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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.io;
import jcifs.CIFSContext;
import jcifs.Configuration;
import jcifs.internal.smb2.RequestWithFileId;
import jcifs.internal.smb2.ServerMessageBlock2Request;
import jcifs.internal.smb2.Smb2Constants;
import jcifs.internal.util.SMBUtil;
/**
* @author mbechler
*
*/
public class Smb2WriteRequest extends ServerMessageBlock2Request implements RequestWithFileId {
/**
*
*/
public static final int OVERHEAD = Smb2Constants.SMB2_HEADER_LENGTH + 48;
private byte[] data;
private int dataOffset;
private int dataLength;
private byte[] fileId;
private long offset;
private int channel;
private int remainingBytes;
private int writeFlags;
/**
* @param config
* @param fileId
*/
public Smb2WriteRequest ( Configuration config, byte[] fileId ) {
super(config, SMB2_WRITE);
this.fileId = fileId;
}
/**
* {@inheritDoc}
*
* @see jcifs.internal.smb2.RequestWithFileId#setFileId(byte[])
*/
@Override
public void setFileId ( byte[] fileId ) {
this.fileId = fileId;
}
@Override
protected Smb2WriteResponse createResponse ( CIFSContext tc, ServerMessageBlock2Request req ) {
return new Smb2WriteResponse(tc.getConfig());
}
/**
* @param data
* the data to set
* @param offset
* @param length
*/
public void setData ( byte[] data, int offset, int length ) {
this.data = data;
this.dataOffset = offset;
this.dataLength = length;
}
/**
* @param remainingBytes
* the remainingBytes to set
*/
public void setRemainingBytes ( int remainingBytes ) {
this.remainingBytes = remainingBytes;
}
/**
* @param writeFlags
* the writeFlags to set
*/
public void setWriteFlags ( int writeFlags ) {
this.writeFlags = writeFlags;
}
/**
* @param offset
* the offset to set
*/
public void setOffset ( long offset ) {
this.offset = offset;
}
/**
* {@inheritDoc}
*
* @see jcifs.internal.CommonServerMessageBlockRequest#size()
*/
@Override
public int size () {
return size8(Smb2Constants.SMB2_HEADER_LENGTH + 48 + this.dataLength);
}
/**
* {@inheritDoc}
*
* @see jcifs.internal.smb2.ServerMessageBlock2#writeBytesWireFormat(byte[], int)
*/
@Override
protected int writeBytesWireFormat ( byte[] dst, int dstIndex ) {
int start = dstIndex;
SMBUtil.writeInt2(49, dst, dstIndex);
int dataOffsetOffset = dstIndex + 2;
dstIndex += 4;
SMBUtil.writeInt4(this.dataLength, dst, dstIndex);
dstIndex += 4;
SMBUtil.writeInt8(this.offset, dst, dstIndex);
dstIndex += 8;
System.arraycopy(this.fileId, 0, dst, dstIndex, 16);
dstIndex += 16;
SMBUtil.writeInt4(this.channel, dst, dstIndex);
dstIndex += 4;
SMBUtil.writeInt4(this.remainingBytes, dst, dstIndex);
dstIndex += 4;
SMBUtil.writeInt2(0, dst, dstIndex); // writeChannelInfoOffset
SMBUtil.writeInt2(0, dst, dstIndex + 2); // writeChannelInfoLength
dstIndex += 4;
SMBUtil.writeInt4(this.writeFlags, dst, dstIndex);
dstIndex += 4;
SMBUtil.writeInt2(dstIndex - getHeaderStart(), dst, dataOffsetOffset);
if ( dstIndex + this.dataLength > dst.length ) {
throw new IllegalArgumentException(
String.format("Data exceeds buffer size ( remain buffer: %d data length: %d)", dst.length - dstIndex, this.dataLength));
}
System.arraycopy(this.data, this.dataOffset, dst, dstIndex, this.dataLength);
dstIndex += this.dataLength;
return dstIndex - start;
}
/**
* {@inheritDoc}
*
* @see jcifs.internal.smb2.ServerMessageBlock2#readBytesWireFormat(byte[], int)
*/
@Override
protected int readBytesWireFormat ( byte[] buffer, int bufferIndex ) {
return 0;
}
}
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