1 /*
2 * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @bug 4469866
27 * @summary Connecting to a link-local IPv6 address should not
28 * causes a SocketException to be thrown.
29 * @library /test/lib
30 * @build jdk.test.lib.NetworkConfiguration
31 * jdk.test.lib.Utils
32 * jdk.test.lib.Asserts
33 * jdk.test.lib.JDKToolFinder
34 * jdk.test.lib.JDKToolLauncher
35 * jdk.test.lib.Platform
36 * jdk.test.lib.process.*
37 * @run main LinkLocal
38 */
39
40 import jdk.test.lib.NetworkConfiguration;
41
42 import java.net.*;
43 import java.util.List;
44 import java.util.stream.Collectors;
45
46 public class LinkLocal {
47
48 static int testCount = 0;
49 static int failed = 0;
50
51 static void TcpTest(InetAddress ia) throws Exception {
52 System.out.println("**************************************");
53 testCount++;
54 System.out.println("Test " + testCount + ": TCP connect to " + ia);
55
56 /*
57 * Create ServerSocket on wildcard address and then
58 * try to connect Socket to link-local address.
59 */
60 ServerSocket ss = new ServerSocket(0);
61
62 Socket s = new Socket();
63 try {
64 s.connect(new InetSocketAddress(ia, ss.getLocalPort()));
65
66 System.out.println("Test passed - connection established.");
67
68 // connection was established so accept it
69 Socket s2 = ss.accept();
70 s2.close();
71 } catch (SocketException e) {
72 failed++;
73 System.out.println("Test failed: " + e);
74 } finally {
75 s.close();
76 ss.close();
77 }
78 }
79
80 static void UdpTest(InetAddress ia, boolean connected) throws Exception {
81
82 System.out.println("**************************************");
83 testCount++;
84
85 if (connected) {
86 System.out.println("Test " + testCount + ": UDP connect to " + ia);
87 } else {
88 System.out.println("Test " + testCount + ": UDP send to " + ia);
89 }
90
91 DatagramSocket ds1 = new DatagramSocket();
92 DatagramSocket ds2 = new DatagramSocket();
93
94 try {
95 byte b[] = "Hello".getBytes();
96 DatagramPacket p = new DatagramPacket(b, b.length);
97
98 if (connected) {
99 ds1.connect( new InetSocketAddress(ia, ds2.getLocalPort()) );
100 System.out.println("DatagramSocket connected.");
101 } else {
102 p.setAddress(ia);
103 p.setPort(ds2.getLocalPort());
104 }
105 ds1.send(p);
106 System.out.println("Packet has been sent.");
107
108 ds2.setSoTimeout(5000);
109 ds2.receive(p);
110 System.out.println("Test passed - packet received.");
111 } catch (SocketException e) {
112 failed++;
113 System.out.println("Test failed: " + e);
114 } finally {
115 ds1.close();
116 ds2.close();
117 }
118 }
119
120 static void TestAddress(InetAddress ia) throws Exception {
121 TcpTest(ia);
122 UdpTest(ia, true); /* unconnected */
123 UdpTest(ia, false); /* connected */
124 }
125
126 public static void main(String args[]) throws Exception {
127
128 /*
129 * If an argument is provided ensure that it's
130 * a link-local IPv6 address.
131 */
132 if (args.length > 0) {
133 InetAddress ia = InetAddress.getByName(args[0]);
134
135 if ( !(ia instanceof Inet6Address) ||
136 !ia.isLinkLocalAddress()) {
137 throw new Exception(ia +
138 " is not a link-local IPv6 address");
139 }
140
141 TestAddress(ia);
142 }
143
144 /*
145 * If no argument is provided then enumerate the
146 * local addresses and run the test on each link-local
147 * IPv6 address.
148 */
149 if (args.length == 0) {
150 List<Inet6Address> addrs = NetworkConfiguration.probe()
151 .ip6Addresses()
152 .filter(Inet6Address::isLinkLocalAddress)
153 .collect(Collectors.toList());
154
155 for (Inet6Address addr : addrs) {
156 TestAddress(addr);
157 }
158 }
159
160 /*
161 * Print results
162 */
163 if (testCount == 0) {
164 System.out.println("No link-local IPv6 addresses - test skipped!");
165 } else {
166 System.out.println("**************************************");
167 System.out.println(testCount + " test(s) executed, " +
168 failed + " failed.");
169 if (failed > 0) {
170 throw new Exception( failed + " test(s) failed.");
171 }
172 }
173 }
174 }