/* 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 Bechaz * - Damir Bursic * - David Buechi * * Copyright (c) 2007: SYS TEC electronic GmbH * http://www.systec-electronic.com * - Daniel Krueger * * $Id$ * * A plugin for: * Wireshark - Network traffic analyzer * By Gerald Combs * 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 #include #include #include #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_feat_bit0 = -1; static gint hf_epl_asnd_identresponse_feat_bit1 = -1; static gint hf_epl_asnd_identresponse_feat_bit2 = -1; static gint hf_epl_asnd_identresponse_feat_bit3 = -1; static gint hf_epl_asnd_identresponse_feat_bit4 = -1; static gint hf_epl_asnd_identresponse_feat_bit5 = -1; static gint hf_epl_asnd_identresponse_feat_bit6 = -1; static gint hf_epl_asnd_identresponse_feat_bit7 = -1; static gint hf_epl_asnd_identresponse_feat_bit8 = -1; static gint hf_epl_asnd_identresponse_feat_bit9 = -1; static gint hf_epl_asnd_identresponse_feat_bitA = -1; static gint hf_epl_asnd_identresponse_feat_bitB = -1; static gint hf_epl_asnd_identresponse_feat_bitC = -1; static gint hf_epl_asnd_identresponse_feat_bitD = -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_profile = -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_feat = -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; /* preference whether or not display the SoC flags in info column */ gboolean show_soc_flags = FALSE; /* 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; const gchar *src_str, *dest_str; gboolean udpencap = FALSE; /* static epl_info_t mi; */ /* Set up structures needed to add the protocol subtree and manage it */ proto_item *ti; proto_tree *epl_tree = NULL, *epl_src_item, *epl_dest_item; gint offset = 0; if (tvb_length(tvb) < 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 (pinfo->ethertype == ETHERTYPE_EPL_V2) { if (check_col(pinfo->cinfo, COL_PROTOCOL)) { col_set_str(pinfo->cinfo, COL_PROTOCOL, "EPL"); } udpencap = FALSE; } else { /* guess that this is an EPL frame encapsulated into an UDP datagram */ if (check_col(pinfo->cinfo, COL_PROTOCOL)) { col_set_str(pinfo->cinfo, COL_PROTOCOL, "EPL/UDP"); } udpencap = TRUE; } /* 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); /* Get Source */ epl_src = tvb_get_guint8(tvb, EPL_SRC_OFFSET); src_str = decode_epl_address(epl_src); if (check_col(pinfo->cinfo, COL_INFO)) { col_clear(pinfo->cinfo, COL_INFO); /* Choose the right string for "Info" column (message type) */ switch (epl_mtyp) { case EPL_SOC: /* source and destination NodeID are fixed according to the spec */ col_set_str(pinfo->cinfo, COL_INFO, "SoC "); break; case EPL_PREQ: /* show only destination NodeID, because source is always 240 (MN) */ col_add_fstr(pinfo->cinfo, COL_INFO, "PReq dst = %3d ", epl_dest); break; case EPL_PRES: /* show only source NodeID, because destination is always 255 (broadcast) */ col_add_fstr(pinfo->cinfo, COL_INFO, "PRes src = %3d ", epl_src); break; case EPL_SOA: /* source and destination NodeID are fixed according to the spec */ col_set_str(pinfo->cinfo, COL_INFO, "SoA "); break; case EPL_ASND: if (udpencap) { col_set_str(pinfo->cinfo, COL_INFO, "ASnd "); } else { col_add_fstr(pinfo->cinfo, COL_INFO, "ASnd src = %3d dst = %3d ", epl_src, epl_dest); } break; default: /* no valid EPL packet */ return FALSE; } } 