2012-03-30 01:17:46 +00:00
|
|
|
/* packet-dvb-bat.c
|
|
|
|
* Routines for DVB (ETSI EN 300 468) Bouquet Association Table (BAT) dissection
|
|
|
|
* Copyright 2012, Guy Martin <gmsoft@tuxicoman.be>
|
|
|
|
*
|
|
|
|
* $Id$
|
|
|
|
*
|
|
|
|
* 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; bather 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.,
|
|
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
|
|
# include "config.h"
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#include <glib.h>
|
|
|
|
|
|
|
|
#include <epan/packet.h>
|
|
|
|
#include <epan/dissectors/packet-mpeg-sect.h>
|
|
|
|
|
|
|
|
#include "packet-mpeg-descriptor.h"
|
|
|
|
|
|
|
|
static int proto_dvb_bat = -1;
|
|
|
|
static int hf_dvb_bat_bouquet_id = -1;
|
|
|
|
static int hf_dvb_bat_reserved1 = -1;
|
|
|
|
static int hf_dvb_bat_version_number = -1;
|
|
|
|
static int hf_dvb_bat_current_next_indicator = -1;
|
|
|
|
static int hf_dvb_bat_section_number = -1;
|
|
|
|
static int hf_dvb_bat_last_section_number = -1;
|
|
|
|
|
|
|
|
static int hf_dvb_bat_reserved2 = -1;
|
|
|
|
static int hf_dvb_bat_bouquet_descriptors_length = -1;
|
|
|
|
|
|
|
|
static int hf_dvb_bat_reserved3 = -1;
|
|
|
|
static int hf_dvb_bat_transport_stream_loop_length = -1;
|
|
|
|
|
|
|
|
static int hf_dvb_bat_transport_stream_id = -1;
|
|
|
|
static int hf_dvb_bat_original_network_id = -1;
|
|
|
|
static int hf_dvb_bat_reserved4 = -1;
|
|
|
|
static int hf_dvb_bat_transport_descriptors_length = -1;
|
|
|
|
|
|
|
|
static gint ett_dvb_bat = -1;
|
|
|
|
static gint ett_dvb_bat_transport_stream = -1;
|
|
|
|
|
|
|
|
|
|
|
|
#define DVB_BAT_TID 0x4A
|
|
|
|
|
|
|
|
#define DVB_BAT_RESERVED1_MASK 0xC0
|
|
|
|
#define DVB_BAT_VERSION_NUMBER_MASK 0x3E
|
|
|
|
#define DVB_BAT_CURRENT_NEXT_INDICATOR_MASK 0x01
|
|
|
|
|
|
|
|
#define DVB_BAT_RESERVED2_MASK 0xF000
|
|
|
|
#define DVB_BAT_BOUQUET_DESCRIPTORS_LENGTH_MASK 0x0FFF
|
|
|
|
|
|
|
|
#define DVB_BAT_RESERVED3_MASK 0xF000
|
|
|
|
#define DVB_BAT_TRANSPORT_STREAM_LOOP_LENGTH_MASK 0x0FFF
|
|
|
|
|
|
|
|
#define DVB_BAT_RESERVED4_MASK 0xF000
|
|
|
|
#define DVB_BAT_TRANSPORT_DESCRIPTORS_LENGTH_MASK 0x0FFF
|
|
|
|
|
|
|
|
static const value_string dvb_bat_cur_next_vals[] = {
|
|
|
|
{ 0, "Not yet applicable" },
|
|
|
|
{ 1, "Currently applicable" },
|
|
|
|
|
|
|
|
{ 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static const value_string dvb_bat_running_status_vals[] = {
|
|
|
|
{ 0, "Undefined" },
|
|
|
|
{ 1, "Not Running" },
|
|
|
|
{ 2, "Starts in a few seconds" },
|
|
|
|
{ 3, "Pausing" },
|
|
|
|
{ 4, "Running" },
|
|
|
|
{ 5, "Service off-air" },
|
|
|
|
|
|
|
|
{ 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static const value_string dvb_bat_free_ca_mode_vals[] = {
|
|
|
|
{ 0, "Not Scrambled" },
|
|
|
|
{ 1, "One or more component scrambled" },
|
|
|
|
|
|
|
|
{ 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static void
|
|
|
|
dissect_dvb_bat(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
|
|
{
|
|
|
|
|
|
|
|
guint offset = 0, length = 0, descriptor_end = 0, ts_loop_end = 0;
|
|
|
|
guint16 ts_id = 0, descriptor_len = 0, ts_loop_len = 0;
|
|
|
|
|
2012-09-03 21:18:50 +00:00
|
|
|
proto_item *ti;
|
|
|
|
proto_tree *dvb_bat_tree;
|
|
|
|
proto_item *tsi;
|
|
|
|
proto_tree *transport_stream_tree;
|
2012-03-30 01:17:46 +00:00
|
|
|
|
|
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
col_set_str(pinfo->cinfo, COL_INFO, "Bouquet Association Table (BAT)");
|
|
|
|
|
|
|
|
ti = proto_tree_add_item(tree, proto_dvb_bat, tvb, offset, -1, ENC_NA);
|
|
|
|
