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/* packet-gprscdr-template.c
* Copyright 2011 , Anders Broman <anders.broman [AT] ericsson.com>
*
* Updates and corrections:
* Copyright 2018-2022, Joakim Karlsson <oakimk@gmail.com>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
* References: 3GPP TS 32.298 V17.4.0
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/expert.h>
#include <epan/asn1.h>
#include "packet-ber.h"
#include "packet-gsm_map.h"
#include "packet-gsm_a_common.h"
#include "packet-e212.h"
#include "packet-gprscdr.h"
#include "packet-gtp.h"
#include "packet-gtpv2.h"
#define PNAME "GPRS CDR"
#define PSNAME "GPRSCDR"
#define PFNAME "gprscdr"
void proto_register_gprscdr(void);
/* Define the GPRS CDR proto */
static int proto_gprscdr = -1;
#include "packet-gprscdr-hf.c"
static int ett_gprscdr = -1;
static int ett_gprscdr_timestamp = -1;
static int ett_gprscdr_plmn_id = -1;
static int ett_gprscdr_pdp_pdn_type = -1;
static int ett_gprscdr_eps_qos_arp = -1;
static int ett_gprscdr_managementextension_information = -1;
static int ett_gprscdr_userlocationinformation = -1;
#include "packet-gprscdr-ett.c"
static expert_field ei_gprscdr_not_dissected = EI_INIT;
static expert_field ei_gprscdr_choice_not_found = EI_INIT;
/* Global variables */
static const char *obj_id = NULL;
static const value_string gprscdr_daylight_saving_time_vals[] = {
{0, "No adjustment"},
{1, "+1 hour adjustment for Daylight Saving Time"},
{2, "+2 hours adjustment for Daylight Saving Time"},
{3, "Reserved"},
{0, NULL}
};
/* 3GPP-RAT-Type
* 3GPP TS 29.061
*/
static const value_string gprscdr_rat_type_vals[] = {
{0, "Reserved"},
{1, "UTRAN"},
{2, "GERAN"},
{3, "WLAN"},
{4, "GAN"},
{5, "HSPA Evolution"},
{6, "EUTRAN"},
{7, "Virtual"},
{8, "EUTRAN-NB-IoT"},
{9, "LTE-M"},
{10, "NR"},
/* 11-100 Spare for future use TS 29.061 */
{101, "IEEE 802.16e"},
{102, "3GPP2 eHRPD"},
{103, "3GPP2 HRPD"},
/* 104-255 Spare for future use TS 29.061 */
{0, NULL}
};
static int
dissect_gprscdr_uli(tvbuff_t *tvb _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int type) {
proto_tree *ext_tree_uli;
guint length;
length = tvb_reported_length(tvb);
ext_tree_uli = proto_tree_add_subtree(tree, tvb, 0, length, ett_gprscdr_userlocationinformation, NULL, "UserLocationInformation");
switch (type) {
case 1:
/* For GGSN/EGGSN-CDR,
* this octet string is a 1:1 copy of the contents (i.e. starting with octet 4) of the
* User Location Information (ULI) information element specified in 29.060, ch7.7.51.
*/
dissect_gtp_uli(tvb, 0, actx->pinfo, ext_tree_uli, NULL);
break;
case 2:
/* For SGW/PGW-CDR,
* this octet string is a 1:1 copy of the contents (i.e. starting with octet 5) of the
* User Location Information (ULI) information element specified in 29.274, ch8.21.
*/
dissect_gtpv2_uli(tvb, actx->pinfo, ext_tree_uli, NULL, length, 0, 0, NULL);
break;
default:
proto_tree_add_expert(ext_tree_uli, actx->pinfo, &ei_gprscdr_not_dissected, tvb, 0, length);
break;
}
return length;
}
#include "packet-gprscdr-fn.c"
/* Register all the bits needed with the filtering engine */
void
proto_register_gprscdr(void)
{
/* List of fields */
static hf_register_info hf[] = {
#include "packet-gprscdr-hfarr.c"
};
/* List of subtrees */
static gint *ett[] = {
&ett_gprscdr,
&ett_gprscdr_timestamp,
&ett_gprscdr_plmn_id,
&ett_gprscdr_pdp_pdn_type,
&ett_gprscdr_eps_qos_arp,
&ett_gprscdr_managementextension_information,
&ett_gprscdr_userlocationinformation,
#include "packet-gprscdr-ettarr.c"
};
static ei_register_info ei[] = {
{ &ei_gprscdr_not_dissected, { "gprscdr.not_dissected", PI_UNDECODED, PI_WARN, "Not dissected", EXPFILL }},
{ &ei_gprscdr_choice_not_found, { "gprscdr.error.choice_not_found", PI_MALFORMED, PI_WARN, "GPRS CDR Error: This choice field(Record type) was not found", EXPFILL }},
};
expert_module_t* expert_gprscdr;
proto_gprscdr = proto_register_protocol(PNAME, PSNAME, PFNAME);
proto_register_field_array(proto_gprscdr, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
expert_gprscdr = expert_register_protocol(proto_gprscdr);
expert_register_field_array(expert_gprscdr, ei, array_length(ei));
}
/* The registration hand-off routine */
/*
* Editor modelines
*
* Local Variables:
* c-basic-offset: 2
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* ex: set shiftwidth=2 tabstop=8 expandtab:
* :indentSize=2:tabSize=8:noTabs=true:
*/
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