}
                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;

                }

                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 */

     * @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);