/* packet-gtp.c * * Routines for GTP dissection * Copyright 2001, Michal Melerowicz * Nicolas Balkota * * Updates and corrections: * Copyright 2006 - 2009, Anders Broman * * Added Bearer control mode dissection: * Copyright 2011, Grzegorz Szczytowski * * Updates and corrections: * Copyright 2011-2013, Anders Broman * * PDCP PDU number extension header support added by Martin Isaksson * * Control Plane Request-Response tracking code Largely based on similar routines in * packet-ldap.c by Ronnie Sahlberg * Added by Kari Tiirikainen * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * SPDX-License-Identifier: GPL-2.0-or-later * * GTP v0: 3GPP TS 09.60 * * http://www.3gpp.org/ftp/Specs/html-info/0960.htm * * GTP v1: 3GPP TS 29.060 * * http://www.3gpp.org/ftp/Specs/html-info/29060.htm * * GTP': 3GPP TS 32.295 * * http://www.3gpp.org/ftp/Specs/html-info/32295.htm */ #include "config.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "packet-radius.h" #include "packet-gsm_a_common.h" #include "packet-gsm_map.h" #include "packet-gprscdr.h" #include "packet-bssgp.h" #include "packet-rrc.h" #include "packet-e212.h" #include "packet-e164.h" #include "packet-gtp.h" #include "packet-ranap.h" #include "packet-pdcp-nr.h" #include "packet-pdcp-lte.h" #include "packet-rohc.h" void proto_register_gtp(void); void proto_reg_handoff_gtp(void); static dissector_table_t gtp_priv_ext_dissector_table; static dissector_table_t gtp_cdr_fmt_dissector_table; static dissector_table_t gtp_hdr_ext_dissector_table; static dissector_handle_t gtp_handle, gtp_prime_handle; static dissector_handle_t nrup_handle; #define GTPv0_PORT 3386 #define GTPv1C_PORT 2123 /* 3G Control PDU */ #define GTPv1U_PORT 2152 /* 3G T-PDU */ #define GTPv0_HDR_LENGTH 20 #define GTPv1_HDR_LENGTH 12 #define GTP_PRIME_HDR_LENGTH 6 /* to check compliance with ETSI */ #define GTP_MANDATORY 1 #define GTP_OPTIONAL 2 #define GTP_CONDITIONAL 4 #define GTP_TPDU_AS_NONE -1 #define GTP_TPDU_AS_TPDU_HEUR 0 #define GTP_TPDU_AS_PDCP_LTE 1 #define GTP_TPDU_AS_PDCP_NR 2 #define GTP_TPDU_AS_SYNC 3 #define GTP_TPDU_AS_ETHERNET 4 #define GTP_TPDU_AS_CUSTOM 5 static bool g_gtp_over_tcp = true; bool g_gtp_session; static unsigned pref_pair_matching_max_interval_ms; /* Default: disable */ static unsigned g_gtpv0_port = GTPv0_PORT; static unsigned g_gtpv1c_port = GTPv1C_PORT; static unsigned g_gtpv1u_port = GTPv1U_PORT; static int proto_gtp; static int proto_gtpprime; /*KTi*/ static int hf_gtp_ie_id; static int hf_gtp_response_in; static int hf_gtp_response_to; static int hf_gtp_time; static int hf_gtp_apn; static int hf_gtp_cause; static int hf_gtp_chrg_char; static int hf_gtp_chrg_char_s; static int hf_gtp_chrg_char_n; static int hf_gtp_chrg_char_p; static int hf_gtp_chrg_char_f; static int hf_gtp_chrg_char_h; static int hf_gtp_chrg_char_r; static int hf_gtp_chrg_id; static int hf_gtp_chrg_ipv4; static int hf_gtp_chrg_ipv6; static int hf_gtp_ext_flow_label; static int hf_gtp_ext_id; static int hf_gtp_ext_val; static int hf_gtp_ext_hdr; static int hf_gtp_ext_hdr_next; static int hf_gtp_ext_hdr_length; static int hf_gtp_ext_hdr_ran_cont; static int hf_gtp_ext_hdr_spare_bits; static int hf_gtp_ext_hdr_spare_bytes; static int hf_gtp_ext_hdr_long_pdcp_sn; static int hf_gtp_ext_hdr_xw_ran_cont; static int hf_gtp_ext_hdr_pdcpsn; static int hf_gtp_ext_hdr_udp_port; static int hf_gtp_flags; static int hf_gtp_flags_ver; static int hf_gtp_prime_flags_ver; static int hf_gtp_flags_pt; static int hf_gtp_flags_spare1; static int hf_gtp_flags_hdr_length; static int hf_gtp_flags_snn; static int hf_gtp_flags_spare2; static int hf_gtp_flags_e; static int hf_gtp_flags_s; static int hf_gtp_flags_pn; static int hf_gtp_flow_ii; static int hf_gtp_flow_label; static int hf_gtp_flow_sig; static int hf_gtp_gsn_addr_len; static int hf_gtp_gsn_addr_type; static int hf_gtp_gsn_ipv4; static int hf_gtp_gsn_ipv6; static int hf_gtp_length; static int hf_gtp_map_cause; static int hf_gtp_message_type; static int hf_gtp_ms_reason; static int hf_gtp_ms_valid; static int hf_gtp_npdu_number; static int hf_gtp_node_ipv4; static int hf_gtp_node_ipv6; static int hf_gtp_node_name; static int hf_gtp_node_realm; static int hf_gtp_nsapi; static int hf_gtp_ptmsi; static int hf_gtp_ptmsi_sig; static int hf_gtp_qos_version; static int hf_gtp_qos_spare1; static int hf_gtp_qos_delay; static int hf_gtp_qos_mean; static int hf_gtp_qos_peak; static int hf_gtp_qos_spare2; static int hf_gtp_qos_precedence; static int hf_gtp_qos_spare3; static int hf_gtp_qos_reliability; static int hf_gtp_qos_al_ret_priority; static int hf_gtp_qos_traf_class; static int hf_gtp_qos_del_order; static int hf_gtp_qos_del_err_sdu; static int hf_gtp_qos_max_sdu_size; static int hf_gtp_qos_max_ul; static int hf_gtp_qos_max_dl; static int hf_gtp_qos_res_ber; static int hf_gtp_qos_sdu_err_ratio; static int hf_gtp_qos_trans_delay; static int hf_gtp_qos_traf_handl_prio; static int hf_gtp_qos_guar_ul; static int hf_gtp_qos_guar_dl; static int hf_gtp_qos_spare4; static int hf_gtp_qos_sig_ind; static int hf_gtp_qos_src_stat_desc; static int hf_gtp_qos_arp; static int hf_gtp_qos_arp_pvi; static int hf_gtp_qos_arp_pl; static int hf_gtp_qos_arp_pci; static int hf_gtp_qos_qci; static int hf_gtp_qos_ul_mbr; static int hf_gtp_qos_dl_mbr; static int hf_gtp_qos_ul_gbr; static int hf_gtp_qos_dl_gbr; static int hf_gtp_qos_ul_apn_ambr; static int hf_gtp_qos_dl_apn_ambr; static int hf_gtp_pkt_flow_id; static int hf_gtp_rab_gtpu_dn; static int hf_gtp_rab_gtpu_up; static int hf_gtp_rab_pdu_dn; static int hf_gtp_rab_pdu_up; static int hf_gtp_uli_geo_loc_type; static int hf_gtp_cgi_ci; static int hf_gtp_sai_sac; static int hf_gtp_rai_rac; static int hf_gtp_lac; static int hf_gtp_tac; static int hf_gtp_ranap_cause; static int hf_gtp_recovery; static int hf_gtp_reorder; static int hf_gtp_rnc_ipv4; static int hf_gtp_rnc_ipv6; static int hf_gtp_rp; static int hf_gtp_rp_nsapi; static int hf_gtp_rp_sms; static int hf_gtp_rp_spare; static int hf_gtp_sel_mode; static int hf_gtp_seq_number; static int hf_gtp_session; static int hf_gtp_sndcp_number; static int hf_gtp_tear_ind; static int hf_gtp_teid; static int hf_gtp_teid_cp; static int hf_gtp_uplink_teid_cp; static int hf_gtp_teid_data; static int hf_gtp_uplink_teid_data; static int hf_gtp_teid_ii; static int hf_gtp_tid; static int hf_gtp_tlli; static int hf_gtp_tr_comm; static int hf_gtp_trace_ref; static int hf_gtp_trace_type; static int hf_gtp_user_addr_pdp_org; static int hf_gtp_user_addr_pdp_type; static int hf_gtp_user_ipv4; static int hf_gtp_user_ipv6; static int hf_gtp_security_mode; static int hf_gtp_no_of_vectors; static int hf_gtp_cipher_algorithm; static int hf_gtp_cksn_ksi; static int hf_gtp_cksn; static int hf_gtp_ksi; static int hf_gtp_ext_length; static int hf_gtp_utran_field; static int hf_gtp_ext_apn_res; static int hf_gtp_ext_rat_type; static int hf_gtp_ext_imeisv; static int hf_gtp_target_rnc_id; static int hf_gtp_target_ext_rnc_id; static int hf_gtp_bssgp_cause; static int hf_gtp_bssgp_ra_discriminator; static int hf_gtp_sapi; static int hf_gtp_xid_par_len; static int hf_gtp_rep_act_type; static int hf_gtp_correlation_id; static int hf_gtp_earp_pci; static int hf_gtp_earp_pl; static int hf_gtp_earp_pvi; static int hf_gtp_ext_comm_flags_uasi; static int hf_gtp_ext_comm_flags_bdwi; static int hf_gtp_ext_comm_flags_pcri; static int hf_gtp_ext_comm_flags_vb; static int hf_gtp_ext_comm_flags_retloc; static int hf_gtp_ext_comm_flags_cpsr; static int hf_gtp_ext_comm_flags_ccrsi; static int hf_gtp_ext_comm_flags_unauthenticated_imsi; static int hf_gtp_csg_id; static int hf_gtp_access_mode; static int hf_gtp_cmi; static int hf_gtp_csg_inf_rep_act_ucicsg; static int hf_gtp_csg_inf_rep_act_ucishc; static int hf_gtp_csg_inf_rep_act_uciuhc; static int hf_gtp_ext_comm_flags_II_pnsi; static int hf_gtp_ext_comm_flags_II_dtci; static int hf_gtp_ext_comm_flags_II_pmtsmi; static int hf_gtp_ext_comm_flags_II_spare; static int hf_gtp_ciot_opt_sup_ind_sgni_pdn; static int hf_gtp_ciot_opt_sup_ind_scni_pdn; static int hf_gtp_ciot_opt_sup_ind_spare; static int hf_gtp_up_fun_sel_ind_flags_dcnr; static int hf_gtp_up_fun_sel_ind_flags_spare; static int hf_gtp_cdr_app; static int hf_gtp_cdr_rel; static int hf_gtp_cdr_ver; static int hf_gtp_cdr_rel_ext; static int hf_gtp_cdr_length; static int hf_gtp_cdr_context; static int hf_gtp_cmn_flg_ppc; static int hf_gtp_cmn_flg_mbs_srv_type; static int hf_gtp_cmn_flg_mbs_ran_pcd_rdy; static int hf_gtp_cmn_flg_mbs_cnt_inf; static int hf_gtp_cmn_flg_nrsn; static int hf_gtp_cmn_flg_no_qos_neg; static int hf_gtp_cmn_flg_upgrd_qos_sup; static int hf_gtp_cmn_flg_dual_addr_bearer_flg; static int hf_gtp_linked_nsapi; static int hf_gtp_enh_nsapi; static int hf_gtp_tmgi; static int hf_gtp_mbms_ses_dur_days; static int hf_gtp_mbms_ses_dur_s; static int hf_gtp_no_of_mbms_sa_codes; static int hf_gtp_mbms_sa_code; static int hf_gtp_trace_ref2; static int hf_gtp_trace_rec_session_ref; static int hf_gtp_trace_triggers_ggsn_pdp; static int hf_gtp_trace_triggers_ggsn_mbms; static int hf_gtp_trace_triggers_ggsn; static int hf_gtp_trace_depth; static int hf_gtp_trace_loi_ggsn_gmb; static int hf_gtp_trace_loi_ggsn_gi; static int hf_gtp_trace_loi_ggsn_gn; static int hf_gtp_trace_loi_ggsn; static int hf_gtp_trace_activity_control; static int hf_gtp_hop_count; static int hf_gtp_mbs_2g_3g_ind; static int hf_gtp_trace_triggers_bm_sc_mbms; static int hf_gtp_trace_triggers_bm_sc; static int hf_gtp_trace_loi_bm_sc_gmb; static int hf_gtp_trace_loi_bm_sc; static int hf_gtp_time_2_dta_tr; static int hf_gtp_target_lac; static int hf_gtp_target_rac; static int hf_gtp_target_ci; static int hf_gtp_source_type; static int hf_gtp_source_lac; static int hf_gtp_source_rac; static int hf_gtp_source_ci; static int hf_gtp_source_rnc_id; static int hf_gtp_ext_ei; static int hf_gtp_ext_gcsi; static int hf_gtp_ext_dti; static int hf_gtp_ra_prio_lcs; static int hf_gtp_bcm; static int hf_gtp_fqdn; static int hf_gtp_rim_routing_addr; static int hf_gtp_mbms_flow_id; static int hf_gtp_mbms_dist_indic; static int hf_gtp_ext_apn_ambr_ul; static int hf_gtp_ext_apn_ambr_dl; static int hf_gtp_ext_sub_ue_ambr_ul; static int hf_gtp_ext_sub_ue_ambr_dl; static int hf_gtp_ext_auth_ue_ambr_ul; static int hf_gtp_ext_auth_ue_ambr_dl; static int hf_gtp_ext_auth_apn_ambr_ul; static int hf_gtp_ext_auth_apn_ambr_dl; static int hf_gtp_ext_ggsn_back_off_time_units; static int hf_gtp_ext_ggsn_back_off_timer; static int hf_gtp_lapi; static int hf_gtp_higher_br_16mb_flg; static int hf_gtp_max_mbr_apn_ambr_ul; static int hf_gtp_max_mbr_apn_ambr_dl; static int hf_gtp_ext_enb_type; static int hf_gtp_macro_enodeb_id; static int hf_gtp_home_enodeb_id; static int hf_gtp_dummy_octets; static int hf_pdcp_cont; static int hf_gtp_ext_hdr_pdu_ses_cont_pdu_type; static int hf_gtp_ext_hdr_pdu_ses_cont_qmp; static int hf_gtp_ext_hdr_pdu_ses_cont_snp_dl; static int hf_gtp_ext_hdr_pdu_ses_cont_msnp; static int hf_gtp_ext_hdr_pdu_ses_cont_ppp; static int hf_gtp_ext_hdr_pdu_ses_cont_rqi; static int hf_gtp_ext_hdr_pdu_ses_cont_qos_flow_id; static int hf_gtp_ext_hdr_pdu_ses_cont_ppi; static int hf_gtp_ext_hdr_pdu_ses_cont_dl_send_time_stamp; static int hf_gtp_ext_hdr_pdu_ses_cont_dl_qfi_sn; static int hf_gtp_ext_hdr_pdu_ses_cont_dl_mbs_qfi_sn; static int hf_gtp_ext_hdr_pdu_ses_cont_dl_delay_ind; static int hf_gtp_ext_hdr_pdu_ses_cont_ul_delay_ind; static int hf_gtp_ext_hdr_pdu_ses_cont_snp_ul; static int hf_gtp_ext_hdr_pdu_ses_cont_n3_n9_delay_ind; static int hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag; static int hf_gtp_ext_hdr_pdu_ses_cont_dl_send_time_stamp_repeat; static int hf_gtp_ext_hdr_pdu_ses_cont_dl_recv_time_stamp; static int hf_gtp_ext_hdr_pdu_ses_cont_ul_send_time_stamp; static int hf_gtp_ext_hdr_pdu_ses_cont_dl_delay_result; static int hf_gtp_ext_hdr_pdu_ses_cont_ul_delay_result; static int hf_gtp_ext_hdr_pdu_ses_cont_ul_qfi_sn; static int hf_gtp_ext_hdr_pdu_ses_cont_n3_n9_delay_result; static int hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_7; static int hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_6; static int hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_5; static int hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_4; static int hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_3; static int hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_2; static int hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_1; static int hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_0; static int hf_gtp_ext_hdr_pdu_ses_cont_d1_ul_pdcp_delay_result_ind; static int hf_gtp_spare_b0; static int hf_gtp_spare_b4b0; static int hf_gtp_spare_b7b1; static int hf_gtp_rnc_ip_addr_v4; static int hf_gtp_rnc_ip_addr_v6; static int hf_gtp_ms_cm_2_len; static int hf_gtp_ms_cm_3_len; static int hf_gtp_sup_codec_lst_len; static int hf_gtp_add_flg_for_srvcc_ics; static int hf_gtp_sel_mode_val; static int hf_gtp_uli_timestamp; static int hf_gtp_lhn_id; static int hf_gtp_sel_entity; static int hf_gtp_ue_usage_type_value; static int hf_gtp_scef_id_length; static int hf_gtp_scef_id; static int hf_gtp_iov_updates_counter; static int hf_gtp_mapped_ue_usage_type; /* Generated from convert_proto_tree_add_text.pl */ static int hf_gtp_rfsp_index; static int hf_gtp_quintuplet_ciphering_key; static int hf_gtp_kc; static int hf_gtp_rand; static int hf_gtp_pdp_context_identifier; static int hf_gtp_receive_n_pdu_number; static int hf_gtp_container_length; static int hf_gtp_quintuplets_length; static int hf_gtp_auth; static int hf_gtp_tft_length; static int hf_gtp_ggsn_address_for_control_plane_ipv4; static int hf_gtp_ggsn_address_for_control_plane_ipv6; static int hf_gtp_ggsn_address_for_user_traffic_ipv4; static int hf_gtp_ggsn_address_for_user_traffic_ipv6; static int hf_gtp_integrity_key_ik; static int hf_gtp_gsn_address_information_element_length; static int hf_gtp_reordering_required; static int hf_gtp_sres; static int hf_gtp_data_record_format; static int hf_gtp_timezone; static int hf_gtp_timezone_dst; static int hf_gtp_authentication_length; static int hf_gtp_send_n_pdu_number; static int hf_gtp_sequence_number_up; static int hf_gtp_pdp_address_length; static int hf_gtp_transaction_identifier; static int hf_gtp_xres_length; static int hf_gtp_ggsn_address_length; static int hf_gtp_apn_length; static int hf_gtp_sequence_number_down; static int hf_gtp_pdp_address_ipv4; static int hf_gtp_activity_status_indicator; static int hf_gtp_pdp_type; static int hf_gtp_quintuplet_integrity_key; static int hf_gtp_pdp_address_ipv6; static int hf_gtp_rab_setup_length; static int hf_gtp_number_of_data_records; static int hf_gtp_ciphering_key_kc; static int hf_gtp_pdp_cntxt_sapi; static int hf_gtp_xres; static int hf_gtp_pdp_organization; static int hf_gtp_node_address_length; static int hf_gtp_gsn_address_length; static int hf_gtp_vplmn_address_allowed; static int hf_gtp_uplink_flow_label_signalling; static int hf_gtp_extended_end_user_address; static int hf_gtp_ciphering_key_ck; static int hf_gtp_fqdn_length; static int hf_gtp_seq_num_released; static int hf_gtp_seq_num_canceled; static int hf_gtp_requests_responded; static int hf_gtp_hyphen_separator; static int hf_gtp_ms_network_cap_content_len; static int hf_gtp_iei; static int hf_gtp_iei_mobile_id_len; static int hf_gtp_qos_umts_length; static int hf_gtp_num_ext_hdr_types; static int hf_gtp_ext_hdr_type; static int hf_gtp_tpdu_data; static int hf_gtp_sgsn_address_for_control_plane_ipv4; static int hf_gtp_sgsn_address_for_control_plane_ipv6; static int hf_gtp_sgsn_address_for_user_traffic_ipv4; static int hf_gtp_sgsn_address_for_user_traffic_ipv6; /* Initialize the subtree pointers */ static int ett_gtp; static int ett_gtp_flags; static int ett_gtp_ext; static int ett_gtp_ext_hdr; static int ett_gtp_qos; static int ett_gtp_qos_arp; static int ett_gtp_flow_ii; static int ett_gtp_rp; static int ett_gtp_pkt_flow_id; static int ett_gtp_trip; static int ett_gtp_quint; static int ett_gtp_proto; static int ett_gtp_gsn_addr; static int ett_gtp_tft; static int ett_gtp_rab_setup; static int ett_gtp_hdr_list; static int ett_gtp_node_addr; static int ett_gtp_rel_pack; static int ett_gtp_can_pack; static int ett_gtp_data_resp; static int ett_gtp_drx; static int ett_gtp_net_cap; static int ett_gtp_tmgi; static int ett_gtp_cdr_ver; static int ett_gtp_cdr_dr; static int ett_gtp_mm_cntxt; static int ett_gtp_utran_cont; static int ett_gtp_nr_ran_cont; static int ett_gtp_pdcp_no_conf; static int ett_pdu_session_cont; static int ett_gtp_trace_triggers_ggsn; static int ett_gtp_trace_loi_ggsn; static int ett_gtp_trace_triggers_bm_sc; static int ett_gtp_trace_loi_bm_sc; static int ett_gtp_bss_cont; static int ett_gtp_lst_set_up_pfc; static int ett_gtp_rrc_cont; static int ett_gtp_rim_routing_adr; static expert_field ei_gtp_ext_hdr_pdcpsn; static expert_field ei_gtp_ext_length_mal; static expert_field ei_gtp_ext_length_warn; static expert_field ei_gtp_undecoded; static expert_field ei_gtp_message_not_found; static expert_field ei_gtp_field_not_present; static expert_field ei_gtp_wrong_next_field; static expert_field ei_gtp_field_not_support_in_version; static expert_field ei_gtp_guaranteed_bit_rate_value; static expert_field ei_gtp_max_bit_rate_value; static expert_field ei_gtp_ext_geo_loc_type; static expert_field ei_gtp_iei; static expert_field ei_gtp_unknown_extension_header; static expert_field ei_gtp_unknown_pdu_type; static expert_field ei_gtp_source_type_unknown; static expert_field ei_gtp_cdr_rel_ext_invalid; static const range_string assistance_info_type[] = { { 0, 0, "UNKNOWN" }, { 1, 1, "Average CQL" }, { 2, 2, "Average HARQ Failure" }, { 3, 3, "Average HARQ Retransmissions" }, { 4, 4, "DL Radio Quality Index" }, { 5, 5, "UL Radio Quality Index" }, { 6, 6, "Power Headroom Report" }, { 7, 228, "reserved for future value extensions" }, { 229, 255, "reserved for test purposes" }, { 0, 0, NULL} }; /* NRUP - TS 38.425 */ /* NR-U RAN Container */ static int proto_nrup; static int hf_nrup_pdu_type; static int hf_nrup_spr_bit_extnd_flag; static int hf_nrup_dl_discrd_blks; static int hf_nrup_dl_flush; static int hf_nrup_rpt_poll; static int hf_nrup_retransmission_flag; static int hf_nrup_ass_inf_rep_poll_flag; static int hf_nrup_spare; static int hf_nrup_request_out_of_seq_report; static int hf_nrup_report_delivered; static int hf_nrup_user_data_existence_flag; static int hf_nrup_nr_u_seq_num; static int hf_nrup_dl_disc_nr_pdcp_pdu_sn; static int hf_nrup_dl_disc_num_blks; static int hf_nrup_dl_disc_nr_pdcp_pdu_sn_start; static int hf_nrup_dl_disc_blk_sz; static int hf_nrup_dl_report_nr_pdcp_pdu_sn; static int hf_nrup_high_tx_nr_pdcp_sn_ind; static int hf_nrup_high_delivered_nr_pdcp_sn_ind; static int hf_nrup_final_frame_ind; static int hf_nrup_lost_pkt_rpt; static int hf_nrup_high_retx_nr_pdcp_sn_ind; static int hf_nrup_high_delivered_retx_nr_pdcp_sn_ind; static int hf_nrup_cause_rpt; static int hf_nrup_delivered_nr_pdcp_sn_range_ind; static int hf_nrup_data_rate_ind; static int hf_nrup_desrd_buff_sz_data_radio_bearer; static int hf_nrup_desrd_data_rate; static int hf_nrup_num_lost_nru_seq_num; static int hf_nrup_start_lost_nru_seq_num; static int hf_nrup_end_lost_nru_seq_num; static int hf_nrup_high_success_delivered_nr_pdcp_sn; static int hf_nrup_high_tx_nr_pdcp_sn; static int hf_nrup_cause_val; static int hf_nrup_high_success_delivered_retx_nr_pdcp_sn; static int hf_nrup_high_retx_nr_pdcp_sn; static int hf_nrup_pdcp_duplication_ind; static int hf_nrup_assistance_information_ind; static int hf_nrup_ul_delay_ind; static int hf_nrup_dl_delay_ind; static int hf_nrup_spare_2; static int hf_nrup_pdcp_duplication_activation_suggestion; static int hf_nrup_num_assistance_info_fields; static int hf_nrup_assistance_information_type; static int hf_nrup_num_octets_radio_qa_info; static int hf_nrup_radio_qa_info; static int hf_nrup_ul_delay_du_result; static int hf_nrup_dl_delay_du_result; static int ett_nrup; typedef struct { int8_t rim_routing_addr_disc; } gtp_private_data_t; static gtp_private_data_t* gtp_get_private_data(packet_info *pinfo) { gtp_private_data_t *gtp_data = (gtp_private_data_t*)p_get_proto_data(wmem_file_scope(), pinfo, proto_gtp, 0); if (!gtp_data) { gtp_data = wmem_new(wmem_file_scope(), gtp_private_data_t); gtp_data->rim_routing_addr_disc = -1; p_add_proto_data(wmem_file_scope(), pinfo, proto_gtp, 0, gtp_data); } return gtp_data; } /* --- PDCP DECODE ADDITIONS --- */ static bool pdcp_uat_fld_ip_chk_cb(void* r _U_, const char* ipaddr, unsigned len _U_, const void* u1 _U_, const void* u2 _U_, char** err) { ws_in4_addr ip4_addr; ws_in6_addr ip6_addr; /* Check for a valid IPv4 or IPv6 address */ if (ipaddr && (ws_inet_pton6(ipaddr, &ip6_addr) || ws_inet_pton4(ipaddr, &ip4_addr))) { *err = NULL; return true; } *err = ws_strdup_printf("No valid IP address given"); return false; } #define PDCP_TEID_WILDCARD "*" static bool pdcp_uat_fld_teid_chk_cb(void* r _U_, const char* teid, unsigned len _U_, const void* u1 _U_, const void* u2 _U_, char** err) { if (teid) { uint32_t val; /* Check if it is a wildcard TEID */ if (!strcmp(teid, PDCP_TEID_WILDCARD)) { *err = NULL; return true; } /* Check if it is a valid 32bits unsigned integer */ if (ws_basestrtou32(teid, NULL, &val, 0)) { *err = NULL; return true; } } *err = ws_strdup_printf("No valid TEID given"); return false; } typedef struct { char *ip_addr_str; address ip_address; char *teid_str; bool teid_wildcard; uint32_t teid; unsigned direction; unsigned header_present; enum pdcp_plane plane; unsigned lte_sn_length; unsigned rohc_compression; //unsigned rohc_mode; unsigned rohc_profile; /* One approach would be to just use the TEID, but it is 32 bits and would need to be * truncated to (ultimately) 16 bits to be used as a UEId for PDCP */ uint32_t ue_id; unsigned rb_id; } uat_pdcp_lte_keys_record_t; /* N.B. this is an array/table of the struct above, where IP address + TEID is the key */ static uat_pdcp_lte_keys_record_t *uat_pdcp_lte_keys_records; static bool pdcp_lte_update_cb(void *r, char **err) { uat_pdcp_lte_keys_record_t* rec = (uat_pdcp_lte_keys_record_t *)r; ws_in4_addr ip4_addr; ws_in6_addr ip6_addr; if (!strcmp(rec->teid_str, PDCP_TEID_WILDCARD)) { rec->teid_wildcard = true; rec->teid = 0; } else if (ws_basestrtou32(rec->teid_str, NULL, &rec->teid, 0)) { rec->teid_wildcard = false; } else { if (err) *err = ws_strdup_printf("No valid TEID given"); return false; } free_address_wmem(wmem_epan_scope(), &rec->ip_address); if (ws_inet_pton6(rec->ip_addr_str, &ip6_addr)) { alloc_address_wmem(wmem_epan_scope(), &rec->ip_address, AT_IPv6, sizeof(ws_in6_addr), &ip6_addr); } else if (ws_inet_pton4(rec->ip_addr_str, &ip4_addr)) { alloc_address_wmem(wmem_epan_scope(), &rec->ip_address, AT_IPv4, sizeof(ws_in4_addr), &ip4_addr); } else { if (err) *err = ws_strdup_printf("No valid IP address given"); return false; } /* Range-check rb */ if ((rec->rb_id < 1) || (rec->rb_id > 10)) { if (err) *err = ws_strdup_printf("RB Id must be in range [1,10]"); return false; } /* Range-check ueid */ if ((rec->ue_id < 1) || (rec->ue_id > 65535)) { if (err) *err = ws_strdup_printf("UEId must be in range [1,65535]"); return false; } return true; } static void *pdcp_lte_copy_cb(void *n, const void *o, size_t len _U_) { uat_pdcp_lte_keys_record_t* new_rec = (uat_pdcp_lte_keys_record_t *)n; const uat_pdcp_lte_keys_record_t* old_rec = (const uat_pdcp_lte_keys_record_t *)o; /* Copy UAT fields */ new_rec->ip_addr_str = g_strdup(old_rec->ip_addr_str); clear_address(&new_rec->ip_address); new_rec->teid_str = g_strdup(old_rec->teid_str); new_rec->direction = old_rec->direction; new_rec->header_present = old_rec->header_present; new_rec->plane = old_rec->plane; new_rec->lte_sn_length = old_rec->lte_sn_length; new_rec->rohc_compression = old_rec->rohc_compression; //new_rec->rohc_mode = old_rec->rohc_mode; new_rec->rohc_profile = old_rec->rohc_profile; new_rec->ue_id = old_rec->ue_id; new_rec->rb_id = old_rec->rb_id; pdcp_lte_update_cb(new_rec, NULL); return new_rec; } static void pdcp_lte_free_cb(void *r) { uat_pdcp_lte_keys_record_t* rec = (uat_pdcp_lte_keys_record_t *)r; g_free(rec->ip_addr_str); g_free(rec->teid_str); free_address_wmem(wmem_epan_scope(), &rec->ip_address); } #define PDCP_SN_LENGTH_12_BITS_STR "12 bits" static const value_string vs_pdcp_lte_sn_length[] = { {PDCP_SN_LENGTH_5_BITS, "5 bits"}, {PDCP_SN_LENGTH_7_BITS, "7 bits"}, {PDCP_SN_LENGTH_12_BITS, PDCP_SN_LENGTH_12_BITS_STR}, {PDCP_SN_LENGTH_15_BITS, "15 bits"}, {PDCP_SN_LENGTH_18_BITS, "18 bits"}, {0, NULL} }; /* Struct for saving PDCP-NR information about specific TEID */ typedef struct { char *ip_addr_str; address ip_address; char *teid_str; bool teid_wildcard; uint32_t teid; unsigned direction; /* PDCP_NR_(U|D)L_sdap_hdr_PRESENT bitmask */ unsigned sdap_header_present; unsigned mac_i_present; enum pdcp_nr_plane plane; unsigned pdcp_nr_sn_length; unsigned rohc_compression; //unsigned rohc_mode; unsigned rohc_profile; /* One approach would be to just use the TEID, but it is 32 bits and would need to be * truncated to (ultimately) 16 bits to be used as a UEId for PDCP */ uint32_t ue_id; unsigned rb_id; } uat_pdcp_nr_keys_record_t; /* N.B. this is an array/table of the struct above, where IP address + TEID is the key */ static uat_pdcp_nr_keys_record_t *uat_pdcp_nr_keys_records; static bool pdcp_nr_update_cb(void *r, char **err) { uat_pdcp_nr_keys_record_t* rec = (uat_pdcp_nr_keys_record_t *)r; ws_in4_addr ip4_addr; ws_in6_addr ip6_addr; if (!strcmp(rec->teid_str, PDCP_TEID_WILDCARD)) { rec->teid_wildcard = true; rec->teid = 0; } else if (ws_basestrtou32(rec->teid_str, NULL, &rec->teid, 0)) { rec->teid_wildcard = false; } else { if (err) *err = ws_strdup_printf("No valid TEID given"); return false; } free_address_wmem(wmem_epan_scope(), &rec->ip_address); if (ws_inet_pton6(rec->ip_addr_str, &ip6_addr)) { alloc_address_wmem(wmem_epan_scope(), &rec->ip_address, AT_IPv6, sizeof(ws_in6_addr), &ip6_addr); } else if (ws_inet_pton4(rec->ip_addr_str, &ip4_addr)) { alloc_address_wmem(wmem_epan_scope(), &rec->ip_address, AT_IPv4, sizeof(ws_in4_addr), &ip4_addr); } else { if (err) *err = ws_strdup_printf("No valid IP address given"); return false; } /* Range-check rb */ if ((rec->rb_id < 1) || (rec->rb_id > 32)) { if (err) *err = ws_strdup_printf("RB Id must be in range [1,32]"); return false; } /* Range-check ueid */ if ((rec->ue_id < 1) || (rec->ue_id > 65535)) { if (err) *err = ws_strdup_printf("UEId must be in range [1,65535]"); return false; } return true; } static void *pdcp_nr_copy_cb(void *n, const void *o, size_t len _U_) { uat_pdcp_nr_keys_record_t* new_rec = (uat_pdcp_nr_keys_record_t *)n; const uat_pdcp_nr_keys_record_t* old_rec = (const uat_pdcp_nr_keys_record_t *)o; /* Copy UAT fields */ new_rec->ip_addr_str = g_strdup(old_rec->ip_addr_str); clear_address(&new_rec->ip_address); /* not copying address.. */ new_rec->teid_str = g_strdup(old_rec->teid_str); new_rec->direction = old_rec->direction; new_rec->sdap_header_present = old_rec->sdap_header_present; new_rec->mac_i_present = old_rec->mac_i_present; new_rec->plane = old_rec->plane; new_rec->pdcp_nr_sn_length = old_rec->pdcp_nr_sn_length; new_rec->rohc_compression = old_rec->rohc_compression; //new_rec->rohc_mode = old_rec->rohc_mode; new_rec->rohc_profile = old_rec->rohc_profile; new_rec->ue_id = old_rec->ue_id; new_rec->rb_id = old_rec->rb_id; pdcp_nr_update_cb(new_rec, NULL); return new_rec; } static void pdcp_nr_free_cb(void *r) { uat_pdcp_nr_keys_record_t* rec = (uat_pdcp_nr_keys_record_t *)r; g_free(rec->ip_addr_str); g_free(rec->teid_str); free_address_wmem(wmem_epan_scope(), &rec->ip_address); } #define PDCP_DIRECTION_UPLINK_STR "UL" #define PDCP_DIRECTION_DOWNLINK_STR "DL" static const value_string vs_direction[] = { { PDCP_NR_DIRECTION_UPLINK, PDCP_DIRECTION_UPLINK_STR }, { PDCP_NR_DIRECTION_DOWNLINK, PDCP_DIRECTION_DOWNLINK_STR }, { 0, NULL } }; /* Value sets for each drop-down list in the GUI */ #define PDCP_NR_SDAP_HEADER_NOT_PRESENT_STR "SDAP header NOT present" #define PDCP_NR_SDAP_HEADER_NOT_PRESENT 0 #define PDCP_NR_SDAP_HEADER_PRESENT 1 static const value_string vs_sdap_header_present[] = { { 0, PDCP_NR_SDAP_HEADER_NOT_PRESENT_STR }, { 1, "SDAP header present" }, { 0, NULL } }; #define PDCP_LTE_HEADER_NOT_PRESENT_STR "Header NOT present" #define PDCP_LTE_HEADER_PRESENT_STR "Header present" #define PDCP_LTE_HEADER_NOT_PRESENT 0 #define PDCP_LTE_HEADER_PRESENT 1 static const value_string vs_header_present[] = { { 0, PDCP_LTE_HEADER_NOT_PRESENT_STR }, { 1, PDCP_LTE_HEADER_PRESENT_STR }, { 0, NULL } }; #define MAC_I_PRESENT_FALSE_STR "MAC-I NOT present" #define MAC_I_PRESENT_TRUE_STR "MAC-I present" static const value_string vs_mac_i_present[] = { { false, MAC_I_PRESENT_FALSE_STR }, { true, MAC_I_PRESENT_TRUE_STR }, { 0, NULL } }; #define SIGNALING_PLANE_STR "Signaling plane" #define USER_PLANE_STR "User plane" static const value_string vs_pdcp_plane[] = { { NR_SIGNALING_PLANE, SIGNALING_PLANE_STR }, { NR_USER_PLANE, USER_PLANE_STR }, { 0, NULL } }; static const value_string vs_pdcp_nr_sn_length[] = { { PDCP_NR_SN_LENGTH_12_BITS, PDCP_SN_LENGTH_12_BITS_STR }, { PDCP_NR_SN_LENGTH_18_BITS, "18 bits" }, { 0, NULL } }; #define ROHC_COMPRESSION_FALSE_STR "RoHC NOT compressed" static const value_string vs_rohc_compression[] = { { false, ROHC_COMPRESSION_FALSE_STR }, { true, "RoHC compressed" }, { 0, NULL } }; //#define ROHC_MODE_NOT_SET_STR "Mode not set" //static const value_string vs_rohc_mode[] = { // { MODE_NOT_SET, ROHC_MODE_NOT_SET_STR }, // { UNIDIRECTIONAL, "Unidirectional" }, // { OPTIMISTIC_BIDIRECTIONAL, "Optimistic bidirectional" }, // { RELIABLE_BIDIRECTIONAL, "Reliable bidirectional" }, // { 0, NULL } //}; #define ROHC_PROFILE_RTP_STR "RTP (1)" #define ROHC_PROFILE_UNCOMPRESSED_STR "Uncompressed (0)" static const value_string vs_rohc_profile[] = { { ROHC_PROFILE_UNCOMPRESSED, ROHC_PROFILE_UNCOMPRESSED_STR }, { ROHC_PROFILE_RTP, ROHC_PROFILE_RTP_STR }, { ROHC_PROFILE_UDP, "UDP (2)" }, { ROHC_PROFILE_IP, "IP (4)" }, { ROHC_PROFILE_UNKNOWN, "Unknown" }, { 0, NULL } }; /* Entries added by UAT */ static uat_t * pdcp_nr_keys_uat; static unsigned num_pdcp_nr_keys_uat; /* Default values for a TEID entry */ UAT_CSTRING_CB_DEF(pdcp_nr_users, ip_addr_str, uat_pdcp_nr_keys_record_t) UAT_CSTRING_CB_DEF(pdcp_nr_users, teid_str, uat_pdcp_nr_keys_record_t) UAT_VS_DEF(pdcp_nr_users, direction, uat_pdcp_nr_keys_record_t, unsigned, PDCP_NR_DIRECTION_UPLINK, PDCP_DIRECTION_UPLINK_STR) UAT_VS_DEF(pdcp_nr_users, sdap_header_present, uat_pdcp_nr_keys_record_t, unsigned, PDCP_NR_SDAP_HEADER_NOT_PRESENT, PDCP_NR_SDAP_HEADER_NOT_PRESENT_STR) UAT_VS_DEF(pdcp_nr_users, mac_i_present, uat_pdcp_nr_keys_record_t, unsigned, false, MAC_I_PRESENT_FALSE_STR) UAT_VS_DEF(pdcp_nr_users, plane, uat_pdcp_nr_keys_record_t, enum pdcp_nr_plane, NR_USER_PLANE, USER_PLANE_STR) UAT_VS_DEF(pdcp_nr_users, pdcp_nr_sn_length, uat_pdcp_nr_keys_record_t, unsigned, PDCP_NR_SN_LENGTH_12_BITS, PDCP_SN_LENGTH_12_BITS_STR) UAT_VS_DEF(pdcp_nr_users, rohc_compression, uat_pdcp_nr_keys_record_t, unsigned, false, ROHC_COMPRESSION_FALSE_STR) //UAT_VS_DEF(pdcp_nr_users, rohc_mode, uat_pdcp_nr_keys_record_t, unsigned, MODE_NOT_SET, ROHC_MODE_NOT_SET_STR) UAT_VS_DEF(pdcp_nr_users, rohc_profile, uat_pdcp_nr_keys_record_t, unsigned, ROHC_PROFILE_UNCOMPRESSED, ROHC_PROFILE_UNCOMPRESSED_STR) UAT_DEC_CB_DEF(pdcp_nr_users, ue_id, uat_pdcp_nr_keys_record_t) UAT_DEC_CB_DEF(pdcp_nr_users, rb_id, uat_pdcp_nr_keys_record_t) static uat_pdcp_nr_keys_record_t* look_up_pdcp_nr_keys_record(packet_info *pinfo, uint32_t teidn) { unsigned int record_id; /* Look up UAT entries. N.B. linear search... */ for (record_id = 0; record_id < num_pdcp_nr_keys_uat; record_id++) { if (addresses_equal(&uat_pdcp_nr_keys_records[record_id].ip_address, &pinfo->dst) && (uat_pdcp_nr_keys_records[record_id].teid_wildcard || uat_pdcp_nr_keys_records[record_id].teid == teidn)) { return &uat_pdcp_nr_keys_records[record_id]; } } /* No match at all - return NULL */ return NULL; } /* Entries added by UAT */ static uat_t * pdcp_lte_keys_uat; static unsigned num_pdcp_lte_keys_uat; /* Default values for a TEID entry */ UAT_CSTRING_CB_DEF(pdcp_lte_users, ip_addr_str, uat_pdcp_lte_keys_record_t) UAT_CSTRING_CB_DEF(pdcp_lte_users, teid_str, uat_pdcp_lte_keys_record_t) UAT_VS_DEF(pdcp_lte_users, direction, uat_pdcp_lte_keys_record_t, unsigned, PDCP_NR_DIRECTION_UPLINK, PDCP_DIRECTION_UPLINK_STR) UAT_VS_DEF(pdcp_lte_users, header_present, uat_pdcp_lte_keys_record_t, unsigned, PDCP_LTE_HEADER_PRESENT, PDCP_LTE_HEADER_PRESENT_STR) UAT_VS_DEF(pdcp_lte_users, plane, uat_pdcp_lte_keys_record_t, enum pdcp_plane, USER_PLANE, USER_PLANE_STR) UAT_VS_DEF(pdcp_lte_users, lte_sn_length, uat_pdcp_lte_keys_record_t, unsigned, PDCP_NR_SN_LENGTH_12_BITS, PDCP_SN_LENGTH_12_BITS_STR) UAT_VS_DEF(pdcp_lte_users, rohc_compression, uat_pdcp_lte_keys_record_t, unsigned, false, ROHC_COMPRESSION_FALSE_STR) //UAT_VS_DEF(pdcp_lte_users, rohc_mode, uat_pdcp_lte_keys_record_t, unsigned, MODE_NOT_SET, ROHC_MODE_NOT_SET_STR) UAT_VS_DEF(pdcp_lte_users, rohc_profile, uat_pdcp_lte_keys_record_t, unsigned, ROHC_PROFILE_UNCOMPRESSED, ROHC_PROFILE_UNCOMPRESSED_STR) UAT_DEC_CB_DEF(pdcp_lte_users, ue_id, uat_pdcp_lte_keys_record_t) UAT_DEC_CB_DEF(pdcp_lte_users, rb_id, uat_pdcp_lte_keys_record_t) static uat_pdcp_lte_keys_record_t* look_up_pdcp_lte_keys_record(packet_info *pinfo, uint32_t teidn) { unsigned int record_id; /* Look up UAT entries. N.B. linear search... */ for (record_id = 0; record_id < num_pdcp_lte_keys_uat; record_id++) { if (addresses_equal(&uat_pdcp_lte_keys_records[record_id].ip_address, &pinfo->dst) && (uat_pdcp_lte_keys_records[record_id].teid_wildcard || uat_pdcp_lte_keys_records[record_id].teid == teidn)) { return &uat_pdcp_lte_keys_records[record_id]; } } /* No match at all - return NULL */ return NULL; } /* --- END PDCP NR DECODE ADDITIONS --- */ static bool g_gtp_etsi_order; static int dissect_tpdu_as = GTP_TPDU_AS_TPDU_HEUR; static const enum_val_t gtp_decode_tpdu_as[] = { {"none", "None", GTP_TPDU_AS_NONE}, {"tpdu heuristic", "TPDU Heuristic", GTP_TPDU_AS_TPDU_HEUR}, {"pdcp-lte", "PDCP-LTE", GTP_TPDU_AS_PDCP_LTE }, {"pdcp-nr", "PDCP-NR", GTP_TPDU_AS_PDCP_NR }, {"sync", "SYNC", GTP_TPDU_AS_SYNC}, {"eth", "ETHERNET", GTP_TPDU_AS_ETHERNET}, {"custom", "Custom", GTP_TPDU_AS_CUSTOM}, {NULL, NULL, 0} }; static int gtp_tap; static int gtpv1_tap; /* Definition of flags masks */ #define GTP_VER_MASK 0xE0 static const true_false_string gtp_hdr_length_vals = { "6-Octet Header", "20-Octet Header" }; static const value_string ver_types[] = { {0, "GTP release 97/98 version"}, {1, "GTP release 99 version"}, {2, "GTPv2-C"}, {3, "None"}, {4, "None"}, {5, "None"}, {6, "None"}, {7, "None"}, {0, NULL} }; static const value_string pt_types[] = { {0, "GTP'"}, {1, "GTP"}, {0, NULL} }; #define GTP_PT_MASK 0x10 #define GTP_SPARE1_MASK 0x0E #define GTP_SPARE2_MASK 0x08 #define GTP_E_MASK 0x04 #define GTP_S_MASK 0x02 #define GTP_SNN_MASK 0x01 #define GTP_PN_MASK 0x01 #define GTP_EXT_HDR_NO_MORE_EXT_HDRS 0x00 #define GTP_EXT_HDR_MBMS_SUPPORT_IND 0x01 #define GTP_EXT_HDR_MS_INFO_CHG_REP_SUPP_IND 0x02 #define GTP_EXT_HDR_LONG_PDCP_PDU_NUMBER 0x03 /* TS 29.281 (GTPv1-U)*/ #define GTP_EXT_HDR_SERVICE_CLASS_INDICATOR 0x20 /* TS 29.281 (GTPv1-U)*/ #define GTP_EXT_HDR_UDP_PORT 0x40 #define GTP_EXT_HDR_RAN_CONT 0x81 #define GTP_EXT_HDR_LONG_PDCP_PDU 0x82 #define GTP_EXT_HDR_XW_RAN_CONT 0x83 #define GTP_EXT_HDR_NR_RAN_CONT 0x84 #define GTP_EXT_HDR_PDU_SESSION_CONT 0x85 #define GTP_EXT_HDR_PDCP_SN 0xC0 #define GTP_EXT_HDR_SUSPEND_REQ 0xC1 #define GTP_EXT_HDR_SUSPEND_RESP 0xC2 static const value_string next_extension_header_fieldvals[] = { {GTP_EXT_HDR_NO_MORE_EXT_HDRS, "No more extension headers"}, {GTP_EXT_HDR_MBMS_SUPPORT_IND, "MBMS support indication"}, {GTP_EXT_HDR_MS_INFO_CHG_REP_SUPP_IND, "MS Info Change Reporting support indication"}, {GTP_EXT_HDR_LONG_PDCP_PDU_NUMBER, "Long PDCP PDU Number"}, {GTP_EXT_HDR_SERVICE_CLASS_INDICATOR, "Service Class Indicator"}, {GTP_EXT_HDR_UDP_PORT, "UDP Port number"}, {GTP_EXT_HDR_RAN_CONT,"RAN container"}, {GTP_EXT_HDR_LONG_PDCP_PDU,"Long PDCP PDU number"}, {GTP_EXT_HDR_XW_RAN_CONT,"Xw RAN container"}, {GTP_EXT_HDR_NR_RAN_CONT,"NR RAN container"}, {GTP_EXT_HDR_PDU_SESSION_CONT,"PDU Session container"}, {GTP_EXT_HDR_PDCP_SN, "PDCP PDU number"}, {GTP_EXT_HDR_SUSPEND_REQ, "Suspend Request"}, {GTP_EXT_HDR_SUSPEND_RESP, "Suspend Response"}, {0, NULL} }; /* Definition of 3G charging characteristics masks */ #define GTP_MASK_CHRG_CHAR_S 0xF000 #define GTP_MASK_CHRG_CHAR_N 0x0800 #define GTP_MASK_CHRG_CHAR_P 0x0400 #define GTP_MASK_CHRG_CHAR_F 0x0200 #define GTP_MASK_CHRG_CHAR_H 0x0100 #define GTP_MASK_CHRG_CHAR_R 0x00FF /* Definition of GSN Address masks */ #define GTP_EXT_GSN_ADDR_TYPE_MASK 0xC0 #define GTP_EXT_GSN_ADDR_LEN_MASK 0x3F /* Definition of QoS masks */ #define GTP_EXT_QOS_SPARE1_MASK 0xC0 #define GTP_EXT_QOS_DELAY_MASK 0x38 #define GTP_EXT_QOS_RELIABILITY_MASK 0x07 #define GTP_EXT_QOS_PEAK_MASK 0xF0 #define GTP_EXT_QOS_SPARE2_MASK 0x08 #define GTP_EXT_QOS_PRECEDENCE_MASK 0x07 #define GTP_EXT_QOS_SPARE3_MASK 0xE0 #define GTP_EXT_QOS_MEAN_MASK 0x1F #define GTP_EXT_QOS_TRAF_CLASS_MASK 0xE0 #define GTP_EXT_QOS_DEL_ORDER_MASK 0x18 #define GTP_EXT_QOS_DEL_ERR_SDU_MASK 0x07 #define GTP_EXT_QOS_RES_BER_MASK 0xF0 #define GTP_EXT_QOS_SDU_ERR_RATIO_MASK 0x0F #define GTP_EXT_QOS_TRANS_DELAY_MASK 0xFC #define GTP_EXT_QOS_TRAF_HANDL_PRIORITY_MASK 0x03 #define GTP_EXT_QOS_SPARE4_MASK 0xE0 #define GTP_EXT_QOS_SIG_IND_MASK 0x10 #define GTP_EXT_QOS_SRC_STAT_DESC_MASK 0x0F /* Definition of Radio Priority's masks */ #define GTPv1_EXT_RP_NSAPI_MASK 0xF0 #define GTPv1_EXT_RP_SPARE_MASK 0x08 #define GTPv1_EXT_RP_MASK 0x07 #define NR_UP_DL_USER_DATA 0 #define NR_UP_DL_DATA_DELIVERY_STATUS 1 #define NR_UP_ASSISTANCE_INFORMATION_DATA 2 static const value_string nr_pdu_type_cnst[] = { {NR_UP_DL_USER_DATA, "DL User Data"}, {NR_UP_DL_DATA_DELIVERY_STATUS, "DL Data Delivery Status"}, {NR_UP_ASSISTANCE_INFORMATION_DATA, "Assistance Information Data"}, {0, NULL} }; static const range_string nr_up_cause_vals[] = { {0, 0, "Unknown"}, {1, 1, "Radio Link Outage"}, {2, 2, "Radio Link Resume"}, {3, 3, "UL Radio Link Outage"}, {4, 4, "DL Radio Link Outage"}, {5, 5, "UL Radio Link Resume"}, {6, 6, "DL Radio Link Resume"}, {7, 228, "Reserved for future value extensions"}, {228, 255, "Reserved for test purposes"}, {0, 0, NULL} }; static const true_false_string tfs_final_frame_indication = { "Frame is final", "Frame is not final" }; static const value_string gtp_message_type[] = { {GTP_MSG_UNKNOWN, "For future use"}, {GTP_MSG_ECHO_REQ, "Echo request"}, {GTP_MSG_ECHO_RESP, "Echo response"}, {GTP_MSG_VER_NOT_SUPP, "Version not supported"}, {GTP_MSG_NODE_ALIVE_REQ, "Node alive request"}, {GTP_MSG_NODE_ALIVE_RESP, "Node alive response"}, {GTP_MSG_REDIR_REQ, "Redirection request"}, {GTP_MSG_REDIR_RESP, "Redirection response"}, /* * 8-15 For future use. Shall not be sent. If received, * shall be treated as an Unknown message. */ #if 0 { 8, "Unknown message(For future use)"}, { 9, "Unknown message(For future use)"}, { 10, "Unknown message(For future use)"}, { 11, "Unknown message(For future use)"}, { 12, "Unknown message(For future use)"}, { 13, "Unknown message(For future use)"}, { 14, "Unknown message(For future use)"}, { 15, "Unknown message(For future use)"}, #endif {GTP_MSG_CREATE_PDP_REQ, "Create PDP context request"}, {GTP_MSG_CREATE_PDP_RESP, "Create PDP context response"}, {GTP_MSG_UPDATE_PDP_REQ, "Update PDP context request"}, {GTP_MSG_UPDATE_PDP_RESP, "Update PDP context response"}, {GTP_MSG_DELETE_PDP_REQ, "Delete PDP context request"}, {GTP_MSG_DELETE_PDP_RESP, "Delete PDP context response"}, {GTP_MSG_INIT_PDP_CONTEXT_ACT_REQ, "Initiate PDP Context Activation Request"}, {GTP_MSG_INIT_PDP_CONTEXT_ACT_RESP, "Initiate PDP Context Activation Response"}, /* * 24-25 For future use. Shall not be sent. If received, * shall be treated as an Unknown message. */ {GTP_MSG_DELETE_AA_PDP_REQ, "Delete AA PDP Context Request"}, {GTP_MSG_DELETE_AA_PDP_RESP, "Delete AA PDP Context Response"}, {GTP_MSG_ERR_IND, "Error indication"}, {GTP_MSG_PDU_NOTIFY_REQ, "PDU notification request"}, {GTP_MSG_PDU_NOTIFY_RESP, "PDU notification response"}, {GTP_MSG_PDU_NOTIFY_REJ_REQ, "PDU notification reject request"}, {GTP_MSG_PDU_NOTIFY_REJ_RESP, "PDU notification reject response"}, {GTP_MSG_SUPP_EXT_HDR, "Supported extension header notification"}, {GTP_MSG_SEND_ROUT_INFO_REQ, "Send routing information for GPRS request"}, {GTP_MSG_SEND_ROUT_INFO_RESP, "Send routing information for GPRS response"}, {GTP_MSG_FAIL_REP_REQ, "Failure report request"}, {GTP_MSG_FAIL_REP_RESP, "Failure report response"}, {GTP_MSG_MS_PRESENT_REQ, "Note MS GPRS present request"}, {GTP_MSG_MS_PRESENT_RESP, "Note MS GPRS present response"}, /* 38-47 For future use. Shall not be sent. If received, * shall be treated as an Unknown message. */ #if 0 { 38, "Unknown message(For future use)"}, { 39, "Unknown message(For future use)"}, { 40, "Unknown message(For future use)"}, { 41, "Unknown message(For future use)"}, { 42, "Unknown message(For future use)"}, { 43, "Unknown message(For future use)"}, { 44, "Unknown message(For future use)"}, { 45, "Unknown message(For future use)"}, { 46, "Unknown message(For future use)"}, { 47, "Unknown message(For future use)"}, #endif {GTP_MSG_IDENT_REQ, "Identification request"}, {GTP_MSG_IDENT_RESP, "Identification response"}, {GTP_MSG_SGSN_CNTXT_REQ, "SGSN context request"}, {GTP_MSG_SGSN_CNTXT_RESP, "SGSN context response"}, {GTP_MSG_SGSN_CNTXT_ACK, "SGSN context acknowledgement"}, {GTP_MSG_FORW_RELOC_REQ, "Forward relocation request"}, {GTP_MSG_FORW_RELOC_RESP, "Forward relocation response"}, {GTP_MSG_FORW_RELOC_COMP, "Forward relocation complete"}, {GTP_MSG_RELOC_CANCEL_REQ, "Relocation cancel request"}, {GTP_MSG_RELOC_CANCEL_RESP, "Relocation cancel response"}, {GTP_MSG_FORW_SRNS_CNTXT, "Forward SRNS context"}, {GTP_MSG_FORW_RELOC_ACK, "Forward relocation complete acknowledge"}, {GTP_MSG_FORW_SRNS_CNTXT_ACK, "Forward SRNS context acknowledge"}, {GTP_MSG_UE_REG_QUERY_REQ, "UE Registration Query Request"}, {GTP_MSG_UE_REG_QUERY_RESP, "UE Registration Query Response"}, /* 63-69 For future use. Shall not be sent. If received, * shall be treated as an Unknown message. */ #if 0 { 63, "Unknown message(For future use)"}, { 64, "Unknown message(For future use)"}, { 65, "Unknown message(For future use)"}, { 66, "Unknown message(For future use)"}, { 67, "Unknown message(For future use)"}, { 68, "Unknown message(For future use)"}, { 69, "Unknown message(For future use)"}, #endif {GTP_MSG_RAN_INFO_RELAY, "RAN Information Relay"}, /* 71-95 For future use. Shall not be sent. If received, * shall be treated as an Unknown message. */ #if 0 { 71, "Unknown message(For future use)"}, { 72, "Unknown message(For future use)"}, { 73, "Unknown message(For future use)"}, { 74, "Unknown message(For future use)"}, { 75, "Unknown message(For future use)"}, { 76, "Unknown message(For future use)"}, { 77, "Unknown message(For future use)"}, { 78, "Unknown message(For future use)"}, { 79, "Unknown message(For future use)"}, { 80, "Unknown message(For future use)"}, { 81, "Unknown message(For future use)"}, { 82, "Unknown message(For future use)"}, { 83, "Unknown message(For future use)"}, { 84, "Unknown message(For future use)"}, { 85, "Unknown message(For future use)"}, { 86, "Unknown message(For future use)"}, { 87, "Unknown message(For future use)"}, { 88, "Unknown message(For future use)"}, { 89, "Unknown message(For future use)"}, { 90, "Unknown message(For future use)"}, { 91, "Unknown message(For future use)"}, { 92, "Unknown message(For future use)"}, { 93, "Unknown message(For future use)"}, { 94, "Unknown message(For future use)"}, { 95, "Unknown message(For future use)"}, #endif {GTP_MBMS_NOTIFY_REQ, "MBMS Notification Request"}, {GTP_MBMS_NOTIFY_RES, "MBMS Notification Response"}, {GTP_MBMS_NOTIFY_REJ_REQ, "MBMS Notification Reject Request"}, {GTP_MBMS_NOTIFY_REJ_RES, "MBMS Notification Reject Response"}, {GTP_CREATE_MBMS_CNTXT_REQ, "Create MBMS Context Request"}, {GTP_CREATE_MBMS_CNTXT_RES, "Create MBMS Context Response"}, {GTP_UPD_MBMS_CNTXT_REQ, "Update MBMS Context Request"}, {GTP_UPD_MBMS_CNTXT_RES, "Update MBMS Context Response"}, {GTP_DEL_MBMS_CNTXT_REQ, "Delete MBMS Context Request"}, {GTP_DEL_MBMS_CNTXT_RES, "Delete MBMS Context Response"}, /* 106 - 111 For future use. Shall not be sent. If received, * shall be treated as an Unknown message. */ #if 0 { 106, "Unknown message(For future use)"}, { 107, "Unknown message(For future use)"}, { 108, "Unknown message(For future use)"}, { 109, "Unknown message(For future use)"}, { 110, "Unknown message(For future use)"}, { 111, "Unknown message(For future use)"}, #endif {GTP_MBMS_REG_REQ, "MBMS Registration Request"}, {GTP_MBMS_REG_RES, "MBMS Registration Response"}, {GTP_MBMS_DE_REG_REQ, "MBMS De-Registration Request"}, {GTP_MBMS_DE_REG_RES, "MBMS De-Registration Response"}, {GTP_MBMS_SES_START_REQ, "MBMS Session Start Request"}, {GTP_MBMS_SES_START_RES, "MBMS Session Start Response"}, {GTP_MBMS_SES_STOP_REQ, "MBMS Session Stop Request"}, {GTP_MBMS_SES_STOP_RES, "MBMS Session Stop Response"}, {GTP_MBMS_SES_UPD_REQ, "MBMS Session Update Request"}, {GTP_MBMS_SES_UPD_RES, "MBMS Session Update Response"}, /* 122-127 For future use. Shall not be sent. * If received, shall be treated as an Unknown message. */ #if 0 { 122, "Unknown message(For future use)"}, { 123, "Unknown message(For future use)"}, { 124, "Unknown message(For future use)"}, { 125, "Unknown message(For future use)"}, { 126, "Unknown message(For future use)"}, { 127, "Unknown message(For future use)"}, #endif {GTP_MS_INFO_CNG_NOT_REQ, "MS Info Change Notification Request"}, {GTP_MS_INFO_CNG_NOT_RES, "MS Info Change Notification Response"}, /* 130-239 For future use. Shall not be sent. If received, * shall be treated as an Unknown message. */ #if 0 { 130, "Unknown message(For future use)"}, { 131, "Unknown message(For future use)"}, { 132, "Unknown message(For future use)"}, { 133, "Unknown message(For future use)"}, { 134, "Unknown message(For future use)"}, { 135, "Unknown message(For future use)"}, { 136, "Unknown message(For future use)"}, { 137, "Unknown message(For future use)"}, { 138, "Unknown message(For future use)"}, { 139, "Unknown message(For future use)"}, { 140, "Unknown message(For future use)"}, { 141, "Unknown message(For future use)"}, { 142, "Unknown message(For future use)"}, { 143, "Unknown message(For future use)"}, { 144, "Unknown message(For future use)"}, { 145, "Unknown message(For future use)"}, { 146, "Unknown message(For future use)"}, { 147, "Unknown message(For future use)"}, { 148, "Unknown message(For future use)"}, { 149, "Unknown message(For future use)"}, { 150, "Unknown message(For future use)"}, { 151, "Unknown message(For future use)"}, { 152, "Unknown message(For future use)"}, { 153, "Unknown message(For future use)"}, { 154, "Unknown message(For future use)"}, { 155, "Unknown message(For future use)"}, { 156, "Unknown message(For future use)"}, { 157, "Unknown message(For future use)"}, { 158, "Unknown message(For future use)"}, { 159, "Unknown message(For future use)"}, #endif {GTP_MSG_DATA_TRANSF_REQ, "Data record transfer request"}, {GTP_MSG_DATA_TRANSF_RESP, "Data record transfer response"}, /* 242-253 For future use. Shall not be sent. If received, * shall be treated as an Unknown message. */ #if 0 { 242, "Unknown message(For future use)"}, { 243, "Unknown message(For future use)"}, { 244, "Unknown message(For future use)"}, { 245, "Unknown message(For future use)"}, { 246, "Unknown message(For future use)"}, { 247, "Unknown message(For future use)"}, { 248, "Unknown message(For future use)"}, { 249, "Unknown message(For future use)"}, { 250, "Unknown message(For future use)"}, { 251, "Unknown message(For future use)"}, { 252, "Unknown message(For future use)"}, { 253, "Unknown message(For future use)"}, #endif {GTP_MSG_END_MARKER, "End Marker"}, {GTP_MSG_TPDU, "T-PDU"}, {0, NULL} }; static value_string_ext gtp_message_type_ext = VALUE_STRING_EXT_INIT(gtp_message_type); /* definitions of fields in extension header */ #define GTP_EXT_CAUSE 0x01 #define GTP_EXT_IMSI 0x02 #define GTP_EXT_RAI 0x03 #define GTP_EXT_TLLI 0x04 #define GTP_EXT_PTMSI 0x05 #define GTP_EXT_QOS_GPRS 0x06 #define GTP_EXT_REORDER 0x08 #define GTP_EXT_AUTH_TRI 0x09 #define GTP_EXT_MAP_CAUSE 0x0B #define GTP_EXT_PTMSI_SIG 0x0C #define GTP_EXT_MS_VALID 0x0D #define GTP_EXT_RECOVER 0x0E #define GTP_EXT_SEL_MODE 0x0F #define GTP_EXT_16 0x10 #define GTP_EXT_FLOW_LABEL 0x10 #define GTP_EXT_TEID 0x10 /* 0xFF10 3G */ #define GTP_EXT_17 0x11 #define GTP_EXT_FLOW_SIG 0x11 #define GTP_EXT_TEID_CP 0x11 /* 0xFF11 3G */ #define GTP_EXT_18 0x12 #define GTP_EXT_FLOW_II 0x12 #define GTP_EXT_TEID_II 0x12 /* 0xFF12 3G */ #define GTP_EXT_19 0x13 /* 19 TV Teardown Ind 7.7.16 */ #define GTP_EXT_MS_REASON 0x13 /* same as 0x1D GTPv1_EXT_MS_REASON */ #define GTP_EXT_TEAR_IND 0x13 /* 0xFF13 3G */ #define GTP_EXT_NSAPI 0x14 /* 3G */ #define GTP_EXT_RANAP_CAUSE 0x15 /* 3G */ #define GTP_EXT_RAB_CNTXT 0x16 /* 3G */ #define GTP_EXT_RP_SMS 0x17 /* 3G */ #define GTP_EXT_RP 0x18 /* 3G */ #define GTP_EXT_PKT_FLOW_ID 0x19 /* 3G */ #define GTP_EXT_CHRG_CHAR 0x1A /* 3G */ #define GTP_EXT_TRACE_REF 0x1B /* 3G */ #define GTP_EXT_TRACE_TYPE 0x1C /* 3G */ #define GTPv1_EXT_MS_REASON 0x1D /* 3G 29 TV MS Not Reachable Reason 7.7.25A */ /* 117-126 Reserved for the GPRS charging protocol (see GTP' in 3GPP TS 32.295 [33]) */ #define GTP_EXT_TR_COMM 0x7E /* charging */ #define GTP_EXT_CHRG_ID 0x7F /* 127 TV Charging ID 7.7.26 */ #define GTP_EXT_USER_ADDR 0x80 #define GTP_EXT_MM_CNTXT 0x81 #define GTP_EXT_PDP_CNTXT 0x82 #define GTP_EXT_APN 0x83 #define GTP_EXT_PROTO_CONF 0x84 #define GTP_EXT_GSN_ADDR 0x85 #define GTP_EXT_MSISDN 0x86 #define GTP_EXT_QOS_UMTS 0x87 /* 3G */ #define GTP_EXT_AUTH_QUI 0x88 /* 3G */ #define GTP_EXT_TFT 0x89 /* 3G */ #define GTP_EXT_TARGET_ID 0x8A /* 3G */ #define GTP_EXT_UTRAN_CONT 0x8B /* 3G */ #define GTP_EXT_RAB_SETUP 0x8C /* 3G */ #define GTP_EXT_HDR_LIST 0x8D /* 3G */ #define GTP_EXT_TRIGGER_ID 0x8E /* 3G 142 7.7.41 */ #define GTP_EXT_OMC_ID 0x8F /* 3G 143 TLV OMC Identity 7.7.42 */ #define GTP_EXT_RAN_TR_CONT 0x90 /* 3G 144 TLV RAN Transparent Container 7.7.43 */ #define GTP_EXT_PDP_CONT_PRIO 0x91 /* 3G 145 TLV PDP Context Prioritization 7.7.45 */ #define GTP_EXT_ADD_RAB_SETUP_INF 0x92 /* 3G 146 TLV Additional RAB Setup Information 7.7.45A */ #define GTP_EXT_SGSN_NO 0x93 /* 3G 147 TLV SGSN Number 7.7.47 */ #define GTP_EXT_COMMON_FLGS 0x94 /* 3G 148 TLV Common Flags 7.7.48 */ #define GTP_EXT_APN_RES 0x95 /* 3G 149 */ #define GTP_EXT_RA_PRIO_LCS 0x96 /* 3G 150 TLV Radio Priority LCS 7.7.25B */ #define GTP_EXT_RAT_TYPE 0x97 /* 3G 151 TLV RAT Type 7.7.50 */ #define GTP_EXT_USR_LOC_INF 0x98 /* 3G 152 TLV User Location Information 7.7.51 */ #define GTP_EXT_MS_TIME_ZONE 0x99 /* 3G 153 TLV MS Time Zone 7.7.52 */ #define GTP_EXT_IMEISV 0x9A /* 3G 154 TLV IMEI(SV) 7.7.53 */ #define GTP_EXT_CAMEL_CHG_INF_CON 0x9B /* 3G 155 TLV CAMEL Charging Information Container 7.7.54 */ #define GTP_EXT_MBMS_UE_CTX 0x9C /* 3G 156 TLV MBMS UE Context 7.7.55 */ #define GTP_EXT_TMGI 0x9D /* 3G 157 TLV Temporary Mobile Group Identity (TMGI) 7.7.56 */ #define GTP_EXT_RIM_RA 0x9E /* 3G 158 TLV RIM Routing Address 7.7.57 */ #define GTP_EXT_MBMS_PROT_CONF_OPT 0x9F /* 3G 159 TLV MBMS Protocol Configuration Options 7.7.58 */ #define GTP_EXT_MBMS_SA 0xA0 /* 3G 160 TLV MBMS Service Area 7.7.60 */ #define GTP_EXT_SRC_RNC_PDP_CTX_INF 0xA1 /* 3G 161 TLV Source RNC PDCP context info 7.7.61 */ #define GTP_EXT_ADD_TRS_INF 0xA2 /* 3G 162 TLV Additional Trace Info 7.7.62 */ #define GTP_EXT_HOP_COUNT 0xA3 /* 3G 163 TLV Hop Counter 7.7.63 */ #define GTP_EXT_SEL_PLMN_ID 0xA4 /* 3G 164 TLV Selected PLMN ID 7.7.64 */ #define GTP_EXT_MBMS_SES_ID 0xA5 /* 3G 165 TLV MBMS Session Identifier 7.7.65 */ #define GTP_EXT_MBMS_2G_3G_IND 0xA6 /* 3G 166 TLV MBMS 2G/3G Indicator 7.7.66 */ #define GTP_EXT_ENH_NSAPI 0xA7 /* 3G 167 TLV Enhanced NSAPI 7.7.67 */ #define GTP_EXT_MBMS_SES_DUR 0xA8 /* 3G 168 TLV MBMS Session Duration 7.7.59 */ #define GTP_EXT_ADD_MBMS_TRS_INF 0xA9 /* 3G 169 TLV Additional MBMS