Brunkcc776712015-02-17 20:18:47 -08001529
1530 // Notify the client of disconnection
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001531 clientSp->notifyError(hardware::camera2::ICameraDeviceCallbacks::ERROR_CAMERA_DISCONNECTED,
Ruben Brunkcc776712015-02-17 20:18:47 -08001532 CaptureResultExtras());
Zhijun Heb10cdad2014-06-16 16:38:35 -07001533 }
Ruben Brunkb2119af2014-05-09 19:57:56 -07001534 }
1535
Ruben Brunkcc776712015-02-17 20:18:47 -08001536 // Do not hold mServiceLock while disconnecting clients, but retain the condition blocking
1537 // other clients from connecting in mServiceLockWrapper if held
1538 mServiceLock.unlock();
1539
1540 // Clear caller identity temporarily so client disconnect PID checks work correctly
Jayant Chowdhary12361932018-08-27 14:46:13 -07001541 int64_t token = CameraThreadState::clearCallingIdentity();
Ruben Brunkcc776712015-02-17 20:18:47 -08001542
1543 // Destroy evicted clients
1544 for (auto& i : evictedClients) {
1545 // Disconnect is blocking, and should only have returned when HAL has cleaned up
Ruben Brunk4f9576b2015-04-10 17:26:56 -07001546 i->getValue()->disconnect(); // Clients will remove themselves from the active client list
Ruben Brunkcc776712015-02-17 20:18:47 -08001547 }
Ruben Brunkcc776712015-02-17 20:18:47 -08001548
Jayant Chowdhary12361932018-08-27 14:46:13 -07001549 CameraThreadState::restoreCallingIdentity(token);
Ruben Brunkcc776712015-02-17 20:18:47 -08001550
Ruben Brunk4f9576b2015-04-10 17:26:56 -07001551 for (const auto& i : evictedClients) {
1552 ALOGV("%s: Waiting for disconnect to complete for client for device %s (PID %" PRId32 ")",
1553 __FUNCTION__, i->getKey().string(), i->getOwnerId());
1554 ret = mActiveClientManager.waitUntilRemoved(i, DEFAULT_DISCONNECT_TIMEOUT_NS);
1555 if (ret == TIMED_OUT) {
1556 ALOGE("%s: Timed out waiting for client for device %s to disconnect, "
1557 "current clients:\n%s", __FUNCTION__, i->getKey().string(),
1558 mActiveClientManager.toString().string());
1559 return -EBUSY;
1560 }
1561 if (ret != NO_ERROR) {
1562 ALOGE("%s: Received error waiting for client for device %s to disconnect: %s (%d), "
1563 "current clients:\n%s", __FUNCTION__, i->getKey().string(), strerror(-ret),
1564 ret, mActiveClientManager.toString().string());
1565 return ret;
1566 }
1567 }
1568
1569 evictedClients.clear();
1570
Ruben Brunkcc776712015-02-17 20:18:47 -08001571 // Once clients have been disconnected, relock
1572 mServiceLock.lock();
1573
1574 // Check again if the device was unplugged or something while we weren't holding mServiceLock
1575 if ((ret = checkIfDeviceIsUsable(cameraId)) != NO_ERROR) {
1576 return ret;
Ruben Brunkb2119af2014-05-09 19:57:56 -07001577 }
1578
Ruben Brunkcc776712015-02-17 20:18:47 -08001579 *partial = clientDescriptor;
1580 return NO_ERROR;
Ruben Brunkb2119af2014-05-09 19:57:56 -07001581}
1582
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001583Status CameraService::connect(
Igor Murashkine6800ce2013-03-04 17:25:57 -08001584 const sp<ICameraClient>& cameraClient,
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -08001585 int api1CameraId,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00001586 const String16& clientPackageName,
Ruben Brunk0f61d8f2013-08-08 13:07:18 -07001587 int clientUid,
Chien-Yu Chen98a668f2015-12-18 14:10:33 -08001588 int clientPid,
Shuzhen Wangd4abdf72021-05-28 11:22:50 -07001589 int targetSdkVersion,
Ruben Brunk0f61d8f2013-08-08 13:07:18 -07001590 /*out*/
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001591 sp<ICamera>* device) {
Igor Murashkine6800ce2013-03-04 17:25:57 -08001592
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07001593 ATRACE_CALL();
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001594 Status ret = Status::ok();
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -08001595
1596 String8 id = cameraIdIntToStr(api1CameraId);
Ruben Brunkcc776712015-02-17 20:18:47 -08001597 sp<Client> client = nullptr;
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -08001598 ret = connectHelper<ICameraClient,Client>(cameraClient, id, api1CameraId,
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08001599 clientPackageName,/*systemNativeClient*/ false, {}, clientUid, clientPid, API_1,
Shuzhen Wangd4abdf72021-05-28 11:22:50 -07001600 /*shimUpdateOnly*/ false, /*oomScoreOffset*/ 0, targetSdkVersion, /*out*/client);
Zhijun Heb10cdad2014-06-16 16:38:35 -07001601
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001602 if(!ret.isOk()) {
Jayant Chowdhary12361932018-08-27 14:46:13 -07001603 logRejected(id, CameraThreadState::getCallingPid(), String8(clientPackageName),
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001604 ret.toString8());
Ruben Brunkcc776712015-02-17 20:18:47 -08001605 return ret;
Zhijun Heb10cdad2014-06-16 16:38:35 -07001606 }
1607
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001608 *device = client;
1609 return ret;
Zhijun Heb10cdad2014-06-16 16:38:35 -07001610}
1611
Jayant Chowdhary33e8ef82019-09-27 09:20:42 -07001612bool CameraService::shouldSkipStatusUpdates(SystemCameraKind systemCameraKind,
1613 bool isVendorListener, int clientPid, int clientUid) {
Jayant Chowdhary5216b212019-07-17 09:26:23 -07001614 // If the client is not a vendor client, don't add listener if
1615 // a) the camera is a publicly hidden secure camera OR
1616 // b) the camera is a system only camera and the client doesn't
1617 // have android.permission.SYSTEM_CAMERA permissions.
1618 if (!isVendorListener && (systemCameraKind == SystemCameraKind::HIDDEN_SECURE_CAMERA ||
1619 (systemCameraKind == SystemCameraKind::SYSTEM_ONLY_CAMERA &&
1620 !hasPermissionsForSystemCamera(clientPid, clientUid)))) {
Jayant Chowdharyf949ddd2019-01-29 14:34:11 -08001621 return true;
1622 }
1623 return false;
1624}
1625
Jayant Chowdhary5216b212019-07-17 09:26:23 -07001626bool CameraService::shouldRejectSystemCameraConnection(const String8& cameraId) const {
1627 // Rules for rejection:
1628 // 1) If cameraserver tries to access this camera device, accept the
1629 // connection.
1630 // 2) The camera device is a publicly hidden secure camera device AND some
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08001631 // non system component is trying to access it.
Jayant Chowdhary5216b212019-07-17 09:26:23 -07001632 // 3) if the camera device is advertised by the camera HAL as SYSTEM_ONLY
1633 // and the serving thread is a non hwbinder thread, the client must have
1634 // android.permission.SYSTEM_CAMERA permissions to connect.
1635
1636 int cPid = CameraThreadState::getCallingPid();
1637 int cUid = CameraThreadState::getCallingUid();
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08001638 bool systemClient = doesClientHaveSystemUid();
Jayant Chowdhary33e8ef82019-09-27 09:20:42 -07001639 SystemCameraKind systemCameraKind = SystemCameraKind::PUBLIC;
1640 if (getSystemCameraKind(cameraId, &systemCameraKind) != OK) {
Eino-Ville Talvalaa976df82019-06-13 18:01:58 -07001641 // This isn't a known camera ID, so it's not a system camera
1642 ALOGV("%s: Unknown camera id %s, ", __FUNCTION__, cameraId.c_str());
1643 return false;
Jayant Chowdhary33e8ef82019-09-27 09:20:42 -07001644 }
Jayant Chowdhary5216b212019-07-17 09:26:23 -07001645
1646 // (1) Cameraserver trying to connect, accept.
1647 if (CameraThreadState::getCallingPid() == getpid()) {
1648 return false;
1649 }
1650 // (2)
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08001651 if (!systemClient && systemCameraKind == SystemCameraKind::HIDDEN_SECURE_CAMERA) {
Jayant Chowdhary5216b212019-07-17 09:26:23 -07001652 ALOGW("Rejecting access to secure hidden camera %s", cameraId.c_str());
1653 return true;
1654 }
1655 // (3) Here we only check for permissions if it is a system only camera device. This is since
1656 // getCameraCharacteristics() allows for calls to succeed (albeit after hiding some
1657 // characteristics) even if clients don't have android.permission.CAMERA. We do not want the
1658 // same behavior for system camera devices.
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08001659 if (!systemClient && systemCameraKind == SystemCameraKind::SYSTEM_ONLY_CAMERA &&
Jayant Chowdharyc3198c32021-07-28 20:59:14 +00001660 !hasPermissionsForSystemCamera(cPid, cUid, /*logPermissionFailure*/true)) {
Jayant Chowdhary5216b212019-07-17 09:26:23 -07001661 ALOGW("Rejecting access to system only camera %s, inadequete permissions",
1662 cameraId.c_str());
1663 return true;
1664 }
1665
1666 return false;
1667}
1668
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001669Status CameraService::connectDevice(
1670 const sp<hardware::camera2::ICameraDeviceCallbacks>& cameraCb,
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08001671 const String16& cameraId,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00001672 const String16& clientPackageName,
Jooyung Hanb3f7cd22020-01-23 12:27:18 +09001673 const std::optional<String16>& clientFeatureId,
Shuzhen Wangd4abdf72021-05-28 11:22:50 -07001674 int clientUid, int oomScoreOffset, int targetSdkVersion,
Ruben Brunkcc776712015-02-17 20:18:47 -08001675 /*out*/
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001676 sp<hardware::camera2::ICameraDeviceUser>* device) {
Ruben Brunkcc776712015-02-17 20:18:47 -08001677
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07001678 ATRACE_CALL();
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001679 Status ret = Status::ok();
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08001680 String8 id = String8(cameraId);
Ruben Brunkcc776712015-02-17 20:18:47 -08001681 sp<CameraDeviceClient> client = nullptr;
Jayant Chowdhary5bf11bf2019-06-24 19:42:56 -07001682 String16 clientPackageNameAdj = clientPackageName;
Jayant Chowdhary8eb8d912021-05-18 17:41:56 +00001683 int callingPid = CameraThreadState::getCallingPid();
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08001684 bool systemNativeClient = false;
1685 if (doesClientHaveSystemUid() && (clientPackageNameAdj.size() == 0)) {
1686 std::string systemClient =
1687 StringPrintf("client.pid<%d>", CameraThreadState::getCallingPid());
1688 clientPackageNameAdj = String16(systemClient.c_str());
1689 systemNativeClient = true;
Jayant Chowdhary5bf11bf2019-06-24 19:42:56 -07001690 }
Jayant Chowdhary8eb8d912021-05-18 17:41:56 +00001691
1692 if (oomScoreOffset < 0) {
1693 String8 msg =
1694 String8::format("Cannot increase the priority of a client %s pid %d for "
1695 "camera id %s", String8(clientPackageNameAdj).string(), callingPid,
1696 id.string());
1697 ALOGE("%s: %s", __FUNCTION__, msg.string());
1698 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, msg.string());
1699 }
1700
Austin Borger80173a92022-08-03 17:50:40 -07001701 userid_t clientUserId = multiuser_get_user_id(clientUid);
1702 int callingUid = CameraThreadState::getCallingUid();
1703 if (clientUid == USE_CALLING_UID) {
1704 clientUserId = multiuser_get_user_id(callingUid);
1705 }
1706
1707 if (CameraServiceProxyWrapper::isCameraDisabled(clientUserId)) {
Austin Borger5f7abe22022-04-26 15:55:10 -07001708 String8 msg =
1709 String8::format("Camera disabled by device policy");
1710 ALOGE("%s: %s", __FUNCTION__, msg.string());
1711 return STATUS_ERROR(ERROR_DISABLED, msg.string());
1712 }
1713
Jayant Chowdhary8eb8d912021-05-18 17:41:56 +00001714 // enforce system camera permissions
1715 if (oomScoreOffset > 0 &&
1716 !hasPermissionsForSystemCamera(callingPid, CameraThreadState::getCallingUid())) {
1717 String8 msg =
1718 String8::format("Cannot change the priority of a client %s pid %d for "
1719 "camera id %s without SYSTEM_CAMERA permissions",
1720 String8(clientPackageNameAdj).string(), callingPid, id.string());
1721 ALOGE("%s: %s", __FUNCTION__, msg.string());
1722 return STATUS_ERROR(ERROR_PERMISSION_DENIED, msg.string());
1723 }
1724
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001725 ret = connectHelper<hardware::camera2::ICameraDeviceCallbacks,CameraDeviceClient>(cameraCb, id,
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08001726 /*api1CameraId*/-1, clientPackageNameAdj, systemNativeClient,clientFeatureId,
Jayant Chowdhary8eb8d912021-05-18 17:41:56 +00001727 clientUid, USE_CALLING_PID, API_2, /*shimUpdateOnly*/ false, oomScoreOffset,
Shuzhen Wangd4abdf72021-05-28 11:22:50 -07001728 targetSdkVersion, /*out*/client);
Ruben Brunkcc776712015-02-17 20:18:47 -08001729
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001730 if(!ret.isOk()) {
Jayant Chowdhary8eb8d912021-05-18 17:41:56 +00001731 logRejected(id, callingPid, String8(clientPackageNameAdj), ret.toString8());
Ruben Brunkcc776712015-02-17 20:18:47 -08001732 return ret;
Chien-Yu Chen88da5262015-02-17 13:56:46 -08001733 }
1734
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001735 *device = client;
Rucha Katakwardf223072021-06-15 10:21:00 -07001736 Mutex::Autolock lock(mServiceLock);
1737
1738 // Clear the previous cached logs and reposition the
1739 // file offset to beginning of the file to log new data.
1740 // If either truncate or lseek fails, close the previous file and create a new one.
1741 if ((ftruncate(mMemFd, 0) == -1) || (lseek(mMemFd, 0, SEEK_SET) == -1)) {
1742 ALOGE("%s: Error while truncating the file: %s", __FUNCTION__, sFileName);
1743 // Close the previous memfd.
1744 close(mMemFd);
1745 // If failure to wipe the data, then create a new file and
1746 // assign the new value to mMemFd.
1747 mMemFd = memfd_create(sFileName, MFD_ALLOW_SEALING);
1748 if (mMemFd == -1) {
1749 ALOGE("%s: Error while creating the file: %s", __FUNCTION__, sFileName);
1750 }
1751 }
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001752 return ret;
Chien-Yu Chen88da5262015-02-17 13:56:46 -08001753}
1754
Eino-Ville Talvala58106af2022-09-23 16:51:06 -07001755String16 CameraService::getPackageNameFromUid(int clientUid) {
1756 String16 packageName("");
1757
1758 sp<IServiceManager> sm = defaultServiceManager();
1759 sp<IBinder> binder = sm->getService(String16(kPermissionServiceName));
1760 if (binder == 0) {
1761 ALOGE("Cannot get permission service");
1762 // Return empty package name and the further interaction
1763 // with camera will likely fail
1764 return packageName;
1765 }
1766
1767 sp<IPermissionController> permCtrl = interface_cast<IPermissionController>(binder);
1768 Vector<String16> packages;
1769
1770 permCtrl->getPackagesForUid(clientUid, packages);
1771
1772 if (packages.isEmpty()) {
1773 ALOGE("No packages for calling UID %d", clientUid);
1774 // Return empty package name and the further interaction
1775 // with camera will likely fail
1776 return packageName;
1777 }
1778
1779 // Arbitrarily pick the first name in the list
1780 packageName = packages[0];
1781
1782 return packageName;
1783}
1784
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08001785template<class CALLBACK, class CLIENT>
1786Status CameraService::connectHelper(const sp<CALLBACK>& cameraCb, const String8& cameraId,
Eino-Ville Talvala58106af2022-09-23 16:51:06 -07001787 int api1CameraId, const String16& clientPackageNameMaybe, bool systemNativeClient,
Jooyung Hanb3f7cd22020-01-23 12:27:18 +09001788 const std::optional<String16>& clientFeatureId, int clientUid, int clientPid,
Shuzhen Wangd4abdf72021-05-28 11:22:50 -07001789 apiLevel effectiveApiLevel, bool shimUpdateOnly, int oomScoreOffset, int targetSdkVersion,
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08001790 /*out*/sp<CLIENT>& device) {
1791 binder::Status ret = binder::Status::ok();
1792
Eino-Ville Talvala58106af2022-09-23 16:51:06 -07001793 bool isNonSystemNdk = false;
1794 String16 clientPackageName;
1795 if (clientPackageNameMaybe.size() <= 0) {
1796 // NDK calls don't come with package names, but we need one for various cases.
1797 // Generally, there's a 1:1 mapping between UID and package name, but shared UIDs
1798 // do exist. For all authentication cases, all packages under the same UID get the
1799 // same permissions, so picking any associated package name is sufficient. For some
1800 // other cases, this may give inaccurate names for clients in logs.
1801 isNonSystemNdk = true;
1802 int packageUid = (clientUid == USE_CALLING_UID) ?
1803 CameraThreadState::getCallingUid() : clientUid;
1804 clientPackageName = getPackageNameFromUid(packageUid);
1805 } else {
1806 clientPackageName = clientPackageNameMaybe;
1807 }
1808
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08001809 String8 clientName8(clientPackageName);
1810
1811 int originalClientPid = 0;
1812
Eino-Ville Talvala58106af2022-09-23 16:51:06 -07001813 int packagePid = (clientPid == USE_CALLING_PID) ?
1814 CameraThreadState::getCallingPid() : clientPid;
Eino-Ville Talvalaa976df82019-06-13 18:01:58 -07001815 ALOGI("CameraService::connect call (PID %d \"%s\", camera ID %s) and "
Eino-Ville Talvala58106af2022-09-23 16:51:06 -07001816 "Camera API version %d", packagePid, clientName8.string(), cameraId.string(),
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08001817 static_cast<int>(effectiveApiLevel));
1818
Shuzhen Wang316781a2020-08-18 18:11:01 -07001819 nsecs_t openTimeNs = systemTime();
1820
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08001821 sp<CLIENT> client = nullptr;
Shuzhen Wang316781a2020-08-18 18:11:01 -07001822 int facing = -1;
Emilian Peevb91f1802021-03-23 14:50:28 -07001823 int orientation = 0;
Eino-Ville Talvala58106af2022-09-23 16:51:06 -07001824
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08001825 {
1826 // Acquire mServiceLock and prevent other clients from connecting
1827 std::unique_ptr<AutoConditionLock> lock =
1828 AutoConditionLock::waitAndAcquire(mServiceLockWrapper, DEFAULT_CONNECT_TIMEOUT_NS);
1829
1830 if (lock == nullptr) {
1831 ALOGE("CameraService::connect (PID %d) rejected (too many other clients connecting)."
1832 , clientPid);
1833 return STATUS_ERROR_FMT(ERROR_MAX_CAMERAS_IN_USE,
1834 "Cannot open camera %s for \"%s\" (PID %d): Too many other clients connecting",
1835 cameraId.string(), clientName8.string(), clientPid);
1836 }
1837
Eino-Ville Talvala0bdfa282020-06-19 13:54:35 -07001838 // Enforce client permissions and do basic validity checks
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08001839 if(!(ret = validateConnectLocked(cameraId, clientName8,
1840 /*inout*/clientUid, /*inout*/clientPid, /*out*/originalClientPid)).isOk()) {
1841 return ret;
1842 }
1843
1844 // Check the shim parameters after acquiring lock, if they have already been updated and
1845 // we were doing a shim update, return immediately
1846 if (shimUpdateOnly) {
1847 auto cameraState = getCameraState(cameraId);
1848 if (cameraState != nullptr) {
1849 if (!cameraState->getShimParams().isEmpty()) return ret;
1850 }
1851 }
1852
1853 status_t err;
1854
1855 sp<BasicClient> clientTmp = nullptr;
1856 std::shared_ptr<resource_policy::ClientDescriptor<String8, sp<BasicClient>>> partial;
1857 if ((err = handleEvictionsLocked(cameraId, originalClientPid, effectiveApiLevel,
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08001858 IInterface::asBinder(cameraCb), clientName8, oomScoreOffset, systemNativeClient,
1859 /*out*/&clientTmp, /*out*/&partial)) != NO_ERROR) {
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08001860 switch (err) {
1861 case -ENODEV:
1862 return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
1863 "No camera device with ID \"%s\" currently available",
1864 cameraId.string());
1865 case -EBUSY:
1866 return STATUS_ERROR_FMT(ERROR_CAMERA_IN_USE,
1867 "Higher-priority client using camera, ID \"%s\" currently unavailable",
1868 cameraId.string());
Yin-Chia Yeh8dfe4642020-06-01 11:57:45 -07001869 case -EUSERS:
1870 return STATUS_ERROR_FMT(ERROR_MAX_CAMERAS_IN_USE,
1871 "Too many cameras already open, cannot open camera \"%s\"",
1872 cameraId.string());
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08001873 default:
1874 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
1875 "Unexpected error %s (%d) opening camera \"%s\"",
1876 strerror(-err), err, cameraId.string());
1877 }
1878 }
1879
1880 if (clientTmp.get() != nullptr) {
1881 // Handle special case for API1 MediaRecorder where the existing client is returned
1882 device = static_cast<CLIENT*>(clientTmp.get());
1883 return ret;
1884 }
1885
1886 // give flashlight a chance to close devices if necessary.
1887 mFlashlight->prepareDeviceOpen(cameraId);
1888
Jayant Chowdharyffc5d682022-05-12 18:34:34 +00001889 auto deviceVersionAndTransport =
1890 getDeviceVersion(cameraId, /*out*/&facing, /*out*/&orientation);
Eino-Ville Talvala6963d0a2017-01-31 13:00:34 -08001891 if (facing == -1) {
1892 ALOGE("%s: Unable to get camera device \"%s\" facing", __FUNCTION__, cameraId.string());
1893 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
1894 "Unable to get camera device \"%s\" facing", cameraId.string());
1895 }
1896
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08001897 sp<BasicClient> tmp = nullptr;
Shuzhen Wangd4abdf72021-05-28 11:22:50 -07001898 bool overrideForPerfClass = SessionConfigurationUtils::targetPerfClassPrimaryCamera(
1899 mPerfClassPrimaryCameraIds, cameraId.string(), targetSdkVersion);
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08001900 if(!(ret = makeClient(this, cameraCb, clientPackageName, systemNativeClient,
1901 clientFeatureId, cameraId, api1CameraId, facing, orientation,
Shuzhen Wang06fcfb02018-07-30 18:23:31 -07001902 clientPid, clientUid, getpid(),
Jayant Chowdharyffc5d682022-05-12 18:34:34 +00001903 deviceVersionAndTransport, effectiveApiLevel, overrideForPerfClass,
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08001904 /*out*/&tmp)).isOk()) {
1905 return ret;
1906 }
1907 client = static_cast<CLIENT*>(tmp.get());
1908
1909 LOG_ALWAYS_FATAL_IF(client.get() == nullptr, "%s: CameraService in invalid state",
1910 __FUNCTION__);
1911
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07001912 String8 monitorTags = isClientWatched(client.get()) ? mMonitorTags : String8("");
1913 err = client->initialize(mCameraProviderManager, monitorTags);
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -08001914 if (err != OK) {
1915 ALOGE("%s: Could not initialize client from HAL.", __FUNCTION__);
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08001916 // Errors could be from the HAL module open call or from AppOpsManager
1917 switch(err) {
1918 case BAD_VALUE:
1919 return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
1920 "Illegal argument to HAL module for camera \"%s\"", cameraId.string());
1921 case -EBUSY:
1922 return STATUS_ERROR_FMT(ERROR_CAMERA_IN_USE,
1923 "Camera \"%s\" is already open", cameraId.string());
1924 case -EUSERS:
1925 return STATUS_ERROR_FMT(ERROR_MAX_CAMERAS_IN_USE,
1926 "Too many cameras already open, cannot open camera \"%s\"",
1927 cameraId.string());
1928 case PERMISSION_DENIED:
1929 return STATUS_ERROR_FMT(ERROR_PERMISSION_DENIED,
1930 "No permission to open camera \"%s\"", cameraId.string());
1931 case -EACCES:
1932 return STATUS_ERROR_FMT(ERROR_DISABLED,
1933 "Camera \"%s\" disabled by policy", cameraId.string());
1934 case -ENODEV:
1935 default:
1936 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
1937 "Failed to initialize camera \"%s\": %s (%d)", cameraId.string(),
1938 strerror(-err), err);
1939 }
1940 }
1941
1942 // Update shim paremeters for legacy clients
1943 if (effectiveApiLevel == API_1) {
1944 // Assume we have always received a Client subclass for API1
1945 sp<Client> shimClient = reinterpret_cast<Client*>(client.get());
1946 String8 rawParams = shimClient->getParameters();
1947 CameraParameters params(rawParams);
1948
1949 auto cameraState = getCameraState(cameraId);
1950 if (cameraState != nullptr) {
1951 cameraState->setShimParams(params);
1952 } else {
1953 ALOGE("%s: Cannot update shim parameters for camera %s, no such device exists.",
1954 __FUNCTION__, cameraId.string());
1955 }
1956 }
1957
Ravneet74cd3732022-03-30 05:33:03 +00001958 // Enable/disable camera service watchdog
1959 client->setCameraServiceWatchdog(mCameraServiceWatchdogEnabled);
1960
Eino-Ville Talvalaf2e37092020-01-07 15:32:32 -08001961 // Set rotate-and-crop override behavior
1962 if (mOverrideRotateAndCropMode != ANDROID_SCALER_ROTATE_AND_CROP_AUTO) {
1963 client->setRotateAndCropOverride(mOverrideRotateAndCropMode);
Emilian Peev13f35ad2022-04-27 11:28:48 -07001964 } else {
Emilian Peev065b2c12021-11-23 13:12:57 -08001965 client->setRotateAndCropOverride(
1966 CameraServiceProxyWrapper::getRotateAndCropOverride(
1967 clientPackageName, facing, multiuser_get_user_id(clientUid)));
Eino-Ville Talvalaf2e37092020-01-07 15:32:32 -08001968 }
1969
Eino-Ville Talvala305cec62020-11-12 14:18:17 -08001970 // Set camera muting behavior
Valentin Iftimec0b8d472021-07-23 20:21:06 +02001971 bool isCameraPrivacyEnabled =
Evan Seversond0b69922022-01-27 10:47:34 -08001972 mSensorPrivacyPolicy->isCameraPrivacyEnabled();
Eino-Ville Talvala305cec62020-11-12 14:18:17 -08001973 if (client->supportsCameraMute()) {
Valentin Iftimec0b8d472021-07-23 20:21:06 +02001974 client->setCameraMute(
1975 mOverrideCameraMuteMode || isCameraPrivacyEnabled);
1976 } else if (isCameraPrivacyEnabled) {
1977 // no camera mute supported, but privacy is on! => disconnect
1978 ALOGI("Camera mute not supported for package: %s, camera id: %s",
1979 String8(client->getPackageName()).string(), cameraId.string());
1980 // Do not hold mServiceLock while disconnecting clients, but
1981 // retain the condition blocking other clients from connecting
1982 // in mServiceLockWrapper if held.
