assertArrayEquals(new byte[] { 1, 2, 3 }, key);
        verify(tree, times(1)).getSession();
        verify(session, times(1)).getSessionKey();
    }

    @Test
    @DisplayName("sendrecv SMB2 path issues IOCTL and returns response length")
    void testSendRecvSmb2() throws IOException, CIFSException {
        when(pipe.ensureTreeConnected()).thenReturn(tree);
        when(tree.acquire()).thenReturn(tree);

        synchronized (this) {
            try {
                state = 1;
                final DcerpcMessage bind = new DcerpcBind(binding, this);
                sendrecv(bind);
            } catch (final IOException ioe) {
                state = 0;
                throw ioe;
            }
        }
    }

    /**

     * @param maxRecvCnt the maximum number of bytes to receive
     * @return len the number of bytes received
     * @throws IOException if an I/O error occurs
     */
    int sendrecv(byte[] buf, int off, int length, byte[] inB, int maxRecvCnt) throws IOException;

        synchronized (this) {
            try {
                this.state = 1;
                final DcerpcMessage bind = new DcerpcBind(this.binding, this);
                sendrecv(bind);
            } catch (final IOException ioe) {
                this.state = 0;
                throw ioe;
            }
        }
    }

    /**
     * Send and receive a DCE/RPC message

     * @param params additional parameters for the request
     * @return the response
     * @throws IOException if an I/O error occurs
     */
    public <T extends Response> T sendrecv(final Request request, final T response, final Set<RequestParam> params) throws IOException {
        if (isDisconnected() && this.state != 5) {
            throw new TransportException("Transport is disconnected " + this.name);

     * @param timeout the maximum time to wait for the response in milliseconds
     * @throws IOException if an I/O error occurs during communication
     */
    public synchronized void sendrecv(final Request request, final Response response, long timeout) throws IOException {
        makeKey(request);
        response.isReceived = false;
        try {
            response_map.put(request, response);

        throw new IOException("Failed to establish session with " + this.address);
    }

    private SmbNegotiation negotiate(int prt) throws IOException {
        /*
         * We cannot use Transport.sendrecv() yet because
         * the Transport thread is not setup until doConnect()
         * returns and we want to suppress all communication
         * until we have properly negotiated.
         */

        try {
            handle.sendrecv(rpc);
        } catch (final DcerpcException de) {
            if (de.getErrorCode() != DcerpcError.DCERPC_FAULT_OP_RNG_ERROR) {
                throw de;
            }
            final MsrpcSamrConnect2 rpc2 = new MsrpcSamrConnect2(server, access, this);
            handle.sendrecv(rpc2);
        }
        this.opened = true;
    }

    @Override

            throws IOException {
        this.handle = handle;
        final MsrpcSamrOpenAlias rpc = new MsrpcSamrOpenAlias(domainHandle, access, rid, this);
        handle.sendrecv(rpc);
        if (rpc.retval != 0) {
            throw new SmbException(rpc.retval, false);
        }
    }

    /**
     * Closes this SAM alias handle.
     *

        this.handle = handle;
        if (server == null) {
            server = "\\\\";
        }
        final MsrpcLsarOpenPolicy2 rpc = new MsrpcLsarOpenPolicy2(server, access, this);
        handle.sendrecv(rpc);
        if (rpc.retval != 0) {
            throw new SmbException(rpc.retval, false);
        }
        this.opened = true;
    }

    @Override
    public synchronized void close() throws IOException {