Trace Info 7.7.68 */ #define GTP_EXT_MBMS_SES_ID_REP_NO 0xAA /* 3G 170 TLV MBMS Session Identity Repetition Number 7.7.69 */ #define GTP_EXT_MBMS_TIME_TO_DATA_TR 0xAB /* 3G 171 TLV MBMS Time To Data Transfer 7.7.70 */ #define GTP_EXT_PS_HO_REQ_CTX 0xAC /* 3G 172 TLV PS Handover Request Context 7.7.71 */ #define GTP_EXT_BSS_CONT 0xAD /* 3G 173 TLV BSS Container 7.7.72 */ #define GTP_EXT_CELL_ID 0xAE /* 3G 174 TLV Cell Identification 7.7.73 */ #define GTP_EXT_PDU_NO 0xAF /* 3G 175 TLV PDU Numbers 7.7.74 */ #define GTP_EXT_BSSGP_CAUSE 0xB0 /* 3G 176 TLV BSSGP Cause 7.7.75 */ #define GTP_EXT_REQ_MBMS_BEARER_CAP 0xB1 /* 3G 177 TLV Required MBMS bearer capabilities 7.7.76 */ #define GTP_EXT_RIM_ROUTING_ADDR_DISC 0xB2 /* 3G 178 TLV RIM Routing Address Discriminator 7.7.77 */ #define GTP_EXT_LIST_OF_SETUP_PFCS 0xB3 /* 3G 179 TLV List of set-up PFCs 7.7.78 */ #define GTP_EXT_PS_HANDOVER_XIP_PAR 0xB4 /* 3G 180 TLV PS Handover XID Parameters 7.7.79 */ #define GTP_EXT_MS_INF_CHG_REP_ACT 0xB5 /* 3G 181 TLV MS Info Change Reporting Action 7.7.80 */ #define GTP_EXT_DIRECT_TUNNEL_FLGS 0xB6 /* 3G 182 TLV Direct Tunnel Flags 7.7.81 */ #define GTP_EXT_CORRELATION_ID 0xB7 /* 3G 183 TLV Correlation-ID 7.7.82 */ #define GTP_EXT_BEARER_CONTROL_MODE 0xB8 /* 3G 184 TLV Bearer Control Mode 7.7.83 */ #define GTP_EXT_MBMS_FLOW_ID 0xB9 /* 3G 185 TLV MBMS Flow Identifier 7.7.84 */ #define GTP_EXT_MBMS_IP_MCAST_DIST 0xBA /* 3G 186 TLV MBMS IP Multicast Distribution 7.7.85 */ #define GTP_EXT_MBMS_DIST_ACK 0xBB /* 3G 187 TLV MBMS Distribution Acknowledgement 7.7.86 */ #define GTP_EXT_RELIABLE_IRAT_HO_INF 0xBC /* 3G 188 TLV Reliable INTER RAT HANDOVER INFO 7.7.87 */ #define GTP_EXT_RFSP_INDEX 0xBD /* 3G 189 TLV RFSP Index 7.7.88 */ #define GTP_EXT_FQDN 0xBE /* 3G 190 TLV Fully Qualified Domain Name (FQDN) 7.7.90 */ #define GTP_EXT_EVO_ALLO_RETE_P1 0xBF /* 3G 191 TLV Evolved Allocation/Retention Priority I 7.7.91 */ #define GTP_EXT_EVO_ALLO_RETE_P2 0xC0 /* 3G 192 TLV Evolved Allocation/Retention Priority II 7.7.92 */ #define GTP_EXT_EXTENDED_COMMON_FLGS 0xC1 /* 3G 193 TLV Extended Common Flags 7.7.93 */ #define GTP_EXT_UCI 0xC2 /* 3G 194 TLV User CSG Information (UCI) 7.7.94 */ #define GTP_EXT_CSG_INF_REP_ACT 0xC3 /* 3G 195 TLV CSG Information Reporting Action 7.7.95 */ #define GTP_EXT_CSG_ID 0xC4 /* 3G 196 TLV CSG ID 7.7.96 */ #define GTP_EXT_CMI 0xC5 /* 3G 197 TLV CSG Membership Indication (CMI) 7.7.97 */ #define GTP_EXT_AMBR 0xC6 /* 3G 198 TLV Aggregate Maximum Bit Rate (AMBR) 7.7.98 */ #define GTP_EXT_UE_NETWORK_CAP 0xC7 /* 3G 199 TLV UE Network Capability 7.7.99 */ #define GTP_EXT_UE_AMBR 0xC8 /* 3G 200 TLV UE-AMBR 7.7.100 */ #define GTP_EXT_APN_AMBR_WITH_NSAPI 0xC9 /* 3G 201 TLV APN-AMBR with NSAPI 7.7.101 */ #define GTP_EXT_GGSN_BACK_OFF_TIME 0xCA /* 3G 202 TLV GGSN Back-Off Time 7.7.102 */ #define GTP_EXT_SIG_PRI_IND 0xCB /* 3G 203 TLV Signalling Priority Indication 7.7.103 */ #define GTP_EXT_SIG_PRI_IND_W_NSAPI 0xCC /* 3G 204 TLV Signalling Priority Indication with NSAPI 7.7.104 */ #define GTP_EXT_HIGHER_BR_16MB_FLG 0xCD /* 3G 205 TLV Higher bitrates than 16 Mbps flag 7.7.105 */ #define GTP_EXT_MAX_MBR_APN_AMBR 0xCE /* 3G 206 TLV Max MBR/APN-AMBR 7.7.106 */ #define GTP_EXT_ADD_MM_CTX_SRVCC 0xCF /* 3G 207 TLV Additional MM context for SRVCC 7.7.107 */ #define GTP_EXT_ADD_FLGS_SRVCC 0xD0 /* 3G 208 TLV Additional flags for SRVCC 7.7.108 */ #define GTP_EXT_STN_SR 0xD1 /* 3G 209 TLV STN-SR 7.7.109 */ #define GTP_EXT_C_MSISDN 0xD2 /* 3G 210 TLV C-MSISDN 7.7.110 */ #define GTP_EXT_EXT_RANAP_CAUSE 0xD3 /* 3G 211 TLV Extended RANAP Cause 7.7.111 */ #define GTP_EXT_ENODEB_ID 0xD4 /* 3G 212 TLV eNodeB ID 7.7.112 */ #define GTP_EXT_SEL_MODE_W_NSAPI 0xD5 /* 3G 213 TLV Selection Mode with NSAPI 7.7.113 */ #define GTP_EXT_ULI_TIMESTAMP 0xD6 /* 3G 214 TLV ULI Timestamp 7.7.114 */ #define GTP_EXT_LHN_ID_W_SAPI 0xD7 /* 3G 215 TLV Local Home Network ID (LHN-ID) with NSAPI 7.7.115 */ #define GTP_EXT_CN_OP_SEL_ENTITY 0xD8 /* 3G 216 TLV CN Operator Selection Entity 7.7.116 */ #define GTP_EXT_UE_USAGE_TYPE 0xD9 /* 3G 217 TLV UE Usage Type 7.7.117 */ #define GTP_EXT_EXT_COMMON_FLGS_II 0xDA /* 3G 218 TLV Extended Common Flags II 7.7.118 */ #define GTP_EXT_NODE_IDENTIFIER 0xDB /* 3G 219 TLV Node Identifier 7.7.119 */ #define GTP_EXT_CIOT_OPT_SUP_IND 0xDC /* 3G 220 TLV CIoT Optimizations Support Indication 7.7.120 */ #define GTP_EXT_SCEF_PDN_CONNECTION 0xDD /* 3G 221 TLV SCEF PDN Connection 7.7.121 */ #define GTP_EXT_IOV_UPDATES_COUNTER 0xDE /* 3G 222 TLV IOV_updates counter 7.7.122 */ #define GTP_EXT_MAPPED_UE_USAGE_TYPE 0xDF /* 3G 223 TLV Mapped UE Usage Type 7.7.123 */ #define GTP_EXT_UP_FUN_SEL_IND_FLAGS 0xE0 /* 3G 224 TLV UP Function Selection Indication Flags 7.7.124 */ /* 225-238 TLV Spare. For future use. */ /* 239-250 Reserved for the GPRS charging protocol (see GTP' in 3GPP TS 32.295 [33])*/ #define GTP_EXT_C1 0xC1 #define GTP_EXT_C2 0xC2 #define GTP_EXT_REL_PACK 0xF9 /* charging */ #define GTP_EXT_CAN_PACK 0xFA /* charging */ #define GTP_EXT_CHRG_ADDR 0xFB /* 3G 251 TLV Charging Gateway Address 7.7.44 */ /* 252-254 Reserved for the GPRS charging protocol (see GTP' in 3GPP TS 32.295 [33])*/ #define GTP_EXT_DATA_REQ 0xFC /* charging */ #define GTP_EXT_DATA_RESP 0xFD /* charging */ #define GTP_EXT_NODE_ADDR 0xFE /* charging */ #define GTP_EXT_PRIV_EXT 0xFF static const value_string gtp_val[] = { {GTP_EXT_CAUSE, "Cause of operation"}, {GTP_EXT_IMSI, "IMSI"}, {GTP_EXT_RAI, "Routing Area Identity"}, {GTP_EXT_TLLI, "Temporary Logical Link Identity"}, {GTP_EXT_PTMSI, "Packet TMSI"}, /* 6 */ {GTP_EXT_QOS_GPRS, "Quality of Service"}, /* 6-7 Spare */ /* 8 */ {GTP_EXT_REORDER, "Reorder required"}, /* 9 */ {GTP_EXT_AUTH_TRI, "Authentication triplets"}, /* 10 Spare */ /* 11 */ {GTP_EXT_MAP_CAUSE, "MAP cause"}, /* 12 */ {GTP_EXT_PTMSI_SIG, "P-TMSI signature"}, /* 13 */ {GTP_EXT_MS_VALID, "MS validated"}, /* 14 */ {GTP_EXT_RECOVER, "Recovery"}, /* 15 */ {GTP_EXT_SEL_MODE, "Selection mode"}, /* 16 */ {GTP_EXT_16, "Flow label data I"}, /* 16 */ /* ??? {GTP_EXT_FLOW_LABEL, "Flow label data I"}, */ /* 16 */ /* ??? {GTP_EXT_TEID, "Tunnel Endpoint Identifier Data I"}, */ /* 3G */ {GTP_EXT_17, "Flow label signalling"}, /* ??? {GTP_EXT_FLOW_SIG, "Flow label signalling"}, */ /* ??? {GTP_EXT_TEID_CP, "Tunnel Endpoint Identifier Data Control Plane"}, */ /* 3G */ {GTP_EXT_18, "Flow label data II"}, /* ??? {GTP_EXT_FLOW_II, "Flow label data II"}, */ /* ??? {GTP_EXT_TEID_II, "Tunnel Endpoint Identifier Data II"}, */ /* 3G */ {GTP_EXT_19, "MS not reachable reason"}, /* ??? {GTP_EXT_MS_REASON, "MS not reachable reason"}, */ /* ??? {GTP_EXT_TEAR_IND, "Teardown ID"}, */ /* 3G */ {GTP_EXT_NSAPI, "NSAPI"}, /* 3G */ {GTP_EXT_RANAP_CAUSE, "RANAP cause"}, /* 3G */ {GTP_EXT_RAB_CNTXT, "RAB context"}, /* 3G */ {GTP_EXT_RP_SMS, "Radio Priority for MO SMS"}, /* 3G */ {GTP_EXT_RP, "Radio Priority"}, /* 3G */ {GTP_EXT_PKT_FLOW_ID, "Packet Flow ID"}, /* 3G */ {GTP_EXT_CHRG_CHAR, "Charging characteristics"}, /* 3G */ {GTP_EXT_TRACE_REF, "Trace references"}, /* 3G */ {GTP_EXT_TRACE_TYPE, "Trace type"}, /* 3G */ /* 29 */ {GTPv1_EXT_MS_REASON, "MS not reachable reason"}, /* 3G */ /* 117-126 Reserved for the GPRS charging protocol (see GTP' in 3GPP TS 32.295 [33]) */ /* 126 */ {GTP_EXT_TR_COMM, "Packet transfer command"}, /* charging */ /* 127 */ {GTP_EXT_CHRG_ID, "Charging ID"}, {GTP_EXT_USER_ADDR, "End user address"}, {GTP_EXT_MM_CNTXT, "MM context"}, {GTP_EXT_PDP_CNTXT, "PDP context"}, {GTP_EXT_APN, "Access Point Name"}, {GTP_EXT_PROTO_CONF, "Protocol configuration options"}, {GTP_EXT_GSN_ADDR, "GSN address"}, {GTP_EXT_MSISDN, "MS international PSTN/ISDN number"}, {GTP_EXT_QOS_UMTS, "Quality of service (UMTS)"}, /* 3G */ {GTP_EXT_AUTH_QUI, "Authentication quintuplets"}, /* 3G */ {GTP_EXT_TFT, "Traffic Flow Template (TFT)"}, /* 3G */ {GTP_EXT_TARGET_ID, "Target (RNC) identification"}, /* 3G */ {GTP_EXT_UTRAN_CONT, "UTRAN transparent field"}, /* 3G */ {GTP_EXT_RAB_SETUP, "RAB setup information"}, /* 3G */ {GTP_EXT_HDR_LIST, "Extension Header Types List"}, /* 3G */ {GTP_EXT_TRIGGER_ID, "Trigger Id"}, /* 3G */ {GTP_EXT_OMC_ID, "OMC Identity"}, /* 3G */ {GTP_EXT_RAN_TR_CONT, "RAN Transparent Container"}, /* 7.7.43 */ {GTP_EXT_PDP_CONT_PRIO, "PDP Context Prioritization"}, /* 7.7.45 */ {GTP_EXT_ADD_RAB_SETUP_INF, "Additional RAB Setup Information"}, /* 7.7.45A */ {GTP_EXT_SGSN_NO, "SGSN Number"}, /* 7.7.47 */ {GTP_EXT_COMMON_FLGS, "Common Flags"}, /* 7.7.48 */ {GTP_EXT_APN_RES, "APN Restriction"}, /* 3G */ {GTP_EXT_RA_PRIO_LCS, "Radio Priority LCS"}, /* 7.7.25B */ {GTP_EXT_RAT_TYPE, "RAT Type"}, /* 3G */ {GTP_EXT_USR_LOC_INF, "User Location Information"}, /* 7.7.51 */ {GTP_EXT_MS_TIME_ZONE, "MS Time Zone"}, /* 7.7.52 */ {GTP_EXT_IMEISV, "IMEI(SV)"}, /* 3G */ {GTP_EXT_CAMEL_CHG_INF_CON, "CAMEL Charging Information Container"}, /* 7.7.54 */ {GTP_EXT_MBMS_UE_CTX, "MBMS UE Context"}, /* 7.7.55 */ {GTP_EXT_TMGI, "Temporary Mobile Group Identity (TMGI)"}, /* 7.7.56 */ {GTP_EXT_RIM_RA, "RIM Routing Address"}, /* 7.7.57 */ {GTP_EXT_MBMS_PROT_CONF_OPT, "MBMS Protocol Configuration Options"}, /* 7.7.58 */ {GTP_EXT_MBMS_SA, "MBMS Service Area"}, /* 7.7.60 */ {GTP_EXT_SRC_RNC_PDP_CTX_INF, "Source RNC PDCP context info"}, /* 7.7.61 */ {GTP_EXT_ADD_TRS_INF, "Additional Trace Info"}, /* 7.7.62 */ {GTP_EXT_HOP_COUNT, "Hop Counter"}, /* 7.7.63 */ {GTP_EXT_SEL_PLMN_ID, "Selected PLMN ID"}, /* 7.7.64 */ {GTP_EXT_MBMS_SES_ID, "MBMS Session Identifier"}, /* 7.7.65 */ {GTP_EXT_MBMS_2G_3G_IND, "MBMS 2G/3G Indicator"}, /* 7.7.66 */ {GTP_EXT_ENH_NSAPI, "Enhanced NSAPI"}, /* 7.7.67 */ {GTP_EXT_MBMS_SES_DUR, "MBMS Session Duration"}, /* 7.7.59 */ {GTP_EXT_ADD_MBMS_TRS_INF, "Additional MBMS Trace Info"}, /* 7.7.68 */ {GTP_EXT_MBMS_SES_ID_REP_NO, "MBMS Session Identity Repetition Number"}, /* 7.7.69 */ {GTP_EXT_MBMS_TIME_TO_DATA_TR, "MBMS Time To Data Transfer"}, /* 7.7.70 */ {GTP_EXT_PS_HO_REQ_CTX, "PS Handover Request Context"}, /* 7.7.71 */ {GTP_EXT_BSS_CONT, "BSS Container"}, /* 7.7.72 */ {GTP_EXT_CELL_ID, "Cell Identification"}, /* 7.7.73 */ {GTP_EXT_PDU_NO, "PDU Numbers"}, /* 7.7.74 */ {GTP_EXT_BSSGP_CAUSE, "BSSGP Cause"}, /* 7.7.75 */ {GTP_EXT_REQ_MBMS_BEARER_CAP, "Required MBMS bearer capabilities"}, /* 7.7.76 */ {GTP_EXT_RIM_ROUTING_ADDR_DISC, "RIM Routing Address Discriminator"}, /* 7.7.77 */ {GTP_EXT_LIST_OF_SETUP_PFCS, "List of set-up PFCs"}, /* 7.7.78 */ /* 180 */ {GTP_EXT_PS_HANDOVER_XIP_PAR, " PS Handover XID Parameters"}, /* 7.7.79 */ /* 181 */ {GTP_EXT_MS_INF_CHG_REP_ACT, "MS Info Change Reporting Action"}, /* 7.7.80 */ /* 182 */ {GTP_EXT_DIRECT_TUNNEL_FLGS, "Direct Tunnel Flags"}, /* 7.7.81 */ /* 183 */ {GTP_EXT_CORRELATION_ID, "Correlation-ID"}, /* 7.7.82 */ /* 184 */ {GTP_EXT_BEARER_CONTROL_MODE, "Bearer Control Mode"}, /* 7.7.83 */ /* 185 */ {GTP_EXT_MBMS_FLOW_ID, "MBMS Flow Identifier"}, /* 7.7.84 */ /* 186 */ {GTP_EXT_MBMS_IP_MCAST_DIST, "MBMS IP Multicast Distribution"}, /* 7.7.85 */ /* 187 */ {GTP_EXT_MBMS_DIST_ACK, "MBMS Distribution Acknowledgement"}, /* 7.7.86 */ /* 188 */ {GTP_EXT_RELIABLE_IRAT_HO_INF, "Reliable INTER RAT HANDOVER INFO"}, /* 7.7.87 */ /* 189 */ {GTP_EXT_RFSP_INDEX, "RFSP Index"}, /* 7.7.88 */ /* 190 */ {GTP_EXT_FQDN, "Fully Qualified Domain Name (FQDN)"}, /* 7.7.90 */ /* 191 */ {GTP_EXT_EVO_ALLO_RETE_P1, "Evolved Allocation/Retention Priority I"}, /* 7.7.91 */ /* 192 */ {GTP_EXT_EVO_ALLO_RETE_P2, "Evolved Allocation/Retention Priority II"}, /* 7.7.92 */ /* 193 */ {GTP_EXT_EXTENDED_COMMON_FLGS, "Extended Common Flags"}, /* 7.7.93 */ /* 194 */ {GTP_EXT_UCI, "User CSG Information (UCI)"}, /* 7.7.94 */ /* 195 */ {GTP_EXT_CSG_INF_REP_ACT, "CSG Information Reporting Action"}, /* 7.7.95 */ /* 196 */ {GTP_EXT_CSG_ID, "CSG ID"}, /* 7.7.96 */ /* 197 */ {GTP_EXT_CMI, "CSG Membership Indication (CMI)"}, /* 7.7.97 */ /* 198 */ {GTP_EXT_AMBR, "Aggregate Maximum Bit Rate (AMBR)"}, /* 7.7.98 */ /* 199 */ {GTP_EXT_UE_NETWORK_CAP, "UE Network Capability"}, /* 7.7.99 */ /* 200 */ {GTP_EXT_UE_AMBR, "UE-AMBR"}, /* 7.7.100 */ /* 201 */ {GTP_EXT_APN_AMBR_WITH_NSAPI, "APN-AMBR with NSAPI"}, /* 7.7.101 */ /* 202 */ {GTP_EXT_GGSN_BACK_OFF_TIME, "GGSN Back-Off Time"}, /* 7.7.102 */ /* 203 */ {GTP_EXT_SIG_PRI_IND, "Signalling Priority Indication"}, /* 7.7.103 */ /* 204 */ {GTP_EXT_SIG_PRI_IND_W_NSAPI, "Signalling Priority Indication with NSAPI"}, /* 7.7.104 */ /* 205 */ {GTP_EXT_HIGHER_BR_16MB_FLG, "Higher bitrates than 16 Mbps flag"}, /* 7.7.105 */ /* 206 */ {GTP_EXT_MAX_MBR_APN_AMBR, "Max MBR/APN-AMBR"}, /* 7.7.106 */ /* 207 */ {GTP_EXT_ADD_MM_CTX_SRVCC, "Additional MM context for SRVCC"}, /* 7.7.107 */ /* 208 */ {GTP_EXT_ADD_FLGS_SRVCC, "Additional flags for SRVCC"}, /* 7.7.108 */ /* 209 */ {GTP_EXT_STN_SR, "STN-SR"}, /* 7.7.109 */ /* 210 */ {GTP_EXT_C_MSISDN, "C-MSISDN"}, /* 7.7.110 */ /* 211 */ {GTP_EXT_EXT_RANAP_CAUSE, "Extended RANAP Cause"}, /* 7.7.111 */ /* 212 */ {GTP_EXT_ENODEB_ID, "eNodeB ID" }, /* 7.7.112 */ /* 213 */ {GTP_EXT_SEL_MODE_W_NSAPI, "Selection Mode with NSAPI" }, /* 7.7.113 */ /* 214 */ {GTP_EXT_ULI_TIMESTAMP, "ULI Timestamp" }, /* 7.7.114 */ /* 215 */ {GTP_EXT_LHN_ID_W_SAPI, "Local Home Network ID (LHN-ID) with NSAPI" }, /* 7.7.115 */ /* 216 */ {GTP_EXT_CN_OP_SEL_ENTITY, "Operator Selection Entity" }, /* 7.7.116 */ /* 217 */ {GTP_EXT_UE_USAGE_TYPE, "UE Usage Type" }, /* 7.7.117 */ /* 218 */ {GTP_EXT_EXT_COMMON_FLGS_II, "Extended Common Flags II"}, /* 7.7.118 */ /* 219 */ {GTP_EXT_NODE_IDENTIFIER, "Node Identifier" }, /* 7.7.119 */ /* 220 */ {GTP_EXT_CIOT_OPT_SUP_IND, "CIoT Optimizations Support Indication" }, /* 7.7.120 */ /* 221 */ {GTP_EXT_SCEF_PDN_CONNECTION, "SCEF PDN Connection" }, /* 7.7.121 */ /* 222 */ {GTP_EXT_IOV_UPDATES_COUNTER, "IOV_updates counter" }, /* 7.7.122 */ /* 223 */ {GTP_EXT_MAPPED_UE_USAGE_TYPE, "Mapped UE Usage Type" }, /* 7.7.123 */ /* 224 */ {GTP_EXT_UP_FUN_SEL_IND_FLAGS, "UP Function Selection Indication Flags" }, /* 7.7.124 */ /* 225-238 TLV Spare. For future use. */ /* 239-250 Reserved for the GPRS charging protocol (see GTP' in 3GPP TS 32.295 [33]) */ /* 249 */ {GTP_EXT_REL_PACK, "Sequence numbers of released packets IE"}, /* charging */ /* 250 */ {GTP_EXT_CAN_PACK, "Sequence numbers of canceled packets IE"}, /* charging */ /* 251 */ {GTP_EXT_CHRG_ADDR, "Charging Gateway address"}, /* 7.7.44 */ /* 252-254 Reserved for the GPRS charging protocol (see GTP' in 3GPP TS 32.295 [33]) */ /* 252 */ {GTP_EXT_DATA_REQ, "Data record packet"}, /* charging */ /* 253 */ {GTP_EXT_DATA_RESP, "Requests responded"}, /* charging */ /* 254 */ {GTP_EXT_NODE_ADDR, "Address of recommended node"}, /* charging */ /* 255 */ {GTP_EXT_PRIV_EXT, "Private Extension"}, {0, NULL} }; static value_string_ext gtp_val_ext = VALUE_STRING_EXT_INIT(gtp_val); /* It seems like some IE's are renamed in gtpv1 at least reading * 3GPP TS 29.060 version 6.11.0 Release 6 */ static const value_string gtpv1_val[] = { /* 1 */ {GTP_EXT_CAUSE, "Cause of operation"}, /* 2 */ {GTP_EXT_IMSI, "IMSI"}, /* 3 */ {GTP_EXT_RAI, "Routing Area Identity"}, /* 4 */ {GTP_EXT_TLLI, "Temporary Logical Link Identity"}, /* 5 */ {GTP_EXT_PTMSI, "Packet TMSI"}, /* 6 */ {GTP_EXT_QOS_GPRS, "Quality of Service"}, /* 6-7 Spare */ /* 7 */ {7, "Spare"}, /* 8 */ {GTP_EXT_REORDER, "Reorder required"}, /* 9 */ {GTP_EXT_AUTH_TRI, "Authentication triplets"}, /* 10 Spare */ /* 10 */ {10, "Spare"}, /* 11 */ {GTP_EXT_MAP_CAUSE, "MAP cause"}, /* 12 */ {GTP_EXT_PTMSI_SIG, "P-TMSI signature"}, /* 13 */ {GTP_EXT_MS_VALID, "MS validated"}, /* 14 */ {GTP_EXT_RECOVER, "Recovery"}, /* 15 */ {GTP_EXT_SEL_MODE, "Selection mode"}, /* 16 */ {GTP_EXT_TEID, "Tunnel Endpoint Identifier Data I"}, /* 3G */ /* 17 */ {GTP_EXT_TEID_CP, "Tunnel Endpoint Identifier Data Control Plane"}, /* 3G */ /* 18 */ {GTP_EXT_TEID_II, "Tunnel Endpoint Identifier Data II"}, /* 3G */ /* 19 */ {GTP_EXT_TEAR_IND, "Teardown ID"}, /* 3G */ /* 20 */ {GTP_EXT_NSAPI, "NSAPI"}, /* 3G */ /* 21 */ {GTP_EXT_RANAP_CAUSE, "RANAP cause"}, /* 3G */ /* 22 */ {GTP_EXT_RAB_CNTXT, "RAB context"}, /* 3G */ /* 23 */ {GTP_EXT_RP_SMS, "Radio Priority for MO SMS"}, /* 3G */ /* 24 */ {GTP_EXT_RP, "Radio Priority"}, /* 3G */ /* 25 */ {GTP_EXT_PKT_FLOW_ID, "Packet Flow ID"}, /* 3G */ /* 26 */ {GTP_EXT_CHRG_CHAR, "Charging characteristics"}, /* 3G */ /* 27 */ {GTP_EXT_TRACE_REF, "Trace references"}, /* 3G */ /* 28 */ {GTP_EXT_TRACE_TYPE, "Trace type"}, /* 3G */ /* 29 */ {GTPv1_EXT_MS_REASON, "MS not reachable reason"}, /* 3G */ /* 117-126 Reserved for the GPRS charging protocol (see GTP' in 3GPP TS 32.295 [33]) */ /* 126 */ {GTP_EXT_TR_COMM, "Packet transfer command"}, /* charging */ /* 127 */ {GTP_EXT_CHRG_ID, "Charging ID"}, /* 128 */ {GTP_EXT_USER_ADDR, "End user address"}, /* 129 */ {GTP_EXT_MM_CNTXT, "MM context"}, /* 130 */ {GTP_EXT_PDP_CNTXT, "PDP context"}, /* 131 */ {GTP_EXT_APN, "Access Point Name"}, /* 132 */ {GTP_EXT_PROTO_CONF, "Protocol configuration options"}, /* 133 */ {GTP_EXT_GSN_ADDR, "GSN address"}, /* 134 */ {GTP_EXT_MSISDN, "MS international PSTN/ISDN number"}, /* 135 */ {GTP_EXT_QOS_UMTS, "Quality of service (UMTS)"}, /* 3G */ /* 136 */ {GTP_EXT_AUTH_QUI, "Authentication quintuplets"}, /* 3G */ /* 137 */ {GTP_EXT_TFT, "Traffic Flow Template (TFT)"}, /* 3G */ /* 138 */ {GTP_EXT_TARGET_ID, "Target (RNC) identification"}, /* 3G */ /* 139 */ {GTP_EXT_UTRAN_CONT, "UTRAN transparent field"}, /* 3G */ /* 140 */ {GTP_EXT_RAB_SETUP, "RAB setup information"}, /* 3G */ /* 141 */ {GTP_EXT_HDR_LIST, "Extension Header Types List"}, /* 3G */ /* 142 */ {GTP_EXT_TRIGGER_ID, "Trigger Id"}, /* 3G */ /* 143 */ {GTP_EXT_OMC_ID, "OMC Identity"}, /* 3G */ /* 144 */ {GTP_EXT_RAN_TR_CONT, "RAN Transparent Container"}, /* 7.7.43 */ /* 145 */ {GTP_EXT_PDP_CONT_PRIO, "PDP Context Prioritization"}, /* 7.7.45 */ /* 146 */ {GTP_EXT_ADD_RAB_SETUP_INF, "Additional RAB Setup Information"}, /* 7.7.45A */ /* 147 */ {GTP_EXT_SGSN_NO, "SGSN Number"}, /* 7.7.47 */ /* 148 */ {GTP_EXT_COMMON_FLGS, "Common Flags"}, /* 7.7.48 */ /* 149 */ {GTP_EXT_APN_RES, "APN Restriction"}, /* 3G */ /* 150 */ {GTP_EXT_RA_PRIO_LCS, "Radio Priority LCS"}, /* 7.7.25B */ /* 151 */ {GTP_EXT_RAT_TYPE, "RAT Type"}, /* 3G */ /* 152 */ {GTP_EXT_USR_LOC_INF, "User Location Information"}, /* 7.7.51 */ /* 153 */ {GTP_EXT_MS_TIME_ZONE, "MS Time Zone"}, /* 7.7.52 */ /* 154 */ {GTP_EXT_IMEISV, "IMEI(SV)"}, /* 3G */ /* 155 */ {GTP_EXT_CAMEL_CHG_INF_CON, "CAMEL Charging Information Container"}, /* 7.7.54 */ /* 156 */ {GTP_EXT_MBMS_UE_CTX, "MBMS UE Context"}, /* 7.7.55 */ /* 157 */ {GTP_EXT_TMGI, "Temporary Mobile Group Identity (TMGI)"}, /* 7.7.56 */ /* 158 */ {GTP_EXT_RIM_RA, "RIM Routing Address"}, /* 7.7.57 */ /* 159 */ {GTP_EXT_MBMS_PROT_CONF_OPT, "MBMS Protocol Configuration Options"}, /* 7.7.58 */ /* 160 */ {GTP_EXT_MBMS_SA, "MBMS Service Area"}, /* 7.7.60 */ /* 161 */ {GTP_EXT_SRC_RNC_PDP_CTX_INF, "Source RNC PDCP context info"}, /* 7.7.61 */ /* 162 */ {GTP_EXT_ADD_TRS_INF, "Additional Trace Info"}, /* 7.7.62 */ /* 163 */ {GTP_EXT_HOP_COUNT, "Hop Counter"}, /* 7.7.63 */ /* 164 */ {GTP_EXT_SEL_PLMN_ID, "Selected PLMN ID"}, /* 7.7.64 */ /* 165 */ {GTP_EXT_MBMS_SES_ID, "MBMS Session Identifier"}, /* 7.7.65 */ /* 166 */ {GTP_EXT_MBMS_2G_3G_IND, "MBMS 2G/3G Indicator"}, /* 7.7.66 */ /* 167 */ {GTP_EXT_ENH_NSAPI, "Enhanced NSAPI"}, /* 7.7.67 */ /* 168 */ {GTP_EXT_MBMS_SES_DUR, "MBMS Session Duration"}, /* 7.7.59 */ /* 169 */ {GTP_EXT_ADD_MBMS_TRS_INF, "Additional MBMS Trace Info"}, /* 7.7.68 */ /* 170 */ {GTP_EXT_MBMS_SES_ID_REP_NO, "MBMS Session Identity Repetition Number"}, /* 7.7.69 */ /* 171 */ {GTP_EXT_MBMS_TIME_TO_DATA_TR, "MBMS Time To Data Transfer"}, /* 7.7.70 */ /* 172 */ {GTP_EXT_PS_HO_REQ_CTX, "PS Handover Request Context"}, /* 7.7.71 */ /* 173 */ {GTP_EXT_BSS_CONT, "BSS Container"}, /* 7.7.72 */ /* 174 */ {GTP_EXT_CELL_ID, "Cell Identification"}, /* 7.7.73 */ /* 175 */ {GTP_EXT_PDU_NO, "PDU Numbers"}, /* 7.7.74 */ /* 176 */ {GTP_EXT_BSSGP_CAUSE, "BSSGP Cause"}, /* 7.7.75 */ /* 177 */ {GTP_EXT_REQ_MBMS_BEARER_CAP, "Required MBMS bearer capabilities"}, /* 7.7.76 */ /* 178 */ {GTP_EXT_RIM_ROUTING_ADDR_DISC, "RIM Routing Address Discriminator"}, /* 7.7.77 */ /* 179 */ {GTP_EXT_LIST_OF_SETUP_PFCS, "List of set-up PFCs"}, /* 7.7.78 */ /* 180 */ {GTP_EXT_PS_HANDOVER_XIP_PAR, "PS Handover XID Parameters"}, /* 7.7.79 */ /* 181 */ {GTP_EXT_MS_INF_CHG_REP_ACT, "MS Info Change Reporting Action"}, /* 7.7.80 */ /* 182 */ {GTP_EXT_DIRECT_TUNNEL_FLGS, "Direct Tunnel Flags"}, /* 7.7.81 */ /* 183 */ {GTP_EXT_CORRELATION_ID, "Correlation-ID"}, /* 7.7.82 */ /* 184 */ {GTP_EXT_BEARER_CONTROL_MODE, "Bearer Control Mode"}, /* 7.7.83 */ /* 185 */ {GTP_EXT_MBMS_FLOW_ID, "MBMS Flow Identifier"}, /* 7.7.84 */ /* 186 */ {GTP_EXT_MBMS_IP_MCAST_DIST, "MBMS IP Multicast Distribution"}, /* 7.7.85 */ /* 187 */ {GTP_EXT_MBMS_DIST_ACK, "MBMS Distribution Acknowledgement"}, /* 7.7.86 */ /* 188 */ {GTP_EXT_RELIABLE_IRAT_HO_INF, "Reliable INTER RAT HANDOVER INFO"}, /* 7.7.87 */ /* 190 */ {GTP_EXT_RFSP_INDEX, "RFSP Index"}, /* 7.7.88 */ /* 190 */ {GTP_EXT_FQDN, "Fully Qualified Domain Name (FQDN)"}, /* 7.7.90 */ /* 191 */ {GTP_EXT_EVO_ALLO_RETE_P1, "Evolved Allocation/Retention Priority I"}, /* 7.7.91 */ /* 192 */ {GTP_EXT_EVO_ALLO_RETE_P2, "Evolved Allocation/Retention Priority II"}, /* 7.7.92 */ /* 193 */ {GTP_EXT_EXTENDED_COMMON_FLGS, "Extended Common Flags"}, /* 7.7.93 */ /* 194 */ {GTP_EXT_UCI, "User CSG Information (UCI)"}, /* 7.7.94 */ /* 195 */ {GTP_EXT_CSG_INF_REP_ACT, "CSG Information Reporting Action"}, /* 7.7.95 */ /* 196 */ {GTP_EXT_CSG_ID, "CSG ID"}, /* 7.7.96 */ /* 197 */ {GTP_EXT_CMI, "CSG Membership Indication (CMI)"}, /* 7.7.97 */ /* 198 */ {198, "Aggregate Maximum Bit Rate (AMBR)"}, /* 7.7.98 */ /* 199 */ {199, "UE Network Capability"}, /* 7.7.99 */ /* 200 */ {200, "UE-AMBR"}, /* 7.7.100 */ /* 201 */ {201, "APN-AMBR with NSAPI"}, /* 7.7.101 */ /* 202 */ {202, "GGSN Back-Off Time"}, /* 7.7.102 */ /* 203 */ {203, "Signalling Priority Indication"}, /* 7.7.103 */ /* 204 */ {204, "Signalling Priority Indication with NSAPI"}, /* 7.7.104 */ /* 205 */ {205, "Higher bitrates than 16 Mbps flag"}, /* 7.7.105 */ /* 206 */ {206, "Max MBR/APN-AMBR"}, /* 7.7.106 */ /* 207 */ {207, "Additional MM context for SRVCC"}, /* 7.7.107 */ /* 208 */ {208, "Additional flags for SRVCC"}, /* 7.7.108 */ /* 209 */ {209, "STN-SR"}, /* 7.7.109 */ /* 210 */ {210, "C-MSISDN"}, /* 7.7.110 */ /* 211 */ {211, "Extended RANAP Cause"}, /* 7.7.111 */ /* 212 */ {GTP_EXT_ENODEB_ID, "eNodeB ID" }, /* 7.7.112 */ /* 213 */ {GTP_EXT_SEL_MODE_W_NSAPI, "Selection Mode with NSAPI" }, /* 7.7.113 */ /* 214 */ {GTP_EXT_ULI_TIMESTAMP, "ULI Timestamp" }, /* 7.7.114 */ /* 215 */ {GTP_EXT_LHN_ID_W_SAPI, "Local Home Network ID (LHN-ID) with NSAPI" }, /* 7.7.115 */ /* 216 */ {GTP_EXT_CN_OP_SEL_ENTITY, "Operator Selection Entity" }, /* 7.7.116 */ /* 217 */ {GTP_EXT_UE_USAGE_TYPE, "UE Usage Type" }, /* 7.7.117 */ /* 218 */ {GTP_EXT_EXT_COMMON_FLGS_II, "Extended Common Flags II"}, /* 7.7.118 */ /* 219 */ {GTP_EXT_NODE_IDENTIFIER, "Node Identifier" }, /* 7.7.119 */ /* 220 */ {GTP_EXT_CIOT_OPT_SUP_IND, "CIoT Optimizations Support Indication" }, /* 7.7.120 */ /* 221 */ {GTP_EXT_SCEF_PDN_CONNECTION, "SCEF PDN Connection" }, /* 7.7.121 */ /* 222 */ {GTP_EXT_IOV_UPDATES_COUNTER, "IOV_updates counter" }, /* 7.7.122 */ /* 223 */ {GTP_EXT_MAPPED_UE_USAGE_TYPE, "Mapped UE Usage Type" }, /* 7.7.123 */ /* 224 */ {GTP_EXT_UP_FUN_SEL_IND_FLAGS, "UP Function Selection Indication Flags" }, /* 7.7.124 */ /* 225-238 TLV Spare. For future use. */ /* 239-250 Reserved for the GPRS charging protocol (see GTP' in 3GPP TS 32.295 [33]) */ /* 249 */ {GTP_EXT_REL_PACK, "Sequence numbers of released packets IE"}, /* charging */ /* 250 */ {GTP_EXT_CAN_PACK, "Sequence numbers of canceled packets IE"}, /* charging */ /* 251 */ {GTP_EXT_CHRG_ADDR, "Charging Gateway address"}, /* 7.7.44 */ /* 252-254 Reserved for the GPRS charging protocol (see GTP' in 3GPP TS 32.295 [33]) */ /* 252 */ {GTP_EXT_DATA_REQ, "Data record packet"}, /* charging */ /* 253 */ {GTP_EXT_DATA_RESP, "Requests responded"}, /* charging */ /* 254 */ {GTP_EXT_NODE_ADDR, "Address of recommended node"}, /* charging */ /* 255 */ {GTP_EXT_PRIV_EXT, "Private Extension"}, {0, NULL} }; static value_string_ext gtpv1_val_ext = VALUE_STRING_EXT_INIT(gtpv1_val); /* GPRS: 9.60 v7.6.0, page 37 * UMTS: 29.060 v4.0, page 45 * ETSI TS 129 060 V9.4.0 (2010-10) Ch 7.7.1 */ static const value_string cause_type[] = { { 0, "Request IMSI"}, { 1, "Request IMEI"}, { 2, "Request IMSI and IMEI"}, { 3, "No identity needed"}, { 4, "MS refuses"}, { 5, "MS is not GPRS responding"}, { 6, "Reactivation Requested"}, { 7, "PDP address inactivity timer expires"}, /* For future use 8-48 */ /* Cause values reserved for GPRS charging * protocol use (see GTP' in 3GPP TS 32.295 [33]) * 49-63 */ { 59, "System failure"}, /* charging */ { 60, "The transmit buffers are becoming full"}, /* charging */ { 61, "The receive buffers are becoming full"}, /* charging */ { 62, "Another node is about to go down"}, /* charging */ { 63, "This node is about to go down"}, /* charging */ /* For future use 64-127 */ {128, "Request accepted"}, {129, "New PDP type due to network preference"}, {130, "New PDP type due to single address bearer only"}, /* For future use 131-176 */ /* Cause values reserved for GPRS charging * protocol use (see GTP' in 3GPP TS 32.295 [33]) * 177-191 */ {177, "CDR decoding error"}, {192, "Non-existent"}, {193, "Invalid message format"}, {194, "IMSI not known"}, {195, "MS is GPRS detached"}, {196, "MS is not GPRS responding"}, {197, "MS refuses"}, {198, "Version not supported"}, {199, "No resource available"}, {200, "Service not supported"}, {201, "Mandatory IE incorrect"}, {202, "Mandatory IE missing"}, {203, "Optional IE incorrect"}, {204, "System failure"}, {205, "Roaming restriction"}, {206, "P-TMSI signature mismatch"}, {207, "GPRS connection suspended"}, {208, "Authentication failure"}, {209, "User authentication failed"}, {210, "Context not found"}, {211, "All PDP dynamic addresses are occupied"}, {212, "No memory is available"}, {213, "Relocation failure"}, {214, "Unknown mandatory extension header"}, {215, "Semantic error in the TFT operation"}, {216, "Syntactic error in the TFT operation"}, {217, "Semantic errors in packet filter(s)"}, {218, "Syntactic errors in packet filter(s)"}, {219, "Missing or unknown APN"}, {220, "Unknown PDP address or PDP type"}, {221, "PDP context without TFT already activated"}, {222, "APN access denied - no subscription"}, {223, "APN Restriction type incompatibility with currently active PDP Contexts"}, {224, "MS MBMS Capabilities Insufficient"}, {225, "Invalid Correlation-ID"}, {226, "MBMS Bearer Context Superseded"}, {227, "Bearer Control Mode violation"}, {228, "Collision with network initiated request"}, {229, "APN Congestion"}, {230, "Bearer handling not supported"}, {231, "Target access restricted for the subscriber" }, {232, "UE is temporarily not reachable due to power saving" }, {233, "Relocation failure due to NAS message redirection"}, /* For future use -240 */ /* Cause values reserved for GPRS charging * protocol use (see GTP' in 3GPP TS 32.295 [33]) * 241-255 */ {252, "Request related to possibly duplicated packets already fulfilled"}, /* charging */ {253, "Request already fulfilled"}, /* charging */ {254, "Sequence numbers of released/cancelled packets IE incorrect"}, /* charging */ {255, "Request not fulfilled"}, /* charging */ {0, NULL} }; value_string_ext cause_type_ext = VALUE_STRING_EXT_INIT(cause_type); /* GPRS: 9.02 v7.7.0 * UMTS: 29.002 v4.2.1, chapter 17.5, page 268 * Imported gsm_old_GSMMAPLocalErrorcode_vals from gsm_map from gsm_map */ static const value_string gsn_addr_type[] = { {0x00, "IPv4"}, {0x01, "IPv6"}, {0, NULL} }; static const value_string pdp_type[] = { {0x00, "X.25"}, {0x01, "PPP"}, {0x02, "OSP:IHOSS"}, {0x21, "IPv4"}, {0x57, "IPv6"}, {0x8d, "IPv4v6"}, {0, NULL} }; static const value_string pdp_org_type[] = { {0, "ETSI"}, {1, "IETF"}, {0, NULL} }; static const value_string qos_delay_type[] = { {0x00, "Subscribed delay class (in MS to network direction)"}, {0x01, "Delay class 1"}, {0x02, "Delay class 2"}, {0x03, "Delay class 3"}, {0x04, "Delay class 4 (best effort)"}, {0x07, "Reserved"}, {0, NULL} }; static const value_string qos_reliability_type[] = { {0x00, "Subscribed reliability class (in MS to network direction)"}, {0x01, "Acknowledged GTP, LLC, and RLC; Protected data"}, {0x02, "Unacknowledged GTP, Ack LLC/RLC, Protected data"}, {0x03, "Unacknowledged GTP/LLC, Ack RLC, Protected data"}, {0x04, "Unacknowledged GTP/LLC/RLC, Protected data"}, {0x05, "Unacknowledged GTP/LLC/RLC, Unprotected data"}, {0x07, "Reserved"}, {0, NULL} }; static const value_string qos_peak_type[] = { {0x00, "Subscribed peak throughput (in MS to network direction)"}, {0x01, "Up to 1 000 oct/s"}, {0x02, "Up to 2 000 oct/s"}, {0x03, "Up to 4 000 oct/s"}, {0x04, "Up to 8 000 oct/s"}, {0x05, "Up to 16 000 oct/s"}, {0x06, "Up to 32 000 oct/s"}, {0x07, "Up to 64 000 oct/s"}, {0x08, "Up to 128 000 oct/s"}, {0x09, "Up to 256 000 oct/s"}, /* QoS Peak throughput classes from 0x0A to 0x0F (from 10 to 15) are subscribed */ {0x0A, "Reserved"}, {0x0B, "Reserved"}, {0x0C, "Reserved"}, {0x0D, "Reserved"}, {0x0E, "Reserved"}, {0x0F, "Reserved"}, {0, NULL} }; static const value_string qos_precedence_type[] = { {0x00, "Subscribed precedence (in MS to network direction)"}, {0x01, "High priority"}, {0x02, "Normal priority"}, {0x03, "Low priority"}, {0x07, "Reserved"}, {0, NULL} }; static const value_string qos_mean_type[] = { {0x00, "Subscribed mean throughput (in MS to network direction)"}, {0x01, "100 oct/h"}, /* Class 2 */ {0x02, "200 oct/h"}, /* Class 3 */ {0x03, "500 oct/h"}, /* Class 4 */ {0x04, "1 000 oct/h"}, /* Class 5 */ {0x05, "2 000 oct/h"}, /* Class 6 */ {0x06, "5 000 oct/h"}, /* Class 7 */ {0x07, "10 000 oct/h"}, /* Class 8 */ {0x08, "20 000 oct/h"}, /* Class 9 */ {0x09, "50 000 oct/h"}, /* Class 10 */ {0x0A, "100 000 oct/h"}, /* Class 11 */ {0x0B, "200 000 oct/h"}, /* Class 12 */ {0x0C, "500 000 oct/h"}, /* Class 13 */ {0x0D, "1 000 000 oct/h"}, /* Class 14 */ {0x0E, "2 000 000 oct/h"}, /* Class 15 */ {0x0F, "5 000 000 oct/h"}, /* Class 16 */ {0x10, "10 000 000 oct/h"}, /* Class 17 */ {0x11, "20 000 000 oct/h"}, /* Class 18 */ {0x12, "50 000 000 oct/h"}, /* Class 19 */ /* QoS Mean throughput classes from 0x13 to 0x1E (from 19 to 30) are subscribed */ {0x13, "Reserved"}, {0x14, "Reserved"}, {0x15, "Reserved"}, {0x16, "Reserved"}, {0x17, "Reserved"}, {0x18, "Reserved"}, {0x19, "Reserved"}, {0x1A, "Reserved"}, {0x1B, "Reserved"}, {0x1C, "Reserved"}, {0x1D, "Reserved"}, {0x1E, "Reserved"}, {0x1F, "Best effort"}, /* Class 1 */ {0, NULL} }; static value_string_ext qos_mean_type_ext = VALUE_STRING_EXT_INIT(qos_mean_type); static const value_string qos_del_err_sdu[] = { {0x00, "Subscribed delivery of erroneous SDUs (in MS to network direction)"}, {0x01, "No detect ('-')"}, {0x02, "Erroneous SDUs are delivered ('yes')"}, {0x03, "Erroneous SDUs are not delivered ('no')"}, {0x07, "Reserved"}, /* All other values are reserved */ {0, NULL} }; static const value_string qos_del_order[] = { {0x00, "Subscribed delivery order (in MS to network direction)"}, {0x01, "With delivery order ('yes')"}, {0x02, "Without delivery order ('no')"}, {0x03, "Reserved"}, /* All other values are reserved */ {0, NULL} }; static const value_string qos_traf_class[] = { {0x00, "Subscribed traffic class (in MS to network direction)"}, {0x01, "Conversational class"}, {0x02, "Streaming class"}, {0x03, "Interactive class"}, {0x04, "Background class"}, {0x07, "Reserved"}, /* All other values are reserved */ {0, NULL} }; static const value_string qos_max_sdu_size[] = { {0x00, "Subscribed maximum SDU size (in MS to network direction"}, /* For values from 0x01 to 0x96 (from 1 to 150), use a granularity of 10 octets */ {0x97, "1502 octets"}, {0x98, "1510 octets"}, {0x99, "1520 octets"}, {0, NULL} /* All other values are reserved */ }; static const value_string qos_max_ul[] = { {0x00, "Subscribed maximum bit rate for uplink (in MS to network direction)"}, /* For values from 0x01 to 0x3F (from 1 to 63), use a granularity of 1 kbps */ /* For values from 0x40 to 0x7F, value = 64 kbps + (value - 0x40) * 8 kbps */ /* For values from 0x80 to 0xFE, value = 576 kbps + (value - 0x80) * 64 kbps */ {0xFF, "0 kbps"}, {0, NULL} }; static const value_string qos_max_dl[] = { {0x00, "Subscribed maximum bit rate for downlink (in MS to network direction)"}, /* For values from 0x01 to 0x3F (from 1 to 63), use a granularity of 1 kbps */ /* For values from 0x40 to 0x7F, value = 64 kbps + (value - 0x40) * 8 kbps */ /* For values from 0x80 to 0xFE, value = 576 kbps + (value - 0x80) * 64 kbps */ {0xFF, "0 kbps"}, {0, NULL} }; static const value_string qos_res_ber[] = { {0x00, "Subscribed residual BER (in MS to network direction)"}, {0x01, "1/20 = 5x10^-2"}, {0x02, "1/100 = 1x10^-2"}, {0x03, "1/200 = 5x10^-3"}, {0x04, "1/250 = 4x10^-3"}, {0x05, "1/1 000 = 1x10^-3"}, {0x06, "1/10 000 = 1x10^-4"}, {0x07, "1/100 000 = 1x10^-5"}, {0x08, "1/1 000 000 = 1x10^-6"}, {0x09, "3/50 000 000 = 6x10^-8"}, {0x0F, "Reserved"}, /* All other values are reserved */ {0, NULL} }; static const value_string qos_sdu_err_ratio[] = { {0x00, "Subscribed SDU error ratio (in MS to network direction)"}, {0x01, "1/100 = 1x10^-2"}, {0x02, "7/1000 = 7x10^-3"}, {0x03, "1/1 000 = 1x10^-3"}, {0x04, "1/10 000 = 1x10^-4"}, {0x05, "1/100 000 = 1x10^-5"}, {0x06, "1/1 000 000 = 1x10^-6"}, {0x07, "1/10 = 1x10^-1"}, {0x0F, "Reserved"}, /* All other values are reserved */ {0, NULL} }; static const value_string qos_traf_handl_prio[] = { {0x00, "Subscribed traffic handling priority (in MS to network direction)"}, {0x01, "Priority level 1"}, {0x02, "Priority level 2"}, {0x03, "Priority level 3"}, {0, NULL} }; static const value_string qos_trans_delay[] = { {0x00, "Subscribed Transfer Delay (in MS to network direction)"}, {0x01, "10 ms"}, /* Using a granularity of 10 ms */ {0x02, "20 ms"}, {0x03, "30 ms"}, {0x04, "40 ms"}, {0x05, "50 ms"}, {0x06, "60 ms"}, {0x07, "70 ms"}, {0x08, "80 ms"}, {0x09, "90 ms"}, {0x0A, "100 ms"}, {0x0B, "110 ms"}, {0x0C, "120 ms"}, {0x0D, "130 ms"}, {0x0E, "140 ms"}, {0x0F, "150 ms"}, {0x10, "200 ms"}, /* (For values from 0x10 to 0x1F, value = 200 ms + (value - 0x10) * 50 ms */ {0x11, "250 ms"}, {0x12, "300 ms"}, {0x13, "350 ms"}, {0x14, "400 ms"}, {0x15, "450 ms"}, {0x16, "500 ms"}, {0x17, "550 ms"}, {0x18, "600 ms"}, {0x19, "650 ms"}, {0x1A, "700 ms"}, {0x1B, "750 ms"}, {0x1C, "800 ms"}, {0x1D, "850 ms"}, {0x1E, "900 ms"}, {0x1F, "950 ms"}, {0x20, "1000 ms"}, /* For values from 0x20 to 0x3E, value = 1000 ms + (value - 0x20) * 100 ms */ {0x21, "1100 ms"}, {0x22, "1200 ms"}, {0x23, "1300 ms"}, {0x24, "1400 ms"}, {0x25, "1500 ms"}, {0x26, "1600 ms"}, {0x27, "1700 ms"}, {0x28, "1800 ms"}, {0x29, "1900 ms"}, {0x2A, "2000 ms"}, {0x2B, "2100 ms"}, {0x2C, "2200 ms"}, {0x2D, "2300 ms"}, {0x2E, "2400 ms"}, {0x2F, "2500 ms"}, {0x30, "2600 ms"}, {0x31, "2700 ms"}, {0x32, "2800 ms"}, {0x33, "2900 ms"}, {0x34, "3000 ms"}, {0x35, "3100 ms"}, {0x36, "3200 ms"}, {0x37, "3300 ms"}, {0x38, "3400 ms"}, {0x39, "3500 ms"}, {0x3A, "3600 ms"}, {0x3B, "3700 ms"}, {0x3C, "3800 ms"}, {0x3D, "3900 ms"}, {0x3E, "4000 ms"}, {0x3F, "Reserved"}, {0, NULL} }; static value_string_ext qos_trans_delay_ext = VALUE_STRING_EXT_INIT(qos_trans_delay); static const value_string qos_guar_ul[] = { {0x00, "Subscribed guaranteed bit rate for uplink (in MS to network direction)"}, /* For values from 0x01 to 0x3F (from 1 to 63), use a granularity of 1 kbps */ /* For values from 0x40 to 0x7F, value = 64 kbps + (value - 0x40) * 8 kbps */ /* For values from 0x80 to 0xFE, value = 576 kbps + (value - 0x80) * 64 kbps */ {0xFF, "0 kbps"}, {0, NULL} }; static const value_string src_stat_desc_vals[] = { {0x00, "unknown"}, {0x01, "speech"}, {0, NULL} }; static const true_false_string gtp_sig_ind = { "Optimised for signalling traffic", "Not optimised for signalling traffic" }; static const value_string qos_guar_dl[] = { {0x00, "Subscribed guaranteed bit rate for downlink (in MS to network direction)"}, /* For values from 0x01 to 0x3F (from 1 to 63), use a granularity of 1 kbps */ /* For values from 0x40 to 0x7F, value = 64 kbps + (value - 0x40) * 8 kbps */ /* For values from 0x80 to 0xFE, value = 576 kbps + (value - 0x80) * 64 kbps */ {0xFF, "0 kbps"}, {0, NULL} }; static const value_string sel_mode_type[] = { {0, "MS or network provided APN, subscribed verified"}, {1, "MS provided APN, subscription not verified"}, {2, "Network provided APN, subscription not verified"}, {3, "For future use (Network provided APN, subscription not verified"}, /* Shall not be sent. If received, shall be sent as value 2 */ {0, NULL} }; static const value_string tr_comm_type[] = { {1, "Send data record packet"}, {2, "Send possibly duplicated data record packet"}, {3, "Cancel data record packet"}, {4, "Release data record packet"}, {0, NULL} }; /* * UMTS: 23.040 v14.0.0, chapter 3.3.2 */ static const value_string ms_not_reachable_type[] = { { 0, "No paging response via the MSC"}, { 1, "IMSI detached"}, { 2, "Roaming restriction"}, { 3, "Deregistered in the HLR for non GPRS"}, { 4, "MS purge for non GPRS"}, { 5, "No paging response via the SGSN"}, { 6, "GPRS detached"}, { 7, "Deregistered in the HLR for non GPRS"}, { 8, "MS purged for GPRS"}, { 9, "Unidentified subscriber via the MSC"}, {10, "Unidentified subscriber via the SGSN"}, {11, "Deregistered in the HSS/HLR for IMS"}, {12, "No response via the IP-SM-GW"}, {13, "The MS is temporarily unavailable"}, {0, NULL} /* All other values are reserved */ }; /* UMTS: 25.413 v3.4.0, chapter 9.2.1.4, page 80 */ static const value_string ranap_cause_type[] = { /* Radio Network Layer Cause (1-->64) */ { 1, "RAB preempted"}, { 2, "Trelocoverall Expiry"}, { 3, "Trelocprep Expiry"}, { 4, "Treloccomplete Expiry"}, { 5, "Tqueuing Expiry"}, { 6, "Relocation Triggered"}, { 7, "TRELOCalloc Expiry"}, { 8, "Unable to Establish During Relocation"}, { 9, "Unknown Target RNC"}, { 10, "Relocation Cancelled"}, { 11, "Successful Relocation"}, { 12, "Requested Ciphering and/or Integrity Protection Algorithms not Supported"}, { 13, "Change of Ciphering and/or Integrity Protection is not supported"}, { 14, "Failure in the Radio Interface Procedure"}, { 15, "Release due to UTRAN Generated Reason"}, { 16, "User Inactivity"}, { 17, "Time Critical Relocation"}, { 18, "Requested Traffic Class not Available"}, { 19, "Invalid RAB Parameters Value"}, { 20, "Requested Maximum Bit Rate not Available"}, { 21, "Requested Guaranteed Bit Rate not Available"}, { 22, "Requested Transfer Delay not Achievable"}, { 23, "Invalid RAB Parameters Combination"}, { 24, "Condition Violation for SDU Parameters"}, { 25, "Condition Violation for Traffic Handling Priority"}, { 26, "Condition Violation for Guaranteed Bit Rate"}, { 27, "User Plane Versions not Supported"}, { 28, "Iu UP Failure"}, { 29, "Relocation Failure in Target CN/RNC or Target System"}, { 30, "Invalid RAB ID"}, { 31, "No Remaining RAB"}, { 32, "Interaction with other procedure"}, { 33, "Requested Maximum Bit Rate for DL not Available"}, { 34, "Requested Maximum Bit Rate for UL not Available"}, { 35, "Requested Guaranteed Bit Rate for DL not Available"}, { 36, "Requested Guaranteed Bit Rate for UL not Available"}, { 37, "Repeated Integrity Checking Failure"}, { 38, "Requested Report Type not supported"}, { 39, "Request superseded"}, { 40, "Release due to UE generated signalling connection release"}, { 41, "Resource Optimisation Relocation"}, { 42, "Requested Information Not Available"}, { 43, "Relocation desirable for radio reasons"}, { 44, "Relocation not supported in Target RNC or Target System"}, { 45, "Directed Retry"}, { 46, "Radio Connection With UE Lost"}, { 47, "rNC-unable-to-establish-all-RFCs"}, { 48, "deciphering-keys-not-available"}, { 49, "dedicated-assistance-data-not-available"}, { 50, "relocation-target-not-allowed"}, { 51, "location-reporting-congestion"}, { 52, "reduce-load-in-serving-cell"}, { 53, "no-radio-resources-available-in-target-cell"}, { 54, "gERAN-Iumode-failure"}, { 55, "access-restricted-due-to-shared-networks"}, { 56, "incoming-relocation-not-supported-due-to-PUESBINE-feature"}, { 57, "traffic-load-in-the-target-cell-higher-than-in-the-source-cell"}, { 58, "mBMS-no-multicast-service-for-this-UE"}, { 59, "mBMS-unknown-UE-ID"}, { 60, "successful-MBMS-session-start-no-data-bearer-necessary"}, { 61, "mBMS-superseded-due-to-NNSF"}, { 62, "mBMS-UE-linking-already-done"}, { 63, "mBMS-UE-de-linking-failure-no-existing-UE-linking"}, { 64, "tMGI-unknown"}, /* Transport Layer Cause (65-->80) */ { 65, "Signalling Transport Resource Failure"}, { 66, "Iu Transport Connection Failed to Establish"}, /* NAS Cause (81-->96) */ { 81, "User Restriction Start Indication"}, { 82, "User Restriction End Indication"}, { 83, "Normal Release"}, /* Protocol Cause (97-->112) */ { 97, "Transfer Syntax Error"}, { 98, "Semantic Error"}, { 99, "Message not compatible with receiver state"}, { 100, "Abstract Syntax Error (Reject)"}, { 101, "Abstract Syntax Error (Ignore and Notify)"}, { 102, "Abstract Syntax Error (Falsely Constructed Message"}, /* Miscellaneous Cause (113-->128) */ { 113, "O & M Intervention"}, { 114, "No Resource Available"}, { 115, "Unspecified Failure"}, { 116, "Network Optimisation"}, /* Non-standard Cause (129-->255) */ /* ranap_CauseRadioNetworkExtension ?? { 257, "iP-multicast-address-and-APN-not-valid" }, { 258, "mBMS-de-registration-rejected-due-to-implicit-registration" }, { 259, "mBMS-request-superseded" }, { 260, "mBMS-de-registration-during-session-not-allowed" }, { 261, "mBMS-no-data-bearer-necessary" }, */ {0, NULL} }; static value_string_ext ranap_cause_type_ext = VALUE_STRING_EXT_INIT(ranap_cause_type); static const value_string mm_sec_modep[] = { {0, "Used cipher value, UMTS keys and Quintuplets"}, {1, "GSM key and triplets"}, {2, "UMTS key and quintuplets"}, {3, "GSM key and quintuplets"}, {0, NULL} }; static const value_string gtp_cipher_algorithm[] = { {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} }; static const value_string gtp_ext_rat_type_vals[] = { {0, "Reserved"}, {1, "UTRAN"}, {2, "GERAN"}, {3, "WLAN"}, {4, "GAN"}, {5, "HSPA Evolution"}, {6, "EUTRAN (WB-E-UTRAN)"}, {7, "Virtual"}, {8, "EUTRAN-NB-IoT"}, {0, NULL} }; static const value_string chg_rep_act_type_vals[] = { {0, "Stop Reporting"}, {1, "Start Reporting CGI/SAI"}, {2, "Start Reporting RAI"}, {0, NULL} }; static const value_string geographic_location_type[] = { {0, "Cell Global Identification (CGI)"}, {1, "Service Area Identity (SAI)"}, {2, "Routing Area Identification (RAI)"}, /* reserved for future used (3-->127) */ /* values below used by Radius */ {128, "TAI"}, {129, "ECGI"}, {130, "TAI & ECGI"}, {131, "eNodeB ID"}, {132, "TAI and eNodeB ID"}, {133, "extended eNodeB ID"}, {134, "TAI and extended eNodeB ID"}, {135, "NCGI"}, {136, "5GS TAI"}, {137, "5GS TAI and NCGI"}, {138, "NG-RAN Node ID"}, {139, "5GS TAI and NG-RAN Node ID"}, /* reserved for future used (140-->255) */ {0, NULL} }; static const value_string gtp_ext_hdr_pdu_ses_cont_pdu_type_vals[] = { {0, "DL PDU SESSION INFORMATION"}, {1, "UL PDU SESSION INFORMATION"}, {0, NULL} }; #define MM_PROTO_GROUP_CALL_CONTROL 0x00 #define MM_PROTO_BROADCAST_CALL_CONTROL 0x01 #define MM_PROTO_PDSS1 0x02 #define MM_PROTO_CALL_CONTROL 0x03 #define MM_PROTO_PDSS2 0x04 #define MM_PROTO_MM_NON_GPRS 0x05 #define MM_PROTO_RR_MGMT 0x06 #define MM_PROTO_MM_GPRS 0x08 #define MM_PROTO_SMS 0x09 #define MM_PROTO_SESSION_MGMT 0x0A #define MM_PROTO_NON_CALL_RELATED 0x0B static GHashTable *gtpstat_msg_idx_hash; static void gtpstat_init(struct register_srt* srt _U_, GArray* srt_array) { if (gtpstat_msg_idx_hash != NULL) { g_hash_table_destroy(gtpstat_msg_idx_hash); } gtpstat_msg_idx_hash = g_hash_table_new(g_direct_hash, g_direct_equal); init_srt_table("GTP Requests", NULL, srt_array, 0, NULL, NULL, NULL); } static tap_packet_status gtpstat_packet(void *pss, packet_info *pinfo, epan_dissect_t *edt _U_, const void *prv, tap_flags_t flags _U_) { unsigned i = 0; srt_stat_table *gtp_srt_table; srt_data_t *data = (srt_data_t *)pss; const gtp_msg_hash_t *gtp=(const gtp_msg_hash_t *)prv; int idx = 0; /* we are only interested in reply packets */ if(gtp->is_request){ return TAP_PACKET_DONT_REDRAW; } /* if we have not seen the request, just ignore it */ if(!gtp->req_frame){ return TAP_PACKET_DONT_REDRAW; } /* Redoing the message indexing is bit redundant (and keeps us from * passing in the filter "gtp.message" in init_srt_table above), * but using message type as such would yield a long gtp_srt_table. */ gtp_srt_table = g_array_index(data->srt_array, srt_stat_table*, i); idx = GPOINTER_TO_UINT(g_hash_table_lookup(gtpstat_msg_idx_hash, GUINT_TO_POINTER(gtp->msgtype))); /* Store the value incremented by 1 to avoid confusing index 0 with NULL */ if (idx == 0) { idx = g_hash_table_size(gtpstat_msg_idx_hash); g_hash_table_insert(gtpstat_msg_idx_hash, GUINT_TO_POINTER(gtp->msgtype), GUINT_TO_POINTER(idx + 1)); init_srt_table_row(gtp_srt_table, idx, val_to_str_ext_const(gtp->msgtype, >p_message_type_ext, "Unknown")); } else { idx -= 1; } add_srt_table_data(gtp_srt_table, idx, >p->req_time, pinfo); return TAP_PACKET_REDRAW; } static dissector_handle_t eth_handle; static dissector_handle_t ip_handle; static dissector_handle_t ipv6_handle; static dissector_handle_t ppp_handle; static dissector_handle_t sync_handle; static dissector_handle_t gtpcdr_handle; static dissector_handle_t sndcpxid_handle; static dissector_handle_t gtpv2_handle; static dissector_handle_t bssgp_handle; static dissector_handle_t pdcp_nr_handle; static dissector_handle_t pdcp_lte_handle; static dissector_handle_t gtp_tpdu_custom_handle; static dissector_table_t bssap_pdu_type_table; static int proto_pdcp_lte; uint32_t gtp_session_count; /* Relation between frame -> session */ wmem_map_t* session_table; /* Relation between -> frame */ wmem_map_t* frame_map; typedef struct { uint32_t teid; address addr; } gtp_info_t; static unsigned gtp_info_hash(const void *key) { const gtp_info_t *k = (const gtp_info_t *)key; /* The TEID is likely unique, so just use it. */ return g_int_hash(&k->teid); } static gboolean gtp_info_equal(const void *key1, const void *key2) { const gtp_info_t *a = (const gtp_info_t *)key1; const gtp_info_t *b = (const gtp_info_t *)key2; return (a->teid == b->teid && (cmp_address(&a->addr, &b->addr) == 0)); } /* GTP Session funcs*/ uint32_t get_frame(address ip, uint32_t teid, uint32_t *frame) { gtp_info_t info; uint32_t *value; info.teid = teid; copy_address_shallow(&info.addr, &ip); value = wmem_map_lookup(frame_map, &info); if (value != NULL) { *frame = GPOINTER_TO_UINT(value); return 1; } return 0; } static gboolean frame_equal(void *key _U_, void *value, void *data){ uint32_t frame = GPOINTER_TO_UINT(data); return (GPOINTER_TO_UINT(value) == frame); } void remove_frame_info(uint32_t f) { /* XXX: This iterates through the entire map and it is slow if done * often. For large files with lots of removals, there are better * alternatives, e.g. marking sessions as expired and then periodically * removing all expired sessions from the map, or using a bijective * map to coordinate removals. */ wmem_map_foreach_remove(frame_map, frame_equal, GUINT_TO_POINTER(f)); } void add_gtp_session(uint32_t frame, uint32_t session) { wmem_map_insert(session_table, GUINT_TO_POINTER(frame), GUINT_TO_POINTER(session)); } bool teid_exists(uint32_t teid, wmem_list_t *teid_list) { wmem_list_frame_t *elem; uint32_t *info; bool found; found = false; elem = wmem_list_head(teid_list); while (!found && elem) { info = (uint32_t*)wmem_list_frame_data(elem); found = *info == teid; elem = wmem_list_frame_next(elem); } return found; } bool ip_exists(address ip, wmem_list_t *ip_list) { wmem_list_frame_t *elem; address *info; bool found; found = false; elem = wmem_list_head(ip_list); while (!found && elem) { info = (address*)wmem_list_frame_data(elem); found = addresses_equal(info, &ip); elem = wmem_list_frame_next(elem); } return found; } /* wmem_map_foreach() callback used in fill_map() */ static void remove_session_from_table(void *key, void *val, void *userdata) { unsigned fr = GPOINTER_TO_UINT(key); unsigned session = GPOINTER_TO_UINT(val); unsigned remove_session = GPOINTER_TO_UINT(userdata); /* If it's the session we are looking for, we remove all the frame information */ if (session == remove_session) { remove_frame_info(fr); } } void fill_map(wmem_list_t *teid_list, wmem_list_t *ip_list, uint32_t frame) { wmem_list_frame_t *elem_ip, *elem_teid; gtp_info_t *gtp_info; uint32_t teid, session; address *ip; /* XXX: This adds all combinations of addresses and TEIDs. It * should only add matching pairs for a F-TEID, though this is * difficult to determine for GTPv1 (especially if the check_etsi * preference is off) unlike with GTPv2. * It also should not add anything that uses the reserved TEID * (0), such as happens in GTPv2 on S11/S4 interfaces for the * PGW S5/S8 TEID on initial attach, etc. */ elem_ip = wmem_list_head(ip_list); while (elem_ip) { ip = (address*)wmem_list_frame_data(elem_ip); /* We loop over the teid list */ elem_teid = wmem_list_head(teid_list); while (elem_teid) { teid = *(uint32_t*)wmem_list_frame_data(elem_teid); gtp_info = wmem_new0(wmem_file_scope(), gtp_info_t); gtp_info->teid = teid; copy_address_wmem(wmem_file_scope(), >p_info->addr, ip); if (wmem_map_lookup(frame_map, gtp_info)) { /* If the teid and ip already maps to a session, that means * that we need to remove old info about that session */ /* We look for its session ID */ session = GPOINTER_TO_UINT(wmem_map_lookup(session_table, GUINT_TO_POINTER(frame))); if (session) { /* If the msg has the same session ID and it's not the upd req we have to remove its info */ wmem_map_foreach(session_table, remove_session_from_table, GUINT_TO_POINTER(session)); } } wmem_map_insert(frame_map, gtp_info, GUINT_TO_POINTER(frame)); elem_teid = wmem_list_frame_next(elem_teid); } elem_ip = wmem_list_frame_next(elem_ip); } } bool is_cause_accepted(uint8_t cause, uint32_t version) { if (version == 1) { return cause == 128 || cause == 129 || cause == 130; } else if (version == 2) { return cause == 16 || cause == 17 || cause == 18 || cause == 19; } return false; } static int decode_gtp_cause(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args); static int decode_gtp_imsi(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_rai(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_tlli(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ptmsi(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_qos_gprs(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_reorder(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_auth_tri(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_map_cause(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ptmsi_sig(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ms_valid(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_recovery(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_sel_mode(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_16(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args); static int decode_gtp_17(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args); static int decode_gtp_18(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_19(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_nsapi(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ranap_cause(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_rab_cntxt(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_rp_sms(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_rp(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_pkt_flow_id(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_chrg_char(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_trace_ref(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_trace_type(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ms_reason(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_tr_comm(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_chrg_id(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_user_addr(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_mm_cntxt(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_pdp_cntxt(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_apn(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_gsn_addr_common(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args, const