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; if (tree && !udpencap) { epl_dest_item = proto_tree_add_item(epl_tree, hf_epl_dest, tvb, offset, 1, TRUE); proto_item_append_text (epl_dest_item, "%s", 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, "%s", src_str); offset += 1; } else { offset += 2; } /* The rest of the EPL dissector depends on the message type */ switch (epl_mtyp) { case EPL_SOC: offset = dissect_epl_soc(epl_tree, tvb, pinfo, offset); break; case EPL_PREQ: offset = dissect_epl_preq(epl_tree, tvb, pinfo, offset); break; case EPL_PRES: offset = dissect_epl_pres(epl_tree, tvb, pinfo, epl_src, offset); break; case EPL_SOA: offset = dissect_epl_soa(epl_tree, tvb, pinfo, epl_src, offset); break; case EPL_ASND: offset = dissect_epl_asnd(epl_tree, tvb, pinfo, 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, packet_info *pinfo, gint offset) { nstime_t nettime; guint8 flags; offset += 1; flags = tvb_get_guint8(tvb, offset); if (epl_tree) { proto_tree_add_boolean(epl_tree, hf_epl_soc_mc, tvb, offset, 1, flags); proto_tree_add_boolean(epl_tree, hf_epl_soc_ps, tvb, offset, 1, flags); } offset += 2; if (show_soc_flags && check_col(pinfo->cinfo, COL_INFO)) { col_append_fstr(pinfo->cinfo, COL_INFO, "MC = %d PS = %d", ((EPL_SOC_MC_MASK & flags) >> 7), ((EPL_SOC_PS_MASK & flags) >> 6)); } if (epl_tree) { 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, packet_info *pinfo, gint offset) { guint16 len; guint8 pdoversion; guint8 flags; offset += 1; flags = tvb_get_guint8(tvb, offset); if (epl_tree) { proto_tree_add_boolean(epl_tree, hf_epl_preq_ms, tvb, offset, 1, flags); proto_tree_add_boolean(epl_tree, hf_epl_preq_ea, tvb, offset, 1, flags); proto_tree_add_boolean(epl_tree, hf_epl_preq_rd, tvb, offset, 1, flags); } offset += 2; pdoversion = tvb_get_guint8(tvb, offset); if (epl_tree) { 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; /* get size of payload */ len = tvb_get_letohs(tvb, offset); if (epl_tree) { proto_tree_add_uint(epl_tree, hf_epl_preq_size, tvb, offset, 2, len); } offset += 2; if (epl_tree && (len > 0)) { proto_tree_add_item(epl_tree, hf_epl_preq_pl, tvb, offset, len, TRUE); } offset += len; if (check_col(pinfo->cinfo, COL_INFO)) { col_append_fstr(pinfo->cinfo, COL_INFO, "RD = %d size = %d ver = %d.%d", (EPL_PDO_RD_MASK & flags), len, hi_nibble(pdoversion), lo_nibble(pdoversion)); } return offset; } gint dissect_epl_pres(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, guint8 epl_src, gint offset) { guint16 len; guint8 pdoversion; guint8 flags; if (epl_tree) { 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; flags = tvb_get_guint8(tvb, offset); if (epl_tree) { proto_tree_add_boolean(epl_tree, hf_epl_pres_ms, tvb, offset, 1, flags); proto_tree_add_boolean(epl_tree, hf_epl_pres_en, tvb, offset, 1, flags); proto_tree_add_boolean(epl_tree, hf_epl_pres_rd, tvb, offset, 1, flags); } offset += 1; if (epl_tree) { 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); if (epl_tree) { 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; /* get size of payload */ len = tvb_get_letohs(tvb, offset); if (epl_tree) { proto_tree_add_uint(epl_tree, hf_epl_pres_size, tvb, offset, 2, len); } offset += 2; if (epl_tree && (len > 0)) { proto_tree_add_item(epl_tree, hf_epl_pres_pl, tvb, offset, len, TRUE); } offset += len; if (check_col(pinfo->cinfo, COL_INFO)) { col_append_fstr(pinfo->cinfo, COL_INFO, "RD = %d size = %d ver = %d.