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wireshark/epan/dissectors/packet-epl.c

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From David Buechi: Add support for the ETHERNET Powerlink protocol svn path=/trunk/; revision=18998
2006-08-22 19:55:31 +00:00
/* packet-epl.c
* Routines for "Ethernet Powerlink 2.0" dissection
* (ETHERNET Powerlink V2.0 Communication Profile Specification Draft Standard Version 1.0.0)
*
* Copyright (c) 2006: Zurich University of Applied Sciences Winterthur (ZHW)
* Institute of Embedded Systems (InES)
* http://ines.zhwin.ch
*
* - Dominic B<EFBFBD>chaz <bdo@zhwin.ch>
* - Damir Bursic <bum@zhwin.ch>
* - David B<EFBFBD>chi <bhd@zhwin.ch>
*
*
* $Id$
*
* A plugin for:
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1999 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gmodule.h>
#include <epan/emem.h>
#include <epan/packet.h>
#include <epan/etypes.h>
#include "packet-epl.h"
/* Initialize the protocol and registered fields */
static gint proto_epl = -1;
static gint hf_epl_mtyp = -1;
static gint hf_epl_dest = -1;
static gint hf_epl_src = -1;
static gint hf_epl_soc_mc = -1;
static gint hf_epl_soc_ps = -1;
static gint hf_epl_soc_nettime = -1;
static gint hf_epl_soc_relativetime = -1;
static gint hf_epl_preq_ms = -1;
static gint hf_epl_preq_ea = -1;
static gint hf_epl_preq_rd = -1;
static gint hf_epl_preq_pdov = -1;
static gint hf_epl_preq_size = -1;
static gint hf_epl_preq_pl = -1;
static gint hf_epl_pres_stat_ms = -1;
static gint hf_epl_pres_stat_cs = -1;
static gint hf_epl_pres_ms = -1;
static gint hf_epl_pres_en = -1;
static gint hf_epl_pres_rd = -1;
static gint hf_epl_pres_pr = -1;
static gint hf_epl_pres_rs = -1;
static gint hf_epl_pres_pdov = -1;
static gint hf_epl_pres_size = -1;
static gint hf_epl_pres_pl = -1;
static gint hf_epl_soa_stat_ms = -1;
static gint hf_epl_soa_stat_cs = -1;
static gint hf_epl_soa_ea = -1;
static gint hf_epl_soa_er = -1;
static gint hf_epl_soa_svid = -1;
static gint hf_epl_soa_svtg = -1;
static gint hf_epl_soa_eplv = -1;
static gint hf_epl_asnd_svid = -1;
static gint hf_epl_asnd_data = -1;
/*IdentResponse*/
static gint hf_epl_asnd_identresponse_en = -1;
static gint hf_epl_asnd_identresponse_ec = -1;
static gint hf_epl_asnd_identresponse_pr = -1;
static gint hf_epl_asnd_identresponse_rs = -1;
static gint hf_epl_asnd_identresponse_stat_ms = -1;
static gint hf_epl_asnd_identresponse_stat_cs = -1;
static gint hf_epl_asnd_identresponse_ever = -1;
static gint hf_epl_asnd_identresponse_feat = -1;
static gint hf_epl_asnd_identresponse_mtu = -1;
static gint hf_epl_asnd_identresponse_pis = -1;
static gint hf_epl_asnd_identresponse_pos = -1;
static gint hf_epl_asnd_identresponse_rst = -1;
static gint hf_epl_asnd_identresponse_dt = -1;
static gint hf_epl_asnd_identresponse_vid = -1;
static gint hf_epl_asnd_identresponse_productcode = -1;
static gint hf_epl_asnd_identresponse_rno = -1;
static gint hf_epl_asnd_identresponse_sno = -1;
static gint hf_epl_asnd_identresponse_vex1 = -1;
static gint hf_epl_asnd_identresponse_vcd = -1;
static gint hf_epl_asnd_identresponse_vct = -1;
static gint hf_epl_asnd_identresponse_ad = -1;
static gint hf_epl_asnd_identresponse_at = -1;
static gint hf_epl_asnd_identresponse_ipa = -1;
static gint hf_epl_asnd_identresponse_snm = -1;
static gint hf_epl_asnd_identresponse_gtw = -1;
static gint hf_epl_asnd_identresponse_hn = -1;
static gint hf_epl_asnd_identresponse_vex2 = -1;
/*StatusResponse*/
static gint hf_epl_asnd_statusresponse_en = -1;
static gint hf_epl_asnd_statusresponse_ec = -1;
static gint hf_epl_asnd_statusresponse_pr = -1;
static gint hf_epl_asnd_statusresponse_rs = -1;
static gint hf_epl_asnd_statusresponse_stat_ms = -1;
static gint hf_epl_asnd_statusresponse_stat_cs = -1;
static gint hf_epl_asnd_statusresponse_seb = -1;
/*StaticErrorBitField */
static gint hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit0 = -1;
static gint hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit1 = -1;
static gint hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit2 = -1;
static gint hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit3 = -1;
static gint hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit4 = -1;
static gint hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit5 = -1;
static gint hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit7 = -1;
static gint hf_epl_asnd_statusresponse_seb_devicespecific_err = -1;
/*List of Errors/Events*/
static gint hf_epl_asnd_statusresponse_el = -1;
static gint hf_epl_asnd_statusresponse_el_entry = -1;
static gint hf_epl_asnd_statusresponse_el_entry_type = -1;
static gint hf_epl_asnd_statusresponse_el_entry_type_profile = -1;
static gint hf_epl_asnd_statusresponse_el_entry_type_mode = -1;
static gint hf_epl_asnd_statusresponse_el_entry_type_bit14 = -1;
static gint hf_epl_asnd_statusresponse_el_entry_type_bit15 = -1;
static gint hf_epl_asnd_statusresponse_el_entry_code = -1;
static gint hf_epl_asnd_statusresponse_el_entry_time = -1;
static gint hf_epl_asnd_statusresponse_el_entry_add = -1;
/*NMTRequest*/
static gint hf_epl_asnd_nmtrequest_rcid = -1;
static gint hf_epl_asnd_nmtrequest_rct = -1;
static gint hf_epl_asnd_nmtrequest_rcd = -1;
/*NMTCommand*/
static gint hf_epl_asnd_nmtcommand_cid = -1;
static gint hf_epl_asnd_nmtcommand_cdat = -1;
static gint hf_epl_asnd_nmtcommand_nmtnetparameterset_mtu = -1;
static gint hf_epl_asnd_nmtcommand_nmtnethostnameset_hn = -1;
