diff options
Diffstat (limited to 'epan/dissectors')
-rw-r--r-- | epan/dissectors/Makefile.common | 1 | ||||
-rw-r--r-- | epan/dissectors/packet-egd.c | 271 |
2 files changed, 272 insertions, 0 deletions
diff --git a/epan/dissectors/Makefile.common b/epan/dissectors/Makefile.common index d7c880f8fa..5f2f118106 100644 --- a/epan/dissectors/Makefile.common +++ b/epan/dissectors/Makefile.common @@ -374,6 +374,7 @@ CLEAN_DISSECTOR_SRC = \ packet-eapol.c \ packet-echo.c \ packet-edonkey.c \ + packet-egd.c \ packet-eigrp.c \ packet-enc.c \ packet-enip.c \ diff --git a/epan/dissectors/packet-egd.c b/epan/dissectors/packet-egd.c new file mode 100644 index 0000000000..c5f1dcbf41 --- /dev/null +++ b/epan/dissectors/packet-egd.c @@ -0,0 +1,271 @@ +/* packet-egd.c + * Routines for Ethernet Global Data dissection + * EGD Home: www.gefanuc.com + * + * Copyright 2008 + * 29 July 2008 -- ryan wamsley + * + * $Id$ + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 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 <string.h> +#include <epan/packet.h> +#include <epan/prefs.h> + +/* forward reference */ +void proto_register_egd(); +void proto_reg_handoff_egd(); +static void dissect_egd(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree); + +#define EGD_ST_NONEW 0 +#define EGD_ST_NOERROR 1 +#define EGD_ST_CONSUMED 2 +#define EGD_ST_SNTPERR 3 +#define EGD_ST_SPECERR 4 +#define EGD_ST_REFRESHERR 6 +#define EGD_ST_REFEXDERR 7 +#define EGD_ST_IPERR 10 +#define EGD_ST_RESOURSEERR 12 +#define EGD_ST_NAMERES 16 +#define EGD_ST_ETHERR 18 +#define EGD_ST_NOSUPPORT 22 +#define EGD_ST_NORESP 26 +#define EGD_ST_CREATEERR 28 +#define EGD_ST_DELETED 30 + +/* Translate status to string */ +static const value_string egd_stat_vals[] = { + { EGD_ST_NONEW, "No new status event has occurred" }, + { EGD_ST_NOERROR, "No error currently exists" }, + { EGD_ST_CONSUMED, "No error, data consumed" }, + { EGD_ST_SNTPERR, "SNTP error" }, + { EGD_ST_SPECERR, "Specification error" }, + { EGD_ST_REFRESHERR, "Data refresh error" }, + { EGD_ST_REFEXDERR, "Data refresh period exceeded" }, + { EGD_ST_IPERR, "IP Layer not currently initialized" }, + { EGD_ST_RESOURSEERR, "Lack of resource error" }, + { EGD_ST_NAMERES, "Name Resolution in progress" }, + { EGD_ST_ETHERR, "Loss of Ethernet Interface error" }, + { EGD_ST_NOSUPPORT, "Ethernet Interface does not support EGD" }, + { EGD_ST_NORESP, "No Response from Ethernet Interface" }, + { EGD_ST_CREATEERR, "Failed to create an exchange." }, + { EGD_ST_DELETED, "Configured exchange deleted." }, + { 0, NULL } +}; + +static int proto_egd = -1; +static int global_egd_port = 18246; /* 0x4746 */ +static dissector_handle_t egd_handle; +static dissector_handle_t data_handle; + +static int hf_egd_ver = -1; +static int hf_egd_type = -1; +static int hf_egd_rid = -1; +static int hf_egd_pid = -1; +static int hf_egd_exid = -1; +static int hf_egd_time = -1; +static int hf_egd_notime = -1; +static int hf_egd_stat = -1; +static int hf_egd_csig = -1; +static int hf_egd_resv = -1; + +static gint ett_egd = -1; +static gint ett_status_item = -1; + + +static hf_register_info hf[] = +{ + { &hf_egd_ver, + { "Version", "egd.ver", + FT_UINT8, BASE_DEC, + NULL, 0x0, + NULL, HFILL } + }, + { &hf_egd_type, + { "Type", "egd.type", + FT_UINT8, BASE_DEC, + NULL, 0x0, + NULL, HFILL } + }, + { &hf_egd_rid, + { "RequestID", "egd.rid", + FT_UINT16, BASE_DEC, + NULL, 0x0, + NULL, HFILL } + }, + { &hf_egd_pid, + { "ProducerID", "egd.pid", + FT_IPv4, BASE_NONE, + NULL, 