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wireshark/epan/dissectors/packet-gtpv2.c

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/* packet-gtpv2.c
*
* Routines for GTPv2 dissection
* Copyright 2009 - 2011, Anders Broman <anders.broman [at] ericcsson.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.
* Ref: 3GPP TS 29.274 version 8.1.1 Release 8 ETSI TS 129 274 V8.1.1 (2009-04)
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <glib.h>
#include <epan/packet.h>
#include <epan/asn1.h>
#include <epan/expert.h>
#include <epan/sminmpec.h>
#include "packet-gsm_a_common.h"
#include "packet-gsm_map.h"
#include "packet-e164.h"
#include "packet-e212.h"
#include "packet-s1ap.h"
#include "packet-ranap.h"
static dissector_handle_t nas_eps_handle;
/*GTPv2 Message->GTP Header(SB)*/
static int proto_gtpv2 = -1;
static int hf_gtpv2_reserved = -1;
static int hf_gtpv2_spare_half_octet = -1;
static int hf_gtpv2_spare_bits = -1;
static int hf_gtpv2_flags = -1;
static int hf_gtpv2_version = -1;
static int hf_gtpv2_p = -1;
static int hf_gtpv2_t = -1;
static int hf_gtpv2_message_type = -1;
static int hf_gtpv2_msg_length = -1;
static int hf_gtpv2_teid = -1;
static int hf_gtpv2_seq = -1;
static int hf_gtpv2_spare = -1;
static int hf_gtpv2_ie = -1;
static int hf_gtpv2_ie_len = -1;
static int hf_gtpv2_cr = -1;
static int hf_gtpv2_instance = -1;
static int hf_gtpv2_cause = -1;
static int hf_gtpv2_cause_cs = -1;
static int hf_gtpv2_cause_bce = -1;
static int hf_gtpv2_cause_pce = -1;
static int hf_gtpv2_cause_off_ie_t = -1;
static int hf_gtpv2_rec = -1;
/*Start SRVCC Messages*/
static int hf_gtpv2_stn_sr = -1;
static int hf_gtpv2_len_trans_con = -1;
static int hf_gtpv2_eksi = -1;
static int hf_gtpv2_ck = -1;
static int hf_gtpv2_ik = -1;
static int hf_gtpv2_len_ms_classmark2 = -1;
static int hf_gtpv2_len_ms_classmark3 = -1;
static int hf_gtpv2_len_supp_codec_list = -1;
static int hf_gtpv2_ksi = -1;
/*static int hf_gtpv2_kc = -1; */
static int hf_gtpv2_cksn = -1;
static int hf_gtpv2_srvcc_cause = -1;
static int hf_gtpv2_rnc_id = -1;
static int hf_gtpv2_lac = -1;
static int hf_gtpv2_sac = -1;
static int hf_gtpv2_tgt_g_cell_id = -1;
static int hf_gtpv2_teid_c = -1;
static int hf_gtpv2_sv_sti = -1;
static int hf_gtpv2_sv_ics = -1;
static int hf_gtpv2_sv_emind = -1;
/*End SRVCC Messages*/
static int hf_gtpv2_apn = -1;
static int hf_gtpv2_ebi = -1;
static int hf_gtpv2_daf = -1;
static int hf_gtpv2_dtf = -1;
static int hf_gtpv2_hi = -1;
static int hf_gtpv2_dfi = -1;
static int hf_gtpv2_oi = -1;
static int hf_gtpv2_isrsi = -1;
static int hf_gtpv2_israi = -1;
static int hf_gtpv2_sgwci = -1;
static int hf_gtpv2_sqci = -1;
static int hf_gtpv2_uimsi = -1;
static int hf_gtpv2_cfsi = -1;
static int hf_gtpv2_crsi = -1;
static int hf_gtpv2_pt = -1;
static int hf_gtpv2_ps = -1;
static int hf_gtpv2_si = -1;
static int hf_gtpv2_msv = -1;
static int hf_gtpv2_ccrsi = -1;
static int hf_gtpv2_pdn_type = -1;
static int hf_gtpv2_pdn_ipv4 = -1;
static int hf_gtpv2_pdn_ipv6_len = -1;
static int hf_gtpv2_pdn_ipv6 = -1;
static int hf_gtpv2_pdn_numbers_nsapi = -1;
static int hf_gtpv2_p_tmsi = -1;
static int hf_gtpv2_p_tmsi_sig = -1;
static int hf_gtpv2_rat_type = -1;
static int hf_gtpv2_uli_ecgi_flg = -1;
static int hf_gtpv2_uli_lai_flg = -1;
static int hf_gtpv2_uli_tai_flg = -1;
static int hf_gtpv2_uli_rai_flg = -1;
static int hf_gtpv2_uli_sai_flg = -1;
static int hf_gtpv2_uli_cgi_flg = -1;
static int hf_gtpv2_glt = -1;
static int hf_gtpv2_cng_rep_act = -1;
static int hf_gtpv2_selec_mode = -1;
static int hf_gtpv2_source_type = -1;
static int hf_gtpv2_f_teid_v4 = -1;
static int hf_gtpv2_f_teid_v6 = -1;
static int hf_gtpv2_f_teid_interface_type= -1;
static int hf_gtpv2_f_teid_gre_key= -1;
static int hf_gtpv2_f_teid_ipv4= -1;
static int hf_gtpv2_f_teid_ipv6= -1;
static int hf_gtpv2_tmsi = -1;
static int hf_gtpv2_hsgw_addr_f_len = -1;
static int hf_gtpv2_hsgw_addr_ipv4 = -1;
static int hf_gtpv2_hsgw_addr_ipv6 = -1;
static int hf_gtpv2_gre_key = -1;
static int hf_gtpv2_sgw_addr_ipv4 = -1;
static int hf_gtpv2_sgw_addr_ipv6 = -1;
static int hf_gtpv2_sgw_s1u_teid = -1;
static int hf_gtpv2_imsi= -1;
static int hf_gtpv2_ipv4_addr = -1;
static int hf_gtpv2_ambr_up= -1;
static int hf_gtpv2_ambr_down= -1;
static int hf_gtpv2_ip_address_ipv4= -1;
static int hf_gtpv2_ip_address_ipv6= -1;
static int hf_gtpv2_mei= -1;
/* Trace Information */
static int hf_gtpv2_tra_info = -1;
static int hf_gtpv2_tra_info_msc_momt_calls = -1;
static int hf_gtpv2_tra_info_msc_momt_sms = -1;
static int hf_gtpv2_tra_info_msc_lu_imsi_ad = -1;
static int hf_gtpv2_tra_info_msc_handovers = -1;
static int hf_gtpv2_tra_info_msc_ss = -1;
static int hf_gtpv2_tra_info_mgw_context = -1;
static int hf_gtpv2_tra_info_sgsn_pdp_context = -1;
static int hf_gtpv2_tra_info_sgsn_momt_sms = -1;
static int hf_gtpv2_tra_info_sgsn_rau_gprs_ad = -1;
static int hf_gtpv2_tra_info_sgsn_mbms = -1;
static int hf_gtpv2_tra_info_sgsn_reserved = -1;
static int hf_gtpv2_tra_info_ggsn_pdp = -1;
static int hf_gtpv2_tra_info_ggsn_mbms = -1;
static int hf_gtpv2_tra_info_bm_sc = -1;
static int hf_gtpv2_tra_info_mme_sgw_ss = -1;
static int hf_gtpv2_tra_info_mme_sgw_sr = -1;
static int hf_gtpv2_tra_info_mme_sgw_iataud = -1;
static int hf_gtpv2_tra_info_lne_msc_s = -1;
static int hf_gtpv2_tra_info_lne_mgw = -1;
static int hf_gtpv2_tra_info_lne_sgsn = -1;
static int hf_gtpv2_tra_info_lne_ggsn = -1;
static int hf_gtpv2_tra_info_lne_rnc = -1;
static int hf_gtpv2_tra_info_lne_bm_sc = -1;
static int hf_gtpv2_tra_info_lne_mme = -1;
static int hf_gtpv2_tra_info_lne_sgw = -1;
static int hf_gtpv2_tra_info_lne_pdn_gw = -1;
static int hf_gtpv2_tra_info_lne_enb = -1;
static int hf_gtpv2_tra_info_tdl = -1;
static int hf_gtpv2_tra_info_lmsc_a = -1;
static int hf_gtpv2_tra_info_lmsc_lu = -1;
static int hf_gtpv2_tra_info_lmsc_mc = -1;
static int hf_gtpv2_tra_info_lmsc_map_g = -1;
static int hf_gtpv2_tra_info_lmsc_map_b = -1;
static int hf_gtpv2_tra_info_lmsc_map_e = -1;
static int hf_gtpv2_tra_info_lmsc_map_f = -1;
static int hf_gtpv2_tra_info_lmsc_cap = -1;
static int hf_gtpv2_tra_info_lmsc_map_d = -1;
static int hf_gtpv2_tra_info_lmsc_map_c = -1;
static int hf_gtpv2_tra_info_lmgw_mc = -1;
static int hf_gtpv2_tra_info_lmgw_nb_up = -1;
static int hf_gtpv2_tra_info_lmgw_lu_up = -1;
static int hf_gtpv2_tra_info_lsgsn_gb = -1;
static int hf_gtpv2_tra_info_lsgsn_lu = -1;
static int hf_gtpv2_tra_info_lsgsn_gn = -1;
static int hf_gtpv2_tra_info_lsgsn_map_gr = -1;
static int hf_gtpv2_tra_info_lsgsn_map_gd = -1;
static int hf_gtpv2_tra_info_lsgsn_map_gf = -1;
static int hf_gtpv2_tra_info_lsgsn_gs = -1;
static int hf_gtpv2_tra_info_lsgsn_ge = -1;
static int hf_gtpv2_tra_info_lggsn_gn = -1;
static int hf_gtpv2_tra_info_lggsn_gi = -1;
static int hf_gtpv2_tra_info_lggsn_gmb = -1;
static int hf_gtpv2_tra_info_lrnc_lu = -1;
static int hf_gtpv2_tra_info_lrnc_lur = -1;
static int hf_gtpv2_tra_info_lrnc_lub = -1;
static int hf_gtpv2_tra_info_lrnc_uu = -1;
static int hf_gtpv2_tra_info_lbm_sc_gmb = -1;
static int hf_gtpv2_tra_info_lmme_s1_mme = -1;
static int hf_gtpv2_tra_info_lmme_s3 = -1;
static int hf_gtpv2_tra_info_lmme_s6a = -1;
static int hf_gtpv2_tra_info_lmme_s10 = -1;
static int hf_gtpv2_tra_info_lmme_s11 = -1;
static int hf_gtpv2_tra_info_lsgw_s4 = -1;
static int hf_gtpv2_tra_info_lsgw_s5 = -1;
static int hf_gtpv2_tra_info_lsgw_s8b = -1;
static int hf_gtpv2_tra_info_lsgw_s11 = -1;
static int hf_gtpv2_tra_info_lpdn_gw_s2a = -1;
static int hf_gtpv2_tra_info_lpdn_gw_s2b = -1;
static int hf_gtpv2_tra_info_lpdn_gw_s2c = -1;
static int hf_gtpv2_tra_info_lpdn_gw_s5 = -1;
static int hf_gtpv2_tra_info_lpdn_gw_s6c = -1;
static int hf_gtpv2_tra_info_lpdn_gw_gx = -1;
static int hf_gtpv2_tra_info_lpdn_gw_s8b = -1;
static int hf_gtpv2_tra_info_lpdn_gw_sgi = -1;
static int hf_gtpv2_tra_info_lenb_s1_mme = -1;
static int hf_gtpv2_tra_info_lenb_x2 = -1;
static int hf_gtpv2_tra_info_lenb_uu = -1;
static int hf_gtpv2_address_digits = -1;
static int hf_gtpv2_ti = -1;
static int hf_gtpv2_bearer_qos_pvi= -1;
static int hf_gtpv2_bearer_qos_pl= -1;
static int hf_gtpv2_bearer_qos_pci= -1;
static int hf_gtpv2_bearer_qos_label_qci = -1;
static int hf_gtpv2_bearer_qos_mbr_up = -1;
static int hf_gtpv2_bearer_qos_mbr_down = -1;
static int hf_gtpv2_bearer_qos_gbr_up = -1;
static int hf_gtpv2_bearer_qos_gbr_down = -1;
static int hf_gtpv2_flow_qos_label_qci = -1;
static int hf_gtpv2_flow_qos_mbr_up = -1;
static int hf_gtpv2_flow_qos_mbr_down = -1;
static int hf_gtpv2_flow_qos_gbr_up = -1;
static int hf_gtpv2_flow_qos_gbr_down = -1;
static int hf_gtpv2_delay_value = -1;
static int hf_gtpv2_charging_id = -1;
static int hf_gtpv2_charging_characteristic = -1;
static int hf_gtpv2_bearer_flag_ppc = -1;
static int hf_gtpv2_bearer_flag_vb = -1;
static int hf_gtpv2_ue_time_zone_dst = -1;
static int hf_gtpv2_fq_csid_type = -1;
static int hf_gtpv2_fq_csid_nr = -1;
static int hf_gtpv2_fq_csid_ipv4 = -1;
static int hf_gtpv2_fq_csid_ipv6 = -1;
static int hf_gtpv2_fq_csid_id = -1;
static int hf_gtpv2_complete_req_msg_type = -1;
static int hf_gtpv2_mme_grp_id = -1;
static int hf_gtpv2_mme_code = -1;
static int hf_gtpv2_m_tmsi = -1;
static int hf_gtpv2_container_type = -1;
static int hf_gtpv2_cause_type = -1;
static int hf_gtpv2_CauseRadioNetwork = -1;
static int hf_gtpv2_CauseTransport = -1;
static int hf_gtpv2_CauseNas = -1;
static int hf_gtpv2_CauseProtocol = -1;
static int hf_gtpv2_CauseMisc = -1;
static int hf_gtpv2_target_type = -1;
static int hf_gtpv2_macro_enodeb_id = -1;
static int hf_gtpv2_node_type= -1;
static int hf_gtpv2_fqdn = -1;
static int hf_gtpv2_enterprise_id = -1;
static int hf_gtpv2_apn_rest= -1;
static int hf_gtpv2_pti= -1;
static int hf_gtpv2_mm_context_sm = -1;
static int hf_gtpv2_mm_context_nhi = -1;
static int hf_gtpv2_mm_context_drxi = -1;
static int hf_gtpv2_mm_context_cksn = -1;
static int hf_gtpv2_mm_context_cksn_ksi = -1;
static int hf_gtpv2_mm_context_ksi_a= -1;
static int hf_gtpv2_mm_context_ksi = -1;
static int hf_gtpv2_mm_context_nr_tri = -1;
static int hf_gtpv2_mm_context_nr_qui = -1;
static int hf_gtpv2_mm_context_nr_qua = -1;
static int hf_gtpv2_mm_context_unipa = -1;
static int hf_gtpv2_mm_context_unc = -1;
static int hf_gtpv2_mm_context_nas_dl_cnt = -1;
static int hf_gtpv2_mm_context_nas_ul_cnt = -1;
static int hf_gtpv2_uli_cgi_lac= -1;
static int hf_gtpv2_uli_cgi_ci= -1;
static int hf_gtpv2_uli_sai_lac= -1;
static int hf_gtpv2_uli_sai_sac= -1;
static int hf_gtpv2_uli_rai_lac= -1;
static int hf_gtpv2_uli_rai_rac= -1;
static int hf_gtpv2_uli_tai_tac= -1;
static int hf_gtpv2_uli_ecgi_eci= -1;
static int hf_gtpv2_uli_lai_lac = -1;
static int hf_gtpv2_uli_ecgi_eci_spare= -1;
static int hf_gtpv2_nsapi = -1;
static int hf_gtpv2_bearer_control_mode= -1;
static gint ett_gtpv2 = -1;
static gint ett_gtpv2_flags = -1;
static gint ett_gtpv2_ie = -1;
static gint ett_gtpv2_uli_flags = -1;
static gint ett_gtpv2_uli_field = -1;
static gint ett_gtpv2_bearer_ctx = -1;
static gint ett_gtpv2_PDN_conn = -1;
static gint ett_gtpv2_mm_context_flag = -1;
static gint ett_gtpv2_pdn_numbers_nsapi = -1;
static gint ett_gtpv2_tra_info_trigg = -1;
static gint ett_gtpv2_tra_info_trigg_msc_server = -1;
static gint ett_gtpv2_tra_info_trigg_mgw = -1;
static gint ett_gtpv2_tra_info_trigg_sgsn = -1;
static gint ett_gtpv2_tra_info_trigg_ggsn = -1;
static gint ett_gtpv2_tra_info_trigg_bm_sc = -1;
static gint ett_gtpv2_tra_info_trigg_sgw_mme = -1;
static gint ett_gtpv2_tra_info_interfaces = -1;
static gint ett_gtpv2_tra_info_interfaces_imsc_server = -1;
static gint ett_gtpv2_tra_info_interfaces_lmgw = -1;
static gint ett_gtpv2_tra_info_interfaces_lsgsn = -1;
static gint ett_gtpv2_tra_info_interfaces_lggsn = -1;
static gint ett_gtpv2_tra_info_interfaces_lrnc = -1;
static gint ett_gtpv2_tra_info_interfaces_lbm_sc = -1;
static gint ett_gtpv2_tra_info_interfaces_lmme = -1;
static gint ett_gtpv2_tra_info_interfaces_lsgw = -1;
static gint ett_gtpv2_tra_info_interfaces_lpdn_gw = -1;
static gint ett_gtpv2_tra_info_interfaces_lpdn_lenb = -1;
static gint ett_gtpv2_tra_info_ne_types = -1;
static gint ett_gtpv2_rai = -1;
static gint ett_gtpv2_ms_mark = -1;
static gint ett_gtpv2_stn_sr = -1;
static gint ett_gtpv2_supp_codec_list = -1;
/* Definition of User Location Info (AVP 22) masks */
#define GTPv2_ULI_CGI_MASK 0x01
#define GTPv2_ULI_SAI_MASK 0x02
#define GTPv2_ULI_RAI_MASK 0x04
#define GTPv2_ULI_TAI_MASK 0x08
#define GTPv2_ULI_ECGI_MASK 0x10
#define GTPv2_ULI_LAI_MASK 0x20
#define GTPV2_CREATE_SESSION_REQUEST 32
#define GTPV2_CREATE_SESSION_RESPONSE 33
#define GTPV2_FORWARD_RELOCATION_REQ 133
#define GTPV2_FORWARD_CTX_NOTIFICATION 137
static void dissect_gtpv2_ie_common(tvbuff_t * tvb, packet_info * pinfo _U_, proto_tree * tree, gint offset, guint8 message_type);
/*Message Types for GTPv2 (Refer Pg19 29.274) (SB)*/
static const value_string gtpv2_message_type_vals[] = {
{0, "Reserved"},
{1, "Echo Request"},
{2, "Echo Response"},
{3, "Version Not Supported Indication"},
/* 4-24 Reserved for S101 interface TS 29.276 */
{4, "Node Alive Request"},
{5, "Node Alive Response"},
{6, "Redirection Request"},
{7, "Redirection Response"},
/* 25-31 Reserved for Sv interface TS 29.280 */
/*Start SRVCC Messages ETSI TS 129 280 V10.1.0 (2011-06) 5.2.1*/
{25, "SRVCC PS to CS Request"},
{26, "SRVCC PS to CS Response"},
{27, "SRVCC PS to CS Complete Notification"},
{28, "SRVCC PS to CS Complete Acknowledge"},
{29, "SRVCC PS to CS Cancel Notification"},
{30, "SRVCC PS to CS Cancel Acknowledge"},
{31, "For Future Sv interface use"},
/*End SRVCC Messages*/
/* SGSN/MME to PGW (S4/S11, S5/S8) */
{32, "Create Session Request"},
{33, "Create Session Response"},
{34, "Modify Bearer Request"},
{35, "Modify Bearer Response"},
{36, "Delete Session Request"},
{37, "Delete Session Response"},
/* SGSN to PGW (S4, S5/S8) */
{38, "Change Notification Request"},
{39, "Change Notification Response"},
/* 40-63 For future use */
/* Messages without explicit response */
{64, "Modify Bearer Command"}, /* (MME/SGSN to PGW -S11/S4, S5/S8) */
{65, "Modify Bearer Failure Indication"}, /*(PGW to MME/SGSN -S5/S8, S11/S4) */
{66, "Delete Bearer Command"}, /* (MME to PGW -S11, S5/S8) */
{67, "Delete Bearer Failure Indication"}, /* (PGW to MME -S5/S8, S11) */
{68, "Bearer Resource Command"}, /* (MME/SGSN to PGW -S11/S4, S5/S8) */
{69, "Bearer Resource Failure Indication"}, /* (PGW to MME/SGSN -S5/S8, S11/S4) */
{70, "Downlink Data Notification Failure Indication"}, /*(SGSN/MME to SGW -S4/S11) */
{71, "Trace Session Activation"},
{72, "Trace Session Deactivation"},
{73, "Stop Paging Indication"},
/* 74-94 For future use */
/* PDN-GW to SGSN/MME (S5/S8, S4/S11) */
{95, "Create Bearer Request"},
{96, "Create Bearer Response"},
{97, "Update Bearer Request"},
{98, "Update Bearer Response"},
{99, "Delete Bearer Request"},
{100, "Delete Bearer Response"},
/* PGW to MME, MME to PGW, SGW to PGW, SGW to MME (S5/S8, S11) */
{101, "Delete PDN Connection Set Request"},
{102, "Delete PDN Connection Set Response"},
/* 103-127 For future use */
/* MME to MME, SGSN to MME, MME to SGSN, SGSN to SGSN (S3/10/S16) */
{128, "Identification Request"},
{129, "Identification Response"},
{130, "Context Request"},
{131, "Context Response"},
{132, "Context Acknowledge"},
{133, "Forward Relocation Request"},
{134, "Forward Relocation Response"},
{135, "Forward Relocation Complete Notification"},
{136, "Forward Relocation Complete Acknowledge"},
{137, "Forward Access Context Notification"},
{138, "Forward Access Context Acknowledge"},
{139, "Relocation Cancel Request"},
{140, "Relocation Cancel Response"},
{141, "Configuration Transfer Tunnel"},
/* 142-148 For future use */
/* SGSN to MME, MME to SGSN (S3)*/
{149, "Detach Notification"},
{150, "Detach Acknowledge"},
{151, "CS Paging Indication"},
{152, "RAN Information Relay"},
{153, "Alert MME Notification"},
{154, "Alert MME Acknowledge"},
{155, "UE Activity Notification"},
{156, "UE Activity Acknowledge"},
/* 157 to 159 For future use */
/* MME to SGW (S11) */
{160, "Create Forwarding Tunnel Request"},
{161, "Create Forwarding Tunnel Response"},
{162, "Suspend Notification"},
{163, "Suspend Acknowledge"},
{164, "Resume Notification"},
{165, "Resume Acknowledge"},
{166, "Create Indirect Data Forwarding Tunnel Request"},
{167, "Create Indirect Data Forwarding Tunnel Response"},
{168, "Delete Indirect Data Forwarding Tunnel Request"},
{169, "Delete Indirect Data Forwarding Tunnel Response"},
{170, "Release Access Bearers Request"},
{171, "Release Access Bearers Response"},
/* 172-175 For future use */
/* SGW to SGSN/MME (S4/S11) */
{176, "Downlink Data Notification"},
{177, "Downlink Data Notification Acknowledgement"},
/* SGW to SGSN (S4) */
{178, "Update Bearer Complete"},
/* 179-191 For future use */
/* Other */
{200, "Update PDN Connection Set Request"},
{201, "Update PDN Connection Set Response"},
/* 202 to 230 For future use */
/* MBMS GW to MME/SGSN (Sm/Sn) */
{231, "MBMS Session Start Request"},
{323, "MBMS Session Start Response"},
{233, "MBMS Session Update Request"},
{234, "MBMS Session Update Response"},
{235, "MBMS Session Stop Request"},
{236, "MBMS Session Stop Response"},
/* 237 to 239 For future use */
/* 240-255 Reserved for GTP-U TS 29.281 [13] */
{240, "Data Record Transfer Request"},
{241, "Data Record Transfer Response"},
{0, NULL}
};
#define GTPV2_IE_RESERVED 0
#define GTPV2_IE_IMSI 1
#define GTPV2_IE_CAUSE 2
#define GTPV2_REC_REST_CNT 3
/*Start SRVCC Messages*/
#define GTPV2_IE_STN_SR 51
#define GTPV2_IE_SRC_TGT_TRANS_CON 52
#define GTPV2_IE_TGT_SRC_TRANS_CON 53
#define GTPV2_IE_MM_CON_EUTRAN_SRVCC 54
#define GTPV2_IE_MM_CON_UTRAN_SRVCC 55
#define GTPV2_IE_SRVCC_CAUSE 56
#define GTPV2_IE_TGT_RNC_ID 57
