1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
|
/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <mutex>
#include <binder/AppOpsManager.h>
#include <binder/Binder.h>
#include <binder/IServiceManager.h>
#include <utils/SystemClock.h>
#include <sys/types.h>
#include <private/android_filesystem_config.h>
#ifdef LOG_TAG
#undef LOG_TAG
#endif
#define LOG_TAG "AppOpsManager"
namespace android {
static const sp<IBinder>& getClientId() {
static pthread_mutex_t gClientIdMutex = PTHREAD_MUTEX_INITIALIZER;
static sp<IBinder> gClientId;
pthread_mutex_lock(&gClientIdMutex);
if (gClientId == nullptr) {
gClientId = sp<BBinder>::make();
}
pthread_mutex_unlock(&gClientIdMutex);
return gClientId;
}
AppOpsManager::AppOpsManager()
{
}
sp<IAppOpsService> AppOpsManager::getService()
{
static String16 _appops("appops");
std::lock_guard<Mutex> scoped_lock(mLock);
int64_t startTime = 0;
sp<IAppOpsService> service = mService;
while (service == nullptr || !IInterface::asBinder(service)->isBinderAlive()) {
sp<IBinder> binder = defaultServiceManager()->checkService(_appops);
if (binder == nullptr) {
// Wait for the app ops service to come back...
if (startTime == 0) {
startTime = uptimeMillis();
ALOGI("Waiting for app ops service");
} else if ((uptimeMillis()-startTime) > 10000) {
ALOGW("Waiting too long for app ops service, giving up");
service = nullptr;
break;
}
sleep(1);
} else {
service = interface_cast<IAppOpsService>(binder);
mService = service;
}
}
return service;
}
int32_t AppOpsManager::checkOp(int32_t op, int32_t uid, const String16& callingPackage)
{
sp<IAppOpsService> service = getService();
return service != nullptr
? service->checkOperation(op, uid, callingPackage)
: AppOpsManager::MODE_IGNORED;
}
int32_t AppOpsManager::checkAudioOpNoThrow(int32_t op, int32_t usage, int32_t uid,
const String16& callingPackage) {
sp<IAppOpsService> service = getService();
return service != nullptr
? service->checkAudioOperation(op, usage, uid, callingPackage)
: AppOpsManager::MODE_IGNORED;
}
int32_t AppOpsManager::noteOp(int32_t op, int32_t uid, const String16& callingPackage) {
return noteOp(op, uid, callingPackage, {},
String16("Legacy AppOpsManager.noteOp call"));
}
int32_t AppOpsManager::noteOp(int32_t op, int32_t uid, const String16& callingPackage,
const std::optional<String16>& attributionTag, const String16& message) {
sp<IAppOpsService> service = getService();
int32_t mode = service != nullptr
? service->noteOperation(op, uid, callingPackage, attributionTag,
shouldCollectNotes(op), message, uid == AID_SYSTEM)
: AppOpsManager::MODE_IGNORED;
return mode;
}
int32_t AppOpsManager::startOpNoThrow(int32_t op, int32_t uid, const String16& callingPackage,
bool startIfModeDefault) {
return startOpNoThrow(op, uid, callingPackage, startIfModeDefault, {},
String16("Legacy AppOpsManager.startOpNoThrow call"));
}
int32_t AppOpsManager::startOpNoThrow(int32_t op, int32_t uid, const String16& callingPackage,
bool startIfModeDefault, const std::optional<String16>& attributionTag,
const String16& message) {
sp<IAppOpsService> service = getService();
int32_t mode = service != nullptr
? service->startOperation(getClientId(), op, uid, callingPackage,
attributionTag, startIfModeDefault, shouldCollectNotes(op), message,
uid == AID_SYSTEM)
: AppOpsManager::MODE_IGNORED;
return mode;
}
void AppOpsManager::finishOp(int32_t op, int32_t uid, const String16& callingPackage) {
finishOp(op, uid, callingPackage, {});
}
void AppOpsManager::finishOp(int32_t op, int32_t uid, const String16& callingPackage,
const std::optional<String16>& attributionTag) {
sp<IAppOpsService> service = getService();
if (service != nullptr) {
service->finishOperation(getClientId(), op, uid, callingPackage, attributionTag);
}
}
void AppOpsManager::startWatchingMode(int32_t op, const String16& packageName,
const sp<IAppOpsCallback>& callback) {
sp<IAppOpsService> service = getService();
if (service != nullptr) {
service->startWatchingMode(op, packageName, callback);
}
}
void AppOpsManager::startWatchingMode(int32_t op, const String16& packageName, int32_t flags,
const sp<IAppOpsCallback>& callback) {
sp<IAppOpsService> service = getService();
if (service != nullptr) {
service->startWatchingModeWithFlags(op, packageName, flags, callback);
}
}
void AppOpsManager::stopWatchingMode(const sp<IAppOpsCallback>& callback) {
sp<IAppOpsService> service = getService();
if (service != nullptr) {
service->stopWatchingMode(callback);
}
}
int32_t AppOpsManager::permissionToOpCode(const String16& permission) {
sp<IAppOpsService> service = getService();
if (service != nullptr) {
return service->permissionToOpCode(permission);
}
return -1;
}
void AppOpsManager::setCameraAudioRestriction(int32_t mode) {
sp<IAppOpsService> service = getService();
if (service != nullptr) {
service->setCameraAudioRestriction(mode);
}
}
// check it the appops needs to be collected and cache result
bool AppOpsManager::shouldCollectNotes(int32_t opcode) {
// Whether an appop should be collected: 0 == not initialized, 1 == don't note, 2 == note
static uint8_t appOpsToNote[AppOpsManager::_NUM_OP] = {0};
if (appOpsToNote[opcode] == 0) {
if (getService()->shouldCollectNotes(opcode)) {
appOpsToNote[opcode] = 2;
} else {
appOpsToNote[opcode] = 1;
}
}
return appOpsToNote[opcode] == 2;
}
} // namespace android
|
