plugins/ethercat/packet-ethercat-frame.h

   1 /* paket-ethercat-frame.h
   2  *
   3  * $Id$
   4  *
   5  * Copyright (c) 2007 by Beckhoff Automation GmbH
   6  *
   7  * Wireshark - Network traffic analyzer
   8  * By Gerald Combs <gerald@wireshark.org>
   9  * Copyright 1998 Gerald Combs
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License
  13  * as published by the Free Software Foundation; either version 2
  14  * of the License, or (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  24  */
  25 #ifndef _PACKET_ETHERCAT_FRAME_H
  26 #define _PACKET_ETHERCAT_FRAME_H
  27
  28 /* structure for decoding the header -----------------------------------------*/
  29 typedef union _EtherCATFrameParser
  30 {
  31    struct
  32    {
  33       guint16 length   : 11;
  34       guint16 reserved : 1;
  35       guint16 protocol : 4;
  36    } v;
  37    guint16 hdr;
  38 } EtherCATFrameParserHDR;
  39 typedef EtherCATFrameParserHDR *PEtherCATFrameParserHDR;
  40
  41 #define EtherCATFrameParserHDR_Len (int)sizeof(EtherCATFrameParserHDR)
  42
  43 #endif