%d", (EPL_PDO_RD_MASK & flags), len, hi_nibble(pdoversion), lo_nibble(pdoversion)); } return offset; } gint dissect_epl_soa(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, guint8 epl_src, gint offset) { guint8 eplversion; guint8 svid, target; if (epl_tree) { 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; if (epl_tree) { 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; svid = tvb_get_guint8(tvb, offset); if (epl_tree) { proto_tree_add_uint(epl_tree, hf_epl_soa_svid, tvb, offset, 1, svid); } offset += 1; target = tvb_get_guint8(tvb, offset); if (epl_tree) { proto_tree_add_uint(epl_tree, hf_epl_soa_svtg, tvb, offset, 1, target); } offset += 1; if (svid != EPL_SOA_NOSERVICE && check_col(pinfo->cinfo, COL_INFO)) { col_append_fstr(pinfo->cinfo, COL_INFO, "tgt = %3d %s", target, val_to_str(svid, soa_svid_vals, "Unknown (%d)")); } if (epl_tree) { 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 *epl_tree, tvbuff_t *tvb, packet_info *pinfo, guint8 epl_src, gint offset) { guint8 svid; /* get ServiceID of payload */ svid = tvb_get_guint8(tvb, offset); if (epl_tree) { proto_tree_add_uint(epl_tree, hf_epl_asnd_svid, tvb, offset, 1, svid); } offset += 1; if (check_col(pinfo->cinfo, COL_INFO)) { col_append_fstr(pinfo->cinfo, COL_INFO, "%s ", val_to_str(svid, asnd_svid_vals, "Unknown (%d)")); } switch (svid) { case EPL_ASND_IDENTRESPONSE: offset = dissect_epl_asnd_ires(epl_tree, tvb, pinfo, epl_src, offset); break; case EPL_ASND_STATUSRESPONSE: offset = dissect_epl_asnd_sres(epl_tree, tvb, pinfo, epl_src, offset); break; case EPL_ASND_NMTREQUEST: offset = dissect_epl_asnd_nmtreq(epl_tree, tvb, pinfo, offset); break; case EPL_ASND_NMTCOMMAND: offset = dissect_epl_asnd_nmtcmd(epl_tree, tvb, pinfo, offset); break; case EPL_ASND_SDO: offset = dissect_epl_asnd_sdo(epl_tree, tvb, pinfo, offset); break; } return offset; } gint dissect_epl_asnd_nmtreq(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset) { guint8 rcid; rcid = tvb_get_guint8(tvb, offset); if (epl_tree) { proto_tree_add_uint(epl_tree, hf_epl_asnd_nmtrequest_rcid, tvb, offset, 1, rcid); 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); } if (check_col(pinfo->cinfo, COL_INFO)) { col_append_str(pinfo->cinfo, COL_INFO, val_to_str(rcid, asnd_cid_vals, "Unknown (%d)")); } return offset; } gint dissect_epl_asnd_nmtcmd(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset) { guint8 epl_asnd_nmtcommand_cid; epl_asnd_nmtcommand_cid = tvb_get_guint8(tvb, offset); if (epl_tree) { proto_tree_add_uint(epl_tree, hf_epl_asnd_nmtcommand_cid, tvb, offset, 1, epl_asnd_nmtcommand_cid); 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); } } if (check_col(pinfo->cinfo, COL_INFO)) { col_append_str(pinfo->cinfo, COL_INFO, val_to_str(epl_asnd_nmtcommand_cid, asnd_cid_vals, "Unknown (%d)")); } return offset; } gint dissect_epl_asnd_ires(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, guint8 epl_src, gint offset) { guint8 eplversion; guint16 profile,additional; guint32 epl_asnd_identresponse_ipa, epl_asnd_identresponse_snm, epl_asnd_identresponse_gtw; guint32 epl_asnd_ires_feat, device_type; proto_item *ti_feat; proto_tree *epl_feat_tree; device_type = tvb_get_letohl(tvb, offset + 22); profile = tvb_get_letohs(tvb, offset + 