static gint hf_epl_asnd_nmtcommand_nmtflusharpentry_nid = -1;
static gint hf_epl_asnd_nmtcommand_nmtpublishtime_dt = -1;
/*Asynchronuous SDO Sequence Layer*/
static gint hf_epl_asnd_sdo_seq_receive_sequence_number = -1;
static gint hf_epl_asnd_sdo_seq_receive_con = -1;
static gint hf_epl_asnd_sdo_seq_send_sequence_number = -1;
static gint hf_epl_asnd_sdo_seq_send_con = -1;
/*Asynchronuous SDO Command Layer*/
static gint hf_epl_asnd_sdo_cmd_transaction_id = -1;
static gint hf_epl_asnd_sdo_cmd_response = -1;
static gint hf_epl_asnd_sdo_cmd_abort = -1;
static gint hf_epl_asnd_sdo_cmd_segmentation = -1;
static gint hf_epl_asnd_sdo_cmd_command_id = -1;
static gint hf_epl_asnd_sdo_cmd_segment_size = -1;
static gint hf_epl_asnd_sdo_cmd_data_size = -1;
static gint hf_epl_asnd_sdo_cmd_abort_code = -1;
static gint hf_epl_asnd_sdo_cmd_abort_flag = -1;
static gint hf_epl_asnd_sdo_cmd_segmentation_flag = -1;
static gint hf_epl_asnd_sdo_cmd_cmd_valid_test = -1;
static gint hf_epl_asnd_sdo_actual_command_id = -1;
static gint hf_epl_asnd_sdo_cmd_write_by_index_index = -1;
static gint hf_epl_asnd_sdo_cmd_write_by_index_subindex = -1;
static gint hf_epl_asnd_sdo_cmd_write_by_index_data = -1;
static gint hf_epl_asnd_sdo_cmd_write_by_index_response = -1;
static gint hf_epl_asnd_sdo_cmd_read_by_index_index = -1;
static gint hf_epl_asnd_sdo_cmd_read_by_index_subindex = -1;
static gint hf_epl_asnd_sdo_cmd_read_by_index_data = -1;
static gint hf_epl_asnd_sdo_cmd_read_by_index_response = -1;
static gint hf_epl_asnd_sdo_actual_segment_size = -1;
static gint hf_epl_asnd_sdo_actual_payload_size_read = -1;
/* Initialize the subtree pointers */
static gint ett_epl = -1;
static gint ett_epl_seb = -1;
static gint ett_epl_el = -1;
static gint ett_epl_el_entry = -1;
static gint ett_epl_el_entry_type = -1;
static gint ett_epl_sdo_entry_type = -1;
/* Define the tap for epl */
/*static gint epl_tap = -1;*/
/* Code to actually dissect the packets */
static gboolean
dissect_epl(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
guint8 epl_mtyp, epl_src, epl_dest, epl_soa_svid, epl_asnd_svid;
const gchar *src_str, *dest_str, *src_str_abbr, *dest_str_abbr;
gchar *info_str;
/* static epl_info_t mi; */
/* Set up structures needed to add the protocol subtree and manage it */
proto_item *ti;
proto_tree *epl_tree, *epl_src_item, *epl_dest_item;
gint offset = 0;
info_str = ep_alloc(200);
info_str[0] = 0;
if (tvb_length_remaining(tvb, offset) < 3)
{
/* Not enough data for an EPL header; don't try to interpret it */
return FALSE;
}
/* Make entries in Protocol column and Info column on summary display */
if (check_col(pinfo->cinfo, COL_PROTOCOL))
{
col_set_str(pinfo->cinfo, COL_PROTOCOL, "EPL");
}
/* Get message type */
epl_mtyp = tvb_get_guint8(tvb, EPL_MTYP_OFFSET) & 0x7F;
/* tap */
/* mi.epl_mtyp = epl_mtyp;
tap_queue_packet(epl_tap, pinfo, &mi);
*/
/* Get Destination */
epl_dest = tvb_get_guint8(tvb, EPL_DEST_OFFSET);
dest_str = decode_epl_address(epl_dest);
dest_str_abbr = decode_epl_address_abbrev(epl_dest);
/* Get Source */
epl_src = tvb_get_guint8(tvb, EPL_SRC_OFFSET);
src_str = decode_epl_address(epl_src);
src_str_abbr = decode_epl_address_abbrev(epl_src);
/* Choose the right string for "Info" column (message type) */
switch (epl_mtyp)
{
case EPL_SOC:
g_snprintf(info_str, 200, "SoC dest = %3d%s src = %3d%s ", epl_dest, dest_str_abbr, epl_src, src_str_abbr);
break;
case EPL_PREQ:
g_snprintf(info_str, 200, "PReq dest = %3d%s src = %3d%s ", epl_dest, dest_str_abbr, epl_src, src_str_abbr);
break;
case EPL_PRES:
g_snprintf(info_str, 200, "PRes dest = %3d%s src = %3d%s ", epl_dest, dest_str_abbr, epl_src, src_str_abbr);
break;
case EPL_SOA:
epl_soa_svid = tvb_get_guint8(tvb, EPL_SOA_SVID_OFFSET); /* Get RequestedServiceID */
g_snprintf(info_str, 200, "SoA dest = %3d%s src = %3d%s %s ",
epl_dest, dest_str_abbr, epl_src, src_str_abbr, match_strval(epl_soa_svid, soa_svid_vals));
break;
case EPL_ASND:
epl_asnd_svid = tvb_get_guint8(tvb, EPL_ASND_SVID_OFFSET); /* Get ServiceID */
g_snprintf(info_str, 200, "ASnd dest = %3d%s src = %3d%s %s ",
epl_dest, dest_str_abbr, epl_src, src_str_abbr, match_strval(epl_asnd_svid, asnd_svid_vals));
break;
default: /* no valid EPL packet */
return FALSE;
}
if (check_col(pinfo->cinfo, COL_INFO))
{
col_clear(pinfo->cinfo, COL_INFO);
}
if (check_col(pinfo->cinfo, COL_INFO))
{
col_add_str(pinfo->cinfo, COL_INFO, info_str);
}
if (tree)
{
/* create display subtree for the protocol */
ti = proto_tree_add_item(tree, proto_epl, tvb, 0, -1, TRUE);
epl_tree = proto_item_add_subtree(ti, ett_epl);
proto_tree_add_item(epl_tree,
hf_epl_mtyp, tvb, offset, 1, TRUE);
offset += 1;
epl_dest_item = proto_tree_add_item(epl_tree, hf_epl_dest, tvb, offset, 1, TRUE);
proto_item_append_text (epl_dest_item, dest_str);
offset += 1;
epl_src_item = proto_tree_add_item(epl_tree, hf_epl_src, tvb, offset, 1, TRUE);
proto_item_append_text (epl_src_item, src_str);
offset += 1;
/* The rest of the epl-dissector depends on the message type */
switch (epl_mtyp)
{
case EPL_SOC:
offset = dissect_epl_soc(epl_tree, tvb, offset);
break;
case EPL_PREQ:
offset = dissect_epl_preq(epl_tree, tvb, offset);
break;
case EPL_PRES:
offset = dissect_epl_pres(epl_tree, tvb, epl_src, offset);
break;
case EPL_SOA:
offset = dissect_epl_soa(epl_tree, tvb, epl_src, offset);
break;
case EPL_ASND:
offset = dissect_epl_asnd(tree, epl_tree, tvb, epl_src, offset);
break;
default: /* no valid EPL packet */
