protected int maxBufferSize; // set in SmbTransport.sendTransaction() before nextElement called

    private byte[] txn_buf;


    protected SmbComTransaction ( Configuration config, byte command, byte subCommand ) {
        super(config, command);
        this.subCommand = subCommand;
        this.maxDataCount = config.getTransactionBufferSize() - 512;
        this.maxParameterCount = 1024;

            parameterOffset = primarySetupOffset + ( setupCount * 2 ) + 2;
            if (command != SMB_COM_NT_TRANSACT) {
                if( command == SMB_COM_TRANSACTION && isResponse() == false ) {
                    parameterOffset += stringWireLength( name, parameterOffset );
                }
            } else if (command == SMB_COM_NT_TRANSACT) {
                parameterOffset += 2;
            }