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/* packet-h501.c
* Routines for H.501 packet dissection
* 2007 Tomas Kukosa
*
* $Id$
*
* 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; 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.
*/
#include "config.h"
#include <glib.h>
#include <epan/packet.h>
#include <epan/prefs.h>
#include <epan/oids.h>
#include <epan/asn1.h>
#include "packet-tpkt.h"
#include "packet-per.h"
#include "packet-h225.h"
#include "packet-h235.h"
#define PNAME "H.501 Mobility"
#define PSNAME "H.501"
#define PFNAME "h501"
void proto_register_h501(void);
/* Initialize the protocol and registered fields */
static int proto_h501 = -1;
#include "packet-h501-hf.c"
/* Initialize the subtree pointers */
static int ett_h501 = -1;
#include "packet-h501-ett.c"
/* Dissectors */
static dissector_handle_t h501_pdu_handle;
/* Preferences */
static guint h501_udp_port = 2099;
static guint h501_tcp_port = 2099;
static gboolean h501_desegment_tcp = TRUE;
void proto_reg_handoff_h501(void);
#include "packet-h501-fn.c"
static int
dissect_h501_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
proto_item *ti = NULL;
proto_tree *h501_tree = NULL;
col_set_str(pinfo->cinfo, COL_PROTOCOL, PSNAME);
ti = proto_tree_add_item(tree, proto_h501, tvb, 0, -1, ENC_NA);
h501_tree = proto_item_add_subtree(ti, ett_h501);
return dissect_Message_PDU(tvb, pinfo, h501_tree, NULL);
}
static int
dissect_h501_udp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
dissect_tpkt_encap(tvb, pinfo, tree, FALSE, h501_pdu_handle);
return tvb_length(tvb);
}
static int
dissect_h501_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
dissect_tpkt_encap(tvb, pinfo, tree, h501_desegment_tcp, h501_pdu_handle);
return tvb_length(tvb);
}
/*--- proto_register_h501 ----------------------------------------------*/
void proto_register_h501(void) {
module_t *h501_module;
/* List of fields */
static hf_register_info hf[] = {
#include "packet-h501-hfarr.c"
};
/* List of subtrees */
static gint *ett[] = {
&ett_h501,
#include "packet-h501-ettarr.c"
};
/* Register protocol */
proto_h501 = proto_register_protocol(PNAME, PSNAME, PFNAME);
/* Register fields and subtrees */
proto_register_field_array(proto_h501, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
new_register_dissector(PFNAME, dissect_h501_pdu, proto_h501);
h501_module = prefs_register_protocol(proto_h501, proto_reg_handoff_h501);
prefs_register_uint_preference(h501_module, "udp.port",
"UDP port",
"Port to be decoded as h501",
10, &h501_udp_port);
prefs_register_uint_preference(h501_module, "tcp.port",
"TCP port",
"Port to be decoded as h501",
10, &h501_tcp_port);
prefs_register_bool_preference(h501_module, "desegment",
"Desegment H.501 over TCP",
"Desegment H.501 messages that span more TCP segments",
&h501_desegment_tcp);
}
/*--- proto_reg_handoff_h501 -------------------------------------------*/
void proto_reg_handoff_h501(void)
{
static gboolean h501_prefs_initialized = FALSE;
static dissector_handle_t h501_udp_handle;
static dissector_handle_t h501_tcp_handle;
static guint saved_h501_udp_port;
static guint saved_h501_tcp_port;
if (!h501_prefs_initialized) {
h501_pdu_handle = find_dissector(PFNAME);
h501_udp_handle = new_create_dissector_handle(dissect_h501_udp, proto_h501);
h501_tcp_handle = new_create_dissector_handle(dissect_h501_tcp, proto_h501);
h501_prefs_initialized = TRUE;
} else {
dissector_delete_uint("udp.port", saved_h501_udp_port, h501_udp_handle);
dissector_delete_uint("tcp.port", saved_h501_tcp_port, h501_tcp_handle);
}
/* Set our port number for future use */
saved_h501_udp_port = h501_udp_port;
dissector_add_uint("udp.port", saved_h501_udp_port, h501_udp_handle);
saved_h501_tcp_port = h501_tcp_port;
dissector_add_uint("tcp.port", saved_h501_tcp_port, h501_tcp_handle);
}
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