#define GTPV2_IE_TGT_GLOGAL_CELL_ID 58
#define GTPV2_IE_TEID_C 59
#define GTPV2_IE_SV_FLAGS 60
#define GTPV2_IE_SAI 61
/* 61 - 70 for future sv interface use*/
/*End SRVCC Messages*/
#define GTPV2_APN 71
#define GTPV2_AMBR 72
#define GTPV2_EBI 73
#define GTPV2_IP_ADDRESS 74
#define GTPV2_MEI 75
#define GTPV2_IE_MSISDN 76
#define GTPV2_INDICATION 77
#define GTPV2_PCO 78
#define GTPV2_PAA 79
#define GTPV2_BEARER_QOS 80
#define GTPV2_IE_FLOW_QOS 81
#define GTPV2_IE_RAT_TYPE 82
#define GTPV2_IE_SERV_NET 83
#define GTPV2_IE_BEARER_TFT 84
#define GTPV2_IE_TAD 85
#define GTPV2_IE_ULI 86
#define GTPV2_IE_F_TEID 87
#define GTPV2_IE_TMSI 88
#define GTPV2_IE_GLOBAL_CNID 89
#define GTPV2_IE_S103PDF 90
#define GTPV2_IE_S1UDF 91
#define GTPV2_IE_DEL_VAL 92
#define GTPV2_IE_BEARER_CTX 93
#define GTPV2_IE_CHAR_ID 94
#define GTPV2_IE_CHAR_CHAR 95
#define GTPV2_IE_TRA_INFO 96
#define GTPV2_BEARER_FLAG 97
/* define GTPV2_IE_PAGING_CAUSE 98 (void) */
#define GTPV2_IE_PDN_TYPE 99
#define GTPV2_IE_PTI 100
#define GTPV2_IE_DRX_PARAM 101
#define GTPV2_IE_UE_NET_CAPABILITY 102
#define GTPV2_IE_MM_CONTEXT_GSM_T 103
#define GTPV2_IE_MM_CONTEXT_UTMS_CQ 104
#define GTPV2_IE_MM_CONTEXT_GSM_CQ 105
#define GTPV2_IE_MM_CONTEXT_UTMS_Q 106
#define GTPV2_IE_MM_CONTEXT_EPS_QQ 107
#define GTPV2_IE_MM_CONTEXT_UTMS_QQ 108
#define GTPV2_IE_PDN_CONNECTION 109
#define GTPV2_IE_PDN_NUMBERS 110
#define GTPV2_IE_P_TMSI 111
#define GTPV2_IE_P_TMSI_SIG 112
#define GTPV2_IE_HOP_COUNTER 113
#define GTPV2_IE_UE_TIME_ZONE 114
#define GTPV2_IE_TRACE_REFERENCE 115
#define GTPV2_IE_COMPLETE_REQUEST_MSG 116
#define GTPV2_IE_GUTI 117
#define GTPV2_IE_F_CONTAINER 118
#define GTPV2_IE_F_CAUSE 119
#define GTPV2_IE_SEL_PLMN_ID 120
#define GTPV2_IE_TARGET_ID 121
/* GTPV2_IE_NSAPI 122 */
#define GTPV2_IE_PKT_FLOW_ID 123
#define GTPV2_IE_RAB_CONTEXT 124
#define GTPV2_IE_S_RNC_PDCP_CTX_INFO 125
#define GTPV2_IE_UDP_S_PORT_NR 126
#define GTPV2_IE_APN_RESTRICTION 127
#define GTPV2_IE_SEL_MODE 128
#define GTPV2_IE_SOURCE_IDENT 129
#define GTPV2_IE_BEARER_CONTROL_MODE 130
#define GTPV2_IE_CNG_REP_ACT 131
#define GTPV2_IE_FQ_CSID 132
#define GTPV2_IE_CHANNEL_NEEDED 133
#define GTPV2_IE_EMLPP_PRI 134
#define GTPV2_IE_NODE_TYPE 135
#define GTPV2_IE_FQDN 136
#define GTPV2_IE_TI 137
#define GTPV2_IE_PRIVATE_EXT 255
#define SPARE 0X0
#define CREATE_NEW_TFT 0X20
#define DELETE_TFT 0X40
#define ADD_PACKET_FILTERS_TFT 0X60
#define REPLACE_PACKET_FILTERS_TFT 0X80
#define DELETE_PACKET_FILTERS_TFT 0XA0
#define NO_TFT_OPERATION 0XC0
#define RESERVED 0XE0
/* Table 8.1-1: Information Element types for GTPv2 */
static const value_string gtpv2_element_type_vals[] = {
{0, "Reserved"},
{1, "International Mobile Subscriber Identity (IMSI)"}, /* Variable Length / 8.3 */
{2, "Cause"}, /* Variable Length / 8.4 */
{3, "Recovery (Restart Counter)"}, /* Variable Length / 8.5 */
/* 4-50 Reserved for S101 interface Extendable / See 3GPP TS 29.276 [14] */
/* 51-70 Reserved for Sv interface Extendable / See 3GPP TS 29.280 [15] */
/*Start SRVCC Messages ETSI TS 129 280 V10.1.0 (2011-06) 6.1*/
{51, "STN-SR"}, /* Variable Length / 6.2 */
{52, "Source to Target Transparent Container"}, /* Variable Length / 6.3 */
{53, "Target to Source Transparent Container"}, /* Variable Length / 6.4 */
{54, "MM Context for E-UTRAN SRVCC"}, /* Variable Length / 6.5 */
{55, "MM Context for UTRAN SRVCC"}, /* Variable Length / 6.6 */
{56, "SRVCC Cause"}, /* Fixed Length / 6.7 */
{57, "Target RNC ID"}, /* Variable Length / 6.8 */
{58, "Target Global Cell ID"}, /* Variable Length / 6.9 */
{59, "TEID-C"}, /* Extendable / 6.10 */
{60, "Sv Flags"}, /* Extendable / 6.11 */
{61, "Service Area Identifier"}, /* Extendable / 6.12 */
/* 62-70 For future Sv interface use */
/*End SRVCC Messages*/
{71, "Access Point Name (APN)"}, /* Variable Length / 8.6 */
{72, "Aggregate Maximum Bit Rate (AMBR)"}, /* Fixed Length / 8.7 */
{73, "EPS Bearer ID (EBI)"}, /* Extendable / 8.8 */
{74, "IP Address"}, /* Extendable / 8.9 */
{75, "Mobile Equipment Identity (MEI)"}, /* Variable Length / 8.10 */
{76, "MSISDN"}, /* Variable Length / 8.11 */
{77, "Indication"}, /* Extendable / 8.12 */
{78, "Protocol Configuration Options (PCO)"}, /* Variable Length / 8.13 */
{79, "PDN Address Allocation (PAA)"}, /* Variable Length / 8.14 */
{80, "Bearer Level Quality of Service (Bearer QoS)"}, /* Variable Length / 8.15 */
{81, "Flow Quality of Service (Flow QoS)"}, /* Extendable / 8.16 */
{82, "RAT Type"}, /* Extendable / 8.17 */
{83, "Serving Network"}, /* Extendable / 8.18 */
{84, "EPS Bearer Level Traffic Flow Template (Bearer TFT)"}, /* Variable Length / 8.19 */
{85, "Traffic Aggregation Description (TAD)"}, /* Variable Length / 8.20 */
{86, "User Location Info (ULI)"}, /* Variable Length / 8.21 */
{87, "Fully Qualified Tunnel Endpoint Identifier (F-TEID)"}, /* Extendable / 8.22 */
{88, "TMSI"}, /* Variable Length / 8.23 */
{89, "Global CN-Id"}, /* Variable Length / 8.24 */
{90, "S103 PDN Data Forwarding Info (S103PDF)"}, /* Variable Length / 8.25 */
{91, "S1-U Data Forwarding Info (S1UDF)"}, /* Variable Length/ 8.26 */
{92, "Delay Value"}, /* Extendable / 8.27 */
{93, "Bearer Context"}, /* Extendable / 8.28 */
{94, "Charging ID"}, /* Extendable / 8.29 */
{95, "Charging Characteristics"}, /* Extendable / 8.30 */
{96, "Trace Information"}, /* Extendable / 8.31 */
{97, "Bearer Flags"}, /* Extendable / 8.32 */
{98, "Paging Cause"}, /* Variable Length / 8.33 */
{99, "PDN Type"}, /* Extendable / 8.34 */
{100, "Procedure Transaction ID"}, /* Extendable / 8.35 */
{101, "DRX Parameter"}, /* Variable Length/ 8.36 */
{102, "UE Network Capability"}, /* Variable Length / 8.37 */
{103, "MM Context (GSM Key and Triplets)"}, /* Variable Length / 8.38 */
{104, "MM Context (UMTS Key, Used Cipher and Quintuplets)"}, /* Variable Length / 8.38 */
{105, "MM Context (GSM Key, Used Cipher and Quintuplets)"}, /* Variable Length / 8.38 */
{106, "MM Context (UMTS Key and Quintuplets)"}, /* Variable Length / 8.38 */
{107, "MM Context (EPS Security Context, Quadruplets and Quintuplets)"}, /* Variable Length / 8.38 */
{108, "MM Context (UMTS Key, Quadruplets and Quintuplets)"}, /* Variable Length / 8.38 */
{109, "PDN Connection"}, /* Extendable / 8.39 */
{110, "PDU Numbers"}, /* Extendable / 8.40 */
{111, "P-TMSI"}, /* Variable Length / 8.41 */
{112, "P-TMSI Signature"}, /* Variable Length / 8.42 */
{113, "Hop Counter"}, /* Extendable / 8.43 */
{114, "UE Time Zone"}, /* Variable Length / 8.44 */
{115, "Trace Reference"}, /* Fixed Length / 8.45 */
{116, "Complete Request Message"}, /* Variable Length / 8.46 */
{117, "GUTI"}, /* Variable Length / 8.47 */
{118, "F-Container"}, /* Variable Length / 8.48 */
{119, "F-Cause"}, /* Variable Length / 8.49 */
{120, "Selected PLMN ID"}, /* Variable Length / 8.50 */
{121, "Target Identification"}, /* Variable Length / 8.51 */
{122, "NSAPI"}, /* Extendable / 8.52 */
{123, "Packet Flow ID"}, /* Variable Length / 8.53 */
{124, "RAB Context"}, /* Fixed Length / 8.54 */
{125, "Source RNC PDCP Context Info"}, /* Variable Length / 8.55 */
{126, "UDP Source Port Number"}, /* Extendable / 8.56 */
{127, "APN Restriction"}, /* Extendable / 8.57 */
{128, "Selection Mode"}, /* Extendable / 8.58 */
{129, "Source Identification"}, /* Variable Length / 8.50 */
{130, "Bearer Control Mode"}, /* Extendable / 8.60 */
{131, "Change Reporting Action"}, /* Variable Length / 8.61 */
{132, "Fully Qualified PDN Connection Set Identifier (FQ-CSID)"}, /* Variable Length / 8.62 */
{133, "Channel needed"}, /* Extendable / 8.63 */
{134, "eMLPP Priority"}, /* Extendable / 8.64 */
{135, "Node Type"}, /* Extendable / 8.65 */
{136, "Fully Qualified Domain Name (FQDN)"}, /* Variable Length / 8.66 */
{137, "Transaction Identifier (TI)"}, /* Variable Length / 8.68 */
{138, "MBMS Session"}, /* Duration Extendable / 8.69 */
{139, "MBMS Service Area"}, /* Extendable / 8.70 */
{140, "MBMS Session Identifier"}, /* Extendable / 8.71 */
{141, "MBMS Flow Identifier"}, /* Extendable / 8.72 */
{142, "MBMS IP Multicast Distribution"}, /* Extendable / 8.73 */
{143, "MBMS Distribution Acknowledge"}, /* Extendable / 8.74 */
{144, "RFSP Index"}, /* Fixed Length / 8.77 */
{145, "User CSG Information (UCI)"}, /* Extendable / 8.75 */
{146, "CSG Information Reporting Action"}, /* Extendable / 8.76 */
{147, "CSG ID"}, /* Extendable / 8.78 */
{148, "CSG Membership Indication (CMI)"}, /* Extendable / 8.79 */
{149, "Service indicator"}, /* Fixed Length / 8.80 */
{150, "Detach Type"}, /* Fixed Length / 8.81 */
{151, "Local Distiguished Name (LDN)"}, /* Variable / 8.82 */
{152, "Node Features"}, /* Extendable / 8.83 */
{153, "MBMS Time to Data Transfer"}, /* Extendable / 8.84 */
{154, "Throttling"}, /* Extendable / 8.85 */
{155, "Allocation/Retention Priority (ARP)"}, /* Extendable / 8.86 */
/* 156 to 254 Spare. For future use. */ /* For future use. FFS */
{255, "Private Extension"}, /* Extension Extendable / 8.67 */
{0, NULL}
};
/* Code to dissect IE's */
static void
dissect_gtpv2_unknown(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
proto_item *expert_item;
expert_item = proto_tree_add_text(tree, tvb, 0, length, "IE data not dissected yet");
expert_add_info_format(pinfo, expert_item, PI_PROTOCOL, PI_NOTE, "IE data not dissected yet");
PROTO_ITEM_SET_GENERATED(expert_item);
}
/*
* 8.3 International Mobile Subscriber Identity (IMSI)
*
* IMSI is defined in 3GPP TS 23.003
* Editor's note: IMSI coding will be defined in 3GPP TS 24.301
* Editor's note: In the first release of GTPv2 spec (TS 29.274v8.0.0) n = 8.
* That is, the overall length of the IE is 11 octets.
*/
static void
dissect_gtpv2_imsi(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
int offset= 0;
const gchar *imsi_str;
/* Fetch the BCD encoded digits from tvb low half byte, formating the digits according to
* a default digit set of 0-9 returning "?" for overdecadic digits a pointer to the EP
* allocated string will be returned.
*/
imsi_str = tvb_bcd_dig_to_ep_str( tvb, offset, length, NULL, ENC_BIG_ENDIAN);
proto_tree_add_string(tree, hf_gtpv2_imsi, tvb, offset, length, imsi_str);
proto_item_append_text(item, "%s", imsi_str);
}
/*
* 8.4 Cause
*/
/* Table 8.4-1: Cause values */
static const value_string gtpv2_cause_vals[] = {
{0, "Reserved"},
/* Request */
{1, "Paging Cause"},
{2, "Local Detach"},
{3, "Complete Detach"},
{4, "RAT changed from 3GPP to Non-3GPP"},
{5, "ISR is activated"},
{6, "Error Indication received from RNC/eNodeB"},
{7, "IMSI Detach Only"},
{8, "Reactivation Requested"},
{9, "PDN reconnection to this APN disallowed"},
{10, "Access changed from Non-3GPP to 3GPP"},
/* 11-15 Spare. This value range is reserved for Cause values in a request message */
{11, "Spare"},
{12, "Spare"},
{13, "Spare"},
{14, "Spare"},
{15, "Spare"},
/* Acceptance Response */
{16, "Request accepted"},
{17, "Request accepted partially"},
{18, "New PDN type due to network preference"},
{19, "New PDN type due to single address bearer only"},
/* 20-63 Spare. This value range is reserved for Cause values in acceptance response message */
/* Rejection Response */
{20, "Spare"},
{21, "Spare"},
{22, "Spare"},
{23, "Spare"},
{24, "Spare"},
{25, "Spare"},
{26, "Spare"},
{27, "Spare"},
{28, "Spare"},
{29, "Spare"},
{30, "Spare"},
{31, "Spare"},
{32, "Spare"},
{33, "Spare"},
{34, "Spare"},
{35, "Spare"},
{36, "Spare"},
{37, "Spare"},
{38, "Spare"},
{39, "Spare"},
{40, "Spare"},
{41, "Spare"},
{42, "Spare"},
{43, "Spare"},
{44, "Spare"},
{45, "Spare"},
{46, "Spare"},
{47, "Spare"},
{48, "Spare"},
{49, "Spare"},
{50, "Spare"},
{51, "Spare"},
{52, "Spare"},
{53, "Spare"},
{54, "Spare"},
{55, "Spare"},
{56, "Spare"},
{57, "Spare"},
{58, "Spare"},
{59, "Spare"},
{60, "Spare"},
{61, "Spare"},
{62, "Spare"},
{63, "Spare"},
{64, "Context Not Found"},
{65, "Invalid Message Format"},
{66, "Version not supported by next peer"},
{67, "Invalid length"},
{68, "Service not supported"},
{69, "Mandatory IE incorrect"},
{70, "Mandatory IE missing"},
{71, "Optional IE incorrect"},
{72, "System failure"},
{73, "No resources available"},
{74, "Semantic error in the TFT operation"},
{75, "Syntactic error in the TFT operation"},
{76, "Semantic errors in packet filter(s)"},
{77, "Syntactic errors in packet filter(s)"},
{78, "Missing or unknown APN"},
{79, "Unexpected repeated IE"},
{80, "GRE key not found"},
{81, "Reallocation failure"},
{82, "Denied in RAT"},
{83, "Preferred PDN type not supported"},
{84, "All dynamic addresses are occupied"},
{85, "UE context without TFT already activated"},
{86, "Protocol type not supported"},
{87, "UE not responding"},
{88, "UE refuses"},
{89, "Service denied"},
{90, "Unable to page UE"},
{91, "No memory available"},
{92, "User authentication failed"},
{93, "APN access denied - no subscription"},
{94, "Request rejected"},
{95, "P-TMSI Signature mismatch"},
{96, "IMSI not known"},
{97, "Semantic error in the TAD operation"},
{98, "Syntactic error in the TAD operation"},
{99, "Reserved Message Value Received"},
{100, "PGW not responding"},
{101, "Collision with network initiated request"},
{102, "Unable to page UE due to Suspension"},
{103, "Conditional IE missing"},
{104, "APN Restriction type Incompatible with currently active PDN connection"},
{105, "Invalid overall length of the triggered response message and a piggybacked initial message"},
{106, "Data forwarding not supported"},
{107, "Invalid reply from remote peer"},
{108, "Fallback to GTPv1"},
{109, "Invalid peer"},
{110, "Temporarily rejected due to handover procedure in progress"},
{111, "Modifications not limited to S1-U bearers"},
{112, "Request rejected for a PMIPv6 reason "},
/* 113-239 Spare. For future use in a triggered/response message */
/* 240-255 Spare. For future use in an initial/request message */
{0, NULL}
};
static value_string_ext gtpv2_cause_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_cause_vals);
/* Table 8.4-1: CS (Cause Source) */
static const true_false_string gtpv2_cause_cs = {
"Originated by remote node",
"Originated by node sending the message",
};
static void
dissect_gtpv2_cause(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
guint8 tmp;
/* Cause value octet 5 */
tmp = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_cause, tvb, offset, 1, ENC_BIG_ENDIAN);
/* Add Cause to ie_tree */
proto_item_append_text(item, "%s (%u)", val_to_str_ext_const(tmp, &gtpv2_cause_vals_ext, "Unknown"),tmp);
offset++;
/* Octet 6 Spare PCE BCE CS */
proto_tree_add_bits_item(tree, hf_gtpv2_spare_bits, tvb, offset<<3, 5, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_cause_pce, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_cause_bce, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_cause_cs, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* If n = 2, a = 0 and the Cause IE shall be 6 octets long.
* Therefore, octets "a(n+1) to a(n+4)" will not be present.
* If n = 6, a = 1 and the Cause IE will be 10 octets long.
*/
if ( length == 2 ) {
return;
}
/*
* If the rejection is due to a mandatory IE or a verifiable conditional IE is faulty
* or missing, the offending IE shall be included within an additional field "a(n+1)
* to a(n+4)". Only Type and Instance fields of the offending IE that caused the
* rejection have a meaning. The length in the Octet 8-9 and spare bits in the Octet 10
* shall be set to "0". In this case, the value of "n" shall be "6".
* Otherwise, the value of "n" is equal to "2".
*/
/* Type of the offending IE */
proto_tree_add_item(tree, hf_gtpv2_cause_off_ie_t, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
proto_tree_add_item(tree, hf_gtpv2_ie_len, tvb, offset, 2, ENC_BIG_ENDIAN);
offset+=2;
/* a(n+4) Spare Instance */
proto_tree_add_bits_item(tree, hf_gtpv2_spare_half_octet, tvb, offset>>3, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_instance, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
}
/*
* 8.5 Recovery (Restart Counter)
*/
static void
dissect_gtpv2_recovery(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
guint8 recovery;
recovery = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_rec, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_item_append_text(item, "%u", recovery);
}
/*Start SRVCC Messages*/
/* 6.2 STN-SR */
static void
dissect_gtpv2_stn_sr(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
proto_item *stn_sr_item;
proto_tree *sub_tree;
tvbuff_t *new_tvb;
int offset = 0;
stn_sr_item = proto_tree_add_item(tree, hf_gtpv2_stn_sr, tvb, offset, length, ENC_BIG_ENDIAN);
new_tvb = tvb_new_subset(tvb, offset, length, length );
sub_tree = proto_item_add_subtree(stn_sr_item, ett_gtpv2_stn_sr);
/* Octet 5
* contains the Nature of Address and Numbering Plan Indicator (NANPI) of the "AddressString" ASN.1 type (see 3GPP
* TS 29.002 [11]). Octets 6 to (n+4) contain the actual STN-SR (digits of an address encoded as a TBCD-STRING as in
* the "AddressString" ASN.1 type). For an odd number of STN-SR digits, bits 8 to 5 of the last octet are encoded with the
* filler "1111".
*/
dissect_gsm_map_msisdn(new_tvb, pinfo, sub_tree);
}
/* 6.3 Source to Target Transparent Container */
static void
dissect_gtpv2_src_tgt_trans_con(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
proto_tree_add_item(tree, hf_gtpv2_len_trans_con, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/*ra_type_flag = 0;*/
/* Transparent Container
* When target network is GERAN, this container carries the Old BSS to New BSS
* Information IE defined in 3GPP TS 48.008 [8]. When target network is UTRAN, this container carries the Source RNC
* to Target RNC Transparent Container IE defined in 3GPP TS 25.413 [9]. The Transparent container field includes the
* IE value part as it is specified in the respective specification.
