}
        this.tid = response.getTid();
        String rsvc = response.getService();
        if ( rsvc == null && !transport.isSMB2() ) {
            throw new SmbException("Service is NULL");
        }

        if ( transport.getContext().getConfig().isIpcSigningEnforced() && ( "IPC$".equals(this.getShare()) || "IPC".equals(rsvc) )
                && !sess.getCredentials().isAnonymous() && sess.getDigest() == null ) {