22); if (epl_tree) { 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; /* decode FeatureFlags */ epl_asnd_ires_feat = tvb_get_letohl(tvb, offset); ti_feat = proto_tree_add_uint(epl_tree, hf_epl_asnd_identresponse_feat, tvb, offset, 4, epl_asnd_ires_feat); epl_feat_tree = proto_item_add_subtree(ti_feat, ett_epl_feat); proto_tree_add_boolean(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit0, tvb, offset, 4, epl_asnd_ires_feat); proto_tree_add_boolean(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit1, tvb, offset, 4, epl_asnd_ires_feat); proto_tree_add_boolean(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit2, tvb, offset, 4, epl_asnd_ires_feat); proto_tree_add_boolean(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit3, tvb, offset, 4, epl_asnd_ires_feat); proto_tree_add_boolean(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit4, tvb, offset, 4, epl_asnd_ires_feat); proto_tree_add_boolean(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit5, tvb, offset, 4, epl_asnd_ires_feat); proto_tree_add_boolean(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit6, tvb, offset, 4, epl_asnd_ires_feat); proto_tree_add_boolean(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit7, tvb, offset, 4, epl_asnd_ires_feat); proto_tree_add_boolean(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit8, tvb, offset, 4, epl_asnd_ires_feat); proto_tree_add_boolean(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit9, tvb, offset, 4, epl_asnd_ires_feat); proto_tree_add_boolean(epl_feat_tree, hf_epl_asnd_identresponse_feat_bitA, tvb, offset, 4, epl_asnd_ires_feat); proto_tree_add_boolean(epl_feat_tree, hf_epl_asnd_identresponse_feat_bitB, tvb, offset, 4, epl_asnd_ires_feat); proto_tree_add_boolean(epl_feat_tree, hf_epl_asnd_identresponse_feat_bitC, tvb, offset, 4, epl_asnd_ires_feat); proto_tree_add_boolean(epl_feat_tree, hf_epl_asnd_identresponse_feat_bitD, tvb, offset, 4, epl_asnd_ires_feat); 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; additional = tvb_get_letohs(tvb, offset+2); proto_tree_add_string_format(epl_tree, hf_epl_asnd_identresponse_dt, tvb, offset, 4, "", "Device Type: Profil %d (%s), Additional Information: 0x%4.4X", profile, val_to_str(profile, epl_device_profiles, "Unknown Profile"), additional); proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_profile, tvb, offset, 2, 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; } if (check_col(pinfo->cinfo, COL_INFO)) { col_append_str(pinfo->cinfo, COL_INFO, val_to_str(profile, epl_device_profiles, "Device Profile %d")); } return offset; } gint dissect_epl_asnd_sres(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, 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 */ guint8 nmt_state; if (epl_tree) { 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; } else { offset += 2; } nmt_state = tvb_get_guint8(tvb, offset); if (check_col(pinfo->cinfo, COL_INFO)) { col_append_fstr(pinfo->cinfo, COL_INFO, "%s ", val_to_str(nmt_state, epl_nmt_cs_vals, "Unknown (%d)")); } if (epl_tree) { if (epl_src != EPL_MN_NODEID) /* check if CN or MN */ { proto_tree_add_uint(epl_tree, hf_epl_asnd_statusresponse_stat_cs, tvb, offset, 1, nmt_state); } else /* MN */ { proto_tree_add_uint(epl_tree, hf_epl_asnd_statusresponse_stat_ms, tvb, offset, 1, nmt_state); } offset += 4; /* Subtree