/* packet-epl_v1.c

 * Routines for "ETHERNET Powerlink 1.0" dissection

 * (ETHERNET Powerlink Powerlink WhitePaper V0006-B)

 *

 * Copyright (c) 2006: Zurich University of Applied Sciences Winterthur (ZHW)

 *                     Institute of Embedded Systems (InES)

 *                     http://ines.zhwin.ch

 *

 *                     - Dominic Bechaz <bdo@zhwin.ch>

 *                     - David Buechi <bhd@zhwin.ch>

 *

 *

 * A dissector for:

 * Wireshark - Network traffic analyzer

 * By Gerald Combs <gerald@wireshark.org>

 * Copyright 1999 Gerald Combs

 *

 * SPDX-License-Identifier: GPL-2.0-or-later

 */

#include "config.h"

#include <epan/packet.h>

#include <epan/etypes.h>

void proto_register_epl_v1(void);

void proto_reg_handoff_epl_v1(void);

static dissector_handle_t epl_v1_handle;

/* Offsets of fields within an EPL_V1 packet. */

#define EPL_V1_SERVICE_OFFSET                     0   /* same offset for all message types*/

#define EPL_V1_DEST_OFFSET                        1   /* same offset for all message types*/

#define EPL_V1_SRC_OFFSET                         2   /* same offset for all message types*/

