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* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
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/*
* @ test
* @ bug 7032354
* @ library / test / lib
* @ run main / othervm NoAddresses setup
* @ run main / othervm - Djdk . net . hosts . file = TestHosts NoAddresses 1
* @ run main / othervm - Djdk . net . hosts . file = TestHosts NoAddresses 2
* @ run main / othervm / fail - Djdk . net . hosts . file = TestHosts NoAddresses 3
* @ summary no - addresses should not be used on acceptor side
*/
import java.net.InetAddress;
import org.ietf.jgss.ChannelBinding;
import sun.security.jgss.GSSUtil;
import sun.security.krb5.Config;
import java.io.PrintWriter;
import java.io.FileWriter;
import java.io.BufferedWriter;
import java.nio.file.*;
public class NoAddresses {
public static void main(String[] args)
throws Exception {
if (args[0 ].equalsIgnoreCase("setup" )) {
// add a mapping of test host name to 127.0.0.1 to test's hosts file
InetAddress localHost = InetAddress.getLocalHost();
String localHostName = localHost.getHostName();
String hostsFileName = System.getProperty("test.src" , "." ) + "/TestHosts" ;
String hostsFileNameLocal = "TestHosts" ;
String loopBackAddress = "127.0.0.1" ;
Files.copy(Paths.get(hostsFileName), Paths.get(hostsFileNameLocal));
addMappingToHostsFile(localHostName, loopBackAddress, hostsFileNameLocal, true );
} else {
OneKDC kdc = new OneKDC(null );
kdc.writeJAASConf();
KDC.saveConfig(OneKDC.KRB5_CONF, kdc,
"noaddresses = false" ,
"default_keytab_name = " + OneKDC.KTAB);
Config.refresh();
Context c = Context.fromJAAS("client" );
Context s = Context.fromJAAS("server" );
c.startAsClient(OneKDC.SERVER, GSSUtil.GSS_KRB5_MECH_OID);
s.startAsServer(GSSUtil.GSS_KRB5_MECH_OID);
InetAddress initiator = InetAddress.getLocalHost();
InetAddress acceptor = InetAddress.getLocalHost();
switch (args[0 ]) {
case "1" :
// no initiator host address available, should be OK
break ;
case "2" :
// correct initiator host address, still fine
c.x().setChannelBinding(
new ChannelBinding(initiator, acceptor, null ));
s.x().setChannelBinding(
new ChannelBinding(initiator, acceptor, null ));
break ;
case "3" :
// incorrect initiator host address, fail
initiator = InetAddress.getByAddress(new byte []{1 ,1 ,1 ,1 });
c.x().setChannelBinding(
new ChannelBinding(initiator, acceptor, null ));
s.x().setChannelBinding(
new ChannelBinding(initiator, acceptor, null ));
break ;
}
Context.handshake(c, s);
}
}
private static void addMappingToHostsFile (String host,
String addr,
String hostsFileName,
boolean append)
throws Exception {
String mapping = addr + " " + host;
try (PrintWriter hfPWriter = new PrintWriter(new BufferedWriter(
new FileWriter(hostsFileName, append)))) {
hfPWriter.println(mapping);
}
}
}
Messung V0.5 in Prozent C=84 H=91 G=87
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-10)
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