blob: fa77bc5c0993438878c2048ba854af4b031b96ed (
plain)
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
|
/*
* Copyright (C) 2010 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.
*/
package android.net;
import android.text.TextUtils;
import android.util.Log;
import java.net.InetAddress;
import java.net.Inet4Address;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
/**
* A simple object for retrieving the results of a DHCP request.
* Replaces (internally) the IPv4-only DhcpInfo class.
* @hide
*/
public class DhcpInfoInternal {
private final static String TAG = "DhcpInfoInternal";
public String ipAddress;
public int prefixLength;
public String dns1;
public String dns2;
public String serverAddress;
public int leaseDuration;
private Collection<RouteInfo> mRoutes;
public DhcpInfoInternal() {
mRoutes = new ArrayList<RouteInfo>();
}
public void addRoute(RouteInfo routeInfo) {
mRoutes.add(routeInfo);
}
public Collection<RouteInfo> getRoutes() {
return Collections.unmodifiableCollection(mRoutes);
}
private int convertToInt(String addr) {
if (addr != null) {
try {
InetAddress inetAddress = NetworkUtils.numericToInetAddress(addr);
if (inetAddress instanceof Inet4Address) {
return NetworkUtils.inetAddressToInt(inetAddress);
}
} catch (IllegalArgumentException e) {}
}
return 0;
}
public DhcpInfo makeDhcpInfo() {
DhcpInfo info = new DhcpInfo();
info.ipAddress = convertToInt(ipAddress);
for (RouteInfo route : mRoutes) {
if (route.isDefaultRoute()) {
info.gateway = convertToInt(route.getGateway().getHostAddress());
break;
}
}
try {
InetAddress inetAddress = NetworkUtils.numericToInetAddress(ipAddress);
info.netmask = NetworkUtils.prefixLengthToNetmaskInt(prefixLength);
} catch (IllegalArgumentException e) {}
info.dns1 = convertToInt(dns1);
info.dns2 = convertToInt(dns2);
info.serverAddress = convertToInt(serverAddress);
info.leaseDuration = leaseDuration;
return info;
}
public LinkAddress makeLinkAddress() {
if (TextUtils.isEmpty(ipAddress)) {
Log.e(TAG, "makeLinkAddress with empty ipAddress");
return null;
}
return new LinkAddress(NetworkUtils.numericToInetAddress(ipAddress), prefixLength);
}
public LinkProperties makeLinkProperties() {
LinkProperties p = new LinkProperties();
p.addLinkAddress(makeLinkAddress());
for (RouteInfo route : mRoutes) {
p.addRoute(route);
}
//if empty, connectivity configures default DNS
if (TextUtils.isEmpty(dns1) == false) {
p.addDns(NetworkUtils.numericToInetAddress(dns1));
} else {
Log.d(TAG, "makeLinkProperties with empty dns1!");
}
if (TextUtils.isEmpty(dns2) == false) {
p.addDns(NetworkUtils.numericToInetAddress(dns2));
} else {
Log.d(TAG, "makeLinkProperties with empty dns2!");
}
return p;
}
/* Updates the DHCP fields that need to be retained from
* original DHCP request if the DHCP renewal shows them as
* being empty
*/
public void updateFromDhcpRequest(DhcpInfoInternal orig) {
if (orig == null) return;
if (TextUtils.isEmpty(dns1)) {
dns1 = orig.dns1;
}
if (TextUtils.isEmpty(dns2)) {
dns2 = orig.dns2;
}
if (mRoutes.size() == 0) {
for (RouteInfo route : orig.getRoutes()) {
addRoute(route);
}
}
}
public String toString() {
String routeString = "";
for (RouteInfo route : mRoutes) routeString += route.toString() + " | ";
return "addr: " + ipAddress + "/" + prefixLength +
" mRoutes: " + routeString +
" dns: " + dns1 + "," + dns2 +
" dhcpServer: " + serverAddress +
" leaseDuration: " + leaseDuration;
}
}
|
