7c4176d868
winapi_cleanup tool written by Patrik Stridvall for the wine project. svn path=/trunk/; revision=6117
236 lines
7.1 KiB
C
236 lines
7.1 KiB
C
/* packet-quake.c
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* Routines for Time Synchronization Protocol (TSP) packet dissection
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*
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* Uwe Girlich <Uwe.Girlich@philosys.de>
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*
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* $Id: packet-tsp.c,v 1.3 2002/08/28 21:00:36 jmayer Exp $
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 1998 Gerald Combs
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*
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* Copied from packet-quake.c
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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 <glib.h>
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#include <epan/packet.h>
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/*
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* For a full documentation of the Time Synchronization Protocol (TSP) see:
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* http://docs.freebsd.org/44doc/smm/12.timed/paper.pdf
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*/
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static int proto_tsp = -1;
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static int hf_tsp_type = -1;
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static int hf_tsp_vers = -1;
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static int hf_tsp_seq = -1;
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static int hf_tsp_hopcnt = -1;
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static int hf_tsp_time_sec = -1;
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static int hf_tsp_time_usec = -1;
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static int hf_tsp_name = -1;
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static gint ett_tsp = -1;
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static dissector_handle_t tsp_handle;
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/* timed port from /etc/services */
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#define UDP_PORT_TIMED 525
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static const value_string names_tsp_type[] = {
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#define TSP_ANY 0 /* match any types */
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{ TSP_ANY, "any" },
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#define TSP_ADJTIME 1 /* send adjtime */
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{ TSP_ADJTIME, "adjtime" },
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#define TSP_ACK 2 /* generic acknowledgement */
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{ TSP_ACK, "ack" },
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#define TSP_MASTERREQ 3 /* ask for master's name */
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{ TSP_MASTERREQ, "masterreq" },
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#define TSP_MASTERACK 4 /* acknowledge master request */
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{ TSP_MASTERACK, "masterack" },
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#define TSP_SETTIME 5 /* send network time */
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{ TSP_SETTIME, "settime" },
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#define TSP_MASTERUP 6 /* inform slaves that master is up */
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{ TSP_MASTERUP, "masterup" },
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#define TSP_SLAVEUP 7 /* slave is up but not polled */
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{ TSP_SLAVEUP, "slaveup" },
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#define TSP_ELECTION 8 /* advance candidature for master */
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{ TSP_ELECTION, "election" },
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#define TSP_ACCEPT 9 /* support candidature of master */
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{ TSP_ACCEPT, "accept" },
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#define TSP_REFUSE 10 /* reject candidature of master */
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{ TSP_REFUSE, "refuse" },
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#define TSP_CONFLICT 11 /* two or more masters present */
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{ TSP_CONFLICT, "conflict" },
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#define TSP_RESOLVE 12 /* masters' conflict resolution */
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{ TSP_RESOLVE, "resolve" },
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#define TSP_QUIT 13 /* reject candidature if master is up */
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{ TSP_QUIT, "quit" },
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#define TSP_DATE 14 /* reset the time (date command) */
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{ TSP_DATE, "date" },
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#define TSP_DATEREQ 15 /* remote request to reset the time */
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{ TSP_DATEREQ, "datereq" },
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#define TSP_DATEACK 16 /* acknowledge time setting */
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{ TSP_DATEACK, "dateack" },
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#define TSP_TRACEON 17 /* turn tracing on */
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{ TSP_TRACEON, "traceon" },
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#define TSP_TRACEOFF 18 /* turn tracing off */
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{ TSP_TRACEOFF, "traceoff" },
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#define TSP_MSITE 19 /* find out master's site */
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{ TSP_MSITE, "msite" },
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#define TSP_MSITEREQ 20 /* remote master's site request */
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{ TSP_MSITEREQ, "msitereq" },
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#define TSP_TEST 21 /* for testing election algo */
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{ TSP_TEST, "test" },
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#define TSP_SETDATE 22 /* New from date command */
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{ TSP_SETDATE, "setdate" },
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#define TSP_SETDATEREQ 23 /* New remote for above */
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{ TSP_SETDATEREQ, "setdatereq" },
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#define TSP_LOOP 24 /* loop detection packet */
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{ TSP_LOOP, "loop" },
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{ 0, NULL }
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};
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static void
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dissect_tsp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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proto_tree *tsp_tree = NULL;
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proto_item *tsp_item = NULL;
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guint8 tsp_type;
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guint8 tsp_vers;
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guint16 tsp_seq;
