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/*
* Copyright (c) 2012-2018 Arne Schwabe
* Distributed under the GNU GPL v2 with additional terms. For full terms see the file doc/LICENSE.txt
*/
package de.blinkt.openvpn.core;
import android.content.Context;
import android.net.*;
import android.os.Build;
import android.text.TextUtils;
import android.util.Log;
import androidx.core.net.ConnectivityManagerCompat;
import java.net.Inet4Address;
import java.net.Inet6Address;
import java.util.Vector;
public class NetworkUtils {
private static final String TAG = NetworkUtils.class.getSimpleName();
public static Vector<String> getLocalNetworks(Context c, boolean ipv6) {
Vector<String> nets = new Vector<>();
ConnectivityManager conn = (ConnectivityManager) c.getSystemService(Context.CONNECTIVITY_SERVICE);
Network[] networks = conn.getAllNetworks();
for (Network network : networks) {
try {
NetworkInfo ni = conn.getNetworkInfo(network);
LinkProperties li = conn.getLinkProperties(network);
NetworkCapabilities nc = conn.getNetworkCapabilities(network);
if (nc == null) {
continue;
}
// Skip VPN networks like ourselves
if (nc.hasTransport(NetworkCapabilities.TRANSPORT_VPN))
continue;
// Also skip mobile networks
if (nc.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR))
continue;
for (LinkAddress la : li.getLinkAddresses()) {
if ((la.getAddress() instanceof Inet4Address && !ipv6) ||
(la.getAddress() instanceof Inet6Address && ipv6))
nets.add(la.toString());
}
} catch (SecurityException se) {
se.printStackTrace();
}
}
return nets;
}
}
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