| /* |
| * Copyright 2007 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 4742177 |
| * @summary Re-test IPv6 (and specifically MulticastSocket) with latest Linux & USAGI code |
| */ |
| import java.net.*; |
| import java.util.concurrent.*; |
| import java.util.*; |
| |
| |
| public class SetOutgoingIf { |
| private static int PORT = 9001; |
| private static String osname; |
| |
| static boolean isWindows() { |
| if (osname == null) |
| osname = System.getProperty("os.name"); |
| return osname.contains("Windows"); |
| } |
| |
| private static boolean hasIPv6() throws Exception { |
| List<NetworkInterface> nics = Collections.list( |
| NetworkInterface.getNetworkInterfaces()); |
| for (NetworkInterface nic : nics) { |
| List<InetAddress> addrs = Collections.list(nic.getInetAddresses()); |
| for (InetAddress addr : addrs) { |
| if (addr instanceof Inet6Address) |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| public static void main(String[] args) throws Exception { |
| if (isWindows()) { |
| System.out.println("The test only run on non-Windows OS. Bye."); |
| return; |
| } |
| |
| if (!hasIPv6()) { |
| System.out.println("No IPv6 available. Bye."); |
| return; |
| } |
| |
| // We need 2 or more network interfaces to run the test |
| // |
| List<NetworkInterface> nics = new ArrayList<NetworkInterface>(); |
| for (NetworkInterface nic : Collections.list(NetworkInterface.getNetworkInterfaces())) { |
| if (!nic.isLoopback()) |
| nics.add(nic); |
| } |
| if (nics.size() <= 1) { |
| System.out.println("Need 2 or more network interfaces to run. Bye."); |
| return; |
| } |
| |
| // We will send packets to one ipv4, one ipv4-mapped, and one ipv6 |
| // multicast group using each network interface :- |
| // 224.1.1.1 --| |
| // ::ffff:224.1.1.2 -----> using network interface #1 |
| // ff02::1:1 --| |
| // 224.1.2.1 --| |
| // ::ffff:224.1.2.2 -----> using network interface #2 |
| // ff02::1:2 --| |
| // and so on. |
| // |
| List<InetAddress> groups = new ArrayList<InetAddress>(); |
| for (int i = 0; i < nics.size(); i++) { |
| InetAddress groupv4 = InetAddress.getByName("224.1." + (i+1) + ".1"); |
| InetAddress groupv4mapped = InetAddress.getByName("::ffff:224.1." + (i+1) + ".2"); |
| InetAddress groupv6 = InetAddress.getByName("ff02::1:" + (i+1)); |
| groups.add(groupv4); |
| groups.add(groupv4mapped); |
| groups.add(groupv6); |
| |
| // use a separated thread to send to those 3 groups |
| Thread sender = new Thread(new Sender(nics.get(i), groupv4, groupv4mapped, groupv6, PORT)); |
| sender.setDaemon(true); // we want sender to stop when main thread exits |
| sender.start(); |
| } |
| |
| // try to receive on each group, then check if the packet comes |
| // from the expected network interface |
| // |
| byte[] buf = new byte[1024]; |
| for (InetAddress group : groups) { |
| MulticastSocket mcastsock = new MulticastSocket(PORT); |
| mcastsock.setSoTimeout(5000); // 5 second |
| DatagramPacket packet = new DatagramPacket(buf, 0, buf.length); |
| |
| mcastsock.joinGroup(new InetSocketAddress(group, PORT), nics.get(groups.indexOf(group) / 3)); |
| |
| try { |
| mcastsock.receive(packet); |
| } catch (Exception e) { |
| // test failed if any exception |
| throw new RuntimeException(e); |
| } |
| |
| // now check which network interface this packet comes from |
| NetworkInterface from = NetworkInterface.getByInetAddress(packet.getAddress()); |
| NetworkInterface shouldbe = nics.get(groups.indexOf(group) / 3); |
| if (!from.equals(shouldbe)) { |
| System.out.println("Packets on group " |
| + group + " should come from " |
| + shouldbe.getName() + ", but came from " |
| + from.getName()); |
| //throw new RuntimeException("Test failed."); |
| } |
| |
| mcastsock.leaveGroup(new InetSocketAddress(group, PORT), nics.get(groups.indexOf(group) / 3)); |
| } |
| } |
| } |
| |
| class Sender implements Runnable { |
| private NetworkInterface nic; |
| private InetAddress group1; |
| private InetAddress group2; |
| private InetAddress group3; |
| private int port; |
| |
| public Sender(NetworkInterface nic, |
| InetAddress groupv4, InetAddress groupv4mapped, InetAddress groupv6, |
| int port) { |
| this.nic = nic; |
| group1 = groupv4; |
| group2 = groupv4mapped; |
| group3 = groupv6; |
| this.port = port; |
| } |
| |
| public void run() { |
| try { |
| MulticastSocket mcastsock = new MulticastSocket(); |
| mcastsock.setNetworkInterface(nic); |
| |
| byte[] buf = "hello world".getBytes(); |
| DatagramPacket packet1 = new DatagramPacket(buf, buf.length, |
| new InetSocketAddress(group1, port)); |
| DatagramPacket packet2 = new DatagramPacket(buf, buf.length, |
| new InetSocketAddress(group2, port)); |
| DatagramPacket packet3 = new DatagramPacket(buf, buf.length, |
| new InetSocketAddress(group3, port)); |
| |
| for (;;) { |
| mcastsock.send(packet1); |
| mcastsock.send(packet2); |
| mcastsock.send(packet3); |
| |
| Thread.currentThread().sleep(1000); // sleep 1 second |
| } |
| } catch (Exception e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |