From Ryan Wamsley:
Add Ethernet Global Data (EGD) packet dissector. svn path=/trunk/; revision=25954
This commit is contained in:
Jaap Keuter
parent
021a926793
commit
9569e7a299
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@ -374,6 +374,7 @@ CLEAN_DISSECTOR_SRC = \
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packet-eapol.c \
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packet-echo.c \
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packet-edonkey.c \
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packet-egd.c \
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packet-eigrp.c \
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packet-enc.c \
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packet-enip.c \
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@ -0,0 +1,271 @@
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/* packet-egd.c
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* Routines for Ethernet Global Data dissection
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* EGD Home: www.gefanuc.com
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*
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* Copyright 2008
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* 29 July 2008 -- ryan wamsley
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <string.h>
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#include <epan/packet.h>
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#include <epan/prefs.h>
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/* forward reference */
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void proto_register_egd();
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void proto_reg_handoff_egd();
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static void dissect_egd(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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#define EGD_ST_NONEW 0
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#define EGD_ST_NOERROR 1
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#define EGD_ST_CONSUMED 2
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#define EGD_ST_SNTPERR 3
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#define EGD_ST_SPECERR 4
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#define EGD_ST_REFRESHERR 6
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#define EGD_ST_REFEXDERR 7
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#define EGD_ST_IPERR 10
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#define EGD_ST_RESOURSEERR 12
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#define EGD_ST_NAMERES 16
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#define EGD_ST_ETHERR 18
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#define EGD_ST_NOSUPPORT 22
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#define EGD_ST_NORESP 26
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#define EGD_ST_CREATEERR 28
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#define EGD_ST_DELETED 30
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/* Translate status to string */
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static const value_string egd_stat_vals[] = {
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{ EGD_ST_NONEW, "No new status event has occurred" },
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{ EGD_ST_NOERROR, "No error currently exists" },
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{ EGD_ST_CONSUMED, "No error, data consumed" },
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{ EGD_ST_SNTPERR, "SNTP error" },
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{ EGD_ST_SPECERR, "Specification error" },
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{ EGD_ST_REFRESHERR, "Data refresh error" },
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{ EGD_ST_REFEXDERR, "Data refresh period exceeded" },
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{ EGD_ST_IPERR, "IP Layer not currently initialized" },
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{ EGD_ST_RESOURSEERR, "Lack of resource error" },
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{ EGD_ST_NAMERES, "Name Resolution in progress" },
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{ EGD_ST_ETHERR, "Loss of Ethernet Interface error" },
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{ EGD_ST_NOSUPPORT, "Ethernet Interface does not support EGD" },
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{ EGD_ST_NORESP, "No Response from Ethernet Interface" },
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{ EGD_ST_CREATEERR, "Failed to create an exchange." },
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{ EGD_ST_DELETED, "Configured exchange deleted." },
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{ 0, NULL }
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};
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static int proto_egd = -1;
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static int global_egd_port = 18246; /* 0x4746 */
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static dissector_handle_t egd_handle;
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static dissector_handle_t data_handle;
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static int hf_egd_ver = -1;
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static int hf_egd_type = -1;
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static int hf_egd_rid = -1;
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static int hf_egd_pid = -1;
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static int hf_egd_exid = -1;
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static int hf_egd_time = -1;
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static int hf_egd_notime = -1;
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static int hf_egd_stat = -1;
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static int hf_egd_csig = -1;
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static int hf_egd_resv = -1;
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static gint ett_egd = -1;
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static gint ett_status_item = -1;
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static hf_register_info hf[] =
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{
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{ &hf_egd_ver,
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{ "Version", "egd.ver",
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FT_UINT8, BASE_DEC,
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NULL, 0x0,
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NULL, HFILL }
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},
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{ &hf_egd_type,
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{ "Type", "egd.type",
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FT_UINT8, BASE_DEC,
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NULL, 0x0,
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NULL, HFILL }
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},
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{ &hf_egd_rid,
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{ "RequestID", "egd.rid",
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FT_UINT16, BASE_DEC,
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NULL, 0x0,
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NULL, HFILL }
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},
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{ &hf_egd_pid,
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{ "ProducerID", "egd.pid",
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FT_IPv4, BASE_NONE,
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NULL, 0x0,
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"", HFILL }
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},
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{ &hf_egd_exid,
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{ "ExchangeID", "egd.exid",
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FT_UINT32, BASE_HEX,
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NULL, 0x0,
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NULL, HFILL }
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},
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{ &hf_egd_time,
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{ "Timestamp", "egd.time",
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FT_ABSOLUTE_TIME, BASE_DEC,
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NULL, 0x0,
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NULL, HFILL }
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},
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{ &hf_egd_notime,
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{ "Timestamp", "egd.time",
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FT_UINT64, BASE_HEX,
