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/* packet-inap-template.c
* Routines for INAP
* Copyright 2004, Tim Endean <endeant@hotmail.com>
* Built from the gsm-map dissector Copyright 2004, Anders Broman <anders.broman@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: ETSI 300 374
* ITU Q.1218
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <glib.h>
#include <epan/packet.h>
#include <epan/prefs.h>
#include <epan/oids.h>
#include "epan/expert.h"
#include <epan/asn1.h>
#include <stdio.h>
#include <string.h>
#include "packet-ber.h"
#include "packet-inap.h"
#include "packet-q931.h"
#include "packet-e164.h"
#include "packet-isup.h"
#include "packet-tcap.h"
#define PNAME "Intelligent Network Application Protocol"
#define PSNAME "INAP"
#define PFNAME "inap"
/* Initialize the protocol and registered fields */
int proto_inap = -1;
/* include constants */
#include "packet-inap-val.h"
#include "packet-inap-hf.c"
#define MAX_SSN 254
static range_t *global_ssn_range;
static dissector_handle_t inap_handle;
/* Global variables */
static guint32 opcode=0;
static guint32 errorCode=0;
static int inap_opcode_type;
#define INAP_OPCODE_INVOKE 1
#define INAP_OPCODE_RETURN_RESULT 2
#define INAP_OPCODE_RETURN_ERROR 3
#define INAP_OPCODE_REJECT 4
/* Initialize the subtree pointers */
static gint ett_inap = -1;
static gint ett_inapisup_parameter = -1;
#include "packet-inap-ett.c"
#include "packet-inap-table.c"
const value_string inap_general_problem_strings[] = {
{0,"General Problem Unrecognized Component"},
{1,"General Problem Mistyped Component"},
{3,"General Problem Badly Structured Component"},
{0, NULL}
};
/* Forvard declarations */
static int dissect_invokeData(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_);
static int dissect_returnResultData(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_);
static int dissect_returnErrorData(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx);
#include "packet-inap-fn.c"
/*
TC-Invokable OPERATION ::=
{activateServiceFiltering | activityTest | analysedInformation |
analyseInformation | applyCharging | applyChargingReport |
assistRequestInstructions | callGap | callInformationReport |
callInformationRequest | cancel | cancelStatusReportRequest |
collectedInformation | collectInformation | connect | connectToResource |
continue | disconnectForwardConnection | establishTemporaryConnection |
eventNotificationCharging | eventReportBCSM | furnishChargingInformation |
holdCallInNetwork | initialDP | initiateCallAttempt | oAnswer |
oCalledPartyBusy | oDisconnect | oMidCall | oNoAnswer |
originationAttemptAuthorized | releaseCall | requestCurrentStatusReport |
requestEveryStatusChangeReport | requestFirstStatusMatchReport |
requestNotificationChargingEvent | requestReportBCSMEvent | resetTimer |
routeSelectFailure | selectFacility | selectRoute | sendChargingInformation
| serviceFilteringResponse | statusReport | tAnswer | tBusy | tDisconnect |
termAttemptAuthorized | tMidCall | tNoAnswer | playAnnouncement |
promptAndCollectUserInformation}
*/
#include "packet-inap-table2.c"
static guint8 inap_pdu_type = 0;
static guint8 inap_pdu_size = 0;
static void
dissect_inap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree)
{
proto_item *item=NULL;
proto_tree *tree=NULL;
int offset = 0;
asn1_ctx_t asn1_ctx;
asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);
if (check_col(pinfo->cinfo, COL_PROTOCOL))
{
col_set_str(pinfo->cinfo, COL_PROTOCOL, "INAP");
}
/* create display subtree for the protocol */
if(parent_tree){
item = proto_tree_add_item(parent_tree, proto_inap, tvb, 0, -1, FALSE);
tree = proto_item_add_subtree(item, ett_inap);
}
inap_pdu_type = tvb_get_guint8(tvb, offset)&0x0f;
/* Get the length and add 2 */
inap_pdu_size = tvb_get_guint8(tvb, offset+1)+2;
opcode = 0;
offset = dissect_inap_ROS(TRUE, tvb, offset, &asn1_ctx, tree, -1);
}
/*--- proto_reg_handoff_inap ---------------------------------------*/
static void range_delete_callback(guint32 ssn)
{
if (ssn) {
delete_itu_tcap_subdissector(ssn, inap_handle);
}
}
static void range_add_callback(guint32 ssn)
{
if (ssn) {
add_itu_tcap_subdissector(ssn, inap_handle);
}
}
void proto_reg_handoff_inap(void) {
static gboolean inap_prefs_initialized = FALSE;
static range_t *ssn_range;
if (!inap_prefs_initialized) {
inap_prefs_initialized = TRUE;
inap_handle = find_dissector("inap");
oid_add_from_string("Core-INAP-CS1-Codes","0.4.0.1.1.0.3.0");
}
else {
range_foreach(ssn_range, range_delete_callback);
g_free(ssn_range);
}
ssn_range = range_copy(global_ssn_range);
range_foreach(ssn_range, range_add_callback);
}
void proto_register_inap(void) {
module_t *inap_module;
/* List of fields */
static hf_register_info hf[] = {
#include "packet-inap-hfarr.c"
};
/* List of subtrees */
static gint *ett[] = {
&ett_inap,
&ett_inapisup_parameter,
#include "packet-inap-ettarr.c"
};
/* Register protocol */
proto_inap = proto_register_protocol(PNAME, PSNAME, PFNAME);
register_dissector("inap", dissect_inap, proto_inap);
/* Register fields and subtrees */
proto_register_field_array(proto_inap, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
/* Set default SSNs */
range_convert_str(&global_ssn_range, "106,241", MAX_SSN);
inap_module = prefs_register_protocol(proto_inap, proto_reg_handoff_inap);
prefs_register_obsolete_preference(inap_module, "tcap.itu_ssn");
prefs_register_obsolete_preference(inap_module, "tcap.itu_ssn1");
prefs_register_range_preference(inap_module, "ssn", "TCAP SSNs",
"TCAP Subsystem numbers used for INAP",
&global_ssn_range, MAX_SSN);
}
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