| /* |
| * 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. Sun designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.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.util.*; |
| import sun.security.krb5.Asn1Exception; |
| import java.io.IOException; |
| |
| /** |
| * Implements the ASN.1 PA-DATA type. |
| * |
| * <xmp> |
| * PA-DATA ::= SEQUENCE { |
| * -- NOTE: first tag is [1], not [0] |
| * padata-type [1] Int32, |
| * padata-value [2] OCTET STRING -- might be encoded AP-REQ |
| * } |
| * </xmp> |
| * |
| * <p> |
| * This definition reflects the Network Working Group RFC 4120 |
| * specification available at |
| * <a href="http://www.ietf.org/rfc/rfc4120.txt"> |
| * http://www.ietf.org/rfc/rfc4120.txt</a>. |
| */ |
| |
| public class PAData { |
| private int pADataType; |
| private byte[] pADataValue = null; |
| private static final byte TAG_PATYPE = 1; |
| private static final byte TAG_PAVALUE = 2; |
| |
| private PAData() { |
| } |
| |
| public PAData(int new_pADataType, byte[] new_pADataValue) { |
| pADataType = new_pADataType; |
| if (new_pADataValue != null) { |
| pADataValue = new_pADataValue.clone(); |
| } |
| } |
| |
| public Object clone() { |
| PAData new_pAData = new PAData(); |
| new_pAData.pADataType = pADataType; |
| if (pADataValue != null) { |
| new_pAData.pADataValue = new byte[pADataValue.length]; |
| System.arraycopy(pADataValue, 0, new_pAData.pADataValue, |
| 0, pADataValue.length); |
| } |
| return new_pAData; |
| } |
| |
| /** |
| * Constructs a PAData object. |
| * @param encoding a Der-encoded data. |
| * @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 PAData(DerValue encoding) throws Asn1Exception, IOException { |
| DerValue der = null; |
| if (encoding.getTag() != DerValue.tag_Sequence) { |
| throw new Asn1Exception(Krb5.ASN1_BAD_ID); |
| } |
| der = encoding.getData().getDerValue(); |
| if ((der.getTag() & 0x1F) == 0x01) { |
| this.pADataType = der.getData().getBigInteger().intValue(); |
| } |
| else |
| throw new Asn1Exception(Krb5.ASN1_BAD_ID); |
| der = encoding.getData().getDerValue(); |
| if ((der.getTag() & 0x1F) == 0x02) { |
| this.pADataValue = der.getData().getOctetString(); |
| } |
| if (encoding.getData().available() > 0) |
| throw new Asn1Exception(Krb5.ASN1_BAD_ID); |
| } |
| |
| /** |
| * Encodes this object to an OutputStream. |
| * |
| * @return byte array of the encoded data. |
| * @exception IOException if an I/O error occurs while reading encoded data. |
| * @exception Asn1Exception on encoding errors. |
| */ |
| public byte[] asn1Encode() throws Asn1Exception, IOException { |
| |
| DerOutputStream bytes = new DerOutputStream(); |
| DerOutputStream temp = new DerOutputStream(); |
| |
| temp.putInteger(pADataType); |
| bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, TAG_PATYPE), temp); |
| temp = new DerOutputStream(); |
| temp.putOctetString(pADataValue); |
| bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, TAG_PAVALUE), temp); |
| |
| temp = new DerOutputStream(); |
| temp.write(DerValue.tag_Sequence, bytes); |
| return temp.toByteArray(); |
| } |
| |
| // accessor methods |
| public int getType() { |
| return pADataType; |
| } |
| |
| public byte[] getValue() { |
| return ((pADataValue == null) ? null : pADataValue.clone()); |
| } |
| } |