/* * 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.KrbException;import sun.security.util.*;import sun.security.krb5.Asn1Exception;import java.io.IOException;import sun.security.krb5.internal.util.KerberosString;/** * Implements the ASN.1 PA-DATA type. * * <xmp> * PA-DATA ::= SEQUENCE { * -- NOTE: first tag is [1], not [0] * padata-type [1] Int32, * padata-value [2] OCTET STRING -- might be encoded AP-REQ * } * </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 PAData { private int pADataType; private byte[] pADataValue = null; private static final byte TAG_PATYPE = 1; private static final byte TAG_PAVALUE = 2; private PAData() { } public PAData(int new_pADataType, byte[] new_pADataValue) { pADataType = new_pADataType; if (new_pADataValue != null) { pADataValue = new_pADataValue.clone(); } } public Object clone() { PAData new_pAData = new PAData(); new_pAData.pADataType = pADataType; if (pADataValue != null) { new_pAData.pADataValue = new byte[pADataValue.length]; System.arraycopy(pADataValue, 0, new_pAData.pADataValue, 0, pADataValue.length); } return new_pAData; } /** * Constructs a PAData object. * @param encoding a Der-encoded data. * @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 PAData(DerValue encoding) throws Asn1Exception, IOException { DerValue der = null; if (encoding.getTag() != DerValue.tag_Sequence) { throw new Asn1Exception(Krb5.ASN1_BAD_ID); } der = encoding.getData().getDerValue(); if ((der.getTag() & 0x1F) == 0x01) { this.pADataType = der.getData().getBigInteger().intValue(); } else throw new Asn1Exception(Krb5.ASN1_BAD_ID); der = encoding.getData().getDerValue(); if ((der.getTag() & 0x1F) == 0x02) { this.pADataValue = der.getData().getOctetString(); } if (encoding.getData().available() > 0) throw new Asn1Exception(Krb5.ASN1_BAD_ID); } /** * Encodes this object to an OutputStream. * * @return byte array of the encoded data. * @exception IOException if an I/O error occurs while reading encoded data. * @exception Asn1Exception on encoding errors. */ public byte[] asn1Encode() throws Asn1Exception, IOException { DerOutputStream bytes = new DerOutputStream(); DerOutputStream temp = new DerOutputStream(); temp.putInteger(pADataType); bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, TAG_PATYPE), temp); temp = new DerOutputStream(); temp.putOctetString(pADataValue); bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, TAG_PAVALUE), temp); temp = new DerOutputStream(); temp.write(DerValue.tag_Sequence, bytes); return temp.toByteArray(); } // accessor methods public int getType() { return pADataType; } public byte[] getValue() { return ((pADataValue == null) ? null : pADataValue.clone()); } /** * A place to store a pair of salt and s2kparams. * An empty salt is changed to null, to be interopable * with Windows 2000 server. */ public static class SaltAndParams { public final String salt; public final byte[] params; public SaltAndParams(String s, byte[] p) { if (s != null && s.isEmpty()) s = null; this.salt = s; this.params = p; } } /** * Fetches salt and s2kparams value for eType in a series of PA-DATAs. * The preference order is PA-ETYPE-INFO2 > PA-ETYPE-INFO > PA-PW-SALT. * If multiple PA-DATA for the same etype appears, use the last one. * (This is useful when PA-DATAs from KRB-ERROR and AS-REP are combined). * @return salt and s2kparams. never null, its field might be null. */ public static SaltAndParams getSaltAndParams(int eType, PAData[] pas) throws Asn1Exception, KrbException { if (pas == null || pas.length == 0) { return new SaltAndParams(null, null); } String paPwSalt = null; ETypeInfo2 info2 = null; ETypeInfo info = null; for (PAData p: pas) { if (p.getValue() != null) { try { switch (p.getType()) { case Krb5.PA_PW_SALT: paPwSalt = new String(p.getValue(), KerberosString.MSNAME?"UTF8":"8859_1"); break; case Krb5.PA_ETYPE_INFO: DerValue der = new DerValue(p.getValue()); while (der.data.available() > 0) { DerValue value = der.data.getDerValue(); ETypeInfo tmp = new ETypeInfo(value); if (tmp.getEType() == eType) info = tmp; } break; case Krb5.PA_ETYPE_INFO2: der = new DerValue(p.getValue()); while (der.data.available() > 0) { DerValue value = der.data.getDerValue(); ETypeInfo2 tmp = new ETypeInfo2(value); if (tmp.getEType() == eType) info2 = tmp; } break; } } catch (IOException ioe) { // Ignored } } } if (info2 != null) { return new SaltAndParams(info2.getSalt(), info2.getParams()); } else if (info != null) { return new SaltAndParams(info.getSalt(), null); } return new SaltAndParams(paPwSalt, null); }}
/*
* 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.KrbException;
import sun.security.util.*;
import sun.security.krb5.Asn1Exception;
import java.io.IOException;
import sun.security.krb5.internal.util.KerberosString;
/**
* Implements the ASN.1 PA-DATA type.