#define EPL_V1_SOC_C2_OFFSET                      3

#define EPL_V1_SOC_PF_OFFSET                      3

#define EPL_V1_SOC_NET_COMMAND_OFFSET             4

#define EPL_V1_SOC_NET_TIME_OFFSET                6

#define EPL_V1_SOC_POWERLINK_CYCLE_TIME_OFFSET   10

#define EPL_V1_SOC_NET_COMMAND_PARAMETER_OFFSET  14

#define EPL_V1_PREQ_C2_OFFSET                     3

/* "Powerlink Multimanager Konzept V1.1" protocol extension*/

#define PMM_KONZEPT_V1_1_PREQ_YA                  3

#define PMM_KONZEPT_V1_1_PREQ_SC                  3

/* end "Powerlink Multimanager Konzept V1.1" protocol extension*/

#define EPL_V1_PREQ_RD_OFFSET                     3

#define EPL_V1_PREQ_RD_OFFSET                     3

#define EPL_V1_PREQ_POLL_SIZE_OUT_OFFSET          4

#define EPL_V1_PREQ_OUT_DATA_OFFSET              10

#define EPL_V1_PRES_C2_OFFSET                     3

#define EPL_V1_PRES_EX_OFFSET                     3

#define EPL_V1_PRES_RS_OFFSET                     3

#define EPL_V1_PRES_WA_OFFSET                     3

#define EPL_V1_PRES_ER_OFFSET                     3

#define EPL_V1_PRES_RD_OFFSET                     3

#define EPL_V1_PRES_POLL_SIZE_IN_OFFSET           4

#define EPL_V1_PRES_IN_DATA_OFFSET               10

#define EPL_V1_EOC_NET_COMMAND_OFFSET             4

#define EPL_V1_EOC_NET_COMMAND_PARAMETER_OFFSET  14

#define EPL_V1_AINV_CHANNEL_OFFSET                3

#define EPL_V1_ASND_CHANNEL_OFFSET                3

#define EPL_V1_ASND_SIZE_OFFSET                   4

#define EPL_V1_ASND_DATA_OFFSET                   6

#define EPL_V1_ASND_NODE_ID_OFFSET                6

#define EPL_V1_ASND_HARDWARE_REVISION_OFFSET     10

#define EPL_V1_ASND_FIRMWARE_VERSION_OFFSET      14

#define EPL_V1_ASND_DEVICE_VARIANT_OFFSET        18

#define EPL_V1_ASND_POLL_IN_SIZE_OFFSET          22

#define EPL_V1_ASND_POLL_OUT_SIZE_OFFSET         26

/* EPL_V1 message types */

#define EPL_V1_SOC    0x01

#define EPL_V1_EOC    0x02

#define EPL_V1_PREQ   0x03

#define EPL_V1_PRES   0x04

#define EPL_V1_AINV   0x05

#define EPL_V1_ASND   0x06

static const value_string service_vals[] = {

  {EPL_V1_SOC,  "Start of Cyclic (SoC)"   },

  {EPL_V1_EOC,  "End of Cyclic (EoC)"     },

  {EPL_V1_PREQ, "Poll Request (PReq)"     },

  {EPL_V1_PRES, "Poll Response (PRes)"    },

  {EPL_V1_AINV, "Acyclic Invite (AInv)"   },

  {EPL_V1_ASND, "Acyclic Send (ASnd)"     },

  {0,NULL}

};

/* Channel values for EPL_V1 message type "AInv" */

#define EPL_V1_AINV_IDENT         1

#define EPL_V1_AINV_GENERIC     255

static const value_string ainv_channel_number_vals[] = {

  {EPL_V1_AINV_IDENT,     "Ident"             },

  {EPL_V1_AINV_GENERIC,   "Generic Channel"   },

  {0,NULL}

};

/* Channel values for EPL_V1 message type "ASnd" */

#define EPL_V1_ASND_IDENT         1

#define EPL_V1_ASND_GENERIC     255

static const value_string asnd_channel_number_vals[] = {

  {EPL_V1_ASND_IDENT,     "Ident"             },

  {EPL_V1_ASND_GENERIC,   "Generic Channel"   },

  {0,NULL}

};

/* Net Command values for EPL_V1 message type "SoC" */

#define EPL_V1_SOC_NET_COMMAND_IDLE   0

#define EPL_V1_SOC_NET_COMMAND_ACTIVE 1

static const value_string soc_net_command_vals[] = {

  {EPL_V1_SOC_NET_COMMAND_IDLE,   "Net Command Idle"  },

  {EPL_V1_SOC_NET_COMMAND_ACTIVE, "Net Command Active"},

  {0,NULL}

};

/* Net Command values for EPL_V1 message type "EoC" */

#define EPL_V1_EOC_NET_COMMAND_IDLE   0

#define EPL_V1_EOC_NET_COMMAND_ACTIVE 1

static const value_string eoc_net_command_vals[] = {

  {EPL_V1_EOC_NET_COMMAND_IDLE,   "Net Command Idle"  },

  {EPL_V1_EOC_NET_COMMAND_ACTIVE, "Net Command Active"},

  {0,NULL}

};

/* Initialize the protocol and registered fields */

static int proto_epl_v1;

static int hf_epl_v1_service;

static int hf_epl_v1_dest;

static int hf_epl_v1_src;

static int hf_epl_v1_soc_ms;

static int hf_epl_v1_soc_ps;

static int hf_epl_v1_soc_net_command;

static int hf_epl_v1_soc_net_time;

static int hf_epl_v1_soc_powerlink_cycle_time;

static int hf_epl_v1_soc_net_command_parameter;

static int hf_epl_v1_preq_ms;

static int hf_epl_v1_preq_rd;

static int hf_epl_v1_preq_poll_size_out;

static int hf_epl_v1_preq_out_data;

static int hf_epl_v1_pres_ms;

static int hf_epl_v1_pres_ex;

static int hf_epl_v1_pres_rs;

static int hf_epl_v1_pres_wa;

static int hf_epl_v1_pres_er;

static int hf_epl_v1_pres_rd;

static int hf_epl_v1_pres_poll_size_in;

static int hf_epl_v1_pres_in_data;

static int hf_epl_v1_eoc_net_command;

static int hf_epl_v1_eoc_net_command_parameter;

static int hf_epl_v1_ainv_channel;

static int hf_epl_v1_asnd_channel;

static int hf_epl_v1_asnd_size;

static int hf_epl_v1_asnd_data;

static int hf_epl_v1_asnd_node_id;

static int hf_epl_v1_asnd_hardware_revision;

static int hf_epl_v1_asnd_firmware_version;

static int hf_epl_v1_asnd_device_variant;

static int hf_epl_v1_asnd_poll_in_size;

static int hf_epl_v1_asnd_poll_out_size;

static int ett_epl_v1;

static int

dissect_epl_v1_soc(proto_tree *epl_v1_tree, tvbuff_t *tvb, int offset)