dvb_bat_tree = proto_item_add_subtree(ti, ett_dvb_bat);
|
|
|
|
|
|
|
|
offset += packet_mpeg_sect_header(tvb, offset, dvb_bat_tree, &length, NULL);
|
|
|
|
length -= 4;
|
|
|
|
|
|
|
|
proto_tree_add_item(dvb_bat_tree, hf_dvb_bat_bouquet_id, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
|
|
offset += 2;
|
|
|
|
|
|
|
|
proto_tree_add_item(dvb_bat_tree, hf_dvb_bat_reserved1, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
proto_tree_add_item(dvb_bat_tree, hf_dvb_bat_version_number, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
proto_tree_add_item(dvb_bat_tree, hf_dvb_bat_current_next_indicator, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
offset++;
|
|
|
|
|
|
|
|
proto_tree_add_item(dvb_bat_tree, hf_dvb_bat_section_number, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
offset++;
|
|
|
|
|
|
|
|
proto_tree_add_item(dvb_bat_tree, hf_dvb_bat_last_section_number, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
offset++;
|
|
|
|
|
|
|
|
descriptor_len = tvb_get_ntohs(tvb, offset) & DVB_BAT_BOUQUET_DESCRIPTORS_LENGTH_MASK;
|
|
|
|
proto_tree_add_item(dvb_bat_tree, hf_dvb_bat_reserved2, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
|
|
proto_tree_add_item(dvb_bat_tree, hf_dvb_bat_bouquet_descriptors_length, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
|
|
offset += 2;
|
|
|
|
|
|
|
|
descriptor_end = offset + descriptor_len;
|
|
|
|
while (offset < descriptor_end)
|
|
|
|
offset += proto_mpeg_descriptor_dissect(tvb, offset, dvb_bat_tree);
|
|
|
|
|
|
|
|
ts_loop_len = tvb_get_ntohs(tvb, offset) & DVB_BAT_TRANSPORT_STREAM_LOOP_LENGTH_MASK;
|
|
|
|
proto_tree_add_item(dvb_bat_tree, hf_dvb_bat_reserved3, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
|
|
proto_tree_add_item(dvb_bat_tree, hf_dvb_bat_transport_stream_loop_length, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
|
|
offset += 2;
|
|
|
|
|
|
|
|
ts_loop_end = offset + ts_loop_len;
|
|
|
|
while (offset < ts_loop_end) {
|
|
|
|
ts_id = tvb_get_ntohs(tvb, offset);
|
|
|
|
descriptor_len = tvb_get_ntohs(tvb, offset + 4) & DVB_BAT_TRANSPORT_DESCRIPTORS_LENGTH_MASK;
|
|
|
|
|
|
|
|
tsi = proto_tree_add_text(dvb_bat_tree, tvb, offset, 6 + descriptor_len, "Transport Stream 0x%04x", ts_id);
|
|
|
|
transport_stream_tree = proto_item_add_subtree(tsi, ett_dvb_bat_transport_stream);
|
|
|
|
|
|
|
|
proto_tree_add_item(transport_stream_tree, hf_dvb_bat_transport_stream_id, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
|
|
offset += 2;
|
|
|
|
|
|
|
|
proto_tree_add_item(transport_stream_tree, hf_dvb_bat_original_network_id, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
|
|
offset += 2;
|
|
|
|
|
|
|
|
proto_tree_add_item(transport_stream_tree, hf_dvb_bat_reserved4, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
|
|
proto_tree_add_item(transport_stream_tree, hf_dvb_bat_transport_descriptors_length, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
|
|
offset += 2;
|
|
|
|
|
|
|
|
descriptor_end = offset + descriptor_len;
|
|
|
|
while (offset < descriptor_end)
|
|
|
|
offset += proto_mpeg_descriptor_dissect(tvb, offset, transport_stream_tree);
|
|
|
|
}
|
|
|
|
|
2012-09-03 21:18:50 +00:00
|
|
|
offset += packet_mpeg_sect_crc(tvb, pinfo, dvb_bat_tree, 0, offset);
|
|
|
|
proto_item_set_len(ti, offset);
|
2012-03-30 01:17:46 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
proto_register_dvb_bat(void)
|
|
|
|
{
|
|
|
|
|
|
|
|
static hf_register_info hf[] = {
|
|
|
|
|
|
|
|
{ &hf_dvb_bat_bouquet_id, {
|
|
|
|
"Service ID", "dvb_bat.sid",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL
|
|
|
|
} },
|
|
|
|
|