1983 mServiceLock.unlock();
1984 // Clear caller identity temporarily so client disconnect PID
1985 // checks work correctly
1986 int64_t token = CameraThreadState::clearCallingIdentity();
1987 // Note AppOp to trigger the "Unblock" dialog
1988 client->noteAppOp();
1989 client->disconnect();
1990 CameraThreadState::restoreCallingIdentity(token);
1991 // Reacquire mServiceLock
1992 mServiceLock.lock();
1993
1994 return STATUS_ERROR_FMT(ERROR_DISABLED,
1995 "Camera \"%s\" disabled due to camera mute", cameraId.string());
Eino-Ville Talvala305cec62020-11-12 14:18:17 -08001996 }
1997
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08001998 if (shimUpdateOnly) {
1999 // If only updating legacy shim parameters, immediately disconnect client
2000 mServiceLock.unlock();
2001 client->disconnect();
2002 mServiceLock.lock();
2003 } else {
2004 // Otherwise, add client to active clients list
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08002005 finishConnectLocked(client, partial, oomScoreOffset, systemNativeClient);
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08002006 }
Shuzhen Wangabbcb6b2020-12-09 22:32:44 -08002007
2008 client->setImageDumpMask(mImageDumpMask);
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08002009 } // lock is destroyed, allow further connect calls
2010
2011 // Important: release the mutex here so the client can call back into the service from its
2012 // destructor (can be at the end of the call)
2013 device = client;
Shuzhen Wang316781a2020-08-18 18:11:01 -07002014
2015 int32_t openLatencyMs = ns2ms(systemTime() - openTimeNs);
2016 CameraServiceProxyWrapper::logOpen(cameraId, facing, clientPackageName,
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08002017 effectiveApiLevel, isNonSystemNdk, openLatencyMs);
Shuzhen Wang316781a2020-08-18 18:11:01 -07002018
Cliff Wud3a05312021-04-26 23:07:31 +08002019 {
2020 Mutex::Autolock lock(mInjectionParametersLock);
2021 if (cameraId == mInjectionInternalCamId && mInjectionInitPending) {
2022 mInjectionInitPending = false;
2023 status_t res = NO_ERROR;
2024 auto clientDescriptor = mActiveClientManager.get(mInjectionInternalCamId);
2025 if (clientDescriptor != nullptr) {
Cliff Wu646bd612021-11-23 23:21:29 +08002026 sp<BasicClient> clientSp = clientDescriptor->getValue();
2027 res = checkIfInjectionCameraIsPresent(mInjectionExternalCamId, clientSp);
2028 if(res != OK) {
2029 return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
2030 "No camera device with ID \"%s\" currently available",
2031 mInjectionExternalCamId.string());
2032 }
2033 res = clientSp->injectCamera(mInjectionExternalCamId, mCameraProviderManager);
Cliff Wud3a05312021-04-26 23:07:31 +08002034 if (res != OK) {
2035 mInjectionStatusListener->notifyInjectionError(mInjectionExternalCamId, res);
2036 }
2037 } else {
2038 ALOGE("%s: Internal camera ID = %s 's client does not exist!",
2039 __FUNCTION__, mInjectionInternalCamId.string());
2040 res = NO_INIT;
2041 mInjectionStatusListener->notifyInjectionError(mInjectionExternalCamId, res);
2042 }
2043 }
2044 }
2045
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08002046 return ret;
2047}
2048
Emilian Peevb2bc5a42019-11-20 16:02:14 -08002049status_t CameraService::addOfflineClient(String8 cameraId, sp<BasicClient> offlineClient) {
2050 if (offlineClient.get() == nullptr) {
2051 return BAD_VALUE;
2052 }
2053
2054 {
2055 // Acquire mServiceLock and prevent other clients from connecting
2056 std::unique_ptr<AutoConditionLock> lock =
2057 AutoConditionLock::waitAndAcquire(mServiceLockWrapper, DEFAULT_CONNECT_TIMEOUT_NS);
2058
2059 if (lock == nullptr) {
2060 ALOGE("%s: (PID %d) rejected (too many other clients connecting)."
2061 , __FUNCTION__, offlineClient->getClientPid());
2062 return TIMED_OUT;
2063 }
2064
2065 auto onlineClientDesc = mActiveClientManager.get(cameraId);
2066 if (onlineClientDesc.get() == nullptr) {
2067 ALOGE("%s: No active online client using camera id: %s", __FUNCTION__,
2068 cameraId.c_str());
2069 return BAD_VALUE;
2070 }
2071
2072 // Offline clients do not evict or conflict with other online devices. Resource sharing
2073 // conflicts are handled by the camera provider which will either succeed or fail before
2074 // reaching this method.
2075 const auto& onlinePriority = onlineClientDesc->getPriority();
2076 auto offlineClientDesc = CameraClientManager::makeClientDescriptor(
2077 kOfflineDevice + onlineClientDesc->getKey(), offlineClient, /*cost*/ 0,
2078 /*conflictingKeys*/ std::set<String8>(), onlinePriority.getScore(),
Jayant Chowdhary8eb8d912021-05-18 17:41:56 +00002079 onlineClientDesc->getOwnerId(), onlinePriority.getState(),
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08002080 // native clients don't have offline processing support.
2081 /*ommScoreOffset*/ 0, /*systemNativeClient*/false);
Emilian Peevb2bc5a42019-11-20 16:02:14 -08002082
2083 // Allow only one offline device per camera
2084 auto incompatibleClients = mActiveClientManager.getIncompatibleClients(offlineClientDesc);
2085 if (!incompatibleClients.empty()) {
2086 ALOGE("%s: Incompatible offline clients present!", __FUNCTION__);
2087 return BAD_VALUE;
2088 }
2089
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07002090 String8 monitorTags = isClientWatched(offlineClient.get()) ? mMonitorTags : String8("");
2091 auto err = offlineClient->initialize(mCameraProviderManager, monitorTags);
Emilian Peevb2bc5a42019-11-20 16:02:14 -08002092 if (err != OK) {
2093 ALOGE("%s: Could not initialize offline client.", __FUNCTION__);
2094 return err;
2095 }
2096
2097 auto evicted = mActiveClientManager.addAndEvict(offlineClientDesc);
2098 if (evicted.size() > 0) {
2099 for (auto& i : evicted) {
2100 ALOGE("%s: Invalid state: Offline client for camera %s was not removed ",
2101 __FUNCTION__, i->getKey().string());
2102 }
2103
2104 LOG_ALWAYS_FATAL("%s: Invalid state for CameraService, offline clients not evicted "
2105 "properly", __FUNCTION__);
2106
2107 return BAD_VALUE;
2108 }
2109
2110 logConnectedOffline(offlineClientDesc->getKey(),
2111 static_cast<int>(offlineClientDesc->getOwnerId()),
2112 String8(offlineClient->getPackageName()));
2113
2114 sp<IBinder> remoteCallback = offlineClient->getRemote();
2115 if (remoteCallback != nullptr) {
2116 remoteCallback->linkToDeath(this);
2117 }
2118 } // lock is destroyed, allow further connect calls
2119
2120 return OK;
2121}
2122
Rucha Katakwar38284522021-11-10 11:25:21 -08002123Status CameraService::turnOnTorchWithStrengthLevel(const String16& cameraId, int32_t torchStrength,
2124 const sp<IBinder>& clientBinder) {
2125 Mutex::Autolock lock(mServiceLock);
2126
2127 ATRACE_CALL();
2128 if (clientBinder == nullptr) {
2129 ALOGE("%s: torch client binder is NULL", __FUNCTION__);
2130 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT,
2131 "Torch client binder in null.");
2132 }
2133
2134 String8 id = String8(cameraId.string());
2135 int uid = CameraThreadState::getCallingUid();
2136
2137 if (shouldRejectSystemCameraConnection(id)) {
2138 return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT, "Unable to change the strength level"
2139 "for system only device %s: ", id.string());
2140 }
2141
2142 // verify id is valid
2143 auto state = getCameraState(id);
2144 if (state == nullptr) {
2145 ALOGE("%s: camera id is invalid %s", __FUNCTION__, id.string());
2146 return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
2147 "Camera ID \"%s\" is a not valid camera ID", id.string());
2148 }
2149
2150 StatusInternal cameraStatus = state->getStatus();
2151 if (cameraStatus != StatusInternal::NOT_AVAILABLE &&
2152 cameraStatus != StatusInternal::PRESENT) {
2153 ALOGE("%s: camera id is invalid %s, status %d", __FUNCTION__, id.string(),
2154 (int)cameraStatus);
2155 return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
2156 "Camera ID \"%s\" is a not valid camera ID", id.string());
2157 }
2158
2159 {
2160 Mutex::Autolock al(mTorchStatusMutex);
2161 TorchModeStatus status;
2162 status_t err = getTorchStatusLocked(id, &status);
2163 if (err != OK) {
2164 if (err == NAME_NOT_FOUND) {
2165 return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
2166 "Camera \"%s\" does not have a flash unit", id.string());
2167 }
2168 ALOGE("%s: getting current torch status failed for camera %s",
2169 __FUNCTION__, id.string());
2170 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
2171 "Error changing torch strength level for camera \"%s\": %s (%d)",
2172 id.string(), strerror(-err), err);
2173 }
2174
2175 if (status == TorchModeStatus::NOT_AVAILABLE) {
2176 if (cameraStatus == StatusInternal::NOT_AVAILABLE) {
2177 ALOGE("%s: torch mode of camera %s is not available because "
2178 "camera is in use.", __FUNCTION__, id.string());
2179 return STATUS_ERROR_FMT(ERROR_CAMERA_IN_USE,
2180 "Torch for camera \"%s\" is not available due to an existing camera user",
2181 id.string());
2182 } else {
2183 ALOGE("%s: torch mode of camera %s is not available due to "
2184 "insufficient resources", __FUNCTION__, id.string());
2185 return STATUS_ERROR_FMT(ERROR_MAX_CAMERAS_IN_USE,
2186 "Torch for camera \"%s\" is not available due to insufficient resources",
2187 id.string());
2188 }
2189 }
2190 }
2191
2192 {
2193 Mutex::Autolock al(mTorchUidMapMutex);
2194 updateTorchUidMapLocked(cameraId, uid);
2195 }
2196 // Check if the current torch strength level is same as the new one.
2197 bool shouldSkipTorchStrengthUpdates = mCameraProviderManager->shouldSkipTorchStrengthUpdate(
2198 id.string(), torchStrength);
2199
2200 status_t err = mFlashlight->turnOnTorchWithStrengthLevel(id, torchStrength);
2201
2202 if (err != OK) {
2203 int32_t errorCode;
2204 String8 msg;
2205 switch (err) {
2206 case -ENOSYS:
2207 msg = String8::format("Camera \"%s\" has no flashlight.",
2208 id.string());
2209 errorCode = ERROR_ILLEGAL_ARGUMENT;
2210 break;
2211 case -EBUSY:
2212 msg = String8::format("Camera \"%s\" is in use",
2213 id.string());
2214 errorCode = ERROR_CAMERA_IN_USE;
2215 break;
Rucha Katakwar922fa9c2022-02-25 17:46:49 -08002216 case -EINVAL:
2217 msg = String8::format("Torch strength level %d is not within the "
2218 "valid range.", torchStrength);
2219 errorCode = ERROR_ILLEGAL_ARGUMENT;
2220 break;
Rucha Katakwar38284522021-11-10 11:25:21 -08002221 default:
2222 msg = String8::format("Changing torch strength level failed.");
2223 errorCode = ERROR_INVALID_OPERATION;
Rucha Katakwar38284522021-11-10 11:25:21 -08002224 }
2225 ALOGE("%s: %s", __FUNCTION__, msg.string());
2226 return STATUS_ERROR(errorCode, msg.string());
2227 }
2228
2229 {
2230 // update the link to client's death
2231 // Store the last client that turns on each camera's torch mode.
2232 Mutex::Autolock al(mTorchClientMapMutex);
2233 ssize_t index = mTorchClientMap.indexOfKey(id);
2234 if (index == NAME_NOT_FOUND) {
2235 mTorchClientMap.add(id, clientBinder);
2236 } else {
2237 mTorchClientMap.valueAt(index)->unlinkToDeath(this);
2238 mTorchClientMap.replaceValueAt(index, clientBinder);
2239 }
2240 clientBinder->linkToDeath(this);
2241 }
2242
2243 int clientPid = CameraThreadState::getCallingPid();
2244 const char *id_cstr = id.c_str();
2245 ALOGI("%s: Torch strength for camera id %s changed to %d for client PID %d",
2246 __FUNCTION__, id_cstr, torchStrength, clientPid);
2247 if (!shouldSkipTorchStrengthUpdates) {
2248 broadcastTorchStrengthLevel(id, torchStrength);
2249 }
2250 return Status::ok();
2251}
2252
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002253Status CameraService::setTorchMode(const String16& cameraId, bool enabled,
Chien-Yu Chen3068d732015-02-09 13:29:57 -08002254 const sp<IBinder>& clientBinder) {
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -08002255 Mutex::Autolock lock(mServiceLock);
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07002256
2257 ATRACE_CALL();
Ruben Brunk99e69712015-05-26 17:25:07 -07002258 if (enabled && clientBinder == nullptr) {
Chien-Yu Chen3068d732015-02-09 13:29:57 -08002259 ALOGE("%s: torch client binder is NULL", __FUNCTION__);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002260 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT,
2261 "Torch client Binder is null");
Chien-Yu Chen3068d732015-02-09 13:29:57 -08002262 }
2263
Chien-Yu Chen88da5262015-02-17 13:56:46 -08002264 String8 id = String8(cameraId.string());
Jayant Chowdhary12361932018-08-27 14:46:13 -07002265 int uid = CameraThreadState::getCallingUid();
Chien-Yu Chen88da5262015-02-17 13:56:46 -08002266
Jayant Chowdhary8c62d892021-03-31 02:13:46 -07002267 if (shouldRejectSystemCameraConnection(id)) {
2268 return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT, "Unable to set torch mode"
2269 " for system only device %s: ", id.string());
2270 }
Chien-Yu Chen88da5262015-02-17 13:56:46 -08002271 // verify id is valid.
Ruben Brunkcc776712015-02-17 20:18:47 -08002272 auto state = getCameraState(id);
2273 if (state == nullptr) {
Chien-Yu Chenf6463fc2015-04-07 15:11:31 -07002274 ALOGE("%s: camera id is invalid %s", __FUNCTION__, id.string());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002275 return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
2276 "Camera ID \"%s\" is a not valid camera ID", id.string());
Ruben Brunkcc776712015-02-17 20:18:47 -08002277 }
2278
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08002279 StatusInternal cameraStatus = state->getStatus();
2280 if (cameraStatus != StatusInternal::PRESENT &&
Yin-Chia Yeh52778d42016-12-22 18:20:43 -08002281 cameraStatus != StatusInternal::NOT_AVAILABLE) {
2282 ALOGE("%s: camera id is invalid %s, status %d", __FUNCTION__, id.string(), (int)cameraStatus);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002283 return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
2284 "Camera ID \"%s\" is a not valid camera ID", id.string());
Chien-Yu Chen88da5262015-02-17 13:56:46 -08002285 }
2286
2287 {
2288 Mutex::Autolock al(mTorchStatusMutex);
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08002289 TorchModeStatus status;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002290 status_t err = getTorchStatusLocked(id, &status);
2291 if (err != OK) {
2292 if (err == NAME_NOT_FOUND) {
2293 return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
2294 "Camera \"%s\" does not have a flash unit", id.string());
2295 }
Chien-Yu Chen88da5262015-02-17 13:56:46 -08002296 ALOGE("%s: getting current torch status failed for camera %s",
2297 __FUNCTION__, id.string());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002298 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
2299 "Error updating torch status for camera \"%s\": %s (%d)", id.string(),
2300 strerror(-err), err);
Chien-Yu Chen88da5262015-02-17 13:56:46 -08002301 }
2302
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08002303 if (status == TorchModeStatus::NOT_AVAILABLE) {
Yin-Chia Yeh52778d42016-12-22 18:20:43 -08002304 if (cameraStatus == StatusInternal::NOT_AVAILABLE) {
Chien-Yu Chen88da5262015-02-17 13:56:46 -08002305 ALOGE("%s: torch mode of camera %s is not available because "
2306 "camera is in use", __FUNCTION__, id.string());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002307 return STATUS_ERROR_FMT(ERROR_CAMERA_IN_USE,
2308 "Torch for camera \"%s\" is not available due to an existing camera user",
2309 id.string());
Chien-Yu Chen88da5262015-02-17 13:56:46 -08002310 } else {
2311 ALOGE("%s: torch mode of camera %s is not available due to "
2312 "insufficient resources", __FUNCTION__, id.string());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002313 return STATUS_ERROR_FMT(ERROR_MAX_CAMERAS_IN_USE,
2314 "Torch for camera \"%s\" is not available due to insufficient resources",
2315 id.string());
Chien-Yu Chen88da5262015-02-17 13:56:46 -08002316 }
2317 }
2318 }
2319
Ruben Brunk99e69712015-05-26 17:25:07 -07002320 {
2321 // Update UID map - this is used in the torch status changed callbacks, so must be done
2322 // before setTorchMode
Chien-Yu Chenfe751be2015-09-01 14:16:44 -07002323 Mutex::Autolock al(mTorchUidMapMutex);
Rucha Katakwar38284522021-11-10 11:25:21 -08002324 updateTorchUidMapLocked(cameraId, uid);
Ruben Brunk99e69712015-05-26 17:25:07 -07002325 }
2326
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002327 status_t err = mFlashlight->setTorchMode(id, enabled);
Ruben Brunk99e69712015-05-26 17:25:07 -07002328
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002329 if (err != OK) {
2330 int32_t errorCode;
2331 String8 msg;
2332 switch (err) {
2333 case -ENOSYS:
2334 msg = String8::format("Camera \"%s\" has no flashlight",
2335 id.string());
2336 errorCode = ERROR_ILLEGAL_ARGUMENT;
2337 break;
Dijack Dongc8a6f252021-09-17 16:21:16 +08002338 case -EBUSY:
2339 msg = String8::format("Camera \"%s\" is in use",
2340 id.string());
2341 errorCode = ERROR_CAMERA_IN_USE;
2342 break;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002343 default:
2344 msg = String8::format(
2345 "Setting torch mode of camera \"%s\" to %d failed: %s (%d)",
2346 id.string(), enabled, strerror(-err), err);
2347 errorCode = ERROR_INVALID_OPERATION;
2348 }
2349 ALOGE("%s: %s", __FUNCTION__, msg.string());
Rucha Katakward9ea6452021-05-06 11:57:16 -07002350 logServiceError(msg,errorCode);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002351 return STATUS_ERROR(errorCode, msg.string());
Chien-Yu Chen3068d732015-02-09 13:29:57 -08002352 }
2353
Chien-Yu Chen88da5262015-02-17 13:56:46 -08002354 {
2355 // update the link to client's death
2356 Mutex::Autolock al(mTorchClientMapMutex);
2357 ssize_t index = mTorchClientMap.indexOfKey(id);
2358 if (enabled) {
2359 if (index == NAME_NOT_FOUND) {
2360 mTorchClientMap.add(id, clientBinder);
2361 } else {
Ruben Brunk99e69712015-05-26 17:25:07 -07002362 mTorchClientMap.valueAt(index)->unlinkToDeath(this);
Chien-Yu Chen88da5262015-02-17 13:56:46 -08002363 mTorchClientMap.replaceValueAt(index, clientBinder);
2364 }
2365 clientBinder->linkToDeath(this);
2366 } else if (index != NAME_NOT_FOUND) {
Ruben Brunk99e69712015-05-26 17:25:07 -07002367 mTorchClientMap.valueAt(index)->unlinkToDeath(this);
Chien-Yu Chen3068d732015-02-09 13:29:57 -08002368 }
Chien-Yu Chen3068d732015-02-09 13:29:57 -08002369 }
2370
Jayant Chowdhary0e2eefd2019-04-18 14:05:43 -07002371 int clientPid = CameraThreadState::getCallingPid();
2372 const char *id_cstr = id.c_str();
2373 const char *torchState = enabled ? "on" : "off";
2374 ALOGI("Torch for camera id %s turned %s for client PID %d", id_cstr, torchState, clientPid);
2375 logTorchEvent(id_cstr, torchState , clientPid);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002376 return Status::ok();
Chien-Yu Chen3068d732015-02-09 13:29:57 -08002377}
2378
Rucha Katakwar38284522021-11-10 11:25:21 -08002379void CameraService::updateTorchUidMapLocked(const String16& cameraId, int uid) {
2380 String8 id = String8(cameraId.string());
2381 if (mTorchUidMap.find(id) == mTorchUidMap.end()) {
2382 mTorchUidMap[id].first = uid;
2383 mTorchUidMap[id].second = uid;
2384 } else {
2385 // Set the pending UID
2386 mTorchUidMap[id].first = uid;
2387 }
2388}
2389
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002390Status CameraService::notifySystemEvent(int32_t eventId,
2391 const std::vector<int32_t>& args) {
Jeongik Chaaa5e64c2018-11-17 05:08:04 +09002392 const int pid = CameraThreadState::getCallingPid();
2393 const int selfPid = getpid();
2394
2395 // Permission checks
2396 if (pid != selfPid) {
2397 // Ensure we're being called by system_server, or similar process with
2398 // permissions to notify the camera service about system events
Jayant Chowdhary5216b212019-07-17 09:26:23 -07002399 if (!checkCallingPermission(sCameraSendSystemEventsPermission)) {
Jeongik Chaaa5e64c2018-11-17 05:08:04 +09002400 const int uid = CameraThreadState::getCallingUid();
2401 ALOGE("Permission Denial: cannot send updates to camera service about system"
2402 " events from pid=%d, uid=%d", pid, uid);
2403 return STATUS_ERROR_FMT(ERROR_PERMISSION_DENIED,
Jeongik Chaaa1b8152018-11-21 10:02:25 +09002404 "No permission to send updates to camera service about system events"
2405 " from pid=%d, uid=%d", pid, uid);
Jeongik Chaaa5e64c2018-11-17 05:08:04 +09002406 }
2407 }
2408
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07002409 ATRACE_CALL();
2410
Ruben Brunk36597b22015-03-20 22:15:57 -07002411 switch(eventId) {
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002412 case ICameraService::EVENT_USER_SWITCHED: {
Michael Grooverd1d435a2018-12-18 17:39:42 -08002413 // Try to register for UID and sensor privacy policy updates, in case we're recovering
Eino-Ville Talvala8abec3f2018-03-20 11:07:00 -07002414 // from a system server crash
2415 mUidPolicy->registerSelf();
Michael Grooverd1d435a2018-12-18 17:39:42 -08002416 mSensorPrivacyPolicy->registerSelf();
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002417 doUserSwitch(/*newUserIds*/ args);
Ruben Brunk36597b22015-03-20 22:15:57 -07002418 break;
2419 }
Valentin Iftime29e2e152021-08-13 15:17:33 +02002420 case ICameraService::EVENT_USB_DEVICE_ATTACHED:
2421 case ICameraService::EVENT_USB_DEVICE_DETACHED: {
2422 // Notify CameraProviderManager for lazy HALs
2423 mCameraProviderManager->notifyUsbDeviceEvent(eventId,
2424 std::to_string(args[0]));
2425 break;
2426 }
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002427 case ICameraService::EVENT_NONE:
Ruben Brunk36597b22015-03-20 22:15:57 -07002428 default: {
2429 ALOGW("%s: Received invalid system event from system_server: %d", __FUNCTION__,
2430 eventId);
2431 break;
2432 }
2433 }
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002434 return Status::ok();
Ruben Brunk36597b22015-03-20 22:15:57 -07002435}
2436
Emilian Peev53722fa2019-02-22 17:47:20 -08002437void CameraService::notifyMonitoredUids() {
2438 Mutex::Autolock lock(mStatusListenerLock);
2439
2440 for (const auto& it : mListenerList) {
Jayant Chowdhary5216b212019-07-17 09:26:23 -07002441 auto ret = it->getListener()->onCameraAccessPrioritiesChanged();
Emilian Peev53722fa2019-02-22 17:47:20 -08002442 if (!ret.isOk()) {
2443 ALOGE("%s: Failed to trigger permission callback: %d", __FUNCTION__,
2444 ret.exceptionCode());
2445 }
2446 }
2447}
2448
Eino-Ville Talvala63f36112018-12-06 14:57:03 -08002449Status CameraService::notifyDeviceStateChange(int64_t newState) {
2450 const int pid = CameraThreadState::getCallingPid();
2451 const int selfPid = getpid();
2452
2453 // Permission checks
2454 if (pid != selfPid) {
2455 // Ensure we're being called by system_server, or similar process with
2456 // permissions to notify the camera service about system events
Jayant Chowdhary5216b212019-07-17 09:26:23 -07002457 if (!checkCallingPermission(sCameraSendSystemEventsPermission)) {
Eino-Ville Talvala63f36112018-12-06 14:57:03 -08002458 const int uid = CameraThreadState::getCallingUid();
2459 ALOGE("Permission Denial: cannot send updates to camera service about device"
2460 " state changes from pid=%d, uid=%d", pid, uid);
2461 return STATUS_ERROR_FMT(ERROR_PERMISSION_DENIED,
2462 "No permission to send updates to camera service about device state"
2463 " changes from pid=%d, uid=%d", pid, uid);
2464 }
2465 }
2466
2467 ATRACE_CALL();
2468
Jayant Chowdhary0bd38522021-11-05 17:49:27 -07002469 mCameraProviderManager->notifyDeviceStateChange(newState);
Eino-Ville Talvala63f36112018-12-06 14:57:03 -08002470
2471 return Status::ok();
2472}
2473
Emilian Peev8b64f282021-03-25 16:49:57 -07002474Status CameraService::notifyDisplayConfigurationChange() {
2475 ATRACE_CALL();
2476 const int callingPid = CameraThreadState::getCallingPid();
2477 const int selfPid = getpid();
2478
2479 // Permission checks
2480 if (callingPid != selfPid) {
2481 // Ensure we're being called by system_server, or similar process with
2482 // permissions to notify the camera service about system events
2483 if (!checkCallingPermission(sCameraSendSystemEventsPermission)) {
2484 const int uid = CameraThreadState::getCallingUid();
2485 ALOGE("Permission Denial: cannot send updates to camera service about orientation"
2486 " changes from pid=%d, uid=%d", callingPid, uid);
2487 return STATUS_ERROR_FMT(ERROR_PERMISSION_DENIED,
2488 "No permission to send updates to camera service about orientation"
2489 " changes from pid=%d, uid=%d", callingPid, uid);
2490 }
2491 }
2492
2493 Mutex::Autolock lock(mServiceLock);
2494
2495 // Don't do anything if rotate-and-crop override via cmd is active
2496 if (mOverrideRotateAndCropMode != ANDROID_SCALER_ROTATE_AND_CROP_AUTO) return Status::ok();
2497
2498 const auto clients = mActiveClientManager.getAll();
2499 for (auto& current : clients) {
2500 if (current != nullptr) {
2501 const auto basicClient = current->getValue();
Emilian Peev13f35ad2022-04-27 11:28:48 -07002502 if (basicClient.get() != nullptr) {
Emilian Peev065b2c12021-11-23 13:12:57 -08002503 basicClient->setRotateAndCropOverride(
2504 CameraServiceProxyWrapper::getRotateAndCropOverride(
2505 basicClient->getPackageName(),
2506 basicClient->getCameraFacing(),
2507 multiuser_get_user_id(basicClient->getClientUid())));
Emilian Peev8b64f282021-03-25 16:49:57 -07002508 }
2509 }
2510 }
2511
2512 return Status::ok();
2513}
2514
2515Status CameraService::getConcurrentCameraIds(
Jayant Chowdhary2bbdce42020-01-12 14:55:41 -08002516 std::vector<ConcurrentCameraIdCombination>* concurrentCameraIds) {
2517 ATRACE_CALL();
2518 if (!concurrentCameraIds) {
2519 ALOGE("%s: concurrentCameraIds is NULL", __FUNCTION__);
2520 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "concurrentCameraIds is NULL");
2521 }
2522
2523 if (!mInitialized) {
2524 ALOGE("%s: Camera HAL couldn't be initialized", __FUNCTION__);
Rucha Katakward9ea6452021-05-06 11:57:16 -07002525 logServiceError(String8::format("Camera subsystem is not available"),ERROR_DISCONNECTED);
Jayant Chowdhary2bbdce42020-01-12 14:55:41 -08002526 return STATUS_ERROR(ERROR_DISCONNECTED,
2527 "Camera subsystem is not available");
2528 }
2529 // First call into the provider and get the set of concurrent camera
2530 // combinations
2531 std::vector<std::unordered_set<std::string>> concurrentCameraCombinations =
Jayant Chowdharycad23c22020-03-10 15:04:59 -07002532 mCameraProviderManager->getConcurrentCameraIds();
Jayant Chowdhary2bbdce42020-01-12 14:55:41 -08002533 for (auto &combination : concurrentCameraCombinations) {
2534 std::vector<std::string> validCombination;
2535 for (auto &cameraId : combination) {
2536 // if the camera state is not present, skip
2537 String8 cameraIdStr(cameraId.c_str());
2538 auto state = getCameraState(cameraIdStr);
2539 if (state == nullptr) {
2540 ALOGW("%s: camera id %s does not exist", __FUNCTION__, cameraId.c_str());
2541 continue;
2542 }
2543 StatusInternal status = state->getStatus();
2544 if (status == StatusInternal::NOT_PRESENT || status == StatusInternal::ENUMERATING) {
2545 continue;
2546 }
2547 if (shouldRejectSystemCameraConnection(cameraIdStr)) {
2548 continue;
2549 }
2550 validCombination.push_back(cameraId);
2551 }
2552 if (validCombination.size() != 0) {
2553 concurrentCameraIds->push_back(std::move(validCombination));
2554 }
2555 }
2556 return Status::ok();
2557}
2558
2559Status CameraService::isConcurrentSessionConfigurationSupported(
2560 const std::vector<CameraIdAndSessionConfiguration>& cameraIdsAndSessionConfigurations,
Shuzhen Wangd4abdf72021-05-28 11:22:50 -07002561 int targetSdkVersion, /*out*/bool* isSupported) {
Jayant Chowdhary2bbdce42020-01-12 14:55:41 -08002562 if (!isSupported) {
2563 ALOGE("%s: isSupported is NULL", __FUNCTION__);
2564 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "isSupported is NULL");
2565 }
2566
2567 if (!mInitialized) {
2568 ALOGE("%s: Camera HAL couldn't be initialized", __FUNCTION__);
2569 return STATUS_ERROR(ERROR_DISCONNECTED,
2570 "Camera subsystem is not available");
2571 }
2572
2573 // Check for camera permissions
2574 int callingPid = CameraThreadState::getCallingPid();
2575 int callingUid = CameraThreadState::getCallingUid();
2576 if ((callingPid != getpid()) && !checkPermission(sCameraPermission, callingPid, callingUid)) {
2577 ALOGE("%s: pid %d doesn't have camera permissions", __FUNCTION__, callingPid);
2578 return STATUS_ERROR(ERROR_PERMISSION_DENIED,
2579 "android.permission.CAMERA needed to call"
2580 "isConcurrentSessionConfigurationSupported");
2581 }
2582
2583 status_t res =
2584 mCameraProviderManager->isConcurrentSessionConfigurationSupported(
Shuzhen Wangd4abdf72021-05-28 11:22:50 -07002585 cameraIdsAndSessionConfigurations, mPerfClassPrimaryCameraIds,
2586 targetSdkVersion, isSupported);
Jayant Chowdhary2bbdce42020-01-12 14:55:41 -08002587 if (res != OK) {
Rucha Katakward9ea6452021-05-06 11:57:16 -07002588 logServiceError(String8::format("Unable to query session configuration support"),
2589 ERROR_INVALID_OPERATION);
Jayant Chowdhary2bbdce42020-01-12 14:55:41 -08002590 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION, "Unable to query session configuration "
2591 "support %s (%d)", strerror(-res), res);
2592 }
2593 return Status::ok();
2594}
2595
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08002596Status CameraService::addListener(const sp<ICameraServiceListener>& listener,
2597 /*out*/
2598 std::vector<hardware::CameraStatus> *cameraStatuses) {
Jayant Chowdharyf949ddd2019-01-29 14:34:11 -08002599 return addListenerHelper(listener, cameraStatuses);
2600}
2601
Jayant Chowdhary32ced0e2021-04-09 14:00:22 -07002602binder::Status CameraService::addListenerTest(const sp<hardware::ICameraServiceListener>& listener,
2603 std::vector<hardware::CameraStatus>* cameraStatuses) {
2604 return addListenerHelper(listener, cameraStatuses, false, true);
2605}
2606
Jayant Chowdharyf949ddd2019-01-29 14:34:11 -08002607Status CameraService::addListenerHelper(const sp<ICameraServiceListener>& listener,
2608 /*out*/
2609 std::vector<hardware::CameraStatus> *cameraStatuses,
Jayant Chowdhary32ced0e2021-04-09 14:00:22 -07002610 bool isVendorListener, bool isProcessLocalTest) {
Jayant Chowdharyf949ddd2019-01-29 14:34:11 -08002611
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07002612 ATRACE_CALL();
2613
Igor Murashkinbfc99152013-02-27 12:55:20 -08002614 ALOGV("%s: Add listener %p", __FUNCTION__, listener.get());
Igor Murashkin634a5152013-02-20 17:15:11 -08002615
Ruben Brunk3450ba72015-06-16 11:00:37 -07002616 if (listener == nullptr) {
Igor Murashkinbd3e2e02014-03-17 13:01:41 -07002617 ALOGE("%s: Listener must not be null", __FUNCTION__);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002618 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "Null listener given to addListener");
Igor Murashkinbd3e2e02014-03-17 13:01:41 -07002619 }
2620
Jayant Chowdhary5216b212019-07-17 09:26:23 -07002621 auto clientUid = CameraThreadState::getCallingUid();
2622 auto clientPid = CameraThreadState::getCallingPid();
Shuzhen Wang695044d2020-03-06 09:02:23 -08002623 bool openCloseCallbackAllowed = checkPermission(sCameraOpenCloseListenerPermission,
Jayant Chowdharyc3198c32021-07-28 20:59:14 +00002624 clientPid, clientUid, /*logPermissionFailure*/false);
Jayant Chowdhary5216b212019-07-17 09:26:23 -07002625
Igor Murashkinbfc99152013-02-27 12:55:20 -08002626 Mutex::Autolock lock(mServiceLock);
2627
Ruben Brunkcc776712015-02-17 20:18:47 -08002628 {
2629 Mutex::Autolock lock(mStatusListenerLock);
Emilian Peev53722fa2019-02-22 17:47:20 -08002630 for (const auto &it : mListenerList) {
Jayant Chowdhary5216b212019-07-17 09:26:23 -07002631 if (IInterface::asBinder(it->getListener()) == IInterface::asBinder(listener)) {
Ruben Brunkcc776712015-02-17 20:18:47 -08002632 ALOGW("%s: Tried to add listener %p which was already subscribed",
2633 __FUNCTION__, listener.get());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002634 return STATUS_ERROR(ERROR_ALREADY_EXISTS, "Listener already registered");
Ruben Brunkcc776712015-02-17 20:18:47 -08002635 }
Igor Murashkinbfc99152013-02-27 12:55:20 -08002636 }
Ruben Brunkcc776712015-02-17 20:18:47 -08002637
Jayant Chowdhary5216b212019-07-17 09:26:23 -07002638 sp<ServiceListener> serviceListener =
Shuzhen Wang695044d2020-03-06 09:02:23 -08002639 new ServiceListener(this, listener, clientUid, clientPid, isVendorListener,
2640 openCloseCallbackAllowed);
Jayant Chowdhary32ced0e2021-04-09 14:00:22 -07002641 auto ret = serviceListener->initialize(isProcessLocalTest);
Emilian Peev53722fa2019-02-22 17:47:20 -08002642 if (ret != NO_ERROR) {
2643 String8 msg = String8::format("Failed to initialize service listener: %s (%d)",
2644 strerror(-ret), ret);
Rucha Katakward9ea6452021-05-06 11:57:16 -07002645 logServiceError(msg,ERROR_ILLEGAL_ARGUMENT);
Emilian Peev53722fa2019-02-22 17:47:20 -08002646 ALOGE("%s: %s", __FUNCTION__, msg.string());
2647 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, msg.string());
2648 }
Jayant Chowdhary5216b212019-07-17 09:26:23 -07002649 // The listener still needs to be added to the list of listeners, regardless of what
2650 // permissions the listener process has / whether it is a vendor listener. Since it might be
2651 // eligible to listen to other camera ids.