*/
proto_tree_add_text(tree, tvb, offset, length-1, "Transparent Container: %s", tvb_bytes_to_str(tvb, offset, length-1));
/*
* bssmap_old_bss_to_new_bss_info(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo);
* dissect_ranap_SourceRNC_ToTargetRNC_TransparentContainer_PDU
*/
}
/* 6.4 Target to Source Transparent Container */
static void
dissect_gtpv2_tgt_src_trans_con(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
proto_tree_add_item(tree, hf_gtpv2_len_trans_con, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Transparent Container */
proto_tree_add_text(tree, tvb, offset, length-1, "Transparent Container: %s", tvb_bytes_to_str(tvb, offset, length-1));
}
/* 6.5 MM Context for E-UTRAN SRVCC */
static void
dissect_gtpv2_mm_con_eutran_srvcc(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
guint8 elm_len;
proto_tree *ms_tree, *fi;
proto_tree_add_item(tree, hf_gtpv2_eksi, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_text(tree, tvb, offset , 16,"CKsrvcc: %s ",tvb_bytes_to_str(tvb, offset, 16));
offset = offset+16;
proto_tree_add_text(tree, tvb, offset, 16, "IKsrvcc: %s ", tvb_bytes_to_str(tvb, offset, 16));
offset = offset+16;
/* Length of Mobile Station Classmark2 */
elm_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_len_ms_classmark2, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
fi = proto_tree_add_text(tree, tvb, offset, elm_len, "Mobile Station Classmark2 %s", tvb_bytes_to_str(tvb, offset, elm_len));
ms_tree = proto_item_add_subtree(fi, ett_gtpv2_ms_mark);
de_ms_cm_2(tvb, ms_tree, pinfo, offset, elm_len, NULL, 0);
offset = offset+elm_len;
/* Length of Mobile Station Classmark3 */
elm_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_len_ms_classmark3, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
fi = proto_tree_add_text(tree, tvb, offset, elm_len, "Mobile Station Classmark3 %s", tvb_bytes_to_str(tvb, offset, elm_len));
ms_tree = proto_item_add_subtree(fi, ett_gtpv2_ms_mark);
de_ms_cm_3(tvb, ms_tree, pinfo, offset, elm_len, NULL, 0);
offset = offset+elm_len;
/*Length of Supported Codec List */
elm_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_len_supp_codec_list, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
fi = proto_tree_add_text(tree, tvb, offset, elm_len, "Supported Codec List %s", tvb_bytes_to_str(tvb, offset, elm_len));
ms_tree = proto_item_add_subtree(fi, ett_gtpv2_supp_codec_list);
de_sup_codec_list(tvb, ms_tree, pinfo, offset, elm_len, NULL, 0);
offset = offset+elm_len;
}
/* 6.6 MM Context for UTRAN SRVCC */
static void
dissect_gtpv2_mm_con_utran_srvcc(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
guint8 elm_len;
proto_tree *ms_tree, *fi;
proto_tree_add_item(tree, hf_gtpv2_ksi, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_text(tree, tvb, offset , 16,"CK'cs: %s",tvb_bytes_to_str(tvb, offset, 16));
offset = offset+16;
proto_tree_add_text(tree, tvb, offset, 16, "IK'cs: %s",tvb_bytes_to_str(tvb, offset, 16));
offset = offset+16;
proto_tree_add_text(tree, tvb, offset, 8, "Kc': %s",tvb_bytes_to_str(tvb, offset, 8));
offset = offset+8;
proto_tree_add_item(tree, hf_gtpv2_cksn, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/*Length of Mobile Station Classmark2 */
elm_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_len_ms_classmark2, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
fi = proto_tree_add_text(tree, tvb, offset, elm_len, "Mobile Station Classmark2 %s", tvb_bytes_to_str(tvb, offset, elm_len));
ms_tree = proto_item_add_subtree(fi, ett_gtpv2_ms_mark);
de_ms_cm_2(tvb, ms_tree, pinfo, offset, elm_len, NULL, 0);
offset = offset+elm_len;
/*Length of Mobile Station Classmark3 */
elm_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_len_ms_classmark3, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
fi = proto_tree_add_text(tree, tvb, offset, elm_len, "Mobile Station Classmark3 %s", tvb_bytes_to_str(tvb, offset, elm_len));
ms_tree = proto_item_add_subtree(fi, ett_gtpv2_ms_mark);
de_ms_cm_3(tvb, ms_tree, pinfo, offset, elm_len, NULL, 0);
offset = offset+elm_len;
/*Length of Supported Codec List */
elm_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_len_supp_codec_list, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
fi = proto_tree_add_text(tree, tvb, offset, elm_len, "Supported Codec List %s", tvb_bytes_to_str(tvb, offset, elm_len));
ms_tree = proto_item_add_subtree(fi, ett_gtpv2_supp_codec_list);
de_sup_codec_list(tvb, ms_tree, pinfo, offset, elm_len, NULL, 0);
offset = offset+elm_len;
}
/* 6.7 SRVCC Cause */
static const value_string gtpv2_srvcc_cause_vals[] = {
{0, "Reserved"},
{1, "Unspecified"},
{2, "Handover/Relocation cancelled by source system "},
{3, "Handover /Relocation Failure with Target system"},
{4, "Handover/Relocation Target not allowed"},
{5, "Unknown Target ID"},
{6, "Target Cell not available"},
{7, "No Radio Resources Available in Target Cell"},
{8, "Failure in Radio Interface Procedure"},
{0, NULL}
};
static value_string_ext gtpv2_srvcc_cause_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_srvcc_cause_vals);
static void
dissect_gtpv2_srvcc_cause(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
guint8 srvcc_cause;
srvcc_cause = tvb_get_guint8(tvb, 0);
proto_tree_add_item(tree, hf_gtpv2_srvcc_cause, tvb, 0, 1, ENC_BIG_ENDIAN);
proto_item_append_text(item, "%s (%u)", val_to_str_ext_const(srvcc_cause, &gtpv2_srvcc_cause_vals_ext, "Unknown"),srvcc_cause);
offset++;
}
/* 6.8 Target RNC ID */
static void
dissect_gtpv2_tgt_rnc_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
guint8 rnc_id;
proto_tree *subtree;
proto_item *rai_item;
guint32 mcc;
guint32 mnc;
guint32 lac;
guint32 curr_offset;
/*ra_type_flag = 1;*/ /*Flag to be set to differentiate GERAN and UTRAN*/
curr_offset = offset;
mcc = (tvb_get_guint8(tvb, curr_offset) & 0x0f) <<8;
mcc |= (tvb_get_guint8(tvb, curr_offset) & 0xf0);
mcc |= (tvb_get_guint8(tvb, curr_offset+1) & 0x0f);
mnc = (tvb_get_guint8(tvb, curr_offset+2) & 0x0f) <<8;
mnc |= (tvb_get_guint8(tvb, curr_offset+2) & 0xf0);
mnc |= (tvb_get_guint8(tvb, curr_offset+1) & 0xf0) >>4;
if ((mnc&0x000f) == 0x000f)
mnc = mnc>>4;
lac = tvb_get_ntohs(tvb, curr_offset+3);
rnc_id = tvb_get_guint8(tvb, curr_offset+5);
rai_item = proto_tree_add_text(tree,
tvb, curr_offset, 6,
"Routing area identification: %x-%x-%u-%u",
mcc,mnc,lac,rnc_id);
subtree = proto_item_add_subtree(rai_item, ett_gtpv2_rai);
dissect_e212_mcc_mnc(tvb, pinfo, subtree, offset, TRUE);
proto_tree_add_item(subtree, hf_gtpv2_lac, tvb, curr_offset+3, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(subtree, hf_gtpv2_rnc_id, tvb, curr_offset+5, 1, ENC_BIG_ENDIAN);
curr_offset+=6;
/* no length check possible */
}
/* 6.9 Target Global Cell ID */
static void
dissect_gtpv2_tgt_global_cell_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
guint8 tgt_cell_id;
proto_tree *subtree;
proto_item *rai_item;
guint32 mcc;
guint32 mnc;
guint32 lac;
guint32 curr_offset;
curr_offset = offset;
mcc = (tvb_get_guint8(tvb, curr_offset) & 0x0f) <<8;
mcc |= (tvb_get_guint8(tvb, curr_offset) & 0xf0);
mcc |= (tvb_get_guint8(tvb, curr_offset+1) & 0x0f);
mnc = (tvb_get_guint8(tvb, curr_offset+2) & 0x0f) <<8;
mnc |= (tvb_get_guint8(tvb, curr_offset+2) & 0xf0);
mnc |= (tvb_get_guint8(tvb, curr_offset+1) & 0xf0) >>4;
if ((mnc&0x000f) == 0x000f)
mnc = mnc>>4;
lac = tvb_get_ntohs(tvb, curr_offset+3);
tgt_cell_id = tvb_get_guint8(tvb, curr_offset+5);
rai_item = proto_tree_add_text(tree,
tvb, curr_offset, 6,
"Routing area identification: %x-%x-%u-%u",
mcc,mnc,lac,tgt_cell_id);
subtree = proto_item_add_subtree(rai_item, ett_gtpv2_rai);
dissect_e212_mcc_mnc(tvb, pinfo, subtree, offset, TRUE);
proto_tree_add_item(subtree, hf_gtpv2_lac, tvb, curr_offset+3, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(subtree, hf_gtpv2_tgt_g_cell_id, tvb, curr_offset+5, 1, ENC_BIG_ENDIAN);
curr_offset+=6;
/* no length check possible */
}
/* 6.10 Tunnel Endpoint Identifier for Control Plane (TEID-C) */
static void
dissect_gtpv2_teid_c(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
proto_tree_add_item(tree, hf_gtpv2_teid_c, tvb, offset, 4, ENC_BIG_ENDIAN);
offset= offset+4;
if(length>4)
proto_tree_add_text(tree, tvb, offset, length-4, "Spare: %s",tvb_bytes_to_str(tvb, offset, length-4));
}
/* 6.11 Sv Flags */
static void
dissect_gtpv2_sv_flags(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
proto_tree_add_item(tree, hf_gtpv2_sv_sti, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_sv_ics, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_sv_emind, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
if(length>1)
proto_tree_add_text(tree, tvb, offset, length-1, "Spare: %s",tvb_bytes_to_str(tvb, offset, length-1));
}
/* 6.12 Service Area Identifier */
static void
dissect_gtpv2_sai(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
/* 5 MCC digit 2 MCC digit 1
* 6 MNC digit 3 MCC digit 3
* 7 MNC digit 2 MNC digit 1
*/
dissect_e212_mcc_mnc(tvb, pinfo, tree, offset, TRUE);
offset+=3;
/* The Location Area Code (LAC) consists of 2 octets. Bit 8 of Octet 8 is the most significant bit and bit 1 of Octet 9 the
* least significant bit. The coding of the location area code is the responsibility of each administration. Coding using full
* hexadecimal representation shall be used.
*/
proto_tree_add_item(tree, hf_gtpv2_lac, tvb, offset, 2, ENC_BIG_ENDIAN);
offset+=2;
/* The Service Area Code (SAC) consists of 2 octets. Bit 8 of Octet 10 is the most significant bit and bit 1 of Octet 11 the
* least significant bit. The SAC is defined by the operator. See 3GPP TS 23.003 [4] subclause 12.5 for more information
*/
proto_tree_add_item(tree, hf_gtpv2_sac, tvb, offset, 2, ENC_BIG_ENDIAN);
offset+=2;
}
/*End SRVCC Messages*/
/*
* 8.6 Access Point Name (APN)
* The encoding the APN field follows 3GPP TS 23.003 [2] subclause 9.1.
* The content of the APN field shall be the full APN with both the APN Network Identifier
* and APN Operator Identifier being present as specified in 3GPP TS 23.003 [2]
* subclauses 9.1.1 and 9.1.2, 3GPP TS 23.060 [35] Annex A and 3GPP TS 23.401 [3] subclauses 4.3.8.1.
*/
static void
dissect_gtpv2_apn(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
guint8 *apn = NULL;
int name_len, tmp;
if (length > 0) {
name_len = tvb_get_guint8(tvb, offset);
if (name_len < 0x20) {
apn = tvb_get_ephemeral_string(tvb, offset + 1, length - 1);
for (;;) {
if (name_len >= length - 1)
break;
tmp = name_len;
name_len = name_len + apn[tmp] + 1;
apn[tmp] = '.';
}
} else{
apn = tvb_get_ephemeral_string(tvb, offset, length);
}
proto_tree_add_string(tree, hf_gtpv2_apn, tvb, offset, length, apn);
}
if (apn)
proto_item_append_text(item, "%s", apn);
}
/*
* 8.7 Aggregate Maximum Bit Rate (AMBR)
*/
static void
dissect_gtpv2_ambr(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
proto_tree_add_item(tree, hf_gtpv2_ambr_up, tvb, offset, 4, ENC_BIG_ENDIAN);
offset= offset + 4;
proto_tree_add_item(tree, hf_gtpv2_ambr_down, tvb, offset, 4, ENC_BIG_ENDIAN);
}
/*
* 8.8 EPS Bearer ID (EBI)
*/
static void
dissect_gtpv2_ebi(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
guint8 ebi;
/* Spare (all bits set to 0) B8 - B5*/
proto_tree_add_bits_item(tree, hf_gtpv2_spare_bits, tvb, offset, 4, ENC_BIG_ENDIAN);
/* EPS Bearer ID (EBI) B4 - B1 */
ebi = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_ebi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_item_append_text(item, "%u", ebi);
}
/*
* 8.9 IP Address
*/
static void
dissect_gtpv2_ip_address(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
struct e_in6_addr ipv6_addr;
if (length==4)
{
proto_tree_add_item(tree, hf_gtpv2_ip_address_ipv4, tvb, offset, length, ENC_BIG_ENDIAN);
proto_item_append_text(item, "IPv4 %s", tvb_ip_to_str(tvb, offset));
}
else if (length==16)
{
proto_tree_add_item(tree, hf_gtpv2_ip_address_ipv6, tvb, offset, length, ENC_BIG_ENDIAN);
tvb_get_ipv6(tvb, offset, &ipv6_addr);
proto_item_append_text(item, "IPv6 %s", ip6_to_str(&ipv6_addr));
}
}
/*
* 8.10 Mobile Equipment Identity (MEI)
* The ME Identity field contains either the IMEI or the IMEISV
* as defined in clause 6.2 of 3GPP TS 23.003 [2]. It is encoded
* as specified in clause 7.7.53 of 3GPP TS 29.060 [4], beginning
* with octet 4 of Figure 7.7.53.1. The IMEI(SV) digits are encoded
* using BCD coding where IMEI is 15 BCD digits and IMEISV is 16 BCD
* digits. For IMEI, bits 5 to 8 of the last octet shall be filled
* with an end mark coded as '1111'.
*/
static void
dissect_gtpv2_mei(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
int offset= 0;
const gchar *mei_str;
/* Fetch the BCD encoded digits from tvb low half byte, formating the digits according to
* a default digit set of 0-9 returning "?" for overdecadic digits a pointer to the EP
* allocated string will be returned.
*/
mei_str = tvb_bcd_dig_to_ep_str( tvb, 0, length, NULL, ENC_BIG_ENDIAN);
proto_tree_add_string(tree, hf_gtpv2_mei, tvb, offset, length, mei_str);
proto_item_append_text(item, "%s", mei_str);
}
/*
* 8.11 MSISDN
*
* MSISDN is defined in 3GPP TS 23.003
* Editor's note: MSISDN coding will be defined in TS 24.301.
*/
static void
dissect_gtpv2_msisdn(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
const char *digit_str;
/* Octets 5 to (n+4) represent the MSISDN value is in international number format
* as described in ITU-T Rec E.164 [25] and 3GPP TS 29.002 [41].
* MSISDN value contains only the actual MSISDN number (does not contain the "nature of
* address indicator" octet, which indicates "international number"
* as in 3GPP TS 29.002 [41]) and is encoded as TBCD digits, i.e.
* digits from 0 through 9 are encoded "0000" to "1001".
* When there is an odd number of digits, bits 8 to 5 of the last octet are encoded with
* the filler "1111".
*/
dissect_e164_cc(tvb, tree, 0, TRUE);
/* Fetch the BCD encoded digits from tvb low half byte, formating the digits according to
* a default digit set of 0-9 returning "?" for overdecadic digits a pointer to the EP
* allocated string will be returned.
*/
digit_str = tvb_bcd_dig_to_ep_str( tvb, 0, length, NULL, ENC_BIG_ENDIAN);
proto_tree_add_string(tree, hf_gtpv2_address_digits, tvb, 0, length, digit_str);
proto_item_append_text(item, "%s", digit_str);
}
/*
* 8.12 Indication
*/
static void
dissect_gtpv2_ind(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
/* Octet 5 DAF DTF HI DFI OI ISRSI ISRAI SGWCI */
proto_tree_add_item(tree, hf_gtpv2_daf, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_dtf, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_hi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_dfi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_oi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_isrsi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_israi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_sgwci, tvb, offset, 1, ENC_BIG_ENDIAN);
if(length==1) {
proto_tree_add_text(tree, tvb, 0, length, "Older version?, should be 2 octets in 8.0.0");
return;
}
offset++;
/* Octet 6 SQCI UIMSI CFSI CRSI P PT SI MSV
* 3GPP TS 29.274 version 9.4.0 Release 9
*/
proto_tree_add_item(tree, hf_gtpv2_sqci, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_uimsi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_cfsi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_crsi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_ps, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_pt, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_si, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_msv, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
if(length==2){
return;
}
/* Only present in version 9 and higher */
/* Octet 7 Spare Spare Spare Spare Spare Spare Spare CCRSI */
proto_tree_add_item(tree, hf_gtpv2_ccrsi, tvb, offset, 1, ENC_BIG_ENDIAN);
}
/*
* 8.13 Protocol Configuration Options (PCO)
* Protocol Configuration Options (PCO) is transferred via GTP tunnels. The sending entity copies the value part of the
* PCO into the Value field of the PCO IE. The detailed coding of the PCO field from octets 5 to (n+4) shall be specified
* as per clause 10.5.6.3 of 3GPP TS 24.008 [5], starting with octet 3.
* Dissected in packet-gsm_a_gm.c
*/
static void
dissect_gtpv2_pco(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
switch(message_type){
case GTPV2_CREATE_SESSION_REQUEST:
/* PCO options as MS to network direction */
pinfo->link_dir = P2P_DIR_UL;
break;
case GTPV2_CREATE_SESSION_RESPONSE:
/* PCO options as Network to MS direction: */
pinfo->link_dir = P2P_DIR_DL;
break;
default:
break;
}
de_sm_pco(tvb, tree, pinfo, 0, length, NULL, 0);
}
/*
* 8.14 PDN Address Allocation (PAA)
*/
static const value_string gtpv2_pdn_type_vals[] = {
{1, "IPv4"},
{2, "IPv6"},
{3, "IPv4/IPv6"},
{0, NULL}
};
static void
dissect_gtpv2_paa(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
guint8 pdn_type;
pdn_type = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_pdn_type, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
switch(pdn_type)
{
case 1:
/* IPv4 */
proto_tree_add_item(tree, hf_gtpv2_pdn_ipv4, tvb, offset, 4, ENC_BIG_ENDIAN);
offset+=4;
break;
case 2:
/* IPv6*/
/* If PDN type value indicates IPv6, octet 6 contains the IPv6 Prefix Length.
* Octets 7 through 22 contain an IPv6 Prefix and Interface Identifier.
* Bit 8 of octet 7 represents the most significant bit of the IPv6 Prefix
* and Interface Identifier and bit 1 of octet 22 the least significant bit.
*/
proto_tree_add_item(tree, hf_gtpv2_pdn_ipv6_len, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_gtpv2_pdn_ipv6, tvb, offset, 16, ENC_BIG_ENDIAN);
offset+=16;
break;
case 3:
/* IPv4/IPv6 */
/* If PDN type value indicates IPv4v6, octet 6 contains the IPv6 Prefix Length.
* Octets 7 through 22 contain an IPv6 Prefix and Interface Identifier.
* Bit 8 of octet 7 represents the most significant bit of the IPv6 Prefix
* and Interface Identifier and bit 1 of octet 22 the least significant bit.
* Octets 23 through 26 contain an IPv4 address. Bit 8 of octet 23 represents
* the most significant bit of the IPv4 address and bit 1 of octet 26 the least
* significant bit.
*/
proto_tree_add_item(tree, hf_gtpv2_pdn_ipv6_len, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_gtpv2_pdn_ipv6, tvb, offset, 16, ENC_BIG_ENDIAN);
offset+=16;
proto_tree_add_item(tree, hf_gtpv2_pdn_ipv4, tvb, offset, 4, ENC_BIG_ENDIAN);
offset+=4;
break;
default:
break;
}
}
/*
* 8.15 Bearer Quality of Service (Bearer QoS)
*/
static void
dissect_gtpv2_bearer_qos(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
proto_tree_add_item(tree, hf_gtpv2_bearer_qos_pvi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_bearer_qos_pl, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_bearer_qos_pci, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_gtpv2_bearer_qos_label_qci, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_gtpv2_bearer_qos_mbr_up, tvb, offset, 5, ENC_BIG_ENDIAN);
offset= offset+5;
proto_tree_add_item(tree, hf_gtpv2_bearer_qos_mbr_down, tvb, offset, 5, ENC_BIG_ENDIAN);
offset= offset+5;
proto_tree_add_item(tree, hf_gtpv2_bearer_qos_gbr_up, tvb, offset, 5, ENC_BIG_ENDIAN);
offset= offset+5;
proto_tree_add_item(tree, hf_gtpv2_bearer_qos_gbr_down, tvb, offset, 5, ENC_BIG_ENDIAN);
offset= offset+5;
}
/*
* 8.16 Flow Quality of Service (Flow QoS)
*/
static void
dissect_gtpv2_flow_qos(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
proto_tree_add_item(tree, hf_gtpv2_flow_qos_label_qci, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_gtpv2_flow_qos_mbr_up, tvb, offset, 5, ENC_BIG_ENDIAN);
offset= offset+5;
proto_tree_add_item(tree, hf_gtpv2_flow_qos_mbr_down, tvb, offset, 5, ENC_BIG_ENDIAN);
offset= offset+5;
proto_tree_add_item(tree, hf_gtpv2_flow_qos_gbr_up, tvb, offset, 5, ENC_BIG_ENDIAN);
offset= offset+5;
proto_tree_add_item(tree, hf_gtpv2_flow_qos_gbr_down, tvb, offset, 5, ENC_BIG_ENDIAN);
offset= offset+5;
}
/*
* 8.17 RAT Type
*/
static const value_string gtpv2_rat_type_vals[] = {
{0, "Reserved"},
{1, "UTRAN"},
{2, "GERAN"},
{3, "WLAN"},
{4, "GAN"},
{5, "HSPA Evolution"},
{6, "EUTRAN"},
{7, "Virtual"},
{0, NULL}
};
static value_string_ext gtpv2_rat_type_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_rat_type_vals);
static void
dissect_gtpv2_rat_type(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
guint8 rat_type;
rat_type = tvb_get_guint8(tvb, 0);
proto_tree_add_item(tree, hf_gtpv2_rat_type, tvb, 0, 1, ENC_BIG_ENDIAN);
proto_item_append_text(item, "%s (%u)", val_to_str_ext_const(rat_type, &gtpv2_rat_type_vals_ext, "Unknown"),rat_type);
}
/*
* 8.18 Serving Network
*/
static void
dissect_gtpv2_serv_net(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
gchar *mcc_mnc_str;
mcc_mnc_str = dissect_e212_mcc_mnc_ep_str(tvb, pinfo, tree, 0, TRUE);
proto_item_append_text(item,"%s", mcc_mnc_str);
}
/*
* 8.19 EPS Bearer Level Traffic Flow Template (Bearer TFT)
*/
static void
dissect_gtpv2_bearer_tft(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
/* The detailed coding of Traffic Aggregate
* Description is specified in 3GPP TS 24.008 [5] ,
* clause 10.5.6.12, beginning with octet 3..
* Use the decoding in packet-gsm_a_gm.c
*/
de_sm_tflow_temp(tvb, tree, pinfo, 0, length, NULL, 0);
}
/* 8.20 Traffic Aggregate Description (TAD)
*/
static void
dissect_gtpv2_tad(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
/* The detailed coding of Traffic Aggregate
* Description is specified in 3GPP TS 24.008 [5] ,
* clause 10.5.6.12, beginning with octet 3..
* Use the decoding in packet-gsm_a_gm.c
*/
de_sm_tflow_temp(tvb, tree, pinfo, 0, length, NULL, 0);
}
/*
* 8.21 User Location Info (ULI)
*
* The flags ECGI, TAI, RAI, SAI and CGI in octed 5 indicate if the corresponding
* fields are present in the IE or not. If one of these flags is set to "0",
* the corresponding field is not present at all. The respective identities are defined in 3GPP
* TS 23.003 [2].
* Editor's Note: The definition of ECGI is missing in 3GPP TS 23.003 v8.1.0.
* It can be found in 3GPP TS 36.413 v8.3.0, but it is expected that it will be moved
* to 23.003 in a future version.
*/
static void
decode_gtpv2_uli(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, guint16 length, guint8 instance _U_, guint flags)
{
int offset = 1; /* flags are already dissected */
proto_item *fi;
proto_tree *part_tree;
/* 8.21.1 CGI field */
if (flags & GTPv2_ULI_CGI_MASK)
{
proto_item_append_text(item, "CGI ");
fi = proto_tree_add_text(tree, tvb, offset + 1, 7, "Cell Global Identity (CGI)");
part_tree = proto_item_add_subtree(fi, ett_gtpv2_uli_field);
dissect_e212_mcc_mnc(tvb, pinfo, part_tree, offset, TRUE);
offset+=3;
proto_tree_add_item(part_tree, hf_gtpv2_uli_cgi_lac, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(part_tree, hf_gtpv2_uli_cgi_ci, tvb, offset, 2, ENC_BIG_ENDIAN);
offset+=4;
if(offset==length)
return;
}
/* 8.21.2 SAI field */
if (flags & GTPv2_ULI_SAI_MASK)
{
proto_item_append_text(item, "SAI ");
fi = proto_tree_add_text(tree, tvb, offset + 1, 7, "Service Area Identity (SAI)");
part_tree = proto_item_add_subtree(fi, ett_gtpv2_uli_field);
dissect_e212_mcc_mnc(tvb, pinfo, part_tree, offset, TRUE);
offset+=3;
proto_tree_add_item(part_tree, hf_gtpv2_uli_sai_lac, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(part_tree, hf_gtpv2_uli_sai_sac, tvb, offset, 2, ENC_BIG_ENDIAN);
offset+=4;
if(offset==length)
return;
}
/* 8.21.3 RAI field */
if (flags & GTPv2_ULI_RAI_MASK)
{
proto_item_append_text(item, "RAI ");
fi = proto_tree_add_text(tree, tvb, offset + 1, 7, "Routeing Area Identity (RAI)");
part_tree = proto_item_add_subtree(fi, ett_gtpv2_uli_field);
dissect_e212_mcc_mnc(tvb, pinfo, part_tree, offset, TRUE);
offset+=3;
proto_tree_add_item(part_tree, hf_gtpv2_uli_rai_lac, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(part_tree, hf_gtpv2_uli_rai_rac, tvb, offset, 2, ENC_BIG_ENDIAN);
offset+=4;
if(offset==length)
return;
}
/* 8.21.4 TAI field */
if (flags & GTPv2_ULI_TAI_MASK)
{
proto_item_append_text(item, "TAI ");
fi = proto_tree_add_text(tree, tvb, offset + 1, 7, "Tracking Area Identity (TAI)");
part_tree = proto_item_add_subtree(fi, ett_gtpv2_uli_field);
dissect_e212_mcc_mnc(tvb, pinfo, part_tree, offset, TRUE);
offset+=3;
proto_tree_add_item(part_tree, hf_gtpv2_uli_tai_tac, tvb, offset, 2, ENC_BIG_ENDIAN);
offset+=2;
if(offset==length)
return;
}
/* 8.21.5 ECGI field */
if (flags & GTPv2_ULI_ECGI_MASK)
{
guint8 octet;
guint32 octet4;
guint8 spare;
guint32 ECGI;
proto_item_append_text(item, "ECGI ");
fi = proto_tree_add_text(tree, tvb, offset + 1, 7, "E-UTRAN Cell Global Identifier (ECGI)");
part_tree = proto_item_add_subtree(fi, ett_gtpv2_uli_field);
dissect_e212_mcc_mnc(tvb, pinfo, part_tree, offset, TRUE);
offset+=3;
/* The bits 8 through 5, of octet e+3 (Fig 8.21.5-1 in TS 29.274 V8.2.0) are spare
* and hence they would not make any difference to the hex string following it,
* thus we directly read 4 bytes from the tvb
*/
octet = tvb_get_guint8(tvb,offset);
spare = octet & 0xF0;
octet4 = tvb_get_ntohl(tvb,offset);
ECGI = octet4 & 0x0FFFFFFF;
proto_tree_add_uint(part_tree, hf_gtpv2_uli_ecgi_eci_spare, tvb, offset, 1, spare);
/* The coding of the E-UTRAN cell identifier is the responsibility of each administration.
* Coding using full hexadecimal representation shall be used.
*/
proto_tree_add_uint(part_tree, hf_gtpv2_uli_ecgi_eci, tvb, offset, 4, ECGI);
/*proto_tree_add_item(tree, hf_gtpv2_uli_ecgi_eci, tvb, offset, 4, ENC_BIG_ENDIAN);*/
offset+=4;
if(offset==length)
return;
}
/* 8.21.6 LAI field */
if (flags & GTPv2_ULI_LAI_MASK)
{
proto_item_append_text(item, "LAI ");
fi = proto_tree_add_text(tree, tvb, offset + 1, 5, "LAI (Location Area Identifier)");
part_tree = proto_item_add_subtree(fi, ett_gtpv2_uli_field);
dissect_e212_mcc_mnc(tvb, pinfo, part_tree, offset, TRUE);
offset+=3;
/* The Location Area Code (LAC) consists of 2 octets. Bit 8 of Octet f+3 is the most significant bit
* and bit 1 of Octet f+4 the least significant bit. The coding of the location area code is the
* responsibility of each administration. Coding using full hexadecimal representation shall be used.
