/* * 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.util.*;import sun.security.krb5.Asn1Exception;import sun.security.krb5.RealmException;import java.util.Vector;import java.io.IOException;import java.math.BigInteger; /** * Implements the ASN.1 EncKrbCredPart type. * * <xmp> * EncKrbCredPart  ::= [APPLICATION 29] SEQUENCE { *         ticket-info     [0] SEQUENCE OF KrbCredInfo, *         nonce           [1] UInt32 OPTIONAL, *         timestamp       [2] KerberosTime OPTIONAL, *         usec            [3] Microseconds OPTIONAL, *         s-address       [4] HostAddress OPTIONAL, *         r-address       [5] HostAddress OPTIONAL *   } * </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 EncKrbCredPart {     public KrbCredInfo[] ticketInfo = null;    public KerberosTime timeStamp; //optional    private Integer nonce; //optional    private Integer usec; //optional    private HostAddress sAddress; //optional    private HostAddresses rAddress; //optional     public EncKrbCredPart(            KrbCredInfo[] new_ticketInfo,            KerberosTime new_timeStamp,            Integer new_usec,            Integer new_nonce,            HostAddress new_sAddress,            HostAddresses new_rAddress) throws IOException {        if (new_ticketInfo != null) {            ticketInfo = new KrbCredInfo[new_ticketInfo.length];            for (int i = 0; i < new_ticketInfo.length; i++) {                if (new_ticketInfo[i] == null) {                    throw new IOException("Cannot create a EncKrbCredPart");                } else {                    ticketInfo[i] = (KrbCredInfo) new_ticketInfo[i].clone();                }            }        }        timeStamp = new_timeStamp;        usec = new_usec;        nonce = new_nonce;        sAddress = new_sAddress;        rAddress = new_rAddress;    }     public EncKrbCredPart(byte[] data) throws Asn1Exception,            IOException, RealmException {        init(new DerValue(data));    }     public EncKrbCredPart(DerValue encoding) throws Asn1Exception,            IOException, RealmException {        init(encoding);    }     /**     * Initializes an EncKrbCredPart object.     * @param encoding a single DER-encoded value.     * @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data.     * @exception IOException if an I/O error occurs while reading encoded data.     * @exception RealmException if an error occurs while parsing a Realm object.     */    private void init(DerValue encoding) throws Asn1Exception,            IOException, RealmException {        DerValue der, subDer;        //may not be the correct error code for a tag        //mismatch on an encrypted structure        nonce = null;        timeStamp = null;        usec = null;        sAddress = null;        rAddress = null;        if (((encoding.getTag() & (byte) 0x1F) != (byte) 0x1D)                || (encoding.isApplication() != true)                || (encoding.isConstructed() != true)) {            throw new Asn1Exception(Krb5.ASN1_BAD_ID);        }        der = encoding.getData().getDerValue();        if (der.getTag() != DerValue.tag_Sequence) {            throw new Asn1Exception(Krb5.ASN1_BAD_ID);        }         subDer = der.getData().getDerValue();        if ((subDer.getTag() & (byte) 0x1F) == (byte) 0x00) {            DerValue derValues[] = subDer.getData().getSequence(1);            ticketInfo = new KrbCredInfo[derValues.length];            for (int i = 0; i < derValues.length; i++) {                ticketInfo[i] = new KrbCredInfo(derValues[i]);            }        } else {            throw new Asn1Exception(Krb5.ASN1_BAD_ID);        }        if (der.getData().available() > 0) {            if (((byte) (der.getData().peekByte()) & (byte) 0x1F) == (byte) 0x01) {                subDer = der.getData().getDerValue();                nonce = new Integer(subDer.getData().getBigInteger().intValue());            }        }        if (der.getData().available() > 0) {            timeStamp = KerberosTime.parse(der.getData(), (byte) 0x02, true);        }        if (der.getData().available() > 0) {            if (((byte) (der.getData().peekByte()) & (byte) 0x1F) == (byte) 0x03) {                subDer = der.getData().getDerValue();                usec = new Integer(subDer.getData().getBigInteger().intValue());            }        }        if (der.getData().available() > 0) {            sAddress = HostAddress.parse(der.getData(), (byte) 0x04, true);        }        if (der.getData().available() > 0) {            rAddress = HostAddresses.parse(der.getData(), (byte) 0x05, true);        }        if (der.getData().available() > 0) {            throw new Asn1Exception(Krb5.ASN1_BAD_ID);        }    }     /**     * Encodes an EncKrbCredPart object.     * @return byte array of encoded EncKrbCredPart object.     * @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 byte[] asn1Encode() throws Asn1Exception, IOException {        DerOutputStream bytes = new DerOutputStream();        DerOutputStream temp = new DerOutputStream();        DerValue[] tickets = new DerValue[ticketInfo.length];        for (int i = 0; i < ticketInfo.length; i++) {            tickets[i] = new DerValue(ticketInfo[i].asn1Encode());        }        temp.putSequence(tickets);        bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT,                true, (byte) 0x00), temp);         if (nonce != null) {            temp = new DerOutputStream();            temp.putInteger(BigInteger.valueOf(nonce.intValue()));            bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT,                    true, (byte) 0x01), temp);        }        if (timeStamp != null) {            bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT,                    true, (byte) 0x02), timeStamp.asn1Encode());        }        if (usec != null) {            temp = new DerOutputStream();            temp.putInteger(BigInteger.valueOf(usec.intValue()));            bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT,                    true, (byte) 0x03), temp);        }        if (sAddress != null) {            bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT,                    true, (byte) 0x04), sAddress.asn1Encode());        }        if (rAddress != null) {            bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT,                    true, (byte) 0x05), rAddress.asn1Encode());        }        temp = new DerOutputStream();        temp.write(DerValue.tag_Sequence, bytes);        bytes = new DerOutputStream();        bytes.write(DerValue.createTag(DerValue.TAG_APPLICATION,                true, (byte) 0x1D), temp);        return bytes.toByteArray();    }}