2652 mListenerList.emplace_back(serviceListener);
Emilian Peev53722fa2019-02-22 17:47:20 -08002653 mUidPolicy->registerMonitorUid(clientUid);
Igor Murashkinbfc99152013-02-27 12:55:20 -08002654 }
2655
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08002656 /* Collect current devices and status */
Igor Murashkincba2c162013-03-20 15:56:31 -07002657 {
Ruben Brunkcc776712015-02-17 20:18:47 -08002658 Mutex::Autolock lock(mCameraStatesLock);
2659 for (auto& i : mCameraStates) {
Shuzhen Wang43858162020-01-10 13:42:15 -08002660 cameraStatuses->emplace_back(i.first,
Shuzhen Wange7aa0342021-08-03 11:29:47 -07002661 mapToInterface(i.second->getStatus()), i.second->getUnavailablePhysicalIds(),
2662 openCloseCallbackAllowed ? i.second->getClientPackage() : String8::empty());
Igor Murashkincba2c162013-03-20 15:56:31 -07002663 }
2664 }
Jayant Chowdhary33e8ef82019-09-27 09:20:42 -07002665 // Remove the camera statuses that should be hidden from the client, we do
2666 // this after collecting the states in order to avoid holding
2667 // mCameraStatesLock and mInterfaceLock (held in getSystemCameraKind()) at
2668 // the same time.
2669 cameraStatuses->erase(std::remove_if(cameraStatuses->begin(), cameraStatuses->end(),
2670 [this, &isVendorListener, &clientPid, &clientUid](const hardware::CameraStatus& s) {
2671 SystemCameraKind deviceKind = SystemCameraKind::PUBLIC;
2672 if (getSystemCameraKind(s.cameraId, &deviceKind) != OK) {
2673 ALOGE("%s: Invalid camera id %s, skipping status update",
2674 __FUNCTION__, s.cameraId.c_str());
2675 return true;
2676 }
2677 return shouldSkipStatusUpdates(deviceKind, isVendorListener, clientPid,
2678 clientUid);}), cameraStatuses->end());
2679
Jayant Chowdhary8c62d892021-03-31 02:13:46 -07002680 //cameraStatuses will have non-eligible camera ids removed.
2681 std::set<String16> idsChosenForCallback;
2682 for (const auto &s : *cameraStatuses) {
2683 idsChosenForCallback.insert(String16(s.cameraId));
2684 }
Igor Murashkincba2c162013-03-20 15:56:31 -07002685
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08002686 /*
2687 * Immediately signal current torch status to this listener only
2688 * This may be a subset of all the devices, so don't include it in the response directly
2689 */
Chien-Yu Chen3068d732015-02-09 13:29:57 -08002690 {
2691 Mutex::Autolock al(mTorchStatusMutex);
2692 for (size_t i = 0; i < mTorchStatusMap.size(); i++ ) {
Chien-Yu Chen88da5262015-02-17 13:56:46 -08002693 String16 id = String16(mTorchStatusMap.keyAt(i).string());
Jayant Chowdhary8c62d892021-03-31 02:13:46 -07002694 // The camera id is visible to the client. Fine to send torch
2695 // callback.
2696 if (idsChosenForCallback.find(id) != idsChosenForCallback.end()) {
2697 listener->onTorchStatusChanged(mapToInterface(mTorchStatusMap.valueAt(i)), id);
2698 }
Chien-Yu Chen3068d732015-02-09 13:29:57 -08002699 }
Chien-Yu Chen3068d732015-02-09 13:29:57 -08002700 }
2701
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002702 return Status::ok();
Igor Murashkinbfc99152013-02-27 12:55:20 -08002703}
Ruben Brunkcc776712015-02-17 20:18:47 -08002704
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002705Status CameraService::removeListener(const sp<ICameraServiceListener>& listener) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07002706 ATRACE_CALL();
2707
Igor Murashkinbfc99152013-02-27 12:55:20 -08002708 ALOGV("%s: Remove listener %p", __FUNCTION__, listener.get());
2709
Igor Murashkinbd3e2e02014-03-17 13:01:41 -07002710 if (listener == 0) {
2711 ALOGE("%s: Listener must not be null", __FUNCTION__);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002712 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "Null listener given to removeListener");
Igor Murashkinbd3e2e02014-03-17 13:01:41 -07002713 }
2714
Igor Murashkinbfc99152013-02-27 12:55:20 -08002715 Mutex::Autolock lock(mServiceLock);
2716
Ruben Brunkcc776712015-02-17 20:18:47 -08002717 {
2718 Mutex::Autolock lock(mStatusListenerLock);
2719 for (auto it = mListenerList.begin(); it != mListenerList.end(); it++) {
Jayant Chowdhary5216b212019-07-17 09:26:23 -07002720 if (IInterface::asBinder((*it)->getListener()) == IInterface::asBinder(listener)) {
2721 mUidPolicy->unregisterMonitorUid((*it)->getListenerUid());
2722 IInterface::asBinder(listener)->unlinkToDeath(*it);
Ruben Brunkcc776712015-02-17 20:18:47 -08002723 mListenerList.erase(it);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002724 return Status::ok();
Ruben Brunkcc776712015-02-17 20:18:47 -08002725 }
Igor Murashkinbfc99152013-02-27 12:55:20 -08002726 }
2727 }
2728
2729 ALOGW("%s: Tried to remove a listener %p which was not subscribed",
2730 __FUNCTION__, listener.get());
2731
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002732 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "Unregistered listener given to removeListener");
Igor Murashkin634a5152013-02-20 17:15:11 -08002733}
2734
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002735Status CameraService::getLegacyParameters(int cameraId, /*out*/String16* parameters) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07002736
2737 ATRACE_CALL();
Igor Murashkin65d14b92014-06-17 12:03:20 -07002738 ALOGV("%s: for camera ID = %d", __FUNCTION__, cameraId);
2739
2740 if (parameters == NULL) {
2741 ALOGE("%s: parameters must not be null", __FUNCTION__);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002742 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "Parameters must not be null");
Igor Murashkin65d14b92014-06-17 12:03:20 -07002743 }
2744
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002745 Status ret = Status::ok();
Igor Murashkin65d14b92014-06-17 12:03:20 -07002746
2747 CameraParameters shimParams;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002748 if (!(ret = getLegacyParametersLazy(cameraId, /*out*/&shimParams)).isOk()) {
Igor Murashkin65d14b92014-06-17 12:03:20 -07002749 // Error logged by caller
2750 return ret;
2751 }
2752
2753 String8 shimParamsString8 = shimParams.flatten();
2754 String16 shimParamsString16 = String16(shimParamsString8);
2755
2756 *parameters = shimParamsString16;
2757
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002758 return ret;
Igor Murashkin65d14b92014-06-17 12:03:20 -07002759}
2760
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08002761Status CameraService::supportsCameraApi(const String16& cameraId, int apiVersion,
2762 /*out*/ bool *isSupported) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07002763 ATRACE_CALL();
2764
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -08002765 const String8 id = String8(cameraId);
2766
2767 ALOGV("%s: for camera ID = %s", __FUNCTION__, id.string());
Igor Murashkin65d14b92014-06-17 12:03:20 -07002768
2769 switch (apiVersion) {
2770 case API_VERSION_1:
2771 case API_VERSION_2:
2772 break;
2773 default:
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002774 String8 msg = String8::format("Unknown API version %d", apiVersion);
2775 ALOGE("%s: %s", __FUNCTION__, msg.string());
2776 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, msg.string());
Igor Murashkin65d14b92014-06-17 12:03:20 -07002777 }
2778
Jayant Chowdharyffc5d682022-05-12 18:34:34 +00002779 auto deviceVersionAndTransport = getDeviceVersion(id);
2780 if (deviceVersionAndTransport.first == -1) {
2781 String8 msg = String8::format("Unknown camera ID %s", id.string());
2782 ALOGE("%s: %s", __FUNCTION__, msg.string());
2783 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, msg.string());
2784 }
2785 if (deviceVersionAndTransport.second == IPCTransport::HIDL) {
2786 int deviceVersion = deviceVersionAndTransport.first;
2787 switch (deviceVersion) {
2788 case CAMERA_DEVICE_API_VERSION_1_0:
2789 case CAMERA_DEVICE_API_VERSION_3_0:
2790 case CAMERA_DEVICE_API_VERSION_3_1:
2791 if (apiVersion == API_VERSION_2) {
2792 ALOGV("%s: Camera id %s uses HAL version %d <3.2, doesn't support api2 without "
2793 "shim", __FUNCTION__, id.string(), deviceVersion);
2794 *isSupported = false;
2795 } else { // if (apiVersion == API_VERSION_1) {
2796 ALOGV("%s: Camera id %s uses older HAL before 3.2, but api1 is always "
2797 "supported", __FUNCTION__, id.string());
2798 *isSupported = true;
2799 }
2800 break;
2801 case CAMERA_DEVICE_API_VERSION_3_2:
2802 case CAMERA_DEVICE_API_VERSION_3_3:
2803 case CAMERA_DEVICE_API_VERSION_3_4:
2804 case CAMERA_DEVICE_API_VERSION_3_5:
2805 case CAMERA_DEVICE_API_VERSION_3_6:
2806 case CAMERA_DEVICE_API_VERSION_3_7:
2807 ALOGV("%s: Camera id %s uses HAL3.2 or newer, supports api1/api2 directly",
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -08002808 __FUNCTION__, id.string());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002809 *isSupported = true;
Jayant Chowdharyffc5d682022-05-12 18:34:34 +00002810 break;
2811 default: {
2812 String8 msg = String8::format("Unknown device version %x for device %s",
2813 deviceVersion, id.string());
2814 ALOGE("%s: %s", __FUNCTION__, msg.string());
2815 return STATUS_ERROR(ERROR_INVALID_OPERATION, msg.string());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002816 }
Igor Murashkin65d14b92014-06-17 12:03:20 -07002817 }
Jayant Chowdharyffc5d682022-05-12 18:34:34 +00002818 } else {
2819 *isSupported = true;
Igor Murashkin65d14b92014-06-17 12:03:20 -07002820 }
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002821 return Status::ok();
Igor Murashkin65d14b92014-06-17 12:03:20 -07002822}
2823
Shuzhen Wangf9d2c022018-08-21 12:07:35 -07002824Status CameraService::isHiddenPhysicalCamera(const String16& cameraId,
2825 /*out*/ bool *isSupported) {
2826 ATRACE_CALL();
2827
2828 const String8 id = String8(cameraId);
2829
2830 ALOGV("%s: for camera ID = %s", __FUNCTION__, id.string());
2831 *isSupported = mCameraProviderManager->isHiddenPhysicalCamera(id.string());
2832
2833 return Status::ok();
2834}
2835
Cliff Wud8cae102021-03-11 01:37:42 +08002836Status CameraService::injectCamera(
2837 const String16& packageName, const String16& internalCamId,
2838 const String16& externalCamId,
2839 const sp<ICameraInjectionCallback>& callback,
2840 /*out*/
Cliff Wud3a05312021-04-26 23:07:31 +08002841 sp<ICameraInjectionSession>* cameraInjectionSession) {
Cliff Wud8cae102021-03-11 01:37:42 +08002842 ATRACE_CALL();
2843
2844 if (!checkCallingPermission(sCameraInjectExternalCameraPermission)) {
2845 const int pid = CameraThreadState::getCallingPid();
2846 const int uid = CameraThreadState::getCallingUid();
2847 ALOGE("Permission Denial: can't inject camera pid=%d, uid=%d", pid, uid);
2848 return STATUS_ERROR(ERROR_PERMISSION_DENIED,
2849 "Permission Denial: no permission to inject camera");
2850 }
2851
2852 ALOGV(
2853 "%s: Package name = %s, Internal camera ID = %s, External camera ID = "
2854 "%s",
2855 __FUNCTION__, String8(packageName).string(),
2856 String8(internalCamId).string(), String8(externalCamId).string());
2857
Cliff Wud3a05312021-04-26 23:07:31 +08002858 {
2859 Mutex::Autolock lock(mInjectionParametersLock);
2860 mInjectionInternalCamId = String8(internalCamId);
2861 mInjectionExternalCamId = String8(externalCamId);
Cliff Wu646bd612021-11-23 23:21:29 +08002862 mInjectionStatusListener->addListener(callback);
2863 *cameraInjectionSession = new CameraInjectionSession(this);
Cliff Wud3a05312021-04-26 23:07:31 +08002864 status_t res = NO_ERROR;
2865 auto clientDescriptor = mActiveClientManager.get(mInjectionInternalCamId);
2866 // If the client already exists, we can directly connect to the camera device through the
2867 // client's injectCamera(), otherwise we need to wait until the client is established
2868 // (execute connectHelper()) before injecting the camera to the camera device.
2869 if (clientDescriptor != nullptr) {
2870 mInjectionInitPending = false;
Cliff Wu646bd612021-11-23 23:21:29 +08002871 sp<BasicClient> clientSp = clientDescriptor->getValue();
2872 res = checkIfInjectionCameraIsPresent(mInjectionExternalCamId, clientSp);
2873 if(res != OK) {
2874 return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
2875 "No camera device with ID \"%s\" currently available",
2876 mInjectionExternalCamId.string());
2877 }
2878 res = clientSp->injectCamera(mInjectionExternalCamId, mCameraProviderManager);
Cliff Wud3a05312021-04-26 23:07:31 +08002879 if(res != OK) {
2880 mInjectionStatusListener->notifyInjectionError(mInjectionExternalCamId, res);
2881 }
2882 } else {
2883 mInjectionInitPending = true;
2884 }
2885 }
Cliff Wud8cae102021-03-11 01:37:42 +08002886
Cliff Wud3a05312021-04-26 23:07:31 +08002887 return binder::Status::ok();
Cliff Wud8cae102021-03-11 01:37:42 +08002888}
2889
Ruben Brunkcc776712015-02-17 20:18:47 -08002890void CameraService::removeByClient(const BasicClient* client) {
Igor Murashkinecf17e82012-10-02 16:05:11 -07002891 Mutex::Autolock lock(mServiceLock);
Ruben Brunkcc776712015-02-17 20:18:47 -08002892 for (auto& i : mActiveClientManager.getAll()) {
2893 auto clientSp = i->getValue();
2894 if (clientSp.get() == client) {
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07002895 cacheClientTagDumpIfNeeded(client->mCameraIdStr, clientSp.get());
Ruben Brunkcc776712015-02-17 20:18:47 -08002896 mActiveClientManager.remove(i);
Igor Murashkin634a5152013-02-20 17:15:11 -08002897 }
Igor Murashkinecf17e82012-10-02 16:05:11 -07002898 }
Yin-Chia Yehdba03232019-08-19 15:54:28 -07002899 updateAudioRestrictionLocked();
Igor Murashkin634a5152013-02-20 17:15:11 -08002900}
2901
Ruben Brunkcc776712015-02-17 20:18:47 -08002902bool CameraService::evictClientIdByRemote(const wp<IBinder>& remote) {
Ruben Brunkcc776712015-02-17 20:18:47 -08002903 bool ret = false;
2904 {
2905 // Acquire mServiceLock and prevent other clients from connecting
2906 std::unique_ptr<AutoConditionLock> lock =
2907 AutoConditionLock::waitAndAcquire(mServiceLockWrapper);
Igor Murashkin634a5152013-02-20 17:15:11 -08002908
Igor Murashkin634a5152013-02-20 17:15:11 -08002909
Ruben Brunkcc776712015-02-17 20:18:47 -08002910 std::vector<sp<BasicClient>> evicted;
2911 for (auto& i : mActiveClientManager.getAll()) {
2912 auto clientSp = i->getValue();
2913 if (clientSp.get() == nullptr) {
2914 ALOGE("%s: Dead client still in mActiveClientManager.", __FUNCTION__);
2915 mActiveClientManager.remove(i);
2916 continue;
2917 }
Yin-Chia Yehdbfcb382018-02-16 11:17:36 -08002918 if (remote == clientSp->getRemote()) {
Ruben Brunkcc776712015-02-17 20:18:47 -08002919 mActiveClientManager.remove(i);
2920 evicted.push_back(clientSp);
Igor Murashkin634a5152013-02-20 17:15:11 -08002921
Ruben Brunkcc776712015-02-17 20:18:47 -08002922 // Notify the client of disconnection
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002923 clientSp->notifyError(
2924 hardware::camera2::ICameraDeviceCallbacks::ERROR_CAMERA_DISCONNECTED,
Ruben Brunkcc776712015-02-17 20:18:47 -08002925 CaptureResultExtras());
Igor Murashkin634a5152013-02-20 17:15:11 -08002926 }
2927 }
2928
Ruben Brunkcc776712015-02-17 20:18:47 -08002929 // Do not hold mServiceLock while disconnecting clients, but retain the condition blocking
2930 // other clients from connecting in mServiceLockWrapper if held
2931 mServiceLock.unlock();
2932
Ruben Brunk36597b22015-03-20 22:15:57 -07002933 // Do not clear caller identity, remote caller should be client proccess
2934
Ruben Brunkcc776712015-02-17 20:18:47 -08002935 for (auto& i : evicted) {
2936 if (i.get() != nullptr) {
2937 i->disconnect();
2938 ret = true;
2939 }
Igor Murashkin634a5152013-02-20 17:15:11 -08002940 }
2941
Ruben Brunkcc776712015-02-17 20:18:47 -08002942 // Reacquire mServiceLock
2943 mServiceLock.lock();
Igor Murashkin634a5152013-02-20 17:15:11 -08002944
Ruben Brunkcc776712015-02-17 20:18:47 -08002945 } // lock is destroyed, allow further connect calls
2946
2947 return ret;
Igor Murashkinecf17e82012-10-02 16:05:11 -07002948}
2949
Ruben Brunkcc776712015-02-17 20:18:47 -08002950std::shared_ptr<CameraService::CameraState> CameraService::getCameraState(
2951 const String8& cameraId) const {
2952 std::shared_ptr<CameraState> state;
2953 {
2954 Mutex::Autolock lock(mCameraStatesLock);
2955 auto iter = mCameraStates.find(cameraId);
2956 if (iter != mCameraStates.end()) {
2957 state = iter->second;
Mathias Agopian65ab4712010-07-14 17:59:35 -07002958 }
2959 }
Ruben Brunkcc776712015-02-17 20:18:47 -08002960 return state;
Mathias Agopian65ab4712010-07-14 17:59:35 -07002961}
2962
Ruben Brunkcc776712015-02-17 20:18:47 -08002963sp<CameraService::BasicClient> CameraService::removeClientLocked(const String8& cameraId) {
2964 // Remove from active clients list
2965 auto clientDescriptorPtr = mActiveClientManager.remove(cameraId);
2966 if (clientDescriptorPtr == nullptr) {
2967 ALOGW("%s: Could not evict client, no client for camera ID %s", __FUNCTION__,
2968 cameraId.string());
2969 return sp<BasicClient>{nullptr};
2970 }
2971
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07002972 sp<BasicClient> client = clientDescriptorPtr->getValue();
2973 if (client.get() != nullptr) {
2974 cacheClientTagDumpIfNeeded(clientDescriptorPtr->getKey(), client.get());
2975 }
2976 return client;
Keun young Parkd8973a72012-03-28 14:13:09 -07002977}
2978
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002979void CameraService::doUserSwitch(const std::vector<int32_t>& newUserIds) {
Ruben Brunk36597b22015-03-20 22:15:57 -07002980 // Acquire mServiceLock and prevent other clients from connecting
2981 std::unique_ptr<AutoConditionLock> lock =
2982 AutoConditionLock::waitAndAcquire(mServiceLockWrapper);
2983
Ruben Brunk6267b532015-04-30 17:44:07 -07002984 std::set<userid_t> newAllowedUsers;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002985 for (size_t i = 0; i < newUserIds.size(); i++) {
2986 if (newUserIds[i] < 0) {
Ruben Brunk6267b532015-04-30 17:44:07 -07002987 ALOGE("%s: Bad user ID %d given during user switch, ignoring.",
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002988 __FUNCTION__, newUserIds[i]);
Ruben Brunk6267b532015-04-30 17:44:07 -07002989 return;
2990 }
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002991 newAllowedUsers.insert(static_cast<userid_t>(newUserIds[i]));
Ruben Brunk36597b22015-03-20 22:15:57 -07002992 }
2993
Ruben Brunka8ca9152015-04-07 14:23:40 -07002994
Ruben Brunk6267b532015-04-30 17:44:07 -07002995 if (newAllowedUsers == mAllowedUsers) {
2996 ALOGW("%s: Received notification of user switch with no updated user IDs.", __FUNCTION__);
2997 return;
2998 }
2999
3000 logUserSwitch(mAllowedUsers, newAllowedUsers);
3001
3002 mAllowedUsers = std::move(newAllowedUsers);
Ruben Brunk36597b22015-03-20 22:15:57 -07003003
3004 // Current user has switched, evict all current clients.
