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