return FALSE;
}
}
return TRUE;
}
const gchar*
decode_epl_address (guchar adr)
{
const gchar *addr_str;
addr_str = match_strval(adr, addr_str_vals);
if (addr_str != NULL)
{
return addr_str;
}
else
{
if (( adr < EPL_MN_NODEID) && (adr > EPL_INVALID_NODEID))
{
return addr_str_cn;
}
else
{
return addr_str_res;
}
}
}
/* Get the abbreviation for an EPL NodeID */
const gchar*
decode_epl_address_abbrev (guchar adr)
{
const gchar *addr_str;
addr_str = match_strval(adr, addr_str_abbr_vals);
if (addr_str != NULL)
{
return addr_str;
}
else
{
if (( adr < EPL_MN_NODEID) && (adr > EPL_INVALID_NODEID))
{
return addr_str_abbr_cn;
}
else
{
return addr_str_abbr_res;
}
}
}
gint
dissect_epl_soc(proto_tree *epl_tree, tvbuff_t *tvb, gint offset)
{
nstime_t nettime;
offset += 1;
proto_tree_add_item(epl_tree, hf_epl_soc_mc, tvb, offset, 1, TRUE);
proto_tree_add_item(epl_tree, hf_epl_soc_ps, tvb, offset, 1, TRUE);
offset += 2;
nettime.secs = tvb_get_letohl(tvb, offset);
nettime.nsecs = tvb_get_letohl(tvb, offset+4);
proto_tree_add_time_format_value(epl_tree, hf_epl_soc_nettime,
tvb, offset, 8, &nettime, "%s", abs_time_to_str(&nettime));
offset += 8;
proto_tree_add_item(epl_tree, hf_epl_soc_relativetime, tvb, offset, 8, TRUE);
offset += 8;
return offset;
}
gint
dissect_epl_preq(proto_tree *epl_tree, tvbuff_t *tvb, gint offset)
{
guint16 len;
guint8 pdoversion;
offset += 1;
proto_tree_add_item(epl_tree, hf_epl_preq_ms, tvb, offset, 1, TRUE);
proto_tree_add_item(epl_tree, hf_epl_preq_ea, tvb, offset, 1, TRUE);
proto_tree_add_item(epl_tree, hf_epl_preq_rd, tvb, offset, 1, TRUE);
offset += 2;
pdoversion = tvb_get_guint8(tvb, offset);
proto_tree_add_string_format(epl_tree, hf_epl_preq_pdov, tvb, offset,
1, "", "PDOVersion %d.%d", hi_nibble(pdoversion), lo_nibble(pdoversion));
offset += 2;
proto_tree_add_item(epl_tree, hf_epl_preq_size, tvb, offset, 2, TRUE);
/* get size of payload */
len = tvb_get_letohs(tvb, offset);
offset += 2;
if (len > 0)
{
proto_tree_add_item(epl_tree, hf_epl_preq_pl, tvb, offset, len, TRUE);
}
offset += len;
return offset;
}
gint
dissect_epl_pres(proto_tree *epl_tree, tvbuff_t *tvb, guint8 epl_src, gint offset)
{
guint16 len;
guint8 pdoversion;
if (epl_src != EPL_MN_NODEID) /* check if the sender is CN or MN */
{
proto_tree_add_item(epl_tree, hf_epl_pres_stat_cs, tvb, offset, 1, TRUE);
}
else /* MN */
{
proto_tree_add_item(epl_tree, hf_epl_pres_stat_ms, tvb, offset, 1, TRUE);
}
offset += 1;
proto_tree_add_item(epl_tree, hf_epl_pres_ms, tvb, offset, 1, TRUE);
proto_tree_add_item(epl_tree, hf_epl_pres_en, tvb, offset, 1, TRUE);
proto_tree_add_item(epl_tree, hf_epl_pres_rd, tvb, offset, 1, TRUE);
offset += 1;
proto_tree_add_item(epl_tree, hf_epl_pres_pr, tvb, offset, 1, TRUE);
proto_tree_add_item(epl_tree, hf_epl_pres_rs, tvb, offset, 1, TRUE);
offset += 1;
pdoversion = tvb_get_guint8(tvb, offset);
proto_tree_add_string_format(epl_tree, hf_epl_pres_pdov, tvb, offset,
1, "", "PDOVersion %d.%d", hi_nibble(pdoversion), lo_nibble(pdoversion));
offset += 2;
proto_tree_add_item(epl_tree, hf_epl_pres_size, tvb, offset, 2, TRUE);
/* get size of payload */
len = tvb_get_letohs(tvb, offset);
offset += 2;
if (len > 0)
{
proto_tree_add_item(epl_tree, hf_epl_pres_pl, tvb, offset, len, TRUE);
}
offset += len;
return offset;
}
gint
dissect_epl_soa(proto_tree *epl_tree, tvbuff_t *tvb, guint8 epl_src, gint offset)
{
guint8 eplversion;
if (epl_src != EPL_MN_NODEID) /* check if CN or MN */
{
proto_tree_add_item(epl_tree, hf_epl_soa_stat_cs, tvb, offset, 1, TRUE);
}
else /* MN */
{
proto_tree_add_item(epl_tree, hf_epl_soa_stat_ms, tvb, offset, 1, TRUE);
}
offset += 1;
proto_tree_add_item(epl_tree, hf_epl_soa_ea, tvb, offset, 1, TRUE);
proto_tree_add_item(epl_tree, hf_epl_soa_er, tvb, offset, 1, TRUE);
offset += 2;
proto_tree_add_item(epl_tree, hf_epl_soa_svid, tvb, offset, 1, TRUE);
offset += 1;
proto_tree_add_item(epl_tree, hf_epl_soa_svtg, tvb, offset, 1, TRUE);
offset += 1;
eplversion = tvb_get_guint8(tvb, offset);
proto_tree_add_string_format(epl_tree, hf_epl_soa_eplv, tvb, offset,
1, "", "EPLVersion %d.%d", hi_nibble(eplversion), lo_nibble(eplversion));
offset += 1;
return offset;
}
gint
dissect_epl_asnd(proto_tree *tree, proto_tree *epl_tree, tvbuff_t *tvb, guint8 epl_src, gint offset)
{
guint16 svid;
proto_tree_add_item(epl_tree, hf_epl_asnd_svid, tvb, offset, 1, TRUE);
/* get ServiceID of payload */
svid = tvb_get_guint8(tvb, offset);
offset += 1;
switch (svid)
{
case EPL_ASND_IDENTRESPONSE:
offset = dissect_epl_asnd_ires(epl_tree, tvb, epl_src, offset);
break;
case EPL_ASND_STATUSRESPONSE:
offset = dissect_epl_asnd_sres(tree, epl_tree, tvb, epl_src, offset);
break;
case EPL_ASND_NMTREQUEST:
offset = dissect_epl_asnd_nmtreq(epl_tree, tvb, offset);
break;
case EPL_ASND_NMTCOMMAND:
offset = dissect_epl_asnd_nmtcmd(epl_tree, tvb, offset);
break;
case EPL_ASND_SDO:
offset = dissect_epl_asnd_sdo(epl_tree, tvb, offset);
break;
}
return offset;
}
gint
dissect_epl_asnd_nmtreq(proto_tree *epl_tree, tvbuff_t *tvb, gint offset)
{
proto_tree_add_item(epl_tree, hf_epl_asnd_nmtrequest_rcid, tvb, offset, 1, TRUE);
offset += 1;
proto_tree_add_item(epl_tree, hf_epl_asnd_nmtrequest_rct, tvb, offset, 1, TRUE);
offset += 1;
proto_tree_add_item(epl_tree, hf_epl_asnd_nmtrequest_rcd, tvb, offset, -1, TRUE);
return offset;
}
gint
dissect_epl_asnd_nmtcmd(proto_tree *epl_tree, tvbuff_t *tvb, gint offset)
{
guint8 epl_asnd_nmtcommand_cid;