3005 std::vector<sp<BasicClient>> evicted;
3006 for (auto& i : mActiveClientManager.getAll()) {
3007 auto clientSp = i->getValue();
3008
3009 if (clientSp.get() == nullptr) {
3010 ALOGE("%s: Dead client still in mActiveClientManager.", __FUNCTION__);
3011 continue;
3012 }
3013
Ruben Brunk6267b532015-04-30 17:44:07 -07003014 // Don't evict clients that are still allowed.
3015 uid_t clientUid = clientSp->getClientUid();
3016 userid_t clientUserId = multiuser_get_user_id(clientUid);
3017 if (mAllowedUsers.find(clientUserId) != mAllowedUsers.end()) {
3018 continue;
3019 }
3020
Ruben Brunk36597b22015-03-20 22:15:57 -07003021 evicted.push_back(clientSp);
3022
3023 String8 curTime = getFormattedCurrentTime();
3024
3025 ALOGE("Evicting conflicting client for camera ID %s due to user change",
3026 i->getKey().string());
Ruben Brunka8ca9152015-04-07 14:23:40 -07003027
Ruben Brunk36597b22015-03-20 22:15:57 -07003028 // Log the clients evicted
Ruben Brunka8ca9152015-04-07 14:23:40 -07003029 logEvent(String8::format("EVICT device %s client held by package %s (PID %"
Emilian Peev8131a262017-02-01 12:33:43 +00003030 PRId32 ", score %" PRId32 ", state %" PRId32 ")\n - Evicted due"
3031 " to user switch.", i->getKey().string(),
3032 String8{clientSp->getPackageName()}.string(),
3033 i->getOwnerId(), i->getPriority().getScore(),
3034 i->getPriority().getState()));
Ruben Brunk36597b22015-03-20 22:15:57 -07003035
3036 }
3037
3038 // Do not hold mServiceLock while disconnecting clients, but retain the condition
3039 // blocking other clients from connecting in mServiceLockWrapper if held.
3040 mServiceLock.unlock();
3041
3042 // Clear caller identity temporarily so client disconnect PID checks work correctly
Jayant Chowdhary12361932018-08-27 14:46:13 -07003043 int64_t token = CameraThreadState::clearCallingIdentity();
Ruben Brunk36597b22015-03-20 22:15:57 -07003044
3045 for (auto& i : evicted) {
3046 i->disconnect();
3047 }
3048
Jayant Chowdhary12361932018-08-27 14:46:13 -07003049 CameraThreadState::restoreCallingIdentity(token);
Ruben Brunk36597b22015-03-20 22:15:57 -07003050
3051 // Reacquire mServiceLock
3052 mServiceLock.lock();
3053}
Ruben Brunkcc776712015-02-17 20:18:47 -08003054
Ruben Brunka8ca9152015-04-07 14:23:40 -07003055void CameraService::logEvent(const char* event) {
Ruben Brunkcc776712015-02-17 20:18:47 -08003056 String8 curTime = getFormattedCurrentTime();
Ruben Brunka8ca9152015-04-07 14:23:40 -07003057 Mutex::Autolock l(mLogLock);
Rucha Katakward9ea6452021-05-06 11:57:16 -07003058 String8 msg = String8::format("%s : %s", curTime.string(), event);
3059 // For service error events, print the msg only once.
3060 if(!msg.contains("SERVICE ERROR")) {
3061 mEventLog.add(msg);
3062 } else if(sServiceErrorEventSet.find(msg) == sServiceErrorEventSet.end()) {
3063 // Error event not added to the dumpsys log before
3064 mEventLog.add(msg);
3065 sServiceErrorEventSet.insert(msg);
3066 }
Mathias Agopian65ab4712010-07-14 17:59:35 -07003067}
3068
Ruben Brunka8ca9152015-04-07 14:23:40 -07003069void CameraService::logDisconnected(const char* cameraId, int clientPid,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00003070 const char* clientPackage) {
Ruben Brunkcc776712015-02-17 20:18:47 -08003071 // Log the clients evicted
Ruben Brunka8ca9152015-04-07 14:23:40 -07003072 logEvent(String8::format("DISCONNECT device %s client for package %s (PID %d)", cameraId,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00003073 clientPackage, clientPid));
Ruben Brunka8ca9152015-04-07 14:23:40 -07003074}
3075
Emilian Peevb2bc5a42019-11-20 16:02:14 -08003076void CameraService::logDisconnectedOffline(const char* cameraId, int clientPid,
3077 const char* clientPackage) {
3078 // Log the clients evicted
3079 logEvent(String8::format("DISCONNECT offline device %s client for package %s (PID %d)",
3080 cameraId, clientPackage, clientPid));
3081}
3082
Ruben Brunka8ca9152015-04-07 14:23:40 -07003083void CameraService::logConnected(const char* cameraId, int clientPid,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00003084 const char* clientPackage) {
Ruben Brunka8ca9152015-04-07 14:23:40 -07003085 // Log the clients evicted
3086 logEvent(String8::format("CONNECT device %s client for package %s (PID %d)", cameraId,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00003087 clientPackage, clientPid));
Ruben Brunka8ca9152015-04-07 14:23:40 -07003088}
3089
Emilian Peevb2bc5a42019-11-20 16:02:14 -08003090void CameraService::logConnectedOffline(const char* cameraId, int clientPid,
3091 const char* clientPackage) {
3092 // Log the clients evicted
3093 logEvent(String8::format("CONNECT offline device %s client for package %s (PID %d)", cameraId,
3094 clientPackage, clientPid));
3095}
3096
Ruben Brunka8ca9152015-04-07 14:23:40 -07003097void CameraService::logRejected(const char* cameraId, int clientPid,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00003098 const char* clientPackage, const char* reason) {
Ruben Brunka8ca9152015-04-07 14:23:40 -07003099 // Log the client rejected
3100 logEvent(String8::format("REJECT device %s client for package %s (PID %d), reason: (%s)",
Svetoslav Ganov280405a2015-05-12 02:19:27 +00003101 cameraId, clientPackage, clientPid, reason));
Ruben Brunka8ca9152015-04-07 14:23:40 -07003102}
3103
Jayant Chowdhary0e2eefd2019-04-18 14:05:43 -07003104void CameraService::logTorchEvent(const char* cameraId, const char *torchState, int clientPid) {
3105 // Log torch event
3106 logEvent(String8::format("Torch for camera id %s turned %s for client PID %d", cameraId,
3107 torchState, clientPid));
3108}
3109
Ruben Brunk6267b532015-04-30 17:44:07 -07003110void CameraService::logUserSwitch(const std::set<userid_t>& oldUserIds,
3111 const std::set<userid_t>& newUserIds) {
3112 String8 newUsers = toString(newUserIds);
3113 String8 oldUsers = toString(oldUserIds);
Eino-Ville Talvalad00111e2017-01-31 11:59:12 -08003114 if (oldUsers.size() == 0) {
3115 oldUsers = "<None>";
3116 }
Ruben Brunka8ca9152015-04-07 14:23:40 -07003117 // Log the new and old users
Eino-Ville Talvalad00111e2017-01-31 11:59:12 -08003118 logEvent(String8::format("USER_SWITCH previous allowed user IDs: %s, current allowed user IDs: %s",
Ruben Brunk6267b532015-04-30 17:44:07 -07003119 oldUsers.string(), newUsers.string()));
Ruben Brunka8ca9152015-04-07 14:23:40 -07003120}
3121
3122void CameraService::logDeviceRemoved(const char* cameraId, const char* reason) {
3123 // Log the device removal
3124 logEvent(String8::format("REMOVE device %s, reason: (%s)", cameraId, reason));
3125}
3126
3127void CameraService::logDeviceAdded(const char* cameraId, const char* reason) {
3128 // Log the device removal
3129 logEvent(String8::format("ADD device %s, reason: (%s)", cameraId, reason));
3130}
3131
3132void CameraService::logClientDied(int clientPid, const char* reason) {
3133 // Log the device removal
3134 logEvent(String8::format("DIED client(s) with PID %d, reason: (%s)", clientPid, reason));
Igor Murashkinecf17e82012-10-02 16:05:11 -07003135}
3136
Eino-Ville Talvala1527f072015-04-07 15:55:31 -07003137void CameraService::logServiceError(const char* msg, int errorCode) {
3138 String8 curTime = getFormattedCurrentTime();
Eino-Ville Talvalad309fb92015-11-25 12:12:45 -08003139 logEvent(String8::format("SERVICE ERROR: %s : %d (%s)", msg, errorCode, strerror(-errorCode)));
Eino-Ville Talvala1527f072015-04-07 15:55:31 -07003140}
3141
Ruben Brunk36597b22015-03-20 22:15:57 -07003142status_t CameraService::onTransact(uint32_t code, const Parcel& data, Parcel* reply,
3143 uint32_t flags) {
3144
Mathias Agopian65ab4712010-07-14 17:59:35 -07003145 // Permission checks
3146 switch (code) {
Svet Ganova453d0d2018-01-11 15:37:58 -08003147 case SHELL_COMMAND_TRANSACTION: {
3148 int in = data.readFileDescriptor();
3149 int out = data.readFileDescriptor();
3150 int err = data.readFileDescriptor();
3151 int argc = data.readInt32();
3152 Vector<String16> args;
3153 for (int i = 0; i < argc && data.dataAvail() > 0; i++) {
3154 args.add(data.readString16());
3155 }
3156 sp<IBinder> unusedCallback;
3157 sp<IResultReceiver> resultReceiver;
3158 status_t status;
3159 if ((status = data.readNullableStrongBinder(&unusedCallback)) != NO_ERROR) {
3160 return status;
3161 }
3162 if ((status = data.readNullableStrongBinder(&resultReceiver)) != NO_ERROR) {
3163 return status;
3164 }
3165 status = shellCommand(in, out, err, args);
3166 if (resultReceiver != nullptr) {
3167 resultReceiver->send(status);
3168 }
3169 return NO_ERROR;
3170 }
Mathias Agopian65ab4712010-07-14 17:59:35 -07003171 }
3172
3173 return BnCameraService::onTransact(code, data, reply, flags);
3174}
3175
Mathias Agopian65ab4712010-07-14 17:59:35 -07003176// We share the media players for shutter and recording sound for all clients.
3177// A reference count is kept to determine when we will actually release the
3178// media players.
3179
Jaekyun Seokef498052018-03-23 13:09:44 +09003180sp<MediaPlayer> CameraService::newMediaPlayer(const char *file) {
3181 sp<MediaPlayer> mp = new MediaPlayer();
3182 status_t error;
3183 if ((error = mp->setDataSource(NULL /* httpService */, file, NULL)) == NO_ERROR) {
Eino-Ville Talvala60a78ac2012-01-05 15:34:53 -08003184 mp->setAudioStreamType(AUDIO_STREAM_ENFORCED_AUDIBLE);
Jaekyun Seokef498052018-03-23 13:09:44 +09003185 error = mp->prepare();
3186 }
3187 if (error != NO_ERROR) {
Steve Block29357bc2012-01-06 19:20:56 +00003188 ALOGE("Failed to load CameraService sounds: %s", file);
Jaekyun Seokef498052018-03-23 13:09:44 +09003189 mp->disconnect();
3190 mp.clear();
Jaekyun Seok59a8ef02018-01-15 14:49:05 +09003191 return nullptr;
Mathias Agopian65ab4712010-07-14 17:59:35 -07003192 }
3193 return mp;
3194}
3195
username5755fea2018-12-27 09:48:08 +08003196void CameraService::increaseSoundRef() {
3197 Mutex::Autolock lock(mSoundLock);
3198 mSoundRef++;
3199}
3200
3201void CameraService::loadSoundLocked(sound_kind kind) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07003202 ATRACE_CALL();
3203
username5755fea2018-12-27 09:48:08 +08003204 LOG1("CameraService::loadSoundLocked ref=%d", mSoundRef);
3205 if (SOUND_SHUTTER == kind && mSoundPlayer[SOUND_SHUTTER] == NULL) {
3206 mSoundPlayer[SOUND_SHUTTER] = newMediaPlayer("/product/media/audio/ui/camera_click.ogg");
3207 if (mSoundPlayer[SOUND_SHUTTER] == nullptr) {
3208 mSoundPlayer[SOUND_SHUTTER] = newMediaPlayer("/system/media/audio/ui/camera_click.ogg");
3209 }
3210 } else if (SOUND_RECORDING_START == kind && mSoundPlayer[SOUND_RECORDING_START] == NULL) {
3211 mSoundPlayer[SOUND_RECORDING_START] = newMediaPlayer("/product/media/audio/ui/VideoRecord.ogg");
3212 if (mSoundPlayer[SOUND_RECORDING_START] == nullptr) {
3213 mSoundPlayer[SOUND_RECORDING_START] =
Jaekyun Seok59a8ef02018-01-15 14:49:05 +09003214 newMediaPlayer("/system/media/audio/ui/VideoRecord.ogg");
username5755fea2018-12-27 09:48:08 +08003215 }
3216 } else if (SOUND_RECORDING_STOP == kind && mSoundPlayer[SOUND_RECORDING_STOP] == NULL) {
3217 mSoundPlayer[SOUND_RECORDING_STOP] = newMediaPlayer("/product/media/audio/ui/VideoStop.ogg");
3218 if (mSoundPlayer[SOUND_RECORDING_STOP] == nullptr) {
3219 mSoundPlayer[SOUND_RECORDING_STOP] = newMediaPlayer("/system/media/audio/ui/VideoStop.ogg");
3220 }
Jaekyun Seok59a8ef02018-01-15 14:49:05 +09003221 }
Mathias Agopian65ab4712010-07-14 17:59:35 -07003222}
3223
username5755fea2018-12-27 09:48:08 +08003224void CameraService::decreaseSoundRef() {
Mathias Agopian65ab4712010-07-14 17:59:35 -07003225 Mutex::Autolock lock(mSoundLock);
username5755fea2018-12-27 09:48:08 +08003226 LOG1("CameraService::decreaseSoundRef ref=%d", mSoundRef);
Mathias Agopian65ab4712010-07-14 17:59:35 -07003227 if (--mSoundRef) return;
3228
3229 for (int i = 0; i < NUM_SOUNDS; i++) {
3230 if (mSoundPlayer[i] != 0) {
3231 mSoundPlayer[i]->disconnect();
3232 mSoundPlayer[i].clear();
3233 }
3234 }
3235}
3236
3237void CameraService::playSound(sound_kind kind) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07003238 ATRACE_CALL();
3239
Mathias Agopian65ab4712010-07-14 17:59:35 -07003240 LOG1("playSound(%d)", kind);
Eino-Ville Talvala139ca752021-04-23 15:40:34 -07003241 if (kind < 0 || kind >= NUM_SOUNDS) {
3242 ALOGE("%s: Invalid sound id requested: %d", __FUNCTION__, kind);
3243 return;
3244 }
3245
Mathias Agopian65ab4712010-07-14 17:59:35 -07003246 Mutex::Autolock lock(mSoundLock);
username5755fea2018-12-27 09:48:08 +08003247 loadSoundLocked(kind);
Mathias Agopian65ab4712010-07-14 17:59:35 -07003248 sp<MediaPlayer> player = mSoundPlayer[kind];
3249 if (player != 0) {
Chih-Chung Chang8888a752011-10-20 10:47:26 +08003250 player->seekTo(0);
3251 player->start();
Mathias Agopian65ab4712010-07-14 17:59:35 -07003252 }
3253}
3254
3255// ----------------------------------------------------------------------------
3256
3257CameraService::Client::Client(const sp<CameraService>& cameraService,
Wu-cheng Lib7a67942010-08-17 15:45:37 -07003258 const sp<ICameraClient>& cameraClient,
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08003259 const String16& clientPackageName, bool systemNativeClient,
Jooyung Hanb3f7cd22020-01-23 12:27:18 +09003260 const std::optional<String16>& clientFeatureId,
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -08003261 const String8& cameraIdStr,
Emilian Peev8b64f282021-03-25 16:49:57 -07003262 int api1CameraId, int cameraFacing, int sensorOrientation,
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08003263 int clientPid, uid_t clientUid,
3264 int servicePid) :
Eino-Ville Talvalae992e752014-11-07 16:17:48 -08003265 CameraService::BasicClient(cameraService,
Marco Nelissenf8880202014-11-14 07:58:25 -08003266 IInterface::asBinder(cameraClient),
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08003267 clientPackageName, systemNativeClient, clientFeatureId,
Emilian Peev8b64f282021-03-25 16:49:57 -07003268 cameraIdStr, cameraFacing, sensorOrientation,
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08003269 clientPid, clientUid,
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -08003270 servicePid),
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -08003271 mCameraId(api1CameraId)
Igor Murashkin634a5152013-02-20 17:15:11 -08003272{
Jayant Chowdhary12361932018-08-27 14:46:13 -07003273 int callingPid = CameraThreadState::getCallingPid();
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -08003274 LOG1("Client::Client E (pid %d, id %d)", callingPid, mCameraId);
Mathias Agopian65ab4712010-07-14 17:59:35 -07003275
Igor Murashkin44cfcf02013-03-01 16:22:28 -08003276 mRemoteCallback = cameraClient;
Mathias Agopian65ab4712010-07-14 17:59:35 -07003277
username5755fea2018-12-27 09:48:08 +08003278 cameraService->increaseSoundRef();
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08003279
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -08003280 LOG1("Client::Client X (pid %d, id %d)", callingPid, mCameraId);
Mathias Agopian65ab4712010-07-14 17:59:35 -07003281}
3282
Mathias Agopian65ab4712010-07-14 17:59:35 -07003283// tear down the client
3284CameraService::Client::~Client() {
Eino-Ville Talvalad09801b2013-04-23 15:16:57 -07003285 ALOGV("~Client");
Igor Murashkin634a5152013-02-20 17:15:11 -08003286 mDestructionStarted = true;
3287
username5755fea2018-12-27 09:48:08 +08003288 sCameraService->decreaseSoundRef();
Igor Murashkin036bc3e2012-10-08 15:09:46 -07003289 // unconditionally disconnect. function is idempotent
3290 Client::disconnect();
Mathias Agopian65ab4712010-07-14 17:59:35 -07003291}
3292
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -08003293sp<CameraService> CameraService::BasicClient::BasicClient::sCameraService;
3294
Igor Murashkin634a5152013-02-20 17:15:11 -08003295CameraService::BasicClient::BasicClient(const sp<CameraService>& cameraService,
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08003296 const sp<IBinder>& remoteCallback,
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08003297 const String16& clientPackageName, bool nativeClient,
3298 const std::optional<String16>& clientFeatureId, const String8& cameraIdStr,
3299 int cameraFacing, int sensorOrientation, int clientPid, uid_t clientUid,
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08003300 int servicePid):
Eino-Ville Talvala178e8232021-04-16 18:41:39 -07003301 mDestructionStarted(false),
Emilian Peev8b64f282021-03-25 16:49:57 -07003302 mCameraIdStr(cameraIdStr), mCameraFacing(cameraFacing), mOrientation(sensorOrientation),
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08003303 mClientPackageName(clientPackageName), mSystemNativeClient(nativeClient),
3304 mClientFeatureId(clientFeatureId),
Philip P. Moltmann9e648f62019-11-04 12:52:45 -08003305 mClientPid(clientPid), mClientUid(clientUid),
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -08003306 mServicePid(servicePid),
Shuzhen Wang2c656792020-04-13 17:36:49 -07003307 mDisconnected(false), mUidIsTrusted(false),
Yin-Chia Yehdba03232019-08-19 15:54:28 -07003308 mAudioRestriction(hardware::camera2::ICameraDeviceUser::AUDIO_RESTRICTION_NONE),
Eino-Ville Talvala178e8232021-04-16 18:41:39 -07003309 mRemoteBinder(remoteCallback),
3310 mOpsActive(false),
3311 mOpsStreaming(false)
Igor Murashkin634a5152013-02-20 17:15:11 -08003312{
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -08003313 if (sCameraService == nullptr) {
3314 sCameraService = cameraService;
3315 }
Yin-Chia Yeh0dea57f2015-12-09 16:46:07 -08003316
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08003317 // There are 2 scenarios in which a client won't have AppOps operations
3318 // (both scenarios : native clients)
3319 // 1) It's an system native client*, the package name will be empty
3320 // and it will return from this function in the previous if condition
3321 // (This is the same as the previously existing behavior).
3322 // 2) It is a system native client, but its package name has been
3323 // modified for debugging, however it still must not use AppOps since
3324 // the package name is not a real one.
3325 //
3326 // * system native client - native client with UID < AID_APP_START. It
3327 // doesn't exclude clients not on the system partition.
3328 if (!mSystemNativeClient) {
Jayant Chowdharyb61526c2019-05-13 19:37:42 -07003329 mAppOpsManager = std::make_unique<AppOpsManager>();
3330 }
Shuzhen Wang2c656792020-04-13 17:36:49 -07003331
3332 mUidIsTrusted = isTrustedCallingUid(mClientUid);
Igor Murashkin634a5152013-02-20 17:15:11 -08003333}
3334
3335CameraService::BasicClient::~BasicClient() {
Eino-Ville Talvalad09801b2013-04-23 15:16:57 -07003336 ALOGV("~BasicClient");
Igor Murashkin634a5152013-02-20 17:15:11 -08003337 mDestructionStarted = true;
3338}
3339
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08003340binder::Status CameraService::BasicClient::disconnect() {
3341 binder::Status res = Status::ok();
Ruben Brunk36597b22015-03-20 22:15:57 -07003342 if (mDisconnected) {
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08003343 return res;
Ruben Brunk36597b22015-03-20 22:15:57 -07003344 }
Eino-Ville Talvala24901c82015-09-04 14:15:58 -07003345 mDisconnected = true;
Ruben Brunkcc776712015-02-17 20:18:47 -08003346
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -08003347 sCameraService->removeByClient(this);
Jayant Chowdharyb61526c2019-05-13 19:37:42 -07003348 sCameraService->logDisconnected(mCameraIdStr, mClientPid, String8(mClientPackageName));
Peter Kalauskasa29c1352018-10-10 12:05:42 -07003349 sCameraService->mCameraProviderManager->removeRef(CameraProviderManager::DeviceMode::CAMERA,
3350 mCameraIdStr.c_str());
Ruben Brunkcc776712015-02-17 20:18:47 -08003351
3352 sp<IBinder> remote = getRemote();
3353 if (remote != nullptr) {
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -08003354 remote->unlinkToDeath(sCameraService);
Ruben Brunkcc776712015-02-17 20:18:47 -08003355 }
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07003356
3357 finishCameraOps();
Chien-Yu Chene4fe21b2016-08-04 12:42:40 -07003358 // Notify flashlight that a camera device is closed.
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -08003359 sCameraService->mFlashlight->deviceClosed(mCameraIdStr);
3360 ALOGI("%s: Disconnected client for camera %s for PID %d", __FUNCTION__, mCameraIdStr.string(),
3361 mClientPid);
Ruben Brunkcc776712015-02-17 20:18:47 -08003362
Igor Murashkincba2c162013-03-20 15:56:31 -07003363 // client shouldn't be able to call into us anymore
3364 mClientPid = 0;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08003365
3366 return res;
Igor Murashkin634a5152013-02-20 17:15:11 -08003367}
3368
Eino-Ville Talvalac4003962016-01-13 10:07:04 -08003369status_t CameraService::BasicClient::dump(int, const Vector<String16>&) {
3370 // No dumping of clients directly over Binder,
3371 // must go through CameraService::dump
3372 android_errorWriteWithInfoLog(SN_EVENT_LOG_ID, "26265403",
Jayant Chowdhary12361932018-08-27 14:46:13 -07003373 CameraThreadState::getCallingUid(), NULL, 0);
Eino-Ville Talvalac4003962016-01-13 10:07:04 -08003374 return OK;
3375}
3376
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07003377status_t CameraService::BasicClient::startWatchingTags(const String8&, int) {
3378 // Can't watch tags directly, must go through CameraService::startWatchingTags
3379 return OK;
3380}
3381
3382status_t CameraService::BasicClient::stopWatchingTags(int) {
3383 // Can't watch tags directly, must go through CameraService::stopWatchingTags
3384 return OK;
3385}
3386
3387status_t CameraService::BasicClient::dumpWatchedEventsToVector(std::vector<std::string> &) {
3388 // Can't watch tags directly, must go through CameraService::dumpWatchedEventsToVector
3389 return OK;
3390}
3391
Ruben Brunkcc776712015-02-17 20:18:47 -08003392String16 CameraService::BasicClient::getPackageName() const {
Svetoslav Ganov280405a2015-05-12 02:19:27 +00003393 return mClientPackageName;
Ruben Brunkcc776712015-02-17 20:18:47 -08003394}
3395
Emilian Peev8b64f282021-03-25 16:49:57 -07003396int CameraService::BasicClient::getCameraFacing() const {
3397 return mCameraFacing;
3398}
3399
3400int CameraService::BasicClient::getCameraOrientation() const {
3401 return mOrientation;
3402}
Ruben Brunkcc776712015-02-17 20:18:47 -08003403
3404int CameraService::BasicClient::getClientPid() const {
3405 return mClientPid;
3406}
3407
Ruben Brunk6267b532015-04-30 17:44:07 -07003408uid_t CameraService::BasicClient::getClientUid() const {
3409 return mClientUid;
3410}
3411
Ruben Brunk0bbf8b22015-04-30 14:35:42 -07003412bool CameraService::BasicClient::canCastToApiClient(apiLevel level) const {
3413 // Defaults to API2.
3414 return level == API_2;
3415}
3416
Yin-Chia Yehcfab4e12019-09-09 13:08:28 -07003417status_t CameraService::BasicClient::setAudioRestriction(int32_t mode) {
Yin-Chia Yehdba03232019-08-19 15:54:28 -07003418 {
3419 Mutex::Autolock l(mAudioRestrictionLock);
3420 mAudioRestriction = mode;
3421 }
Yin-Chia Yehcfab4e12019-09-09 13:08:28 -07003422 sCameraService->updateAudioRestriction();
3423 return OK;
3424}
3425
3426int32_t CameraService::BasicClient::getServiceAudioRestriction() const {
Yin-Chia Yehdba03232019-08-19 15:54:28 -07003427 return sCameraService->updateAudioRestriction();
3428}
3429
3430int32_t CameraService::BasicClient::getAudioRestriction() const {
3431 Mutex::Autolock l(mAudioRestrictionLock);
3432 return mAudioRestriction;
3433}
3434
3435bool CameraService::BasicClient::isValidAudioRestriction(int32_t mode) {
3436 switch (mode) {
3437 case hardware::camera2::ICameraDeviceUser::AUDIO_RESTRICTION_NONE:
3438 case hardware::camera2::ICameraDeviceUser::AUDIO_RESTRICTION_VIBRATION:
3439 case hardware::camera2::ICameraDeviceUser::AUDIO_RESTRICTION_VIBRATION_SOUND:
3440 return true;
3441 default:
3442 return false;
3443 }
3444}
3445
Eino-Ville Talvala178e8232021-04-16 18:41:39 -07003446status_t CameraService::BasicClient::handleAppOpMode(int32_t mode) {
3447 if (mode == AppOpsManager::MODE_ERRORED) {
3448 ALOGI("Camera %s: Access for \"%s\" has been revoked",
3449 mCameraIdStr.string(), String8(mClientPackageName).string());
3450 return PERMISSION_DENIED;
3451 } else if (!mUidIsTrusted && mode == AppOpsManager::MODE_IGNORED) {
3452 // If the calling Uid is trusted (a native service), the AppOpsManager could
3453 // return MODE_IGNORED. Do not treat such case as error.
