author | erikj |
Tue, 12 Sep 2017 19:03:39 +0200 | |
changeset 47216 | 71c04702a3d5 |
parent 32003 | jdk/src/java.security.jgss/share/classes/sun/security/krb5/internal/KRBSafeBody.java@acb12269398a |
permissions | -rw-r--r-- |
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/* |
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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 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 KRBSafeBody type. |
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* |
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* <pre>{@code |
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* KRB-SAFE-BODY ::= SEQUENCE { |
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* user-data [0] OCTET STRING, |
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* timestamp [1] KerberosTime OPTIONAL, |
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* usec [2] Microseconds OPTIONAL, |
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* seq-number [3] UInt32 OPTIONAL, |
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* s-address [4] HostAddress, |
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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 KRBSafeBody { |
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public byte[] userData = null; |
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public KerberosTime timestamp; //optional |
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public Integer usec; //optional |
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public Integer seqNumber; //optional |
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public HostAddress sAddress; |
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public HostAddress rAddress; //optional |
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public KRBSafeBody( |
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byte[] new_userData, |
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KerberosTime new_timestamp, |
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Integer new_usec, |
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Integer new_seqNumber, |
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HostAddress new_sAddress, |
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HostAddress new_rAddress |
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) { |
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if (new_userData != null) { |
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userData = new_userData.clone(); |
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} |
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timestamp = new_timestamp; |
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usec = new_usec; |
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seqNumber = new_seqNumber; |
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sAddress = new_sAddress; |
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rAddress = new_rAddress; |
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} |
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/** |
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* Constructs a KRBSafeBody object. |
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* @param encoding a Der-encoded data. |
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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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public KRBSafeBody(DerValue encoding) throws Asn1Exception, IOException { |
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DerValue der; |
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if (encoding.getTag() != DerValue.tag_Sequence) { |
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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() & 0x1F) == 0x00) { |
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userData = der.getData().getOctetString(); |
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} |
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else |
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throw new Asn1Exception(Krb5.ASN1_BAD_ID); |
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timestamp = KerberosTime.parse(encoding.getData(), (byte)0x01, true); |
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if ((encoding.getData().peekByte() & 0x1F) == 0x02) { |
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der = encoding.getData().getDerValue(); |
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10d789df41bb
8049892: Replace uses of 'new Integer()' with appropriate alternative across core classes
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usec = der.getData().getBigInteger().intValue(); |
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} |
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if ((encoding.getData().peekByte() & 0x1F) == 0x03) { |
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der = encoding.getData().getDerValue(); |
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10d789df41bb
8049892: Replace uses of 'new Integer()' with appropriate alternative across core classes
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seqNumber = der.getData().getBigInteger().intValue(); |
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} |
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sAddress = HostAddress.parse(encoding.getData(), (byte)0x04, false); |
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if (encoding.getData().available() > 0) |
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rAddress = HostAddress.parse(encoding.getData(), (byte)0x05, true); |
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if (encoding.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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* Encodes an KRBSafeBody object. |
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* @return the byte array of encoded KRBSafeBody 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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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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temp.putOctetString(userData); |
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bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x00), temp); |
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if (timestamp != null) |
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bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x01), timestamp.asn1Encode()); |
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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, true, (byte)0x02), temp); |
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} |
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if (seqNumber != null) { |
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temp = new DerOutputStream(); |
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// encode as an unsigned integer (UInt32) |
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temp.putInteger(BigInteger.valueOf(seqNumber.longValue())); |
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bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x03), temp); |
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} |
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bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x04), sAddress.asn1Encode()); |
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if (rAddress != null) |
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temp = new DerOutputStream(); |
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temp.write(DerValue.tag_Sequence, bytes); |
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return temp.toByteArray(); |
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} |
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/** |
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* Parse (unmarshal) a KRBSafeBody from a DER input stream. This form |
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* parsing might be used when expanding a value which is part of |
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* a constructed sequence and uses explicitly tagged type. |
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* |
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* @exception Asn1Exception on error. |
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* @param data the Der input stream value, which contains one or more marshaled value. |
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* @param explicitTag tag number. |
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* @param optional indicates if this data field is optional |
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* @return an instance of KRBSafeBody. |
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* |
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*/ |
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public static KRBSafeBody parse(DerInputStream data, byte explicitTag, boolean optional) throws Asn1Exception, IOException { |
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if ((optional) && (((byte)data.peekByte() & (byte)0x1F) != explicitTag)) |
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return null; |
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DerValue der = data.getDerValue(); |
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if (explicitTag != (der.getTag() & (byte)0x1F)) |
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throw new Asn1Exception(Krb5.ASN1_BAD_ID); |
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else { |
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DerValue subDer = der.getData().getDerValue(); |
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return new KRBSafeBody(subDer); |
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} |
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} |
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} |