author | avstepan |
Fri, 31 Jul 2015 15:07:18 +0300 | |
changeset 32003 | acb12269398a |
parent 25859 | 3317bb8137f4 |
permissions | -rw-r--r-- |
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/* |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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/* |
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* |
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* (C) Copyright IBM Corp. 1999 All Rights Reserved. |
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* Copyright 1997 The Open Group Research Institute. All rights reserved. |
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*/ |
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package sun.security.krb5.internal; |
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import sun.security.krb5.Config; |
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import sun.security.krb5.KrbException; |
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import sun.security.krb5.Asn1Exception; |
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import sun.security.krb5.internal.util.KerberosFlags; |
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import sun.security.util.*; |
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import java.io.IOException; |
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/** |
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* Implements the ASN.1 KDCOptions type. |
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* |
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* <pre>{@code |
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* KDCOptions ::= KerberosFlags |
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* -- reserved(0), |
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* -- forwardable(1), |
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* -- forwarded(2), |
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* -- proxiable(3), |
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* -- proxy(4), |
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* -- allow-postdate(5), |
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* -- postdated(6), |
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* -- unused7(7), |
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* -- renewable(8), |
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* -- unused9(9), |
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* -- unused10(10), |
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* -- opt-hardware-auth(11), |
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* -- unused12(12), |
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* -- unused13(13), |
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* -- 15 is reserved for canonicalize |
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* -- unused15(15), |
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* -- 26 was unused in 1510 |
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* -- disable-transited-check(26), |
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* -- renewable-ok(27), |
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* -- enc-tkt-in-skey(28), |
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* -- renew(30), |
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* -- validate(31) |
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* |
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* KerberosFlags ::= BIT STRING (SIZE (32..MAX)) |
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* -- minimum number of bits shall be sent, |
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* -- but no fewer than 32 |
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* |
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* }</pre> |
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* |
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* <p> |
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* This definition reflects the Network Working Group RFC 4120 |
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* specification available at |
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* <a href="http://www.ietf.org/rfc/rfc4120.txt"> |
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* http://www.ietf.org/rfc/rfc4120.txt</a>. |
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* |
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* <p> |
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* This class appears as data field in the initial request(KRB_AS_REQ) |
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* or subsequent request(KRB_TGS_REQ) to the KDC and indicates the flags |
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* that the client wants to set on the tickets. |
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* |
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* The optional bits are: |
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* <UL> |
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* <LI>KDCOptions.RESERVED |
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* <LI>KDCOptions.FORWARDABLE |
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* <LI>KDCOptions.FORWARDED |
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* <LI>KDCOptions.PROXIABLE |
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* <LI>KDCOptions.PROXY |
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* <LI>KDCOptions.ALLOW_POSTDATE |
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* <LI>KDCOptions.POSTDATED |
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* <LI>KDCOptions.RENEWABLE |
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* <LI>KDCOptions.RENEWABLE_OK |
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* <LI>KDCOptions.ENC_TKT_IN_SKEY |
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* <LI>KDCOptions.RENEW |
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* <LI>KDCOptions.VALIDATE |
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* </UL> |
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* <p> Various checks must be made before honoring an option. The restrictions |
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* on the use of some options are as follows: |
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* <ol> |
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* <li> FORWARDABLE, FORWARDED, PROXIABLE, RENEWABLE options may be set in |
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* subsequent request only if the ticket_granting ticket on which it is based has |
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* the same options (FORWARDABLE, FORWARDED, PROXIABLE, RENEWABLE) set. |
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* <li> ALLOW_POSTDATE may be set in subsequent request only if the |
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* ticket-granting ticket on which it is based also has its MAY_POSTDATE flag set. |
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* <li> POSTDATED may be set in subsequent request only if the |
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* ticket-granting ticket on which it is based also has its MAY_POSTDATE flag set. |
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* <li> RENEWABLE or RENEW may be set in subsequent request only if the |
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* ticket-granting ticket on which it is based also has its RENEWABLE flag set. |
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* <li> POXY may be set in subsequent request only if the ticket-granting ticket |
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* on which it is based also has its PROXIABLE flag set, and the address(es) of |
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* the host from which the resulting ticket is to be valid should be included |