char * tree_name, int hf_ipv4, int hf_ipv6); static int decode_gtp_gsn_addr(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args); static int decode_gtp_sgsn_addr_for_control_plane(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args); static int decode_gtp_sgsn_addr_for_user_plane(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args); static int decode_gtp_ggsn_addr_for_control_plane(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args); static int decode_gtp_ggsn_addr_for_user_plane(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args); static int decode_gtp_proto_conf(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_msisdn(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_qos_umts(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_auth_qui(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_tft(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_target_id(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_utran_cont(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_rab_setup(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_hdr_list(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_trigger_id(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_omc_id(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ran_tr_cont(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_pdp_cont_prio(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_add_rab_setup_inf(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_sgsn_no(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_common_flgs(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_apn_res(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ra_prio_lcs(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_rat_type(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_usr_loc_inf(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ms_time_zone(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_imeisv(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_camel_chg_inf_con(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_mbms_ue_ctx(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_tmgi(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_rim_ra(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_mbms_prot_conf_opt(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_mbms_sa(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_src_rnc_pdp_ctx_inf(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_add_trs_inf(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_hop_count(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_sel_plmn_id(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_mbms_ses_id(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_mbms_2g_3g_ind(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_enh_nsapi(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_mbms_ses_dur(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_add_mbms_trs_inf(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_mbms_ses_id_rep_no(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_mbms_time_to_data_tr(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ps_ho_req_ctx(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_bss_cont(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_cell_id(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_pdu_no(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_bssgp_cause(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_mbms_bearer_cap(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_rim_ra_disc(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_lst_set_up_pfc(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ps_handover_xid(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_direct_tnl_flg(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ms_inf_chg_rep_act(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_corrl_id(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_fqdn(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_evolved_allc_rtn_p1(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_evolved_allc_rtn_p2(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_extended_common_flgs(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_uci(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_csg_inf_rep_act(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_csg_id(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_cmi(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_apn_ambr(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ue_network_cap(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ue_ambr(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_apn_ambr_with_nsapi(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ggsn_back_off_time(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_sig_pri_ind(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_sig_pri_ind_w_nsapi(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_higher_br_16mb_flg(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_max_mbr_apn_ambr(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_add_mm_ctx_srvcc(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_add_flgs_srvcc(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_stn_sr(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_c_msisdn(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ext_ranap_cause(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ext_enodeb_id(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ext_sel_mode_w_nsapi(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ext_uli_timestamp(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ext_lhn_id_w_sapi(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ext_cn_op_sel_entity(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ue_usage_type(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_extended_common_flgs_II(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ext_node_id(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_ciot_opt_sup_ind(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_scef_pdn_conn(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_iov_updates_counter(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_mapped_ue_usage_type(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_up_fun_sel_ind_flags(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_bearer_cntrl_mod(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_mbms_flow_id(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_mbms_ip_mcast_dist(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_mbms_dist_ack(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_reliable_irat_ho_inf(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_rfsp_index(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_chrg_addr(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_rel_pack(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_can_pack(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_data_req(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_data_resp(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_node_addr(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_priv_ext(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); static int decode_gtp_unknown(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_); typedef struct { int optcode; int (*decode) (tvbuff_t *, int, packet_info *, proto_tree *, session_args_t *); } gtp_opt_t; static const gtp_opt_t gtpopt[] = { /* 0x01 */ {GTP_EXT_CAUSE, decode_gtp_cause}, /* 0x02 */ {GTP_EXT_IMSI, decode_gtp_imsi}, /* 0x03 */ {GTP_EXT_RAI, decode_gtp_rai}, /* 0x04 */ {GTP_EXT_TLLI, decode_gtp_tlli}, /* 0x05 */ {GTP_EXT_PTMSI, decode_gtp_ptmsi}, /* 0x06 */ {GTP_EXT_QOS_GPRS, decode_gtp_qos_gprs}, /* 0x07 */ /* 0x08 */ {GTP_EXT_REORDER, decode_gtp_reorder}, /* 0x09 */ {GTP_EXT_AUTH_TRI, decode_gtp_auth_tri}, /* 0x0a */ /* 0x0b */ {GTP_EXT_MAP_CAUSE, decode_gtp_map_cause}, /* 0x0c */ {GTP_EXT_PTMSI_SIG, decode_gtp_ptmsi_sig}, /* 0x0d */ {GTP_EXT_MS_VALID, decode_gtp_ms_valid}, /* 0x0e */ {GTP_EXT_RECOVER, decode_gtp_recovery}, /* 0x0f */ {GTP_EXT_SEL_MODE, decode_gtp_sel_mode}, /* 0x10 */ {GTP_EXT_16, decode_gtp_16}, /* 0x11 */ {GTP_EXT_17, decode_gtp_17}, /* 0x12 */ {GTP_EXT_18, decode_gtp_18}, /* 0x13 */ {GTP_EXT_19, decode_gtp_19}, /* 0x14 */ {GTP_EXT_NSAPI, decode_gtp_nsapi}, /* 0x15 */ {GTP_EXT_RANAP_CAUSE, decode_gtp_ranap_cause}, /* 0x16 */ {GTP_EXT_RAB_CNTXT, decode_gtp_rab_cntxt}, /* 0x17 */ {GTP_EXT_RP_SMS, decode_gtp_rp_sms}, /* 0x18 */ {GTP_EXT_RP, decode_gtp_rp}, /* 0x19 */ {GTP_EXT_PKT_FLOW_ID, decode_gtp_pkt_flow_id}, /* 0x1a */ {GTP_EXT_CHRG_CHAR, decode_gtp_chrg_char}, /* 0x1b */ {GTP_EXT_TRACE_REF, decode_gtp_trace_ref}, /* 0x1c */ {GTP_EXT_TRACE_TYPE, decode_gtp_trace_type}, /* 0x1d */ {GTPv1_EXT_MS_REASON, decode_gtp_ms_reason}, /* 0x7e */ {GTP_EXT_TR_COMM, decode_gtp_tr_comm}, /* 0x7f */ {GTP_EXT_CHRG_ID, decode_gtp_chrg_id}, /* 0x80 */ {GTP_EXT_USER_ADDR, decode_gtp_user_addr}, /* 0x81 */ {GTP_EXT_MM_CNTXT, decode_gtp_mm_cntxt}, /* 0x82 */ {GTP_EXT_PDP_CNTXT, decode_gtp_pdp_cntxt}, /* 0x83 */ {GTP_EXT_APN, decode_gtp_apn}, /* 0x84 */ {GTP_EXT_PROTO_CONF, decode_gtp_proto_conf}, /* 0x85 */ {GTP_EXT_GSN_ADDR, decode_gtp_gsn_addr}, /* 0x86 */ {GTP_EXT_MSISDN, decode_gtp_msisdn}, /* 0x87 */ {GTP_EXT_QOS_UMTS, decode_gtp_qos_umts}, /* 3G */ /* 0x88 */ {GTP_EXT_AUTH_QUI, decode_gtp_auth_qui}, /* 3G */ /* 0x89 */ {GTP_EXT_TFT, decode_gtp_tft}, /* 3G */ /* 0x8a */ {GTP_EXT_TARGET_ID, decode_gtp_target_id}, /* 3G */ /* 0x8b */ {GTP_EXT_UTRAN_CONT, decode_gtp_utran_cont}, /* 3G */ /* 0x8c */ {GTP_EXT_RAB_SETUP, decode_gtp_rab_setup}, /* 3G */ /* 0x8d */ {GTP_EXT_HDR_LIST, decode_gtp_hdr_list}, /* 3G */ /* 0x8e */ {GTP_EXT_TRIGGER_ID, decode_gtp_trigger_id}, /* 3G */ /* 0x8f */ {GTP_EXT_OMC_ID, decode_gtp_omc_id}, /* 3G */ /* TS 29 060 V6.11.0 */ /* 0x90 */ {GTP_EXT_RAN_TR_CONT, decode_gtp_ran_tr_cont}, /* 7.7.43 */ /* 0x91 */ {GTP_EXT_PDP_CONT_PRIO, decode_gtp_pdp_cont_prio}, /* 7.7.45 */ /* 0x92 */ {GTP_EXT_ADD_RAB_SETUP_INF, decode_gtp_add_rab_setup_inf}, /* 7.7.45A */ /* 0x93 */ {GTP_EXT_SGSN_NO, decode_gtp_sgsn_no}, /* 7.7.47 */ /* 0x94 */ {GTP_EXT_COMMON_FLGS, decode_gtp_common_flgs}, /* 7.7.48 */ /* 0x95 */ {GTP_EXT_APN_RES, decode_gtp_apn_res}, /* 3G */ /* 0x96 */ {GTP_EXT_RA_PRIO_LCS, decode_gtp_ra_prio_lcs}, /* 7.7.25B */ /* 0x97 */ {GTP_EXT_RAT_TYPE, decode_gtp_rat_type}, /* 3G */ /* 0x98 */ {GTP_EXT_USR_LOC_INF, decode_gtp_usr_loc_inf}, /* 7.7.51 */ /* 0x99 */ {GTP_EXT_MS_TIME_ZONE, decode_gtp_ms_time_zone}, /* 7.7.52 */ /* 0x9a */ {GTP_EXT_IMEISV, decode_gtp_imeisv}, /* 3G 7.7.53 */ /* 0x9b */ {GTP_EXT_CAMEL_CHG_INF_CON, decode_gtp_camel_chg_inf_con}, /* 7.7.54 */ /* 0x9c */ {GTP_EXT_MBMS_UE_CTX, decode_gtp_mbms_ue_ctx}, /* 7.7.55 */ /* 0x9d */ {GTP_EXT_TMGI, decode_gtp_tmgi}, /* 7.7.56 */ /* 0x9e */ {GTP_EXT_RIM_RA, decode_gtp_rim_ra}, /* 7.7.57 */ /* 0x9f */ {GTP_EXT_MBMS_PROT_CONF_OPT, decode_gtp_mbms_prot_conf_opt}, /* 7.7.58 */ /* 0xa0 */ {GTP_EXT_MBMS_SA, decode_gtp_mbms_sa}, /* 7.7.60 */ /* 0xa1 */ {GTP_EXT_SRC_RNC_PDP_CTX_INF, decode_gtp_src_rnc_pdp_ctx_inf}, /* 7.7.61 */ /* 0xa2 */ {GTP_EXT_ADD_TRS_INF, decode_gtp_add_trs_inf}, /* 7.7.62 */ /* 0xa3 */ {GTP_EXT_HOP_COUNT, decode_gtp_hop_count}, /* 7.7.63 */ /* 0xa4 */ {GTP_EXT_SEL_PLMN_ID, decode_gtp_sel_plmn_id}, /* 7.7.64 */ /* 0xa5 */ {GTP_EXT_MBMS_SES_ID, decode_gtp_mbms_ses_id}, /* 7.7.65 */ /* 0xa6 */ {GTP_EXT_MBMS_2G_3G_IND, decode_gtp_mbms_2g_3g_ind}, /* 7.7.66 */ /* 0xa7 */ {GTP_EXT_ENH_NSAPI, decode_gtp_enh_nsapi}, /* 7.7.67 */ /* 0xa8 */ {GTP_EXT_MBMS_SES_DUR, decode_gtp_mbms_ses_dur}, /* 7.7.59 */ /* 0xa9 */ {GTP_EXT_ADD_MBMS_TRS_INF, decode_gtp_add_mbms_trs_inf}, /* 7.7.68 */ /* 0xaa */ {GTP_EXT_MBMS_SES_ID_REP_NO, decode_gtp_mbms_ses_id_rep_no}, /* 7.7.69 */ /* 0xab */ {GTP_EXT_MBMS_TIME_TO_DATA_TR, decode_gtp_mbms_time_to_data_tr}, /* 7.7.70 */ /* 0xac */ {GTP_EXT_PS_HO_REQ_CTX, decode_gtp_ps_ho_req_ctx}, /* 7.7.71 */ /* 0xad */ {GTP_EXT_BSS_CONT, decode_gtp_bss_cont}, /* 7.7.72 */ /* 0xae */ {GTP_EXT_CELL_ID, decode_gtp_cell_id}, /* 7.7.73 */ /* 0xaf */ {GTP_EXT_PDU_NO, decode_gtp_pdu_no}, /* 7.7.74 */ /* 0xb0 */ {GTP_EXT_BSSGP_CAUSE, decode_gtp_bssgp_cause}, /* 7.7.75 */ /* 0xb1 */ {GTP_EXT_REQ_MBMS_BEARER_CAP, decode_gtp_mbms_bearer_cap}, /* 7.7.76 */ /* 0xb2 */ {GTP_EXT_RIM_ROUTING_ADDR_DISC, decode_gtp_rim_ra_disc}, /* 7.7.77 */ /* 0xb3 */ {GTP_EXT_LIST_OF_SETUP_PFCS, decode_gtp_lst_set_up_pfc}, /* 7.7.78 */ /* 0xb4 */ {GTP_EXT_PS_HANDOVER_XIP_PAR, decode_gtp_ps_handover_xid}, /* 7.7.79 */ /* 0xb5 */ {GTP_EXT_MS_INF_CHG_REP_ACT, decode_gtp_ms_inf_chg_rep_act}, /* 7.7.80 */ /* 0xb6 */ {GTP_EXT_DIRECT_TUNNEL_FLGS, decode_gtp_direct_tnl_flg}, /* 7.7.81 */ /* 0xb7 */ {GTP_EXT_CORRELATION_ID, decode_gtp_corrl_id}, /* 7.7.82 */ /* 0xb8 */ {GTP_EXT_BEARER_CONTROL_MODE, decode_gtp_bearer_cntrl_mod}, /* 7.7.83 */ /* 0xb9 */ {GTP_EXT_MBMS_FLOW_ID, decode_gtp_mbms_flow_id}, /* 7.7.84 */ /* 0xba */ {GTP_EXT_MBMS_IP_MCAST_DIST, decode_gtp_mbms_ip_mcast_dist}, /* 7.7.85 */ /* 0xba */ {GTP_EXT_MBMS_DIST_ACK, decode_gtp_mbms_dist_ack}, /* 7.7.86 */ /* 0xbc */ {GTP_EXT_RELIABLE_IRAT_HO_INF, decode_gtp_reliable_irat_ho_inf}, /* 7.7.87 */ /* 0xbd */ {GTP_EXT_RFSP_INDEX, decode_gtp_rfsp_index}, /* 7.7.88 */ /* 0xbe */ {GTP_EXT_FQDN, decode_gtp_fqdn}, /* 7.7.90 */ /* 0xbf */ {GTP_EXT_EVO_ALLO_RETE_P1, decode_gtp_evolved_allc_rtn_p1}, /* 7.7.91 */ /* 0xc0 */ {GTP_EXT_EVO_ALLO_RETE_P2, decode_gtp_evolved_allc_rtn_p2}, /* 7.7.92 */ /* 0xc1 */ {GTP_EXT_EXTENDED_COMMON_FLGS, decode_gtp_extended_common_flgs}, /* 7.7.93 */ /* 0xc2 */ {GTP_EXT_UCI, decode_gtp_uci}, /* 7.7.94 */ /* 0xc3 */ {GTP_EXT_CSG_INF_REP_ACT, decode_gtp_csg_inf_rep_act}, /* 7.7.95 */ /* 0xc4 */ {GTP_EXT_CSG_ID, decode_gtp_csg_id}, /* 7.7.96 */ /* 0xc5 */ {GTP_EXT_CMI, decode_gtp_cmi}, /* 7.7.97 */ /* 0xc6 */ {GTP_EXT_AMBR, decode_gtp_apn_ambr}, /* 7.7.98 */ /* 0xc7 */ {GTP_EXT_UE_NETWORK_CAP, decode_gtp_ue_network_cap}, /* 7.7.99 */ /* 0xc8 */ {GTP_EXT_UE_AMBR, decode_gtp_ue_ambr}, /* 7.7.100 */ /* 0xc9 */ {GTP_EXT_APN_AMBR_WITH_NSAPI, decode_gtp_apn_ambr_with_nsapi}, /* 7.7.101 */ /* 0xCA */ {GTP_EXT_GGSN_BACK_OFF_TIME, decode_gtp_ggsn_back_off_time}, /* 7.7.102 */ /* 0xCB */ {GTP_EXT_SIG_PRI_IND, decode_gtp_sig_pri_ind}, /* 7.7.103 */ /* 0xCC */ {GTP_EXT_SIG_PRI_IND_W_NSAPI, decode_gtp_sig_pri_ind_w_nsapi}, /* 7.7.104 */ /* 0xCD */ {GTP_EXT_HIGHER_BR_16MB_FLG, decode_gtp_higher_br_16mb_flg}, /* 7.7.105 */ /* 0xCE */ {GTP_EXT_MAX_MBR_APN_AMBR, decode_gtp_max_mbr_apn_ambr}, /* 7.7.106 */ /* 0xCF */ {GTP_EXT_ADD_MM_CTX_SRVCC, decode_gtp_add_mm_ctx_srvcc}, /* 7.7.107 */ /* 0xD0 */ {GTP_EXT_ADD_FLGS_SRVCC, decode_gtp_add_flgs_srvcc}, /* 7.7.108 */ /* 0xD1 */ {GTP_EXT_STN_SR, decode_gtp_stn_sr}, /* 7.7.109 */ /* 0xD2 */ {GTP_EXT_C_MSISDN, decode_gtp_c_msisdn}, /* 7.7.110 */ /* 0xD3 */ {GTP_EXT_EXT_RANAP_CAUSE, decode_gtp_ext_ranap_cause}, /* 7.7.111 */ /* 0xD4 */ {GTP_EXT_ENODEB_ID, decode_gtp_ext_enodeb_id }, /* 7.7.112 */ /* 0xD5 */ {GTP_EXT_SEL_MODE_W_NSAPI, decode_gtp_ext_sel_mode_w_nsapi }, /* 7.7.113 */ /* 0xD6 */ {GTP_EXT_ULI_TIMESTAMP, decode_gtp_ext_uli_timestamp }, /* 7.7.114 */ /* 0xD7 */ {GTP_EXT_LHN_ID_W_SAPI, decode_gtp_ext_lhn_id_w_sapi }, /* 7.7.115 */ /* 0xD8 */ {GTP_EXT_CN_OP_SEL_ENTITY, decode_gtp_ext_cn_op_sel_entity }, /* 7.7.116 */ /* 0xD9 */ {GTP_EXT_UE_USAGE_TYPE, decode_gtp_ue_usage_type }, /* 7.7.117 */ /* 0xDA */ {GTP_EXT_EXT_COMMON_FLGS_II, decode_gtp_extended_common_flgs_II }, /* 7.7.118 */ /* 0xDB */ {GTP_EXT_NODE_IDENTIFIER, decode_gtp_ext_node_id }, /* 7.7.119 */ /* 0xDC */ {GTP_EXT_CIOT_OPT_SUP_IND, decode_gtp_ciot_opt_sup_ind }, /* 7.7.120 */ /* 0xDD */ {GTP_EXT_SCEF_PDN_CONNECTION, decode_gtp_scef_pdn_conn }, /* 7.7.121 */ /* 0xDE */ {GTP_EXT_IOV_UPDATES_COUNTER, decode_gtp_iov_updates_counter }, /* 7.7.122 */ /* 0xDF */ {GTP_EXT_MAPPED_UE_USAGE_TYPE, decode_gtp_mapped_ue_usage_type }, /* 7.7.123 */ /* 0xE0 */ {GTP_EXT_UP_FUN_SEL_IND_FLAGS, decode_gtp_up_fun_sel_ind_flags }, /* 7.7.124 */ /* 0xf9 */ {GTP_EXT_REL_PACK, decode_gtp_rel_pack }, /* charging */ /* 0xfa */ {GTP_EXT_CAN_PACK, decode_gtp_can_pack}, /* charging */ /* 0xfb */ {GTP_EXT_CHRG_ADDR, decode_gtp_chrg_addr}, /* 0xfc */ {GTP_EXT_DATA_REQ, decode_gtp_data_req}, /* charging */ /* 0xfd */ {GTP_EXT_DATA_RESP, decode_gtp_data_resp}, /* charging */ /* 0xfe */ {GTP_EXT_NODE_ADDR, decode_gtp_node_addr}, /* 0xff */ {GTP_EXT_PRIV_EXT, decode_gtp_priv_ext}, {0, decode_gtp_unknown} }; #define NUM_GTP_IES 255 static int ett_gtp_ies[NUM_GTP_IES]; static uint8_t gtp_version; #define BCD2CHAR(d) ((d) | 0x30) static char * id_to_str(tvbuff_t *tvb, int offset) { static char str[17] = " "; uint8_t bits8to5, bits4to1; int i, j; uint8_t ad; for (i = j = 0; i < 8; i++) { ad = tvb_get_uint8(tvb, offset + i); bits8to5 = hi_nibble(ad); bits4to1 = lo_nibble(ad); if (bits4to1 <= 9) str[j++] = BCD2CHAR(bits4to1); else str[j++] = ' '; if (bits8to5 <= 9) str[j++] = BCD2CHAR(bits8to5); else str[j++] = ' '; } str[j] = '\0'; return str; } /* Next definitions and function check_field_presence_and_decoder checks if given field * in GTP packet is compliant with ETSI */ typedef int (ie_decoder) (tvbuff_t *, int, packet_info *, proto_tree *, session_args_t *); typedef struct { uint8_t code; uint8_t presence; ie_decoder *alt_decoder; } ext_header; typedef struct { uint8_t code; ext_header fields[46]; } _gtp_mess_items; /* --------------------- * GPRS messages * ---------------------*/ static const _gtp_mess_items gprs_mess_items[] = { { GTP_MSG_ECHO_REQ, { {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_ECHO_RESP, { {GTP_EXT_RECOVER, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_VER_NOT_SUPP, { {0, 0, NULL} } }, { GTP_MSG_NODE_ALIVE_REQ, { {GTP_EXT_NODE_ADDR, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_NODE_ALIVE_RESP, { {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_REDIR_REQ, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_NODE_ADDR, GTP_OPTIONAL, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_REDIR_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_CREATE_PDP_REQ, { {GTP_EXT_QOS_GPRS, GTP_MANDATORY, NULL}, {GTP_EXT_RECOVER, GTP_OPTIONAL, NULL}, {GTP_EXT_SEL_MODE, GTP_MANDATORY, NULL}, {GTP_EXT_FLOW_LABEL, GTP_MANDATORY, NULL}, {GTP_EXT_FLOW_SIG, GTP_MANDATORY, NULL}, {GTP_EXT_MSISDN, GTP_MANDATORY, NULL}, {GTP_EXT_USER_ADDR, GTP_MANDATORY, NULL}, {GTP_EXT_APN, GTP_MANDATORY, NULL}, {GTP_EXT_PROTO_CONF, GTP_OPTIONAL, NULL}, {GTP_EXT_GSN_ADDR, GTP_MANDATORY, NULL}, {GTP_EXT_GSN_ADDR, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_CREATE_PDP_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_QOS_GPRS, GTP_CONDITIONAL, NULL}, {GTP_EXT_REORDER, GTP_CONDITIONAL, NULL}, {GTP_EXT_RECOVER, GTP_OPTIONAL, NULL}, {GTP_EXT_FLOW_LABEL, GTP_CONDITIONAL, NULL}, {GTP_EXT_FLOW_SIG, GTP_CONDITIONAL, NULL}, {GTP_EXT_CHRG_ID, GTP_CONDITIONAL, NULL}, {GTP_EXT_USER_ADDR, GTP_CONDITIONAL, NULL}, {GTP_EXT_PROTO_CONF, GTP_OPTIONAL, NULL}, {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, NULL}, {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, NULL}, {GTP_EXT_CHRG_ADDR, GTP_OPTIONAL, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_UPDATE_PDP_REQ, { {GTP_EXT_QOS_GPRS, GTP_MANDATORY, NULL}, {GTP_EXT_RECOVER, GTP_OPTIONAL, NULL}, {GTP_EXT_FLOW_LABEL, GTP_MANDATORY, NULL}, {GTP_EXT_FLOW_SIG, GTP_MANDATORY, NULL}, {GTP_EXT_GSN_ADDR, GTP_MANDATORY, NULL}, {GTP_EXT_GSN_ADDR, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL}, } }, { GTP_MSG_UPDATE_PDP_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_QOS_GPRS, GTP_CONDITIONAL, NULL}, {GTP_EXT_RECOVER, GTP_OPTIONAL, NULL}, {GTP_EXT_FLOW_LABEL, GTP_CONDITIONAL, NULL}, {GTP_EXT_FLOW_SIG, GTP_CONDITIONAL, NULL}, {GTP_EXT_CHRG_ID, GTP_CONDITIONAL, NULL}, {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, NULL}, {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, NULL}, {GTP_EXT_CHRG_ADDR, GTP_OPTIONAL, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_DELETE_PDP_REQ, { {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_DELETE_PDP_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL}, } }, { GTP_MSG_INIT_PDP_CONTEXT_ACT_REQ, { {GTP_EXT_QOS_GPRS, GTP_MANDATORY, NULL}, {GTP_EXT_RECOVER, GTP_OPTIONAL, NULL}, {GTP_EXT_SEL_MODE, GTP_MANDATORY, NULL}, {GTP_EXT_FLOW_LABEL, GTP_MANDATORY, NULL}, {GTP_EXT_FLOW_SIG, GTP_MANDATORY, NULL}, {GTP_EXT_USER_ADDR, GTP_MANDATORY, NULL}, {GTP_EXT_APN, GTP_MANDATORY, NULL}, {GTP_EXT_PROTO_CONF, GTP_OPTIONAL, NULL}, {GTP_EXT_GSN_ADDR, GTP_MANDATORY, NULL}, {GTP_EXT_GSN_ADDR, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_INIT_PDP_CONTEXT_ACT_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_QOS_GPRS, GTP_CONDITIONAL, NULL}, {GTP_EXT_REORDER, GTP_CONDITIONAL, NULL}, {GTP_EXT_RECOVER, GTP_OPTIONAL, NULL}, {GTP_EXT_FLOW_LABEL, GTP_CONDITIONAL, NULL}, {GTP_EXT_FLOW_SIG, GTP_CONDITIONAL, NULL}, {GTP_EXT_CHRG_ID, GTP_CONDITIONAL, NULL}, {GTP_EXT_USER_ADDR, GTP_CONDITIONAL, NULL}, {GTP_EXT_PROTO_CONF, GTP_OPTIONAL, NULL}, {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, NULL}, {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, NULL}, {GTP_EXT_CHRG_ADDR, GTP_OPTIONAL, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_DELETE_AA_PDP_REQ, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_DELETE_AA_PDP_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_ERR_IND, { {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_PDU_NOTIFY_REQ, { {GTP_EXT_USER_ADDR, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_PDU_NOTIFY_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_PDU_NOTIFY_REJ_REQ, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_USER_ADDR, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_PDU_NOTIFY_REJ_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_SEND_ROUT_INFO_REQ, { {GTP_EXT_IMSI, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_SEND_ROUT_INFO_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_IMSI, GTP_MANDATORY, NULL}, {GTP_EXT_MAP_CAUSE, GTP_OPTIONAL, NULL}, {GTP_EXT_MS_REASON, GTP_OPTIONAL, NULL}, {GTP_EXT_GSN_ADDR, GTP_OPTIONAL, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_FAIL_REP_REQ, { {GTP_EXT_IMSI, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_FAIL_REP_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_MAP_CAUSE, GTP_OPTIONAL, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_MS_PRESENT_REQ, { {GTP_EXT_IMSI, GTP_MANDATORY, NULL}, {GTP_EXT_GSN_ADDR, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_MS_PRESENT_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_IDENT_REQ, { {GTP_EXT_RAI, GTP_MANDATORY, NULL}, {GTP_EXT_PTMSI, GTP_MANDATORY, NULL}, {GTP_EXT_PTMSI_SIG, GTP_OPTIONAL, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_IDENT_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_IMSI, GTP_CONDITIONAL, NULL}, {GTP_EXT_AUTH_TRI, GTP_OPTIONAL, NULL}, {GTP_EXT_AUTH_QUI, GTP_OPTIONAL, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_SGSN_CNTXT_REQ, { {GTP_EXT_IMSI, GTP_CONDITIONAL, NULL}, {GTP_EXT_RAI, GTP_MANDATORY, NULL}, {GTP_EXT_TLLI, GTP_MANDATORY, NULL}, {GTP_EXT_PTMSI_SIG, GTP_OPTIONAL, NULL}, {GTP_EXT_MS_VALID, GTP_OPTIONAL, NULL}, {GTP_EXT_FLOW_SIG, GTP_MANDATORY, NULL}, {0, 0, NULL} } }, { GTP_MSG_SGSN_CNTXT_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_IMSI, GTP_CONDITIONAL, NULL}, {GTP_EXT_FLOW_SIG, GTP_CONDITIONAL, NULL}, {GTP_EXT_MM_CNTXT, GTP_CONDITIONAL, NULL}, {GTP_EXT_PDP_CNTXT, GTP_CONDITIONAL, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_SGSN_CNTXT_ACK, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_FLOW_II, GTP_CONDITIONAL, NULL}, {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_DATA_TRANSF_REQ, { {GTP_EXT_TR_COMM, GTP_MANDATORY, NULL}, {GTP_EXT_DATA_REQ, GTP_CONDITIONAL, NULL}, {GTP_EXT_REL_PACK, GTP_CONDITIONAL, NULL}, {GTP_EXT_CAN_PACK, GTP_CONDITIONAL, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_DATA_TRANSF_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_DATA_RESP, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { 0, { {0, 0, NULL} } } }; /* ----------------------------- * UMTS messages * -----------------------------*/ static const _gtp_mess_items umts_mess_items[] = { /* 7.2 Path Management Messages */ { GTP_MSG_ECHO_REQ, { {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_ECHO_RESP, { {GTP_EXT_RECOVER, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_VER_NOT_SUPP, { {0, 0, NULL} } }, { GTP_MSG_SUPP_EXT_HDR, { {GTP_EXT_HDR_LIST, GTP_MANDATORY, NULL}, {0, 0, NULL} } }, /* ??? */ { GTP_MSG_NODE_ALIVE_REQ, { {GTP_EXT_NODE_ADDR, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_NODE_ALIVE_RESP, { {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_REDIR_REQ, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_NODE_ADDR, GTP_OPTIONAL, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_REDIR_REQ, { {0, 0, NULL} } }, /* 7.3 Tunnel Management Messages */ { GTP_MSG_CREATE_PDP_REQ, { {GTP_EXT_IMSI, GTP_CONDITIONAL, NULL}, /* RAI is in TS 29.060 V6.11.0 */ {GTP_EXT_RAI, GTP_OPTIONAL, NULL}, /* Routeing Area Identity (RAI) Optional 7.7.3 */ {GTP_EXT_RECOVER, GTP_OPTIONAL, NULL}, {GTP_EXT_SEL_MODE, GTP_CONDITIONAL, NULL}, {GTP_EXT_TEID, GTP_MANDATORY, NULL}, {GTP_EXT_TEID_CP, GTP_CONDITIONAL, NULL}, {GTP_EXT_NSAPI, GTP_MANDATORY, NULL}, {GTP_EXT_NSAPI, GTP_CONDITIONAL, NULL}, /* Linked NSAPI Conditional */ {GTP_EXT_CHRG_CHAR, GTP_OPTIONAL, NULL}, {GTP_EXT_TRACE_REF, GTP_OPTIONAL, NULL}, {GTP_EXT_TRACE_TYPE, GTP_OPTIONAL, NULL}, {GTP_EXT_USER_ADDR, GTP_CONDITIONAL, NULL}, {GTP_EXT_APN, GTP_CONDITIONAL, NULL}, {GTP_EXT_PROTO_CONF, GTP_CONDITIONAL, NULL}, {GTP_EXT_GSN_ADDR, GTP_MANDATORY, decode_gtp_sgsn_addr_for_control_plane}, {GTP_EXT_GSN_ADDR, GTP_MANDATORY, decode_gtp_sgsn_addr_for_user_plane}, {GTP_EXT_MSISDN, GTP_CONDITIONAL, NULL}, {GTP_EXT_QOS_UMTS, GTP_MANDATORY, NULL}, {GTP_EXT_TFT, GTP_CONDITIONAL, NULL}, {GTP_EXT_TRIGGER_ID, GTP_OPTIONAL, NULL}, {GTP_EXT_OMC_ID, GTP_OPTIONAL, NULL}, {GTP_EXT_COMMON_FLGS, GTP_OPTIONAL, NULL}, /* Common Flags Optional 7.7.48 */ {GTP_EXT_APN_RES, GTP_OPTIONAL, NULL}, {GTP_EXT_RAT_TYPE, GTP_OPTIONAL, NULL}, {GTP_EXT_USR_LOC_INF, GTP_OPTIONAL, NULL}, {GTP_EXT_MS_TIME_ZONE, GTP_OPTIONAL, NULL}, {GTP_EXT_IMEISV, GTP_CONDITIONAL, NULL}, {GTP_EXT_CAMEL_CHG_INF_CON, GTP_OPTIONAL, NULL}, {GTP_EXT_ADD_TRS_INF, GTP_OPTIONAL, NULL}, /* Updated to TS 29.060 V16.0.0 */ {GTP_EXT_CORRELATION_ID, GTP_OPTIONAL, NULL}, /* 7.7.82 */ {GTP_EXT_EVO_ALLO_RETE_P1, GTP_OPTIONAL, NULL}, /* 7.7.91 */ {GTP_EXT_EXTENDED_COMMON_FLGS, GTP_OPTIONAL, NULL}, /* 7.7.93 */ {GTP_EXT_UCI, GTP_OPTIONAL, NULL}, /* 7.7.94 */ {GTP_EXT_AMBR, GTP_OPTIONAL, NULL}, /* 7.7.98 */ {GTP_EXT_SIG_PRI_IND, GTP_OPTIONAL, NULL}, /* 7.7.103 */ {GTP_EXT_CN_OP_SEL_ENTITY, GTP_OPTIONAL, NULL}, /* 7.7.116 */ {GTP_EXT_MAPPED_UE_USAGE_TYPE, GTP_OPTIONAL, NULL}, /* 7.7.123 */ {GTP_EXT_UP_FUN_SEL_IND_FLAGS, GTP_OPTIONAL, NULL}, /* 7.7.124 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_CREATE_PDP_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_REORDER, GTP_CONDITIONAL, NULL}, {GTP_EXT_RECOVER, GTP_OPTIONAL, NULL}, {GTP_EXT_TEID, GTP_CONDITIONAL, NULL}, {GTP_EXT_TEID_CP, GTP_CONDITIONAL, NULL}, {GTP_EXT_NSAPI, GTP_CONDITIONAL, NULL}, {GTP_EXT_CHRG_ID, GTP_CONDITIONAL, NULL}, {GTP_EXT_USER_ADDR, GTP_CONDITIONAL, NULL}, {GTP_EXT_PROTO_CONF, GTP_OPTIONAL, NULL}, {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, decode_gtp_ggsn_addr_for_control_plane}, {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, decode_gtp_ggsn_addr_for_user_plane}, {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, NULL}, /* Alternative GGSN Addresses for Control Plane 7.7.32 */ {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, NULL}, /* Alternative GGSN Address for user traffic 7.7.32 */ {GTP_EXT_QOS_UMTS, GTP_CONDITIONAL, NULL}, {GTP_EXT_CHRG_ADDR, GTP_OPTIONAL, NULL}, /* TS 29.060 V6.11.0 */ {GTP_EXT_CHRG_ADDR, GTP_OPTIONAL, NULL}, /* Alternative Charging Gateway Address Optional 7.7.44 */ {GTP_EXT_COMMON_FLGS, GTP_OPTIONAL, NULL}, /* Common Flags Optional 7.7.48 */ {GTP_EXT_APN_RES, GTP_OPTIONAL, NULL}, /* APN Restriction Optional 7.7.49 */ {GTP_EXT_MS_INF_CHG_REP_ACT, GTP_OPTIONAL, NULL}, /* 7.7.80 */ {GTP_EXT_BEARER_CONTROL_MODE, GTP_OPTIONAL, NULL}, /* 7.7.83 */ {GTP_EXT_EVO_ALLO_RETE_P1, GTP_OPTIONAL, NULL}, /* 7.7.91 */ {GTP_EXT_EXTENDED_COMMON_FLGS, GTP_OPTIONAL, NULL}, /* 7.7.93 */ {GTP_EXT_CSG_INF_REP_ACT, GTP_OPTIONAL, NULL}, /* 7.7.95 */ {GTP_EXT_AMBR, GTP_OPTIONAL, NULL}, /* 7.7.98 */ {GTP_EXT_GGSN_BACK_OFF_TIME, GTP_OPTIONAL, NULL}, /* 7.7.102 */ {GTP_EXT_EXT_COMMON_FLGS_II, GTP_OPTIONAL, NULL}, /* 7.7.118 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { /* checked, SGSN -> GGSN */ GTP_MSG_UPDATE_PDP_REQ, { {GTP_EXT_IMSI, GTP_CONDITIONAL, NULL}, {GTP_EXT_RAI, GTP_OPTIONAL, NULL}, /* Routeing Area Identity (RAI) Optional 7.7.3 */ {GTP_EXT_RECOVER, GTP_OPTIONAL, NULL}, {GTP_EXT_TEID, GTP_MANDATORY, NULL}, {GTP_EXT_TEID_CP, GTP_CONDITIONAL, NULL}, {GTP_EXT_NSAPI, GTP_MANDATORY, NULL}, {GTP_EXT_TRACE_REF, GTP_OPTIONAL, NULL}, {GTP_EXT_TRACE_TYPE, GTP_OPTIONAL, NULL}, {GTP_EXT_PROTO_CONF, GTP_OPTIONAL, NULL}, /* Protocol Configuration Options Optional 7.7.31 */ {GTP_EXT_GSN_ADDR, GTP_MANDATORY, decode_gtp_sgsn_addr_for_control_plane}, /* SGSN Address for Control Plane Mandatory GSN Address 7.7.32 */ {GTP_EXT_GSN_ADDR, GTP_MANDATORY, decode_gtp_sgsn_addr_for_user_plane}, /* SGSN Address for User Traffic Mandatory GSN Address 7.7.32 */ {GTP_EXT_GSN_ADDR, GTP_OPTIONAL, NULL}, /* Alternative SGSN Address for Control Plane Conditional GSN Address 7.7.32 */ {GTP_EXT_GSN_ADDR, GTP_OPTIONAL, NULL}, /* Alternative SGSN Address for User Traffic Conditional GSN Address 7.7.32 */ {GTP_EXT_QOS_UMTS, GTP_MANDATORY, NULL}, {GTP_EXT_TFT, GTP_OPTIONAL, NULL}, {GTP_EXT_TRIGGER_ID, GTP_OPTIONAL, NULL}, {GTP_EXT_OMC_ID, GTP_OPTIONAL, NULL}, {GTP_EXT_COMMON_FLGS, GTP_OPTIONAL, NULL}, /* Common Flags Optional 7.7.48 */ {GTP_EXT_RAT_TYPE, GTP_OPTIONAL, NULL}, /* RAT Type Optional 7.7.50 */ {GTP_EXT_USR_LOC_INF, GTP_OPTIONAL, NULL}, /* User Location Information Optional 7.7.51 */ {GTP_EXT_MS_TIME_ZONE, GTP_OPTIONAL, NULL}, /* MS Time Zone Optional 7.7.52 */ {GTP_EXT_ADD_TRS_INF, GTP_OPTIONAL, NULL}, /* Additional Trace Info Optional 7.7.62 */ {GTP_EXT_DIRECT_TUNNEL_FLGS, GTP_OPTIONAL, NULL}, /* Direct Tunnel Flags 7.7.81 */ {GTP_EXT_EVO_ALLO_RETE_P1, GTP_OPTIONAL, NULL}, /* 7.7.91 */ {GTP_EXT_EXTENDED_COMMON_FLGS, GTP_OPTIONAL, NULL}, /* 7.7.93 */ {GTP_EXT_UCI, GTP_OPTIONAL, NULL}, /* 7.7.94 */ {GTP_EXT_AMBR, GTP_OPTIONAL, NULL}, /* 7.7.98 */ {GTP_EXT_SIG_PRI_IND, GTP_OPTIONAL, NULL}, /* 7.7.103 */ {GTP_EXT_UE_USAGE_TYPE, GTP_OPTIONAL, NULL}, /* 7.7.117 */ {GTP_EXT_IMEISV, GTP_OPTIONAL, NULL}, /* 7.7.53 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { /* checked, GGSN -> SGSN */ GTP_MSG_UPDATE_PDP_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_RECOVER, GTP_OPTIONAL, NULL}, {GTP_EXT_TEID, GTP_CONDITIONAL, NULL}, {GTP_EXT_TEID_CP, GTP_CONDITIONAL, NULL}, {GTP_EXT_CHRG_ID, GTP_CONDITIONAL, NULL}, {GTP_EXT_PROTO_CONF, GTP_OPTIONAL, NULL}, /* Protocol Configuration Options Optional 7.7.31 */ {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, decode_gtp_ggsn_addr_for_control_plane}, {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, decode_gtp_ggsn_addr_for_user_plane}, {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, NULL}, /* Alternative GGSN Address for Control Plane Conditional GSN Address 7.7.32 */ {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, NULL}, /* Alternative GGSN Address for User Traffic Conditional GSN Address 7.7.32 */ {GTP_EXT_QOS_UMTS, GTP_CONDITIONAL, NULL}, {GTP_EXT_CHRG_ADDR, GTP_OPTIONAL, NULL}, {GTP_EXT_CHRG_ADDR, GTP_OPTIONAL, NULL}, /* Alternative Charging Gateway Address Optional 7.7.44 */ {GTP_EXT_COMMON_FLGS, GTP_OPTIONAL, NULL}, /* Common Flags Optional 7.7.48 */ {GTP_EXT_APN_RES, GTP_OPTIONAL, NULL}, /* APN Restriction Optional 7.7.49 */ {GTP_EXT_BEARER_CONTROL_MODE, GTP_OPTIONAL, NULL}, /* 7.7.83 */ {GTP_EXT_MS_INF_CHG_REP_ACT, GTP_OPTIONAL, NULL}, /* 7.7.80 */ {GTP_EXT_EVO_ALLO_RETE_P1, GTP_OPTIONAL, NULL}, /* 7.7.91 */ {GTP_EXT_CSG_INF_REP_ACT, GTP_OPTIONAL, NULL}, /* 7.7.95 */ {GTP_EXT_AMBR, GTP_OPTIONAL, NULL}, /* 7.7.98 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_DELETE_PDP_REQ, { {GTP_EXT_CAUSE, GTP_OPTIONAL, NULL}, {GTP_EXT_TEAR_IND, GTP_CONDITIONAL, NULL}, {GTP_EXT_NSAPI, GTP_MANDATORY, NULL}, {GTP_EXT_PROTO_CONF, GTP_OPTIONAL, NULL}, /* Protocol Configuration Options Optional 7.7.31 */ {GTP_EXT_USR_LOC_INF, GTP_OPTIONAL, NULL}, /* User Location Information Optional 7.7.51 */ {GTP_EXT_MS_TIME_ZONE, GTP_OPTIONAL, NULL}, /* MS Time Zone Optional 7.7.52 */ {GTP_EXT_EXTENDED_COMMON_FLGS, GTP_OPTIONAL, NULL}, /* 7.7.93 */ {GTP_EXT_ULI_TIMESTAMP, GTP_OPTIONAL, NULL}, /* 7.7.114 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_DELETE_PDP_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_PROTO_CONF, GTP_OPTIONAL, NULL}, /* Protocol Configuration Options Optional 7.7.31 */ {GTP_EXT_USR_LOC_INF, GTP_OPTIONAL, NULL}, /* User Location Information Optional 7.7.51 */ {GTP_EXT_MS_TIME_ZONE, GTP_OPTIONAL, NULL}, /* MS Time Zone Optional 7.7.52 */ {GTP_EXT_ULI_TIMESTAMP, GTP_OPTIONAL, NULL}, /* 7.7.114 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_ERR_IND, { {GTP_EXT_TEID, GTP_MANDATORY, NULL}, {GTP_EXT_GSN_ADDR, GTP_MANDATORY, decode_gtp_ggsn_addr_for_control_plane}, /* GSN Address Mandatory 7.7.32 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_PDU_NOTIFY_REQ, { {GTP_EXT_IMSI, GTP_MANDATORY, NULL}, {GTP_EXT_TEID_CP, GTP_MANDATORY, NULL}, {GTP_EXT_USER_ADDR, GTP_MANDATORY, NULL}, {GTP_EXT_APN, GTP_MANDATORY, NULL}, {GTP_EXT_PROTO_CONF, GTP_OPTIONAL, NULL}, /* Protocol Configuration Options Optional 7.7.31 */ {GTP_EXT_GSN_ADDR, GTP_MANDATORY, decode_gtp_ggsn_addr_for_control_plane}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_PDU_NOTIFY_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_PDU_NOTIFY_REJ_REQ, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_TEID_CP, GTP_MANDATORY, NULL}, {GTP_EXT_USER_ADDR, GTP_MANDATORY, NULL}, {GTP_EXT_APN, GTP_MANDATORY, NULL}, {GTP_EXT_PROTO_CONF, GTP_OPTIONAL, NULL}, /* Protocol Configuration Options Optional 7.7.31 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_PDU_NOTIFY_REJ_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_INIT_PDP_CONTEXT_ACT_REQ, { {GTP_EXT_NSAPI, GTP_MANDATORY, NULL}, /* NSAPI Mandatory 7.7.17 */ {GTP_EXT_PROTO_CONF, GTP_OPTIONAL, NULL}, /* Protocol Configuration Options Optional 7.7.31 */ {GTP_EXT_QOS_UMTS, GTP_MANDATORY, NULL}, /* Quality of Service Profile Mandatory 7.7.34 */ {GTP_EXT_TFT, GTP_CONDITIONAL, NULL}, /* TFT Conditional 7.7.36 */ {GTP_EXT_CORRELATION_ID, GTP_MANDATORY, NULL}, /* 7.7.82 */ {GTP_EXT_EVO_ALLO_RETE_P1, GTP_OPTIONAL, NULL}, /* 7.7.91 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, } }, { GTP_MSG_INIT_PDP_CONTEXT_ACT_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_PROTO_CONF, GTP_CONDITIONAL, NULL}, /* Protocol Configuration Options Conditional 7.7.31 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, } }, /* 7.4 Location Management Messages */ { GTP_MSG_SEND_ROUT_INFO_REQ, { {GTP_EXT_IMSI, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_SEND_ROUT_INFO_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_IMSI, GTP_MANDATORY, NULL}, {GTP_EXT_MAP_CAUSE, GTP_OPTIONAL, NULL}, {GTPv1_EXT_MS_REASON, GTP_OPTIONAL, NULL}, {GTP_EXT_GSN_ADDR, GTP_OPTIONAL, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_FAIL_REP_REQ, { {GTP_EXT_IMSI, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_FAIL_REP_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_MAP_CAUSE, GTP_OPTIONAL, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_MS_PRESENT_REQ, { {GTP_EXT_IMSI, GTP_MANDATORY, NULL}, {GTP_EXT_GSN_ADDR, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_MS_PRESENT_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, /* 7.5 Mobility Management Messages */ { GTP_MSG_IDENT_REQ, { {GTP_EXT_RAI, GTP_MANDATORY, NULL}, {GTP_EXT_PTMSI, GTP_MANDATORY, NULL}, {GTP_EXT_PTMSI_SIG, GTP_CONDITIONAL, NULL}, {GTP_EXT_GSN_ADDR, GTP_OPTIONAL, decode_gtp_sgsn_addr_for_control_plane}, /* SGSN Address for Control Plane Optional 7.7.32 */ {GTP_EXT_HOP_COUNT, GTP_OPTIONAL, NULL}, /* Hop Counter Optional 7.7.63 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_IDENT_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_IMSI, GTP_CONDITIONAL, NULL}, {GTP_EXT_AUTH_TRI, GTP_CONDITIONAL, NULL}, {GTP_EXT_AUTH_QUI, GTP_CONDITIONAL, NULL}, {GTP_EXT_UE_USAGE_TYPE, GTP_OPTIONAL, NULL}, /* 7.7.117 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_SGSN_CNTXT_REQ, { {GTP_EXT_IMSI, GTP_CONDITIONAL, NULL}, {GTP_EXT_RAI, GTP_MANDATORY, NULL}, {GTP_EXT_TLLI, GTP_CONDITIONAL, NULL}, {GTP_EXT_PTMSI, GTP_CONDITIONAL, NULL}, {GTP_EXT_PTMSI_SIG, GTP_CONDITIONAL, NULL}, {GTP_EXT_MS_VALID, GTP_OPTIONAL, NULL}, {GTP_EXT_TEID_CP, GTP_MANDATORY, NULL}, {GTP_EXT_GSN_ADDR, GTP_MANDATORY, decode_gtp_sgsn_addr_for_control_plane}, {GTP_EXT_GSN_ADDR, GTP_OPTIONAL, decode_gtp_sgsn_addr_for_control_plane}, /* Alternative SGSN Address for Control Plane Optional 7.7.32 */ {GTP_EXT_SGSN_NO, GTP_OPTIONAL, NULL}, /* SGSN Number Optional 7.7.47 */ {GTP_EXT_RAT_TYPE, GTP_OPTIONAL, NULL}, /* RAT Type Optional 7.7.50 */ {GTP_EXT_HOP_COUNT, GTP_OPTIONAL, NULL}, /* Hop Counter Optional 7.7.63 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_SGSN_CNTXT_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_IMSI, GTP_CONDITIONAL, NULL}, {GTP_EXT_TEID_CP, GTP_CONDITIONAL, NULL}, {GTP_EXT_RAB_CNTXT, GTP_CONDITIONAL, NULL}, /* RAB Context Conditional 7.7.19 */ {GTP_EXT_RP_SMS, GTP_OPTIONAL, NULL}, {GTP_EXT_RP, GTP_OPTIONAL, NULL}, {GTP_EXT_PKT_FLOW_ID, GTP_OPTIONAL, NULL}, {GTP_EXT_CHRG_CHAR, GTP_OPTIONAL, NULL}, /* CharingCharacteristics Optional 7.7.23 */ {GTP_EXT_RA_PRIO_LCS, GTP_OPTIONAL, NULL}, /* Radio Priority LCS Optional 7.7.25B */ {GTP_EXT_MM_CNTXT, GTP_CONDITIONAL, NULL}, {GTP_EXT_PDP_CNTXT, GTP_CONDITIONAL, NULL}, {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, decode_gtp_sgsn_addr_for_control_plane}, {GTP_EXT_PDP_CONT_PRIO, GTP_OPTIONAL, NULL}, /* PDP Context Prioritization Optional 7.7.45 */ {GTP_EXT_MBMS_UE_CTX, GTP_OPTIONAL, NULL}, /* MBMS UE Context Optional 7.7.55 */ {GTP_EXT_RFSP_INDEX, GTP_OPTIONAL, NULL}, /* Subscribed RFSP Index 7.7.88 */ {GTP_EXT_RFSP_INDEX, GTP_OPTIONAL, NULL}, /* RFSP Index in use 7.7.88 */ {GTP_EXT_FQDN, GTP_OPTIONAL, NULL}, /* Co-located GGSN-PGW FQDN 7.7.90 */ {GTP_EXT_EVO_ALLO_RETE_P2, GTP_OPTIONAL, NULL}, /* 7.7.92 */ {GTP_EXT_EXTENDED_COMMON_FLGS, GTP_OPTIONAL, NULL}, /* 7.7.93 */ {GTP_EXT_UE_NETWORK_CAP, GTP_OPTIONAL, NULL}, /* 7.7.99 */ {GTP_EXT_UE_AMBR, GTP_OPTIONAL, NULL}, /* 7.7.100 */ {GTP_EXT_APN_AMBR_WITH_NSAPI, GTP_OPTIONAL, NULL}, /* 7.7.101 */ {GTP_EXT_SIG_PRI_IND_W_NSAPI, GTP_OPTIONAL, NULL}, /* 7.7.104 */ {GTP_EXT_HIGHER_BR_16MB_FLG, GTP_OPTIONAL, NULL}, /* 7.7.105 */ {GTP_EXT_SEL_MODE_W_NSAPI, GTP_OPTIONAL, NULL}, /* 7.7.113 */ {GTP_EXT_LHN_ID_W_SAPI, GTP_OPTIONAL, NULL }, /* 7.7.115 */ {GTP_EXT_UE_USAGE_TYPE, GTP_OPTIONAL, NULL}, /* 7.7.117 */ {GTP_EXT_EXT_COMMON_FLGS_II, GTP_OPTIONAL, NULL}, /* 7.7.118 */ {GTP_EXT_SCEF_PDN_CONNECTION, GTP_OPTIONAL, NULL }, /* 7.7.121 */ {GTP_EXT_IOV_UPDATES_COUNTER, GTP_OPTIONAL, NULL }, /* 7.7.122 */ {GTP_EXT_GSN_ADDR, GTP_OPTIONAL, NULL}, /* Alternative GGSN Address for Control Plane 7.7.32 */ {GTP_EXT_GSN_ADDR, GTP_OPTIONAL, NULL}, /* Alternative GGSN Address for User Traffic 7.7.32 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_SGSN_CNTXT_ACK, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_TEID_II, GTP_CONDITIONAL, NULL}, {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, decode_gtp_sgsn_addr_for_user_plane}, {GTP_EXT_SGSN_NO, GTP_OPTIONAL, NULL}, /* SGSN Number Optional 7.7.47 */ {GTP_EXT_NODE_IDENTIFIER, GTP_OPTIONAL, NULL}, /* 7.7.119 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_FORW_RELOC_REQ, { {GTP_EXT_IMSI, GTP_CONDITIONAL, NULL}, /* The IMSI shall not be included in the message if the MS is emergency attached and the MS is UICCless */ {GTP_EXT_TEID_CP, GTP_MANDATORY, NULL}, {GTP_EXT_RANAP_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_PKT_FLOW_ID, GTP_OPTIONAL, NULL}, {GTP_EXT_CHRG_CHAR, GTP_OPTIONAL, NULL}, /* CharingCharacteristics Optional 7.7.23 */ {GTP_EXT_MM_CNTXT, GTP_MANDATORY, NULL}, {GTP_EXT_PDP_CNTXT, GTP_CONDITIONAL, NULL}, {GTP_EXT_GSN_ADDR, GTP_MANDATORY, decode_gtp_sgsn_addr_for_control_plane}, {GTP_EXT_TARGET_ID, GTP_MANDATORY, NULL}, {GTP_EXT_UTRAN_CONT, GTP_MANDATORY, NULL}, {GTP_EXT_PDP_CONT_PRIO, GTP_OPTIONAL, NULL}, /* PDP Context Prioritization Optional 7.7.45 */ {GTP_EXT_MBMS_UE_CTX, GTP_OPTIONAL, NULL}, /* MBMS UE Context Optional 7.7.55 */ {GTP_EXT_SEL_PLMN_ID, GTP_OPTIONAL, NULL}, /* Selected PLMN ID Optional 7.7.64 */ {GTP_EXT_PS_HO_REQ_CTX, GTP_OPTIONAL, NULL}, /* PS Handover Request Context Optional 7.7.71 */ {GTP_EXT_BSS_CONT, GTP_OPTIONAL, NULL}, /* BSS Container Optional 7.7.72 */ {GTP_EXT_CELL_ID, GTP_OPTIONAL, NULL}, /* Cell Identification Optional 7.7.73 */ {GTP_EXT_BSSGP_CAUSE, GTP_OPTIONAL, NULL}, /* BSSGP Cause Optional 7.7.75 */ {GTP_EXT_PS_HANDOVER_XIP_PAR, GTP_OPTIONAL, NULL}, /* 7.7.79 */ {GTP_EXT_DIRECT_TUNNEL_FLGS, GTP_OPTIONAL, NULL}, /* Direct Tunnel Flags 7.7.81 */ {GTP_EXT_RELIABLE_IRAT_HO_INF, GTP_OPTIONAL, NULL}, /* 7.7.87 */ {GTP_EXT_RFSP_INDEX, GTP_OPTIONAL, NULL}, /* Subscribed RFSP Index 7.7.88 */ {GTP_EXT_RFSP_INDEX, GTP_OPTIONAL, NULL}, /* RFSP Index in use 7.7.88 */ {GTP_EXT_FQDN, GTP_OPTIONAL, NULL}, /* Co-located GGSN-PGW FQDN 7.7.90 */ {GTP_EXT_EVO_ALLO_RETE_P2, GTP_OPTIONAL, NULL}, /* 7.7.92 */ {GTP_EXT_EXTENDED_COMMON_FLGS, GTP_OPTIONAL, NULL}, /* 7.7.93 */ {GTP_EXT_CSG_ID, GTP_OPTIONAL, NULL}, /* 7.7.96 */ {GTP_EXT_CMI, GTP_OPTIONAL, NULL}, /* 7.7.97 */ {GTP_EXT_UE_NETWORK_CAP, GTP_OPTIONAL, NULL}, /* 7.7.99 */ {GTP_EXT_UE_AMBR, GTP_OPTIONAL, NULL}, /* 7.7.100 */ {GTP_EXT_APN_AMBR_WITH_NSAPI, GTP_OPTIONAL, NULL}, /* 7.7.101 */ {GTP_EXT_SIG_PRI_IND_W_NSAPI, GTP_OPTIONAL, NULL}, /* 7.7.104 */ {GTP_EXT_HIGHER_BR_16MB_FLG, GTP_OPTIONAL, NULL}, /* 7.7.105 */ {GTP_EXT_ADD_MM_CTX_SRVCC, GTP_OPTIONAL, NULL}, /* 7.7.107 */ {GTP_EXT_ADD_FLGS_SRVCC, GTP_OPTIONAL, NULL}, /* 7.7.108 */ {GTP_EXT_STN_SR, GTP_OPTIONAL, NULL}, /* 7.7.109 */ {GTP_EXT_C_MSISDN, GTP_OPTIONAL, NULL}, /* 7.7.110 */ {GTP_EXT_EXT_RANAP_CAUSE, GTP_OPTIONAL, NULL}, /* 7.7.111 */ {GTP_EXT_ENODEB_ID, GTP_OPTIONAL, NULL}, /* 7.7.112 */ {GTP_EXT_SEL_MODE_W_NSAPI, GTP_OPTIONAL, NULL}, /* 7.7.113 */ {GTP_EXT_UE_USAGE_TYPE, GTP_OPTIONAL, NULL}, /* 7.7.117 */ {GTP_EXT_EXT_COMMON_FLGS_II, GTP_OPTIONAL, NULL}, /* 7.7.118 */ {GTP_EXT_SCEF_PDN_CONNECTION, GTP_OPTIONAL, NULL }, /* 7.7.121 */ {GTP_EXT_GSN_ADDR, GTP_OPTIONAL, NULL}, /* Alternative GGSN Address for Control Plane 7.7.32 */ {GTP_EXT_GSN_ADDR, GTP_OPTIONAL, NULL}, /* Alternative GGSN Address for User Traffic 7.7.32 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_FORW_RELOC_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_TEID_CP, GTP_CONDITIONAL, NULL}, {GTP_EXT_TEID_II, GTP_CONDITIONAL, NULL}, /* Tunnel Endpoint Identifier Data II Optional 7.7.15 */ {GTP_EXT_RANAP_CAUSE, GTP_CONDITIONAL, NULL}, {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, NULL}, /* SGSN Address for Control plane */ {GTP_EXT_GSN_ADDR, GTP_OPTIONAL, NULL}, /* SGSN Address for User Traffic - cannot appear without above Address for Control plane */ {GTP_EXT_UTRAN_CONT, GTP_OPTIONAL, NULL}, {GTP_EXT_RAB_SETUP, GTP_CONDITIONAL, NULL}, {GTP_EXT_ADD_RAB_SETUP_INF, GTP_CONDITIONAL, NULL}, /* Additional RAB Setup Information Conditional 7.7.45A */ {GTP_EXT_SGSN_NO, GTP_OPTIONAL, NULL}, /* SGSN Number Optional 7.7.47 */ {GTP_EXT_BSS_CONT, GTP_OPTIONAL, NULL}, /* BSS Container Optional 7.7.72 */ {GTP_EXT_BSSGP_CAUSE, GTP_OPTIONAL, NULL}, /* BSSGP Cause Optional 7.7.75 */ {GTP_EXT_LIST_OF_SETUP_PFCS, GTP_OPTIONAL, NULL}, /* 7.7.78 */ {GTP_EXT_EXT_RANAP_CAUSE, GTP_OPTIONAL, NULL}, /* 7.7.111 */ {GTP_EXT_NODE_IDENTIFIER, GTP_OPTIONAL, NULL}, /* 7.7.119 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_FORW_RELOC_COMP, { {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_RELOC_CANCEL_REQ, { {GTP_EXT_IMSI, GTP_CONDITIONAL, NULL}, /* If MS is emergency attached and the MS is UICCless, the IMSI cannot be included. */ {GTP_EXT_IMEISV, GTP_CONDITIONAL, NULL}, /* 7.7.53 */ {GTP_EXT_EXTENDED_COMMON_FLGS, GTP_OPTIONAL, NULL}, /* 7.7.93 */ {GTP_EXT_EXT_RANAP_CAUSE, GTP_OPTIONAL, NULL}, /* 7.7.111 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_RELOC_CANCEL_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_FORW_RELOC_ACK, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_FORW_SRNS_CNTXT_ACK, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MSG_FORW_SRNS_CNTXT, { {GTP_EXT_RAB_CNTXT, GTP_MANDATORY, NULL}, {GTP_EXT_SRC_RNC_PDP_CTX_INF, GTP_OPTIONAL, NULL}, /* Source RNC PDCP context info Optional 7.7.61 */ {GTP_EXT_PDU_NO, GTP_OPTIONAL, NULL}, /* PDU Numbers Optional 7.7.74 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, /* 7.5.14 RAN Information Management Messages */ { GTP_MSG_RAN_INFO_RELAY, { {GTP_EXT_RAN_TR_CONT, GTP_MANDATORY, NULL}, /* RAN Transparent Container Mandatory 7.7.43 */ {GTP_EXT_RIM_RA, GTP_OPTIONAL, NULL}, /* RIM Routing Address Optional 7.7.57 */ {GTP_EXT_RIM_ROUTING_ADDR_DISC, GTP_OPTIONAL, NULL}, /* 7.7.77 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, /* 7.5.15 UE Registration Query Request */ { GTP_MSG_UE_REG_QUERY_REQ, { {GTP_EXT_IMSI, GTP_MANDATORY, NULL}, {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, /* 7.5.16 UE Registration Query Response */ { GTP_MSG_UE_REG_QUERY_RESP, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, {GTP_EXT_IMSI, GTP_MANDATORY, NULL}, {GTP_EXT_SEL_PLMN_ID, GTP_CONDITIONAL, NULL}, /* Selected PLMN ID 7.7.64 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, /* 7.5A MBMS Messages * 7.5A.1 UE Specific MBMS Messages */ { GTP_MBMS_NOTIFY_REQ, { {GTP_EXT_IMSI, GTP_MANDATORY, NULL}, /* IMSI Mandatory 7.7.2 */ {GTP_EXT_TEID_CP, GTP_MANDATORY, NULL}, /* Tunnel Endpoint Identifier Control Plane Mandatory 7.7.14 */ {GTP_EXT_NSAPI, GTP_MANDATORY, NULL}, /* NSAPI Mandatory 7.7.17 */ {GTP_EXT_USER_ADDR, GTP_MANDATORY, NULL}, /* End User Address Mandatory 7.7.27 */ {GTP_EXT_APN, GTP_MANDATORY, NULL}, /* Access Point Name Mandatory 7.7.30 */ {GTP_EXT_GSN_ADDR, GTP_MANDATORY, decode_gtp_ggsn_addr_for_control_plane}, /* GGSN Address for Control Plane Mandatory 7.7.32 */ {GTP_EXT_MBMS_PROT_CONF_OPT, GTP_OPTIONAL, NULL}, /* MBMS Protocol Configuration Options Optional 7.7.58 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, /* Private Extension Optional 7.7.46 */ {0, 0, NULL} } }, { GTP_MBMS_NOTIFY_RES, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, /* Cause Mandatory 7.7.1 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MBMS_NOTIFY_REJ_REQ, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, /* Cause Mandatory 7.7.1 */ {GTP_EXT_TEID_CP, GTP_MANDATORY, NULL}, /* Tunnel Endpoint Identifier Control Plane Mandatory 7.7.14 */ {GTP_EXT_NSAPI, GTP_MANDATORY, NULL}, /* NSAPI Mandatory 7.7.17 */ {GTP_EXT_USER_ADDR, GTP_MANDATORY, NULL}, /* End User Address Mandatory 7.7.27 */ {GTP_EXT_APN, GTP_MANDATORY, NULL}, /* Access Point Name Mandatory 7.7.30 */ {GTP_EXT_GSN_ADDR, GTP_OPTIONAL, decode_gtp_sgsn_addr_for_control_plane}, /* SGSN Address for Control Plane Optional 7.7.32 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MBMS_NOTIFY_REJ_RES, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, /* Cause Mandatory 7.7.1 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_CREATE_MBMS_CNTXT_REQ, { {GTP_EXT_IMSI, GTP_CONDITIONAL, NULL}, /* IMSI Conditional 7.7.2 */ {GTP_EXT_RAI, GTP_MANDATORY, NULL}, /* Routeing Area Identity (RAI) Mandatory 7.7.3 */ {GTP_EXT_RECOVER, GTP_OPTIONAL, NULL}, /* Recovery Optional 7.7.11 */ {GTP_EXT_SEL_MODE, GTP_CONDITIONAL, NULL}, /* Selection mode Conditional 7.7.12 */ {GTP_EXT_TEID_CP, GTP_CONDITIONAL, NULL}, /* Tunnel Endpoint Identifier Control Plane Conditional 7.7.14 */ {GTP_EXT_TRACE_REF, GTP_OPTIONAL, NULL}, /* Trace Reference Optional 7.7.24 */ {GTP_EXT_TRACE_TYPE, GTP_OPTIONAL, NULL}, /* Trace Type Optional 7.7.25 */ {GTP_EXT_USER_ADDR, GTP_MANDATORY, NULL}, /* End User Address Mandatory 7.7.27 */ {GTP_EXT_APN, GTP_MANDATORY, NULL}, /* Access Point Name Mandatory 7.7.30 */ {GTP_EXT_GSN_ADDR, GTP_MANDATORY, decode_gtp_sgsn_addr_for_control_plane}, /* SGSN Address for signalling Mandatory GSN Address 7.7.32 */ {GTP_EXT_MSISDN, GTP_CONDITIONAL, NULL}, /* MSISDN Conditional 7.7.33 */ {GTP_EXT_TRIGGER_ID, GTP_OPTIONAL, NULL}, /* Trigger Id Optional 7.7.41 */ {GTP_EXT_OMC_ID, GTP_OPTIONAL, NULL}, /* OMC Identity Optional 7.7.42 */ {GTP_EXT_RAT_TYPE, GTP_OPTIONAL, NULL}, /* RAT Type Optional 7.7.50 */ {GTP_EXT_USR_LOC_INF, GTP_OPTIONAL, NULL}, /* User Location Information Optional 7.7.51 */ {GTP_EXT_MS_TIME_ZONE, GTP_OPTIONAL, NULL}, /* MS Time Zone Optional 7.7.52 */ {GTP_EXT_IMEISV, GTP_OPTIONAL, NULL}, /* IMEI(SV) Optional 7.7.53 */ {GTP_EXT_MBMS_PROT_CONF_OPT, GTP_OPTIONAL, NULL}, /* MBMS Protocol Configuration Options Optional 7.7.58 */ {GTP_EXT_ADD_TRS_INF, GTP_OPTIONAL, NULL}, /* Additional Trace Info Optional 7.7.62 */ {GTP_EXT_ENH_NSAPI, GTP_MANDATORY, NULL}, /* Enhanced NSAPI Mandatory 7.7.67 */ {GTP_EXT_ADD_MBMS_TRS_INF, GTP_OPTIONAL, NULL}, /* Additional MBMS Trace Info Optional 7.7.68 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_CREATE_MBMS_CNTXT_RES, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, /* Cause Mandatory 7.7.1 */ {GTP_EXT_RECOVER, GTP_OPTIONAL, NULL}, /* Recovery Optional 7.7.11 */ {GTP_EXT_TEID_CP, GTP_CONDITIONAL, NULL}, /* Tunnel Endpoint Identifier Control Plane Conditional 7.7.14 */ {GTP_EXT_CHRG_ID, GTP_CONDITIONAL, NULL}, /* Charging ID Conditional 7.7.26 */ {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, NULL}, /* GGSN Address for Control Plane Conditional GSN Address 7.7.32 */ {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, NULL}, /* Alternative GGSN Address for Control Plane Conditional GSN Address 7.7.32 */ {GTP_EXT_CHRG_ADDR, GTP_OPTIONAL, NULL}, /* Charging Gateway Address Optional 7.7.44 */ {GTP_EXT_CHRG_ADDR, GTP_OPTIONAL, NULL}, /* Alternative Charging Gateway Address Optional 7.7.44 */ {GTP_EXT_MBMS_PROT_CONF_OPT, GTP_OPTIONAL, NULL}, /* MBMS Protocol Configuration Options Optional 7.7.58 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_UPD_MBMS_CNTXT_REQ, { {GTP_EXT_IMSI, GTP_CONDITIONAL, NULL}, /* IMSI Conditional 7.7.2 */ {GTP_EXT_RAI, GTP_MANDATORY, NULL}, /* Routeing Area Identity (RAI) Mandatory 7.7.3 */ {GTP_EXT_RECOVER, GTP_OPTIONAL, NULL}, /* Recovery Optional 7.7.11 */ {GTP_EXT_TEID_CP, GTP_CONDITIONAL, NULL}, /* Tunnel Endpoint Identifier Control Plane Conditional 7.7.14 */ {GTP_EXT_TRACE_REF, GTP_OPTIONAL, NULL}, /* Trace Reference Optional 7.7.24 */ {GTP_EXT_TRACE_TYPE, GTP_OPTIONAL, NULL}, /* Trace Type Optional 7.7.25 */ {GTP_EXT_GSN_ADDR, GTP_MANDATORY, decode_gtp_sgsn_addr_for_control_plane}, /* SGSN Address for Control Plane Mandatory GSN Address 7.7.32 */ {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, NULL}, /* Alternative SGSN Address for Control Plane Conditional GSN Address 7.7.32 */ {GTP_EXT_TRIGGER_ID, GTP_OPTIONAL, NULL}, /* Trigger Id Optional 7.7.41 */ {GTP_EXT_OMC_ID, GTP_OPTIONAL, NULL}, /* OMC Identity Optional 7.7.42 */ {GTP_EXT_RAT_TYPE, GTP_OPTIONAL, NULL}, /* RAT Type Optional 7.7.50 */ {GTP_EXT_USR_LOC_INF, GTP_OPTIONAL, NULL}, /* User Location Information Optional 7.7.51 */ {GTP_EXT_MS_TIME_ZONE, GTP_OPTIONAL, NULL}, /* MS Time Zone Optional 7.7.52 */ {GTP_EXT_ADD_TRS_INF, GTP_OPTIONAL, NULL}, /* Additional Trace Info Optional 7.7.62 */ {GTP_EXT_ENH_NSAPI, GTP_MANDATORY, NULL}, /* Enhanced NSAPI Mandatory 7.7.67 */ {GTP_EXT_ADD_MBMS_TRS_INF, GTP_OPTIONAL, NULL}, /* Additional MBMS Trace Info Optional 7.7.68 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_UPD_MBMS_CNTXT_RES, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, /* Cause Mandatory 7.7.1 */ {GTP_EXT_RECOVER, GTP_OPTIONAL, NULL}, /* Recovery Optional 7.7.11 */ {GTP_EXT_TEID_CP, GTP_MANDATORY, NULL}, /* Tunnel Endpoint Identifier Control