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wireshark/epan/dissectors/packet-gtpv2.c

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/* packet-gtpv2.c
*
* Routines for GTPv2 dissection
* Copyright 2009 - 2015, Anders Broman <anders.broman [at] ericsson.com>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
* Ref: 3GPP TS 29.274 version 11.1.0 Release 11 ETSI TS 129 274 V8.1.1 (2009-04)
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/conversation.h>
#include <epan/to_str.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"
#include "packet-bssgp.h"
#include "packet-ntp.h"
#include "packet-gtpv2.h"
#include "packet-diameter.h"
void proto_register_gtpv2(void);
void proto_reg_handoff_gtpv2(void);
static dissector_handle_t nas_eps_handle;
static dissector_table_t gtpv2_priv_ext_dissector_table;
/*GTPv2 Message->GTP Header(SB)*/
static int proto_gtpv2 = -1;
static int hf_gtpv2_response_in = -1;
static int hf_gtpv2_response_to = -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_rac = -1;
static int hf_gtpv2_rnc_id = -1;
static int hf_gtpv2_ext_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_retloc = -1;
static int hf_gtpv2_pbic = -1;
static int hf_gtpv2_srni = -1;
static int hf_gtpv2_s6af = -1;
static int hf_gtpv2_s4af = -1;
static int hf_gtpv2_mbmdt = -1;
static int hf_gtpv2_israu = -1;
static int hf_gtpv2_ccrsi = -1;
static int hf_gtpv2_cprai = -1;
static int hf_gtpv2_arrl = -1;
static int hf_gtpv2_ppof = -1;
static int hf_gtpv2_ppon_ppei = -1;
static int hf_gtpv2_ppsi = -1;
static int hf_gtpv2_csfbi = -1;
static int hf_gtpv2_clii = -1;
static int hf_gtpv2_cpsr = -1;
static int hf_gtpv2_pcri = -1;
static int hf_gtpv2_aosi = -1;
static int hf_gtpv2_aopi = -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_mmbr_ul = -1;
static int hf_gtpv2_mmbr_dl = -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_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_mme_sgw_ue_init_pdn_disc = -1;
static int hf_gtpv2_tra_info_mme_sgw_bearer_act_mod_del = -1;
static int hf_gtpv2_tra_info_mme_sgw_ho = -1;
static int hf_gtpv2_tra_info_sgw_pdn_con_creat = -1;
static int hf_gtpv2_tra_info_sgw_pdn_con_term = -1;
static int hf_gtpv2_tra_info_sgw_bearer_act_mod_del = -1;
static int hf_gtpv2_tra_info_pgw_pdn_con_creat = -1;
static int hf_gtpv2_tra_info_pgw_pdn_con_term = -1;
static int hf_gtpv2_tra_info_pgw_bearer_act_mod_del = -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_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_kasme = -1;
static int hf_gtpv2_mm_context_rand = -1;
static int hf_gtpv2_mm_context_xres_len = -1;
static int hf_gtpv2_mm_context_xres = -1;
static int hf_gtpv2_mm_context_autn_len = -1;
static int hf_gtpv2_mm_context_autn = -1;
static int hf_gtpv2_mm_context_drx = -1;
static int hf_gtpv2_mm_context_ue_net_cap_len = -1;
static int hf_gtpv2_mm_context_ms_net_cap_len = -1;
static int hf_gtpv2_mm_context_mei_len = -1;
static int hf_gtpv2_mm_context_vdp_len = -1;
static int hf_gtpv2_mm_context_higher_br_16mb_flg_len = -1;
static int hf_gtpv2_mm_context_higher_br_16mb_flg = -1;
static int hf_gtpv2_vdp_length = -1;
static int hf_gtpv2_uci_csg_id = -1;
static int hf_gtpv2_uci_csg_id_spare = -1;
static int hf_gtpv2_uci_access_mode = -1;
static int hf_gtpv2_uci_lcsg = -1;
static int hf_gtpv2_uci_csg_membership = -1;
static int hf_gtpv2_una = -1;
static int hf_gtpv2_gena = -1;
static int hf_gtpv2_gana = -1;
static int hf_gtpv2_ina = -1;
static int hf_gtpv2_ena = -1;
static int hf_gtpv2_hnna = -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_used_cipher = -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_uamb_ri = -1;
static int hf_gtpv2_mm_context_osci = -1;
static int hf_gtpv2_mm_context_samb_ri = -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_sai_lac= -1;
static int hf_gtpv2_sai_sac= -1;
static int hf_gtpv2_rai_lac= -1;
static int hf_gtpv2_rai_rac= -1;
static int hf_gtpv2_tai_tac= -1;
static int hf_gtpv2_ecgi_eci= -1;
static int hf_gtpv2_uli_lai_lac = -1;
static int hf_gtpv2_ecgi_eci_spare= -1;
static int hf_gtpv2_nsapi = -1;
static int hf_gtpv2_bearer_control_mode= -1;
static int hf_gtpv2_bss_container_phx = -1;
static int hf_gtpv2_bss_con_sapi_flg = -1;
static int hf_gtpv2_bss_con_rp_flg = -1;
static int hf_gtpv2_bss_con_pfi_flg = -1;
static int hf_gtpv2_bss_con_pfi = -1;
static int hf_gtpv2_bss_con_rp = -1;
static int hf_gtpv2_bss_con_sapi = -1;
static int hf_gtpv2_bss_con_xid_len = -1;
static int hf_gtpv2_bss_con_xid = -1;
static int hf_gtpv2_home_enodeb_id = -1;
static int hf_gtpv2_tac = -1;
/* MBMS */
static int hf_gtpv2_mbms_service_area_nr = -1;
static int hf_gtpv2_mbms_service_area_id = -1;
static int hf_gtpv2_mbms_session_id = -1;
static int hf_gtpv2_mbms_flow_id = -1;
static int hf_gtpv2_cteid = -1;
static int hf_gtpv2_ip_addr_type = -1;
static int hf_gtpv2_ip_addr_len = -1;
static int hf_gtpv2_mbms_ip_mc_dist_addrv4 = -1;
static int hf_gtpv2_mbms_ip_mc_dist_addrv6 = -1;
static int hf_gtpv2_mbms_ip_mc_src_addrv4 = -1;
static int hf_gtpv2_mbms_ip_mc_src_addrv6 = -1;
static int hf_gtpv2_mbms_hc_indicator = -1;
static int hf_gtpv2_mbms_dist_indication = -1;
static int hf_gtpv2_subscriber_rfsp = -1;
static int hf_gtpv2_rfsp_inuse = -1;
static int hf_gtpv2_mbms_service_id = -1;
static int hf_gtpv2_add_flags_for_srvcc_ics = -1;
static int hf_gtpv2_vsrvcc_flag = -1;
static int hf_gtpv2_abs_time_mbms_data = -1;
static int hf_gtpv2_henb_info_report_fti = -1;
static int hf_gtpv2_ip4cp_subnet_prefix_len = -1;
static int hf_gtpv2_ip4cp_ipv4 = -1;
static int hf_gtpv2_change_report_flags_sncr = -1;
static int hf_gtpv2_change_report_flags_tzcr = -1;
static int hf_gtpv2_action_indication_val = -1;
static int hf_gtpv2_uli_timestamp = -1;
static int hf_gtpv2_mbms_session_duration_days = -1;
static int hf_gtpv2_mbms_session_duration_secs = -1;
static int hf_gtpv2_node_features_prn = -1;
static int hf_gtpv2_node_features_mabr =-1;
static int hf_gtpv2_node_features_ntsr = -1;
static int hf_gtpv2_time_to_data_xfer = -1;
static int hf_gtpv2_arp_pvi = -1;
static int hf_gtpv2_arp_pl = -1;
static int hf_gtpv2_arp_pci = -1;
static int hf_gtpv2_timer_unit = -1;
static int hf_gtpv2_throttling_delay_unit = -1;
static int hf_gtpv2_throttling_delay_value = -1;
static int hf_gtpv2_timer_value = -1;
static int hf_gtpv2_lapi = -1;
static int hf_gtpv2_pres_rep_area_action = -1;
static int hf_gtpv2_pres_rep_area_id = -1;
static int hf_gtpv2_pres_rep_area_act_no_tai = -1;
static int hf_gtpv2_pres_rep_area_act_no_rai = -1;
static int hf_gtpv2_pres_rep_area_act_no_m_enodeb = -1;
static int hf_gtpv2_pres_rep_area_act_no_h_enodeb = -1;
static int hf_gtpv2_pres_rep_area_act_no_ecgi = -1;
static int hf_gtpv2_pres_rep_area_act_no_sai = -1;
static int hf_gtpv2_pres_rep_area_act_no_cgi = -1;
static int hf_gtpv2_ksi_ps = -1;
static int hf_gtpv2_ck_ps = -1;
static int hf_gtpv2_ik_ps = -1;
static int hf_gtpv2_kc_ps = -1;
static int hf_gtpv2_cksn_ps = -1;
/* Generated from convert_proto_tree_add_text.pl */
static int hf_gtpv2_downlink_subscribed_ue_ambr = -1;
static int hf_gtpv2_mm_context_sres = -1;
static int hf_gtpv2_iksrvcc = -1;
static int hf_gtpv2_nsapi08 = -1;
static int hf_gtpv2_voice_domain_and_ue_usage_setting = -1;
static int hf_gtpv2_upd_source_port_number = -1;
static int hf_gtpv2_uplink_used_ue_ambr = -1;
static int hf_gtpv2_tmsi_bytes = -1;
static int hf_gtpv2_dl_gtp_u_sequence_number = -1;
static int hf_gtpv2_mm_context_nh = -1;
static int hf_gtpv2_teid_c_spare = -1;
static int hf_gtpv2_uplink_subscribed_ue_ambr = -1;
static int hf_gtpv2_transparent_container = -1;
static int hf_gtpv2_packet_flow_id = -1;
static int hf_gtpv2_utran_srvcc_ik_cs = -1;
static int hf_gtpv2_downlink_used_ue_ambr = -1;
static int hf_gtpv2_hop_counter = -1;
static int hf_gtpv2_ul_gtp_u_sequence_number = -1;
static int hf_gtpv2_authentication_quadruplets = -1;
static int hf_gtpv2_utran_srvcc_kc = -1;
static int hf_gtpv2_spare_bytes = -1;
static int hf_gtpv2_metric = -1;
static int hf_gtpv2_throttling_factor = -1;
static int hf_gtpv2_relative_capacity = -1;
static int hf_gtpv2_apn_length = -1;
static int hf_gtpv2_sequence_number = -1;
static int hf_gtpv2_receive_n_pdu_number = -1;
static int hf_gtpv2_trace_id = -1;
static int hf_gtpv2_drx_parameter = -1;
static int hf_gtpv2_charging_characteristic_remaining_octets = -1;
static int hf_gtpv2_mm_context_ncc = -1;
static int hf_gtpv2_proprietary_value = -1;
static int hf_gtpv2_mobile_station_classmark2 = -1;
static int hf_gtpv2_rrc_container = -1;
static int hf_gtpv2_send_n_pdu_number = -1;
static int hf_gtpv2_mobile_station_classmark3 = -1;
static int hf_gtpv2_eps_bearer_id_number = -1;
static int hf_gtpv2_geographic_location = -1;
static int hf_gtpv2_cn_id = -1;
static int hf_gtpv2_utran_srvcc_ck_cs = -1;
static int hf_gtpv2_authentication_quintuplets = -1;
static int hf_gtpv2_serving_gw_address_length = -1;
static int hf_gtpv2_supported_codec_list = -1;
static int hf_gtpv2_cksrvcc = -1;
static int hf_gtpv2_mm_context_kc = -1;
static int hf_gtpv2_dl_pdcp_sequence_number = -1;
static int hf_gtpv2_ul_pdcp_sequence_number = -1;
static int hf_gtpv2_fq_csid_node_id = -1;
static int hf_gtpv2_fq_csid_mcc_mnc = -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_overload_control_information = -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_trigg_sgw = -1;
static gint ett_gtpv2_tra_info_trigg_pgw = -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;
static gint ett_gtpv2_bss_con = -1;
static gint ett_gtpv2_utran_con = -1;
static gint ett_gtpv2_eutran_con = -1;
static gint ett_gtpv2_mm_context_auth_qua = -1;
static gint ett_gtpv2_mm_context_auth_qui = -1;
static gint ett_gtpv2_mm_context_auth_tri = -1;
static gint ett_gtpv2_mm_context_net_cap = -1;
static gint ett_gtpv2_ms_network_capability = -1;
static gint ett_gtpv2_vd_pref = -1;
static gint ett_gtpv2_access_rest_data = -1;
static gint ett_gtpv2_qua = -1;
static gint ett_gtpv2_qui = -1;
static gint ett_gtpv2_preaa_tais = -1;
static gint ett_gtpv2_preaa_menbs = -1;
static gint ett_gtpv2_preaa_henbs = -1;
static gint ett_gtpv2_preaa_ecgis = -1;
static gint ett_gtpv2_preaa_rais = -1;
static gint ett_gtpv2_preaa_sais = -1;
static gint ett_gtpv2_preaa_cgis = -1;
static gint ett_gtpv2_load_control_inf = -1;
static expert_field ei_gtpv2_ie_data_not_dissected = EI_INIT;
static expert_field ei_gtpv2_ie_len_invalid = EI_INIT;
static expert_field ei_gtpv2_source_type_unknown = EI_INIT;
static expert_field ei_gtpv2_fq_csid_type_bad = EI_INIT;
static expert_field ei_gtpv2_mbms_session_duration_days = EI_INIT;
static expert_field ei_gtpv2_mbms_session_duration_secs = EI_INIT;
static expert_field ei_gtpv2_ie = EI_INIT;
/* 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_SRVCC_PS_TO_CS_REQUEST 25
#define GTPV2_CREATE_SESSION_REQUEST 32
#define GTPV2_CREATE_SESSION_RESPONSE 33
#define GTPV2_MODIFY_BEARER_REQUEST 34
#define GTPV2_MODIFY_BEARER_RESPONSE 35
#define GTPV2_DELETE_SESSION_REQUEST 36
#define GTPV2_DELETE_SESSION_RESPONSE 37
#define GTPV2_BEARER_RESOURCE_COMMAND 68
#define GTPV2_CREATE_BEARER_REQUEST 95
#define GTPV2_CREATE_BEARER_RESPONSE 96
#define GTPV2_UPDATE_BEARER_REQUEST 97
#define GTPV2_UPDATE_BEARER_RESPONSE 98
#define GTPV2_DELETE_BEARER_REQUEST 99
#define GTPV2_DELETE_BEARER_RESPONSE 100
#define GTPV2_CONTEXT_RESPONSE 131
#define GTPV2_FORWARD_RELOCATION_REQ 133
#define GTPV2_FORWARD_RELOCATION_RESP 134
#define GTPV2_FORWARD_CTX_NOTIFICATION 137
#define GTPV2_RAN_INFORMATION_RELAY 152
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, "SRVCC CS to PS Request"},
/*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"},
{178, "Reserved. Allocated in earlier version of the specification."},
{179, "PGW Restart Notification"},
{180, "PGW Restart Notification Acknowledge"},
/* 181-199 For future use */
/* SGW to PGW, PGW to SGW (S5/S8) */
{200, "Update PDN Connection Set Request"},
{201, "Update PDN Connection Set Response"},
/* 202 to 210 For future use */
/* MME to SGW (S11) */
{211, "Modify Access Bearers Request"},
{212, "Modify Access Bearers Response"},
/* 213 to 230 For future use */
/* MBMS GW to MME/SGSN (Sm/Sn) */
{231, "MBMS Session Start Request"},
{232, "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, "SRVCC CS to PS Response"}, /* 5.2.9 3GPP TS 29.280 V11.5.0 (2013-09) */
{241, "SRVCC CS to PS Complete Notification"}, /* 5.2.10 3GPP TS 29.280 V11.5.0 (2013-09) */
{242, "SRVCC CS to PS Complete Acknowledge"}, /* 5.2.11 3GPP TS 29.280 V11.5.0 (2013-09) */
{243, "SRVCC CS to PS Cancel Notification"}, /* 5.2.12 3GPP TS 29.280 V11.5.0 (2013-09) */
{244, "SRVCC CS to PS Cancel Acknowledge"}, /* 5.2.13 3GPP TS 29.280 V11.5.0 (2013-09) */
/* 245 to 247 For future Sv interface use*/
/* 248 to 255 For future use */
{0, NULL}
};
static value_string_ext gtpv2_message_type_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_message_type_vals);
#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
#define GTPV2_IE_MM_CTX_FOR_CS_TO_PS_SRVCC 62
/* 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_MBMS_SESSION_DURATION 138
#define GTPV2_IE_MBMS_SERVICE_AREA 139
#define GTPV2_IE_MBMS_SESSION_ID 140
#define GTPV2_IE_MBMS_FLOW_ID 141
#define GTPV2_IE_MBMS_IP_MC_DIST 142
#define GTPV2_IE_MBMS_DIST_ACK 143
#define GTPV2_IE_RFSP_INDEX 144
#define GTPV2_IE_UCI 145
#define GTPV2_IE_CSG_INFO_REP_ACTION 146
#define GTPV2_IE_CSG_ID 147
#define GTPV2_IE_CMI 148
#define GTPV2_IE_SERVICE_INDICATOR 149
#define GTPV2_IE_DETACH_TYPE 150
#define GTPV2_IE_LDN 151
#define GTPV2_IE_NODE_FEATURES 152
#define GTPV2_IE_MBMS_TIME_TO_DATA_XFER 153
#define GTPV2_IE_THROTTLING 154
#define GTPV2_IE_ARP 155
#define GTPV2_IE_EPC_TIMER 156
#define GTPV2_IE_SIG_PRIO_IND 157
#define GTPV2_IE_TMGI 158
#define GTPV2_IE_ADD_MM_CONT_FOR_SRVCC 159
#define GTPV2_IE_ADD_FLAGS_FOR_SRVCC 160
#define GTPV2_IE_MMBR 161
#define GTPV2_IE_MDT_CONFIG 162
#define GTPV2_IE_APCO 163
#define GTPV2_IE_ABS_MBMS_DATA_TF_TIME 164
#define GTPV2_IE_HENB_INFO_REPORT 165
#define GTPV2_IE_IP4CP 166
#define GTPV2_IE_CHANGE_TO_REPORT_FLAGS 167
#define GTPV2_IE_ACTION_INDICATION 168
#define GTPV2_IE_TWAN_IDENTIFIER 169
#define GTPV2_IE_ULI_TIMESTAMP 170
#define GTPV2_IE_MBMS_FLAGS 171
#define GTPV2_IE_RAN_NAS_CAUSE 172
#define GTPV2_IE_CN_OP_SEL_ENT 173
#define GTPV2_IE_TRUST_WLAN_MODE_IND 174
#define GTPV2_IE_NODE_NUMBER 175
#define GTPV2_IE_NODE_IDENTIFIER 176
#define GTPV2_IE_PRES_REP_AREA_ACT 177
#define GTPV2_IE_PRES_REP_AREA_INF 178
#define GTPV2_IE_TWAN_ID_TS 179
#define GTPV2_IE_OVERLOAD_CONTROL_INF 180
#define GTPV2_IE_LOAD_CONTROL_INF 181
#define GTPV2_IE_METRIC 182
#define GTPV2_IE_SEQ_NO 183
#define GTPV2_IE_APN_AND_REL_CAP 184
/* 169 to 254 reserved for future use */
#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 */
/* 4-34 Reserved for S101 interface Extendable / See 3GPP TS 29.276 [14] */
/* 4-34 Reserved for S101 interface Extendable / See 3GPP TS 29.276 [14] */
/* 35-50 / See 3GPP TS 29.276 */
/*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, "MM Context for CS to PS SRVCC" }, /* Extendable / 6.13 */
/* 63-70 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"}, /* 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 Length / 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, "EPC Timer"}, /* Extendable / 8.87 */
{157, "Signalling Priority Indication"}, /* Extendable / 8.88 */
{158, "Temporary Mobile Group Identity"}, /* Extendable / 8.89 */
{159, "Additional MM context for SRVCC"}, /* Extendable / 8.90 */
{160, "Additional flags for SRVCC"}, /* Extendable / 8.91 */
{161, "Max MBR/APN-AMBR (MMBR)"}, /* Extendable / 8.92 */
{162, "MDT Configuration"}, /* Extendable / 8.93 */
{163, "Additional Protocol Configuration Options (APCO)"}, /* Extendable / 8.94 */
{164, "Absolute Time of MBMS Data Transfer"}, /* Extendable / 8.95 */
{165, "H(e)NB Information Reporting"}, /* Extendable / 8.96*/
{166, "IPv4 Configuration Parameters (IP4CP)"}, /* Extendable / 8.97*/
{167, "Change to Report Flags"}, /* Extendable / 8.98 */
{168, "Action Indication"}, /* Extendable / 8.99 */
{169, "TWAN Identifier "}, /* Extendable / 8.100 */
{170, "ULI Timestamp"}, /* Extendable / 8.101 */
{171, "MBMS Flags"}, /* Extendable / 8.102 */
{172, "RAN/NAS Cause"}, /* Extendable / 8.103 */
{173, "CN Operator Selection Entity"}, /* Extendable / 8.104 */
{174, "Trusted WLAN Mode Indication"}, /* Extendable / 8.105 */
{175, "Node Number"}, /* Extendable / 8.106 */
{176, "Node Identifier"}, /* Extendable / 8.107 */
{177, "Presence Reporting Area Action"}, /* Extendable / 8.108 */
{178, "Presence Reporting Area Information"}, /* Extendable / 8.109 */
{179, "TWAN Identifier Timestamp"}, /* Extendable / 8.110 */
{180, "Overload Control Information"}, /* Extendable / 8.111 */
{181, "Load Control Information"}, /* Extendable / 8.112 */
{182, "Metric"}, /* Fixed Length / 8.113 */
{183, "Sequence Number"}, /* Fixed Length / 8.114 */
{184, "APN and Relative Capacity"}, /* Extendable / 8.115 */
/* 185 to 254 Spare. For future use. */
{255, "Private Extension"}, /* Variable Length / 8.67 */
{0, NULL}
};
static value_string_ext gtpv2_element_type_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_element_type_vals);
/* Data structure attached to a conversation,
to keep track of request/response-pairs
*/
typedef struct gtpv2_conv_info_t {
wmem_map_t *unmatched;
wmem_map_t *matched;
} gtpv2_conv_info_t;
/*structure used to track responses to requests using sequence number*/
typedef struct gtpv2_msg_hash_entry {
gboolean is_request; /*TRUE/FALSE*/
guint32 req_frame; /*frame with request */
nstime_t req_time; /*req time */
guint32 rep_frame; /*frame with reply */
gint seq_nr; /*sequence number*/
guint msgtype; /*messagetype*/
} gtpv2_msg_hash_t;
static guint
gtpv2_sn_hash(gconstpointer k)
{
const gtpv2_msg_hash_t *key = (const gtpv2_msg_hash_t *)k;
return key->seq_nr;
}
static gint
gtpv2_sn_equal_matched(gconstpointer k1, gconstpointer k2)
{
const gtpv2_msg_hash_t *key1 = (const gtpv2_msg_hash_t *)k1;
const gtpv2_msg_hash_t *key2 = (const gtpv2_msg_hash_t *)k2;
if (key1->req_frame && key2->req_frame && (key1->req_frame != key2->req_frame)) {
return 0;
}
if (key1->rep_frame && key2->rep_frame && (key1->rep_frame != key2->rep_frame)) {
return 0;
}
return key1->seq_nr == key2->seq_nr;
}
static gint
gtpv2_sn_equal_unmatched(gconstpointer k1, gconstpointer k2)
{
const gtpv2_msg_hash_t *key1 = (const gtpv2_msg_hash_t *)k1;
const gtpv2_msg_hash_t *key2 = (const gtpv2_msg_hash_t *)k2;
return key1->seq_nr == key2->seq_nr;
}
/* 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_tree_add_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, 0, length);
}
/*
* 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 wmem
* allocated string will be returned.