for the static error bitfield */ 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, 6, TRUE); offset += 6; /* List of errors / events */ /* 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 0) { offset = dissect_epl_sdo_command(epl_tree, tvb, pinfo, offset); } else if (check_col(pinfo->cinfo, COL_INFO)) { col_append_str(pinfo->cinfo, COL_INFO, "Empty CommandLayer"); } return offset; } gint dissect_epl_sdo_sequence(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset) { guint8 seq_recv, seq_send; /* Asynchronuous SDO Sequence Layer */ seq_recv = tvb_get_guint8(tvb, offset); if (epl_tree) { proto_tree_add_uint(epl_tree, hf_epl_asnd_sdo_seq_receive_sequence_number, tvb, offset, 1, seq_recv); proto_tree_add_uint(epl_tree, hf_epl_asnd_sdo_seq_receive_con, tvb, offset, 1, seq_recv); } offset += 1; seq_send = tvb_get_guint8(tvb, offset); if (epl_tree) { proto_tree_add_uint(epl_tree, hf_epl_asnd_sdo_seq_send_sequence_number, tvb, offset, 1, seq_send); proto_tree_add_uint(epl_tree, hf_epl_asnd_sdo_seq_send_con, tvb, offset, 1, seq_send); } offset += 3; if (check_col(pinfo->cinfo, COL_INFO)) { seq_recv &= EPL_ASND_SDO_SEQ_CON_MASK; seq_send &= EPL_ASND_SDO_SEQ_CON_MASK; if ((seq_recv == 0x00) && (seq_send == 0x00)) { /* Sequence layer will be closed */ col_append_str(pinfo->cinfo, COL_INFO, "Close "); } else if ((seq_recv < 0x02) || (seq_send < 0x02)) { col_append_fstr(pinfo->cinfo, COL_INFO, "Init=%d%d ", seq_recv, seq_send); } } return offset; } gint dissect_epl_sdo_command(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset) { guint8 segmented, command_id; gboolean response, abort_flag; guint32 abort_code; guint16 segment_size; offset += 1; segmented = FALSE; command_id = tvb_get_guint8(tvb, offset + 2); abort_flag = tvb_get_guint8(tvb, offset + 1) & EPL_ASND_SDO_CMD_ABORT_FILTER; /* test if CommandField == empty */ if (command_id != 0 || abort_flag) { segmented = (tvb_get_guint8(tvb, offset + 1) & EPL_ASND_SDO_CMD_SEGMENTATION_FILTER) >> 4; response = tvb_get_guint8(tvb, offset + 1) & EPL_ASND_SDO_CMD_RESPONSE_FILTER; segment_size = tvb_get_letohs(tvb, offset + 3); if (epl_tree) { 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); 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; } else { offset += 7; } /* adjust size of packet */ tvb_set_reported_length(tvb, offset + segment_size); if (segmented == EPL_ASND_SDO_CMD_SEGMENTATION_INITIATE_TRANSFER) { /* if Segmentation = Initiate then print DataSize */ if (epl_tree) { proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_data_size, tvb, offset, 4, TRUE); } segmented = TRUE; offset += 4; } if (abort_flag) { abort_code = tvb_get_letohl(tvb, offset); /* if AbortBit is set then print AbortMessage */ if (epl_tree) { proto_tree_add_uint(epl_tree, hf_epl_asnd_sdo_cmd_abort_code, tvb, offset, 4, abort_code); } if (check_col(pinfo->cinfo, COL_INFO)) { col_append_fstr(pinfo->cinfo, COL_INFO, "Abort = 0x%08X", abort_code); } } else { switch (command_id) { case EPL_ASND_SDO_COMMAND_WRITE_BY_INDEX: offset = dissect_epl_sdo_command_write_by_index(epl_tree, tvb, pinfo, offset, segmented, response); break; case EPL_ASND_SDO_COMMAND_READ_BY_INDEX: offset = dissect_epl_sdo_command_read_by_index(epl_tree, tvb, pinfo, offset, segmented, response); break; default: return FALSE; } } } return offset; } gint