*
* <xmp>
* PA-DATA ::= SEQUENCE {
* -- NOTE: first tag is [1], not [0]
* padata-type [1] Int32,
* padata-value [2] OCTET STRING -- might be encoded AP-REQ
* }
* </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 PAData {
private int pADataType;
private byte[] pADataValue = null;
private static final byte TAG_PATYPE = 1;
private static final byte TAG_PAVALUE = 2;
private PAData() {
}
public PAData(int new_pADataType, byte[] new_pADataValue) {
pADataType = new_pADataType;
if (new_pADataValue != null) {
pADataValue = new_pADataValue.clone();
}
}
public Object clone() {
PAData new_pAData = new PAData();
new_pAData.pADataType = pADataType;
if (pADataValue != null) {
new_pAData.pADataValue = new byte[pADataValue.length];
System.arraycopy(pADataValue, 0, new_pAData.pADataValue,
0, pADataValue.length);
}
return new_pAData;
}
/**
* Constructs a PAData object.
* @param encoding a Der-encoded data.
* @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 PAData(DerValue encoding) throws Asn1Exception, IOException {
DerValue der = null;
if (encoding.getTag() != DerValue.tag_Sequence) {
throw new Asn1Exception(Krb5.ASN1_BAD_ID);
}
der = encoding.getData().getDerValue();
if ((der.getTag() & 0x1F) == 0x01) {
this.pADataType = der.getData().getBigInteger().intValue();
}
else
throw new Asn1Exception(Krb5.ASN1_BAD_ID);
der = encoding.getData().getDerValue();
if ((der.getTag() & 0x1F) == 0x02) {
this.pADataValue = der.getData().getOctetString();
}
if (encoding.getData().available() > 0)
throw new Asn1Exception(Krb5.ASN1_BAD_ID);
}
/**
* Encodes this object to an OutputStream.
*
* @return byte array of the encoded data.
* @exception IOException if an I/O error occurs while reading encoded data.
* @exception Asn1Exception on encoding errors.
*/
public byte[] asn1Encode() throws Asn1Exception, IOException {
DerOutputStream bytes = new DerOutputStream();
DerOutputStream temp = new DerOutputStream();
temp.putInteger(pADataType);
bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, TAG_PATYPE), temp);
temp = new DerOutputStream();
temp.putOctetString(pADataValue);
bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, TAG_PAVALUE), temp);
temp = new DerOutputStream();
temp.write(DerValue.tag_Sequence, bytes);
return temp.toByteArray();
}
// accessor methods
public int getType() {
return pADataType;
}
public byte[] getValue() {
return ((pADataValue == null) ? null : pADataValue.clone());
}
/**
* A place to store a pair of salt and s2kparams.
* An empty salt is changed to null, to be interopable
* with Windows 2000 server.
*/
public static class SaltAndParams {
public final String salt;
public final byte[] params;
public SaltAndParams(String s, byte[] p) {
if (s != null && s.isEmpty()) s = null;
this.salt = s;
this.params = p;
}
}
/**
* Fetches salt and s2kparams value for eType in a series of PA-DATAs.
* The preference order is PA-ETYPE-INFO2 > PA-ETYPE-INFO > PA-PW-SALT.
* If multiple PA-DATA for the same etype appears, use the last one.
* (This is useful when PA-DATAs from KRB-ERROR and AS-REP are combined).
* @return salt and s2kparams. never null, its field might be null.
*/
public static SaltAndParams getSaltAndParams(int eType, PAData[] pas)
throws Asn1Exception, KrbException {
if (pas == null || pas.length == 0) {
return new SaltAndParams(null, null);
}
String paPwSalt = null;
ETypeInfo2 info2 = null;
ETypeInfo info = null;
for (PAData p: pas) {
if (p.getValue() != null) {
try {
switch (p.getType()) {
case Krb5.PA_PW_SALT:
paPwSalt = new String(p.getValue(),
KerberosString.MSNAME?"UTF8":"8859_1");
break;
case Krb5.PA_ETYPE_INFO:
DerValue der = new DerValue(p.getValue());
while (der.data.available() > 0) {
DerValue value = der.data.getDerValue();
ETypeInfo tmp = new ETypeInfo(value);
if (tmp.getEType() == eType) info = tmp;
}
break;
case Krb5.PA_ETYPE_INFO2:
der = new DerValue(p.getValue());
while (der.data.available() > 0) {
DerValue value = der.data.getDerValue();
ETypeInfo2 tmp = new ETypeInfo2(value);
if (tmp.getEType() == eType) info2 = tmp;
}
break;
}
} catch (IOException ioe) {
// Ignored
}
}
}
if (info2 != null) {
return new SaltAndParams(info2.getSalt(), info2.getParams());
} else if (info != null) {
return new SaltAndParams(info.getSalt(), null);
}
return new SaltAndParams(paPwSalt, null);
}
}