proto_tree_add_item(epl_tree, hf_epl_asnd_nmtcommand_cid, tvb, offset, 1, TRUE);
epl_asnd_nmtcommand_cid = tvb_get_guint8(tvb, offset);
offset += 2;
switch (epl_asnd_nmtcommand_cid)
{
case EPL_ASND_NMTCOMMAND_NMTNETHOSTNAMESET:
proto_tree_add_item(epl_tree, hf_epl_asnd_nmtcommand_nmtnethostnameset_hn, tvb, offset, 32, TRUE);
offset += 32;
break;
case EPL_ASND_NMTCOMMAND_NMTFLUSHARPENTRY:
proto_tree_add_item(epl_tree, hf_epl_asnd_nmtcommand_nmtflusharpentry_nid, tvb, offset, 1, TRUE);
offset += 1;
break;
case EPL_ASND_NMTCOMMAND_NMTPUBLISHTIME:
proto_tree_add_item(epl_tree, hf_epl_asnd_nmtcommand_nmtpublishtime_dt, tvb, offset, 6, TRUE);
offset += 6;
break;
default:
proto_tree_add_item(epl_tree, hf_epl_asnd_nmtcommand_cdat, tvb, offset, -1, TRUE);
}
return offset;
}
gint
dissect_epl_asnd_ires(proto_tree *epl_tree, tvbuff_t *tvb, guint8 epl_src, gint offset)
{
guint8 eplversion;
guint32 epl_asnd_identresponse_ipa, epl_asnd_identresponse_snm, epl_asnd_identresponse_gtw;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_en, tvb, offset, 1, TRUE);
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_ec, tvb, offset, 1, TRUE);
offset += 1;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_pr, tvb, offset, 1, TRUE);
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_rs, tvb, offset, 1, TRUE);
offset += 1;
if (epl_src != EPL_MN_NODEID) /* check if CN or MN */
{
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_stat_cs, tvb, offset, 1, TRUE);
}
else /* MN */
{
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_stat_ms, tvb, offset, 1, TRUE);
}
offset += 2;
eplversion = tvb_get_guint8(tvb, offset);
proto_tree_add_string_format(epl_tree, hf_epl_asnd_identresponse_ever, tvb, offset,
1, "", "EPLVersion %d.%d", hi_nibble(eplversion), lo_nibble(eplversion));
offset += 2;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_feat, tvb, offset, 4, TRUE);
offset += 4;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_mtu, tvb, offset, 2, TRUE);
offset += 2;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_pis, tvb, offset, 2, TRUE);
offset += 2;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_pos, tvb, offset, 2, TRUE);
offset += 2;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_rst, tvb, offset, 4, TRUE);
offset += 6;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_dt, tvb, offset, 4, TRUE);
offset += 4;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_vid, tvb, offset, 4, TRUE);
offset += 4;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_productcode, tvb, offset, 4, TRUE);
offset += 4;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_rno, tvb, offset, 4, TRUE);
offset += 4;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_sno, tvb, offset, 4, TRUE);
offset += 4;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_vex1, tvb, offset, 8, TRUE);
offset += 8;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_vcd, tvb, offset, 4, TRUE);
offset += 4;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_vct, tvb, offset, 4, TRUE);
offset += 4;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_ad, tvb, offset, 4, TRUE);
offset += 4;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_at, tvb, offset, 4, TRUE);
offset += 4;
epl_asnd_identresponse_ipa = tvb_get_ntohl(tvb, offset);
proto_tree_add_ipv4(epl_tree , hf_epl_asnd_identresponse_ipa, tvb, offset, 4, epl_asnd_identresponse_ipa);
offset += 4;
epl_asnd_identresponse_snm = tvb_get_ntohl(tvb, offset);
proto_tree_add_ipv4(epl_tree , hf_epl_asnd_identresponse_snm, tvb, offset, 4, epl_asnd_identresponse_snm);
offset += 4;
epl_asnd_identresponse_gtw = tvb_get_ntohl(tvb, offset);
proto_tree_add_ipv4(epl_tree , hf_epl_asnd_identresponse_gtw, tvb, offset, 4, epl_asnd_identresponse_gtw);
offset += 4;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_hn, tvb, offset, 32, TRUE);
offset += 32;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_vex2, tvb, offset, 48, TRUE);
offset += 48;
return offset;
}
gint
dissect_epl_asnd_sres(proto_tree *tree, proto_tree *epl_tree, tvbuff_t *tvb, guint8 epl_src, gint offset)
{
proto_item *ti_seb, *ti_el, *ti_el_entry, *ti_el_entry_type;
proto_tree *epl_seb_tree, *epl_el_tree, *epl_el_entry_tree, *epl_el_entry_type_tree;
guint number_of_entries, cnt; /* used for dissection of ErrorCodeList */
proto_tree_add_item(epl_tree, hf_epl_asnd_statusresponse_en, tvb, offset, 1, TRUE);
proto_tree_add_item(epl_tree, hf_epl_asnd_statusresponse_ec, tvb, offset, 1, TRUE);
offset += 1;
proto_tree_add_item(epl_tree, hf_epl_asnd_statusresponse_pr, tvb, offset, 1, TRUE);
proto_tree_add_item(epl_tree, hf_epl_asnd_statusresponse_rs, tvb, offset, 1, TRUE);
offset += 1;
if (epl_src != EPL_MN_NODEID) /* check if CN or MN */
{
proto_tree_add_item(epl_tree, hf_epl_asnd_statusresponse_stat_cs, tvb, offset, 1, TRUE);
}
else /* MN */
{
proto_tree_add_item(epl_tree, hf_epl_asnd_statusresponse_stat_ms, tvb, offset, 1, TRUE);
}
offset += 4;
/* Subtree for the static errorr bitfield */
if (tree)
{
ti_seb = proto_tree_add_text(epl_tree, tvb, offset, 8, "StaticErrorBitfield");
epl_seb_tree = proto_item_add_subtree(ti_seb, ett_epl_seb);
proto_tree_add_item(epl_seb_tree, hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit0, tvb, offset, 1, TRUE);
proto_tree_add_item(epl_seb_tree, hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit1, tvb, offset, 1, TRUE);
proto_tree_add_item(epl_seb_tree, hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit2, tvb, offset, 1, TRUE);