*/
proto_tree_add_item(part_tree, hf_gtpv2_uli_lai_lac, tvb, offset, 2, ENC_BIG_ENDIAN);
offset+=2;
}
}
static void
dissect_gtpv2_uli(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
proto_item *flags_item;
proto_tree *flag_tree;
int offset = 0;
guint flags;
flags_item = proto_tree_add_text(tree, tvb, offset, 1, "Flags");
flag_tree = proto_item_add_subtree(flags_item, ett_gtpv2_uli_flags);
flags = tvb_get_guint8(tvb,offset)&0x3f;
proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, offset>>3, 2, ENC_BIG_ENDIAN);
/* LAI B6 */
proto_tree_add_item(flag_tree, hf_gtpv2_uli_lai_flg, tvb, offset, 1, ENC_BIG_ENDIAN);
/* ECGI B5 */
proto_tree_add_item(flag_tree, hf_gtpv2_uli_ecgi_flg, tvb, offset, 1, ENC_BIG_ENDIAN);
/* TAI B4 */
proto_tree_add_item(flag_tree, hf_gtpv2_uli_tai_flg, tvb, offset, 1, ENC_BIG_ENDIAN);
/* RAI B3 */
proto_tree_add_item(flag_tree, hf_gtpv2_uli_rai_flg, tvb, offset, 1, ENC_BIG_ENDIAN);
/* SAI B2 */
proto_tree_add_item(flag_tree, hf_gtpv2_uli_sai_flg, tvb, offset, 1, ENC_BIG_ENDIAN);
/* CGI B1 */
proto_tree_add_item(flag_tree, hf_gtpv2_uli_cgi_flg, tvb, offset, 1, ENC_BIG_ENDIAN);
decode_gtpv2_uli(tvb, pinfo, tree, item, length, instance, flags);
return;
}
/* Diameter 3GPP AVP Code: 22 3GPP-User-Location-Info */
/*
* TS 29.061 v9.2.0
* 16.4.7.2 Coding 3GPP Vendor-Specific RADIUS attributes
*
* For P-GW, the Geographic Location Type values and coding are defined as follows:
*
* 0 CGI
* 1 SAI
* 2 RAI
* 3-127 Spare for future use
* 128 TAI
* 129 ECGI
* 130 TAI and ECGI
* 131-255 Spare for future use
*/
static const value_string geographic_location_type_vals[] = {
{0, "CGI"},
{1, "SAI"},
{2, "RAI"},
{128, "TAI"},
{129, "ECGI"},
{130, "TAI and ECGI"},
{0, NULL}
};
static int
dissect_diameter_3gpp_uli(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
int offset = 0;
guint length;
guint flags;
guint flags_3gpp;
length = tvb_length(tvb);
flags_3gpp = tvb_get_guint8(tvb,offset);
proto_tree_add_item(tree, hf_gtpv2_glt, tvb, offset, 1, ENC_BIG_ENDIAN);
switch(flags_3gpp)
{
case 0:
/* CGI */
flags = GTPv2_ULI_CGI_MASK;
break;
case 1:
/* SAI */
flags = GTPv2_ULI_SAI_MASK;
break;
case 2:
/* RAI */
flags = GTPv2_ULI_RAI_MASK;
break;
case 128:
/* TAI */
flags = GTPv2_ULI_TAI_MASK;
break;
case 129:
/* ECGI */
flags = GTPv2_ULI_ECGI_MASK;
break;
case 130:
/* TAI and ECGI */
flags = GTPv2_ULI_TAI_MASK + GTPv2_ULI_ECGI_MASK;
break;
default:
proto_tree_add_text(tree, tvb, 1, -1, "Geographic Location");
return length;
}
decode_gtpv2_uli(tvb, pinfo, tree, NULL, length, 0, flags);
return length;
}
/*
* 8.22 Fully Qualified TEID (F-TEID)
*/
static const value_string gtpv2_f_teid_interface_type_vals[] = {
{0, "S1-U eNodeB GTP-U interface"},
{1, "S1-U SGW GTP-U interface"},
{2, "S12 RNC GTP-U interface"},
{3, "S12 SGW GTP-U interface"},
{4, "S5/S8 SGW GTP-U interface"},
{5, "S5/S8 PGW GTP-U interface"},
{6, "S5/S8 SGW GTP-C interface"},
{7, "S5/S8 PGW GTP-C interface"},
{8, "S5/S8 SGW PMIPv6 interface"},/* (the 32 bit GRE key is encoded in 32 bit TEID field "
"and since alternate CoA is not used the control plane and user plane addresses are the same for PMIPv6)"}, */
{9, "S5/S8 PGW PMIPv6 interface"},/* (the 32 bit GRE key is encoded in 32 bit TEID field "
"and the control plane and user plane addresses are the same for PMIPv6)"}, */
{10, "S11 MME GTP-C interface"},
{11, "S11/S4 SGW GTP-C interface"},
{12, "S10 MME GTP-C interface"},
{13, "S3 MME GTP-C interface"},
{14, "S3 SGSN GTP-C interface"},
{15, "S4 SGSN GTP-U interface"},
{16, "S4 SGW GTP-U interface"},
{17, "S4 SGSN GTP-C interface"},
{18, "S16 SGSN GTP-C interface"},
{19, "eNodeB GTP-U interface for DL data forwarding"},
{20, "eNodeB GTP-U interface for UL data forwarding"},
{21, "RNC GTP-U interface for data forwarding"},
{22, "SGSN GTP-U interface for data forwarding"},
{23, "SGW GTP-U interface for data forwarding"},
{24, "Sm MBMS GW GTP-C interface"},
{25, "Sn MBMS GW GTP-C interface"},
{26, "Sm MME GTP-C interface"},
{27, "Sn SGSN GTP-C interface"},
{28, "SGW GTP-U interface for UL data forwarding"},
{29, "Sn SGSN GTP-U interface"},
{30, "S2b ePDG GTP-C interface"},
{31, "S2b-U ePDG GTP-U interface"},
{32, "S2b PGW GTP-C interface"},
{33, "S2b-U PGW GTP-U interface"},
{0, NULL}
};
static value_string_ext gtpv2_f_teid_interface_type_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_f_teid_interface_type_vals);
static const true_false_string gtpv2_f_teid_v4_vals = {
"IPv4 address present",
"IPv4 address not present",
};
static const true_false_string gtpv2_f_teid_v6_vals = {
"IPv6 address present",
"IPv6 address not present",
};
static void
dissect_gtpv2_f_teid(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
guint8 flags;
flags = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_f_teid_v4, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_f_teid_v6, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_f_teid_interface_type, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_gtpv2_f_teid_gre_key, tvb, offset, 4, ENC_BIG_ENDIAN);
proto_item_append_text(item, "%s, TEID/GRE Key: 0x%s", val_to_str_ext_const((flags & 0x1f), &gtpv2_f_teid_interface_type_vals_ext, "Unknown"),
tvb_bytes_to_str(tvb, offset, 4));
offset= offset+4;
if (flags&0x80)
{
proto_tree_add_item(tree, hf_gtpv2_f_teid_ipv4, tvb, offset, 4, ENC_BIG_ENDIAN);
proto_item_append_text(item, ", IPv4 %s", tvb_ip_to_str(tvb, offset));
offset= offset+4;
}
if (flags&0x40)
{
proto_tree_add_item(tree, hf_gtpv2_f_teid_ipv6, tvb, offset, 16, ENC_BIG_ENDIAN);
proto_item_append_text(item, ", IPv6 %s", tvb_ip6_to_str(tvb, offset));
offset= offset+16;
}
}
/*
* 8.23 TMSI
*/
static void
dissect_gtpv2_tmsi(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
proto_tree_add_item(tree, hf_gtpv2_tmsi, tvb, 0, 4, ENC_BIG_ENDIAN);
proto_tree_add_text(item, tvb, 0, length, "TMSI: %s", tvb_bytes_to_str(tvb, 0, 4));
}
/*
* 8.24 Global CN-Id
* (TS 23.003)
* 12.3 CN Identifier
*
* A CN node is uniquely identified within a PLMN by its CN Identifier (CN-Id). The CN-Id together with the PLMN
* identifier globally identifies the CN node. The CN-Id together with the PLMN-Id is used as the CN node identifier in
* RANAP signalling over the Iu interface.
* Global CN-Id = PLMN-Id || CN-Id
* The CN-Id is defined by the operator, and set in the nodes via O&M.
* For the syntax description and the use of this identifier in RANAP signalling, see 3GPP TS 25.413 [17].
*/
static void
dissect_gtpv2_g_cn_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
dissect_e212_mcc_mnc(tvb, pinfo, tree, 0, TRUE);
offset +=3;
/* >CN-ID M INTEGER (0..4095) */
proto_tree_add_text(tree, tvb, offset, 2, "CN-Id: %s",
tvb_bytes_to_str(tvb, offset, 2));
}
/*
* 8.25 S103 PDN Data Forwarding Info (S103PDF)
*/
static void
dissect_gtpv2_s103pdf(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
proto_item *expert_item;
int offset = 0;
guint8 m,k,i;
/* The HSGW Address and GRE Key identify a GRE Tunnel towards a HSGW over S103 interface for a specific PDN
* connection of the UE. The EPS Bearer IDs specify the EPS Bearers which require data forwarding that belonging to this
* PDN connection. The number of EPS bearer Ids included is specified by the value of EPS Bearer ID Number.
*/
/* Octet 5 HSGW Address for forwarding Length = m */
m = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_hsgw_addr_f_len, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* 6 to (m+5) HSGW Address for forwarding [4..16] */
switch(m) {
case 4:
/* IPv4 */
proto_tree_add_item(tree, hf_gtpv2_hsgw_addr_ipv4, tvb, offset, 1, ENC_BIG_ENDIAN);
offset+=4;
break;
case 16:
/* IPv6 */
proto_tree_add_item(tree, hf_gtpv2_hsgw_addr_ipv6, tvb, offset, 1, ENC_BIG_ENDIAN);
offset+=16;
break;
default:
/* Error */
expert_item = proto_tree_add_text(tree, tvb, 0, length, "Wrong length %u, should be 4 or 16",m);
expert_add_info_format(pinfo, expert_item, PI_PROTOCOL, PI_ERROR, "Wrong length %u, should be 4 or 16",m);
PROTO_ITEM_SET_GENERATED(expert_item);
return;
}
/* (m+6)- to (m+9) GRE Key */
proto_tree_add_item(tree, hf_gtpv2_gre_key, tvb, offset, 4, ENC_BIG_ENDIAN);
offset+=4;
/* (m+10) EPS Bearer ID Number = k */
k = tvb_get_guint8(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 1, "EPS Bearer ID Number = %d", k);
offset += 1;
/* (m+11) to (m+10+k)
* Spare EPS Bearer ID
*/
for ( i = 0; i < k; i++ ){
proto_tree_add_bits_item(tree, hf_gtpv2_spare_bits, tvb, offset<<3, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_ebi, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
}
}
/*
* 8.26 S1-U Data Forwarding (S1UDF)
*/
static void
dissect_gtpv2_s1udf(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
proto_item *expert_item;
int offset = 0;
guint8 m;
/* 5 Spare EPS Bearer ID */
proto_tree_add_bits_item(tree, hf_gtpv2_spare_bits, tvb, offset<<3, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_ebi, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* 6 Serving GW Address Length = m */
m = tvb_get_guint8(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 1, "Serving GW Address Length = %u", m);
offset++;
/* 7 to (m+6) Serving GW Address [4..16] */
switch(m) {
case 4:
/* IPv4 */
proto_tree_add_item(tree, hf_gtpv2_sgw_addr_ipv4, tvb, offset, 1, ENC_BIG_ENDIAN);
offset+=4;
break;
case 16:
/* IPv6 */
proto_tree_add_item(tree, hf_gtpv2_sgw_addr_ipv6, tvb, offset, 1, ENC_BIG_ENDIAN);
offset+=16;
break;
default:
/* Error */
expert_item = proto_tree_add_text(tree, tvb, 0, length, "Wrong length %u, should be 4 or 16",m);
expert_add_info_format(pinfo, expert_item, PI_PROTOCOL, PI_ERROR, "Wrong length %u, should be 4 or 16",m);
PROTO_ITEM_SET_GENERATED(expert_item);
return;
}
/* (m+7) to (m+10)
* Serving GW S1-U TEID
*/
proto_tree_add_item(tree, hf_gtpv2_sgw_s1u_teid, tvb, offset, 4, ENC_BIG_ENDIAN);
}
/*
* 8.27 Delay Value
*/
static void
dissect_gtpv2_delay_value(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
proto_tree_add_item(tree, hf_gtpv2_delay_value, tvb, offset, 1, ENC_BIG_ENDIAN);
}
/*
* 8.28 Bearer Context (grouped IE)
*/
static void
dissect_gtpv2_bearer_ctx(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree _U_, proto_item *item, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset= 0;
tvbuff_t *new_tvb;
proto_tree *grouped_tree;
proto_item_append_text(item, "[Grouped IE]");
grouped_tree = proto_item_add_subtree(item, ett_gtpv2_bearer_ctx);
new_tvb = tvb_new_subset(tvb, offset, length, length );
dissect_gtpv2_ie_common(new_tvb, pinfo, grouped_tree, 0, message_type);
}
/* 8.29 Charging ID */
static void
dissect_gtpv2_charging_id(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
proto_tree_add_item(tree, hf_gtpv2_charging_id, tvb, offset, length, ENC_BIG_ENDIAN);
}
/* 8.30 Charging Characteristics
* The charging characteristics information element is defined in 3GPP TS 32.251 [8]
* and is a way of informing both the SGW and PGW of the rules for producing charging
* information based on operator configured triggers. For the encoding of this
* information element see 3GPP TS 32.298 [9].
*/
static void
dissect_gtpv2_char_char(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
proto_tree_add_item(tree, hf_gtpv2_charging_characteristic, tvb, offset, 2, ENC_BIG_ENDIAN);
if(length>2){
offset+=2;
/* These octet(s) is/are present only if explicitly specified */
proto_tree_add_text(tree, tvb, offset, length-2, "Remaining octets");
}
}
/*
* 8.30 Bearer Flag
*/
static void
dissect_gtpv2_bearer_flag(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
/* Octet 5 Spare VB PPC */
proto_tree_add_item(tree, hf_gtpv2_bearer_flag_ppc, tvb, offset, length, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_bearer_flag_vb, tvb, offset, length, ENC_BIG_ENDIAN);
}
/*
* 8.34 PDN Type
*/
static void
dissect_gtpv2_pdn_type(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
guint8 pdn;
if (length != 1) {
proto_item *expert_item;
expert_item = proto_tree_add_text(tree, tvb, 0, length, "Wrong length indicated. Expected 1, got %u", length);
expert_add_info_format(pinfo, expert_item, PI_MALFORMED, PI_ERROR, "Wrong length indicated. Expected 1, got %u", length);
PROTO_ITEM_SET_GENERATED(expert_item);
return;
}
proto_tree_add_bits_item(tree, hf_gtpv2_spare_bits, tvb, offset<<3, 5, ENC_BIG_ENDIAN);
pdn = tvb_get_guint8(tvb, offset)& 0x7;
proto_tree_add_item(tree, hf_gtpv2_pdn_type, tvb, offset, length, ENC_BIG_ENDIAN);
proto_item_append_text(item, "%s", val_to_str(pdn, gtpv2_pdn_type_vals, "Unknown"));
}
/*
* 8.31 Trace Information
*/
static void
dissect_gtpv2_tra_info(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
proto_item *trigg, *msc_server, *mgw, *sgsn, *ggsn, *bm_sc, *sgw_mme, *ne_types;
proto_tree *trigg_tree, *msc_server_tree, *mgw_tree, *sgsn_tree, *ggsn_tree, *bm_sc_tree, *sgw_mme_tree, *ne_types_tree;
proto_item *interfaces, *imsc_server, *lmgw, *lsgsn, *lggsn, *lrnc, *lbm_sc, *lmme, *lsgw, *lpdn_gw, *lenb;
proto_tree *interfaces_tree, *imsc_server_tree, *lmgw_tree, *lsgsn_tree, *lggsn_tree, *lrnc_tree, *lbm_sc_tree, *lmme_tree, *lsgw_tree, *lpdn_gw_tree, *lenb_tree;
int offset = 0;
#if 0
guint8 *trace_id = NULL;
#endif
guint8 tdl;
guint16 tid;
guint32 bit_offset;
dissect_e212_mcc_mnc(tvb, pinfo, tree, 0, TRUE);
offset +=3;
/* Append Trace ID to main tree */
tid = tvb_get_ntohs(tvb, offset);
proto_item_append_text(item, "Trace ID: %d ", tid);
/* Trace ID */
/*--------------------------------------------------
* trace_id = tvb_format_text(tvb, offset, 2);
* proto_tree_add_string(tree, hf_gtpv2_tra_info, tvb, offset, length, trace_id);
*--------------------------------------------------*/
proto_tree_add_text(tree, tvb, offset, 3, "Trace ID: %d", tid);
offset +=3;
/* Triggering Events, put all into a new tree called trigging_tree */
trigg = proto_tree_add_text(tree, tvb, offset, 8, "Trigging Events");
trigg_tree = proto_item_add_subtree(trigg, ett_gtpv2_tra_info_trigg);
/* Create all subtrees */
msc_server = proto_tree_add_text(trigg_tree, tvb, offset, 2, "MSC Server");
msc_server_tree = proto_item_add_subtree(msc_server, ett_gtpv2_tra_info_trigg_msc_server);
mgw = proto_tree_add_text(trigg_tree, tvb, offset + 2, 1, "MGW");
mgw_tree = proto_item_add_subtree(mgw, ett_gtpv2_tra_info_trigg_mgw);
sgsn = proto_tree_add_text(trigg_tree, tvb, offset + 3, 2, "SGSN");
sgsn_tree = proto_item_add_subtree(sgsn, ett_gtpv2_tra_info_trigg_sgsn);
ggsn = proto_tree_add_text(trigg_tree, tvb, offset + 5, 1, "GGSN");
ggsn_tree = proto_item_add_subtree(ggsn, ett_gtpv2_tra_info_trigg_ggsn);
bm_sc = proto_tree_add_text(trigg_tree, tvb, offset + 6, 1, "BM-SC");
bm_sc_tree = proto_item_add_subtree(bm_sc, ett_gtpv2_tra_info_trigg_bm_sc);
sgw_mme = proto_tree_add_text(trigg_tree, tvb, offset + 7, 1, "SGW MME");
sgw_mme_tree = proto_item_add_subtree(sgw_mme, ett_gtpv2_tra_info_trigg_sgw_mme);
/* MSC Server - 2 octets */
proto_tree_add_item(msc_server_tree, hf_gtpv2_tra_info_msc_momt_calls, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(msc_server_tree, hf_gtpv2_tra_info_msc_momt_sms, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(msc_server_tree, hf_gtpv2_tra_info_msc_lu_imsi_ad, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(msc_server_tree, hf_gtpv2_tra_info_msc_handovers, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(msc_server_tree, hf_gtpv2_tra_info_msc_ss, tvb, offset, 1, ENC_BIG_ENDIAN);
bit_offset = offset<<3;
proto_tree_add_bits_item(msc_server_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
offset += 1;
bit_offset = offset<<3;
proto_tree_add_bits_item(msc_server_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 8, ENC_BIG_ENDIAN);
offset += 1;
/* MGW - 1 octet */
proto_tree_add_item(mgw_tree, hf_gtpv2_tra_info_mgw_context, tvb, offset, 1, ENC_BIG_ENDIAN);
bit_offset = offset<<3;
proto_tree_add_bits_item(mgw_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 7, ENC_BIG_ENDIAN);
offset += 1;
/* SGSN - 2 octets */
proto_tree_add_item(sgsn_tree, hf_gtpv2_tra_info_sgsn_pdp_context, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(sgsn_tree, hf_gtpv2_tra_info_sgsn_momt_sms, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(sgsn_tree, hf_gtpv2_tra_info_sgsn_rau_gprs_ad, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(sgsn_tree, hf_gtpv2_tra_info_sgsn_mbms, tvb, offset, 1, ENC_BIG_ENDIAN);
bit_offset = offset<<3;
proto_tree_add_bits_item(sgsn_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(sgsn_tree, hf_gtpv2_tra_info_sgsn_reserved, tvb, offset, 1, ENC_BIG_ENDIAN);
bit_offset = offset<<3;
proto_tree_add_bits_item(sgsn_tree, hf_gtpv2_reserved, tvb, bit_offset, 8, ENC_BIG_ENDIAN);
offset += 1;
/* GGSN - 1 octet */
proto_tree_add_item(ggsn_tree, hf_gtpv2_tra_info_ggsn_pdp, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ggsn_tree, hf_gtpv2_tra_info_ggsn_mbms, tvb, offset, 1, ENC_BIG_ENDIAN);
bit_offset = offset<<3;
proto_tree_add_bits_item(ggsn_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 6, ENC_BIG_ENDIAN);
offset += 1;
/* BM-SC - 1 octet */
proto_tree_add_item(bm_sc_tree, hf_gtpv2_tra_info_bm_sc, tvb, offset, 1, ENC_BIG_ENDIAN);
bit_offset = offset<<3;
proto_tree_add_bits_item(bm_sc_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 7, ENC_BIG_ENDIAN);
offset += 1;
/* MME/SGW - 1 octet */
proto_tree_add_item(sgw_mme_tree, hf_gtpv2_tra_info_mme_sgw_ss, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(sgw_mme_tree, hf_gtpv2_tra_info_mme_sgw_sr, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(sgw_mme_tree, hf_gtpv2_tra_info_mme_sgw_iataud, tvb, offset, 1, ENC_BIG_ENDIAN);
bit_offset = offset<<3;
proto_tree_add_bits_item(sgw_mme_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 5, ENC_BIG_ENDIAN);
offset += 1;
/* Create NE Types subtree */
ne_types = proto_tree_add_text(tree, tvb, offset, 2, "List of NE Types");
ne_types_tree = proto_item_add_subtree(ne_types, ett_gtpv2_tra_info_ne_types);
/* List of NE Types */
proto_tree_add_item(ne_types_tree, hf_gtpv2_tra_info_lne_msc_s, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ne_types_tree, hf_gtpv2_tra_info_lne_mgw, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ne_types_tree, hf_gtpv2_tra_info_lne_sgsn, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ne_types_tree, hf_gtpv2_tra_info_lne_ggsn, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ne_types_tree, hf_gtpv2_tra_info_lne_rnc, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ne_types_tree, hf_gtpv2_tra_info_lne_bm_sc, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ne_types_tree, hf_gtpv2_tra_info_lne_mme, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ne_types_tree, hf_gtpv2_tra_info_lne_sgw, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(ne_types_tree, hf_gtpv2_tra_info_lne_pdn_gw, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ne_types_tree, hf_gtpv2_tra_info_lne_enb, tvb, offset, 1, ENC_BIG_ENDIAN);
bit_offset = offset<<3;
proto_tree_add_bits_item(ne_types_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 6, ENC_BIG_ENDIAN);
offset += 1;
/* Trace Depth Length */
tdl = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_tra_info_tdl, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Trace Depth List
* Will be displayed if length of Trace Depth Length is > 0
* The list will only contains UTF8String, RAW DATA
*/
proto_tree_add_text(tree, tvb, offset, tdl, "Trace Depth List: %s", tvb_bytes_to_str(tvb, offset, tdl));
offset += tdl;
/* Set up subtree interfaces and put all interfaces under it */
interfaces = proto_tree_add_text(tree, tvb, offset, 12, "List of Interfaces");
interfaces_tree = proto_item_add_subtree(interfaces, ett_gtpv2_tra_info_interfaces);
/* Create all subtrees */
imsc_server = proto_tree_add_text(interfaces_tree, tvb, offset, 2, "MSC Server");
imsc_server_tree = proto_item_add_subtree(imsc_server, ett_gtpv2_tra_info_interfaces_imsc_server);
lmgw = proto_tree_add_text(interfaces_tree, tvb, offset + 2, 1, "MGW");
lmgw_tree = proto_item_add_subtree(lmgw, ett_gtpv2_tra_info_interfaces_lmgw);
lsgsn = proto_tree_add_text(interfaces_tree, tvb, offset + 3, 2, "SGSN");
lsgsn_tree = proto_item_add_subtree(lsgsn, ett_gtpv2_tra_info_interfaces_lsgsn);
lggsn = proto_tree_add_text(interfaces_tree, tvb, offset + 5, 1, "GGSN");
lggsn_tree = proto_item_add_subtree(lggsn, ett_gtpv2_tra_info_interfaces_lggsn);
lrnc = proto_tree_add_text(interfaces_tree, tvb, offset + 6, 1, "RNC");
lrnc_tree = proto_item_add_subtree(lrnc, ett_gtpv2_tra_info_interfaces_lrnc);
lbm_sc = proto_tree_add_text(interfaces_tree, tvb, offset + 7, 1, "BM-SC");
lbm_sc_tree = proto_item_add_subtree(lbm_sc, ett_gtpv2_tra_info_interfaces_lbm_sc);
lmme = proto_tree_add_text(interfaces_tree, tvb, offset + 8, 1, "MME");
lmme_tree = proto_item_add_subtree(lmme, ett_gtpv2_tra_info_interfaces_lmme);
lsgw = proto_tree_add_text(interfaces_tree, tvb, offset + 9, 1, "SGW");
lsgw_tree = proto_item_add_subtree(lsgw, ett_gtpv2_tra_info_interfaces_lsgw);
lpdn_gw = proto_tree_add_text(interfaces_tree, tvb, offset + 10, 1, "PDN GW");
lpdn_gw_tree = proto_item_add_subtree(lpdn_gw, ett_gtpv2_tra_info_interfaces_lpdn_gw);
lenb = proto_tree_add_text(interfaces_tree, tvb, offset + 11, 1, "eNB");
lenb_tree = proto_item_add_subtree(lenb, ett_gtpv2_tra_info_interfaces_lpdn_lenb);
/* MSC Server - 2 octests */
proto_tree_add_item(imsc_server_tree, hf_gtpv2_tra_info_lmsc_a, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(imsc_server_tree, hf_gtpv2_tra_info_lmsc_lu, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(imsc_server_tree, hf_gtpv2_tra_info_lmsc_mc, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(imsc_server_tree, hf_gtpv2_tra_info_lmsc_map_g, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(imsc_server_tree, hf_gtpv2_tra_info_lmsc_map_b, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(imsc_server_tree, hf_gtpv2_tra_info_lmsc_map_e, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(imsc_server_tree, hf_gtpv2_tra_info_lmsc_map_f, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(imsc_server_tree, hf_gtpv2_tra_info_lmsc_cap, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(imsc_server_tree, hf_gtpv2_tra_info_lmsc_map_d, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(imsc_server_tree, hf_gtpv2_tra_info_lmsc_map_c, tvb, offset, 1, ENC_BIG_ENDIAN);
bit_offset = offset<<3;
proto_tree_add_bits_item(imsc_server_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 6, ENC_BIG_ENDIAN);
offset += 1;
/* MGW - 1 octet */
proto_tree_add_item(lmgw_tree, hf_gtpv2_tra_info_lmgw_mc, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lmgw_tree, hf_gtpv2_tra_info_lmgw_nb_up, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lmgw_tree, hf_gtpv2_tra_info_lmgw_lu_up, tvb, offset, 1, ENC_BIG_ENDIAN);
bit_offset = offset<<3;
proto_tree_add_bits_item(lmgw_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 5, ENC_BIG_ENDIAN);
offset += 1;
/* SGSN - 2 octets */
proto_tree_add_item(lsgsn_tree, hf_gtpv2_tra_info_lsgsn_gb, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lsgsn_tree, hf_gtpv2_tra_info_lsgsn_lu, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lsgsn_tree, hf_gtpv2_tra_info_lsgsn_gn, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lsgsn_tree, hf_gtpv2_tra_info_lsgsn_map_gr, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lsgsn_tree, hf_gtpv2_tra_info_lsgsn_map_gd, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lsgsn_tree, hf_gtpv2_tra_info_lsgsn_map_gf, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lsgsn_tree, hf_gtpv2_tra_info_lsgsn_gs, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lsgsn_tree, hf_gtpv2_tra_info_lsgsn_ge, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
