package org.krakenapps.pcap.decoder.smb.comparser;
import org.krakenapps.pcap.decoder.smb.SmbSession;
import org.krakenapps.pcap.decoder.smb.request.WriteAndCloseRequest;
import org.krakenapps.pcap.decoder.smb.response.WriteAndCloseResponse;
import org.krakenapps.pcap.decoder.smb.structure.SmbData;
import org.krakenapps.pcap.decoder.smb.structure.SmbHeader;
import org.krakenapps.pcap.util.Buffer;
import org.krakenapps.pcap.util.ByteOrderConverter;
//0x2C
public class WriteAndCloseParser implements SmbDataParser{
@Override
public SmbData parseRequest(SmbHeader h , Buffer b , SmbSession session) {
WriteAndCloseRequest data = new WriteAndCloseRequest();
byte []reserved = new byte[12];
byte []buff;
data.setWordCount(b.get());
if( (data.getWordCount() == (0x06)) || (data.getWordCount() == 0x0c ))
{
data.setFid(ByteOrderConverter.swap(b.getShort()));
data.setCountOfBytesToWrite(ByteOrderConverter.swap(b.getShort()));
data.setWriteOffsetInBytes(ByteOrderConverter.swap(b.getInt()));
if(data.getWordCount() == 0x0C){
b.gets(reserved);
data.setReserved(reserved); // optional
}
}
else{
b.skip(data.getWordCount()*2);
data.setMalformed(true);
}
data.setByteCount(ByteOrderConverter.swap(b.getShort()));
if(b.readableBytes() != data.getByteCount()){
data.setMalformed(true);
return data;
}
else if(b.readableBytes() ==0){
data.setMalformed(true);
return data;
}
data.setPad(b.get());
buff = new byte[data.getCountOfBytesToWrite()];
b.gets(buff);
data.setData(buff);
return data;
}
@Override
public SmbData parseResponse(SmbHeader h , Buffer b ,SmbSession session) {
WriteAndCloseResponse data = new WriteAndCloseResponse();
data.setWordCount(b.get());
if(data.getWordCount() == 0x01){
data.setCountOfBytesWritten(ByteOrderConverter.swap(b.getShort()));
}
else{
b.skip(data.getWordCount()*2);
data.setMalformed(true);
}
data.setByteCount(ByteOrderConverter.swap(b.getShort()));
return data;
}
}