*/
imsi_str = dissect_e212_imsi(tvb, pinfo, tree, offset, length, FALSE);
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 / Initial message */
{ 1, "Reserved"},
{ 2, "Local Detach"},
{ 3, "Complete Detach"},
{ 4, "RAT changed from 3GPP to Non-3GPP"},
{ 5, "ISR deactivation"},
{ 6, "Error Indication received from RNC/eNodeB/S4-SGSN"},
{ 7, "IMSI Detach Only"},
{ 8, "Reactivation Requested"},
{ 9, "PDN reconnection to this APN disallowed"},
{ 10, "Access changed from Non-3GPP to 3GPP"},
{ 11, "PDN connection inactivity timer expires"},
{ 12, "PGW not responding"},
{ 13, "Network Failure"},
{ 14, "QoS parameter mismatch"},
/* 15 Spare. This value range is reserved for Cause values in a request message */
{ 15, "Spare"},
/* Acceptance in a Response / triggered message */
{ 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 shall be used by Cause values in an acceptance response/triggered message */
{ 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"},
/* Rejection in a Response / triggered message */
{ 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, "Shall not be used"},
{ 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, "Shall not be used"},
{ 80, "GRE key not found"},
{ 81, "Relocation 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(reason not specified)"},
{ 95, "P-TMSI Signature mismatch"},
{ 96, "IMSI/IMEI not known"},
{ 97, "Semantic error in the TAD operation"},
{ 98, "Syntactic error in the TAD operation"},
{ 99, "Shall not be used"},
{100, "Remote peer 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, "APN Congestion"},
{114, "Bearer handling not supported"},
{115, "UE already re-attached"},
{116, "Multiple PDN connections for a given APN not allowed"},
/* 117-239 Spare. For future use in a triggered/response message */
/* 240-255 Spare. For future use in an initial/request message */
{0, NULL}
};
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 += 1;
/* 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 += 1;
/* 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 += 1;
/* 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);
}
/*
* 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_NA);
new_tvb = tvb_new_subset_length(tvb, offset, 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_)
{
tvbuff_t *new_tvb;
proto_tree *sub_tree;
int offset = 0;
proto_tree_add_item(tree, hf_gtpv2_len_trans_con, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/*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_item(tree, hf_gtpv2_transparent_container, tvb, offset, length-1, ENC_NA);
/*
* bssmap_old_bss_to_new_bss_info(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo);
* dissect_ranap_SourceRNC_ToTargetRNC_TransparentContainer_PDU
*/
if (message_type == GTPV2_SRVCC_PS_TO_CS_REQUEST) {
sub_tree = proto_tree_add_subtree(tree, tvb, offset, length, ett_gtpv2_utran_con, NULL, "Source RNC to Target RNC Transparent Container");
new_tvb = tvb_new_subset_remaining(tvb, offset);
dissect_ranap_SourceRNC_ToTargetRNC_TransparentContainer_PDU(new_tvb, pinfo, sub_tree, NULL);
}
}
/* 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 += 1;
/* Transparent Container */
proto_tree_add_item(tree, hf_gtpv2_transparent_container, tvb, offset, length-1, ENC_NA);
}
/* 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 += 1;
proto_tree_add_item(tree, hf_gtpv2_cksrvcc, tvb, offset, 16, ENC_NA);
offset += 16;
proto_tree_add_item(tree, hf_gtpv2_iksrvcc, tvb, offset, 16, ENC_NA);
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 += 1;
fi = proto_tree_add_item(tree, hf_gtpv2_mobile_station_classmark2, tvb, offset, elm_len, ENC_NA);
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 += 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 += 1;
fi = proto_tree_add_item(tree, hf_gtpv2_mobile_station_classmark3, tvb, offset, elm_len, ENC_NA);
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 += 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 += 1;
fi = proto_tree_add_item(tree, hf_gtpv2_supported_codec_list, tvb, offset, elm_len, ENC_NA);
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);
}
/* 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 += 1;
proto_tree_add_item(tree, hf_gtpv2_utran_srvcc_ck_cs, tvb, offset, 16, ENC_NA);
offset += 16;
proto_tree_add_item(tree, hf_gtpv2_utran_srvcc_ik_cs, tvb, offset, 16, ENC_NA);
offset += 16;
proto_tree_add_item(tree, hf_gtpv2_utran_srvcc_kc, tvb, offset, 8, ENC_NA);
offset += 8;
proto_tree_add_item(tree, hf_gtpv2_cksn, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/*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 += 1;
fi = proto_tree_add_item(tree, hf_gtpv2_mobile_station_classmark2, tvb, offset, elm_len, ENC_NA);
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 += 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 += 1;
fi = proto_tree_add_item(tree, hf_gtpv2_mobile_station_classmark3, tvb, offset, elm_len, ENC_NA);
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 += 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 += 1;
fi = proto_tree_add_item(tree, hf_gtpv2_supported_codec_list, tvb, offset, elm_len, ENC_NA);
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);
}
/* 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"},
{9, "Permanent session leg establishment error"},
{10, "Temporary session leg establishment error"},
{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, offset);
proto_tree_add_item(tree, hf_gtpv2_srvcc_cause, tvb, offset, 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);
}
/*
* 3GPP TS 29.280 version 10.3.0
* 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;
guint16 rnc_id;
proto_tree *subtree;
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_ntohs(tvb, curr_offset + 5);
subtree = proto_tree_add_subtree_format(tree,
tvb, curr_offset, 6, ett_gtpv2_rai, NULL,
"Routing area identification: %x-%x-%u-%u",
mcc, mnc, lac, rnc_id);
dissect_e212_mcc_mnc(tvb, pinfo, subtree, offset, E212_RAI, TRUE);
curr_offset+=3;
proto_tree_add_item(subtree, hf_gtpv2_lac, tvb, curr_offset, 2, ENC_BIG_ENDIAN);
curr_offset+=2;
proto_tree_add_item(subtree, hf_gtpv2_rnc_id, tvb, curr_offset, 2, ENC_BIG_ENDIAN);
/*curr_offset+=2;*/
/* no length check possible */
}
/*
* 3GPP TS 29.280
* 6.9 Target Global Cell ID
* The encoding of this IE is defined in 3GPP TS 29.002
* GlobalCellId ::= OCTET STRING (SIZE (5..7))
* -- Refers to Cell Global Identification defined in TS 3GPP TS 23.003 [17].
* -- The internal structure is defined as follows:
* -- octet 1 bits 4321 Mobile Country Code 1st digit
* -- bits 8765 Mobile Country Code 2nd digit
* -- octet 2 bits 4321 Mobile Country Code 3rd digit
* -- bits 8765 Mobile Network Code 3rd digit
* -- or filler (1111) for 2 digit MNCs
* -- octet 3 bits 4321 Mobile Network Code 1st digit
* -- bits 8765 Mobile Network Code 2nd digit
* -- octets 4 and 5 Location Area Code according to TS 3GPP TS 24.008 [35]
* -- octets 6 and 7 Cell Identity (CI) according to TS 3GPP TS 24.008 [35]
*/
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;
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);
subtree = proto_tree_add_subtree_format(tree,
tvb, curr_offset, 6, ett_gtpv2_rai, NULL,
"Routing area identification: %x-%x-%u-%u",
mcc, mnc, lac, tgt_cell_id);
dissect_e212_mcc_mnc(tvb, pinfo, subtree, offset, E212_RAI, 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, 2, ENC_BIG_ENDIAN);
proto_item_append_text(item, "%x-%x-%u-%u", mcc, mnc, lac, tgt_cell_id);
/* 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 += 4;
if (length > 4)
proto_tree_add_item(tree, hf_gtpv2_teid_c_spare, tvb, offset, length-4, ENC_NA);
proto_item_append_text(item, "%u", tvb_get_ntohl(tvb, offset-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 += 1;
if (length > 1)
proto_tree_add_item(tree, hf_gtpv2_teid_c_spare, tvb, offset, length-1, ENC_NA);
}
/* 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, E212_SAI, 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);
}
/* 6.13 MM Context for CS to PS SRVCC */
static void
dissect_gtpv2_mm_ctx_for_cs_to_ps_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;
/* Octet 5 KSI"PS */
proto_tree_add_item(tree, hf_gtpv2_ksi_ps, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* octet 6 - 21 CK'PS */
proto_tree_add_item(tree, hf_gtpv2_ck_ps, tvb, offset, 16, ENC_NA);
offset+=16;
/* octet 22 - 37 IK'PS */
proto_tree_add_item(tree, hf_gtpv2_ik_ps, tvb, offset, 16, ENC_NA);
offset += 16;
/* octet 38 to 45 kc'PS */
proto_tree_add_item(tree, hf_gtpv2_kc_ps, tvb, offset, 8, ENC_NA);
offset += 8;
/* Octet 46 CKSN"PS */
proto_tree_add_item(tree, hf_gtpv2_cksn_ps, tvb, offset, 1, ENC_BIG_ENDIAN);
/*offset++;*/
}
/*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_string_enc(wmem_packet_scope(), tvb, offset + 1, length - 1, ENC_ASCII);
for (;;) {
if (name_len >= length - 1)
break;
tmp = name_len;
name_len = name_len + apn[tmp] + 1;
apn[tmp] = '.';
}
} else{
apn = tvb_get_string_enc(wmem_packet_scope(), tvb, offset, length, ENC_ASCII);
}
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 += 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;
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_NA);
proto_item_append_text(item, "IPv6 %s", tvb_ip6_to_str(tvb, offset));
}
}
/*
* 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_wmem_packet_str( tvb, 0, length, NULL, FALSE);
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".
*/
/* 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 = dissect_e164_msisdn(tvb, tree, 0, length, E164_ENC_BCD);
proto_item_append_text(item, "%s", digit_str);
}
/*
* 8.12 Indication
*/
static void
dissect_gtpv2_ind(tvbuff_t *tvb, packet_info *pinfo, 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_expert_format(tree, pinfo, &ei_gtpv2_ie_len_invalid, tvb, 0, length, "Older version?, should be 2 octets in 8.0.0");
return;
}
offset += 1;
/* 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 += 1;
if (length == 2) {
return;
}
/* Only present in version 9 and higher */
/* Octet 7 RetLoc PBIC SRNI S6AF S4AF MBMDT ISRAU CCRSI */
proto_tree_add_item(tree, hf_gtpv2_retloc, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_pbic, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_srni, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_s6af, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_s4af, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_mbmdt, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_israu, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_ccrsi, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
if (length == 3) {
return;
}
/* Octet 8 CPRAI ARRL PPOF PPON/PPEI PPSI CSFBI CLII CPSR */
proto_tree_add_item(tree, hf_gtpv2_cprai, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_arrl, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_ppof, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_ppon_ppei, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_ppsi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_csfbi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_clii, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_cpsr, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
if (length == 4) {
return;
}
/* Octet 9 Spare Spare Spare Spare Spare PCRI AOSI AOPI */
proto_tree_add_item(tree, hf_gtpv2_pcri, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_aosi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_aopi, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
if (length == 5) {
return;
}
proto_tree_add_expert_format(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, -1, "The rest of the IE not dissected yet");
}
/*
* 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:
case GTPV2_DELETE_SESSION_REQUEST:
case GTPV2_BEARER_RESOURCE_COMMAND:
case GTPV2_CREATE_BEARER_RESPONSE:
case GTPV2_UPDATE_BEARER_RESPONSE:
case GTPV2_DELETE_BEARER_RESPONSE:
/* PCO options as MS to network direction */
pinfo->link_dir = P2P_DIR_UL;
break;
case GTPV2_CREATE_SESSION_RESPONSE:
case GTPV2_MODIFY_BEARER_RESPONSE:
case GTPV2_DELETE_SESSION_RESPONSE:
case GTPV2_CREATE_BEARER_REQUEST:
case GTPV2_UPDATE_BEARER_REQUEST:
case GTPV2_DELETE_BEARER_REQUEST:
/* 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 += 1;
switch (pdn_type)
{
case 1:
/* IPv4 */
proto_tree_add_item(tree, hf_gtpv2_pdn_ipv4, tvb, offset, 4, ENC_BIG_ENDIAN);
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 += 1;
proto_tree_add_item(tree, hf_gtpv2_pdn_ipv6, tvb, offset, 16, ENC_NA);
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 += 1;
proto_tree_add_item(tree, hf_gtpv2_pdn_ipv6, tvb, offset, 16, ENC_NA);
offset += 16;
proto_tree_add_item(tree, hf_gtpv2_pdn_ipv4, tvb, offset, 4, ENC_BIG_ENDIAN);
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 += 1;
proto_tree_add_item(tree, hf_gtpv2_bearer_qos_label_qci, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(tree, hf_gtpv2_bearer_qos_mbr_up, tvb, offset, 5, ENC_BIG_ENDIAN);
offset += 5;
proto_tree_add_item(tree, hf_gtpv2_bearer_qos_mbr_down, tvb, offset, 5, ENC_BIG_ENDIAN);
offset += 5;
proto_tree_add_item(tree, hf_gtpv2_bearer_qos_gbr_up, tvb, offset, 5, ENC_BIG_ENDIAN);
offset += 5;
proto_tree_add_item(tree, hf_gtpv2_bearer_qos_gbr_down, tvb, offset, 5, ENC_BIG_ENDIAN);
}
/*
* 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 += 1;
proto_tree_add_item(tree, hf_gtpv2_flow_qos_mbr_up, tvb, offset, 5, ENC_BIG_ENDIAN);
offset += 5;
proto_tree_add_item(tree, hf_gtpv2_flow_qos_mbr_down, tvb, offset, 5, ENC_BIG_ENDIAN);
offset += 5;
proto_tree_add_item(tree, hf_gtpv2_flow_qos_gbr_up, tvb, offset, 5, ENC_BIG_ENDIAN);
offset += 5;
proto_tree_add_item(tree, hf_gtpv2_flow_qos_gbr_down, tvb, offset, 5, ENC_BIG_ENDIAN);
}
/*
* 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_wmem_packet_str(tvb, pinfo, tree, 0, E212_NONE, 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 gchar*
dissect_gtpv2_tai(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int *offset)
{
gchar *str = NULL;
gchar *mcc_mnc_str;
guint16 tac;
mcc_mnc_str = dissect_e212_mcc_mnc_wmem_packet_str(tvb, pinfo, tree, *offset, E212_NONE, TRUE);
*offset += 3;
tac = tvb_get_ntohs(tvb, *offset);
proto_tree_add_item(tree, hf_gtpv2_tai_tac, tvb, *offset, 2, ENC_BIG_ENDIAN);
*offset += 2;
str = wmem_strdup_printf(wmem_packet_scope(), "%s, TAC 0x%x",
mcc_mnc_str,
tac);
return str;
}
static gchar*
dissect_gtpv2_ecgi(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int *offset)
{
gchar *str = NULL;
gchar *mcc_mnc_str;
guint8 octet;
guint32 octet4;
guint8 spare;
guint32 ECGI;
mcc_mnc_str = dissect_e212_mcc_mnc_wmem_packet_str(tvb, pinfo, tree, *offset, E212_NONE, 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(tree, hf_gtpv2_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(tree, hf_gtpv2_ecgi_eci, tvb, *offset, 4, ECGI);
/*proto_tree_add_item(tree, hf_gtpv2_ecgi_eci, tvb, offset, 4, ENC_BIG_ENDIAN);*/
*offset += 4;
str = wmem_strdup_printf(wmem_packet_scope(), "%s, ECGI 0x%x",
mcc_mnc_str,
ECGI);
return str;
}
static gchar*
dissect_gtpv2_rai(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int *offset)
{
gchar *str = NULL;
gchar *mcc_mnc_str;
guint16 lac, rac;
mcc_mnc_str = dissect_e212_mcc_mnc_wmem_packet_str(tvb, pinfo, tree, *offset, E212_RAI, TRUE);
*offset += 3;
lac = tvb_get_ntohs(tvb, *offset);
proto_tree_add_item(tree, hf_gtpv2_rai_lac, tvb, *offset, 2, ENC_BIG_ENDIAN);
*offset += 2;
rac = tvb_get_ntohs(tvb, *offset);
proto_tree_add_item(tree, hf_gtpv2_rai_rac, tvb, *offset, 2, ENC_BIG_ENDIAN);
*offset += 2;
str = wmem_strdup_printf(wmem_packet_scope(), "%s, LAC 0x%x, RAC 0x%x",
mcc_mnc_str,
lac,
rac);
return str;
}
static gchar*
dissect_gtpv2_sai_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int *offset)
{
gchar *str = NULL;
gchar *mcc_mnc_str;
guint16 lac, sac;
mcc_mnc_str = dissect_e212_mcc_mnc_wmem_packet_str(tvb, pinfo, tree, *offset, E212_SAI, TRUE);
*offset += 3;
lac = tvb_get_ntohs(tvb, *offset);
proto_tree_add_item(tree, hf_gtpv2_sai_lac, tvb, *offset, 2, ENC_BIG_ENDIAN);
*offset += 2;
sac = tvb_get_ntohs(tvb, *offset);
proto_tree_add_item(tree, hf_gtpv2_sai_sac, tvb, *offset, 2, ENC_BIG_ENDIAN);
*offset += 2;
str = wmem_strdup_printf(wmem_packet_scope(), "%s, LAC 0x%x, SAC 0x%x",
mcc_mnc_str,
lac,
sac);
return str;
}
static gchar*
dissect_gtpv2_cgi(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int *offset)
{
gchar *str = NULL;
gchar *mcc_mnc_str;
guint16 lac, ci;
mcc_mnc_str = dissect_e212_mcc_mnc_wmem_packet_str(tvb, pinfo, tree, *offset, E212_NONE, TRUE);
*offset += 3;
lac = tvb_get_ntohs(tvb, *offset);
proto_tree_add_item(tree, hf_gtpv2_uli_cgi_lac, tvb, *offset, 2, ENC_BIG_ENDIAN);
*offset += 2;
ci = tvb_get_ntohs(tvb, *offset);
proto_tree_add_item(tree, hf_gtpv2_uli_cgi_ci, tvb, *offset, 2, ENC_BIG_ENDIAN);
*offset += 2;
str = wmem_strdup_printf(wmem_packet_scope(), "%s, LAC 0x%x, CI 0x%x",
mcc_mnc_str,
lac,
ci);
return str;
}
static gchar*
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_tree *part_tree;
gchar *mcc_mnc_str;
gchar *str = NULL;
/* 8.21.1 CGI field */
if (flags & GTPv2_ULI_CGI_MASK)
{
proto_item_append_text(item, "CGI ");
part_tree = proto_tree_add_subtree(tree, tvb, offset, 7,
ett_gtpv2_uli_field, NULL, "Cell Global Identity (CGI)");
str = dissect_gtpv2_cgi(tvb, pinfo, part_tree, &offset);
if (offset == length)
return str;
}
/* 8.21.2 SAI field */
if (flags & GTPv2_ULI_SAI_MASK)
{
proto_item_append_text(item, "SAI ");
part_tree = proto_tree_add_subtree(tree, tvb, offset, 7,
ett_gtpv2_uli_field, NULL, "Service Area Identity (SAI)");
str = dissect_gtpv2_sai_common(tvb, pinfo, part_tree, &offset);
if (offset == length)
return str;
}
/* 8.21.3 RAI field */
if (flags & GTPv2_ULI_RAI_MASK)
{
proto_item_append_text(item, "RAI ");
part_tree = proto_tree_add_subtree(tree, tvb, offset, 7,
ett_gtpv2_uli_field, NULL, "Routeing Area Identity (RAI)");
str = dissect_gtpv2_rai(tvb, pinfo, part_tree, &offset);
if (offset == length)
return str;
}
/* 8.21.4 TAI field */
if (flags & GTPv2_ULI_TAI_MASK)
{
proto_item_append_text(item, "TAI ");
part_tree = proto_tree_add_subtree(tree, tvb, offset, 5,
ett_gtpv2_uli_field, NULL, "Tracking Area Identity (TAI)");
str = dissect_gtpv2_tai(tvb, pinfo, part_tree, &offset);
if (offset == length)
return str;
}
/* 8.21.5 ECGI field */
if (flags & GTPv2_ULI_ECGI_MASK)
{
proto_item_append_text(item, "ECGI ");
part_tree = proto_tree_add_subtree(tree, tvb, offset, 7,
ett_gtpv2_uli_field, NULL, "E-UTRAN Cell Global Identifier (ECGI)");
str = dissect_gtpv2_ecgi(tvb, pinfo, part_tree, &offset);
if (offset == length)
return str;
}
/* 8.21.6 LAI field */
if (flags & GTPv2_ULI_LAI_MASK)
{
guint16 lac;
proto_item_append_text(item, "LAI ");
part_tree = proto_tree_add_subtree(tree, tvb, offset, 5,
ett_gtpv2_uli_field, NULL, "LAI (Location Area Identifier)");
mcc_mnc_str = dissect_e212_mcc_mnc_wmem_packet_str(tvb, pinfo, part_tree, offset, E212_LAI, 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);
lac = tvb_get_ntohs(tvb, offset);
str = wmem_strdup_printf(wmem_packet_scope(), "%s, LAC 0x%x",
mcc_mnc_str,
lac);
}
return str;
}
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_tree *flag_tree;
int offset = 0;
guint flags;
flag_tree = proto_tree_add_subtree(tree, tvb, offset, 1, ett_gtpv2_uli_flags, NULL, "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, void *data)
{
diam_sub_dis_t *diam_sub_dis = (diam_sub_dis_t*)data;
int offset = 0;
guint length;
guint flags;
guint flags_3gpp;
length = tvb_reported_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_item(tree, hf_gtpv2_geographic_location, tvb, 1, -1, ENC_NA);
return length;
}
diam_sub_dis->avp_str = 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"},
{34, "S2a TWAN GTP-U interface"},
{35, "S2a TWAN GTP-C interface"},
{36, "S2a PGW GTP-C interface"},
{37, "S2a 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);
/* NOTE: "Interface type" IE is defined with 5 bits only in the earlier releases of this specification,
* thus pre-Rel-10 GTPv2-C nodes can ignore bit "6" which is marked as "Spare" in earlier releases,
* allowing backward compatibility.
