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 8044215 27 * @summary Introduce constrained Kerberos delegation 28 * @compile -XDignore.symbol.file S4U2proxy.java 29 * @run main/othervm S4U2proxy krb5 30 * @run main/othervm S4U2proxy spnego 31 */ 32 33 import java.util.Arrays; 34 import java.util.HashMap; 35 import java.util.List; 36 import java.util.Map; 37 import org.ietf.jgss.Oid; 38 import sun.security.jgss.GSSUtil; 39 40 public class S4U2proxy { 41 42 public static void main(String[] args) throws Exception { 43 Oid mech; 44 if (args[0].equals("spnego")) { 45 mech = GSSUtil.GSS_SPNEGO_MECH_OID; 46 } else if (args[0].contains("krb5")) { 47 mech = GSSUtil.GSS_KRB5_MECH_OID; 48 } else { 49 throw new Exception("Unknown mech"); 50 } 51 52 OneKDC kdc = new OneKDC(null); 53 kdc.writeJAASConf(); 54 kdc.setOption(KDC.Option.PREAUTH_REQUIRED, false); 55 Map<String,List<String>> map = new HashMap<>(); 56 map.put(OneKDC.SERVER + "@" + OneKDC.REALM, Arrays.asList( 57 new String[]{OneKDC.BACKEND + "@" + OneKDC.REALM})); 58 kdc.setOption(KDC.Option.ALLOW_S4U2PROXY, map); 59 60 Context c, s, b; 61 c = Context.fromJAAS("client"); 62 s = Context.fromJAAS("server"); 63 b = Context.fromJAAS("backend"); 64 65 c.startAsClient(OneKDC.SERVER, mech); 66 s.startAsServer(null, mech, false); 67 68 Context.handshake(c, s); 69 Context p = s.delegated(); 70 71 p.startAsClient(OneKDC.BACKEND, mech); 72 73 // 8044215: requestCredDeleg is useless and harmless 74 p.x().requestCredDeleg(true); 75 76 b.startAsServer(mech); 77 Context.handshake(p, b); 78 79 p.startAsClient(OneKDC.BACKEND, mech); 80 b.startAsServer(mech); 81 Context.handshake(p, b); 82 } 83 }