1/*
2 * Copyright (C) 2005 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//
18#ifndef ANDROID_ISERVICE_MANAGER_H
19#define ANDROID_ISERVICE_MANAGER_H
20
21#include <binder/IInterface.h>
22#include <utils/Vector.h>
23#include <utils/String16.h>
24
25namespace android {
26
27// ----------------------------------------------------------------------
28
29class IServiceManager : public IInterface
30{
31public:
32    DECLARE_META_INTERFACE(ServiceManager)
33    /**
34     * Must match values in IServiceManager.java
35     */
36    /* Allows services to dump sections according to priorities. */
37    static const int DUMP_FLAG_PRIORITY_CRITICAL = 1 << 0;
38    static const int DUMP_FLAG_PRIORITY_HIGH = 1 << 1;
39    static const int DUMP_FLAG_PRIORITY_NORMAL = 1 << 2;
40    /**
41     * Services are by default registered with a DEFAULT dump priority. DEFAULT priority has the
42     * same priority as NORMAL priority but the services are not called with dump priority
43     * arguments.
44     */
45    static const int DUMP_FLAG_PRIORITY_DEFAULT = 1 << 3;
46    static const int DUMP_FLAG_PRIORITY_ALL = DUMP_FLAG_PRIORITY_CRITICAL |
47            DUMP_FLAG_PRIORITY_HIGH | DUMP_FLAG_PRIORITY_NORMAL | DUMP_FLAG_PRIORITY_DEFAULT;
48    static const int DUMP_FLAG_PROTO = 1 << 4;
49
50    /**
51     * Retrieve an existing service, blocking for a few seconds
52     * if it doesn't yet exist.
53     */
54    virtual sp<IBinder>         getService( const String16& name) const = 0;
55
56    /**
57     * Retrieve an existing service, non-blocking.
58     */
59    virtual sp<IBinder>         checkService( const String16& name) const = 0;
60
61    /**
62     * Register a service.
63     */
64    virtual status_t addService(const String16& name, const sp<IBinder>& service,
65                                bool allowIsolated = false,
66                                int dumpsysFlags = DUMP_FLAG_PRIORITY_DEFAULT) = 0;
67
68    /**
69     * Return list of all existing services.
70     */
71    virtual Vector<String16> listServices(int dumpsysFlags = DUMP_FLAG_PRIORITY_ALL) = 0;
72
73    enum {
74        GET_SERVICE_TRANSACTION = IBinder::FIRST_CALL_TRANSACTION,
75        CHECK_SERVICE_TRANSACTION,
76        ADD_SERVICE_TRANSACTION,
77        LIST_SERVICES_TRANSACTION,
78    };
79};
80
81sp<IServiceManager> defaultServiceManager();
82
83template<typename INTERFACE>
84status_t getService(const String16& name, sp<INTERFACE>* outService)
85{
86    const sp<IServiceManager> sm = defaultServiceManager();
87    if (sm != NULL) {
88        *outService = interface_cast<INTERFACE>(sm->getService(name));
89        if ((*outService) != NULL) return NO_ERROR;
90    }
91    return NAME_NOT_FOUND;
92}
93
94bool checkCallingPermission(const String16& permission);
95bool checkCallingPermission(const String16& permission,
96                            int32_t* outPid, int32_t* outUid);
97bool checkPermission(const String16& permission, pid_t pid, uid_t uid);
98
99}; // namespace android
100
101#endif // ANDROID_ISERVICE_MANAGER_H
102
103