private static final int NTT_SECONDARY_PARAMETER_OFFSET  = 51;

    static final int NT_TRANSACT_QUERY_SECURITY_DESC = 6;

    int function;

    SmbComNtTransaction() {
        super();
        primarySetupOffset = NTT_PRIMARY_SETUP_OFFSET;
        secondaryParameterOffset = NTT_SECONDARY_PARAMETER_OFFSET;
    }

                this.setCommand(SMB_COM_TRANSACTION_SECONDARY);
            }
            else {
                this.setCommand(SMB_COM_NT_TRANSACT_SECONDARY);
            }
            // totalParameterCount and totalDataCount are set ok from primary

            this.parameterOffset = SECONDARY_PARAMETER_OFFSET;
            if ( ( this.totalParameterCount - this.parameterDisplacement ) > 0 ) {

        buf.dec_ndr_short(); /* max transmit frag size */
        buf.dec_ndr_short(); /* max receive frag size */
        buf.dec_ndr_long();  /* assoc. group */
        int n = buf.dec_ndr_short(); /* secondary addr len */
        buf.advance(n); /* secondary addr */
        buf.align(4);
        buf.dec_ndr_small(); /* num results */
        buf.align(4);
        result = buf.dec_ndr_short();
        buf.dec_ndr_short();

                break;
            case SMB_COM_TRANSACTION2:
                c = "SMB_COM_TRANSACTION2";
                break;
            case SMB_COM_TRANSACTION_SECONDARY:
                c = "SMB_COM_TRANSACTION_SECONDARY";
                break;
            case SMB_COM_FIND_CLOSE2:
                c = "SMB_COM_FIND_CLOSE2";
                break;
            case SMB_COM_TREE_DISCONNECT:

        buf.dec_ndr_short(); /* max transmit frag size */
        buf.dec_ndr_short(); /* max receive frag size */
        buf.dec_ndr_long(); /* assoc. group */
        int n = buf.dec_ndr_short(); /* secondary addr len */
        buf.advance(n); /* secondary addr */
        buf.align(4);
        buf.dec_ndr_small(); /* num results */
        buf.align(4);
        this.result = buf.dec_ndr_short();
        buf.dec_ndr_short();

            c = "SMB_COM_TRANSACTION";
            break;
        case SMB_COM_TRANSACTION2:
            c = "SMB_COM_TRANSACTION2";
            break;
        case SMB_COM_TRANSACTION_SECONDARY:
            c = "SMB_COM_TRANSACTION_SECONDARY";
            break;
        case SMB_COM_FIND_CLOSE2:
            c = "SMB_COM_FIND_CLOSE2";
            break;
        case SMB_COM_TREE_DISCONNECT:

/**
 * 
 */
public abstract class SmbComNtTransaction extends SmbComTransaction {

    // relative to headerStart
    private static final int NTT_PRIMARY_SETUP_OFFSET = 71;
    private static final int NTT_SECONDARY_PARAMETER_OFFSET = 51;

    /**
     * 
     */
    public static final int NT_TRANSACT_QUERY_SECURITY_DESC = 0x6;

    /**
     * 
     */
    public static final int NT_TRANSACT_NOTIFY_CHANGE = 0x4;

        } else {
            if (command != SMB_COM_NT_TRANSACT) {
                command = SMB_COM_TRANSACTION_SECONDARY;
            } else {
                command = SMB_COM_NT_TRANSACT_SECONDARY;
            }
            // totalParameterCount and totalDataCount are set ok from primary

            parameterOffset = SECONDARY_PARAMETER_OFFSET;
            if(( totalParameterCount - parameterDisplacement ) > 0 ) {