3454 bool isUidActive = sCameraService->mUidPolicy->isUidActive(mClientUid,
3455 mClientPackageName);
3456 bool isCameraPrivacyEnabled =
Evan Seversond0b69922022-01-27 10:47:34 -08003457 sCameraService->mSensorPrivacyPolicy->isCameraPrivacyEnabled();
Eino-Ville Talvala178e8232021-04-16 18:41:39 -07003458 if (!isUidActive || !isCameraPrivacyEnabled) {
3459 ALOGI("Camera %s: Access for \"%s\" has been restricted",
3460 mCameraIdStr.string(), String8(mClientPackageName).string());
3461 // Return the same error as for device policy manager rejection
3462 return -EACCES;
3463 }
3464 }
3465 return OK;
3466}
3467
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08003468status_t CameraService::BasicClient::startCameraOps() {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07003469 ATRACE_CALL();
3470
Igor Murashkine6800ce2013-03-04 17:25:57 -08003471 {
3472 ALOGV("%s: Start camera ops, package name = %s, client UID = %d",
Svetoslav Ganov280405a2015-05-12 02:19:27 +00003473 __FUNCTION__, String8(mClientPackageName).string(), mClientUid);
Igor Murashkine6800ce2013-03-04 17:25:57 -08003474 }
Jayant Chowdharyb61526c2019-05-13 19:37:42 -07003475 if (mAppOpsManager != nullptr) {
3476 // Notify app ops that the camera is not available
3477 mOpsCallback = new OpsCallback(this);
Jayant Chowdharyb61526c2019-05-13 19:37:42 -07003478 mAppOpsManager->startWatchingMode(AppOpsManager::OP_CAMERA,
3479 mClientPackageName, mOpsCallback);
Igor Murashkine6800ce2013-03-04 17:25:57 -08003480
Eino-Ville Talvala178e8232021-04-16 18:41:39 -07003481 // Just check for camera acccess here on open - delay startOp until
3482 // camera frames start streaming in startCameraStreamingOps
3483 int32_t mode = mAppOpsManager->checkOp(AppOpsManager::OP_CAMERA, mClientUid,
3484 mClientPackageName);
3485 status_t res = handleAppOpMode(mode);
3486 if (res != OK) {
3487 return res;
Jayant Chowdharyb61526c2019-05-13 19:37:42 -07003488 }
Svetoslav28e8ef72015-05-11 19:21:31 -07003489 }
3490
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08003491 mOpsActive = true;
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07003492
3493 // Transition device availability listeners from PRESENT -> NOT_AVAILABLE
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -08003494 sCameraService->updateStatus(StatusInternal::NOT_AVAILABLE, mCameraIdStr);
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07003495
Emilian Peev53722fa2019-02-22 17:47:20 -08003496 sCameraService->mUidPolicy->registerMonitorUid(mClientUid);
3497
Shuzhen Wang695044d2020-03-06 09:02:23 -08003498 // Notify listeners of camera open/close status
3499 sCameraService->updateOpenCloseStatus(mCameraIdStr, true/*open*/, mClientPackageName);
3500
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08003501 return OK;
3502}
3503
Eino-Ville Talvala178e8232021-04-16 18:41:39 -07003504status_t CameraService::BasicClient::startCameraStreamingOps() {
3505 ATRACE_CALL();
3506
3507 if (!mOpsActive) {
3508 ALOGE("%s: Calling streaming start when not yet active", __FUNCTION__);
3509 return INVALID_OPERATION;
3510 }
3511 if (mOpsStreaming) {
3512 ALOGV("%s: Streaming already active!", __FUNCTION__);
3513 return OK;
3514 }
3515
3516 ALOGV("%s: Start camera streaming ops, package name = %s, client UID = %d",
3517 __FUNCTION__, String8(mClientPackageName).string(), mClientUid);
3518
3519 if (mAppOpsManager != nullptr) {
3520 int32_t mode = mAppOpsManager->startOpNoThrow(AppOpsManager::OP_CAMERA, mClientUid,
3521 mClientPackageName, /*startIfModeDefault*/ false, mClientFeatureId,
3522 String16("start camera ") + String16(mCameraIdStr));
3523 status_t res = handleAppOpMode(mode);
3524 if (res != OK) {
3525 return res;
3526 }
3527 }
3528
3529 mOpsStreaming = true;
3530
3531 return OK;
3532}
3533
Valentin Iftimec0b8d472021-07-23 20:21:06 +02003534status_t CameraService::BasicClient::noteAppOp() {
3535 ATRACE_CALL();
3536
3537 ALOGV("%s: Start camera noteAppOp, package name = %s, client UID = %d",
3538 __FUNCTION__, String8(mClientPackageName).string(), mClientUid);
3539
3540 // noteAppOp is only used for when camera mute is not supported, in order
3541 // to trigger the sensor privacy "Unblock" dialog
3542 if (mAppOpsManager != nullptr) {
3543 int32_t mode = mAppOpsManager->noteOp(AppOpsManager::OP_CAMERA, mClientUid,
3544 mClientPackageName, mClientFeatureId,
3545 String16("start camera ") + String16(mCameraIdStr));
3546 status_t res = handleAppOpMode(mode);
3547 if (res != OK) {
3548 return res;
3549 }
3550 }
3551
3552 return OK;
3553}
3554
Eino-Ville Talvala178e8232021-04-16 18:41:39 -07003555status_t CameraService::BasicClient::finishCameraStreamingOps() {
3556 ATRACE_CALL();
3557
3558 if (!mOpsActive) {
3559 ALOGE("%s: Calling streaming start when not yet active", __FUNCTION__);
3560 return INVALID_OPERATION;
3561 }
3562 if (!mOpsStreaming) {
3563 ALOGV("%s: Streaming not active!", __FUNCTION__);
3564 return OK;
3565 }
3566
3567 if (mAppOpsManager != nullptr) {
3568 mAppOpsManager->finishOp(AppOpsManager::OP_CAMERA, mClientUid,
3569 mClientPackageName, mClientFeatureId);
3570 mOpsStreaming = false;
3571 }
3572
3573 return OK;
3574}
3575
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08003576status_t CameraService::BasicClient::finishCameraOps() {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07003577 ATRACE_CALL();
3578
Eino-Ville Talvala178e8232021-04-16 18:41:39 -07003579 if (mOpsStreaming) {
3580 // Make sure we've notified everyone about camera stopping
3581 finishCameraStreamingOps();
3582 }
3583
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07003584 // Check if startCameraOps succeeded, and if so, finish the camera op
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08003585 if (mOpsActive) {
Eino-Ville Talvala178e8232021-04-16 18:41:39 -07003586 mOpsActive = false;
3587
Guennadi Liakhovetski151e3be2017-11-28 16:34:18 +01003588 // This function is called when a client disconnects. This should
3589 // release the camera, but actually only if it was in a proper
3590 // functional state, i.e. with status NOT_AVAILABLE
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08003591 std::initializer_list<StatusInternal> rejected = {StatusInternal::PRESENT,
Guennadi Liakhovetski151e3be2017-11-28 16:34:18 +01003592 StatusInternal::ENUMERATING, StatusInternal::NOT_PRESENT};
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07003593
Ruben Brunkcc776712015-02-17 20:18:47 -08003594 // Transition to PRESENT if the camera is not in either of the rejected states
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -08003595 sCameraService->updateStatus(StatusInternal::PRESENT,
3596 mCameraIdStr, rejected);
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08003597 }
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07003598 // Always stop watching, even if no camera op is active
Jayant Chowdharyb61526c2019-05-13 19:37:42 -07003599 if (mOpsCallback != nullptr && mAppOpsManager != nullptr) {
3600 mAppOpsManager->stopWatchingMode(mOpsCallback);
Eino-Ville Talvalae992e752014-11-07 16:17:48 -08003601 }
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08003602 mOpsCallback.clear();
3603
Emilian Peev53722fa2019-02-22 17:47:20 -08003604 sCameraService->mUidPolicy->unregisterMonitorUid(mClientUid);
3605
Shuzhen Wang695044d2020-03-06 09:02:23 -08003606 // Notify listeners of camera open/close status
3607 sCameraService->updateOpenCloseStatus(mCameraIdStr, false/*open*/, mClientPackageName);
3608
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08003609 return OK;
3610}
3611
Jayant Chowdharyb61526c2019-05-13 19:37:42 -07003612void CameraService::BasicClient::opChanged(int32_t op, const String16&) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07003613 ATRACE_CALL();
Jayant Chowdharyb61526c2019-05-13 19:37:42 -07003614 if (mAppOpsManager == nullptr) {
3615 return;
3616 }
Emilian Peevb2bc5a42019-11-20 16:02:14 -08003617 // TODO : add offline camera session case
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08003618 if (op != AppOpsManager::OP_CAMERA) {
3619 ALOGW("Unexpected app ops notification received: %d", op);
3620 return;
3621 }
3622
3623 int32_t res;
Jayant Chowdharyb61526c2019-05-13 19:37:42 -07003624 res = mAppOpsManager->checkOp(AppOpsManager::OP_CAMERA,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00003625 mClientUid, mClientPackageName);
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08003626 ALOGV("checkOp returns: %d, %s ", res,
3627 res == AppOpsManager::MODE_ALLOWED ? "ALLOWED" :
3628 res == AppOpsManager::MODE_IGNORED ? "IGNORED" :
3629 res == AppOpsManager::MODE_ERRORED ? "ERRORED" :
3630 "UNKNOWN");
3631
Shuzhen Wang64900852021-02-05 09:03:29 -08003632 if (res == AppOpsManager::MODE_ERRORED) {
Eino-Ville Talvala2f09bac2016-12-13 11:29:54 -08003633 ALOGI("Camera %s: Access for \"%s\" revoked", mCameraIdStr.string(),
Jayant Chowdharyb61526c2019-05-13 19:37:42 -07003634 String8(mClientPackageName).string());
Svet Ganova453d0d2018-01-11 15:37:58 -08003635 block();
Shuzhen Wang64900852021-02-05 09:03:29 -08003636 } else if (res == AppOpsManager::MODE_IGNORED) {
3637 bool isUidActive = sCameraService->mUidPolicy->isUidActive(mClientUid, mClientPackageName);
Evan Severson09ab4002021-02-10 14:15:19 -08003638 bool isCameraPrivacyEnabled =
Evan Seversond0b69922022-01-27 10:47:34 -08003639 sCameraService->mSensorPrivacyPolicy->isCameraPrivacyEnabled();
Shuzhen Wang64900852021-02-05 09:03:29 -08003640 ALOGI("Camera %s: Access for \"%s\" has been restricted, isUidTrusted %d, isUidActive %d",
3641 mCameraIdStr.string(), String8(mClientPackageName).string(),
3642 mUidIsTrusted, isUidActive);
3643 // If the calling Uid is trusted (a native service), or the client Uid is active (WAR for
3644 // b/175320666), the AppOpsManager could return MODE_IGNORED. Do not treat such cases as
3645 // error.
Valentin Iftimec0b8d472021-07-23 20:21:06 +02003646 if (!mUidIsTrusted) {
3647 if (isUidActive && isCameraPrivacyEnabled && supportsCameraMute()) {
3648 setCameraMute(true);
3649 } else if (!isUidActive
3650 || (isCameraPrivacyEnabled && !supportsCameraMute())) {
3651 block();
3652 }
Shuzhen Wang64900852021-02-05 09:03:29 -08003653 }
Evan Severson09ab4002021-02-10 14:15:19 -08003654 } else if (res == AppOpsManager::MODE_ALLOWED) {
3655 setCameraMute(sCameraService->mOverrideCameraMuteMode);
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08003656 }
3657}
3658
Svet Ganova453d0d2018-01-11 15:37:58 -08003659void CameraService::BasicClient::block() {
3660 ATRACE_CALL();
3661
3662 // Reset the client PID to allow server-initiated disconnect,
3663 // and to prevent further calls by client.
Jayant Chowdhary12361932018-08-27 14:46:13 -07003664 mClientPid = CameraThreadState::getCallingPid();
Svet Ganova453d0d2018-01-11 15:37:58 -08003665 CaptureResultExtras resultExtras; // a dummy result (invalid)
3666 notifyError(hardware::camera2::ICameraDeviceCallbacks::ERROR_CAMERA_DISABLED, resultExtras);
3667 disconnect();
3668}
3669
Mathias Agopian65ab4712010-07-14 17:59:35 -07003670// ----------------------------------------------------------------------------
3671
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08003672void CameraService::Client::notifyError(int32_t errorCode,
Jianing Weicb0652e2014-03-12 18:29:36 -07003673 const CaptureResultExtras& resultExtras) {
Eino-Ville Talvalad309fb92015-11-25 12:12:45 -08003674 (void) resultExtras;
Ranjith Kagathi Ananda3e600892015-10-08 16:00:33 -07003675 if (mRemoteCallback != NULL) {
Yin-Chia Yehf13bda52018-05-31 12:12:59 -07003676 int32_t api1ErrorCode = CAMERA_ERROR_RELEASED;
3677 if (errorCode == hardware::camera2::ICameraDeviceCallbacks::ERROR_CAMERA_DISABLED) {
3678 api1ErrorCode = CAMERA_ERROR_DISABLED;
3679 }
3680 mRemoteCallback->notifyCallback(CAMERA_MSG_ERROR, api1ErrorCode, 0);
Ranjith Kagathi Ananda3e600892015-10-08 16:00:33 -07003681 } else {
3682 ALOGE("mRemoteCallback is NULL!!");
3683 }
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08003684}
3685
Igor Murashkin036bc3e2012-10-08 15:09:46 -07003686// NOTE: function is idempotent
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08003687binder::Status CameraService::Client::disconnect() {
Eino-Ville Talvalad09801b2013-04-23 15:16:57 -07003688 ALOGV("Client::disconnect");
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08003689 return BasicClient::disconnect();
Wu-cheng Lie09591e2010-10-14 20:17:44 +08003690}
3691
Ruben Brunk0bbf8b22015-04-30 14:35:42 -07003692bool CameraService::Client::canCastToApiClient(apiLevel level) const {
3693 return level == API_1;
3694}
3695
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08003696CameraService::Client::OpsCallback::OpsCallback(wp<BasicClient> client):
3697 mClient(client) {
3698}
3699
3700void CameraService::Client::OpsCallback::opChanged(int32_t op,
3701 const String16& packageName) {
3702 sp<BasicClient> client = mClient.promote();
3703 if (client != NULL) {
3704 client->opChanged(op, packageName);
3705 }
3706}
3707
Mathias Agopian65ab4712010-07-14 17:59:35 -07003708// ----------------------------------------------------------------------------
Svet Ganova453d0d2018-01-11 15:37:58 -08003709// UidPolicy
3710// ----------------------------------------------------------------------------
3711
3712void CameraService::UidPolicy::registerSelf() {
Eino-Ville Talvala8abec3f2018-03-20 11:07:00 -07003713 Mutex::Autolock _l(mUidLock);
3714
Eino-Ville Talvala8abec3f2018-03-20 11:07:00 -07003715 if (mRegistered) return;
Steven Moreland2f348142019-07-02 15:59:07 -07003716 status_t res = mAm.linkToDeath(this);
3717 mAm.registerUidObserver(this, ActivityManager::UID_OBSERVER_GONE
Svet Ganova453d0d2018-01-11 15:37:58 -08003718 | ActivityManager::UID_OBSERVER_IDLE
Austin Borger65577682022-02-17 00:25:43 +00003719 | ActivityManager::UID_OBSERVER_ACTIVE | ActivityManager::UID_OBSERVER_PROCSTATE
3720 | ActivityManager::UID_OBSERVER_PROC_OOM_ADJ,
Svet Ganova453d0d2018-01-11 15:37:58 -08003721 ActivityManager::PROCESS_STATE_UNKNOWN,
3722 String16("cameraserver"));
Eino-Ville Talvala8abec3f2018-03-20 11:07:00 -07003723 if (res == OK) {
3724 mRegistered = true;
3725 ALOGV("UidPolicy: Registered with ActivityManager");
3726 }
Svet Ganova453d0d2018-01-11 15:37:58 -08003727}
3728
3729void CameraService::UidPolicy::unregisterSelf() {
Eino-Ville Talvala8abec3f2018-03-20 11:07:00 -07003730 Mutex::Autolock _l(mUidLock);
3731
Steven Moreland2f348142019-07-02 15:59:07 -07003732 mAm.unregisterUidObserver(this);
3733 mAm.unlinkToDeath(this);
Eino-Ville Talvala8abec3f2018-03-20 11:07:00 -07003734 mRegistered = false;
3735 mActiveUids.clear();
3736 ALOGV("UidPolicy: Unregistered with ActivityManager");
Svet Ganova453d0d2018-01-11 15:37:58 -08003737}
3738
3739void CameraService::UidPolicy::onUidGone(uid_t uid, bool disabled) {
3740 onUidIdle(uid, disabled);
3741}
3742
3743void CameraService::UidPolicy::onUidActive(uid_t uid) {
3744 Mutex::Autolock _l(mUidLock);
3745 mActiveUids.insert(uid);
3746}
3747
3748void CameraService::UidPolicy::onUidIdle(uid_t uid, bool /* disabled */) {
3749 bool deleted = false;
3750 {
3751 Mutex::Autolock _l(mUidLock);
3752 if (mActiveUids.erase(uid) > 0) {
3753 deleted = true;
3754 }
3755 }
3756 if (deleted) {
3757 sp<CameraService> service = mService.promote();
3758 if (service != nullptr) {
3759 service->blockClientsForUid(uid);
3760 }
3761 }
3762}
3763
Emilian Peev53722fa2019-02-22 17:47:20 -08003764void CameraService::UidPolicy::onUidStateChanged(uid_t uid, int32_t procState,
Hui Yu13ad0eb2019-09-09 10:27:07 -07003765 int64_t procStateSeq __unused, int32_t capability __unused) {
Austin Borgerc5585dc2022-05-12 00:48:17 +00003766 bool procStateChange = false;
3767 {
3768 Mutex::Autolock _l(mUidLock);
3769 if (mMonitoredUids.find(uid) != mMonitoredUids.end() &&
3770 mMonitoredUids[uid].procState != procState) {
3771 mMonitoredUids[uid].procState = procState;
3772 procStateChange = true;
3773 }
3774 }
3775
3776 if (procStateChange) {
3777 sp<CameraService> service = mService.promote();
3778 if (service != nullptr) {
3779 service->notifyMonitoredUids();
3780 }
Emilian Peev53722fa2019-02-22 17:47:20 -08003781 }
3782}
3783
Austin Borger65577682022-02-17 00:25:43 +00003784void CameraService::UidPolicy::onUidProcAdjChanged(uid_t uid) {
3785 bool procAdjChange = false;
3786 {
3787 Mutex::Autolock _l(mUidLock);
3788 if (mMonitoredUids.find(uid) != mMonitoredUids.end()) {
3789 procAdjChange = true;
3790 }
3791 }
3792
3793 if (procAdjChange) {
3794 sp<CameraService> service = mService.promote();
3795 if (service != nullptr) {
3796 service->notifyMonitoredUids();
3797 }
3798 }
3799}
3800
Emilian Peev53722fa2019-02-22 17:47:20 -08003801void CameraService::UidPolicy::registerMonitorUid(uid_t uid) {
3802 Mutex::Autolock _l(mUidLock);
3803 auto it = mMonitoredUids.find(uid);
3804 if (it != mMonitoredUids.end()) {
Austin Borger65577682022-02-17 00:25:43 +00003805 it->second.refCount++;
Emilian Peev53722fa2019-02-22 17:47:20 -08003806 } else {
Austin Borger65577682022-02-17 00:25:43 +00003807 MonitoredUid monitoredUid;
3808 monitoredUid.procState = ActivityManager::PROCESS_STATE_NONEXISTENT;
3809 monitoredUid.refCount = 1;
3810 mMonitoredUids.emplace(std::pair<uid_t, MonitoredUid>(uid, monitoredUid));
Emilian Peev53722fa2019-02-22 17:47:20 -08003811 }
3812}
3813
3814void CameraService::UidPolicy::unregisterMonitorUid(uid_t uid) {
3815 Mutex::Autolock _l(mUidLock);
3816 auto it = mMonitoredUids.find(uid);
3817 if (it != mMonitoredUids.end()) {
Austin Borger65577682022-02-17 00:25:43 +00003818 it->second.refCount--;
3819 if (it->second.refCount == 0) {
Emilian Peev53722fa2019-02-22 17:47:20 -08003820 mMonitoredUids.erase(it);
3821 }
3822 } else {
3823 ALOGE("%s: Trying to unregister uid: %d which is not monitored!", __FUNCTION__, uid);
3824 }
3825}
3826
Svet Ganov7b4ab782018-03-25 12:48:10 -07003827bool CameraService::UidPolicy::isUidActive(uid_t uid, String16 callingPackage) {
Svet Ganova453d0d2018-01-11 15:37:58 -08003828 Mutex::Autolock _l(mUidLock);
Svet Ganov7b4ab782018-03-25 12:48:10 -07003829 return isUidActiveLocked(uid, callingPackage);
Svet Ganova453d0d2018-01-11 15:37:58 -08003830}
3831
Eino-Ville Talvala32b8c202018-08-20 10:27:58 -07003832static const int64_t kPollUidActiveTimeoutTotalMillis = 300;
3833static const int64_t kPollUidActiveTimeoutMillis = 50;
Svet Ganov94ec46f2018-06-08 15:03:46 -07003834
Svet Ganov7b4ab782018-03-25 12:48:10 -07003835bool CameraService::UidPolicy::isUidActiveLocked(uid_t uid, String16 callingPackage) {
Svet Ganova453d0d2018-01-11 15:37:58 -08003836 // Non-app UIDs are considered always active
Eino-Ville Talvala8abec3f2018-03-20 11:07:00 -07003837 // If activity manager is unreachable, assume everything is active
3838 if (uid < FIRST_APPLICATION_UID || !mRegistered) {
Svet Ganova453d0d2018-01-11 15:37:58 -08003839 return true;
3840 }
3841 auto it = mOverrideUids.find(uid);
3842 if (it != mOverrideUids.end()) {
3843 return it->second;
3844 }
Svet Ganov7b4ab782018-03-25 12:48:10 -07003845 bool active = mActiveUids.find(uid) != mActiveUids.end();
3846 if (!active) {
3847 // We want active UIDs to always access camera with their first attempt since
3848 // there is no guarantee the app is robustly written and would retry getting
3849 // the camera on failure. The inverse case is not a problem as we would take
3850 // camera away soon once we get the callback that the uid is no longer active.
3851 ActivityManager am;
3852 // Okay to access with a lock held as UID changes are dispatched without
3853 // a lock and we are a higher level component.
Svet Ganov94ec46f2018-06-08 15:03:46 -07003854 int64_t startTimeMillis = 0;
3855 do {
3856 // TODO: Fix this b/109950150!
3857 // Okay this is a hack. There is a race between the UID turning active and
3858 // activity being resumed. The proper fix is very risky, so we temporary add
3859 // some polling which should happen pretty rarely anyway as the race is hard
3860 // to hit.
