J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 3 | * |
| 4 | * This code is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of the GNU General Public License version 2 only, as |
| 6 | * published by the Free Software Foundation. Sun designates this |
| 7 | * particular file as subject to the "Classpath" exception as provided |
| 8 | * by Sun in the LICENSE file that accompanied this code. |
| 9 | * |
| 10 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 13 | * version 2 for more details (a copy is included in the LICENSE file that |
| 14 | * accompanied this code). |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License version |
| 17 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 18 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 19 | * |
| 20 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 21 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 22 | * have any questions. |
| 23 | */ |
| 24 | |
| 25 | /* |
| 26 | * |
| 27 | * (C) Copyright IBM Corp. 1999 All Rights Reserved. |
| 28 | * Copyright 1997 The Open Group Research Institute. All rights reserved. |
| 29 | */ |
| 30 | |
| 31 | package sun.security.krb5; |
| 32 | |
| 33 | import sun.security.krb5.internal.*; |
| 34 | |
| 35 | abstract class KrbAppMessage { |
| 36 | |
| 37 | private static boolean DEBUG = Krb5.DEBUG; |
| 38 | /** |
| 39 | * Common checks for KRB-PRIV and KRB-SAFE |
| 40 | */ |
| 41 | void check(KerberosTime packetTimestamp, |
| 42 | Integer packetUsec, |
| 43 | Integer packetSeqNumber, |
| 44 | HostAddress packetSAddress, |
| 45 | HostAddress packetRAddress, |
| 46 | SeqNumber seqNumber, |
| 47 | HostAddress sAddress, |
| 48 | HostAddress rAddress, |
| 49 | boolean timestampRequired, |
| 50 | boolean seqNumberRequired, |
| 51 | PrincipalName packetPrincipal, |
| 52 | Realm packetRealm) |
| 53 | throws KrbApErrException { |
| 54 | |
| 55 | if (!Krb5.AP_EMPTY_ADDRESSES_ALLOWED || sAddress != null) { |
| 56 | if (packetSAddress == null || sAddress == null || |
| 57 | !packetSAddress.equals(sAddress)) { |
| 58 | if (DEBUG && packetSAddress == null) { |
| 59 | System.out.println("packetSAddress is null"); |
| 60 | } |
| 61 | if (DEBUG && sAddress == null) { |
| 62 | System.out.println("sAddress is null"); |
| 63 | } |
| 64 | throw new KrbApErrException(Krb5.KRB_AP_ERR_BADADDR); |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | if (!Krb5.AP_EMPTY_ADDRESSES_ALLOWED || rAddress != null) { |
| 69 | if (packetRAddress == null || rAddress == null || |
| 70 | !packetRAddress.equals(rAddress)) |
| 71 | throw new KrbApErrException(Krb5.KRB_AP_ERR_BADADDR); |
| 72 | } |
| 73 | |
| 74 | if (packetTimestamp != null) { |
| 75 | packetTimestamp.setMicroSeconds(packetUsec); |
| 76 | if (!packetTimestamp.inClockSkew()) |
| 77 | throw new KrbApErrException(Krb5.KRB_AP_ERR_SKEW); |
| 78 | } else |
| 79 | if (timestampRequired) |
| 80 | throw new KrbApErrException(Krb5.KRB_AP_ERR_SKEW); |
| 81 | |
| 82 | // XXX check replay cache |
| 83 | // if (rcache.repeated(packetTimestamp, packetUsec, packetSAddress)) |
| 84 | // throw new KrbApErrException(Krb5.KRB_AP_ERR_REPEAT); |
| 85 | |
| 86 | // XXX consider moving up to api level |
| 87 | if (seqNumber == null && seqNumberRequired == true) |
| 88 | throw new KrbApErrException(Krb5.API_INVALID_ARG); |
| 89 | |
| 90 | if (packetSeqNumber != null && seqNumber != null) { |
| 91 | if (packetSeqNumber.intValue() != seqNumber.current()) |
| 92 | throw new KrbApErrException(Krb5.KRB_AP_ERR_BADORDER); |
| 93 | // should be done only when no more exceptions are possible |
| 94 | seqNumber.step(); |
| 95 | } else { |
| 96 | if (seqNumberRequired) { |
| 97 | throw new KrbApErrException(Krb5.KRB_AP_ERR_BADORDER); |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | // Must not be relaxed, per RFC 4120 |
| 102 | if (packetTimestamp == null && packetSeqNumber == null) |
| 103 | throw new KrbApErrException(Krb5.KRB_AP_ERR_MODIFIED); |
| 104 | |
| 105 | // XXX check replay cache |
| 106 | // rcache.save_identifier(packetTimestamp, packetUsec, packetSAddress, |
| 107 | // packetPrincipal, pcaketRealm); |
| 108 | } |
| 109 | |
| 110 | } |