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NULL, 0x0,
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NULL, HFILL }
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},
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{ &hf_egd_stat,
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{ "Status", "egd.stat",
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FT_UINT32, BASE_DEC,
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VALS(egd_stat_vals), 0x0,
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"Status", HFILL }
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},
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{ &hf_egd_csig,
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{ "ConfigSignature", "egd.csig",
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FT_UINT32, BASE_DEC,
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NULL, 0x0,
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NULL, HFILL }
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},
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{ &hf_egd_resv,
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{ "Reserved", "egd.rsrv",
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FT_UINT32, BASE_DEC,
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NULL, 0x0,
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NULL, HFILL }
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}
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};
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static gint *ett[] =
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{
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&ett_egd,
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&ett_status_item
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};
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void proto_register_egd(void)
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{
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if (proto_egd == -1)
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{
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proto_egd = proto_register_protocol (
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"Ethernet Global Data", /* name */
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"EGD", /* short name */
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"egd" /* abbrev */
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);
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proto_register_field_array(proto_egd, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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}
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}
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void proto_reg_handoff_egd(void)
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{
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static int initialized = FALSE;
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if (!initialized)
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{
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/* find data dissector */
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data_handle = find_dissector("data");
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egd_handle = create_dissector_handle(dissect_egd, proto_egd);
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dissector_add("udp.port", global_egd_port, egd_handle);
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initialized = TRUE;
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}
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}
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static void dissect_egd(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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/* replace UDP with EGD in display */
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if (check_col(pinfo->cinfo, COL_PROTOCOL))
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{
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "EGD");
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}
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/* Clear out stuff in the info column */
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if (check_col(pinfo->cinfo,COL_INFO))
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{
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col_clear(pinfo->cinfo, COL_INFO);
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col_add_fstr(pinfo->cinfo, COL_INFO, "Data Msg: ExchangeID=0x%08X, RequestID=%05u",
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tvb_get_letohl(tvb, 8), tvb_get_letohs(tvb, 2));
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}
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if (tree)
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{
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proto_item *ti = NULL;
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proto_item *notime = NULL;
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proto_tree *egd_tree = NULL;
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tvbuff_t *next_tvb = NULL;
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gint offset, data_length;
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guint32 stime;
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nstime_t egd_time;
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memset(&egd_time, 0, sizeof(nstime_t));
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offset = 0;
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ti = proto_tree_add_item(tree, proto_egd, tvb, 0, -1, FALSE);
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egd_tree = proto_item_add_subtree(ti, ett_egd);
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proto_tree_add_item(egd_tree, hf_egd_type, tvb, offset, 1, FALSE);
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offset++;
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proto_tree_add_item(egd_tree, hf_egd_ver, tvb, offset, 1, FALSE);
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offset++;
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proto_tree_add_item(egd_tree, hf_egd_rid, tvb, offset, 2, TRUE);
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offset += 2;
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proto_tree_add_item(egd_tree, hf_egd_pid, tvb, offset, 4, FALSE);
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offset += 4;
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proto_tree_add_item(egd_tree, hf_egd_exid, tvb, offset, 4, TRUE);
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offset += 4;
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/* time */
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stime = tvb_get_ntohl(tvb, offset);
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if (0 == stime)
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{
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notime = proto_tree_add_item(egd_tree, hf_egd_notime, tvb, offset, 8, FALSE);
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proto_item_append_text(notime, "--No TimeStamp");
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}
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else
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{
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egd_time.secs = tvb_get_ntohl(tvb, offset);
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egd_time.nsecs = tvb_get_ntohl(tvb, offset+4);
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proto_tree_add_time(egd_tree, hf_egd_time, tvb, offset, 8, &egd_time);
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}
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offset += 8;
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proto_tree_add_item(egd_tree, hf_egd_stat, tvb, offset, 4, FALSE);
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offset += 4;
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proto_tree_add_item(egd_tree, hf_egd_csig, tvb, offset, 4, FALSE);
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offset += 4;
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proto_tree_add_item(egd_tree, hf_egd_resv, tvb, offset, 4, FALSE);
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offset += 4;
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data_length = tvb_length_remaining(tvb, offset);
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if (data_length > 0)
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{
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next_tvb = tvb_new_subset(tvb, offset, -1, -1);
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call_dissector(data_handle, next_tvb, pinfo, egd_tree);
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}
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}
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}
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