/*
* Copyright ( c ) 2012 , 2018 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
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*/
/*
* @ test
* @ bug 6355584 8194486
* @ summary Introduce constrained Kerberos delegation
* @ library / test / lib
* @ compile - XDignore . symbol . file S4U2proxyGSS . java
* @ run main jdk . test . lib . FileInstaller TestHosts TestHosts
* @ run main / othervm - Djdk . net . hosts . file = TestHosts
* - Djavax . security . auth . useSubjectCredsOnly = false S4U2proxyGSS krb5
* @ run main / othervm - Djdk . net . hosts . file = TestHosts
* - Djavax . security . auth . useSubjectCredsOnly = false S4U2proxyGSS spnego
*/
import java.io.File;
import java.io.FileOutputStream;
import java.security.Security;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.ietf.jgss.Oid;
import sun.security.jgss.GSSUtil;
public class S4U2proxyGSS {
public static void main(String[] args) throws Exception {
Oid mech;
if (args[0 ].equals("spnego" )) {
mech = GSSUtil.GSS_SPNEGO_MECH_OID;
} else if (args[0 ].contains("krb5" )) {
mech = GSSUtil.GSS_KRB5_MECH_OID;
} else {
throw new Exception("Unknown mech" );
}
OneKDC kdc = new OneKDC(null );
kdc.writeJAASConf();
kdc.setOption(KDC.Option.PREAUTH_REQUIRED, false );
Map<String,List<String>> map = new HashMap<>();
map.put(OneKDC.SERVER + "@" + OneKDC.REALM, Arrays.asList(
new String[]{OneKDC.SERVER + "@" + OneKDC.REALM}));
kdc.setOption(KDC.Option.ALLOW_S4U2PROXY, map);
Context c, s, b;
System.setProperty("javax.security.auth.useSubjectCredsOnly" , "false" );
System.setProperty("java.security.auth.login.config" , OneKDC.JAAS_CONF);
File f = new File(OneKDC.JAAS_CONF);
FileOutputStream fos = new FileOutputStream(f);
fos.write((
"com.sun.security.jgss.krb5.initiate {\n" +
" com.sun.security.auth.module.Krb5LoginModule required;\n};\n" +
"com.sun.security.jgss.krb5.accept {\n" +
" com.sun.security.auth.module.Krb5LoginModule required\n" +
" principal=\" " + OneKDC.SERVER + " \"\n" +
" useKeyTab=true\n" +
" storeKey=true;\n};\n"
).getBytes());
fos.close();
Security.setProperty("auth.login.defaultCallbackHandler" , "OneKDC$CallbackForClient" );
c = Context.fromThinAir();
s = Context.fromThinAir();
b = Context.fromThinAir();
c.startAsClient(OneKDC.SERVER, mech);
c.x().requestCredDeleg(false );
s.startAsServer(mech);
Context.handshake(c, s);
Context p = s.delegated();
p.startAsClient(OneKDC.SERVER, mech);
b.startAsServer(mech);
Context.handshake(p, b);
String n1 = p.x().getSrcName().toString().split("@" )[0 ];
String n2 = b.x().getSrcName().toString().split("@" )[0 ];
if (!n1.equals(OneKDC.USER) || !n2.equals(OneKDC.USER)) {
throw new Exception("Delegation failed" );
}
}
}
Messung V0.5 in Prozent C=92 H=91 G=91
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-10-11)
¤
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