{

  proto_tree_add_item(epl_v1_tree, hf_epl_v1_soc_ms, tvb, offset, 1, ENC_LITTLE_ENDIAN);

  proto_tree_add_item(epl_v1_tree, hf_epl_v1_soc_ps, tvb, offset, 1, ENC_LITTLE_ENDIAN);

  offset += 1;

  proto_tree_add_item(epl_v1_tree, hf_epl_v1_soc_net_command, tvb, offset, 2, ENC_LITTLE_ENDIAN);

  offset += 2;

  proto_tree_add_item(epl_v1_tree, hf_epl_v1_soc_net_time, tvb, offset, 4, ENC_LITTLE_ENDIAN);

  offset += 4;

  proto_tree_add_item(epl_v1_tree, hf_epl_v1_soc_powerlink_cycle_time, tvb, offset, 4, ENC_LITTLE_ENDIAN);

  offset += 4;

  proto_tree_add_item(epl_v1_tree, hf_epl_v1_soc_net_command_parameter, tvb, offset, 32, ENC_NA);

  offset += 32;

  return offset;

}

static int

dissect_epl_v1_eoc(proto_tree *epl_v1_tree, tvbuff_t *tvb, int offset)

{

  offset += 1;

  proto_tree_add_item(epl_v1_tree, hf_epl_v1_eoc_net_command, tvb, offset, 2, ENC_LITTLE_ENDIAN);

  offset += 8;

  proto_tree_add_item(epl_v1_tree, hf_epl_v1_eoc_net_command_parameter, tvb, offset, 32, ENC_NA);

  offset += 32;

  return offset;

}

static int

dissect_epl_v1_preq(proto_tree *epl_v1_tree, tvbuff_t *tvb, int offset)

{

  uint16_t len;

  proto_tree_add_item(epl_v1_tree, hf_epl_v1_preq_ms, tvb, offset, 1, ENC_LITTLE_ENDIAN);

  proto_tree_add_item(epl_v1_tree, hf_epl_v1_preq_rd, tvb, offset, 1, ENC_LITTLE_ENDIAN);

  offset += 1;

  /* get length of data */

  proto_tree_add_item(epl_v1_tree, hf_epl_v1_preq_poll_size_out, tvb, offset, 2, ENC_LITTLE_ENDIAN);

  len = tvb_get_letohs(tvb, offset);

  offset += 6;

  if(len>0){

    proto_tree_add_item(epl_v1_tree, hf_epl_v1_preq_out_data, tvb, offset, len, ENC_NA);

    offset += len;

  }

  return offset;

}

static int

dissect_epl_v1_pres(proto_tree *epl_v1_tree, tvbuff_t *tvb, int offset)

{

  uint16_t len;

  proto_tree_add_item(epl_v1_tree, hf_epl_v1_pres_ms, tvb, offset, 1, ENC_LITTLE_ENDIAN);

  proto_tree_add_item(epl_v1_tree, hf_epl_v1_pres_ex, tvb, offset, 1, ENC_LITTLE_ENDIAN);

  proto_tree_add_item(epl_v1_tree, hf_epl_v1_pres_rs, tvb, offset, 1, ENC_LITTLE_ENDIAN);

  proto_tree_add_item(epl_v1_tree, hf_epl_v1_pres_wa, tvb, offset, 1, ENC_LITTLE_ENDIAN);

  proto_tree_add_item(epl_v1_tree, hf_epl_v1_pres_er, tvb, offset, 1, ENC_LITTLE_ENDIAN);

  proto_tree_add_item(epl_v1_tree, hf_epl_v1_pres_rd, tvb, offset, 1, ENC_LITTLE_ENDIAN);

  offset += 1;

  /* get length of data */

  proto_tree_add_item(epl_v1_tree, hf_epl_v1_pres_poll_size_in, tvb, offset, 2, ENC_LITTLE_ENDIAN);

  len = tvb_get_letohs(tvb, offset);

  offset += 6;

  if(len>0){

    proto_tree_add_item(epl_v1_tree, hf_epl_v1_pres_in_data, tvb, offset, len, ENC_NA);

    offset += len;

