--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/net/MulticastSocket/SetOutgoingIf.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,181 @@
+/*
+ * 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);
+ }
+ }
+}