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A pure-java CIFS/SMB client library
/*
* © 2017 AgNO3 Gmbh & Co. KG
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package jcifs.internal.smb2.nego;
import jcifs.Configuration;
import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.util.SMBUtil;
/**
* @author mbechler
*
*/
public class PreauthIntegrityNegotiateContext implements NegotiateContextRequest, NegotiateContextResponse {
/**
* Context type
*/
public static final int NEGO_CTX_PREAUTH_TYPE = 0x1;
/**
* SHA-512
*/
public static final int HASH_ALGO_SHA512 = 0x1;
private int[] hashAlgos;
private byte[] salt;
/**
*
* @param config
* @param hashAlgos
* @param salt
*/
public PreauthIntegrityNegotiateContext ( Configuration config, int[] hashAlgos, byte[] salt ) {
this.hashAlgos = hashAlgos;
this.salt = salt;
}
/**
*
*/
public PreauthIntegrityNegotiateContext () {}
/**
* @return the salt
*/
public byte[] getSalt () {
return this.salt;
}
/**
* @return the hashAlgos
*/
public int[] getHashAlgos () {
return this.hashAlgos;
}
/**
* {@inheritDoc}
*
* @see jcifs.internal.smb2.nego.NegotiateContextRequest#getContextType()
*/
@Override
public int getContextType () {
return NEGO_CTX_PREAUTH_TYPE;
}
/**
* {@inheritDoc}
*
* @see jcifs.Encodable#encode(byte[], int)
*/
@Override
public int encode ( byte[] dst, int dstIndex ) {
int start = dstIndex;
SMBUtil.writeInt2(this.hashAlgos != null ? this.hashAlgos.length : 0, dst, dstIndex);
SMBUtil.writeInt2(this.salt != null ? this.salt.length : 0, dst, dstIndex + 2);
dstIndex += 4;
if ( this.hashAlgos != null ) {
for ( int hashAlgo : this.hashAlgos ) {
SMBUtil.writeInt2(hashAlgo, dst, dstIndex);
dstIndex += 2;
}
}
if ( this.salt != null ) {
System.arraycopy(this.salt, 0, dst, dstIndex, this.salt.length);
dstIndex += this.salt.length;
}
return dstIndex - start;
}
/**
* {@inheritDoc}
*
* @see jcifs.Decodable#decode(byte[], int, int)
*/
@Override
public int decode ( byte[] buffer, int bufferIndex, int len ) throws SMBProtocolDecodingException {
int start = bufferIndex;
int nalgos = SMBUtil.readInt2(buffer, bufferIndex);
int nsalt = SMBUtil.readInt2(buffer, bufferIndex + 2);
bufferIndex += 4;
this.hashAlgos = new int[nalgos];
for ( int i = 0; i < nalgos; i++ ) {
this.hashAlgos[ i ] = SMBUtil.readInt2(buffer, bufferIndex);
bufferIndex += 2;
}
this.salt = new byte[nsalt];
System.arraycopy(buffer, bufferIndex, this.salt, 0, nsalt);
bufferIndex += nsalt;
return bufferIndex - start;
}
/**
* {@inheritDoc}
*
* @see jcifs.Encodable#size()
*/
@Override
public int size () {
return 4 + ( this.hashAlgos != null ? 2 * this.hashAlgos.length : 0 ) + ( this.salt != null ? this.salt.length : 0 );
}
}
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