protected static final int ATTR_SET_MASK = 0x30A7;
    protected static final int DEFAULT_ATTR_EXPIRATION_PERIOD = 5000;

    protected static final int HASH_DOT = ".".hashCode();
    protected static final int HASH_DOT_DOT = "..".hashCode();

    private static Logger log = LoggerFactory.getLogger(SmbFile.class);

    private long createTime;
    private long lastModified;

            updatePreauthHash(resp.getRequestRaw());
            updatePreauthHash(resp.getResponseRaw());
            if ( log.isDebugEnabled() ) {
                log.debug("Preauth hash after negotiate " + Hexdump.toHexString(this.preauthIntegrityHash));
            }
        }
    }


    protected synchronized void doDisconnect ( boolean hard ) throws IOException {

        this.preauthIntegrityHash = preauthIntegrity ? trans.getPreauthIntegrityHash() : null;

        if ( this.preauthIntegrityHash != null && log.isDebugEnabled() ) {
            log.debug("Initial session preauth hash " + Hexdump.toHexString(this.preauthIntegrityHash));
        }

        while ( true ) {
            Subject s = this.credentials.getSubject();
            if ( ctx == null ) {