bit_offset = offset<<3;
proto_tree_add_bits_item(lsgsn_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 8, ENC_BIG_ENDIAN);
offset += 1;
/* GGSN - 1 octet */
proto_tree_add_item(lggsn_tree, hf_gtpv2_tra_info_lggsn_gn, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lggsn_tree, hf_gtpv2_tra_info_lggsn_gi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lggsn_tree, hf_gtpv2_tra_info_lggsn_gmb, tvb, offset, 1, ENC_BIG_ENDIAN);
bit_offset = offset<<3;
proto_tree_add_bits_item(lggsn_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 5, ENC_BIG_ENDIAN);
offset += 1;
/* RNC - 1 octet */
proto_tree_add_item(lrnc_tree, hf_gtpv2_tra_info_lrnc_lu, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lrnc_tree, hf_gtpv2_tra_info_lrnc_lur, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lrnc_tree, hf_gtpv2_tra_info_lrnc_lub, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lrnc_tree, hf_gtpv2_tra_info_lrnc_uu, tvb, offset, 1, ENC_BIG_ENDIAN);
bit_offset = offset<<3;
proto_tree_add_bits_item(lrnc_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
offset += 1;
/* BM_SC - 1 octet */
proto_tree_add_item(lbm_sc_tree, hf_gtpv2_tra_info_lbm_sc_gmb, tvb, offset, 1, ENC_BIG_ENDIAN);
bit_offset = offset<<3;
proto_tree_add_bits_item(lbm_sc_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 7, ENC_BIG_ENDIAN);
offset += 1;
/* MME - 1 octet */
proto_tree_add_item(lmme_tree, hf_gtpv2_tra_info_lmme_s1_mme, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lmme_tree, hf_gtpv2_tra_info_lmme_s3, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lmme_tree, hf_gtpv2_tra_info_lmme_s6a, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lmme_tree, hf_gtpv2_tra_info_lmme_s10, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lmme_tree, hf_gtpv2_tra_info_lmme_s11, tvb, offset, 1, ENC_BIG_ENDIAN);
bit_offset = offset<<3;
proto_tree_add_bits_item(lmme_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
offset += 1;
/* SGW - 1 octet */
proto_tree_add_item(lsgw_tree, hf_gtpv2_tra_info_lsgw_s4, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lsgw_tree, hf_gtpv2_tra_info_lsgw_s5, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lsgw_tree, hf_gtpv2_tra_info_lsgw_s8b, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lsgw_tree, hf_gtpv2_tra_info_lsgw_s11, tvb, offset, 1, ENC_BIG_ENDIAN);
bit_offset = offset<<3;
proto_tree_add_bits_item(lsgw_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
offset += 1;
/* PDN GW - 1 octet */
proto_tree_add_item(lpdn_gw_tree, hf_gtpv2_tra_info_lpdn_gw_s2a, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lpdn_gw_tree, hf_gtpv2_tra_info_lpdn_gw_s2b, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lpdn_gw_tree, hf_gtpv2_tra_info_lpdn_gw_s2c, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lpdn_gw_tree, hf_gtpv2_tra_info_lpdn_gw_s5, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lpdn_gw_tree, hf_gtpv2_tra_info_lpdn_gw_s6c, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lpdn_gw_tree, hf_gtpv2_tra_info_lpdn_gw_gx, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lpdn_gw_tree, hf_gtpv2_tra_info_lpdn_gw_s8b, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lpdn_gw_tree, hf_gtpv2_tra_info_lpdn_gw_sgi, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* eNB - 1 octet */
proto_tree_add_item(lenb_tree, hf_gtpv2_tra_info_lenb_s1_mme, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lenb_tree, hf_gtpv2_tra_info_lenb_x2, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(lenb_tree, hf_gtpv2_tra_info_lenb_uu, tvb, offset, 1, ENC_BIG_ENDIAN);
bit_offset = offset<<3;
proto_tree_add_bits_item(lenb_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 5, ENC_BIG_ENDIAN);
/*--------------------------------------------------
* offset += 1;
*--------------------------------------------------*/
/* IP Address of Trace Collection Entity */
while ( (offset + 4) <= length ) {
offset += 1;
proto_tree_add_item(tree, hf_gtpv2_ipv4_addr, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 3;
}
}
/*
* 8.33 Paging Cause
* 8.33 Void (TS 129 274 V9.4.0 (2010-10))
*/
/* 8.35 Procedure Transaction ID (PTI) */
static void
dissect_gtpv2_pti(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
proto_tree_add_item(tree, hf_gtpv2_pti, tvb, 0, 1, ENC_BIG_ENDIAN);
}
/*
* 8.36 DRX Parameter
*/
static void
dissect_gtpv2_drx_param(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
/* 36.413 : 9.2.1.17 Paging Cause, void */
proto_tree_add_text(tree, tvb, offset, length, "DRX parameter: %s", tvb_bytes_to_str(tvb, offset, (length )));
}
/*
* 8.37 UE Network Capability
* UE Network Capability is coded as depicted in Figure 8.37-1. Actual coding of the UE Network Capability field is
* defined in 3GPP TS 24.301
*/
static void
dissect_gtpv2_ue_net_capability(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
de_emm_ue_net_cap(tvb, tree, pinfo, 0, length, NULL, 0);
}
/*
* 8.38 MM Context
*/
static const value_string gtpv2_mm_context_security_mode[] = {
{0, "GSM Key and Triplets"},
{1, "UMTS Key, Used Cipher and Quintuplets"},
{2, "GSM Key, Used Cipher and Quintuplets"},
{3, "UMTS Key and Quintuplets"},
{4, "EPS Security Context, Quadruplets and Quintuplets" },
{5, "UMTS Key, Quadruplets and Quintuplets"},
{0, NULL }
};
static const true_false_string gtpv2_nhi_vals = {
"NH (Next Hop) and NCC (Next Hop Chaining Count) are both present",
"NH (Next Hop) and NCC (Next Hop Chaining Count) not present",
};
/* Table 8.38-2: Used NAS Cipher Values */
static const value_string gtpv2_mm_context_unc_vals[] = {
{0, "No ciphering"},
{1, "GEA/1"},
{2, "GEA/2"},
{3, "GEA/3"},
{4, "GEA/4" },
{5, "GEA/5"},
{6, "GEA/6"},
{7, "GEA/7"},
{0, NULL}
};
/* Table 8.38-4: Used NAS integrity protection algorithm Values */
static const value_string gtpv2_mm_context_unipa_vals[] = {
{0, "No ciphering"},
{1, "128-EEA1"},
{2, "128-EEA2"},
{3, "EEA3"},
{4, "EEA4" },
{5, "EEA5"},
{6, "EEA6"},
{7, "EEA7"},
{0, NULL}
};
static void
dissect_gtpv2_mm_context_gsm_t(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
proto_item *flag;
proto_tree *flag_tree;
int offset;
offset = 0;
flag = proto_tree_add_text(tree, tvb, offset, 3, "MM Context flags");
flag_tree = proto_item_add_subtree(flag, ett_gtpv2_mm_context_flag);
/* Security Mode | Spare | DRXI | CKSN */
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_sm, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, offset<<3, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_drxi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_cksn, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Number of Triplet | Spare | UAMB RI | SAMB RI */
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_nr_tri, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, offset<<3, 5, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_text(flag_tree, tvb, offset, -1, "The rest of the IE not dissected yet");
}
static void
dissect_gtpv2_mm_context_utms_cq(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
proto_item *flag;
proto_tree *flag_tree;
int offset;
offset = 0;
flag = proto_tree_add_text(tree, tvb, offset, 3, "MM Context flags");
flag_tree = proto_item_add_subtree(flag, ett_gtpv2_mm_context_flag);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_sm, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, ((offset<<3)+3), 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_drxi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_cksn_ksi, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_nr_qui, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, offset<<3, 5, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_text(flag_tree, tvb, offset, -1, "The rest of the IE not dissected yet");
}
static void
dissect_gtpv2_mm_context_gsm_cq(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
proto_item *flag;
proto_tree *flag_tree;
int offset;
offset = 0;
flag = proto_tree_add_text(tree, tvb, offset, 3, "MM Context flags");
flag_tree = proto_item_add_subtree(flag, ett_gtpv2_mm_context_flag);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_sm, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, ((offset<<3)+3), 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_drxi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_cksn_ksi, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_nr_qui, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, offset<<3, 5, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_text(flag_tree, tvb, offset, -1, "The rest of the IE not dissected yet");
}
static void
dissect_gtpv2_mm_context_utms_q(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
proto_item *flag;
proto_tree *flag_tree;
int offset;
offset = 0;
flag = proto_tree_add_text(tree, tvb, offset, 3, "MM Context flags");
flag_tree = proto_item_add_subtree(flag, ett_gtpv2_mm_context_flag);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_sm, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, ((offset<<3)+3), 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_drxi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_ksi, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_nr_qui, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, offset<<3, 5, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_text(flag_tree, tvb, offset, -1, "The rest of the IE not dissected yet");
}
/* EPS Security Context and Quadruplets */
static void
dissect_gtpv2_mm_context_eps_qq(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
proto_item *flag/*, *auth_qua, *net_cap*/;
proto_tree *flag_tree/*, *auth_qua_tree, *net_cap_tree*/;
guint32 offset/*, nas_dc, nas_uc, i*/;
/*guint8 nhi, drxi, nr_qui, nr_qua, tmp;*/
offset = 0;
/*nhi = (tvb_get_guint8(tvb, offset) & 0x10);*/
/*drxi = (tvb_get_guint8(tvb, offset) & 0x08);*/
flag = proto_tree_add_text(tree, tvb, offset, 3, "MM Context flags");
flag_tree = proto_item_add_subtree(flag, ett_gtpv2_mm_context_flag);
/* Octet 5
* Bits
* 8 7 6 5 4 3 2 1
* Security Mode | NHI | DRXI | KSIASME
*/
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_sm, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_nhi, tvb, offset, 1, ENC_BIG_ENDIAN);
/* If NHI (Next Hop Indicator), bit 5 of octet 5, is set to "1",
* then the optional parameters NH (Next Hop) and NCC (Next
* Hop Chaining Count) are both present, otherwise their octets are not present.
*/
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_drxi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_ksi_a, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Octet 6
* Bits
* 8 7 6 5 4 3 2 1
* Number of | Number of | UAMB | OSCI
* Quintuplets | Quadruplet | RI |
*/
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_nr_qui, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_nr_qua, tvb, offset, 1, ENC_BIG_ENDIAN);
/* Octet 7 */
/* Used NAS integrity protection algorithm */
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_unipa, tvb, offset, 1, ENC_BIG_ENDIAN);
/* Used NAS Cipher */
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_unc, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Octet 8-10 NAS Downlink Count*/
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_nas_dl_cnt, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 3;
/* Octet 11-13 NAS Uplink Count */
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_nas_ul_cnt, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 3;
proto_tree_add_text(flag_tree, tvb, offset, -1, "The rest of the IE not dissected yet");
}
static void
dissect_gtpv2_mm_context_utms_qq(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
proto_item *flag;
proto_tree *flag_tree;
guint32 offset;
offset = 0;
flag = proto_tree_add_text(tree, tvb, offset, 3, "MM Context flags");
flag_tree = proto_item_add_subtree(flag, ett_gtpv2_mm_context_flag);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_sm, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_spare_bits, tvb, ((offset<<3)+3), 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_drxi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_ksi_a, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_nr_qui, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_nr_qua, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_spare_bits, tvb, offset<<3, 2, ENC_BIG_ENDIAN);
}
/*
* 8.39 PDN Connection (grouped IE)
*/
static void
dissect_gtpv2_PDN_conn(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree _U_, proto_item *item, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
int offset= 0;
proto_tree *grouped_tree;
tvbuff_t *new_tvb;
proto_item_append_text(item, "[Grouped IE]");
grouped_tree = proto_item_add_subtree(item, ett_gtpv2_PDN_conn);
new_tvb = tvb_new_subset(tvb, offset, length, length );
dissect_gtpv2_ie_common(new_tvb, pinfo, grouped_tree, offset, message_type);
}
/*
* 8.40 PDU Numbers
*/
static void
dissect_gtpv2_pdn_numbers(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
proto_item *nsapi_ti;
proto_tree *nsapi_tree;
guint8 nsapi;
guint16 dlgtpu_seq, ulgtpu_seq, send_npdu_nr, rec_npdu_nr;
int offset = 0;
nsapi = (tvb_get_guint8(tvb, offset) & 0x08);
nsapi_ti = proto_tree_add_text(tree, tvb, offset, 1, "NSAPI: %d", nsapi);
nsapi_tree = proto_item_add_subtree(nsapi_ti, ett_gtpv2_pdn_numbers_nsapi);
proto_tree_add_item(nsapi_tree, hf_gtpv2_spare_bits, tvb, offset<<3, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(nsapi_tree, hf_gtpv2_pdn_numbers_nsapi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_item_append_text(item, "NSAPI: %u", nsapi);
offset++;
dlgtpu_seq = tvb_get_ntohs(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 2, "DL GTP-U Sequence Number: %d", dlgtpu_seq);
offset += 2;
ulgtpu_seq = tvb_get_ntohs(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 2, "UL GTP-U Sequence Number: %d", ulgtpu_seq);
offset += 2;
send_npdu_nr = tvb_get_ntohs(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 2, "Send N-PDU Number: %d", send_npdu_nr);
offset += 2;
rec_npdu_nr = tvb_get_ntohs(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 2, "Receive N-PDU Number: %d", rec_npdu_nr);
}
/*
* 8.41 Packet TMSI (P-TMSI)
*/
static void
dissect_gtpv2_p_tmsi(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
/* The TMSI consists of 4 octets. It can be coded using a full hexadecimal representation. */
proto_tree_add_item(tree, hf_gtpv2_p_tmsi, tvb, offset, 4, ENC_BIG_ENDIAN);
proto_item_append_text(item, "%s", tvb_bytes_to_str(tvb, offset, 4));
}
/*
* 8.42 P-TMSI Signature
*/
static void
dissect_gtpv2_p_tmsi_sig(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
/* The P-TMSI Signature consists of 3 octets and may be allocated by the SGSN. */
proto_tree_add_item(tree, hf_gtpv2_p_tmsi_sig, tvb, offset, 3, ENC_BIG_ENDIAN);
proto_item_append_text(item, "%s", tvb_bytes_to_str(tvb, offset, 3));
}
/*
* 8.43 Hop Counter
*/
static void
dissect_gtpv2_hop_counter(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
guint8 hop_counter;
hop_counter = tvb_get_guint8(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 1, "Hop Counter: %d", hop_counter);
proto_item_append_text(item, "%d", hop_counter);
}
/*
* 8.44 UE Time Zone
*/
static const value_string gtpv2_ue_time_zone_dst_vals[] = {
{0, "No Adjustments for Daylight Saving Time"},
{1, "+1 Hour Adjustments for Daylight Saving Time"},
{2, "+2 Hour Adjustments for Daylight Saving Time"},
{3, "Spare"},
{0, NULL}
};
static void
dissect_gtpv2_ue_time_zone(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
/*
* UE Time Zone is used to indicate the offset between universal time and local time in steps of 15 minutes of where the
* UE currently resides. The "Time Zone" field uses the same format as the "Time Zone" IE in 3GPP TS 24.008 [5].
* (packet-gsm_a_dtap.c)
*/
de_time_zone(tvb, tree, pinfo, offset, 1, NULL, 0);
offset= offset+ 1;
proto_tree_add_item(item, hf_gtpv2_ue_time_zone_dst, tvb, offset, 1, ENC_BIG_ENDIAN);
}
/*
* 8.45 Trace Reference
*/
static void
dissect_gtpv2_trace_reference(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
guint32 trace_id;
gchar *mcc_mnc_str;
mcc_mnc_str = dissect_e212_mcc_mnc_ep_str(tvb, pinfo, tree, 0, TRUE);
offset += 3;
trace_id = tvb_get_ntohs(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 3, "Trace ID: %d", trace_id);
proto_item_append_text(item,"%s,Trace ID %u", mcc_mnc_str, trace_id);
}
/*
* 8.46 Complete Request Message
*/
static const value_string gtpv2_complete_req_msg_type_vals[] = {
{0, "Complete Attach Request Message" },
{1, "Complete TAU Request Message" },
{0, NULL }
};
static void
dissect_complete_request_msg(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
tvbuff_t *new_tvb;
int offset;
offset = 0;
proto_tree_add_item(tree, hf_gtpv2_complete_req_msg_type, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Add the Complete Request Message */
new_tvb = tvb_new_subset_remaining(tvb, offset);
call_dissector(nas_eps_handle, new_tvb, pinfo, tree);
}
/*
* 8.47 GUTI
*/
static void
dissect_gtpv2_guti(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
offset = 0;
dissect_e212_mcc_mnc(tvb, pinfo, tree, 0, TRUE);
offset += 3;
proto_tree_add_item(tree, hf_gtpv2_mme_grp_id, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_gtpv2_mme_code, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_gtpv2_m_tmsi, tvb, offset,4, ENC_BIG_ENDIAN);
}
/*
* 8.48 Fully Qualified Container (F-Container)
*/
static const value_string gtpv2_container_type_vals[] = {
{1, "UTRAN transparent container"},
{2, "BSS container"},
{3, "E-UTRAN transparent container"},
{0, NULL}
};
static void
dissect_gtpv2_F_container(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type, guint8 instance _U_)
{
tvbuff_t *tvb_new;
int offset = 0;
guint8 container_type;
/* Octets 8 7 6 5 4 3 2 1
* 5 Spare | Container Type
*/
proto_tree_add_item(tree, hf_gtpv2_container_type, tvb, offset, 1, ENC_BIG_ENDIAN);
container_type = tvb_get_guint8(tvb,offset);
offset++;
if(message_type == GTPV2_FORWARD_CTX_NOTIFICATION) {
switch(container_type){
case 3:
/* E-UTRAN transparent container */
tvb_new = tvb_new_subset_remaining(tvb, offset);
dissect_s1ap_ENB_StatusTransfer_TransparentContainer_PDU(tvb_new, pinfo, tree);
return;
default:
break;
}
}
/* 7.3.2 Forward Relocation Response
* E-UTRAN Transparent Container
* This IE is conditionally included only during a handover to
* E-UTRAN and contains the radio-related and core network
* information. If the Cause IE contains the value "Request
* accepted", this IE shall be included.
*/
proto_tree_add_text(tree, tvb, offset, length-offset, "Not dissected yet");
}
/*
* 8.49 Fully Qualified Cause (F-Cause)
*/
static const value_string gtpv2_cause_type_vals[] = {
{0, "Radio Network Layer"},
{1, "Transport Layer"},
{2, "NAS"},
{3, "Protocol"},
{4, "Miscellaneous"},
{5, "<spare>"},
{6, "<spare>"},
{7, "<spare>"},
{8, "<spare>"},
{9, "<spare>"},
{10, "<spare>"},
{11, "<spare>"},
{12, "<spare>"},
{13, "<spare>"},
{14, "<spare>"},
{15, "<spare>"},
{0, NULL}
};
static value_string_ext gtpv2_cause_type_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_cause_type_vals);
static void
dissect_gtpv2_F_cause(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
guint8 cause_type;
/* The value of Instance field of the F-Cause IE in a GTPv2 message shall indicate
* whether the F-Cause field contains RANAP Cause, BSSGP Cause or RAN Cause.
* If the F-Cause field contains RAN Cause, the Cause Type field shall contain
* the RAN cause subcategory as specified in 3GPP TS 36.413 [10] and it shall be
* encoded as in Table 8.49-1.
* If the F-Cause field contains BSSGP Cause or RANAP Cause,
* the Cause Type field shall be ignored by the receiver.
*/
if(message_type == GTPV2_FORWARD_RELOCATION_REQ) {
switch(instance) {
case 0:
proto_item_append_text(item, "[RAN Cause]");
proto_tree_add_item(tree, hf_gtpv2_cause_type, tvb, offset, 1, ENC_BIG_ENDIAN);
cause_type = tvb_get_guint8(tvb,offset);
offset++;
switch(cause_type){
case 0:
/* CauseRadioNetwork */
proto_tree_add_item(tree, hf_gtpv2_CauseRadioNetwork, tvb, offset, 1, ENC_BIG_ENDIAN);
break;
case 1:
/* CauseTransport */
proto_tree_add_item(tree, hf_gtpv2_CauseTransport, tvb, offset, 1, ENC_BIG_ENDIAN);
break;
case 2:
/* CauseNas */
proto_tree_add_item(tree, hf_gtpv2_CauseNas, tvb, offset, 1, ENC_BIG_ENDIAN);
break;
case 3:
/* CauseProtocol */
proto_tree_add_item(tree, hf_gtpv2_CauseProtocol, tvb, offset, 1, ENC_BIG_ENDIAN);
break;
case 4:
/* CauseMisc */
proto_tree_add_item(tree, hf_gtpv2_CauseMisc, tvb, offset, 1, ENC_BIG_ENDIAN);
break;
default:
break;
}
return;
break;
case 1:
proto_item_append_text(item, "[RANAP Cause]");
break;
case 2:
proto_item_append_text(item, "[BSSGP Cause]");
break;
default:
break;
}
}
proto_tree_add_text(tree, tvb, offset, length-offset, "Not dissected yet");
}
/*
* 8.50 Selected PLMN ID
*/
/*
* The Selected PLMN ID IE contains the core network operator selected for tne UE
* in a shared network. Octets 5-7 shall be encoded as the content part of the
* "Selected PLMN Identity" parameter in 3GPP TS 36.413 [10].
* -The Selected PLMN identity consists of 3 digits from MCC followed by
* either -a filler digit plus 2 digits from MNC (in case of 2 digit MNC) or
* -3 digits from MNC (in case of a 3 digit MNC).
*/
static void
dissect_gtpv2_sel_plmn_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
gchar *mcc_mnc_str;
mcc_mnc_str = dissect_e212_mcc_mnc_ep_str(tvb, pinfo, tree, 0, TRUE);
proto_item_append_text(item,"%s", mcc_mnc_str);
}
/*
* 8.51 Target Identification
*/
static const value_string gtpv2_target_type_vals[] = {
{0, "RNC ID"},
{1, "Macro eNodeB ID"},
{2, "Cell Identifier"},
{3, "Home eNodeB ID"},
{0, NULL}
};
static value_string_ext gtpv2_target_type_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_target_type_vals);
static void
dissect_gtpv2_target_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
tvbuff_t *tvb_new;
int offset = 0;
guint8 target_type;
proto_tree_add_item(tree, hf_gtpv2_target_type, tvb, 0, 1, ENC_BIG_ENDIAN);
target_type = tvb_get_guint8(tvb,offset);
offset++;
switch(target_type) {
case 0:
/* RNC ID
* In this case the Target ID field shall be encoded as the Target
* RNC-ID part of the "Target ID" parameter in 3GPP TS 25.413 [33]. Therefore, the "Choice Target ID" that indicates
* "Target RNC-ID" (numerical value of 0x20) shall not be included (value in octet 5 specifies the target type).
*/
tvb_new = tvb_new_subset_remaining(tvb, offset);
dissect_ranap_TargetRNC_ID_PDU(tvb_new, pinfo, tree);
return;
break;
case 1:
/* Macro eNodeB ID*/
tvb_new = tvb_new_subset_remaining(tvb, offset);
dissect_e212_mcc_mnc(tvb_new, pinfo, tree, 0, TRUE);
offset+=3;
/* The Macro eNodeB ID consists of 20 bits.
* Bit 4 of Octet 4 is the most significant bit and bit 1 of Octet 6 is the least significant bit.
*/
proto_tree_add_item(tree, hf_gtpv2_macro_enodeb_id, tvb, offset, 3, ENC_BIG_ENDIAN);
offset+=3;
/* Tracking Area Code (TAC) */
proto_tree_add_item(tree, hf_gtpv2_uli_tai_tac, tvb, offset, 2, ENC_BIG_ENDIAN);
return;
case 2:
/* Cell Identifier */
/* Target ID field shall be same as the Octets 3 to 10 of the Cell Identifier IEI
* in 3GPP TS 48.018 [34].
