private Krb5InitCredential(
Krb5NameElement name,
byte[] asn1Encoding,
KerberosPrincipal client,
KerberosPrincipal server,
byte[] sessionKey,
int keyType,
boolean[] flags,
Date authTime,
Date startTime,
Date endTime,
Date renewTill,
InetAddress[] clientAddresses)
throws GSSException {
super(
asn1Encoding,
client,
server,
sessionKey,
keyType,
flags,
authTime,
startTime,
endTime,
renewTill,
clientAddresses);
this.name = name;
try {
// Cache this for later use by the sun.security.krb5 package.
krb5Credentials =
new Credentials(
asn1Encoding,
client.getName(),
server.getName(),
sessionKey,
keyType,
flags,
authTime,
startTime,
endTime,
renewTill,
clientAddresses);
} catch (KrbException e) {
throw new GSSException(GSSException.NO_CRED, -1, e.getMessage());
} catch (IOException e) {
throw new GSSException(GSSException.NO_CRED, -1, e.getMessage());
}
}
private static KerberosTicket getTgt(int caller, Krb5NameElement name, int initLifetime)
throws GSSException {
String realm = null;
final String clientPrincipal, tgsPrincipal = null;
/*
* Find the TGT for the realm that the client is in. If the client
* name is not available, then use the default realm.
*/
if (name != null) {
clientPrincipal = (name.getKrb5PrincipalName()).getName();
realm = (name.getKrb5PrincipalName()).getRealmAsString();
} else {
clientPrincipal = null;
try {
Config config = Config.getInstance();
realm = config.getDefaultRealm();
} catch (KrbException e) {
GSSException ge =
new GSSException(
GSSException.NO_CRED,
-1,
"Attempt to obtain INITIATE credentials failed!" + " (" + e.getMessage() + ")");
ge.initCause(e);
throw ge;
}
}
final AccessControlContext acc = AccessController.getContext();
try {
final int realCaller = (caller == GSSUtil.CALLER_UNKNOWN) ? GSSUtil.CALLER_INITIATE : caller;
return AccessController.doPrivileged(
new PrivilegedExceptionAction<KerberosTicket>() {
public KerberosTicket run() throws Exception {
return Krb5Util.getTicket(realCaller, clientPrincipal, tgsPrincipal, acc);
}
});
} catch (PrivilegedActionException e) {
GSSException ge =
new GSSException(
GSSException.NO_CRED,
-1,
"Attempt to obtain new INITIATE credentials failed!" + " (" + e.getMessage() + ")");
ge.initCause(e.getException());
throw ge;
}
}