1/* 2 * Copyright (c) 2005, 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 */ 25package sun.security.jgss.wrapper; 26 27import org.ietf.jgss.*; 28import javax.security.auth.kerberos.ServicePermission; 29 30/** 31 * This class is an utility class for Kerberos related stuff. 32 * @author Valerie Peng 33 * @since 1.6 34 */ 35class Krb5Util { 36 37 // Return the Kerberos TGS principal name using the domain 38 // of the specified <code>name</code> 39 static String getTGSName(GSSNameElement name) 40 throws GSSException { 41 String krbPrinc = name.getKrbName(); 42 int atIndex = krbPrinc.indexOf('@'); 43 String realm = krbPrinc.substring(atIndex + 1); 44 StringBuilder sb = new StringBuilder("krbtgt/"); 45 sb.append(realm).append('@').append(realm); 46 return sb.toString(); 47 } 48 49 // Perform the Service Permission check using the specified 50 // <code>target</code> and <code>action</code> 51 static void checkServicePermission(String target, String action) { 52 SecurityManager sm = System.getSecurityManager(); 53 if (sm != null) { 54 SunNativeProvider.debug("Checking ServicePermission(" + 55 target + ", " + action + ")"); 56 ServicePermission perm = 57 new ServicePermission(target, action); 58 sm.checkPermission(perm); 59 } 60 } 61} 62