*/
proto_tree_add_item(tree, hf_gtpv2_f_teid_interface_type, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
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 & 0x3f), &gtpv2_f_teid_interface_type_vals_ext, "Unknown"),
tvb_bytes_to_str(wmem_packet_scope(), tvb, offset, 4));
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 += 4;
}
if (flags & 0x40)
{
proto_tree_add_item(tree, hf_gtpv2_f_teid_ipv6, tvb, offset, 16, ENC_NA);
proto_item_append_text(item, ", IPv6 %s", tvb_ip6_to_str(tvb, offset));
}
}
/*
* 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_item(item, hf_gtpv2_tmsi_bytes, tvb, 0, length, ENC_NA);
}
/*
* 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, E212_NONE, TRUE);
offset += 3;
/* >CN-ID M INTEGER (0..4095) */
proto_tree_add_item(tree, hf_gtpv2_cn_id, tvb, offset, 2, ENC_NA);
}
/*
* 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_)
{
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 += 1;
/* 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_NA);
offset += 16;
break;
default:
/* Error */
proto_tree_add_expert_format(tree, pinfo, &ei_gtpv2_ie_len_invalid, tvb, 0, length,
"Wrong length %u, should be 4 or 16", m);
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_item(tree, hf_gtpv2_eps_bearer_id_number, tvb, offset, 1, ENC_BIG_ENDIAN);
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 += 1;
}
}
/*
* 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_)
{
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 += 1;
/* 6 Serving GW Address Length = m */
m = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_serving_gw_address_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* 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_NA);
offset += 16;
break;
default:
/* Error */
proto_tree_add_expert_format(tree, pinfo, &ei_gtpv2_ie_len_invalid, tvb, 0, length,
"Wrong length %u, should be 4 or 16", m);
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_length(tvb, offset, 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_item(tree, hf_gtpv2_charging_characteristic_remaining_octets, tvb, offset, length-2, ENC_NA);
}
}
/*
* 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_tree_add_expert_format(tree, pinfo, &ei_gtpv2_ie_len_invalid, tvb, 0, length,
"Wrong length indicated. Expected 1, got %u", length);
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_const(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_tree *trigg_tree, *msc_server_tree, *mgw_tree, *sgsn_tree, *ggsn_tree;
proto_tree *bm_sc_tree, *sgw_mme_tree, *sgw_tree, *pgw_tree, *ne_types_tree;
proto_tree *interfaces_tree, *imsc_server_tree, *lmgw_tree, *lsgsn_tree, *lggsn_tree, *lrnc_tree;
proto_tree *lbm_sc_tree, *lmme_tree, *lsgw_tree, *lpdn_gw_tree, *lenb_tree;
int offset = 0;
#if 0
guint8 *trace_id = NULL;
#endif
guint16 tid;
guint32 bit_offset;
dissect_e212_mcc_mnc(tvb, pinfo, tree, 0, E212_NONE, 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_item(tree, hf_gtpv2_trace_id, tvb, offset, 3, ENC_BIG_ENDIAN);
offset += 3;
/* Triggering Events, put all into a new tree called triggering_tree */
trigg_tree = proto_tree_add_subtree(tree, tvb, offset, 9, ett_gtpv2_tra_info_trigg, NULL, "Triggering Events");
/* Create all subtrees */
msc_server_tree = proto_tree_add_subtree(trigg_tree, tvb, offset, 2, ett_gtpv2_tra_info_trigg_msc_server, NULL, "MSC Server");
mgw_tree = proto_tree_add_subtree(trigg_tree, tvb, offset + 2, 1, ett_gtpv2_tra_info_trigg_mgw, NULL, "MGW");
sgsn_tree = proto_tree_add_subtree(trigg_tree, tvb, offset + 3, 2, ett_gtpv2_tra_info_trigg_sgsn, NULL, "SGSN");
ggsn_tree = proto_tree_add_subtree(trigg_tree, tvb, offset + 5, 1, ett_gtpv2_tra_info_trigg_ggsn, NULL, "GGSN");
bm_sc_tree = proto_tree_add_subtree(trigg_tree, tvb, offset + 6, 1, ett_gtpv2_tra_info_trigg_bm_sc, NULL, "BM-SC");
sgw_mme_tree = proto_tree_add_subtree(trigg_tree, tvb, offset + 7, 1, ett_gtpv2_tra_info_trigg_sgw_mme, NULL, "SGW MME");
sgw_tree = proto_tree_add_subtree(trigg_tree, tvb, offset + 8, 1, ett_gtpv2_tra_info_trigg_sgw, NULL, "SGW");
pgw_tree = proto_tree_add_subtree(trigg_tree, tvb, offset + 8, 1, ett_gtpv2_tra_info_trigg_pgw, NULL, "PGW");
/* 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);
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);
proto_tree_add_item(sgw_mme_tree, hf_gtpv2_tra_info_mme_sgw_ue_init_pdn_disc, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(sgw_mme_tree, hf_gtpv2_tra_info_mme_sgw_bearer_act_mod_del, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(sgw_mme_tree, hf_gtpv2_tra_info_mme_sgw_ho, 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, 2, ENC_BIG_ENDIAN);
offset += 1;
/* PGW/SGW - 1 octet */
proto_tree_add_item(sgw_tree, hf_gtpv2_tra_info_sgw_pdn_con_creat, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(sgw_tree, hf_gtpv2_tra_info_sgw_pdn_con_term, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(sgw_tree, hf_gtpv2_tra_info_sgw_bearer_act_mod_del, tvb, offset, 1, ENC_BIG_ENDIAN);
bit_offset = (offset << 3) + 4;
proto_tree_add_bits_item(sgw_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(pgw_tree, hf_gtpv2_tra_info_pgw_pdn_con_creat, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(pgw_tree, hf_gtpv2_tra_info_pgw_pdn_con_term, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(pgw_tree, hf_gtpv2_tra_info_pgw_bearer_act_mod_del, tvb, offset, 1, ENC_BIG_ENDIAN);
bit_offset = offset << 3;
proto_tree_add_bits_item(pgw_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Create NE Types subtree */
ne_types_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_gtpv2_tra_info_ne_types, NULL, "List of 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 */
proto_tree_add_item(tree, hf_gtpv2_tra_info_tdl, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Set up subtree interfaces and put all interfaces under it */
interfaces_tree = proto_tree_add_subtree(tree, tvb, offset, 12, ett_gtpv2_tra_info_interfaces, NULL, "List of Interfaces");
/* Create all subtrees */
imsc_server_tree = proto_tree_add_subtree(interfaces_tree, tvb, offset, 2, ett_gtpv2_tra_info_interfaces_imsc_server, NULL, "MSC Server");
lmgw_tree = proto_tree_add_subtree(interfaces_tree, tvb, offset + 2, 1, ett_gtpv2_tra_info_interfaces_lmgw, NULL, "MGW");
lsgsn_tree = proto_tree_add_subtree(interfaces_tree, tvb, offset + 3, 2, ett_gtpv2_tra_info_interfaces_lsgsn, NULL, "SGSN");
lggsn_tree = proto_tree_add_subtree(interfaces_tree, tvb, offset + 5, 1, ett_gtpv2_tra_info_interfaces_lggsn, NULL, "GGSN");
lrnc_tree = proto_tree_add_subtree(interfaces_tree, tvb, offset + 6, 1, ett_gtpv2_tra_info_interfaces_lrnc, NULL, "RNC");
lbm_sc_tree = proto_tree_add_subtree(interfaces_tree, tvb, offset + 7, 1, ett_gtpv2_tra_info_interfaces_lbm_sc, NULL, "BM-SC");
lmme_tree = proto_tree_add_subtree(interfaces_tree, tvb, offset + 8, 1, ett_gtpv2_tra_info_interfaces_lmme, NULL, "MME");
lsgw_tree = proto_tree_add_subtree(interfaces_tree, tvb, offset + 9, 1,ett_gtpv2_tra_info_interfaces_lsgw, NULL, "SGW");
lpdn_gw_tree = proto_tree_add_subtree(interfaces_tree, tvb, offset + 10, 1, ett_gtpv2_tra_info_interfaces_lpdn_gw, NULL, "PDN GW");
lenb_tree = proto_tree_add_subtree(interfaces_tree, tvb, offset + 11, 1, ett_gtpv2_tra_info_interfaces_lpdn_lenb, NULL, "eNB");
/* MSC Server - 2 octets */
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_item(tree, hf_gtpv2_drx_parameter, tvb, offset, length, ENC_NA);
}
/*
* 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, "128-EEA1"},
{2, "128-EEA2"},
{3, "EEA3"},
{4, "EEA4" },
{5, "EEA5"},
{6, "EEA6"},
{7, "EEA7"},
{0, NULL}
};
/* Table 8.38-3: Used Cipher Values */
static const value_string gtpv2_mm_context_used_cipher_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}
};
/* Helper functions */
/* Figure 8.38-7: Authentication Triplet */
static int
dissect_gtpv2_authentication_triplets(tvbuff_t *tvb, proto_tree *tree, int offset, guint8 num_triplet)
{
proto_tree *auth_tri_tree;
int i;
for (i = 0; i < num_triplet; i++) {
auth_tri_tree = proto_tree_add_subtree_format(tree, tvb, offset, 0,
ett_gtpv2_mm_context_auth_tri, NULL, "Authentication Triplet %u", i);
/*
* Figure 8.38-8: Authentication Quintuplet
* 1 to 16 RAND
* 17 to 20 SRES
* 21 to 28 Kc
*/
proto_tree_add_item(auth_tri_tree, hf_gtpv2_mm_context_rand, tvb, offset, 16, ENC_NA);
offset += 16;
proto_tree_add_item(auth_tri_tree, hf_gtpv2_mm_context_sres, tvb, offset, 4, ENC_NA);
offset += 4;
proto_tree_add_item(auth_tri_tree, hf_gtpv2_mm_context_kc, tvb, offset, 8, ENC_NA);
offset += 8;
}
return offset;
}
static int
dissect_gtpv2_authentication_quintuplets(tvbuff_t *tvb, proto_tree *tree, int offset, guint8 nr_qui)
{
proto_tree *auth_qui_tree;
int i;
guint8 xres_len, autn_len;
for (i = 0; i < nr_qui; i++) {
auth_qui_tree = proto_tree_add_subtree_format(tree, tvb, offset, 0,
ett_gtpv2_mm_context_auth_qui, NULL, "Authentication Quintuplet %u", i);
/*
* Figure 8.38-8: Authentication Quintuplet
* 1 to 16 RAND
* 17 XRES Length
* 18 to m XRES
* (m+1) to (m+16) CK
* (m+17) to (m+32) IK
* m+33 AUTN Length
* (m+34) to n AUTN
*/
proto_tree_add_item(auth_qui_tree, hf_gtpv2_mm_context_rand, tvb, offset, 16, ENC_NA);
offset += 16;
xres_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(auth_qui_tree, hf_gtpv2_mm_context_xres_len, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(auth_qui_tree, hf_gtpv2_mm_context_xres, tvb, offset, xres_len, ENC_NA);
offset += xres_len;
proto_tree_add_item(auth_qui_tree, hf_gtpv2_ck, tvb, offset, 16, ENC_NA);
offset += 16;
proto_tree_add_item(auth_qui_tree, hf_gtpv2_ik, tvb, offset, 16, ENC_NA);
offset += 16;
autn_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(auth_qui_tree, hf_gtpv2_mm_context_autn_len, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(auth_qui_tree, hf_gtpv2_mm_context_autn, tvb, offset, autn_len, ENC_NA);
offset += autn_len;
}
return offset;
}
static int
dissect_gtpv2_authentication_quadruplets(tvbuff_t *tvb, proto_tree *tree, int offset, guint8 nr_qui)
{
proto_tree *auth_qua_tree;
guint8 tmp;
int i;
for (i = 0; i < nr_qui; i++) {
auth_qua_tree = proto_tree_add_subtree(tree, tvb, offset, 0,
ett_gtpv2_mm_context_auth_qua, NULL, "Authentication Quadruplet");
proto_tree_add_item(auth_qua_tree, hf_gtpv2_mm_context_rand, tvb, offset, 16, ENC_NA);
offset += 16;
tmp = tvb_get_guint8(tvb, offset++);
proto_tree_add_item(auth_qua_tree, hf_gtpv2_mm_context_xres, tvb, offset, tmp, ENC_NA);
offset += tmp;
tmp = tvb_get_guint8(tvb, offset++);
proto_tree_add_item(auth_qua_tree, hf_gtpv2_mm_context_autn, tvb, offset, tmp, ENC_NA);
offset += tmp;
proto_tree_add_item(tree, hf_gtpv2_mm_context_kasme, tvb, offset, 32, ENC_NA);
offset += 32;
}
return offset;
}
static const value_string gtpv2_mm_context_higher_br_16mb_flg_vals[] = {
{0, "Not allowed"},
{1, "Allowed"},
{0, NULL}
};
static int
dissect_gtpv2_mm_context_common_data(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, guint8 samb_ri, guint8 uamb_ri)
{
proto_tree *net_cap_tree, *msnt_cap_tree;
guint8 ue_net_cap_len, ms_net_cap_len, mei_len;
guint32 tmp;
/*
* If SAMBRI (Subscribed UE AMBR Indicator), bit 1 of octet 6, is set to "1",
* then the Uplink/downlink Subscribed UE AMBR parameter field is present,
*/
if (samb_ri) {
/* j to (j+3) Uplink Subscribed UE AMBR */
tmp = tvb_get_ntohl(tvb, offset);
proto_tree_add_uint_format_value(tree, hf_gtpv2_uplink_subscribed_ue_ambr, tvb, offset, 4, tmp, "%d Kbps", tmp);
offset += 4;
/* (j+4) to (j+7) Downlink Subscribed UE AMBR */
tmp = tvb_get_ntohl(tvb, offset);
proto_tree_add_uint_format_value(tree, hf_gtpv2_downlink_subscribed_ue_ambr, tvb, offset, 4, tmp, "%d Kbps", tmp);
offset += 4;
}
/*
* If UAMBRI (Used UE AMBR Indicator), bit 2 of octet 6, is set to "1",
* then the Uplink/downlink Used UE AMBR parameter field is present
*/
if (uamb_ri) {
/* i to (i+3) Uplink Used UE AMBR */
tmp = tvb_get_ntohl(tvb, offset);
proto_tree_add_uint_format_value(tree, hf_gtpv2_uplink_used_ue_ambr, tvb, offset, 4, tmp, "%d Kbps", tmp);
offset += 4;
/* (i+4) to (i+7) Downlink Used UE AMBR */
tmp = tvb_get_ntohl(tvb, offset);
proto_tree_add_uint_format_value(tree, hf_gtpv2_downlink_used_ue_ambr, tvb, offset, 4, tmp, "%d Kbps", tmp);
offset += 4;
}
/* q Length of UE Network Capability */
ue_net_cap_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_mm_context_ue_net_cap_len, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* (q+1) to k UE Network Capability */
if (ue_net_cap_len) {
/* The UE Network Capability coding is specified in clause 9.9.3.34 of 3GPP TS 24.301 [23].
* If Length of UE Network Capability is zero, then the UE Network Capability parameter
* shall not be present.
*/
net_cap_tree = proto_tree_add_subtree(tree, tvb, offset, ue_net_cap_len,
ett_gtpv2_mm_context_net_cap, NULL, "UE Network Capability");
offset += de_emm_ue_net_cap(tvb, net_cap_tree, pinfo, offset, ue_net_cap_len, NULL, 0);
}
/* k+1 Length of MS Network Capability */
ms_net_cap_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_mm_context_ms_net_cap_len, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* (k+2) to m MS Network Capability
* The MS Network Capability coding is specified in clause 10.5.5.12 of 3GPP TS 24.008 [5].
* If Length of MS Network Capability is zero, then the MS Network Capability parameter shall not be present.
*/
if (ms_net_cap_len) {
msnt_cap_tree = proto_tree_add_subtree(tree, tvb, offset, ms_net_cap_len,
ett_gtpv2_ms_network_capability, NULL, "MS network capability");
offset += de_gmm_ms_net_cap(tvb, msnt_cap_tree, pinfo, offset, ms_net_cap_len, NULL, 0);
}
/* m+1 Length of Mobile Equipment Identity (MEI) */
mei_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_mm_context_mei_len, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* (m+2) to r Mobile Equipment Identity (MEI) */
if (mei_len) {
const gchar *mei_str;
mei_str = tvb_bcd_dig_to_wmem_packet_str( tvb, offset, mei_len, NULL, FALSE);
proto_tree_add_string(tree, hf_gtpv2_mei, tvb, offset, mei_len, mei_str);
offset += mei_len;
}
return offset;
}
static int
dissect_gtpv2_access_restriction_data(tvbuff_t *tvb, proto_tree *tree, int offset)
{
proto_tree *accrstdata_tree;
accrstdata_tree = proto_tree_add_subtree(tree, tvb, offset, 1, ett_gtpv2_access_rest_data, NULL, "Access restriction data");
/* Spare HNNA ENA INA GANA GENA UNA */
proto_tree_add_bits_item(accrstdata_tree, hf_gtpv2_spare_bits, tvb, (offset << 3), 2, ENC_BIG_ENDIAN);
proto_tree_add_item(accrstdata_tree, hf_gtpv2_hnna, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(accrstdata_tree, hf_gtpv2_ena, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(accrstdata_tree, hf_gtpv2_ina, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(accrstdata_tree, hf_gtpv2_gana, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(accrstdata_tree, hf_gtpv2_gena, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(accrstdata_tree, hf_gtpv2_una, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
return offset;
}
/* Type = 103 (decimal)
* Figure 8.38-1: GSM Key and Triplets
*/
static void
dissect_gtpv2_mm_context_gsm_t(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
proto_tree *flag_tree;
int offset;
guint8 oct, drxi, num_triplet, uamb_ri, samb_ri;
offset = 0;
flag_tree = proto_tree_add_subtree(tree, tvb, offset, 3, ett_gtpv2_mm_context_flag, NULL, "MM Context flags");
/* Octet 5 */
/* Security Mode | Spare | DRXI | CKSN */
drxi = (tvb_get_guint8(tvb, offset) & 0x08) >> 3;
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;
/* Octet 6 */
/* Number of Triplet | Spare | UAMB RI | SAMB RI */
oct = tvb_get_guint8(tvb, offset);
num_triplet = oct >> 5;
uamb_ri = (oct & 0x02) >> 1;
samb_ri = oct & 0x01;
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) + 3, 3, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_uamb_ri, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_bits_item(flag_tree, hf_gtpv2_mm_context_samb_ri, tvb, (offset << 3) + 7, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Octet 7 Spare Used Cipher */
proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, ((offset << 3)), 5, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_used_cipher, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* 8 to 15 Kc */
proto_tree_add_item(tree, hf_gtpv2_mm_context_kc, tvb, offset, 8, ENC_NA);
offset += 8;
/* 16 to h Authentication Triplet [0..4] */
if (num_triplet) {
dissect_gtpv2_authentication_triplets(tvb, tree, offset, num_triplet);
}
/*
* (h+1) to (h+2) DRX parameter
*/
if (drxi) {
proto_tree_add_item(tree, hf_gtpv2_mm_context_drx, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
}
/* Dissect octet j to r */
offset = dissect_gtpv2_mm_context_common_data(tvb, pinfo, tree, offset, samb_ri, uamb_ri);
proto_tree_add_expert_format(flag_tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, -1, "The rest of the IE not dissected yet");
}
/* Type = 104 (decimal)
* Figure 8.38-2: UMTS Key, Used Cipher and Quintuplets
*/
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_tree *flag_tree;
int offset;
guint8 oct, drxi, nr_qui, uamb_ri, samb_ri, vdp_len, hbr_len;
offset = 0;
flag_tree = proto_tree_add_subtree(tree, tvb, offset, 3, ett_gtpv2_mm_context_flag, NULL, "MM Context flags");
/* Octet 5 */
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_sm, tvb, offset, 1, ENC_BIG_ENDIAN);
drxi = (tvb_get_guint8(tvb, offset) & 0x08) >> 3;
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;
/* Octet 6 */
oct = tvb_get_guint8(tvb, offset);
nr_qui = oct >> 5;
uamb_ri = (oct & 0x02) >> 1;
samb_ri = oct & 0x01;
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) + 3, 3, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_uamb_ri, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_bits_item(flag_tree, hf_gtpv2_mm_context_samb_ri, tvb, (offset << 3) + 7, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Octet 7 Spare Used Cipher */
proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, ((offset << 3)), 5, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_used_cipher, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Octet 8 to 23 CK */
proto_tree_add_item(tree, hf_gtpv2_ck, tvb, offset, 16, ENC_NA);
offset += 16;
/* Octet 24 to 39 IK */
proto_tree_add_item(tree, hf_gtpv2_ik, tvb, offset, 16, ENC_NA);
offset += 16;
/*
* 40 to h Authentication Quintuplet [0..4]
*/
if (nr_qui) {
offset = dissect_gtpv2_authentication_quintuplets(tvb, tree, offset, nr_qui);
}
/*
* (h+1) to (h+2) DRX parameter
*/
if (drxi) {
proto_tree_add_item(tree, hf_gtpv2_mm_context_drx, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
}
/* Dissect octet j to r */
offset = dissect_gtpv2_mm_context_common_data(tvb, pinfo, tree, offset, samb_ri, uamb_ri);
/* r+1 Spare HNNA ENA INA GANA GENA UNA
* The Access restriction data is composed of UNA(UTRAN Not Allowed), GENA(GERAN Not Allowed),
* GANA(GAN Not Allowed), INA(I-HSPA-Evolution Not Allowed), ENA(E-UTRAN Not Allowed) and
* HNNA(HO-To-Non-3GPPAccess Not Allowed).
