1/*
2 * Copyright (c) 2014, 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 8048194
27 * @modules java.base/sun.security.util
28 *          java.security.jgss/sun.security.jgss
29 *          java.security.jgss/sun.security.jgss.spnego:+open
30 * @run main/othervm NotPreferredMech
31 * @summary GSSContext.acceptSecContext fails when a supported mech is not initiator preferred
32 */
33
34import org.ietf.jgss.*;
35import sun.security.jgss.*;
36import sun.security.jgss.spnego.NegTokenInit;
37import sun.security.jgss.spnego.NegTokenTarg;
38import sun.security.util.BitArray;
39import sun.security.util.DerOutputStream;
40import sun.security.util.DerValue;
41import sun.security.util.ObjectIdentifier;
42
43import java.io.ByteArrayOutputStream;
44import java.lang.reflect.Constructor;
45import java.lang.reflect.Method;
46
47public class NotPreferredMech {
48
49    public static void main(String[] argv) throws Exception {
50
51        // Generates a NegTokenInit mechTypes field, with an
52        // unsupported mech as the preferred.
53        DerOutputStream mech = new DerOutputStream();
54        mech.write(new Oid("1.2.3.4").getDER());
55        mech.write(GSSUtil.GSS_KRB5_MECH_OID.getDER());
56        DerOutputStream mechTypeList = new DerOutputStream();
57        mechTypeList.write(DerValue.tag_Sequence, mech);
58
59        // Generates a NegTokenInit mechToken field for 1.2.3.4 mech
60        GSSHeader h1 = new GSSHeader(new ObjectIdentifier("1.2.3.4"), 1);
61        ByteArrayOutputStream bout = new ByteArrayOutputStream();
62        h1.encode(bout);
63        bout.write(new byte[1]);
64
65        // Generates the NegTokenInit token
66        Constructor<NegTokenInit> ctor = NegTokenInit.class.getDeclaredConstructor(
67                byte[].class, BitArray.class, byte[].class, byte[].class);
68        ctor.setAccessible(true);
69        NegTokenInit initToken = ctor.newInstance(
70                mechTypeList.toByteArray(),
71                new BitArray(0),
72                bout.toByteArray(),
73                null);
74        Method m = Class.forName("sun.security.jgss.spnego.SpNegoToken")
75                .getDeclaredMethod("getEncoded");
76        m.setAccessible(true);
77        byte[] spnegoToken = (byte[])m.invoke(initToken);
78
79        // and wraps it into a GSSToken
80        GSSHeader h = new GSSHeader(
81                new ObjectIdentifier(GSSUtil.GSS_SPNEGO_MECH_OID.toString()),
82                spnegoToken.length);
83        bout = new ByteArrayOutputStream();
84        h.encode(bout);
85        bout.write(spnegoToken);
86        byte[] token = bout.toByteArray();
87
88        // and feeds it to a GSS acceptor
89        GSSManager man = GSSManager.getInstance();
90        GSSContext ctxt = man.createContext((GSSCredential) null);
91        token = ctxt.acceptSecContext(token, 0, token.length);
92        NegTokenTarg targ = new NegTokenTarg(token);
93
94        // Make sure it's a GO-ON message
95        Method m2 = NegTokenTarg.class.getDeclaredMethod("getNegotiatedResult");
96        m2.setAccessible(true);
97        int negResult = (int)m2.invoke(targ);
98
99        if (negResult != 1 /* ACCEPT_INCOMPLETE */) {
100            throw new Exception("Not a continue");
101        }
102    }
103}
104