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/*
* 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;
/**
* 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> routes;
public DhcpInfoInternal() {
routes = new ArrayList<RouteInfo>();
}
public void addRoute(RouteInfo routeInfo) {
routes.add(routeInfo);
}
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 : routes) {
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 : routes) {
p.addRoute(route);
}
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;
}
public String toString() {
String routeString = "";
for (RouteInfo route : routes) routeString += route.toString() + " | ";
return "addr: " + ipAddress + "/" + prefixLength +
" routes: " + routeString +
" dns: " + dns1 + "," + dns2 +
" dhcpServer: " + serverAddress +
" leaseDuration: " + leaseDuration;
}
}
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