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/*
* Copyright (c) 2020, 2023, 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 org.testng.annotations.AfterTest;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.MulticastSocket;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.MulticastSocket;
import java.net.SocketException;
import java.net.SocketPermission;
import java.nio.channels.DatagramChannel;
import java.security.AccessControlException;
import java.security.Permission;
import java.security.PermissionCollection;
import java.security.Permissions;
import java.security.Policy;
import java.security.ProtectionDomain;
import static org.testng.Assert.assertThrows;
/*
* @test
* @bug 8243408
* @summary Check that MulticastSocket throws expected
* Exception when sending a DatagramPacket with port 0
* @run testng/othervm -Djava.security.manager=allow SendPortZero
*/
public class SendPortZero {
private InetAddress loopbackAddr, wildcardAddr;
private MulticastSocket multicastSocket;
private DatagramPacket loopbackZeroPkt, wildcardZeroPkt, wildcardValidPkt;
private static final Class<SocketException> SE = SocketException.class;
private static final Class<AccessControlException> ACE =
AccessControlException.class;
@BeforeTest
public void setUp() throws IOException {
multicastSocket = new MulticastSocket();
byte[] buf = "test".getBytes();
// Addresses
loopbackAddr = InetAddress.getLoopbackAddress();
wildcardAddr = new InetSocketAddress(0).getAddress();
// Packets
// loopback w/port 0
loopbackZeroPkt = new DatagramPacket(buf, 0, buf.length);
loopbackZeroPkt.setAddress(loopbackAddr);
loopbackZeroPkt.setPort(0);
// wildcard w/port 0
wildcardZeroPkt = new DatagramPacket(buf, 0, buf.length);
wildcardZeroPkt.setAddress(wildcardAddr);
wildcardZeroPkt.setPort(0);
// wildcard addr w/valid port
// Not currently tested. See JDK-8236807
wildcardValidPkt = new DatagramPacket(buf, 0, buf.length);
wildcardValidPkt.setAddress(wildcardAddr);
wildcardValidPkt.setPort(multicastSocket.getLocalPort());
}
@DataProvider(name = "data")
public Object[][] variants() {
return new Object[][]{
{ multicastSocket, loopbackZeroPkt },
{ multicastSocket, wildcardZeroPkt },
// Not currently tested. See JDK-8236807
//{ multicastSocket, wildcardValidPkt }
};
}
@Test(dataProvider = "data")
public void testSend(MulticastSocket ms, DatagramPacket pkt) {
assertThrows(SE, () -> ms.send(pkt));
assertThrows(SE, () -> ms.send(pkt, (byte) 0));
}
// Check that 0 port check doesn't override security manager check
@Test(dataProvider = "data")
public void testSendWithSecurityManager(MulticastSocket ms,
DatagramPacket pkt) {
Policy defaultPolicy = Policy.getPolicy();
try {
Policy.setPolicy(new NoSendPolicy());
System.setSecurityManager(new SecurityManager());
assertThrows(ACE, () -> ms.send(pkt));
assertThrows(ACE, () -> ms.send(pkt, (byte) 0));
} finally {
System.setSecurityManager(null);
Policy.setPolicy(defaultPolicy);
}
}
static class NoSendPolicy extends Policy {
final PermissionCollection perms = new Permissions();
{ perms.add(
new SocketPermission("*:0", "connect")); }
public boolean implies(ProtectionDomain domain, Permission perm) {
return !perms.implies(perm);
}
}
@AfterTest
public void tearDown() {
multicastSocket.close();
}
}
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