0x0, + "", HFILL } + }, + { &hf_egd_exid, + { "ExchangeID", "egd.exid", + FT_UINT32, BASE_HEX, + NULL, 0x0, + NULL, HFILL } + }, + { &hf_egd_time, + { "Timestamp", "egd.time", + FT_ABSOLUTE_TIME, BASE_DEC, + NULL, 0x0, + NULL, HFILL } + }, + { &hf_egd_notime, + { "Timestamp", "egd.time", + FT_UINT64, BASE_HEX, + NULL, 0x0, + NULL, HFILL } + }, + { &hf_egd_stat, + { "Status", "egd.stat", + FT_UINT32, BASE_DEC, + VALS(egd_stat_vals), 0x0, + "Status", HFILL } + }, + { &hf_egd_csig, + { "ConfigSignature", "egd.csig", + FT_UINT32, BASE_DEC, + NULL, 0x0, + NULL, HFILL } + }, + { &hf_egd_resv, + { "Reserved", "egd.rsrv", + FT_UINT32, BASE_DEC, + NULL, 0x0, + NULL, HFILL } + } +}; + +static gint *ett[] = +{ + &ett_egd, + &ett_status_item +}; + + +void proto_register_egd(void) +{ + if (proto_egd == -1) + { + proto_egd = proto_register_protocol ( + "Ethernet Global Data", /* name */ + "EGD", /* short name */ + "egd" /* abbrev */ + ); + proto_register_field_array(proto_egd, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + } +} + + +void proto_reg_handoff_egd(void) +{ + static int initialized = FALSE; + + if (!initialized) + { + /* find data dissector */ + data_handle = find_dissector("data"); + + egd_handle = create_dissector_handle(dissect_egd, proto_egd); + dissector_add("udp.port", global_egd_port, egd_handle); + initialized = TRUE; + } +} + + +static void dissect_egd(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + /* replace UDP with EGD in display */ + if (check_col(pinfo->cinfo, COL_PROTOCOL)) + { + col_set_str(pinfo->cinfo, COL_PROTOCOL, "EGD"); + } + + /* Clear out stuff in the info column */ + if (check_col(pinfo->cinfo,COL_INFO)) + { + col_clear(pinfo->cinfo, COL_INFO); + col_add_fstr(pinfo->cinfo, COL_INFO, "Data Msg: ExchangeID=0x%08X, RequestID=%05u", + tvb_get_letohl(tvb, 8), tvb_get_letohs(tvb, 2)); + } + + if (tree) + { + proto_item *ti = NULL; + proto_item *notime = NULL; + proto_tree *egd_tree = NULL; + tvbuff_t *next_tvb = NULL; + gint offset, data_length; + guint32 stime; + nstime_t egd_time; + + memset(&egd_time, 0, sizeof(nstime_t)); + offset = 0; + + ti = proto_tree_add_item(tree, proto_egd, tvb, 0, -1, FALSE); + egd_tree = proto_item_add_subtree(ti, ett_egd); + proto_tree_add_item(egd_tree, hf_egd_type, tvb, offset, 1, FALSE); + offset++; + proto_tree_add_item(egd_tree, hf_egd_ver, tvb, offset, 1, FALSE); + offset++; + proto_tree_add_item(egd_tree, hf_egd_rid, tvb, offset, 2, TRUE); + offset += 2; + proto_tree_add_item(egd_tree, hf_egd_pid, tvb, offset, 4, FALSE); + offset += 4; + proto_tree_add_item(egd_tree, hf_egd_exid, tvb, offset, 4, TRUE); + offset += 4; + + /* time */ + stime = tvb_get_ntohl(tvb, offset); + if (0 == stime) + { + notime = proto_tree_add_item(egd_tree, hf_egd_notime, tvb, offset, 8, FALSE); + proto_item_append_text(notime, "--No TimeStamp"); + } + else + { + egd_time.secs = tvb_get_ntohl(tvb, offset); + egd_time.nsecs = tvb_get_ntohl(tvb, offset+4); + proto_tree_add_time(egd_tree, hf_egd_time, tvb, offset, 8, &egd_time); + } + offset += 8; + + proto_tree_add_item(egd_tree, hf_egd_stat, tvb, offset, 4, FALSE); + offset += 4; + proto_tree_add_item(egd_tree, hf_egd_csig, tvb, offset, 4, FALSE); + offset += 4; + proto_tree_add_item(egd_tree, hf_egd_resv, tvb, offset, 4, FALSE); + offset += 4; + + data_length = tvb_length_remaining(tvb, offset); + if (data_length > 0) + { + next_tvb = tvb_new_subset(tvb, offset, -1, -1); + call_dissector(data_handle, next_tvb, pinfo, egd_tree); + } + } +} |