/* * 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.*; import java.util.Vector; import sun.security.util.*; import java.io.IOException; import java.math.BigInteger; /** * Implements the ASN.1 KRB_KDC_REQ type. * *
* This definition reflects the Network Working Group RFC 4120
* specification available at
*
* http://www.ietf.org/rfc/rfc4120.txt.
*/
public class KDCReq {
public KDCReqBody reqBody;
private int pvno;
private int msgType;
private PAData[] pAData = null; //optional
public KDCReq(PAData[] new_pAData, KDCReqBody new_reqBody,
int req_type) throws IOException {
pvno = Krb5.PVNO;
msgType = req_type;
if (new_pAData != null) {
pAData = new PAData[new_pAData.length];
for (int i = 0; i < new_pAData.length; i++) {
if (new_pAData[i] == null) {
throw new IOException("Cannot create a KDCRep");
} else {
pAData[i] = (PAData) new_pAData[i].clone();
}
}
}
reqBody = new_reqBody;
}
public KDCReq() {
}
public KDCReq(byte[] data, int req_type) throws Asn1Exception,
IOException, KrbException {
init(new DerValue(data), req_type);
}
/**
* Creates an KDCReq object from a DerValue object and asn1 type.
*
* @param der a DER value of an KDCReq object.
* @param req_type a encoded asn1 type 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.
* @exceptoin KrbErrException
*/
public KDCReq(DerValue der, int req_type) throws Asn1Exception,
IOException, KrbException {
init(der, req_type);
}
/**
* Initializes a KDCReq object from a DerValue. The DER encoding
* must be in the format specified by the KRB_KDC_REQ ASN.1 notation.
*
* @param encoding a DER-encoded KDCReq object.
* @param req_type an int indicating whether it's KRB_AS_REQ or KRB_TGS_REQ type
* @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 KrbException if an error occurs while constructing a Realm object,
* or a Krb object from DER-encoded data.
*/
protected void init(DerValue encoding, int req_type) throws Asn1Exception,
IOException, KrbException {
DerValue der, subDer;
BigInteger bint;
if ((encoding.getTag() & 0x1F) != req_type) {
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() & 0x01F) == 0x01) {
bint = subDer.getData().getBigInteger();
this.pvno = bint.intValue();
if (this.pvno != Krb5.PVNO) {
throw new KrbApErrException(Krb5.KRB_AP_ERR_BADVERSION);
}
} else {
throw new Asn1Exception(Krb5.ASN1_BAD_ID);
}
subDer = der.getData().getDerValue();
if ((subDer.getTag() & 0x01F) == 0x02) {
bint = subDer.getData().getBigInteger();
this.msgType = bint.intValue();
if (this.msgType != req_type) {
throw new KrbApErrException(Krb5.KRB_AP_ERR_MSG_TYPE);
}
} else {
throw new Asn1Exception(Krb5.ASN1_BAD_ID);
}
if ((der.getData().peekByte() & 0x1F) == 0x03) {
subDer = der.getData().getDerValue();
DerValue subsubDer = subDer.getData().getDerValue();
if (subsubDer.getTag() != DerValue.tag_SequenceOf) {
throw new Asn1Exception(Krb5.ASN1_BAD_ID);
}
Vector