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/* packet-ranap.c
* Routines for UMTS Node B Application Part(RANAP) packet dissection
* Copyright 2005, Anders Broman <anders.broman[AT]ericsson.com>
*
* $Id$
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* References: 3GPP TS 25.413 version 6.6.0 Release
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <glib.h>
#include <epan/packet.h>
#include <epan/conversation.h>
#include <stdio.h>
#include <string.h>
#include <epan/emem.h>
#include <epan/strutil.h>
#include <epan/asn1.h>
#include <epan/prefs.h>
#include "packet-ber.h"
#include "packet-per.h"
#include "packet-gsm_map.h"
#include "packet-ranap.h"
#include "packet-e212.h"
#include "packet-sccp.h"
#ifdef _MSC_VER
/* disable: "warning C4146: unary minus operator applied to unsigned type, result still unsigned" */
#pragma warning(disable:4146)
#endif
#define SCCP_SSN_RANAP 142
#define PNAME "Radio Access Network Application Part"
#define PSNAME "RANAP"
#define PFNAME "ranap"
#include "packet-ranap-val.h"
static dissector_handle_t ranap_handle = NULL;
/* Initialize the protocol and registered fields */
static int proto_ranap = -1;
static int hf_ranap_imsi_digits = -1;
#include "packet-ranap-hf.c"
/* Initialize the subtree pointers */
static int ett_ranap = -1;
#include "packet-ranap-ett.c"
/* Global variables */
static guint32 ProcedureCode;
static guint32 ProtocolIE_ID;
static guint32 ProtocolExtensionID;
/* Initialise the Preferences */
static gint global_ranap_sccp_ssn = SCCP_SSN_RANAP;
/* Dissector tables */
static dissector_table_t ranap_ies_dissector_table;
static dissector_table_t ranap_ies_p1_dissector_table;
static dissector_table_t ranap_ies_p2_dissector_table;
static dissector_table_t ranap_extension_dissector_table;
static dissector_table_t ranap_proc_imsg_dissector_table;
static dissector_table_t ranap_proc_sout_dissector_table;
static dissector_table_t ranap_proc_uout_dissector_table;
static dissector_table_t ranap_proc_out_dissector_table;
static dissector_table_t nas_pdu_dissector_table;
static int dissect_ProtocolIEFieldValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
static int dissect_ProtocolIEFieldPairFirstValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
static int dissect_ProtocolIEFieldPairSecondValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
static int dissect_ProtocolExtensionFieldExtensionValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
static int dissect_InitiatingMessageValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
static int dissect_SuccessfulOutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
static int dissect_UnsuccessfulOutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
static int dissect_OutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
void proto_reg_handoff_ranap(void);
#include "packet-ranap-fn.c"
static int dissect_ProtocolIEFieldValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
return (dissector_try_port(ranap_ies_dissector_table, ProtocolIE_ID, tvb, pinfo, tree)) ? tvb_length(tvb) : 0;
}
static int dissect_ProtocolIEFieldPairFirstValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
return (dissector_try_port(ranap_ies_p1_dissector_table, ProtocolIE_ID, tvb, pinfo, tree)) ? tvb_length(tvb) : 0;
}
static int dissect_ProtocolIEFieldPairSecondValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
return (dissector_try_port(ranap_ies_p2_dissector_table, ProtocolIE_ID, tvb, pinfo, tree)) ? tvb_length(tvb) : 0;
}
static int dissect_ProtocolExtensionFieldExtensionValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
return (dissector_try_port(ranap_extension_dissector_table, ProtocolExtensionID, tvb, pinfo, tree)) ? tvb_length(tvb) : 0;
}
static int dissect_InitiatingMessageValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
return (dissector_try_port(ranap_proc_imsg_dissector_table, ProcedureCode, tvb, pinfo, tree)) ? tvb_length(tvb) : 0;
}
static int dissect_SuccessfulOutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
