NegTokenInit negInit = new NegTokenInit(mechToken);
        byte[] krbToken = negInit.getMechanismToken();


        Path p = Files.createTempFile("fakeserver", ".keytab");
        try {
            Files.write(p, keyTab);
            KeyTab kt = KeyTab.getInstance(p.toFile());

            try ( SmbFile a = new SmbFile(f, "a.txt");
                  SmbFile b = new SmbFile(f, "b.txt");
                  SmbFile c = new SmbFile(f, "c.bar") ) {

                a.createNewFile();
                b.createNewFile();
                c.createNewFile();

                SmbFile[] files = f.listFiles(new DosFileFilter("*.txt", -1));
                assertNotNull(files);

            MsrpcShareEnum rpc = new MsrpcShareEnum(loc.getServer());
            handle.sendrecv(rpc);
            if ( rpc.retval != 0 ) {
                throw new SmbException(rpc.retval, true);
            }
            return rpc.getEntries();
        }
    }


    static FileEntry[] doNetShareEnum ( SmbTreeHandleImpl th ) throws CIFSException {
        SmbComTransaction req = new NetShareEnum(th.getConfig());

            ssn.getSmbTree( LOGON_SHARE, null ).treeConnect( null, null );
        }
        return new NtlmChallenge( trans.server.encryptionKey, dc );
    }
    public static NtlmChallenge getChallengeForDomain()
                throws SmbException, UnknownHostException {
        if( DOMAIN == null ) {
            throw new SmbException( "A domain was not specified" );
        }
synchronized (DOMAIN) {

                    hmac.update(sessionNonce);
                    byte[] ntlm2SessionKey = hmac.digest();

                    if ((getFlags() & NTLMSSP_NEGOTIATE_KEY_EXCH) != 0) {
                        masterKey = new byte[16];
                        RANDOM.nextBytes(masterKey);

                        byte[] exchangedKey = new byte[16];

                        throw new NdrException(NdrException.INVALID_CONFORMANCE);
                    this.s = new DfsInfo1[_ss];
                }
                _src = _src.derive(_si);
                for ( int _i = 0; _i < _ss; _i++ ) {
                    if ( this.s[ _i ] == null ) {
                        this.s[ _i ] = new DfsInfo1();
                    }

    private int contextLifetime = GSSContext.DEFAULT_LIFETIME;
    private boolean canFallback = false;
    private boolean forceFallback;

    static {
        PREFERRED_MECHS.add(new ASN1ObjectIdentifier("1.2.840.113554.1.2.2"));
        PREFERRED_MECHS.add(new ASN1ObjectIdentifier("1.2.840.48018.1.2.2"));
    }


    /**
     * Construct a <code>Kerb5Authenticator</code> object with <code>Subject</code>

        byte[] domain = new byte[0];
        if ( domainStr != null ) {
            try {
                domain = domainStr.getBytes(UNI_ENCODING);
            }
            catch ( IOException ex ) {
                log.debug("Failed to get domain bytes", ex);
            }
        }
        int domainLength = domain.length;
        byte[] server = new byte[0];

            if ( this.realm == null )
                this.realm = "jCIFS";

            this.transportContext = new BaseContext(new PropertyConfiguration(p));
        }
        catch ( CIFSException ex ) {
            throw new ServletException("Failed to initialize CIFS context");
        }
    }


    @Override
    public void destroy () {}


    /**

        final String hostname = "foo";
        final String root = "dfs";
        final String path = "\\bla\\";

        DfsImpl dfs = new DfsImpl(context);

        DfsReferralDataImpl dr = new DfsReferralDataImpl() {

            @Override
            public int getPathConsumed () {
                return 2 + hostname.length() + root.length() + path.length();
            }