forked from osmocom/wireshark
154 lines
4.3 KiB
C
154 lines
4.3 KiB
C
/* packet-ilp.c
|
|
* Routines for OMA Internal Location Protocol packet dissection
|
|
* Copyright 2006, e.yimjia <jy.m12.0@gmail.com>
|
|
*
|
|
* 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.
|
|
*
|
|
* ref OMA-TS-ILP-V2_0_1-20121205-A
|
|
* http://www.openmobilealliance.org
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <epan/packet.h>
|
|
#include <epan/prefs.h>
|
|
#include <epan/asn1.h>
|
|
|
|
#include "packet-per.h"
|
|
#include "packet-tcp.h"
|
|
#include "packet-gsm_map.h"
|
|
|
|
#define PNAME "OMA Internal Location Protocol"
|
|
#define PSNAME "ILP"
|
|
#define PFNAME "ilp"
|
|
|
|
void proto_register_ilp(void);
|
|
|
|
static dissector_handle_t rrlp_handle;
|
|
static dissector_handle_t lpp_handle;
|
|
|
|
/* IANA Registered Ports
|
|
* oma-ilp 7276/tcp OMA Internal Location
|
|
*/
|
|
static guint gbl_ilp_port = 7276;
|
|
|
|
/* Initialize the protocol and registered fields */
|
|
static int proto_ilp = -1;
|
|
|
|
|
|
#define ILP_HEADER_SIZE 2
|
|
|
|
static gboolean ilp_desegment = TRUE;
|
|
|
|
#include "packet-ilp-hf.c"
|
|
|
|
/* Initialize the subtree pointers */
|
|
static gint ett_ilp = -1;
|
|
#include "packet-ilp-ett.c"
|
|
|
|
/* Include constants */
|
|
#include "packet-ilp-val.h"
|
|
|
|
|
|
#include "packet-ilp-fn.c"
|
|
|
|
|
|
static guint
|
|
get_ilp_pdu_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset, void *data _U_)
|
|
{
|
|
/* PDU length = Message length */
|
|
return tvb_get_ntohs(tvb,offset);
|
|
}
|
|
|
|
static int
|
|
dissect_ilp_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data)
|
|
{
|
|
tcp_dissect_pdus(tvb, pinfo, tree, ilp_desegment, ILP_HEADER_SIZE,
|
|
get_ilp_pdu_len, dissect_ILP_PDU_PDU, data);
|
|
return tvb_captured_length(tvb);
|
|
}
|
|
|
|
void proto_reg_handoff_ilp(void);
|
|
|
|
/*--- proto_register_ilp -------------------------------------------*/
|
|
void proto_register_ilp(void) {
|
|
|
|
/* List of fields */
|
|
static hf_register_info hf[] = {
|
|
|
|
#include "packet-ilp-hfarr.c"
|
|
};
|
|
|
|
/* List of subtrees */
|
|
static gint *ett[] = {
|
|
&ett_ilp,
|
|
#include "packet-ilp-ettarr.c"
|
|
};
|
|
|
|
module_t *ilp_module;
|
|
|
|
|
|
/* Register protocol */
|
|
proto_ilp = proto_register_protocol(PNAME, PSNAME, PFNAME);
|
|
new_register_dissector("ilp", dissect_ilp_tcp, proto_ilp);
|
|
|
|
/* Register fields and subtrees */
|
|
proto_register_field_array(proto_ilp, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
ilp_module = prefs_register_protocol(proto_ilp,proto_reg_handoff_ilp);
|
|
|
|
prefs_register_bool_preference(ilp_module, "desegment_ilp_messages",
|
|
"Reassemble ILP messages spanning multiple TCP segments",
|
|
"Whether the ILP dissector should reassemble messages spanning multiple TCP segments."
|
|
" To use this option, you must also enable \"Allow subdissectors to reassemble TCP streams\" in the TCP protocol settings.",
|
|
&ilp_desegment);
|
|
|
|
/* Register a configuration option for port */
|
|
prefs_register_uint_preference(ilp_module, "tcp.port",
|
|
"ILP TCP Port",
|
|
"Set the TCP port for ILP messages(IANA registered port is 7276)",
|
|
10,
|
|
&gbl_ilp_port);
|
|
|
|
}
|
|
|
|
|
|
/*--- proto_reg_handoff_ilp ---------------------------------------*/
|
|
void
|
|
proto_reg_handoff_ilp(void)
|
|
{
|
|
static gboolean initialized = FALSE;
|
|
static dissector_handle_t ilp_handle;
|
|
static guint local_ilp_port;
|
|
|
|
if (!initialized) {
|
|
ilp_handle = find_dissector("ilp");
|
|
dissector_add_string("media_type","application/oma-supl-ilp", ilp_handle);
|
|
rrlp_handle = find_dissector("rrlp");
|
|
lpp_handle = find_dissector("lpp");
|
|
initialized = TRUE;
|
|
} else {
|
|
dissector_delete_uint("tcp.port", local_ilp_port, ilp_handle);
|
|
}
|
|
|
|
local_ilp_port = gbl_ilp_port;
|
|
dissector_add_uint("tcp.port", gbl_ilp_port, ilp_handle);
|
|
}
|