*/
if (offset < (gint)length) {
offset = dissect_gtpv2_access_restriction_data(tvb, tree, offset);
} else {
return;
}
if (offset == (gint)length) {
return;
}
/* r+2 Length of Voice Domain Preference and UE's Usage Setting */
vdp_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_mm_context_vdp_len, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* (r+3) to s Voice Domain Preference and UE's Usage Setting */
if (vdp_len) {
proto_tree_add_item(tree, hf_gtpv2_voice_domain_and_ue_usage_setting, tvb, offset, vdp_len, ENC_NA);
offset += vdp_len;
}
/* s+1 Length of Higher bitrates than 16 Mbps flag */
if (offset == (gint)length) {
hbr_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_mm_context_higher_br_16mb_flg_len, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* s+2 Higher bitrates than 16 Mbps flag */
if (hbr_len) {
proto_tree_add_item(tree, hf_gtpv2_mm_context_higher_br_16mb_flg, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += hbr_len;
}
} else {
return;
}
proto_tree_add_expert_format(flag_tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, -1, "The rest of the IE not dissected yet");
}
/* Type = 105 (decimal)
* Figure 8.38-3: GSM Key, Used Cipher and Quintuplets
*/
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_tree *flag_tree;
int offset;
guint8 oct, drxi, nr_qui, uamb_ri, samb_ri, vdp_len, hbr_len;
offset = 0;
flag_tree = proto_tree_add_subtree(tree, tvb, offset, 3, ett_gtpv2_mm_context_flag, NULL, "MM Context flags");
/* Octet 5 */
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_sm, tvb, offset, 1, ENC_BIG_ENDIAN);
drxi = (tvb_get_guint8(tvb, offset) & 0x08) >> 3;
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;
/* Octet 6 */
oct = tvb_get_guint8(tvb, offset);
nr_qui = oct >> 5;
uamb_ri = (oct & 0x02) >> 1;
samb_ri = oct & 0x01;
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) + 3, 3, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_uamb_ri, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_bits_item(flag_tree, hf_gtpv2_mm_context_samb_ri, tvb, (offset << 3) + 7, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Octet 7 Spare Used Cipher */
proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, ((offset << 3)), 5, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_used_cipher, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* 8 to 15 Kc */
proto_tree_add_item(tree, hf_gtpv2_mm_context_kc, tvb, offset, 8, ENC_NA);
offset += 8;
/*
* 40 to h Authentication Quintuplet [0..4]
*/
if (nr_qui) {
offset = dissect_gtpv2_authentication_quintuplets(tvb, tree, offset, nr_qui);
}
/*
* (h+1) to (h+2) DRX parameter
*/
if (drxi) {
proto_tree_add_item(tree, hf_gtpv2_mm_context_drx, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
}
/* Dissect octet j to r */
offset = dissect_gtpv2_mm_context_common_data(tvb, pinfo, tree, offset, samb_ri, uamb_ri);
/* r+1 Spare HNNA ENA INA GANA GENA UNA
* The Access restriction data is composed of UNA(UTRAN Not Allowed), GENA(GERAN Not Allowed),
* GANA(GAN Not Allowed), INA(I-HSPA-Evolution Not Allowed), ENA(E-UTRAN Not Allowed) and
* HNNA(HO-To-Non-3GPPAccess Not Allowed).
*/
if (offset < (gint)length) {
offset = dissect_gtpv2_access_restriction_data(tvb, tree, offset);
} else {
return;
}
if (offset == (gint)length) {
return;
}
/* r+2 Length of Voice Domain Preference and UE's Usage Setting */
vdp_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_mm_context_vdp_len, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* (r+3) to s Voice Domain Preference and UE's Usage Setting */
if (vdp_len) {
proto_tree_add_item(tree, hf_gtpv2_voice_domain_and_ue_usage_setting, tvb, offset, vdp_len, ENC_NA);
offset += vdp_len;
}
/* s+1 Length of Higher bitrates than 16 Mbps flag */
if (offset < (gint)length) {
hbr_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_mm_context_higher_br_16mb_flg_len, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* s+2 Higher bitrates than 16 Mbps flag */
if (hbr_len) {
proto_tree_add_item(tree, hf_gtpv2_mm_context_higher_br_16mb_flg, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += hbr_len;
}
} else {
return;
}
proto_tree_add_expert_format(flag_tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, -1, "The rest of the IE not dissected yet");
}
/* Type = 106 (decimal)
* Figure 8.38-4: UMTS Key and Quintuplets
*/
static void
dissect_gtpv2_mm_context_utms_q(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 *flag_tree;
int offset;
guint8 oct, drxi, nr_qui, uamb_ri, samb_ri, vdp_len, hbr_len;
offset = 0;
flag_tree = proto_tree_add_subtree(tree, tvb, offset, 3, ett_gtpv2_mm_context_flag, NULL, "MM Context flags");
/* Octet 5 */
/* Security Mode Spare DRXI KSI */
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);
drxi = (tvb_get_guint8(tvb, offset) & 0x08) >> 3;
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;
/* Octet 6 */
/* Number of Quintuplets Spare UAMB RI SAMB RI */
oct = tvb_get_guint8(tvb, offset);
nr_qui = oct >> 5;
uamb_ri = (oct & 0x02) >> 1;
samb_ri = oct & 0x01;
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) + 3, 3, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_uamb_ri, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_bits_item(flag_tree, hf_gtpv2_mm_context_samb_ri, tvb, (offset << 3) + 7, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Octet 7 Spare */
proto_tree_add_item(flag_tree, hf_gtpv2_spare, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Octet 8 to 23 CK */
proto_tree_add_item(tree, hf_gtpv2_ck, tvb, offset, 16, ENC_NA);
offset += 16;
/* Octet 24 to 39 IK */
proto_tree_add_item(tree, hf_gtpv2_ik, tvb, offset, 16, ENC_NA);
offset += 16;
/*
* 40 to h Authentication Quintuplet [0..4]
*/
if (nr_qui) {
offset = dissect_gtpv2_authentication_quintuplets(tvb, tree, offset, nr_qui);
}
/*
* (h+1) to (h+2) DRX parameter
*/
if (drxi) {
proto_tree_add_item(tree, hf_gtpv2_mm_context_drx, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
}
/* Dissect octet j to r */
offset = dissect_gtpv2_mm_context_common_data(tvb, pinfo, tree, offset, samb_ri, uamb_ri);
/* r+1 Spare HNNA ENA INA GANA GENA UNA
* The Access restriction data is composed of UNA(UTRAN Not Allowed), GENA(GERAN Not Allowed),
* GANA(GAN Not Allowed), INA(I-HSPA-Evolution Not Allowed), ENA(E-UTRAN Not Allowed) and
* HNNA(HO-To-Non-3GPPAccess Not Allowed).
*/
if (offset < (gint)length) {
offset = dissect_gtpv2_access_restriction_data(tvb, tree, offset);
} else {
return;
}
if (offset == (gint)length) {
return;
}
/* r+2 Length of Voice Domain Preference and UE's Usage Setting */
vdp_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_mm_context_vdp_len, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* (r+3) to s Voice Domain Preference and UE's Usage Setting */
if (vdp_len) {
proto_tree_add_item(tree, hf_gtpv2_voice_domain_and_ue_usage_setting, tvb, offset, vdp_len, ENC_NA);
offset += vdp_len;
}
/* s+1 Length of Higher bitrates than 16 Mbps flag */
if (offset < (gint)length) {
hbr_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_mm_context_higher_br_16mb_flg_len, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* s+2 Higher bitrates than 16 Mbps flag */
if (hbr_len) {
proto_tree_add_item(tree, hf_gtpv2_mm_context_higher_br_16mb_flg, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += hbr_len;
}
} else {
return;
}
/* (s+3) to (n+4) These octet(s) is/are present only if explicitly specified */
proto_tree_add_expert_format(flag_tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, -1, "The rest of the IE not dissected yet");
}
/* 8.38 MM Context
* Type = 107 (decimal)
* Figure 8.38-5: 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, guint8 message_type _U_, guint8 instance _U_)
{
proto_item *qua_item, *qui_item;
proto_tree *flag_tree, *qua_tree, *qui_tree;
gint offset;
guint8 tmp, nhi, drxi, nr_qua, nr_qui, uamb_ri, samb_ri, vdp_len;
offset = 0;
flag_tree = proto_tree_add_subtree(tree, tvb, offset, 3, ett_gtpv2_mm_context_flag, NULL, "MM Context flags");
/* 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.
*/
tmp = tvb_get_guint8(tvb, offset);
nhi = (tmp & 0x10) >> 4;
drxi = (tmp & 0x08) >> 3;
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 |
*/
tmp = tvb_get_guint8(tvb, offset);
nr_qui = (tmp & 0xe0) >> 5;
nr_qua = tmp & 0x1c;
nr_qua >>= 2;
uamb_ri = (tmp & 0x2) >> 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);
/* UAMB RI */
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_uamb_ri, tvb, offset, 1, ENC_BIG_ENDIAN);
/* OSCI */
proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_osci, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Octet 7 SAMB RI Used NAS integrity protection algorithm Used NAS Cipher*/
/* SAMB RI */
samb_ri = tvb_get_guint8(tvb, offset) >> 7;
proto_tree_add_bits_item(flag_tree, hf_gtpv2_mm_context_samb_ri, tvb, offset << 3, 1, ENC_BIG_ENDIAN);
/* 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(tree, hf_gtpv2_mm_context_nas_dl_cnt, tvb, offset, 3, ENC_BIG_ENDIAN);
offset += 3;
/* Octet 11-13 NAS Uplink Count */
proto_tree_add_item(tree, hf_gtpv2_mm_context_nas_ul_cnt, tvb, offset, 3, ENC_BIG_ENDIAN);
offset += 3;
/* Octet 14-45 */
proto_tree_add_item(tree, hf_gtpv2_mm_context_kasme, tvb, offset, 32, ENC_NA);
offset += 32;
qua_item = proto_tree_add_uint(tree, hf_gtpv2_authentication_quadruplets, tvb, offset, 0, nr_qua);
if ( nr_qua ){
qua_tree = proto_item_add_subtree(qua_item, ett_gtpv2_qua);
offset = dissect_gtpv2_authentication_quadruplets(tvb, qua_tree, offset, nr_qua);
}else {
PROTO_ITEM_SET_GENERATED(qua_item);
}
qui_item = proto_tree_add_uint(tree, hf_gtpv2_authentication_quintuplets, tvb, offset, 0, nr_qui);
if (nr_qui) {
qui_tree = proto_item_add_subtree(qui_item, ett_gtpv2_qui);
offset = dissect_gtpv2_authentication_quintuplets(tvb, qui_tree, offset, nr_qui);
}else{
PROTO_ITEM_SET_GENERATED(qui_item);
}
/* (h+1) to (h+2) DRX parameter */
if (drxi) {
proto_tree_add_item(tree, hf_gtpv2_mm_context_drx, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
}
/* Octet p to p+31 & Octet p+32 */
if ( nhi )
{
proto_tree_add_item(tree, hf_gtpv2_mm_context_nh, tvb, offset, 32, ENC_NA);
offset += 32;
proto_tree_add_item(tree, hf_gtpv2_mm_context_ncc, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
}
/* Dissect octet j to r */
offset = dissect_gtpv2_mm_context_common_data(tvb, pinfo, tree, offset, samb_ri, uamb_ri);
/* r+1 Spare HNNA ENA INA GANA GENA UNA */
if (offset < (gint)length) {
offset = dissect_gtpv2_access_restriction_data(tvb, tree, offset);
} else {
return;
}
if (offset == (gint)length) {
return;
}
/* r+2 Length of Voice Domain Preference and UE's Usage Setting */
vdp_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_mm_context_vdp_len, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* (r+3) to s Voice Domain Preference and UE's Usage Setting */
if (vdp_len) {
proto_tree_add_item(tree, hf_gtpv2_voice_domain_and_ue_usage_setting, tvb, offset, vdp_len, ENC_NA);
/*offset += vdp_len;*/
}
}
/*
* Type = 108 (decimal)
* Figure 8.38-6: UMTS Key, Quadruplets and Quintuplets
*/
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_tree *flag_tree;
guint32 offset;
guint8 tmp, drxi, nr_qua, nr_qui, uamb_ri, samb_ri, vdp_length;
offset = 0;
flag_tree = proto_tree_add_subtree(tree, tvb, offset, 3, ett_gtpv2_mm_context_flag, NULL, "MM Context flags");
/* Octet 5
* Security Mode Spare DRXI KSIASME
*/
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);
drxi = (tvb_get_guint8(tvb, offset) & 0x08) >> 3;
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 | SAMB
* Quintuplets | Quadruplet | RI | RI
*/
tmp = tvb_get_guint8(tvb, offset);
nr_qui = (tmp & 0xe0) >> 5;
nr_qua = tmp & 0x1c;
nr_qua >>= 2;
uamb_ri = (tmp & 0x2) >> 1;
samb_ri = tmp & 0x01;
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_mm_context_uamb_ri, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_bits_item(flag_tree, hf_gtpv2_mm_context_samb_ri, tvb, (offset << 3) + 7, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Octet 7 Spare */
proto_tree_add_item(flag_tree, hf_gtpv2_spare, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Octet 8 to 23 CK */
proto_tree_add_item(tree, hf_gtpv2_ck, tvb, offset, 16, ENC_NA);
offset += 16;
/* Octet 24 to 39 IK */
proto_tree_add_item(tree, hf_gtpv2_ik, tvb, offset, 16, ENC_NA);
offset += 16;
if ( nr_qua ) {
offset = dissect_gtpv2_authentication_quadruplets(tvb, tree, offset, nr_qua);
}
if (nr_qui) {
offset = dissect_gtpv2_authentication_quintuplets(tvb, tree, offset, nr_qui);
}
/* (h+1) to (h+2) DRX parameter */
if (drxi) {
proto_tree_add_item(tree, hf_gtpv2_mm_context_drx, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
}
/* Dissect octet j to r */
offset = dissect_gtpv2_mm_context_common_data(tvb, pinfo, tree, offset, samb_ri, uamb_ri);
if (offset >= (guint32)length) {
return;
}
/* r+1 Spare HNNA ENA INA GANA GENA UNA */
offset = dissect_gtpv2_access_restriction_data(tvb, tree, offset);
if (offset >= (guint32)length) {
return;
}
/* The Voice Domain Preference and UE's Usage Setting coding is specified in clause 10.5.5.28 of 3GPP TS 24.008 [5]. If
* Length of Voice Domain Preference and UE's Usage Setting is zero, then the Voice Domain Preference and UE's Usage
* Setting parameter shall not be present.
*/
vdp_length = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_vdp_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
if(vdp_length !=0){
offset += de_gmm_voice_domain_pref(tvb, tree, pinfo, offset, vdp_length, NULL, 0);
}
if (offset < (guint32)length) {
proto_tree_add_expert_format(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, -1, "The rest of the IE not dissected yet");
}
}
/*
* 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_length(tvb, offset, 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;
int offset = 0;
nsapi = (tvb_get_guint8(tvb, offset) & 0x08);
nsapi_ti = proto_tree_add_item(tree, hf_gtpv2_nsapi08, tvb, offset, 1, ENC_BIG_ENDIAN);
nsapi_tree = proto_item_add_subtree(nsapi_ti, ett_gtpv2_pdn_numbers_nsapi);
proto_tree_add_bits_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 += 1;
proto_tree_add_item(tree, hf_gtpv2_dl_gtp_u_sequence_number, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_gtpv2_ul_gtp_u_sequence_number, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_gtpv2_send_n_pdu_number, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_gtpv2_receive_n_pdu_number, tvb, offset, 2, ENC_BIG_ENDIAN);
}
/*
* 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(wmem_packet_scope(), 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(wmem_packet_scope(), 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_item(tree, hf_gtpv2_hop_counter, tvb, offset, 1, ENC_BIG_ENDIAN);
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 += 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_wmem_packet_str(tvb, pinfo, tree, 0, E212_NONE, TRUE);
offset += 3;
trace_id = tvb_get_ntohs(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_trace_id, tvb, offset, 3, ENC_BIG_ENDIAN);
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, 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 += 1;
/* Add the Complete Request Message */
new_tvb = tvb_new_subset(tvb, offset, length-1, length-1);
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, E212_NONE, 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 += 1;
proto_tree_add_item(tree, hf_gtpv2_m_tmsi, tvb, offset, 4, ENC_NA);
}
/*
* 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 *new_tvb;
proto_tree *sub_tree;
int offset = 0;
guint8 container_type;
guint8 container_flags, xid_len;
/* 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 += 1;
if ( (message_type == GTPV2_FORWARD_RELOCATION_REQ)
|| (message_type == GTPV2_CONTEXT_RESPONSE)
|| (message_type == GTPV2_RAN_INFORMATION_RELAY)) {
switch (container_type) {
case 1:
/* UTRAN transparent container (1)
* Contains the "Source to Target
* Transparent Container", if the message is used for PS
* handover to UTRAN Iu mode procedures, SRNS relocation
* procedure and E-UTRAN to UTRAN inter RAT handover
* procedure.
*/
sub_tree = proto_tree_add_subtree(tree, tvb, offset, length, ett_gtpv2_utran_con, NULL, "UTRAN transparent container");
new_tvb = tvb_new_subset_remaining(tvb, offset);
dissect_ranap_Source_ToTarget_TransparentContainer_PDU(new_tvb, pinfo, sub_tree, NULL);
return;
case 2:
/* BSS container */
sub_tree = proto_tree_add_subtree(tree, tvb, offset, length, ett_gtpv2_bss_con, NULL, "BSS container");
/* The flags PFI, RP, SAPI and PHX in octet 6 indicate the corresponding type of paratemer */
proto_tree_add_item(sub_tree, hf_gtpv2_bss_container_phx, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(sub_tree, hf_gtpv2_bss_con_sapi_flg, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(sub_tree, hf_gtpv2_bss_con_rp_flg, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(sub_tree, hf_gtpv2_bss_con_pfi_flg, tvb, offset, 1, ENC_BIG_ENDIAN);
container_flags = tvb_get_guint8(tvb, offset);
offset += 1;
if ((container_flags & 0x01) == 1) {
/* Packet Flow ID present */
proto_tree_add_item(sub_tree, hf_gtpv2_bss_con_pfi, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
}
if (((container_flags & 0x04) == 4) || ((container_flags & 0x02) == 2)) {
if ((container_flags & 0x04) == 4) {
/* SAPI present */
proto_tree_add_item(sub_tree, hf_gtpv2_bss_con_sapi, tvb, offset, 1, ENC_BIG_ENDIAN);
}
if ((container_flags & 0x02) == 2) {
/* Radio Priority present */
proto_tree_add_item(sub_tree, hf_gtpv2_bss_con_rp, tvb, offset, 1, ENC_BIG_ENDIAN);
}
offset += 1;
}
if ((container_flags & 0x08) == 8) {
/* XiD parameters length is present in Octet c.
* XiD parameters are present in Octet d to n.
*/
xid_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(sub_tree, hf_gtpv2_bss_con_xid_len, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(sub_tree, hf_gtpv2_bss_con_xid, tvb, offset, xid_len, ENC_NA);
}
return;
case 3:
/* E-UTRAN transparent container
* This IE shall be included to contain the "Source to Target
* Transparent Container", if the message is used for
* UTRAN/GERAN to E-UTRAN inter RAT handover
* procedure, E-UTRAN intra RAT handover procedure and
* 3G SGSN to MME combined hard handover and SRNS
* relocation procedure. The Container Type shall be set to 3.
*/
sub_tree = proto_tree_add_subtree(tree, tvb, offset, length, ett_gtpv2_eutran_con, NULL, "E-UTRAN transparent container");
proto_tree_add_expert(sub_tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, length - offset);
return;
default:
break;
}
}
if (message_type == GTPV2_FORWARD_CTX_NOTIFICATION) {
switch (container_type) {
case 3:
/* E-UTRAN transparent container */
new_tvb = tvb_new_subset_remaining(tvb, offset);
dissect_s1ap_ENB_StatusTransfer_TransparentContainer_PDU(new_tvb, pinfo, tree, NULL);
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_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, length-offset);
}
/*
* 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_s1ap_cause(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, guint8 cause_type)
{
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;
}
static void
dissect_gtpv2_F_cause(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, guint16 length, guint8 message_type, guint8 instance)
{
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 += 1;
dissect_gtpv2_s1ap_cause(tvb, pinfo, tree, offset, cause_type);
return;
case 1:
proto_item_append_text(item, "[RANAP Cause]");
break;
case 2:
proto_item_append_text(item, "[BSSGP Cause]");
break;
default:
break;
}
}
else if (message_type == GTPV2_FORWARD_RELOCATION_RESP) {
/* Table 7.3.2-1: Information Elements in a Forward Relocation Response */
switch (instance) {
case 0:
/* Instance 0 S1-AP Cause */
proto_item_append_text(item, "[S1-AP Cause]");
proto_tree_add_item(tree, hf_gtpv2_cause_type, tvb, offset, 1, ENC_BIG_ENDIAN);
cause_type = tvb_get_guint8(tvb, offset);
offset++;
dissect_gtpv2_s1ap_cause(tvb, pinfo, tree, offset, cause_type);
return;
case 1:
/* Instance 1 RANAP Cause */
proto_item_append_text(item, "[RANAP Cause]");
break;
case 2:
/* Instance 2 BSSGP Cause */
proto_item_append_text(item, "[BSSGP Cause]");
break;
default:
break;
}
}/* GTPV2_FORWARD_RELOCATION_RESP */
proto_tree_add_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, length-offset);
}
/*
* 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).
*
* 8 7 6 5 4 3 2 1
* +--+--+--+--+--+--+--+--+
* Octet 5 |MCC digit 2|MCC digit 1|
* +--+--+--+--+--+--+--+--+
* Octet 6 |MNC digit 1|MCC digit 3|
* +--+--+--+--+--+--+--+--+
* Octet 7 |MNC digit 3|MNC digit 2|
* +--+--+--+--+--+--+--+--+
*/
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_wmem_packet_str(tvb, pinfo, tree, 0, E212_NONE, FALSE);
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 gchar*
dissect_gtpv2_macro_enodeb_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int *offset)
{
gchar *str = NULL;
gchar *mcc_mnc_str;
guint32 macro_enodeb_id;
mcc_mnc_str = dissect_e212_mcc_mnc_wmem_packet_str(tvb, pinfo, tree, *offset, E212_NONE, 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.
*/
macro_enodeb_id = tvb_get_ntoh24(tvb, *offset) & 0x0fffff;
proto_tree_add_item(tree, hf_gtpv2_macro_enodeb_id, tvb, *offset, 3, ENC_BIG_ENDIAN);
*offset += 3;
str = wmem_strdup_printf(wmem_packet_scope(), "%s, Macro eNodeB ID 0x%x",
mcc_mnc_str,
macro_enodeb_id);
return str;
}
static gchar*
dissect_gtpv2_home_enodeb_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int *offset)
{
gchar *str = NULL;
gchar *mcc_mnc_str;
guint32 home_enodeb_id;
mcc_mnc_str = dissect_e212_mcc_mnc_wmem_packet_str(tvb, pinfo, tree, *offset, E212_NONE, TRUE);
*offset += 3;
/* Octet 10 to 12 Home eNodeB ID
* The Home eNodeB ID consists of 28 bits. See 3GPP TS 36.413 [10].
* Bit 4 of Octet 9 is the most significant bit and bit 1 of Octet 12 is the least significant bit.
* The coding of the Home eNodeB ID is the responsibility of each administration.
* Coding using full hexadecimal representation shall be used.
