2001-03-31 10:13:13 +00:00
|
|
|
/* packet-bacapp.c
|
|
|
|
* Routines for BACnet (APDU) dissection
|
|
|
|
* Copyright 2001, Hartmut Mueller <hartmut@abmlinux.org>, FH Dortmund
|
|
|
|
*
|
2002-08-02 23:36:07 +00:00
|
|
|
* $Id: packet-bacapp.c,v 1.12 2002/08/02 23:35:47 jmayer Exp $
|
2001-03-31 10:13:13 +00:00
|
|
|
*
|
|
|
|
* Ethereal - Network traffic analyzer
|
2001-04-20 20:34:31 +00:00
|
|
|
* By Gerald Combs <gerald@ethereal.com>
|
2001-03-31 10:13:13 +00:00
|
|
|
* Copyright 1998 Gerald Combs
|
|
|
|
*
|
|
|
|
* Copied from README.developer,v 1.23
|
|
|
|
*
|
|
|
|
* 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 <stdio.h>
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include <string.h>
|
|
|
|
|
|
|
|
#include <glib.h>
|
|
|
|
|
2002-01-21 07:37:49 +00:00
|
|
|
#include <epan/packet.h>
|
2001-03-31 10:13:13 +00:00
|
|
|
|
|
|
|
static const char*
|
|
|
|
bacapp_type_name (guint8 bacapp_type){
|
|
|
|
static const char *type_names[] = {
|
|
|
|
"Confirmed-Request-PDU",
|
|
|
|
"Unconfirmed-Request-PDU",
|
|
|
|
"SimpleACK-PDU",
|
|
|
|
"ComplexACK-PDU",
|
|
|
|
"SegmentACK-PDU",
|
|
|
|
"Error-PDU",
|
|
|
|
"Reject-PDU",
|
|
|
|
"Abort-PDU"
|
|
|
|
};
|
|
|
|
return (bacapp_type > 7)? "unknown PDU" : type_names[bacapp_type];
|
|
|
|
}
|
|
|
|
|
|
|
|
static int proto_bacapp = -1;
|
|
|
|
static int hf_bacapp_type = -1;
|
|
|
|
|
|
|
|
static gint ett_bacapp = -1;
|
|
|
|
|
2001-11-26 01:03:35 +00:00
|
|
|
static dissector_handle_t data_handle;
|
|
|
|
|
2001-03-31 10:13:13 +00:00
|
|
|
static void
|
|
|
|
dissect_bacapp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
|
|
{
|
|
|
|
proto_item *ti;
|
|
|
|
proto_tree *bacapp_tree;
|
|
|
|
guint8 offset;
|
|
|
|
guint8 bacapp_type;
|
|
|
|
tvbuff_t *next_tvb;
|
|
|
|
|
2001-12-10 00:26:21 +00:00
|
|
|
if (check_col(pinfo->cinfo, COL_PROTOCOL))
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "BACnet-APDU");
|
|
|
|
if (check_col(pinfo->cinfo, COL_INFO))
|
|
|
|
col_add_str(pinfo->cinfo, COL_INFO, "BACnet APDU ");
|
2001-03-31 10:13:13 +00:00
|
|
|
|
|
|
|
offset = 0;
|
|
|
|
bacapp_type = (tvb_get_guint8(tvb, offset) >> 4) & 0x0f;
|
|
|
|
|
2001-12-10 00:26:21 +00:00
|
|
|
if (check_col(pinfo->cinfo, COL_INFO))
|
|
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, "(%s)",
|
2001-03-31 10:13:13 +00:00
|
|
|
bacapp_type_name(bacapp_type));
|
|
|
|
if (tree) {
|
2002-01-24 09:20:54 +00:00
|
|
|
ti = proto_tree_add_item(tree, proto_bacapp, tvb, offset, -1, FALSE);
|
2001-03-31 10:13:13 +00:00
|
|
|
|
|
|
|
bacapp_tree = proto_item_add_subtree(ti, ett_bacapp);
|
|
|
|
|
|
|
|
proto_tree_add_uint_format(bacapp_tree, hf_bacapp_type, tvb,
|
|
|
|
offset, 1, bacapp_type, "APDU Type: %u (%s)", bacapp_type,
|
|
|
|
bacapp_type_name(bacapp_type));
|
|
|
|
offset ++;
|
|
|
|
|
|
|
|
}
|
|
|
|
next_tvb = tvb_new_subset(tvb,offset,-1,-1);
|
2001-11-26 01:03:35 +00:00
|
|
|
call_dissector(data_handle,next_tvb, pinfo, tree);
|
2001-03-31 10:13:13 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
proto_register_bacapp(void)
|
|
|
|
{
|
|
|
|
static hf_register_info hf[] = {
|
|
|
|
{ &hf_bacapp_type,
|
|
|
|
{ "APDU Type", "bacapp.bacapp_type",
|
2001-06-18 02:18:27 +00:00
|
|
|
FT_UINT8, BASE_DEC, NULL, 0xf0, "APDU Type", HFILL }
|
2001-03-31 10:13:13 +00:00
|
|
|
},
|
|
|
|
};
|
|
|
|
static gint *ett[] = {
|
|
|
|
&ett_bacapp,
|
|
|
|
};
|
|
|
|
proto_bacapp = proto_register_protocol("Building Automation and Control Network APDU",
|
|
|
|
"BACapp", "bacapp");
|
|
|
|
proto_register_field_array(proto_bacapp, hf, array_length(hf));
|
|
|
|
proto_register_subtree_array(ett, array_length(ett));
|
2001-12-08 06:41:48 +00:00
|
|
|
register_dissector("bacapp", dissect_bacapp, proto_bacapp);
|
2001-03-31 10:13:13 +00:00
|
|
|
}
|
2001-12-08 06:41:48 +00:00
|
|
|
|
2001-03-31 10:13:13 +00:00
|
|
|
void
|
|
|
|
proto_reg_handoff_bacapp(void)
|
|
|
|
{
|
2001-11-26 01:03:35 +00:00
|
|
|
data_handle = find_dissector("data");
|
2001-03-31 10:13:13 +00:00
|
|
|
}
|
2001-12-08 06:41:48 +00:00
|
|
|
|