Eino-Ville Talvala32b8c202018-08-20 10:27:58 -07003861 active = mActiveUids.find(uid) != mActiveUids.end();
Hui Yu12c7ec72020-05-04 17:40:52 +00003862 if (!active) active = am.isUidActive(uid, callingPackage);
Svet Ganov94ec46f2018-06-08 15:03:46 -07003863 if (active) {
3864 break;
3865 }
3866 if (startTimeMillis <= 0) {
3867 startTimeMillis = uptimeMillis();
3868 }
3869 int64_t ellapsedTimeMillis = uptimeMillis() - startTimeMillis;
Eino-Ville Talvala32b8c202018-08-20 10:27:58 -07003870 int64_t remainingTimeMillis = kPollUidActiveTimeoutTotalMillis - ellapsedTimeMillis;
Svet Ganov94ec46f2018-06-08 15:03:46 -07003871 if (remainingTimeMillis <= 0) {
3872 break;
3873 }
Eino-Ville Talvala32b8c202018-08-20 10:27:58 -07003874 remainingTimeMillis = std::min(kPollUidActiveTimeoutMillis, remainingTimeMillis);
3875
3876 mUidLock.unlock();
Svet Ganov94ec46f2018-06-08 15:03:46 -07003877 usleep(remainingTimeMillis * 1000);
Eino-Ville Talvala32b8c202018-08-20 10:27:58 -07003878 mUidLock.lock();
Svet Ganov94ec46f2018-06-08 15:03:46 -07003879 } while (true);
3880
Svet Ganov7b4ab782018-03-25 12:48:10 -07003881 if (active) {
3882 // Now that we found out the UID is actually active, cache that
3883 mActiveUids.insert(uid);
3884 }
3885 }
3886 return active;
Svet Ganova453d0d2018-01-11 15:37:58 -08003887}
3888
Varun Shahb42f1eb2019-04-16 14:45:13 -07003889int32_t CameraService::UidPolicy::getProcState(uid_t uid) {
3890 Mutex::Autolock _l(mUidLock);
3891 return getProcStateLocked(uid);
3892}
3893
3894int32_t CameraService::UidPolicy::getProcStateLocked(uid_t uid) {
3895 int32_t procState = ActivityManager::PROCESS_STATE_UNKNOWN;
3896 if (mMonitoredUids.find(uid) != mMonitoredUids.end()) {
Austin Borger65577682022-02-17 00:25:43 +00003897 procState = mMonitoredUids[uid].procState;
Varun Shahb42f1eb2019-04-16 14:45:13 -07003898 }
3899 return procState;
3900}
3901
Svet Ganov7b4ab782018-03-25 12:48:10 -07003902void CameraService::UidPolicy::UidPolicy::addOverrideUid(uid_t uid,
3903 String16 callingPackage, bool active) {
3904 updateOverrideUid(uid, callingPackage, active, true);
Svet Ganova453d0d2018-01-11 15:37:58 -08003905}
3906
Svet Ganov7b4ab782018-03-25 12:48:10 -07003907void CameraService::UidPolicy::removeOverrideUid(uid_t uid, String16 callingPackage) {
3908 updateOverrideUid(uid, callingPackage, false, false);
Svet Ganova453d0d2018-01-11 15:37:58 -08003909}
3910
Eino-Ville Talvala8abec3f2018-03-20 11:07:00 -07003911void CameraService::UidPolicy::binderDied(const wp<IBinder>& /*who*/) {
3912 Mutex::Autolock _l(mUidLock);
3913 ALOGV("UidPolicy: ActivityManager has died");
3914 mRegistered = false;
3915 mActiveUids.clear();
3916}
3917
Svet Ganov7b4ab782018-03-25 12:48:10 -07003918void CameraService::UidPolicy::updateOverrideUid(uid_t uid, String16 callingPackage,
3919 bool active, bool insert) {
Svet Ganova453d0d2018-01-11 15:37:58 -08003920 bool wasActive = false;
3921 bool isActive = false;
3922 {
3923 Mutex::Autolock _l(mUidLock);
Svet Ganov7b4ab782018-03-25 12:48:10 -07003924 wasActive = isUidActiveLocked(uid, callingPackage);
Svet Ganova453d0d2018-01-11 15:37:58 -08003925 mOverrideUids.erase(uid);
3926 if (insert) {
3927 mOverrideUids.insert(std::pair<uid_t, bool>(uid, active));
3928 }
Svet Ganov7b4ab782018-03-25 12:48:10 -07003929 isActive = isUidActiveLocked(uid, callingPackage);
Svet Ganova453d0d2018-01-11 15:37:58 -08003930 }
3931 if (wasActive != isActive && !isActive) {
3932 sp<CameraService> service = mService.promote();
3933 if (service != nullptr) {
3934 service->blockClientsForUid(uid);
3935 }
3936 }
3937}
3938
3939// ----------------------------------------------------------------------------
Michael Grooverd1d435a2018-12-18 17:39:42 -08003940// SensorPrivacyPolicy
3941// ----------------------------------------------------------------------------
3942void CameraService::SensorPrivacyPolicy::registerSelf() {
3943 Mutex::Autolock _l(mSensorPrivacyLock);
3944 if (mRegistered) {
3945 return;
3946 }
Evan Severson09ab4002021-02-10 14:15:19 -08003947 hasCameraPrivacyFeature(); // Called so the result is cached
Steven Moreland3cf67172020-01-29 11:44:22 -08003948 mSpm.addSensorPrivacyListener(this);
3949 mSensorPrivacyEnabled = mSpm.isSensorPrivacyEnabled();
3950 status_t res = mSpm.linkToDeath(this);
Michael Grooverd1d435a2018-12-18 17:39:42 -08003951 if (res == OK) {
3952 mRegistered = true;
3953 ALOGV("SensorPrivacyPolicy: Registered with SensorPrivacyManager");
3954 }
3955}
3956
3957void CameraService::SensorPrivacyPolicy::unregisterSelf() {
3958 Mutex::Autolock _l(mSensorPrivacyLock);
Steven Moreland3cf67172020-01-29 11:44:22 -08003959 mSpm.removeSensorPrivacyListener(this);
3960 mSpm.unlinkToDeath(this);
Michael Grooverd1d435a2018-12-18 17:39:42 -08003961 mRegistered = false;
3962 ALOGV("SensorPrivacyPolicy: Unregistered with SensorPrivacyManager");
3963}
3964
3965bool CameraService::SensorPrivacyPolicy::isSensorPrivacyEnabled() {
3966 Mutex::Autolock _l(mSensorPrivacyLock);
3967 return mSensorPrivacyEnabled;
3968}
3969
Evan Seversond0b69922022-01-27 10:47:34 -08003970bool CameraService::SensorPrivacyPolicy::isCameraPrivacyEnabled() {
Evan Severson09ab4002021-02-10 14:15:19 -08003971 if (!hasCameraPrivacyFeature()) {
3972 return false;
3973 }
Evan Seversond0b69922022-01-27 10:47:34 -08003974 return mSpm.isToggleSensorPrivacyEnabled(SensorPrivacyManager::TOGGLE_SENSOR_CAMERA);
Evan Severson09ab4002021-02-10 14:15:19 -08003975}
3976
Evan Seversond0b69922022-01-27 10:47:34 -08003977binder::Status CameraService::SensorPrivacyPolicy::onSensorPrivacyChanged(
3978 int toggleType __unused, int sensor __unused, bool enabled) {
Michael Grooverd1d435a2018-12-18 17:39:42 -08003979 {
3980 Mutex::Autolock _l(mSensorPrivacyLock);
Evan Seversond0b69922022-01-27 10:47:34 -08003981 mSensorPrivacyEnabled = mSpm.isToggleSensorPrivacyEnabled(SensorPrivacyManager::TOGGLE_SENSOR_CAMERA);
Michael Grooverd1d435a2018-12-18 17:39:42 -08003982 }
3983 // if sensor privacy is enabled then block all clients from accessing the camera
Evan Severson09ab4002021-02-10 14:15:19 -08003984 if (enabled) {
3985 sp<CameraService> service = mService.promote();
3986 if (service != nullptr) {
3987 service->blockAllClients();
Michael Grooverd1d435a2018-12-18 17:39:42 -08003988 }
3989 }
3990 return binder::Status::ok();
3991}
3992
3993void CameraService::SensorPrivacyPolicy::binderDied(const wp<IBinder>& /*who*/) {
3994 Mutex::Autolock _l(mSensorPrivacyLock);
3995 ALOGV("SensorPrivacyPolicy: SensorPrivacyManager has died");
3996 mRegistered = false;
3997}
3998
Evan Severson09ab4002021-02-10 14:15:19 -08003999bool CameraService::SensorPrivacyPolicy::hasCameraPrivacyFeature() {
Evan Seversond0b69922022-01-27 10:47:34 -08004000 bool supportsSoftwareToggle = mSpm.supportsSensorToggle(
4001 SensorPrivacyManager::TOGGLE_TYPE_SOFTWARE, SensorPrivacyManager::TOGGLE_SENSOR_CAMERA);
4002 bool supportsHardwareToggle = mSpm.supportsSensorToggle(
4003 SensorPrivacyManager::TOGGLE_TYPE_HARDWARE, SensorPrivacyManager::TOGGLE_SENSOR_CAMERA);
4004 return supportsSoftwareToggle || supportsHardwareToggle;
Evan Severson09ab4002021-02-10 14:15:19 -08004005}
4006
Michael Grooverd1d435a2018-12-18 17:39:42 -08004007// ----------------------------------------------------------------------------
Ruben Brunkcc776712015-02-17 20:18:47 -08004008// CameraState
4009// ----------------------------------------------------------------------------
4010
4011CameraService::CameraState::CameraState(const String8& id, int cost,
Shuzhen Wang403af6d2021-12-21 00:08:43 +00004012 const std::set<String8>& conflicting, SystemCameraKind systemCameraKind,
4013 const std::vector<std::string>& physicalCameras) : mId(id),
Jayant Chowdhary33e8ef82019-09-27 09:20:42 -07004014 mStatus(StatusInternal::NOT_PRESENT), mCost(cost), mConflicting(conflicting),
Shuzhen Wang403af6d2021-12-21 00:08:43 +00004015 mSystemCameraKind(systemCameraKind), mPhysicalCameras(physicalCameras) {}
Ruben Brunkcc776712015-02-17 20:18:47 -08004016
4017CameraService::CameraState::~CameraState() {}
4018
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08004019CameraService::StatusInternal CameraService::CameraState::getStatus() const {
Ruben Brunkcc776712015-02-17 20:18:47 -08004020 Mutex::Autolock lock(mStatusLock);
4021 return mStatus;
4022}
4023
Shuzhen Wang43858162020-01-10 13:42:15 -08004024std::vector<String8> CameraService::CameraState::getUnavailablePhysicalIds() const {
4025 Mutex::Autolock lock(mStatusLock);
4026 std::vector<String8> res(mUnavailablePhysicalIds.begin(), mUnavailablePhysicalIds.end());
4027 return res;
4028}
4029
Ruben Brunkcc776712015-02-17 20:18:47 -08004030CameraParameters CameraService::CameraState::getShimParams() const {
4031 return mShimParams;
4032}
4033
4034void CameraService::CameraState::setShimParams(const CameraParameters& params) {
4035 mShimParams = params;
4036}
4037
4038int CameraService::CameraState::getCost() const {
4039 return mCost;
4040}
4041
4042std::set<String8> CameraService::CameraState::getConflicting() const {
4043 return mConflicting;
4044}
4045
4046String8 CameraService::CameraState::getId() const {
4047 return mId;
4048}
4049
Jayant Chowdhary33e8ef82019-09-27 09:20:42 -07004050SystemCameraKind CameraService::CameraState::getSystemCameraKind() const {
4051 return mSystemCameraKind;
4052}
4053
Shuzhen Wang403af6d2021-12-21 00:08:43 +00004054bool CameraService::CameraState::containsPhysicalCamera(const std::string& physicalCameraId) const {
4055 return std::find(mPhysicalCameras.begin(), mPhysicalCameras.end(), physicalCameraId)
4056 != mPhysicalCameras.end();
4057}
4058
Shuzhen Wang43858162020-01-10 13:42:15 -08004059bool CameraService::CameraState::addUnavailablePhysicalId(const String8& physicalId) {
4060 Mutex::Autolock lock(mStatusLock);
4061 auto result = mUnavailablePhysicalIds.insert(physicalId);
4062 return result.second;
4063}
4064
4065bool CameraService::CameraState::removeUnavailablePhysicalId(const String8& physicalId) {
4066 Mutex::Autolock lock(mStatusLock);
4067 auto count = mUnavailablePhysicalIds.erase(physicalId);
4068 return count > 0;
4069}
4070
Shuzhen Wange7aa0342021-08-03 11:29:47 -07004071void CameraService::CameraState::setClientPackage(const String8& clientPackage) {
4072 Mutex::Autolock lock(mStatusLock);
4073 mClientPackage = clientPackage;
4074}
4075
4076String8 CameraService::CameraState::getClientPackage() const {
4077 Mutex::Autolock lock(mStatusLock);
4078 return mClientPackage;
4079}
4080
Ruben Brunkcc776712015-02-17 20:18:47 -08004081// ----------------------------------------------------------------------------
Ruben Brunk99e69712015-05-26 17:25:07 -07004082// ClientEventListener
4083// ----------------------------------------------------------------------------
4084
4085void CameraService::ClientEventListener::onClientAdded(
4086 const resource_policy::ClientDescriptor<String8,
4087 sp<CameraService::BasicClient>>& descriptor) {
Chih-Hung Hsieh5404ee12016-08-09 14:25:53 -07004088 const auto& basicClient = descriptor.getValue();
Ruben Brunk99e69712015-05-26 17:25:07 -07004089 if (basicClient.get() != nullptr) {
4090 BatteryNotifier& notifier(BatteryNotifier::getInstance());
4091 notifier.noteStartCamera(descriptor.getKey(),
4092 static_cast<int>(basicClient->getClientUid()));
4093 }
4094}
4095
4096void CameraService::ClientEventListener::onClientRemoved(
4097 const resource_policy::ClientDescriptor<String8,
4098 sp<CameraService::BasicClient>>& descriptor) {
Chih-Hung Hsieh5404ee12016-08-09 14:25:53 -07004099 const auto& basicClient = descriptor.getValue();
Ruben Brunk99e69712015-05-26 17:25:07 -07004100 if (basicClient.get() != nullptr) {
4101 BatteryNotifier& notifier(BatteryNotifier::getInstance());
4102 notifier.noteStopCamera(descriptor.getKey(),
4103 static_cast<int>(basicClient->getClientUid()));
4104 }
4105}
4106
4107
4108// ----------------------------------------------------------------------------
Ruben Brunkcc776712015-02-17 20:18:47 -08004109// CameraClientManager
4110// ----------------------------------------------------------------------------
4111
Ruben Brunk99e69712015-05-26 17:25:07 -07004112CameraService::CameraClientManager::CameraClientManager() {
4113 setListener(std::make_shared<ClientEventListener>());
4114}
4115
Ruben Brunkcc776712015-02-17 20:18:47 -08004116CameraService::CameraClientManager::~CameraClientManager() {}
4117
4118sp<CameraService::BasicClient> CameraService::CameraClientManager::getCameraClient(
4119 const String8& id) const {
4120 auto descriptor = get(id);
4121 if (descriptor == nullptr) {
4122 return sp<BasicClient>{nullptr};
4123 }
4124 return descriptor->getValue();
4125}
4126
4127String8 CameraService::CameraClientManager::toString() const {
4128 auto all = getAll();
4129 String8 ret("[");
4130 bool hasAny = false;
4131 for (auto& i : all) {
4132 hasAny = true;
4133 String8 key = i->getKey();
4134 int32_t cost = i->getCost();
4135 int32_t pid = i->getOwnerId();
Emilian Peev8131a262017-02-01 12:33:43 +00004136 int32_t score = i->getPriority().getScore();
4137 int32_t state = i->getPriority().getState();
Ruben Brunkcc776712015-02-17 20:18:47 -08004138 auto conflicting = i->getConflicting();
4139 auto clientSp = i->getValue();
4140 String8 packageName;
Eino-Ville Talvala022f0cb2015-05-19 16:31:16 -07004141 userid_t clientUserId = 0;
Ruben Brunkcc776712015-02-17 20:18:47 -08004142 if (clientSp.get() != nullptr) {
4143 packageName = String8{clientSp->getPackageName()};
Ruben Brunk6267b532015-04-30 17:44:07 -07004144 uid_t clientUid = clientSp->getClientUid();
4145 clientUserId = multiuser_get_user_id(clientUid);
Ruben Brunkcc776712015-02-17 20:18:47 -08004146 }
Emilian Peev8131a262017-02-01 12:33:43 +00004147 ret.appendFormat("\n(Camera ID: %s, Cost: %" PRId32 ", PID: %" PRId32 ", Score: %"
4148 PRId32 ", State: %" PRId32, key.string(), cost, pid, score, state);
Ruben Brunkcc776712015-02-17 20:18:47 -08004149
Ruben Brunk6267b532015-04-30 17:44:07 -07004150 if (clientSp.get() != nullptr) {
4151 ret.appendFormat("User Id: %d, ", clientUserId);
4152 }
Ruben Brunkcc776712015-02-17 20:18:47 -08004153 if (packageName.size() != 0) {
4154 ret.appendFormat("Client Package Name: %s", packageName.string());
4155 }
4156
4157 ret.append(", Conflicting Client Devices: {");
4158 for (auto& j : conflicting) {
4159 ret.appendFormat("%s, ", j.string());
4160 }
4161 ret.append("})");
4162 }
4163 if (hasAny) ret.append("\n");
4164 ret.append("]\n");
4165 return ret;
4166}
4167
4168CameraService::DescriptorPtr CameraService::CameraClientManager::makeClientDescriptor(
4169 const String8& key, const sp<BasicClient>& value, int32_t cost,
Emilian Peev8131a262017-02-01 12:33:43 +00004170 const std::set<String8>& conflictingKeys, int32_t score, int32_t ownerId,
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08004171 int32_t state, int32_t oomScoreOffset, bool systemNativeClient) {
Ruben Brunkcc776712015-02-17 20:18:47 -08004172
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08004173 int32_t score_adj = systemNativeClient ? kSystemNativeClientScore : score;
4174 int32_t state_adj = systemNativeClient ? kSystemNativeClientState: state;
Jayant Chowdharyc578a502019-05-08 10:57:54 -07004175
Ruben Brunkcc776712015-02-17 20:18:47 -08004176 return std::make_shared<resource_policy::ClientDescriptor<String8, sp<BasicClient>>>(
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08004177 key, value, cost, conflictingKeys, score_adj, ownerId, state_adj,
4178 systemNativeClient, oomScoreOffset);
Ruben Brunkcc776712015-02-17 20:18:47 -08004179}
4180
4181CameraService::DescriptorPtr CameraService::CameraClientManager::makeClientDescriptor(
Jayant Chowdhary8eb8d912021-05-18 17:41:56 +00004182 const sp<BasicClient>& value, const CameraService::DescriptorPtr& partial,
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08004183 int32_t oomScoreOffset, bool systemNativeClient) {
Ruben Brunkcc776712015-02-17 20:18:47 -08004184 return makeClientDescriptor(partial->getKey(), value, partial->getCost(),
Emilian Peev8131a262017-02-01 12:33:43 +00004185 partial->getConflicting(), partial->getPriority().getScore(),
Jayant Chowdharyeb0169f2022-01-31 00:00:02 -08004186 partial->getOwnerId(), partial->getPriority().getState(), oomScoreOffset,
4187 systemNativeClient);
Ruben Brunkcc776712015-02-17 20:18:47 -08004188}
4189
4190// ----------------------------------------------------------------------------
Cliff Wud8cae102021-03-11 01:37:42 +08004191// InjectionStatusListener
4192// ----------------------------------------------------------------------------
4193
4194void CameraService::InjectionStatusListener::addListener(
4195 const sp<ICameraInjectionCallback>& callback) {
4196 Mutex::Autolock lock(mListenerLock);
4197 if (mCameraInjectionCallback) return;
4198 status_t res = IInterface::asBinder(callback)->linkToDeath(this);
4199 if (res == OK) {
4200 mCameraInjectionCallback = callback;
4201 }
4202}
4203
4204void CameraService::InjectionStatusListener::removeListener() {
4205 Mutex::Autolock lock(mListenerLock);
4206 if (mCameraInjectionCallback == nullptr) {
4207 ALOGW("InjectionStatusListener: mCameraInjectionCallback == nullptr");
4208 return;
4209 }
4210 IInterface::asBinder(mCameraInjectionCallback)->unlinkToDeath(this);
4211 mCameraInjectionCallback = nullptr;
4212}
4213
4214void CameraService::InjectionStatusListener::notifyInjectionError(
Cliff Wud3a05312021-04-26 23:07:31 +08004215 String8 injectedCamId, status_t err) {
Cliff Wud8cae102021-03-11 01:37:42 +08004216 if (mCameraInjectionCallback == nullptr) {
4217 ALOGW("InjectionStatusListener: mCameraInjectionCallback == nullptr");
4218 return;
4219 }
Cliff Wud3a05312021-04-26 23:07:31 +08004220
4221 switch (err) {
4222 case -ENODEV:
4223 mCameraInjectionCallback->onInjectionError(
4224 ICameraInjectionCallback::ERROR_INJECTION_SESSION);
4225 ALOGE("No camera device with ID \"%s\" currently available!",
4226 injectedCamId.string());
4227 break;
4228 case -EBUSY:
4229 mCameraInjectionCallback->onInjectionError(
4230 ICameraInjectionCallback::ERROR_INJECTION_SESSION);
4231 ALOGE("Higher-priority client using camera, ID \"%s\" currently unavailable!",
4232 injectedCamId.string());
4233 break;
4234 case DEAD_OBJECT:
4235 mCameraInjectionCallback->onInjectionError(
4236 ICameraInjectionCallback::ERROR_INJECTION_SESSION);
4237 ALOGE("Camera ID \"%s\" object is dead!",
4238 injectedCamId.string());
4239 break;
4240 case INVALID_OPERATION:
4241 mCameraInjectionCallback->onInjectionError(
4242 ICameraInjectionCallback::ERROR_INJECTION_SESSION);
4243 ALOGE("Camera ID \"%s\" encountered an operating or internal error!",
4244 injectedCamId.string());
4245 break;
4246 case UNKNOWN_TRANSACTION:
4247 mCameraInjectionCallback->onInjectionError(
4248 ICameraInjectionCallback::ERROR_INJECTION_UNSUPPORTED);
4249 ALOGE("Camera ID \"%s\" method doesn't support!",
4250 injectedCamId.string());
4251 break;
4252 default:
4253 mCameraInjectionCallback->onInjectionError(
4254 ICameraInjectionCallback::ERROR_INJECTION_INVALID_ERROR);
4255 ALOGE("Unexpected error %s (%d) opening camera \"%s\"!",
4256 strerror(-err), err, injectedCamId.string());
4257 }
Cliff Wud8cae102021-03-11 01:37:42 +08004258}
4259
4260void CameraService::InjectionStatusListener::binderDied(
4261 const wp<IBinder>& /*who*/) {
Cliff Wud8cae102021-03-11 01:37:42 +08004262 ALOGV("InjectionStatusListener: ICameraInjectionCallback has died");
4263 auto parent = mParent.promote();
4264 if (parent != nullptr) {
Cliff Wud3a05312021-04-26 23:07:31 +08004265 auto clientDescriptor = parent->mActiveClientManager.get(parent->mInjectionInternalCamId);
4266 if (clientDescriptor != nullptr) {
4267 BasicClient* baseClientPtr = clientDescriptor->getValue().get();
4268 baseClientPtr->stopInjection();
4269 }
Cliff Wu3b268182021-07-06 15:44:43 +08004270 parent->clearInjectionParameters();
Cliff Wud8cae102021-03-11 01:37:42 +08004271 }
4272}
4273
4274// ----------------------------------------------------------------------------
4275// CameraInjectionSession
4276// ----------------------------------------------------------------------------
4277
4278binder::Status CameraService::CameraInjectionSession::stopInjection() {
4279 Mutex::Autolock lock(mInjectionSessionLock);
4280 auto parent = mParent.promote();
4281 if (parent == nullptr) {
4282 ALOGE("CameraInjectionSession: Parent is gone");
4283 return STATUS_ERROR(ICameraInjectionCallback::ERROR_INJECTION_SERVICE,
4284 "Camera service encountered error");
4285 }
Cliff Wud3a05312021-04-26 23:07:31 +08004286
4287 status_t res = NO_ERROR;
Cliff Wud3a05312021-04-26 23:07:31 +08004288 auto clientDescriptor = parent->mActiveClientManager.get(parent->mInjectionInternalCamId);
4289 if (clientDescriptor != nullptr) {
4290 BasicClient* baseClientPtr = clientDescriptor->getValue().get();
4291 res = baseClientPtr->stopInjection();
4292 if (res != OK) {
4293 ALOGE("CameraInjectionSession: Failed to stop the injection camera!"
4294 " ret != NO_ERROR: %d", res);
4295 return STATUS_ERROR(ICameraInjectionCallback::ERROR_INJECTION_SESSION,
4296 "Camera session encountered error");
4297 }
4298 }
Cliff Wu3b268182021-07-06 15:44:43 +08004299 parent->clearInjectionParameters();
Cliff Wud8cae102021-03-11 01:37:42 +08004300 return binder::Status::ok();
4301}
4302
4303// ----------------------------------------------------------------------------
Mathias Agopian65ab4712010-07-14 17:59:35 -07004304
4305static const int kDumpLockRetries = 50;
4306static const int kDumpLockSleep = 60000;
4307
4308static bool tryLock(Mutex& mutex)
4309{
4310 bool locked = false;
4311 for (int i = 0; i < kDumpLockRetries; ++i) {
4312 if (mutex.tryLock() == NO_ERROR) {
4313 locked = true;
4314 break;
4315 }
4316 usleep(kDumpLockSleep);
4317 }
4318 return locked;
4319}
4320
Rucha Katakwardf223072021-06-15 10:21:00 -07004321void CameraService::cacheDump() {
4322 if (mMemFd != -1) {
4323 const Vector<String16> args;
4324 ATRACE_CALL();
4325 // Acquiring service lock here will avoid the deadlock since
4326 // cacheDump will not be called during the second disconnect.
4327 Mutex::Autolock lock(mServiceLock);
4328
4329 Mutex::Autolock l(mCameraStatesLock);
4330 // Start collecting the info for open sessions and store it in temp file.
4331 for (const auto& state : mCameraStates) {
4332 String8 cameraId = state.first;
4333 auto clientDescriptor = mActiveClientManager.get(cameraId);
4334 if (clientDescriptor != nullptr) {
4335 dprintf(mMemFd, "== Camera device %s dynamic info: ==\n", cameraId.string());
4336 // Log the current open session info before device is disconnected.
4337 dumpOpenSessionClientLogs(mMemFd, args, cameraId);
4338 }
4339 }
4340 }
4341}
4342
Mathias Agopian65ab4712010-07-14 17:59:35 -07004343status_t CameraService::dump(int fd, const Vector<String16>& args) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07004344 ATRACE_CALL();
4345
Jayant Chowdhary5216b212019-07-17 09:26:23 -07004346 if (checkCallingPermission(sDumpPermission) == false) {
Eino-Ville Talvalad00111e2017-01-31 11:59:12 -08004347 dprintf(fd, "Permission Denial: can't dump CameraService from pid=%d, uid=%d\n",
Jayant Chowdhary12361932018-08-27 14:46:13 -07004348 CameraThreadState::getCallingPid(),
4349 CameraThreadState::getCallingUid());
Eino-Ville Talvala81314182017-01-30 16:13:45 -08004350 return NO_ERROR;
4351 }
Eino-Ville Talvala81314182017-01-30 16:13:45 -08004352 bool locked = tryLock(mServiceLock);
4353 // failed to lock - CameraService is probably deadlocked
4354 if (!locked) {
Eino-Ville Talvalad00111e2017-01-31 11:59:12 -08004355 dprintf(fd, "!! CameraService may be deadlocked !!\n");
Eino-Ville Talvala81314182017-01-30 16:13:45 -08004356 }
Eino-Ville Talvala1527f072015-04-07 15:55:31 -07004357
Eino-Ville Talvala81314182017-01-30 16:13:45 -08004358 if (!mInitialized) {
Eino-Ville Talvalad00111e2017-01-31 11:59:12 -08004359 dprintf(fd, "!! No camera HAL available !!\n");
Ruben Brunkf81648e2014-04-17 16:14:57 -07004360
Eino-Ville Talvala81314182017-01-30 16:13:45 -08004361 // Dump event log for error information
Eino-Ville Talvala1527f072015-04-07 15:55:31 -07004362 dumpEventLog(fd);
Ruben Brunkcc776712015-02-17 20:18:47 -08004363
Eino-Ville Talvala81314182017-01-30 16:13:45 -08004364 if (locked) mServiceLock.unlock();
4365 return NO_ERROR;
4366 }
Eino-Ville Talvalad00111e2017-01-31 11:59:12 -08004367 dprintf(fd, "\n== Service global info: ==\n\n");
4368 dprintf(fd, "Number of camera devices: %d\n", mNumberOfCameras);
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -08004369 dprintf(fd, "Number of normal camera devices: %zu\n", mNormalDeviceIds.size());
Jayant Chowdhary847947d2019-08-30 18:02:59 -07004370 dprintf(fd, "Number of public camera devices visible to API1: %zu\n",
4371 mNormalDeviceIdsWithoutSystemCamera.size());
Yin-Chia Yehc3e9d6f2018-02-06 10:56:32 -08004372 for (size_t i = 0; i < mNormalDeviceIds.size(); i++) {
4373 dprintf(fd, " Device %zu maps to \"%s\"\n", i, mNormalDeviceIds[i].c_str());
4374 }
Eino-Ville Talvala81314182017-01-30 16:13:45 -08004375 String8 activeClientString = mActiveClientManager.toString();
Eino-Ville Talvalad00111e2017-01-31 11:59:12 -08004376 dprintf(fd, "Active Camera Clients:\n%s", activeClientString.string());
4377 dprintf(fd, "Allowed user IDs: %s\n", toString(mAllowedUsers).string());
Eino-Ville Talvala81314182017-01-30 16:13:45 -08004378
4379 dumpEventLog(fd);
4380
4381 bool stateLocked = tryLock(mCameraStatesLock);
4382 if (!stateLocked) {
Eino-Ville Talvalad00111e2017-01-31 11:59:12 -08004383 dprintf(fd, "CameraStates in use, may be deadlocked\n");
Eino-Ville Talvala81314182017-01-30 16:13:45 -08004384 }
4385
Emilian Peevbd8c5032018-02-14 23:05:40 +00004386 int argSize = args.size();
4387 for (int i = 0; i < argSize; i++) {
4388 if (args[i] == TagMonitor::kMonitorOption) {
4389 if (i + 1 < argSize) {
4390 mMonitorTags = String8(args[i + 1]);
4391 }
4392 break;
4393 }
4394 }
4395
Eino-Ville Talvala81314182017-01-30 16:13:45 -08004396 for (auto& state : mCameraStates) {
4397 String8 cameraId = state.first;
Eino-Ville Talvala81314182017-01-30 16:13:45 -08004398
Eino-Ville Talvalad00111e2017-01-31 11:59:12 -08004399 dprintf(fd, "== Camera device %s dynamic info: ==\n", cameraId.string());
Eino-Ville Talvala81314182017-01-30 16:13:45 -08004400
Eino-Ville Talvalad00111e2017-01-31 11:59:12 -08004401 CameraParameters p = state.second->getShimParams();
4402 if (!p.isEmpty()) {
4403 dprintf(fd, " Camera1 API shim is using parameters:\n ");
4404 p.dump(fd, args);
Eino-Ville Talvala81314182017-01-30 16:13:45 -08004405 }
4406
4407 auto clientDescriptor = mActiveClientManager.get(cameraId);
Zhijun He2f140ed2017-02-08 09:57:23 -08004408 if (clientDescriptor != nullptr) {
Rucha Katakwardf223072021-06-15 10:21:00 -07004409 // log the current open session info
4410 dumpOpenSessionClientLogs(fd, args, cameraId);
Zhijun He2f140ed2017-02-08 09:57:23 -08004411 } else {
Rucha Katakwardf223072021-06-15 10:21:00 -07004412 dumpClosedSessionClientLogs(fd, cameraId);
Eino-Ville Talvala81314182017-01-30 16:13:45 -08004413 }
Eino-Ville Talvalad00111e2017-01-31 11:59:12 -08004414
Eino-Ville Talvala81314182017-01-30 16:13:45 -08004415 }
4416
4417 if (stateLocked) mCameraStatesLock.unlock();
4418
Eino-Ville Talvala81314182017-01-30 16:13:45 -08004419 if (locked) mServiceLock.unlock();
4420
Emilian Peevf53f66e2017-04-11 14:29:43 +01004421 mCameraProviderManager->dump(fd, args);
Eino-Ville Talvalad00111e2017-01-31 11:59:12 -08004422
4423 dprintf(fd, "\n== Vendor tags: ==\n\n");
4424
4425 sp<VendorTagDescriptor> desc = VendorTagDescriptor::getGlobalVendorTagDescriptor();
4426 if (desc == NULL) {
Emilian Peev71c73a22017-03-21 16:35:51 +00004427 sp<VendorTagDescriptorCache> cache =
4428 VendorTagDescriptorCache::getGlobalVendorTagCache();
4429 if (cache == NULL) {
4430 dprintf(fd, "No vendor tags.\n");
4431 } else {
4432 cache->dump(fd, /*verbosity*/2, /*indentation*/2);
4433 }
Eino-Ville Talvalad00111e2017-01-31 11:59:12 -08004434 } else {
4435 desc->dump(fd, /*verbosity*/2, /*indentation*/2);
4436 }
4437
Eino-Ville Talvala81314182017-01-30 16:13:45 -08004438 // Dump camera traces if there were any
Eino-Ville Talvalad00111e2017-01-31 11:59:12 -08004439 dprintf(fd, "\n");
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07004440 camera3::CameraTraces::dump(fd);
Eino-Ville Talvala81314182017-01-30 16:13:45 -08004441
4442 // Process dump arguments, if any
4443 int n = args.size();
4444 String16 verboseOption("-v");
4445 String16 unreachableOption("--unreachable");
4446 for (int i = 0; i < n; i++) {
4447 if (args[i] == verboseOption) {
4448 // change logging level
4449 if (i + 1 >= n) continue;
4450 String8 levelStr(args[i+1]);
4451 int level = atoi(levelStr.string());
Eino-Ville Talvalad00111e2017-01-31 11:59:12 -08004452 dprintf(fd, "\nSetting log level to %d.\n", level);
Eino-Ville Talvala81314182017-01-30 16:13:45 -08004453 setLogLevel(level);
Eino-Ville Talvala81314182017-01-30 16:13:45 -08004454 } else if (args[i] == unreachableOption) {
4455 // Dump memory analysis
4456 // TODO - should limit be an argument parameter?
