--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/nio/channels/DatagramChannel/PromiscuousIPv6.java Thu Jun 13 09:10:51 2019 +0100
@@ -0,0 +1,233 @@
+/*
+ * Copyright (c) 2018, 2019, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+
+/*
+ * @test
+ * @bug 8215294
+ * @requires os.family == "linux"
+ * @library /test/lib
+ * @build jdk.test.lib.NetworkConfiguration
+ * PromiscuousIPv6
+ * @run main PromiscuousIPv6
+ * @key randomness
+ */
+
+import java.nio.ByteBuffer;
+import java.nio.channels.*;
+import java.net.*;
+import java.util.*;
+import java.io.IOException;
+import jdk.test.lib.NetworkConfiguration;
+import jtreg.SkippedException;
+import static java.net.StandardProtocolFamily.*;
+import static java.nio.charset.StandardCharsets.UTF_8;
+import static java.util.stream.Collectors.toList;
+
+/*
+ * This test was created as a copy of the Promiscuous test and adapted for
+ * IPv6 node-local and link-local multicast addresses on Linux.
+ */
+public class PromiscuousIPv6 {
+
+ static final Random rand = new Random();
+
+ static final ProtocolFamily UNSPEC = () -> "UNSPEC";
+
+ /**
+ * Sends a datagram to the given multicast group
+ */
+ static int sendDatagram(NetworkInterface nif,
+ InetAddress group,
+ int port)
+ throws IOException
+ {
+ ProtocolFamily family = (group instanceof Inet6Address) ? INET6 : INET;
+ DatagramChannel dc = DatagramChannel.open(family)
+ .setOption(StandardSocketOptions.IP_MULTICAST_IF, nif);
+ int id = rand.nextInt();
+ byte[] msg = Integer.toString(id).getBytes(UTF_8);
+ ByteBuffer buf = ByteBuffer.wrap(msg);
+ System.out.format("Send message -> group %s (id=0x%x)\n",
+ group.getHostAddress(), id);
+ dc.send(buf, new InetSocketAddress(group, port));
+ dc.close();
+ return id;
+ }
+
+ /**
+ * Waits (with timeout) for datagram. The {@code datagramExpected}
+ * parameter indicates whether a datagram is expected, and if
+ * {@code true} then {@code id} is the identifier in the payload.
+ */
+ static void receiveDatagram(DatagramChannel dc,
+ String name,
+ boolean datagramExpected,
+ int id)
+ throws IOException
+ {
+ System.out.println("Checking if received by " + name);
+
+ Selector sel = Selector.open();
+ dc.configureBlocking(false);
+ dc.register(sel, SelectionKey.OP_READ);
+ ByteBuffer buf = ByteBuffer.allocateDirect(100);
+
+ try {
+ for (;;) {
+ System.out.println("Waiting to receive message");
+ sel.select(5*1000);
+ SocketAddress sa = dc.receive(buf);
+
+ // no datagram received
+ if (sa == null) {
+ if (datagramExpected) {
+ throw new RuntimeException("Expected message not received");
+ }
+ System.out.println("No message received (correct)");
+ return;
+ }
+
+ // datagram received
+
+ InetAddress sender = ((InetSocketAddress)sa).getAddress();
+ buf.flip();
+ byte[] bytes = new byte[buf.remaining()];
+ buf.get(bytes);
+ String s = new String(bytes, "UTF-8");
+ int receivedId = -1;
+ try {
+ receivedId = Integer.parseInt(s);
+ System.out.format("Received message from %s (id=0x%x)\n",
+ sender, receivedId);
+ } catch (NumberFormatException x) {
+ System.out.format("Received message from %s (msg=%s)\n", sender, s);
+ }
+
+ if (!datagramExpected) {
+ if (receivedId == id)
+ throw new RuntimeException("Message not expected");
+ System.out.println("Message ignored (has wrong id)");
+ } else {
+ if (receivedId == id) {
+ System.out.println("Message expected");
+ return;
+ }
+ System.out.println("Message ignored (wrong sender)");
+ }
+
+ sel.selectedKeys().clear();
+ buf.rewind();
+ }
+ } finally {
+ sel.close();
+ }
+ }
+
+ static void test(ProtocolFamily family,
+ NetworkInterface nif,
+ InetAddress group1,
+ InetAddress group2)
+ throws IOException
+ {
+
+ System.out.format("%nTest family=%s%n", family.name());
+
+ // Bind addresses should include the same network interface / scope, so
+ // as to not reply on the default route when there are multiple interfaces
+ InetAddress bindAddr1 = Inet6Address.getByAddress(null, group1.getAddress(), nif);
+ InetAddress bindAddr2 = Inet6Address.getByAddress(null, group2.getAddress(), nif);
+
+ DatagramChannel dc1 = (family == UNSPEC) ?
+ DatagramChannel.open() : DatagramChannel.open(family);
+ DatagramChannel dc2 = (family == UNSPEC) ?
+ DatagramChannel.open() : DatagramChannel.open(family);
+
+ try {
+ dc1.setOption(StandardSocketOptions.SO_REUSEADDR, true);
+ dc2.setOption(StandardSocketOptions.SO_REUSEADDR, true);
+
+ dc1.bind(new InetSocketAddress(bindAddr1, 0));
+ int port = dc1.socket().getLocalPort();
+ dc2.bind(new InetSocketAddress(bindAddr2, port));
+
+ System.out.format("dc1 joining [%s]:%d @ %s\n",
+ group1.getHostAddress(), port, nif.getName());
+ System.out.format("dc2 joining [%s]:%d @ %s\n",
+ group2.getHostAddress(), port, nif.getName());
+
+ dc1.join(group1, nif);
+ dc2.join(group2, nif);
+
+ int id = sendDatagram(nif, group1, port);
+
+ receiveDatagram(dc1, "dc1", true, id);
+ receiveDatagram(dc2, "dc2", false, id);
+
+ id = sendDatagram(nif, group2, port);
+
+ receiveDatagram(dc1, "dc1", false, id);
+ receiveDatagram(dc2, "dc2", true, id);
+
+ } finally {
+ dc1.close();
+ dc2.close();
+ }
+ }
+
+ public static void main(String[] args) throws IOException {
+
+ String os = System.getProperty("os.name");
+
+ if (!os.equals("Linux")) {
+ throw new SkippedException("This test should be run only on Linux");
+ } else {
+ String osVersion = System.getProperty("os.version");
+ String prefix = "3.10.0";
+ if (osVersion.startsWith(prefix)) {
+ throw new SkippedException(
+ String.format("The behavior under test is known NOT to work on '%s' kernels", prefix));
+ }
+ }
+
+ NetworkConfiguration.printSystemConfiguration(System.out);
+ List<NetworkInterface> nifs = NetworkConfiguration.probe()
+ .ip6MulticastInterfaces()
+ .collect(toList());
+
+ if (nifs.size() == 0) {
+ throw new SkippedException(
+ "No IPv6 interfaces that support multicast found");
+ }
+
+ InetAddress interfaceLocal1 = InetAddress.getByName("ff11::2.3.4.5");
+ InetAddress interfaceLocal2 = InetAddress.getByName("ff11::6.7.8.9");
+
+ InetAddress linkLocal1 = InetAddress.getByName("ff12::2.3.4.5");
+ InetAddress linkLocal2 = InetAddress.getByName("ff12::6.7.8.9");
+
+ for (NetworkInterface nif : nifs) {
+ test(INET6, nif, interfaceLocal1, interfaceLocal2);
+ test(INET6, nif, linkLocal1, linkLocal2);
+ }
+ }
+}