Remove host IP from related VPN classes.

...since the daemon (racoon) gets the information by itself.

packages/VpnServices/src/com/android/server/vpn/L2tpIpsecPskService.java

@@ -30,12 +30,11 @@ class L2tpIpsecPskService extends VpnService<L2tpIpsecPskProfile> {
     @Override
     protected void connect(String serverIp, String username, String password)
             throws IOException {
-        String hostIp = getHostIp();
         L2tpIpsecPskProfile p = getProfile();
 
         // IPSEC
         AndroidServiceProxy ipsecService = startService(IPSEC_DAEMON);
-        ipsecService.sendCommand(hostIp, serverIp, L2tpService.L2TP_PORT,
+        ipsecService.sendCommand(serverIp, L2tpService.L2TP_PORT,
                 p.getPresharedKey());
 
         sleep(2000); // 2 seconds

packages/VpnServices/src/com/android/server/vpn/L2tpIpsecService.java

@@ -30,11 +30,9 @@ class L2tpIpsecService extends VpnService<L2tpIpsecProfile> {
     @Override
     protected void connect(String serverIp, String username, String password)
             throws IOException {
-        String hostIp = getHostIp();
-
         // IPSEC
         AndroidServiceProxy ipsecService = startService(IPSEC_DAEMON);
-        ipsecService.sendCommand(hostIp, serverIp, L2tpService.L2TP_PORT,
+        ipsecService.sendCommand(serverIp, L2tpService.L2TP_PORT,
                 getUserkeyPath(), getUserCertPath(), getCaCertPath());
 
         sleep(2000); // 2 seconds

packages/VpnServices/src/com/android/server/vpn/MtpdHelper.java

@@ -48,7 +48,6 @@ class MtpdHelper {
                 "linkname", VPN_LINKNAME,
                 "name", username,
                 "password", password,
-                "ipparam", serverIp + "@" + vpnService.getGatewayIp(),
                 "refuse-eap", "nodefaultroute", "usepeerdns",
                 "idle", "1800",
                 "mtu", "1400",

packages/VpnServices/src/com/android/server/vpn/VpnService.java

@@ -20,7 +20,6 @@ import android.app.Notification;
 import android.app.NotificationManager;
 import android.app.PendingIntent;
 import android.content.Context;
-import android.net.NetworkUtils;
 import android.net.vpn.VpnManager;
 import android.net.vpn.VpnProfile;
 import android.net.vpn.VpnState;
@@ -30,11 +29,8 @@ import android.util.Log;
 
 import java.io.IOException;
 import java.net.InetAddress;
-import java.net.NetworkInterface;
-import java.net.Socket;
 import java.net.UnknownHostException;
 import java.util.ArrayList;
-import java.util.Enumeration;
 import java.util.List;
 
 /**
@@ -69,7 +65,6 @@ abstract class VpnService<E extends VpnProfile> {
     private String mVpnDns1 = "";
     private String mVpnDns2 = "";
     private String mOriginalDomainSuffices;
-    private String mHostIp;
 
     private long mStartTime; // VPN connection start time
 
@@ -107,14 +102,6 @@ abstract class VpnService<E extends VpnProfile> {
         return mProfile;
     }
 
-    /**
-     * Returns the host IP for establishing the VPN connection.
-     */
-    protected String getHostIp() throws IOException {
-        if (mHostIp == null) mHostIp = reallyGetHostIp();
-        return mHostIp;
-    }
-
     /**
      * Returns the IP address of the specified host name.
      */
@@ -122,21 +109,6 @@ abstract class VpnService<E extends VpnProfile> {
         return InetAddress.getByName(hostName).getHostAddress();
     }
 
-    /**
-     * Returns the IP address of the default gateway.
-     */
-    protected String getGatewayIp() throws IOException {
-        Enumeration<NetworkInterface> ifces =
-                NetworkInterface.getNetworkInterfaces();
-        for (; ifces.hasMoreElements(); ) {
-            NetworkInterface ni = ifces.nextElement();
-            int gateway = NetworkUtils.getDefaultRoute(ni.getName());
-            if (gateway == 0) continue;
-            return toInetAddress(gateway).getHostAddress();
-        }
-        throw new IOException("Default gateway is not available");
-    }
-
     /**
      * Sets the system property. The method is blocked until the value is
      * settled in.
@@ -407,21 +379,6 @@ abstract class VpnService<E extends VpnProfile> {
         }
     }
 
-    private String reallyGetHostIp() throws IOException {
-        Enumeration<NetworkInterface> ifces =
-                NetworkInterface.getNetworkInterfaces();
-        for (; ifces.hasMoreElements(); ) {
-            NetworkInterface ni = ifces.nextElement();
-            int gateway = NetworkUtils.getDefaultRoute(ni.getName());
-            if (gateway == 0) continue;
-            Enumeration<InetAddress> addrs = ni.getInetAddresses();
-            for (; addrs.hasMoreElements(); ) {
-                return addrs.nextElement().getHostAddress();
-            }
-        }
-        throw new IOException("Host IP is not available");
-    }
-
     protected void sleep(int ms) {
         try {
             Thread.currentThread().sleep(ms);