1 /* 2 * Copyright (c) 2011, 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 sun.security.krb5; 27 28 import java.io.IOException; 29 import java.util.Collection; 30 import java.util.Hashtable; 31 import java.util.Vector; 32 33 34 public class SCDynamicStoreConfig { 35 private static native void installNotificationCallback(); 36 private static native Hashtable<String, Object> getKerberosConfig(); 37 38 static { 39 java.security.AccessController.doPrivileged( 40 new java.security.PrivilegedAction<Void>() { 41 public Void run() { 42 System.loadLibrary("osx"); 43 return null; 44 } 45 }); 46 installNotificationCallback(); 47 } 48 49 private static Vector<String> unwrapHost(Collection<Hashtable<String, String>> c) { 50 Vector<String> vector = new Vector<String>(); 51 for (Hashtable<String, String> m : c) { 52 vector.add(m.get("host")); 53 } 54 return vector; 55 } 56 57 /** 58 * convertRealmConfigs: Maps the Object graph that we get from JNI to the 59 * object graph that Config expects. Also the items inside the kdc array 60 * are wrapped inside Hashtables 61 */ 62 @SuppressWarnings("unchecked") 63 private static Hashtable<String, Object> convertRealmConfigs(Hashtable<String, ?> configs) { 64 Hashtable<String, Object> realmsTable = new Hashtable<String, Object>(); 65 66 for (String realm : configs.keySet()) { 67 // get the kdc 68 Hashtable<String, Collection<?>> map = (Hashtable<String, Collection<?>>) configs.get(realm); 69 Collection<Hashtable<String, String>> kdc = (Collection<Hashtable<String, String>>) map.get("kdc"); 70 71 // put the kdc into the realmMap 72 Hashtable<String, Vector<String>> realmMap = new Hashtable<String, Vector<String>>(); 73 if (kdc != null) realmMap.put("kdc", unwrapHost(kdc)); 74 75 // put the admin server into the realmMap 76 Collection<Hashtable<String, String>> kadmin = (Collection<Hashtable<String, String>>) map.get("kadmin"); 77 if (kadmin != null) realmMap.put("admin_server", unwrapHost(kadmin)); 78 79 // add the full entry to the realmTable 80 realmsTable.put(realm, realmMap); 81 } 82 83 return realmsTable; 84 } 85 86 /** 87 * Calls down to JNI to get the raw Kerberos Config and maps the object 88 * graph to the one that Kerberos Config in Java expects 89 * 90 * @return 91 * @throws IOException 92 */ 93 @SuppressWarnings("unchecked") 94 public static Hashtable<String, Object> getConfig() throws IOException { 95 Hashtable<String, Object> stanzaTable = getKerberosConfig(); 96 if (stanzaTable == null) { 97 throw new IOException("Could not load configuration from SCDynamicStore"); 98 } 99 //System.out.println("Raw map from JNI: " + stanzaTable); 100 101 // convert SCDynamicStore realm structure to Java realm structure 102 Hashtable<String, ?> realms = (Hashtable<String, ?>) stanzaTable.get("realms"); 103 if (realms != null) { 104 stanzaTable.remove("realms"); 105 Hashtable<String, Object> realmsTable = convertRealmConfigs(realms); 106 stanzaTable.put("realms", realmsTable); 107 } 108 109 // System.out.println("stanzaTable : " + stanzaTable); 110 return stanzaTable; 111 } 112 }