249 lines
8.4 KiB
Java
249 lines
8.4 KiB
Java
/*
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* Copyright (c) 2003, 2021, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4868820
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* @key intermittent
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* @summary IPv6 support for Windows XP and 2003 server. This test requires
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* binding to the wildcard address, and as such is susceptible
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* of intermittent failures caused by port reuse policy.
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* @library /test/lib
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* @build jdk.test.lib.NetworkConfiguration
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* jdk.test.lib.Platform
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* @run main TcpTest -d
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*/
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import java.net.*;
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import java.io.*;
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public class TcpTest extends Tests {
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static ServerSocket server, server1, server2;
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static Socket c1, c2, c3, s1, s2, s3;
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static InetAddress s1peer, s2peer;
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static InetAddress ia4any;
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static InetAddress ia6any;
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static Inet6Address ia6addr;
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static Inet4Address ia4addr;
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static {
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ia6addr = getFirstLocalIPv6Address ();
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ia4addr = getFirstLocalIPv4Address ();
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try {
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ia4any = InetAddress.getByName ("0.0.0.0");
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ia6any = InetAddress.getByName ("::0");
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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public static void main (String[] args) throws Exception {
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checkDebug(args);
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if (ia4addr == null) {
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System.out.println ("No IPV4 addresses: exiting test");
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return;
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}
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if (ia6addr == null) {
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System.out.println ("No IPV6 addresses: exiting test");
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return;
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}
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dprintln ("Local Addresses");
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dprintln (ia4addr.toString());
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dprintln (ia6addr.toString());
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test1();
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test2();
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test3();
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test4();
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}
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/* basic TCP connectivity test using IPv6 only and IPv4/IPv6 together */
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static void test1 () throws Exception {
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server = new ServerSocket (0);
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int port = server.getLocalPort();
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// try Ipv6 only
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c1 = new Socket ("::1", port);
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s1 = server.accept ();
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simpleDataExchange (c1, s1);
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s1.close ();
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c1.close();
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// try with both IPv4 and Ipv6
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c1 = new Socket ("127.0.0.1", port);
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c2 = new Socket ("::1", port);
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s1 = server.accept();
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s2 = server.accept();
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s1peer = s1.getInetAddress();
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s2peer = s2.getInetAddress();
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if (s1peer instanceof Inet6Address) {
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t_assert ((s2peer instanceof Inet4Address));
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simpleDataExchange (c2, s1);
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simpleDataExchange (c1, s2);
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} else {
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t_assert ((s2peer instanceof Inet6Address));
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simpleDataExchange (c1, s1);
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simpleDataExchange (c2, s2);
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}
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c1.close();
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c2.close();
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s1.close();
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s2.close();
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server.close ();
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System.out.println ("Test1: OK");
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}
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/** bind tests:
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* 1. bind to specific address IPv4 only (any port)
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* 2. bind to specific address IPv6 only (any port)
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* 3. bind to any address IPv4 (test collision)
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*/
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static void test2 () throws Exception {
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server = new ServerSocket ();
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InetSocketAddress sadr = new InetSocketAddress (ia4addr, 0);
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server.bind (sadr);
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dprintln ("server bound to " + sadr);
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int port = server.getLocalPort();
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InetSocketAddress sadr6 = new InetSocketAddress (ia6addr, port);
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c1 = new Socket (ia4addr, port);
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try {
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dprintln ("connecting to " + ia6addr);
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c2 = new Socket ();
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c2.connect (sadr6, 1000);
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dprintln ("Unexpected successful connection: " + c2);
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// Connect should fail with timeout exception. However, if something else is
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// accepting connections, verify it is not our server.
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server.setSoTimeout(500);
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// Ok if accept() fails because of timeout
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while (true) {
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// acceptedSocket could be connected to c1, but not c2
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try (Socket acceptedSocket = server.accept()) {
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dprintln("accepted socket: " + acceptedSocket);
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if (acceptedSocket.getRemoteSocketAddress().equals(c2.getLocalSocketAddress()))
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throw new RuntimeException("connect to IPv6 address should be refused");
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}
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}
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} catch (IOException e) { }
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server.close ();
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c1.close ();
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if (c2 != null) {
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c2.close();
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}
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/* now try IPv6 only */
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server = new ServerSocket ();
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sadr = new InetSocketAddress (ia6addr, 0);
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dprintln ("binding to " + sadr);
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server.bind (sadr);
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port = server.getLocalPort();
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c1 = new Socket (ia6addr, port);
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try {
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dprintln ("connecting to " + ia4addr);
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c2 = new Socket (ia4addr, port);
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dprintln ("Unexpected successful connection: " + c2);
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// Connect should fail with timeout exception. However, if something else is
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// accepting connections, verify it is not our server.
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server.setSoTimeout(500);
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// Ok if accept() fails because of timeout
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while (true) {
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// acceptedSocket could be connected to c1, but not c2
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try (Socket acceptedSocket = server.accept()) {
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dprintln("accepted socket: " + acceptedSocket);
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if (acceptedSocket.getRemoteSocketAddress().equals(c2.getLocalSocketAddress()))
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throw new RuntimeException("connect to IPv4 address should be refused");
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}
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}
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} catch (IOException e) { }
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server.close ();
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c1.close ();
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if (c2 != null) {
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c2.close();
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}
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System.out.println ("Test2: OK");
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}
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/* Test timeouts on accept(), connect() */
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static void test3 () throws Exception {
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server = new ServerSocket (0);
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server.setSoTimeout (5000);
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int port = server.getLocalPort();
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long t1 = System.currentTimeMillis();
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try {
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server.accept ();
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throw new RuntimeException ("accept should not have returned");
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} catch (SocketTimeoutException e) {}
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t1 = System.currentTimeMillis() - t1;
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checkTime (t1, 5000);
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c1 = new Socket ();
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c1.connect (new InetSocketAddress (ia4addr, port), 1000);
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s1 = server.accept ();
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simpleDataExchange (c1,s1);
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c2 = new Socket ();
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c2.connect (new InetSocketAddress (ia6addr, port), 1000);
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s2 = server.accept ();
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simpleDataExchange (c2,s2);
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c3 = new Socket ();
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c3.connect (new InetSocketAddress (ia6addr, port), 1000);
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s3 = server.accept ();
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c2.close (); s2.close();
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server.close();
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simpleDataExchange (c3,s3);
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c1.close (); c2.close();
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s1.close (); s2.close();
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System.out.println ("Test3: OK");
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}
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/* Test: connect to IPv4 mapped address */
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static void test4 () throws Exception {
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server = new ServerSocket (0);
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int port = server.getLocalPort();
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/* create an IPv4 mapped address corresponding to local host */
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byte[] b = {0,0,0,0,0,0,0,0,0,0,(byte)0xff,(byte)0xff,0,0,0,0};
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byte[] ia4 = ia4addr.getAddress();
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b[12] = ia4[0];
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b[13] = ia4[1];
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b[14] = ia4[2];
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b[15] = ia4[3];
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InetAddress dest = InetAddress.getByAddress (b);
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c1 = new Socket (dest, port);
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s1 = server.accept ();
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simpleDataExchange (c1,s1);
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c1.close ();
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s1.close ();
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server.close ();
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System.out.println ("Test4: OK");
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}
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}
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