217 lines
8.0 KiB
Java
217 lines
8.0 KiB
Java
/*
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* Copyright 2012 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.testsuite.transport.socket;
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import io.netty.bootstrap.Bootstrap;
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import io.netty.buffer.Unpooled;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.channel.ChannelOption;
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import io.netty.channel.SimpleChannelInboundHandler;
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import io.netty.channel.socket.DatagramChannel;
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import io.netty.channel.socket.DatagramPacket;
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import io.netty.channel.socket.InternetProtocolFamily;
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import io.netty.testsuite.transport.TestsuitePermutation;
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import io.netty.util.internal.SocketUtils;
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import org.junit.Assume;
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import org.junit.Test;
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import java.io.IOException;
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import java.net.InetAddress;
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import java.net.InetSocketAddress;
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import java.net.MulticastSocket;
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import java.net.NetworkInterface;
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import java.net.UnknownHostException;
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import java.util.Enumeration;
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import java.util.List;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.TimeUnit;
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import static org.junit.Assert.*;
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public class DatagramMulticastTest extends AbstractDatagramTest {
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@Test
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public void testMulticast() throws Throwable {
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run();
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}
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public void testMulticast(Bootstrap sb, Bootstrap cb) throws Throwable {
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NetworkInterface iface = multicastNetworkInterface();
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Assume.assumeNotNull("No NetworkInterface found that supports multicast and " +
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internetProtocolFamily(), iface);
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MulticastTestHandler mhandler = new MulticastTestHandler();
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sb.handler(new SimpleChannelInboundHandler<Object>() {
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@Override
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public void messageReceived(ChannelHandlerContext ctx, Object msg) throws Exception {
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// Nothing will be sent.
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}
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});
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cb.handler(mhandler);
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sb.option(ChannelOption.IP_MULTICAST_IF, iface);
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sb.option(ChannelOption.SO_REUSEADDR, true);
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cb.option(ChannelOption.IP_MULTICAST_IF, iface);
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cb.option(ChannelOption.SO_REUSEADDR, true);
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DatagramChannel sc = (DatagramChannel) sb.bind(newSocketAddress(iface)).sync().channel();
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assertEquals(iface, sc.config().getNetworkInterface());
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assertInterfaceAddress(iface, sc.config().getInterface());
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InetSocketAddress addr = sc.localAddress();
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cb.localAddress(addr.getPort());
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DatagramChannel cc = (DatagramChannel) cb.bind().sync().channel();
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assertEquals(iface, cc.config().getNetworkInterface());
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assertInterfaceAddress(iface, cc.config().getInterface());
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InetSocketAddress groupAddress = SocketUtils.socketAddress(groupAddress(), addr.getPort());
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cc.joinGroup(groupAddress, iface).sync();
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sc.writeAndFlush(new DatagramPacket(Unpooled.copyInt(1), groupAddress)).sync();
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assertTrue(mhandler.await());
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// leave the group
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cc.leaveGroup(groupAddress, iface).sync();
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// sleep a second to make sure we left the group
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Thread.sleep(1000);
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// we should not receive a message anymore as we left the group before
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sc.writeAndFlush(new DatagramPacket(Unpooled.copyInt(1), groupAddress)).sync();
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mhandler.await();
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cc.config().setLoopbackModeDisabled(false);
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sc.config().setLoopbackModeDisabled(false);
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assertFalse(cc.config().isLoopbackModeDisabled());
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assertFalse(sc.config().isLoopbackModeDisabled());
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cc.config().setLoopbackModeDisabled(true);
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sc.config().setLoopbackModeDisabled(true);
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assertTrue(cc.config().isLoopbackModeDisabled());
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assertTrue(sc.config().isLoopbackModeDisabled());
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sc.close().awaitUninterruptibly();
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cc.close().awaitUninterruptibly();
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}
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private static void assertInterfaceAddress(NetworkInterface networkInterface, InetAddress expected) {
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Enumeration<InetAddress> addresses = networkInterface.getInetAddresses();
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while (addresses.hasMoreElements()) {
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if (expected.equals(addresses.nextElement())) {
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return;
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}
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}
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fail();
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}
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private static final class MulticastTestHandler extends SimpleChannelInboundHandler<DatagramPacket> {
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private final CountDownLatch latch = new CountDownLatch(1);
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private boolean done;
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private volatile boolean fail;
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@Override
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protected void messageReceived(ChannelHandlerContext ctx, DatagramPacket msg) throws Exception {
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if (done) {
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fail = true;
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}
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assertEquals(1, msg.content().readInt());
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latch.countDown();
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// mark the handler as done as we only are supposed to receive one message
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done = true;
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}
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public boolean await() throws Exception {
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boolean success = latch.await(10, TimeUnit.SECONDS);
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if (fail) {
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// fail if we receive an message after we are done
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fail();
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}
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return success;
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}
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}
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@Override
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protected List<TestsuitePermutation.BootstrapComboFactory<Bootstrap, Bootstrap>> newFactories() {
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return SocketTestPermutation.INSTANCE.datagram(internetProtocolFamily());
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}
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private InetSocketAddress newAnySocketAddress() throws UnknownHostException {
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switch (internetProtocolFamily()) {
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case IPv4:
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return new InetSocketAddress(InetAddress.getByName("0.0.0.0"), 0);
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case IPv6:
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return new InetSocketAddress(InetAddress.getByName("::"), 0);
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default:
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throw new AssertionError();
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}
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}
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private InetSocketAddress newSocketAddress(NetworkInterface iface) {
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Enumeration<InetAddress> addresses = iface.getInetAddresses();
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while (addresses.hasMoreElements()) {
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InetAddress address = addresses.nextElement();
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if (internetProtocolFamily().addressType().isAssignableFrom(address.getClass())) {
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return new InetSocketAddress(address, 0);
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}
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}
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throw new AssertionError();
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}
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private NetworkInterface multicastNetworkInterface() throws IOException {
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Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
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while (interfaces.hasMoreElements()) {
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NetworkInterface iface = interfaces.nextElement();
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if (iface.isUp() && iface.supportsMulticast()) {
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Enumeration<InetAddress> addresses = iface.getInetAddresses();
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while (addresses.hasMoreElements()) {
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InetAddress address = addresses.nextElement();
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if (internetProtocolFamily().addressType().isAssignableFrom(address.getClass())) {
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MulticastSocket socket = new MulticastSocket(newAnySocketAddress());
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socket.setReuseAddress(true);
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socket.setNetworkInterface(iface);
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try {
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socket.send(new java.net.DatagramPacket(new byte[] { 1, 2, 3, 4 }, 4,
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new InetSocketAddress(groupAddress(), 12345)));
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return iface;
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} catch (IOException ignore) {
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// Try the next interface
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} finally {
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socket.close();
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}
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}
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}
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}
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}
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return null;
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}
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private String groupAddress() {
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return internetProtocolFamily() == InternetProtocolFamily.IPv4 ?
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"230.0.0.1" : "FF01:0:0:0:0:0:0:101";
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}
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}
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