dissect_epl_sdo_command_write_by_index(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset, guint8 segmented, gboolean response) { gint size; guint16 index; guint8 subindex; guint32 val; proto_item* item; if (!response) { /* request */ if (segmented <= EPL_ASND_SDO_CMD_SEGMENTATION_INITIATE_TRANSFER) { index = tvb_get_letohs(tvb, offset); if (epl_tree) { proto_tree_add_uint(epl_tree, hf_epl_asnd_sdo_cmd_write_by_index_index, tvb, offset, 2, index); } offset += 2; subindex = tvb_get_guint8(tvb, offset); if (epl_tree) { proto_tree_add_uint(epl_tree, hf_epl_asnd_sdo_cmd_write_by_index_subindex, tvb, offset, 1, subindex); } offset += 2; if (check_col(pinfo->cinfo, COL_INFO)) { col_append_fstr(pinfo->cinfo, COL_INFO, "Write 0x%04X/%d", index, subindex); } } else if (check_col(pinfo->cinfo, COL_INFO)) { col_append_fstr(pinfo->cinfo, COL_INFO, "Requ. %s", val_to_str(segmented, epl_sdo_asnd_cmd_segmentation, "Unknown (%d)")); } if (epl_tree) { size = tvb_reported_length_remaining(tvb, offset); item = proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_write_by_index_data, tvb, offset, size, TRUE); if (size == 4) { val = tvb_get_letohl(tvb, offset); proto_item_append_text(item, " (%d)", val); } else if (size == 2) { val = tvb_get_letohs(tvb, offset); proto_item_append_text(item, " (%d)", val); } else if (size == 1) { val = tvb_get_guint8(tvb, offset); proto_item_append_text(item, " (%d)", val); } offset += size; } } else { /* response, no payload */ if (check_col(pinfo->cinfo, COL_INFO)) { col_append_str(pinfo->cinfo, COL_INFO, "Response"); } } return offset; } gint dissect_epl_sdo_command_read_by_index(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset, guint8 segmented, gboolean response) { gint size; guint16 index; guint8 subindex; guint32 val; proto_item* item; if (!response) { /* request */ index = tvb_get_letohs(tvb, offset); if (epl_tree) { proto_tree_add_uint(epl_tree, hf_epl_asnd_sdo_cmd_read_by_index_index, tvb, offset, 2, index); } offset += 2; subindex = tvb_get_guint8(tvb, offset); if (epl_tree) { proto_tree_add_uint(epl_tree, hf_epl_asnd_sdo_cmd_read_by_index_subindex, tvb, offset, 1, subindex); } offset += 1; if (check_col(pinfo->cinfo, COL_INFO)) { col_append_fstr(pinfo->cinfo, COL_INFO, "Read 0x%04X/%d", index, subindex); } } else { /* response */ if (check_col(pinfo->cinfo, COL_INFO)) { col_append_fstr(pinfo->cinfo, COL_INFO, "Resp. %s", val_to_str(segmented, epl_sdo_asnd_cmd_segmentation, "Unknown (%d)")); } if (epl_tree) { size = tvb_reported_length_remaining(tvb, offset); item = proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_read_by_index_data, tvb, offset, size, TRUE); if (size == 4) { val = tvb_get_letohl(tvb, offset); proto_item_append_text(item, " (%d)", val); } else if (size == 2) { val = tvb_get_letohs(tvb, offset); proto_item_append_text(item, " (%d)", val); } else if (size == 1) { val = tvb_get_guint8(tvb, offset); proto_item_append_text(item, " (%d)", val); } 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_HEX, NULL, 0x00, "", HFILL }}, { &hf_epl_src, { "Source", "epl.src", FT_UINT8, BASE_DEC_HEX, NULL, 0x00, "", HFILL }}, /* SoC data fields*/ { &hf_epl_soc_mc, { "MC (Multiplexed Cycle Completed)", "epl.soc.mc", FT_BOOLEAN, 8, NULL, EPL_SOC_MC_MASK, "", HFILL }}, { &hf_epl_soc_ps, { "PS (Prescaled Slot)", "epl.soc.ps", FT_BOOLEAN, 