  }

  return offset;

}

static int

dissect_epl_v1_ainv(proto_tree *epl_v1_tree, tvbuff_t *tvb, int offset)

{

  proto_tree_add_item(epl_v1_tree, hf_epl_v1_ainv_channel, tvb, offset, 1, ENC_LITTLE_ENDIAN);

  offset += 1;

  return offset;

}

static int

dissect_epl_v1_asnd(proto_tree *epl_v1_tree, tvbuff_t *tvb, int offset)

{

  uint8_t epl_v1_asnd_channel;

  uint16_t len;

  /* get ASnd channel */

  proto_tree_add_item_ret_uint8(epl_v1_tree, hf_epl_v1_asnd_channel, tvb, offset, 1, ENC_LITTLE_ENDIAN, &epl_v1_asnd_channel);

  offset += 1;

  /* get length of data */

  proto_tree_add_item_ret_uint16(epl_v1_tree, hf_epl_v1_asnd_size, tvb, offset, 2, ENC_LITTLE_ENDIAN, &len);

  offset += 2;

  /* "Ident" or "Generic" channel? */

  if(epl_v1_asnd_channel == EPL_V1_AINV_IDENT){   /* Ident channel*/

    proto_tree_add_item(epl_v1_tree, hf_epl_v1_asnd_node_id, tvb, offset, 4, ENC_LITTLE_ENDIAN);

    offset += 4;

    proto_tree_add_item(epl_v1_tree, hf_epl_v1_asnd_hardware_revision, tvb, offset, 4, ENC_LITTLE_ENDIAN);

    offset += 4;

    proto_tree_add_item(epl_v1_tree, hf_epl_v1_asnd_firmware_version, tvb, offset, 4, ENC_LITTLE_ENDIAN);

    offset += 4;

    proto_tree_add_item(epl_v1_tree, hf_epl_v1_asnd_device_variant, tvb, offset, 4, ENC_LITTLE_ENDIAN);

    offset += 4;

    proto_tree_add_item(epl_v1_tree, hf_epl_v1_asnd_poll_in_size, tvb, offset, 4, ENC_LITTLE_ENDIAN);

    offset += 4;

    proto_tree_add_item(epl_v1_tree, hf_epl_v1_asnd_poll_out_size, tvb, offset, 4, ENC_LITTLE_ENDIAN);

    offset += 4;

  } else {   /* "Generic" and all other channels */

    proto_tree_add_item(epl_v1_tree, hf_epl_v1_asnd_data, tvb, offset, len, ENC_NA);

    offset += len;

  }

  return offset;

}

/* Code to actually dissect the packets */

static int

dissect_epl_v1(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)

{

  uint8_t epl_v1_service, epl_v1_dest, epl_v1_src, epl_v1_ainv_ch, epl_v1_asnd_ch;

  int     offset;

  proto_item *ti=NULL;

  proto_tree *epl_v1_tree=NULL;

  if(tvb_captured_length(tvb) < 3){

    /* Not enough data for an EPL_V1 header; don't try to interpret it */

    return false;

  }

  offset = 0;

  /* make entries in Protocol column and Info column on summary display */

  col_set_str(pinfo->cinfo, COL_PROTOCOL, "EPL_V1");

  col_clear(pinfo->cinfo, COL_INFO);

  /* get service type */

  epl_v1_service = tvb_get_uint8(tvb, EPL_V1_SERVICE_OFFSET) & 0x7F;

  /* get destination */

  epl_v1_dest = tvb_get_uint8(tvb, EPL_V1_DEST_OFFSET);

  /* get source */

  epl_v1_src = tvb_get_uint8(tvb, EPL_V1_SRC_OFFSET);

