negoReqBuffer = new byte[reqLen];
                System.arraycopy(this.sbuf, 4, negoReqBuffer, 0, reqLen);
            }

            negotiatePeek();

            r = smb2neg.initResponse(getContext());
            final int respLen = r.decode(this.sbuf, 4);
            r.received();

            if (doPreauth) {
                negoRespBuffer = new byte[respLen];