*/
home_enodeb_id = tvb_get_ntohl(tvb, *offset) & 0x0fffffff;
proto_tree_add_item(tree, hf_gtpv2_home_enodeb_id, tvb, *offset, 4 , ENC_BIG_ENDIAN);
*offset += 4;
str = wmem_strdup_printf(wmem_packet_scope(), "%s, Home eNodeB ID 0x%x",
mcc_mnc_str,
home_enodeb_id);
return str;
}
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 *new_tvb;
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 += 1;
switch (target_type) {
case 0:
new_tvb = tvb_new_subset_remaining(tvb, offset);
dissect_e212_mcc_mnc(new_tvb, pinfo, tree, 0, E212_NONE, TRUE);
offset += 3;
/* LAC */
proto_tree_add_item(tree, hf_gtpv2_lac, tvb, offset, 2, ENC_BIG_ENDIAN);
offset+=2;
/* RAC (see NOTE 3) */
proto_tree_add_item(tree, hf_gtpv2_rac, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* 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).
*/
proto_tree_add_item(tree, hf_gtpv2_rnc_id, tvb, offset, 2, ENC_BIG_ENDIAN);
/* If the optional Extended RNC-ID is not included, then the length variable 'n' = 8 and the overall length of the IE is 11
* octets. Otherwise, 'n' = 10 and the overall length of the IE is 13 octets
*/
if(length == 11){
proto_tree_add_item(tree, hf_gtpv2_ext_rnc_id, tvb, offset, 2, ENC_BIG_ENDIAN);
}
return;
case 1:
/* Macro eNodeB ID*/
dissect_gtpv2_macro_enodeb_id(tvb, pinfo, tree, &offset);
/* Tracking Area Code (TAC) */
proto_tree_add_item(tree, hf_gtpv2_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].
*/
new_tvb = tvb_new_subset_remaining(tvb, offset);
de_bssgp_cell_id(new_tvb, tree, pinfo, 0, 0/* not used */, NULL, 0);
return;
case 3:
/* Home eNodeB ID */
dissect_gtpv2_home_enodeb_id(tvb, pinfo, tree, &offset);
/* Octet 13 to 14 Tracking Area Code (TAC) */
proto_tree_add_item(tree, hf_gtpv2_tac, tvb, offset, 2 , ENC_BIG_ENDIAN);
return;
default:
break;
}
proto_tree_add_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, length-offset);
}
/*
* 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 += 1;
/* Packet Flow ID */
proto_tree_add_item(tree, hf_gtpv2_packet_flow_id, tvb, offset, length, ENC_NA);
}
/*
* 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;
/* 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);
offset++;
/* 6 to 7 DL GTP-U Sequence Number */
proto_tree_add_item(tree, hf_gtpv2_dl_gtp_u_sequence_number, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
/* 8 to 9 UL GTP-U Sequence Number */
proto_tree_add_item(tree, hf_gtpv2_ul_gtp_u_sequence_number, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
/* 10 to 11 DL PDCP Sequence Number */
proto_tree_add_item(tree, hf_gtpv2_dl_pdcp_sequence_number, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
/* 12 to 13 UL PDCP Sequence Number */
proto_tree_add_item(tree, hf_gtpv2_ul_pdcp_sequence_number, tvb, offset, 2, ENC_BIG_ENDIAN);
}
/*
* 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_item(tree, hf_gtpv2_rrc_container, tvb, 0, length, ENC_NA);
}
/*
* 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_item(tree, hf_gtpv2_upd_source_port_number, tvb, 0, 2, ENC_BIG_ENDIAN);
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}
};
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_const(ss_mode, gtpv2_selec_mode_vals, "Unknown"));
}
/*
* 8.59 Source Identification
*/
#if 0
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}
};
#endif
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_)
{
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 += 1;
/* 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);
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:
proto_tree_add_expert(tree, pinfo, &ei_gtpv2_source_type_unknown, tvb, offset-1, 1);
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_const(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_const(action, gtpv2_cng_rep_act_vals, "Unknown"));
}
/*
* 8.62 Fully qualified PDN Connection Set Identifier (FQ-CSID)
*/
#if 0
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}
};
#endif
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_)
{
int offset = 0;
guint8 octet, node_id_type, csids;
/* 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 += 1;
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_NA);
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.
*/
proto_tree_add_item(tree, hf_gtpv2_fq_csid_node_id, tvb, offset, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_fq_csid_mcc_mnc, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
break;
default:
proto_tree_add_expert_format(tree, pinfo, &ei_gtpv2_fq_csid_type_bad, tvb, offset-1, 1,
"Wrong Node-ID Type %u, should be 0-2(Or this is a newer spec)", node_id_type);
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_const(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_string_enc(wmem_packet_scope(), tvb, offset + 1, length - 1, ENC_ASCII);
for (;;) {
if (name_len >= length - 1)
break;
tmp = name_len;
name_len = name_len + fqdn[tmp] + 1;
fqdn[tmp] = '.';
}
} else {
fqdn = tvb_get_string_enc(wmem_packet_scope(), tvb, offset, length, ENC_ASCII);
}
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)
{
int offset = 0;
tvbuff_t *next_tvb;
guint16 ext_id;
/* oct 5 -7 Enterprise ID */
ext_id = tvb_get_ntohs(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_enterprise_id, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_item_append_text(item, "%s (%u)", val_to_str_ext_const(ext_id, &sminmpec_values_ext, "Unknown"), ext_id);
next_tvb = tvb_new_subset_length(tvb, offset, length-2);
if (dissector_try_uint_new(gtpv2_priv_ext_dissector_table, ext_id, next_tvb, pinfo, tree, FALSE, GUINT_TO_POINTER((guint32)instance))){
return;
}
proto_tree_add_item(tree, hf_gtpv2_proprietary_value, tvb, offset, length-2, ENC_NA);
}
/*
* 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_NA);
}
/*
* 8.69 MBMS Session Duration
*/
void
dissect_gtpv2_mbms_session_duration(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;
int bit_offset = 0;
guint32 days;
guint32 hours;
guint32 minutes;
guint32 seconds;
guint32 durations_seconds;
proto_item *day_item, *sec_item;
/* From 3GPP TS 29.061 17.7.7 MBMS-Session-Duration AVP */
/* Bits: ssss ssss ssss ssss sddd dddd where s bits = seconds, d bits = days */
durations_seconds = tvb_get_bits32(tvb, bit_offset, 17, ENC_BIG_ENDIAN);
bit_offset += 17;
days = tvb_get_bits32(tvb, bit_offset, 7, ENC_BIG_ENDIAN);
/* The lowest value of this AVP (i.e. all 0:s) is reserved to indicate an indefinite value to denote sessions that are expected to be always-on. */
if ((durations_seconds == 0) && (days == 0)) {
day_item = proto_tree_add_item(tree, hf_gtpv2_mbms_session_duration_days, tvb, offset, 3, ENC_BIG_ENDIAN);
sec_item = proto_tree_add_item(tree, hf_gtpv2_mbms_session_duration_secs, tvb, offset, 3, ENC_BIG_ENDIAN);
proto_item_append_text(item, "Indefinite (always-on)");
} else {
hours = durations_seconds / 3600;
minutes = (durations_seconds % 3600) / 60;
seconds = (durations_seconds % 3600) % 60;
day_item = proto_tree_add_item(tree, hf_gtpv2_mbms_session_duration_days, tvb, offset, 3, ENC_BIG_ENDIAN);
sec_item = proto_tree_add_item(tree, hf_gtpv2_mbms_session_duration_secs, tvb, offset, 3, ENC_BIG_ENDIAN);
proto_item_append_text(item, "%d days %02d:%02d:%02d (DD days HH:MM:SS)", days, hours, minutes, seconds);
}
/* Maximum allowed value for days: 18.
* Maximum allowed value for seconds: 86,400 */
if (days > 18) {
expert_add_info(pinfo, day_item, &ei_gtpv2_mbms_session_duration_days);
}
if (durations_seconds > 86400) {
expert_add_info(pinfo, sec_item, &ei_gtpv2_mbms_session_duration_secs);
}
offset += 3;
if (length > 3)
proto_tree_add_item(tree, hf_gtpv2_spare_bytes, tvb, offset, length-3, ENC_NA);
}
/*
* 8.70 MBMS Service Area
*/
void
dissect_gtpv2_mbms_service_area(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;
proto_item *sai_item;
guint8 binary_nr;
guint16 real_nr;
guint16 sai;
binary_nr = tvb_get_guint8(tvb, offset);
real_nr = (guint16)binary_nr + 1;
/* 3GPP TS 29.061 17.7.6 MBMS-Service-Area AVP */
proto_tree_add_uint(tree, hf_gtpv2_mbms_service_area_nr, tvb, offset, 1, real_nr);
offset += 1;
/* A consecutive list of MBMS Service Area Identities follow, each with a length of two octets. */
while (offset < length) {
/* 3GPP TS 23.003 15.3 Structure of MBMS SAI */
sai = tvb_get_ntohs(tvb, offset);
sai_item = proto_tree_add_item(tree, hf_gtpv2_mbms_service_area_id, tvb, offset, 2, ENC_BIG_ENDIAN);
/* The value 0 denotes the whole of PLMN as the MBMS Service Area */
if (sai == 0) {
proto_item_append_text(sai_item, " Entire PLMN");
}
proto_item_append_text(item, " %u", sai);
offset += 2;
}
}
/*
* 8.71 MBMS Session Identifier
*/
static void
dissect_gtpv2_mbms_session_id(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;
/* One octet OctetString. */
proto_tree_add_item(tree, hf_gtpv2_mbms_session_id, tvb, offset, 1, ENC_NA);
offset += 1;
if (length > 1)
proto_tree_add_item(tree, hf_gtpv2_spare_bytes, tvb, offset, length-1, ENC_NA);
}
/*
* 8.72 MBMS Flow Identifier
*/
static void
dissect_gtpv2_mbms_flow_id(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;
/* Two octets OctetString. */
proto_tree_add_item(tree, hf_gtpv2_mbms_flow_id, tvb, offset, 2, ENC_NA);
proto_item_append_text(item, " %s", tvb_bytes_to_str(wmem_packet_scope(), tvb, offset, 2));
offset += 2;
if (length > 2)
proto_tree_add_item(tree, hf_gtpv2_spare_bytes, tvb, offset, length-2, ENC_NA);
}
/*
* 8.73 MBMS IP Multicast Distribution
*/
static const value_string gtpv2_mbms_hc_indicator_vals[] = {
{0, "Uncompressed header"},
{1, "Compressed header"},
{0, NULL}
};
static void
dissect_gtpv2_mbms_ip_mc_dist(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;
proto_tree_add_item(tree, hf_gtpv2_cteid, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_gtpv2_ip_addr_type, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_ip_addr_len, tvb, offset, 1, ENC_BIG_ENDIAN);
/* IP Multicast Distribution Address */
if ((tvb_get_guint8(tvb, offset) & 0x3f) == 4) {
offset += 1;
proto_tree_add_item(tree, hf_gtpv2_mbms_ip_mc_dist_addrv4, tvb, offset, 4, ENC_BIG_ENDIAN);
proto_item_append_text(item, " IPv4 Dist %s", tvb_ip_to_str(tvb, offset));
offset += 4;
} else if ((tvb_get_guint8(tvb, offset) & 0x3f) == 16) {
offset += 1;
proto_tree_add_item(tree, hf_gtpv2_mbms_ip_mc_dist_addrv6, tvb, offset, 16, ENC_NA);
proto_item_append_text(item, " IPv6 Dist %s", tvb_ip6_to_str(tvb, offset));
offset += 16;
}
proto_tree_add_item(tree, hf_gtpv2_ip_addr_type, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_ip_addr_len, tvb, offset, 1, ENC_BIG_ENDIAN);
/* IP Multicast Source Address */
if ((tvb_get_guint8(tvb, offset) & 0x3f) == 4) {
offset += 1;
proto_tree_add_item(tree, hf_gtpv2_mbms_ip_mc_src_addrv4, tvb, offset, 4, ENC_BIG_ENDIAN);
proto_item_append_text(item, " IPv4 Src %s", tvb_ip_to_str(tvb, offset));
offset += 4;
} else if ((tvb_get_guint8(tvb, offset) & 0x3f) == 16) {
offset += 1;
proto_tree_add_item(tree, hf_gtpv2_mbms_ip_mc_src_addrv6, tvb, offset, 16, ENC_NA);
proto_item_append_text(item, " IPv6 Src %s", tvb_ip6_to_str(tvb, offset));
offset += 16;
}
proto_tree_add_item(tree, hf_gtpv2_mbms_hc_indicator, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
if (length > offset)
proto_tree_add_item(tree, hf_gtpv2_spare_bytes, tvb, offset, length-offset, ENC_NA);
}
/*
* 8.74 MBMS Distribution Acknowledge
*/
static const value_string gtpv2_mbms_dist_indication_vals[] = {
{0, "No RNCs have accepted IP multicast distribution"},
{1, "All RNCs have accepted IP multicast distribution"},
{2, "Some RNCs have accepted IP multicast distribution"},
{3, "Spare. For future use."},
{0, NULL}
};
static void
dissect_gtpv2_mbms_dist_ack(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_mbms_dist_indication, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
if (length > 1)
proto_tree_add_item(tree, hf_gtpv2_spare_bytes, tvb, offset, length-1, ENC_NA);
}
/*
* 8.75 User CSG Information (UCI)
*/
static const value_string gtpv2_uci_csg_membership_status[] = {
{0, "Non CSG membership"},
{1, "CSG membership"},
{0, NULL }
};
static const value_string gtpv2_uci_access_mode[] = {
{0, "Closed Mode"},
{1, "Hybrid Mode"},
{2, "Reserved" },
{3, "Reserved"},
{0, NULL }
};
static const value_string gtpv2_uci_leave_csg[] = {
{0, "Access CSG cell/Hybrid cell"},
{1, "Leaves CSG cell/Hybrid cell"},
{0, NULL }
};
static void
dissect_gtpv2_uci(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;
/* Value of MCC & MNC */
dissect_e212_mcc_mnc(tvb, pinfo, tree, 0, E212_NONE, TRUE);
offset += 3;
/* Value of CSG ID */
proto_tree_add_item(tree, hf_gtpv2_uci_csg_id_spare, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_uci_csg_id, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
/* Value of access mode */
proto_tree_add_item(tree, hf_gtpv2_uci_access_mode, tvb, offset, 1, ENC_BIG_ENDIAN);
/* Value of LCSG */
proto_tree_add_item(tree, hf_gtpv2_uci_lcsg, tvb, offset, 1, ENC_BIG_ENDIAN);
/* Value of CSG membership */
proto_tree_add_item(tree, hf_gtpv2_uci_csg_membership, tvb, offset, 1, ENC_BIG_ENDIAN);
}
/* 8.76 CSG Information Reporting Action */
static void
dissect_gtpv2_csg_info_rep_action(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
proto_tree_add_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, 0, length);
}
/* 8.77 RFSP Index */
static void
dissect_gtpv2_rfsp_index(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;
if(instance == 0){
proto_tree_add_item(tree, hf_gtpv2_subscriber_rfsp, tvb, offset, 2, ENC_BIG_ENDIAN);
}else if(instance == 1){
proto_tree_add_item(tree, hf_gtpv2_rfsp_inuse, tvb, offset, 2, ENC_BIG_ENDIAN);
}
}
/* 8.78 CSG ID */
static void
dissect_gtpv2_csg_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
proto_tree_add_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, 0, length);
}
/* 8.79 CSG Membership Indication (CMI) */
static void
dissect_gtpv2_cmi(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
proto_tree_add_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, 0, length);
}
/* 8.80 Service indicator */
static void
dissect_gtpv2_service_indicator(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
proto_tree_add_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, 0, length);
}
/* 8.81 Detach Type */
static void
dissect_gtpv2_detach_type(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
proto_tree_add_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, 0, length);
}
/* 8.82 Local Distinguished Name (LDN) */
static void
dissect_gtpv2_ldn(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
proto_tree_add_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, 0, length);
}
/* 8.83 Node Features */
static void
dissect_gtpv2_node_features(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_node_features_prn, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_node_features_mabr, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_node_features_ntsr, tvb, offset, 1, ENC_BIG_ENDIAN);
offset+=1;
if (length > 1)
proto_tree_add_item(tree, hf_gtpv2_spare_bytes, tvb, offset, length-1, ENC_NA);
}
/* 8.84
* MBMS Time to Data Transfer
*/
void
dissect_gtpv2_mbms_time_to_data_xfer(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 binary_secs;
guint16 real_secs;
binary_secs = tvb_get_guint8(tvb, offset);
real_secs = (guint16)binary_secs + 1;
proto_tree_add_string_format_value(tree, hf_gtpv2_time_to_data_xfer, tvb, offset, 1, "", "%d second(s)", real_secs);
proto_item_append_text(item, " %u second(s)", real_secs);
offset += 1;
if (length > 1)
proto_tree_add_item(tree, hf_gtpv2_spare_bytes, tvb, offset, length-1, ENC_NA);
}
static const value_string gtpv2_throttling_delay_unit_vals[] = {
{ 0, "value is incremented in multiples of 2 seconds" },
{ 1, "value is incremented in multiples of 1 minute" },
{ 2, "value is incremented in multiples of 10 minutes" },
{ 3, "value is incremented in multiples of 1 hour" },
{ 4, "value is incremented in multiples of 10 hour" },
{ 7, "value indicates that the timer is deactivated" },
{ 0, NULL }
};
/* 8.85 Throttling */
static void
dissect_gtpv2_throttling(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 oct;
proto_tree_add_item(tree, hf_gtpv2_throttling_delay_unit, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_throttling_delay_value, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
oct = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_throttling_factor, tvb, offset, 1, ENC_BIG_ENDIAN);
if (oct > 0x64)
proto_item_append_text(item, "Throttling factor: value beyond (0,100) is considered as 0");
offset++;
if (length > 2)
proto_tree_add_item(tree, hf_gtpv2_spare_bytes, tvb, offset, length - 2, ENC_NA);
}
/* 8.86 Allocation/Retention Priority (ARP) */
void
dissect_gtpv2_arp(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_arp_pvi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_arp_pl, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_arp_pci, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
if (length > 1)
proto_tree_add_item(tree, hf_gtpv2_spare_bytes, tvb, offset, length-1, ENC_NA);
}
/* 8.87 EPC Timer */
static const value_string gtpv2_timer_unit_vals[] = {
{0, "value is incremented in multiples of 2 seconds"},
{1, "value is incremented in multiples of 1 minute"},
{2, "value is incremented in multiples of 10 minutes"},
{3, "value is incremented in multiples of 1 hour"},
{4, "value is incremented in multiples of 10 hour"},
{5, "Other values shall be interpreted as multiples of 1 minute(version 10.7.0)"},
{6, "Other values shall be interpreted as multiples of 1 minute(version 10.7.0)"},
{7, "value indicates that the timer is infinite"},
{0, NULL}
};
void
dissect_gtpv2_epc_timer(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_timer_unit, tvb, 0, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_timer_value, tvb, 0, 1, ENC_BIG_ENDIAN);
}
/* 8.88 Signalling Priority Indication */
static void
dissect_gtpv2_sig_prio_ind(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_lapi, tvb, 0, 1, ENC_BIG_ENDIAN);
}
/* 8.89 Temporary Mobile Group Identity (TMGI) */
static void
dissect_gtpv2_tmgi(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;
guint64 tmgi;
tmgi = tvb_get_ntoh48(tvb, offset);
proto_item_append_text(item, "%012" G_GINT64_MODIFIER "x", tmgi);
proto_tree_add_item(tree, hf_gtpv2_mbms_service_id, tvb, offset, 3, ENC_NA);
offset += 3;
dissect_e212_mcc_mnc(tvb, pinfo, tree, offset, E212_NONE, TRUE);
offset += 3;
if (length > offset)
proto_tree_add_item(tree, hf_gtpv2_spare_bytes, tvb, offset, length-offset, ENC_NA);
}
/*
* 8.90 Additional MM context for SRVCC
* 3GPP TS 29.274 Figure 8.90-1
*/
static void
dissect_gtpv2_add_mm_cont_for_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;
proto_item *ms_cm_item;
proto_tree *ms_cm_tree;
guint8 elm_len;
/* Length of Mobile Station Classmark 2 */
elm_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_len_ms_classmark2, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
ms_cm_item = proto_tree_add_item(tree, hf_gtpv2_mobile_station_classmark2, tvb, offset, elm_len, ENC_NA);
ms_cm_tree = proto_item_add_subtree(ms_cm_item, ett_gtpv2_ms_mark);
/* Mobile Station Classmark 2 */
de_ms_cm_2(tvb, ms_cm_tree, pinfo, offset, elm_len, NULL, 0);
offset += elm_len;
/* Length of Mobile Station Classmark 3 */
elm_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_len_ms_classmark3, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
ms_cm_item = proto_tree_add_item(tree, hf_gtpv2_mobile_station_classmark3, tvb, offset, elm_len, ENC_NA);
ms_cm_tree = proto_item_add_subtree(ms_cm_item, ett_gtpv2_ms_mark);
/* Mobile Station Classmark 3 */
de_ms_cm_3(tvb, ms_cm_tree, pinfo, offset, elm_len, NULL, 0);
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 += 1;
ms_cm_item = proto_tree_add_item(tree, hf_gtpv2_supported_codec_list, tvb, offset, elm_len, ENC_NA);
ms_cm_tree = proto_item_add_subtree(ms_cm_item, ett_gtpv2_supp_codec_list);
/* Supported Codec List */
de_sup_codec_list(tvb, ms_cm_tree, pinfo, offset, elm_len, NULL, 0);
offset += elm_len;
if (length > offset)
proto_tree_add_item(tree, hf_gtpv2_spare_bytes, tvb, offset, length-offset, ENC_NA);
}
/* 8.91 Additional flags for SRVCC */
static void
dissect_gtpv2_add_flags_for_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;
proto_tree_add_item(tree, hf_gtpv2_add_flags_for_srvcc_ics, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_vsrvcc_flag, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
if (length > 1)
proto_tree_add_item(tree, hf_gtpv2_spare_bytes, tvb, offset, length-1, ENC_NA);
}
/* 8.92 Max MBR/APN-AMBR (MMBR) */
static void
dissect_gtpv2_mmbr(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;
guint32 max_ul;
guint32 max_dl;
max_ul = tvb_get_ntohl(tvb, offset);
proto_tree_add_uint_format_value(tree, hf_gtpv2_mmbr_ul, tvb, offset, 4, max_ul, "%u %s",
(max_ul) > 1000 ? max_ul/1000 : max_ul,
(max_ul) > 1000 ? "Mbps" : "kbps");
offset += 4;
max_dl = tvb_get_ntohl(tvb, offset);
proto_tree_add_uint_format_value(tree, hf_gtpv2_mmbr_dl, tvb, offset, 4, max_dl, "%u %s",
(max_dl) > 1000 ? max_dl/1000 : max_dl,
(max_dl) > 1000 ? "Mbps" : "kbps");
}
/* 8.93 MDT Configuration */
static void
dissect_gtpv2_mdt_config(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
proto_tree_add_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, 0, length);
}
/* 8.94 Additional Protocol Configuration Options (APCO) */
static void
dissect_gtpv2_apco(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
switch (message_type) {
case GTPV2_CREATE_SESSION_REQUEST:
case GTPV2_DELETE_SESSION_REQUEST:
case GTPV2_BEARER_RESOURCE_COMMAND:
case GTPV2_CREATE_BEARER_RESPONSE:
case GTPV2_UPDATE_BEARER_RESPONSE:
case GTPV2_DELETE_BEARER_RESPONSE:
/* PCO options as MS to network direction */
pinfo->link_dir = P2P_DIR_UL;
break;
case GTPV2_CREATE_SESSION_RESPONSE:
case GTPV2_MODIFY_BEARER_RESPONSE:
case GTPV2_DELETE_SESSION_RESPONSE:
case GTPV2_CREATE_BEARER_REQUEST:
case GTPV2_UPDATE_BEARER_REQUEST:
case GTPV2_DELETE_BEARER_REQUEST:
/* 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);
}
/* 8.95 Absolute Time of MBMS Data Transfer */
static void
dissect_gtpv2_abs_mbms_data_tf_time(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;
const gchar *time_str;
time_str = tvb_ntp_fmt_ts(tvb, offset);
proto_tree_add_string(tree, hf_gtpv2_abs_time_mbms_data, tvb, offset, 8, time_str);
proto_item_append_text(item, "%s", time_str);
offset += 8;
if (length > offset)
proto_tree_add_item(tree, hf_gtpv2_spare_bytes, tvb, offset, length-offset, ENC_NA);
}
/* 8.96 H(e)NB Information Reporting */
static const true_false_string gtpv2_henb_info_report_fti_vals = {
"Start reporting H(e)NB local IP address and UDP port number information change",
"Stop reporting H(e)NB local IP address and UDP port number information change",
};
static void
dissect_gtpv2_henb_info_report(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_henb_info_report_fti, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
if (length > 1)
proto_tree_add_item(tree, hf_gtpv2_spare_bytes, tvb, offset, length-1, ENC_NA);
}
/* 8.97 IPv4 Configuration Parameters (IP4CP) */
static void
dissect_gtpv2_ip4cp(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_ip4cp_subnet_prefix_len, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(tree, hf_gtpv2_ip4cp_ipv4, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
if (length > offset)
proto_tree_add_item(tree, hf_gtpv2_spare_bytes, tvb, offset, length-offset, ENC_NA);
}
/* 8.98 Change to Report Flags */
static void
dissect_gtpv2_change_report_flags(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_change_report_flags_sncr, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_change_report_flags_tzcr, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
if (length > 1)
proto_tree_add_item(tree, hf_gtpv2_spare_bytes, tvb, offset, length-1, ENC_NA);
}
/* 8.99 Action Indication */
static const value_string gtpv2_action_indication_vals[] = {
{ 0, "No Action"},
{ 1, "Deactivation Indication"},
{ 2, "Paging Indication"},
{ 3, "Spare"},
{ 4, "Spare"},
{ 5, "Spare"},
{ 6, "Spare"},
{ 7, "Spare"},
{ 0, NULL}
};
static value_string_ext gtpv2_action_indication_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_action_indication_vals);
static void
dissect_gtpv2_action_indication(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_action_indication_val, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
if (length > 1)
proto_tree_add_item(tree, hf_gtpv2_spare_bytes, tvb, offset, length-1, ENC_NA);
}
/*
* 8.100 TWAN Identifier
*/
static void
dissect_gtpv2_twan_Identifier(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_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, 0, length);
}
/*
* 8.101 ULI Timestamp
*/
static void
dissect_gtpv2_uli_timestamp(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
const gchar *time_str;
/* Octets 5 to 8 are encoded in the same format as the first four octets of the 64-bit timestamp
* format as defined in section 6 of IETF RFC 5905
*/
time_str = tvb_ntp_fmt_ts_sec(tvb, 0);
proto_tree_add_string(tree, hf_gtpv2_uli_timestamp, tvb, 0, 8, time_str);
proto_item_append_text(item, "%s", time_str);
}
/*
* 8.102 MBMS Flags
*/
static void
dissect_gtpv2_mbms_flags(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_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, 0, length);
}
/*
* 8.103 RAN/NAS Cause
*/
static void
dissect_gtpv2_ran_nas_cause(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_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, 0, length);
}
/*
* 8.104 CN Operator Selection Entity
*/
static void
dissect_gtpv2_cn_operator_selection_entity(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_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, 0, length);
}
/*
* 8.105 Trusted WLAN Mode Indication
*/
static void
dissect_gtpv2_trust_wlan_mode_ind(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_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, 0, length);
}
/*
* 8.106 Node Number
*/
static void
dissect_gtpv2_node_number(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_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, 0, length);
}
/*
* 8.107 Node Identifier
*/
static void
dissect_gtpv2_node_identifier(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_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, 0, length);
}
/*
* 8.108 Presence Reporting Area Action
*/
/*
* The Presence-Reporting-Area-Elements-List AVP (AVP code 2820)
* is of type Octetstring and is coded as specified in 3GPP TS 29.274 [22]
* in Presence Reporting Area Action IE, starting from octet 9.
