/* * Copyright (c) 2001, 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 4488458 * @summary IPv4 and IPv6 multicasting broken on Linux */ import java.net.*; import java.io.IOException; import java.util.Enumeration; public class Test { static int count = 0; static int failures = 0; void doTest(String address) throws Exception { boolean failed = false; InetAddress ia = InetAddress.getByName(address); count++; System.out.println("**********************"); System.out.println("Test " + count + ": " + ia); MulticastSocket mc = new MulticastSocket(); int port = mc.getLocalPort(); DatagramSocket s1 = new DatagramSocket(); byte msg[] = "Hello".getBytes(); DatagramPacket p = new DatagramPacket(msg, msg.length); mc.setSoTimeout(2000); try { for (int i=0; i<2; i++) { System.out.println("Join: " + ia); mc.joinGroup(ia); /* packets should be received */ for (int j=0; j<2; j++) { p.setAddress(ia); p.setPort(port); System.out.println("Send packet to: " + ia); s1.send(p); try { mc.receive(p); System.out.println("Got packet! - Good."); } catch (SocketTimeoutException e) { failed = true; System.out.println("Failed: No packet received within timeout!!!"); } } System.out.println("Leave: " + ia); mc.leaveGroup(ia); /* * If there are multiple interface we might be a couple of * copies still in our queue */ try { while (true) { mc.receive(p); } } catch (SocketTimeoutException e) { } /* packets should not be received */ p.setAddress(ia); p.setPort(port); s1.send(p); try { mc.receive(p); System.out.println("Failed: Got packet after leaving group!!!"); failed = true; } catch (SocketTimeoutException e) { System.out.println("No packet received within timeout! - Good."); } } } catch (IOException ioe) { System.out.println("Failed: Unexpected exception thrown: "); ioe.printStackTrace(); failed = true; } mc.close(); s1.close(); if (failed) { failures++; System.out.println("Test failed!!"); } else { System.out.println("Test passed."); } } void allTests() throws Exception { /* * Assume machine has IPv4 address */ doTest("224.80.80.80"); /* * Check if IPv6 is enabled and the scope of the addresses */ boolean has_ipv6 = false; boolean has_siteaddress = false; boolean has_linklocaladdress = false; boolean has_globaladdress = false; Enumeration nifs = NetworkInterface.getNetworkInterfaces(); while (nifs.hasMoreElements()) { NetworkInterface ni = (NetworkInterface)nifs.nextElement(); Enumeration addrs = ni.getInetAddresses(); while (addrs.hasMoreElements()) { InetAddress ia = (InetAddress)addrs.nextElement(); if (ia instanceof Inet6Address) { has_ipv6 = true; if (ia.isLinkLocalAddress()) has_linklocaladdress = true; if (ia.isSiteLocalAddress()) has_siteaddress = true; if (!ia.isLinkLocalAddress() && !ia.isSiteLocalAddress() && !ia.isLoopbackAddress()) { has_globaladdress = true; } } } } /* * If IPv6 is enabled perform multicast tests with various scopes */ if (has_ipv6) { doTest("ff01::a"); } if (has_linklocaladdress) { doTest("ff02::a"); } if (has_siteaddress) { doTest("ff05::a"); } if (has_globaladdress) { doTest("ff0e::a"); } } public static void main(String args[]) throws Exception { Test t = new Test(); if (args.length == 0) { t.allTests(); } else { for (int i=0; i 0) { throw new Exception("Test failed - see log file for details"); } } }