0N/A/*
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/A/*
0N/A *
0N/A * (C) Copyright IBM Corp. 1999 All Rights Reserved.
0N/A * Copyright 1997 The Open Group Research Institute. All rights reserved.
0N/A */
0N/A
0N/Apackage sun.security.krb5.internal;
0N/A
0N/Aimport sun.security.util.*;
0N/Aimport sun.security.krb5.Asn1Exception;
0N/Aimport java.io.IOException;
0N/Aimport java.math.BigInteger;
0N/A
0N/A/**
0N/A * Implements the ASN.1 TransitedEncoding type.
0N/A *
0N/A * <xmp>
0N/A * TransitedEncoding ::= SEQUENCE {
0N/A * tr-type [0] Int32 -- must be registered --,
0N/A * contents [1] OCTET STRING
0N/A * }
0N/A * </xmp>
0N/A *
0N/A * <p>
0N/A * This definition reflects the Network Working Group RFC 4120
0N/A * specification available at
0N/A * <a href="http://www.ietf.org/rfc/rfc4120.txt">
0N/A * http://www.ietf.org/rfc/rfc4120.txt</a>.
0N/A */
0N/A
0N/Apublic class TransitedEncoding {
0N/A public int trType;
0N/A public byte[] contents;
0N/A
0N/A public TransitedEncoding(int type, byte[] cont) {
0N/A trType = type;
0N/A contents = cont;
0N/A }
0N/A
0N/A /**
0N/A * Constructs a TransitedEncoding object.
0N/A * @param encoding a Der-encoded data.
0N/A * @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data.
0N/A * @exception IOException if an I/O error occurs while reading encoded data.
0N/A */
0N/A
0N/A public TransitedEncoding(DerValue encoding) throws Asn1Exception, IOException {
0N/A if (encoding.getTag() != DerValue.tag_Sequence) {
0N/A throw new Asn1Exception(Krb5.ASN1_BAD_ID);
0N/A }
0N/A DerValue der;
0N/A der = encoding.getData().getDerValue();
0N/A if ((der.getTag() & 0x1F) == 0x00) {
0N/A trType = der.getData().getBigInteger().intValue();
0N/A }
0N/A else
0N/A throw new Asn1Exception(Krb5.ASN1_BAD_ID);
0N/A der = encoding.getData().getDerValue();
0N/A
0N/A if ((der.getTag() & 0x1F) == 0x01) {
0N/A contents = der.getData().getOctetString();
0N/A }
0N/A else
0N/A throw new Asn1Exception(Krb5.ASN1_BAD_ID);
0N/A if (der.getData().available() > 0)
0N/A throw new Asn1Exception(Krb5.ASN1_BAD_ID);
0N/A }
0N/A
0N/A /**
0N/A * Encodes a TransitedEncoding object.
0N/A * @return the byte array of the encoded TransitedEncoding object.
0N/A * @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data.
0N/A * @exception IOException if an I/O error occurs while reading encoded data.
0N/A */
0N/A public byte[] asn1Encode() throws Asn1Exception, IOException {
0N/A DerOutputStream bytes = new DerOutputStream();
0N/A DerOutputStream temp = new DerOutputStream();
0N/A temp.putInteger(BigInteger.valueOf(trType));
0N/A bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x00), temp);
0N/A temp = new DerOutputStream();
0N/A temp.putOctetString(contents);
0N/A bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x01), temp);
0N/A temp = new DerOutputStream();
0N/A temp.write(DerValue.tag_Sequence, bytes);
0N/A return temp.toByteArray();
0N/A }
0N/A
0N/A /**
0N/A * Parse (unmarshal) a TransitedEncoding object from a DER input stream. This form
0N/A * parsing might be used when expanding a value which is part of
0N/A * a constructed sequence and uses explicitly tagged type.
0N/A *
0N/A * @exception Asn1Exception on error.
0N/A * @param data the Der input stream value, which contains one or more marshaled value.
0N/A * @param explicitTag tag number.
0N/A * @param optional indicate if this data field is optional
0N/A * @return an instance of TransitedEncoding.
0N/A *
0N/A */
0N/A public static TransitedEncoding parse(DerInputStream data, byte explicitTag, boolean optional) throws Asn1Exception, IOException {
0N/A if ((optional) && (((byte)data.peekByte() & (byte)0x1F) != explicitTag))
0N/A return null;
0N/A DerValue der = data.getDerValue();
0N/A if (explicitTag != (der.getTag() & (byte)0x1F)) {
0N/A throw new Asn1Exception(Krb5.ASN1_BAD_ID);
0N/A }
0N/A else {
0N/A DerValue subDer = der.getData().getDerValue();
0N/A return new TransitedEncoding(subDer);
0N/A }
0N/A }
0N/A}