4457 UnreachableMemoryInfo info;
4458 bool success = GetUnreachableMemory(info, /*limit*/ 10000);
4459 if (!success) {
Eino-Ville Talvalad00111e2017-01-31 11:59:12 -08004460 dprintf(fd, "\n== Unable to dump unreachable memory. "
4461 "Try disabling SELinux enforcement. ==\n");
Eino-Ville Talvala81314182017-01-30 16:13:45 -08004462 } else {
Eino-Ville Talvalad00111e2017-01-31 11:59:12 -08004463 dprintf(fd, "\n== Dumping unreachable memory: ==\n");
Eino-Ville Talvala81314182017-01-30 16:13:45 -08004464 std::string s = info.ToString(/*log_contents*/ true);
4465 write(fd, s.c_str(), s.size());
Mathias Agopian65ab4712010-07-14 17:59:35 -07004466 }
4467 }
4468 }
Rucha Katakwardf223072021-06-15 10:21:00 -07004469
4470 bool serviceLocked = tryLock(mServiceLock);
4471
4472 // Dump info from previous open sessions.
4473 // Reposition the offset to beginning of the file before reading
4474
4475 if ((mMemFd >= 0) && (lseek(mMemFd, 0, SEEK_SET) != -1)) {
4476 dprintf(fd, "\n**********Dumpsys from previous open session**********\n");
4477 ssize_t size_read;
4478 char buf[4096];
4479 while ((size_read = read(mMemFd, buf, (sizeof(buf) - 1))) > 0) {
4480 // Read data from file to a small buffer and write it to fd.
4481 write(fd, buf, size_read);
4482 if (size_read == -1) {
4483 ALOGE("%s: Error during reading the file: %s", __FUNCTION__, sFileName);
4484 break;
4485 }
4486 }
4487 dprintf(fd, "\n**********End of Dumpsys from previous open session**********\n");
4488 } else {
4489 ALOGE("%s: Error during reading the file: %s", __FUNCTION__, sFileName);
4490 }
4491
4492 if (serviceLocked) mServiceLock.unlock();
Mathias Agopian65ab4712010-07-14 17:59:35 -07004493 return NO_ERROR;
4494}
4495
Rucha Katakwardf223072021-06-15 10:21:00 -07004496void CameraService::dumpOpenSessionClientLogs(int fd,
4497 const Vector<String16>& args, const String8& cameraId) {
4498 auto clientDescriptor = mActiveClientManager.get(cameraId);
Rucha Katakwar71a0e052022-04-07 15:44:18 -07004499 dprintf(fd, " %s : Device %s is open. Client instance dump:\n",
4500 getFormattedCurrentTime().string(),
4501 cameraId.string());
Rucha Katakwardf223072021-06-15 10:21:00 -07004502 dprintf(fd, " Client priority score: %d state: %d\n",
4503 clientDescriptor->getPriority().getScore(),
4504 clientDescriptor->getPriority().getState());
4505 dprintf(fd, " Client PID: %d\n", clientDescriptor->getOwnerId());
4506
4507 auto client = clientDescriptor->getValue();
4508 dprintf(fd, " Client package: %s\n",
4509 String8(client->getPackageName()).string());
4510
4511 client->dumpClient(fd, args);
4512}
4513
4514void CameraService::dumpClosedSessionClientLogs(int fd, const String8& cameraId) {
4515 dprintf(fd, " Device %s is closed, no client instance\n",
4516 cameraId.string());
4517}
4518
Eino-Ville Talvala1527f072015-04-07 15:55:31 -07004519void CameraService::dumpEventLog(int fd) {
Eino-Ville Talvalad00111e2017-01-31 11:59:12 -08004520 dprintf(fd, "\n== Camera service events log (most recent at top): ==\n");
Eino-Ville Talvala1527f072015-04-07 15:55:31 -07004521
4522 Mutex::Autolock l(mLogLock);
4523 for (const auto& msg : mEventLog) {
Eino-Ville Talvalad00111e2017-01-31 11:59:12 -08004524 dprintf(fd, " %s\n", msg.string());
Eino-Ville Talvala1527f072015-04-07 15:55:31 -07004525 }
4526
4527 if (mEventLog.size() == DEFAULT_EVENT_LOG_LENGTH) {
Eino-Ville Talvalad00111e2017-01-31 11:59:12 -08004528 dprintf(fd, " ...\n");
Eino-Ville Talvala1527f072015-04-07 15:55:31 -07004529 } else if (mEventLog.size() == 0) {
Eino-Ville Talvalad00111e2017-01-31 11:59:12 -08004530 dprintf(fd, " [no events yet]\n");
Eino-Ville Talvala1527f072015-04-07 15:55:31 -07004531 }
Eino-Ville Talvalad00111e2017-01-31 11:59:12 -08004532 dprintf(fd, "\n");
Eino-Ville Talvala1527f072015-04-07 15:55:31 -07004533}
4534
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07004535void CameraService::cacheClientTagDumpIfNeeded(const char *cameraId, BasicClient* client) {
4536 Mutex::Autolock lock(mLogLock);
4537 if (!isClientWatchedLocked(client)) { return; }
4538
4539 std::vector<std::string> dumpVector;
4540 client->dumpWatchedEventsToVector(dumpVector);
4541
4542 if (dumpVector.empty()) { return; }
4543
Avichal Rakesh882c08b2021-12-09 17:47:07 -08004544 std::string dumpString;
4545
4546 String8 currentTime = getFormattedCurrentTime();
4547 dumpString += "Cached @ ";
4548 dumpString += currentTime.string();
4549 dumpString += "\n"; // First line is the timestamp of when client is cached.
4550
4551
Avichal Rakesh1cda16b2021-11-09 16:51:02 -08004552 const String16 &packageName = client->getPackageName();
4553
4554 String8 packageName8 = String8(packageName);
4555 const char *printablePackageName = packageName8.lockBuffer(packageName.size());
4556
Avichal Rakesh882c08b2021-12-09 17:47:07 -08004557
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07004558 size_t i = dumpVector.size();
4559
4560 // Store the string in reverse order (latest last)
4561 while (i > 0) {
4562 i--;
4563 dumpString += cameraId;
4564 dumpString += ":";
Avichal Rakesh1cda16b2021-11-09 16:51:02 -08004565 dumpString += printablePackageName;
4566 dumpString += " ";
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07004567 dumpString += dumpVector[i]; // implicitly ends with '\n'
4568 }
4569
Avichal Rakesh1cda16b2021-11-09 16:51:02 -08004570 packageName8.unlockBuffer();
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07004571 mWatchedClientsDumpCache[packageName] = dumpString;
4572}
4573
Chien-Yu Chen3068d732015-02-09 13:29:57 -08004574void CameraService::handleTorchClientBinderDied(const wp<IBinder> &who) {
Chien-Yu Chen88da5262015-02-17 13:56:46 -08004575 Mutex::Autolock al(mTorchClientMapMutex);
Chien-Yu Chen3068d732015-02-09 13:29:57 -08004576 for (size_t i = 0; i < mTorchClientMap.size(); i++) {
4577 if (mTorchClientMap[i] == who) {
4578 // turn off the torch mode that was turned on by dead client
Chien-Yu Chen88da5262015-02-17 13:56:46 -08004579 String8 cameraId = mTorchClientMap.keyAt(i);
4580 status_t res = mFlashlight->setTorchMode(cameraId, false);
4581 if (res) {
4582 ALOGE("%s: torch client died but couldn't turn off torch: "
4583 "%s (%d)", __FUNCTION__, strerror(-res), res);
4584 return;
4585 }
Chien-Yu Chen3068d732015-02-09 13:29:57 -08004586 mTorchClientMap.removeItemsAt(i);
Chien-Yu Chen3068d732015-02-09 13:29:57 -08004587 break;
4588 }
4589 }
4590}
4591
Ruben Brunkcc776712015-02-17 20:18:47 -08004592/*virtual*/void CameraService::binderDied(const wp<IBinder> &who) {
Igor Murashkinecf17e82012-10-02 16:05:11 -07004593
Igor Murashkin294d0ec2012-10-05 10:44:57 -07004594 /**
Ruben Brunka8ca9152015-04-07 14:23:40 -07004595 * While tempting to promote the wp<IBinder> into a sp, it's actually not supported by the
4596 * binder driver
Igor Murashkin294d0ec2012-10-05 10:44:57 -07004597 */
Yin-Chia Yehdbfcb382018-02-16 11:17:36 -08004598 // PID here is approximate and can be wrong.
Jayant Chowdhary12361932018-08-27 14:46:13 -07004599 logClientDied(CameraThreadState::getCallingPid(), String8("Binder died unexpectedly"));
Ruben Brunka8ca9152015-04-07 14:23:40 -07004600
Chien-Yu Chen3068d732015-02-09 13:29:57 -08004601 // check torch client
4602 handleTorchClientBinderDied(who);
4603
4604 // check camera device client
Ruben Brunkcc776712015-02-17 20:18:47 -08004605 if(!evictClientIdByRemote(who)) {
4606 ALOGV("%s: Java client's binder death already cleaned up (normal case)", __FUNCTION__);
Igor Murashkinecf17e82012-10-02 16:05:11 -07004607 return;
4608 }
4609
Ruben Brunkcc776712015-02-17 20:18:47 -08004610 ALOGE("%s: Java client's binder died, removing it from the list of active clients",
4611 __FUNCTION__);
Igor Murashkinecf17e82012-10-02 16:05:11 -07004612}
4613
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08004614void CameraService::updateStatus(StatusInternal status, const String8& cameraId) {
Ruben Brunkcc776712015-02-17 20:18:47 -08004615 updateStatus(status, cameraId, {});
Igor Murashkinbfc99152013-02-27 12:55:20 -08004616}
4617
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08004618void CameraService::updateStatus(StatusInternal status, const String8& cameraId,
4619 std::initializer_list<StatusInternal> rejectSourceStates) {
Ruben Brunkcc776712015-02-17 20:18:47 -08004620 // Do not lock mServiceLock here or can get into a deadlock from
4621 // connect() -> disconnect -> updateStatus
4622
4623 auto state = getCameraState(cameraId);
4624
4625 if (state == nullptr) {
4626 ALOGW("%s: Could not update the status for %s, no such device exists", __FUNCTION__,
4627 cameraId.string());
4628 return;
Igor Murashkincba2c162013-03-20 15:56:31 -07004629 }
4630
Jayant Chowdhary33e8ef82019-09-27 09:20:42 -07004631 // Avoid calling getSystemCameraKind() with mStatusListenerLock held (b/141756275)
4632 SystemCameraKind deviceKind = SystemCameraKind::PUBLIC;
4633 if (getSystemCameraKind(cameraId, &deviceKind) != OK) {
4634 ALOGE("%s: Invalid camera id %s, skipping", __FUNCTION__, cameraId.string());
4635 return;
4636 }
Jayant Chowdhary5e2cd302020-08-14 02:48:34 +00004637
4638 // Collect the logical cameras without holding mStatusLock in updateStatus
4639 // as that can lead to a deadlock(b/162192331).
4640 auto logicalCameraIds = getLogicalCameras(cameraId);
Ruben Brunkcc776712015-02-17 20:18:47 -08004641 // Update the status for this camera state, then send the onStatusChangedCallbacks to each
Shuzhen Wang43858162020-01-10 13:42:15 -08004642 // of the listeners with both the mStatusLock and mStatusListenerLock held
Shuzhen Wangb8259792021-05-27 09:27:06 -07004643 state->updateStatus(status, cameraId, rejectSourceStates, [this, &deviceKind,
Jayant Chowdhary5e2cd302020-08-14 02:48:34 +00004644 &logicalCameraIds]
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08004645 (const String8& cameraId, StatusInternal status) {
Ruben Brunkcc776712015-02-17 20:18:47 -08004646
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08004647 if (status != StatusInternal::ENUMERATING) {
Chien-Yu Chenf6463fc2015-04-07 15:11:31 -07004648 // Update torch status if it has a flash unit.
4649 Mutex::Autolock al(mTorchStatusMutex);
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08004650 TorchModeStatus torchStatus;
Chien-Yu Chenf6463fc2015-04-07 15:11:31 -07004651 if (getTorchStatusLocked(cameraId, &torchStatus) !=
4652 NAME_NOT_FOUND) {
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08004653 TorchModeStatus newTorchStatus =
4654 status == StatusInternal::PRESENT ?
4655 TorchModeStatus::AVAILABLE_OFF :
4656 TorchModeStatus::NOT_AVAILABLE;
Chien-Yu Chenf6463fc2015-04-07 15:11:31 -07004657 if (torchStatus != newTorchStatus) {
Jayant Chowdhary8c62d892021-03-31 02:13:46 -07004658 onTorchStatusChangedLocked(cameraId, newTorchStatus, deviceKind);
Chien-Yu Chenf6463fc2015-04-07 15:11:31 -07004659 }
4660 }
Ruben Brunkcc776712015-02-17 20:18:47 -08004661 }
4662
4663 Mutex::Autolock lock(mStatusListenerLock);
Jayant Chowdhary5e2cd302020-08-14 02:48:34 +00004664 notifyPhysicalCameraStatusLocked(mapToInterface(status), String16(cameraId),
4665 logicalCameraIds, deviceKind);
Shuzhen Wang43858162020-01-10 13:42:15 -08004666
Ruben Brunkcc776712015-02-17 20:18:47 -08004667 for (auto& listener : mListenerList) {
Jayant Chowdhary90e63692019-10-25 14:13:01 -07004668 bool isVendorListener = listener->isVendorListener();
4669 if (shouldSkipStatusUpdates(deviceKind, isVendorListener,
4670 listener->getListenerPid(), listener->getListenerUid()) ||
Shuzhen Wangb8259792021-05-27 09:27:06 -07004671 isVendorListener) {
4672 ALOGV("Skipping discovery callback for system-only camera device %s",
Jayant Chowdhary5216b212019-07-17 09:26:23 -07004673 cameraId.c_str());
Jayant Chowdharyf949ddd2019-01-29 14:34:11 -08004674 continue;
4675 }
Jayant Chowdhary5216b212019-07-17 09:26:23 -07004676 listener->getListener()->onStatusChanged(mapToInterface(status),
Emilian Peev53722fa2019-02-22 17:47:20 -08004677 String16(cameraId));
Ruben Brunkcc776712015-02-17 20:18:47 -08004678 }
4679 });
Igor Murashkincba2c162013-03-20 15:56:31 -07004680}
4681
Shuzhen Wang695044d2020-03-06 09:02:23 -08004682void CameraService::updateOpenCloseStatus(const String8& cameraId, bool open,
4683 const String16& clientPackageName) {
Shuzhen Wange7aa0342021-08-03 11:29:47 -07004684 auto state = getCameraState(cameraId);
4685 if (state == nullptr) {
4686 ALOGW("%s: Could not update the status for %s, no such device exists", __FUNCTION__,
4687 cameraId.string());
4688 return;
4689 }
4690 if (open) {
4691 state->setClientPackage(String8(clientPackageName));
4692 } else {
4693 state->setClientPackage(String8::empty());
4694 }
4695
Shuzhen Wang695044d2020-03-06 09:02:23 -08004696 Mutex::Autolock lock(mStatusListenerLock);
4697
4698 for (const auto& it : mListenerList) {
4699 if (!it->isOpenCloseCallbackAllowed()) {
4700 continue;
4701 }
4702
4703 binder::Status ret;
4704 String16 cameraId64(cameraId);
4705 if (open) {
4706 ret = it->getListener()->onCameraOpened(cameraId64, clientPackageName);
4707 } else {
4708 ret = it->getListener()->onCameraClosed(cameraId64);
4709 }
4710 if (!ret.isOk()) {
4711 ALOGE("%s: Failed to trigger onCameraOpened/onCameraClosed callback: %d", __FUNCTION__,
4712 ret.exceptionCode());
4713 }
4714 }
4715}
4716
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08004717template<class Func>
4718void CameraService::CameraState::updateStatus(StatusInternal status,
4719 const String8& cameraId,
4720 std::initializer_list<StatusInternal> rejectSourceStates,
4721 Func onStatusUpdatedLocked) {
4722 Mutex::Autolock lock(mStatusLock);
4723 StatusInternal oldStatus = mStatus;
4724 mStatus = status;
4725
4726 if (oldStatus == status) {
4727 return;
4728 }
4729
4730 ALOGV("%s: Status has changed for camera ID %s from %#x to %#x", __FUNCTION__,
4731 cameraId.string(), oldStatus, status);
4732
4733 if (oldStatus == StatusInternal::NOT_PRESENT &&
4734 (status != StatusInternal::PRESENT &&
4735 status != StatusInternal::ENUMERATING)) {
4736
4737 ALOGW("%s: From NOT_PRESENT can only transition into PRESENT or ENUMERATING",
4738 __FUNCTION__);
4739 mStatus = oldStatus;
4740 return;
4741 }
4742
4743 /**
4744 * Sometimes we want to conditionally do a transition.
4745 * For example if a client disconnects, we want to go to PRESENT
4746 * only if we weren't already in NOT_PRESENT or ENUMERATING.
4747 */
4748 for (auto& rejectStatus : rejectSourceStates) {
4749 if (oldStatus == rejectStatus) {
4750 ALOGV("%s: Rejecting status transition for Camera ID %s, since the source "
4751 "state was was in one of the bad states.", __FUNCTION__, cameraId.string());
4752 mStatus = oldStatus;
4753 return;
4754 }
4755 }
4756
4757 onStatusUpdatedLocked(cameraId, status);
4758}
4759
Chien-Yu Chen88da5262015-02-17 13:56:46 -08004760status_t CameraService::getTorchStatusLocked(
4761 const String8& cameraId,
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08004762 TorchModeStatus *status) const {
Chien-Yu Chen88da5262015-02-17 13:56:46 -08004763 if (!status) {
4764 return BAD_VALUE;
4765 }
Chien-Yu Chen3068d732015-02-09 13:29:57 -08004766 ssize_t index = mTorchStatusMap.indexOfKey(cameraId);
4767 if (index == NAME_NOT_FOUND) {
Chien-Yu Chen88da5262015-02-17 13:56:46 -08004768 // invalid camera ID or the camera doesn't have a flash unit
4769 return NAME_NOT_FOUND;
Chien-Yu Chen3068d732015-02-09 13:29:57 -08004770 }
4771
Chien-Yu Chen88da5262015-02-17 13:56:46 -08004772 *status = mTorchStatusMap.valueAt(index);
4773 return OK;
Chien-Yu Chen3068d732015-02-09 13:29:57 -08004774}
4775
Chien-Yu Chen88da5262015-02-17 13:56:46 -08004776status_t CameraService::setTorchStatusLocked(const String8& cameraId,
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08004777 TorchModeStatus status) {
Chien-Yu Chen3068d732015-02-09 13:29:57 -08004778 ssize_t index = mTorchStatusMap.indexOfKey(cameraId);
4779 if (index == NAME_NOT_FOUND) {
4780 return BAD_VALUE;
4781 }
Eino-Ville Talvalaf51fca22016-12-13 11:25:55 -08004782 mTorchStatusMap.editValueAt(index) = status;
Chien-Yu Chen3068d732015-02-09 13:29:57 -08004783
4784 return OK;
4785}
4786
Jayant Chowdhary5e2cd302020-08-14 02:48:34 +00004787std::list<String16> CameraService::getLogicalCameras(
4788 const String8& physicalCameraId) {
4789 std::list<String16> retList;
Shuzhen Wang43858162020-01-10 13:42:15 -08004790 Mutex::Autolock lock(mCameraStatesLock);
4791 for (const auto& state : mCameraStates) {
Shuzhen Wang403af6d2021-12-21 00:08:43 +00004792 if (state.second->containsPhysicalCamera(physicalCameraId.c_str())) {
4793 retList.emplace_back(String16(state.first));
Shuzhen Wang43858162020-01-10 13:42:15 -08004794 }
Jayant Chowdhary5e2cd302020-08-14 02:48:34 +00004795 }
4796 return retList;
4797}
4798
4799void CameraService::notifyPhysicalCameraStatusLocked(int32_t status,
4800 const String16& physicalCameraId, const std::list<String16>& logicalCameraIds,
4801 SystemCameraKind deviceKind) {
4802 // mStatusListenerLock is expected to be locked
4803 for (const auto& logicalCameraId : logicalCameraIds) {
Shuzhen Wang43858162020-01-10 13:42:15 -08004804 for (auto& listener : mListenerList) {
Jayant Chowdhary5e2cd302020-08-14 02:48:34 +00004805 // Note: we check only the deviceKind of the physical camera id
4806 // since, logical camera ids and their physical camera ids are
4807 // guaranteed to have the same system camera kind.
