*
 * This class represents negotiate contexts returned by the server
 * in response to negotiate context requests.
 *
 * @author mbechler
 */
public interface NegotiateContextResponse extends Decodable {

    /**
     * Gets the negotiate context type.
     *
     * @return the SMB2 negotiate context type
     */
    int getContextType();

 * pre-authentication integrity protection against downgrade attacks.
 *
 * @author mbechler
 */
public class PreauthIntegrityNegotiateContext implements NegotiateContextRequest, NegotiateContextResponse {

    /**
     * Context type
     */
    public static final int NEGO_CTX_PREAUTH_TYPE = 0x1;

    /**
     * SHA-512
     */
    public static final int HASH_ALGO_SHA512 = 0x1;

 *
 * This negotiate context is used in SMB 3.x to negotiate
 * encryption capabilities and cipher suites.
 *
 * @author mbechler
 */
public class EncryptionNegotiateContext implements NegotiateContextRequest, NegotiateContextResponse {

    /**
     * Context type
     */
    public static final int NEGO_CTX_ENC_TYPE = 0x2;

    /**
     * AES 128 CCM
     */
    public static final int CIPHER_AES128_CCM = 0x1;

 * capabilities when SMB Direct is supported by the client and server.
 */
public class Smb2RdmaTransformCapabilitiesContext implements NegotiateContextRequest, NegotiateContextResponse {

    // Context type
    /** Context ID for RDMA transform capabilities */
    public static final int CONTEXT_ID = Smb2Constants.SMB2_RDMA_TRANSFORM_CAPABILITIES;

    // Transform count and reserved fields

 *
 * This context is used during SMB2 negotiation to negotiate compression
 * algorithms for SMB3 data compression support.
 */
public class CompressionNegotiateContext implements NegotiateContextRequest, NegotiateContextResponse {

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

    // Context type
    /** Context ID for compression capabilities */