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guint32 tsp_time_sec;
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guint32 tsp_time_usec;
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guint8 tsp_hopcnt;
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gint tsp_name_length;
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guint8 tsp_name[256];
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if (check_col(pinfo->cinfo, COL_PROTOCOL))
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "TSP");
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if (check_col(pinfo->cinfo, COL_INFO))
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col_clear(pinfo->cinfo, COL_INFO);
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tsp_type = tvb_get_guint8(tvb, 0);
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tsp_vers = tvb_get_guint8(tvb, 1);
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tsp_seq = tvb_get_ntohs(tvb, 2);
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if (tree) {
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tsp_item = proto_tree_add_item(tree, proto_tsp,
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tvb, 0, -1, FALSE);
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if (tsp_item)
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tsp_tree = proto_item_add_subtree(tsp_item, ett_tsp);
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}
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if (tsp_tree) {
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proto_tree_add_uint(tsp_tree, hf_tsp_type,
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tvb, 0, 1, tsp_type);
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proto_tree_add_uint(tsp_tree, hf_tsp_vers,
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tvb, 1, 1, tsp_vers);
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proto_tree_add_uint(tsp_tree, hf_tsp_seq,
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tvb, 2, 2, tsp_seq);
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}
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if (tsp_type == TSP_LOOP) {
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tsp_hopcnt = tvb_get_guint8(tvb, 4);
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if (tsp_tree)
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proto_tree_add_uint(tsp_tree, hf_tsp_hopcnt,
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tvb, 4, 1, tsp_type);
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}
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if (tsp_type == TSP_SETTIME ||
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tsp_type == TSP_ADJTIME ||
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tsp_type == TSP_SETDATE ||
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tsp_type == TSP_SETDATEREQ) {
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tsp_time_sec = tvb_get_ntohl(tvb, 4);
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if (tsp_tree)
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proto_tree_add_uint(tsp_tree, hf_tsp_time_sec,
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tvb, 4, 4, tsp_time_sec);
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tsp_time_usec = tvb_get_ntohl(tvb, 8);
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if (tsp_tree)
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proto_tree_add_uint(tsp_tree, hf_tsp_time_usec,
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tvb, 8, 4, tsp_time_usec);
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}
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tsp_name_length = tvb_get_nstringz(tvb, 12, 256, tsp_name);
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if (tsp_name_length>0 && tsp_tree) {
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proto_tree_add_string(tsp_tree, hf_tsp_name, tvb, 12,
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tsp_name_length, tsp_name);
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}
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}
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void
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proto_reg_handoff_tsp(void)
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{
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dissector_add("udp.port", UDP_PORT_TIMED, tsp_handle);
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}
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void
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proto_register_tsp(void)
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{
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static hf_register_info hf[] = {
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{ &hf_tsp_type,
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{ "Type", "tsp.type",
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FT_UINT8, BASE_DEC, VALS(names_tsp_type), 0x0,
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"Packet Type", HFILL }},
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{ &hf_tsp_vers,
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{ "Version", "tsp.version",
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FT_UINT8, BASE_DEC, NULL, 0x0,
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"Protocol Version Number", HFILL }},
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{ &hf_tsp_seq,
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{ "Sequence", "tsp.sequence",
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FT_UINT16, BASE_DEC, NULL, 0x0,
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"Sequence Number", HFILL }},
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{ &hf_tsp_hopcnt,
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{ "Hop Count", "tsp.hopcnt",
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FT_UINT8, BASE_DEC, NULL, 0x0,
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"Hop Count", HFILL }},
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{ &hf_tsp_time_sec,
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{ "Seconds", "tsp.sec",
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FT_UINT32, BASE_DEC, NULL, 0x0,
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"Seconds", HFILL }},
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{ &hf_tsp_time_usec,
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{ "Microseconds", "tsp.usec",
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FT_UINT32, BASE_DEC, NULL, 0x0,
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"Microseconds", HFILL }},
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{ &hf_tsp_name,
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{ "Machine Name", "tsp.name",
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FT_STRING, BASE_DEC, NULL, 0x0,
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"Sender Machine Name", HFILL }}
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};
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static gint *ett[] = {
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&ett_tsp
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};
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proto_tsp = proto_register_protocol("Time Synchronization Protocol",
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"TSP", "tsp");
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proto_register_field_array(proto_tsp, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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tsp_handle = create_dissector_handle(dissect_tsp, proto_tsp);
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}
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