8, NULL, EPL_SOC_PS_MASK, "", 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_BOOLEAN, 8, NULL, 0x20, "", HFILL }}, { &hf_epl_preq_ea, { "EA (Exception Acknowledge)", "epl.preq.ea", FT_BOOLEAN, 8, NULL, 0x04, "", HFILL }}, { &hf_epl_preq_rd, { "RD (Ready)", "epl.preq.rd", FT_BOOLEAN, 8, NULL, EPL_PDO_RD_MASK, "", 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_HEX, VALS(epl_nmt_ms_vals),0x00, "", HFILL }}, { &hf_epl_pres_stat_cs, { "NMTStatus", "epl.pres.stat", FT_UINT8, BASE_HEX, VALS(epl_nmt_cs_vals),0x00, "", HFILL }}, { &hf_epl_pres_ms, { "MS (Multiplexed Slot)", "epl.pres.ms", FT_BOOLEAN, 8, NULL, 0x20, "", HFILL }}, { &hf_epl_pres_en, { "EN (Exception New)", "epl.pres.en", FT_BOOLEAN, 8, NULL, 0x10, "", HFILL }}, { &hf_epl_pres_rd, { "RD (Ready)", "epl.pres.rd", FT_BOOLEAN, 8, NULL, EPL_PDO_RD_MASK, "", 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_HEX, VALS(epl_nmt_ms_vals),0x00, "", HFILL }}, { &hf_epl_soa_stat_cs, { "NMTStatus", "epl.soa.stat", FT_UINT8, BASE_HEX, VALS(epl_nmt_cs_vals),0x00, "", HFILL }}, { &hf_epl_soa_ea, { "EA (Exception Acknowledge)", "epl.soa.ea", FT_BOOLEAN, 8, NULL, 0x04, "", HFILL }}, { &hf_epl_soa_er, { "ER (Exception Reset)", "epl.soa.er", FT_BOOLEAN, 8, 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_BOOLEAN, 8, NULL, 0x10, "", HFILL }}, { &hf_epl_asnd_identresponse_ec, { "EC (Exception Clear)", "epl.asnd.ires.ec", FT_BOOLEAN, 8, 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_HEX, VALS(epl_nmt_ms_vals),0x00, "", HFILL }}, { &hf_epl_asnd_identresponse_stat_cs, { "NMTStatus", "epl.asnd.ires.state", FT_UINT8, BASE_HEX, 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_HEX, NULL, 0x00, "", HFILL }}, { &hf_epl_asnd_identresponse_feat_bit0, { "Isochronous", "epl.asnd.ires.features.bit0", FT_BOOLEAN, 32, NULL, 0x0001, "", HFILL }}, { &hf_epl_asnd_identresponse_feat_bit1, { "SDO by UDP/IP", "epl.asnd.ires.features.bit1", FT_BOOLEAN, 32, NULL, 0x0002, "", HFILL }}, { &hf_epl_asnd_identresponse_feat_bit2, { "SDO by ASnd", "epl.asnd.ires.features.bit2", FT_BOOLEAN, 32, NULL, 0x0004, "", HFILL }}, { &hf_epl_asnd_identresponse_feat_bit3, { "SDO by PDO", "epl.asnd.ires.features.bit3", FT_BOOLEAN, 32, NULL, 0x0008, "", HFILL }}, { &hf_epl_asnd_identresponse_feat_bit4, { "NMT Info Services", "epl.asnd.ires.features.bit4", FT_BOOLEAN, 32, NULL, 0x0010, "", HFILL }}, { &hf_epl_asnd_identresponse_feat_bit5, { "Ext. NMT State Commands", "epl.asnd.ires.features.bit5", FT_BOOLEAN, 32, NULL, 0x0020, "", HFILL }}, { &hf_epl_asnd_identresponse_feat_bit6, { "Dynamic PDO Mapping", "epl.asnd.ires.features.bit6", FT_BOOLEAN, 32, NULL, 0x0040, "", HFILL }}, { &hf_epl_asnd_identresponse_feat_bit7, { "NMT Service by UDP/IP", "epl.asnd.ires.features.bit7", FT_BOOLEAN, 32, NULL, 0x0080, "", HFILL }}, { &hf_epl_asnd_identresponse_feat_bit8, { "Configuration Manager", "epl.asnd.ires.features.bit8", FT_BOOLEAN, 32, NULL, 0x0100, "", HFILL }}, { &hf_epl_asnd_identresponse_feat_bit9, { "Multiplexed Access", "epl.asnd.ires.features.bit9", FT_BOOLEAN, 32, NULL, 0x0200, "", HFILL }}, { &hf_epl_asnd_identresponse_feat_bitA, { "NodeID setup by SW", "epl.asnd.ires.features.bitA", FT_BOOLEAN, 32, NULL, 0x0400, "", HFILL }}, { &hf_epl_asnd_identresponse_feat_bitB, { "MN Basic Ethernet Mode", "epl.asnd.ires.features.bitB", FT_BOOLEAN, 32, NULL, 