public static final int NT_STATUS_END_OF_FILE = 0xC0000011;
    public static final int NT_STATUS_MORE_PROCESSING_REQUIRED = 0xC0000016;
    public static final int NT_STATUS_ACCESS_DENIED = 0xC0000022;
    public static final int NT_STATUS_BUFFER_TOO_SMALL = 0xC0000023;
    public static final int NT_STATUS_OBJECT_NAME_INVALID = 0xC0000033;

    public static final int NT_STATUS_NO_SUCH_FILE = 0xC000000f;
    public static final int NT_STATUS_MORE_PROCESSING_REQUIRED = 0xC0000016;
    public static final int NT_STATUS_ACCESS_DENIED = 0xC0000022;
    public static final int NT_STATUS_BUFFER_TOO_SMALL = 0xC0000023;
    public static final int NT_STATUS_OBJECT_NAME_INVALID = 0xC0000033;

            checkConnection(f);
        }
        catch ( SmbAuthException e ) {
            if ( e.getNtStatus() != NtStatus.NT_STATUS_ACCESS_DENIED ) {
                throw e;
            }
            Assume.assumeNoException(e);
        }
    }


    @Test
    public void logonGuest () throws IOException {

            catch ( SmbUnsupportedOperationException e ) {
                Assume.assumeTrue("No Ntsmbs", false);
            }
            catch ( SmbException e ) {
                if ( e.getNtStatus() == NtStatus.NT_STATUS_ACCESS_DENIED || e.getNtStatus() == WinError.ERROR_ACCESS_DENIED ) {
                    // we might not have permissions for that
                    Assume.assumeTrue("No permission for share security accesss", false);

            }
            log.trace("VALIDATE_NEGOTIATE_INFO returned error", e);
            if ( ( req.getResponse().isReceived() && req.getResponse().isVerifyFailed() ) || e.getNtStatus() == NtStatus.NT_STATUS_ACCESS_DENIED ) {
                // this is the signature error
                throw new SMBProtocolDowngradeException("Signature error during negotiate validation", e);
            }

                    throw e;
                }
            }
            catch ( SmbException se ) {
                log.trace("copyTo0", se);
                if ( se.getNtStatus() != NtStatus.NT_STATUS_ACCESS_DENIED && se.getNtStatus() != NtStatus.NT_STATUS_OBJECT_NAME_COLLISION ) {
                    throw se;
                }
            }
        }

        resp.errorCode = SmbException.getStatusByCode( resp.errorCode );
        switch( resp.errorCode ) {
            case NtStatus.NT_STATUS_OK:
                break;
            case NtStatus.NT_STATUS_ACCESS_DENIED:
            case NtStatus.NT_STATUS_WRONG_PASSWORD:
            case NtStatus.NT_STATUS_LOGON_FAILURE:
            case NtStatus.NT_STATUS_ACCOUNT_RESTRICTION:
            case NtStatus.NT_STATUS_INVALID_LOGON_HOURS: