docs: @Override
      public void setupRequest ( CommonServerMessageBlock request ) {
  
          if ( ! ( request instanceof ServerMessageBlock ) ) {
              return;
          }
  
          ServerMessageBlock req = (ServerMessageBlock) request;
  
          req.addFlags2(this.negotiatedFlags2);
          req.setUseUnicode(req.isForceUnicode() || this.useUnicode);
          if ( req.isUseUnicode() ) {
              req.addFlags2(SmbConstants.FLAGS2_UNICODE);
          }
  
          if ( req instanceof SmbComTransaction ) {
              ( (SmbComTransaction) req ).setMaxBufferSize(this.snd_buf_size);
          }
      }