}
                else {
                    dc = getTransportContext().getNameServiceClient().getByName(this.domainController, true);
                    challenge = getTransportContext().getTransportPool().getChallenge(getTransportContext(), dc);
                }

                if ( ( ntlm = NtlmSsp.authenticate(getTransportContext(), req, resp, challenge) ) == null ) {
                    return null;

                byte[] challenge = getTransportContext().getTransportPool().getChallenge(getTransportContext(), dc);
                ntlm = NtlmSsp.authenticate(getTransportContext(), request, response, challenge);
                if ( ntlm == null )
                    return;
            }
            else {
                String auth = new String(Base64.decode(msg.substring(6)), "US-ASCII");

                }

                req.getSession(); /* ensure session id is set for cluster env. */
                challenge = getTransportContext().getTransportPool().getChallenge(getTransportContext(), dc);
                if ( ( ntlm = NtlmSsp.authenticate(getTransportContext(), req, resp, challenge) ) == null ) {
                    return;
                }
            }
            else { /* Basic */

        if ( log.isDebugEnabled() ) {
            log.debug("Opening file " + u);
        }
        return new SmbFile(u, getTransportContext());
    }


    /**
     * @return
     */
    private CIFSContext getTransportContext () {
        if ( this.transportContext == null ) {
            this.transportContext = SingletonContext.getInstance();
        }

        }
        if ( params.length() > 0 ) {
            url += "?" + params.substring(1);
        }

        return url;
    }


    @Override
    public CIFSContext getTransportContext () {
        return this.pipe.getContext();
    }


    @Override
    public String getServer () {
        return this.pipe.getLocator().getServer();
    }


    @Override

     * @return the server resolved by DFS
     */
    public abstract String getServerWithDfs ();


    /**
     * @return the transport context used
     */
    public abstract CIFSContext getTransportContext ();


    /**
     * 
     * @return session key of the underlying smb session
     * @throws CIFSException
     */
    public abstract byte[] getSessionKey () throws CIFSException;

                    SID[] sids = new SID[rpc.sids.num_sids];

                    String origin_server = handle.getServer();
                    CIFSContext origin_ctx = handle.getTransportContext();

                    for ( int i = 0; i < sids.length; i++ ) {
                        sids[ i ] = new SID(rpc.sids.sids[ i ].sid, 0, null, null, false);

        this.treeConnection.setNonPooled(nonPooled);
    }


    /**
     * @return the transportContext
     */
    @Deprecated
    public CIFSContext getTransportContext () {
        return this.getContext();
    }


    @Override
    public CIFSContext getContext () {
        return this.transportContext;
    }


    @Override