|
|
|
{ &hf_dvb_bat_reserved1, {
|
|
|
|
"Reserved", "dvb_bat.reserved1",
|
|
|
|
FT_UINT8, BASE_HEX, NULL, DVB_BAT_RESERVED1_MASK, NULL, HFILL
|
|
|
|
} },
|
|
|
|
|
|
|
|
{ &hf_dvb_bat_version_number, {
|
|
|
|
"Version Number", "dvb_bat.version",
|
|
|
|
FT_UINT8, BASE_HEX, NULL, DVB_BAT_VERSION_NUMBER_MASK, NULL, HFILL
|
|
|
|
} },
|
|
|
|
|
|
|
|
{ &hf_dvb_bat_current_next_indicator, {
|
|
|
|
"Current/Next Indicator", "dvb_bat.cur_next_ind",
|
|
|
|
FT_UINT8, BASE_DEC, VALS(dvb_bat_cur_next_vals), DVB_BAT_CURRENT_NEXT_INDICATOR_MASK, NULL, HFILL
|
|
|
|
} },
|
|
|
|
|
|
|
|
{ &hf_dvb_bat_section_number, {
|
|
|
|
"Section Number", "dvb_bat.sect_num",
|
|
|
|
FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL
|
|
|
|
} },
|
|
|
|
|
|
|
|
{ &hf_dvb_bat_last_section_number, {
|
|
|
|
"Last Section Number", "dvb_bat.last_sect_num",
|
|
|
|
FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL
|
|
|
|
} },
|
|
|
|
|
|
|
|
{ &hf_dvb_bat_reserved2, {
|
|
|
|
"Reserved", "dvb_bat.reserved2",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, DVB_BAT_RESERVED2_MASK, NULL, HFILL
|
|
|
|
} },
|
|
|
|
|
|
|
|
{ &hf_dvb_bat_bouquet_descriptors_length, {
|
|
|
|
"Bouquet Descriptors Length", "dvb_bat.bouquet_desc_len",
|
|
|
|
FT_UINT16, BASE_DEC, NULL, DVB_BAT_BOUQUET_DESCRIPTORS_LENGTH_MASK, NULL, HFILL
|
|
|
|
} },
|
|
|
|
|
|
|
|
{ &hf_dvb_bat_reserved3, {
|
|
|
|
"Reserved", "dvb_bat.reserved3",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, DVB_BAT_RESERVED3_MASK, NULL, HFILL
|
|
|
|
} },
|
|
|
|
|
|
|
|
{ &hf_dvb_bat_transport_stream_loop_length, {
|
|
|
|
"Transport Stream Loop Length", "dvb_bat.ts_loop_len",
|
|
|
|
FT_UINT16, BASE_DEC, NULL, DVB_BAT_TRANSPORT_STREAM_LOOP_LENGTH_MASK, NULL, HFILL
|
|
|
|
} },
|
|
|
|
|
|
|
|
{ &hf_dvb_bat_transport_stream_id, {
|
|
|
|
"Transport Stream ID", "dvb_bat.ts.id",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL
|
|
|
|
} },
|
|
|
|
|
|
|
|
{ &hf_dvb_bat_original_network_id, {
|
|
|
|
"Original Network ID", "dvb_bat.ts.original_nid",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL
|
|
|
|
} },
|
|
|
|
|
|
|
|
{ &hf_dvb_bat_reserved4, {
|
|
|
|
"Reserved", "dvb_bat.ts.reserved",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, DVB_BAT_RESERVED4_MASK, NULL, HFILL
|
|
|
|
} },
|
|
|
|
|
|
|
|
{ &hf_dvb_bat_transport_descriptors_length, {
|
|
|
|
"Bouquet Descriptors Length", "dvb_bat.ts.desc_len",
|
|
|
|
FT_UINT16, BASE_DEC, NULL, DVB_BAT_BOUQUET_DESCRIPTORS_LENGTH_MASK, NULL, HFILL
|
|
|
|
} },
|
|
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
static gint *ett[] = {
|
|
|
|
&ett_dvb_bat,
|
|
|
|
&ett_dvb_bat_transport_stream
|
|
|
|
};
|
|
|
|
|
|
|
|
proto_dvb_bat = proto_register_protocol("DVB Bouquet Association Table", "DVB BAT", "dvb_bat");
|
|
|
|
|
|
|
|
proto_register_field_array(proto_dvb_bat, hf, array_length(hf));
|
|
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void proto_reg_handoff_dvb_bat(void)
|
|
|
|
{
|
|
|
|
dissector_handle_t dvb_bat_handle;
|
|
|
|
|
|
|
|
dvb_bat_handle = create_dissector_handle(dissect_dvb_bat, proto_dvb_bat);
|
|
|
|
|
|
|
|
dissector_add_uint("mpeg_sect.tid", DVB_BAT_TID, dvb_bat_handle);
|
|
|
|
}
|
2012-09-03 18:50:21 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Editor modelines - http://www.wireshark.org/tools/modelines.html
|
|
|
|
*
|
|
|
|
* Local variables:
|
|
|
|
* c-basic-offset: 4
|
|
|
|
* tab-width: 4
|
|
|
|
* indent-tabs-mode: t
|
|
|
|
* End:
|
|
|
|
*
|
|
|
|
* vi: set shiftwidth=4 tabstop=4 noexpandtab:
|
|
|
|
* :indentSize=4:tabSize=4:noTabs=false:
|
|
|
|
*/
|