Jayant Chowdharyd1478ce2020-05-07 17:35:23 -07004808 if (shouldSkipStatusUpdates(deviceKind, listener->isVendorListener(),
4809 listener->getListenerPid(), listener->getListenerUid())) {
4810 ALOGV("Skipping discovery callback for system-only camera device %s",
Jayant Chowdhary5e2cd302020-08-14 02:48:34 +00004811 String8(physicalCameraId).c_str());
Jayant Chowdharyd1478ce2020-05-07 17:35:23 -07004812 continue;
4813 }
Shuzhen Wang43858162020-01-10 13:42:15 -08004814 listener->getListener()->onPhysicalCameraStatusChanged(status,
Jayant Chowdhary5e2cd302020-08-14 02:48:34 +00004815 logicalCameraId, physicalCameraId);
Shuzhen Wang43858162020-01-10 13:42:15 -08004816 }
4817 }
4818}
4819
Jayant Chowdhary5e2cd302020-08-14 02:48:34 +00004820
Svet Ganova453d0d2018-01-11 15:37:58 -08004821void CameraService::blockClientsForUid(uid_t uid) {
4822 const auto clients = mActiveClientManager.getAll();
4823 for (auto& current : clients) {
4824 if (current != nullptr) {
4825 const auto basicClient = current->getValue();
4826 if (basicClient.get() != nullptr && basicClient->getClientUid() == uid) {
4827 basicClient->block();
4828 }
4829 }
4830 }
4831}
4832
Michael Grooverd1d435a2018-12-18 17:39:42 -08004833void CameraService::blockAllClients() {
4834 const auto clients = mActiveClientManager.getAll();
4835 for (auto& current : clients) {
4836 if (current != nullptr) {
4837 const auto basicClient = current->getValue();
4838 if (basicClient.get() != nullptr) {
4839 basicClient->block();
4840 }
4841 }
4842 }
4843}
4844
Svet Ganova453d0d2018-01-11 15:37:58 -08004845// NOTE: This is a remote API - make sure all args are validated
4846status_t CameraService::shellCommand(int in, int out, int err, const Vector<String16>& args) {
4847 if (!checkCallingPermission(sManageCameraPermission, nullptr, nullptr)) {
4848 return PERMISSION_DENIED;
4849 }
4850 if (in == BAD_TYPE || out == BAD_TYPE || err == BAD_TYPE) {
4851 return BAD_VALUE;
4852 }
Nicholas Sauera3620332019-04-03 14:05:17 -07004853 if (args.size() >= 3 && args[0] == String16("set-uid-state")) {
Svet Ganova453d0d2018-01-11 15:37:58 -08004854 return handleSetUidState(args, err);
Nicholas Sauera3620332019-04-03 14:05:17 -07004855 } else if (args.size() >= 2 && args[0] == String16("reset-uid-state")) {
Svet Ganova453d0d2018-01-11 15:37:58 -08004856 return handleResetUidState(args, err);
Nicholas Sauera3620332019-04-03 14:05:17 -07004857 } else if (args.size() >= 2 && args[0] == String16("get-uid-state")) {
Svet Ganova453d0d2018-01-11 15:37:58 -08004858 return handleGetUidState(args, out, err);
Eino-Ville Talvalaf2e37092020-01-07 15:32:32 -08004859 } else if (args.size() >= 2 && args[0] == String16("set-rotate-and-crop")) {
4860 return handleSetRotateAndCrop(args);
4861 } else if (args.size() >= 1 && args[0] == String16("get-rotate-and-crop")) {
4862 return handleGetRotateAndCrop(out);
Shuzhen Wangabbcb6b2020-12-09 22:32:44 -08004863 } else if (args.size() >= 2 && args[0] == String16("set-image-dump-mask")) {
4864 return handleSetImageDumpMask(args);
4865 } else if (args.size() >= 1 && args[0] == String16("get-image-dump-mask")) {
4866 return handleGetImageDumpMask(out);
Eino-Ville Talvala305cec62020-11-12 14:18:17 -08004867 } else if (args.size() >= 2 && args[0] == String16("set-camera-mute")) {
4868 return handleSetCameraMute(args);
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07004869 } else if (args.size() >= 2 && args[0] == String16("watch")) {
Avichal Rakesh84147132021-11-11 17:47:11 -08004870 return handleWatchCommand(args, in, out);
Ravneet74cd3732022-03-30 05:33:03 +00004871 } else if (args.size() >= 2 && args[0] == String16("set-watchdog")) {
4872 return handleSetCameraServiceWatchdog(args);
Svet Ganova453d0d2018-01-11 15:37:58 -08004873 } else if (args.size() == 1 && args[0] == String16("help")) {
4874 printHelp(out);
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07004875 return OK;
Svet Ganova453d0d2018-01-11 15:37:58 -08004876 }
4877 printHelp(err);
4878 return BAD_VALUE;
4879}
4880
4881status_t CameraService::handleSetUidState(const Vector<String16>& args, int err) {
Nicholas Sauera3620332019-04-03 14:05:17 -07004882 String16 packageName = args[1];
4883
Svet Ganova453d0d2018-01-11 15:37:58 -08004884 bool active = false;
4885 if (args[2] == String16("active")) {
4886 active = true;
4887 } else if ((args[2] != String16("idle"))) {
4888 ALOGE("Expected active or idle but got: '%s'", String8(args[2]).string());
4889 return BAD_VALUE;
4890 }
Nicholas Sauera3620332019-04-03 14:05:17 -07004891
4892 int userId = 0;
4893 if (args.size() >= 5 && args[3] == String16("--user")) {
4894 userId = atoi(String8(args[4]));
4895 }
4896
4897 uid_t uid;
4898 if (getUidForPackage(packageName, userId, uid, err) == BAD_VALUE) {
4899 return BAD_VALUE;
4900 }
4901
4902 mUidPolicy->addOverrideUid(uid, packageName, active);
Svet Ganova453d0d2018-01-11 15:37:58 -08004903 return NO_ERROR;
4904}
4905
4906status_t CameraService::handleResetUidState(const Vector<String16>& args, int err) {
Nicholas Sauera3620332019-04-03 14:05:17 -07004907 String16 packageName = args[1];
4908
4909 int userId = 0;
4910 if (args.size() >= 4 && args[2] == String16("--user")) {
4911 userId = atoi(String8(args[3]));
4912 }
4913
4914 uid_t uid;
4915 if (getUidForPackage(packageName, userId, uid, err) == BAD_VALUE) {
Svet Ganova453d0d2018-01-11 15:37:58 -08004916 return BAD_VALUE;
4917 }
Nicholas Sauera3620332019-04-03 14:05:17 -07004918
4919 mUidPolicy->removeOverrideUid(uid, packageName);
Svet Ganova453d0d2018-01-11 15:37:58 -08004920 return NO_ERROR;
4921}
4922
4923status_t CameraService::handleGetUidState(const Vector<String16>& args, int out, int err) {
Nicholas Sauera3620332019-04-03 14:05:17 -07004924 String16 packageName = args[1];
4925
4926 int userId = 0;
4927 if (args.size() >= 4 && args[2] == String16("--user")) {
4928 userId = atoi(String8(args[3]));
4929 }
4930
4931 uid_t uid;
4932 if (getUidForPackage(packageName, userId, uid, err) == BAD_VALUE) {
Svet Ganova453d0d2018-01-11 15:37:58 -08004933 return BAD_VALUE;
4934 }
Nicholas Sauera3620332019-04-03 14:05:17 -07004935
4936 if (mUidPolicy->isUidActive(uid, packageName)) {
Svet Ganova453d0d2018-01-11 15:37:58 -08004937 return dprintf(out, "active\n");
4938 } else {
4939 return dprintf(out, "idle\n");
4940 }
4941}
4942
Eino-Ville Talvalaf2e37092020-01-07 15:32:32 -08004943status_t CameraService::handleSetRotateAndCrop(const Vector<String16>& args) {
4944 int rotateValue = atoi(String8(args[1]));
4945 if (rotateValue < ANDROID_SCALER_ROTATE_AND_CROP_NONE ||
4946 rotateValue > ANDROID_SCALER_ROTATE_AND_CROP_AUTO) return BAD_VALUE;
4947 Mutex::Autolock lock(mServiceLock);
4948
4949 mOverrideRotateAndCropMode = rotateValue;
4950
4951 if (rotateValue == ANDROID_SCALER_ROTATE_AND_CROP_AUTO) return OK;
4952
4953 const auto clients = mActiveClientManager.getAll();
4954 for (auto& current : clients) {
4955 if (current != nullptr) {
4956 const auto basicClient = current->getValue();
4957 if (basicClient.get() != nullptr) {
4958 basicClient->setRotateAndCropOverride(rotateValue);
4959 }
4960 }
4961 }
4962
4963 return OK;
4964}
4965
Ravneet74cd3732022-03-30 05:33:03 +00004966status_t CameraService::handleSetCameraServiceWatchdog(const Vector<String16>& args) {
4967 int enableWatchdog = atoi(String8(args[1]));
4968
4969 if (enableWatchdog < 0 || enableWatchdog > 1) return BAD_VALUE;
4970
4971 Mutex::Autolock lock(mServiceLock);
4972
4973 mCameraServiceWatchdogEnabled = enableWatchdog;
4974
4975 const auto clients = mActiveClientManager.getAll();
4976 for (auto& current : clients) {
4977 if (current != nullptr) {
4978 const auto basicClient = current->getValue();
4979 if (basicClient.get() != nullptr) {
4980 basicClient->setCameraServiceWatchdog(enableWatchdog);
4981 }
4982 }
4983 }
4984
4985 return OK;
4986}
4987
Eino-Ville Talvalaf2e37092020-01-07 15:32:32 -08004988status_t CameraService::handleGetRotateAndCrop(int out) {
4989 Mutex::Autolock lock(mServiceLock);
4990
4991 return dprintf(out, "rotateAndCrop override: %d\n", mOverrideRotateAndCropMode);
4992}
4993
Shuzhen Wangabbcb6b2020-12-09 22:32:44 -08004994status_t CameraService::handleSetImageDumpMask(const Vector<String16>& args) {
4995 char *endPtr;
4996 errno = 0;
4997 String8 maskString8 = String8(args[1]);
4998 long maskValue = strtol(maskString8.c_str(), &endPtr, 10);
4999
5000 if (errno != 0) return BAD_VALUE;
5001 if (endPtr != maskString8.c_str() + maskString8.size()) return BAD_VALUE;
5002 if (maskValue < 0 || maskValue > 1) return BAD_VALUE;
5003
5004 Mutex::Autolock lock(mServiceLock);
5005
5006 mImageDumpMask = maskValue;
5007
5008 return OK;
5009}
5010
5011status_t CameraService::handleGetImageDumpMask(int out) {
5012 Mutex::Autolock lock(mServiceLock);
5013
5014 return dprintf(out, "Image dump mask: %d\n", mImageDumpMask);
5015}
5016
Eino-Ville Talvala305cec62020-11-12 14:18:17 -08005017status_t CameraService::handleSetCameraMute(const Vector<String16>& args) {
5018 int muteValue = strtol(String8(args[1]), nullptr, 10);
5019 if (errno != 0) return BAD_VALUE;
5020
5021 if (muteValue < 0 || muteValue > 1) return BAD_VALUE;
5022 Mutex::Autolock lock(mServiceLock);
5023
5024 mOverrideCameraMuteMode = (muteValue == 1);
5025
5026 const auto clients = mActiveClientManager.getAll();
5027 for (auto& current : clients) {
5028 if (current != nullptr) {
5029 const auto basicClient = current->getValue();
5030 if (basicClient.get() != nullptr) {
5031 if (basicClient->supportsCameraMute()) {
5032 basicClient->setCameraMute(mOverrideCameraMuteMode);
5033 }
5034 }
5035 }
5036 }
5037
5038 return OK;
5039}
Shuzhen Wangabbcb6b2020-12-09 22:32:44 -08005040
Avichal Rakesh84147132021-11-11 17:47:11 -08005041status_t CameraService::handleWatchCommand(const Vector<String16>& args, int inFd, int outFd) {
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005042 if (args.size() >= 3 && args[1] == String16("start")) {
5043 return startWatchingTags(args, outFd);
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07005044 } else if (args.size() == 2 && args[1] == String16("stop")) {
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005045 return stopWatchingTags(outFd);
Avichal Rakesh9e5a1e42021-11-15 12:11:21 -08005046 } else if (args.size() == 2 && args[1] == String16("dump")) {
5047 return printWatchedTags(outFd);
5048 } else if (args.size() >= 2 && args[1] == String16("live")) {
5049 return printWatchedTagsUntilInterrupt(args, inFd, outFd);
Avichal Rakesh3a85d2d2021-11-10 16:21:33 -08005050 } else if (args.size() == 2 && args[1] == String16("clear")) {
5051 return clearCachedMonitoredTagDumps(outFd);
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07005052 }
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005053 dprintf(outFd, "Camera service watch commands:\n"
5054 " start -m <comma_separated_tag_list> [-c <comma_separated_client_list>]\n"
5055 " starts watching the provided tags for clients with provided package\n"
5056 " recognizes tag shorthands like '3a'\n"
5057 " watches all clients if no client is passed, or if 'all' is listed\n"
Avichal Rakesh9e5a1e42021-11-15 12:11:21 -08005058 " dump dumps the monitoring information and exits\n"
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07005059 " stop stops watching all tags\n"
Avichal Rakesh9e5a1e42021-11-15 12:11:21 -08005060 " live [-n <refresh_interval_ms>]\n"
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005061 " prints the monitored information in real time\n"
Avichal Rakesh84147132021-11-11 17:47:11 -08005062 " Hit return to exit\n"
Avichal Rakesh3a85d2d2021-11-10 16:21:33 -08005063 " clear clears all buffers storing information for watch command");
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07005064 return BAD_VALUE;
5065}
5066
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005067status_t CameraService::startWatchingTags(const Vector<String16> &args, int outFd) {
5068 Mutex::Autolock lock(mLogLock);
5069 size_t tagsIdx; // index of '-m'
5070 String16 tags("");
5071 for (tagsIdx = 2; tagsIdx < args.size() && args[tagsIdx] != String16("-m"); tagsIdx++);
5072 if (tagsIdx < args.size() - 1) {
5073 tags = args[tagsIdx + 1];
5074 } else {
5075 dprintf(outFd, "No tags provided.\n");
5076 return BAD_VALUE;
5077 }
5078
5079 size_t clientsIdx; // index of '-c'
5080 String16 clients = kWatchAllClientsFlag; // watch all clients if no clients are provided
5081 for (clientsIdx = 2; clientsIdx < args.size() && args[clientsIdx] != String16("-c");
5082 clientsIdx++);
5083 if (clientsIdx < args.size() - 1) {
5084 clients = args[clientsIdx + 1];
5085 }
5086 parseClientsToWatchLocked(String8(clients));
5087
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07005088 // track tags to initialize future clients with the monitoring information
5089 mMonitorTags = String8(tags);
5090
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005091 bool serviceLock = tryLock(mServiceLock);
5092 int numWatchedClients = 0;
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07005093 auto cameraClients = mActiveClientManager.getAll();
5094 for (const auto &clientDescriptor: cameraClients) {
5095 if (clientDescriptor == nullptr) { continue; }
5096 sp<BasicClient> client = clientDescriptor->getValue();
5097 if (client.get() == nullptr) { continue; }
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005098
5099 if (isClientWatchedLocked(client.get())) {
5100 client->startWatchingTags(mMonitorTags, outFd);
5101 numWatchedClients++;
5102 }
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07005103 }
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005104 dprintf(outFd, "Started watching %d active clients\n", numWatchedClients);
5105
5106 if (serviceLock) { mServiceLock.unlock(); }
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07005107 return OK;
5108}
5109
5110status_t CameraService::stopWatchingTags(int outFd) {
5111 // clear mMonitorTags to prevent new clients from monitoring tags at initialization
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005112 Mutex::Autolock lock(mLogLock);
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07005113 mMonitorTags = String8::empty();
5114
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005115 mWatchedClientPackages.clear();
5116 mWatchedClientsDumpCache.clear();
5117
5118 bool serviceLock = tryLock(mServiceLock);
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07005119 auto cameraClients = mActiveClientManager.getAll();
5120 for (const auto &clientDescriptor : cameraClients) {
5121 if (clientDescriptor == nullptr) { continue; }
5122 sp<BasicClient> client = clientDescriptor->getValue();
5123 if (client.get() == nullptr) { continue; }
5124 client->stopWatchingTags(outFd);
5125 }
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005126 dprintf(outFd, "Stopped watching all clients.\n");
5127 if (serviceLock) { mServiceLock.unlock(); }
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07005128 return OK;
5129}
5130
Avichal Rakesh3a85d2d2021-11-10 16:21:33 -08005131status_t CameraService::clearCachedMonitoredTagDumps(int outFd) {
5132 Mutex::Autolock lock(mLogLock);
5133 size_t clearedSize = mWatchedClientsDumpCache.size();
5134 mWatchedClientsDumpCache.clear();
5135 dprintf(outFd, "Cleared tag information of %zu cached clients.\n", clearedSize);
5136 return OK;
5137}
5138
Avichal Rakesh9e5a1e42021-11-15 12:11:21 -08005139status_t CameraService::printWatchedTags(int outFd) {
5140 Mutex::Autolock logLock(mLogLock);
Avichal Rakesh1cda16b2021-11-09 16:51:02 -08005141 std::set<String16> connectedMonitoredClients;
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005142
Avichal Rakesh9e5a1e42021-11-15 12:11:21 -08005143 bool printedSomething = false; // tracks if any monitoring information was printed
5144 // (from either cached or active clients)
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005145
Avichal Rakesh9e5a1e42021-11-15 12:11:21 -08005146 bool serviceLock = tryLock(mServiceLock);
5147 // get all watched clients that are currently connected
5148 for (const auto &clientDescriptor: mActiveClientManager.getAll()) {
5149 if (clientDescriptor == nullptr) { continue; }
5150
5151 sp<BasicClient> client = clientDescriptor->getValue();
5152 if (client.get() == nullptr) { continue; }
5153 if (!isClientWatchedLocked(client.get())) { continue; }
5154
5155 std::vector<std::string> dumpVector;
5156 client->dumpWatchedEventsToVector(dumpVector);
5157
5158 size_t printIdx = dumpVector.size();
5159 if (printIdx == 0) {
5160 continue;
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005161 }
5162
Avichal Rakesh9e5a1e42021-11-15 12:11:21 -08005163 // Print tag dumps for active client
5164 const String8 &cameraId = clientDescriptor->getKey();
5165 String8 packageName8 = String8(client->getPackageName());
5166 const char *printablePackageName = packageName8.lockBuffer(packageName8.size());
5167 dprintf(outFd, "Client: %s (active)\n", printablePackageName);
5168 while(printIdx > 0) {
5169 printIdx--;
5170 dprintf(outFd, "%s:%s %s", cameraId.string(), printablePackageName,
5171 dumpVector[printIdx].c_str());
Avichal Rakesh3a85d2d2021-11-10 16:21:33 -08005172 }
Avichal Rakesh9e5a1e42021-11-15 12:11:21 -08005173 dprintf(outFd, "\n");
5174 packageName8.unlockBuffer();
5175 printedSomething = true;
5176
5177 connectedMonitoredClients.emplace(client->getPackageName());
5178 }
5179 if (serviceLock) { mServiceLock.unlock(); }
5180
5181 // Print entries in mWatchedClientsDumpCache for clients that are not connected
5182 for (const auto &kv: mWatchedClientsDumpCache) {
5183 const String16 &package = kv.first;
5184 if (connectedMonitoredClients.find(package) != connectedMonitoredClients.end()) {
5185 continue;
5186 }
5187
5188 dprintf(outFd, "Client: %s (cached)\n", String8(package).string());
5189 dprintf(outFd, "%s\n", kv.second.c_str());
5190 printedSomething = true;
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005191 }
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005192
Avichal Rakesh9e5a1e42021-11-15 12:11:21 -08005193 if (!printedSomething) {
5194 dprintf(outFd, "No monitoring information to print.\n");
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005195 }
5196
Avichal Rakesh9e5a1e42021-11-15 12:11:21 -08005197 return OK;
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005198}
5199
Avichal Rakesh84147132021-11-11 17:47:11 -08005200// Print all events in vector `events' that came after lastPrintedEvent
5201void printNewWatchedEvents(int outFd,
5202 const char *cameraId,
5203 const String16 &packageName,
5204 const std::vector<std::string> &events,
5205 const std::string &lastPrintedEvent) {
5206 if (events.empty()) { return; }
5207
5208 // index of lastPrintedEvent in events.
5209 // lastPrintedIdx = events.size() if lastPrintedEvent is not in events
5210 size_t lastPrintedIdx;
5211 for (lastPrintedIdx = 0;
5212 lastPrintedIdx < events.size() && lastPrintedEvent != events[lastPrintedIdx];
5213 lastPrintedIdx++);
5214
5215 if (lastPrintedIdx == 0) { return; } // early exit if no new event in `events`
5216
5217 String8 packageName8(packageName);
5218 const char *printablePackageName = packageName8.lockBuffer(packageName8.size());
5219
5220 // print events in chronological order (latest event last)
5221 size_t idxToPrint = lastPrintedIdx;
5222 do {
5223 idxToPrint--;
5224 dprintf(outFd, "%s:%s %s", cameraId, printablePackageName, events[idxToPrint].c_str());
5225 } while (idxToPrint != 0);
5226
5227 packageName8.unlockBuffer();
5228}
5229
5230// Returns true if adb shell cmd watch should be interrupted based on data in inFd. The watch
5231// command should be interrupted if the user presses the return key, or if user loses any way to
5232// signal interrupt.
5233// If timeoutMs == 0, this function will always return false
5234bool shouldInterruptWatchCommand(int inFd, int outFd, long timeoutMs) {
5235 struct timeval startTime;
5236 int startTimeError = gettimeofday(&startTime, nullptr);
5237 if (startTimeError) {
5238 dprintf(outFd, "Failed waiting for interrupt, aborting.\n");
5239 return true;
5240 }
5241
5242 const nfds_t numFds = 1;
5243 struct pollfd pollFd = { .fd = inFd, .events = POLLIN, .revents = 0 };
5244
5245 struct timeval currTime;
5246 char buffer[2];
5247 while(true) {
5248 int currTimeError = gettimeofday(&currTime, nullptr);
5249 if (currTimeError) {
5250 dprintf(outFd, "Failed waiting for interrupt, aborting.\n");
5251 return true;
5252 }
5253
5254 long elapsedTimeMs = ((currTime.tv_sec - startTime.tv_sec) * 1000L)
5255 + ((currTime.tv_usec - startTime.tv_usec) / 1000L);
5256 int remainingTimeMs = (int) (timeoutMs - elapsedTimeMs);
5257
5258 if (remainingTimeMs <= 0) {
5259 // No user interrupt within timeoutMs, don't interrupt watch command
5260 return false;
5261 }
5262
5263 int numFdsUpdated = poll(&pollFd, numFds, remainingTimeMs);
5264 if (numFdsUpdated < 0) {
5265 dprintf(outFd, "Failed while waiting for user input. Exiting.\n");
5266 return true;
5267 }
5268
5269 if (numFdsUpdated == 0) {
5270 // No user input within timeoutMs, don't interrupt watch command
5271 return false;
5272 }
5273
5274 if (!(pollFd.revents & POLLIN)) {
5275 dprintf(outFd, "Failed while waiting for user input. Exiting.\n");
5276 return true;
5277 }
5278
5279 ssize_t sizeRead = read(inFd, buffer, sizeof(buffer) - 1);
5280 if (sizeRead < 0) {
5281 dprintf(outFd, "Error reading user input. Exiting.\n");
5282 return true;
5283 }
5284
5285 if (sizeRead == 0) {
5286 // Reached end of input fd (can happen if input is piped)
5287 // User has no way to signal an interrupt, so interrupt here
5288 return true;
5289 }
5290
5291 if (buffer[0] == '\n') {
5292 // User pressed return, interrupt watch command.
5293 return true;
5294 }
5295 }
5296}
5297
Avichal Rakesh9e5a1e42021-11-15 12:11:21 -08005298status_t CameraService::printWatchedTagsUntilInterrupt(const Vector<String16> &args,
5299 int inFd, int outFd) {
5300 // Figure out refresh interval, if present in args
5301 long refreshTimeoutMs = 1000L; // refresh every 1s by default
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07005302 if (args.size() > 2) {
5303 size_t intervalIdx; // index of '-n'
5304 for (intervalIdx = 2; intervalIdx < args.size() && String16("-n") != args[intervalIdx];
5305 intervalIdx++);
5306
5307 size_t intervalValIdx = intervalIdx + 1;
5308 if (intervalValIdx < args.size()) {
5309 refreshTimeoutMs = strtol(String8(args[intervalValIdx].string()), nullptr, 10);
5310 if (errno) { return BAD_VALUE; }
5311 }
5312 }
5313
Avichal Rakesh9e5a1e42021-11-15 12:11:21 -08005314 // Set min timeout of 10ms. This prevents edge cases in polling when timeout of 0 is passed.
5315 refreshTimeoutMs = refreshTimeoutMs < 10 ? 10 : refreshTimeoutMs;
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005316
Avichal Rakesh84147132021-11-11 17:47:11 -08005317 dprintf(outFd, "Press return to exit...\n\n");
Avichal Rakesha14d9832021-11-11 01:41:55 -08005318 std::map<String16, std::string> packageNameToLastEvent;
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005319
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07005320 while (true) {
Avichal Rakesha14d9832021-11-11 01:41:55 -08005321 bool serviceLock = tryLock(mServiceLock);
5322 auto cameraClients = mActiveClientManager.getAll();
5323 if (serviceLock) { mServiceLock.unlock(); }
5324
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07005325 for (const auto& clientDescriptor : cameraClients) {
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005326 Mutex::Autolock lock(mLogLock);
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07005327 if (clientDescriptor == nullptr) { continue; }
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07005328
5329 sp<BasicClient> client = clientDescriptor->getValue();
5330 if (client.get() == nullptr) { continue; }
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005331 if (!isClientWatchedLocked(client.get())) { continue; }
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07005332
Avichal Rakesha14d9832021-11-11 01:41:55 -08005333 const String16 &packageName = client->getPackageName();
5334 // This also initializes the map entries with an empty string
5335 const std::string& lastPrintedEvent = packageNameToLastEvent[packageName];
5336
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07005337 std::vector<std::string> latestEvents;
5338 client->dumpWatchedEventsToVector(latestEvents);
5339
5340 if (!latestEvents.empty()) {
Avichal Rakesha14d9832021-11-11 01:41:55 -08005341 String8 cameraId = clientDescriptor->getKey();
5342 const char *printableCameraId = cameraId.lockBuffer(cameraId.size());
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07005343 printNewWatchedEvents(outFd,
Avichal Rakesha14d9832021-11-11 01:41:55 -08005344 printableCameraId,
5345 packageName,
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07005346 latestEvents,
5347 lastPrintedEvent);
Avichal Rakesha14d9832021-11-11 01:41:55 -08005348 packageNameToLastEvent[packageName] = latestEvents[0];
5349 cameraId.unlockBuffer();
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07005350 }
5351 }
Avichal Rakesh9e5a1e42021-11-15 12:11:21 -08005352 if (shouldInterruptWatchCommand(inFd, outFd, refreshTimeoutMs)) {
Avichal Rakesh84147132021-11-11 17:47:11 -08005353 break;
5354 }
Avichal Rakesh7e53cad2021-10-05 13:46:30 -07005355 }
5356 return OK;
5357}
5358
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005359void CameraService::parseClientsToWatchLocked(String8 clients) {
5360 mWatchedClientPackages.clear();
5361
5362 const char *allSentinel = String8(kWatchAllClientsFlag).string();
5363
5364 char *tokenized = clients.lockBuffer(clients.size());
5365 char *savePtr;
5366 char *nextClient = strtok_r(tokenized, ",", &savePtr);
5367
5368 while (nextClient != nullptr) {
5369 if (strcmp(nextClient, allSentinel) == 0) {
5370 // Don't need to track any other package if 'all' is present
5371 mWatchedClientPackages.clear();
5372 mWatchedClientPackages.emplace(kWatchAllClientsFlag);
5373 break;
5374 }
5375
5376 // track package names
5377 mWatchedClientPackages.emplace(nextClient);
5378 nextClient = strtok_r(nullptr, ",", &savePtr);
5379 }
5380 clients.unlockBuffer();
5381}
5382
Svet Ganova453d0d2018-01-11 15:37:58 -08005383status_t CameraService::printHelp(int out) {
5384 return dprintf(out, "Camera service commands:\n"
Nicholas Sauera3620332019-04-03 14:05:17 -07005385 " get-uid-state <PACKAGE> [--user USER_ID] gets the uid state\n"
5386 " set-uid-state <PACKAGE> <active|idle> [--user USER_ID] overrides the uid state\n"
5387 " reset-uid-state <PACKAGE> [--user USER_ID] clears the uid state override\n"
Eino-Ville Talvalaf2e37092020-01-07 15:32:32 -08005388 " set-rotate-and-crop <ROTATION> overrides the rotate-and-crop value for AUTO backcompat\n"
5389 " Valid values 0=0 deg, 1=90 deg, 2=180 deg, 3=270 deg, 4=No override\n"
5390 " get-rotate-and-crop returns the current override rotate-and-crop value\n"
Shuzhen Wangabbcb6b2020-12-09 22:32:44 -08005391 " set-image-dump-mask <MASK> specifies the formats to be saved to disk\n"
5392 " Valid values 0=OFF, 1=ON for JPEG\n"
5393 " get-image-dump-mask returns the current image-dump-mask value\n"
Eino-Ville Talvala305cec62020-11-12 14:18:17 -08005394 " set-camera-mute <0/1> enable or disable camera muting\n"
Avichal Rakesh3a85d2d2021-11-10 16:21:33 -08005395 " watch <start|stop|dump|print|clear> manages tag monitoring in connected clients\n"
Svet Ganova453d0d2018-01-11 15:37:58 -08005396 " help print this message\n");
5397}
5398
Avichal Rakesh7fbc3982021-10-20 04:35:03 -07005399bool CameraService::isClientWatched(const BasicClient *client) {
5400 Mutex::Autolock lock(mLogLock);
5401 return isClientWatchedLocked(client);
5402}
5403
5404bool CameraService::isClientWatchedLocked(const BasicClient *client) {
5405 return mWatchedClientPackages.find(kWatchAllClientsFlag) != mWatchedClientPackages.end() ||
5406 mWatchedClientPackages.find(client->getPackageName()) != mWatchedClientPackages.end();
5407}
5408
Yin-Chia Yehdba03232019-08-19 15:54:28 -07005409int32_t CameraService::updateAudioRestriction() {
5410 Mutex::Autolock lock(mServiceLock);
5411 return updateAudioRestrictionLocked();
5412}
5413
5414int32_t CameraService::updateAudioRestrictionLocked() {
5415 int32_t mode = 0;
5416 // iterate through all active client
5417 for (const auto& i : mActiveClientManager.getAll()) {
5418 const auto clientSp = i->getValue();
5419 mode |= clientSp->getAudioRestriction();
5420 }
5421
5422 bool modeChanged = (mAudioRestriction != mode);
5423 mAudioRestriction = mode;
5424 if (modeChanged) {
5425 mAppOps.setCameraAudioRestriction(mode);
5426 }
5427 return mode;
5428}
5429
Cliff Wu646bd612021-11-23 23:21:29 +08005430status_t CameraService::checkIfInjectionCameraIsPresent(const String8& externalCamId,
5431 sp<BasicClient> clientSp) {
5432 std::unique_ptr<AutoConditionLock> lock =
5433 AutoConditionLock::waitAndAcquire(mServiceLockWrapper);
5434 status_t res = NO_ERROR;
5435 if ((res = checkIfDeviceIsUsable(externalCamId)) != NO_ERROR) {
5436 ALOGW("Device %s is not usable!", externalCamId.string());
5437 mInjectionStatusListener->notifyInjectionError(
5438 externalCamId, UNKNOWN_TRANSACTION);
5439 clientSp->notifyError(
5440 hardware::camera2::ICameraDeviceCallbacks::ERROR_CAMERA_DISCONNECTED,
5441 CaptureResultExtras());
5442
5443 // Do not hold mServiceLock while disconnecting clients, but retain the condition blocking
5444 // other clients from connecting in mServiceLockWrapper if held
5445 mServiceLock.unlock();
5446
5447 // Clear caller identity temporarily so client disconnect PID checks work correctly
5448 int64_t token = CameraThreadState::clearCallingIdentity();
5449 clientSp->disconnect();
5450 CameraThreadState::restoreCallingIdentity(token);
5451
5452 // Reacquire mServiceLock
5453 mServiceLock.lock();
5454 }
5455
5456 return res;
5457}
5458
Cliff Wud3a05312021-04-26 23:07:31 +08005459void CameraService::clearInjectionParameters() {
5460 {
5461 Mutex::Autolock lock(mInjectionParametersLock);
Cliff Wu646bd612021-11-23 23:21:29 +08005462 mInjectionInitPending = false;
Cliff Wud3a05312021-04-26 23:07:31 +08005463 mInjectionInternalCamId = "";
5464 }
5465 mInjectionExternalCamId = "";
Cliff Wud8cae102021-03-11 01:37:42 +08005466 mInjectionStatusListener->removeListener();
Cliff Wud8cae102021-03-11 01:37:42 +08005467}
5468
Mathias Agopian65ab4712010-07-14 17:59:35 -07005469}; // namespace android