  /* choose the right string for "Info" column */

  switch(epl_v1_service){

  case EPL_V1_SOC:

    col_add_fstr(pinfo->cinfo, COL_INFO, "SoC    dest = %3d   src = %3d   ", epl_v1_dest, epl_v1_src);

    break;

  case EPL_V1_EOC:

    col_add_fstr(pinfo->cinfo, COL_INFO, "EoC    dest = %3d   src = %3d   ", epl_v1_dest, epl_v1_src);

    break;

  case EPL_V1_PREQ:

    col_add_fstr(pinfo->cinfo, COL_INFO, "PReq   dest = %3d   src = %3d   ", epl_v1_dest, epl_v1_src);

    break;

  case EPL_V1_PRES:

    col_add_fstr(pinfo->cinfo, COL_INFO, "PRes   dest = %3d   src = %3d   ", epl_v1_dest, epl_v1_src);

    break;

  case EPL_V1_AINV:

    /* get AInv channel */

    epl_v1_ainv_ch = tvb_get_uint8(tvb, EPL_V1_AINV_CHANNEL_OFFSET);

    col_add_fstr(pinfo->cinfo, COL_INFO, "AInv   dest = %3d   src = %3d   channel = %s   ",

      epl_v1_dest, epl_v1_src, val_to_str(pinfo->pool, epl_v1_ainv_ch, ainv_channel_number_vals, "unknown Channel (%d)"));

    break;

  case EPL_V1_ASND:

    /* get ASnd channel */

    epl_v1_asnd_ch = tvb_get_uint8(tvb, EPL_V1_ASND_CHANNEL_OFFSET);

    col_add_fstr(pinfo->cinfo, COL_INFO, "ASnd   dest = %3d   src = %3d   channel = %s   ",

      epl_v1_dest, epl_v1_src, val_to_str(pinfo->pool, epl_v1_asnd_ch, asnd_channel_number_vals, "unknown Channel (%d)"));

    break;

  default:     /* no valid EPL packet */

    return false;

  }

  if(tree){

    /* create display subtree for the protocol */

    ti = proto_tree_add_item(tree, proto_epl_v1, tvb, 0, -1, ENC_NA);

    epl_v1_tree = proto_item_add_subtree(ti, ett_epl_v1);

  }

  proto_tree_add_item(epl_v1_tree, hf_epl_v1_service, tvb, offset, 1, ENC_LITTLE_ENDIAN);

  offset += 1;

  proto_tree_add_item(epl_v1_tree, hf_epl_v1_dest, tvb, offset, 1, ENC_LITTLE_ENDIAN);

  offset += 1;

  proto_tree_add_item(epl_v1_tree, hf_epl_v1_src, tvb, offset, 1, ENC_LITTLE_ENDIAN);

  offset += 1;

  /* The rest of the epl_v1 dissector depends on the message type  */

  switch(epl_v1_service){

  case EPL_V1_SOC:

    offset = dissect_epl_v1_soc(epl_v1_tree, tvb, offset);

    break;

  case EPL_V1_EOC:

    offset = dissect_epl_v1_eoc(epl_v1_tree, tvb, offset);

    break;

  case EPL_V1_PREQ:

    offset = dissect_epl_v1_preq(epl_v1_tree, tvb, offset);

    break;

  case EPL_V1_PRES:

    offset = dissect_epl_v1_pres(epl_v1_tree, tvb,  offset);

    break;

  case EPL_V1_AINV:

    offset = dissect_epl_v1_ainv(epl_v1_tree, tvb,  offset);

    break;

  case EPL_V1_ASND:

    offset = dissect_epl_v1_asnd(epl_v1_tree, tvb,  offset);

    break;

  default: /* not a valid MessageType - can't dissect any further. */

    return false;

  }

  return offset;

}

void

proto_register_epl_v1(void)

