"  Skipping DC interrogation." );
        } else {
            SmbSession ssn = trans.getSmbSession( NtlmPasswordAuthentication.DEFAULT );
            ssn.getSmbTree( LOGON_SHARE, null ).treeConnect( null, null );
        }
        return new NtlmChallenge( trans.server.encryptionKey, dc );
    }
    public static NtlmChallenge getChallengeForDomain()

     * 
     * @throws SmbException
     */
    void treeConnectLogon () throws SmbException;


    /**
     * @param share
     * @param service
     * @return tree instance
     */
    SmbTree getSmbTree ( String share, String service );


    /**
     * Initiate reauthentication
     * 
     * @throws CIFSException
     */
    void reauthenticate () throws CIFSException;

                    try ( SmbSessionInternal smbSession = trans.getSmbSession(this.ctx, host, targetDomain).unwrap(SmbSessionInternal.class);
                          SmbTreeImpl uct = smbSession.getSmbTree(share, null).unwrap(SmbTreeImpl.class);
                          SmbTreeImpl ct = connectTree(loc, host, share, trans, uct, dr) ) {

                        if ( dr != null ) {

              SmbSession sess = trans.unwrap(SmbTransportInternal.class).getSmbSession(c, getTestServer(), null);
              SmbTreeInternal tree = sess.unwrap(SmbSessionInternal.class).getSmbTree(getTestShare(), null).unwrap(SmbTreeInternal.class) ) {

            if ( trans.isSMB2() ) {
                Smb2CreateRequest create = new Smb2CreateRequest(sess.getConfig(), "\\foocc");

        if ( this.sessionKey == null ) {
            throw new CIFSException("No session key available");
        }
        return this.sessionKey;
    }


    @Override
    public SmbTreeImpl getSmbTree ( String share, String service ) {
        if ( share == null ) {
            share = "IPC$";
        }

        synchronized ( this.trees ) {
            for ( SmbTreeImpl t : this.trees ) {

              SmbSessionInternal smbSession = smbTransport.getSmbSession(tf, dc.getHostName(), null).unwrap(SmbSessionInternal.class);
              SmbTreeInternal tree = smbSession.getSmbTree(tf.getConfig().getLogonShare(), null).unwrap(SmbTreeInternal.class) ) {
            tree.connectLogon(tf);
        }
    }

        }
    }
    DfsReferral getDfsReferrals(NtlmPasswordAuthentication auth,
                String path,
                int rn) throws SmbException {
        SmbTree ipc = getSmbSession( auth ).getSmbTree( "IPC$", null );
        Trans2GetDfsReferralResponse resp = new Trans2GetDfsReferralResponse();
        ipc.send( new Trans2GetDfsReferral( path ), resp );

        if (resp.numReferrals == 0) {

                  SmbSession sess = trans.unwrap(SmbTransportInternal.class).getSmbSession(c, getTestServer(), null);
                  SmbTreeInternal tree = sess.unwrap(SmbSessionInternal.class).getSmbTree(getTestShare(), null).unwrap(SmbTreeInternal.class) ) {

                if ( trans.isSMB2() ) {
                    Smb2CreateRequest create = new Smb2CreateRequest(sess.getConfig(), "\\foocc");

                tree = ssn.getSmbTree(null, null);
                tree.treeConnect(null, null);
            } else if ((a = NtlmAuthenticator.requestNtlmPasswordAuthentication(
                        url.toString(), sae)) != null) {
                auth = a;
                ssn = trans.getSmbSession(auth);
                tree = ssn.getSmbTree(share, null);

        }

        try ( SmbSessionImpl sess = getSmbSession(ctx, targetHost, targetDomain);
              SmbTransportImpl transport = sess.getTransport();
              SmbTreeImpl ipc = sess.getSmbTree("IPC$", null) ) {

            DfsReferralRequestBuffer dfsReq = new DfsReferralRequestBuffer(path, 3);
            DfsReferralResponseBuffer dfsResp;
            if ( isSMB2() ) {