long responseTimeout = 1;
    int signSeq;
    boolean verifyFailed;
    NtlmPasswordAuthentication auth = null;
    String path;
    SigningDigest digest = null;
    ServerMessageBlock response;

    ServerMessageBlock() {
        flags = (byte) (FLAGS_PATH_NAMES_CASELESS | FLAGS_PATH_NAMES_CANONICALIZED);
        pid = PID;
        batchLevel = 0;
    }

    void reset() {

 * and response messages, including header fields, message encoding/decoding, and wire format handling.
 */
public abstract class ServerMessageBlock implements CommonServerMessageBlockRequest, CommonServerMessageBlockResponse, RequestWithPath {

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

    /*
     * These are all the smbs supported by this library. This includes requests

        byte[] buffer = new byte[2];
        ServerMessageBlock.writeInt2(0x1234, buffer, 0);
        assertEquals(0x1234, ServerMessageBlock.readInt2(buffer, 0));
    }

    @Test
    void testInt4ReadWrite() {
        byte[] buffer = new byte[4];
        ServerMessageBlock.writeInt4(0x12345678, buffer, 0);
        assertEquals(0x12345678, ServerMessageBlock.readInt4(buffer, 0));
    }

    @Test

                    ServerMessageBlock.SMB_COM_TRANSACTION_SECONDARY, ServerMessageBlock.SMB_COM_FIND_CLOSE2,
                    ServerMessageBlock.SMB_COM_TREE_DISCONNECT, ServerMessageBlock.SMB_COM_SESSION_SETUP_ANDX,
                    ServerMessageBlock.SMB_COM_LOGOFF_ANDX, ServerMessageBlock.SMB_COM_ECHO, ServerMessageBlock.SMB_COM_MOVE,
                    ServerMessageBlock.SMB_COM_OPEN_ANDX, ServerMessageBlock.SMB_COM_READ_ANDX, ServerMessageBlock.SMB_COM_WRITE_ANDX,

     * {@inheritDoc}
     *
     * @see jcifs.internal.smb1.ServerMessageBlock#getNext()
     */
    @Override
    public ServerMessageBlock getNext() {
        return this.andx;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.CommonServerMessageBlockResponse#getNextResponse()
     */
    @Override
    public ServerMessageBlock getNextResponse() {
        return this.andx;
    }

        verify(mockResponse).setSignSeq(101);

        // Second sign - sequence should have incremented by 2
        ServerMessageBlock mockRequest2 = mock(ServerMessageBlock.class);
        ServerMessageBlock mockResponse2 = mock(ServerMessageBlock.class);
        digest.sign(data, 0, data.length, mockRequest2, mockResponse2);
        verify(mockRequest2).setSignSeq(102);

            throws SmbException {
        if (!"A:".equals(svc)) {
            switch (request.getCommand()) {
            case ServerMessageBlock.SMB_COM_OPEN_ANDX:
            case ServerMessageBlock.SMB_COM_NT_CREATE_ANDX:
            case ServerMessageBlock.SMB_COM_READ_ANDX:
            case ServerMessageBlock.SMB_COM_WRITE_ANDX:

        doNothing().when(transport).connect();

        // Setup response for tree connect
        doAnswer(invocation -> {
            ServerMessageBlock request = invocation.getArgument(0);
            ServerMessageBlock response = invocation.getArgument(1);
            if (request instanceof SmbComTreeConnectAndX && response instanceof SmbComTreeConnectAndXResponse) {

        buf[1] = 0x66; // andxCommand
        ServerMessageBlock.writeInt2(50, buf, 3); // andxOffset
        ServerMessageBlock.writeInt2(20, buf, 9); // byteCount for main block

        // At offset 50, the implementation writes andx.wordCount (0) to buffer
        // Then reads byteCount at offset 51
        ServerMessageBlock.writeInt2(20, buf, 51);

        int n = block.readAndXWireFormat(buf, 0);

     */
    @Override
    public void setupResponse(final Response resp) {
        if (!(resp instanceof ServerMessageBlock)) {
            return;
        }
        ((ServerMessageBlock) resp).setUseUnicode(this.useUnicode);
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.SmbNegotiationResponse#isSigningEnabled()
     */