aboutsummaryrefslogtreecommitdiffstats
path: root/epan/dissectors/packet-tsp.c
diff options
context:
space:
mode:
Diffstat (limited to 'epan/dissectors/packet-tsp.c')
-rw-r--r--epan/dissectors/packet-tsp.c227
1 files changed, 227 insertions, 0 deletions
diff --git a/epan/dissectors/packet-tsp.c b/epan/dissectors/packet-tsp.c
new file mode 100644
index 0000000000..1673712f0b
--- /dev/null
+++ b/epan/dissectors/packet-tsp.c
@@ -0,0 +1,227 @@
+/* packet-quake.c
+ * Routines for Time Synchronization Protocol (TSP) packet dissection
+ *
+ * Uwe Girlich <Uwe.Girlich@philosys.de>
+ *
+ * $Id$
+ *
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@ethereal.com>
+ * Copyright 1998 Gerald Combs
+ *
+ * Copied from packet-quake.c
+ *
+ * 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 <glib.h>
+#include <epan/packet.h>
+
+/*
+ * For a full documentation of the Time Synchronization Protocol (TSP) see:
+ * http://docs.freebsd.org/44doc/smm/12.timed/paper.pdf
+ */
+
+static int proto_tsp = -1;
+static int hf_tsp_type = -1;
+static int hf_tsp_vers = -1;
+static int hf_tsp_seq = -1;
+static int hf_tsp_hopcnt = -1;
+static int hf_tsp_time_sec = -1;
+static int hf_tsp_time_usec = -1;
+static int hf_tsp_name = -1;
+
+static gint ett_tsp = -1;
+
+static dissector_handle_t tsp_handle;
+
+
+/* timed port from /etc/services */
+#define UDP_PORT_TIMED 525
+
+
+static const value_string names_tsp_type[] = {
+#define TSP_ANY 0 /* match any types */
+ { TSP_ANY, "any" },
+#define TSP_ADJTIME 1 /* send adjtime */
+ { TSP_ADJTIME, "adjtime" },
+#define TSP_ACK 2 /* generic acknowledgement */
+ { TSP_ACK, "ack" },
+#define TSP_MASTERREQ 3 /* ask for master's name */
+ { TSP_MASTERREQ, "masterreq" },
+#define TSP_MASTERACK 4 /* acknowledge master request */
+ { TSP_MASTERACK, "masterack" },
+#define TSP_SETTIME 5 /* send network time */
+ { TSP_SETTIME, "settime" },
+#define TSP_MASTERUP 6 /* inform slaves that master is up */
+ { TSP_MASTERUP, "masterup" },
+#define TSP_SLAVEUP 7 /* slave is up but not polled */
+ { TSP_SLAVEUP, "slaveup" },
+#define TSP_ELECTION 8 /* advance candidature for master */
+ { TSP_ELECTION, "election" },
+#define TSP_ACCEPT 9 /* support candidature of master */
+ { TSP_ACCEPT, "accept" },
+#define TSP_REFUSE 10 /* reject candidature of master */
+ { TSP_REFUSE, "refuse" },
+#define TSP_CONFLICT 11 /* two or more masters present */
+ { TSP_CONFLICT, "conflict" },
+#define TSP_RESOLVE 12 /* masters' conflict resolution */
+ { TSP_RESOLVE, "resolve" },
+#define TSP_QUIT 13 /* reject candidature if master is up */
+ { TSP_QUIT, "quit" },
+#define TSP_DATE 14 /* reset the time (date command) */
+ { TSP_DATE, "date" },
+#define TSP_DATEREQ 15 /* remote request to reset the time */
+ { TSP_DATEREQ, "datereq" },
+#define TSP_DATEACK 16 /* acknowledge time setting */
+ { TSP_DATEACK, "dateack" },
+#define TSP_TRACEON 17 /* turn tracing on */
+ { TSP_TRACEON, "traceon" },
+#define TSP_TRACEOFF 18 /* turn tracing off */
+ { TSP_TRACEOFF, "traceoff" },
+#define TSP_MSITE 19 /* find out master's site */
+ { TSP_MSITE, "msite" },
+#define TSP_MSITEREQ 20 /* remote master's site request */
+ { TSP_MSITEREQ, "msitereq" },