{

  static hf_register_info hf[] = {

    /* Common data fields (same for all message types) */

    { &hf_epl_v1_service,

      { "Service", "epl_v1.service",

        FT_UINT8, BASE_DEC, VALS(service_vals), 0x7F,

        NULL, HFILL }

    },

    { &hf_epl_v1_dest,

      { "Destination", "epl_v1.dest",

        FT_UINT8, BASE_DEC, NULL, 0x00,

        NULL, HFILL }

    },

    { &hf_epl_v1_src,

      { "Source", "epl_v1.src",

        FT_UINT8, BASE_DEC, NULL, 0x00,

        NULL, HFILL }

    },

    /* SoC data fields*/

    { &hf_epl_v1_soc_ms,

      { "MS (Multiplexed Slot)", "epl_v1.soc.ms",

        FT_UINT8, BASE_DEC, NULL, 0x80,

        NULL, HFILL }

    },

    { &hf_epl_v1_soc_ps,

      { "PS (Prescaled Slot)", "epl_v1.soc.ps",

        FT_UINT8, BASE_DEC, NULL, 0x40,

        NULL, HFILL }

    },

    { &hf_epl_v1_soc_net_command,

      { "Net Command", "epl_v1.soc.netcommand",

        FT_UINT16, BASE_DEC, VALS(soc_net_command_vals), 0x0,

        NULL, HFILL }

    },

    { &hf_epl_v1_soc_net_time,

      { "Net Time", "epl_v1.soc.nettime",

        FT_UINT32, BASE_DEC, NULL, 0x0,

        NULL, HFILL }

    },

    { &hf_epl_v1_soc_powerlink_cycle_time,

      { "Cycle Time", "epl_v1.soc.cycletime",

        FT_UINT32, BASE_DEC, NULL, 0x0,

        NULL, HFILL }

    },

    { &hf_epl_v1_soc_net_command_parameter,

      { "Net Command Parameter", "epl_v1.soc.netcommand.parameter",

        FT_BYTES, BASE_NONE, NULL, 0x0,

        NULL, HFILL }

    },

    /* PReq data fields*/

    { &hf_epl_v1_preq_ms,

      { "MS (Multiplexed Slot)", "epl_v1.preq.ms",

        FT_UINT8, BASE_DEC, NULL, 0x20,

        NULL, HFILL }

    },

    { &hf_epl_v1_preq_rd,

      { "RD (Ready)", "epl_v1.preq.rd",

        FT_UINT8, BASE_DEC, NULL, 0x01,

        NULL, HFILL }

    },

    { &hf_epl_v1_preq_poll_size_out,

      { "Poll Size OUT", "epl_v1.preq.pollsize",

        FT_UINT16, BASE_DEC, NULL, 0x00,

        NULL, HFILL }

    },

    { &hf_epl_v1_preq_out_data,

      { "OUT Data", "epl_v1.preq.data",

        FT_BYTES, BASE_NONE, NULL, 0x00,

        NULL, HFILL }

    },

    /* PRes data fields*/

    { &hf_epl_v1_pres_ms,

      { "MS (Multiplexed)", "epl_v1.pres.ms",

        FT_UINT8, BASE_DEC, NULL, 0x20,

        NULL, HFILL }

    },

    { &hf_epl_v1_pres_ex,

      { "EX (Exception)", "epl_v1.pres.ex",

        FT_UINT8, BASE_DEC, NULL, 0x10,

        NULL, HFILL }

    },

    { &hf_epl_v1_pres_rs,

      { "RS (Request to Send)", "epl_v1.pres.rs",

        FT_UINT8, BASE_DEC, NULL, 0x08,

        NULL, HFILL }

    },

    { &hf_epl_v1_pres_wa,

      { "WA (Warning)", "epl_v1.pres.wa",

        FT_UINT8, BASE_DEC, NULL, 0x04,

        NULL, HFILL }

    },

    { &hf_epl_v1_pres_er,

      { "ER (Error)", "epl_v1.pres.er",

        FT_UINT8, BASE_DEC, NULL, 0x02,

        NULL, HFILL }

    },

    { &hf_epl_v1_pres_rd,

      { "RD (Ready)", "epl_v1.pres.rd",

        FT_UINT8, BASE_DEC, NULL, 0x01,

        NULL, HFILL }

    },

    { &hf_epl_v1_pres_poll_size_in,

      { "Poll Size IN", "epl_v1.pres.pollsize",

        FT_UINT16, BASE_DEC, NULL, 0x00,