proto_tree_add_item(epl_seb_tree, hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit3, tvb, offset, 1, TRUE);
proto_tree_add_item(epl_seb_tree, hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit4, tvb, offset, 1, TRUE);
proto_tree_add_item(epl_seb_tree, hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit5, tvb, offset, 1, TRUE);
proto_tree_add_item(epl_seb_tree, hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit7, tvb, offset, 1, TRUE);
offset += 2;
proto_tree_add_item(epl_seb_tree, hf_epl_asnd_statusresponse_seb_devicespecific_err, tvb,offset, 8, TRUE);
offset += 8;
}
/* List of errors / events */
if (tree)
{
/* get the number of entries in the error code list*/
number_of_entries = (tvb_length(tvb)-offset)/20;
ti_el = proto_tree_add_text(epl_tree, tvb, offset, -1, "ErrorCodeList: %d entries", number_of_entries);
epl_el_tree = proto_item_add_subtree(ti_el, ett_epl_el);
/*Dissect the whole Error List (display each entry)*/
for (cnt = 0; cnt<number_of_entries; cnt++)
{
if (tree)
{
ti_el_entry = proto_tree_add_text(ti_el, tvb, offset, 20, "Entry %d", cnt+1);
epl_el_entry_tree = proto_item_add_subtree(ti_el_entry, ett_epl_el_entry);
/*Entry Type*/
if (tree)
{
ti_el_entry_type = proto_tree_add_item(ti_el_entry,
hf_epl_asnd_statusresponse_el_entry_type, tvb, offset, 2, TRUE);
epl_el_entry_type_tree = proto_item_add_subtree(ti_el_entry_type,
ett_epl_el_entry_type);
proto_tree_add_item(epl_el_entry_type_tree,
hf_epl_asnd_statusresponse_el_entry_type_profile, tvb, offset, 2, TRUE);
proto_tree_add_item(epl_el_entry_type_tree,
hf_epl_asnd_statusresponse_el_entry_type_mode, tvb, offset, 2, TRUE);
proto_tree_add_item(epl_el_entry_type_tree,
hf_epl_asnd_statusresponse_el_entry_type_bit14, tvb, offset, 2, TRUE);
proto_tree_add_item(epl_el_entry_type_tree,
hf_epl_asnd_statusresponse_el_entry_type_bit15, tvb, offset, 2, TRUE);
}
offset += 2;
proto_tree_add_item(epl_el_entry_tree, hf_epl_asnd_statusresponse_el_entry_code, tvb, offset, 2, TRUE);
offset += 2;
proto_tree_add_item(epl_el_entry_tree, hf_epl_asnd_statusresponse_el_entry_time, tvb, offset, 8, TRUE);
offset += 8;
proto_tree_add_item(epl_el_entry_tree, hf_epl_asnd_statusresponse_el_entry_add, tvb, offset, 8, TRUE);
offset += 8;
}
}
}
return offset;
}
gint
dissect_epl_asnd_sdo(proto_tree *epl_tree, tvbuff_t *tvb, gint offset)
{
offset = dissect_epl_sdo_sequence(epl_tree, tvb, offset);
offset = dissect_epl_sdo_command(epl_tree, tvb, offset);
return offset;
}
gint
dissect_epl_sdo_sequence(proto_tree *epl_tree, tvbuff_t *tvb, gint offset)
{
/* Asynchronuous SDO Sequence Layer */
proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_seq_receive_sequence_number, tvb, offset, 1, TRUE);
proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_seq_receive_con, tvb, offset, 1, TRUE);
offset += 1;
proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_seq_send_sequence_number, tvb, offset, 1, TRUE);
proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_seq_send_con, tvb, offset, 1, TRUE);
offset += 3;
return offset;
}
gint
dissect_epl_sdo_command(proto_tree *epl_tree, tvbuff_t *tvb, gint offset)
{
guint8 command_id;
gboolean segmented, response, abort;
offset += 1;
segmented = FALSE;
segmented = tvb_get_guint8(tvb, offset + 1) & EPL_ASND_SDO_CMD_SEGMENTATION_FILTER;
response = tvb_get_guint8(tvb, offset + 1) & EPL_ASND_SDO_CMD_RESPONSE_FILTER;
abort = tvb_get_guint8(tvb, offset + 1) & EPL_ASND_SDO_CMD_ABORT_FILTER;
command_id = tvb_get_guint8(tvb, offset + 2);
/* test if CommandField == empty */
if (command_id != 0)
{
proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_transaction_id, tvb, offset, 1, TRUE);
offset += 1;
proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_response, tvb, offset, 1, TRUE);
proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_abort, tvb, offset, 1, TRUE);
if (abort)
{
/* if AbortBit is set then print AbortMessage */
proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_abort_code, tvb, offset, 4, TRUE);
}
proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_segmentation, tvb, offset, 1, TRUE);
offset += 1;
proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_command_id, tvb, offset, 1, TRUE);
offset += 1;
proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_segment_size, tvb, offset, 2, TRUE);
offset += 4;
if (segmented)
{
/* if SegemenationBit is set then print DataSize */
proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_data_size, tvb, offset, 4, TRUE);
segmented = TRUE;
offset += 4;
}
switch (command_id)
{
case EPL_ASND_SDO_COMMAND_WRITE_BY_INDEX:
offset = dissect_epl_sdo_command_write_by_index(epl_tree, tvb, offset, segmented, response);
break;
case EPL_ASND_SDO_COMMAND_READ_BY_INDEX:
offset = dissect_epl_sdo_command_read_by_index(epl_tree, tvb, offset, response);
break;
default:
return FALSE;
}
}
return offset;
}
gint
dissect_epl_sdo_command_write_by_index(proto_tree *epl_tree, tvbuff_t *tvb, gint offset, gboolean segmented, gboolean response)
{
gint size;
if (segmented)
{
/* TODO: print payload size... */
offset += 4;
}
if (!response)
{ /* request */
proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_write_by_index_index, tvb, offset, 2, TRUE);
offset += 2;
proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_write_by_index_subindex, tvb, offset, 1, TRUE);
offset += 2;
size = tvb_length_remaining(tvb, offset);
proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_write_by_index_data, tvb, offset, size, TRUE);
offset += size;
}
else
{
/* response, no payload */
}
return offset;
}
gint
dissect_epl_sdo_command_read_by_index(proto_tree *epl_tree, tvbuff_t *tvb, gint offset, gboolean response)
{
gint size;
if (!response)
{ /* request */
proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_read_by_index_index, tvb, offset, 2, TRUE);
offset += 2;
proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_read_by_index_subindex, tvb, offset, 1, TRUE);
offset += 1;
}
else
{ /* response */
size = tvb_length_remaining(tvb, offset);
proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_read_by_index_data, tvb, offset, size, TRUE);
offset += size;
}
return offset;
}
/* Register the protocol with Wireshark */
void
proto_register_epl(void)
{
static hf_register_info hf[] = {
/* Common data fields (same for all message types) */
{ &hf_epl_mtyp, { "MessageType", "epl.mtyp", FT_UINT8, BASE_DEC, VALS(mtyp_vals), 0x7F, "", HFILL }},
{ &hf_epl_dest, { "Destination", "epl.dest", FT_UINT8, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_src, { "Source", "epl.src", FT_UINT8, BASE_DEC, NULL, 0x00, "", HFILL }},
/* SoC data fields*/
{ &hf_epl_soc_mc, { "MC (Multiplexed Cycle Completed)", "epl.soc.mc", FT_UINT8, BASE_DEC, NULL, 0x80, "", HFILL }},
{ &hf_epl_soc_ps, { "PS (Prescaled Slot)", "epl.soc.ps", FT_UINT8, BASE_DEC, NULL, 0x40, "", HFILL }},
{ &hf_epl_soc_nettime, { "NetTime", "epl.soc.nettime", FT_ABSOLUTE_TIME, BASE_DEC, NULL, 0x0, "", HFILL }},
{ &hf_epl_soc_relativetime,{ "RelativeTime", "epl.soc.relativetime", FT_UINT64, BASE_DEC, NULL, 0x0, "", HFILL }},
/* PReq data fields*/
{ &hf_epl_preq_ms, { "MS (Multiplexed Slot)", "epl.preq.ms", FT_UINT8, BASE_DEC, NULL, 0x20, "", HFILL }},
{ &hf_epl_preq_ea, { "EA (Exception Acknowledge)", "epl.preq.ea", FT_UINT8, BASE_DEC, NULL, 0x04, "", HFILL }},
{ &hf_epl_preq_rd, { "RD (Ready)", "epl.preq.rd", FT_UINT8, BASE_DEC, NULL, 0x01, "", HFILL }},
{ &hf_epl_preq_pdov, { "PDOVersion", "epl.preq.pdov", FT_STRING, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_preq_size, { "Size", "epl.preq.size", FT_UINT16, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_preq_pl, { "Payload", "epl.preq.pl", FT_BYTES, BASE_HEX, NULL, 0x00, "", HFILL }},
/* PRes data fields*/
{ &hf_epl_pres_stat_ms, { "NMTStatus", "epl.pres.stat", FT_UINT8, BASE_DEC, VALS(epl_nmt_cs_vals),0x00, "", HFILL }},
{ &hf_epl_pres_stat_cs, { "NMTStatus", "epl.pres.stat", FT_UINT8, BASE_DEC, VALS(epl_nmt_ms_vals),0x00, "", HFILL }},
{ &hf_epl_pres_ms, { "MS (Multiplexed Slot)", "epl.pres.ms", FT_UINT8, BASE_DEC, NULL, 0x20, "", HFILL }},
{ &hf_epl_pres_en, { "EN (Exception New)", "epl.pres.en", FT_UINT8, BASE_DEC, NULL, 0x10, "", HFILL }},
{ &hf_epl_pres_rd, { "RD (Ready)", "epl.pres.rd", FT_UINT8, BASE_DEC, NULL, 0x01, "", HFILL }},
{ &hf_epl_pres_pr, { "PR (Priority)", "epl.pres.pr", FT_UINT8, BASE_DEC, VALS(epl_pr_vals), 0x38, "", HFILL }},
{ &hf_epl_pres_rs, { "RS (RequestToSend)", "epl.pres.rs", FT_UINT8, BASE_DEC, NULL, 0x07, "", HFILL }},
{ &hf_epl_pres_pdov, { "PDOVersion", "epl.pres.pdov", FT_STRING, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_pres_size, { "Size", "epl.pres.size", FT_UINT16, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_pres_pl, { "Payload", "epl.pres.pl", FT_BYTES, BASE_HEX, NULL, 0x00, "", HFILL }},
/* SoA data fields*/
{ &hf_epl_soa_stat_ms, { "NMTStatus", "epl.soa.stat", FT_UINT8, BASE_DEC, VALS(epl_nmt_ms_vals),0x00, "", HFILL }},
{ &hf_epl_soa_stat_cs, { "NMTStatus", "epl.soa.stat", FT_UINT8, BASE_DEC, VALS(epl_nmt_cs_vals),0x00, "", HFILL }},
{ &hf_epl_soa_ea, { "EA (Exception Acknowledge)", "epl.soa.ea", FT_UINT8, BASE_DEC, NULL, 0x04, "", HFILL }},
{ &hf_epl_soa_er, { "ER (Exception Reset)", "epl.soa.er", FT_UINT8, BASE_DEC, NULL, 0x02, "", HFILL }},
{ &hf_epl_soa_svid, { "RequestedServiceID", "epl.soa.svid", FT_UINT8, BASE_DEC, VALS(soa_svid_vals), 0x00, "", HFILL }},
{ &hf_epl_soa_svtg, { "RequestedServiceTarget", "epl.soa.svtg", FT_UINT8, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_soa_eplv, { "EPLVersion", "epl.soa.eplv", FT_STRING, BASE_DEC, NULL, 0x00, "", HFILL }},
/* ASnd header */
{ &hf_epl_asnd_svid, { "ServiceID", "epl.asnd.svid", FT_UINT8, BASE_DEC, VALS(asnd_svid_vals), 0x00,"", HFILL }},
{ &hf_epl_asnd_data, { "Data", "epl.asnd.data", FT_BYTES, BASE_HEX, NULL, 0x00,"", HFILL }},
/* ASnd-->IdentResponse */
{ &hf_epl_asnd_identresponse_en, { "EN (Exception New)", "epl.asnd.ires.en", FT_UINT8, BASE_DEC, NULL, 0x10, "", HFILL }},
{ &hf_epl_asnd_identresponse_ec, { "EC (Exception Clear)", "epl.asnd.ires.ec", FT_UINT8, BASE_DEC, NULL, 0x08, "", HFILL }},
{ &hf_epl_asnd_identresponse_pr, { "PR (Priority)", "epl.asnd.ires.pr", FT_UINT8, BASE_DEC, VALS(epl_pr_vals), 0x38, "", HFILL }},
{ &hf_epl_asnd_identresponse_rs, { "RS (RequestToSend)", "epl.asnd.ires.rs", FT_UINT8, BASE_DEC, NULL, 0x07, "", HFILL }},
{ &hf_epl_asnd_identresponse_stat_ms, { "NMTStatus", "epl.asnd.ires.state", FT_UINT8, BASE_DEC, VALS(epl_nmt_ms_vals),0x00, "", HFILL }},
{ &hf_epl_asnd_identresponse_stat_cs, { "NMTStatus", "epl.asnd.ires.state", FT_UINT8, BASE_DEC, VALS(epl_nmt_cs_vals),0x00, "", HFILL }},