0x0800, "", HFILL }}, { &hf_epl_asnd_identresponse_feat_bitC, { "Routing Type 1 Support", "epl.asnd.ires.features.bitC", FT_BOOLEAN, 32, NULL, 0x1000, "", HFILL }}, { &hf_epl_asnd_identresponse_feat_bitD, { "Routing Type 2 Support", "epl.asnd.ires.features.bitD", FT_BOOLEAN, 32, NULL, 0x2000, "", 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_STRING, BASE_DEC, NULL, 0x00, "", HFILL }}, { &hf_epl_asnd_identresponse_profile, { "Profile", "epl.asnd.ires.profile", FT_UINT16, BASE_DEC, NULL, 0x00, "", HFILL }}, { &hf_epl_asnd_identresponse_vid, { "VendorId", "epl.asnd.ires.vendorid", FT_UINT32, BASE_DEC_HEX, NULL, 0x00, "", HFILL }}, { &hf_epl_asnd_identresponse_productcode,{ "ProductCode", "epl.asnd.ires.productcode", FT_UINT32, BASE_DEC_HEX, NULL, 0x00, "", HFILL }}, { &hf_epl_asnd_identresponse_rno, { "RevisionNumber", "epl.asnd.ires.revisionno", FT_UINT32, BASE_DEC_HEX, NULL, 0x00, "", HFILL }}, { &hf_epl_asnd_identresponse_sno, { "SerialNumber", "epl.asnd.ires.serialno", FT_UINT32, BASE_DEC_HEX, NULL, 0x00, "", HFILL }}, { &hf_epl_asnd_identresponse_vex1, { "VendorSpecificExtension1", "epl.asnd.ires.vendorext1", FT_UINT64, BASE_DEC_HEX, NULL, 0x00, "", HFILL }}, { &hf_epl_asnd_identresponse_vcd, { "VerifyConfigurationDate", "epl.asnd.ires.confdate", FT_UINT32, BASE_DEC_HEX, NULL, 0x00, "", HFILL }}, { &hf_epl_asnd_identresponse_vct, { "VerifyConfigurationTime", "epl.asnd.ires.conftime", FT_UINT32, BASE_DEC_HEX, NULL, 0x00, "", HFILL }}, { &hf_epl_asnd_identresponse_ad, { "applicationSwDate", "epl.asnd.ires.appswdate", FT_UINT32, BASE_DEC_HEX, NULL, 0x00, "", HFILL }}, { &hf_epl_asnd_identresponse_at, { "applicationSwTime", "epl.asnd.ires.appswtime", FT_UINT32, BASE_DEC_HEX, 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_BOOLEAN, 8, NULL, 0x10, "", HFILL }}, { &hf_epl_asnd_statusresponse_ec, { "EC (Exception Clear)", "epl.asnd.sres.ec", FT_BOOLEAN, 8, 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_HEX, VALS(epl_nmt_ms_vals), 0x00, "", HFILL }}, { &hf_epl_asnd_statusresponse_stat_cs, { "NMTStatus", "epl.asnd.sres.stat", FT_UINT8, BASE_HEX, 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, { "ErrorCodesList", "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_HEX_DEC, NULL, 0x00, "", HFILL }}, { &hf_epl_asnd_nmtrequest_rct, { "NMTRequestedCommandTarget", "epl.asnd.nmtrequest.rct", FT_UINT8, BASE_DEC_HEX, 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_HEX_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_HEX, 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_feat, &ett_epl_seb, &ett_epl_el, &ett_epl_el_entry, &ett_epl_el_entry_type, &ett_epl_sdo_entry_type, }; module_t *epl_module; /* 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)); /* register preferences */ epl_module = prefs_register_protocol(proto_epl, NULL); prefs_register_bool_preference(epl_module, "show_soc_flags", "Show flags of SoC frame in Info column", "If you are capturing in networks with multiplexed or slow nodes, this can be useful", &show_soc_flags); /* tap-registration */ /* epl_tap = register_tap("epl");*/ } void proto_reg_handoff_epl(void) { dissector_handle_t epl_handle; epl_handle = new_create_dissector_handle(dissect_epl, proto_epl); dissector_add("ethertype", ETHERTYPE_EPL_V2, epl_handle); dissector_add("udp.port", UDP_PORT_EPL, epl_handle); }