| /* |
| * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| import java.io.*; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| import sun.security.krb5.Config; |
| |
| public class BadKdc { |
| |
| // Matches the krb5 debug output: |
| // >>> KDCCommunication: kdc=kdc.rabbit.hole UDP:14319, timeout=2000,... |
| // ^ kdc# ^ timeout |
| static final Pattern re = Pattern.compile( |
| ">>> KDCCommunication: kdc=kdc.rabbit.hole UDP:(\\d)...., " + |
| "timeout=(\\d)000,"); |
| public static void go(int[]... expected) |
| throws Exception { |
| System.setProperty("sun.security.krb5.debug", "true"); |
| |
| // Make sure KDCs' ports starts with 1 and 2 and 3, |
| // useful for checking debug output. |
| int p1 = 10000 + new java.util.Random().nextInt(10000); |
| int p2 = 20000 + new java.util.Random().nextInt(10000); |
| int p3 = 30000 + new java.util.Random().nextInt(10000); |
| |
| FileWriter fw = new FileWriter("alternative-krb5.conf"); |
| |
| fw.write("[libdefaults]\n" + |
| "default_realm = " + OneKDC.REALM + "\n" + |
| "kdc_timeout = 2000\n"); |
| fw.write("[realms]\n" + OneKDC.REALM + " = {\n" + |
| "kdc = " + OneKDC.KDCHOST + ":" + p1 + "\n" + |
| "kdc = " + OneKDC.KDCHOST + ":" + p2 + "\n" + |
| "kdc = " + OneKDC.KDCHOST + ":" + p3 + "\n" + |
| "}\n"); |
| |
| fw.close(); |
| System.setProperty("java.security.krb5.conf", "alternative-krb5.conf"); |
| Config.refresh(); |
| |
| // Turn on k3 only |
| KDC k3 = on(p3); |
| |
| test(expected[0]); |
| test(expected[1]); |
| Config.refresh(); |
| test(expected[2]); |
| |
| k3.terminate(); // shutdown k3 |
| on(p2); // k2 is on |
| test(expected[3]); |
| on(p1); // k1 and k2 is on |
| test(expected[4]); |
| } |
| |
| private static KDC on(int p) throws Exception { |
| KDC k = new KDC(OneKDC.REALM, OneKDC.KDCHOST, p, true); |
| k.addPrincipal(OneKDC.USER, OneKDC.PASS); |
| k.addPrincipalRandKey("krbtgt/" + OneKDC.REALM); |
| return k; |
| } |
| |
| /** |
| * One round of test for max_retries and timeout. |
| * @param timeout the expected timeout |
| * @param expected the expected kdc# timeout kdc# timeout... |
| */ |
| private static void test(int... expected) throws Exception { |
| ByteArrayOutputStream bo = new ByteArrayOutputStream(); |
| PrintStream oldout = System.out; |
| System.setOut(new PrintStream(bo)); |
| Context c = Context.fromUserPass(OneKDC.USER, OneKDC.PASS, false); |
| System.setOut(oldout); |
| |
| String[] lines = new String(bo.toByteArray()).split("\n"); |
| System.out.println("----------------- TEST -----------------"); |
| int count = 0; |
| for (String line: lines) { |
| Matcher m = re.matcher(line); |
| if (m.find()) { |
| System.out.println(line); |
| if (Integer.parseInt(m.group(1)) != expected[count++] || |
| Integer.parseInt(m.group(2)) != expected[count++]) { |
| throw new Exception("Fail here"); |
| } |
| } |
| } |
| if (count != expected.length) { |
| throw new Exception("Less rounds"); |
| } |
| } |
| } |