Plane Conditional 7.7.14 */ {GTP_EXT_CHRG_ID, GTP_CONDITIONAL, NULL}, /* Charging ID Conditional 7.7.26 */ {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, NULL}, /* GGSN Address for Control Plane Conditional GSN Address 7.7.32 */ {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, NULL}, /* Alternative GGSN Address for Control Plane Conditional GSN Address 7.7.32 */ {GTP_EXT_CHRG_ADDR, GTP_OPTIONAL, NULL}, /* Charging Gateway Address Optional 7.7.44 */ {GTP_EXT_CHRG_ADDR, GTP_OPTIONAL, NULL}, /* Alternative Charging Gateway Address Optional 7.7.44 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, /* Private Extension Optional 7.7.46 */ {0, 0, NULL} } }, { GTP_DEL_MBMS_CNTXT_REQ, { {GTP_EXT_IMSI, GTP_CONDITIONAL, NULL}, /* IMSI Conditional 7.7.2 */ {GTP_EXT_TEID_CP, GTP_MANDATORY, NULL}, /* Tunnel Endpoint Identifier Control Plane Conditional 7.7.14 */ {GTP_EXT_USER_ADDR, GTP_CONDITIONAL, NULL}, /* End User Address Conditional 7.7.27 */ {GTP_EXT_APN, GTP_CONDITIONAL, NULL}, /* Access Point Name Conditional 7.7.30 */ {GTP_EXT_MBMS_PROT_CONF_OPT, GTP_OPTIONAL, NULL}, /* MBMS Protocol Configuration Options Optional 7.7.58 */ {GTP_EXT_ENH_NSAPI, GTP_MANDATORY, NULL}, /* Enhanced NSAPI Conditional 7.7.67 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, /* Private Extension Optional 7.7.46 */ {0, 0, NULL} } }, { GTP_DEL_MBMS_CNTXT_RES, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, /* Cause Mandatory 7.7.1 */ {GTP_EXT_MBMS_PROT_CONF_OPT, GTP_OPTIONAL, NULL}, /* MBMS Protocol Configuration Options Optional 7.7.58 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, {0, 0, NULL} } }, { GTP_MBMS_REG_REQ, { {GTP_EXT_TEID_CP, GTP_CONDITIONAL, NULL}, /* Tunnel Endpoint Identifier Control Plane Conditional 7.7.14 */ {GTP_EXT_USER_ADDR, GTP_MANDATORY, NULL}, /* End User Address Mandatory 7.7.27 */ {GTP_EXT_APN, GTP_MANDATORY, NULL}, /* Access Point Name Mandatory 7.7.30 */ {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, decode_gtp_sgsn_addr_for_control_plane}, /* SGSN Address for Control Plane GSN Address 7.7.32 */ {GTP_EXT_GSN_ADDR, GTP_OPTIONAL, NULL}, /* Alternative SGSN Address for Control Plane GSN Address 7.7.32 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, /* Private Extension Optional 7.7.46 */ {0, 0, NULL} } }, { GTP_MBMS_REG_RES, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, /* Cause Mandatory 7.7.1 */ {GTP_EXT_TEID_CP, GTP_CONDITIONAL, NULL}, /* Tunnel Endpoint Identifier Control Plane Conditional 7.7.14 */ {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, NULL}, /* GGSN Address for Control Plane Conditional GSN Address 7.7.32 */ {GTP_EXT_TMGI, GTP_CONDITIONAL, NULL}, /* Temporary Mobile Group Identity (TMGI) Conditional 7.7.56 */ {GTP_EXT_REQ_MBMS_BEARER_CAP, GTP_CONDITIONAL, NULL}, /* 7.7.76 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, /* Private Extension Optional 7.7.46 */ {0, 0, NULL} } }, { GTP_MBMS_DE_REG_REQ, { {GTP_EXT_USER_ADDR, GTP_MANDATORY, NULL}, /* End User Address Mandatory 7.7.27 */ {GTP_EXT_APN, GTP_MANDATORY, NULL}, /* Access Point Name Mandatory 7.7.30 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, /* Private Extension Optional 7.7.46 */ {0, 0, NULL} } }, { GTP_MBMS_DE_REG_RES, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, /* Cause Mandatory 7.7.1 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, /* Private Extension Optional 7.7.46 */ {0, 0, NULL} } }, { GTP_MBMS_SES_START_REQ, { {GTP_EXT_RECOVER, GTP_OPTIONAL, NULL}, /* Recovery Optional 7.7.11 */ {GTP_EXT_TEID_CP, GTP_CONDITIONAL, NULL}, /* Tunnel Endpoint Identifier Control Plane Conditional 7.7.14 */ {GTP_EXT_USER_ADDR, GTP_MANDATORY, NULL}, /* End User Address Mandatory 7.7.27 */ {GTP_EXT_APN, GTP_MANDATORY, NULL}, /* Access Point Name Mandatory 7.7.30 */ {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, NULL}, /* GGSN Address for Control Plane Conditional GSN Address 7.7.32 */ {GTP_EXT_GSN_ADDR, GTP_OPTIONAL, NULL}, /* Alternative GGSN Address for Control Plane GSN Address 7.7.32 */ {GTP_EXT_QOS_UMTS, GTP_MANDATORY, NULL}, /* Quality of Service Profile Mandatory 7.7.34 */ {GTP_EXT_COMMON_FLGS, GTP_OPTIONAL, NULL}, /* Common Flags Mandatory 7.7.48 */ {GTP_EXT_TMGI, GTP_MANDATORY, NULL}, /* Temporary Mobile Group Identity (TMGI) Mandatory 7.7.56 */ {GTP_EXT_MBMS_SA, GTP_MANDATORY, NULL}, /* MBMS Service Area Mandatory 7.7.60 */ {GTP_EXT_MBMS_SES_ID, GTP_OPTIONAL, NULL}, /* MBMS Session Identifier Optional 7.7.65 */ {GTP_EXT_MBMS_2G_3G_IND, GTP_MANDATORY, NULL}, /* MBMS 2G/3G Indicator Mandatory 7.7.66 */ {GTP_EXT_MBMS_SES_DUR, GTP_MANDATORY, NULL}, /* MBMS Session Duration Mandatory 7.7.59 */ /* V16.0.0 has it here. */ {GTP_EXT_MBMS_SES_ID_REP_NO, GTP_OPTIONAL, NULL}, /* MBMS Session Identity Repetition Number Optional 7.7.69 */ {GTP_EXT_MBMS_TIME_TO_DATA_TR, GTP_MANDATORY, NULL}, /* MBMS Time To Data Transfer Mandatory 7.7.70 */ {GTP_EXT_MBMS_FLOW_ID, GTP_OPTIONAL, NULL}, /* 7.7.84 */ {GTP_EXT_MBMS_IP_MCAST_DIST, GTP_OPTIONAL, NULL}, /* 7.7.85 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, /* Private Extension Optional 7.7.46 */ {0, 0, NULL} } }, { GTP_MBMS_SES_START_RES, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, /* Cause Mandatory 7.7.1 */ {GTP_EXT_RECOVER, GTP_OPTIONAL, NULL}, /* Recovery Optional 7.7.11 */ {GTP_EXT_TEID, GTP_CONDITIONAL, NULL}, /* Tunnel Endpoint Identifier Data I Conditional 7.7.13 */ {GTP_EXT_TEID_CP, GTP_CONDITIONAL, NULL}, /* Tunnel Endpoint Identifier Control Plane Conditional 7.7.14 */ {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, NULL}, /* SGSN Address for Control Plane Conditional GSN Address 7.7.32 */ {GTP_EXT_GSN_ADDR, GTP_CONDITIONAL, NULL}, /* SGSN Address for user traffic Conditional GSN Address 7.7.32 */ {GTP_EXT_GSN_ADDR, GTP_OPTIONAL, NULL}, /* Alternative SGSN Address for user traffic GSN Address 7.7.32 */ {GTP_EXT_MBMS_DIST_ACK, GTP_OPTIONAL, NULL}, /* 7.7.86 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, /* Private Extension Optional 7.7.46 */ {0, 0, NULL} } }, { GTP_MBMS_SES_STOP_REQ, { {GTP_EXT_USER_ADDR, GTP_MANDATORY, NULL}, /* End User Address Mandatory 7.7.27 */ {GTP_EXT_APN, GTP_MANDATORY, NULL}, /* Access Point Name Mandatory 7.7.30 */ {GTP_EXT_MBMS_FLOW_ID, GTP_OPTIONAL, NULL}, /* 7.7.84 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, /* Private Extension Optional 7.7.46 */ {0, 0, NULL} } }, { GTP_MBMS_SES_STOP_RES, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, /* Cause Mandatory 7.7.1 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, /* Private Extension Optional 7.7.46 */ {0, 0, NULL} } }, { GTP_MBMS_SES_UPD_REQ, { {GTP_EXT_TEID_CP, GTP_OPTIONAL, NULL}, /* Tunnel Endpoint Identifier Control Plane 7.7.14 */ {GTP_EXT_USER_ADDR, GTP_MANDATORY, NULL}, /* End User Address Mandatory 7.7.27 */ {GTP_EXT_APN, GTP_MANDATORY, NULL}, /* Access Point Name Mandatory 7.7.30 */ {GTP_EXT_GSN_ADDR, GTP_OPTIONAL, NULL}, /* GGSN Address for Control Plane GSN Address 7.7.32 */ {GTP_EXT_TMGI, GTP_MANDATORY, NULL}, /* Temporary Mobile Group Identity (TMGI) Mandatory 7.7.56 */ {GTP_EXT_MBMS_SES_DUR, GTP_MANDATORY, NULL}, /* MBMS Session Duration Mandatory 7.7.59 */ /* V16.0.0 has it here. */ {GTP_EXT_MBMS_SA, GTP_MANDATORY, NULL}, /* MBMS Service Area Mandatory 7.7.60 */ {GTP_EXT_MBMS_SES_ID, GTP_OPTIONAL, NULL}, /* MBMS Session Identifier Optional 7.7.65 */ {GTP_EXT_MBMS_SES_ID_REP_NO, GTP_OPTIONAL, NULL}, /* MBMS Session Identity Repetition Number Optional 7.7.69 */ {GTP_EXT_MBMS_FLOW_ID, GTP_OPTIONAL, NULL}, /* 7.7.84 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, /* Private Extension Optional 7.7.46 */ {0, 0, NULL} } }, { GTP_MBMS_SES_UPD_RES, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, /* Cause Mandatory 7.7.1 */ {GTP_EXT_TEID, GTP_OPTIONAL, NULL}, /* Tunnel Endpoint Identifier Data I 7.7.13 */ {GTP_EXT_TEID_CP, GTP_OPTIONAL, NULL}, /* Tunnel Endpoint Identifier Control Plane 7.7.14 */ {GTP_EXT_GSN_ADDR, GTP_OPTIONAL, NULL}, /* SGSN Address for Data I GSN Address 7.7.32 */ {GTP_EXT_GSN_ADDR, GTP_OPTIONAL, NULL}, /* SGSN Address for Control Plane GSN Address 7.7.32 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, /* Private Extension Optional 7.7.46 */ {0, 0, NULL} } }, { GTP_MS_INFO_CNG_NOT_REQ, { {GTP_EXT_IMSI, GTP_CONDITIONAL, NULL}, /* IMSI Conditional 7.7.2 */ {GTP_EXT_NSAPI, GTP_OPTIONAL, NULL}, /* Linked NSAPI Optional 7.7.17 */ {GTP_EXT_RAT_TYPE, GTP_MANDATORY, NULL}, /* RAT Type 7.7.50 */ {GTP_EXT_USR_LOC_INF, GTP_CONDITIONAL, NULL},/* User Location Information 7.7.51 */ {GTP_EXT_IMEISV, GTP_CONDITIONAL, NULL}, /* IMEI(SV) 7.7.53 */ {GTP_EXT_EXTENDED_COMMON_FLGS, GTP_OPTIONAL, NULL}, /* 7.7.93 */ {GTP_EXT_UCI, GTP_OPTIONAL, NULL}, /* 7.7.94 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, /* Private Extension Optional 7.7.46 */ {0, 0, NULL} } }, { GTP_MS_INFO_CNG_NOT_RES, { {GTP_EXT_CAUSE, GTP_MANDATORY, NULL}, /* Cause Mandatory 7.7.1 */ {GTP_EXT_IMSI, GTP_CONDITIONAL, NULL}, /* IMSI Conditional 7.7.2 */ {GTP_EXT_NSAPI, GTP_OPTIONAL, NULL}, /* Linked NSAPI Optional 7.7.17 */ {GTP_EXT_IMEISV, GTP_CONDITIONAL, NULL}, /* IMEI(SV) 7.7.53 */ {GTP_EXT_MS_INF_CHG_REP_ACT, GTP_OPTIONAL, NULL}, /* 7.7.80 */ {GTP_EXT_CSG_INF_REP_ACT, GTP_OPTIONAL, NULL}, /* 7.7.95 */ {GTP_EXT_PRIV_EXT, GTP_OPTIONAL, NULL}, /* Private Extension Optional 7.7.46 */ {0, 0, NULL} } }, { 0, { {0, 0, NULL} } } }; /* Data structure attached to a conversation, to keep track of request/response-pairs */ typedef struct gtp_conv_info_t { wmem_map_t *unmatched; wmem_map_t *matched; } gtp_conv_info_t; static unsigned gtp_sn_hash(const void *k) { const gtp_msg_hash_t *key = (const gtp_msg_hash_t *)k; return key->seq_nr; } static int gtp_sn_equal_matched(const void *k1, const void *k2) { const gtp_msg_hash_t *key1 = (const gtp_msg_hash_t *)k1; const gtp_msg_hash_t *key2 = (const gtp_msg_hash_t *)k2; double diff; nstime_t delta; 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; } if (pref_pair_matching_max_interval_ms) { nstime_delta(&delta, &key1->req_time, &key2->req_time); diff = fabs(nstime_to_msec(&delta)); return key1->seq_nr == key2->seq_nr && diff < pref_pair_matching_max_interval_ms; } return key1->seq_nr == key2->seq_nr; } static int gtp_sn_equal_unmatched(const void *k1, const void *k2) { const gtp_msg_hash_t *key1 = (const gtp_msg_hash_t *)k1; const gtp_msg_hash_t *key2 = (const gtp_msg_hash_t *)k2; double diff; nstime_t delta; if (pref_pair_matching_max_interval_ms) { nstime_delta(&delta, &key1->req_time, &key2->req_time); diff = fabs(nstime_to_msec(&delta)); return key1->seq_nr == key2->seq_nr && diff < pref_pair_matching_max_interval_ms; } return key1->seq_nr == key2->seq_nr; } static gtp_msg_hash_t * gtp_match_response(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, int seq_nr, unsigned msgtype, gtp_conv_info_t *gtp_info, uint8_t last_cause) { gtp_msg_hash_t gcr, *gcrp = NULL; uint32_t session; gcr.seq_nr=seq_nr; gcr.req_time = pinfo->abs_ts; switch (msgtype) { case GTP_MSG_ECHO_REQ: case GTP_MSG_CREATE_PDP_REQ: case GTP_MSG_UPDATE_PDP_REQ: case GTP_MSG_DELETE_PDP_REQ: case GTP_MSG_FORW_RELOC_REQ: case GTP_MSG_DATA_TRANSF_REQ: case GTP_MSG_SGSN_CNTXT_REQ: case GTP_MS_INFO_CNG_NOT_REQ: case GTP_MSG_IDENT_REQ: gcr.is_request=true; gcr.req_frame=pinfo->num; gcr.rep_frame=0; break; case GTP_MSG_ECHO_RESP: case GTP_MSG_CREATE_PDP_RESP: case GTP_MSG_UPDATE_PDP_RESP: case GTP_MSG_DELETE_PDP_RESP: case GTP_MSG_FORW_RELOC_RESP: case GTP_MSG_DATA_TRANSF_RESP: case GTP_MSG_SGSN_CNTXT_RESP: case GTP_MS_INFO_CNG_NOT_RES: case GTP_MSG_IDENT_RESP: gcr.is_request=false; gcr.req_frame=0; gcr.rep_frame=pinfo->num; break; default: gcr.is_request=false; gcr.req_frame=0; gcr.rep_frame=0; break; } gcrp = (gtp_msg_hash_t *)wmem_map_lookup(gtp_info->matched, &gcr); if (gcrp) { gcrp->is_request=gcr.is_request; } else { /*no match, let's try to make one*/ switch (msgtype) { case GTP_MSG_ECHO_REQ: case GTP_MSG_CREATE_PDP_REQ: case GTP_MSG_UPDATE_PDP_REQ: case GTP_MSG_DELETE_PDP_REQ: case GTP_MSG_FORW_RELOC_REQ: case GTP_MSG_DATA_TRANSF_REQ: case GTP_MSG_SGSN_CNTXT_REQ: case GTP_MS_INFO_CNG_NOT_REQ: case GTP_MSG_IDENT_REQ: gcr.seq_nr=seq_nr; gcrp=(gtp_msg_hash_t *)wmem_map_lookup(gtp_info->unmatched, &gcr); if (gcrp) { wmem_map_remove(gtp_info->unmatched, gcrp); } /* if we can't reuse the old one, grab a new chunk */ if (!gcrp) { gcrp = wmem_new(wmem_file_scope(), gtp_msg_hash_t); } gcrp->seq_nr=seq_nr; gcrp->req_frame = pinfo->num; gcrp->req_time = pinfo->abs_ts; gcrp->rep_frame = 0; gcrp->msgtype = msgtype; gcrp->is_request = true; wmem_map_insert(gtp_info->unmatched, gcrp, gcrp); return NULL; case GTP_MSG_ECHO_RESP: case GTP_MSG_CREATE_PDP_RESP: case GTP_MSG_UPDATE_PDP_RESP: case GTP_MSG_DELETE_PDP_RESP: case GTP_MSG_FORW_RELOC_RESP: case GTP_MSG_DATA_TRANSF_RESP: case GTP_MSG_SGSN_CNTXT_RESP: case GTP_MS_INFO_CNG_NOT_RES: case GTP_MSG_IDENT_RESP: gcr.seq_nr=seq_nr; gcrp=(gtp_msg_hash_t *)wmem_map_lookup(gtp_info->unmatched, &gcr); if (gcrp) { if (!gcrp->rep_frame) { wmem_map_remove(gtp_info->unmatched, gcrp); gcrp->rep_frame=pinfo->num; gcrp->is_request=false; wmem_map_insert(gtp_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_gtp_response_in, tvb, 0, 0, gcrp->rep_frame); proto_item_set_generated(it); } else { nstime_t ns; it = proto_tree_add_uint(tree, hf_gtp_response_to, tvb, 0, 0, gcrp->req_frame); proto_item_set_generated(it); nstime_delta(&ns, &pinfo->abs_ts, &gcrp->req_time); it = proto_tree_add_time(tree, hf_gtp_time, tvb, 0, 0, &ns); proto_item_set_generated(it); if (g_gtp_session) { if (!PINFO_FD_VISITED(pinfo) && gtp_version == 1) { /* GTP session */ /* If it does not have any session assigned yet */ session = GPOINTER_TO_UINT(wmem_map_lookup(session_table, GUINT_TO_POINTER(pinfo->num))); if (!session) { session = GPOINTER_TO_UINT(wmem_map_lookup(session_table, GUINT_TO_POINTER(gcrp->req_frame))); if (session) { add_gtp_session(pinfo->num, session); } } if (!is_cause_accepted(last_cause, gtp_version)){ /* If the cause is not accepted then we have to remove all the session information about its corresponding request */ remove_frame_info(gcrp->req_frame); } } } } } return gcrp; } static int check_field_presence_and_decoder(uint8_t message, uint8_t field, int *position, ie_decoder **alt_decoder) { unsigned i = 0; const _gtp_mess_items *mess_items; switch (gtp_version) { case 0: mess_items = gprs_mess_items; break; case 1: mess_items = umts_mess_items; break; default: return -2; } while (mess_items[i].code) { if (mess_items[i].code == message) { while (mess_items[i].fields[*position].code) { if (mess_items[i].fields[*position].code == field) { *alt_decoder = mess_items[i].fields[*position].alt_decoder; (*position)++; return 0; } else { if (mess_items[i].fields[*position].presence == GTP_MANDATORY) { return mess_items[i].fields[(*position)++].code; } else { (*position)++; } } } return -1; } i++; } return -2; } /* Decoders of fields in extension headers, each function returns no of bytes from field */ /* GPRS: 9.60 v7.6.0, chapter * UMTS: 29.060 v4.0, chapter * 7.7.1 Cause */ static int decode_gtp_cause(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args) { uint8_t cause; cause = tvb_get_uint8(tvb, offset + 1); if (g_gtp_session) { args->last_cause = cause; } proto_tree_add_uint(tree, hf_gtp_cause, tvb, offset, 2, cause); return 2; } /* GPRS: 9.60 v7.6.0, chapter 7.9.2 * UMTS: 29.060 v4.0, chapter 7.7.2 */ static int decode_gtp_imsi(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { /* const char *imsi_str; */ /* Octets 2 - 9 IMSI */ /* imsi_str = */ dissect_e212_imsi(tvb, pinfo, tree, offset+1, 8, false); return 9; } /* GPRS: 9.60 v7.6.0, chapter 7.9.3 * UMTS: 29.060 v4.0, chapter 7.7.3 Routeing Area Identity (RAI) */ static int decode_gtp_rai(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { proto_tree *ext_tree_rai; ext_tree_rai = proto_tree_add_subtree(tree, tvb, offset, 1, ett_gtp_ies[GTP_EXT_RAI], NULL, val_to_str_ext_const(GTP_EXT_RAI, >p_val_ext, "Unknown message")); dissect_e212_mcc_mnc(tvb, pinfo, ext_tree_rai, offset+1, E212_RAI, true); proto_tree_add_item(ext_tree_rai, hf_gtp_lac, tvb, offset + 4, 2, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_rai, hf_gtp_rai_rac, tvb, offset + 6, 1, ENC_BIG_ENDIAN); return 7; } /* GPRS: 9.60 v7.6.0, chapter 7.9.4, page 39 * UMTS: 29.060 v4.0, chapter 7.7.4 Temporary Logical Link Identity (TLLI) */ static int decode_gtp_tlli(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint32_t tlli; tlli = tvb_get_ntohl(tvb, offset + 1); proto_tree_add_uint(tree, hf_gtp_tlli, tvb, offset, 5, tlli); return 5; } /* GPRS: 9.60 v7.6.0, chapter 7.9.5, page 39 * UMTS: 29.060 v4.0, chapter 7.7.5 Packet TMSI (P-TMSI) */ static int decode_gtp_ptmsi(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { proto_item* ti; proto_tree_add_item(tree, hf_gtp_ptmsi, tvb, offset + 1, 4, ENC_BIG_ENDIAN); ti = proto_tree_add_item(tree, hf_3gpp_tmsi, tvb, offset+1, 4, ENC_BIG_ENDIAN); proto_item_set_hidden(ti); return 5; } /* * adjust - how many bytes before offset should be highlighted */ static int decode_qos_gprs(tvbuff_t * tvb, int offset, proto_tree * tree, const char * qos_str, uint8_t adjust) { uint8_t spare1, delay, reliability, peak, spare2, precedence, spare3, mean; proto_tree *ext_tree_qos; spare1 = tvb_get_uint8(tvb, offset) & GTP_EXT_QOS_SPARE1_MASK; delay = tvb_get_uint8(tvb, offset) & GTP_EXT_QOS_DELAY_MASK; reliability = tvb_get_uint8(tvb, offset) & GTP_EXT_QOS_RELIABILITY_MASK; peak = tvb_get_uint8(tvb, offset + 1) & GTP_EXT_QOS_PEAK_MASK; spare2 = tvb_get_uint8(tvb, offset + 1) & GTP_EXT_QOS_SPARE2_MASK; precedence = tvb_get_uint8(tvb, offset + 1) & GTP_EXT_QOS_PRECEDENCE_MASK; spare3 = tvb_get_uint8(tvb, offset + 2) & GTP_EXT_QOS_SPARE3_MASK; mean = tvb_get_uint8(tvb, offset + 2) & GTP_EXT_QOS_MEAN_MASK; ext_tree_qos = proto_tree_add_subtree_format(tree, tvb, offset - adjust, 3 + adjust, ett_gtp_qos, NULL, "%s: delay: %u, reliability: %u, peak: %u, precedence: %u, mean: %u", qos_str, (delay >> 3) & 0x07, reliability, (peak >> 4) & 0x0F, precedence, mean); if (adjust != 0) { proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_spare1, tvb, offset, 1, spare1); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_delay, tvb, offset, 1, delay); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_reliability, tvb, offset, 1, reliability); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_peak, tvb, offset + 1, 1, peak); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_spare2, tvb, offset + 1, 1, spare2); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_precedence, tvb, offset + 1, 1, precedence); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_spare3, tvb, offset + 2, 1, spare3); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_mean, tvb, offset + 2, 1, mean); } return 3; } /* GPRS: 9.60 v7.6.0, chapter 7.9.6, page 39 * 4.08 * 3.60 * UMTS: not present * TODO: check if length is included: ETSI 4.08 vs 9.60 */ static int decode_gtp_qos_gprs(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { return (1 + decode_qos_gprs(tvb, offset + 1, tree, "Quality of Service", 1)); } /* GPRS: 9.60 v7.6.0, chapter 7.9.7, page 39 * UMTS: 29.060 v4.0, chapter 7.7.6 Reordering Required */ static int decode_gtp_reorder(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint8_t reorder; reorder = tvb_get_uint8(tvb, offset + 1) & 0x01; proto_tree_add_boolean(tree, hf_gtp_reorder, tvb, offset, 2, reorder); return 2; } /* GPRS: 9.60 v7.6.0, chapter 7.9.8, page 40 * 4.08 v7.1.2, chapter 10.5.3.1+ * UMTS: 29.060 v4.0, chapter 7.7.7 * TODO: Add blurb support by registering items in the protocol registration */ static int decode_gtp_auth_tri(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { proto_tree *ext_tree_auth_tri; ext_tree_auth_tri = proto_tree_add_subtree(tree, tvb, offset, 29, ett_gtp_ies[GTP_EXT_AUTH_TRI], NULL, val_to_str_ext_const(GTP_EXT_AUTH_TRI, >p_val_ext, "Unknown message")); proto_tree_add_item(ext_tree_auth_tri, hf_gtp_rand, tvb, offset + 1, 16, ENC_NA); proto_tree_add_item(ext_tree_auth_tri, hf_gtp_sres, tvb, offset + 17, 4, ENC_NA); proto_tree_add_item(ext_tree_auth_tri, hf_gtp_kc, tvb, offset + 21, 8, ENC_NA); return 1 + 16 + 4 + 8; } /* GPRS: 9.60 v7.6.0, chapter 7.9.9, page 40 * 9.02 v7.7.0, page 1090 * UMTS: 29.060 v4.0, chapter 7.7.8, page 48 * 29.002 v4.2.1, chapter 17.5, page 268 */ static int decode_gtp_map_cause(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint8_t map_cause; map_cause = tvb_get_uint8(tvb, offset + 1); proto_tree_add_uint(tree, hf_gtp_map_cause, tvb, offset, 2, map_cause); return 2; } /* GPRS: 9.60 v7.6.0, chapter 7.9.10, page 41 * UMTS: 29.060 v4.0, chapter 7.7.9, page 48 */ static int decode_gtp_ptmsi_sig(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint32_t ptmsi_sig; ptmsi_sig = tvb_get_ntoh24(tvb, offset + 1); proto_tree_add_uint(tree, hf_gtp_ptmsi_sig, tvb, offset, 4, ptmsi_sig); return 4; } /* GPRS: 9.60 v7.6.0, chapter 7.9.11, page 41 * UMTS: 29.060 v4.0, chapter 7.7.10, page 49 */ static int decode_gtp_ms_valid(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint8_t ms_valid; ms_valid = tvb_get_uint8(tvb, offset + 1) & 0x01; proto_tree_add_boolean(tree, hf_gtp_ms_valid, tvb, offset, 2, ms_valid); return 2; } /* GPRS: 9.60 v7.6.0, chapter 7.9.12, page 41 * UMTS: 29.060 v4.0, chapter 7.7.11 Recovery */ static int decode_gtp_recovery(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint8_t recovery; recovery = tvb_get_uint8(tvb, offset + 1); proto_tree_add_uint(tree, hf_gtp_recovery, tvb, offset, 2, recovery); return 2; } /* GPRS: 9.60 v7.6.0, chapter 7.9.13, page 42 * UMTS: 29.060 v4.0, chapter 7.7.12 Selection Mode */ static const char * dissect_radius_selection_mode(proto_tree * tree, tvbuff_t * tvb, packet_info* pinfo _U_) { uint8_t sel_mode; /* Value in ASCII(UTF-8) */ sel_mode = tvb_get_uint8(tvb, 0) - 0x30; proto_tree_add_uint(tree, hf_gtp_sel_mode, tvb, 0, 1, sel_mode); return val_to_str_const(sel_mode, sel_mode_type, "Unknown"); } static int decode_gtp_sel_mode(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { proto_tree *ext_tree; proto_item *te; uint8_t sel_mode; sel_mode = tvb_get_uint8(tvb, offset + 1) & 0x03; ext_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_gtp_ies[GTP_EXT_SEL_MODE], &te, val_to_str_ext_const(GTP_EXT_SEL_MODE, >p_val_ext, "Unknown message")); proto_item_append_text(te, ": %s", val_to_str_const(sel_mode, sel_mode_type, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_sel_mode, tvb, offset+1, 1, ENC_BIG_ENDIAN); return 2; } /* GPRS: 9.60 v7.6.0, chapter 7.9.14, page 42 * UMTS: 29.060 v4.0, chapter 7.7.13, page 50 */ static int decode_gtp_16(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args) { uint16_t ext_flow_label; uint32_t teid_data, *teid; switch (gtp_version) { case 0: ext_flow_label = tvb_get_ntohs(tvb, offset + 1); proto_tree_add_uint(tree, hf_gtp_ext_flow_label, tvb, offset, 3, ext_flow_label); return 3; case 1: teid_data = tvb_get_ntohl(tvb, offset + 1); /* We save the teid_data so that we could assignate its corresponding session ID later */ if (g_gtp_session && !PINFO_FD_VISITED(pinfo)) { args->last_teid = teid_data; /* We save it to track the error indication */ if (!teid_exists(teid_data, args->teid_list)) { teid = wmem_new(pinfo->pool, uint32_t); *teid = teid_data; wmem_list_prepend(args->teid_list, teid); } } proto_tree_add_uint(tree, hf_gtp_teid_data, tvb, offset+1, 4, teid_data); return 5; default: proto_tree_add_expert_format(tree, pinfo, &ei_gtp_field_not_support_in_version, tvb, offset, 1, "Flow label/TEID Data I : GTP version not supported"); return 3; } } /* GPRS: 9.60 v7.6.0, chapter 7.9.15, page 42 * UMTS: 29.060 v4.0, chapter 7.7.14, page 42 */ static int decode_gtp_17(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args) { uint32_t teid_cp; uint32_t *teid; switch (gtp_version) { case 0: proto_tree_add_item(tree, hf_gtp_flow_sig, tvb, offset+1, 2, ENC_BIG_ENDIAN); return 3; case 1: proto_tree_add_item_ret_uint(tree, hf_gtp_teid_cp, tvb, offset+1 , 4, ENC_BIG_ENDIAN, &teid_cp); /* We save the teid_cp so that we could assignate its corresponding session ID later */ if (g_gtp_session && !PINFO_FD_VISITED(pinfo)) { if (!teid_exists(teid_cp, args->teid_list)) { teid = wmem_new(pinfo->pool, uint32_t); *teid = teid_cp; wmem_list_prepend(args->teid_list, teid); } } return 5; default: proto_tree_add_expert_format(tree, pinfo, &ei_gtp_field_not_support_in_version, tvb, offset, 1, "Flow label signalling/TEID control plane : GTP version not supported"); return 3; } } /* GPRS: 9.60 v7.6.0, chapter 7.9.16, page 42 * UMTS: 29.060 v4.0, chapter 7.7.15, page 51 */ static int decode_gtp_18(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t flow_ii; uint32_t teid_ii; proto_tree *ext_tree_flow_ii; switch (gtp_version) { case 0: ext_tree_flow_ii = proto_tree_add_subtree(tree, tvb, offset, 4, ett_gtp_ies[GTP_EXT_FLOW_II], NULL, val_to_str_ext_const(GTP_EXT_FLOW_II, >p_val_ext, "Unknown message")); proto_tree_add_item(ext_tree_flow_ii, hf_gtp_nsapi, tvb, offset + 1, 1, ENC_BIG_ENDIAN); flow_ii = tvb_get_ntohs(tvb, offset + 2); proto_tree_add_uint(ext_tree_flow_ii, hf_gtp_flow_ii, tvb, offset + 2, 2, flow_ii); return 4; case 1: ext_tree_flow_ii = proto_tree_add_subtree(tree, tvb, offset, 6, ett_gtp_flow_ii, NULL, val_to_str_ext_const(GTP_EXT_TEID_II, >pv1_val_ext, "Unknown message")); proto_tree_add_item(ext_tree_flow_ii, hf_gtp_nsapi, tvb, offset + 1, 1, ENC_BIG_ENDIAN); teid_ii = tvb_get_ntohl(tvb, offset + 2); proto_tree_add_uint(ext_tree_flow_ii, hf_gtp_teid_ii, tvb, offset + 2, 4, teid_ii); return 6; default: proto_tree_add_expert_format(tree, pinfo, &ei_gtp_field_not_support_in_version, tvb, offset, 1, "Flow data II/TEID Data II : GTP Version not supported"); return 4; } } /* GPRS: 9.60 v7.6.0, chapter 7.9.16A, page 43 * UMTS: 29.060 v4.0, chapter 7.7.16, page 51 * Check if all ms_reason types are included */ static int decode_gtp_19(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint8_t field19; field19 = tvb_get_uint8(tvb, offset + 1); switch (gtp_version) { case 0: proto_tree_add_uint(tree, hf_gtp_ms_reason, tvb, offset, 2, field19); break; case 1: proto_tree_add_boolean(tree, hf_gtp_tear_ind, tvb, offset, 2, field19 & 0x01); break; default: proto_tree_add_expert_format(tree, pinfo, &ei_gtp_field_not_support_in_version, tvb, offset, 1, "Information Element Type = 19 : GTP Version not supported"); break; } return 2; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.17, page 51 */ static int decode_gtp_nsapi(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint8_t nsapi; proto_tree *ext_tree; proto_item *te; ext_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_gtp_ies[GTP_EXT_NSAPI], &te, val_to_str_ext_const(GTP_EXT_NSAPI, >p_val_ext, "Unknown message")); nsapi = tvb_get_uint8(tvb, offset + 1) & 0x0F; proto_tree_add_item(ext_tree, hf_gtp_nsapi, tvb, offset + 1, 1, ENC_BIG_ENDIAN); proto_item_append_text(te, ": %u",nsapi); return 2; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.18, page 52 */ static int decode_gtp_ranap_cause(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint8_t ranap; ranap = tvb_get_uint8(tvb, offset + 1); if ((ranap > 0) && (ranap <= 64)) proto_tree_add_uint_format(tree, hf_gtp_ranap_cause, tvb, offset, 2, ranap, "%s (Radio Network Layer Cause) : %s (%u)", val_to_str_ext_const(GTP_EXT_RANAP_CAUSE, >p_val_ext, "Unknown"), val_to_str_ext_const(ranap, &ranap_cause_type_ext, "Unknown RANAP Cause"), ranap); if ((ranap > 64) && (ranap <= 80)) proto_tree_add_uint_format(tree, hf_gtp_ranap_cause, tvb, offset, 2, ranap, "%s (Transport Layer Cause) : %s (%u)", val_to_str_ext_const(GTP_EXT_RANAP_CAUSE, >p_val_ext, "Unknown"), val_to_str_ext_const(ranap, &ranap_cause_type_ext, "Unknown RANAP Cause"), ranap); if ((ranap > 80) && (ranap <= 96)) proto_tree_add_uint_format(tree, hf_gtp_ranap_cause, tvb, offset, 2, ranap, "%s (NAS Cause) : %s (%u)", val_to_str_ext_const(GTP_EXT_RANAP_CAUSE, >p_val_ext, "Unknown"), val_to_str_ext_const(ranap, &ranap_cause_type_ext, "Unknown RANAP Cause"), ranap); if ((ranap > 96) && (ranap <= 112)) proto_tree_add_uint_format(tree, hf_gtp_ranap_cause, tvb, offset, 2, ranap, "%s (Protocol Cause) : %s (%u)", val_to_str_ext_const(GTP_EXT_RANAP_CAUSE, >p_val_ext, "Unknown"), val_to_str_ext_const(ranap, &ranap_cause_type_ext, "Unknown RANAP Cause"), ranap); if ((ranap > 112) && (ranap <= 128)) proto_tree_add_uint_format(tree, hf_gtp_ranap_cause, tvb, offset, 2, ranap, "%s (Miscellaneous Cause) : %s (%u)", val_to_str_ext_const(GTP_EXT_RANAP_CAUSE, >p_val_ext, "Unknown"), val_to_str_ext_const(ranap, &ranap_cause_type_ext, "Unknown RANAP Cause"), ranap); if ((ranap > 128) /* && (ranap <= 255) */ ) proto_tree_add_uint_format(tree, hf_gtp_ranap_cause, tvb, offset, 2, ranap, "%s (Non-standard Cause) : %s (%u)", val_to_str_ext_const(GTP_EXT_RANAP_CAUSE, >p_val_ext, "Unknown"), val_to_str_ext_const(ranap, &ranap_cause_type_ext, "Unknown RANAP Cause"), ranap); return 2; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.19, page 52 */ static int decode_gtp_rab_cntxt(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { proto_tree *ext_tree_rab_cntxt; ext_tree_rab_cntxt = proto_tree_add_subtree(tree, tvb, offset, 10, ett_gtp_ies[GTP_EXT_RAB_CNTXT], NULL, val_to_str_ext_const(GTP_EXT_RAB_CNTXT, >p_val_ext, "Unknown message")); proto_tree_add_item(ext_tree_rab_cntxt, hf_gtp_nsapi, tvb, offset + 1, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_rab_cntxt, hf_gtp_rab_gtpu_dn, tvb, offset + 2, 2, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_rab_cntxt, hf_gtp_rab_gtpu_up, tvb, offset + 4, 2, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_rab_cntxt, hf_gtp_rab_pdu_dn, tvb, offset + 6, 2, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_rab_cntxt, hf_gtp_rab_pdu_up, tvb, offset + 8, 2, ENC_BIG_ENDIAN); return 10; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.20, page 53 */ static int decode_gtp_rp_sms(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint8_t rp_sms; rp_sms = tvb_get_uint8(tvb, offset + 1) & 0x07; proto_tree_add_uint(tree, hf_gtp_rp_sms, tvb, offset, 2, rp_sms); return 2; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.21, page 53 */ static int decode_gtp_rp(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { proto_tree *ext_tree_rp; proto_item *te; uint8_t nsapi, rp; nsapi = (tvb_get_uint8(tvb, offset + 1) & 0xF0) >> 4; rp = tvb_get_uint8(tvb, offset + 1) & 0x07; /* TODO: shouldn't really use int item as tree root.. */ te = proto_tree_add_uint_format(tree, hf_gtp_rp, tvb, offset, 2, rp, "Radio Priority for NSAPI(%u) : %u", nsapi, rp); ext_tree_rp = proto_item_add_subtree(te, ett_gtp_rp); proto_tree_add_item(ext_tree_rp, hf_gtp_rp_nsapi, tvb, offset + 1, 1, ENC_NA); proto_tree_add_item(ext_tree_rp, hf_gtp_rp_spare, tvb, offset + 1, 1, ENC_NA); proto_tree_add_item(ext_tree_rp, hf_gtp_rp, tvb, offset + 1, 1, ENC_NA); return 2; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.22, page 53 */ static int decode_gtp_pkt_flow_id(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { proto_tree *ext_tree_pkt_flow_id; proto_item *te; uint8_t nsapi, pkt_flow_id; nsapi = tvb_get_uint8(tvb, offset + 1) & 0x0F; pkt_flow_id = tvb_get_uint8(tvb, offset + 2); te = proto_tree_add_uint_format(tree, hf_gtp_pkt_flow_id, tvb, offset, 3, pkt_flow_id, "Packet Flow ID for NSAPI(%u) : %u", nsapi, pkt_flow_id); ext_tree_pkt_flow_id = proto_item_add_subtree(te, ett_gtp_pkt_flow_id); proto_tree_add_item(ext_tree_pkt_flow_id, hf_gtp_nsapi, tvb, offset + 1, 1, ENC_BIG_ENDIAN); proto_tree_add_uint_format(ext_tree_pkt_flow_id, hf_gtp_pkt_flow_id, tvb, offset + 2, 1, pkt_flow_id, "%s : %u", val_to_str_ext_const(GTP_EXT_PKT_FLOW_ID, >p_val_ext, "Unknown message"), pkt_flow_id); return 3; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.23, page 53 * TODO: Differenciate these uints? */ static int decode_gtp_chrg_char(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t chrg_char; proto_item *te; proto_tree *ext_tree_chrg_char; chrg_char = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_uint(tree, hf_gtp_chrg_char, tvb, offset, 3, chrg_char); /*"%s: %x", val_to_str_ext_const (GTP_EXT_CHRG_CHAR, >p_val_ext, "Unknown message"), chrg_char); */ ext_tree_chrg_char = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_CHRG_CHAR]); proto_tree_add_uint(ext_tree_chrg_char, hf_gtp_chrg_char_s, tvb, offset + 1, 2, chrg_char); proto_tree_add_uint(ext_tree_chrg_char, hf_gtp_chrg_char_n, tvb, offset + 1, 2, chrg_char); proto_tree_add_uint(ext_tree_chrg_char, hf_gtp_chrg_char_p, tvb, offset + 1, 2, chrg_char); proto_tree_add_uint(ext_tree_chrg_char, hf_gtp_chrg_char_f, tvb, offset + 1, 2, chrg_char); proto_tree_add_uint(ext_tree_chrg_char, hf_gtp_chrg_char_h, tvb, offset + 1, 2, chrg_char); proto_tree_add_uint(ext_tree_chrg_char, hf_gtp_chrg_char_r, tvb, offset + 1, 2, chrg_char); return 3; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.24, page */ static int decode_gtp_trace_ref(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t trace_ref; trace_ref = tvb_get_ntohs(tvb, offset + 1); proto_tree_add_uint(tree, hf_gtp_trace_ref, tvb, offset, 3, trace_ref); return 3; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.25, page */ static int decode_gtp_trace_type(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t trace_type; trace_type = tvb_get_ntohs(tvb, offset + 1); proto_tree_add_uint(tree, hf_gtp_trace_type, tvb, offset, 3, trace_type); return 3; } /* GPRS: 9.60 v7.6.0, chapter 7.9.16A * UMTS: 29.060 v4.0, chapter 7.7.25A, page */ static int decode_gtp_ms_reason(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint8_t reason; reason = tvb_get_uint8(tvb, offset + 1); /* Reason for Absence is defined in 3GPP TS 23.040 */ proto_tree_add_uint(tree, hf_gtp_ms_reason, tvb, offset, 2, reason); return 2; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.25B * Radio Priority LCS */ static int decode_gtp_ra_prio_lcs(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree_format(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_RA_PRIO_LCS], NULL, "%s : ", val_to_str_ext_const(GTP_EXT_RA_PRIO_LCS, >p_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; proto_tree_add_item(ext_tree, hf_gtp_ra_prio_lcs, tvb, offset, 1, ENC_BIG_ENDIAN); return 3 + length; } /* GPRS: 12.15 v7.6.0, chapter 7.3.3, page 45 * UMTS: 33.015 */ static int decode_gtp_tr_comm(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint8_t tr_command; tr_command = tvb_get_uint8(tvb, offset + 1); proto_tree_add_uint(tree, hf_gtp_tr_comm, tvb, offset, 2, tr_command); return 2; } /* GPRS: 9.60 v7.6.0, chapter 7.9.17, page 43 * UMTS: 29.060 v4.0, chapter 7.7.26, page 55 */ static int decode_gtp_chrg_id(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint32_t chrg_id; chrg_id = tvb_get_ntohl(tvb, offset + 1); proto_tree_add_uint(tree, hf_gtp_chrg_id, tvb, offset, 5, chrg_id); return 5; } /* GPRS: 9.60 v7.6.0, chapter 7.9.18, page 43 * UMTS: 29.060 v4.0, chapter 7.7.27, page 55 */ static int decode_gtp_user_addr(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; uint8_t pdp_typ, pdp_org; proto_tree *ext_tree_user; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); pdp_org = tvb_get_uint8(tvb, offset + 3) & 0x0F; pdp_typ = tvb_get_uint8(tvb, offset + 4); ext_tree_user = proto_tree_add_subtree_format(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_USER_ADDR], &te, "%s (%s/%s)", val_to_str_ext_const(GTP_EXT_USER_ADDR, >p_val_ext, "Unknown message"), val_to_str_const(pdp_org, pdp_org_type, "Unknown PDP Organization"), val_to_str_const(pdp_typ, pdp_type, "Unknown PDP Type")); proto_tree_add_item(ext_tree_user, hf_gtp_length, tvb, offset + 1, 2, ENC_BIG_ENDIAN); proto_tree_add_uint(ext_tree_user, hf_gtp_user_addr_pdp_org, tvb, offset + 3, 1, pdp_org); proto_tree_add_uint(ext_tree_user, hf_gtp_user_addr_pdp_type, tvb, offset + 4, 1, pdp_typ); if (length == 2) { if ((pdp_org == 0) && (pdp_typ == 1)) proto_item_append_text(te, " (Point to Point Protocol)"); else if (pdp_typ == 2) proto_item_append_text(te, " (Octet Stream Protocol)"); } else if (length > 2) { switch (pdp_typ) { case 0x21: proto_tree_add_item(ext_tree_user, hf_gtp_user_ipv4, tvb, offset + 5, 4, ENC_BIG_ENDIAN); proto_item_append_text(te, " : %s", tvb_ip_to_str(pinfo->pool, tvb, offset + 5)); break; case 0x57: proto_tree_add_item(ext_tree_user, hf_gtp_user_ipv6, tvb, offset + 5, 16, ENC_NA); proto_item_append_text(te, " : %s", tvb_ip6_to_str(pinfo->pool, tvb, offset + 5)); break; case 0x8d: if (length == 6) { ws_in6_addr ipv6; memset(&ipv6, 0, sizeof(ws_in6_addr)); proto_tree_add_item(ext_tree_user, hf_gtp_user_ipv4, tvb, offset + 5, 4, ENC_BIG_ENDIAN); proto_tree_add_ipv6_format_value(ext_tree_user, hf_gtp_user_ipv6, tvb, offset + 9, 0, &ipv6, "dynamic"); proto_item_append_text(te, " : %s / dynamic", tvb_ip_to_str(pinfo->pool, tvb, offset + 5)); } else if (length == 18) { proto_tree_add_ipv4_format_value(ext_tree_user, hf_gtp_user_ipv6, tvb, offset + 5, 0, 0, "dynamic"); proto_tree_add_item(ext_tree_user, hf_gtp_user_ipv6, tvb, offset + 5, 16, ENC_NA); proto_item_append_text(te, " : dynamic / %s", tvb_ip6_to_str(pinfo->pool, tvb, offset + 5)); } else if (length == 22) { proto_tree_add_item(ext_tree_user, hf_gtp_user_ipv4, tvb, offset + 5, 4, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_user, hf_gtp_user_ipv6, tvb, offset + 9, 16, ENC_NA); proto_item_append_text(te, " : %s / %s", tvb_ip_to_str(pinfo->pool, tvb, offset + 5), tvb_ip6_to_str(pinfo->pool, tvb, offset + 9)); } else { proto_tree_add_expert_format(ext_tree_user, pinfo, &ei_gtp_ext_length_mal, tvb, offset + 3, length, "Wrong length indicated. Expected 6, 18 or 22, got %u", length); } break; } } else proto_item_append_text(te, " : empty PDP Address"); return 3 + length; } static int decode_triplet(tvbuff_t * tvb, int offset, proto_tree * tree, uint16_t count) { proto_tree *ext_tree_trip; uint16_t i; for (i = 0; i < count; i++) { ext_tree_trip = proto_tree_add_subtree_format(tree, tvb, offset + i * 28, 28, ett_gtp_trip, NULL, "Triplet no%x", i); proto_tree_add_item(ext_tree_trip, hf_gtp_rand, tvb, offset + i * 28, 16, ENC_NA); proto_tree_add_item(ext_tree_trip, hf_gtp_sres, tvb, offset + i * 28 + 16, 4, ENC_NA); proto_tree_add_item(ext_tree_trip, hf_gtp_kc, tvb, offset + i * 28 + 20, 8, ENC_NA); } return count * 28; } /* adjust - how many bytes before quintuplet should be highlighted */ static int decode_quintuplet(tvbuff_t * tvb, int offset, proto_tree * tree, uint16_t count) { proto_tree *ext_tree_quint; proto_item *te_quint; uint16_t q_offset, i; uint8_t xres_len, auth_len; q_offset = 0; for (i = 0; i < count; i++) { ext_tree_quint = proto_tree_add_subtree_format(tree, tvb, offset, -1, ett_gtp_quint, &te_quint, "Quintuplet #%x", i + 1); proto_tree_add_item(ext_tree_quint, hf_gtp_rand, tvb, offset + q_offset, 16, ENC_NA); q_offset = q_offset + 16; xres_len = tvb_get_uint8(tvb, offset + q_offset); proto_tree_add_item(ext_tree_quint, hf_gtp_xres_length, tvb, offset + q_offset, 1, ENC_BIG_ENDIAN); q_offset++; proto_tree_add_item(ext_tree_quint, hf_gtp_xres, tvb, offset + q_offset, xres_len, ENC_NA); q_offset = q_offset + xres_len; proto_tree_add_item(ext_tree_quint, hf_gtp_quintuplet_ciphering_key, tvb, offset + q_offset, 16, ENC_NA); q_offset = q_offset + 16; proto_tree_add_item(ext_tree_quint, hf_gtp_quintuplet_integrity_key, tvb, offset + q_offset, 16, ENC_NA); q_offset = q_offset + 16; auth_len = tvb_get_uint8(tvb, offset + q_offset); proto_tree_add_item(ext_tree_quint, hf_gtp_authentication_length, tvb, offset + q_offset, 1, ENC_BIG_ENDIAN); q_offset++; proto_tree_add_item(ext_tree_quint, hf_gtp_auth, tvb, offset + q_offset, auth_len, ENC_NA); q_offset = q_offset + auth_len; proto_item_set_end(te_quint, tvb, offset + q_offset); } return q_offset; } /* GPRS: 9.60 v7.6.0, chapter 7.9.19 page * UMTS: 29.060 v4.0, chapter 7.7.28 page 57 * TODO: - check if for quintuplets first 2 bytes are length, according to AuthQuint * - finish displaying last 3 parameters */ static int decode_gtp_mm_cntxt(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t length, con_len; uint8_t count, sec_mode, len, iei; proto_tree *ext_tree_mm; proto_tree *tf_tree = NULL, *con_tree; ext_tree_mm = proto_tree_add_subtree(tree, tvb, offset, 1, ett_gtp_ies[GTP_EXT_MM_CNTXT], NULL, val_to_str_ext_const(GTP_EXT_MM_CNTXT, >p_val_ext, "Unknown message")); /* Octet 2 - 3 */ length = tvb_get_ntohs(tvb, offset + 1); if (length < 1) return 3; /* Octet 4 (cksn)*/ /* Octet 5 */ sec_mode = (tvb_get_uint8(tvb, offset + 4) >> 6) & 0x03; count = (tvb_get_uint8(tvb, offset + 4) >> 3) & 0x07; proto_tree_add_item(ext_tree_mm, hf_gtp_length, tvb, offset + 1, 2, ENC_BIG_ENDIAN); if (gtp_version == 0) sec_mode = 1; switch (sec_mode) { case 0: /* Used cipher value, UMTS keys and Quintuplets */ proto_tree_add_item(ext_tree_mm, hf_gtp_cksn_ksi, tvb, offset + 3, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_mm, hf_gtp_security_mode, tvb, offset + 4, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_mm, hf_gtp_no_of_vectors, tvb, offset + 4, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_mm, hf_gtp_cipher_algorithm, tvb, offset + 4, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_mm, hf_gtp_ciphering_key_ck, tvb, offset + 5, 16, ENC_NA); proto_tree_add_item(ext_tree_mm, hf_gtp_integrity_key_ik, tvb, offset + 21, 16, ENC_NA); proto_tree_add_item(ext_tree_mm, hf_gtp_quintuplets_length, tvb, offset + 37, 2, ENC_BIG_ENDIAN); offset = offset + decode_quintuplet(tvb, offset + 39, ext_tree_mm, count) + 39; break; case 1: /* GSM key and triplets */ proto_tree_add_item(ext_tree_mm, hf_gtp_cksn, tvb, offset + 3, 1, ENC_BIG_ENDIAN); if (gtp_version != 0) proto_tree_add_item(ext_tree_mm, hf_gtp_security_mode, tvb, offset + 4, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_mm, hf_gtp_no_of_vectors, tvb, offset + 4, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_mm, hf_gtp_cipher_algorithm, tvb, offset + 4, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_mm, hf_gtp_ciphering_key_kc, tvb, offset + 5, 8, ENC_NA); offset = offset + decode_triplet(tvb, offset + 13, ext_tree_mm, count) + 13; break; case 2: /* UMTS key and quintuplets */ proto_tree_add_item(ext_tree_mm, hf_gtp_ksi, tvb, offset + 3, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_mm, hf_gtp_security_mode, tvb, offset + 4, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_mm, hf_gtp_no_of_vectors, tvb, offset + 4, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_mm, hf_gtp_ciphering_key_ck, tvb, offset + 5, 16, ENC_NA); proto_tree_add_item(ext_tree_mm, hf_gtp_integrity_key_ik, tvb, offset + 21, 16, ENC_NA); proto_tree_add_item(ext_tree_mm, hf_gtp_quintuplets_length, tvb, offset + 37, 2, ENC_BIG_ENDIAN); offset = offset + decode_quintuplet(tvb, offset + 39, ext_tree_mm, count) + 39; break; case 3: /* GSM key and quintuplets */ proto_tree_add_item(ext_tree_mm, hf_gtp_cksn, tvb, offset + 3, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_mm, hf_gtp_security_mode, tvb, offset + 4, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_mm, hf_gtp_no_of_vectors, tvb, offset + 4, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_mm, hf_gtp_cipher_algorithm, tvb, offset + 4, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_mm, hf_gtp_ciphering_key_kc, tvb, offset + 5, 8, ENC_NA); proto_tree_add_item(ext_tree_mm, hf_gtp_quintuplets_length, tvb, offset + 13, 2, ENC_BIG_ENDIAN); offset = offset + decode_quintuplet(tvb, offset + 15, ext_tree_mm, count) + 15; break; default: break; } /* * 3GPP TS 24.008 10.5.5.6 ( see packet-gsm_a.c ) */ tf_tree = proto_tree_add_subtree(ext_tree_mm, tvb, offset, 2, ett_gtp_drx, NULL, "DRX Parameter"); de_gmm_drx_param(tvb, tf_tree, pinfo, offset, 2, NULL, 0); offset = offset + 2; len = tvb_get_uint8(tvb, offset); tf_tree = proto_tree_add_subtree(ext_tree_mm, tvb, offset, len + 1, ett_gtp_net_cap, NULL, "MS Network Capability"); proto_tree_add_uint(tf_tree, hf_gtp_ms_network_cap_content_len, tvb, offset, 1, len); offset++; /* * GPP TS 24.008 10.5.5.12 ( see packet-gsm_a.c ) */ if (len > 0) { de_gmm_ms_net_cap(tvb, tf_tree, pinfo, offset, len, NULL, 0); offset = offset + len; } /* 3GPP TS 29.060 version 9.4.0 Release 9 * The two octets Container Length holds the length of the Container, excluding the Container Length octets. * Container contains one or several optional information elements as described in the clause "Overview", from the clause * "General message format and information elements coding" in 3GPP TS 24.008 [5]. For the definition of the IEI see * table 47a, "IEIs for information elements used in the container". The IMEISV shall, if available, be included in the * Container. The IMEISV is included in the Mobile identity IE. If Container is not included, its Length field value shall * be set to 0. If the MS is emergency attached and the MS is UICCless or the IMSI is unauthenticated, the International * Mobile Equipment Identity (IMEI) shall be used as the MS identity. * * Table 47A: IEIs for information elements used in the container * IEI Information element * 0x23 Mobile identity * * NOTE: In 3GPP TS 24.008 [5] the IEI definition is * message dependent. The table is added to * have a unique definition in the present * document for the used IEI in the MMcontext. */ con_len = tvb_get_ntohs(tvb, offset); proto_tree_add_item(ext_tree_mm, hf_gtp_container_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; if (con_len > 0) { proto_item* ti; con_tree = proto_tree_add_subtree(ext_tree_mm, tvb, offset, con_len, ett_gtp_mm_cntxt, NULL, "Container"); iei = tvb_get_uint8(tvb,offset); ti = proto_tree_add_uint(con_tree, hf_gtp_iei, tvb, offset, 1, iei); if (iei == 0x23) { proto_item_append_text(ti, " (Mobile identity)"); offset++; len = tvb_get_uint8(tvb,offset); proto_tree_add_uint(con_tree, hf_gtp_iei_mobile_id_len, tvb, offset, 1, len); offset++; de_mid(tvb, con_tree, pinfo, offset, len, NULL, 0); } else { expert_add_info(pinfo, ti, &ei_gtp_iei); } } return 3 + length; } /* Function to extract the value of an hexadecimal octet. Only the lower * nybble will be non-zero in the output. * */ static uint8_t hex2dec(uint8_t x) { /* XXX, ws_xton() */ if ((x >= 'a') && (x <= 'f')) x = x - 'a' + 10; else if ((x >= 'A') && (x <= 'F')) x = x - 'A' + 10; else if ((x >= '0') && (x <= '9')) x = x - '0'; else x = 0; return x; } /* Wrapper function to add UTF-8 decoding for QoS attributes in * RADIUS messages. * */ static uint8_t wrapped_tvb_get_uint8(tvbuff_t * tvb, int offset, int type) { if (type == 2) return (hex2dec(tvb_get_uint8(tvb, offset)) << 4 | hex2dec(tvb_get_uint8(tvb, offset + 1))); else return tvb_get_uint8(tvb, offset); } /* WARNING : actually length is coded on 2 octets for QoS profile but on 1 octet for PDP Context! * so type means length of length :-) * * WARNING :) type does not mean length of length any more... see below for * type = 3! */ int decode_qos_umts(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, const char * qos_str, uint8_t type) { unsigned length; uint8_t al_ret_priority; uint8_t delay, reliability, peak, precedence, mean, spare1, spare2, spare3; uint8_t traf_class, del_order, del_err_sdu; uint8_t max_sdu_size, max_ul, max_dl, max_ul_ext, max_dl_ext, max_ul_ext2 = 0, max_dl_ext2 = 0; uint8_t res_ber, sdu_err_ratio; uint8_t trans_delay, traf_handl_prio; uint8_t guar_ul, guar_dl, guar_ul_ext, guar_dl_ext, guar_ul_ext2 = 0, guar_dl_ext2 = 0; uint8_t src_stat_desc, sig_ind, spare4; proto_tree *ext_tree_qos; int mss, mu, md, gu, gd; uint8_t arp, qci; uint32_t apn_ambr; uint64_t br; /* Will keep if the input is UTF-8 encoded (as in RADIUS messages). * If 1, input is *not* UTF-8 encoded (i.e. each input octet corresponds * to one byte to be dissected). * If 2, input is UTF-8 encoded (i.e. each *couple* of input octets * corresponds to one byte to be dissected) * */ uint8_t utf8_type = 1; /* Will keep the release indicator as indicated in the RADIUS message */ uint8_t rel_ind = 0; /* In RADIUS messages the QoS has a version field of two octets prepended. * As of 29.061 v.3.a.0, there is an hyphen between "Release Indicator" and * . Even if it sounds rather * inconsistent and unuseful, I will check hyphen presence here and * will signal its presence. * */ uint8_t hyphen; /* Will keep the value that will be returned * */ int retval = 0; switch (type) { case 0: /* For QoS inside GPRS-CDR messages from GGSN/P-GW */ length = tvb_reported_length(tvb); ext_tree_qos = proto_tree_add_subtree(tree, tvb, offset, length, ett_gtp_qos, NULL, qos_str); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_umts_length, tvb, offset, 1, length); /* QoS inside GPRS-CDR has no length octet, so no extra offset needed */ retval = length; break; case 1: length = tvb_get_uint8(tvb, offset); ext_tree_qos = proto_tree_add_subtree(tree, tvb, offset, length + 1, ett_gtp_qos, NULL, qos_str); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_umts_length, tvb, offset, 1, length); offset++; retval = length + 1; break; case 2: length = tvb_get_ntohs(tvb, offset + 1); ext_tree_qos = proto_tree_add_subtree(tree, tvb, offset, length + 3, ett_gtp_qos, NULL, qos_str); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_umts_length, tvb, offset + 1, 2, length); offset += 3; /* +1 because of first 0x86 byte for UMTS QoS */ retval = length + 3; break; case 3: /* For QoS inside RADIUS Client messages from GGSN/P-GW */ utf8_type = 2; /* The field in the RADIUS message is the length of the tvb we were given */ length = tvb_reported_length(tvb); ext_tree_qos = proto_tree_add_subtree(tree, tvb, offset, length, ett_gtp_qos, NULL, qos_str); rel_ind = wrapped_tvb_get_uint8(tvb, offset, 2); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_version, tvb, offset, 2, rel_ind); /* Hyphen handling */ hyphen = tvb_get_uint8(tvb, offset + 2); if (hyphen == ((uint8_t) '-')) { /* Hyphen is present, put in protocol tree */ proto_tree_add_item(ext_tree_qos, hf_gtp_hyphen_separator, tvb, offset + 2, 1, ENC_NA); offset++; /* "Get rid" of hyphen */ } /* Now, we modify offset here and in order to use type later * effectively.