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/*
* Copyright (c) 2019, 2024, 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.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.MulticastSocket;
import java.net.NetworkInterface;
import java.util.ArrayList;
import java.util.List;
import jdk.test.lib.NetworkConfiguration;
import jdk.test.lib.net.IPSupport;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import static java.lang.String.format;
import static java.lang.System.out;
import static java.net.StandardSocketOptions.IP_MULTICAST_IF;
import static java.util.stream.Collectors.toList;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertTrue;
/**
* @test
* @bug 8236441
* @summary Bound MulticastSocket fails when setting outbound interface on Windows
* @library /test/lib
* @run testng IPMulticastIF
* @run testng/othervm -Djava.net.preferIPv4Stack=true IPMulticastIF
* @run testng/othervm -Djava.net.preferIPv6Addresses=true IPMulticastIF
* @run testng/othervm -Djava.net.preferIPv6Addresses=true -Djava.net.preferIPv4Stack=true IPMulticastIF
*/
public class IPMulticastIF {
@BeforeTest
public void sanity() {
IPSupport.throwSkippedExceptionIfNonOperational();
NetworkConfiguration.printSystemConfiguration(out);
}
@DataProvider(name = "scenarios")
public Object[][] positive() throws Exception {
List<InetAddress> addrs = List.of(InetAddress.getLocalHost(),
InetAddress.getLoopbackAddress());
List<Object[]> list = new ArrayList<>();
NetworkConfiguration nc = NetworkConfiguration.probe();
// retains only network interface whose bound addresses match
addrs.stream().forEach(a -> nc.multicastInterfaces(true)
.filter(nif -> nif.inetAddresses().toList().contains(a))
.map(nif -> new Object[] { new InetSocketAddress(a, 0), nif })
.forEach(list::add) );
// any network interface should work with the wildcard address
nc.multicastInterfaces(true)
.map(nif -> new Object[] {new InetSocketAddress(0), nif})
.forEach(list::add);
return list.stream().toArray(Object[][]::new);
}
@DataProvider(name = "interfaces")
public Object[][] interfaces() throws Exception {
List<Object[]> list = new ArrayList<>();
NetworkConfiguration nc = NetworkConfiguration.probe();
nc.multicastInterfaces(true)
.map(nif -> new Object[] {nif})
.forEach(list::add);
return list.stream().toArray(Object[][]::new);
}
@Test(dataProvider = "scenarios")
public void testSetGetInterfaceBound(InetSocketAddress bindAddr, NetworkInterface nif)
throws Exception
{
out.println(format("\n\n--- testSetGetInterfaceBound bindAddr=[%s], nif=[%s]", bindAddr, nif));
try (MulticastSocket ms = new MulticastSocket(bindAddr)) {
ms.setNetworkInterface(nif);
NetworkInterface msNetIf = ms.getNetworkInterface();
assertEquals(msNetIf, nif);
}
}
@Test(dataProvider = "interfaces")
public void testSetGetInterfaceUnbound(NetworkInterface nif)
throws Exception
{
out.println(format("\n\n--- testSetGetInterfaceUnbound nif=[%s]", nif));
try (MulticastSocket ms = new MulticastSocket()) {
ms.setNetworkInterface(nif);
NetworkInterface msNetIf = ms.getNetworkInterface();
assertEquals(msNetIf, nif);
}
}
@Test(dataProvider = "scenarios")
public void testSetGetOptionBound(InetSocketAddress bindAddr, NetworkInterface nif)
throws Exception
{
out.println(format("\n\n--- testSetGetOptionBound bindAddr=[%s], nif=[%s]", bindAddr, nif));
try (MulticastSocket ms = new MulticastSocket(bindAddr)) {
ms.setOption(IP_MULTICAST_IF, nif);
NetworkInterface msNetIf = ms.getOption(IP_MULTICAST_IF);
assertEquals(msNetIf, nif);
}
}
@Test(dataProvider = "interfaces")
public void testSetGetOptionUnbound(NetworkInterface nif)
throws Exception
{
out.println(format("\n\n--- testSetGetOptionUnbound nif=[%s]", nif));
try (MulticastSocket ms = new MulticastSocket()) {
ms.setOption(IP_MULTICAST_IF, nif);
NetworkInterface msNetIf = ms.getOption(IP_MULTICAST_IF);
assertEquals(msNetIf, nif);
}
}
// -- get without set
@DataProvider(name = "bindAddresses")
public Object[][] bindAddresses() throws Exception {
return new Object[][] {
{ new InetSocketAddress(InetAddress.getLocalHost(), 0) },
{ new InetSocketAddress(InetAddress.getLoopbackAddress(), 0) },
};
}
@Test(dataProvider = "bindAddresses")
public void testGetInterfaceBound(InetSocketAddress bindAddr)
throws Exception
{
out.println(format("\n\n--- testGetInterfaceBound bindAddr=[%s]", bindAddr));
try (MulticastSocket ms = new MulticastSocket(bindAddr)) {
assertPlaceHolder(ms.getNetworkInterface());
}
}
@Test
public void testGetInterfaceUnbound() throws Exception {
out.println("\n\n--- testGetInterfaceUnbound ");
try (MulticastSocket ms = new MulticastSocket()) {
assertPlaceHolder(ms.getNetworkInterface());
}
}
@Test(dataProvider = "bindAddresses")
public void testGetOptionBound(InetSocketAddress bindAddr)
throws Exception
{
out.println(format("\n\n--- testGetOptionBound bindAddr=[%s]", bindAddr));
try (MulticastSocket ms = new MulticastSocket(bindAddr)) {
assertEquals(ms.getOption(IP_MULTICAST_IF), null);
}
}
@Test
public void testGetOptionUnbound() throws Exception {
out.println("\n\n--- testGetOptionUnbound ");
try (MulticastSocket ms = new MulticastSocket()) {
assertEquals(ms.getOption(IP_MULTICAST_IF), null);
}
}
// Asserts that the placeholder NetworkInterface has a single InetAddress
// that represent any local address.
static void assertPlaceHolder(NetworkInterface nif) {
List<InetAddress> addrs = nif.inetAddresses().collect(toList());
assertEquals(addrs.size(), 1);
assertTrue(addrs.get(0).isAnyLocalAddress());
}
}
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