+#define TSP_TEST 21 /* for testing election algo */
+ { TSP_TEST, "test" },
+#define TSP_SETDATE 22 /* New from date command */
+ { TSP_SETDATE, "setdate" },
+#define TSP_SETDATEREQ 23 /* New remote for above */
+ { TSP_SETDATEREQ, "setdatereq" },
+#define TSP_LOOP 24 /* loop detection packet */
+ { TSP_LOOP, "loop" },
+ { 0, NULL }
+};
+
+
+static void
+dissect_tsp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ proto_tree *tsp_tree = NULL;
+ proto_item *tsp_item = NULL;
+
+ guint8 tsp_type;
+
+ if (check_col(pinfo->cinfo, COL_PROTOCOL))
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, "TSP");
+ if (check_col(pinfo->cinfo, COL_INFO))
+ col_clear(pinfo->cinfo, COL_INFO);
+
+ tsp_type = tvb_get_guint8(tvb, 0);
+ if (check_col(pinfo->cinfo, COL_INFO))
+ col_add_str(pinfo->cinfo, COL_INFO,
+ val_to_str(tsp_type, names_tsp_type, "Unknown message type (%u)"));
+
+ if (tree) {
+ tsp_item = proto_tree_add_item(tree, proto_tsp,
+ tvb, 0, -1, FALSE);
+ if (tsp_item)
+ tsp_tree = proto_item_add_subtree(tsp_item, ett_tsp);
+ }
+
+ if (tsp_tree) {
+ proto_tree_add_uint(tsp_tree, hf_tsp_type,
+ tvb, 0, 1, tsp_type);
+ proto_tree_add_item(tsp_tree, hf_tsp_vers,
+ tvb, 1, 1, FALSE);
+ proto_tree_add_item(tsp_tree, hf_tsp_seq,
+ tvb, 2, 2, FALSE);
+ }
+
+ switch (tsp_type) {
+
+ case TSP_LOOP:
+ if (tsp_tree)
+ proto_tree_add_item(tsp_tree, hf_tsp_hopcnt,
+ tvb, 4, 1, FALSE);
+ break;
+
+ case TSP_SETTIME:
+ case TSP_ADJTIME:
+ case TSP_SETDATE:
+ case TSP_SETDATEREQ:
+ if (tsp_tree) {
+ proto_tree_add_item(tsp_tree, hf_tsp_time_sec,
+ tvb, 4, 4, FALSE);
+ proto_tree_add_item(tsp_tree, hf_tsp_time_usec,
+ tvb, 8, 4, FALSE);
+ }
+ break;
+ }
+
+ if (tsp_tree) {
+ proto_tree_add_item(tsp_tree, hf_tsp_name, tvb, 12,
+ -1, FALSE);
+ }
+}
+
+
+void
+proto_reg_handoff_tsp(void)
+{
+ dissector_add("udp.port", UDP_PORT_TIMED, tsp_handle);
+}
+
+
+void
+proto_register_tsp(void)
+{
+ static hf_register_info hf[] = {
+ { &hf_tsp_type,
+ { "Type", "tsp.type",
+ FT_UINT8, BASE_DEC, VALS(names_tsp_type), 0x0,
+ "Packet Type", HFILL }},
+ { &hf_tsp_vers,
+ { "Version", "tsp.version",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ "Protocol Version Number", HFILL }},
+ { &hf_tsp_seq,
+ { "Sequence", "tsp.sequence",
+ FT_UINT16, BASE_DEC, NULL, 0x0,
+ "Sequence Number", HFILL }},
+ { &hf_tsp_hopcnt,
+ { "Hop Count", "tsp.hopcnt",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ "Hop Count", HFILL }},
+ { &hf_tsp_time_sec,
+ { "Seconds", "tsp.sec",
+ FT_UINT32, BASE_DEC, NULL, 0x0,
+ "Seconds", HFILL }},
+ { &hf_tsp_time_usec,
+ { "Microseconds", "tsp.usec",
+ FT_UINT32, BASE_DEC, NULL, 0x0,
+ "Microseconds", HFILL }},
+ { &hf_tsp_name,
+ { "Machine Name", "tsp.name",
+ FT_STRINGZ, BASE_DEC, NULL, 0x0,
+ "Sender Machine Name", HFILL }}
+ };
+ static gint *ett[] = {
+ &ett_tsp
+ };
+
+ proto_tsp = proto_register_protocol("Time Synchronization Protocol",
+ "TSP", "tsp");
+ proto_register_field_array(proto_tsp, hf, array_length(hf));
+ proto_register_subtree_array(ett, array_length(ett));
+
+ tsp_handle = create_dissector_handle(dissect_tsp, proto_tsp);
+}
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-19 11:20:28 +0000