this.maxFragmentedSize = RdmaCapabilities.DEFAULT_MAX_FRAGMENTED_SIZE;
    }

    /**
     * Check if negotiation was successful
     *
     * @return true if successful, false otherwise
     */
    public boolean isSuccess() {
        return status == 0;
    }

    /**
     * Get negotiation status
     *
     * @return status code (0 = success)
     */
    public int getStatus() {
        return status;

/**
 * Enhanced Pre-Authentication Integrity Service for SMB 3.1.1.
 *
 * Provides comprehensive pre-authentication integrity protection against
 * downgrade attacks by maintaining cryptographic hash chains of all
 * negotiation and session setup messages.
 */
public class PreauthIntegrityService {

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

    // Hash algorithm constants

        this.creditsRequested = creditsRequested;
    }

    /**
     * Get the negotiation status
     *
     * @return status code
     */
    public int getStatus() {
        return status;
    }

    /**
     * Set the negotiation status
     *
     * @param status status code
     */
    public void setStatus(int status) {
        this.status = status;

 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package jcifs.internal.smb2.rdma;

/**
 * RDMA negotiation request parameters.
 *
 * Used during RDMA connection establishment to negotiate
 * protocol version and connection parameters.
 */
public class RdmaNegotiateRequest {

    private int minVersion;

     * @param skipAuthentication If true the negotiation is only done if it is
     * initiated by the client (MSIE post requests after successful NTLM SSP
     * authentication). If false and the user has not been authenticated yet
     * the client will be forced to send an authentication (server sends
     * HttpServletResponse.SC_UNAUTHORIZED).
     * @return True if the negotiation is complete, otherwise false

    /**
     * Negotiate RDMA parameters
     *
     * @param request negotiation request parameters
     * @return negotiation response
     * @throws IOException if negotiation fails
     */
    public abstract RdmaNegotiateResponse negotiate(RdmaNegotiateRequest request) throws IOException;

    /**

    <artifactId>jcifs</artifactId>
    <version>2.1.39</version>
</dependency>
```



## Features

### Protocol Support
The library supports a full range of SMB protocols with automatic negotiation:

**Supported Protocols:**
- **SMB1/CIFS**: Legacy support via `jcifs.smb1/` package
- **SMB 2.0.2**: Windows Vista+ (0x0202)
- **SMB 2.1**: Windows 7/Server 2008R2 (0x0210)

            log.debug("Secure negotiation does not apply");
            return;
        }

        final Smb2NegotiateResponse nego = (Smb2NegotiateResponse) trans.getNegotiateResponse();
        if (nego.getSelectedDialect().atLeast(DialectVersion.SMB311)) {
            // have preauth integrity instead
            log.debug("Secure negotiation does not apply, is SMB3.1");
            return;
        }

     *
     * @param req
     *            The servlet request
     * @param resp
     *            The servlet response
     * @param skipAuthentication
     *            If true the negotiation is only done if it is
     *            initiated by the client (MSIE post requests after successful NTLM SSP
     *            authentication). If false and the user has not been authenticated yet

    /**
     * Constructs an SMB2 negotiate request with the specified configuration and security mode.
     *
     * @param config the configuration for this request
     * @param securityMode the security mode flags for negotiation
     */
    public Smb2NegotiateRequest(final Configuration config, final int securityMode) {
        super(config, SMB2_NEGOTIATE);
        this.securityMode = securityMode;

        if (!config.isDfsDisabled()) {