1 /* 2 * Copyright (c) 2015, 2018, 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 import java.io.File; 25 import java.io.FileWriter; 26 import java.io.IOException; 27 import java.io.PrintWriter; 28 import java.util.HashMap; 29 import java.util.Map; 30 import javax.security.auth.callback.CallbackHandler; 31 import javax.security.auth.login.LoginContext; 32 import javax.security.auth.login.LoginException; 33 34 /* 35 * @test 36 * @bug 4515853 8075297 8194486 37 * @summary Checks that Kerberos client tries slave KDC 38 * if master KDC is not responding 39 * @library /test/lib 40 * @run main jdk.test.lib.FileInstaller TestHosts TestHosts 41 * @run main/othervm -Djdk.net.hosts.file=TestHosts BogusKDC 42 */ 43 public class BogusKDC { 44 45 static final String TEST_SRC = System.getProperty("test.src", "."); 46 static final String HOST = "localhost"; 47 static final String NOT_EXISTING_HOST = "not.existing.host"; 48 static final String REALM = "TEST.REALM"; 49 static final String USER = "USER"; 50 static final String USER_PRINCIPAL = USER + "@" + REALM; 51 static final String USER_PASSWORD = "password"; 52 static final String KRBTGT_PRINCIPAL = "krbtgt/" + REALM; 53 static final String KRB5_CONF = "krb5.conf"; 54 static final int WRONG_KDC_PORT = 21; 55 56 static final String KRB5_CONF_TEMPLATE = "" 57 + "[libdefaults]\n" 58 + "default_realm = TEST.REALM\n" 59 + "max_retries = 1\n" 60 + "\n" 61 + "[realms]\n" 62 + "TEST.REALM = {\n" 63 + " kdc = %s\n" 64 + " kdc = localhost:%d\n" 65 + "}"; 66 main(String[] args)67 public static void main(String[] args) throws LoginException, IOException { 68 Map<String, String> principals = new HashMap<>(); 69 principals.put(USER_PRINCIPAL, USER_PASSWORD); 70 principals.put(KRBTGT_PRINCIPAL, null); 71 72 System.setProperty("java.security.krb5.conf", KRB5_CONF); 73 74 // start a local KDC 75 KDC kdc = KDC.startKDC(HOST, KRB5_CONF, REALM, principals, null, null); 76 77 System.setProperty("java.security.auth.login.config", 78 TEST_SRC + File.separator + "refreshKrb5Config.jaas"); 79 80 CallbackHandler handler = new Helper.UserPasswordHandler( 81 USER, USER_PASSWORD); 82 83 // create a krb5 config with non-existing host for master KDC, 84 // and wrong port for slave KDC 85 try (PrintWriter w = new PrintWriter(new FileWriter(KRB5_CONF))) { 86 w.write(String.format(KRB5_CONF_TEMPLATE, 87 KDC.NOT_EXISTING_HOST, WRONG_KDC_PORT)); 88 w.flush(); 89 } 90 91 // login with not-refreshable config 92 try { 93 new LoginContext("NotRefreshable", handler).login(); 94 throw new RuntimeException("Expected exception not thrown"); 95 } catch (LoginException le) { 96 System.out.println("Expected login failure: " + le); 97 } 98 99 // create a krb5 config with non-existing host for master KDC, 100 // but correct port for slave KDC 101 try (PrintWriter w = new PrintWriter(new FileWriter(KRB5_CONF))) { 102 w.write(String.format(KRB5_CONF_TEMPLATE, 103 KDC.NOT_EXISTING_HOST, kdc.getPort())); 104 w.flush(); 105 } 106 107 // login with not-refreshable config 108 try { 109 new LoginContext("NotRefreshable", handler).login(); 110 throw new RuntimeException("Expected exception not thrown"); 111 } catch (LoginException le) { 112 System.out.println("Expected login failure: " + le); 113 } 114 115 // login with refreshable config 116 new LoginContext("Refreshable", handler).login(); 117 118 System.out.println("Test passed"); 119 } 120 } 121