IAppOpsService.cpp revision e88a85e0d0a25c943e974114557770ba10b81847 
1/*
2 * Copyright (C) 2013 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#define LOG_TAG "AppOpsService"
18
19#include <binder/IAppOpsService.h>
20
21#include <utils/Debug.h>
22#include <utils/Log.h>
23#include <binder/Parcel.h>
24#include <utils/String8.h>
25
26#include <private/binder/Static.h>
27
28namespace android {
29
30// ----------------------------------------------------------------------
31
32class BpAppOpsService : public BpInterface<IAppOpsService>
33{
34public:
35    BpAppOpsService(const sp<IBinder>& impl)
36        : BpInterface<IAppOpsService>(impl)
37    {
38    }
39
40    virtual int32_t checkOperation(int32_t code, int32_t uid, const String16& packageName) {
41        Parcel data, reply;
42        data.writeInterfaceToken(IAppOpsService::getInterfaceDescriptor());
43        data.writeInt32(code);
44        data.writeInt32(uid);
45        data.writeString16(packageName);
46        remote()->transact(CHECK_OPERATION_TRANSACTION, data, &reply);
47        // fail on exception
48        if (reply.readExceptionCode() != 0) return MODE_ERRORED;
49        return reply.readInt32();
50    }
51
52    virtual int32_t noteOperation(int32_t code, int32_t uid, const String16& packageName) {
53        Parcel data, reply;
54        data.writeInterfaceToken(IAppOpsService::getInterfaceDescriptor());
55        data.writeInt32(code);
56        data.writeInt32(uid);
57        data.writeString16(packageName);
58        remote()->transact(NOTE_OPERATION_TRANSACTION, data, &reply);
59        // fail on exception
60        if (reply.readExceptionCode() != 0) return MODE_ERRORED;
61        return reply.readInt32();
62    }
63
64    virtual int32_t startOperation(int32_t code, int32_t uid, const String16& packageName) {
65        Parcel data, reply;
66        data.writeInterfaceToken(IAppOpsService::getInterfaceDescriptor());
67        data.writeInt32(code);
68        data.writeInt32(uid);
69        data.writeString16(packageName);
70        remote()->transact(START_OPERATION_TRANSACTION, data, &reply);
71        // fail on exception
72        if (reply.readExceptionCode() != 0) return MODE_ERRORED;
73        return reply.readInt32();
74    }
75
76    virtual void finishOperation(int32_t code, int32_t uid, const String16& packageName) {
77        Parcel data, reply;
78        data.writeInterfaceToken(IAppOpsService::getInterfaceDescriptor());
79        data.writeInt32(code);
80        data.writeInt32(uid);
81        data.writeString16(packageName);
82        remote()->transact(FINISH_OPERATION_TRANSACTION, data, &reply);
83    }
84
85    virtual void startWatchingMode(int32_t op, const String16& packageName,
86            const sp<IAppOpsCallback>& callback) {
87        Parcel data, reply;
88        data.writeInterfaceToken(IAppOpsService::getInterfaceDescriptor());
89        data.writeInt32(op);
90        data.writeString16(packageName);
91        data.writeStrongBinder(callback->asBinder());
92        remote()->transact(START_WATCHING_MODE_TRANSACTION, data, &reply);
93    }
94
95    virtual void stopWatchingMode(const sp<IAppOpsCallback>& callback) {
96        Parcel data, reply;
97        data.writeInterfaceToken(IAppOpsService::getInterfaceDescriptor());
98        data.writeStrongBinder(callback->asBinder());
99        remote()->transact(STOP_WATCHING_MODE_TRANSACTION, data, &reply);
100    }
101};
102
103IMPLEMENT_META_INTERFACE(AppOpsService, "com.android.internal.app.IAppOpsService");
104
105// ----------------------------------------------------------------------
106
107status_t BnAppOpsService::onTransact(
108    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
109{
110    //printf("AppOpsService received: "); data.print();
111    switch(code) {
112        case CHECK_OPERATION_TRANSACTION: {
113            CHECK_INTERFACE(IAppOpsService, data, reply);
114            int32_t code = data.readInt32();
115            int32_t uid = data.readInt32();
116            String16 packageName = data.readString16();
117            int32_t res = checkOperation(code, uid, packageName);
118            reply->writeNoException();
119            reply->writeInt32(res);
120            return NO_ERROR;
121        } break;
122        case NOTE_OPERATION_TRANSACTION: {
123            CHECK_INTERFACE(IAppOpsService, data, reply);
124            int32_t code = data.readInt32();
125            int32_t uid = data.readInt32();
126            String16 packageName = data.readString16();
127            int32_t res = noteOperation(code, uid, packageName);
128            reply->writeNoException();
129            reply->writeInt32(res);
130            return NO_ERROR;
131        } break;
132        case START_OPERATION_TRANSACTION: {
133            CHECK_INTERFACE(IAppOpsService, data, reply);
134            int32_t code = data.readInt32();
135            int32_t uid = data.readInt32();
136            String16 packageName = data.readString16();
137            int32_t res = startOperation(code, uid, packageName);
138            reply->writeNoException();
139            reply->writeInt32(res);
140            return NO_ERROR;
141        } break;
142        case FINISH_OPERATION_TRANSACTION: {
143            CHECK_INTERFACE(IAppOpsService, data, reply);
144            int32_t code = data.readInt32();
145            int32_t uid = data.readInt32();
146            String16 packageName = data.readString16();
147            finishOperation(code, uid, packageName);
148            reply->writeNoException();
149            return NO_ERROR;
150        } break;
151        case START_WATCHING_MODE_TRANSACTION: {
152            CHECK_INTERFACE(IAppOpsService, data, reply);
153            int32_t op = data.readInt32();
154            String16 packageName = data.readString16();
155            sp<IAppOpsCallback> callback = interface_cast<IAppOpsCallback>(data.readStrongBinder());
156            startWatchingMode(op, packageName, callback);
157            reply->writeNoException();
158            return NO_ERROR;
159        } break;
160        case STOP_WATCHING_MODE_TRANSACTION: {
161            CHECK_INTERFACE(IAppOpsService, data, reply);
162            sp<IAppOpsCallback> callback = interface_cast<IAppOpsCallback>(data.readStrongBinder());
163            stopWatchingMode(callback);
164            reply->writeNoException();
165            return NO_ERROR;
166        } break;
167        default:
168            return BBinder::onTransact(code, data, reply, flags);
169    }
170}
171
172}; // namespace android
173