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