return (dissector_try_port(ranap_proc_sout_dissector_table, ProcedureCode, tvb, pinfo, tree)) ? tvb_length(tvb) : 0;
}
static int dissect_UnsuccessfulOutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
return (dissector_try_port(ranap_proc_uout_dissector_table, ProcedureCode, tvb, pinfo, tree)) ? tvb_length(tvb) : 0;
}
static int dissect_OutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
return (dissector_try_port(ranap_proc_out_dissector_table, ProcedureCode, tvb, pinfo, tree)) ? tvb_length(tvb) : 0;
}
static void
dissect_ranap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
proto_item *ranap_item = NULL;
proto_tree *ranap_tree = NULL;
/* make entry in the Protocol column on summary display */
if (check_col(pinfo->cinfo, COL_PROTOCOL))
col_set_str(pinfo->cinfo, COL_PROTOCOL, "RANAP");
/* create the ranap protocol tree */
ranap_item = proto_tree_add_item(tree, proto_ranap, tvb, 0, -1, FALSE);
ranap_tree = proto_item_add_subtree(ranap_item, ett_ranap);
dissect_RANAP_PDU_PDU(tvb, pinfo, ranap_tree);
if (pinfo->sccp_info) {
sccp_msg_info_t* sccp_msg = pinfo->sccp_info;
if (sccp_msg->data.co.assoc)
sccp_msg->data.co.assoc->payload = SCCP_PLOAD_RANAP;
if (! sccp_msg->data.co.label && ProcedureCode != 0xFFFFFFFF) {
const gchar* str = val_to_str(ProcedureCode, ranap_ProcedureCode_vals,"Unknown RANAP");
sccp_msg->data.co.label = se_strdup(str);
}
}
}
/*--- proto_register_ranap -------------------------------------------*/
void proto_register_ranap(void) {
module_t *ranap_module;
/* List of fields */
static hf_register_info hf[] = {
{ &hf_ranap_imsi_digits,
{ "IMSI digits", "ranap.imsi_digits",
FT_STRING, BASE_NONE, NULL, 0,
"IMSI digits", HFILL }},
#include "packet-ranap-hfarr.c"
};
/* List of subtrees */
static gint *ett[] = {
&ett_ranap,
#include "packet-ranap-ettarr.c"
};
/* Register protocol */
proto_ranap = proto_register_protocol(PNAME, PSNAME, PFNAME);
/* Register fields and subtrees */
proto_register_field_array(proto_ranap, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
/* Register dissector */
register_dissector("ranap", dissect_ranap, proto_ranap);
ranap_handle = find_dissector("ranap");
/* Register dissector tables */
ranap_ies_dissector_table = register_dissector_table("ranap.ies", "RANAP-PROTOCOL-IES", FT_UINT32, BASE_DEC);
ranap_ies_p1_dissector_table = register_dissector_table("ranap.ies.pair.first", "RANAP-PROTOCOL-IES-PAIR FirstValue", FT_UINT32, BASE_DEC);
ranap_ies_p2_dissector_table = register_dissector_table("ranap.ies.pair.second", "RANAP-PROTOCOL-IES-PAIR SecondValue", FT_UINT32, BASE_DEC);
ranap_extension_dissector_table = register_dissector_table("ranap.extension", "RANAP-PROTOCOL-EXTENSION", FT_UINT32, BASE_DEC);
ranap_proc_imsg_dissector_table = register_dissector_table("ranap.proc.imsg", "RANAP-ELEMENTARY-PROCEDURE InitiatingMessage", FT_UINT32, BASE_DEC);
ranap_proc_sout_dissector_table = register_dissector_table("ranap.proc.sout", "RANAP-ELEMENTARY-PROCEDURE SuccessfulOutcome", FT_UINT32, BASE_DEC);
ranap_proc_uout_dissector_table = register_dissector_table("ranap.proc.uout", "RANAP-ELEMENTARY-PROCEDURE UnsuccessfulOutcome", FT_UINT32, BASE_DEC);
ranap_proc_out_dissector_table = register_dissector_table("ranap.proc.out", "RANAP-ELEMENTARY-PROCEDURE Outcome", FT_UINT32, BASE_DEC);
nas_pdu_dissector_table = register_dissector_table("ranap.nas_pdu", "RANAP NAS PDU", FT_UINT8, BASE_DEC);
ranap_module = prefs_register_protocol(proto_ranap, proto_reg_handoff_ranap);
prefs_register_uint_preference(ranap_module, "sccp_ssn", "SCCP SSN for RANAP",
"The SCCP SubSystem Number for RANAP (default 142)", 10,
&global_ranap_sccp_ssn);
}
/*--- proto_reg_handoff_ranap ---------------------------------------*/
void
proto_reg_handoff_ranap(void)
{
static int initialized = FALSE;
static gint local_ranap_sccp_ssn;
if (!initialized) {
initialized = TRUE;
} else {
dissector_delete("sccp.ssn", local_ranap_sccp_ssn, ranap_handle);
}
dissector_add("sccp.ssn", global_ranap_sccp_ssn, ranap_handle);
local_ranap_sccp_ssn = global_ranap_sccp_ssn;
#include "packet-ranap-dis-tab.c"
}
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