private int maxReferralLevel = 3;

    private final DfsReferralRequestBuffer request;


    /**
     * 
     * @param config
     * @param filename
     */
    public Trans2GetDfsReferral ( Configuration config, String filename ) {
        super(config, SMB_COM_TRANSACTION2, TRANS2_GET_DFS_REFERRAL);
        this.request = new DfsReferralRequestBuffer(filename, 3);
        this.totalDataCount = 0;

        setAsyncId(asyncId);
        if ( asyncId != 0 ) {
            addFlags(SMB2_FLAGS_ASYNC_COMMAND);
        }
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.util.transport.Request#getCreditCost()
     */
    @Override
    public int getCreditCost () {
        return 1;
    }


    /**
     * {@inheritDoc}
     *

        if ( ( type1Flags & NTLMSSP_REQUEST_TARGET ) != 0 ) {
            String domain = tc.getConfig().getDefaultDomain();
            if ( domain != null ) {
                flags |= NTLMSSP_REQUEST_TARGET | NTLMSSP_TARGET_TYPE_DOMAIN;
            }
        }
        return flags;
    }


    /**

    /**
     * Calls the static {@link #authenticate(HttpServletRequest,
     * HttpServletResponse, byte[])} method to perform NTLM authentication
     * for the specified servlet request.
     *
     * @param req The request being serviced.
     * @param resp The response.
     * @param challenge The domain controller challenge.
     * @throws IOException If an IO error occurs.

import jcifs.CIFSContext;
import jcifs.Configuration;
import jcifs.internal.Request;
import jcifs.internal.smb1.SMB1SigningDigest;
import jcifs.internal.smb1.ServerMessageBlock;
import jcifs.internal.util.SMBUtil;


/**
 * 
 *
 */
public class SmbComClose extends ServerMessageBlock implements Request<SmbComBlankResponse> {

    private static final Logger log = LoggerFactory.getLogger(SmbComClose.class);

    SessionRequestPacket() {
        calledName = new Name();
        callingName = new Name();
    }
    public SessionRequestPacket( Name calledName, Name callingName ) {
        type = SESSION_REQUEST;
        this.calledName = calledName;
        this.callingName = callingName;
    }
    int writeTrailerWireFormat( byte[] dst, int dstIndex ) {
        int start = dstIndex;

     * opened if it is not and should be closed with {@link #close()} when no longer
     * needed.
     * 
     * Closing the context should cancel a pending notify request, but that does not seem to work reliable in all
     * implementations.
     * 
     * Changes in between these calls (as long as the file is open) are buffered by the server, so iteratively calling

     * negotiate manually to achive a variety of different behavior.
     */
    @Override
    public void doFilter ( ServletRequest request, ServletResponse response, FilterChain chain ) throws IOException, ServletException {
        HttpServletRequest req = (HttpServletRequest) request;
        HttpServletResponse resp = (HttpServletResponse) response;
        NtlmPasswordAuthentication ntlm;

     * @param length The length of the SMB data starting at offset. 
     */
    void sign(byte[] data, int offset, int length,
                ServerMessageBlock request, ServerMessageBlock response) {
        request.signSeq = signSequence;
        if( response != null ) {
            response.signSeq = signSequence + 1;
            response.verifyFailed = false;
        }

        try {

 * @internal
 */
public enum RequestParam {

    /**
     * 
     */
    NONE,

    /**
     * Wait indefinitely for a response
     */
    NO_TIMEOUT,

    /**
     * Do not retry request on failure
     */
    NO_RETRY,

    /**
     * Save the raw payload for further inspection
     */
    RETAIN_PAYLOAD