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* in the addresses field of the request. |
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* <li>FORWARDED, PROXY, ENC_TKT_IN_SKEY, RENEW, VALIDATE are used only in |
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* subsequent requests. |
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* </ol> |
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*/ |
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public class KDCOptions extends KerberosFlags { |
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private static final int KDC_OPT_PROXIABLE = 0x10000000; |
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private static final int KDC_OPT_RENEWABLE_OK = 0x00000010; |
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private static final int KDC_OPT_FORWARDABLE = 0x40000000; |
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// KDC Options |
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public static final int RESERVED = 0; |
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public static final int FORWARDABLE = 1; |
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public static final int FORWARDED = 2; |
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public static final int PROXIABLE = 3; |
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public static final int PROXY = 4; |
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public static final int ALLOW_POSTDATE = 5; |
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public static final int POSTDATED = 6; |
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public static final int UNUSED7 = 7; |
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public static final int RENEWABLE = 8; |
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public static final int UNUSED9 = 9; |
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public static final int UNUSED10 = 10; |
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public static final int UNUSED11 = 11; |
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public static final int CNAME_IN_ADDL_TKT = 14; |
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public static final int RENEWABLE_OK = 27; |
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public static final int ENC_TKT_IN_SKEY = 28; |
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public static final int RENEW = 30; |
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public static final int VALIDATE = 31; |
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private static final String[] names = { |
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"RESERVED", //0 |
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"FORWARDABLE", //1; |
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"FORWARDED", //2; |
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"PROXIABLE", //3; |
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"PROXY", //4; |
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"ALLOW_POSTDATE", //5; |
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"POSTDATED", //6; |
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"UNUSED7", //7; |
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"RENEWABLE", //8; |
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"UNUSED9", //9; |
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"UNUSED10", //10; |
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"UNUSED11", //11; |
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null,null, |
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"CNAME_IN_ADDL_TKT",//14; |
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null,null,null,null,null,null,null,null,null,null,null,null, |
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"RENEWABLE_OK", //27; |
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"ENC_TKT_IN_SKEY", //28; |
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null, |
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"RENEW", //30; |
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"VALIDATE", //31; |
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}; |
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private boolean DEBUG = Krb5.DEBUG; |
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public static KDCOptions with(int... flags) { |
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KDCOptions options = new KDCOptions(); |
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for (int flag: flags) { |
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options.set(flag, true); |
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} |
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return options; |
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} |
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public KDCOptions() { |
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super(Krb5.KDC_OPTS_MAX + 1); |
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setDefault(); |
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} |
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public KDCOptions(int size, byte[] data) throws Asn1Exception { |
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super(size, data); |
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if ((size > data.length * BITS_PER_UNIT) || (size > Krb5.KDC_OPTS_MAX + 1)) |
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throw new Asn1Exception(Krb5.BITSTRING_BAD_LENGTH); |
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} |
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/** |
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* Constructs a KDCOptions from the specified bit settings. |
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* |
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* @param data the bits to be set for the KDCOptions. |
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* @exception Asn1Exception if an error occurs while decoding an ASN1 |
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* encoded data. |
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* |
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*/ |
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public KDCOptions(boolean[] data) throws Asn1Exception { |
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super(data); |
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if (data.length > Krb5.KDC_OPTS_MAX + 1) { |
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throw new Asn1Exception(Krb5.BITSTRING_BAD_LENGTH); |
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} |
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} |
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public KDCOptions(DerValue encoding) throws Asn1Exception, IOException { |
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this(encoding.getUnalignedBitString(true).toBooleanArray()); |
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} |
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/** |
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* Constructs a KDCOptions from the passed bit settings. |
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* |
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* @param options the bits to be set for the KDCOptions. |
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* |
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*/ |
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public KDCOptions(byte[] options) { |
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super(options.length * BITS_PER_UNIT, options); |
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} |
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/** |
