111 lines
3.0 KiB
C
111 lines
3.0 KiB
C
/* packet-dmx-text.c
|
|
* DMX Text packet disassembly.
|
|
*
|
|
* $Id$
|
|
*
|
|
* This dissector is written by
|
|
*
|
|
* Erwin Rol <erwin@erwinrol.com>
|
|
* Copyright 2011 Erwin Rol
|
|
*
|
|
* Wireshark - Network traffic analyzer
|
|
* Gerald Combs <gerald@wireshark.org>
|
|
* Copyright 1999 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., 51 Franklin Street, Fifth Floor
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
/*
|
|
* This dissector is based on;
|
|
* American National Standard E1.11 - 2004
|
|
* Entertainment Technology USITT DMX512-A
|
|
* Asynchronous Serial Digital Data Transmission Standard
|
|
* for Controlling Lighting Equipment and Accessories
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <epan/packet.h>
|
|
|
|
static int proto_dmx_text = -1;
|
|
|
|
static int hf_dmx_text_page_nr = -1;
|
|
static int hf_dmx_text_line_len = -1;
|
|
static int hf_dmx_text_string = -1;
|
|
|
|
static int ett_dmx_text = -1;
|
|
|
|
static void
|
|
dissect_dmx_text(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "DMX Text");
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
if (tree != NULL) {
|
|
unsigned offset = 0;
|
|
unsigned size;
|
|
|
|
proto_tree *ti = proto_tree_add_item(tree, proto_dmx_text, tvb,
|
|
offset, -1, FALSE);
|
|
proto_tree *dmx_text_tree = proto_item_add_subtree(ti, ett_dmx_text);
|
|
|
|
proto_tree_add_item(dmx_text_tree, hf_dmx_text_page_nr, tvb,
|
|
offset, 1, ENC_BIG_ENDIAN);
|
|
offset++;
|
|
|
|
proto_tree_add_item(dmx_text_tree, hf_dmx_text_line_len, tvb,
|
|
offset, 1, ENC_BIG_ENDIAN);
|
|
offset++;
|
|
|
|
size = tvb_reported_length_remaining(tvb, offset);
|
|
|
|
proto_tree_add_item(dmx_text_tree, hf_dmx_text_string, tvb,
|
|
offset, size, ENC_BIG_ENDIAN);
|
|
}
|
|
}
|
|
|
|
void
|
|
proto_register_dmx_text(void)
|
|
{
|
|
static hf_register_info hf[] = {
|
|
{ &hf_dmx_text_page_nr,
|
|
{ "Page Number",
|
|
"dmx_text.page_nr",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_dmx_text_line_len,
|
|
{ "Line Length",
|
|
"dmx_text.line_length",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_dmx_text_string,
|
|
{ "Text String",
|
|
"dmx_text.string",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
};
|
|
|
|
static gint *ett[] = {
|
|
&ett_dmx_text
|
|
};
|
|
|
|
proto_dmx_text = proto_register_protocol("DMX Text Frame", "DMX Text Frame", "dmx-text");
|
|
proto_register_field_array(proto_dmx_text, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
register_dissector("dmx-text", dissect_dmx_text, proto_dmx_text);
|
|
}
|
|
|