*/
case 3:
/* Home eNodeB ID */
/* Octet 10 to 12 Home eNodeB ID */
/* Octet 13 to 14 Tracking Area Code (TAC) */
default:
break;
}
proto_tree_add_text(tree, tvb, offset, length-offset, "Not dissected yet");
}
/*
* 8.52 Void
*/
/*
* 8.53 Packet Flow ID
*/
static void
dissect_gtpv2_pkt_flow_id(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
/* Octet 5 Spare EBI */
proto_tree_add_bits_item(tree, hf_gtpv2_spare_bits, tvb, offset<<3, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_ebi, tvb, offset, 2, ENC_BIG_ENDIAN);
offset++;
/* Packet Flow ID */
proto_tree_add_text(tree, tvb, offset, length, "Packet Flow ID: %s", tvb_bytes_to_str(tvb, offset, length-1));
}
/*
* 8.54 RAB Context
*/
static void
dissect_gtpv2_rab_context(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
guint16 dlgtpu_seq, ulgtpu_seq, dl_pdcp_seq, ul_pdcp_seq;
/* 5 Spare NSAPI */
proto_tree_add_bits_item(tree, hf_gtpv2_spare_bits, tvb, offset<<3, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_nsapi, tvb, offset, 1, ENC_BIG_ENDIAN);
/* 6 to 7 DL GTP-U Sequence Number */
dlgtpu_seq = tvb_get_ntohs(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 2, "DL GTP-U Sequence Number: %d", dlgtpu_seq);
offset += 2;
/* 8 to 9 UL GTP-U Sequence Number */
ulgtpu_seq = tvb_get_ntohs(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 2, "UL GTP-U Sequence Number: %d", ulgtpu_seq);
offset += 2;
/* 10 to 11 DL PDCP Sequence Number */
dl_pdcp_seq = tvb_get_ntohs(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 2, "DL PDCP Sequence Number: %d", dl_pdcp_seq);
offset += 2;
/* 12 to 13 UL PDCP Sequence Number */
ul_pdcp_seq = tvb_get_ntohs(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 2, "UL PDCP Sequence Number: %d", ul_pdcp_seq);
}
/*
* 8.55 Source RNC PDCP context info
*/
static void
dissect_gtpv2_s_rnc_pdcp_ctx_info(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
proto_tree_add_text(tree, tvb, 0, length, "RRC Container");
}
/*
* 8.56 UDP Source Port Number
*/
static void
dissect_udp_s_port_nr(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
proto_tree_add_text(tree, tvb, 0, 2, "UPD Source Port Number: %u", tvb_get_ntohs(tvb, 0));
proto_item_append_text(item, "%u", tvb_get_ntohs(tvb, 0));
}
/*
* 8.57 APN Restriction
*/
static void
dissect_gtpv2_apn_rest(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
guint8 type_value;
type_value = tvb_get_guint8(tvb, 0);
proto_tree_add_item(tree, hf_gtpv2_apn_rest, tvb, 0, 1, ENC_BIG_ENDIAN);
proto_item_append_text(item, "value %u", type_value);
}
/*
* 8.58 Selection Mode
*/
static const value_string gtpv2_selec_mode_vals[] = {
{0, "MS or network provided APN, subscribed verified"},
{1, "MS provided APN, subscription not verified"},
{2, "Network provided APN, subscription not verified"},
{3, "Network provided APN, subscription not verified (Basically for Future use"},
{0, NULL}
};
static void
dissect_gtpv2_selec_mode(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
int offset=0;
guint8 ss_mode;
ss_mode = tvb_get_guint8(tvb, offset) & 0x03;
proto_tree_add_item(tree, hf_gtpv2_selec_mode, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_item_append_text(item, "%s", val_to_str(ss_mode, gtpv2_selec_mode_vals, "Unknown"));
}
/*
* 8.59 Source Identification
*/
static const value_string gtpv2_source_ident_types[] = {
{0, "Cell ID"},
{1, "RNC ID"},
{2, "eNodeB ID(Reserved, used in erlier v of proto.)"},
{0, NULL}
};
static void
dissect_gtpv2_source_ident(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
proto_item *expert_item;
int offset=0;
guint8 source_type;
/* Octet 5 to 12 Target Cell ID */
de_cell_id(tvb, tree, pinfo, offset, 8, NULL, 0);
offset+=8;
/* Octet 13 Source Type */
source_type = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_source_type, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Octet 14 to (n+4) Source ID */
switch(source_type){
case 0:
/* The Source Type is Cell ID for PS handover from GERAN A/Gb mode. In this case the coding of the Source ID field
* shall be same as the Octets 3 to 10 of the Cell Identifier IEI in 3GPP TS 48.018 [34].
*/
de_cell_id(tvb, tree, pinfo, offset, 8, NULL, 0);
offset+=8;
break;
case 1:
/* The Source Type is RNC ID for PS handover from GERAN Iu mode or for inter-RAT handover from UTRAN. In this
* case the Source ID field shall be encoded as as the Source RNC-ID part of the "Source ID" parameter in 3GPP TS
* 25.413 [33].
*/
/* RNC-ID M INTEGER (0..4095) */
break;
case 2:
break;
default:
expert_item = proto_tree_add_text(tree, tvb, offset-1, 1, "Unknown source type");
expert_add_info_format(pinfo, expert_item, PI_PROTOCOL, PI_ERROR, "Unknown source type");
PROTO_ITEM_SET_GENERATED(expert_item);
break;
}
}
/*
* 8.60 Bearer Control Mode
*/
static const value_string gtpv2_bearer_control_mode_vals[] = {
{0, "Selected Bearer Control Mode-'MS_only'"},
{1, "Selected Bearer Control Mode-'Network_only'"},
{2, "Selected Bearer Control Mode-'MS/NW'"},
{0, NULL}
};
static const value_string gtpv2_bearer_control_mode_short_vals[] = {
{0, "MS_only"},
{1, "Network_only"},
{2, "MS/NW"},
{0, NULL}
};
static void
dissect_gtpv2_bearer_control_mode(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
guint8 bcm;
proto_tree_add_item(tree, hf_gtpv2_bearer_control_mode, tvb, 0, 1, ENC_BIG_ENDIAN);
/* Add Bearer Control Mode to tree */
bcm = tvb_get_guint8(tvb, 0);
proto_item_append_text(item, "%s", val_to_str(bcm, gtpv2_bearer_control_mode_short_vals, "Unknown"));
}
/*
* 8.61 Change Reporting Action
*/
static const value_string gtpv2_cng_rep_act_vals[] = {
{0, "Stop Reporting"},
{1, "Start Reporting CGI/SAI"},
{2, "Start Reporting RAI"},
{3, "Start Reporting TAI"},
{4, "Start Reporting ECGI"},
{5, "Start Reporting CGI/SAI and RAI"},
{6, "Start Reporting TAI and ECGI"},
{0, NULL}
};
static void
dissect_gtpv2_cng_rep_act(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
guint8 action;
/* Add Action to tree */
action = tvb_get_guint8(tvb, 0);
proto_tree_add_item(tree, hf_gtpv2_cng_rep_act, tvb, 0, 1, ENC_BIG_ENDIAN);
proto_item_append_text(item, "%s", val_to_str(action, gtpv2_cng_rep_act_vals, "Unknown"));
}
/*
* 8.62 Fully qualified PDN Connection Set Identifier (FQ-CSID)
*/
static const value_string gtpv2_fq_csid_type_vals[] = {
{0, "Global unicast IPv4 address"},
{1, "Global unicast IPv6 address"},
{2, "4 octets long field"},
{0, NULL}
};
static void
dissect_gtpv2_fq_csid(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
proto_item *expert_item;
int offset = 0;
guint8 octet,node_id_type, csids;
guint32 node_id, node_id_mcc_mnc;
/* Octet 5 Node-ID Type Number of CSIDs= m */
octet = tvb_get_guint8(tvb, offset);
node_id_type = octet >> 4;
csids = octet & 0x0f;
proto_tree_add_item(tree, hf_gtpv2_fq_csid_type, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_fq_csid_nr, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
switch(node_id_type){
case 0:
/* Indicates that Node-ID is a global unicast IPv4 address and p = 9 */
proto_tree_add_item(tree, hf_gtpv2_fq_csid_ipv4, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
break;
case 1:
/* Indicates that Node-ID is a global unicast IPv6 address and p = 21 */
proto_tree_add_item(tree, hf_gtpv2_fq_csid_ipv6, tvb, offset, 16, ENC_BIG_ENDIAN);
offset += 16;
break;
case 2:
/* Node-ID is a 4 octets long field with a 32 bit value stored in network order, and p= 9. The coding
* of the field is specified below:
* - Most significant 20 bits are the binary encoded value of (MCC * 1000 + MNC).
* - Least significant 12 bits is a 12 bit integer assigned by an operator to an MME, SGW or PGW. Other values of
* Node-ID Type are reserved.
*/
node_id = tvb_get_ntohl(tvb, offset);
node_id_mcc_mnc = node_id >> 12;
node_id = node_id & 0xfff;
proto_tree_add_text(tree, tvb, offset, 4, "Node-ID: MCC+MNC %u, Id: %u",node_id_mcc_mnc, node_id);
offset+=4;
break;
default:
expert_item = proto_tree_add_text(tree, tvb, offset-1, 1, "Wrong Node-ID Type %u, should be 0-2(Or tis is a newer spec)",node_id_type);
expert_add_info_format(pinfo, expert_item, PI_PROTOCOL, PI_ERROR, "Wrong Node-ID Type %u, should be 0-2(Or tis is a newer spec)",node_id_type);
PROTO_ITEM_SET_GENERATED(expert_item);
return;
}
/* First PDN Connection Set Identifier (CSID)
* Second PDN Connection Set Identifier (CSID)
* :
* m-th PDN Connection Set Identifier (CSID)
*/
while ( csids-- ) {
proto_tree_add_item(tree, hf_gtpv2_fq_csid_id, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
}
}
/*
* 8.63 Channel needed
*/
static void
dissect_gtpv2_channel_needed(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
/* The Channel needed shall be coded as depicted in Figure 8.63-1. Channel needed is coded as the IEI part and the value
* part of the Channel Needed IE defined in 3GPP TS 44.018[28]
*/
de_rr_chnl_needed(tvb, tree, pinfo, 0, length, NULL, 0);
}
/*
* 8.64 eMLPP Priority
* The eMLPP-Priority shall be coded as depicted in Figure 8.64-1. The eMLPP Priority is coded as the value part of the
* eMLPP-Priority IE defined in 3GPP TS 48.008 [29] (not including 3GPP TS 48.008 IEI and 3GPP TS 48.008 [29]
* length indicator).
*/
static void
dissect_gtpv2_emlpp_pri(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
be_emlpp_prio(tvb, tree, pinfo, 0, length, NULL, 0);
}
/*
* 8.65 Node Type
*/
static const value_string gtpv2_node_type_vals[] = {
{0, "MME"},
{1, "SGSN"},
{0, NULL}
};
static void
dissect_gtpv2_node_type(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
guint8 node_type;
proto_tree_add_item(tree, hf_gtpv2_node_type, tvb, 0, 1, ENC_BIG_ENDIAN);
/* Append Node Type to tree */
node_type = tvb_get_guint8(tvb, 0);
proto_item_append_text(item, "%s", val_to_str(node_type, gtpv2_node_type_vals, "Unknown"));
}
/*
* 8.66 Fully Qualified Domain Name (FQDN)
*/
static void
dissect_gtpv2_fqdn(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0, name_len, tmp;
guint8 *fqdn = NULL;
/* The FQDN field encoding shall be identical to the encoding of
* a FQDN within a DNS message of section 3.1 of IETF
* RFC 1035 [31] but excluding the trailing zero byte.
*/
if (length > 0) {
name_len = tvb_get_guint8(tvb, offset);
if (name_len < 0x20) {
fqdn = tvb_get_ephemeral_string(tvb, offset + 1, length - 1);
for (;;) {
if (name_len >= length - 1)
break;
tmp = name_len;
name_len = name_len + fqdn[tmp] + 1;
fqdn[tmp] = '.';
}
} else {
fqdn = tvb_get_ephemeral_string(tvb, offset, length);
}
proto_tree_add_string(tree, hf_gtpv2_fqdn, tvb, offset, length, fqdn);
proto_item_append_text(item, "%s", fqdn);
}
}
/*
* 8.67 Private Extension
*/
static void
dissect_gtpv2_private_ext(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
/* oct 5 -7 Enterprise ID */
proto_tree_add_item(tree, hf_gtpv2_enterprise_id, tvb, offset, 2, ENC_BIG_ENDIAN);
offset+=2;
proto_tree_add_text(tree, tvb, offset, length-2, "Proprietary value");
}
/*
* 8.68 Transaction Identifier (TI)
*/
static void
dissect_gtpv2_ti(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
/* 5 to (n+4) Transaction Identifier */
proto_tree_add_item(tree, hf_gtpv2_ti, tvb, 0, length, ENC_BIG_ENDIAN);
}
typedef struct _gtpv2_ie {
int ie_type;
void (*decode) (tvbuff_t *, packet_info *, proto_tree *, proto_item *, guint16, guint8, guint8);
} gtpv2_ie_t;
static const gtpv2_ie_t gtpv2_ies[] = {
{GTPV2_IE_IMSI, dissect_gtpv2_imsi},
{GTPV2_IE_CAUSE, dissect_gtpv2_cause}, /* 2, Cause (without embedded offending IE) 8.4 */
{GTPV2_REC_REST_CNT, dissect_gtpv2_recovery}, /* 3, Recovery (Restart Counter) 8.5 */
/* 4-50 Reserved for S101 interface Extendable / See 3GPP TS 29.276 [14] */
/*Start SRVCC Messages 3GPP TS 29.280 */
{GTPV2_IE_STN_SR, dissect_gtpv2_stn_sr}, /* 51 51 STN-SR */
{GTPV2_IE_SRC_TGT_TRANS_CON, dissect_gtpv2_src_tgt_trans_con}, /* 52 Source to Target Transparent Container */
{GTPV2_IE_TGT_SRC_TRANS_CON , dissect_gtpv2_tgt_src_trans_con}, /* 53 Target to Source Transparent Container */
{GTPV2_IE_MM_CON_EUTRAN_SRVCC, dissect_gtpv2_mm_con_eutran_srvcc}, /* 54 MM Context for E-UTRAN SRVCC */
{GTPV2_IE_MM_CON_UTRAN_SRVCC, dissect_gtpv2_mm_con_utran_srvcc}, /* 55 MM Context for UTRAN SRVCC */
{GTPV2_IE_SRVCC_CAUSE, dissect_gtpv2_srvcc_cause}, /* 56 SRVCC Cause */
{GTPV2_IE_TGT_RNC_ID, dissect_gtpv2_tgt_rnc_id}, /* 57 Target RNC ID */
{GTPV2_IE_TGT_GLOGAL_CELL_ID, dissect_gtpv2_tgt_global_cell_id}, /* 58 Target Global Cell ID */
{GTPV2_IE_TEID_C, dissect_gtpv2_teid_c}, /* 59 TEID-C */
{GTPV2_IE_SV_FLAGS, dissect_gtpv2_sv_flags}, /* 60 Sv Flags */
{GTPV2_IE_SAI, dissect_gtpv2_sai}, /* 61 Service Area Identifie */
/* 61-70 Reserved for Sv interface Extendable / See 3GPP TS 29.280 [15] */
{GTPV2_APN, dissect_gtpv2_apn}, /* 71, Access Point Name (APN) 8.6 */
{GTPV2_AMBR, dissect_gtpv2_ambr}, /* 72, Aggregate Maximum Bit Rate (AMBR) */
{GTPV2_EBI, dissect_gtpv2_ebi}, /* 73, EPS Bearer ID (EBI) 8.8 */
{GTPV2_IP_ADDRESS, dissect_gtpv2_ip_address}, /* 74, IP Address */
{GTPV2_MEI, dissect_gtpv2_mei}, /* 74, Mobile Equipment Identity */
{GTPV2_IE_MSISDN, dissect_gtpv2_msisdn}, /* 76, MSISDN 8.11 */
{GTPV2_INDICATION, dissect_gtpv2_ind}, /* 77 Indication 8.12 */
{GTPV2_PCO, dissect_gtpv2_pco}, /* 78 Protocol Configuration Options (PCO) 8.13 */
{GTPV2_PAA, dissect_gtpv2_paa}, /* 79 PDN Address Allocation (PAA) 8.14 */
{GTPV2_BEARER_QOS,dissect_gtpv2_bearer_qos}, /* 80 Bearer Level Quality of Service (Bearer QoS) 8.15 */
{GTPV2_IE_FLOW_QOS, dissect_gtpv2_flow_qos}, /* 81 Flow Quality of Service (Flow QoS) 8.16 */
{GTPV2_IE_RAT_TYPE, dissect_gtpv2_rat_type}, /* 82, RAT Type 8.17 */
{GTPV2_IE_SERV_NET, dissect_gtpv2_serv_net}, /* 83, Serving Network 8.18 */
{GTPV2_IE_BEARER_TFT, dissect_gtpv2_bearer_tft}, /* 84, Bearer TFT 8.19 */
{GTPV2_IE_TAD, dissect_gtpv2_tad}, /* 85, Traffic Aggregate Description 8.20 */
{GTPV2_IE_ULI, dissect_gtpv2_uli}, /* 86, User Location Info (ULI) 8.22 */
{GTPV2_IE_F_TEID, dissect_gtpv2_f_teid}, /* 87, Fully Qualified Tunnel Endpoint Identifier (F-TEID) 8.23 */
{GTPV2_IE_TMSI, dissect_gtpv2_tmsi}, /* 88, TMSI 8.23 */
{GTPV2_IE_GLOBAL_CNID, dissect_gtpv2_g_cn_id}, /* 89, Global CN-Id 8.25 */
{GTPV2_IE_S103PDF, dissect_gtpv2_s103pdf}, /* 90, S103 PDN Data Forwarding Info (S103PDF) 8.25 */
{GTPV2_IE_S1UDF, dissect_gtpv2_s1udf}, /* 91, S1-U Data Forwarding (S1UDF) 8.26 */
{GTPV2_IE_DEL_VAL, dissect_gtpv2_delay_value}, /* 92, Delay Value 8.29 */
{GTPV2_IE_BEARER_CTX,dissect_gtpv2_bearer_ctx}, /* 93, Bearer Context 8.31 */
{GTPV2_IE_CHAR_ID, dissect_gtpv2_charging_id}, /* 94, Charging Id */
{GTPV2_IE_CHAR_CHAR, dissect_gtpv2_char_char}, /* 95 Charging Characteristic */
{GTPV2_IE_TRA_INFO, dissect_gtpv2_tra_info}, /* 96, Trace Information 8.31 */
{GTPV2_BEARER_FLAG, dissect_gtpv2_bearer_flag}, /* 97, Bearer Flag */
/* 98, Void 8.33 */
{GTPV2_IE_PDN_TYPE, dissect_gtpv2_pdn_type}, /* 99, PDN Type */
{GTPV2_IE_PTI, dissect_gtpv2_pti}, /* 100, Procedure Transaction Id */
{GTPV2_IE_DRX_PARAM, dissect_gtpv2_drx_param}, /* 101, DRX Parameter 8.36 */
{GTPV2_IE_UE_NET_CAPABILITY, dissect_gtpv2_ue_net_capability}, /* 102, UE network capability 8.37 */
{GTPV2_IE_MM_CONTEXT_GSM_T, dissect_gtpv2_mm_context_gsm_t}, /* 103, MM Context 8.38 GSM Key and Triplets */
{GTPV2_IE_MM_CONTEXT_UTMS_CQ, dissect_gtpv2_mm_context_utms_cq}, /* 104, MM Context 8.38 */
{GTPV2_IE_MM_CONTEXT_GSM_CQ, dissect_gtpv2_mm_context_gsm_cq}, /* 105, MM Context 8.38 */
{GTPV2_IE_MM_CONTEXT_UTMS_Q, dissect_gtpv2_mm_context_utms_q}, /* 106, MM Context 8.38 */
{GTPV2_IE_MM_CONTEXT_EPS_QQ, dissect_gtpv2_mm_context_eps_qq}, /* 107, MM Context 8.38 */
{GTPV2_IE_MM_CONTEXT_UTMS_QQ, dissect_gtpv2_mm_context_utms_qq}, /* 108, MM Context 8.38 */
{GTPV2_IE_PDN_CONNECTION, dissect_gtpv2_PDN_conn}, /* 109, PDN Connection */
{GTPV2_IE_PDN_NUMBERS, dissect_gtpv2_pdn_numbers}, /* 110, PDN Numbers 8.40 */
{GTPV2_IE_P_TMSI, dissect_gtpv2_p_tmsi}, /* 111, P-TMSI 8.41 */
{GTPV2_IE_P_TMSI_SIG, dissect_gtpv2_p_tmsi_sig}, /* 112, P-TMSI Signature 8.42 */
{GTPV2_IE_HOP_COUNTER, dissect_gtpv2_hop_counter}, /* 113, Hop Counter 8.43 */
{GTPV2_IE_UE_TIME_ZONE, dissect_gtpv2_ue_time_zone}, /* 114, UE Time Zone */
{GTPV2_IE_TRACE_REFERENCE, dissect_gtpv2_trace_reference}, /* 115, Trace Reference 8.45 */
{GTPV2_IE_COMPLETE_REQUEST_MSG, dissect_complete_request_msg}, /* 116, Complete Request message 8.46 */
{GTPV2_IE_GUTI, dissect_gtpv2_guti}, /* 117, GUTI 8.47 */
{GTPV2_IE_F_CONTAINER, dissect_gtpv2_F_container}, /* 118, Fully Qualified Container (F-Container) */
{GTPV2_IE_F_CAUSE, dissect_gtpv2_F_cause}, /* 119, Fully Qualified Cause (F-Cause) */
{GTPV2_IE_SEL_PLMN_ID, dissect_gtpv2_sel_plmn_id}, /* 120, Selected PLMN ID 8.50 */
{GTPV2_IE_TARGET_ID, dissect_gtpv2_target_id}, /* 121, Target Identification */
/* 122, Void 8.52 */
{GTPV2_IE_PKT_FLOW_ID, dissect_gtpv2_pkt_flow_id}, /* 123, Packet Flow ID 8.53 */
{GTPV2_IE_RAB_CONTEXT, dissect_gtpv2_rab_context}, /* 124, RAB Context 8.54 */
{GTPV2_IE_S_RNC_PDCP_CTX_INFO, dissect_gtpv2_s_rnc_pdcp_ctx_info}, /* 125, Source RNC PDCP context info 8.55 */
{GTPV2_IE_UDP_S_PORT_NR, dissect_udp_s_port_nr}, /* 126, UDP Source Port Number 8.56 */
{GTPV2_IE_APN_RESTRICTION, dissect_gtpv2_apn_rest}, /* 127, APN Restriction */
{GTPV2_IE_SEL_MODE,dissect_gtpv2_selec_mode}, /* 128 Selection Mode */
{GTPV2_IE_SOURCE_IDENT, dissect_gtpv2_source_ident}, /* 129, Source Identification 8.59 */
{GTPV2_IE_BEARER_CONTROL_MODE,dissect_gtpv2_bearer_control_mode}, /* 130 Bearer Control Mode*/
{GTPV2_IE_CNG_REP_ACT ,dissect_gtpv2_cng_rep_act}, /* 131 Change Reporting Action 8.61 */
{GTPV2_IE_FQ_CSID, dissect_gtpv2_fq_csid}, /* 132, Fully Qualified PDN Connection Set Identifier (FQ-CSID) 8.62 */
{GTPV2_IE_CHANNEL_NEEDED, dissect_gtpv2_channel_needed}, /* 133, Channel Needed 8.63 */
{GTPV2_IE_EMLPP_PRI, dissect_gtpv2_emlpp_pri}, /* 134, eMLPP Priority 8.64 */
{GTPV2_IE_NODE_TYPE ,dissect_gtpv2_node_type}, /* 135 Node Type 8.65 */
{GTPV2_IE_FQDN, dissect_gtpv2_fqdn}, /* 136 8.66 Fully Qualified Domain Name (FQDN) */
{GTPV2_IE_TI, dissect_gtpv2_ti}, /* 137 8.68 Transaction Identifier (TI) */
/* 137-254 Spare. For future use. FFS */
{GTPV2_IE_PRIVATE_EXT,dissect_gtpv2_private_ext},
{0, dissect_gtpv2_unknown}
};
static void
dissect_gtpv2_ie_common(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, gint offset, guint8 message_type)
{
proto_tree *ie_tree;
proto_item *ti;
tvbuff_t *ie_tvb;
guint8 type, instance;
guint16 length;
int i;
/*
* Octets 8 7 6 5 4 3 2 1
* 1 Type
* 2-3 Length = n
* 4 CR Spare Instance
* 5-(n+4) IE specific data
*/
while(offset < (gint)tvb_reported_length(tvb)){
/* Get the type and length */
type = tvb_get_guint8(tvb,offset);
length = tvb_get_ntohs(tvb, offset+1);
ti = proto_tree_add_text(tree, tvb, offset, 4 + length, "%s : ", val_to_str(type, gtpv2_element_type_vals, "Unknown"));
ie_tree = proto_item_add_subtree(ti, ett_gtpv2_ie);
/* Octet 1 */
proto_tree_add_item(ie_tree, hf_gtpv2_ie, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/*Octet 2 - 3 */
proto_tree_add_item(ie_tree, hf_gtpv2_ie_len, tvb, offset, 2, ENC_BIG_ENDIAN);
offset+=2;
/* CR Spare Instance Octet 4*/
proto_tree_add_item(ie_tree, hf_gtpv2_cr, tvb, offset, 1, ENC_BIG_ENDIAN);
instance = tvb_get_guint8(tvb,offset)& 0x0f;
proto_tree_add_item(ie_tree, hf_gtpv2_instance, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* TODO: call IE dissector here */
if(type==GTPV2_IE_RESERVED){
/* Treat IE type zero specal as type zero is used to end the loop in the else branch */
proto_tree_add_text(ie_tree, tvb, offset, length, "IE type Zero is Reserved and should not be used");
}else{
i = -1;
/* Loop over the IE dissector list to se if we find an entry, the last entry will have ie_type=0 breaking the loop */
while (gtpv2_ies[++i].ie_type){
if (gtpv2_ies[i].ie_type == type)
break;
}
/* Just give the IE dissector the IE */
ie_tvb = tvb_new_subset_remaining(tvb, offset);
(*gtpv2_ies[i].decode) (ie_tvb, pinfo , ie_tree, ti, length, message_type, instance);
}
offset = offset + length;
}
}
static void
dissect_gtpv2(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree)
{
proto_tree *gtpv2_tree, *flags_tree;
proto_item *ti, *tf;
guint8 message_type, t_flag;
int offset = 0;
/* Currently we get called from the GTP dissector no need to check the version */
col_set_str(pinfo->cinfo, COL_PROTOCOL, "GTPv2");
col_clear(pinfo->cinfo, COL_INFO);
/* message type is in octet 2 */
message_type = tvb_get_guint8(tvb,1);
col_add_str(pinfo->cinfo, COL_INFO, val_to_str(message_type, gtpv2_message_type_vals, "Unknown"));
proto_tree_add_item(tree, proto_gtpv2, tvb, offset, -1, ENC_BIG_ENDIAN);
if (tree) {
ti = proto_tree_add_text(tree, tvb, offset, -1, "%s", val_to_str(message_type, gtpv2_message_type_vals, "Unknown"));
gtpv2_tree = proto_item_add_subtree(ti, ett_gtpv2);
/* Control Plane GTP uses a variable length header. Control Plane GTP header
* length shall be a multiple of 4 octets.
