1 /*
2  * Copyright (C) 2018 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  */
16 
17 #include "CameraThreadState.h"
18 #include <binder/IPCThreadState.h>
19 #include <hwbinder/IPCThreadState.h>
20 #include <binderthreadstate/CallerUtils.h>
21 #include <unistd.h>
22 
23 namespace android {
24 
getCallingUid()25 int CameraThreadState::getCallingUid() {
26     if (getCurrentServingCall() == BinderCallType::HWBINDER) {
27         return hardware::IPCThreadState::self()->getCallingUid();
28     }
29     return IPCThreadState::self()->getCallingUid();
30 }
31 
getCallingPid()32 int CameraThreadState::getCallingPid() {
33     if (getCurrentServingCall() == BinderCallType::HWBINDER) {
34         return hardware::IPCThreadState::self()->getCallingPid();
35     }
36     return IPCThreadState::self()->getCallingPid();
37 }
38 
clearCallingIdentity()39 int64_t CameraThreadState::clearCallingIdentity() {
40     if (getCurrentServingCall() == BinderCallType::HWBINDER) {
41         return hardware::IPCThreadState::self()->clearCallingIdentity();
42     }
43     return IPCThreadState::self()->clearCallingIdentity();
44 }
45 
restoreCallingIdentity(int64_t token)46 void CameraThreadState::restoreCallingIdentity(int64_t token) {
47     if (getCurrentServingCall() == BinderCallType::HWBINDER) {
48         hardware::IPCThreadState::self()->restoreCallingIdentity(token);
49     } else {
50         IPCThreadState::self()->restoreCallingIdentity(token);
51     }
52     return;
53 }
54 
55 } // android
56