| /* |
| * 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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. |
| */ |
| |
| /* |
| * |
| * (C) Copyright IBM Corp. 1999 All Rights Reserved. |
| * Copyright 1997 The Open Group Research Institute. All rights reserved. |
| */ |
| |
| package sun.security.krb5.internal; |
| |
| import sun.security.krb5.Asn1Exception; |
| import sun.security.krb5.internal.util.KerberosFlags; |
| import sun.security.util.*; |
| import java.io.IOException; |
| |
| /** |
| * Implements the ASN.1 APOptions type. |
| * |
| * <xmp> |
| * APOptions ::= KerberosFlags |
| * -- reserved(0), |
| * -- use-session-key(1), |
| * -- mutual-required(2) |
| * </xmp> |
| * |
| * KerberosFlags ::= BIT STRING (SIZE (32..MAX)) |
| * -- minimum number of bits shall be sent, |
| * -- but no fewer than 32 |
| * |
| * <p> |
| * This definition reflects the Network Working Group RFC4120 |
| * specification available at |
| * <a href="http://www.ietf.org/rfc/rfc4120.txt"> |
| * http://www.ietf.org/rfc/rfc4120.txt</a>. |
| */ |
| |
| public class APOptions extends KerberosFlags { |
| public APOptions() { |
| super(Krb5.AP_OPTS_MAX + 1); |
| } |
| |
| public APOptions(int oneBit) throws Asn1Exception { |
| super(Krb5.AP_OPTS_MAX + 1); |
| set(oneBit, true); |
| } |
| public APOptions(int size, byte[] data) throws Asn1Exception { |
| super(size, data); |
| if ((size > data.length * BITS_PER_UNIT) || (size > Krb5.AP_OPTS_MAX + 1)) { |
| throw new Asn1Exception(Krb5.BITSTRING_BAD_LENGTH); |
| } |
| } |
| |
| public APOptions(boolean[] data) throws Asn1Exception { |
| super(data); |
| if (data.length > Krb5.AP_OPTS_MAX + 1) { |
| throw new Asn1Exception(Krb5.BITSTRING_BAD_LENGTH); |
| } |
| } |
| |
| public APOptions(DerValue encoding) throws IOException, Asn1Exception { |
| this(encoding.getUnalignedBitString(true).toBooleanArray()); |
| } |
| |
| /** |
| * Parse (unmarshal) an APOptions from a DER input stream. This form |
| * parsing might be used when expanding a value which is part of |
| * a constructed sequence and uses explicitly tagged type. |
| * |
| * @param data the Der input stream value, which contains one or more marshaled value. |
| * @param explicitTag tag number. |
| * @param optional indicate if this data field is optional. |
| * @return an instance of APOptions. |
| * @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data. |
| * @exception IOException if an I/O error occurs while reading encoded data. |
| * |
| */ |
| public static APOptions parse(DerInputStream data, byte explicitTag, boolean optional) throws Asn1Exception, IOException { |
| if ((optional) && (((byte)data.peekByte() & (byte)0x1F) != explicitTag)) |
| return null; |
| DerValue der = data.getDerValue(); |
| if (explicitTag != (der.getTag() & (byte)0x1F)) { |
| throw new Asn1Exception(Krb5.ASN1_BAD_ID); |
| } else { |
| DerValue subDer = der.getData().getDerValue(); |
| return new APOptions(subDer); |
| } |
| } |
| } |