        NULL, HFILL }

    },

    { &hf_epl_v1_pres_in_data,

      { "IN Data", "epl_v1.pres.data",

        FT_BYTES, BASE_NONE, NULL, 0x00,

        NULL, HFILL }

    },

    /* EoC data fields*/

    { &hf_epl_v1_eoc_net_command,

      { "Net Command", "epl_v1.eoc.netcommand",

        FT_UINT16, BASE_DEC, VALS(eoc_net_command_vals), 0x00,

        NULL, HFILL }

    },

    { &hf_epl_v1_eoc_net_command_parameter,

      { "Net Command Parameter", "epl_v1.soa.netcommand.parameter",

        FT_BYTES, BASE_NONE, NULL, 0x00,

        NULL, HFILL }

    },

    /* AInv data fields*/

    { &hf_epl_v1_ainv_channel,

      { "Channel", "epl_v1.ainv.channel",

        FT_UINT8, BASE_DEC, VALS(ainv_channel_number_vals), 0x00,

        NULL, HFILL }

    },

    /* ASnd data fields*/

    { &hf_epl_v1_asnd_channel,

      { "Channel", "epl_v1.asnd.channel",

        FT_UINT8, BASE_DEC, VALS(asnd_channel_number_vals), 0x00,

        NULL, HFILL }

    },

    { &hf_epl_v1_asnd_size,

      { "Size", "epl_v1.asnd.size",

        FT_UINT16, BASE_DEC, NULL, 0x00,

        NULL, HFILL }

    },

    { &hf_epl_v1_asnd_data,

      { "Data", "epl_v1.asnd.data",

        FT_BYTES, BASE_NONE, NULL, 0x00,

        NULL, HFILL }

    },

    { &hf_epl_v1_asnd_node_id,

      { "NodeID", "epl_v1.asnd.node_id",

        FT_UINT32, BASE_DEC, NULL, 0x00,

        NULL, HFILL }

    },

    { &hf_epl_v1_asnd_hardware_revision,

      { "Hardware Revision", "epl_v1.asnd.hardware.revision",

        FT_UINT32, BASE_DEC, NULL, 0x00,

        NULL, HFILL }

    },

    { &hf_epl_v1_asnd_firmware_version,

      { "Firmware Version", "epl_v1.asnd.firmware.version",

        FT_UINT32, BASE_DEC, NULL, 0x00,

        NULL, HFILL }

    },

    { &hf_epl_v1_asnd_device_variant,

      { "Device Variant", "epl_v1.asnd.device.variant",

        FT_UINT32, BASE_DEC, NULL, 0x00,

        NULL, HFILL }

    },

    { &hf_epl_v1_asnd_poll_in_size,

      { "Poll IN Size", "epl_v1.asnd.poll.in.size",

        FT_UINT32, BASE_DEC, NULL, 0x00,

        NULL, HFILL }

    },

    { &hf_epl_v1_asnd_poll_out_size,

      { "Poll OUT Size", "epl_v1.asnd.poll.out.size",

        FT_UINT32, BASE_DEC, NULL, 0x00,

        NULL, HFILL }

    },

  };

  /* Setup protocol subtree array */

  static int *ett[] = {

    &ett_epl_v1,

  };

  /* Register the protocol name and description */

  proto_epl_v1 = proto_register_protocol("ETHERNET Powerlink V1.0", "EPL_V1", "epl_v1");

  /* Required function calls to register the header fields and subtrees used */

  proto_register_field_array(proto_epl_v1, hf, array_length(hf));

  proto_register_subtree_array(ett, array_length(ett));

  epl_v1_handle = register_dissector("epl_v1", dissect_epl_v1, proto_epl_v1);

}

void

proto_reg_handoff_epl_v1(void)

{

  dissector_add_uint("ethertype", ETHERTYPE_EPL_V1, epl_v1_handle);

}

/*

 * Editor modelines  -  https://www.wireshark.org/tools/modelines.html

 *

 * Local variables:

 * c-basic-offset: 8

 * tab-width: 8

 * indent-tabs-mode: t

 * End:

 *

 * vi: set shiftwidth=8 tabstop=8 noexpandtab:

 * :indentSize=8:tabSize=8:noTabs=false:

 */