* Figure 5.1-1 illustrates the format of the GTPv2-C Header.
* Bits 8 7 6 5 4 3 2 1
* Octets 1 Version P T Spare Spare Spare
* 2 Message Type
* 3 Message Length (1st Octet)
* 4 Message Length (2nd Octet)
* m-k(m+3) If T flag is set to 1, then TEID shall be placed into octets 5-8.
* Otherwise, TEID field is not present at all.
* n-(n+2) Sequence Number
* (n+3) Spare
* Figure 5.1-1: General format of GTPv2 Header for Control Plane
*/
tf = proto_tree_add_item(gtpv2_tree, hf_gtpv2_flags, tvb, offset, 1, ENC_BIG_ENDIAN);
flags_tree = proto_item_add_subtree(tf, ett_gtpv2_flags);
/* Octet 1 */
t_flag = (tvb_get_guint8(tvb,offset) & 0x08)>>3;
proto_tree_add_item(flags_tree, hf_gtpv2_version, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flags_tree, hf_gtpv2_p, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flags_tree, hf_gtpv2_t, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Octet 2 */
proto_tree_add_item(gtpv2_tree, hf_gtpv2_message_type, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Octet 3 - 4 */
proto_tree_add_item(gtpv2_tree, hf_gtpv2_msg_length, tvb, offset, 2, ENC_BIG_ENDIAN);
offset+=2;
if(t_flag){
/* Tunnel Endpoint Identifier 4 octets */
proto_tree_add_item(gtpv2_tree, hf_gtpv2_teid, tvb, offset, 4, ENC_BIG_ENDIAN);
offset+=4;
}
/* Sequence Number 3 octets */
proto_tree_add_item(gtpv2_tree, hf_gtpv2_seq, tvb, offset, 3, ENC_BIG_ENDIAN);
offset+=3;
/* Spare 1 octet */
proto_tree_add_item(gtpv2_tree, hf_gtpv2_spare, tvb, offset, 1, ENC_BIG_ENDIAN);
offset+=1;
dissect_gtpv2_ie_common(tvb, pinfo, gtpv2_tree, offset, message_type);
}
}
void proto_register_gtpv2(void)
{
static hf_register_info hf_gtpv2[] = {
{ &hf_gtpv2_reserved,
{"Reserved bit(s)", "gtpv2.reserved",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Reserved", HFILL }
},
{ &hf_gtpv2_spare_half_octet,
{"Spare half octet", "gtpv2.spare_half_octet",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_gtpv2_spare_bits,
{"Spare bit(s)", "gtpv2.spare_bits",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{&hf_gtpv2_flags,
{"Flags", "gtpv2.flags",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_version,
{"Version", "gtpv2.version",
FT_UINT8, BASE_DEC, NULL, 0xe0,
NULL, HFILL}
},
{&hf_gtpv2_p,
{"P", "gtpv2.p",
FT_UINT8, BASE_DEC, NULL, 0x10,
"If Piggybacked message is present or not", HFILL}
},
{ &hf_gtpv2_t,
{"T", "gtpv2.t",
FT_UINT8, BASE_DEC, NULL, 0x08,
"If TEID field is present or not", HFILL}
},
{ &hf_gtpv2_message_type,
{"Message Type", "gtpv2.message_type",
FT_UINT8, BASE_DEC, VALS(gtpv2_message_type_vals), 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_msg_length,
{"Message Length", "gtpv2.msg_lengt",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_teid,
{"Tunnel Endpoint Identifier", "gtpv2.teid",
FT_UINT32, BASE_DEC, NULL, 0x0,
"TEID", HFILL}
},
{ &hf_gtpv2_seq,
{"Sequence Number", "gtpv2.seq",
FT_UINT32, BASE_DEC, NULL, 0x0,
"SEQ", HFILL}
},
{ &hf_gtpv2_spare,
{"Spare", "gtpv2.spare",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_ie,
{"IE Type", "gtpv2.ie_type",
FT_UINT8, BASE_DEC, VALS(gtpv2_element_type_vals), 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_ie_len,
{"IE Length", "gtpv2.ie_len",
FT_UINT16, BASE_DEC, NULL, 0x0,
"length of the information element excluding the first four octets", HFILL}
},
{ &hf_gtpv2_cr,
{"CR flag", "gtpv2.cr",
FT_UINT8, BASE_DEC, NULL, 0xf0,/* SRVCC */
NULL, HFILL}
},
{ &hf_gtpv2_instance,
{"Instance", "gtpv2.instance",
FT_UINT8, BASE_DEC, NULL, 0x0f,
NULL, HFILL}
},
{&hf_gtpv2_imsi,
{"IMSI(International Mobile Subscriber Identity number)", "gtpv2.imsi",
FT_STRING, BASE_NONE, NULL, 0,
NULL, HFILL}
},
{ &hf_gtpv2_ipv4_addr,
{"IPv4 Address", "gtpv2.ipv4_addr",
FT_IPv4, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_cause,
{"Cause", "gtpv2.cause",
FT_UINT8, BASE_DEC|BASE_EXT_STRING, &gtpv2_cause_vals_ext, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_cause_cs,
{"CS (Cause Source)","gtpv2.cs",
FT_BOOLEAN, 8, TFS(&gtpv2_cause_cs), 0x01,
NULL, HFILL}
},
{ &hf_gtpv2_cause_bce,
{"BCE (Bearer Context IE Error)","gtpv2.bce",
FT_BOOLEAN, 8, NULL, 0x02,
NULL, HFILL}
},
{ &hf_gtpv2_cause_pce,
{"PCE (PDN Connection IE Error)","gtpv2.pce",
FT_BOOLEAN, 8, NULL, 0x04,
NULL, HFILL}
},
{ &hf_gtpv2_cause_off_ie_t,
{"Type of the offending IE", "gtpv2.cause_off_ie_t",
FT_UINT8, BASE_DEC, VALS(gtpv2_element_type_vals), 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_rec,
{"Restart Counter", "gtpv2.rec",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
/*Start SRVCC Messages*/
{ &hf_gtpv2_stn_sr,
{"STN-SR", "gtpv2.stn_sr",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_len_trans_con,
{"Length of the Transparent Container", "gtpv2.len_trans_con",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_eksi,
{"eKSI", "gtpv2.eksi",
FT_UINT8, BASE_DEC, NULL, 0x07,
NULL, HFILL}
},
{ &hf_gtpv2_ck,
{"CK", "gtpv2.ck",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_ik,
{"IK", "gtpv2.ik",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
/*{ &hf_gtpv2_ck,
{"CK", "gtpv2.ck",
FT_UINT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_ik,
{"IK", "gtpv2.ik",
FT_UINT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},*/
{ &hf_gtpv2_len_ms_classmark2,
{"Length of Mobile Station Classmark2", "gtpv2.len_ms_classmark2",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_len_ms_classmark3,
{"Length of Mobile Station Classmark3", "gtpv2.len_ms_classmark3",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_len_supp_codec_list,
{"Length of Supported Codec List", "gtpv2.len_supp_codec_list",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_ksi,
{"KSI'cs", "gtpv2.ksi",
FT_UINT8, BASE_DEC, NULL, 0x0F,
NULL, HFILL}
},
/* { &hf_gtpv2_kc,
{"Kc'", "gtpv2.kc",
FT_UINT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},*/
{ &hf_gtpv2_cksn,
{"CKSN'", "gtpv2.cksn",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_srvcc_cause,
{"SRVCC Cause", "gtpv2.srvcc_cause",
FT_UINT8, BASE_DEC|BASE_EXT_STRING, &gtpv2_srvcc_cause_vals_ext, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_rnc_id,
{"RNC ID", "gtpv2.rnc_id",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_lac,
{ "Location Area Code (LAC)","gtpv2.lac",
FT_UINT16, BASE_HEX_DEC, NULL, 0x00,
NULL, HFILL }
},
{ &hf_gtpv2_sac,
{ "Service Area Code (SAC)","gtpv2.sac",
FT_UINT16, BASE_HEX_DEC, NULL, 0x00,
NULL, HFILL }
},
{ &hf_gtpv2_tgt_g_cell_id,
{"Cell ID", "gtpv2.tgt_g_cell_id",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_teid_c,
{"Tunnel Endpoint Identifier for Control Plane(TEID-C)", "gtpv2.teid_c",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_sv_sti,
{"STI (Session Transfer Indicator)", "gtpv2.sv_sti",
FT_BOOLEAN, 8, NULL, 0x04, NULL, HFILL}
},
{&hf_gtpv2_sv_ics,
{"ICS (IMS Centralized Service)", "gtpv2.sv_ics",
FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL}
},
{&hf_gtpv2_sv_emind,
{"EmInd(Emergency Indicator)", "gtpv2.sv_ics",
FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL}
},
/*End SRVCC Messages*/
{&hf_gtpv2_apn,
{"APN (Access Point Name)", "gtpv2.apn",
FT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_ambr_up,
{"AMBR Uplink (Aggregate Maximum Bit Rate for Uplink)", "gtpv2.ambr_up",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_ambr_down,
{"AMBR Downlink(Aggregate Maximum Bit Rate for Downlink)", "gtpv2.ambr_down",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_ebi,
{"EPS Bearer ID (EBI)", "gtpv2.ebi",
FT_UINT8, BASE_DEC, NULL, 0x0f,
NULL, HFILL}
},
{ &hf_gtpv2_ip_address_ipv4,
{"IP address IPv4", "gtpv2.ip_address_ipv4",
FT_IPv4, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_ip_address_ipv6,
{"IP address IPv6", "gtpv2.ip_address_ipv6",
FT_IPv6, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_mei,
{"MEI(Mobile Equipment Identity)", "gtpv2.mei",
FT_STRING, BASE_NONE, NULL, 0,
NULL, HFILL}
},
{ &hf_gtpv2_pdn_numbers_nsapi,
{"NSAPI", "gtpv2.pdn_numbers_nsapi",
FT_UINT8, BASE_DEC, NULL, 0x0f, NULL, HFILL}
},
{ &hf_gtpv2_p_tmsi,
{"Packet TMSI (P-TMSI)", "gtpv2.p_tmsi",
FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL}
},
{ &hf_gtpv2_p_tmsi_sig,
{"P-TMSI Signature", "gtpv2.p_tmsi_sig",
FT_UINT24, BASE_HEX, NULL, 0x0, NULL, HFILL}
},
{&hf_gtpv2_daf,
{"DAF (Dual Address Bearer Flag)", "gtpv2.daf",
FT_BOOLEAN, 8, NULL, 0x80, NULL, HFILL}
},
{&hf_gtpv2_dtf,
{"DTF (Direct Tunnel Flag)","gtpv2.dtf",
FT_BOOLEAN, 8, NULL, 0x40, NULL, HFILL}
},
{&hf_gtpv2_hi,
{"HI (Handover Indication)", "gtpv2.hi",
FT_BOOLEAN, 8, NULL, 0x20, NULL, HFILL}
},
{&hf_gtpv2_dfi,
{"DFI (Direct Forwarding Indication)", "gtpv2.dfi",
FT_BOOLEAN, 8, NULL, 0x10, NULL, HFILL}
},
{&hf_gtpv2_oi,
{"OI (Operation Indication)","gtpv2.oi",
FT_BOOLEAN, 8, NULL, 0x08, NULL, HFILL}
},
{&hf_gtpv2_isrsi,
{"ISRSI (Idle mode Signalling Reduction Supported Indication)", "gtpv2.isrsi",
FT_BOOLEAN, 8, NULL, 0x04, NULL, HFILL}
},
{&hf_gtpv2_israi,
{"ISRAI (Idle mode Signalling Reduction Activation Indication)", "gtpv2.israi",
FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL}
},
{&hf_gtpv2_sgwci,
{"SGWCI (SGW Change Indication)", "gtpv2.sgwci",
FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL}
},
{&hf_gtpv2_sqci,
{"SQCI (Subscribed QoS Change Indication", "gtpv2.sqci",
FT_BOOLEAN, 8, NULL, 0x80, NULL, HFILL}
},
{&hf_gtpv2_uimsi,
{"UIMSI (Unauthenticated IMSI)", "gtpv2.uimsi",
FT_BOOLEAN, 8, NULL, 0x40, NULL, HFILL}
},
{&hf_gtpv2_cfsi,
{"CFSI (Change F-TEID support indication)", "gtpv2.cfsi",
FT_BOOLEAN, 8, NULL, 0x20, NULL, HFILL}
},
{&hf_gtpv2_crsi,
{"CRSI (Change Reporting support indication):", "gtpv2.crsi",
FT_BOOLEAN, 8, NULL, 0x10, NULL, HFILL}
},
{&hf_gtpv2_ps,
{"PS (Piggybacking Supported).)", "gtpv2.ps",
FT_BOOLEAN, 8, NULL, 0x08, NULL, HFILL}
},
{&hf_gtpv2_pt,
{"PT (Protocol Type)", "gtpv2.pt",
FT_BOOLEAN, 8, NULL, 0x04, NULL, HFILL}
},
{&hf_gtpv2_si,
{"SI (Scope Indication)", "gtpv2.si",
FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL}
},
{&hf_gtpv2_msv,
{"MSV (MS Validated)", "gtpv2.msv",
FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL}
},
{&hf_gtpv2_ccrsi,
{"CCRSI (CSG Change Reporting support indication)", "gtpv2.ccrsi",
FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL}
},
{ &hf_gtpv2_pdn_type,
{"PDN Type", "gtpv2.pdn_type",
FT_UINT8, BASE_DEC, VALS(gtpv2_pdn_type_vals), 0x07,
NULL, HFILL}
},
{ &hf_gtpv2_tra_info,
{"Trace ID","gtpv2.tra_info",
FT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_tra_info_msc_momt_calls,
{"MO and MT calls","gtpv2.tra_info_msc_momt_calls",
FT_UINT8, BASE_DEC, NULL, 0x01,
"MSC Server", HFILL}
},
{ &hf_gtpv2_tra_info_msc_momt_sms,
{"MO and MT SMS","gtpv2.tra_info_msc_momt_sms",
FT_UINT8, BASE_DEC, NULL, 0x02,
"MSC Server", HFILL}
},
{ &hf_gtpv2_tra_info_msc_lu_imsi_ad,
{"LU, IMSI attach, IMSI detach","gtpv2.tra_info_msc_lu_imsi_ad",
FT_UINT8, BASE_DEC, NULL, 0x04,
"MSC Server", HFILL}
},
{ &hf_gtpv2_tra_info_msc_handovers,
{"Handovers","gtpv2.tra_info_msc_handovers",
FT_UINT8, BASE_DEC, NULL, 0x08,
"MSC Server", HFILL}
},
{ &hf_gtpv2_tra_info_msc_ss,
{"SS","gtpv2.tra_info_msc_ss",
FT_UINT8, BASE_DEC, NULL, 0x10,
"MSC Server", HFILL}
},
{ &hf_gtpv2_tra_info_mgw_context,
{"Context","gtpv2.tra_info_mgw_context",
FT_UINT8, BASE_DEC, NULL, 0x01,
"MGW", HFILL}
},
{ &hf_gtpv2_tra_info_sgsn_pdp_context,
{"PDP context","gtpv2.tra_info_sgsn_pdp_context",
FT_UINT8, BASE_DEC, NULL, 0x01,
"SGSN", HFILL}
},
{ &hf_gtpv2_tra_info_sgsn_momt_sms,
{"MO and MT SMS","gtpv2.tra_info_sgsn_momt_sms",
FT_UINT8, BASE_DEC, NULL, 0x02,
"SGSN", HFILL}
},
{ &hf_gtpv2_tra_info_sgsn_rau_gprs_ad,
{"RAU, GPRS attach, GPRS detach","gtpv2.tra_info_sgsn_rau_gprs_ad",
FT_UINT8, BASE_DEC, NULL, 0x04,
"SGSN", HFILL}
},
{ &hf_gtpv2_tra_info_sgsn_mbms,
{"MBMS Context","gtpv2.tra_into_sgsn_mbms",
FT_UINT8, BASE_DEC, NULL, 0x08,
"SGSN", HFILL}
},
{ &hf_gtpv2_tra_info_sgsn_reserved,
{"Reserved","gtpv2.",
FT_UINT8, BASE_DEC, NULL, 0x0,
"SGSN", HFILL}
},
{ &hf_gtpv2_tra_info_ggsn_pdp,
{"PDP Cpntext","gtpv2.tra_info_ggsn_pdp",
FT_UINT8, BASE_DEC, NULL, 0x01,
"GGSN", HFILL}
},
{ &hf_gtpv2_tra_info_ggsn_mbms,
{"MBMS Context","gtpv2.tra_info_ggsn_mbms",
FT_UINT8, BASE_DEC, NULL, 0x02,
"GGSN", HFILL}
},
{ &hf_gtpv2_tra_info_bm_sc,
{"MBMS Multicast service activation","gtpv2.tra_info_bm_sc",
FT_UINT8, BASE_DEC, NULL, 0x01,
"BM-SC", HFILL}
},
{ &hf_gtpv2_tra_info_mme_sgw_ss,
{"Session setup","gtpv2.tra_info_mme_sgw_ss",
FT_UINT8, BASE_DEC, NULL, 0x01,
"MME", HFILL}
},
{ &hf_gtpv2_tra_info_mme_sgw_sr,
{"Service Request","gtpv2.tra_info_mme_sgw_sr",
FT_UINT8, BASE_DEC, NULL, 0x02,
"MME", HFILL}
},
{ &hf_gtpv2_tra_info_mme_sgw_iataud,
{"Initial Attach, Tracking area update, Detach","gtpv2.tra_info_mme_sgw_iataud",
FT_UINT8, BASE_DEC, NULL, 0x04,
"MME", HFILL}
},
{ &hf_gtpv2_tra_info_lne_msc_s,
{"MSC-S","gtpv2.tra_info_lne_msc_s",
FT_UINT8, BASE_DEC, NULL, 0x01,
"List of NE Types", HFILL}
},
{ &hf_gtpv2_tra_info_lne_mgw,
{"MGW","gtpv2.tra_info_lne_mgw",
FT_UINT8, BASE_DEC, NULL, 0x02,
"List of NE Types", HFILL}
},
{ &hf_gtpv2_tra_info_lne_sgsn,
{"SGSN","gtpv2.tra_info_lne_sgsn",
FT_UINT8, BASE_DEC, NULL, 0x04,
"List of NE Types", HFILL}
},
{ &hf_gtpv2_tra_info_lne_ggsn,
{"GGSN","gtpv2.tra_info_lne_ggsn",
FT_UINT8, BASE_DEC, NULL, 0x08,
"List of NE Types", HFILL}
},
{ &hf_gtpv2_tra_info_lne_rnc,
{"RNC","gtpv2.tra_info_lne_rnc",
FT_UINT8, BASE_DEC, NULL, 0x10,
"List of NE Types", HFILL}
},
{ &hf_gtpv2_tra_info_lne_bm_sc,
{"BM-SC","gtpv2.tra_info_lne_bm_sc",
FT_UINT8, BASE_DEC, NULL, 0x20,
"List of NE Types", HFILL}
},
{ &hf_gtpv2_tra_info_lne_mme,
{"MME","gtpv2.tra_info_lne_mme",
FT_UINT8, BASE_DEC, NULL, 0x40,
"List of NE Types", HFILL}
},
{ &hf_gtpv2_tra_info_lne_sgw,
{"SGW","gtpv2.tra_info_lne_sgw",
FT_UINT8, BASE_DEC, NULL, 0x80,
"List of NE Types", HFILL}
},
{ &hf_gtpv2_tra_info_lne_pdn_gw,
{"PDN GW","gtpv2.tra_info_lne_pdn_gw",
FT_UINT8, BASE_DEC, NULL, 0x01,
"List of NE Types", HFILL}
},
{ &hf_gtpv2_tra_info_lne_enb,
{"eNB","gtpv2.tra_info_lne_enb",
FT_UINT8, BASE_DEC, NULL, 0x02,
"List of NE Types", HFILL}
},
{ &hf_gtpv2_tra_info_tdl,
{"Trace Depth Length","gtpv2.tra_info_tdl",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_tra_info_lmsc_a,
{"A","gtpv2.tra_info_lmsc_a",
FT_UINT8, BASE_DEC, NULL, 0x01,
"MSC Server", HFILL}
},
{ &hf_gtpv2_tra_info_lmsc_lu,
{"Iu","gtpv2.tra_info_lmsc_lu",
FT_UINT8, BASE_DEC, NULL, 0x02,
"MSC Server", HFILL}
},
{ &hf_gtpv2_tra_info_lmsc_mc,
{"Mc","gtpv2.tra_info_lmsc_mc",
FT_UINT8, BASE_DEC, NULL, 0x04,
"MSC Server", HFILL}
},
{ &hf_gtpv2_tra_info_lmsc_map_g,
{"MAP-G","gtpv2.tra_info_lmsc_map_g",
FT_UINT8, BASE_DEC, NULL, 0x08,
"MSC Server", HFILL}
},
{ &hf_gtpv2_tra_info_lmsc_map_b,
{"MAP-B","gtpv2.tra_info_lmsc_map_b",
FT_UINT8, BASE_DEC, NULL, 0x10,
"MSC Server", HFILL}
},
{ &hf_gtpv2_tra_info_lmsc_map_e,
{"MAP-E","gtpv2.tra_info_lmsc_map_e",
FT_UINT8, BASE_DEC, NULL, 0x20,
"MSC Server", HFILL}
},
{ &hf_gtpv2_tra_info_lmsc_map_f,
{"MAP-F","gtpv2.tra_info_lmsc_map_f",
FT_UINT8, BASE_DEC, NULL, 0x40,
"MSC Server", HFILL}
},
{ &hf_gtpv2_tra_info_lmsc_cap,
{"CAP","gtpv2.tra_info_lmsc_cap",
FT_UINT8, BASE_DEC, NULL, 0x80,
"MSC Server", HFILL}
},
{ &hf_gtpv2_tra_info_lmsc_map_d,
{"MAP-D","gtpv2.tra_info_lmsc_map_d",
FT_UINT8, BASE_DEC, NULL, 0x01,
"MSC Server", HFILL}
},
{ &hf_gtpv2_tra_info_lmsc_map_c,
{"MAP-C","gtpv2.tra_info_lmsc_map_c",
FT_UINT8, BASE_DEC, NULL, 0x02,
"MSC Server", HFILL}
},
{ &hf_gtpv2_tra_info_lmgw_mc,
{"Mc","gtpv2.tra_info_lmgw_mc",
FT_UINT8, BASE_DEC, NULL, 0x01,
"MGW", HFILL}
},
{ &hf_gtpv2_tra_info_lmgw_nb_up,
{"Nb-UP","gtpv2.tra_info_lmgw_nb_up",
FT_UINT8, BASE_DEC, NULL, 0x2,
"MGW", HFILL}
},
{ &hf_gtpv2_tra_info_lmgw_lu_up,
{"Iu-UP","gtpv2.tra_info_lmgw_lu_up",
FT_UINT8, BASE_DEC, NULL, 0x04,
"MGW", HFILL}
},
{ &hf_gtpv2_tra_info_lsgsn_gb,
{"Gb","gtpv2.tra_info_lsgsn_gb",
FT_UINT8, BASE_DEC, NULL, 0x01,
"SGSN", HFILL}
},
{ &hf_gtpv2_tra_info_lsgsn_lu,
{"Iu","gtpv2.tra_info_lsgsn_lu",
FT_UINT8, BASE_DEC, NULL, 0x02,
"SGSN", HFILL}
},
{ &hf_gtpv2_tra_info_lsgsn_gn,
{"Gn","gtpv2.tra_info_lsgsn_gn",
FT_UINT8, BASE_DEC, NULL, 0x04,
"SGSN", HFILL}
},
{ &hf_gtpv2_tra_info_lsgsn_map_gr,
{"MAP-Gr","gtpv2.tra_info_lsgsn_map_gr",
FT_UINT8, BASE_DEC, NULL, 0x08,
"SGSN", HFILL}
},
{ &hf_gtpv2_tra_info_lsgsn_map_gd,
{"MAP-Gd","gtpv2.tra_info_lsgsn_map_gd",
FT_UINT8, BASE_DEC, NULL, 0x10,
"SGSN", HFILL}
},
{ &hf_gtpv2_tra_info_lsgsn_map_gf,
{"MAP-Gf","gtpv2.tra_info_lsgsn_map_gf",
FT_UINT8, BASE_DEC, NULL, 0x20,
"SGSN", HFILL}
},
{ &hf_gtpv2_tra_info_lsgsn_gs,
{"Gs","gtpv2.tra_info_lsgsn_gs",
FT_UINT8, BASE_DEC, NULL, 0x40,
"SGSN", HFILL}
},
{ &hf_gtpv2_tra_info_lsgsn_ge,
{"Ge","gtpv2.tra_info_lsgsn_ge",
FT_UINT8, BASE_DEC, NULL, 0x80,
"SGSN", HFILL}
},
{ &hf_gtpv2_tra_info_lggsn_gn,
{"Gn","gtpv2.tra_info_lggsn_gn",
FT_UINT8, BASE_DEC, NULL, 0x01,
"GGSN", HFILL}
},
{ &hf_gtpv2_tra_info_lggsn_gi,
{"Gi","gtpv2.tra_info_lggsn_gi",
FT_UINT8, BASE_DEC, NULL, 0x02,
"GGSN", HFILL}
},
{ &hf_gtpv2_tra_info_lggsn_gmb,
{"Gmb","gtpv2.tra_info_lggsn_gmb",
FT_UINT8, BASE_DEC, NULL, 0x04,
"GGSN", HFILL}
},
{ &hf_gtpv2_tra_info_lrnc_lu,
{"Iu","gtpv2.tra_info_lrnc_lu",
FT_UINT8, BASE_DEC, NULL, 0x01,
"RNC", HFILL}
},
{ &hf_gtpv2_tra_info_lrnc_lur,
{"Iur","gtpv2.tra_info_lrnc_lur",
FT_UINT8, BASE_DEC, NULL, 0x02,
"RNC", HFILL}
},