*/
static int
dissect_diameter_3gpp_presence_reporting_area_elements_list(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data _U_)
{
/*diam_sub_dis_t *diam_sub_dis = (diam_sub_dis_t*)data;*/
proto_tree *sub_tree;
proto_item *item;
int offset = 0, i;
guint length;
guint8 oct, no_tai, no_rai, no_mENB, no_hENB, no_ECGI, no_sai, no_cgi;
gchar *append_str;
length = tvb_reported_length(tvb);
/* Octet 9 Number of TAI Number of RAI */
oct = tvb_get_guint8(tvb,offset);
no_tai = oct >> 4;
no_rai = oct & 0x0f;
proto_tree_add_item(tree, hf_gtpv2_pres_rep_area_act_no_tai, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_gtpv2_pres_rep_area_act_no_rai, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Octet 10 Spare Number of Macro eNodeB */
no_mENB = tvb_get_guint8(tvb,offset) & 0x3f;
proto_tree_add_item(tree, hf_gtpv2_pres_rep_area_act_no_m_enodeb, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Octet 11 Spare Number of Home eNodeB */
no_hENB = tvb_get_guint8(tvb,offset) & 0x3f;
proto_tree_add_item(tree, hf_gtpv2_pres_rep_area_act_no_h_enodeb, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Octet 12 Spare Number of ECGI */
no_ECGI = tvb_get_guint8(tvb,offset) & 0x3f;
proto_tree_add_item(tree, hf_gtpv2_pres_rep_area_act_no_ecgi, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Octet 13 Spare Number of SAI */
no_sai = tvb_get_guint8(tvb,offset) & 0x3f;
proto_tree_add_item(tree, hf_gtpv2_pres_rep_area_act_no_sai, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Octet 14 Spare Number of CGI */
no_cgi = tvb_get_guint8(tvb,offset) & 0x3f;
proto_tree_add_item(tree, hf_gtpv2_pres_rep_area_act_no_cgi, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Octet 15 to k TAIs [1..15] */
if(no_tai > 0){
i = 1;
while (no_tai > 0){
sub_tree = proto_tree_add_subtree_format(tree, tvb, offset, 5, ett_gtpv2_preaa_tais, &item, "Tracking Area Identity (TAI) Number %u",i);
append_str = dissect_gtpv2_tai(tvb, pinfo, sub_tree, &offset);
proto_item_append_text(item, " %s",append_str);
i++;
no_tai--;
}
}
/* Octet (k+1) to m Macro eNB IDs [1..63]
* Macro eNB IDs in octets 'k+1' to 'm', if any, shall be encoded as per octets 6 to 11 of the Target ID for type Macro eNodeB in figure 8.51-2.
* Octets 'k+1' to 'm' shall be absent if the field 'Number of Macro eNodeB' is set to the value '0'.
*/
if(no_mENB > 0){
i = 1;
while (no_mENB > 0){
sub_tree = proto_tree_add_subtree_format(tree, tvb, offset, 6, ett_gtpv2_preaa_menbs, &item, "Macro eNB ID %u",i);
append_str = dissect_gtpv2_macro_enodeb_id(tvb, pinfo, sub_tree, &offset);
proto_item_append_text(item, " %s",append_str);
i++;
no_mENB--;
}
}
/* Octet (m+1) to p Home eNB IDs [1..63]
* Home eNB IDs in octets 'm+1' to 'p', if any, shall be encoded as per octets 6 to 12 of the Target ID for type Home eNodeB in figure 8.51-3.
* Octets 'm+1' to 'p' shall be absent if the field 'Number of Home eNodeB' is set to the value '0'.
*/
if(no_hENB > 0){
i = 1;
while (no_hENB > 0){
sub_tree = proto_tree_add_subtree_format(tree, tvb, offset, 7, ett_gtpv2_preaa_henbs, &item, "Home eNB ID %u",i);
append_str = dissect_gtpv2_home_enodeb_id(tvb, pinfo, sub_tree, &offset);
proto_item_append_text(item, " %s",append_str);
i++;
no_hENB--;
}
}
/* Octet (p+1) to q ECGIs [1..63]
* ECGIs in octets 'p+1' to 'q', if any, shall be encoded as per the ECGI field in subclause 8.21.5.
* Octets 'p+1' to 'q' shall be absent if the field 'Number of ECGI' is set to the value '0'.
*/
if(no_ECGI > 0){
i = 1;
while (no_ECGI > 0){
sub_tree = proto_tree_add_subtree_format(tree, tvb, offset, 7, ett_gtpv2_preaa_ecgis, &item, "ECGI ID %u",i);
append_str = dissect_gtpv2_ecgi(tvb, pinfo, sub_tree, &offset);
proto_item_append_text(item, " %s",append_str);
i++;
no_ECGI--;
}
}
/* Octet (q+1) to r RAIs [1..15]
* RAIs in octets 'q+1' to 'r', if any, shall be encoded as per the RAI field in subclause 8.21.3.
* Octets 'q+1' to 'r' shall be absent if the field 'Number of RAI' is set to the value '0'.
*/
if(no_rai > 0){
i = 1;
while (no_rai > 0){
sub_tree = proto_tree_add_subtree_format(tree, tvb, offset, 7, ett_gtpv2_preaa_rais, &item, "RAI ID %u",i);
append_str = dissect_gtpv2_rai(tvb, pinfo, sub_tree, &offset);
proto_item_append_text(item, " %s",append_str);
i++;
no_rai--;
}
}
/* Octet (r+1) to s SAIs [1..63]
* SAIs in octets 'r+1' to 's', if any, shall be encoded as per the SAI field in subclause 8.21.2.
* Octets 'r+1' to 's' shall be absent if the field 'Number of SAI' is set to the value '0'.
*/
if(no_sai > 0){
i = 1;
while (no_sai > 0){
sub_tree = proto_tree_add_subtree_format(tree, tvb, offset, 7, ett_gtpv2_preaa_sais, &item, "SAI ID %u",i);
append_str = dissect_gtpv2_sai_common(tvb, pinfo, sub_tree, &offset);
proto_item_append_text(item, " %s",append_str);
i++;
no_sai--;
}
}
/* Octet (s+1) to t CGIs [1..63]
* CGIs in octets 's+1' to 't', if any, shall be encoded as per the CGI field in subclause 8.21.1.
* Octets 's+1' to 't' shall be absent if the field 'Number of CGI' is set to the value '0'.
*/
if(no_cgi > 0){
i = 1;
while (no_cgi > 0){
sub_tree = proto_tree_add_subtree_format(tree, tvb, offset, 7, ett_gtpv2_preaa_cgis, &item, "CGI ID %u",i);
append_str = dissect_gtpv2_cgi(tvb, pinfo, sub_tree, &offset);
proto_item_append_text(item, " %s",append_str);
i++;
no_cgi--;
}
}
return length;
}
static const value_string gtpv2_pres_rep_area_action_vals[] = {
{ 1, "Start Reporting change"},
{ 2, "Stop Reporting change"},
{ 0, NULL}
};
static void
dissect_gtpv2_pres_rep_area_action(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
{
int offset = 0;
tvbuff_t * new_tvb;
/* Octet 5 Spare Action */
proto_tree_add_item(tree, hf_gtpv2_pres_rep_area_action, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
if (length == 1)
return;
/* Octet 6 to 8 Presence Reporting Area Identifier */
proto_tree_add_item(tree, hf_gtpv2_pres_rep_area_id, tvb, offset, 2, ENC_BIG_ENDIAN);
offset+=2;
if (length == 3)
return;
new_tvb = tvb_new_subset_length(tvb, offset, length-3);
/* Share the rest of the dissection with the AVP dissector */
dissect_diameter_3gpp_presence_reporting_area_elements_list(new_tvb, pinfo, tree, NULL);
}
/*
* 8.109 Presence Reporting Area Information
*/
static void
dissect_gtpv2_pres_rep_area_information(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_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, 0, length);
}
/*
* 8.110 TWAN Identifier Timestamp
*/
static void
dissect_gtpv2_twan_identifier_timestamp(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_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, 0, length);
}
/*
* 8.111 Overload Control Information
*/
static void
dissect_gtpv2_overload_control_inf(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree _U_, proto_item *item _U_, guint16 length _U_, 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_overload_control_information);
new_tvb = tvb_new_subset_length(tvb, offset, length);
dissect_gtpv2_ie_common(new_tvb, pinfo, grouped_tree, offset, message_type);
}
/*
* 8.112 Load Control Information
*/
static void
dissect_gtpv2_load_control_inf(tvbuff_t *tvb, packet_info *pinfo _U_, 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_load_control_inf);
new_tvb = tvb_new_subset_length(tvb, offset, length);
dissect_gtpv2_ie_common(new_tvb, pinfo, grouped_tree, 0, message_type);
}
/*
* 8.113 Metric
*/
static void
dissect_gtpv2_metric(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
guint32 oct;
proto_tree_add_item_ret_uint(tree, hf_gtpv2_metric, tvb, 0, 1, ENC_BIG_ENDIAN, &oct);
if (oct > 0x64) {
proto_item_append_text(item, "Metric: value beyond 100 is considered as 0");
} else {
proto_item_append_text(item, "%u", oct);
}
}
/*
* 8.114 Sequence Number
*/
static void
dissect_gtpv2_seq_no(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
{
guint32 seq;
proto_tree_add_item_ret_uint(tree, hf_gtpv2_sequence_number, tvb, 0, 4, ENC_BIG_ENDIAN, &seq);
proto_item_append_text(item, "%u", seq);
}
/*
* 8.115 APN and Relative Capacity
*/
static void
dissect_gtpv2_apn_and_relative_capacity(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 oct, apn_length;
guint8 *apn = NULL;
int name_len, tmp;
oct = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_relative_capacity, tvb, offset, 1, ENC_BIG_ENDIAN);
if((oct > 0x64) || (oct < 0x01))
proto_item_append_text(item, "Relative Capacity: value beyond (1,100) is considered as 0");
offset += 1;
apn_length = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_gtpv2_apn_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
if (apn_length > 0)
{
name_len = tvb_get_guint8(tvb, offset);
if (name_len < 0x20)
{
apn = tvb_get_string_enc(wmem_packet_scope(), tvb, offset + 1, apn_length - 1, ENC_ASCII);
for (;;)
{
if (name_len >= apn_length - 1)
break;
tmp = name_len;
name_len = name_len + apn[tmp] + 1;
apn[tmp] = '.';
}
}
else
{
apn = tvb_get_string_enc(wmem_packet_scope(), tvb, offset, apn_length, ENC_ASCII);
}
proto_tree_add_string(tree, hf_gtpv2_apn, tvb, offset, apn_length, apn);
}
}
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}, /* 1, Internal Mobile Subscriber Identity (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 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 */
{GTPV2_IE_MM_CTX_FOR_CS_TO_PS_SRVCC, dissect_gtpv2_mm_ctx_for_cs_to_ps_srvcc }, /* 62 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) */
{GTPV2_IE_MBMS_SESSION_DURATION, dissect_gtpv2_mbms_session_duration}, /* 138, 8.69 MBMS Session Duration */
{GTPV2_IE_MBMS_SERVICE_AREA, dissect_gtpv2_mbms_service_area}, /* 139, 8.70 MBMS Service Area */
{GTPV2_IE_MBMS_SESSION_ID, dissect_gtpv2_mbms_session_id}, /* 140, 8.71 MBMS Session Identifier */
{GTPV2_IE_MBMS_FLOW_ID, dissect_gtpv2_mbms_flow_id}, /* 141, 8.72 MBMS Flow Identifier */
{GTPV2_IE_MBMS_IP_MC_DIST, dissect_gtpv2_mbms_ip_mc_dist}, /* 142, 8.73 MBMS IP Multicast Distribution */
{GTPV2_IE_MBMS_DIST_ACK, dissect_gtpv2_mbms_dist_ack}, /* 143, 8.74 MBMS Distribution Acknowledge */
{GTPV2_IE_RFSP_INDEX, dissect_gtpv2_rfsp_index}, /* 144, 8.77 RFSP Index */
{GTPV2_IE_UCI, dissect_gtpv2_uci}, /* 145, 8.75 User CSG Information (UCI) */
{GTPV2_IE_CSG_INFO_REP_ACTION, dissect_gtpv2_csg_info_rep_action}, /* 146, 8.76 CSG Information Reporting Action */
{GTPV2_IE_CSG_ID, dissect_gtpv2_csg_id}, /* 147, 8.78 CSG ID */
{GTPV2_IE_CMI, dissect_gtpv2_cmi}, /* 148, 8.79 CSG Membership Indication (CMI) */
{GTPV2_IE_SERVICE_INDICATOR, dissect_gtpv2_service_indicator}, /* 149, 8.80 Service indicator */
{GTPV2_IE_DETACH_TYPE, dissect_gtpv2_detach_type}, /* 150, 8.81 Detach Type */
{GTPV2_IE_LDN, dissect_gtpv2_ldn}, /* 151, 8.82 Local Distinguished Name (LDN) */
{GTPV2_IE_NODE_FEATURES, dissect_gtpv2_node_features}, /* 152, 8.83 Node Features */
{GTPV2_IE_MBMS_TIME_TO_DATA_XFER, dissect_gtpv2_mbms_time_to_data_xfer}, /* 153, 8.84 MBMS Time to Data Transfer */
{GTPV2_IE_THROTTLING, dissect_gtpv2_throttling}, /* 154, 8.85 Throttling */
{GTPV2_IE_ARP, dissect_gtpv2_arp}, /* 155, 8.86 Allocation/Retention Priority (ARP) */
{GTPV2_IE_EPC_TIMER, dissect_gtpv2_epc_timer}, /* 156, 8.87 EPC Timer */
{GTPV2_IE_SIG_PRIO_IND, dissect_gtpv2_sig_prio_ind}, /* 157, 8.88 Signalling Priority Indication */
{GTPV2_IE_TMGI, dissect_gtpv2_tmgi}, /* 158, 8.89 Temporary Mobile Group Identity (TMGI) */
{GTPV2_IE_ADD_MM_CONT_FOR_SRVCC, dissect_gtpv2_add_mm_cont_for_srvcc}, /* 159, 8.90 Additional MM context for SRVCC */
{GTPV2_IE_ADD_FLAGS_FOR_SRVCC, dissect_gtpv2_add_flags_for_srvcc}, /* 160, 8.91 Additional flags for SRVCC */
{GTPV2_IE_MMBR, dissect_gtpv2_mmbr}, /* 161, 8.92 Max MBR/APN-AMBR (MMBR) */
{GTPV2_IE_MDT_CONFIG, dissect_gtpv2_mdt_config}, /* 162, 8.93 MDT Configuration */
{GTPV2_IE_APCO, dissect_gtpv2_apco}, /* 163, 8.94 Additional Protocol Configuration Options (APCO) */
{GTPV2_IE_ABS_MBMS_DATA_TF_TIME, dissect_gtpv2_abs_mbms_data_tf_time}, /* 164, 8.95 Absolute Time of MBMS Data Transfer */
{GTPV2_IE_HENB_INFO_REPORT, dissect_gtpv2_henb_info_report}, /* 165, 8.96 H(e)NB Information Reporting */
{GTPV2_IE_IP4CP, dissect_gtpv2_ip4cp}, /* 166, 8.97 IPv4 Configuration Parameters (IPv4CP) */
{GTPV2_IE_CHANGE_TO_REPORT_FLAGS, dissect_gtpv2_change_report_flags}, /* 167, 8.98 Change to Report Flags */
{GTPV2_IE_ACTION_INDICATION, dissect_gtpv2_action_indication}, /* 168, 8.99 Action Indication */
{GTPV2_IE_TWAN_IDENTIFIER, dissect_gtpv2_twan_Identifier}, /* 169, 8.100 TWAN Identifier */
{GTPV2_IE_ULI_TIMESTAMP, dissect_gtpv2_uli_timestamp}, /* 170, 8.101 ULI Timestamp */
{GTPV2_IE_MBMS_FLAGS, dissect_gtpv2_mbms_flags}, /* 171, 8.102 MBMS Flags */
{GTPV2_IE_RAN_NAS_CAUSE, dissect_gtpv2_ran_nas_cause}, /* 172, 8.103 RAN/NAS Cause */
{GTPV2_IE_CN_OP_SEL_ENT, dissect_gtpv2_cn_operator_selection_entity}, /* 173, 8.104 CN Operator Selection Entity */
{GTPV2_IE_TRUST_WLAN_MODE_IND, dissect_gtpv2_trust_wlan_mode_ind}, /* 174, 8.105 Trusted WLAN Mode Indication */
{GTPV2_IE_NODE_NUMBER, dissect_gtpv2_node_number}, /* 175, 8.106 Node Number */
{GTPV2_IE_NODE_IDENTIFIER, dissect_gtpv2_node_identifier}, /* 176, 8.107 Node Identifier */
{GTPV2_IE_PRES_REP_AREA_ACT, dissect_gtpv2_pres_rep_area_action}, /* 177, 8.108 Presence Reporting Area Action */
{GTPV2_IE_PRES_REP_AREA_INF, dissect_gtpv2_pres_rep_area_information}, /* 178, 8.109 Presence Reporting Area Information */
{GTPV2_IE_TWAN_ID_TS, dissect_gtpv2_twan_identifier_timestamp}, /* 179, 8.110 TWAN Identifier Timestamp */
{GTPV2_IE_OVERLOAD_CONTROL_INF, dissect_gtpv2_overload_control_inf}, /* 180, 8.111 Overload Control Information */
{GTPV2_IE_LOAD_CONTROL_INF, dissect_gtpv2_load_control_inf}, /* 181, 8.112 Load Control Information */
{GTPV2_IE_METRIC, dissect_gtpv2_metric}, /* 182, 8.113 Metric */
{GTPV2_IE_SEQ_NO, dissect_gtpv2_seq_no}, /* 183, 8.114 Sequence Number */
{GTPV2_IE_APN_AND_REL_CAP, dissect_gtpv2_apn_and_relative_capacity}, /* 184, 8.115 APN and Relative Capacity */
{GTPV2_IE_PRIVATE_EXT, dissect_gtpv2_private_ext},
{0, dissect_gtpv2_unknown}
};
static gtpv2_msg_hash_t *
gtpv2_match_response(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, gint seq_nr, guint msgtype, gtpv2_conv_info_t *gtpv2_info)
{
gtpv2_msg_hash_t gcr, *gcrp = NULL;
gcr.seq_nr = seq_nr;
switch (msgtype) {
case GTPV2_CREATE_SESSION_REQUEST:
case GTPV2_CREATE_BEARER_REQUEST:
case GTPV2_UPDATE_BEARER_REQUEST:
case GTPV2_MODIFY_BEARER_REQUEST:
case GTPV2_DELETE_BEARER_REQUEST:
case GTPV2_DELETE_SESSION_REQUEST:
gcr.is_request = TRUE;
gcr.req_frame = pinfo->fd->num;
gcr.rep_frame = 0;
break;
case GTPV2_CREATE_SESSION_RESPONSE:
case GTPV2_CREATE_BEARER_RESPONSE:
case GTPV2_UPDATE_BEARER_RESPONSE:
case GTPV2_MODIFY_BEARER_RESPONSE:
case GTPV2_DELETE_BEARER_RESPONSE:
case GTPV2_DELETE_SESSION_RESPONSE:
gcr.is_request = FALSE;
gcr.req_frame = 0;
gcr.rep_frame = pinfo->fd->num;
break;
default:
gcr.is_request = FALSE;
gcr.req_frame = 0;
gcr.rep_frame = 0;
break;
}
gcrp = (gtpv2_msg_hash_t *)wmem_map_lookup(gtpv2_info->matched, &gcr);
if (gcrp) {
gcrp->is_request = gcr.is_request;
} else {
/*no match, let's try to make one*/
switch (msgtype) {
case GTPV2_CREATE_SESSION_REQUEST:
case GTPV2_CREATE_BEARER_REQUEST:
case GTPV2_UPDATE_BEARER_REQUEST:
case GTPV2_MODIFY_BEARER_REQUEST:
case GTPV2_DELETE_BEARER_REQUEST:
case GTPV2_DELETE_SESSION_REQUEST:
gcr.seq_nr = seq_nr;
gcrp = (gtpv2_msg_hash_t *)wmem_map_lookup(gtpv2_info->unmatched, &gcr);
if (gcrp) {
wmem_map_remove(gtpv2_info->unmatched, gcrp);
}
/* if we can't reuse the old one, grab a new chunk */
if (!gcrp) {
gcrp = wmem_new(wmem_file_scope(), gtpv2_msg_hash_t);
}
gcrp->seq_nr = seq_nr;
gcrp->req_frame = pinfo->fd->num;
gcrp->req_time = pinfo->fd->abs_ts;
gcrp->rep_frame = 0;
gcrp->msgtype = msgtype;
gcrp->is_request = TRUE;
wmem_map_insert(gtpv2_info->unmatched, gcrp, gcrp);
return NULL;
break;
case GTPV2_CREATE_SESSION_RESPONSE:
case GTPV2_CREATE_BEARER_RESPONSE:
case GTPV2_UPDATE_BEARER_RESPONSE:
case GTPV2_MODIFY_BEARER_RESPONSE:
case GTPV2_DELETE_BEARER_RESPONSE:
case GTPV2_DELETE_SESSION_RESPONSE:
gcr.seq_nr = seq_nr;
gcrp = (gtpv2_msg_hash_t *)wmem_map_lookup(gtpv2_info->unmatched, &gcr);
if (gcrp) {
if (!gcrp->rep_frame) {
wmem_map_remove(gtpv2_info->unmatched, gcrp);
gcrp->rep_frame = pinfo->fd->num;
gcrp->is_request = FALSE;
wmem_map_insert(gtpv2_info->matched, gcrp, gcrp);
}
}
break;
default:
break;
}
}
/* we have found a match */
if (gcrp) {
proto_item *it;
if (gcrp->is_request) {
it = proto_tree_add_uint(tree, hf_gtpv2_response_in, tvb, 0, 0, gcrp->rep_frame);
PROTO_ITEM_SET_GENERATED(it);
} else {
it = proto_tree_add_uint(tree, hf_gtpv2_response_to, tvb, 0, 0, gcrp->req_frame);
PROTO_ITEM_SET_GENERATED(it);
}
}
return gcrp;
}
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);
ie_tree = proto_tree_add_subtree_format(tree, tvb, offset, 4 + length, ett_gtpv2_ie, &ti, "%s : ",
val_to_str_ext_const(type, &gtpv2_element_type_vals_ext, "Unknown"));
/* Octet 1 */
proto_tree_add_item(ie_tree, hf_gtpv2_ie, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/*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 += 1;
/* 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 */
expert_add_info(pinfo, ti, &ei_gtpv2_ie);
} 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 += length;
}
}
static int
dissect_gtpv2(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, void* data _U_)
{
proto_tree *gtpv2_tree, *flags_tree;
proto_item *tf;
guint8 message_type, t_flag, p_flag;
int offset = 0;
guint16 msg_length;
tvbuff_t *msg_tvb;
int seq_no = 0;
conversation_t *conversation;
gtpv2_conv_info_t *gtpv2_info;
/* 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_set_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(message_type, &gtpv2_message_type_vals_ext, "Unknown"));
p_flag = (tvb_get_guint8(tvb, offset) & 0x10) >> 4;
msg_length = tvb_get_ntohs(tvb, offset + 2);
proto_tree_add_item(tree, proto_gtpv2, tvb, offset, msg_length + 4, ENC_NA);
/*
* Do we have a conversation for this connection?
