/**
     * 
     */
    public static final int SMB2_NEGOTIATE_SIGNING_REQUIRED = 0x0002;

    /**
     * 
     */
    public static final int SMB2_DIALECT_0202 = 0x0202;

    /**
     * 
     */
    public static final int SMB2_DIALECT_0210 = 0x0210;

    /**
     * 
     */
    public static final int SMB2_DIALECT_0300 = 0x0300;

    /**
     * 

a-landmark:before{content:"\f66f"}.fa-language:before{content:"\f1ab"}.fa-laptop:before{content:"\f109"}.fa-laptop-code:before{content:"\f5fc"}.fa-laptop-medical:before{content:"\f812"}.fa-laravel:before{content:"\f3bd"}.fa-lastfm:before{content:"\f202"}.fa-lastfm-square:before{content:"\f203"}.fa-laugh:before{content:"\f599"}.fa-laugh-beam:before{content:"\f59a"}.fa-laugh-squint:before{content:"\f59b"}.fa-laugh-wink:before{content:"\f59c"}.fa-layer-group:before{content:"\f5fd"}.fa-leaf:before{c...

a-landmark:before{content:"\f66f"}.fa-language:before{content:"\f1ab"}.fa-laptop:before{content:"\f109"}.fa-laptop-code:before{content:"\f5fc"}.fa-laptop-medical:before{content:"\f812"}.fa-laravel:before{content:"\f3bd"}.fa-lastfm:before{content:"\f202"}.fa-lastfm-square:before{content:"\f203"}.fa-laugh:before{content:"\f599"}.fa-laugh-beam:before{content:"\f59a"}.fa-laugh-squint:before{content:"\f59b"}.fa-laugh-wink:before{content:"\f59c"}.fa-layer-group:before{content:"\f5fd"}.fa-leaf:before{c...

 * @author mbechler
 *
 */
public enum DialectVersion {

    /**
     * Legacy SMB1/CIFS
     */
    SMB1,

    /**
     * SMB 2.02 - Windows Vista+
     */
    SMB202(Smb2Constants.SMB2_DIALECT_0202),

    /**
     * SMB 2.1 - Windows 7/Server 2008R2
     */
    SMB210(Smb2Constants.SMB2_DIALECT_0210),

    /**
     * SMB 3.0 - Windows 8/Server 2012
     */
    SMB300(Smb2Constants.SMB2_DIALECT_0300),

        Mac m;
        byte[] signingKey;
        switch ( dialect ) {
        case Smb2Constants.SMB2_DIALECT_0202:
        case Smb2Constants.SMB2_DIALECT_0210:
            m = Mac.getInstance("HmacSHA256");
            signingKey = sessionKey;
            break;
        case Smb2Constants.SMB2_DIALECT_0300:

                if ( r.getDialectRevision() == Smb2Constants.SMB2_DIALECT_ANY ) {
                    return negotiate2(r);
                }
                else if ( r.getDialectRevision() != Smb2Constants.SMB2_DIALECT_0202 ) {
                    throw new CIFSException("Server returned invalid dialect verison in multi protocol negotiation");
                }

                int permits = r.getInitialCredits();