*/ offset++; length -= offset; length /= 2; /* Binary length of encoded data. */ /* Fake the length of the IE including the IE id and length octets * we are actually using it to determine presence of Octet n as counted * in TS 24.008 */ retval = length + 2; /* Actually, will be ignored. */ break; default: /* XXX - what should we do with the length here? */ length = 0; retval = 0; ext_tree_qos = NULL; break; } if ((type == 3) && (rel_ind >= 8) && (rel_ind < 98)) { /* Release 8 or higher P-GW QoS profile */ static int * const arp_flags[] = { &hf_gtp_qos_arp_pci, &hf_gtp_qos_arp_pl, &hf_gtp_qos_arp_pvi, NULL }; offset++; arp = wrapped_tvb_get_uint8(tvb, offset, 2); proto_tree_add_bitmask_value_with_flags(ext_tree_qos, tvb, offset, hf_gtp_qos_arp, ett_gtp_qos_arp, arp_flags, arp, BMT_NO_APPEND); offset += 2; qci = wrapped_tvb_get_uint8(tvb, offset, 2); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_qci, tvb, offset, 2, qci); offset += 2; if (qci <= 4) { /* GBR QCI */ br = ((uint64_t)wrapped_tvb_get_uint8(tvb, offset , 2) << 32) | ((uint64_t)wrapped_tvb_get_uint8(tvb, offset+2, 2) << 24) | ((uint64_t)wrapped_tvb_get_uint8(tvb, offset+4, 2) << 16) | ((uint64_t)wrapped_tvb_get_uint8(tvb, offset+6, 2) << 8) | (uint64_t)wrapped_tvb_get_uint8(tvb, offset+8, 2); proto_tree_add_uint64(ext_tree_qos, hf_gtp_qos_ul_mbr, tvb, offset, 10, br); offset += 10; br = ((uint64_t)wrapped_tvb_get_uint8(tvb, offset , 2) << 32) | ((uint64_t)wrapped_tvb_get_uint8(tvb, offset+2, 2) << 24) | ((uint64_t)wrapped_tvb_get_uint8(tvb, offset+4, 2) << 16) | ((uint64_t)wrapped_tvb_get_uint8(tvb, offset+6, 2) << 8) | (uint64_t)wrapped_tvb_get_uint8(tvb, offset+8, 2); proto_tree_add_uint64(ext_tree_qos, hf_gtp_qos_dl_mbr, tvb, offset, 10, br); offset += 10; br = ((uint64_t)wrapped_tvb_get_uint8(tvb, offset , 2) << 32) | ((uint64_t)wrapped_tvb_get_uint8(tvb, offset+2, 2) << 24) | ((uint64_t)wrapped_tvb_get_uint8(tvb, offset+4, 2) << 16) | ((uint64_t)wrapped_tvb_get_uint8(tvb, offset+6, 2) << 8) | (uint64_t)wrapped_tvb_get_uint8(tvb, offset+8, 2); proto_tree_add_uint64(ext_tree_qos, hf_gtp_qos_ul_gbr, tvb, offset, 10, br); offset += 10; br = ((uint64_t)wrapped_tvb_get_uint8(tvb, offset , 2) << 32) | ((uint64_t)wrapped_tvb_get_uint8(tvb, offset+2, 2) << 24) | ((uint64_t)wrapped_tvb_get_uint8(tvb, offset+4, 2) << 16) | ((uint64_t)wrapped_tvb_get_uint8(tvb, offset+6, 2) << 8) | (uint64_t)wrapped_tvb_get_uint8(tvb, offset+8, 2); proto_tree_add_uint64(ext_tree_qos, hf_gtp_qos_dl_gbr, tvb, offset, 10, br); } else { /* non GBR QCI */ apn_ambr = (wrapped_tvb_get_uint8(tvb, offset , 2) << 24) | (wrapped_tvb_get_uint8(tvb, offset+2, 2) << 16) | (wrapped_tvb_get_uint8(tvb, offset+4, 2) << 8) | wrapped_tvb_get_uint8(tvb, offset+6, 2); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_ul_apn_ambr, tvb, offset, 8, apn_ambr); offset += 8; apn_ambr = (wrapped_tvb_get_uint8(tvb, offset , 2) << 24) | (wrapped_tvb_get_uint8(tvb, offset+2, 2) << 16) | (wrapped_tvb_get_uint8(tvb, offset+4, 2) << 8) | wrapped_tvb_get_uint8(tvb, offset+6, 2); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_dl_apn_ambr, tvb, offset, 8, apn_ambr); } return retval; } /* In RADIUS messages there is no allocation-retention priority * so I don't need to wrap the following call to tvb_get_uint8 * */ al_ret_priority = tvb_get_uint8(tvb, offset); /* All calls are wrapped to take into account the possibility that the * input is UTF-8 encoded. If utf8_type is equal to 1, the final value * of the offset will be the same as in the previous version of this * dissector, and the wrapped function will serve as a dumb wrapper; * otherwise, if utf_8_type is 2, the offset is correctly shifted by * two bytes for needed shift, and the wrapped function will unencode * two values from the input. * */ spare1 = wrapped_tvb_get_uint8(tvb, offset + (1 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_SPARE1_MASK; delay = wrapped_tvb_get_uint8(tvb, offset + (1 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_DELAY_MASK; reliability = wrapped_tvb_get_uint8(tvb, offset + (1 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_RELIABILITY_MASK; peak = wrapped_tvb_get_uint8(tvb, offset + (2 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_PEAK_MASK; spare2 = wrapped_tvb_get_uint8(tvb, offset + (2 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_SPARE2_MASK; precedence = wrapped_tvb_get_uint8(tvb, offset + (2 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_PRECEDENCE_MASK; spare3 = wrapped_tvb_get_uint8(tvb, offset + (3 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_SPARE3_MASK; mean = wrapped_tvb_get_uint8(tvb, offset + (3 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_MEAN_MASK; /* In RADIUS messages there is no allocation-retention priority */ if (type != 3) { proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_al_ret_priority, tvb, offset, 1, al_ret_priority); } else { /* Add an octet to the binary data length to account for the * missing ARP so that the length tests below are correct. */ length += 1; } /* All additions must take care of the fact that QoS fields in RADIUS * messages are UTF-8 encoded, so we have to use the same trick as above. * */ proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_spare1, tvb, offset + (1 - 1) * utf8_type + 1, utf8_type, spare1); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_delay, tvb, offset + (1 - 1) * utf8_type + 1, utf8_type, delay); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_reliability, tvb, offset + (1 - 1) * utf8_type + 1, utf8_type, reliability); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_peak, tvb, offset + (2 - 1) * utf8_type + 1, utf8_type, peak); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_spare2, tvb, offset + (2 - 1) * utf8_type + 1, utf8_type, spare2); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_precedence, tvb, offset + (2 - 1) * utf8_type + 1, utf8_type, precedence); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_spare3, tvb, offset + (3 - 1) * utf8_type + 1, utf8_type, spare3); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_mean, tvb, offset + (3 - 1) * utf8_type + 1, utf8_type, mean); /* TS 24.008 V 7.8.0 10.5.6.5 Quality of service * The quality of service is a type 4 information element with a minimum length of 14 octets and a maximum length of 18 * octets. The QoS requested by the MS shall be encoded both in the QoS attributes specified in octets 3-5 and in the QoS * attributes specified in octets 6-14. * In the MS to network direction and in the network to MS direction the following applies: * - Octets 15-18 are optional. If octet 15 is included, then octet 16 shall also be included, and octets 17 and 18 may * be included. * - If octet 17 is included, then octet 18 shall also be included. * - A QoS IE received without octets 6-18, without octets 14-18, without octets 15-18, or without octets 17-18 shall * be accepted by the receiving entity. */ if (length > 4) { /* See above for the need of wrapping * */ /* Octet 6 */ traf_class = wrapped_tvb_get_uint8(tvb, offset + (4 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_TRAF_CLASS_MASK; del_order = wrapped_tvb_get_uint8(tvb, offset + (4 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_DEL_ORDER_MASK; del_err_sdu = wrapped_tvb_get_uint8(tvb, offset + (4 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_DEL_ERR_SDU_MASK; max_sdu_size = wrapped_tvb_get_uint8(tvb, offset + (5 - 1) * utf8_type + 1, utf8_type); max_ul = wrapped_tvb_get_uint8(tvb, offset + (6 - 1) * utf8_type + 1, utf8_type); max_dl = wrapped_tvb_get_uint8(tvb, offset + (7 - 1) * utf8_type + 1, utf8_type); res_ber = wrapped_tvb_get_uint8(tvb, offset + (8 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_RES_BER_MASK; sdu_err_ratio = wrapped_tvb_get_uint8(tvb, offset + (8 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_SDU_ERR_RATIO_MASK; trans_delay = wrapped_tvb_get_uint8(tvb, offset + (9 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_TRANS_DELAY_MASK; traf_handl_prio = wrapped_tvb_get_uint8(tvb, offset + (9 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_TRAF_HANDL_PRIORITY_MASK; guar_ul = wrapped_tvb_get_uint8(tvb, offset + (10 - 1) * utf8_type + 1, utf8_type); /* Octet 13 */ guar_dl = wrapped_tvb_get_uint8(tvb, offset + (11 - 1) * utf8_type + 1, utf8_type); spare4 = 0; sig_ind = 0; src_stat_desc = 0; max_dl_ext = 0; guar_dl_ext = 0; max_ul_ext = 0; guar_ul_ext = 0; if (length > 13 ||((type == 2) && (length == 13))) { spare4 = wrapped_tvb_get_uint8(tvb, offset + (12 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_SPARE4_MASK; sig_ind = wrapped_tvb_get_uint8(tvb, offset + (12 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_SIG_IND_MASK; src_stat_desc = wrapped_tvb_get_uint8(tvb, offset + (12 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_SRC_STAT_DESC_MASK; } if (length > 14) { max_dl_ext = wrapped_tvb_get_uint8(tvb, offset + (13 - 1) * utf8_type + 1, utf8_type); guar_dl_ext = wrapped_tvb_get_uint8(tvb, offset + (14 - 1) * utf8_type + 1, utf8_type); } if (length > 16) { max_ul_ext = wrapped_tvb_get_uint8(tvb, offset + (15 - 1) * utf8_type + 1, utf8_type); guar_ul_ext = wrapped_tvb_get_uint8(tvb, offset + (16 - 1) * utf8_type + 1, utf8_type); } if (length > 18) { max_dl_ext2 = wrapped_tvb_get_uint8(tvb, offset + (17 - 1) * utf8_type + 1, utf8_type); guar_dl_ext2 = wrapped_tvb_get_uint8(tvb, offset + (18 - 1) * utf8_type + 1, utf8_type); } if (length > 20) { max_ul_ext2 = wrapped_tvb_get_uint8(tvb, offset + (19 - 1) * utf8_type + 1, utf8_type); guar_ul_ext2 = wrapped_tvb_get_uint8(tvb, offset + (20 - 1) * utf8_type + 1, utf8_type); } /* * See above comments for the changes */ proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_traf_class, tvb, offset + (4 - 1) * utf8_type + 1, utf8_type, traf_class); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_del_order, tvb, offset + (4 - 1) * utf8_type + 1, utf8_type, del_order); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_del_err_sdu, tvb, offset + (4 - 1) * utf8_type + 1, utf8_type, del_err_sdu); if (max_sdu_size == 0 || max_sdu_size > 150) proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_max_sdu_size, tvb, offset + (5 - 1) * utf8_type + 1, utf8_type, max_sdu_size); if ((max_sdu_size > 0) && (max_sdu_size <= 150)) { mss = max_sdu_size * 10; proto_tree_add_uint_format_value(ext_tree_qos, hf_gtp_qos_max_sdu_size, tvb, offset + (5 - 1) * utf8_type + 1, utf8_type, mss, "%u octets", mss); } if (max_ul == 0 || max_ul == 255) proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_max_ul, tvb, offset + (6 - 1) * utf8_type + 1, utf8_type, max_ul); if ((max_ul > 0) && (max_ul <= 63)) proto_tree_add_uint_format_value(ext_tree_qos, hf_gtp_qos_max_ul, tvb, offset + (6 - 1) * utf8_type + 1, utf8_type, max_ul, "%u kbps", max_ul); if ((max_ul > 63) && (max_ul <= 127)) { mu = 64 + (max_ul - 64) * 8; proto_tree_add_uint_format_value(ext_tree_qos, hf_gtp_qos_max_ul, tvb, offset + (6 - 1) * utf8_type + 1, utf8_type, mu, "%u kbps", mu); } if ((max_ul > 127) && (max_ul <= 254)) { mu = 576 + (max_ul - 128) * 64; proto_tree_add_uint_format_value(ext_tree_qos, hf_gtp_qos_max_ul, tvb, offset + (6 - 1) * utf8_type + 1, utf8_type, mu, "%u kbps", mu); } if (max_dl == 0 || max_dl == 255) proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_max_dl, tvb, offset + (7 - 1) * utf8_type + 1, utf8_type, max_dl); if ((max_dl > 0) && (max_dl <= 63)) proto_tree_add_uint_format_value(ext_tree_qos, hf_gtp_qos_max_dl, tvb, offset + (7 - 1) * utf8_type + 1, utf8_type, max_dl, "%u kbps", max_dl); if ((max_dl > 63) && (max_dl <= 127)) { md = 64 + (max_dl - 64) * 8; proto_tree_add_uint_format_value(ext_tree_qos, hf_gtp_qos_max_dl, tvb, offset + (7 - 1) * utf8_type + 1, utf8_type, md, "%u kbps", md); } if ((max_dl > 127) && (max_dl <= 254)) { md = 576 + (max_dl - 128) * 64; proto_tree_add_uint_format_value(ext_tree_qos, hf_gtp_qos_max_dl, tvb, offset + (7 - 1) * utf8_type + 1, utf8_type, md, "%u kbps", md); } proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_res_ber, tvb, offset + (8 - 1) * utf8_type + 1, utf8_type, res_ber); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_sdu_err_ratio, tvb, offset + (8 - 1) * utf8_type + 1, utf8_type, sdu_err_ratio); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_trans_delay, tvb, offset + (9 - 1) * utf8_type + 1, utf8_type, trans_delay); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_traf_handl_prio, tvb, offset + (9 - 1) * utf8_type + 1, utf8_type, traf_handl_prio); if (guar_ul == 0 || guar_ul == 255) proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_guar_ul, tvb, offset + (10 - 1) * utf8_type + 1, utf8_type, guar_ul); if ((guar_ul > 0) && (guar_ul <= 63)) proto_tree_add_uint_format_value(ext_tree_qos, hf_gtp_qos_guar_ul, tvb, offset + (10 - 1) * utf8_type + 1, utf8_type, guar_ul, "%u kbps", guar_ul); if ((guar_ul > 63) && (guar_ul <= 127)) { gu = 64 + (guar_ul - 64) * 8; proto_tree_add_uint_format_value(ext_tree_qos, hf_gtp_qos_guar_ul, tvb, offset + (10 - 1) * utf8_type + 1, utf8_type, gu, "%u kbps", gu); } if ((guar_ul > 127) && (guar_ul <= 254)) { gu = 576 + (guar_ul - 128) * 64; proto_tree_add_uint_format_value(ext_tree_qos, hf_gtp_qos_guar_ul, tvb, offset + (10 - 1) * utf8_type + 1, utf8_type, gu, "%u kbps", gu); } /* Octet 13 */ if (guar_dl == 0 || guar_dl == 255) proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_guar_dl, tvb, offset + (11 - 1) * utf8_type + 1, utf8_type, guar_dl); if ((guar_dl > 0) && (guar_dl <= 63)) proto_tree_add_uint_format_value(ext_tree_qos, hf_gtp_qos_guar_dl, tvb, offset + (11 - 1) * utf8_type + 1, utf8_type, guar_dl, "%u kbps", guar_dl); if ((guar_dl > 63) && (guar_dl <= 127)) { gd = 64 + (guar_dl - 64) * 8; proto_tree_add_uint_format_value(ext_tree_qos, hf_gtp_qos_guar_dl, tvb, offset + (11 - 1) * utf8_type + 1, utf8_type, gd, "%u kbps", gd); } if ((guar_dl > 127) && (guar_dl <= 254)) { gd = 576 + (guar_dl - 128) * 64; proto_tree_add_uint_format_value(ext_tree_qos, hf_gtp_qos_guar_dl, tvb, offset + (11 - 1) * utf8_type + 1, utf8_type, gd, "%u kbps", gd); } if(length > 13 ||((type == 2) && (length == 13))) { proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_spare4, tvb, offset + (12 - 1) * utf8_type + 1, utf8_type, spare4); proto_tree_add_boolean(ext_tree_qos, hf_gtp_qos_sig_ind, tvb, offset + (12 - 1) * utf8_type + 1, utf8_type, sig_ind); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_src_stat_desc, tvb, offset + (12 - 1) * utf8_type + 1, utf8_type, src_stat_desc); } if(length > 14) { /* Octet 15 */ if(max_dl_ext == 0) proto_tree_add_expert_format(ext_tree_qos, pinfo, &ei_gtp_max_bit_rate_value, tvb, offset + (13 - 1) * utf8_type + 1, utf8_type, "Ext Maximum bit rate for downlink: Use the value in octet 9"); if ((max_dl_ext > 0) && (max_dl_ext <= 0x4a)) { md = 8600 + max_dl_ext * 100; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_dl, tvb, offset + (13 - 1) * utf8_type + 1, utf8_type, md, "Ext Maximum bit rate for downlink: %u kbps", md); } if ((max_dl_ext > 0x4a) && (max_dl_ext <= 0xba)) { md = 16 + (max_dl_ext-0x4a); proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_dl, tvb, offset + (13 - 1) * utf8_type + 1, utf8_type, md, "Ext Maximum bit rate for downlink: %u Mbps", md); } if ((max_dl_ext > 0xba) && (max_dl_ext <= 0xfa)) { md = 128 + (max_dl_ext-0xba)*2; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_dl, tvb, offset + (13 - 1) * utf8_type + 1, utf8_type, md, "Ext Maximum bit rate for downlink: %u Mbps", md); } /* Octet 16 */ if(guar_dl_ext == 0) proto_tree_add_expert_format(ext_tree_qos, pinfo, &ei_gtp_guaranteed_bit_rate_value, tvb, offset + (14 - 1) * utf8_type + 1, utf8_type, "Ext Guaranteed bit rate for downlink: Use the value in octet 13"); if ((guar_dl_ext > 0) && (guar_dl_ext <= 0x4a)) { gd = 8600 + guar_dl_ext * 100; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_dl, tvb, offset + (14 - 1) * utf8_type + 1, utf8_type, gd, "Ext Guaranteed bit rate for downlink: %u kbps", gd); } if ((guar_dl_ext > 0x4a) && (guar_dl_ext <= 0xba)) { gd = 16 + (guar_dl_ext-0x4a); proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_dl, tvb, offset + (14 - 1) * utf8_type + 1, utf8_type, gd, "Ext Guaranteed bit rate for downlink: %u Mbps", gd); } if ((guar_dl_ext > 0xba) && (guar_dl_ext <= 0xfa)) { gd = 128 + (guar_dl_ext-0xba)*2; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_dl, tvb, offset + (14 - 1) * utf8_type + 1, utf8_type, gd, "Ext Guaranteed bit rate for downlink: %u Mbps", gd); } } if(length > 16) { /* Octet 17 * This field is an extension of the Maximum bit rate for uplink in octet 8. The coding is identical to that of the Maximum bit * rate for downlink (extended). */ if (max_ul_ext == 0) proto_tree_add_expert_format(ext_tree_qos, pinfo, &ei_gtp_max_bit_rate_value, tvb, offset + (15 - 1) * utf8_type + 1, utf8_type, "Ext Maximum bit rate for uplink: Use the value indicated in octet 8"); if ((max_ul_ext > 0) && (max_ul_ext <= 0x4a)) { md = 8600 + max_ul_ext * 100; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_ul, tvb, offset + (15 - 1) * utf8_type + 1, utf8_type, md, "Ext Maximum bit rate for uplink: %u kbps", md); } if ((max_ul_ext > 0x4a) && (max_ul_ext <= 0xba)) { md = 16 + (max_ul_ext-0x4a); proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_ul, tvb, offset + (15 - 1) * utf8_type + 1, utf8_type, md, "Ext Maximum bit rate for uplink: %u Mbps", md); } if ((max_ul_ext > 0xba) && (max_ul_ext <= 0xfa)) { md = 128 + (max_ul_ext-0xba)*2; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_ul, tvb, offset + (15 - 1) * utf8_type + 1, utf8_type, md, "Ext Maximum bit rate for uplink: %u Mbps", md); } /* Octet 18 */ if (guar_ul_ext == 0) proto_tree_add_expert_format(ext_tree_qos, pinfo, &ei_gtp_guaranteed_bit_rate_value, tvb, offset + (16 - 1) * utf8_type + 1, utf8_type, "Ext Guaranteed bit rate for uplink: Use the value indicated in octet 12"); if ((guar_ul_ext > 0) && (guar_ul_ext <= 0x4a)) { gd = 8600 + guar_ul_ext * 100; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_ul, tvb, offset + (16 - 1) * utf8_type + 1, utf8_type, gd, "Ext Guaranteed bit rate for uplink: %u kbps", gd); } if ((guar_ul_ext > 0x4a) && (guar_ul_ext <= 0xba)) { gd = 16 + (guar_ul_ext-0x4a); proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_ul, tvb, offset + (16 - 1) * utf8_type + 1, utf8_type, gd, "Ext Guaranteed bit rate for uplink: %u Mbps", gd); } if ((guar_ul_ext > 0xba) && (guar_ul_ext <= 0xfa)) { gd = 128 + (guar_ul_ext-0xba)*2; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_ul, tvb, offset + (16 - 1) * utf8_type + 1, utf8_type, gd, "Ext Guaranteed bit rate for uplink: %u Mbps", gd); } } if(length > 18) { /* Octet 19 Maximum bit rate for downlink (extended-2) * This field is an extension of the Maximum bit rate for uplink in octet 8. The coding is identical to that of the Maximum bit * rate for downlink (extended). */ if (max_dl_ext2 == 0) proto_tree_add_expert_format(ext_tree_qos, pinfo, &ei_gtp_max_bit_rate_value, tvb, offset + (17 - 1) * utf8_type + 1, utf8_type, "Ext2 Maximum bit rate for downlink: Use the value in octet 9 and octet 15."); if ((max_dl_ext2 > 0) && (max_dl_ext2 <= 0x3d)) { md = 256 + max_dl_ext2 * 4; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_ul, tvb, offset + (15 - 1) * utf8_type + 1, utf8_type, md, "Ext2 Maximum bit rate for downlink: %u Mbps", md); } if ((max_dl_ext2 > 0x3d) && (max_dl_ext2 <= 0xa1)) { md = 500 + (max_dl_ext2-0x3d) * 10; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_ul, tvb, offset + (15 - 1) * utf8_type + 1, utf8_type, md, "Ext2 Maximum bit rate for downlink: %u Mbps", md); } if ((max_dl_ext2 > 0xa1) && (max_dl_ext2 <= 0xf6)) { md = 1500 + (max_dl_ext2-0xa1)*10; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_ul, tvb, offset + (15 - 1) * utf8_type + 1, utf8_type, md, "Ext2 Maximum bit rate for downlink: %u Mbps", md); } /* Octet 20 Guaranteed bit rate for downlink (extended-2) */ if (guar_dl_ext2 == 0) proto_tree_add_expert_format(ext_tree_qos, pinfo, &ei_gtp_max_bit_rate_value, tvb, offset + (16 - 1) * utf8_type + 1, utf8_type, "Ext2 Guaranteed bit rate for downlink: Use the value in octet 13 and octet 16."); if ((guar_dl_ext2 > 0) && (guar_dl_ext2 <= 0x3d)) { gd = 256 + guar_dl_ext2 * 4; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_ul, tvb, offset + (16 - 1) * utf8_type + 1, utf8_type, gd, "Ext2 Guaranteed bit rate for downlink: %u Mbps", gd); } if ((guar_dl_ext2 > 0x3d) && (guar_dl_ext2 <= 0xa1)) { gd = 500 + (guar_dl_ext2-0x3d) * 10; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_ul, tvb, offset + (16 - 1) * utf8_type + 1, utf8_type, gd, "Ext2 Guaranteed bit rate for downlink: %u Mbps", gd); } if ((guar_dl_ext2 > 0xba) && (guar_dl_ext2 <= 0xfa)) { gd = 1500 + (guar_dl_ext2-0xa1) * 10; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_ul, tvb, offset + (16 - 1) * utf8_type + 1, utf8_type, gd, "Ext2 Guaranteed bit rate for downlink: %u Mbps", gd); } } if(length > 20) { /* Maximum bit rate for uplink (extended-2), octet 21 * This field is an extension of the Maximum bit rate for uplink in octet 8. The coding is identical to that of the Maximum bit * rate for downlink (extended). */ if (max_ul_ext2 == 0) proto_tree_add_expert_format(ext_tree_qos, pinfo, &ei_gtp_max_bit_rate_value, tvb, offset + (17 - 1) * utf8_type + 1, utf8_type, "Ext2 Maximum bit rate for uplink: Use the value in octet 8 and octet 17."); if ((max_ul_ext2 > 0) && (max_ul_ext2 <= 0x3d)) { md = 256 + max_ul_ext2 * 4; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_ul, tvb, offset + (15 - 1) * utf8_type + 1, utf8_type, md, "Ext2 Maximum bit rate for uplink: %u Mbps", md); } if ((max_ul_ext2 > 0x3d) && (max_ul_ext2 <= 0xa1)) { md = 500 + (max_ul_ext2-0x3d) * 10; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_ul, tvb, offset + (15 - 1) * utf8_type + 1, utf8_type, md, "Ext2 Maximum bit rate for uplink: %u Mbps", md); } if ((max_ul_ext2 > 0xa1) && (max_ul_ext2 <= 0xf6)) { md = 1500 + (max_ul_ext2-0xa1)*10; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_ul, tvb, offset + (15 - 1) * utf8_type + 1, utf8_type, md, "Ext2 Maximum bit rate for uplink: %u Mbps", md); } /* Guaranteed bit rate for uplink (extended-2), octet 22 */ if (guar_ul_ext2 == 0) proto_tree_add_expert_format(ext_tree_qos, pinfo, &ei_gtp_max_bit_rate_value, tvb, offset + (16 - 1) * utf8_type + 1, utf8_type, "Ext2 Guaranteed bit rate for uplink: Use the value in octet 13 and octet 16."); if ((guar_ul_ext2 > 0) && (guar_ul_ext2 <= 0x3d)) { gd = 256 + guar_ul_ext2 * 4; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_ul, tvb, offset + (16 - 1) * utf8_type + 1, utf8_type, gd, "Ext2 Guaranteed bit rate for uplink: %u Mbps", gd); } if ((guar_ul_ext2 > 0x3d) && (guar_ul_ext2 <= 0xa1)) { gd = 500 + (guar_ul_ext2-0x3d) * 10; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_ul, tvb, offset + (16 - 1) * utf8_type + 1, utf8_type, gd, "Ext2 Guaranteed bit rate for uplink: %u Mbps", gd); } if ((guar_ul_ext2 > 0xba) && (guar_ul_ext2 <= 0xfa)) { gd = 1500 + (guar_ul_ext2-0xa1) * 10; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_ul, tvb, offset + (16 - 1) * utf8_type + 1, utf8_type, gd, "Ext2 Guaranteed bit rate for uplink: %u Mbps", gd); } } } return retval; } /* Diameter 3GPP AVP Code: 5 3GPP-GPRS Negotiated QoS profile */ static int dissect_diameter_3gpp_qosprofile(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) { decode_qos_umts(tvb, 0, pinfo, tree, "UMTS GTP QoS Profile", 3); return tvb_reported_length(tvb); } static const char * dissect_radius_qos_umts(proto_tree * tree, tvbuff_t * tvb, packet_info* pinfo) { decode_qos_umts(tvb, 0, pinfo, tree, "UMTS GTP QoS Profile", 3); return tvb_get_string_enc(pinfo->pool, tvb, 0, tvb_reported_length(tvb), ENC_UTF_8|ENC_NA); } static void decode_apn(packet_info *pinfo, tvbuff_t * tvb, int offset, uint16_t length, proto_tree * tree, proto_item *item) { const uint8_t *apn = NULL; /* * This is "a domain name represented as a sequence of labels, where * each label consists of a length octet followed by that number of * octets.", DNS-style. * * XXX - does it involve compression? */ /* Highlight bytes including the first length byte */ proto_tree_add_item_ret_string(tree, hf_gtp_apn, tvb, offset, length, ENC_APN_STR, pinfo->pool, &apn); if(item){ proto_item_append_text(item, ": %s", apn); } } static void decode_fqdn(tvbuff_t * tvb, int offset, uint16_t length, proto_tree * tree, session_args_t * args _U_) { int name_len; /* "The FQDN field encoding shall be identical to the encoding of a FQDN * within a DNS message of clause 3.1 of IETF RFC 1035 [45] but excluding * the trailing zero byte" * * XXX: is compression possible? */ if (length > 0) { name_len = tvb_get_uint8(tvb, offset); /* "NOTE 1: The FQDN field in the IE is not encoded as a dotted string" * but if the first byte is large (in the letter range or higher), * assume that it is so encoded incorrectly. */ if (name_len < 0x40) { proto_tree_add_item(tree, hf_gtp_fqdn, tvb, offset, length, ENC_APN_STR); } else proto_tree_add_item(tree, hf_gtp_fqdn, tvb, offset, length, ENC_ASCII); } } /* * GPRS: 9.60 v7.6.0, chapter 7.9.20 * UMTS: 29.060 v4.0, chapter 7.7.29 PDP Context * TODO: unify addr functions */ static int decode_gtp_pdp_cntxt(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint8_t ggsn_addr_len, apn_len, trans_id, ea; uint8_t pdp_type_num, pdp_addr_len; uint16_t length; proto_tree *ext_tree_pdp; length = tvb_get_ntohs(tvb, offset + 1); ext_tree_pdp = proto_tree_add_subtree(tree, tvb, offset, length + 3, ett_gtp_ies[GTP_EXT_PDP_CNTXT], NULL, val_to_str_ext_const(GTP_EXT_PDP_CNTXT, >p_val_ext, "Unknown message")); ea = (tvb_get_uint8(tvb, offset + 3) >> 7) & 0x01; proto_tree_add_item(ext_tree_pdp, hf_gtp_extended_end_user_address, tvb, offset + 3, 1, ENC_NA); proto_tree_add_item(ext_tree_pdp, hf_gtp_vplmn_address_allowed, tvb, offset + 3, 1, ENC_NA); proto_tree_add_item(ext_tree_pdp, hf_gtp_activity_status_indicator, tvb, offset + 3, 1, ENC_NA); proto_tree_add_item(ext_tree_pdp, hf_gtp_reordering_required, tvb, offset + 3, 1, ENC_NA); proto_tree_add_item(ext_tree_pdp, hf_gtp_nsapi, tvb, offset + 3, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_pdp, hf_gtp_pdp_cntxt_sapi, tvb, offset + 4, 1, ENC_BIG_ENDIAN); switch (gtp_version) { case 0: decode_qos_gprs(tvb, offset + 5, ext_tree_pdp, "QoS subscribed", 0); decode_qos_gprs(tvb, offset + 8, ext_tree_pdp, "QoS requested", 0); decode_qos_gprs(tvb, offset + 11, ext_tree_pdp, "QoS negotiated", 0); offset = offset + 14; break; case 1: offset = offset + 5; offset = offset + decode_qos_umts(tvb, offset, pinfo, ext_tree_pdp, "QoS subscribed", 1); offset = offset + decode_qos_umts(tvb, offset, pinfo, ext_tree_pdp, "QoS requested", 1); offset = offset + decode_qos_umts(tvb, offset, pinfo, ext_tree_pdp, "QoS negotiated", 1); break; default: break; } proto_tree_add_item(ext_tree_pdp, hf_gtp_sequence_number_down, tvb, offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_pdp, hf_gtp_sequence_number_up, tvb, offset + 2, 2, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_pdp, hf_gtp_send_n_pdu_number, tvb, offset + 4, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_pdp, hf_gtp_receive_n_pdu_number, tvb, offset + 5, 1, ENC_BIG_ENDIAN); switch (gtp_version) { case 0: proto_tree_add_item(ext_tree_pdp, hf_gtp_uplink_flow_label_signalling, tvb, offset + 6, 2, ENC_BIG_ENDIAN); offset = offset + 8; break; case 1: proto_tree_add_item(ext_tree_pdp, hf_gtp_uplink_teid_cp, tvb, offset + 6, 4, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_pdp, hf_gtp_uplink_teid_data, tvb, offset + 10, 4, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_pdp, hf_gtp_pdp_context_identifier, tvb, offset + 14, 1, ENC_BIG_ENDIAN); offset = offset + 15; break; default: break; } pdp_type_num = tvb_get_uint8(tvb, offset + 1); pdp_addr_len = tvb_get_uint8(tvb, offset + 2); proto_tree_add_item(ext_tree_pdp, hf_gtp_pdp_organization, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_pdp, hf_gtp_pdp_type, tvb, offset + 1, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_pdp, hf_gtp_pdp_address_length, tvb, offset + 2, 1, ENC_BIG_ENDIAN); if (pdp_addr_len > 0) { switch (pdp_type_num) { case 0x21: proto_tree_add_item(ext_tree_pdp, hf_gtp_pdp_address_ipv4, tvb, offset + 3, 4, ENC_BIG_ENDIAN); break; case 0x57: proto_tree_add_item(ext_tree_pdp, hf_gtp_pdp_address_ipv6, tvb, offset + 3, 16, ENC_NA); break; default: break; } } offset = offset + 3 + pdp_addr_len; ggsn_addr_len = tvb_get_uint8(tvb, offset); proto_tree_add_item(ext_tree_pdp, hf_gtp_ggsn_address_length, tvb, offset, 1, ENC_BIG_ENDIAN); switch (ggsn_addr_len) { case 4: proto_tree_add_item(ext_tree_pdp, hf_gtp_ggsn_address_for_control_plane_ipv4, tvb, offset + 1, 4, ENC_BIG_ENDIAN); break; case 16: proto_tree_add_item(ext_tree_pdp, hf_gtp_ggsn_address_for_control_plane_ipv6, tvb, offset + 1, 16, ENC_NA); break; default: break; } offset = offset + 1 + ggsn_addr_len; if (gtp_version == 1) { ggsn_addr_len = tvb_get_uint8(tvb, offset); proto_tree_add_item(ext_tree_pdp, hf_gtp_ggsn_address_length, tvb, offset, 1, ENC_BIG_ENDIAN); switch (ggsn_addr_len) { case 4: proto_tree_add_item(ext_tree_pdp, hf_gtp_ggsn_address_for_user_traffic_ipv4, tvb, offset + 1, 4, ENC_BIG_ENDIAN); break; case 16: proto_tree_add_item(ext_tree_pdp, hf_gtp_ggsn_address_for_user_traffic_ipv6, tvb, offset + 1, 16, ENC_NA); break; default: break; } offset = offset + 1 + ggsn_addr_len; } apn_len = tvb_get_uint8(tvb, offset); proto_tree_add_item(ext_tree_pdp, hf_gtp_apn_length, tvb, offset, 1, ENC_BIG_ENDIAN); decode_apn(pinfo, tvb, offset + 1, apn_len, ext_tree_pdp, NULL); offset = offset + 1 + apn_len; /* * The Transaction Identifier is the 4 or 12 bit Transaction Identifier used in the 3GPP TS 24.008 [5] Session Management * messages which control this PDP Context. If the length of the Transaction Identifier is 4 bit, the second octet shall be * set to all zeros. The encoding is defined in 3GPP TS 24.007 [3]. The latest Transaction Identifier sent from SGSN to * MS is stored in the PDP context IE. * NOTE: Bit 5-8 of the first octet in the encoding defined in 3GPP TS 24.007 [3] is mapped into bit 1-4 of the first * octet in this field. */ trans_id = tvb_get_uint8(tvb, offset); proto_tree_add_uint(ext_tree_pdp, hf_gtp_transaction_identifier, tvb, offset, 2, trans_id); offset += 2; if (ea) { pdp_type_num = tvb_get_uint8(tvb, offset); pdp_addr_len = tvb_get_uint8(tvb, offset + 1); proto_tree_add_item(ext_tree_pdp, hf_gtp_pdp_type, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_pdp, hf_gtp_pdp_address_length, tvb, offset + 1, 1, ENC_BIG_ENDIAN); if (pdp_addr_len > 0) { switch (pdp_type_num) { case 0x21: proto_tree_add_item(ext_tree_pdp, hf_gtp_pdp_address_ipv4, tvb, offset + 2, 4, ENC_NA); break; case 0x57: proto_tree_add_item(ext_tree_pdp, hf_gtp_pdp_address_ipv6, tvb, offset + 2, 16, ENC_NA); break; default: break; } } } return 3 + length; } /* GPRS: 9.60, v7.6.0, chapter 7.9.21 * UMTS: 29.060, v4.0, chapter 7.7.30 */ static int decode_gtp_apn(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree_apn; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); ext_tree_apn = proto_tree_add_subtree(tree, tvb, offset, length + 3, ett_gtp_ies[GTP_EXT_APN], &te, val_to_str_ext_const(GTP_EXT_APN, >p_val_ext, "Unknown field")); proto_tree_add_item(ext_tree_apn, hf_gtp_apn_length, tvb, offset + 1, 2, ENC_BIG_ENDIAN); decode_apn(pinfo, tvb, offset + 3, length, ext_tree_apn, te); return 3 + length; } /* GPRS: 9.60 v7.6.0, chapter 7.9.22 * 4.08 v. 7.1.2, chapter 10.5.6.3 (p.580) * UMTS: 29.060 v4.0, chapter 7.7.31 Protocol Configuration Options * 24.008, v4.2, chapter 10.5.6.3 */ int decode_gtp_proto_conf(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t length; tvbuff_t *next_tvb; proto_tree *ext_tree_proto; length = tvb_get_ntohs(tvb, offset + 1); ext_tree_proto = proto_tree_add_subtree(tree, tvb, offset, length + 3, ett_gtp_proto, NULL, val_to_str_ext_const(GTP_EXT_PROTO_CONF, >p_val_ext, "Unknown message")); proto_tree_add_uint(ext_tree_proto, hf_gtp_length, tvb, offset + 1, 2, length); if (length < 1) return 3; /* The Protocol Configuration Options contains external network protocol options that may be necessary to transfer * between the GGSN and the MS. The content and the coding of the Protocol Configuration are defined in octet 3-z of the * Protocol Configuration Options in3GPP TS 24.008 [5]. */ next_tvb = tvb_new_subset_length(tvb, offset + 3, length); de_sm_pco(next_tvb, ext_tree_proto, pinfo, 0, length, NULL, 0); return 3 + length; } /* GPRS: 9.60 v7.6.0, chapter 7.9.23 * UMTS: 29.060 v4.0, chapter 7.7.32 */ static int decode_gtp_gsn_addr_common(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args, const char * tree_name, int hf_ipv4, int hf_ipv6) { uint8_t addr_type, addr_len; uint16_t length; proto_tree *ext_tree_gsn_addr; proto_item *te; address *gsn_address; length = tvb_get_ntohs(tvb, offset + 1); ext_tree_gsn_addr = proto_tree_add_subtree_format(tree, tvb, offset, 3 + length, ett_gtp_gsn_addr, &te, "%s : ", tree_name); gsn_address = wmem_new0(pinfo->pool, address); switch (length) { case 4: proto_tree_add_item(ext_tree_gsn_addr, hf_gtp_gsn_address_length, tvb, offset + 1, 2, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_gsn_addr, hf_ipv4, tvb, offset + 3, 4, ENC_BIG_ENDIAN); if (hf_ipv4 != hf_gtp_gsn_ipv4) proto_item_set_hidden(proto_tree_add_item(ext_tree_gsn_addr, hf_gtp_gsn_ipv4, tvb, offset + 3, 4, ENC_BIG_ENDIAN)); proto_item_append_text(te, "%s", tvb_ip_to_str(pinfo->pool, tvb, offset + 3)); set_address_tvb(gsn_address, AT_IPv4, 4, tvb, offset + 3); break; case 5: proto_tree_add_item(ext_tree_gsn_addr, hf_gtp_gsn_address_information_element_length, tvb, offset + 1, 2, ENC_BIG_ENDIAN); addr_type = tvb_get_uint8(tvb, offset + 3) & 0xC0; proto_tree_add_uint(ext_tree_gsn_addr, hf_gtp_gsn_addr_type, tvb, offset + 3, 1, addr_type); addr_len = tvb_get_uint8(tvb, offset + 3) & 0x3F; proto_tree_add_uint(ext_tree_gsn_addr, hf_gtp_gsn_addr_len, tvb, offset + 3, 1, addr_len); proto_tree_add_item(ext_tree_gsn_addr, hf_ipv4, tvb, offset + 4, 4, ENC_BIG_ENDIAN); if (hf_ipv4 != hf_gtp_gsn_ipv4) proto_item_set_hidden(proto_tree_add_item(ext_tree_gsn_addr, hf_gtp_gsn_ipv4, tvb, offset + 4, 4, ENC_BIG_ENDIAN)); proto_item_append_text(te, "%s", tvb_ip_to_str(pinfo->pool, tvb, offset + 4)); set_address_tvb(gsn_address, AT_IPv6, 16, tvb, offset + 4); break; case 16: proto_tree_add_item(ext_tree_gsn_addr, hf_gtp_gsn_address_length, tvb, offset + 1, 2, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_gsn_addr, hf_ipv6, tvb, offset + 3, 16, ENC_NA); if (hf_ipv6 != hf_gtp_gsn_ipv6) proto_item_set_hidden(proto_tree_add_item(ext_tree_gsn_addr, hf_gtp_gsn_ipv6, tvb, offset + 3, 16, ENC_NA)); proto_item_append_text(te, "%s", tvb_ip6_to_str(pinfo->pool, tvb, offset + 3)); set_address_tvb(gsn_address, AT_IPv4, 4, tvb, offset + 3); break; case 17: proto_tree_add_item(ext_tree_gsn_addr, hf_gtp_gsn_address_information_element_length, tvb, offset + 1, 2, ENC_BIG_ENDIAN); addr_type = tvb_get_uint8(tvb, offset + 3) & 0xC0; proto_tree_add_uint(ext_tree_gsn_addr, hf_gtp_gsn_addr_type, tvb, offset + 3, 1, addr_type); addr_len = tvb_get_uint8(tvb, offset + 3) & 0x3F; proto_tree_add_uint(ext_tree_gsn_addr, hf_gtp_gsn_addr_len, tvb, offset + 3, 1, addr_len); proto_item_append_text(te, "%s", tvb_ip6_to_str(pinfo->pool, tvb, offset + 4)); proto_tree_add_item(ext_tree_gsn_addr, hf_ipv6, tvb, offset + 4, 16, ENC_NA); if (hf_ipv6 != hf_gtp_gsn_ipv6) proto_item_set_hidden(proto_tree_add_item(ext_tree_gsn_addr, hf_gtp_gsn_ipv6, tvb, offset + 4, 16, ENC_NA)); set_address_tvb(gsn_address, AT_IPv6, 16, tvb, offset + 4); break; default: proto_item_append_text(te, "unknown type or wrong length"); break; } if (g_gtp_session && gtp_version == 1 && !PINFO_FD_VISITED(pinfo)) { if (!ip_exists(*gsn_address, args->ip_list)) { copy_address_wmem(pinfo->pool, &args->last_ip, gsn_address); wmem_list_prepend(args->ip_list, gsn_address); } } return 3 + length; } static int decode_gtp_gsn_addr(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args) { return decode_gtp_gsn_addr_common(tvb, offset, pinfo, tree, args, "GSN address", hf_gtp_gsn_ipv4, hf_gtp_gsn_ipv6); } static int decode_gtp_sgsn_addr_for_control_plane(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args) { return decode_gtp_gsn_addr_common(tvb, offset, pinfo, tree, args, "SGSN Address for control plane", hf_gtp_sgsn_address_for_control_plane_ipv4, hf_gtp_sgsn_address_for_control_plane_ipv6); } static int decode_gtp_sgsn_addr_for_user_plane(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args) { return decode_gtp_gsn_addr_common(tvb, offset, pinfo, tree, args, "SGSN Address for user traffic", hf_gtp_sgsn_address_for_user_traffic_ipv4, hf_gtp_sgsn_address_for_user_traffic_ipv6); } static int decode_gtp_ggsn_addr_for_control_plane(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args) { return decode_gtp_gsn_addr_common(tvb, offset, pinfo, tree, args, "GGSN Address for control plane", hf_gtp_ggsn_address_for_control_plane_ipv4, hf_gtp_ggsn_address_for_control_plane_ipv6); } static int decode_gtp_ggsn_addr_for_user_plane(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args) { return decode_gtp_gsn_addr_common(tvb, offset, pinfo, tree, args, "GGSN Address for user traffic", hf_gtp_ggsn_address_for_user_traffic_ipv4, hf_gtp_ggsn_address_for_user_traffic_ipv6); } /* GPRS: 9.60 v7.6.0, chapter 7.9.24 * UMTS: 29.060 v4.0, chapter 7.7.33 */ static int decode_gtp_msisdn(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t length; tvbuff_t *next_tvb; proto_tree *ext_tree_proto; length = tvb_get_ntohs(tvb, offset + 1); ext_tree_proto = proto_tree_add_subtree(tree, tvb, offset, length + 3, ett_gtp_proto, NULL, val_to_str_ext_const(GTP_EXT_MSISDN, >p_val_ext, "Unknown message")); proto_tree_add_uint(ext_tree_proto, hf_gtp_length, tvb, offset + 1, 2, length); length = tvb_get_ntohs(tvb, offset + 1); if (length < 1) return 3; next_tvb = tvb_new_subset_length(tvb, offset+3, length); dissect_gsm_map_msisdn(next_tvb, pinfo, ext_tree_proto); return 3 + length; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.34 * 24.008 v4.2, chapter 10.5.6.5 */ static int decode_gtp_qos_umts(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { return decode_qos_umts(tvb, offset, pinfo, tree, "Quality of Service", 2); } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.35 */ static int decode_gtp_auth_qui(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { proto_tree *ext_tree; uint16_t length; uint8_t xres_len, auth_len; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, length + 1, ett_gtp_quint, NULL, "Quintuplet"); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; proto_tree_add_item(ext_tree, hf_gtp_rand, tvb, offset, 16, ENC_NA); offset = offset + 16; xres_len = tvb_get_uint8(tvb, offset); proto_tree_add_item(ext_tree, hf_gtp_xres_length, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_xres, tvb, offset, xres_len, ENC_NA); offset = offset + xres_len; proto_tree_add_item(ext_tree, hf_gtp_quintuplet_ciphering_key, tvb, offset, 16, ENC_NA); offset = offset + 16; proto_tree_add_item(ext_tree, hf_gtp_quintuplet_integrity_key, tvb, offset, 16, ENC_NA); offset = offset + 16; auth_len = tvb_get_uint8(tvb, offset); proto_tree_add_item(ext_tree, hf_gtp_authentication_length, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_auth, tvb, offset, auth_len, ENC_NA); return (3 + length); } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.36 * 24.008 v4.2, chapter 10.5.6.12 */ static int decode_gtp_tft(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { proto_tree *ext_tree_tft; unsigned length; length = tvb_get_ntohs(tvb, offset + 1); ext_tree_tft = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_tft, NULL, "Traffic flow template"); proto_tree_add_item(ext_tree_tft, hf_gtp_tft_length, tvb, offset + 1, 2, ENC_BIG_ENDIAN); /* The detailed coding of Traffic Flow Template * 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, ext_tree_tft, pinfo, offset + 3, length, NULL, 0); return 3 + length; } /* GPRS: not present * UMTS: 3GPP TS 29.060 version 10.4.0 Release 10, chapter 7.7.37 * Type = 138 (Decimal) * 25.413(RANAP) TargetID * There are several CRs to this IE make sure to check with a recent spec if dissection is questioned. */ static int decode_gtp_target_id(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_TARGET_ID], NULL, "Target Identification"); offset = offset + 1; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; if (length == 0){ return 3 + length; } /* Quote from specification: * The Target Identification information element contains the identification of a target RNC. Octets 4-n shall contain a * non-transparent copy of the corresponding IEs (see subclause 7.7.2) and be encoded as specified in Figure 51 below. * The "Target RNC-ID" part of the "Target ID" parameter is specified in 3GPP TS 25.413 [7]. * NOTE 1: The ASN.1 parameter "Target ID" is forwarded non-transparently in order to maintain backward compatibility. * NOTE 2: The preamble of the "Target RNC-ID" (numerical value of e.g. 0x20) however shall not be included in * octets 4-n. Also the optional "iE-Extensions" parameter shall not be included into the GTP IE. */ /* Octet 4-6 MCC + MNC */ if (length == 9) { /* Patch for systems still not following NOTE 2 */ proto_tree_add_expert_format(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, 1, "Not Compliant with 3GPP TS 29.060 7.7.37: The preamble of the \"Target RNC-ID\" (numerical value of e.g. 0x20) however shall not be included in octets 4-n."); offset+=1; dissect_e212_mcc_mnc(tvb, pinfo, ext_tree, offset, E212_NONE, false); } else { /* Following Standards */ dissect_e212_mcc_mnc(tvb, pinfo, ext_tree, offset, E212_NONE, true); } offset+=3; /* Octet 7-8 LAC */ proto_tree_add_item(ext_tree, hf_gtp_lac, tvb, offset, 2, ENC_BIG_ENDIAN); offset+=2; /* Octet 9 RAC */ proto_tree_add_item(ext_tree, hf_gtp_rai_rac, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; /* Octet 10-11 RNC-ID*/ proto_tree_add_item(ext_tree, hf_gtp_target_rnc_id, tvb, offset, 2, ENC_BIG_ENDIAN); offset+=2; /* 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 == 10){ proto_tree_add_item(ext_tree, hf_gtp_target_ext_rnc_id, tvb, offset, 2, ENC_BIG_ENDIAN); } return 3 + length; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.38 */ static int decode_gtp_utran_cont(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; tvbuff_t *new_tvb; proto_tree *sub_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_UTRAN_CONT], NULL, "UTRAN transparent Container"); offset = offset + 1; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; proto_tree_add_item(ext_tree, hf_gtp_utran_field, tvb, offset, length, ENC_NA); switch (pinfo->link_dir) { case P2P_DIR_UL: sub_tree = proto_tree_add_subtree(ext_tree, tvb, offset, length, ett_gtp_utran_cont, 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); break; case P2P_DIR_DL: sub_tree = proto_tree_add_subtree(ext_tree, tvb, offset, length, ett_gtp_utran_cont, NULL, "Target RNC to Source RNC Transparent Container"); new_tvb = tvb_new_subset_remaining(tvb, offset); dissect_ranap_TargetRNC_ToSourceRNC_TransparentContainer_PDU(new_tvb, pinfo, sub_tree, NULL); break; default: break; } return 3 + length; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.39 */ static int decode_gtp_rab_setup(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint32_t teid; uint16_t length; proto_tree *ext_tree_rab_setup; length = tvb_get_ntohs(tvb, offset + 1); ext_tree_rab_setup = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_rab_setup, NULL, "Radio Access Bearer Setup Information"); proto_tree_add_item(ext_tree_rab_setup, hf_gtp_rab_setup_length, tvb, offset + 1, 2, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree_rab_setup, hf_gtp_nsapi, tvb, offset + 3, 1, ENC_BIG_ENDIAN); if (length > 1) { teid = tvb_get_ntohl(tvb, offset + 4); proto_tree_add_uint(ext_tree_rab_setup, hf_gtp_teid_data, tvb, offset + 4, 4, teid); switch (length) { case 9: proto_tree_add_item(ext_tree_rab_setup, hf_gtp_rnc_ipv4, tvb, offset + 8, 4, ENC_BIG_ENDIAN); break; case 21: proto_tree_add_item(ext_tree_rab_setup, hf_gtp_rnc_ipv6, tvb, offset + 8, 16, ENC_NA); break; default: break; } } return 3 + length; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.40 */ static int decode_gtp_hdr_list(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { int i; uint8_t length, hdr; proto_tree *ext_tree_hdr_list; length = tvb_get_uint8(tvb, offset + 1); ext_tree_hdr_list = proto_tree_add_subtree(tree, tvb, offset, 2 + length, ett_gtp_hdr_list, NULL, val_to_str_ext_const(GTP_EXT_HDR_LIST, >p_val_ext, "Unknown")); proto_tree_add_item(ext_tree_hdr_list, hf_gtp_num_ext_hdr_types, tvb, offset + 1, 1, ENC_NA); for (i = 0; i < length; i++) { hdr = tvb_get_uint8(tvb, offset + 2 + i); proto_tree_add_uint_format(ext_tree_hdr_list, hf_gtp_ext_hdr_type, tvb, offset + 2 + i, 1, hdr, "No. %u --> Extension Header Type value : %s (0x%02x)", i + 1, val_to_str_const(hdr, next_extension_header_fieldvals, "Unknown Extension Header Type"), hdr); } return 2 + length; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.41 * TODO: find TriggerID description */ static int decode_gtp_trigger_id(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_item* ti; length = tvb_get_ntohs(tvb, offset + 1); ti = proto_tree_add_uint_format(tree, hf_gtp_ext_length, tvb, offset, 2, length, "%s length : %u", val_to_str_ext_const(GTP_EXT_TRIGGER_ID, >p_val_ext, "Unknown"), length); proto_item_set_len(ti, 3 + length); return 3 + length; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.42 * TODO: find OMC-ID description */ static int decode_gtp_omc_id(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_item* ti; length = tvb_get_ntohs(tvb, offset + 1); ti = proto_tree_add_uint_format(tree, hf_gtp_ext_length, tvb, offset, 2, length, "%s length : %u", val_to_str_ext_const(GTP_EXT_OMC_ID, >p_val_ext, "Unknown"), length); proto_item_set_len(ti, 3 + length); return 3 + length; } /* GPRS: 9.60 v7.6.0, chapter 7.9.25 * UMTS: 29.060 v6.11.0, chapter 7.7.44 Charging Gateway Address */ static int decode_gtp_chrg_addr(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree_chrg_addr; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); ext_tree_chrg_addr = proto_tree_add_subtree_format(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_CHRG_ADDR], &te, "%s : ", val_to_str_ext_const(GTP_EXT_CHRG_ADDR, >p_val_ext, "Unknown")); proto_tree_add_uint_format(ext_tree_chrg_addr, hf_gtp_ext_length, tvb, offset + 1, 2, length, "%s length : %u", val_to_str_ext_const(GTP_EXT_CHRG_ADDR, >p_val_ext, "Unknown"), length); switch (length) { case 4: proto_tree_add_item(ext_tree_chrg_addr, hf_gtp_chrg_ipv4, tvb, offset + 3, 4, ENC_BIG_ENDIAN); proto_item_append_text(te, "%s", tvb_ip_to_str(pinfo->pool, tvb, offset + 3)); break; case 16: proto_tree_add_item(ext_tree_chrg_addr, hf_gtp_chrg_ipv6, tvb, offset + 3, 16, ENC_NA); proto_item_append_text(te, "%s", tvb_ip6_to_str(pinfo->pool, tvb, offset + 3)); break; default: proto_item_append_text(te, "unknown type or wrong length"); break; } return 3 + length; } /* GPRS: ? * UMTS: 29.060 V9.4.0, chapter 7.7.43 RAN Transparent Container * The information in the value part of the RAN Transparent Container IE contains all information elements (starting with * and including the BSSGP "PDU Type") in either of the RAN INFORMATION, RAN INFORMATION REQUEST, * RAN INFORMATION ACK or RAN INFORMATION ERROR messages respectively as specified in 3GPP TS 48.018 */ static int decode_gtp_ran_tr_cont(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; tvbuff_t *next_tvb; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree_format(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_RAN_TR_CONT], NULL, "%s : ", val_to_str_ext_const(GTP_EXT_RAN_TR_CONT, >p_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; next_tvb = tvb_new_subset_length(tvb, offset, length); if (bssgp_handle) { #if 0 col_set_fence(pinfo->cinfo, COL_INFO); #endif call_dissector(bssgp_handle, next_tvb, pinfo, ext_tree); } return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.45 PDP Context Prioritization */ static int decode_gtp_pdp_cont_prio(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree_format(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_PDP_CONT_PRIO], NULL, "%s : ", val_to_str_ext_const(GTP_EXT_PDP_CONT_PRIO, >p_val_ext, "Unknown")); if (length == 0) { return 3; } offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* TODO add decoding of data */ proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length); return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.45A Additional RAB Setup Information */ static int decode_gtp_add_rab_setup_inf(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree_format(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_ADD_RAB_SETUP_INF], NULL, "%s : ", val_to_str_ext_const(GTP_EXT_ADD_RAB_SETUP_INF, >p_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; proto_tree_add_item(ext_tree, hf_gtp_nsapi, tvb, offset, 1, ENC_BIG_ENDIAN); if (length == 1) return 3 + length; offset++; proto_tree_add_item(ext_tree, hf_gtp_teid, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; if (length == 9) { /* RNC IP address IPv4*/ proto_tree_add_item(ext_tree, hf_gtp_rnc_ip_addr_v4, tvb, offset, 4, ENC_BIG_ENDIAN); } else { /* RNC IP address IPv6*/ proto_tree_add_item(ext_tree, hf_gtp_rnc_ip_addr_v6, tvb, offset, 16, ENC_NA); } return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.47 SGSN Number */ static int decode_gtp_sgsn_no(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; tvbuff_t *new_tvb; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree_format(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_SGSN_NO], NULL, "%s", val_to_str_ext_const(GTP_EXT_SGSN_NO, >p_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; new_tvb = tvb_new_subset_length(tvb, offset, length); dissect_gsm_map_msisdn(new_tvb, pinfo, ext_tree); return 3 + length; } /* GPRS: ? * UMTS: 3GPP TS 29.060 version 7.8.0 Release 7, chapter 7.7.48 Common Flags */ static int decode_gtp_common_flgs(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree_format(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_COMMON_FLGS], NULL, "%s : ", val_to_str_ext_const(GTP_EXT_COMMON_FLGS, >p_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* Dual Address Bearer Flag */ proto_tree_add_item(ext_tree, hf_gtp_cmn_flg_dual_addr_bearer_flg, tvb, offset, 1, ENC_BIG_ENDIAN); /* Upgrade QoS Supported */ proto_tree_add_item(ext_tree, hf_gtp_cmn_flg_upgrd_qos_sup, tvb, offset, 1, ENC_BIG_ENDIAN); /* NRSN bit field */ proto_tree_add_item(ext_tree, hf_gtp_cmn_flg_nrsn, tvb, offset, 1, ENC_BIG_ENDIAN); /* No QoS negotiation */ proto_tree_add_item(ext_tree, hf_gtp_cmn_flg_no_qos_neg, tvb, offset, 1, ENC_BIG_ENDIAN); /* MBMS Counting Information bi */ proto_tree_add_item(ext_tree, hf_gtp_cmn_flg_mbs_cnt_inf, tvb, offset, 1, ENC_BIG_ENDIAN); /* RAN Procedures Ready */ proto_tree_add_item(ext_tree, hf_gtp_cmn_flg_mbs_ran_pcd_rdy, tvb, offset, 1, ENC_BIG_ENDIAN); /* MBMS Service Type */ proto_tree_add_item(ext_tree, hf_gtp_cmn_flg_mbs_srv_type, tvb, offset, 1, ENC_BIG_ENDIAN); /* Prohibit Payload Compression */ proto_tree_add_item(ext_tree, hf_gtp_cmn_flg_ppc, tvb, offset, 1, ENC_BIG_ENDIAN); return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.49 */ static int decode_gtp_apn_res(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree_apn_res; length = tvb_get_ntohs(tvb, offset + 1); ext_tree_apn_res = proto_tree_add_subtree_format(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_APN_RES], NULL, "%s : ", val_to_str_ext_const(GTP_EXT_APN_RES, >p_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree_apn_res, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* Restriction Type value */ if (length != 1) { proto_tree_add_expert_format(tree, pinfo, &ei_gtp_ext_length_mal, tvb, 0, length, "Wrong length indicated. Expected 1, got %u", length); return 3 + length; } proto_tree_add_item(ext_tree_apn_res, hf_gtp_ext_apn_res, tvb, offset, length, ENC_BIG_ENDIAN); return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.50 RAT Type * RAT Type * Type = 151 (Decimal) */ static int decode_gtp_rat_type(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree_rat_type; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); ext_tree_rat_type = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_RAT_TYPE], &te, val_to_str_ext_const(GTP_EXT_RAT_TYPE, >p_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree_rat_type, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* RAT Type value */ if (length != 1) { proto_tree_add_expert_format(tree, pinfo, &ei_gtp_ext_length_mal, tvb, 0, length, "Wrong length indicated. Expected 1, got %u", length); return 3 + length; } proto_tree_add_item(ext_tree_rat_type, hf_gtp_ext_rat_type, tvb, offset, length, ENC_BIG_ENDIAN); proto_item_append_text(te, ": %s", val_to_str_const(tvb_get_uint8(tvb,offset), gtp_ext_rat_type_vals, "Unknown")); return 3 + length; } /* * 7.7.51 User Location Information */ void dissect_gtp_uli(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint8_t geo_loc_type; proto_item* ti; /* Geographic Location Type */ geo_loc_type = tvb_get_uint8(tvb, offset); ti = proto_tree_add_uint(tree, hf_gtp_uli_geo_loc_type, tvb, offset, 1, geo_loc_type); offset++; switch(geo_loc_type) { case 0: /* Geographic Location field included and it holds the Cell Global * Identification (CGI) of where the user currently is registered. * CGI is defined in sub-clause 4.3.1 of 3GPP TS 23.003 [2]. */ dissect_e212_mcc_mnc(tvb, pinfo, tree, offset, E212_CGI, true); offset+=3; proto_tree_add_item(tree, hf_gtp_lac, tvb, offset, 2, ENC_BIG_ENDIAN); offset+=2; /* The CI is of fixed length with 2 octets and it can be coded using a full hexadecimal representation */ proto_tree_add_item(tree, hf_gtp_cgi_ci, tvb, offset, 2, ENC_BIG_ENDIAN); break; case 1: /* Geographic Location field included and it holds the Service * Area Identity (SAI) of where the user currently is registered. * SAI is defined in sub-clause 9.2.3.9 of 3GPP TS 25.413 [7]. */ dissect_e212_mcc_mnc(tvb, pinfo, tree, offset, E212_SAI, true); offset+=3; proto_tree_add_item(tree, hf_gtp_lac, tvb, offset, 2, ENC_BIG_ENDIAN); offset+=2; proto_tree_add_item(tree, hf_gtp_sai_sac, tvb, offset, 2, ENC_BIG_ENDIAN); break; case 2: /* Geographic Location field included