{ &hf_epl_asnd_identresponse_ever, { "EPLVersion", "epl.asnd.ires.eplver", FT_STRING, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_identresponse_feat, { "FeatureFlags", "epl.asnd.ires.features", FT_UINT32, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_identresponse_mtu, { "MTU", "epl.asnd.ires.mtu", FT_UINT16, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_identresponse_pis, { "PollInSize", "epl.asnd.ires.pollinsize", FT_UINT16, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_identresponse_pos, { "PollOutSize", "epl.asnd.ires.polloutsizes", FT_UINT16, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_identresponse_rst, { "ResponseTime", "epl.asnd.ires.resptime", FT_UINT32, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_identresponse_dt, { "DeviceType", "epl.asnd.ires.devicetype", FT_UINT32, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_identresponse_vid, { "VendorId", "epl.asnd.ires.vendorid", FT_UINT32, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_identresponse_productcode,{ "ProductCode", "epl.asnd.ires.productcode", FT_UINT32, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_identresponse_rno, { "RevisionNumber", "epl.asnd.ires.revisionno", FT_UINT32, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_identresponse_sno, { "SerialNumber", "epl.asnd.ires.serialno", FT_UINT32, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_identresponse_vex1, { "VendorSpecificExtension1", "epl.asnd.ires.vendorext1", FT_UINT64, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_identresponse_vcd, { "VerifyConfigurationDate", "epl.asnd.ires.confdate", FT_UINT32, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_identresponse_vct, { "VerifyConfigurationTime", "epl.asnd.ires.conftime", FT_UINT32, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_identresponse_ad, { "applicationSwDate", "epl.asnd.ires.appswdate", FT_UINT32, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_identresponse_at, { "applicationSwTime", "epl.asnd.ires.appswtime", FT_UINT32, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_identresponse_ipa, { "IPAddress", "epl.asnd.ires.ip", FT_IPv4, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_identresponse_snm, { "SubnetMask", "epl.asnd.ires.subnet", FT_IPv4, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_identresponse_gtw, { "DefaultGateway", "epl.asnd.ires.gateway", FT_IPv4, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_identresponse_hn, { "HostName", "epl.asnd.ires.hostname", FT_STRING, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_identresponse_vex2, { "VendorSpecificExtension2", "epl.asnd.ires.vendorext2", FT_BYTES, BASE_DEC, NULL, 0x00, "", HFILL }},
/* ASnd-->StatusResponse */
{ &hf_epl_asnd_statusresponse_en, { "EN (Exception New)", "epl.asnd.sres.en", FT_UINT8, BASE_DEC, NULL, 0x10, "", HFILL }},
{ &hf_epl_asnd_statusresponse_ec, { "EC (Exception Clear)", "epl.asnd.sres.ec", FT_UINT8, BASE_DEC, NULL, 0x08, "", HFILL }},
{ &hf_epl_asnd_statusresponse_pr, { "PR (Priority)", "epl.asnd.sres.pr", FT_UINT8, BASE_DEC, VALS(epl_pr_vals), 0x38, "", HFILL }},
{ &hf_epl_asnd_statusresponse_rs, { "RS (RequestToSend)", "epl.asnd.sres.rs", FT_UINT8, BASE_DEC, NULL, 0x07, "", HFILL }},
{ &hf_epl_asnd_statusresponse_stat_ms, { "NMTStatus", "epl.asnd.sres.stat", FT_UINT8, BASE_DEC, VALS(epl_nmt_ms_vals), 0x00, "", HFILL }},
{ &hf_epl_asnd_statusresponse_stat_cs, { "NMTStatus", "epl.asnd.sres.stat", FT_UINT8, BASE_DEC, VALS(epl_nmt_cs_vals), 0x00, "", HFILL }},
{ &hf_epl_asnd_statusresponse_seb, { "StaticErrorBitField", "epl.asnd.sres.seb", FT_BYTES, BASE_HEX, NULL, 0x00, "", HFILL }},
/*StaticErrorBitField */
{ &hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit0, { "Generic error", "epl.asnd.res.seb.bit0", FT_UINT8, BASE_DEC, NULL, 0x01, "", HFILL }},
{ &hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit1, { "Current", "epl.asnd.res.seb.bit1", FT_UINT8, BASE_DEC, NULL, 0x02, "", HFILL }},
{ &hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit2, { "Voltage", "epl.asnd.res.seb.bit2", FT_UINT8, BASE_DEC, NULL, 0x04, "", HFILL }},
{ &hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit3, { "Temperature", "epl.asnd.res.seb.bit3", FT_UINT8, BASE_DEC, NULL, 0x08, "", HFILL }},
{ &hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit4, { "Communication error", "epl.asnd.res.seb.bit4", FT_UINT8, BASE_DEC, NULL, 0x10, "", HFILL }},
{ &hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit5, { "Device profile specific", "epl.asnd.res.seb.bit5", FT_UINT8, BASE_DEC, NULL, 0x20, "", HFILL }},
{ &hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit7, { "Manufacturer specific", "epl.asnd.res.seb.bit7", FT_UINT8, BASE_DEC, NULL, 0x80, "", HFILL }},
{ &hf_epl_asnd_statusresponse_seb_devicespecific_err, { "Device profile specific", "epl.asnd.res.seb.devicespecific_err",FT_BYTES, BASE_DEC,NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_statusresponse_el, { "ErrorsCodeList", "epl.asnd.sres.el", FT_BYTES, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_statusresponse_el_entry, { "Entry", "epl.asnd.sres.el.entry", FT_BYTES, BASE_DEC, NULL, 0x00, "", HFILL }},
/*List of Errors/Events*/
{ &hf_epl_asnd_statusresponse_el_entry_type, { "Entry Type", "epl.asnd.sres.el.entry.type", FT_UINT16, BASE_HEX, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_statusresponse_el_entry_type_profile, { "Profile", "epl.asnd.sres.el.entry.type.profile", FT_UINT16, BASE_DEC, NULL, 0x0FFF, "", HFILL }},
{ &hf_epl_asnd_statusresponse_el_entry_type_mode, { "Mode", "epl.asnd.sres.el.entry.type.mode", FT_UINT16, BASE_DEC, NULL, 0x3000, "", HFILL }},
