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
30 * @run main/othervm NotPreferredMech
31 * @summary GSSContext.acceptSecContext fails when a supported mech is not initiator preferred
32 */
33
34 import org.ietf.jgss.*;
35 import sun.security.jgss.*;
36 import sun.security.jgss.spnego.NegTokenInit;
37 import sun.security.jgss.spnego.NegTokenTarg;
38 import sun.security.util.BitArray;
39 import sun.security.util.DerOutputStream;
40 import sun.security.util.DerValue;
41 import sun.security.util.ObjectIdentifier;
42
43 import java.io.ByteArrayOutputStream;
44 import java.lang.reflect.Constructor;
45 import java.lang.reflect.Method;
46
47 public 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 }