and it holds the Routing * Area Identification (RAI) of where the user currently is * registered. RAI is defined in sub-clause 4.2 of 3GPP TS 23.003 * [2]. * * The routing area code consists of 2 octets and is found in octet * 10 and octet 11. Only the first octet (10) contains the RAC and * the second octet (11) is coded as "11111111". */ dissect_e212_mcc_mnc(tvb, pinfo, tree, offset, E212_RAI, true); offset+=3; proto_tree_add_item(tree, hf_gtp_lac, tvb, offset, 2, ENC_BIG_ENDIAN); offset+=2; proto_tree_add_item(tree, hf_gtp_rai_rac, tvb, offset, 1, ENC_BIG_ENDIAN); break; default: expert_add_info(pinfo, ti, &ei_gtp_ext_geo_loc_type); break; } } static int decode_gtp_usr_loc_inf(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_USR_LOC_INF], NULL, val_to_str_ext_const(GTP_EXT_USR_LOC_INF, >p_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; dissect_gtp_uli(tvb, offset, pinfo, ext_tree, args); return 3 + length; } static const value_string daylight_saving_time_vals[] = { {0, "No adjustment"}, {1, "+1 hour adjustment for Daylight Saving Time"}, {2, "+2 hours adjustment for Daylight Saving Time"}, {3, "Reserved"}, {0, NULL} }; /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.52 * MS Time Zone * Type = 153 (Decimal) * The ' MS Time Zone' IE is used to indicate the offset between universal time and local time * in steps of 15 minutes of where the MS currently resides. The 'Time Zone' field uses the same * format as the 'Time Zone' IE in 3GPP TS 24.008 (10.5.3.8) * its value shall be set as defined in 3GPP TS 22.042 */ static int decode_gtp_ms_time_zone(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; proto_item *te; uint8_t data; char sign; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree_format(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_MS_TIME_ZONE], &te, "%s: ", val_to_str_ext_const(GTP_EXT_MS_TIME_ZONE, >p_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* 3GPP TS 23.040 version 6.6.0 Release 6 * 9.2.3.11 TP-Service-Centre-Time-Stamp (TP-SCTS) * : * The Time Zone indicates the difference, expressed in quarters of an hour, * between the local time and GMT. In the first of the two semi-octets, * the first bit (bit 3 of the seventh octet of the TP-Service-Centre-Time-Stamp field) * represents the algebraic sign of this difference (0: positive, 1: negative). */ data = tvb_get_uint8(tvb, offset); sign = (data & 0x08) ? '-' : '+'; data = (data >> 4) + (data & 0x07) * 10; proto_tree_add_uint_format_value(ext_tree, hf_gtp_timezone, tvb, offset, 1, data, "GMT %c %d hours %d minutes", sign, data / 4, data % 4 * 15); proto_item_append_text(te, "GMT %c %d hours %d minutes", sign, data / 4, data % 4 * 15); offset++; proto_tree_add_item(ext_tree, hf_gtp_timezone_dst, tvb, offset, 1, ENC_NA); return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.53 * International Mobile Equipment Identity (and Software Version) (IMEI(SV)) * Type = 154 (Decimal) */ static int decode_gtp_imeisv(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_imeisv; proto_item *te; tvbuff_t *next_tvb; char *digit_str; length = tvb_get_ntohs(tvb, offset + 1); ext_imeisv = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_IMEISV], &te, val_to_str_ext_const(GTP_EXT_IMEISV, >p_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_imeisv, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* IMEI(SV) * The structure of the IMEI and IMEISV are defined in sub-clause 6.2 of 3GPP TS 23.003 [2]. * The 'IMEI(SV)' field shall contain the IMEISV if it is available. If only the IMEI is available, * then the IMEI shall be placed in the IMEI(SV) field and the last semi-octet of octet 11 shall be * set to '1111'. Both IMEI and IMEISV are BCD encoded. */ next_tvb = tvb_new_subset_length(tvb, offset, length); proto_tree_add_item_ret_display_string(ext_imeisv, hf_gtp_ext_imeisv, next_tvb, 0, -1, ENC_BCD_DIGITS_0_9|ENC_LITTLE_ENDIAN, pinfo->pool, &digit_str); proto_item_append_text(te, ": %s", digit_str); return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.54 * CAMEL Charging Information Container * Type = 155 (Decimal) */ static int decode_gtp_camel_chg_inf_con(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_CAMEL_CHG_INF_CON], NULL, val_to_str_ext_const(GTP_EXT_CAMEL_CHG_INF_CON, >p_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; dissect_gprscdr_CAMELInformationPDP_PDU(tvb_new_subset_length(tvb, offset, length), pinfo, ext_tree, NULL); return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.55 * MBMS UE Context */ static int decode_gtp_mbms_ue_ctx(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; uint8_t enh_nsapi, trans_id; uint32_t pdp_type_num, pdp_addr_len, ggsn_addr_len, apn_len; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_MBMS_UE_CTX], NULL, val_to_str_ext_const(GTP_EXT_MBMS_UE_CTX, >p_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; proto_tree_add_item(ext_tree, hf_gtp_linked_nsapi, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_uplink_teid_cp, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; enh_nsapi = tvb_get_uint8(tvb, offset); if (enh_nsapi < 128) { proto_tree_add_uint_format_value(ext_tree, hf_gtp_enh_nsapi, tvb, offset, 1, enh_nsapi, "Reserved"); } else { proto_tree_add_item(ext_tree, hf_gtp_enh_nsapi, tvb, offset, 1, ENC_BIG_ENDIAN); } offset++; proto_tree_add_item(ext_tree, hf_gtp_pdp_organization, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item_ret_uint(ext_tree, hf_gtp_pdp_type, tvb, offset, 1, ENC_BIG_ENDIAN, &pdp_type_num); offset++; proto_tree_add_item_ret_uint(ext_tree, hf_gtp_pdp_address_length, tvb, offset, 1, ENC_BIG_ENDIAN, &pdp_addr_len); offset++; if (pdp_addr_len > 0) { switch (pdp_type_num) { case 0x21: proto_tree_add_item(ext_tree, hf_gtp_pdp_address_ipv4, tvb, offset, 4, ENC_BIG_ENDIAN); break; case 0x57: proto_tree_add_item(ext_tree, hf_gtp_pdp_address_ipv6, tvb, offset, 16, ENC_NA); break; default: break; } offset += pdp_addr_len; } proto_tree_add_item_ret_uint(ext_tree, hf_gtp_ggsn_address_length, tvb, offset, 1, ENC_BIG_ENDIAN, &ggsn_addr_len); offset++; switch (ggsn_addr_len) { case 4: proto_tree_add_item(ext_tree, hf_gtp_ggsn_address_for_control_plane_ipv4, tvb, offset, 4, ENC_BIG_ENDIAN); break; case 16: proto_tree_add_item(ext_tree, hf_gtp_ggsn_address_for_control_plane_ipv6, tvb, offset, 16, ENC_NA); break; default: /* XXX: Expert info? */ break; } offset += ggsn_addr_len; proto_tree_add_item_ret_uint(ext_tree, hf_gtp_apn_length, tvb, offset, 1, ENC_BIG_ENDIAN, &apn_len); offset++; decode_apn(pinfo, tvb, offset, apn_len, ext_tree, NULL); offset += apn_len; /* * The Transaction Identifier is the 4 or 12 bit Transaction Identifier used in the 3GPP TS 24.008 [5] Session Management * messages which control this PDP Context. If the length of the Transaction Identifier is 4 bit, the second octet shall be * set to all zeros. The encoding is defined in 3GPP TS 24.007 [3]. The latest Transaction Identifier sent from SGSN to * MS is stored in the MBMS context IE. * NOTE: Bit 5-8 of the first octet in the encoding defined in 3GPP TS 24.007 [3] is mapped into bit 1-4 of the first * octet in this field. */ trans_id = tvb_get_uint8(tvb, offset); proto_tree_add_uint(ext_tree, hf_gtp_transaction_identifier, tvb, offset, 2, trans_id); return 3 + length; } /* GPRS: ? * UMTS: 3GPP TS 29.060 version 7.8.0 Release 7, chapter 7.7.56 * Temporary Mobile Group Identity (TMGI) * The Temporary Mobile Group Identity (TMGI) information element contains * a TMGI allocated by the BM-SC. It is coded as in the value part defined * in 3GPP T S 24.008 [5] (i.e. the IEI and octet length indicator are not included). */ static int decode_gtp_tmgi(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree, *tmgi_tree; proto_item *ti; tvbuff_t *next_tvb; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_TMGI], NULL, val_to_str_ext_const(GTP_EXT_TMGI, >p_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; ti = proto_tree_add_item(ext_tree, hf_gtp_tmgi, tvb, offset, length, ENC_NA); tmgi_tree = proto_item_add_subtree(ti, ett_gtp_tmgi); next_tvb = tvb_new_subset_length(tvb, offset, length); de_mid(next_tvb, tmgi_tree, pinfo, 0, length, NULL, 0); return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.57 * RIM Routing Address */ static int decode_gtp_rim_ra(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; proto_item *pi; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_RIM_RA], NULL, val_to_str_ext_const(GTP_EXT_RIM_RA, >p_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* To dissect the Address the Routing Address discriminator must be known */ /* * Octets 4-n are coded according to 3GPP TS 48.018 [20] 11.3.77 RIM Routing Information IE octets 4-n. */ pi = proto_tree_add_item(ext_tree, hf_gtp_rim_routing_addr, tvb, offset, length, ENC_NA); if (PINFO_FD_VISITED(pinfo)) { gtp_private_data_t *gtp_data = gtp_get_private_data(pinfo); proto_tree *addr_tree = proto_item_add_subtree(pi, ett_gtp_rim_routing_adr); switch (gtp_data->rim_routing_addr_disc) { case 0: de_bssgp_cell_id(tvb, addr_tree, pinfo, offset, length, NULL, 0); break; case -1: case 1: de_bssgp_rnc_identifier(tvb, addr_tree, pinfo, offset, length, NULL, 0); break; case 2: de_bssgp_enb_id(tvb, addr_tree, pinfo, offset, length, NULL, 0); break; default: break; } } return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.58 * MBMS Protocol Configuration Options */ static int decode_gtp_mbms_prot_conf_opt(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; tvbuff_t *next_tvb; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_MBMS_PROT_CONF_OPT], NULL, val_to_str_ext_const(GTP_EXT_MBMS_PROT_CONF_OPT, >p_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* The MBMS Protocol Configuration Options contains protocol options * associated with an MBMS context, that may be necessary to transfer * between the GGSN and the MS. The content and the coding of the MBMS * Protocol Configuration Options are defined in octets 3-z of the MBMS * Protocol Configuration Options in 3GPP TS 24.008 [5]. */ next_tvb = tvb_new_subset_length(tvb, offset, length); de_sm_mbms_prot_conf_opt(next_tvb, ext_tree, pinfo, 0, length, NULL, 0); return 3 + length; } /* GPRS: ? * UMTS: 3GPP TS 29.060 version 7.8.0 Release 7, chapter 7.7.59 * MBMS Session Duration */ /* Used for Diameter */ static int dissect_gtp_mbms_ses_dur(tvbuff_t * tvb, packet_info * pinfo _U_, proto_tree * tree, void *data _U_) { int offset = 0; proto_tree_add_item(tree, hf_gtp_mbms_ses_dur_days, tvb, offset, 3, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_gtp_mbms_ses_dur_s, tvb, offset, 3, ENC_BIG_ENDIAN); return 3; } static int decode_gtp_mbms_ses_dur(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_MBMS_SES_DUR], NULL, val_to_str_ext_const(GTP_EXT_MBMS_SES_DUR, >p_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* The MBMS Session Duration is defined in 3GPP TS 23.246 [26]. * The MBMS Session Duration information element indicates the estimated * session duration of the MBMS service data transmission if available. * The payload shall be encoded as per the MBMS-Session-Duration AVP defined * in 3GPP TS 29.061 [27], excluding the AVP Header fields * (as defined in IETF RFC 3588 [36], section 4.1). */ /* The MBMS-Session-Duration AVP (AVP code 904) is of type OctetString * with a length of three octets and indicates the estimated session duration * (MBMS Service data transmission). Bits 0 to 16 (17 bits) express seconds, for which the * maximum allowed value is 86400 seconds. Bits 17 to 23 (7 bits) express days, * for which the maximum allowed value is 18 days. For the whole session duration the seconds * and days are added together and the maximum session duration is 19 days. */ proto_tree_add_item(ext_tree, hf_gtp_mbms_ses_dur_days, tvb, offset, 3, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_mbms_ses_dur_s, tvb, offset, 3, ENC_BIG_ENDIAN); return 3 + length; } /* GPRS: ? * UMTS: 3GPP TS 29.060 version 7.8.0 Release 7, chapter 7.7.60 * MBMS Service Area */ static int dissect_gtp_3gpp_mbms_service_area(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data _U_) { int offset = 0; uint8_t no_of_mbms_sa_codes; int i; /* The MBMS Service Area is defined in 3GPP TS 23.246 [26]. * The MBMS Service Area information element indicates the area over * which the Multimedia Broadcast/Multicast Service is to be distributed. * The payload shall be encoded as per the MBMS-Service-Area AVP defined * in 3GPP TS 29.061 [27], excluding the AVP Header fields (as defined in * IETF RFC 3588 [36], section 4.1). */ /* Number N of MBMS service area codes coded as: * 1 binary value is '00000000' * ... ... * 256 binary value is '11111111' */ no_of_mbms_sa_codes = tvb_get_uint8(tvb, offset) + 1; proto_tree_add_uint(tree, hf_gtp_no_of_mbms_sa_codes, tvb, offset, 1, no_of_mbms_sa_codes); offset++; /* A consecutive list of N MBMS service area codes * The MBMS Service Area Identity and its semantics are defined in 3GPP TS 23.003 * The length of an MBMS service area code is 2 octets. */ for (i = 0; i < no_of_mbms_sa_codes; i++) { proto_tree_add_item(tree, hf_gtp_mbms_sa_code, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; } return offset; } static int decode_gtp_mbms_sa(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { tvbuff_t *next_tvb; uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_MBMS_SA], NULL, val_to_str_ext_const(GTP_EXT_MBMS_SA, >p_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; next_tvb = tvb_new_subset_length(tvb, offset, length-3); dissect_gtp_3gpp_mbms_service_area(next_tvb, pinfo, ext_tree, NULL); return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.61 * Source RNC PDCP context info */ static int decode_gtp_src_rnc_pdp_ctx_inf(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree, *sub_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_SRC_RNC_PDP_CTX_INF], NULL, val_to_str_ext_const(GTP_EXT_SRC_RNC_PDP_CTX_INF, >p_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; sub_tree = proto_tree_add_subtree(ext_tree, tvb, offset, length, ett_gtp_rrc_cont, NULL, "Source RNC to Target RNC Transparent Container"); dissect_rrc_ToTargetRNC_Container_PDU(tvb, pinfo, sub_tree, NULL); return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.62 * Additional Trace Info */ static const value_string gtp_trace_depth_vals[] = { { 0, "minimum" }, { 1, "medium" }, { 2, "maximum" }, { 3, "minimumWithoutVendorSpecificExtension" }, { 4, "mediumWithoutVendorSpecificExtension" }, { 5, "maximumWithoutVendorSpecificExtension" }, { 0, NULL } }; static const value_string gtp_trace_activity_control_vals[] = { { 0, "Trace Deactivation"}, { 1, "Trace Activation"}, { 0, NULL} }; static int decode_gtp_add_trs_inf(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; static int * const trigger_flags[] = { &hf_gtp_trace_triggers_ggsn_mbms, &hf_gtp_trace_triggers_ggsn_pdp, NULL }; static int * const loi_flags[] = { &hf_gtp_trace_loi_ggsn_gmb, &hf_gtp_trace_loi_ggsn_gi, &hf_gtp_trace_loi_ggsn_gn, NULL }; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_ADD_TRS_INF], NULL, val_to_str_ext_const(GTP_EXT_ADD_TRS_INF, >p_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; proto_tree_add_item(ext_tree, hf_gtp_trace_ref2, tvb, offset, 3, ENC_BIG_ENDIAN); offset += 3; proto_tree_add_item(ext_tree, hf_gtp_trace_rec_session_ref, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_bitmask(ext_tree, tvb, offset, hf_gtp_trace_triggers_ggsn, ett_gtp_trace_triggers_ggsn, trigger_flags, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_trace_depth, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_bitmask(ext_tree, tvb, offset, hf_gtp_trace_loi_ggsn, ett_gtp_trace_loi_ggsn, loi_flags, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_trace_activity_control, tvb, offset, 1, ENC_BIG_ENDIAN); return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.63 * Hop Counter */ static int decode_gtp_hop_count(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_HOP_COUNT], NULL, val_to_str_ext_const(GTP_EXT_HOP_COUNT, >p_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; proto_tree_add_item(ext_tree, hf_gtp_hop_count, tvb, offset, 1, ENC_NA); return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.64 * Selected PLMN ID */ static int decode_gtp_sel_plmn_id(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_MBMS_SES_ID], NULL, val_to_str_ext_const(GTP_EXT_SEL_PLMN_ID, >p_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; dissect_e212_mcc_mnc(tvb, pinfo, ext_tree, offset, E212_NONE, false); return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.65 * MBMS Session Identifier */ static int decode_gtp_mbms_ses_id(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_MBMS_SES_ID], NULL, val_to_str_ext_const(GTP_EXT_MBMS_SES_ID, >p_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* TODO add decoding of data */ proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length); return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.66 * MBMS 2G/3G Indicator */ static const value_string gtp_mbs_2g_3g_ind_vals[] = { {0, "2G only"}, {1, "3G only"}, {2, "Both 2G and 3G"}, {0, NULL} }; static int decode_gtp_mbms_2g_3g_ind(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_MBMS_2G_3G_IND], NULL, val_to_str_ext_const(GTP_EXT_MBMS_2G_3G_IND, >p_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* MBMS 2G/3G Indicator */ proto_tree_add_item(ext_tree, hf_gtp_mbs_2g_3g_ind, tvb, offset, 1, ENC_BIG_ENDIAN); return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.67 * Enhanced NSAPI */ static int decode_gtp_enh_nsapi(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; uint8_t enh_nsapi; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_ENH_NSAPI], NULL, val_to_str_ext_const(GTP_EXT_ENH_NSAPI, >pv1_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; enh_nsapi = tvb_get_uint8(tvb, offset); if (enh_nsapi < 128) { proto_tree_add_uint_format_value(ext_tree, hf_gtp_enh_nsapi, tvb, offset, 1, enh_nsapi, "Reserved"); } else { proto_tree_add_item(ext_tree, hf_gtp_enh_nsapi, tvb, offset, 1, ENC_BIG_ENDIAN); } return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.68 * Additional MBMS Trace Info */ static int decode_gtp_add_mbms_trs_inf(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; static int * const trigger_flags[] = { &hf_gtp_trace_triggers_bm_sc_mbms, NULL }; static int * const loi_flags[] = { &hf_gtp_trace_loi_bm_sc_gmb, NULL }; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_ADD_MBMS_TRS_INF], NULL, val_to_str_ext_const(GTP_EXT_ADD_MBMS_TRS_INF, >pv1_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* XXX: There is clearly an error in TS 29.060 V17.1.0 and earlier. * In Figure 7.7.68.1 the octet column has a gap and is not aligned, * octets 7-8 should be for the Trace Recording Session Reference, other * values should be moved up a row, and there should be a value for * the Trace Activity Control as octet 12, making the IE length 9, * as with 7.7.62 Additional Trace Info. * Unfortunately the mistake is carried over into the the length field * elsewhere in the spec, such as in Table 37. */ proto_tree_add_item(ext_tree, hf_gtp_trace_ref2, tvb, offset, 3, ENC_BIG_ENDIAN); offset += 3; proto_tree_add_item(ext_tree, hf_gtp_trace_rec_session_ref, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_bitmask(ext_tree, tvb, offset, hf_gtp_trace_triggers_bm_sc, ett_gtp_trace_triggers_bm_sc, trigger_flags, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_trace_depth, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_bitmask(ext_tree, tvb, offset, hf_gtp_trace_loi_bm_sc, ett_gtp_trace_loi_bm_sc, loi_flags, ENC_BIG_ENDIAN); if(length > 8){ offset++; proto_tree_add_item(ext_tree, hf_gtp_trace_activity_control, tvb, offset, 1, ENC_BIG_ENDIAN); } return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.69 * MBMS Session Identity Repetition Number */ static int decode_gtp_mbms_ses_id_rep_no(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_MBMS_SES_ID_REP_NO], NULL, val_to_str_ext_const(GTP_EXT_MBMS_SES_ID_REP_NO, >pv1_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* TODO add decoding of data */ proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length); return 3 + length; } /* GPRS: ? * UMTS: 3GPP TS 29.060 version 7.8.0 Release 7 * MBMS Time To Data Transfer */ /* Used for Diameter */ static int dissect_gtp_mbms_time_to_data_tr(tvbuff_t * tvb, packet_info * pinfo _U_, proto_tree * tree, void *data _U_) { int offset = 0; uint8_t time_2_dta_tr; time_2_dta_tr = tvb_get_uint8(tvb, offset) + 1; proto_tree_add_uint(tree, hf_gtp_time_2_dta_tr, tvb, offset, 1, time_2_dta_tr); return 3; } static int decode_gtp_mbms_time_to_data_tr(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; uint8_t time_2_dta_tr; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_MBMS_TIME_TO_DATA_TR], NULL, val_to_str_ext_const(GTP_EXT_MBMS_TIME_TO_DATA_TR, >pv1_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* TODO add decoding of data * The MBMS Time To Data Transfer is defined in 3GPP TS 23.246 [26]. * The MBMS Time To Data Transfer information element contains a * MBMS Time To Data Transfer allocated by the BM-SC. * The payload shall be encoded as per the MBMS-Time-To-Data-Transfer AVP * defined in 3GPP TS 29.061 [27], excluding the AVP Header fields * (as defined in IETF RFC 3588 [36], section 4.1). */ /* The coding is specified as per the Time to MBMS Data Transfer Value Part Coding * of the Time to MBMS Data Transfer IE in 3GPP TS 48.018 * Bits * 8 7 6 5 4 3 2 1 * 0 0 0 0 0 0 0 0 1s * 0 0 0 0 0 0 0 1 2s * 0 0 0 0 0 0 1 0 3s * : * 1 1 1 1 1 1 1 1 256s */ time_2_dta_tr = tvb_get_uint8(tvb, offset) + 1; proto_tree_add_uint(ext_tree, hf_gtp_time_2_dta_tr, tvb, offset, 1, time_2_dta_tr); return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.71 * PS Handover Request Context */ static int decode_gtp_ps_ho_req_ctx(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_PS_HO_REQ_CTX], NULL, val_to_str_ext_const(GTP_EXT_PS_HO_REQ_CTX, >pv1_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* TODO add decoding of data */ proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length); return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.72 * BSS Container */ static int decode_gtp_bss_cont(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree, *sub_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_BSS_CONT], NULL, val_to_str_ext_const(GTP_EXT_BSS_CONT, >pv1_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; switch (pinfo->link_dir) { case P2P_DIR_UL: sub_tree = proto_tree_add_subtree(ext_tree, tvb, offset, length, ett_gtp_bss_cont, NULL, "Source BSS to Target BSS Transparent Container"); de_bssgp_source_BSS_to_target_BSS_transp_cont(tvb, sub_tree, pinfo, offset, length, NULL, 0); break; case P2P_DIR_DL: sub_tree = proto_tree_add_subtree(ext_tree, tvb, offset, length, ett_gtp_bss_cont, NULL, "Target BSS to Source BSS Transparent Container"); de_bssgp_target_BSS_to_source_BSS_transp_cont(tvb, sub_tree, pinfo, offset, length, NULL, 0); break; default: break; } /* * The content of this container is defined in 3GPP TS 48.018 */ return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.73 * Cell Identification */ static const value_string gtp_source_type_vals[] = { { 0, "Source Cell ID"}, { 1, "Source RNC-ID" }, { 0, NULL } }; static int decode_gtp_cell_id(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; uint32_t source_type; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_CELL_ID], NULL, val_to_str_ext_const(GTP_EXT_CELL_ID, >pv1_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* * for PS handover from A/Gb mode, the identification of a target cell (Cell ID 1) and the identification of the * source cell (Cell ID 2) as defined in 3GPP TS 48.018 [20]. * * for PS handover from Iu mode, the identification of a target cell (Cell ID 1)) and the identification of the * source RNC (RNC-ID) as defined in 3GPP TS 48.018 * * for PS handover from S1 mode, the identification of a target cell (Target Cell ID) as defined in 3GPP TS 48.018. * Octet 12 shall be set to "Source Cell ID" and octets 13-20 shall be encoded as all zero. * * 3GPP TS 48.018 defines Target and Source Cell ID to use the Cell * Identifier IE, encoded as 6 octets of the value part of the RAI IE * followed by 2 octets of the value of the Cell Identity IE, both defined * in 3GPP TS 24.008. The 3GPP TS 48.018 RNC-ID IE is similar, with the 6 * octet RAI as in 3GPP TS 24.008 followed by two octets of the RNC-ID. * (Or Extended RNC-ID, but the RNC-ID is presented in network byte order * with the most significant bits of octet 9 set to "0000", so there is * no need to distinguish be RNC-ID and Extended RNC-ID.) */ dissect_e212_mcc_mnc(tvb, pinfo, ext_tree, offset, E212_NONE, true); offset += 3; proto_tree_add_item(ext_tree, hf_gtp_target_lac, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(ext_tree, hf_gtp_target_rac, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(ext_tree, hf_gtp_target_ci, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item_ret_uint(ext_tree, hf_gtp_source_type, tvb, offset, 1, ENC_NA, &source_type); offset++; switch (source_type) { case 0: dissect_e212_mcc_mnc(tvb, pinfo, ext_tree, offset, E212_NONE, true); offset += 3; proto_tree_add_item(ext_tree, hf_gtp_source_lac, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(ext_tree, hf_gtp_source_rac, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(ext_tree, hf_gtp_source_ci, tvb, offset, 2, ENC_BIG_ENDIAN); break; case 1: dissect_e212_mcc_mnc(tvb, pinfo, ext_tree, offset, E212_NONE, true); offset += 3; proto_tree_add_item(ext_tree, hf_gtp_source_lac, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(ext_tree, hf_gtp_source_rac, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(ext_tree, hf_gtp_source_rnc_id, tvb, offset, 2, ENC_BIG_ENDIAN); break; default: proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_source_type_unknown, tvb, offset-1, 1); break; } return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.74 * PDU Numbers */ static int decode_gtp_pdu_no(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_PDU_NO], NULL, val_to_str_ext_const(GTP_EXT_PDU_NO, >pv1_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; proto_tree_add_item(ext_tree, hf_gtp_nsapi, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_sequence_number_down, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(ext_tree, hf_gtp_sequence_number_up, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; /* The Send N-PDU Number is used only when acknowledged peer-to-peer LLC * operation is used for the PDP context. Send N-PDU Number is the N-PDU * number to be assigned by SNDCP to the next down link N-PDU received from * the GGSN. * * The Receive N-PDU Number is used only when acknowledged peer-to-peer LLC * operation is used for the PDP context. The Receive N-PDU Number is the * N-PDU number expected by SNDCP from the next up link N-PDU to be * received from the MS. * * XXX: For some reason, 2 octets are reserved for each the Send and * Receive N-PDU numbers, even though an N-PDU number in acknowledged * mode only has values 0-255 (see 3GPP TS 44.065) and is in a one * octet field in the PDP Context IE (7.7.29). Assume, in the lack * of other guidance, that the first octet will be zero and the value * will be in the second octet. * Cf. 7.7.51 ULI, where there is an explicit note in TS 29.060 that only * the first octet contains the RAC and the second octet is filler. */ proto_tree_add_item(ext_tree, hf_gtp_send_n_pdu_number, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(ext_tree, hf_gtp_receive_n_pdu_number, tvb, offset, 2, ENC_BIG_ENDIAN); return 3 + length; } /* GPRS: ? * UMTS: 29.060 v6.11.0, chapter 7.7.75 * BSSGP Cause */ static int decode_gtp_bssgp_cause(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_BSSGP_CAUSE], NULL, val_to_str_ext_const(GTP_EXT_BSSGP_CAUSE, >pv1_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* * The BSSGP Cause information element contains the cause as defined in 3GPP TS 48.018 */ proto_tree_add_item(ext_tree, hf_gtp_bssgp_cause, tvb, offset, 1, ENC_BIG_ENDIAN); return 3 + length; } /* * Required MBMS bearer capabilities 7.7.76 */ static int decode_gtp_mbms_bearer_cap(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_REQ_MBMS_BEARER_CAP], NULL, val_to_str_ext_const(GTP_EXT_REQ_MBMS_BEARER_CAP, >pv1_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); #if 0 /* Fix Dead Store Warning */ offset = offset + 2; #endif /* The payload shall be encoded as per the * Required-MBMS-Bearer-Capabilities AVP defined in 3GPP TS 29.061 [27], * excluding the AVP Header fields (as defined in IETF RFC 3588 [36], section 4.1). */ /* TODO Add decoding (call Diameter dissector???) */ return 3 + length; } /* * RIM Routing Address Discriminator 7.7.77 */ static const value_string gtp_bssgp_ra_discriminator_vals[] = { { 0, "A Cell Identifier is used to identify a GERAN cell" }, { 1, "A Global RNC-ID is used to identify a UTRAN RNC" }, { 2, "An eNB identifier is used to identify an E-UTRAN eNodeB or HeNB" }, { 0, NULL } }; static int decode_gtp_rim_ra_disc(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; uint32_t val; gtp_private_data_t *gtp_data = gtp_get_private_data(pinfo); length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_RIM_ROUTING_ADDR_DISC], NULL, val_to_str_ext_const(GTP_EXT_RIM_ROUTING_ADDR_DISC, >pv1_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* Octet 4 bits 4 - 1 is coded according to 3GPP TS 48.018 [20] * RIM Routing Information IE octet 3 bits 4 - 1. * Bits 8 - 5 are coded "0000". */ proto_tree_add_item_ret_uint(ext_tree, hf_gtp_bssgp_ra_discriminator, tvb, offset, 1, ENC_BIG_ENDIAN, &val); gtp_data->rim_routing_addr_disc = (int8_t)val; return 3 + length; } /* * List of set-up PFCs 7.7.78 */ static int decode_gtp_lst_set_up_pfc(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree, *sub_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_LIST_OF_SETUP_PFCS], NULL, val_to_str_ext_const(GTP_EXT_LIST_OF_SETUP_PFCS, >pv1_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; sub_tree = proto_tree_add_subtree(ext_tree, tvb, offset, length, ett_gtp_lst_set_up_pfc, NULL, "List of set-up PFCs"); de_bssgp_list_of_setup_pfcs(tvb, sub_tree, pinfo, offset, length, NULL, 0); return 3 + length; } /* * PS Handover XID Parameters 7.7.79 */ static int decode_gtp_ps_handover_xid(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; tvbuff_t *next_tvb; uint8_t sapi; uint8_t xid_par_len; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_PS_HANDOVER_XIP_PAR], NULL, val_to_str_ext_const(GTP_EXT_PS_HANDOVER_XIP_PAR, >pv1_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; sapi = tvb_get_uint8(tvb, offset) & 0x0F; proto_tree_add_uint(ext_tree, hf_gtp_sapi, tvb, offset, 1, sapi); offset++; xid_par_len = tvb_get_uint8(tvb, offset); proto_tree_add_uint(ext_tree, hf_gtp_xid_par_len, tvb, offset, 1, xid_par_len); offset++; next_tvb = tvb_new_subset_remaining(tvb, offset); if (sndcpxid_handle) call_dissector(sndcpxid_handle, next_tvb, pinfo, tree); else call_data_dissector(next_tvb, pinfo, tree); return 4 + length; } /* * MS Info Change Reporting Action 7.7.80 */ static int decode_gtp_ms_inf_chg_rep_act(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_MS_INF_CHG_REP_ACT], NULL, val_to_str_ext_const(GTP_EXT_MS_INF_CHG_REP_ACT, >pv1_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; proto_tree_add_item(ext_tree, hf_gtp_rep_act_type, tvb, offset, 1, ENC_BIG_ENDIAN); return 3 + length; } /* * Direct Tunnel Flags 7.7.81 */ static int decode_gtp_direct_tnl_flg(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_DIRECT_TUNNEL_FLGS], NULL, val_to_str_ext_const(GTP_EXT_DIRECT_TUNNEL_FLGS, >pv1_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(ext_tree, hf_gtp_ext_ei, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_ext_gcsi, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_ext_dti, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; if (length == 1) { return 3 + length; } proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length); return 3 + length; } /* * Correlation-ID 7.7.82 */ static int decode_gtp_corrl_id(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_CORRELATION_ID], NULL, val_to_str_ext_const(GTP_EXT_CORRELATION_ID, >pv1_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; proto_tree_add_item(ext_tree, hf_gtp_correlation_id, tvb, offset, 1, ENC_BIG_ENDIAN); return 3 + length; } /* * Bearer Control Mode 7.7.83 * version 10.0.0 */ static const value_string gtp_pdp_bcm_type_vals[] = { {0, "MS_only"}, {1, "MS/NW"}, {0, NULL} }; static int decode_gtp_bearer_cntrl_mod(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_BEARER_CONTROL_MODE], NULL, val_to_str_ext_const(GTP_EXT_BEARER_CONTROL_MODE, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; proto_tree_add_item(ext_tree, hf_gtp_bcm, tvb, offset, 1, ENC_BIG_ENDIAN); return 3 + length; } /* * 7.7.84 MBMS Flow Identifier */ static int decode_gtp_mbms_flow_id(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_MBMS_FLOW_ID], NULL, val_to_str_ext_const(GTP_EXT_MBMS_FLOW_ID, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* 4-n MBMS Flow Identifier */ proto_tree_add_item(ext_tree, hf_gtp_mbms_flow_id, tvb, offset, length, ENC_NA); return 3 + length; } /* * 7.7.85 MBMS IP Multicast Distribution */ static int decode_gtp_mbms_ip_mcast_dist(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_MBMS_IP_MCAST_DIST], NULL, val_to_str_ext_const(GTP_EXT_MBMS_IP_MCAST_DIST, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length); return 3 + length; } /* * 7.7.86 MBMS Distribution Acknowledgement */ /* Table 7.7.86.1: Distribution Indication values */ static const value_string gtp_mbms_dist_indic_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 int decode_gtp_mbms_dist_ack(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_MBMS_DIST_ACK], NULL, val_to_str_ext_const(GTP_EXT_MBMS_DIST_ACK, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* Distribution Indication values */ proto_tree_add_item(ext_tree, hf_gtp_mbms_dist_indic, tvb, offset, 1, ENC_BIG_ENDIAN); return 3 + length; } /* * 7.7.87 Reliable INTER RAT HANDOVER INFO */ static int decode_gtp_reliable_irat_ho_inf(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_RELIABLE_IRAT_HO_INF], NULL, val_to_str_ext_const(GTP_EXT_RELIABLE_IRAT_HO_INF, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length); return 3 + length; } /* * 7.7.88 RFSP Index */ static int decode_gtp_rfsp_index(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_RFSP_INDEX], NULL, val_to_str_ext_const(GTP_EXT_RFSP_INDEX, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; proto_tree_add_item(ext_tree, hf_gtp_rfsp_index, tvb, offset, 2, ENC_BIG_ENDIAN); return 3 + length; } /* * 7.7.89 PDP Type */ /* * 7.7.90 Fully Qualified Domain Name (FQDN) */ static int decode_gtp_fqdn(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, length + 3, ett_gtp_ies[GTP_EXT_FQDN], NULL, val_to_str_ext_const(GTP_EXT_FQDN, >p_val_ext, "Unknown field")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_fqdn_length, tvb, offset + 1, 2, ENC_BIG_ENDIAN); decode_fqdn(tvb, offset + 3, length, ext_tree, NULL); return 3 + length; } /* * 7.7.91 Evolved Allocation/Retention Priority I */ static int decode_gtp_evolved_allc_rtn_p1(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_EVO_ALLO_RETE_P1], NULL, val_to_str_ext_const(GTP_EXT_EVO_ALLO_RETE_P1, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(ext_tree, hf_gtp_earp_pci, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_earp_pl, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_earp_pvi, tvb, offset, 1, ENC_BIG_ENDIAN); return 3 + length; } /* * 7.7.92 Evolved Allocation/Retention Priority II */ static int decode_gtp_evolved_allc_rtn_p2(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_EVO_ALLO_RETE_P2], NULL, val_to_str_ext_const(GTP_EXT_EVO_ALLO_RETE_P2, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; proto_tree_add_item(ext_tree, hf_gtp_nsapi, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_earp_pci, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_earp_pl, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_earp_pvi, tvb, offset, 1, ENC_BIG_ENDIAN); return 3 + length; } /* * 7.7.93 Extended Common Flags */ static int decode_gtp_extended_common_flgs(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_EXTENDED_COMMON_FLGS], NULL, val_to_str_ext_const(GTP_EXT_EXTENDED_COMMON_FLGS, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; proto_tree_add_item(ext_tree, hf_gtp_ext_comm_flags_uasi, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_ext_comm_flags_bdwi, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_ext_comm_flags_pcri, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_ext_comm_flags_vb, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_ext_comm_flags_retloc, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_ext_comm_flags_cpsr, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_ext_comm_flags_ccrsi, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_ext_comm_flags_unauthenticated_imsi, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; if(length > 1){ proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length-1); } return 3 + length; } /* * 7.7.94 User CSG Information (UCI) */ static const value_string gtp_access_mode_vals[] = { { 0, "Closed Mode" }, { 1, "Hybrid Mode" }, { 2, "Reserved" }, { 3, "Reserved" }, { 0, NULL } }; static int decode_gtp_uci(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_UCI], NULL, val_to_str_ext_const(GTP_EXT_UCI, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; dissect_e212_mcc_mnc(tvb, pinfo, ext_tree, offset, E212_NONE, true); offset += 3; proto_tree_add_item(ext_tree, hf_gtp_csg_id, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; proto_tree_add_item(ext_tree, hf_gtp_access_mode, tvb, offset, 1, ENC_BIG_ENDIAN); /* Due to a specification oversight, the CMI values ... are reversed from * the values of the CSG-Membership-Indication AVP in 3GPP TS 32.299 [56]. * Therefore, when CMI values are sent over the charging interface, the * values are encoded as specified in 3GPP TS 32.299 [56]. Furthermore, * the encoding is different between GTPv1 and GTPv2. */ proto_tree_add_item(ext_tree, hf_gtp_cmi, tvb, offset, 1, ENC_BIG_ENDIAN); return 3 + length; } /* * 7.7.95 CSG Information Reporting Action */ static int decode_gtp_csg_inf_rep_act(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; static int * const flags[] = { &hf_gtp_csg_inf_rep_act_uciuhc, &hf_gtp_csg_inf_rep_act_ucishc, &hf_gtp_csg_inf_rep_act_ucicsg, NULL }; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_CSG_INF_REP_ACT], NULL, val_to_str_ext_const(GTP_EXT_CSG_INF_REP_ACT, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; proto_tree_add_bitmask_list(ext_tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); return 3 + length; } /* * 7.7.96 CSG ID */ static int decode_gtp_csg_id(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_CSG_ID], NULL, val_to_str_ext_const(GTP_EXT_CSG_ID, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length); return 3 + length; } /* * 7.7.97 CSG Membership Indication (CMI) */ static int decode_gtp_cmi(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_CMI], NULL, val_to_str_ext_const(GTP_EXT_CMI, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* Due to a specification oversight, the CMI values ... are reversed from * the values of the CSG-Membership-Indication AVP in 3GPP TS 32.299 [56]. * Therefore, when CMI values are sent over the charging interface, the * values are encoded as specified in 3GPP TS 32.299 [56]. */ proto_tree_add_item(ext_tree, hf_gtp_cmi, tvb, offset, 1, ENC_BIG_ENDIAN); return 3 + length; } /* * 7.7.98 APN Aggregate Maximum Bit Rate (APN-AMBR) */ static int decode_gtp_apn_ambr(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_RELIABLE_IRAT_HO_INF], NULL, val_to_str_ext_const(GTP_EXT_AMBR, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* APN Aggregate Maximum Bit Rate (APN-AMBR) is defined in clause 9.9.4.2 of 3GPP TS 24.301 [42], but shall be * formatted as shown in Figure 7.7.98-1 as Unsigned32 binary integer values in kbps (1000 bits per second). */ /* 4 to 7 APN-AMBR for Uplink */ proto_tree_add_item(ext_tree, hf_gtp_ext_apn_ambr_ul, tvb, offset, 4, ENC_BIG_ENDIAN); offset+=4; /* 8 to 11 APN-AMBR for Downlink */ proto_tree_add_item(ext_tree, hf_gtp_ext_apn_ambr_dl, tvb, offset, 4, ENC_BIG_ENDIAN); return 3 + length; } /* * 7.7.99 UE Network Capability */ static int decode_gtp_ue_network_cap(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_UE_NETWORK_CAP], NULL, val_to_str_ext_const(GTP_EXT_UE_NETWORK_CAP, >pv1_val_ext, "Unknown")); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; de_emm_ue_net_cap(tvb, ext_tree, pinfo, offset, length, NULL, 0); return 3 + length; } /* * 7.7.100 UE-AMBR */ static int decode_gtp_ue_ambr(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_UE_AMBR], NULL, val_to_str_ext_const(GTP_EXT_UE_AMBR, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* 4 to 7 Subscribed UE-AMBR for Uplink */ proto_tree_add_item(ext_tree, hf_gtp_ext_sub_ue_ambr_ul, tvb, offset, 4, ENC_BIG_ENDIAN); offset+=4; /* 8 to 11 Subscribed UE-AMBR for Downlink */ proto_tree_add_item(ext_tree, hf_gtp_ext_sub_ue_ambr_dl, tvb, offset, 4, ENC_BIG_ENDIAN); offset+=4; /* Authorized UE-AMBR for Uplink and Downlink fields are present in the IE only if the sender has their valid values * available. Otherwise, the fields from m to (n+3) shall not be present. */ if (length > 8) { /* m to (m+3) Authorized UE-AMBR for Uplink */ proto_tree_add_item(ext_tree, hf_gtp_ext_auth_ue_ambr_ul, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; /* (m+4) to (n+3) Authorized UE-AMBR for Downlink */ proto_tree_add_item(ext_tree, hf_gtp_ext_auth_ue_ambr_dl, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; } if (length > 16) { proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length - 16); } return 3 + length; } /* * 7.7.101 APN-AMBR with NSAPI */ static int decode_gtp_apn_ambr_with_nsapi(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_APN_AMBR_WITH_NSAPI], NULL, val_to_str_ext_const(GTP_EXT_APN_AMBR_WITH_NSAPI, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; proto_tree_add_item(ext_tree, hf_gtp_nsapi, tvb, offset + 1, 1, ENC_BIG_ENDIAN); offset++; /* 5 to 8 Authorized APN-AMBR for Uplink */ proto_tree_add_item(ext_tree, hf_gtp_ext_auth_apn_ambr_ul, tvb, offset, 4, ENC_BIG_ENDIAN); offset+=4; /* 9 to12 Authorized APN-AMBR for Downlink */ proto_tree_add_item(ext_tree, hf_gtp_ext_auth_apn_ambr_dl, tvb, offset, 4, ENC_BIG_ENDIAN); return 3 + length; } /* * 7.7.102 GGSN Back-Off Time */ /* Table 7.7.102.1: GGSN Back-Off Time information element */ static const value_string gtp_ggsn_back_off_time_units_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 hours"}, {5, "value indicates that the timer is infinite"}, {0, NULL} }; static int decode_gtp_ggsn_back_off_time(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_GGSN_BACK_OFF_TIME], NULL, val_to_str_ext_const(GTP_EXT_GGSN_BACK_OFF_TIME, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; /* 4 Timer unit Timer value */ proto_tree_add_item(ext_tree, hf_gtp_ext_ggsn_back_off_time_units, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_ext_ggsn_back_off_timer, tvb, offset, 1, ENC_BIG_ENDIAN); return 3 + length; } /* * 7.7.103 Signalling Priority Indication */ static const true_false_string gtp_lapi_tfs = { "MS is configured for NAS signalling low priority", "MS is not configured for NAS signalling low priority" }; static int decode_gtp_sig_pri_ind(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_SIG_PRI_IND], NULL, val_to_str_ext_const(GTP_EXT_SIG_PRI_IND, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(ext_tree, hf_gtp_lapi, tvb, offset, 1, ENC_NA); return 3 + length; } /* * 7.7.104 Signalling Priority Indication with NSAPI */ static int decode_gtp_sig_pri_ind_w_nsapi(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_SIG_PRI_IND_W_NSAPI], NULL, val_to_str_ext_const(GTP_EXT_SIG_PRI_IND_W_NSAPI, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(ext_tree, hf_gtp_nsapi, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_lapi, tvb, offset, 1, ENC_NA); return 3 + length; } /* * 7.7.105 Higher bitrates than 16 Mbps flag */ static const value_string gtp_higher_br_16mb_flg_vals[] = { {0, "Not allowed"}, {1, "Allowed"}, {0, NULL} }; static int decode_gtp_higher_br_16mb_flg(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_HIGHER_BR_16MB_FLG], NULL, val_to_str_ext_const(GTP_EXT_HIGHER_BR_16MB_FLG, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; /* Higher bitrates than 16 Mbps flag */ proto_tree_add_item(ext_tree, hf_gtp_higher_br_16mb_flg, tvb, offset, 1, ENC_BIG_ENDIAN); return 3 + length; } /* * 7.7.106 Max MBR/APN-AMBR */ static int decode_gtp_max_mbr_apn_ambr(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; uint32_t max_ul; uint32_t max_dl; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_MAX_MBR_APN_AMBR], NULL, val_to_str_ext_const(GTP_EXT_MAX_MBR_APN_AMBR, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* Max MBR/APN-AMBR for uplink */ max_ul = tvb_get_ntohl(tvb, offset); proto_tree_add_uint_format_value(ext_tree, hf_gtp_max_mbr_apn_ambr_ul, tvb, offset, 4, max_ul, "%u %s", (max_ul) > 1000 ? max_ul/1000 : max_ul, (max_ul) > 1000 ? "Mbps" : "kbps"); offset += 4; /* Max MBR/APN-AMBR for downlink */ max_dl = tvb_get_ntohl(tvb, offset); proto_tree_add_uint_format_value(ext_tree, hf_gtp_max_mbr_apn_ambr_dl, tvb, offset, 4, max_dl, "%u %s", (max_dl) > 1000 ? max_dl/1000 : max_dl, (max_dl) > 1000 ? "Mbps" : "kbps"); return 3 + length; } /* * 7.7.107 Additional MM context for SRVCC */ static int decode_gtp_add_mm_ctx_srvcc(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; uint32_t inf_len; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_ADD_MM_CTX_SRVCC], NULL, val_to_str_ext_const(GTP_EXT_ADD_MM_CTX_SRVCC, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; /* Length of the Mobile Station Classmark 2 */ proto_tree_add_item_ret_uint(ext_tree, hf_gtp_ms_cm_2_len, tvb, offset, 1, ENC_BIG_ENDIAN, &inf_len); offset++; if (inf_len > 0) { offset += de_ms_cm_2(tvb, ext_tree, pinfo, offset, inf_len, NULL, 0); } /* Length of the Mobile Station Classmark 3 */ proto_tree_add_item_ret_uint(ext_tree, hf_gtp_ms_cm_3_len, tvb, offset, 1, ENC_BIG_ENDIAN, &inf_len); offset++; if (inf_len > 0) { offset += de_ms_cm_3(tvb, ext_tree, pinfo, offset, inf_len, NULL, 0); } /* Length of the Supported Codec List */ proto_tree_add_item_ret_uint(ext_tree, hf_gtp_sup_codec_lst_len, tvb, offset, 1, ENC_BIG_ENDIAN, &inf_len); offset++; if (inf_len > 0) { de_sup_codec_list(tvb, ext_tree, pinfo, offset, inf_len, NULL, 0); } return 3 + length; } /* * 7.7.108 Additional flags for SRVCC */ static int decode_gtp_add_flgs_srvcc(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_ADD_FLGS_SRVCC], NULL, val_to_str_ext_const(GTP_EXT_ADD_FLGS_SRVCC, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; /* 4 Spare ICS */ proto_tree_add_item(ext_tree, hf_gtp_add_flg_for_srvcc_ics, tvb, offset, 1, ENC_BIG_ENDIAN); return 3 + length; } /* * 7.7.109 STN-SR */ static int decode_gtp_stn_sr(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_STN_SR], NULL, val_to_str_ext_const(GTP_EXT_STN_SR, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length); return 3 + length; } /* * 7.7.110 C-MSISDN */ static int decode_gtp_c_msisdn(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_C_MSISDN], NULL, val_to_str_ext_const(GTP_EXT_C_MSISDN, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; dissect_e164_msisdn(tvb, ext_tree, offset, length, E164_ENC_BCD); return 3 + length; } /* * 7.7.111 Extended RANAP Cause */ static int decode_gtp_ext_ranap_cause(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; tvbuff_t *new_tvb; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_EXT_RANAP_CAUSE], NULL, val_to_str_ext_const(GTP_EXT_EXT_RANAP_CAUSE, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; new_tvb = tvb_new_subset_remaining(tvb, offset); dissect_ranap_Cause_PDU(new_tvb, pinfo, ext_tree, NULL); return 3 + length; } /* * 7.7.112 eNodeB ID */ static const value_string gtp_enb_type_vals[] = { { 0, "Macro eNodeB ID" }, { 1, "Home eNodeB ID" }, { 0, NULL } }; static int decode_gtp_ext_enodeb_id(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; uint32_t enb_type; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_ENODEB_ID], NULL, val_to_str_ext_const(GTP_EXT_ENODEB_ID, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; /* eNodeB Type */ proto_tree_add_item_ret_uint(ext_tree, hf_gtp_ext_enb_type, tvb, offset, 1, ENC_BIG_ENDIAN, &enb_type); offset++; dissect_e212_mcc_mnc(tvb, pinfo, ext_tree, offset, E212_NONE, true); offset += 3; switch (enb_type){ case 0: /* Macro eNodeB ID */ proto_tree_add_item(ext_tree, hf_gtp_macro_enodeb_id, tvb, offset, 3, ENC_BIG_ENDIAN); offset += 3; proto_tree_add_item(ext_tree, hf_gtp_tac, tvb, offset, 2, ENC_BIG_ENDIAN); break; case 1: /* Home eNodeB ID */ proto_tree_add_item(ext_tree, hf_gtp_home_enodeb_id, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; proto_tree_add_item(ext_tree, hf_gtp_tac, tvb, offset, 2, ENC_BIG_ENDIAN); break; default: proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length - 4); break; } return 3 + length; } /* * 7.7.113 Selection Mode with NSAPI */ static const value_string gtp_sel_mode_vals[] = { { 0, "MS or network provided APN, subscription verified" }, { 1, "MS provided APN, subscription not verified" }, { 2, "Network provided APN, subscription not verified" }, { 3, "For future use. Shall not be sent. If received, shall be interpreted as the value 2" }, { 0, NULL } }; static int decode_gtp_ext_sel_mode_w_nsapi(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_SEL_MODE_W_NSAPI], NULL, val_to_str_ext_const(GTP_EXT_SEL_MODE_W_NSAPI, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(ext_tree, hf_gtp_nsapi, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_sel_mode_val, tvb, offset, 1, ENC_BIG_ENDIAN); return 3 + length; } /* * 7.7.114 ULI Timestamp */ static int decode_gtp_ext_uli_timestamp(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_ULI_TIMESTAMP], NULL, val_to_str_ext_const(GTP_EXT_ULI_TIMESTAMP, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(ext_tree, hf_gtp_uli_timestamp, tvb, offset, 4, ENC_TIME_SECS_NTP|ENC_BIG_ENDIAN); return 3 + length; } /* * 7.7.115 Local Home Network ID (LHN-ID) with NSAPI */ static int decode_gtp_ext_lhn_id_w_sapi(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_LHN_ID_W_SAPI], NULL, val_to_str_ext_const(GTP_EXT_LHN_ID_W_SAPI, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(ext_tree, hf_gtp_nsapi, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(ext_tree, hf_gtp_lhn_id, tvb, offset, length, ENC_APN_STR|ENC_NA); return 3 + length; } /* * 7.7.116 CN Operator Selection Entity */ static const value_string gtp_sel_entity_vals[] = { { 0, "The Serving Network has been selected by the UE"}, { 1, "The Serving Network has been selected by the network"}, { 2, "For future use"}, { 3, "For future use"}, { 0, NULL}, }; static int decode_gtp_ext_cn_op_sel_entity(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_CN_OP_SEL_ENTITY], NULL, val_to_str_ext_const(GTP_EXT_CN_OP_SEL_ENTITY, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(ext_tree, hf_gtp_sel_entity, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; if (length > 1) { proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length - 1); } return 3 + length; } /* * 7.7.117 UE Usage Type */ static int decode_gtp_ue_usage_type(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_UE_USAGE_TYPE], NULL, val_to_str_ext_const(GTP_EXT_UE_USAGE_TYPE, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(ext_tree, hf_gtp_ue_usage_type_value, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; if (length > 4) { proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length - 4); } return 3 + length; } /* * 7.7.118 Extended Common Flags II */ static int