import jcifs.internal.smb2.ServerMessageBlock2Request;
import jcifs.internal.smb2.Smb2Constants;
import jcifs.internal.util.SMBUtil;

/**
 * SMB2 Negotiate Protocol request message.
 *
 * This command is used to negotiate the SMB protocol dialect
 * and security parameters between client and server.
 *
 * @author mbechler
 */

        // Arrange & Act
        SmbUnsupportedOperationException ex = new SmbUnsupportedOperationException();

        // Assert
        assertEquals("Operation is not supported with the negotiated capabilities", ex.getMessage(),
                "Default message should match the class contract");
        assertNull(ex.getCause(), "No cause expected from default constructor");

     */
    @Test
    public void testSecureNegotiateRequired() throws CIFSException {
        BaseConfiguration config = new BaseConfiguration(true);

        // Verify secure negotiate is required for SMB3
        assertTrue("Secure negotiate should be required for SMB3", config.isRequireSecureNegotiate());
    }

                                  int remoteKey,
                                  int length) throws IOException;
    
    /**
     * Negotiate RDMA parameters
     */
    public abstract RdmaNegotiateResponse negotiate(RdmaNegotiateRequest request) throws IOException;
    
    public boolean canSend() {
        return sendCredits.get() > 0 && state == RdmaConnectionState.ESTABLISHED;
    }

            }
            if (currentAuthMethod.startsWith("Negotiate")) {
                if (currentAuthMethod.length() == 9) {
                    authMethod = "Negotiate";
                    break;
                }
                if (currentAuthMethod.indexOf(' ') != 9) {
                    continue;
                }
                authMethod = "Negotiate";

        when(transport.isSMB2()).thenReturn(false);
        when(transport.getContext()).thenReturn(context);
        when(session.getTargetHost()).thenReturn("localhost");

        // Mock negotiate response for SMB1
        SmbComNegotiateResponse nego = mock(SmbComNegotiateResponse.class);
        ServerData serverData = new ServerData();
        when(nego.getServerData()).thenReturn(serverData);

        when(httpSession.getAttribute("NtlmHttpAuth")).thenReturn(null);

        // Create a custom filter that overrides negotiate to test skipAuthentication
        NtlmHttpFilter customFilter = new NtlmHttpFilter() {
            @Override
            protected NtlmPasswordAuthentication negotiate(HttpServletRequest req, HttpServletResponse resp, boolean skipAuthentication)
                    throws IOException, ServletException {

            this.encryptionKey = encryptionKey.clone();
            this.decryptionKey = decryptionKey.clone();
        }
    }

    /**
     * Get the negotiated cipher identifier
     * @return the negotiated cipher ID
     */
    public int getCipherId() {
        return this.cipherId;
    }

    /**
     * Get the SMB dialect version
     * @return the SMB dialect version

 */
package jcifs.smb;

import jcifs.CIFSException;

/**
 * Exception thrown when an SMB protocol downgrade attack is detected.
 * Indicates that the negotiated protocol version is lower than expected or required.
 *
 * @author mbechler
 *
 */
public class SMBProtocolDowngradeException extends CIFSException {

    /**

        byte[] initialHash = preauthService.getCurrentPreauthHash(sessionId);
        assertNotNull(initialHash);

        // Update with negotiate message
        byte[] negotiateMessage = "SMB2 Negotiate Request".getBytes();
        preauthService.updatePreauthHash(sessionId, negotiateMessage);

        byte[] afterNegotiateHash = preauthService.getCurrentPreauthHash(sessionId);