NetworkPolicyManager.java revision 1b861278a2051f53ce7955fb7992fa536dc975d9 
1/*
2 * Copyright (C) 2011 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
17package android.net;
18
19import android.content.Context;
20import android.os.RemoteException;
21
22import java.io.PrintWriter;
23
24/**
25 * Manager for creating and modifying network policy rules.
26 *
27 * {@hide}
28 */
29public class NetworkPolicyManager {
30
31    /** No specific network policy, use system default. */
32    public static final int POLICY_NONE = 0x0;
33    /** Reject network usage on paid networks when application in background. */
34    public static final int POLICY_REJECT_PAID_BACKGROUND = 0x1;
35
36    /** All network traffic should be allowed. */
37    public static final int RULE_ALLOW_ALL = 0x0;
38    /** Reject traffic on paid networks. */
39    public static final int RULE_REJECT_PAID = 0x1;
40
41    private INetworkPolicyManager mService;
42
43    public NetworkPolicyManager(INetworkPolicyManager service) {
44        if (service == null) {
45            throw new IllegalArgumentException("missing INetworkPolicyManager");
46        }
47        mService = service;
48    }
49
50    public static NetworkPolicyManager getSystemService(Context context) {
51        return (NetworkPolicyManager) context.getSystemService(Context.NETWORK_POLICY_SERVICE);
52    }
53
54    /**
55     * Set policy flags for specific UID.
56     *
57     * @param policy {@link #POLICY_NONE} or combination of flags like
58     *            {@link #POLICY_REJECT_PAID_BACKGROUND}.
59     */
60    public void setUidPolicy(int uid, int policy) {
61        try {
62            mService.setUidPolicy(uid, policy);
63        } catch (RemoteException e) {
64        }
65    }
66
67    public int getUidPolicy(int uid) {
68        try {
69            return mService.getUidPolicy(uid);
70        } catch (RemoteException e) {
71            return POLICY_NONE;
72        }
73    }
74
75    /** {@hide} */
76    public static void dumpPolicy(PrintWriter fout, int policy) {
77        fout.write("[");
78        if ((policy & POLICY_REJECT_PAID_BACKGROUND) != 0) {
79            fout.write("REJECT_PAID_BACKGROUND");
80        }
81        fout.write("]");
82    }
83
84    /** {@hide} */
85    public static void dumpRules(PrintWriter fout, int rules) {
86        fout.write("[");
87        if ((rules & RULE_REJECT_PAID) != 0) {
88            fout.write("REJECT_PAID");
89        }
90        fout.write("]");
91    }
92
93}
94