}
            return 0L;
        }
        catch ( CIFSException e ) {
            throw SmbException.wrap(e);
        }
    }


    /**
     * @return
     * @throws CIFSException
     * @throws SmbException
     */
    private AllocInfo fetchAllocationInfo ( SmbTreeHandleImpl th ) throws CIFSException, SmbException {
        AllocInfo ai;
        try {

        }
    }


    /**
     * @return the sessionKey
     * @throws CIFSException
     */
    @Override
    public byte[] getSessionKey () throws CIFSException {
        if ( this.sessionKey == null ) {
            throw new CIFSException("No session key available");
        }
        return this.sessionKey;
    }


    @Override

    private void updatePreauthHash ( byte[] input ) throws CIFSException {
        synchronized ( this.preauthIntegrityHash ) {
            this.preauthIntegrityHash = calculatePreauthHash(input, 0, input.length, this.preauthIntegrityHash);
        }
    }


    byte[] calculatePreauthHash ( byte[] input, int off, int len, byte[] oldHash ) throws CIFSException {
        if ( !this.smb2 || this.negotiated == null ) {