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* Parse (unmarshal) a KDCOptions from a DER input stream. This form |
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* parsing might be used when expanding a value which is part of |
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* a constructed sequence and uses explicitly tagged type. |
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* |
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* @param data the Der input stream value, which contains one or more |
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* marshaled value. |
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* @param explicitTag tag number. |
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* @param optional indicate if this data field is optional |
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* @return an instance of KDCOptions. |
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* @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data. |
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* @exception IOException if an I/O error occurs while reading encoded data. |
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* |
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*/ |
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236 |
public static KDCOptions parse(DerInputStream data, byte explicitTag, boolean optional) throws Asn1Exception, IOException { |
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if ((optional) && (((byte)data.peekByte() & (byte)0x1F) != explicitTag)) |
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return null; |
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DerValue der = data.getDerValue(); |
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240 |
if (explicitTag != (der.getTag() & (byte)0x1F)) { |
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241 |
throw new Asn1Exception(Krb5.ASN1_BAD_ID); |
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242 |
} else { |
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243 |
DerValue subDer = der.getData().getDerValue(); |
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return new KDCOptions(subDer); |
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} |
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} |
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247 |
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/** |
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249 |
* Sets the value(true/false) for one of the <code>KDCOptions</code>. |
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250 |
* |
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251 |
* @param option an option bit. |
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* @param value true if the option is selected, false if the option is not selected. |
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253 |
* @exception ArrayIndexOutOfBoundsException if array index out of bound occurs. |
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254 |
* @see sun.security.krb5.internal.Krb5 |
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255 |
*/ |
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256 |
public void set(int option, boolean value) throws ArrayIndexOutOfBoundsException { |
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257 |
super.set(option, value); |
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258 |
} |
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259 |
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260 |
/** |
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261 |
* Gets the value(true/false) for one of the <code>KDCOptions</code>. |
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262 |
* |
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263 |
* @param option an option bit. |
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* @return value true if the option is selected, false if the option is not selected. |
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265 |
* @exception ArrayIndexOutOfBoundsException if array index out of bound occurs. |
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266 |
* @see sun.security.krb5.internal.Krb5 |
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267 |
*/ |
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268 |
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269 |
public boolean get(int option) throws ArrayIndexOutOfBoundsException { |
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270 |
return super.get(option); |
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} |
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@Override public String toString() { |
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StringBuilder sb = new StringBuilder(); |
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sb.append("KDCOptions: "); |
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for (int i=0; i<Krb5.KDC_OPTS_MAX+1; i++) { |
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if (get(i)) { |
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if (names[i] != null) { |
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sb.append(names[i]).append(","); |
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} else { |
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sb.append(i).append(","); |
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} |
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} |
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} |
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return sb.toString(); |
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} |
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288 |
private void setDefault() { |
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289 |
try { |
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290 |
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291 |
Config config = Config.getInstance(); |
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// If key not present, returns Integer.MIN_VALUE, which is |
294 |
// almost all zero. |
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int options = config.getIntValue("libdefaults", |
297 |
"kdc_default_options"); |
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if ((options & KDC_OPT_RENEWABLE_OK) == KDC_OPT_RENEWABLE_OK) { |
2 | 300 |
set(RENEWABLE_OK, true); |
301 |
} else { |
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if (config.getBooleanObject("libdefaults", "renewable") == Boolean.TRUE) { |
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set(RENEWABLE_OK, true); |
304 |
} |
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305 |
} |
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if ((options & KDC_OPT_PROXIABLE) == KDC_OPT_PROXIABLE) { |
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set(PROXIABLE, true); |
308 |
} else { |
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if (config.getBooleanObject("libdefaults", "proxiable") == Boolean.TRUE) { |
2 | 310 |
set(PROXIABLE, true); |
311 |
} |
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312 |
} |
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314 |
if ((options & KDC_OPT_FORWARDABLE) == KDC_OPT_FORWARDABLE) { |
2 | 315 |
set(FORWARDABLE, true); |
316 |
} else { |
|
23716
33cc4db6209b
8029995: accept yes/no for boolean krb5.conf settings
weijun
parents:
14413
diff
changeset
|
317 |
if (config.getBooleanObject("libdefaults", "forwardable") == Boolean.TRUE) { |
2 | 318 |
set(FORWARDABLE, true); |
319 |
} |
|
320 |
} |
|
321 |
} catch (KrbException e) { |
|
322 |
if (DEBUG) { |
|
323 |
System.out.println("Exception in getting default values for " + |
|
324 |
"KDC Options from the configuration "); |
|
325 |
e.printStackTrace(); |
|
326 |
||
327 |
} |
|
328 |
} |
|
329 |
} |
|
330 |
} |