1/*
2 * Copyright (c) 2015, 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// SunJSSE does not support dynamic system properties, no way to re-use
25// system properties in samevm/agentvm mode.
26
27/*
28 * @test
29 * @bug 8043758
30 * @summary Datagram Transport Layer Security (DTLS)
31 * @modules java.base/sun.security.util
32 * @build DTLSOverDatagram
33 * @run main/othervm InvalidRecords
34 */
35
36import java.net.DatagramPacket;
37import java.net.SocketAddress;
38
39/**
40 * Test that if handshake messages are crasged, the handshake would fail
41 * because of handshaking hash verification.
42 */
43public class InvalidRecords extends DTLSOverDatagram {
44    boolean needInvalidRecords = true;
45
46    public static void main(String[] args) throws Exception {
47        InvalidRecords testCase = new InvalidRecords();
48        testCase.runTest(testCase);
49    }
50
51    @Override
52    public boolean isGoodJob() {
53        return false;
54    }
55
56    @Override
57    DatagramPacket createHandshakePacket(byte[] ba, SocketAddress socketAddr) {
58        if (needInvalidRecords && (ba.length >= 60) &&
59                (ba[0x00] == (byte)0x16) && (ba[0x0D] == (byte)0x01) &&
60                (ba[0x3B] == (byte)0x00) && (ba[0x3C] > 0)) {
61
62            // ba[0x00]: record type
63            // ba[0x0D]: handshake type
64            // ba[0x3B]: length of session ID
65            // ba[0x3C]: length of cookie
66
67            // ClientHello with cookie
68            needInvalidRecords = false;
69            System.out.println("invalidate ClientHello message");
70            if (ba[ba.length - 1] == (byte)0xFF) {
71                ba[ba.length - 1] = (byte)0xFE;
72            } else {
73                ba[ba.length - 1] = (byte)0xFF;
74            }
75        }
76
77        return super.createHandshakePacket(ba, socketAddr);
78    }
79}
80