*/
conversation = find_or_create_conversation(pinfo);
/*
* Do we already know this conversation?
*/
gtpv2_info = (gtpv2_conv_info_t *)conversation_get_proto_data(conversation, proto_gtpv2);
if (gtpv2_info == NULL) {
/* No. Attach that information to the conversation, and add
* it to the list of information structures.
*/
gtpv2_info = wmem_new(wmem_file_scope(), gtpv2_conv_info_t);
/*Request/response matching tables*/
gtpv2_info->matched = wmem_map_new(wmem_file_scope(), gtpv2_sn_hash, gtpv2_sn_equal_matched);
gtpv2_info->unmatched = wmem_map_new(wmem_file_scope(), gtpv2_sn_hash, gtpv2_sn_equal_unmatched);
conversation_add_proto_data(conversation, proto_gtpv2, gtpv2_info);
}
if (tree) {
gtpv2_tree = proto_tree_add_subtree(tree, tvb, offset, msg_length + 4, ett_gtpv2, NULL,
val_to_str_ext_const(message_type, &gtpv2_message_type_vals_ext, "Unknown"));
/* 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 += 1;
/* Octet 2 */
proto_tree_add_item(gtpv2_tree, hf_gtpv2_message_type, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* 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_ret_uint(gtpv2_tree, hf_gtpv2_seq, tvb, offset, 3, ENC_BIG_ENDIAN, &seq_no);
offset += 3;
/* Spare 1 octet */
proto_tree_add_item(gtpv2_tree, hf_gtpv2_spare, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
if (p_flag) {
msg_tvb = tvb_new_subset_length(tvb, 0, msg_length + 4);
dissect_gtpv2_ie_common(msg_tvb, pinfo, gtpv2_tree, offset, message_type);
} else {
dissect_gtpv2_ie_common(tvb, pinfo, gtpv2_tree, offset, message_type);
}
/*Use sequence number to track Req/Resp pairs*/
gtpv2_match_response(tvb, pinfo, gtpv2_tree, seq_no, message_type, gtpv2_info);
}
/* Bit 5 represents a "P" flag. If the "P" flag is set to "0",
* no piggybacked message shall be present. If the "P" flag is set to "1",
* then another GTPv2-C message with its own header and body shall be present
* at the end of the current message.
*/
if (p_flag) {
tvbuff_t *new_p_tvb;
/* Octets 3 to 4 represent the Length field. This field shall indicate the
* length of the message in octets excluding the
* mandatory part of the GTP-C header (the first 4 octets).
*/
new_p_tvb = tvb_new_subset_remaining(tvb, msg_length + 4);
col_append_str(pinfo->cinfo, COL_INFO, " / ");
col_set_fence(pinfo->cinfo, COL_INFO);
dissect_gtpv2(new_p_tvb, pinfo, tree, NULL);
}
return tvb_captured_length(tvb);
}
void proto_register_gtpv2(void)
{
static hf_register_info hf_gtpv2[] = {
{ &hf_gtpv2_response_in,
{ "Response In", "gtpv2.response_in",
FT_FRAMENUM, BASE_NONE, NULL, 0x0,
"The response to this GTP request is in this frame", HFILL }
},
{ &hf_gtpv2_response_to,
{ "Response To", "gtpv2.response_to",
FT_FRAMENUM, BASE_NONE, NULL, 0x0,
"This is a response to the GTP request in this frame", 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_HEX, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_version,
{"Version", "gtpv2.version",
FT_UINT8, BASE_DEC, NULL, 0xe0,
NULL, HFILL}
},
{&hf_gtpv2_p,
{"Piggybacking flag (P)", "gtpv2.p",
FT_UINT8, BASE_DEC, NULL, 0x10,
"If Piggybacked message is present or not", HFILL}
},
{ &hf_gtpv2_t,
{"TEID flag (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|BASE_EXT_STRING, &gtpv2_message_type_vals_ext, 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_HEX_DEC, NULL, 0x0,
"TEID", HFILL}
},
{ &hf_gtpv2_seq,
{"Sequence Number", "gtpv2.seq",
FT_UINT32, BASE_HEX_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|BASE_EXT_STRING, &gtpv2_element_type_vals_ext, 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_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|BASE_EXT_STRING, &gtpv2_element_type_vals_ext, 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_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_ik,
{"IK", "gtpv2.ik",
FT_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_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_rac,
{ "Routing Area Code (RAC)", "gtpv2.rac",
FT_UINT8, BASE_DEC, NULL, 0,
"Routing Area Code", HFILL}
},
{ &hf_gtpv2_rnc_id,
{"RNC ID", "gtpv2.rnc_id",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_ext_rnc_id,
{"Extended RNC-ID", "gtpv2.ext_rnc_id",
FT_UINT16, 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_UINT16, 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_emind",
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_retloc,
{"RetLoc (Retrieve Location Indication Flag)", "gtpv2.retloc",
FT_BOOLEAN, 8, NULL, 0x80, NULL, HFILL}
},
{&hf_gtpv2_pbic,
{"PBIC (Propagate BBAI Information Change)", "gtpv2.pbic",
FT_BOOLEAN, 8, NULL, 0x40, NULL, HFILL}
},
{&hf_gtpv2_srni,
{"SRNI (SGW Restoration Needed Indication)", "gtpv2.snri",
FT_BOOLEAN, 8, NULL, 0x20, NULL, HFILL}
},
{&hf_gtpv2_s6af,
{"S6AF (Static IPv6 Address Flag)", "gtpv2.s6af",
FT_BOOLEAN, 8, NULL, 0x10, NULL, HFILL}
},
{&hf_gtpv2_s4af,
{"S4AF (Static IPv4 Address Flag))", "gtpv2.s4af",
FT_BOOLEAN, 8, NULL, 0x08, NULL, HFILL}
},
{&hf_gtpv2_mbmdt,
{"MBMDT (Management Based MDT allowed flag)", "gtpv2.mbmdt",
FT_BOOLEAN, 8, NULL, 0x04, NULL, HFILL}
},
{&hf_gtpv2_israu,
{"ISRAU (ISR is activated for the UE)", "gtpv2.israu",
FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL}
},
{&hf_gtpv2_ccrsi,
{"CCRSI (CSG Change Reporting support indication)", "gtpv2.ccrsi",
FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL}
},
{&hf_gtpv2_cprai,
{"CPRAI (Change of Presence Reporting Area information Indication)", "gtpv2.cprai",
FT_BOOLEAN, 8, NULL, 0x80, NULL, HFILL}
},
{&hf_gtpv2_arrl,
{"ARRL (Abnormal Release of Radio Link)", "gtpv2.arrl",
FT_BOOLEAN, 8, NULL, 0x40, NULL, HFILL}
},
{&hf_gtpv2_ppof,
{"PPOFF (PDN Pause Off Indication)", "gtpv2.ppof",
FT_BOOLEAN, 8, NULL, 0x20, NULL, HFILL}
},
{&hf_gtpv2_ppon_ppei,
{"PPON (PDN Pause On Indication) / PPEI (PDN Pause Enabled Indication)", "gtpv2.ppon_ppei",
FT_BOOLEAN, 8, NULL, 0x10, NULL, HFILL}
},
{&hf_gtpv2_ppsi,
{"PPSI (PDN Pause Support Indication)", "gtpv2.ppsi",
FT_BOOLEAN, 8, NULL, 0x08, NULL, HFILL}
},
{&hf_gtpv2_csfbi,
{"CSFBI (CSFB Indication)", "gtpv2.csfbi",
FT_BOOLEAN, 8, NULL, 0x04, NULL, HFILL}
},
{&hf_gtpv2_clii,
{"CLII (Change of Location Information Indication):", "gtpv2.clii",
FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL}
},
{&hf_gtpv2_cpsr,
{"CPSR (CS to PS SRVCC indication)", "gtpv2.cpsr",
FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL}
},
{&hf_gtpv2_pcri,
{"PCRI (P-CSCF Restoration Indication)", "gtpv2.pcri",
FT_BOOLEAN, 8, NULL, 0x04, NULL, HFILL}
},
{&hf_gtpv2_aosi,
{"AOSI (Associate OCI with SGW node's Identity)", "gtpv2.aosi",
FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL}
},
{&hf_gtpv2_aopi,
{"AOPI (Associate OCI with PGW node's Identity)", "gtpv2.aopi",
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}
},
#if 0
{ &hf_gtpv2_tra_info,
{"Trace ID", "gtpv2.tra_info",
FT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
#endif
{ &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_mme_sgw_ue_init_pdn_disc,
{"UE initiated PDN disconnection", "gtpv2.tra_info_mme_sgw_ue_init_pdn_disc",
FT_UINT8, BASE_DEC, NULL, 0x08,
"MME", HFILL}
},
{ &hf_gtpv2_tra_info_mme_sgw_bearer_act_mod_del,
{"Bearer Activation Modification Deletion", "gtpv2.tra_info_mme_sgw_bearer_act_mod_del",
FT_UINT8, BASE_DEC, NULL, 0x10,
"MME", HFILL}
},
{ &hf_gtpv2_tra_info_mme_sgw_ho,
{"Handover", "gtpv2.tra_info_mme_sgw_ho",
FT_UINT8, BASE_DEC, NULL, 0x20,
"MME", HFILL}
},
{ &hf_gtpv2_tra_info_sgw_pdn_con_creat,
{"PDN Connection creation", "gtpv2.tra_info_sgw_pdn_con_creat",
FT_UINT8, BASE_DEC, NULL, 0x01,
"SGW", HFILL}
},
{ &hf_gtpv2_tra_info_sgw_pdn_con_term,
{"PDN connection termination", "gtpv2.tra_info_sgw_pdn_con_term",
FT_UINT8, BASE_DEC, NULL, 0x02,
"SGW", HFILL}
},
{ &hf_gtpv2_tra_info_sgw_bearer_act_mod_del,
{"Bearer Activation Modification Deletion", "gtpv2.tra_info_sgw_bearer_act_mod_del",
FT_UINT8, BASE_DEC, NULL, 0x04,
"SGW", HFILL}
},
{ &hf_gtpv2_tra_info_pgw_pdn_con_creat,
{"PDN Connection creation", "gtpv2.tra_info_pgw_pdn_con_creat",
FT_UINT8, BASE_DEC, NULL, 0x10,
"PGW", HFILL}
},
{ &hf_gtpv2_tra_info_pgw_pdn_con_term,
{"PDN connection termination", "gtpv2.tra_info_pgw_pdn_con_term",
FT_UINT8, BASE_DEC, NULL, 0x20,
"PGW", HFILL}
},
{ &hf_gtpv2_tra_info_pgw_bearer_act_mod_del,
{"Bearer Activation Modification Deletion", "gtpv2.tra_info_pgw_bearer_act_mod_del",
FT_UINT8, BASE_DEC, NULL, 0x40,
"PGW", 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}
},
/* Bit 1 - PVI (Pre-emption Vulnerability): See 3GPP TS 29.212[29],
* clause 5.3.47 Pre-emption-Vulnerability AVP.
* 5.3.47 Pre-emption-Vulnerability AVP
* The following values are defined:
* PRE-EMPTION_VULNERABILITY_ENABLED (0)
* PRE-EMPTION_VULNERABILITY_DISABLED (1)
*/
{&hf_gtpv2_bearer_qos_pvi,
{"PVI (Pre-emption Vulnerability)", "gtpv2.bearer_qos_pvi",
FT_BOOLEAN, 8, TFS(&tfs_disabled_enabled), 0x01,
NULL, HFILL}
},
{&hf_gtpv2_bearer_qos_pl,
{"PL (Priority Level)", "gtpv2.bearer_qos_pl",
FT_UINT8, BASE_DEC, NULL, 0x3c,
NULL, HFILL}
},
/* Bit 7 - PCI (Pre-emption Capability): See 3GPP TS 29.212[29], clause 5.3.46 Pre-emption-Capability AVP.
* clause 5.3.46 Pre-emption-Capability AVP.
