1 /* 2 * Copyright (c) 2013, 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 /* 25 * @test 26 * @bug 8001326 27 * @run main/othervm ReplayCacheExpunge 16 28 * @run main/othervm/fail ReplayCacheExpunge 15 29 * @summary when number of expired entries minus number of good entries 30 * is more than 30, expunge occurs, and expired entries are forgotten. 31 */ 32 33 import java.util.Random; 34 import sun.security.krb5.internal.KerberosTime; 35 import sun.security.krb5.internal.ReplayCache; 36 import sun.security.krb5.internal.rcache.AuthTimeWithHash; 37 38 public class ReplayCacheExpunge { 39 static final String client = "dummy@REALM"; 40 static final String server = "server/localhost@REALM"; 41 static final Random rand = new Random(); 42 43 public static void main(String[] args) throws Exception { 44 // Make sure clockskew is default value 45 System.setProperty("java.security.krb5.conf", "nothing"); 46 47 int count = Integer.parseInt(args[0]); 48 ReplayCache cache = ReplayCache.getInstance("dfl:./"); 49 AuthTimeWithHash a1 = 50 new AuthTimeWithHash(client, server, time(-400), 0, hash("1")); 51 AuthTimeWithHash a2 = 52 new AuthTimeWithHash(client, server, time(0), 0, hash("4")); 53 KerberosTime now = new KerberosTime(time(0)*1000L); 54 KerberosTime then = new KerberosTime(time(-300)*1000L); 55 56 // Once upon a time, we added a lot of events 57 for (int i=0; i<count; i++) { 58 a1 = new AuthTimeWithHash(client, server, time(-400), 0, hash("")); 59 cache.checkAndStore(then, a1); 60 } 61 62 // Now, we add a new one. If some conditions hold, the old ones 63 // will be expunged. 64 cache.checkAndStore(now, a2); 65 66 // and adding an old one will not trigger any error 67 cache.checkAndStore(now, a1); 68 } 69 70 private static String hash(String s) { 71 char[] data = new char[16]; 72 for (int i=0; i<16; i++) { 73 if (i < s.length()) data[i] = s.charAt(i); 74 else data[i] = (char)('0' + rand.nextInt(10)); 75 } 76 return new String(data); 77 } 78 79 private static int time(int x) { 80 return (int)(System.currentTimeMillis()/1000) + x; 81 } 82 }