1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * ident "%Z%%M% %I% %E% SMI" 24 * 25 * Copyright (c) 1999-2000 by Sun Microsystems, Inc. 26 * All rights reserved. 27 */ 28 29 // 30 // Class representing the info from /etc/krb5/krb5.conf. 31 // Currently, the admin tool only needs to access all of the 32 // admin servers for all of the realms enumerated in the file, 33 // and the default realm. 34 // A sample file looks like this: 35 36 /* 37 38 [libdefaults] 39 default_realm = SUNSOFT.FOO.SUN.COM 40 41 [realms] 42 GENESIS.FOO.SUN.COM = { 43 kdc = xxxxx.eng.sun.com 44 admin_server = xxxxx.eng.sun.com 45 } 46 SUNSOFT.FOO.SUN.COM = { 47 kdc = gandolf.eng.sun.com 48 kdc = ulong.eng.sun.com 49 admin_server = gandolf.eng.sun.com:749 50 } 51 52 [domain_realm] 53 .eng.sun.com = SUNSOFT.FOO.SUN.COM 54 .sun.com = SUNSOFT.FOO.SUN.COM 55 56 [logging] 57 default = FILE:/var/krb5/kdc.log 58 kdc = FILE:/var/krb5/kdc.log 59 60 [appdefaults] 61 gkadmin = { 62 help_url = http:... 63 } 64 */ 65 66 import java.io.*; 67 import java.util.Vector; 68 import java.util.StringTokenizer; 69 70 public class Krb5Conf { 71 72 private String DefRealm = null; 73 private String HelpURL = null; 74 private Vector RealmVector = new Vector(10, 10); 75 Krb5Conf()76 public Krb5Conf() { 77 78 FileReader fr = null; 79 80 try { 81 fr = new FileReader("/etc/krb5/krb5.conf"); 82 } catch (FileNotFoundException e) { 83 // System.out.println("Error: " + e); 84 return; 85 } 86 BufferedReader in = new BufferedReader(fr); 87 88 String line = null, Name = null, Server = "", Port = "0"; 89 boolean wantdef = false, wantrealm = false; 90 boolean wantadmin = false, skipcurly = false; 91 boolean wantapp = false, wanturl = false; 92 RealmInfo r = null; 93 94 // Read each line of the file 95 do { 96 try { 97 line = in.readLine(); 98 } catch (IOException e) { 99 // System.out.println("Error: " + e); 100 return; 101 } 102 if (line == null) 103 break; 104 // System.out.println(line); 105 106 // Get some help with parsing 107 StringTokenizer t = new StringTokenizer(line); 108 if (!t.hasMoreTokens()) 109 continue; 110 String s = t.nextToken(); 111 if (s.charAt(0) == '#') 112 continue; 113 114 // Look for [realm], [libdefaults] or [appdefaults] 115 if (s.charAt(0) == '[') { 116 wantdef = false; 117 wantrealm = false; 118 wantapp = false; 119 if (s.compareTo("[libdefaults]") == 0) 120 wantdef = true; 121 if (s.compareTo("[realms]") == 0) 122 wantrealm = true; 123 if (s.compareTo("[appdefaults]") == 0) 124 wantapp = true; 125 } else { 126 127 // Have we seen [libdefaults]? 128 if (wantdef && s.compareTo("default_realm") == 0) { 129 if (t.hasMoreTokens()) { 130 DefRealm = t.nextToken(" \t\n\r="); 131 wantdef = false; 132 } 133 134 // Have we seen [realm] instead? 135 } else if (wantrealm) { 136 137 // We got what we needed; skip until "{" is balanced 138 if (skipcurly && s.compareTo("}") == 0) { 139 skipcurly = false; 140 continue; 141 } 142 // First the realm name, then the admin server 143 if (!wantadmin) { 144 Name = new String(s); 145 wantadmin = true; 146 Server = ""; 147 Port = "0"; 148 } else { 149 if (s.compareTo("admin_server") == 0) { 150 s = t.nextToken(" \t\n\r=:"); 151 Server = new String(s); 152 if (t.hasMoreTokens()) { 153 s = t.nextToken(" \t\n\r=:"); 154 Port = new String(s); 155 } 156 157 // Store result in the vector 158 r = new RealmInfo(Name, Server, Port); 159 RealmVector.addElement(r); 160 wantadmin = false; 161 skipcurly = true; 162 } 163 } 164 } else if (wantapp) { 165 if (wanturl && s.compareTo("help_url") == 0) { 166 if (t.hasMoreTokens()) { 167 HelpURL = t.nextToken(" \t\n\r="); 168 wantapp = false; 169 wanturl = false; 170 } 171 } else if (s.compareTo("gkadmin") == 0) 172 wanturl = true; 173 } 174 } 175 } while (line != null); 176 } 177 getDefaultRealm()178 public String getDefaultRealm() { 179 return DefRealm; 180 } 181 getHelpURL()182 public String getHelpURL() { 183 return HelpURL; 184 } 185 getAllRealms()186 public String getAllRealms() { 187 String s = ""; 188 for (int i = 0; i < RealmVector.size(); i++) { 189 RealmInfo r = (RealmInfo)RealmVector.elementAt(i); 190 s = new String(s + " " + r.RealmName); 191 } 192 return s; 193 } 194 getRealmServer(String realm)195 public String getRealmServer(String realm) { 196 for (int i = 0; i < RealmVector.size(); i++) { 197 RealmInfo r = (RealmInfo)RealmVector.elementAt(i); 198 if (realm.compareTo(r.RealmName) == 0) 199 return r.AdminServer; 200 } 201 return null; 202 } 203 getRealmPort(String realm)204 public String getRealmPort(String realm) { 205 for (int i = 0; i < RealmVector.size(); i++) { 206 RealmInfo r = (RealmInfo)RealmVector.elementAt(i); 207 if (realm.compareTo(r.RealmName) == 0) 208 return r.ServerPort; 209 } 210 return null; 211 } 212 213 class RealmInfo extends Object { 214 String RealmName; 215 String AdminServer; 216 String ServerPort; 217 RealmInfo(String name, String server, String port)218 public RealmInfo(String name, String server, String port) { 219 RealmName = new String(name); 220 AdminServer = new String(server); 221 ServerPort = new String(port); 222 } 223 } 224 main(String[] args)225 public static void main(String[] args) { 226 Krb5Conf c = new Krb5Conf(); 227 System.out.println("Default: " + c.getDefaultRealm()); 228 System.out.println("Realms: " + c.getAllRealms()); 229 StringTokenizer t = new StringTokenizer(c.getAllRealms()); 230 while (t.hasMoreTokens()) { 231 String r = t.nextToken(); 232 String s = c.getRealmServer(r); 233 String p = c.getRealmPort(r); 234 System.out.println("For realm " + r + ", server is " + s 235 + ", port is " + p); 236 } 237 System.out.println("HelpURL: " + c.getHelpURL()); 238 } 239 } 240