final SmbTransportInternal trans, final SmbTreeImpl t, final DfsReferralData referral) throws CIFSException {
        if (log.isDebugEnabled() && trans.isSigningOptional() && !loc.isIPC() && !this.ctx.getConfig().isSigningEnforced()) {
            log.debug("Signatures for file enabled but not required " + this);
        }

        if (referral != null) {
            t.markDomainDfs();
        }