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 com.android.internal.net;
18
19import android.app.PendingIntent;
20import android.content.ComponentName;
21import android.content.Context;
22import android.content.Intent;
23import android.content.pm.PackageManager;
24import android.content.pm.PackageManager.NameNotFoundException;
25import android.content.pm.ResolveInfo;
26import android.content.res.Resources;
27import android.net.IpPrefix;
28import android.net.LinkAddress;
29import android.net.Network;
30import android.net.RouteInfo;
31import android.os.Parcel;
32import android.os.Parcelable;
33import android.os.UserHandle;
34
35import java.net.Inet4Address;
36import java.net.InetAddress;
37import java.util.ArrayList;
38import java.util.List;
39
40/**
41 * A simple container used to carry information in VpnBuilder, VpnDialogs,
42 * and com.android.server.connectivity.Vpn. Internal use only.
43 *
44 * @hide
45 */
46public class VpnConfig implements Parcelable {
47
48    public static final String SERVICE_INTERFACE = "android.net.VpnService";
49
50    public static final String DIALOGS_PACKAGE = "com.android.vpndialogs";
51
52    public static final String LEGACY_VPN = "[Legacy VPN]";
53
54    public static Intent getIntentForConfirmation() {
55        Intent intent = new Intent();
56        ComponentName componentName = ComponentName.unflattenFromString(
57                Resources.getSystem().getString(
58                        com.android.internal.R.string.config_customVpnConfirmDialogComponent));
59        intent.setClassName(componentName.getPackageName(), componentName.getClassName());
60        return intent;
61    }
62
63    /** NOTE: This should only be used for legacy VPN. */
64    public static PendingIntent getIntentForStatusPanel(Context context) {
65        Intent intent = new Intent();
66        intent.setClassName(DIALOGS_PACKAGE, DIALOGS_PACKAGE + ".ManageDialog");
67        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_NO_HISTORY |
68                Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
69        return PendingIntent.getActivityAsUser(context, 0, intent, 0, null, UserHandle.CURRENT);
70    }
71
72    public static CharSequence getVpnLabel(Context context, String packageName)
73            throws NameNotFoundException {
74        PackageManager pm = context.getPackageManager();
75        Intent intent = new Intent(SERVICE_INTERFACE);
76        intent.setPackage(packageName);
77        List<ResolveInfo> services = pm.queryIntentServices(intent, 0 /* flags */);
78        if (services != null && services.size() == 1) {
79            // This app contains exactly one VPN service. Call loadLabel, which will attempt to
80            // load the service's label, and fall back to the app label if none is present.
81            return services.get(0).loadLabel(pm);
82        } else {
83            return pm.getApplicationInfo(packageName, 0).loadLabel(pm);
84        }
85    }
86
87    public String user;
88    public String interfaze;
89    public String session;
90    public int mtu = -1;
91    public List<LinkAddress> addresses = new ArrayList<LinkAddress>();
92    public List<RouteInfo> routes = new ArrayList<RouteInfo>();
93    public List<String> dnsServers;
94    public List<String> searchDomains;
95    public List<String> allowedApplications;
96    public List<String> disallowedApplications;
97    public PendingIntent configureIntent;
98    public long startTime = -1;
99    public boolean legacy;
100    public boolean blocking;
101    public boolean allowBypass;
102    public boolean allowIPv4;
103    public boolean allowIPv6;
104    public Network[] underlyingNetworks;
105
106    public void updateAllowedFamilies(InetAddress address) {
107        if (address instanceof Inet4Address) {
108            allowIPv4 = true;
109        } else {
110            allowIPv6 = true;
111        }
112    }
113
114    public void addLegacyRoutes(String routesStr) {
115        if (routesStr.trim().equals("")) {
116            return;
117        }
118        String[] routes = routesStr.trim().split(" ");
119        for (String route : routes) {
120            //each route is ip/prefix
121            RouteInfo info = new RouteInfo(new IpPrefix(route), null);
122            this.routes.add(info);
123            updateAllowedFamilies(info.getDestination().getAddress());
124        }
125    }
126
127    public void addLegacyAddresses(String addressesStr) {
128        if (addressesStr.trim().equals("")) {
129            return;
130        }
131        String[] addresses = addressesStr.trim().split(" ");
132        for (String address : addresses) {
133            //each address is ip/prefix
134            LinkAddress addr = new LinkAddress(address);
135            this.addresses.add(addr);
136            updateAllowedFamilies(addr.getAddress());
137        }
138    }
139
140    @Override
141    public int describeContents() {
142        return 0;
143    }
144
145    @Override
146    public void writeToParcel(Parcel out, int flags) {
147        out.writeString(user);
148        out.writeString(interfaze);
149        out.writeString(session);
150        out.writeInt(mtu);
151        out.writeTypedList(addresses);
152        out.writeTypedList(routes);
153        out.writeStringList(dnsServers);
154        out.writeStringList(searchDomains);
155        out.writeStringList(allowedApplications);
156        out.writeStringList(disallowedApplications);
157        out.writeParcelable(configureIntent, flags);
158        out.writeLong(startTime);
159        out.writeInt(legacy ? 1 : 0);
160        out.writeInt(blocking ? 1 : 0);
161        out.writeInt(allowBypass ? 1 : 0);
162        out.writeInt(allowIPv4 ? 1 : 0);
163        out.writeInt(allowIPv6 ? 1 : 0);
164        out.writeTypedArray(underlyingNetworks, flags);
165    }
166
167    public static final Parcelable.Creator<VpnConfig> CREATOR =
168            new Parcelable.Creator<VpnConfig>() {
169        @Override
170        public VpnConfig createFromParcel(Parcel in) {
171            VpnConfig config = new VpnConfig();
172            config.user = in.readString();
173            config.interfaze = in.readString();
174            config.session = in.readString();
175            config.mtu = in.readInt();
176            in.readTypedList(config.addresses, LinkAddress.CREATOR);
177            in.readTypedList(config.routes, RouteInfo.CREATOR);
178            config.dnsServers = in.createStringArrayList();
179            config.searchDomains = in.createStringArrayList();
180            config.allowedApplications = in.createStringArrayList();
181            config.disallowedApplications = in.createStringArrayList();
182            config.configureIntent = in.readParcelable(null);
183            config.startTime = in.readLong();
184            config.legacy = in.readInt() != 0;
185            config.blocking = in.readInt() != 0;
186            config.allowBypass = in.readInt() != 0;
187            config.allowIPv4 = in.readInt() != 0;
188            config.allowIPv6 = in.readInt() != 0;
189            config.underlyingNetworks = in.createTypedArray(Network.CREATOR);
190            return config;
191        }
192
193        @Override
194        public VpnConfig[] newArray(int size) {
195            return new VpnConfig[size];
196        }
197    };
198}
199