1 /*
   2  * Copyright (c) 2012, 2013, 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.security.jgss;
  27 
  28 import org.ietf.jgss.*;
  29 import sun.security.jgss.GSSCredentialImpl;
  30 
  31 /**
  32  * The extended GSSCredential interface for supporting additional
  33  * functionalities not defined by {@code org.ietf.jgss.GSSCredential}.
  34  * @since 1.8
  35  */
  36 public interface ExtendedGSSCredential extends GSSCredential {
  37 
  38     static class ExtendedGSSCredentialImpl extends GSSCredentialImpl
  39             implements ExtendedGSSCredential {
  40 
  41         public ExtendedGSSCredentialImpl(GSSCredentialImpl old) {
  42             super(old);
  43         }
  44     }
  45 
  46     /**
  47      * Impersonates a principal. In Kerberos, this can be implemented
  48      * using the Microsoft S4U2self extension.
  49      * <p>
  50      * A {@link GSSException#NO_CRED GSSException.NO_CRED} will be thrown if the
  51      * impersonation fails. A {@link GSSException#FAILURE GSSException.FAILURE}
  52      * will be  thrown if the impersonation method is not available to this
  53      * credential object.
  54      * @param name the name of the principal to impersonate
  55      * @return a credential for that principal
  56      * @throws GSSException  containing the following
  57      * major error codes:
  58      *   {@link GSSException#NO_CRED GSSException.NO_CRED}
  59      *   {@link GSSException#FAILURE GSSException.FAILURE}
  60      */
  61     public GSSCredential impersonate(GSSName name) throws GSSException;
  62 }