{ &hf_gtpv2_tra_info_lrnc_lub,
{"Iub","gtpv2.tra_info_lrnc_lub",
FT_UINT8, BASE_DEC, NULL, 0x04,
"RNC", HFILL}
},
{ &hf_gtpv2_tra_info_lrnc_uu,
{"Uu","gtpv2.tra_info_lrnc_uu",
FT_UINT8, BASE_DEC, NULL, 0x08,
"RNC", HFILL}
},
{ &hf_gtpv2_tra_info_lbm_sc_gmb,
{"Gmb","gtpv2.tra_info_lbm_sc_gmb",
FT_UINT8, BASE_DEC, NULL, 0x01,
"BM-SC", HFILL}
},
{ &hf_gtpv2_tra_info_lmme_s1_mme,
{"S1-MME","gtpv2.tra_info_lmme_s1_mme",
FT_UINT8, BASE_DEC, NULL, 0x01,
"MME", HFILL}
},
{ &hf_gtpv2_tra_info_lmme_s3,
{"S3","gtpv2.tra_info_lmme_s3",
FT_UINT8, BASE_DEC, NULL, 0x02,
"MME", HFILL}
},
{ &hf_gtpv2_tra_info_lmme_s6a,
{"S6a","gtpv2.tra_info_lmme_s6a",
FT_UINT8, BASE_DEC, NULL, 0x04,
"MME", HFILL}
},
{ &hf_gtpv2_tra_info_lmme_s10,
{"S10","gtpv2.tra_info_lmme_s10",
FT_UINT8, BASE_DEC, NULL, 0x08,
"MME", HFILL}
},
{ &hf_gtpv2_tra_info_lmme_s11,
{"S11","gtpv2.tra_info_lmme_s11",
FT_UINT8, BASE_DEC, NULL, 0x10,
"MME", HFILL}
},
{ &hf_gtpv2_tra_info_lsgw_s4,
{"S4","gtpv2.tra_info_lsgw_s4",
FT_UINT8, BASE_DEC, NULL, 0x01,
"SGW", HFILL}
},
{ &hf_gtpv2_tra_info_lsgw_s5,
{"S5","gtpv2.tra_info_lsgw_s5",
FT_UINT8, BASE_DEC, NULL, 0x02,
"SGW", HFILL}
},
{ &hf_gtpv2_tra_info_lsgw_s8b,
{"S8b","gtpv2.tra_info_lsgw_s8b",
FT_UINT8, BASE_DEC, NULL, 0x04,
"SGW", HFILL}
},
{ &hf_gtpv2_tra_info_lsgw_s11,
{"S11","gtpv2.tra_info_lsgw_s11",
FT_UINT8, BASE_DEC, NULL, 0x08,
"SGW", HFILL}
},
{ &hf_gtpv2_tra_info_lpdn_gw_s2a,
{"S2a","gtpv2.tra_info_lpdn_gw_s2a",
FT_UINT8, BASE_DEC, NULL, 0x01,
"PDN GW", HFILL}
},
{ &hf_gtpv2_tra_info_lpdn_gw_s2b,
{"S2b","gtpv2.tra_info_lpdn_gw_s2b",
FT_UINT8, BASE_DEC, NULL, 0x02,
"PDN GW", HFILL}
},
{ &hf_gtpv2_tra_info_lpdn_gw_s2c,
{"S2c","gtpv2.tra_info_lpdn_gw_s2c",
FT_UINT8, BASE_DEC, NULL, 0x04,
"PDN GW", HFILL}
},
{ &hf_gtpv2_tra_info_lpdn_gw_s5,
{"S5","gtpv2.tra_info_lpdn_gw_s5",
FT_UINT8, BASE_DEC, NULL, 0x08,
"PDN GW", HFILL}
},
{ &hf_gtpv2_tra_info_lpdn_gw_s6c,
{"S6c","gtpv2.tra_info_lpdn_gw_s6c",
FT_UINT8, BASE_DEC, NULL, 0x10,
"PDN GW", HFILL}
},
{ &hf_gtpv2_tra_info_lpdn_gw_gx,
{"Gx","gtpv2.tra_info_lpdn_gw_gx",
FT_UINT8, BASE_DEC, NULL, 0x20,
"PDN GW", HFILL}
},
{ &hf_gtpv2_tra_info_lpdn_gw_s8b,
{"S8b","gtpv2.tra_info_lpdn_gw_s8b",
FT_UINT8, BASE_DEC, NULL, 0x40,
"PDN GW", HFILL}
},
{ &hf_gtpv2_tra_info_lpdn_gw_sgi,
{"SGi","gtpv2.tra_info_lpdn_gw_sgi",
FT_UINT8, BASE_DEC, NULL, 0x80,
"PDN GW", HFILL}
},
{ &hf_gtpv2_tra_info_lenb_s1_mme,
{"S1-MME","gtpv2.tra_info_lenb_s1_mme",
FT_UINT8, BASE_DEC, NULL, 0x01,
"eNB", HFILL}
},
{ &hf_gtpv2_tra_info_lenb_x2,
{"X2","gtpv2.tra_info_lenb_x2",
FT_UINT8, BASE_DEC, NULL, 0x02,
"eNB", HFILL}
},
{ &hf_gtpv2_tra_info_lenb_uu,
{"Uu","gtpv2.tra_info_lenb_uu",
FT_UINT8, BASE_DEC, NULL, 0x04,
"eNB", HFILL}
},
{ &hf_gtpv2_pdn_ipv4,
{"PDN Address and Prefix(IPv4)", "gtpv2.pdn_addr_and_prefix.ipv4",
FT_IPv4, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_pdn_ipv6_len,
{"IPv6 Prefix Length", "gtpv2.pdn_ipv6_len",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_pdn_ipv6,
{"PDN Address and Prefix(IPv6)", "gtpv2.pdn_addr_and_prefix.ipv6",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_bearer_qos_pvi,
{"PVI (Pre-emption Vulnerability)", "gtpv2.bearer_qos_pvi",
FT_BOOLEAN, 8, NULL, 0x01,
NULL, HFILL}
},
{&hf_gtpv2_bearer_qos_pl,
{"PL (Priority Level)", "gtpv2.bearer_qos_pl",
FT_UINT8, BASE_DEC, NULL, 0x3c,
NULL, HFILL}
},
{&hf_gtpv2_bearer_qos_pci,
{"PCI (Pre-emption Capability)", "gtpv2.bearer_qos_pci",
FT_BOOLEAN, 8, NULL, 0x40,
NULL, HFILL}
},
{&hf_gtpv2_bearer_qos_label_qci,
{"Label (QCI)", "gtpv2.bearer_qos_label_qci",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_bearer_qos_mbr_up,
{"Maximum Bit Rate For Uplink", "gtpv2.bearer_qos_mbr_up",
FT_UINT64, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_bearer_qos_mbr_down,
{"Maximum Bit Rate For Downlink", "gtpv2.bearer_qos_mbr_down",
FT_UINT64, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_bearer_qos_gbr_up,
{"Guaranteed Bit Rate For Uplink", "gtpv2.bearer_qos_gbr_up",
FT_UINT64, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_bearer_qos_gbr_down,
{"Guaranteed Bit Rate For Downlink", "gtpv2.bearer_qos_gbr_down",
FT_UINT64, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_flow_qos_label_qci,
{"Label (QCI)", "gtpv2.flow_qos_label_qci",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_flow_qos_mbr_up,
{"Maximum Bit Rate For Uplink", "gtpv2.flow_qos_mbr_up",
FT_UINT64, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_flow_qos_mbr_down,
{"Maximum Bit Rate For Downlink", "gtpv2.flow_qos_mbr_down",
FT_UINT64, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_flow_qos_gbr_up,
{"Guaranteed Bit Rate For Uplink", "gtpv2.flow_qos_gbr_up",
FT_UINT64, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_flow_qos_gbr_down,
{"Guaranteed Bit Rate For Downlink", "gtpv2.flow_qos_gbr_down",
FT_UINT64, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_rat_type,
{"RAT Type", "gtpv2.rat_type",
FT_UINT8, BASE_DEC|BASE_EXT_STRING, &gtpv2_rat_type_vals_ext, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_uli_ecgi_flg,
{"ECGI Present Flag", "gtpv2.uli_ecgi_flg",
FT_BOOLEAN, 8, NULL, GTPv2_ULI_ECGI_MASK,
NULL, HFILL}
},
{ &hf_gtpv2_uli_lai_flg,
{"LAI Present Flag", "gtpv2.uli_lai_flg",
FT_BOOLEAN, 8, NULL, GTPv2_ULI_LAI_MASK,
NULL, HFILL}
},
{ &hf_gtpv2_uli_tai_flg,
{"TAI Present Flag", "gtpv2.uli_tai_flg",
FT_BOOLEAN, 8, NULL, GTPv2_ULI_TAI_MASK,
NULL, HFILL}
},
{ &hf_gtpv2_uli_rai_flg,
{"RAI Present Flag", "gtpv2.uli_rai_flg",
FT_BOOLEAN, 8, NULL, GTPv2_ULI_RAI_MASK,
NULL, HFILL}
},
{ &hf_gtpv2_uli_sai_flg,
{"SAI Present Flag", "gtpv2.uli_sai_flg",
FT_BOOLEAN, 8, NULL, GTPv2_ULI_SAI_MASK,
NULL, HFILL}
},
{ &hf_gtpv2_uli_cgi_flg,
{"CGI Present Flag", "gtpv2.uli_cgi_flg",
FT_BOOLEAN, 8, NULL, GTPv2_ULI_CGI_MASK,
NULL, HFILL}
},
{ &hf_gtpv2_glt,
{"Geographic Location Type", "gtpv2.glt",
FT_UINT8, BASE_DEC, VALS(geographic_location_type_vals), 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_uli_cgi_lac,
{"Location Area Code", "gtpv2.uli_cgi_lac",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_uli_cgi_ci,
{"Cell Identity", "gtpv2.uli_cgi_ci",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_uli_sai_lac,
{"Location Area Code", "gtpv2.uli_sai_lac",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_uli_sai_sac,
{"Service Area Code", "gtpv2.uli_sai_sac",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_uli_rai_lac,
{"Location Area Code", "gtpv2.uli_rai_lac",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_uli_rai_rac,
{"Routing Area Code", "gtpv2.uli_rai_rac",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_uli_tai_tac,
{"Tracking Area Code", "gtpv2.uli_tai_tac",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_uli_ecgi_eci,
{"ECI (E-UTRAN Cell Identifier)", "gtpv2.uli_ecgi_eci",
FT_UINT32, BASE_HEX, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_uli_lai_lac,
{"Location Area Code (LAC)", "gtpv2.uli_lai_lac",
FT_UINT16, BASE_HEX, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_uli_ecgi_eci_spare,
{"Spare", "gtpv2.uli_ecgi_eci_spare",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_nsapi,
{"NSAPI", "gtpv2.nsapi",
FT_UINT8, BASE_DEC, NULL, 0x0f,
NULL, HFILL}
},
{&hf_gtpv2_f_teid_v4,
{"V4", "gtpv2.f_teid_v4",
FT_BOOLEAN, 8, TFS(&gtpv2_f_teid_v4_vals), 0x80,
NULL, HFILL}
},
{&hf_gtpv2_f_teid_v6,
{"V6", "gtpv2.f_teid_v6",
FT_BOOLEAN, 8, TFS(&gtpv2_f_teid_v6_vals), 0x40,
NULL, HFILL}
},
{&hf_gtpv2_f_teid_interface_type,
{"Interface Type", "gtpv2.f_teid_interface_type",
FT_UINT8, BASE_DEC|BASE_EXT_STRING, &gtpv2_f_teid_interface_type_vals_ext, 0x1f,
NULL , HFILL}
},
{&hf_gtpv2_f_teid_gre_key,
{"TEID/GRE Key", "gtpv2.f_teid_gre_key",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL , HFILL}
},
{ &hf_gtpv2_f_teid_ipv4,
{"F-TEID IPv4", "gtpv2.f_teid_ipv4",
FT_IPv4, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_f_teid_ipv6,
{"F-TEID IPv6", "gtpv2.f_teid_ipv6",
FT_IPv6, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_tmsi,
{"TMSI", "gtpv2.tmsi",
FT_UINT32, BASE_HEX, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_hsgw_addr_f_len,
{"HSGW Address for forwarding Length", "gtpv2.hsgw_addr_f_len",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_hsgw_addr_ipv4,
{"HSGW Address for forwarding", "gtpv2.hsgw_addr_ipv4",
FT_IPv4, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_hsgw_addr_ipv6,
{"HSGW Address for forwarding", "gtpv2.hsgw_addr_ipv6",
FT_IPv6, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_gre_key,
{"GRE Key", "gtpv2.gre_key",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL , HFILL}
},
{ &hf_gtpv2_sgw_addr_ipv4,
{"Serving GW Address", "gtpv2.sgw_addr_ipv4",
FT_IPv4, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_sgw_addr_ipv6,
{"Serving GW Address", "gtpv2.sgw_addr_ipv6",
FT_IPv6, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_sgw_s1u_teid,
{"Serving GW S1-U TEID", "gtpv2.sgw_s1u_teid",
FT_UINT32, BASE_HEX, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_delay_value,
{"Delay Value (In integer multiples of 50 milliseconds or zero)", "gtpv2.delay_value",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_charging_id,
{"Charging id", "gtpv2.charging_id",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_charging_characteristic,
{"Charging Characteristic", "gtpv2.charging_characteristic",
FT_UINT16, BASE_HEX, NULL, 0xffff,
NULL, HFILL}
},
{&hf_gtpv2_bearer_flag_ppc,
{"PPC (Prohibit Payload Compression)", "gtpv2.bearer_flag.ppc",
FT_BOOLEAN, 8, NULL, 0x01,
NULL, HFILL}
},
{&hf_gtpv2_bearer_flag_vb,
{"VB (Voice Bearer)", "gtpv2.bearer_flag.vb",
FT_BOOLEAN, 8, NULL, 0x02,
NULL, HFILL}
},
{&hf_gtpv2_pti,
{"Procedure Transaction Id", "gtpv2.pti",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
/* MM Context */
{ &hf_gtpv2_mm_context_sm,
{"Security Mode", "gtpv2.mm_context_sm",
FT_UINT8, BASE_DEC, VALS(gtpv2_mm_context_security_mode), 0xe0,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_nhi,
{"NHI(Next Hop Indicator)", "gtpv2.mm_context_nhi",
FT_BOOLEAN, 8, TFS(&gtpv2_nhi_vals), 0x10,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_drxi,
{"DRXI", "gtpv2.mm_context_drxi",
FT_UINT8, BASE_DEC, NULL, 0x08,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_cksn,
{"CKSN", "gtpv2.mm_context_cksn",
FT_UINT8, BASE_DEC, NULL, 0x07,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_cksn_ksi,
{"CKSN/KSI", "gtpv2.mm_context_cksn_ksi",
FT_UINT8, BASE_DEC, NULL, 0x07,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_ksi_a,
{"KSI_asme", "gtpv2.mm_context_ksi_a",
FT_UINT8, BASE_DEC, NULL, 0x07,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_nr_tri,
{"Number of Triplet", "gtpv2.mm_context_nr_tri",
FT_UINT8, BASE_DEC, NULL, 0xe0,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_unipa,
{"Used NAS integrity protection algorithm", "gtpv2.mm_context_unipa",
FT_UINT8, BASE_DEC, VALS(gtpv2_mm_context_unipa_vals), 0x70,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_unc,
{"Used NAS Cipher", "gtpv2.mm_context_unc",
FT_UINT8, BASE_DEC, VALS(gtpv2_mm_context_unc_vals), 0x0f,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_nas_dl_cnt,
{"NAS Downlink Count", "gtpv2.mm_context_nas_dl_cnt",
FT_UINT24, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_nas_ul_cnt,
{"NAS Uplink Count", "gtpv2.mm_context_nas_ul_cnt",
FT_UINT24, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_ksi,
{"KSI", "gtpv2.mm_context_ksi",
FT_UINT8, BASE_DEC, NULL, 0x07,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_nr_qui,
{"Number of Quintuplets", "gtpv2.mm_context_nr_qui",
FT_UINT8, BASE_DEC, NULL, 0xe0,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_nr_qua,
{"Number of Quadruplet", "gtpv2.mm_context_nr_qua",
FT_UINT8, BASE_DEC, NULL, 0x1c,
NULL, HFILL}
},
{&hf_gtpv2_ue_time_zone_dst,
{"Daylight Saving Time","gtpv2.ue_time_zone_dst",
FT_UINT8, BASE_DEC, VALS(gtpv2_ue_time_zone_dst_vals),0x03,
NULL, HFILL}
},
{ &hf_gtpv2_fq_csid_type,
{"Node-ID Type", "gtpv2.fq_csid_type",
FT_UINT8, BASE_DEC, NULL, 0xf0,
NULL, HFILL}
},
{ &hf_gtpv2_fq_csid_nr,
{"Number of CSIDs", "gtpv2.fq_csid_nr",
FT_UINT8, BASE_DEC, NULL, 0x0f,
NULL, HFILL}
},
{ &hf_gtpv2_fq_csid_ipv4,
{"Node-ID (IPv4)", "gtpv2.fq_csid_ipv4",
FT_IPv4, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_fq_csid_ipv6,
{"Node-ID (IPv6)", "gtpv2.fq_csid_ipv6",
FT_IPv6, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_fq_csid_id,
{"CSID", "gtpv2.fq_csid_id",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_complete_req_msg_type,
{"Complete Request Message Type","gtpv2.complete_req_msg_type",
FT_UINT8, BASE_DEC, VALS(gtpv2_complete_req_msg_type_vals),0x0,
NULL, HFILL}
},
{&hf_gtpv2_mme_grp_id,
{"MME Group ID","gtpv2.mme_grp_id",
FT_UINT16, BASE_DEC, NULL,0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mme_code,
{"MME Code","gtpv2.mme_code",
FT_UINT8, BASE_DEC, NULL,0x0,
NULL, HFILL}
},
{ &hf_gtpv2_m_tmsi,
{"M-TMSI","gtpv2.m_tmsi",
FT_BYTES, BASE_NONE, NULL,0x0,
NULL, HFILL}
},
{ &hf_gtpv2_container_type,
{"Container Type","gtpv2.container_type",
FT_UINT8, BASE_DEC, VALS(gtpv2_container_type_vals),0x0f,
NULL, HFILL}
},
{ &hf_gtpv2_cause_type,
{"Cause Type","gtpv2.cause_type",
FT_UINT8, BASE_DEC|BASE_EXT_STRING, &gtpv2_cause_type_vals_ext,0x0f,
NULL, HFILL}
},
{ &hf_gtpv2_CauseRadioNetwork,
{"Radio Network Layer Cause","gtpv2.CauseRadioNetwork",
FT_UINT8, BASE_DEC, VALS(s1ap_CauseRadioNetwork_vals),0x0,
NULL, HFILL}
},
{ &hf_gtpv2_CauseTransport,
{"Transport Layer Cause","gtpv2.CauseTransport",
FT_UINT8, BASE_DEC, VALS(s1ap_CauseTransport_vals),0x0,
NULL, HFILL}
},
{ &hf_gtpv2_CauseNas,
{"NAS Cause","gtpv2.CauseNas",
FT_UINT8, BASE_DEC, VALS(s1ap_CauseNas_vals),0x0,
NULL, HFILL}
},
{ &hf_gtpv2_CauseMisc,
{"Miscellaneous Cause","gtpv2.CauseMisc",
FT_UINT8, BASE_DEC, VALS(s1ap_CauseMisc_vals),0x0,
NULL, HFILL}
},
{ &hf_gtpv2_target_type,
{"Target Type","gtpv2.target_type",
FT_UINT8, BASE_DEC|BASE_EXT_STRING, &gtpv2_target_type_vals_ext,0x0,
NULL, HFILL}
},
{&hf_gtpv2_macro_enodeb_id,
{"Macro eNodeB ID","gtpv2.macro_enodeb_id",
FT_UINT24, BASE_HEX, NULL,0x0fffff,
NULL, HFILL}
},
{ &hf_gtpv2_CauseProtocol,
{"Protocol Cause","gtpv2.CauseProtocol",
FT_UINT8, BASE_DEC, VALS(s1ap_CauseProtocol_vals),0x0,
NULL, HFILL}
},
{&hf_gtpv2_apn_rest,
{"APN Restriction", "gtpv2.apn_rest",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_selec_mode,
{"Selection Mode","gtpv2.selec_mode",
FT_UINT8, BASE_DEC, VALS(gtpv2_selec_mode_vals),0x03,
NULL, HFILL}
},
{ &hf_gtpv2_source_type,
{"Source Type", "gtpv2.source_type",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_bearer_control_mode,
{"Bearer Control Mode","gtpv2.bearer_control_mode",
FT_UINT8, BASE_DEC, VALS(gtpv2_bearer_control_mode_vals),0x0,
NULL, HFILL}
},
{ &hf_gtpv2_cng_rep_act,
{"Change Reporting Action", "gtpv2.cng_rep_act",
FT_UINT8, BASE_DEC, VALS(gtpv2_cng_rep_act_vals), 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_node_type,
{"Node Type", "gtpv2.node_type",
FT_UINT8, BASE_DEC, VALS(gtpv2_node_type_vals), 0x0,
NULL, HFILL}
},
{&hf_gtpv2_fqdn,
{"FQDN", "gtpv2.fqdn",
FT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_enterprise_id,
{"Enterprise ID", "gtpv2.enterprise_id",
FT_UINT16, BASE_DEC|BASE_EXT_STRING, &sminmpec_values_ext, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_address_digits,
{ "Address digits", "gtpv2.address_digits",
FT_STRING, BASE_NONE, NULL, 0,
NULL, HFILL }
},
{ &hf_gtpv2_ti,
{"Transaction Identifier", "gtpv2.ti",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
};
static gint *ett_gtpv2_array[] = {
&ett_gtpv2,
&ett_gtpv2_flags,
&ett_gtpv2_ie,
&ett_gtpv2_uli_flags,
&ett_gtpv2_uli_field,
&ett_gtpv2_bearer_ctx,
&ett_gtpv2_PDN_conn,
&ett_gtpv2_mm_context_flag,
&ett_gtpv2_pdn_numbers_nsapi,
&ett_gtpv2_tra_info_trigg,
&ett_gtpv2_tra_info_trigg_msc_server,
&ett_gtpv2_tra_info_trigg_mgw,
&ett_gtpv2_tra_info_trigg_sgsn,
&ett_gtpv2_tra_info_trigg_ggsn,
&ett_gtpv2_tra_info_trigg_bm_sc,
&ett_gtpv2_tra_info_trigg_sgw_mme,
&ett_gtpv2_tra_info_interfaces,
&ett_gtpv2_tra_info_interfaces_imsc_server,
&ett_gtpv2_tra_info_interfaces_lmgw,
&ett_gtpv2_tra_info_interfaces_lsgsn,
&ett_gtpv2_tra_info_interfaces_lggsn,
&ett_gtpv2_tra_info_interfaces_lrnc,
&ett_gtpv2_tra_info_interfaces_lbm_sc,
&ett_gtpv2_tra_info_interfaces_lmme,
&ett_gtpv2_tra_info_interfaces_lsgw,
&ett_gtpv2_tra_info_interfaces_lpdn_gw,
&ett_gtpv2_tra_info_interfaces_lpdn_lenb,
&ett_gtpv2_tra_info_ne_types,
&ett_gtpv2_rai,
&ett_gtpv2_stn_sr,
&ett_gtpv2_ms_mark,
&ett_gtpv2_supp_codec_list,
};
proto_gtpv2 = proto_register_protocol("GPRS Tunneling Protocol V2", "GTPv2", "gtpv2");
proto_register_field_array(proto_gtpv2, hf_gtpv2, array_length(hf_gtpv2));
proto_register_subtree_array(ett_gtpv2_array, array_length(ett_gtpv2_array));
/* AVP Code: 22 3GPP-User-Location-Info */
dissector_add_uint("diameter.3gpp", 22, new_create_dissector_handle(dissect_diameter_3gpp_uli, proto_gtpv2));
register_dissector("gtpv2", dissect_gtpv2, proto_gtpv2);
}
void
proto_reg_handoff_gtpv2(void)
{
nas_eps_handle = find_dissector("nas-eps");
}
/*
* Editor modelines
*
* Local Variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* ex: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
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