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/*
* Copyright (c) 2001, 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.
*/
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.net.MulticastSocket;
import java.net.SocketTimeoutException;
import jdk.test.lib.NetworkConfiguration;
import jdk.test.lib.net.IPSupport;
/**
* @test
* @bug 4488458
* @summary IPv4 and IPv6 multicasting broken on Linux
* @library /test/lib
* @build jdk.test.lib.NetworkConfiguration
* jdk.test.lib.Platform
* @run main Test
* @run main/othervm -Djava.net.preferIPv4Stack=true Test
*/
public class Test {
static int count = 0;
static int failures = 0;
void doTest(String address) throws IOException {
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 IOException {
NetworkConfiguration nc = NetworkConfiguration.probe();
// unconditionally test IPv4 address
doTest("224.80.80.80");
// If IPv6 is enabled perform multicast tests with various scopes
if (nc.hasTestableIPv6Address()) {
doTest("ff01::a");
}
if (nc.hasLinkLocalAddress()) {
doTest("ff02::a");
}
if (nc.hasSiteLocalAddress()) {
doTest("ff05::a");
}
if (nc.has_globaladdress()) {
doTest("ff0e::a");
}
}
public static void main(String args[]) throws Exception {
IPSupport.throwSkippedExceptionIfNonOperational();
Test t = new Test();
if (args.length == 0) {
t.allTests();
} else {
for (int i = 0; i < args.length; i++) {
t.doTest(args[i]);
}
}
System.out.println("**********************");
System.out.println(count + " test(s) executed. " + failures +
" test(s) failed.");
if (failures > 0) {
throw new Exception("Test failed - see log file for details");
}
}
}
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