}

            // other errors are treated as success
            return;
        }
        ValidateNegotiateInfoResponse out = resp.getOutputData(ValidateNegotiateInfoResponse.class);

        if ( nego.getSecurityMode() != out.getSecurityMode() || nego.getCapabilities() != out.getCapabilities()

                req.setFlags(Smb2IoctlRequest.SMB2_O_IOCTL_IS_FSCTL);
                req.setInputData(dfsReq);
                dfsResp = ipc.send(req).getOutputData(DfsReferralResponseBuffer.class);
            }
            else {
                Trans2GetDfsReferralResponse resp = new Trans2GetDfsReferralResponse(ctx.getConfig());