{ &hf_epl_asnd_statusresponse_el_entry_type_bit14, { "Bit14", "epl.asnd.sres.el.entry.type.bit14", FT_UINT16, BASE_DEC, NULL, 0x4000, "", HFILL }},
{ &hf_epl_asnd_statusresponse_el_entry_type_bit15, { "Bit15", "epl.asnd.sres.el.entry.type.bit15", FT_UINT16, BASE_DEC, NULL, 0x8000, "", HFILL }},
{ &hf_epl_asnd_statusresponse_el_entry_code, { "Error Code", "epl.asnd.sres.el.entry.code", FT_UINT16, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_statusresponse_el_entry_time, { "Time Stamp", "epl.asnd.sres.el.entry.time", FT_UINT64, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_statusresponse_el_entry_add, { "Additional Information", "epl.asnd.sres.el.entry.add", FT_UINT64, BASE_DEC, NULL, 0x00, "", HFILL }},
/* ASnd-->NMTRequest */
{ &hf_epl_asnd_nmtrequest_rcid, { "NMTRequestedCommandID", "epl.asnd.nmtrequest.rcid", FT_UINT8, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_nmtrequest_rct, { "NMTRequestedCommandTarget", "epl.asnd.nmtrequest.rct", FT_UINT8, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_nmtrequest_rcd, { "NMTRequestedCommandData", "epl.asnd.nmtrequest.rcd", FT_BYTES, BASE_DEC, NULL, 0x00, "", HFILL }},
/* ASnd-->NMTCommand */
{ &hf_epl_asnd_nmtcommand_cid, { "NMTCommandId", "epl.asnd.nmtcommand.cid", FT_UINT8, BASE_DEC, VALS(asnd_cid_vals), 0x00, "", HFILL }},
{ &hf_epl_asnd_nmtcommand_cdat, { "NMTCommandData", "epl.asnd.nmtcommand.cdat", FT_BYTES, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_nmtcommand_nmtnethostnameset_hn, { "HostName", "epl.asnd.nmtcommand.nmtnethostnameset.hn", FT_BYTES, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_nmtcommand_nmtflusharpentry_nid, { "NodeID", "epl.asnd.nmtcommand.nmtflusharpentry.nid", FT_UINT8, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_nmtcommand_nmtpublishtime_dt, { "DateTime", "epl.asnd.nmtcommand.nmtpublishtime.dt", FT_BYTES, BASE_DEC, NULL, 0x00, "", HFILL }},
/* ASnd-->SDO */
{ &hf_epl_asnd_sdo_seq_receive_sequence_number, { "ReceiveSequenceNumber", "epl.asnd.sdo.seq.receive.sequence.number", FT_UINT8, BASE_DEC, NULL, 0xfc, "", HFILL }},
{ &hf_epl_asnd_sdo_seq_receive_con, { "ReceiveCon", "epl.asnd.sdo.seq.receive.con", FT_UINT8, BASE_DEC, VALS(epl_sdo_receive_con_vals), 0x03, "", HFILL }},
{ &hf_epl_asnd_sdo_seq_send_sequence_number, { "SendSequenceNumber", "epl.asnd.sdo.seq.send.sequence.number", FT_UINT8, BASE_DEC, NULL, 0xfc, "", HFILL }},
{ &hf_epl_asnd_sdo_seq_send_con, { "SendCon", "epl.asnd.sdo.seq.send.con", FT_UINT8, BASE_DEC, VALS(epl_sdo_send_con_vals), 0x03, "", HFILL }},
{ &hf_epl_asnd_sdo_cmd_transaction_id, { "SDO Transaction ID", "epl.asnd.sdo.cmd.transaction.id", FT_UINT8, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_sdo_cmd_response, { "SDO Response", "epl.asnd.sdo.cmd.response", FT_UINT8, BASE_DEC, VALS(epl_sdo_asnd_cmd_response), 0x80, "", HFILL }},
{ &hf_epl_asnd_sdo_cmd_abort, { "SDO Abort", "epl.asnd.sdo.cmd.abort", FT_UINT8, BASE_DEC, VALS(epl_sdo_asnd_cmd_abort), 0x40, "", HFILL }},
{ &hf_epl_asnd_sdo_cmd_segmentation, { "SDO Segmentation", "epl.asnd.sdo.cmd.segmentation", FT_UINT8, BASE_DEC, VALS(epl_sdo_asnd_cmd_segmentation), 0x30, "", HFILL }},
{ &hf_epl_asnd_sdo_cmd_command_id, { "SDO Command ID", "epl.asnd.sdo.cmd.command.id", FT_UINT8, BASE_DEC, VALS(epl_sdo_asnd_commands), 0x00, "", HFILL }},
{ &hf_epl_asnd_sdo_cmd_segment_size, { "SDO Segment size", "epl.asnd.sdo.cmd.segment.size", FT_UINT8, BASE_DEC, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_sdo_cmd_data_size, { "SDO Data size", "epl.asnd.sdo.cmd.data.size", FT_UINT8, BASE_DEC, NULL, 0x00, "", HFILL } },
{ &hf_epl_asnd_sdo_cmd_abort_code, { "SDO Transfer Abort", "epl.asnd.sdo.cmd.abort.code", FT_UINT8, BASE_HEX, VALS(sdo_cmd_abort_code), 0x00, "", HFILL }},
{ &hf_epl_asnd_sdo_cmd_write_by_index_index, { "SDO Write by Index, Index", "epl.asnd.sdo.cmd.write.by.index.index", FT_UINT16, BASE_HEX, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_sdo_cmd_write_by_index_subindex, { "SDO Write by Index, SubIndex", "epl.asnd.sdo.cmd.write.by.index.subindex", FT_UINT8, BASE_HEX, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_sdo_cmd_read_by_index_index, { "SDO Read by Index, Index", "epl.asnd.sdo.cmd.read.by.index.index", FT_UINT16, BASE_HEX, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_sdo_cmd_read_by_index_subindex, { "SDO Read by Index, SubIndex", "epl.asnd.sdo.cmd.read.by.index.subindex", FT_UINT8, BASE_HEX, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_sdo_cmd_write_by_index_data, { "Payload", "epl.asnd.sdo.cmd.write.by.index.data", FT_BYTES, BASE_HEX, NULL, 0x00, "", HFILL }},
{ &hf_epl_asnd_sdo_cmd_read_by_index_data, { "Payload", "epl.asnd.sdo.cmd.read.by.index.data", FT_BYTES, BASE_HEX, NULL, 0x00, "", HFILL }},
};
/* Setup protocol subtree array */
static gint *ett[] = {
&ett_epl,
&ett_epl_seb,
&ett_epl_el,
&ett_epl_el_entry,
&ett_epl_el_entry_type,
&ett_epl_sdo_entry_type,
};
/* Register the protocol name and description */
proto_epl = proto_register_protocol("ETHERNET Powerlink v2", "EPL", "epl");
/* Required function calls to register the header fields and subtrees used */
proto_register_field_array(proto_epl, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
/* tap-registration */
/* epl_tap = register_tap("epl");*/
}
void
proto_reg_handoff_epl(void)
{
dissector_handle_t epl_handle;
epl_handle = create_dissector_handle(dissect_epl, proto_epl);
dissector_add("ethertype", ETHERTYPE_EPL_V2, epl_handle);
}