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/* packet-dvb-tdt.c
* Routines for DVB (ETSI EN 300 468) Time and Date Table (TDT) dissection
* Copyright 2012, Guy Martin <gmsoft@tuxicoman.be>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include <epan/packet.h>
#include "packet-mpeg-sect.h"
void proto_register_dvb_tdt(void);
void proto_reg_handoff_dvb_tdt(void);
static dissector_handle_t dvb_tdt_handle;
static int proto_dvb_tdt = -1;
static int hf_dvb_tdt_utc_time = -1;
static gint ett_dvb_tdt = -1;
static int
dissect_dvb_tdt(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
guint offset = 0;
proto_item *ti;
proto_tree *dvb_tdt_tree;
nstime_t utc_time;
col_set_str(pinfo->cinfo, COL_INFO, "Time and Date Table (TDT)");
ti = proto_tree_add_item(tree, proto_dvb_tdt, tvb, offset, -1, ENC_NA);
dvb_tdt_tree = proto_item_add_subtree(ti, ett_dvb_tdt);
offset += packet_mpeg_sect_header(tvb, offset, dvb_tdt_tree, NULL, NULL);
if (packet_mpeg_sect_mjd_to_utc_time(tvb, offset, &utc_time) < 0) {
proto_tree_add_time_format(dvb_tdt_tree, hf_dvb_tdt_utc_time, tvb, offset, 5, &utc_time, "Unparseable time");
} else {
proto_tree_add_time(dvb_tdt_tree, hf_dvb_tdt_utc_time, tvb, offset, 5, &utc_time);
}
offset += 5;
proto_item_set_len(ti, offset);
return tvb_captured_length(tvb);
}
void
proto_register_dvb_tdt(void)
{
static hf_register_info hf[] = {
{ &hf_dvb_tdt_utc_time, {
"UTC Time", "dvb_tdt.utc_time",
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_UTC, NULL, 0, NULL, HFILL
} }
};
static gint *ett[] = {
&ett_dvb_tdt
};
proto_dvb_tdt = proto_register_protocol("DVB Time and Date Table", "DVB TDT", "dvb_tdt");
proto_register_field_array(proto_dvb_tdt, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
dvb_tdt_handle = register_dissector("dvb_tdt", dissect_dvb_tdt, proto_dvb_tdt);
}
void proto_reg_handoff_dvb_tdt(void)
{
dissector_add_uint("mpeg_sect.tid", DVB_TDT_TID, dvb_tdt_handle);
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
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