117 lines
4.2 KiB
Java
117 lines
4.2 KiB
Java
/*
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* Copyright (c) 2007, 2019, 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 6521014 6543428
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* @summary IOException thrown when Socket tries to bind to an local IPv6 address on SuSE Linux
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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 B6521014
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*/
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import java.net.*;
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import java.io.*;
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import java.util.*;
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import jdk.test.lib.NetworkConfiguration;
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/*
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*
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* What this testcase is to test is a (weird) coupling through the
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* cached_scope_id field of java.net.Inet6Address. Native method
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* NET_InetAddressToSockaddr as in Linux platform will try to write
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* and read this field, therefore Inet6Address becomes 'stateful'.
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* So the coupling. Certain executive order, e.g. two methods use
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* the same Inet6Address instance as illustrated in this test case,
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* will show side effect of such coupling.
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*
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* And on Windows, NET_InetAddressToSockaddr() did not assign appropriate
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* sin6_scope_id value to sockaddr_in6 structure if there's no one coming
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* with Inet6Address instance, which caused bind exception. This test use
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* link-local address without %scope suffix, so it is also going to test
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* that.
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*
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*/
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public class B6521014 {
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static Inet6Address removeScope(Inet6Address addr) {
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try {
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return (Inet6Address)InetAddress.getByAddress(addr.getAddress());
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} catch (IOException e) {
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throw new UncheckedIOException(e);
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}
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}
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static Optional<Inet6Address> getLocalAddr() throws Exception {
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return NetworkConfiguration.probe()
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.ip6Addresses()
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.filter(Inet6Address::isLinkLocalAddress)
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.findFirst();
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}
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static void test1(Inet6Address sin) throws Exception {
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try (ServerSocket ssock = createBoundServer(sin);
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Socket sock = new Socket()) {
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int port = ssock.getLocalPort();
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sock.connect(new InetSocketAddress(sin, port), 100);
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} catch (SocketTimeoutException e) {
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// time out exception is okay
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System.out.println("timed out when connecting.");
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}
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}
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static void test2(Inet6Address sin) throws Exception {
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try (ServerSocket ssock = createBoundServer(sin);
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Socket sock = new Socket()) {
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int port = ssock.getLocalPort();
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ssock.setSoTimeout(100);
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sock.bind(new InetSocketAddress(sin, 0));
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sock.connect(new InetSocketAddress(sin, port), 100);
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} catch (SocketTimeoutException expected) {
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// time out exception is okay
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System.out.println("timed out when connecting.");
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}
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}
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static ServerSocket createBoundServer(Inet6Address sin) throws IOException {
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ServerSocket ss = new ServerSocket();
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InetSocketAddress address = new InetSocketAddress(sin, 0);
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ss.bind(address);
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return ss;
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}
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public static void main(String[] args) throws Exception {
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Optional<Inet6Address> oaddr = getLocalAddr();
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if (!oaddr.isPresent()) {
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System.out.println("Cannot find a link-local address.");
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return;
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}
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Inet6Address addr = oaddr.get();
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System.out.println("Using " + addr);
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test1(addr);
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test2(addr);
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}
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}
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