1/* 2 * Copyright (c) 2001, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24/* 25 * @test 26 * @bug 4488458 27 * @summary IPv4 and IPv6 multicasting broken on Linux 28 */ 29import java.net.*; 30import java.io.IOException; 31import java.util.Enumeration; 32 33public class Test { 34 35 static int count = 0; 36 static int failures = 0; 37 38 void doTest(String address) throws Exception { 39 boolean failed = false; 40 41 InetAddress ia = InetAddress.getByName(address); 42 43 count++; 44 System.out.println("**********************"); 45 System.out.println("Test " + count + ": " + ia); 46 47 MulticastSocket mc = new MulticastSocket(); 48 int port = mc.getLocalPort(); 49 DatagramSocket s1 = new DatagramSocket(); 50 51 byte msg[] = "Hello".getBytes(); 52 DatagramPacket p = new DatagramPacket(msg, msg.length); 53 54 mc.setSoTimeout(2000); 55 56 try { 57 for (int i=0; i<2; i++) { 58 59 System.out.println("Join: " + ia); 60 mc.joinGroup(ia); 61 62 /* packets should be received */ 63 64 for (int j=0; j<2; j++) { 65 p.setAddress(ia); 66 p.setPort(port); 67 68 System.out.println("Send packet to: " + ia); 69 s1.send(p); 70 71 try { 72 mc.receive(p); 73 System.out.println("Got packet! - Good."); 74 } catch (SocketTimeoutException e) { 75 failed = true; 76 System.out.println("Failed: No packet received within timeout!!!"); 77 } 78 } 79 80 System.out.println("Leave: " + ia); 81 mc.leaveGroup(ia); 82 83 /* 84 * If there are multiple interface we might be a couple of 85 * copies still in our queue 86 */ 87 try { 88 while (true) { 89 mc.receive(p); 90 } 91 } catch (SocketTimeoutException e) { } 92 93 /* packets should not be received */ 94 95 p.setAddress(ia); 96 p.setPort(port); 97 98 s1.send(p); 99 100 try { 101 mc.receive(p); 102 System.out.println("Failed: Got packet after leaving group!!!"); 103 failed = true; 104 } catch (SocketTimeoutException e) { 105 System.out.println("No packet received within timeout! - Good."); 106 } 107 } 108 109 } catch (IOException ioe) { 110 System.out.println("Failed: Unexpected exception thrown: "); 111 ioe.printStackTrace(); 112 failed = true; 113 } 114 115 mc.close(); 116 s1.close(); 117 118 if (failed) { 119 failures++; 120 System.out.println("Test failed!!"); 121 } else { 122 System.out.println("Test passed."); 123 } 124 } 125 126 void allTests() throws Exception { 127 128 /* 129 * Assume machine has IPv4 address 130 */ 131 doTest("224.80.80.80"); 132 133 /* 134 * Check if IPv6 is enabled and the scope of the addresses 135 */ 136 boolean has_ipv6 = false; 137 boolean has_siteaddress = false; 138 boolean has_linklocaladdress = false; 139 boolean has_globaladdress = false; 140 141 Enumeration nifs = NetworkInterface.getNetworkInterfaces(); 142 while (nifs.hasMoreElements()) { 143 NetworkInterface ni = (NetworkInterface)nifs.nextElement(); 144 Enumeration addrs = ni.getInetAddresses(); 145 146 while (addrs.hasMoreElements()) { 147 InetAddress ia = (InetAddress)addrs.nextElement(); 148 149 if (ia instanceof Inet6Address) { 150 has_ipv6 = true; 151 if (ia.isLinkLocalAddress()) has_linklocaladdress = true; 152 if (ia.isSiteLocalAddress()) has_siteaddress = true; 153 154 if (!ia.isLinkLocalAddress() && 155 !ia.isSiteLocalAddress() && 156 !ia.isLoopbackAddress()) { 157 has_globaladdress = true; 158 } 159 } 160 } 161 } 162 163 /* 164 * If IPv6 is enabled perform multicast tests with various scopes 165 */ 166 if (has_ipv6) { 167 doTest("ff01::a"); 168 } 169 170 if (has_linklocaladdress) { 171 doTest("ff02::a"); 172 } 173 174 if (has_siteaddress) { 175 doTest("ff05::a"); 176 } 177 178 if (has_globaladdress) { 179 doTest("ff0e::a"); 180 } 181 } 182 183 public static void main(String args[]) throws Exception { 184 Test t = new Test(); 185 186 if (args.length == 0) { 187 t.allTests(); 188 } else { 189 for (int i=0; i<args.length; i++) { 190 t.doTest(args[i]); 191 } 192 } 193 194 System.out.println("**********************"); 195 System.out.println(count + " test(s) executed. " + failures + 196 " test(s) failed."); 197 198 if (failures > 0) { 199 throw new Exception("Test failed - see log file for details"); 200 } 201 } 202} 203