* 5.3.46 Pre-emption-Capability AVP
* The following values are defined:
* PRE-EMPTION_CAPABILITY_ENABLED (0)
* PRE-EMPTION_CAPABILITY_DISABLED (1)
*/
{&hf_gtpv2_bearer_qos_pci,
{"PCI (Pre-emption Capability)", "gtpv2.bearer_qos_pci",
FT_BOOLEAN, 8, TFS(&tfs_disabled_enabled), 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_HEX_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_sai_lac,
{"Location Area Code", "gtpv2.sai_lac",
FT_UINT16, BASE_HEX_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_sai_sac,
{"Service Area Code", "gtpv2.sai_sac",
FT_UINT16, BASE_HEX_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_rai_lac,
{"Location Area Code", "gtpv2.rai_lac",
FT_UINT16, BASE_HEX_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_rai_rac,
{"Routing Area Code", "gtpv2.rai_rac",
FT_UINT16, BASE_HEX_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_tai_tac,
{"Tracking Area Code", "gtpv2.tai_tac",
FT_UINT16, BASE_HEX_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_ecgi_eci,
{"ECI (E-UTRAN Cell Identifier)", "gtpv2.ecgi_eci",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_uli_lai_lac,
{"Location Area Code (LAC)", "gtpv2.uli_lai_lac",
FT_UINT16, BASE_HEX_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_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, 0x3f,
NULL , HFILL}
},
{&hf_gtpv2_f_teid_gre_key,
{"TEID/GRE Key", "gtpv2.f_teid_gre_key",
FT_UINT32, BASE_HEX, 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_metric,
{"Metric", "gtpv2.metric",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_throttling_factor,
{"Throttling Factor", "gtpv2.throttling_factor",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_gtpv2_relative_capacity,
{"Relative Capacity", "gtpv2.relative_capacity",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_apn_length,
{"APN Length", "gtpv2.apn_length",
FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_sequence_number,
{"Sequence Number", "gtpv2.sequence_number",
FT_UINT32, BASE_HEX, NULL, 0x0,
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_used_cipher,
{"Used Cipher", "gtpv2.mm_context_used_cipher",
FT_UINT8, BASE_DEC, VALS(gtpv2_mm_context_used_cipher_vals), 0x07,
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_kasme,
{"Kasme", "gtpv2.mm_context_kasme",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_rand,
{"RAND", "gtpv2.mm_context_rand",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtpv2_uci_csg_id,
{"CSG ID", "gtpv2.cui_csg_id",
FT_UINT32, BASE_DEC, NULL, 0x07FFFFFF,
NULL, HFILL}
},
{&hf_gtpv2_uci_csg_id_spare,
{"Spare", "gtpv2.cui_csg_id_spare",
FT_UINT8, BASE_DEC, NULL, 0xF8,
NULL, HFILL}
},
{ &hf_gtpv2_uci_csg_membership,
{ "CSG Membership Indication", "gtpv2.uci_csg_membership",
FT_UINT8, BASE_DEC, VALS(gtpv2_uci_csg_membership_status), 0x01,
NULL, HFILL }
},
{ &hf_gtpv2_uci_access_mode,
{"Access Mode", "gtpv2.uci_access_mode",
FT_UINT8, BASE_DEC, VALS(gtpv2_uci_access_mode), 0xC0,
NULL, HFILL }
},
{ &hf_gtpv2_uci_lcsg,
{"Leave CSG", "gtpv2.uci_leave_csg",
FT_UINT8, BASE_DEC, VALS(gtpv2_uci_leave_csg), 0x02,
NULL, HFILL }
},
{ &hf_gtpv2_mm_context_xres_len,
{"XRES Length", "gtpv2.mm_context_xres_len",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_xres,
{"XRES", "gtpv2.mm_context_xres",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_autn_len,
{"AUTN Length", "gtpv2.mm_context_autn_len",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_autn,
{"AUTN", "gtpv2.mm_context_autn",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_drx,
{"DRX", "gtpv2.mm_context_drx",
FT_UINT16, BASE_HEX, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_vdp_length,
{"VDP and UE's Usage Setting length", "gtpv2.vdp_length",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_ue_net_cap_len,
{"Length of UE Network Capability", "gtpv2.mm_context_ue_net_cap_len",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_ms_net_cap_len,
{"Length of MS Network Capability", "gtpv2.mm_context_ms_net_cap_len",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_mei_len,
{"Length of Mobile Equipment Identity (MEI)", "gtpv2.mm_context_mei_len",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_vdp_len,
{"Length of Voice Domain Preference and UE's Usage Setting", "gtpv2.mm_context_vdp_len",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_una,
{ "UTRAN", "gtpv2.mm_context.una",
FT_BOOLEAN, 8, TFS(&tfs_not_allowed_allowed), 0x01,
NULL, HFILL }
},
{ &hf_gtpv2_gena,
{ "GERAN", "gtpv2.mm_context.gena",
FT_BOOLEAN, 8, TFS(&tfs_not_allowed_allowed), 0x02,
NULL, HFILL }
},
{ &hf_gtpv2_gana,
{ "GAN", "gtpv2.mm_context.gana",
FT_BOOLEAN, 8, TFS(&tfs_not_allowed_allowed), 0x04,
NULL, HFILL }
},
{ &hf_gtpv2_ina,
{ "I-HSPA-EVOLUTION", "gtpv2.mm_context.ina",
FT_BOOLEAN, 8, TFS(&tfs_not_allowed_allowed), 0x08,
NULL, HFILL }
},
{ &hf_gtpv2_ena,
{ "E-UTRAN", "gtpv2.mm_context.ena",
FT_BOOLEAN, 8, TFS(&tfs_not_allowed_allowed), 0x10,
NULL, HFILL }
},
{ &hf_gtpv2_hnna,
{ "HO-toNone3GPP-Access", "gtpv2.mm_context.hnna",
FT_BOOLEAN, 8, TFS(&tfs_not_allowed_allowed), 0x20,
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_mm_context_uamb_ri,
{"UAMB RI", "gtpv2.mm_context_uamb_ri",
FT_BOOLEAN, 8, NULL, 0x02,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_osci,
{"OSCI", "gtpv2.mm_context_osci",
FT_BOOLEAN, 8, NULL, 0x02,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_samb_ri,
{"SAMB RI", "gtpv2.mm_context_samb_ri",
FT_BOOLEAN, 8, NULL, 0x0,
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_ti,
{"Transaction Identifier", "gtpv2.ti",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_bss_container_phx,
{"PHX", "gtpv2.bss_cont.phx",
FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x08,
NULL, HFILL}
},
{ &hf_gtpv2_bss_con_sapi_flg,
{"SAPI", "gtpv2.bss_cont.sapi_flg",
FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x04,
NULL, HFILL}
},
{ &hf_gtpv2_bss_con_rp_flg,
{"RP", "gtpv2.bss_cont.rp_flg",
FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x02,
NULL, HFILL}
},
{ &hf_gtpv2_bss_con_pfi_flg,
{"PFI", "gtpv2.bss_cont.pfi_flg",
FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x01,
NULL, HFILL}
},
{ &hf_gtpv2_bss_con_pfi,
{"Packet Flow ID(PFI)", "gtpv2.bss_cont.pfi",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_bss_con_rp,
{"Radio Priority(RP)", "gtpv2.bss_cont.rp",
FT_UINT8, BASE_DEC, NULL, 0x07,
NULL, HFILL}
},
{ &hf_gtpv2_bss_con_sapi,
{"SAPI", "gtpv2.bss_cont.sapi",
FT_UINT8, BASE_DEC, NULL, 0xf0,
NULL, HFILL}
},
{ &hf_gtpv2_bss_con_xid_len,
{"XiD parameters length", "gtpv2.bss_cont.xid_len",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_bss_con_xid,
{"XiD parameters", "gtpv2.bss_cont.xid",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_home_enodeb_id,
{"Home eNodeB ID", "gtpv2.home_enodeb_id",
FT_UINT32, BASE_HEX, NULL, 0x0fffffff,
NULL, HFILL}
},
{ &hf_gtpv2_tac,
{"Tracking Area Code (TAC)", "gtpv2.tac",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mbms_service_area_nr,
{"Number of MBMS Service Area codes", "gtpv2.mbms_service_area_nr",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mbms_service_area_id,
{"MBMS Service Area code (Service Area Identity)", "gtpv2.mbms_service_area_id",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mbms_session_id,
{"MBMS Session Identifier", "gtpv2.mbms_session_id",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mbms_flow_id,
{"MBMS Flow Identifier", "gtpv2.mbms_flow_id",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_cteid,
{"Common Tunnel Endpoint Identifier", "gtpv2.cetid",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_ip_addr_type,
{"IP Address Type", "gtpv2.ip_addr_type",
FT_UINT8, BASE_DEC, NULL, 0xc0,
NULL, HFILL}
},
{ &hf_gtpv2_ip_addr_len,
{"IP Address Length", "gtpv2.ip_addr_len",
FT_UINT8, BASE_DEC, NULL, 0x3f,
NULL, HFILL}
},
{ &hf_gtpv2_mbms_ip_mc_dist_addrv4,
{"MBMS IP Multicast Distribution Address (IPv4)", "gtpv2.mbms_ip_mc_dist_addrv4",
FT_IPv4, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mbms_ip_mc_dist_addrv6,
{"MBMS IP Multicast Distribution Address (IPv6)", "gtpv2.mbms_ip_mc_dist_addrv6",
FT_IPv6, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mbms_ip_mc_src_addrv4,
{"MBMS IP Multicast Source Address (IPv4)", "gtpv2.mbms_ip_mc_src_addrv4",
FT_IPv4, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mbms_ip_mc_src_addrv6,
{"MBMS IP Multicast Source Address (IPv6)", "gtpv2.mbms_ip_mc_src_addrv6",
FT_IPv6, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mbms_hc_indicator,
{"MBMS HC Indicator", "gtpv2.mbms_hc_indicator",
FT_UINT8, BASE_DEC, VALS(gtpv2_mbms_hc_indicator_vals), 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mbms_dist_indication,
{"MBMS Distribution Indication", "gtpv2.mbms_dist_indication",
FT_UINT8, BASE_DEC, VALS(gtpv2_mbms_dist_indication_vals), 0x03,
NULL, HFILL}
},
{ &hf_gtpv2_subscriber_rfsp,
{"Subscribed RFSP Index", "gtpv2.subscriber_rfsp",
FT_INT16, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_rfsp_inuse,
{"RFSP Index in Use", "gtpv2.rfsp_inuse",
FT_INT16, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mbms_service_id,
{"MBMS Service ID", "gtpv2.mbms_service_id",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_add_flags_for_srvcc_ics,
{"ICS (IMS Centralized Service)", "gtpv2.add_flags_for_srvcc_ics",
FT_BOOLEAN, 8, NULL, 0x01,
NULL, HFILL}
},
{ &hf_gtpv2_vsrvcc_flag,
{"VF (vSRVCC Flag)", "gtpv2.vsrvcc_flag",
FT_BOOLEAN, 8, NULL, 0x02,
NULL, HFILL}
},
{ &hf_gtpv2_henb_info_report_fti,
{"FTI", "gtpv2.henb_info_report_fti",
FT_BOOLEAN, 8, TFS(&gtpv2_henb_info_report_fti_vals), 0x01,
NULL, HFILL}
},
{ &hf_gtpv2_ip4cp_subnet_prefix_len,
{"Subnet Prefix Length", "gtpv2.ip4cp_subnet_prefix_len",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_ip4cp_ipv4,
{"IPv4 Default Router Address", "gtpv2.ip4cp_ipv4",
FT_IPv4, BASE_NONE, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_change_report_flags_sncr,
{"SNCR (Service Network Change to Report)", "gtpv2.change_report_flags_sncr",
FT_BOOLEAN, 8, NULL, 0x01,
NULL, HFILL}
},
{ &hf_gtpv2_change_report_flags_tzcr,
{"TZCR (Time Zone Change to Report)", "gtpv2.change_report_flags_tzcr",
FT_BOOLEAN, 8, NULL, 0x02,
NULL, HFILL}
},
{&hf_gtpv2_action_indication_val,
{"Action Indication", "gtpv2.action_indication_val",
FT_UINT8, BASE_DEC|BASE_EXT_STRING, &gtpv2_action_indication_vals_ext, 0x07,
NULL , HFILL}
},
{ &hf_gtpv2_uli_timestamp,
{ "ULI Timestamp", "gtpv2.uli_timestamp",
FT_STRING, BASE_NONE, NULL, 0,
NULL, HFILL }
},
{ &hf_gtpv2_abs_time_mbms_data,
{ "Absolute Time of MBMS Data Transfer", "gtpv2.abs_time_mbms_data",
FT_STRING, BASE_NONE, NULL, 0,
NULL, HFILL }
},
{ &hf_gtpv2_mbms_session_duration_days,
{"MBMS Session Duration (days)", "gtpv2.mbms_session_duration_days",
FT_UINT24, BASE_DEC, NULL, 0x00007F,
NULL, HFILL}
},
{ &hf_gtpv2_mbms_session_duration_secs,
{"MBMS Session Duration (seconds)", "gtpv2.mbms_session_duration_secs",
FT_UINT24, BASE_DEC, NULL, 0xFFFF80,
NULL, HFILL}
},
{ &hf_gtpv2_node_features_prn,
{"PGW Restart Notification (PRN)", "gtpv2.node_features_prn",
FT_BOOLEAN, 8, TFS(&tfs_enabled_disabled), 0x01,
NULL, HFILL}
},
{ &hf_gtpv2_node_features_mabr,
{"Modify Access Bearers Request (MABR)", "gtpv2.node_features_mabr",
FT_BOOLEAN, 8, TFS(&tfs_enabled_disabled), 0x02,
NULL, HFILL}
},
{ &hf_gtpv2_node_features_ntsr,
{"Network Triggered Service Restoration (NTSR)", "gtpv2.node_features_ntsr",
FT_BOOLEAN, 8, TFS(&tfs_enabled_disabled), 0x04,
NULL, HFILL}
},
{ &hf_gtpv2_time_to_data_xfer,
{"MBMS Time to Data Transfer", "gtpv2.time_to_data_xfer",
FT_STRING, BASE_NONE, NULL, 0,
NULL, HFILL}
},
{ &hf_gtpv2_arp_pvi,
{"Pre-emption Vulnerability (PVI)", "gtpv2.arp_pvi",
FT_BOOLEAN, 8, TFS(&tfs_disabled_enabled), 0x01,
NULL, HFILL}
},
{ &hf_gtpv2_arp_pl,
{"Priority Level", "gtpv2.arp_pl",
FT_UINT8, BASE_DEC, NULL, 0x3c,
NULL, HFILL}
},
{ &hf_gtpv2_arp_pci,
{"Pre-emption Capability (PCI)", "gtpv2.arp_pci",
FT_BOOLEAN, 8, TFS(&tfs_disabled_enabled), 0x40,
NULL, HFILL}
},
{ &hf_gtpv2_timer_unit,
{"Timer unit", "gtpv2.timer_unit",
FT_UINT8, BASE_DEC, VALS(gtpv2_timer_unit_vals), 0xe0,
NULL, HFILL}
},
{ &hf_gtpv2_throttling_delay_unit,
{"Throttling Delay unit", "gtpv2.throttling_delay_unit",
FT_UINT8, BASE_DEC, VALS(gtpv2_throttling_delay_unit_vals), 0xe0,
NULL, HFILL }
},
{ &hf_gtpv2_timer_value,
{"Timer value", "gtpv2.timer_value",
FT_UINT8, BASE_DEC, NULL, 0x1f,
NULL, HFILL}
},
{ &hf_gtpv2_throttling_delay_value,
{"Throttling Delay value", "gtpv2.throttling_delay_value",
FT_UINT8, BASE_DEC, NULL, 0x1f,
NULL, HFILL }
},
{ &hf_gtpv2_lapi,
{"LAPI (Low Access Priority Indication)", "gtpv2.lapi",
FT_BOOLEAN, 8, NULL, 0x01,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_higher_br_16mb_flg_len,
{"Length of Higher bitrates than 16 Mbps flag", "gtpv2.mm_context_higher_br_16mb_flg_len",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mm_context_higher_br_16mb_flg,
{"Higher bitrates than 16 Mbps flag", "gtpv2.mm_context_higher_br_16mb_flg",
FT_UINT8, BASE_DEC, VALS(gtpv2_mm_context_higher_br_16mb_flg_vals), 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mmbr_ul,
{"Max MBR/APN-AMBR for uplink", "gtpv2.mmbr_ul",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_mmbr_dl,
{"Max MBR/APN-AMBR for downlink", "gtpv2.mmbr_dl",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_pres_rep_area_action,
{"Action", "gtpv2.pres_rep_area_action.action",
FT_UINT8, BASE_DEC, VALS(gtpv2_pres_rep_area_action_vals), 0x03,
NULL, HFILL}
},
{ &hf_gtpv2_pres_rep_area_id,
{"Presence Reporting Area Identifier", "gtpv2.pres_rep_area_action.pres_rep_area_id",
FT_UINT16, BASE_HEX, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtpv2_pres_rep_area_act_no_tai,
{"Number of TAI", "gtpv2.pres_rep_area_action.no_tai",
FT_UINT8, BASE_DEC, NULL, 0xf0,
NULL, HFILL}
},
{ &hf_gtpv2_pres_rep_area_act_no_rai,
{"Number of RAI", "gtpv2.pres_rep_area_action.no_rai",
FT_UINT8, BASE_DEC, NULL, 0x0f,
NULL, HFILL}
},
{ &hf_gtpv2_pres_rep_area_act_no_m_enodeb,
{"Number of Macro eNodeB", "gtpv2.pres_rep_area_action.no_m_enodeb",
FT_UINT8, BASE_DEC, NULL, 0x3f,
NULL, HFILL}
},
{ &hf_gtpv2_pres_rep_area_act_no_h_enodeb,
{"Number of Home eNodeB", "gtpv2.pres_rep_area_action.no_h_enodeb",
FT_UINT8, BASE_DEC, NULL, 0x3f,
NULL, HFILL}
},
{ &hf_gtpv2_pres_rep_area_act_no_ecgi,
{"Number of ECGI", "gtpv2.pres_rep_area_action.no_ecgi",
FT_UINT8, BASE_DEC, NULL, 0x3f,
NULL, HFILL}
},
{ &hf_gtpv2_pres_rep_area_act_no_sai,
{"Number of SAI", "gtpv2.pres_rep_area_action.no_sai",
FT_UINT8, BASE_DEC, NULL, 0x3f,
NULL, HFILL}
},
{ &hf_gtpv2_pres_rep_area_act_no_cgi,
{"Number of CGI", "gtpv2.pres_rep_area_action.no_cgi",
FT_UINT8, BASE_DEC, NULL, 0x3f,
NULL, HFILL}
},
{ &hf_gtpv2_ksi_ps,
{ "KSI'ps", "gtpv2.ksi_ps",
FT_UINT8, BASE_HEX, NULL, 0x0f,
NULL, HFILL }
},
{ &hf_gtpv2_ck_ps,
{ "CK'ps", "gtpv2.ck_ps",
FT_BYTES, BASE_NONE, NULL, 0,
NULL, HFILL }
},
{ &hf_gtpv2_ik_ps,
{ "IK'ps", "gtpv2.ik_ps",
FT_BYTES, BASE_NONE, NULL, 0,
NULL, HFILL }
},
{ &hf_gtpv2_kc_ps,
{ "KC'ps", "gtpv2.kc_ps",
FT_BYTES, BASE_NONE, NULL, 0,
NULL, HFILL }
},
{ &hf_gtpv2_cksn_ps,
{ "CKSN'ps", "gtpv2.cksn_ps",
FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL }
},
/* Generated from convert_proto_tree_add_text.pl */
{ &hf_gtpv2_transparent_container, { "Transparent Container", "gtpv2.transparent_container", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_cksrvcc, { "CKsrvcc", "gtpv2.cksrvcc", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_iksrvcc, { "IKsrvcc", "gtpv2.iksrvcc", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_mobile_station_classmark2, { "Mobile Station Classmark2", "gtpv2.mobile_station_classmark2", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_mobile_station_classmark3, { "Mobile Station Classmark3", "gtpv2.mobile_station_classmark3", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_supported_codec_list, { "Supported Codec List", "gtpv2.supported_codec_list", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_utran_srvcc_ck_cs, { "CK'cs", "gtpv2.utran_srvcc.ck_cs", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_utran_srvcc_ik_cs, { "IK'cs", "gtpv2.utran_srvcc.ik_cs", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_utran_srvcc_kc, { "Kc'", "gtpv2.utran_srvcc.kc", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_teid_c_spare, { "Spare", "gtpv2.teid_c.spare", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_geographic_location, { "Geographic Location", "gtpv2.geographic_location", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_tmsi_bytes, { "TMSI", "gtpv2.tmsi_bytes", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_cn_id, { "CN-Id", "gtpv2.cn_id", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_eps_bearer_id_number, { "EPS Bearer ID Number", "gtpv2.eps_bearer_id_number", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_serving_gw_address_length, { "Serving GW Address Length", "gtpv2.serving_gw_address_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_charging_characteristic_remaining_octets, { "Remaining octets", "gtpv2.charging_characteristic.remaining_octets", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_trace_id, { "Trace ID", "gtpv2.trace_id", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_drx_parameter, { "DRX parameter", "gtpv2.drx_parameter", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_mm_context_sres, { "SRES'", "gtpv2.mm_context_sres", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_mm_context_kc, { "Kc'", "gtpv2.mm_context_kc", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_uplink_subscribed_ue_ambr, { "Uplink Subscribed UE AMBR", "gtpv2.uplink_subscribed_ue_ambr", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_downlink_subscribed_ue_ambr, { "Downlink Subscribed UE AMBR", "gtpv2.downlink_subscribed_ue_ambr", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_uplink_used_ue_ambr, { "Uplink Used UE AMBR", "gtpv2.uplink_used_ue_ambr", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_downlink_used_ue_ambr, { "Downlink Used UE AMBR", "gtpv2.downlink_used_ue_ambr", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_voice_domain_and_ue_usage_setting, { "Voice Domain Preference and UE's Usage Setting", "gtpv2.voice_domain_and_ue_usage_setting", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_authentication_quadruplets, { "Authentication Quadruplets", "gtpv2.authentication_quadruplets", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_authentication_quintuplets, { "Authentication Quintuplets", "gtpv2.authentication_quintuplets", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_mm_context_nh, { "NH (Next Hop)", "gtpv2.mm_context_nh", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_mm_context_ncc, { "NCC (Next Hop Chaining Count)", "gtpv2.mm_context_ncc", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL }},
{ &hf_gtpv2_nsapi08, { "NSAPI", "gtpv2.nsapi", FT_UINT8, BASE_DEC, NULL, 0x08, NULL, HFILL }},
{ &hf_gtpv2_dl_gtp_u_sequence_number, { "DL GTP-U Sequence Number", "gtpv2.dl_gtp_u_sequence_number", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_ul_gtp_u_sequence_number, { "UL GTP-U Sequence Number", "gtpv2.ul_gtp_u_sequence_number", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_send_n_pdu_number, { "Send N-PDU Number", "gtpv2.send_n_pdu_number", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_receive_n_pdu_number, { "Receive N-PDU Number", "gtpv2.receive_n_pdu_number", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_hop_counter, { "Hop Counter", "gtpv2.hop_counter", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_packet_flow_id, { "Packet Flow ID", "gtpv2.packet_flow_id", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_rrc_container, { "RRC Container", "gtpv2.rrc_container", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_upd_source_port_number, { "UPD Source Port Number", "gtpv2.upd_source_port_number", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_proprietary_value, { "Proprietary value", "gtpv2.proprietary_value", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_spare_bytes, { "Spare", "gtpv2.spare_bytes", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_dl_pdcp_sequence_number, { "DL PDCP Sequence Number", "gtpv2.dl_pdcp_sequence_number", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_ul_pdcp_sequence_number, { "UL PDCP Sequence Number", "gtpv2.ul_pdcp_sequence_number", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_gtpv2_fq_csid_node_id, { "Node-ID", "gtpv2.fq_csid_node_id", FT_UINT32, BASE_DEC, NULL, 0x00000FFF, NULL, HFILL }},
{ &hf_gtpv2_fq_csid_mcc_mnc, { "MCC+MNC", "gtpv2.fq_csid_mcc_mnc", FT_UINT32, BASE_DEC, NULL, 0xFFFFF000, 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_overload_control_information,
&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_trigg_sgw,
&ett_gtpv2_tra_info_trigg_pgw,
&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,
&ett_gtpv2_bss_con,
&ett_gtpv2_utran_con,
&ett_gtpv2_eutran_con,
&ett_gtpv2_mm_context_auth_qua,
&ett_gtpv2_mm_context_auth_qui,
&ett_gtpv2_mm_context_auth_tri,
&ett_gtpv2_mm_context_net_cap,
&ett_gtpv2_ms_network_capability,
&ett_gtpv2_vd_pref,
&ett_gtpv2_access_rest_data,
&ett_gtpv2_qua,
&ett_gtpv2_qui,
&ett_gtpv2_preaa_tais,
&ett_gtpv2_preaa_menbs,
&ett_gtpv2_preaa_henbs,
&ett_gtpv2_preaa_ecgis,
&ett_gtpv2_preaa_rais,
&ett_gtpv2_preaa_sais,
&ett_gtpv2_preaa_cgis,
&ett_gtpv2_load_control_inf,
};
static ei_register_info ei[] = {
{ &ei_gtpv2_ie_data_not_dissected, { "gtpv2.ie_data_not_dissected", PI_UNDECODED, PI_NOTE, "IE data not dissected yet", EXPFILL }},
{ &ei_gtpv2_ie_len_invalid, { "gtpv2.ie_len_invalid", PI_PROTOCOL, PI_ERROR, "Wrong length", EXPFILL }},
{ &ei_gtpv2_source_type_unknown, { "gtpv2.source_type.unknown", PI_PROTOCOL, PI_ERROR, "Unknown source type", EXPFILL }},
{ &ei_gtpv2_fq_csid_type_bad, { "gtpv2.fq_csid_type.unknown", PI_PROTOCOL, PI_ERROR, "Wrong Node-ID Type", EXPFILL }},
{ &ei_gtpv2_mbms_session_duration_days, { "gtpv2.mbms_session_duration_days.invalid", PI_PROTOCOL, PI_WARN, "Days out of allowed range", EXPFILL }},
{ &ei_gtpv2_mbms_session_duration_secs, { "gtpv2.mbms_session_duration_secs.unknown", PI_PROTOCOL, PI_WARN, "Seconds out of allowed range", EXPFILL }},
{ &ei_gtpv2_ie, { "gtpv2.ie_type.reserved", PI_PROTOCOL, PI_WARN, "IE type Zero is Reserved and should not be used", EXPFILL }},
};
expert_module_t* expert_gtpv2;
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));
expert_gtpv2 = expert_register_protocol(proto_gtpv2);
expert_register_field_array(expert_gtpv2, ei, array_length(ei));
/* AVP Code: 22 3GPP-User-Location-Info */
dissector_add_uint("diameter.3gpp", 22, create_dissector_handle(dissect_diameter_3gpp_uli, proto_gtpv2));
/* AVP Code: 2820 Presence-Reporting-Area-Elements-List */
dissector_add_uint("diameter.3gpp", 2820, create_dissector_handle(dissect_diameter_3gpp_presence_reporting_area_elements_list, proto_gtpv2));
register_dissector("gtpv2", dissect_gtpv2, proto_gtpv2);
/* Dissector table for private extensions */
gtpv2_priv_ext_dissector_table = register_dissector_table("gtpv2.priv_ext", "GTPv2 PRIVATE EXT", FT_UINT16, BASE_DEC, DISSECTOR_TABLE_NOT_ALLOW_DUPLICATE);
}
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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