1/*
2 * Copyright (c) 2012, 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 6355584
27 * @summary Introduce constrained Kerberos delegation
28 * @compile -XDignore.symbol.file S4U2proxyGSS.java
29 * @run main/othervm -Djavax.security.auth.useSubjectCredsOnly=false S4U2proxyGSS krb5
30 * @run main/othervm -Djavax.security.auth.useSubjectCredsOnly=false S4U2proxyGSS spnego
31 */
32
33import java.io.File;
34import java.io.FileOutputStream;
35import java.security.Security;
36import java.util.Arrays;
37import java.util.HashMap;
38import java.util.List;
39import java.util.Map;
40import org.ietf.jgss.Oid;
41import sun.security.jgss.GSSUtil;
42
43public class S4U2proxyGSS {
44
45    public static void main(String[] args) throws Exception {
46        Oid mech;
47        if (args[0].equals("spnego")) {
48            mech = GSSUtil.GSS_SPNEGO_MECH_OID;
49        } else if (args[0].contains("krb5")) {
50            mech = GSSUtil.GSS_KRB5_MECH_OID;
51        } else {
52            throw new Exception("Unknown mech");
53        }
54
55        OneKDC kdc = new OneKDC(null);
56        kdc.writeJAASConf();
57        kdc.setOption(KDC.Option.PREAUTH_REQUIRED, false);
58        Map<String,List<String>> map = new HashMap<>();
59        map.put(OneKDC.SERVER + "@" + OneKDC.REALM, Arrays.asList(
60                new String[]{OneKDC.SERVER + "@" + OneKDC.REALM}));
61        kdc.setOption(KDC.Option.ALLOW_S4U2PROXY, map);
62
63        Context c, s, b;
64        System.setProperty("javax.security.auth.useSubjectCredsOnly", "false");
65        System.setProperty("java.security.auth.login.config", OneKDC.JAAS_CONF);
66        File f = new File(OneKDC.JAAS_CONF);
67        FileOutputStream fos = new FileOutputStream(f);
68        fos.write((
69                "com.sun.security.jgss.krb5.initiate {\n" +
70                "    com.sun.security.auth.module.Krb5LoginModule required;\n};\n" +
71                "com.sun.security.jgss.krb5.accept {\n" +
72                "    com.sun.security.auth.module.Krb5LoginModule required\n" +
73                "    principal=\"" + OneKDC.SERVER + "\"\n" +
74                "    useKeyTab=true\n" +
75                "    storeKey=true;\n};\n"
76                ).getBytes());
77        fos.close();
78        Security.setProperty("auth.login.defaultCallbackHandler", "OneKDC$CallbackForClient");
79        c = Context.fromThinAir();
80        s = Context.fromThinAir();
81        b = Context.fromThinAir();
82        c.startAsClient(OneKDC.SERVER, mech);
83        c.x().requestCredDeleg(false);
84        s.startAsServer(mech);
85
86        Context.handshake(c, s);
87        Context p = s.delegated();
88        p.startAsClient(OneKDC.SERVER, mech);
89        b.startAsServer(mech);
90        Context.handshake(p, b);
91
92        String n1 = p.x().getSrcName().toString().split("@")[0];
93        String n2 = b.x().getSrcName().toString().split("@")[0];
94        if (!n1.equals(OneKDC.USER) || !n2.equals(OneKDC.USER)) {
95            throw new Exception("Delegation failed");
96        }
97    }
98}
99