decode_gtp_extended_common_flgs_II(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_EXT_COMMON_FLGS_II], NULL, val_to_str_ext_const(GTP_EXT_EXT_COMMON_FLGS_II, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; proto_tree_add_item(ext_tree, hf_gtp_ext_comm_flags_II_pnsi, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_ext_comm_flags_II_dtci, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_ext_comm_flags_II_pmtsmi, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_ext_comm_flags_II_spare, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; if(length > 1){ proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length-1); } return 3 + length; } /* * 7.7.119 Node Identifier */ static int decode_gtp_ext_node_id(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; uint32_t item_len; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_NODE_IDENTIFIER], NULL, val_to_str_ext_const(GTP_EXT_NODE_IDENTIFIER, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; /* The Node Name and Node Realm are Diameter Identities, which are * specified by RFC 6733 to be in ASCII for compatibility with DNS. */ proto_tree_add_item_ret_length(ext_tree, hf_gtp_node_name, tvb, offset, 1, ENC_ASCII | ENC_NA, &item_len); offset += item_len; proto_tree_add_item_ret_length(ext_tree, hf_gtp_node_realm, tvb, offset, 1, ENC_ASCII | ENC_NA, &item_len); return 3 + length; } /* * 7.7.120 CIoT Optimizations Support Indication */ static int decode_gtp_ciot_opt_sup_ind(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_CIOT_OPT_SUP_IND], NULL, val_to_str_ext_const(GTP_EXT_CIOT_OPT_SUP_IND, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(ext_tree, hf_gtp_ciot_opt_sup_ind_sgni_pdn, tvb, offset, 1, ENC_NA); proto_tree_add_item(ext_tree, hf_gtp_ciot_opt_sup_ind_scni_pdn, tvb, offset, 1, ENC_NA); proto_tree_add_item(ext_tree, hf_gtp_ciot_opt_sup_ind_spare, tvb, offset, 1, ENC_NA); offset++; if (length > 1) { proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length - 1); } return 3 + length; } /* * 7.7.121 SCEF PDN Connection */ static int decode_gtp_scef_pdn_conn(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; uint32_t apn_length, scef_id_length; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_SCEF_PDN_CONNECTION], NULL, val_to_str_ext_const(GTP_EXT_SCEF_PDN_CONNECTION, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item_ret_uint(ext_tree, hf_gtp_apn_length, tvb, offset, 1, ENC_NA, &apn_length); decode_apn(pinfo, tvb, offset + 1, (uint16_t)apn_length, ext_tree, NULL); offset += 1 + apn_length; proto_tree_add_item(ext_tree, hf_gtp_nsapi, tvb, offset, 1, ENC_NA); offset++; proto_tree_add_item_ret_uint(ext_tree, hf_gtp_scef_id_length, tvb, offset, 2, ENC_BIG_ENDIAN, &scef_id_length); offset += 2; proto_tree_add_item(ext_tree, hf_gtp_scef_id, tvb, offset, scef_id_length, ENC_ASCII); offset += scef_id_length; if (length > 4 + apn_length + scef_id_length) { proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length - (4 + apn_length + scef_id_length)); } return 3 + length; } /* * 7.7.122 IOV_updates counter */ static int decode_gtp_iov_updates_counter(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_IOV_UPDATES_COUNTER], NULL, val_to_str_ext_const(GTP_EXT_IOV_UPDATES_COUNTER, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(ext_tree, hf_gtp_iov_updates_counter, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; if (length > 1) { proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length - 1); } return 3 + length; } /* * 7.7.123 Mapped UE Usage Type */ static int decode_gtp_mapped_ue_usage_type(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_MAPPED_UE_USAGE_TYPE], NULL, val_to_str_ext_const(GTP_EXT_MAPPED_UE_USAGE_TYPE, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(ext_tree, hf_gtp_mapped_ue_usage_type, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; if (length > 2) { proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length - 2); } return 3 + length; } /* * 7.7.124 UP Function Selection Indication Flags */ static int decode_gtp_up_fun_sel_ind_flags(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree; length = tvb_get_ntohs(tvb, offset + 1); ext_tree = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_ies[GTP_EXT_UP_FUN_SEL_IND_FLAGS], NULL, val_to_str_ext_const(GTP_EXT_UP_FUN_SEL_IND_FLAGS, >pv1_val_ext, "Unknown")); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(ext_tree, hf_gtp_up_fun_sel_ind_flags_dcnr, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_up_fun_sel_ind_flags_spare, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; if (length > 1) { proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length - 1); } return 3 + length; } static int decode_gtp_rel_pack(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length, n, number; proto_tree *ext_tree_rel_pack; length = tvb_get_ntohs(tvb, offset + 1); ext_tree_rel_pack = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_rel_pack, NULL, "Sequence numbers of released packets IE"); n = 0; while (n < length) { number = tvb_get_ntohs(tvb, offset + 3 + n); proto_tree_add_uint_format(ext_tree_rel_pack, hf_gtp_seq_num_released, tvb, offset + 3 + n, 2, number, "%u", number); n = n + 2; } return 3 + length; } /* GPRS: 12.15 * UMTS: 33.015 */ static int decode_gtp_can_pack(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length, n, number; proto_tree *ext_tree_can_pack; length = tvb_get_ntohs(tvb, offset + 1); ext_tree_can_pack = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_can_pack, NULL, "Sequence numbers of cancelled packets IE"); n = 0; while (n < length) { number = tvb_get_ntohs(tvb, offset + 3 + n); proto_tree_add_uint_format(ext_tree_can_pack, hf_gtp_seq_num_canceled, tvb, offset + 3 + n, 2, number, "%u", number); n += 2; } return 3 + length; } /* CDRs dissector * 3GPP TS 32.295 version 9.0.0 Release 9 */ static const value_string gtp_cdr_fmt_vals[] = { {1, "Basic Encoding Rules (BER)"}, {2, "Unaligned basic Packed Encoding Rules (PER)"}, {3, "Aligned basic Packed Encoding Rules (PER)"}, {0, NULL} }; static int decode_gtp_data_req(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t length, cdr_length; uint8_t no, format, app_id, rel_id, ver_id, i; bool rel_id_zero = false; proto_tree *ext_tree, *ver_tree, *cdr_dr_tree; proto_item *fmt_item; tvbuff_t *next_tvb; ext_tree = proto_tree_add_subtree(tree, tvb, offset, 1, ett_gtp_ext, NULL, val_to_str_ext_const(GTP_EXT_DATA_REQ, >p_val_ext, "Unknown message")); offset++; length = tvb_get_ntohs(tvb, offset); proto_tree_add_uint(ext_tree, hf_gtp_length, tvb, offset, 2, length); offset+=2; if (length == 0) { return 3; } /* Octet 4 Number of Data Records */ no = tvb_get_uint8(tvb, offset); proto_tree_add_item(ext_tree, hf_gtp_number_of_data_records, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; /* Octet 5 Data Record Format */ format = tvb_get_uint8(tvb, offset); fmt_item = proto_tree_add_item(ext_tree, hf_gtp_data_record_format, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; /* The value range is 1-255 in decimal. The value '0' should not be used. * Only the values 1-10 and 51-255 can be used for standards purposes. * Values in the range of 11-50 are to be configured only by operators, and are not subject to standardization. */ if(format < 4) { proto_item_append_text(fmt_item, " %s", val_to_str_const(format, gtp_cdr_fmt_vals, "Unknown")); /* Octet 6 -7 Data Record Format Version * 8 7 6 5 4 3 2 1 * 6 Application Identifier Release Identifier * 7 Version Identifier * * New with Release 15 and higher: * 8 Release Identifier Extension * The Release Identifier indicates the TS release up to and including * 15. The Release Identifier Extension indicates TS releases above 15, * in this case the Release Identifier has a value of '0' (decimal) */ app_id = tvb_get_uint8(tvb,offset); rel_id = app_id & 0x0f; app_id = app_id >>4; ver_id = tvb_get_uint8(tvb,offset+1); if (rel_id == 0) { rel_id_zero = true; rel_id = tvb_get_uint8(tvb,offset+2); } /* The second octet (#7 in Data Record Packet IE) identifies the version of the TS used to encode the CDR, * i.e. its value corresponds to the second digit of the version number of the document [51] * (as shown on the cover sheet), plus '1'. * E.g. for version 3.4.0, the Version Identifier would be "5". * In circumstances where the second digit is an alphabetical character, (e.g. 3.b.0), the corresponding ASCII value shall * be taken, e.g. the Version Identifier would be "66" (ASCII(b)). */ if(ver_id < 0x65) ver_id = ver_id -1; /* XXX We don't handle ASCCI version */ ver_tree = proto_tree_add_subtree_format(ext_tree, tvb, offset, (rel_id_zero || rel_id == 15) ? 3 : 2, ett_gtp_cdr_ver, NULL, "Data record format version: AppId %u Rel %u.%u.0", app_id,rel_id,ver_id); proto_tree_add_item(ver_tree, hf_gtp_cdr_app, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ver_tree, hf_gtp_cdr_rel, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ver_tree, hf_gtp_cdr_ver, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; if(rel_id_zero) { /* The Release Identifier indicates the TS release up to and including 15. * The Release Identifier Extension indicates TS releases above 15, * in this case the Release Identifier has a value of '0' (decimal). */ fmt_item = proto_tree_add_item(ver_tree, hf_gtp_cdr_rel_ext, tvb, offset, 1, ENC_NA); offset++; if(rel_id < 16) { expert_add_info(pinfo, fmt_item, &ei_gtp_cdr_rel_ext_invalid); } } for(i = 0; i < no; ++i) { cdr_length = tvb_get_ntohs(tvb, offset); cdr_dr_tree = proto_tree_add_subtree_format(ext_tree, tvb, offset, cdr_length+2, ett_gtp_cdr_dr, NULL, "Data record %d", i + 1); proto_tree_add_uint(cdr_dr_tree, hf_gtp_cdr_length, tvb, offset, 2, cdr_length); offset+=2; proto_tree_add_item(cdr_dr_tree, hf_gtp_cdr_context, tvb, offset, cdr_length, ENC_NA); next_tvb = tvb_new_subset_remaining(tvb, offset); /* XXX this is for release 6, may not work for higher releases */ if(format==1) { if(rel_id <= 6){ dissect_gprscdr_GPRSCallEventRecord_PDU(next_tvb, pinfo, cdr_dr_tree, NULL); }else{ dissect_gprscdr_GPRSRecord_PDU(next_tvb, pinfo, cdr_dr_tree, NULL); } } else { /* Do we have a dissector registering for this data format? */ dissector_try_uint(gtp_cdr_fmt_dissector_table, format, next_tvb, pinfo, cdr_dr_tree); } offset = offset + cdr_length; } } else { /* Proprietary CDR format */ proto_item_append_text(fmt_item, " Proprietary or un documented format"); } if (gtpcdr_handle) { next_tvb = tvb_new_subset_remaining(tvb, offset); call_dissector(gtpcdr_handle, next_tvb, pinfo, tree); } return 3 + length; } /* GPRS: 12.15 * UMTS: 33.015 */ static int decode_gtp_data_resp(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length, n, number; proto_tree *ext_tree_data_resp; length = tvb_get_ntohs(tvb, offset + 1); ext_tree_data_resp = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_data_resp, NULL, "Requests responded"); n = 0; while (n < length) { number = tvb_get_ntohs(tvb, offset + 3 + n); proto_tree_add_uint_format(ext_tree_data_resp, hf_gtp_requests_responded, tvb, offset + 3 + n, 2, number, "%u", number); n = n + 2; } return 3 + length; } /* GPRS: 12.15 * UMTS: 33.015 */ static int decode_gtp_node_addr(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_) { uint16_t length; proto_tree *ext_tree_node_addr; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); ext_tree_node_addr = proto_tree_add_subtree(tree, tvb, offset, 3 + length, ett_gtp_node_addr, &te, "Node address: "); proto_tree_add_item(ext_tree_node_addr, hf_gtp_node_address_length, tvb, offset + 1, 2, ENC_BIG_ENDIAN); switch (length) { case 4: proto_tree_add_item(ext_tree_node_addr, hf_gtp_node_ipv4, tvb, offset + 3, 4, ENC_BIG_ENDIAN); proto_item_append_text(te, "%s", tvb_ip_to_str(pinfo->pool, tvb, offset + 3)); break; case 16: proto_tree_add_item(ext_tree_node_addr, hf_gtp_node_ipv6, tvb, offset + 3, 16, ENC_NA); proto_item_append_text(te, "%s", tvb_ip6_to_str(pinfo->pool, tvb, offset + 3)); break; default: proto_item_append_text(te, "unknown type or wrong length"); break; } return 3 + length; } /* GPRS: 9.60 v7.6.0, chapter 7.9.26 * UMTS: 29.060 v4.0, chapter 7.7.46 Private Extension * */ static int decode_gtp_priv_ext(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { uint16_t length, ext_id; proto_tree *ext_tree_priv_ext; proto_item *te; tvbuff_t *next_tvb; ext_tree_priv_ext = proto_tree_add_subtree_format(tree, tvb, offset, 1, ett_gtp_ext, &te, "%s : ", val_to_str_ext_const(GTP_EXT_PRIV_EXT, >p_val_ext, "Unknown message")); offset++; length = tvb_get_ntohs(tvb, offset); proto_tree_add_item(ext_tree_priv_ext, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; if (length >= 2) { ext_id = tvb_get_ntohs(tvb, offset); proto_tree_add_uint(ext_tree_priv_ext, hf_gtp_ext_id, tvb, offset, 2, ext_id); proto_item_append_text(te, "%s (%u)", enterprises_lookup(ext_id, "Unknown"), ext_id); offset = offset + 2; if (length > 2) { next_tvb = tvb_new_subset_length(tvb, offset, length-2); if(!dissector_try_uint(gtp_priv_ext_dissector_table, ext_id, next_tvb, pinfo, ext_tree_priv_ext)){ proto_tree_add_item(ext_tree_priv_ext, hf_gtp_ext_val, tvb, offset, length - 2, ENC_NA); } } } return 3 + length; } static int decode_gtp_unknown(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_) { proto_tree_add_expert(tree, pinfo, &ei_gtp_unknown_extension_header, tvb, offset, 1); return tvb_reported_length_remaining(tvb, offset); } static void track_gtp_session(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, gtp_hdr_t * gtp_hdr, wmem_list_t *teid_list, wmem_list_t *ip_list, uint32_t last_teid, address last_ip) { uint32_t session, frame_teid_cp; proto_item *it; /* GTP session */ if (tree) { session = GPOINTER_TO_UINT(wmem_map_lookup(session_table, GUINT_TO_POINTER(pinfo->num))); if (session) { it = proto_tree_add_uint(tree, hf_gtp_session, tvb, 0, 0, session); proto_item_set_generated(it); } } if (!PINFO_FD_VISITED(pinfo) && gtp_version == 1) { /* If the message does not have any session ID */ session = GPOINTER_TO_UINT(wmem_map_lookup(session_table, GUINT_TO_POINTER(pinfo->num))); if (!session) { /* If the message is not a CPDPCRES, CPDPCREQ, UPDPREQ, UPDPRES * then we remove its information from teid and ip lists * XXX: Wouldn't it be better not to insert this information * in the first place for other message types, instead of * inserting it and then immediately removing it? * At the very least, it would be faster to iterate through the * teid_list and ip_list and remove via keys rather than doing * removal through a reverse lookup. */ if ((gtp_hdr->message != GTP_MSG_CREATE_PDP_RESP && gtp_hdr->message != GTP_MSG_CREATE_PDP_REQ && gtp_hdr->message != GTP_MSG_UPDATE_PDP_RESP && gtp_hdr->message != GTP_MSG_UPDATE_PDP_REQ)) { /* If the lists are not empty*/ if (wmem_list_count(teid_list) && wmem_list_count(ip_list)) { remove_frame_info(pinfo->num); } } if (gtp_hdr->message == GTP_MSG_CREATE_PDP_REQ) { /* If CPDPCREQ and not already in the list then we create a new session*/ add_gtp_session(pinfo->num, gtp_session_count++); } else if (gtp_hdr->message != GTP_MSG_CREATE_PDP_RESP) { /* If this is an error indication then we have to check the session id that belongs to the message with the same data teid and ip */ if (gtp_hdr->message == GTP_MSG_ERR_IND) { if (get_frame(last_ip, last_teid, &frame_teid_cp) == 1) { session = GPOINTER_TO_UINT(wmem_map_lookup(session_table, GUINT_TO_POINTER(frame_teid_cp))); if (session) { /* We add the corresponding session to the session list*/ add_gtp_session(pinfo->num, session); } } } else { /* We have to check if its teid == teid_cp and ip.dst == gsn_ipv4 from the lists, if that is the case then we have to assign the corresponding session ID */ if ((get_frame(pinfo->dst, (uint32_t)gtp_hdr->teid, &frame_teid_cp) == 1)) { /* Then we have to set its session ID */ session = GPOINTER_TO_UINT(wmem_map_lookup(session_table, GUINT_TO_POINTER(frame_teid_cp))); if (session) { /* We add the corresponding session to the list so that when a response came we can associate its session ID*/ add_gtp_session(pinfo->num, session); } } } } } } } static int dissect_nrup(tvbuff_t * tvb, packet_info * pinfo _U_, proto_tree * tree, void *private_data _U_) { uint32_t pdu_type; bool dl_disc_blk; bool dl_flush; uint32_t dl_disc_num_blks; int offset = 0; /* NRUP */ proto_item *nrup_ti; proto_tree *nrup_tree; /* Protocol subtree */ nrup_ti = proto_tree_add_item(tree, proto_nrup, tvb, offset, -1, ENC_NA); nrup_tree = proto_item_add_subtree(nrup_ti, ett_nrup); proto_tree_add_item_ret_uint(nrup_ti, hf_nrup_pdu_type,tvb, offset, 1, ENC_BIG_ENDIAN, &pdu_type); switch (pdu_type) { case NR_UP_DL_USER_DATA: { /* 5.5.2.1 */ bool report_delivered; /* PDU Type (=0) Spare DL Discard Blocks DL Flush Report polling Octet 1*/ proto_tree_add_item(nrup_tree, hf_nrup_spr_bit_extnd_flag, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item_ret_boolean(nrup_tree, hf_nrup_dl_discrd_blks, tvb, offset, 1, ENC_BIG_ENDIAN, &dl_disc_blk); proto_tree_add_item_ret_boolean(nrup_tree, hf_nrup_dl_flush, tvb, offset, 1, ENC_BIG_ENDIAN, &dl_flush); proto_tree_add_item(nrup_tree, hf_nrup_rpt_poll, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; /* Spare Assistance Info. Report Polling Flag Retransmission flag*/ proto_tree_add_item(nrup_tree, hf_nrup_spare, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(nrup_tree, hf_nrup_request_out_of_seq_report, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item_ret_boolean(nrup_tree, hf_nrup_report_delivered, tvb, offset, 1, ENC_BIG_ENDIAN, &report_delivered); proto_tree_add_item(nrup_tree, hf_nrup_user_data_existence_flag, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(nrup_tree, hf_nrup_ass_inf_rep_poll_flag, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(nrup_tree, hf_nrup_retransmission_flag, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; /* NR-U Sequence NUmber */ proto_tree_add_item(nrup_tree, hf_nrup_nr_u_seq_num, tvb, offset, 3, ENC_BIG_ENDIAN); offset += 3; if (dl_flush) { /* DL discard NR PDCP PDU SN */ proto_tree_add_item(nrup_tree, hf_nrup_dl_disc_nr_pdcp_pdu_sn, tvb, offset, 3, ENC_BIG_ENDIAN); offset += 3; } /* Discarded blocks */ if (dl_disc_blk) { /* DL discard Number of blocks */ proto_tree_add_item_ret_uint(nrup_tree, hf_nrup_dl_disc_num_blks, tvb, offset, 1, ENC_BIG_ENDIAN, &dl_disc_num_blks); offset++; while (dl_disc_num_blks) { /* DL discard NR PDCP PDU SN start */ proto_tree_add_item(nrup_tree, hf_nrup_dl_disc_nr_pdcp_pdu_sn_start, tvb, offset, 3, ENC_BIG_ENDIAN); offset += 3; /* Discarded Block size */ proto_tree_add_item(nrup_tree, hf_nrup_dl_disc_blk_sz, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; dl_disc_num_blks--; } } if (report_delivered) { /* DL report NR PDCP PDU SN */ proto_tree_add_item(nrup_tree, hf_nrup_dl_report_nr_pdcp_pdu_sn, tvb, offset, 3, ENC_BIG_ENDIAN); offset += 3; } break; } case NR_UP_DL_DATA_DELIVERY_STATUS: { /* 5.5.2.2 */ bool high_tx_nr_pdcp_sn_ind; bool high_del_nr_pdcp_sn_ind; bool lost_packet_report; bool high_retx_nr_pdcp_sn_ind; bool high_del_retx_nr_pdcp_sn_ind; bool cause_rpt; bool data_rate_ind; uint32_t lost_NR_U_SN_range; proto_tree_add_item_ret_boolean(nrup_tree, hf_nrup_high_tx_nr_pdcp_sn_ind ,tvb, offset,1, ENC_BIG_ENDIAN, &high_tx_nr_pdcp_sn_ind ); proto_tree_add_item_ret_boolean(nrup_tree, hf_nrup_high_delivered_nr_pdcp_sn_ind ,tvb, offset,1, ENC_BIG_ENDIAN, &high_del_nr_pdcp_sn_ind ); proto_tree_add_item(nrup_tree, hf_nrup_final_frame_ind,tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item_ret_boolean(nrup_tree, hf_nrup_lost_pkt_rpt,tvb, offset, 1, ENC_BIG_ENDIAN, &lost_packet_report); offset++; proto_tree_add_item(nrup_tree, hf_nrup_spare, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(nrup_tree, hf_nrup_delivered_nr_pdcp_sn_range_ind ,tvb, offset,1, ENC_BIG_ENDIAN); proto_tree_add_item_ret_boolean(nrup_tree, hf_nrup_data_rate_ind,tvb, offset,1, ENC_BIG_ENDIAN, &data_rate_ind); proto_tree_add_item_ret_boolean(nrup_tree, hf_nrup_high_retx_nr_pdcp_sn_ind,tvb, offset,1, ENC_BIG_ENDIAN, &high_retx_nr_pdcp_sn_ind); proto_tree_add_item_ret_boolean(nrup_tree, hf_nrup_high_delivered_retx_nr_pdcp_sn_ind,tvb, offset,1, ENC_BIG_ENDIAN, &high_del_retx_nr_pdcp_sn_ind); proto_tree_add_item_ret_boolean(nrup_tree, hf_nrup_cause_rpt,tvb, offset,1, ENC_BIG_ENDIAN, &cause_rpt); offset++; proto_tree_add_item(nrup_tree, hf_nrup_desrd_buff_sz_data_radio_bearer,tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; if (data_rate_ind){ proto_tree_add_item(nrup_tree, hf_nrup_desrd_data_rate,tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; } if (lost_packet_report) { proto_tree_add_item_ret_uint(nrup_tree, hf_nrup_num_lost_nru_seq_num,tvb, offset, 1, ENC_BIG_ENDIAN, &lost_NR_U_SN_range); offset+=1; while (lost_NR_U_SN_range) { proto_tree_add_item(nrup_tree, hf_nrup_start_lost_nru_seq_num,tvb, offset, 3, ENC_BIG_ENDIAN); offset += 3; proto_tree_add_item(nrup_tree, hf_nrup_end_lost_nru_seq_num,tvb, offset, 3, ENC_BIG_ENDIAN); offset += 3; lost_NR_U_SN_range--; } } if (high_del_nr_pdcp_sn_ind) { proto_tree_add_item(nrup_tree, hf_nrup_high_success_delivered_nr_pdcp_sn,tvb, offset, 3, ENC_BIG_ENDIAN); offset += 3; } if (high_tx_nr_pdcp_sn_ind) { proto_tree_add_item(nrup_tree, hf_nrup_high_tx_nr_pdcp_sn,tvb, offset, 3, ENC_BIG_ENDIAN); offset += 3; } if (cause_rpt) { proto_tree_add_item(nrup_tree, hf_nrup_cause_val,tvb, offset, 1, ENC_BIG_ENDIAN); offset ++; } if (high_del_retx_nr_pdcp_sn_ind) { proto_tree_add_item(nrup_tree, hf_nrup_high_success_delivered_retx_nr_pdcp_sn,tvb, offset, 3, ENC_BIG_ENDIAN); offset += 3; } if (high_retx_nr_pdcp_sn_ind) { proto_tree_add_item(nrup_tree, hf_nrup_high_retx_nr_pdcp_sn,tvb, offset, 3, ENC_BIG_ENDIAN); } break; } case NR_UP_ASSISTANCE_INFORMATION_DATA: { /* 5.5.2.3 */ bool pdcp_duplication_indication; bool assistance_information_ind; bool ul_delay_ind; bool dl_delay_ind; bool pdcp_duplication_suggestion; /* Flags */ proto_tree_add_item_ret_boolean(nrup_tree, hf_nrup_pdcp_duplication_ind, tvb, offset,1, ENC_BIG_ENDIAN, &pdcp_duplication_indication); proto_tree_add_item_ret_boolean(nrup_tree, hf_nrup_assistance_information_ind, tvb, offset,1, ENC_BIG_ENDIAN, &assistance_information_ind); proto_tree_add_item_ret_boolean(nrup_tree, hf_nrup_ul_delay_ind, tvb, offset,1, ENC_BIG_ENDIAN, &ul_delay_ind); proto_tree_add_item_ret_boolean(nrup_tree, hf_nrup_dl_delay_ind, tvb, offset,1, ENC_BIG_ENDIAN, &dl_delay_ind); offset++; proto_tree_add_item(nrup_tree, hf_nrup_spare_2, tvb, offset,1, ENC_BIG_ENDIAN); proto_tree_add_item_ret_boolean(nrup_tree, hf_nrup_pdcp_duplication_activation_suggestion, tvb, offset,1, ENC_BIG_ENDIAN, &pdcp_duplication_suggestion); offset++; /* Number of Assistance Information Fields */ if (assistance_information_ind) { uint32_t number_of_assistance_information_fields = 0; uint32_t num_octets_radio_qa_info; /* Number of assistance info fields */ proto_tree_add_item_ret_uint(nrup_tree, hf_nrup_num_assistance_info_fields, tvb, offset,1, ENC_BIG_ENDIAN, &number_of_assistance_information_fields); offset++; for (unsigned n=0; n < number_of_assistance_information_fields; n++) { /* Assistance Information Type */ proto_tree_add_item(nrup_tree, hf_nrup_assistance_information_type, tvb, offset,1, ENC_BIG_ENDIAN); offset++; /* Num octets in assistance info */ proto_tree_add_item_ret_uint(nrup_tree, hf_nrup_num_octets_radio_qa_info, tvb, offset, 1, ENC_BIG_ENDIAN, &num_octets_radio_qa_info); offset++; /* Radio Quality Assistance info */ proto_tree_add_item(nrup_tree, hf_nrup_radio_qa_info, tvb, offset, num_octets_radio_qa_info, ENC_NA); offset += num_octets_radio_qa_info; } } /* UL Delay DU Result */ if (ul_delay_ind) { proto_tree_add_item(nrup_tree, hf_nrup_ul_delay_du_result, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; } /* DL Delay DU Result */ if (dl_delay_ind) { proto_tree_add_item(nrup_tree, hf_nrup_dl_delay_du_result, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; } break; } default: /* TODO: expert info error for unexpected PDU type? */ break; } return offset; } /* TS 38.425 */ static void addRANContParameter(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, int length) { tvbuff_t *next_tvb = tvb_new_subset_length(tvb, offset, length); call_dissector(nrup_handle, next_tvb, pinfo, tree); } static void dissect_gtp_tpdu_by_handle(dissector_handle_t handle, tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, int offset) { tvbuff_t *next_tvb; next_tvb = tvb_new_subset_remaining(tvb, offset); call_dissector(handle, next_tvb, pinfo, tree); col_prepend_fstr(pinfo->cinfo, COL_PROTOCOL, "GTP/"); } static void dissect_gtp_tpdu_as_pdcp_lte_info(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, gtp_hdr_t *gtp_hdr, int offset) { /* Check if we have info to call the PDCP dissector */ struct pdcp_lte_info *p_pdcp_info; uat_pdcp_lte_keys_record_t * found_record; tvbuff_t *pdcp_lte_tvb; if ((found_record = look_up_pdcp_lte_keys_record(pinfo, (uint32_t)gtp_hdr->teid))) { /* Look for attached packet info! */ p_pdcp_info = (struct pdcp_lte_info *)p_get_proto_data(wmem_file_scope(), pinfo, proto_pdcp_lte, 0); /* If we don't have the data, add it */ if (p_pdcp_info == NULL) { p_pdcp_info = wmem_new0(wmem_file_scope(), pdcp_lte_info); /* Channel info is needed for RRC parsing */ p_pdcp_info->direction = found_record->direction; p_pdcp_info->ueid = found_record->ue_id; p_pdcp_info->channelType = Channel_DCCH; p_pdcp_info->channelId = found_record->rb_id; /*p_pdcp_info->BCCHTransport;*/ /* Details of PDCP header */ if (found_record->header_present == PDCP_LTE_HEADER_PRESENT) { p_pdcp_info->no_header_pdu = false; } else { p_pdcp_info->no_header_pdu = true; } p_pdcp_info->plane = found_record->plane; p_pdcp_info->seqnum_length = found_record->lte_sn_length; /* RoHC settings */ p_pdcp_info->rohc.rohc_compression = found_record->rohc_compression; p_pdcp_info->rohc.rohc_ip_version = 4; /* For now set it explicitly */ p_pdcp_info->rohc.cid_inclusion_info = false; p_pdcp_info->rohc.large_cid_present = false; p_pdcp_info->rohc.mode = MODE_NOT_SET; p_pdcp_info->rohc.rnd = false; p_pdcp_info->rohc.udp_checksum_present = false; p_pdcp_info->rohc.profile = found_record->rohc_profile; /* p_pdcp_info->is_retx;*/ /* Used by heuristic dissector only */ /*p_pdcp_info->pdu_length;*/ p_add_proto_data(wmem_file_scope(), pinfo, proto_pdcp_lte, 0, p_pdcp_info); } pdcp_lte_tvb = tvb_new_subset_remaining(tvb, offset); call_dissector(pdcp_lte_handle, pdcp_lte_tvb, pinfo, tree); } else { proto_tree_add_subtree(tree, tvb, offset, -1, ett_gtp_pdcp_no_conf, NULL, "[No PDCP-LTE Configuration data found]"); proto_tree_add_item(tree, hf_pdcp_cont, tvb, offset, -1, ENC_NA); } } static void dissect_gtp_tpsu_as_pdcp_nr_info(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, gtp_hdr_t *gtp_hdr, int offset) { /*NR-U DUD or DDDS PDU * This is NR-U DUD/DDDS PDU. It contains PDCP * payload as per 3GPP TS 38.323 */ /* Check if we have info to call the PDCP dissector */ uat_pdcp_nr_keys_record_t* found_record; if ((found_record = look_up_pdcp_nr_keys_record(pinfo, (uint32_t)gtp_hdr->teid))) { tvbuff_t *pdcp_tvb; struct pdcp_nr_info temp_data; pdcp_tvb = tvb_new_subset_remaining(tvb, offset); /* Fill in pdcp_nr_info */ temp_data.direction = found_record->direction; temp_data.bearerType = Bearer_DCCH; /* always */ /* Want to use same ueid as other PDCP config.. */ temp_data.ueid = found_record->ue_id; /* Get this from table, may also be available from F1AP signalling... */ temp_data.bearerId = found_record->rb_id; /* Details of PDCP header */ temp_data.plane = found_record->plane; temp_data.seqnum_length = found_record->pdcp_nr_sn_length; /* PDCP_NR_(U|D)L_sdap_hdr_PRESENT bitmask */ if (found_record->sdap_header_present == PDCP_NR_SDAP_HEADER_PRESENT) { if (temp_data.direction == PDCP_NR_DIRECTION_UPLINK) { temp_data.sdap_header = PDCP_NR_UL_SDAP_HEADER_PRESENT; } else { temp_data.sdap_header = PDCP_NR_DL_SDAP_HEADER_PRESENT; } } else { temp_data.sdap_header = 0; } /* Integrity MAC present? */ temp_data.maci_present = found_record->mac_i_present; /* RoHC settings */ temp_data.rohc.rohc_compression = found_record->rohc_compression; temp_data.rohc.rohc_ip_version = 4; /* For now set it explicitly */ temp_data.rohc.cid_inclusion_info = false; temp_data.rohc.large_cid_present = false; temp_data.rohc.mode = MODE_NOT_SET; temp_data.rohc.rnd = false; temp_data.rohc.udp_checksum_present = false; temp_data.rohc.profile = found_record->rohc_profile; temp_data.is_retx = 0; /* Used by heuristic dissector only */ temp_data.pdu_length = 0; call_dissector_with_data(pdcp_nr_handle, pdcp_tvb, pinfo, tree, &temp_data); } else { proto_tree_add_subtree(tree, tvb, offset, -1, ett_gtp_pdcp_no_conf, NULL, "[No PDCP-NR Configuration data found]"); proto_tree_add_item(tree, hf_pdcp_cont, tvb, offset, -1, ENC_NA); } } static int dissect_gtp_common(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree) { uint8_t octet; gtp_hdr_t *gtp_hdr = NULL; proto_tree *gtp_tree = NULL, *ext_tree; proto_tree *ran_cont_tree = NULL; proto_item *ti = NULL, *tf, *ext_hdr_len_item, *message_item; int i, offset = 0, checked_field, mandatory; bool gtp_prime, has_SN; int seq_no = 0; int flow_label = 0; uint8_t pdu_no, next_hdr = 0; uint8_t ext_hdr_val; unsigned ext_hdr_length; uint16_t ext_hdr_pdcpsn; char *tid_str; uint8_t sub_proto; uint8_t acfield_len = 0; gtp_msg_hash_t *gcrp = NULL; conversation_t *conversation; gtp_conv_info_t *gtp_info; session_args_t *args = NULL; ie_decoder *decoder = NULL; /* Do we have enough bytes for the version and message type? */ if (!tvb_bytes_exist(tvb, 0, 2)) { /* No - reject the packet. */ return 0; } octet = tvb_get_uint8(tvb, 0); if (((octet >> 5) & 0x07) > 2) { /* Version > 2; reject the packet */ return 0; } octet = tvb_get_uint8(tvb, 1); if (octet == GTP_MSG_UNKNOWN || try_val_to_str(octet, gtp_message_type) == NULL) { /* Unknown message type; reject the packet */ return 0; } /* Setting everything to 0, so that the TEID is 0 for GTP version 0 * The magic number should perhaps be replaced. */ gtp_hdr = wmem_new0(pinfo->pool, gtp_hdr_t); /* Setting the TEID to -1 to say that the TEID is not valid for this packet */ gtp_hdr->teid = -1; col_set_str(pinfo->cinfo, COL_PROTOCOL, "GTP"); col_clear(pinfo->cinfo, COL_INFO); if (g_gtp_session) { args = wmem_new0(pinfo->pool, session_args_t); args->last_cause = 128; /* It stores the last cause decoded. Cause accepted by default */ /* We create the auxiliary lists */ args->teid_list = wmem_list_new(pinfo->pool); args->ip_list = wmem_list_new(pinfo->pool); } /* * Do we have a conversation for this connection? */ conversation = find_or_create_conversation(pinfo); /* * Do we already know this conversation? */ gtp_info = (gtp_conv_info_t *)conversation_get_proto_data(conversation, proto_gtp); if (gtp_info == NULL) { /* No. Attach that information to the conversation, and add * it to the list of information structures. */ gtp_info = wmem_new(wmem_file_scope(), gtp_conv_info_t); /*Request/response matching tables*/ gtp_info->matched = wmem_map_new(wmem_file_scope(), gtp_sn_hash, gtp_sn_equal_matched); gtp_info->unmatched = wmem_map_new(wmem_file_scope(), gtp_sn_hash, gtp_sn_equal_unmatched); conversation_add_proto_data(conversation, proto_gtp, gtp_info); } gtp_hdr->flags = tvb_get_uint8(tvb, offset); if (!(gtp_hdr->flags & 0x10)){ gtp_prime = true; }else{ gtp_prime = false; } switch ((gtp_hdr->flags >> 5) & 0x07) { case 0: gtp_version = 0; break; case 1: gtp_version = 1; break; default: gtp_version = 1; break; } if (tree) { if (gtp_prime) { static int * const gtp_prime_flags[] = { &hf_gtp_prime_flags_ver, &hf_gtp_flags_pt, &hf_gtp_flags_spare1, NULL }; static int * const gtp_prime_v0_flags[] = { &hf_gtp_prime_flags_ver, &hf_gtp_flags_pt, &hf_gtp_flags_spare1, &hf_gtp_flags_hdr_length, NULL }; ti = proto_tree_add_item(tree, proto_gtpprime, tvb, 0, -1, ENC_NA); gtp_tree = proto_item_add_subtree(ti, ett_gtp); /* Octet 8 7 6 5 4 3 2 1 * 1 Version | PT| Spare '1 1 1 '| ' 0/1 ' */ /* Bit 1 of octet 1 is not used in GTP' (except in v0), and it is marked '0' * in the GTP' header. It is in use in GTP' v0 and distinguishes the used header-length. * In the case of GTP' v0, this bit being marked one (1) indicates the usage of the 6 * octets header. If the bit is set to '0' (usually the case) the 20-octet header is used. * For all other versions of GTP', this bit is not used and is set to '0'. However, * this does not suggest the use of the 20-octet header, rather a shorter 6-octet header. */ if (gtp_version == 0) { proto_tree_add_bitmask_value_with_flags(gtp_tree, tvb, offset, hf_gtp_flags, ett_gtp_flags, gtp_prime_v0_flags, gtp_hdr->flags, BMT_NO_APPEND); } else { proto_tree_add_bitmask_value_with_flags(gtp_tree, tvb, offset, hf_gtp_flags, ett_gtp_flags, gtp_prime_flags, gtp_hdr->flags, BMT_NO_APPEND); } } else { static int * const gtp_flags[] = { &hf_gtp_flags_ver, &hf_gtp_flags_pt, &hf_gtp_flags_spare2, &hf_gtp_flags_e, &hf_gtp_flags_s, &hf_gtp_flags_pn, NULL }; static int * const gtp_v0_flags[] = { &hf_gtp_flags_ver, &hf_gtp_flags_pt, &hf_gtp_flags_spare1, &hf_gtp_flags_snn, NULL }; ti = proto_tree_add_item(tree, proto_gtp, tvb, 0, -1, ENC_NA); gtp_tree = proto_item_add_subtree(ti, ett_gtp); if (gtp_version == 0) { proto_tree_add_bitmask_value_with_flags(gtp_tree, tvb, offset, hf_gtp_flags, ett_gtp_flags, gtp_v0_flags, gtp_hdr->flags, BMT_NO_APPEND); } else { proto_tree_add_bitmask_value_with_flags(gtp_tree, tvb, offset, hf_gtp_flags, ett_gtp_flags, gtp_flags, gtp_hdr->flags, BMT_NO_APPEND); } } } offset++; gtp_hdr->message = tvb_get_uint8(tvb, offset); /* Link direction is needed to properly dissect PCO */ switch(gtp_hdr->message){ case GTP_MSG_DELETE_PDP_REQ: case GTP_MSG_UPDATE_PDP_REQ: case GTP_MSG_CREATE_PDP_REQ: case GTP_MSG_INIT_PDP_CONTEXT_ACT_REQ: case GTP_MSG_PDU_NOTIFY_REQ: case GTP_MSG_PDU_NOTIFY_REJ_REQ: case GTP_MSG_FORW_RELOC_REQ: /* direction added for UTRAN Container & BSS Container decode */ pinfo->link_dir = P2P_DIR_UL; break; case GTP_MSG_DELETE_PDP_RESP: case GTP_MSG_UPDATE_PDP_RESP: case GTP_MSG_CREATE_PDP_RESP: case GTP_MSG_INIT_PDP_CONTEXT_ACT_RESP: case GTP_MSG_FORW_RELOC_RESP: /* direction added for UTRAN Container & BSS Container decode */ pinfo->link_dir = P2P_DIR_DL; break; default: break; } col_set_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(gtp_hdr->message, >p_message_type_ext, "Unknown")); message_item = proto_tree_add_uint(gtp_tree, hf_gtp_message_type, tvb, offset, 1, gtp_hdr->message); offset++; gtp_hdr->length = tvb_get_ntohs(tvb, offset); proto_tree_add_uint(gtp_tree, hf_gtp_length, tvb, 2, 2, gtp_hdr->length); offset += 2; /* We initialize the sequence number*/ has_SN = false; if (gtp_prime) { seq_no = tvb_get_ntohs(tvb, offset); has_SN = true; proto_tree_add_uint(gtp_tree, hf_gtp_seq_number, tvb, offset, 2, seq_no); offset += 2; /* If GTP' version is 0 and bit 1 is 0 20 bytes header is used, dissect it */ if( (gtp_version == 0) && ((gtp_hdr->flags & 0x01) == 0) ) { proto_tree_add_item(gtp_tree, hf_gtp_dummy_octets, tvb, offset, 14, ENC_NA); offset += 14; } set_actual_length(tvb, offset + gtp_hdr->length); } else { switch (gtp_version) { case 0: seq_no = tvb_get_ntohs(tvb, offset); has_SN = true; proto_tree_add_uint(gtp_tree, hf_gtp_seq_number, tvb, offset, 2, seq_no); offset += 2; flow_label = tvb_get_ntohs(tvb, offset); proto_tree_add_uint(gtp_tree, hf_gtp_flow_label, tvb, offset, 2, flow_label); offset += 2; pdu_no = tvb_get_uint8(tvb, offset); proto_tree_add_uint(gtp_tree, hf_gtp_sndcp_number, tvb, offset, 1, pdu_no); offset += 4; tid_str = id_to_str(tvb, offset); proto_tree_add_string(gtp_tree, hf_gtp_tid, tvb, offset, 8, tid_str); offset += 8; set_actual_length(tvb, offset + gtp_hdr->length); break; case 1: gtp_hdr->teid = tvb_get_ntohl(tvb, offset); proto_tree_add_item(gtp_tree, hf_gtp_teid, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; set_actual_length(tvb, offset + gtp_hdr->length); /* Are sequence number/N-PDU Number/extension header present? See NOTE 5 of Figure 2 of 3GPP TS 29.060 version 4.3.0 Release 4 - the Sequence Number, N-PDU Number, and Next Extension Header fields are present if any of GTP_E_MASK, GTP_S_MASK, or GTP_PN_MASK are set. */ if (gtp_hdr->flags & (GTP_E_MASK|GTP_S_MASK|GTP_PN_MASK)) { /* Those fields are only *interpreted* if the particular flag for the field is set. */ if (gtp_hdr->flags & GTP_S_MASK) { seq_no = tvb_get_ntohs(tvb, offset); has_SN = true; proto_tree_add_uint(gtp_tree, hf_gtp_seq_number, tvb, offset, 2, seq_no); } offset += 2; if (gtp_hdr->flags & GTP_PN_MASK) { pdu_no = tvb_get_uint8(tvb, offset); proto_tree_add_uint(gtp_tree, hf_gtp_npdu_number, tvb, offset, 1, pdu_no); } offset++; if (gtp_hdr->flags & GTP_E_MASK) { proto_item* hdr_ext_item; next_hdr = tvb_get_uint8(tvb, offset); hdr_ext_item = proto_tree_add_uint(gtp_tree, hf_gtp_ext_hdr_next, tvb, offset, 1, next_hdr); offset++; /* Add each extension header found. */ while (next_hdr != 0) { ext_hdr_length = tvb_get_uint8(tvb, offset); tf = proto_tree_add_item(gtp_tree, hf_gtp_ext_hdr, tvb, offset, ext_hdr_length*4, ENC_NA); ext_tree = proto_item_add_subtree(tf, ett_gtp_ext_hdr); ext_hdr_len_item = proto_tree_add_item(ext_tree, hf_gtp_ext_hdr_length, tvb, offset,1, ENC_BIG_ENDIAN); if (ext_hdr_length == 0) { expert_add_info_format(pinfo, ext_hdr_len_item, &ei_gtp_ext_length_mal, "Extension header length is zero"); return tvb_reported_length(tvb); } offset++; proto_item_append_text(tf, " (%s)", val_to_str_const(next_hdr, next_extension_header_fieldvals, "Unknown")); switch (next_hdr) { case GTP_EXT_HDR_UDP_PORT: /* UDP Port * 3GPP 29.281 v9.0.0, 5.2.2.1 UDP Port * "This extension header may be transmitted in * Error Indication messages to provide the UDP * Source Port of the G-PDU that triggered the * Error Indication. It is 4 octets long, and * therefore the Length field has value 1" */ if (ext_hdr_length == 1) { /* UDP Port of source */ proto_tree_add_item(ext_tree, hf_gtp_ext_hdr_udp_port, tvb, offset, 2, ENC_BIG_ENDIAN); } else { /* Bad length */ expert_add_info_format(pinfo, ext_tree, &ei_gtp_ext_length_warn, "The length field for the UDP Port Extension header should be 1."); } break; case GTP_EXT_HDR_RAN_CONT: /* RAN Container * 3GPP 29.281 v15.2.0, 5.2.2.4 RAN Container * This extension header may be transmitted in * a G-PDU over the X2 user plane interface * between the eNBs. The RAN Container has a * variable length and its content is specified * in 3GPP TS 36.425 [25]. A G-PDU message with * this extension header may be sent without a T-PDU. */ proto_tree_add_item(ext_tree, hf_gtp_ext_hdr_ran_cont, tvb, offset, (4*ext_hdr_length)-1, ENC_NA); break; case GTP_EXT_HDR_LONG_PDCP_PDU: /* Long PDCP PDU Number * 3GPP 29.281 v15.2.0, 5.2.2.2A Long PDCP PDU Number * This extension header is used for direct X2 or * indirect S1 DL data forwarding during a Handover * procedure between two eNBs. The Long PDCP PDU number * extension header is 8 octets long, and therefore * the Length field has value 2. * The PDCP PDU number field of the Long PDCP PDU number * extension header has a maximum value which requires 18 * bits (see 3GPP TS 36.323 [24]). Bit 2 of octet 2 is * the most significant bit and bit 1 of octet 4 is the * least significant bit, see Figure 5.2.2.2A-1. Bits 8 to * 3 of octet 2, and Bits 8 to 1 of octets 5 to 7 shall be * set to 0. * NOTE: A G-PDU which includes a PDCP PDU Number contains * either the extension header PDCP PDU Number or Long PDCP * PDU Number. */ if (ext_hdr_length == 2) { proto_tree_add_bits_item(ext_tree, hf_gtp_ext_hdr_spare_bits, tvb, offset<<3, 6, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_ext_hdr_long_pdcp_sn, tvb, offset, 3, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_ext_hdr_spare_bytes, tvb, offset+3, 3, ENC_NA); } else { expert_add_info_format(pinfo, ext_tree, &ei_gtp_ext_length_warn, "The length field for the Long PDCP SN Extension header should be 2."); } break; case GTP_EXT_HDR_XW_RAN_CONT: /* Xw RAN Container * 3GPP 29.281 v15.2.0, 5.2.2.5 Xw RAN Container * This extension header may be transmitted in a * G-PDU over the Xw user plane interface between * the eNB and the WLAN Termination (WT). The Xw * RAN Container has a variable length and its * content is specified in 3GPP TS 36.464 [27]. * A G-PDU message with this extension header may * be sent without a T-PDU. */ proto_tree_add_item(ext_tree, hf_gtp_ext_hdr_xw_ran_cont, tvb, offset, (4*ext_hdr_length)-1, ENC_NA); break; case GTP_EXT_HDR_NR_RAN_CONT: /* NR RAN Container * 3GPP 29.281 v15.2.0, 5.2.2.6 NR RAN Container * This extension header may be transmitted in a * G-PDU over the X2-U, Xn-U and F1-U user plane * interfaces, within NG-RAN and, for EN-DC, within * E-UTRAN. The NR RAN Container has a variable * length and its content is specified in 3GPP TS * 38.425 [30]. A G-PDU message with this extension * header may be sent without a T-PDU. */ ran_cont_tree = proto_tree_add_subtree(ext_tree, tvb, offset, (ext_hdr_length * 4) - 1, ett_gtp_nr_ran_cont, NULL, "NR RAN Container"); addRANContParameter(tvb, pinfo, ran_cont_tree, offset, (ext_hdr_length * 4) - 1); break; case GTP_EXT_HDR_PDU_SESSION_CONT: { /* PDU Session Container * 3GPP 29.281 v15.2.0, 5.2.2.7 PDU Session Container * This extension header may be transmitted in a G-PDU * over the N3 and N9 user plane interfaces, between * NG-RAN and UPF, or between two UPFs. The PDU Session * Container has a variable length and its content is * specified in 3GPP TS 38.415 [31]. */ static int * const flags1_dl[] = { &hf_gtp_ext_hdr_pdu_ses_cont_qmp, &hf_gtp_ext_hdr_pdu_ses_cont_snp_dl, &hf_gtp_ext_hdr_pdu_ses_cont_msnp, &hf_gtp_spare_b0, NULL }; static int * const flags1_ul[] = { &hf_gtp_ext_hdr_pdu_ses_cont_qmp, &hf_gtp_ext_hdr_pdu_ses_cont_dl_delay_ind, &hf_gtp_ext_hdr_pdu_ses_cont_ul_delay_ind, &hf_gtp_ext_hdr_pdu_ses_cont_snp_ul, NULL }; static int * const flags2[] = { &hf_gtp_ext_hdr_pdu_ses_cont_ppp, &hf_gtp_ext_hdr_pdu_ses_cont_rqi, &hf_gtp_ext_hdr_pdu_ses_cont_qos_flow_id, NULL }; static int * const flags3[] = { &hf_gtp_ext_hdr_pdu_ses_cont_ppi, &hf_gtp_spare_b4b0, NULL }; static int * const flags4[] = { &hf_gtp_ext_hdr_pdu_ses_cont_n3_n9_delay_ind, &hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag, &hf_gtp_ext_hdr_pdu_ses_cont_qos_flow_id, NULL }; static int * const flags5[] = { &hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_7, &hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_6, &hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_5, &hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_4, &hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_3, &hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_2, &hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_1, &hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_0, NULL }; static int * const flags6[] = { &hf_gtp_spare_b7b1, &hf_gtp_ext_hdr_pdu_ses_cont_d1_ul_pdcp_delay_result_ind, NULL }; proto_tree *pdu_ses_cont_tree; uint32_t pdu_type; uint64_t flags1_val, flags2_val, flags4_val, flags5_val; int curr_offset = offset; pdu_ses_cont_tree = proto_tree_add_subtree(ext_tree, tvb, curr_offset, (ext_hdr_length * 4) - 1, ett_pdu_session_cont, NULL, "PDU Session Container"); proto_tree_add_item_ret_uint(pdu_ses_cont_tree, hf_gtp_ext_hdr_pdu_ses_cont_pdu_type, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &pdu_type); switch (pdu_type) { case 0: /* PDU Type: DL PDU SESSION INFORMATION (0) */ /* PDU Type QMP SNP MSNP Spare */ proto_tree_add_bitmask_list_ret_uint64(pdu_ses_cont_tree, tvb, curr_offset, 1, flags1_dl, ENC_BIG_ENDIAN, &flags1_val); curr_offset++; /* PPP RQI QoS Flow Identifier */ proto_tree_add_bitmask_list_ret_uint64(pdu_ses_cont_tree, tvb, curr_offset, 1, flags2, ENC_BIG_ENDIAN, &flags2_val); curr_offset++; if (flags2_val & 0x80) { /* PPI Spare */ proto_tree_add_bitmask_list(pdu_ses_cont_tree, tvb, curr_offset, 1, flags3, ENC_BIG_ENDIAN); curr_offset++; } if (flags1_val & 0x08) { proto_tree_add_item(pdu_ses_cont_tree, hf_gtp_ext_hdr_pdu_ses_cont_dl_send_time_stamp, tvb, curr_offset, 8, ENC_TIME_NTP|ENC_BIG_ENDIAN); curr_offset += 8; } if (flags1_val & 0x04) { proto_tree_add_item(pdu_ses_cont_tree, hf_gtp_ext_hdr_pdu_ses_cont_dl_qfi_sn, tvb, curr_offset, 3, ENC_BIG_ENDIAN); curr_offset += 3; } if (flags1_val & 0x02) { proto_tree_add_item(pdu_ses_cont_tree, hf_gtp_ext_hdr_pdu_ses_cont_dl_mbs_qfi_sn, tvb, curr_offset, 4, ENC_BIG_ENDIAN); //curr_offset += 4; } break; case 1: /* PDU Type: UL PDU SESSION INFORMATION (1)*/ /* PDU Type QMP DL Delay Ind UL Delay Ind SNP */ proto_tree_add_bitmask_list_ret_uint64(pdu_ses_cont_tree, tvb, curr_offset, 1, flags1_ul, ENC_BIG_ENDIAN, &flags1_val); curr_offset++; /* N3/N9 Delay ind New IE Flag QoS Flow Identifier */ proto_tree_add_bitmask_list_ret_uint64(pdu_ses_cont_tree, tvb, curr_offset, 1, flags4, ENC_BIG_ENDIAN, &flags4_val); curr_offset++; if (flags1_val & 0x08) { proto_tree_add_item(pdu_ses_cont_tree, hf_gtp_ext_hdr_pdu_ses_cont_dl_send_time_stamp_repeat, tvb, curr_offset, 8, ENC_TIME_NTP|ENC_BIG_ENDIAN); curr_offset += 8; proto_tree_add_item(pdu_ses_cont_tree, hf_gtp_ext_hdr_pdu_ses_cont_dl_recv_time_stamp, tvb, curr_offset, 8, ENC_TIME_NTP|ENC_BIG_ENDIAN); curr_offset += 8; proto_tree_add_item(pdu_ses_cont_tree, hf_gtp_ext_hdr_pdu_ses_cont_ul_send_time_stamp, tvb, curr_offset, 8, ENC_TIME_NTP|ENC_BIG_ENDIAN); curr_offset += 8; } if (flags1_val & 0x04) { proto_tree_add_item(pdu_ses_cont_tree, hf_gtp_ext_hdr_pdu_ses_cont_dl_delay_result, tvb, curr_offset, 4, ENC_BIG_ENDIAN); curr_offset += 4; } if (flags1_val & 0x02) { proto_tree_add_item(pdu_ses_cont_tree, hf_gtp_ext_hdr_pdu_ses_cont_ul_delay_result, tvb, curr_offset, 4, ENC_BIG_ENDIAN); curr_offset += 4; } if (flags1_val & 0x01) { proto_tree_add_item(pdu_ses_cont_tree, hf_gtp_ext_hdr_pdu_ses_cont_ul_qfi_sn, tvb, curr_offset, 3, ENC_BIG_ENDIAN); curr_offset += 3; } if (flags4_val & 0x80) { proto_tree_add_item(pdu_ses_cont_tree, hf_gtp_ext_hdr_pdu_ses_cont_n3_n9_delay_result, tvb, curr_offset, 4, ENC_BIG_ENDIAN); curr_offset += 4; } if (flags4_val & 0x40) { proto_tree_add_bitmask_list_ret_uint64(pdu_ses_cont_tree, tvb, curr_offset, 1, flags5, ENC_BIG_ENDIAN, &flags5_val); curr_offset++; if (flags5_val & 0x01) { proto_tree_add_bitmask_list(pdu_ses_cont_tree, tvb, curr_offset, 1, flags6, ENC_BIG_ENDIAN); //curr_offset++; } } break; default: proto_tree_add_expert(pdu_ses_cont_tree, pinfo, &ei_gtp_unknown_pdu_type, tvb, offset, (ext_hdr_length * 4) - 1); break; } } break; case GTP_EXT_HDR_PDCP_SN: /* PDCP PDU * 3GPP 29.281 v9.0.0, 5.2.2.2 PDCP PDU Number * * "This extension header is transmitted, for * example in UTRAN, at SRNS relocation time, * to provide the PDCP sequence number of not * yet acknowledged N-PDUs. It is 4 octets long, * and therefore the Length field has value 1. * * When used during a handover procedure between * two eNBs at the X2 interface (direct DL data * forwarding) or via the S1 interface (indirect * DL data forwarding) in E-UTRAN, bit 8 of octet * 2 is spare and shall be set to zero. * * Wireshark Note: TS 29.060 does not define bit * 5-6 as spare, so no check is possible unless * a preference is used. */ /* First byte is length (should be 1) */ if (ext_hdr_length == 1) { proto_item* ext_item; ext_hdr_pdcpsn = tvb_get_ntohs(tvb, offset); ext_item = proto_tree_add_item(ext_tree, hf_gtp_ext_hdr_pdcpsn, tvb, offset, 2, ENC_BIG_ENDIAN); if (ext_hdr_pdcpsn & 0x8000) { expert_add_info(pinfo, ext_item, &ei_gtp_ext_hdr_pdcpsn); } } else { expert_add_info_format(pinfo, ext_tree, &ei_gtp_ext_length_warn, "The length field for the PDCP SN Extension header should be 1."); } break; case GTP_EXT_HDR_SUSPEND_REQ: /* Suspend Request */ break; case GTP_EXT_HDR_SUSPEND_RESP: /* Suspend Response */ break; default: { tvbuff_t * ext_hdr_tvb; gtp_hdr_ext_info_t gtp_hdr_ext_info; gtp_hdr_ext_info.hdr_ext_item = hdr_ext_item; /* NOTE Type and length included in the call */ ext_hdr_tvb = tvb_new_subset_remaining(tvb, offset - 2); dissector_try_uint_new(gtp_hdr_ext_dissector_table, next_hdr, ext_hdr_tvb, pinfo, ext_tree, false, >p_hdr_ext_info); break; } } offset += ext_hdr_length*4 - 2; next_hdr = tvb_get_uint8(tvb, offset); hdr_ext_item = proto_tree_add_uint(ext_tree, hf_gtp_ext_hdr_next, tvb, offset, 1, next_hdr); offset++; } } else offset++; } break; default: break; } } if (gtp_hdr->message != GTP_MSG_TPDU) { /* Dissect IEs */ mandatory = 0; /* check order of GTP fields against ETSI */ while (tvb_reported_length_remaining(tvb, offset) > 0) { decoder = NULL; ext_hdr_val = tvb_get_uint8(tvb, offset); if (g_gtp_etsi_order) { checked_field = check_field_presence_and_decoder(gtp_hdr->message, ext_hdr_val, &mandatory, &decoder); switch (checked_field) { case -2: expert_add_info(pinfo, message_item, &ei_gtp_message_not_found); break; case -1: expert_add_info(pinfo, message_item, &ei_gtp_field_not_present); break; case 0: break; default: expert_add_info_format(pinfo, message_item, &ei_gtp_wrong_next_field, "[WARNING] wrong next field, should be: %s", val_to_str_ext_const(checked_field, >p_val_ext, "Unknown extension field")); break; } } if (decoder == NULL) { i = -1; while (gtpopt[++i].optcode) if (gtpopt[i].optcode == ext_hdr_val) break; decoder = gtpopt[i].decode; } offset = offset + (*decoder) (tvb, offset, pinfo, gtp_tree, args); } if (args && !PINFO_FD_VISITED(pinfo)) { /* We insert the lists inside the table*/ fill_map(args->teid_list, args->ip_list, pinfo->num); } /*Use sequence number to track Req/Resp pairs*/ if (has_SN) { uint8_t cause_aux = 128; /* Cause accepted by default. Only used when args is NULL */ if (args) { cause_aux = args->last_cause; } gcrp = gtp_match_response(tvb, pinfo, gtp_tree, seq_no, gtp_hdr->message, gtp_info, cause_aux); /*pass packet to tap for response time reporting*/ if (gcrp) { tap_queue_packet(gtp_tap,pinfo,gcrp); } } } if (args) { track_gtp_session(tvb, pinfo, gtp_tree, gtp_hdr, args->teid_list, args->ip_list, args->last_teid, args->last_ip); } proto_item_set_end(ti, tvb, offset); if ((gtp_hdr->message == GTP_MSG_TPDU) && (tvb_reported_length_remaining(tvb, offset) > 0)) { switch (dissect_tpdu_as) { case GTP_TPDU_AS_TPDU_HEUR: sub_proto = tvb_get_uint8(tvb, offset); if ((sub_proto >= 0x45) && (sub_proto <= 0x4e)) { /* this is most likely an IPv4 packet * we can exclude 0x40 - 0x44 because the minimum header size is 20 octets * 0x4f is excluded because PPP protocol type "IPv6 header compression" * with protocol field compression is more likely than a plain IPv4 packet with 60 octet header size */ dissect_gtp_tpdu_by_handle(ip_handle, tvb, pinfo, tree, offset); } else if ((sub_proto & 0xf0) == 0x60) { /* this is most likely an IPv6 packet */ dissect_gtp_tpdu_by_handle(ipv6_handle, tvb, pinfo, tree, offset); } else { if (tvb_reported_length_remaining(tvb, offset)>14) { uint16_t eth_type; eth_type = tvb_get_ntohs(tvb, offset+12); if (eth_type == ETHERTYPE_ARP || eth_type == ETHERTYPE_IPv6 || eth_type == ETHERTYPE_IP) { /* guess this is an ethernet PDU based on the eth type field */ dissect_gtp_tpdu_by_handle(eth_handle, tvb, pinfo, tree, offset); } } else { #if 0 /* This turns out not to be true, remove the code and try to improve it if we get bug reports */ /* this seems to be a PPP packet */ if (sub_proto == 0xff) { uint8_t control_field; /* this might be an address field, even it shouldn't be here */ control_field = tvb_get_uint8(tvb, offset + 1); if (control_field == 0x03) /* now we are pretty sure that address and control field are mistakenly inserted -> ignore it for PPP dissection */ acfield_len = 2; } next_tvb = tvb_new_subset_remaining(tvb, offset + acfield_len); call_dissector(ppp_handle, next_tvb, pinfo, tree); #endif proto_tree_add_item(tree, hf_gtp_tpdu_data, tvb, offset, -1, ENC_NA); col_prepend_fstr(pinfo->cinfo, COL_PROTOCOL, "GTP/"); } } break; case GTP_TPDU_AS_PDCP_LTE: dissect_gtp_tpdu_as_pdcp_lte_info(tvb, pinfo, tree, gtp_hdr, offset); break; case GTP_TPDU_AS_PDCP_NR: dissect_gtp_tpsu_as_pdcp_nr_info(tvb, pinfo, tree, gtp_hdr, offset); break; case GTP_TPDU_AS_SYNC: dissect_gtp_tpdu_by_handle(sync_handle, tvb, pinfo, tree, offset + acfield_len); break; case GTP_TPDU_AS_ETHERNET: dissect_gtp_tpdu_by_handle(eth_handle, tvb, pinfo, tree, offset); break; case GTP_TPDU_AS_CUSTOM: /* Call a custom dissector if available */ if (gtp_tpdu_custom_handle || (gtp_tpdu_custom_handle = find_dissector("gtp_tpdu_custom"))) { dissect_gtp_tpdu_by_handle(gtp_tpdu_custom_handle, tvb, pinfo, tree, offset); } else { proto_tree_add_item(tree, hf_gtp_tpdu_data, tvb, offset, -1, ENC_NA); } break; default: proto_tree_add_item(tree, hf_gtp_tpdu_data, tvb, offset, -1, ENC_NA); break; } } tap_queue_packet(gtpv1_tap,pinfo, gtp_hdr); return tvb_reported_length(tvb); } static int dissect_gtpprime(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, void *private_data _U_) { return dissect_gtp_common(tvb, pinfo, tree); } static int dissect_gtp(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, void *private_data _U_) { uint8_t version; /* * Do we have enough data to check the first byte? */ if (!tvb_bytes_exist(tvb, 0, 1)) { /* No. */ return 0; } /* * If this is GTPv2-C call the gtpv2 dissector if present * Should this be moved to after the conversation stuff to retain that functionality for GTPv2 ??? */ version = tvb_get_uint8(tvb,0)>>5; if (version > 2) { /* Unknown version - reject the packet */ return 0; } if (version == 2) { /* GTPv2-C 3GPP TS 29.274 */ if (gtpv2_handle) { call_dissector(gtpv2_handle, tvb, pinfo, tree); return tvb_reported_length(tvb); } } return dissect_gtp_common(tvb, pinfo, tree); } static void gtp_init(void) { gtp_session_count = 1; } void proto_register_gtp(void) { module_t *gtp_module; expert_module_t* expert_gtp; unsigned i; unsigned last_offset; static hf_register_info hf_gtp[] = { {&hf_gtp_ie_id, { "IE Id", "gtp.ie_id", FT_UINT8, BASE_DEC|BASE_EXT_STRING, >p_val_ext, 0x0, NULL, HFILL} }, {&hf_gtp_response_in, { "Response In", "gtp.response_in", FT_FRAMENUM, BASE_NONE, FRAMENUM_TYPE(FT_FRAMENUM_RESPONSE), 0x0, "The response to this GTP request is in this frame", HFILL} }, {&hf_gtp_response_to, { "Response To", "gtp.response_to", FT_FRAMENUM, BASE_NONE, FRAMENUM_TYPE(FT_FRAMENUM_REQUEST), 0x0, "This is a response to the GTP request in this frame", HFILL} }, {&hf_gtp_time, { "Time", "gtp.time", FT_RELATIVE_TIME, BASE_NONE, NULL, 0x0, "The time between the Request and the Response", HFILL} }, {&hf_gtp_apn, { "APN", "gtp.apn", FT_STRING, BASE_NONE, NULL, 0, "Access Point Name", HFILL} }, {&hf_gtp_cause, { "Cause", "gtp.cause", FT_UINT8, BASE_DEC|BASE_EXT_STRING, &cause_type_ext, 0, "Cause of operation", HFILL} }, {&hf_gtp_chrg_char, { "Charging characteristics", "gtp.chrg_char", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_gtp_chrg_char_s, { "Spare", "gtp.chrg_char_s", FT_UINT16, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_S, NULL, HFILL} }, {&hf_gtp_chrg_char_n, { "Normal charging", "gtp.chrg_char_n", FT_UINT16, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_N, NULL, HFILL} }, {&hf_gtp_chrg_char_p, { "Prepaid charging", "gtp.chrg_char_p", FT_UINT16, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_P, NULL, HFILL} }, {&hf_gtp_chrg_char_f, { "Flat rate charging", "gtp.chrg_char_f", FT_UINT16, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_F, NULL, HFILL} }, {&hf_gtp_chrg_char_h, { "Hot billing charging", "gtp.chrg_char_h", FT_UINT16, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_H, NULL, HFILL} }, {&hf_gtp_chrg_char_r, { "Reserved", "gtp.chrg_char_r", FT_UINT16, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_R, NULL, HFILL} }, {&hf_gtp_chrg_id, { "Charging ID", "gtp.chrg_id", FT_UINT32, BASE_HEX_DEC, NULL, 0, NULL, HFILL} }, {&hf_gtp_chrg_ipv4, { "CG address IPv4", "gtp.chrg_ipv4", FT_IPv4, BASE_NONE, NULL, 0, "Charging Gateway address IPv4", HFILL} }, {&hf_gtp_chrg_ipv6, { "CG address IPv6", "gtp.chrg_ipv6", FT_IPv6, BASE_NONE, NULL, 0, "Charging Gateway address IPv6", HFILL} }, {&hf_gtp_ext_flow_label, { "Flow Label Data I", "gtp.ext_flow_label", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL} }, {&hf_gtp_ext_id, { "Extension identifier", "gtp.ext_id", FT_UINT16, BASE_ENTERPRISES, STRINGS_ENTERPRISES, 0, "Private Enterprise number", HFILL} }, {&hf_gtp_ext_val, { "Extension value", "gtp.ext_val", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL} }, {&hf_gtp_flags, { "Flags", "gtp.flags", FT_UINT8, BASE_HEX, NULL, 0, "Ver/PT/Spare...", HFILL} }, {&hf_gtp_ext_hdr, { "Extension header", "gtp.ext_hdr", FT_NONE, BASE_NONE, NULL, 0, NULL, HFILL} }, {&hf_gtp_ext_hdr_next, { "Next extension header type", "gtp.ext_hdr.next", FT_UINT8, BASE_HEX, VALS(next_extension_header_fieldvals), 0, NULL, HFILL} }, {&hf_gtp_ext_hdr_ran_cont, { "RAN Container", "gtp.ext_hdr.ran_cont", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL} }, {&hf_gtp_ext_hdr_spare_bits, { "Spare", "gtp.ext_hdr.spare_bits", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL} }, {&hf_gtp_ext_hdr_spare_bytes, { "Spare", "gtp.ext_hdr.spare_bytes", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL} }, {&hf_gtp_ext_hdr_long_pdcp_sn, { "Long PDCP Sequence Number", "gtp.ext_hdr.long_pdcp_sn", FT_UINT24, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_gtp_ext_hdr_xw_ran_cont, { "Xw RAN Container", "gtp.ext_hdr.xw_ran_cont", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_pdu_type, { "PDU Type", "gtp.ext_hdr.pdu_ses_con.pdu_type", FT_UINT8, BASE_DEC, VALS(gtp_ext_hdr_pdu_ses_cont_pdu_type_vals), 0xf0, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_qmp, { "QoS Monitoring Packet", "gtp.ext_hdr.pdu_ses_con.qmp", FT_BOOLEAN, 8, TFS(&tfs_used_notused), 0x08, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_snp_dl, { "Sequence Number Presence", "gtp.ext_hdr.pdu_ses_con.snp", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x04, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_msnp, { "MBS Sequence Number Presence", "gtp.ext_hdr.pdu_ses_con.msnp", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x02, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_ppp, { "Paging Policy Presence (PPP)", "gtp.ext_hdr.pdu_ses_cont.ppp", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x80, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_rqi, { "Reflective QoS Indicator (RQI)", "gtp.ext_hdr.pdu_ses_cont.rqi", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x40, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_qos_flow_id, { "QoS Flow Identifier (QFI)", "gtp.ext_hdr.pdu_ses_con.qos_flow_id", FT_UINT8, BASE_DEC, NULL, 0x3f, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_ppi, { "Paging Policy Indicator (PPI)", "gtp.ext_hdr.pdu_ses_cont.ppi", FT_UINT8, BASE_DEC, NULL, 0xe0, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_dl_send_time_stamp, { "DL Sending Time Stamp", "gtp.ext_hdr.pdu_ses_cont.dl_send_time_stamp", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_NTP_UTC, NULL, 0, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_dl_qfi_sn, { "DL QFI Sequence Number", "gtp.ext_hdr.pdu_ses_cont.dl_qfi_sn", FT_UINT24, BASE_DEC, NULL, 0, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_dl_mbs_qfi_sn, { "DL MBS QFI Sequence Number", "gtp.ext_hdr.pdu_ses_cont.dl_mbs_qfi_sn", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_dl_delay_ind, { "DL Delay Ind", "gtp.ext_hdr.pdu_ses_con.dl_delay_ind", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x04, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_ul_delay_ind, { "UL Delay Ind", "gtp.ext_hdr.pdu_ses_con.ul_delay_ind", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x02, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_snp_ul, { "Sequence Number Presence", "gtp.ext_hdr.pdu_ses_con.snp", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x01, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_n3_n9_delay_ind, { "N3/N9 Delay Ind", "gtp.ext_hdr.pdu_ses_con.n3_n9_delay_ind", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x80, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag, { "New IE Flag", "gtp.ext_hdr.pdu_ses_con.new_ie_flag", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x40, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_dl_send_time_stamp_repeat, { "DL Sending Time Stamp Repeated", "gtp.ext_hdr.pdu_ses_cont.dl_send_time_stamp_repeat", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_NTP_UTC, NULL, 0, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_dl_recv_time_stamp, { "DL Received Time Stamp", "gtp.ext_hdr.pdu_ses_cont.dl_recv_time_stamp", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_NTP_UTC, NULL, 0, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_ul_send_time_stamp, { "UL Sending Time Stamp", "gtp.ext_hdr.pdu_ses_cont.ul_send_time_stamp", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_NTP_UTC, NULL, 0, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_dl_delay_result, { "DL Delay Result", "gtp.ext_hdr.pdu_ses_cont.dl_delay_result", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_ul_delay_result, { "UL Delay Result", "gtp.ext_hdr.pdu_ses_cont.ul_delay_result", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_ul_qfi_sn, { "UL QFI Sequence Number", "gtp.ext_hdr.pdu_ses_cont.ul_qfi_sn", FT_UINT24, BASE_DEC, NULL, 0, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_n3_n9_delay_result, { "N3/N9 Delay Result", "gtp.ext_hdr.pdu_ses_cont.n3_n9_delay_result", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_7, { "New IE Flag 7", "gtp.ext_hdr.pdu_ses_cont.new_ie_flag_7", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x80, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_6, { "New IE Flag 6", "gtp.ext_hdr.pdu_ses_cont.new_ie_flag_6", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x40, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_5, { "New IE Flag 5", "gtp.ext_hdr.pdu_ses_cont.new_ie_flag_5", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x20, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_4, { "New IE Flag 4", "gtp.ext_hdr.pdu_ses_cont.new_ie_flag_4", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x10, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_3, { "New IE Flag 3", "gtp.ext_hdr.pdu_ses_cont.new_ie_flag_3", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x08, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_2, { "New IE Flag 2", "gtp.ext_hdr.pdu_ses_cont.new_ie_flag_2", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x04, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_1, { "New IE Flag 1", "gtp.ext_hdr.pdu_ses_cont.new_ie_flag_1", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x02, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_new_ie_flag_0, { "New IE Flag 0", "gtp.ext_hdr.pdu_ses_cont.new_ie_flag_0", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x01, NULL, HFILL} }, { &hf_gtp_ext_hdr_pdu_ses_cont_d1_ul_pdcp_delay_result_ind, { "D1 UL PDCP Delay Result Ind", "gtp.ext_hdr.pdu_ses_cont.d1_ul_pdcp_delay_result_ind", FT_BOOLEAN, 8, TFS(&tfs_included_not_included), 0x01, NULL, HFILL} }, {&hf_pdcp_cont, { "PDCP Protocol", "gtp.pdcp", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL} }, {&hf_gtp_ext_hdr_pdcpsn, { "PDCP Sequence Number", "gtp.ext_hdr.pdcp_sn", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_gtp_ext_hdr_udp_port, { "UDP Port", "gtp.ext_hdr.udp_port", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_gtp_ext_hdr_length, { "Extension Header Length", "gtp.ext_hdr.length", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_gtp_flags_ver, { "Version", "gtp.flags.version", FT_UINT8, BASE_DEC, VALS(ver_types), GTP_VER_MASK, "GTP Version", HFILL} }, {&hf_gtp_prime_flags_ver, { "Version", "gtp.prim.flags.version", FT_UINT8, BASE_DEC,NULL, GTP_VER_MASK, "GTP' Version", HFILL} }, {&hf_gtp_flags_pt, { "Protocol type", "gtp.flags.payload", FT_UINT8, BASE_DEC, VALS(pt_types), GTP_PT_MASK, NULL, HFILL} }, {&hf_gtp_flags_spare1, { "Reserved", "gtp.flags.reserved", FT_UINT8, BASE_DEC, NULL, GTP_SPARE1_MASK, "Reserved (shall be sent as '111' )", HFILL} }, {&hf_gtp_flags_hdr_length, { "Header length", "gtp.flags.hdr_length", FT_BOOLEAN, 8, TFS(>p_hdr_length_vals), 0x01, NULL, HFILL} }, {&hf_gtp_flags_snn, { "Is SNDCP N-PDU included?", "gtp.flags.snn", FT_BOOLEAN, 8, TFS(&tfs_yes_no), GTP_SNN_MASK, "Is SNDCP N-PDU LLC Number included? (1 = yes, 0 = no)", HFILL} }, {&hf_gtp_flags_spare2, { "Reserved", "gtp.flags.reserved", FT_UINT8, BASE_DEC, NULL, GTP_SPARE2_MASK, "Reserved (shall be sent as '1' )", HFILL} }, {&hf_gtp_flags_e, { "Is Next Extension Header present?", "gtp.flags.e", FT_BOOLEAN, 8, TFS(&tfs_yes_no), GTP_E_MASK, "Is Next Extension Header present? (1 = yes, 0 = no)", HFILL} }, {&hf_gtp_flags_s, { "Is Sequence Number present?", "gtp.flags.s", FT_BOOLEAN, 8, TFS(&tfs_yes_no), GTP_S_MASK, "Is Sequence Number present? (1 = yes, 0 = no)", HFILL} }, {&hf_gtp_flags_pn, { "Is N-PDU number present?", "gtp.flags.pn", FT_BOOLEAN, 8, TFS(&tfs_yes_no), GTP_PN_MASK, "Is N-PDU number present? (1 = yes, 0 = no)", HFILL} }, {&hf_gtp_flow_ii, { "Flow Label Data II", "gtp.flow_ii", FT_UINT16, BASE_DEC, NULL, 0, "Downlink flow label data", HFILL} }, {&hf_gtp_flow_label, { "Flow label", "gtp.flow_label", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL} }, {&hf_gtp_flow_sig, { "Flow label Signalling", "gtp.flow_sig", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL} }, {&hf_gtp_gsn_addr_len, { "GSN Address Length", "gtp.gsn_addr_len", FT_UINT8, BASE_DEC, NULL, GTP_EXT_GSN_ADDR_LEN_MASK, NULL, HFILL} }, {&hf_gtp_gsn_addr_type, { "GSN Address Type", "gtp.gsn_addr_type", FT_UINT8, BASE_DEC, VALS(gsn_addr_type), GTP_EXT_GSN_ADDR_TYPE_MASK, NULL, HFILL} }, {&hf_gtp_gsn_ipv4, { "GSN address IPv4", "gtp.gsn_ipv4", FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL} }, {&hf_gtp_gsn_ipv6, { "GSN address IPv6", "gtp.gsn_ipv6", FT_IPv6, BASE_NONE, NULL, 0, NULL, HFILL} }, {&hf_gtp_length, { "Length", "gtp.length", FT_UINT16, BASE_DEC, NULL, 0, "Length (i.e. number of octets after TID or TEID)", HFILL} }, {&hf_gtp_map_cause, { "MAP cause", "gtp.map_cause", FT_UINT8, BASE_DEC, VALS(gsm_old_GSMMAPLocalErrorcode_vals), 0, NULL, HFILL} }, {&hf_gtp_message_type, { "Message Type", "gtp.message", FT_UINT8, BASE_HEX|BASE_EXT_STRING, >p_message_type_ext, 0x0, "GTP Message Type", HFILL} }, {&hf_gtp_ms_reason, { "MS not reachable reason", "gtp.ms_reason", FT_UINT8, BASE_DEC, VALS(ms_not_reachable_type), 0, NULL, HFILL} }, {&hf_gtp_ms_valid, { "MS validated", "gtp.ms_valid", FT_BOOLEAN, BASE_NONE, NULL, 0x0, NULL, HFILL} }, {&hf_gtp_node_ipv4, { "Node address IPv4", "gtp.node_ipv4", FT_IPv4, BASE_NONE, NULL, 0, "Recommended node address IPv4", HFILL} }, {&hf_gtp_node_ipv6, { "Node address IPv6", "gtp.node_ipv6", FT_IPv6, BASE_NONE, NULL, 0, "Recommended node address IPv6", HFILL} }, {&hf_gtp_node_name, { "Node name", "gtp.node_name", FT_UINT_STRING, BASE_NONE, NULL, 0, "Diameter Identity of the node", HFILL} }, {&hf_gtp_node_realm, { "Node realm", "gtp.node_realm", FT_UINT_STRING, BASE_NONE, NULL, 0, "Diameter Realm Identity of the node", HFILL} }, {&hf_gtp_npdu_number, { "N-PDU Number", "gtp.npdu_number", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL} }, {&hf_gtp_nsapi, { "NSAPI", "gtp.nsapi", FT_UINT8, BASE_DEC, NULL, 0x0f, "Network layer Service Access Point Identifier", HFILL} }, {&hf_gtp_qos_version, { "Version", "gtp.qos_version", FT_UINT8, BASE_HEX, NULL, 0, "Version of the QoS Profile", HFILL} }, {&hf_gtp_qos_spare1, { "Spare", "gtp.qos_spare1", FT_UINT8, BASE_DEC, NULL, GTP_EXT_QOS_SPARE1_MASK, "Spare (shall be sent as '00' )", HFILL} }, {&hf_gtp_qos_delay, { "QoS delay", "gtp.qos_delay", FT_UINT8, BASE_DEC, VALS(qos_delay_type), GTP_EXT_QOS_DELAY_MASK, "Quality of Service Delay Class", HFILL} }, {&hf_gtp_qos_reliability, { "QoS reliability", "gtp.qos_reliability", FT_UINT8, BASE_DEC, VALS(qos_reliability_type), GTP_EXT_QOS_RELIABILITY_MASK, "Quality of Service Reliability Class", HFILL} }, {&hf_gtp_qos_peak, { "QoS peak", "gtp.qos_peak", FT_UINT8, BASE_DEC, VALS(qos_peak_type), GTP_EXT_QOS_PEAK_MASK, "Quality of Service Peak Throughput", HFILL} }, {&hf_gtp_qos_spare2, { "Spare", "gtp.qos_spare2", FT_UINT8, BASE_DEC, NULL, GTP_EXT_QOS_SPARE2_MASK, "Spare (shall be sent as 0)", HFILL} }, {&hf_gtp_qos_precedence, { "QoS precedence", "gtp.qos_precedence", FT_UINT8, BASE_DEC, VALS(qos_precedence_type), GTP_EXT_QOS_PRECEDENCE_MASK, "Quality of Service Precedence Class", HFILL} }, {&hf_gtp_qos_spare3, { "Spare", "gtp.qos_spare3", FT_UINT8, BASE_DEC, NULL, GTP_EXT_QOS_SPARE3_MASK, "Spare (shall be sent as '000' )", HFILL} }, {&hf_gtp_qos_mean, { "QoS mean", "gtp.qos_mean", FT_UINT8, BASE_DEC|BASE_EXT_STRING, &qos_mean_type_ext, GTP_EXT_QOS_MEAN_MASK, "Quality of Service Mean Throughput", HFILL} }, {&hf_gtp_qos_al_ret_priority, { "Allocation/Retention priority", "gtp.qos_al_ret_priority", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_gtp_qos_traf_class, { "Traffic class", "gtp.qos_traf_class", FT_UINT8, BASE_DEC, VALS(qos_traf_class), GTP_EXT_QOS_TRAF_CLASS_MASK, NULL, HFILL} }, {&hf_gtp_qos_del_order, { "Delivery order", "gtp.qos_del_order", FT_UINT8, BASE_DEC, VALS(qos_del_order), GTP_EXT_QOS_DEL_ORDER_MASK, NULL, HFILL} }, {&hf_gtp_qos_del_err_sdu, { "Delivery of erroneous SDU", "gtp.qos_del_err_sdu", FT_UINT8, BASE_DEC, VALS(qos_del_err_sdu), GTP_EXT_QOS_DEL_ERR_SDU_MASK, NULL, HFILL} }, /* The SDU size and UL/DL bandwidth items take up one octet in the * frame, but are multiplied by various factors before being added * to the tree with proto_item_add_uint[_format_value]. */ {&hf_gtp_qos_max_sdu_size, { "Maximum SDU size", "gtp.qos_max_sdu_size", FT_UINT16, BASE_DEC, VALS(qos_max_sdu_size), 0, NULL, HFILL} }, {&hf_gtp_qos_max_ul, { "Maximum bit rate for uplink", "gtp.qos_max_ul", FT_UINT16, BASE_DEC, VALS(qos_max_ul), 0, NULL, HFILL} }, {&hf_gtp_qos_max_dl, { "Maximum bit rate for downlink", "gtp.qos_max_dl", FT_UINT16, BASE_DEC, VALS(qos_max_dl), 0, NULL, HFILL} }, {&hf_gtp_qos_res_ber, { "Residual BER", "gtp.qos_res_ber", FT_UINT8, BASE_DEC, VALS(qos_res_ber), GTP_EXT_QOS_RES_BER_MASK, "Residual Bit Error Rate", HFILL} }, {&hf_gtp_qos_sdu_err_ratio, { "SDU Error ratio", "gtp.qos_sdu_err_ratio", FT_UINT8, BASE_DEC, VALS(qos_sdu_err_ratio), GTP_EXT_QOS_SDU_ERR_RATIO_MASK, NULL, HFILL} }, {&hf_gtp_qos_trans_delay, { "Transfer delay", "gtp.qos_trans_delay", FT_UINT8, BASE_DEC|BASE_EXT_STRING, &qos_trans_delay_ext, GTP_EXT_QOS_TRANS_DELAY_MASK, NULL, HFILL} }, {&hf_gtp_qos_traf_handl_prio, { "Traffic handling priority", "gtp.qos_traf_handl_prio", FT_UINT8, BASE_DEC, VALS(qos_traf_handl_prio), GTP_EXT_QOS_TRAF_HANDL_PRIORITY_MASK, NULL, HFILL} }, {&hf_gtp_qos_guar_ul, { "Guaranteed bit rate for uplink", "gtp.qos_guar_ul", FT_UINT16, BASE_DEC, VALS(qos_guar_ul), 0, NULL, HFILL} }, {&hf_gtp_qos_guar_dl, { "Guaranteed bit rate for downlink", "gtp.qos_guar_dl", FT_UINT16, BASE_DEC, VALS(qos_guar_dl), 0, NULL, HFILL} }, {&hf_gtp_qos_spare4, { "Spare", "gtp.qos_spare4", FT_UINT8, BASE_DEC, NULL, GTP_EXT_QOS_SPARE4_MASK, "Spare (shall be sent as '000' )", HFILL} }, {&hf_gtp_qos_sig_ind, { "Signalling Indication", "gtp.sig_ind", FT_BOOLEAN, 8, TFS(>p_sig_ind), GTP_EXT_QOS_SIG_IND_MASK, NULL, HFILL} }, {&hf_gtp_qos_src_stat_desc, { "Source Statistics Descriptor", "gtp.src_stat_desc", FT_UINT8, BASE_DEC, VALS(src_stat_desc_vals), GTP_EXT_QOS_SRC_STAT_DESC_MASK, NULL, HFILL} }, { &hf_gtp_qos_arp, {"Allocation/Retention Priority", "gtp.qos_arp", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL} }, { &hf_gtp_qos_arp_pci, {"Pre-emption Capability (PCI)", "gtp.qos_arp_pci", FT_BOOLEAN, 16, TFS(&tfs_disabled_enabled), 0x0040, NULL, HFILL} }, { &hf_gtp_qos_arp_pl, {"Priority Level", "gtp.qos_arp_pl", FT_UINT16, BASE_DEC, NULL, 0x003c, NULL, HFILL} }, { &hf_gtp_qos_arp_pvi, {"Pre-emption Vulnerability (PVI)", "gtp.qos_arp_pvi", FT_BOOLEAN, 16, TFS(&tfs_disabled_enabled), 0x0001, NULL, HFILL} }, {&hf_gtp_qos_qci, {"QCI", "gtp.qos_qci", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL} }, {&hf_gtp_qos_ul_mbr, {"Uplink Maximum Bit Rate", "gtp.qos_ul_mbr", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL} }, {&hf_gtp_qos_dl_mbr, {"Downlink Maximum Bit Rate", "gtp.qos_dl_mbr", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL} }, {&hf_gtp_qos_ul_gbr, {"Uplink Guaranteed Bit Rate", "gtp.qos_ul_gbr", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL} }, {&hf_gtp_qos_dl_gbr, {"Downlink Guaranteed Bit Rate", "gtp.qos_dl_gbr", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL} }, {&hf_gtp_qos_ul_apn_ambr, {"Uplink APN Aggregate Maximum Bit Rate", "gtp.qos_ul_apn_ambr", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL} }, {&hf_gtp_qos_dl_apn_ambr, {"Downlink APN Aggregate Maximum Bit Rate", "gtp.qos_dl_apn_ambr", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL} }, {&hf_gtp_pkt_flow_id, { "Packet Flow ID", "gtp.pkt_flow_id", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_gtp_ptmsi, { "P-TMSI", "gtp.ptmsi", FT_UINT32, BASE_DEC_HEX, NULL, 0, "Packet-Temporary Mobile Subscriber Identity", HFILL} }, {&hf_gtp_ptmsi_sig, { "P-TMSI Signature", "gtp.ptmsi_sig", FT_UINT24, BASE_HEX, NULL, 0, NULL, HFILL} }, {&hf_gtp_rab_gtpu_dn, { "Downlink GTP-U seq number", "gtp.rab_gtp_dn", FT_UINT16, BASE_DEC, NULL, 0, "Downlink GTP-U sequence number", HFILL} }, {&hf_gtp_rab_gtpu_up, { "Uplink GTP-U seq number", "gtp.rab_gtp_up", FT_UINT16, BASE_DEC, NULL, 0, "Uplink GTP-U sequence number", HFILL} }, {&hf_gtp_rab_pdu_dn, { "Downlink next PDCP-PDU seq number", "gtp.rab_pdu_dn", FT_UINT16, BASE_DEC, NULL, 0, "Downlink next PDCP-PDU sequence number", HFILL} }, {&hf_gtp_rab_pdu_up, { "Uplink next PDCP-PDU seq number", "gtp.rab_pdu_up", FT_UINT16, BASE_DEC, NULL, 0, "Uplink next PDCP-PDU sequence number", HFILL} }, {&hf_gtp_uli_geo_loc_type, { "Geographic Location Type", "gtp.geo_loc_type", FT_UINT8, BASE_DEC, VALS(geographic_location_type), 0, NULL, HFILL} }, {&hf_gtp_cgi_ci, { "Cell ID (CI)", "gtp.cgi_ci", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_gtp_sai_sac, { "Service Area Code (SAC)", "gtp.sai_sac", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_gtp_rai_rac, { "Routing Area Code (RAC)", "gtp.rai_rac", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_gtp_lac, { "Location Area Code (LAC)", "gtp.lac", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL} }, { &hf_gtp_tac, {"TAC", "gtp.tac", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_gtp_ranap_cause, { "RANAP cause", "gtp.ranap_cause", FT_UINT16, BASE_DEC|BASE_EXT_STRING, &ranap_cause_type_ext, 0, NULL, HFILL} }, {&hf_gtp_recovery, { "Recovery", "gtp.recovery", FT_UINT8, BASE_DEC, NULL, 0, "Restart counter", HFILL} }, {&hf_gtp_reorder, { "Reordering required", "gtp.reorder", FT_BOOLEAN, BASE_NONE, NULL, 0x0, NULL, HFILL} }, {&hf_gtp_rnc_ipv4, { "RNC address IPv4", "gtp.rnc_ipv4", FT_IPv4, BASE_NONE, NULL, 0, "Radio Network Controller address IPv4", HFILL} }, {&hf_gtp_rnc_ipv6, { "RNC address IPv6", "gtp.rnc_ipv6", FT_IPv6, BASE_NONE, NULL, 0, "Radio Network Controller address IPv6", HFILL} }, {&hf_gtp_rp, { "Radio Priority", "gtp.rp", FT_UINT8, BASE_DEC, NULL, GTPv1_EXT_RP_MASK, "Radio Priority for uplink tx", HFILL} }, {&hf_gtp_rp_nsapi, { "NSAPI in Radio Priority", "gtp.rp_nsapi", FT_UINT8, BASE_DEC, NULL, GTPv1_EXT_RP_NSAPI_MASK, "Network layer Service Access Point Identifier in Radio Priority", HFILL} }, {&hf_gtp_rp_sms, { "Radio Priority SMS", "gtp.rp_sms", FT_UINT8, BASE_DEC, NULL, 0, "Radio Priority for MO SMS", HFILL} }, {&hf_gtp_rp_spare, { "Reserved", "gtp.rp_spare", FT_UINT8, BASE_DEC, NULL, GTPv1_EXT_RP_SPARE_MASK, "Spare bit", HFILL} }, {&hf_gtp_sel_mode, { "Selection mode", "gtp.sel_mode", FT_UINT8, BASE_DEC, VALS(sel_mode_type), 0x03, NULL, HFILL} }, {&hf_gtp_seq_number, { "Sequence number", "gtp.seq_number", FT_UINT16, BASE_HEX_DEC, NULL, 0, NULL, HFILL} }, {&hf_gtp_session, { "Session", "gtp.session", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL } }, {&hf_gtp_sndcp_number, { "SNDCP N-PDU LLC Number", "gtp.sndcp_number", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL} }, {&hf_gtp_tear_ind, { "Teardown Indicator", "gtp.tear_ind", FT_BOOLEAN, BASE_NONE, NULL, 0x0, NULL, HFILL} }, {&hf_gtp_teid, { "TEID", "gtp.teid", FT_UINT32, BASE_HEX_DEC, NULL, 0, "Tunnel Endpoint Identifier", HFILL} }, {&hf_gtp_teid_cp, { "TEID Control Plane", "gtp.teid_cp", FT_UINT32, BASE_HEX_DEC, NULL, 0, "Tunnel Endpoint Identifier Control Plane", HFILL} }, {&hf_gtp_uplink_teid_cp, { "Uplink TEID Control Plane", "gtp.uplink_teid_cp", FT_UINT32, BASE_HEX_DEC, NULL, 0, "Uplink Tunnel Endpoint Identifier Control Plane", HFILL} }, {&hf_gtp_teid_data, { "TEID Data I", "gtp.teid_data", FT_UINT32, BASE_HEX_DEC, NULL, 0, "Tunnel Endpoint Identifier Data I", HFILL} }, {&hf_gtp_uplink_teid_data, { "Uplink TEID Data I", "gtp.uplink_teid_data", FT_UINT32, BASE_HEX_DEC, NULL, 0, "UplinkTunnel Endpoint Identifier Data I", HFILL} }, {&hf_gtp_teid_ii, { "TEID Data II", "gtp.teid_ii", FT_UINT32, BASE_HEX_DEC, NULL, 0, "Tunnel Endpoint Identifier Data II", HFILL} }, {&hf_gtp_tid, { "TID", "gtp.tid", FT_STRING, BASE_NONE, NULL, 0, "Tunnel Identifier", HFILL} }, {&hf_gtp_tlli, { "TLLI", "gtp.tlli", FT_UINT32, BASE_HEX, NULL, 0, "Temporary Logical Link Identity", HFILL} }, {&hf_gtp_tr_comm, { "Packet transfer command", "gtp.tr_comm", FT_UINT8, BASE_DEC, VALS(tr_comm_type), 0, NULL, HFILL} }, {&hf_gtp_trace_ref, { "Trace reference", "gtp.trace_ref", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL} }, {&hf_gtp_trace_type, { "Trace type", "gtp.trace_type", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL} }, {&hf_gtp_user_addr_pdp_org, { "PDP type organization", "gtp.user_addr_pdp_org", FT_UINT8, BASE_DEC, VALS(pdp_org_type), 0, NULL, HFILL} }, {&hf_gtp_user_addr_pdp_type, { "PDP type number", "gtp.user_addr_pdp_type", FT_UINT8, BASE_HEX, VALS(pdp_type), 0, NULL, HFILL} }, {&hf_gtp_user_ipv4, { "End user address IPv4", "gtp.user_ipv4", FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL} }, {&hf_gtp_user_ipv6, { "End user address IPv6", "gtp.user_ipv6", FT_IPv6, BASE_NONE, NULL, 0, NULL, HFILL} }, {&hf_gtp_security_mode, { "Security Mode", "gtp.security_mode", FT_UINT8, BASE_DEC, VALS(mm_sec_modep), 0xc0, NULL, HFILL} }, {&hf_gtp_no_of_vectors, { "No of Vectors", "gtp.no_of_vectors", FT_UINT8, BASE_DEC, NULL, 0x38, NULL, HFILL} }, {&hf_gtp_cipher_algorithm, { "Cipher Algorithm", "gtp.cipher_algorithm", FT_UINT8, BASE_DEC, VALS(gtp_cipher_algorithm), 0x07, NULL, HFILL} }, {&hf_gtp_cksn_ksi, { "Ciphering Key Sequence Number (CKSN)/Key Set Identifier (KSI)", "gtp.cksn_ksi", FT_UINT8, BASE_DEC, NULL, 0x07, "CKSN/KSI", HFILL} }, {&hf_gtp_cksn, { "Ciphering Key Sequence Number (CKSN)", "gtp.cksn", FT_UINT8, BASE_DEC, NULL, 0x07, "CKSN", HFILL} }, {&hf_gtp_ksi, { "Key Set Identifier (KSI)", "gtp.ksi", FT_UINT8, BASE_DEC, NULL, 0x07, "KSI", HFILL} }, {&hf_gtp_ext_length, { "Length", "gtp.ext_length", FT_UINT16, BASE_DEC, NULL, 0x0, "IE Length", HFILL} }, {&hf_gtp_utran_field, { "UTRAN Transparent Field", "gtp.utran_field", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL} }, {&hf_gtp_ext_apn_res, { "Restriction Type", "gtp.ext_apn_res", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL} }, {&hf_gtp_ext_rat_type, { "RAT Type", "gtp.ext_rat_type", FT_UINT8, BASE_DEC, VALS(gtp_ext_rat_type_vals), 0x0, NULL, HFILL} }, {&hf_gtp_ext_imeisv, { "IMEI(SV)", "gtp.ext_imeisv", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL} }, { &hf_gtp_target_rnc_id, { "targetRNC-ID", "gtp.targetRNC_ID", FT_UINT16, BASE_HEX, NULL, 0x0fff, NULL, HFILL } }, { &hf_gtp_target_ext_rnc_id, { "Extended RNC-ID", "gtp.target_ext_RNC_ID", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL } }, {&hf_gtp_bssgp_cause, { "BSSGP Cause", "gtp.bssgp_cause", FT_UINT8, BASE_DEC|BASE_EXT_STRING, &bssgp_cause_vals_ext, 0, NULL, HFILL} }, { &hf_gtp_bssgp_ra_discriminator, { "Routing Address Discriminator", "gtp.bssgp.rad", FT_UINT8, BASE_DEC, VALS(gtp_bssgp_ra_discriminator_vals), 0x0f, NULL, HFILL } }, {&hf_gtp_sapi, { "PS Handover XID SAPI", "gtp.ps_handover_xid_sapi", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL} }, {&hf_gtp_xid_par_len, { "PS Handover XID parameter length", "gtp.ps_handover_xid_par_len", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL} }, {&hf_gtp_rep_act_type, { "Action", "gtp.ms_inf_chg_rep_act", FT_UINT8, BASE_DEC, VALS(chg_rep_act_type_vals), 0x0, NULL, HFILL} }, {&hf_gtp_correlation_id, { "Correlation-ID", "gtp.correlation_id", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_gtp_earp_pci, { "PCI Pre-emption Capability", "gtp.EARP_pre_emption_Capability", FT_BOOLEAN, 8, TFS(&tfs_disabled_enabled), 0x40, NULL, HFILL} }, {&hf_gtp_earp_pl, { "PL Priority Level", "gtp.EARP_priority_level", FT_UINT8, BASE_DEC, NULL, 0x3C, NULL, HFILL} }, {&hf_gtp_earp_pvi, { "PVI Pre-emption Vulnerability", "gtp.EARP_pre_emption_par_vulnerability", FT_BOOLEAN, 8, TFS(&tfs_disabled_enabled), 0x01, NULL, HFILL} }, {&hf_gtp_ext_comm_flags_uasi, { "UASI", "gtp.ext_comm_flags.uasi", FT_BOOLEAN, 8, NULL, 0x80, NULL, HFILL} }, {&hf_gtp_ext_comm_flags_bdwi, { "BDWI", "gtp.ext_comm_flags.bdwi", FT_BOOLEAN, 8, NULL, 0x40, NULL, HFILL} }, {&hf_gtp_ext_comm_flags_pcri, { "PCRI", "gtp.ext_comm_flags.pcri", FT_BOOLEAN, 8, NULL, 0x20, NULL, HFILL} }, {&hf_gtp_ext_comm_flags_vb, { "VB", "gtp.ext_comm_flags.vb", FT_BOOLEAN, 8, NULL, 0x10, NULL, HFILL} }, {&hf_gtp_ext_comm_flags_retloc, { "RetLoc", "gtp.ext_comm_flags.retloc", FT_BOOLEAN, 8, NULL, 0x08, NULL, HFILL} }, {&hf_gtp_ext_comm_flags_cpsr, { "CPSR", "gtp.ext_comm_flags.cpsr", FT_BOOLEAN, 8, NULL, 0x04, NULL, HFILL} }, {&hf_gtp_ext_comm_flags_ccrsi, { "CCRSI", "gtp.ext_comm_flags.ccrsi", FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL} }, {&hf_gtp_ext_comm_flags_unauthenticated_imsi, { "Unauthenticated IMSI", "gtp.ext_comm_flags.unauthenticated_imsi", FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL} }, {&hf_gtp_csg_id, { "CSG ID", "gtp.csg_id", FT_UINT32, BASE_DEC, NULL, 0x07FFFFFF, NULL, HFILL} }, {&hf_gtp_access_mode, { "Access Mode", "gtp.access_mode", FT_UINT8, BASE_DEC, VALS(gtp_access_mode_vals), 0xC0, NULL, HFILL } }, {&hf_gtp_cmi, { "CSG Membership Indication (CMI)", "gtp.cmi", FT_BOOLEAN, 8, TFS(&tfs_no_yes), 0x01, NULL, HFILL} }, {&hf_gtp_csg_inf_rep_act_ucicsg, { "UCICSG", "gtp.csg_info_rep_act.ucicsg", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x01, "Report UCI when the UE enters/leaves/accesses CSG Cell", HFILL} }, {&hf_gtp_csg_inf_rep_act_ucishc, { "UCISHC", "gtp.csg_info_rep_act.ucishc", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x02, "Report UCI when the UE enters/leaves/accesses Subscribed Hybrid Cell", HFILL} }, {&hf_gtp_csg_inf_rep_act_uciuhc, { "UCIUHC", "gtp.csg_info_rep_act.uciuhc", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x04, "Report UCI when the UE enters/leaves/accesses Unsubscribed Hybrid Cell", HFILL} }, {&hf_gtp_ext_comm_flags_II_pnsi, { "PNSI", "gtp.ext_comm_flags_II_pnsi", FT_UINT8, BASE_DEC, NULL, 0x01, NULL, HFILL} }, {&hf_gtp_ext_comm_flags_II_dtci, { "DTCI", "gtp.ext_comm_flags_II_dtci", FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL} }, {&hf_gtp_ext_comm_flags_II_pmtsmi, { "PMTSMI", "gtp.ext_comm_flags_II_pmtsmi", FT_UINT8, BASE_DEC, NULL, 0x04, NULL, HFILL} }, {&hf_gtp_ext_comm_flags_II_spare, { "SPARE", "gtp.ext_comm_flags_II_spare", FT_UINT8, BASE_HEX, NULL, 0xF8, NULL, HFILL} }, {&hf_gtp_ciot_opt_sup_ind_sgni_pdn, { "SGNI PDN", "gtp.ciot_opt_sup_ind_sgni_pdn", FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL} }, {&hf_gtp_ciot_opt_sup_ind_scni_pdn, { "SCNI PDN", "gtp.ciot_opt_sup_ind_scni_pdn", FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL} }, {&hf_gtp_ciot_opt_sup_ind_spare, { "SPARE", "gtp.ciot_opt_sup_ind_spare", FT_UINT8, BASE_HEX, NULL, 0xfc, NULL, HFILL} }, { &hf_gtp_up_fun_sel_ind_flags_dcnr, { "DCNR", "gtp.up_fun_sel_ind_flags_dcnr", FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL} }, { &hf_gtp_up_fun_sel_ind_flags_spare, { "SPARE", "gtp.up_fun_sel_ind_flags_spare", FT_UINT8, BASE_HEX, NULL, 0xfe, NULL, HFILL} }, {&hf_gtp_cdr_app, { "Application Identifier", "gtp.cdr_app", FT_UINT8, BASE_DEC, NULL, 0xf0, NULL, HFILL} }, { &hf_gtp_cdr_rel, { "Release Identifier", "gtp.cdr_rel", FT_UINT8, BASE_DEC, NULL, 0x0f, NULL, HFILL} }, { &hf_gtp_cdr_ver, { "Version Identifier", "gtp.cdr_ver", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL} }, { &hf_gtp_cdr_rel_ext, { "Release Identifier Extension", "gtp.cdr_rel_ext", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL} }, { &hf_gtp_cdr_length, { "Length", "gtp.cdr_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL} }, { &hf_gtp_cdr_context, { "Context", "gtp.cdr_context", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL} }, {&hf_gtp_cmn_flg_ppc, { "Prohibit Payload Compression", "gtp.cmn_flg.ppc", FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL} }, {&hf_gtp_cmn_flg_mbs_srv_type, { "MBMS Service Type", "gtp.cmn_flg.mbs_srv_type", FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL} }, {&hf_gtp_cmn_flg_mbs_ran_pcd_rdy, { "RAN Procedures Ready", "gtp.cmn_flg.mbs_ran_pcd_rdy", FT_BOOLEAN, 8, NULL, 0x04, NULL, HFILL} }, {&hf_gtp_cmn_flg_mbs_cnt_inf, { "MBMS Counting Information", "gtp.cmn_flg.mbs_cnt_inf", FT_BOOLEAN, 8, NULL, 0x08, NULL, HFILL} }, {&hf_gtp_cmn_flg_no_qos_neg, { "No QoS negotiation", "gtp.cmn_flg.no_qos_neg", FT_BOOLEAN, 8, NULL, 0x10, NULL, HFILL} }, {&hf_gtp_cmn_flg_nrsn, { "NRSN bit field", "gtp.cmn_flg.nrsn", FT_BOOLEAN, 8, NULL, 0x20, NULL, HFILL} }, {&hf_gtp_cmn_flg_upgrd_qos_sup, { "Upgrade QoS Supported", "gtp.cmn_flg.upgrd_qos_sup", FT_BOOLEAN, 8, NULL, 0x40, NULL, HFILL} }, {&hf_gtp_cmn_flg_dual_addr_bearer_flg, { "Dual Address Bearer Flag", "gtp.cmn_flg.dual_addr_bearer_flg", FT_BOOLEAN, 8, NULL, 0x80, NULL, HFILL} }, {&hf_gtp_linked_nsapi, { "Linked NSAPI", "gtp.linked_nsapi", FT_UINT8, BASE_DEC, NULL, 0xf0, NULL, HFILL} }, {&hf_gtp_enh_nsapi, { "Enhanced NSAPI", "gtp.enhanced_nsapi", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL} }, {&hf_gtp_tmgi, { "Temporary Mobile Group Identity (TMGI)", "gtp.tmgi", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL} }, {&hf_gtp_no_of_mbms_sa_codes, { "Number of MBMS service area codes", "gtp.no_of_mbms_sa_codes", FT_UINT8, BASE_DEC, NULL, 0x0, "Number N of MBMS service area codes", HFILL} }, {&hf_gtp_mbms_ses_dur_days, { "Estimated session duration days", "gtp.mbms_ses_dur_days", FT_UINT24, BASE_DEC, NULL, 0x00007F, NULL, HFILL} }, {&hf_gtp_mbms_ses_dur_s, { "Estimated session duration seconds", "gtp.mbms_ses_dur_s", FT_UINT24, BASE_DEC, NULL, 0xFFFF80, NULL, HFILL} }, {&hf_gtp_mbms_sa_code, { "MBMS service area code", "gtp.mbms_sa_code", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL} }, {&hf_gtp_trace_ref2, { "Trace Reference2", "gtp.trace_ref2", FT_UINT24, BASE_HEX, NULL, 0, NULL, HFILL} }, {&hf_gtp_trace_rec_session_ref, { "Trace Recording Session Reference", "gtp.trace_rec_session_ref", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL} }, {&hf_gtp_trace_triggers_ggsn_mbms, { "MBMS Context", "gtp.trace_triggers.ggsn.mbms", FT_BOOLEAN, 8, TFS(&tfs_should_be_traced_should_not_be_traced), 0x2, NULL, HFILL} }, {&hf_gtp_trace_triggers_ggsn_pdp, { "PDP Context", "gtp.trace_triggers.ggsn.pdp", FT_BOOLEAN, 8, TFS(&tfs_should_be_traced_should_not_be_traced), 0x1, NULL, HFILL} }, {&hf_gtp_trace_triggers_ggsn, { "Triggering events in GGSN", "gtp.trace_triggers.ggsn", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL} }, {&hf_gtp_trace_depth, { "Trace Depth", "gtp.trace_depth", FT_UINT8, BASE_DEC, VALS(gtp_trace_depth_vals), 0, NULL, HFILL} }, {&hf_gtp_trace_loi_ggsn_gmb, { "Gmb", "gtp.trace_loi.ggsn.gmb", FT_BOOLEAN, 8, TFS(&tfs_should_be_traced_should_not_be_traced), 0x4, NULL, HFILL} }, {&hf_gtp_trace_loi_ggsn_gi, { "Gi", "gtp.trace_loi.ggsn.gi", FT_BOOLEAN, 8, TFS(&tfs_should_be_traced_should_not_be_traced), 0x2, NULL, HFILL} }, {&hf_gtp_trace_loi_ggsn_gn, { "Gn", "gtp.trace_loi.ggsn.gn", FT_BOOLEAN, 8, TFS(&tfs_should_be_traced_should_not_be_traced), 0x1, NULL, HFILL} }, {&hf_gtp_trace_loi_ggsn, { "List of interfaces in GGSN", "gtp.trace_loi.ggsn", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL} }, {&hf_gtp_trace_activity_control, { "Trace Activity Control", "gtp.trace_activity_control", FT_UINT8, BASE_DEC, VALS(gtp_trace_activity_control_vals), 0, NULL, HFILL} }, {&hf_gtp_hop_count, { "Hop Counter", "gtp.hop_count", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL} }, {&hf_gtp_mbs_2g_3g_ind, { "MBMS 2G/3G Indicator", "gtp.mbs_2g_3g_ind", FT_UINT8, BASE_DEC, VALS(gtp_mbs_2g_3g_ind_vals), 0x0, NULL, HFILL} }, {&hf_gtp_trace_triggers_bm_sc_mbms, { "MBMS Multicast service activation", "gtp.trace_triggers.bm_sc.mbms", FT_BOOLEAN, 8, TFS(&tfs_should_be_traced_should_not_be_traced), 0x1, NULL, HFILL} }, {&hf_gtp_trace_triggers_bm_sc, { "Triggering events in BM-SC", "gtp.trace_triggers.bm_sc", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL} }, {&hf_gtp_trace_loi_bm_sc_gmb, { "Gmb", "gtp.trace_loi.bm_sc.gmb", FT_BOOLEAN, 8, TFS(&tfs_should_be_traced_should_not_be_traced), 0x1, NULL, HFILL} }, {&hf_gtp_trace_loi_bm_sc, { "List of interfaces in BM-SC", "gtp.trace_loi.bm_sc", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL} }, {&hf_gtp_time_2_dta_tr, { "Time to MBMS Data Transfer", "gtp.time_2_dta_tr", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL} }, {&hf_gtp_target_lac, { "Target Location Area Code (LAC)", "gtp.target_lac", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_gtp_target_rac, { "Target Routing Area Code (RAC)", "gtp.target_rac", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_gtp_target_ci, { "Target Cell ID (CI)", "gtp.target_ci", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL} }, { &hf_gtp_source_type, { "Source Type", "gtp.source_type", FT_UINT8, BASE_DEC, VALS(gtp_source_type_vals), 0x0, NULL, HFILL} }, {&hf_gtp_source_lac, { "Source Location Area Code (LAC)", "gtp.source_lac", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_gtp_source_rac, { "Source Routing Area Code (RAC)", "gtp.source_rac", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_gtp_source_ci, { "Source Cell ID (CI)", "gtp.source_ci", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL} }, { &hf_gtp_source_rnc_id, { "Source RNC-ID", "gtp.source.rnc_id", FT_UINT16, BASE_DEC, NULL, 0x0fff, NULL, HFILL } }, { &hf_gtp_ext_ei, { "Error Indication (EI)", "gtp.ei", FT_UINT8, BASE_DEC, NULL, 0x04, NULL, HFILL} }, {&hf_gtp_ext_gcsi, { "GPRS-CSI (GCSI)", "gtp.gcsi", FT_UINT8, BASE_DEC, NULL, 0x02, NULL, HFILL} }, { &hf_gtp_ext_dti, { "Direct Tunnel Indicator (DTI)", "gtp.dti", FT_UINT8, BASE_DEC, NULL, 0x01, NULL, HFILL} }, { &hf_gtp_ra_prio_lcs, { "Radio Priority LCS", "gtp.raplcs", FT_UINT8, BASE_DEC, NULL, 0x07, NULL, HFILL} }, { &hf_gtp_bcm, { "Bearer Control Mode", "gtp.bcm", FT_UINT8, BASE_DEC, VALS(gtp_pdp_bcm_type_vals), 0, NULL, HFILL} }, { &hf_gtp_fqdn, { "FQDN", "gtp.fqdn", FT_STRING, BASE_NONE, NULL, 0, "Fully Qualified Domain Name", HFILL} }, { &hf_gtp_rim_routing_addr, { "RIM Routing Address value", "gtp.rim_routing_addr_val", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL} }, { &hf_gtp_mbms_flow_id, { "MBMS Flow Identifier", "gtp.mbms_flow_id", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL} }, { &hf_gtp_mbms_dist_indic, { "Distribution Indication", "gtp.mbms_dist_indic", FT_UINT8, BASE_DEC, VALS(gtp_mbms_dist_indic_vals), 0x03, NULL, HFILL} }, { &hf_gtp_ext_apn_ambr_ul, { "APN-AMBR for Uplink", "gtp.apn_ambr_ul", FT_INT32, BASE_DEC|BASE_UNIT_STRING, UNS(&units_kbps), 0x0, NULL, HFILL} }, { &hf_gtp_ext_apn_ambr_dl, { "APN-AMBR for Downlink", "gtp.apn_ambr_dl", FT_INT32, BASE_DEC|BASE_UNIT_STRING, UNS(&units_kbps), 0x0, NULL, HFILL} }, { &hf_gtp_ext_sub_ue_ambr_ul, { "Subscribed UE-AMBR for Uplink", "gtp.sub_ue_ambr_ul", FT_INT32, BASE_DEC|BASE_UNIT_STRING, UNS(&units_kbps), 0x0, NULL, HFILL} }, { &hf_gtp_ext_sub_ue_ambr_dl, { "Subscribed UE-AMBR for Downlink", "gtp.sub_ue_ambr_dl", FT_INT32, BASE_DEC|BASE_UNIT_STRING, UNS(&units_kbps), 0x0, NULL, HFILL} }, { &hf_gtp_ext_auth_ue_ambr_ul, { "Authorized UE-AMBR for Uplink", "gtp.auth_ue_ambr_ul", FT_INT32, BASE_DEC|BASE_UNIT_STRING, UNS(&units_kbps), 0x0, NULL, HFILL} }, { &hf_gtp_ext_auth_ue_ambr_dl, { "Authorized UE-AMBR for Downlink", "gtp.auth_ue_ambr_dl", FT_INT32, BASE_DEC|BASE_UNIT_STRING, UNS(&units_kbps), 0x0, NULL, HFILL} }, { &hf_gtp_ext_auth_apn_ambr_ul, { "Authorized APN-AMBR for Uplink", "gtp.auth_apn_ambr_ul", FT_INT32, BASE_DEC|BASE_UNIT_STRING, UNS(&units_kbps), 0x0, NULL, HFILL} }, { &hf_gtp_ext_auth_apn_ambr_dl, { "Authorized APN-AMBR for Downlink", "gtp.auth_apn_ambr_dl", FT_INT32, BASE_DEC|BASE_UNIT_STRING, UNS(&units_kbps), 0x0, NULL, HFILL} }, { &hf_gtp_ext_ggsn_back_off_time_units, { "Timer unit", "gtp.ggsn_back_off_time_units", FT_UINT8, BASE_DEC, VALS(gtp_ggsn_back_off_time_units_vals), 0xe0, NULL, HFILL} }, { &hf_gtp_ext_ggsn_back_off_timer, { "Timer value", "gtp.ggsn_back_off_timer", FT_UINT8, BASE_DEC, NULL, 0x1f, NULL, HFILL} }, { &hf_gtp_lapi, { "LAPI", "gtp.lapi", FT_BOOLEAN, 8, TFS(>p_lapi_tfs), 0x01, "Low Access Priority Indication", HFILL} }, { &hf_gtp_higher_br_16mb_flg, { "Higher bitrates than 16 Mbps flag", "gtp.higher_br_16mb_flg", FT_UINT8, BASE_DEC, VALS(gtp_higher_br_16mb_flg_vals), 0x0, NULL, HFILL} }, { &hf_gtp_max_mbr_apn_ambr_ul, { "Max MBR/APN-AMBR for uplink", "gtp.max_mbr_apn_ambr_ul", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL} }, { &hf_gtp_max_mbr_apn_ambr_dl, { "Max MBR/APN-AMBR for downlink", "gtp.max_mbr_apn_ambr_dl", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL} }, { &hf_gtp_uli_timestamp, { "ULI Timestamp", "gtp.uli_timestamp", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL } }, { &hf_gtp_lhn_id, { "Local Home Network ID", "gtp.lhn_id", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL} }, { &hf_gtp_sel_entity, { "Selection Entity", "gtp.selection_entity", FT_UINT8, BASE_DEC, VALS(gtp_sel_entity_vals), 0x3, NULL, HFILL} }, { &hf_gtp_ue_usage_type_value, { "UE Usage Type value", "gtp.ue_usage_type_value", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL} }, { &hf_gtp_scef_id_length, { "SCEF-ID length", "gtp.scef_id_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL} }, { &hf_gtp_scef_id, { "SCEF-ID", "gtp.scef_id", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL} }, { &hf_gtp_iov_updates_counter, { "IOV_updates counter", "gtp.iov_updates_counter", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL} }, { &hf_gtp_mapped_ue_usage_type, { "Mapped UE Usage Type", "gtp.mapped_ue_usage_type", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL} }, { &hf_gtp_rand, { "RAND", "gtp.rand", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_sres, { "SRES", "gtp.sres", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_kc, { "Kc", "gtp.kc", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_xres_length, { "XRES length", "gtp.xres_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_xres, { "XRES", "gtp.xres", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_quintuplet_ciphering_key, { "Quintuplet Ciphering Key", "gtp.quintuplet_ciphering_key", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_quintuplet_integrity_key, { "Quintuplet Integrity Key", "gtp.quintuplet_integrity_key", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_authentication_length, { "Authentication length", "gtp.authentication_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_auth, { "AUTH", "gtp.auth", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_ciphering_key_ck, { "Ciphering key CK", "gtp.ciphering_key_ck", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_integrity_key_ik, { "Integrity key IK", "gtp.integrity_key_ik", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_quintuplets_length, { "Quintuplets length", "gtp.quintuplets_length", FT_UINT16, BASE_DEC_HEX, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_ciphering_key_kc, { "Ciphering key Kc", "gtp.ciphering_key_kc", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_container_length, { "Container length", "gtp.container_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_extended_end_user_address, { "Extended End User Address", "gtp.extended_end_user_address", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x80, NULL, HFILL }}, { &hf_gtp_vplmn_address_allowed, { "VPLMN address allowed", "gtp.vplmn_address_allowed", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x40, NULL, HFILL }}, { &hf_gtp_activity_status_indicator, { "Activity Status Indicator", "gtp.activity_status_indicator", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x20, NULL, HFILL }}, { &hf_gtp_reordering_required, { "Reordering required", "gtp.reordering_required", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x10, NULL, HFILL }}, { &hf_gtp_pdp_cntxt_sapi, { "SAPI", "gtp.pdp_cntxt.sapi", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL }}, { &hf_gtp_sequence_number_down, { "Sequence number down", "gtp.sequence_number_down", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_sequence_number_up, { "Sequence number up", "gtp.sequence_number_up", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_send_n_pdu_number, { "Send N-PDU number", "gtp.send_n_pdu_number", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_receive_n_pdu_number, { "Receive N-PDU number", "gtp.receive_n_pdu_number", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_uplink_flow_label_signalling, { "Uplink flow label signalling", "gtp.uplink_flow_label_signalling", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_pdp_context_identifier, { "PDP context identifier", "gtp.pdp_context_identifier", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_pdp_organization, { "PDP organization", "gtp.pdp_organization", FT_UINT8, BASE_DEC, VALS(pdp_org_type), 0x0F, NULL, HFILL }}, { &hf_gtp_pdp_type, { "PDP type", "gtp.pdp_type", FT_UINT8, BASE_DEC, VALS(pdp_type), 0x0, NULL, HFILL }}, { &hf_gtp_pdp_address_length, { "PDP address length", "gtp.pdp_address_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_pdp_address_ipv4, { "PDP address", "gtp.pdp_address.ipv4", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_pdp_address_ipv6, { "PDP address", "gtp.pdp_address.ipv6", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_sgsn_address_for_control_plane_ipv4, { "SGSN Address for control plane", "gtp.sgsn_address_for_control_plane.ipv4", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_sgsn_address_for_control_plane_ipv6, { "SGSN Address for control plane", "gtp.sgsn_address_for_control_plane.ipv6", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_sgsn_address_for_user_traffic_ipv4, { "SGSN Address for User Traffic", "gtp.sgsn_address_for_user_traffic.ipv4", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_sgsn_address_for_user_traffic_ipv6, { "SGSN Address for User Traffic", "gtp.sgsn_address_for_user_traffic.ipv6", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_ggsn_address_length, { "GGSN address length", "gtp.ggsn_address_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_ggsn_address_for_control_plane_ipv4, { "GGSN Address for control plane", "gtp.ggsn_address_for_control_plane.ipv4", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_ggsn_address_for_control_plane_ipv6, { "GGSN Address for control plane", "gtp.ggsn_address_for_control_plane.ipv6", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_ggsn_address_for_user_traffic_ipv4, { "GGSN Address for User Traffic", "gtp.ggsn_address_for_user_traffic.ipv4", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_ggsn_address_for_user_traffic_ipv6, { "GGSN Address for User Traffic", "gtp.ggsn_address_for_user_traffic.ipv6", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_apn_length, { "APN length", "gtp.apn_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_transaction_identifier, { "Transaction identifier", "gtp.transaction_identifier", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_gsn_address_length, { "GSN address length", "gtp.gsn_address_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_gsn_address_information_element_length, { "GSN address Information Element length", "gtp.gsn_address_information_element_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_tft_length, { "TFT length", "gtp.tft_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_rab_setup_length, { "RAB setup length", "gtp.rab_setup_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_timezone, { "Timezone", "gtp.timezone", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_timezone_dst, { "DST", "gtp.timezone_dst", FT_UINT8, BASE_DEC, VALS(daylight_saving_time_vals), 0x03, NULL, HFILL }}, { &hf_gtp_rfsp_index, { "RFSP Index", "gtp.rfsp_index", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_fqdn_length, { "FQDN length", "gtp.fqdn_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_number_of_data_records, { "Number of data records", "gtp.number_of_data_records", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_data_record_format, { "Data record format", "gtp.data_record_format", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_node_address_length, { "Node address length", "gtp.node_address_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_seq_num_released, { "Sequence number released", "gtp.seq_num_released", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_seq_num_canceled, { "Sequence number cancelled", "gtp.seq_num_canceled", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_requests_responded, { "Requests responded", "gtp.requests_responded", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_hyphen_separator, { "Hyphen separator: -", "gtp.hyphen_separator", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_ms_network_cap_content_len, { "Length of MS network capability contents", "gtp.ms_network_cap_content_len", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_iei, { "IEI", "gtp.iei", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_iei_mobile_id_len, { "Length", "gtp.iei.mobile_id_len", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_qos_umts_length, { "Length", "gtp.qos_umts_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_num_ext_hdr_types, { "Number of Extension Header Types in list (i.e., length)", "gtp.num_ext_hdr_types", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_gtp_ext_hdr_type, { "Extension Header Type", "gtp.ext_hdr_type", FT_UINT8, BASE_DEC, VALS(next_extension_header_fieldvals), 0x0, NULL, HFILL }}, { &hf_gtp_tpdu_data, { "T-PDU Data", "gtp.tpdu_data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_gtp_ext_enb_type, { "enb_type", "gtp.enb_type", FT_UINT8, BASE_DEC, VALS(gtp_enb_type_vals), 0x0, NULL, HFILL } }, { &hf_gtp_macro_enodeb_id, { "Macro eNodeB ID", "gtp.macro_enodeb_id", FT_UINT24, BASE_HEX, NULL, 0x0fffff, NULL, HFILL } }, { &hf_gtp_home_enodeb_id, { "Home eNodeB ID", "gtp.home_enodeb_id", FT_UINT32, BASE_HEX, NULL, 0x0fffffff, NULL, HFILL } }, { &hf_gtp_dummy_octets, { "Dummy octets", "gtp.dummy_octets", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_gtp_spare_b0, { "Spare", "gtp.spare", FT_UINT8, BASE_HEX, NULL, 0x01, NULL, HFILL } }, { &hf_gtp_spare_b4b0, { "Spare", "gtp.spare", FT_UINT8, BASE_HEX, NULL, 0x1f, NULL, HFILL } }, { &hf_gtp_spare_b7b1, { "Spare", "gtp.spare", FT_UINT8, BASE_HEX, NULL, 0xfe, NULL, HFILL } }, { &hf_gtp_rnc_ip_addr_v4, { "RNC IP address", "gtp.rnc_ip_addr_v4", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_gtp_rnc_ip_addr_v6, { "RNC IP address", "gtp.rnc_ip_addr_v6", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_gtp_ms_cm_2_len, { "Length of the Mobile Station Classmark 2", "gtp.ms_cm_2_len", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_gtp_ms_cm_3_len, { "Length of the Mobile Station Classmark 3", "gtp.ms_cm_3_len", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_gtp_sup_codec_lst_len, { "Length of the Supported Codec List", "gtp.sup_codec_lst_len", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_gtp_add_flg_for_srvcc_ics, { "ICS (IMS Centralized Service)", "gtp.add_flg_for_srvcc_ics", FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), 0x01, NULL, HFILL } }, { &hf_gtp_sel_mode_val, { "Selection Mode Value", "gtp.sel_mode_val", FT_UINT8, BASE_DEC, VALS(gtp_sel_mode_vals), 0x03, NULL, HFILL } }, }; static hf_register_info hf_nrup[] = { {&hf_nrup_pdu_type, { "PDU Type", "nrup.pdu_type", FT_UINT8, BASE_DEC, VALS(nr_pdu_type_cnst), 0xf0, NULL, HFILL} }, {&hf_nrup_spr_bit_extnd_flag, { "Spare", "nrup.spr_bit", FT_BOOLEAN, 8, NULL, 0x08, NULL, HFILL} }, {&hf_nrup_dl_discrd_blks, { "DL Discard Blocks", "nrup.dl_disc_blks", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x04, "Presence of DL discard Number of blocks, discard NR PDCP PDU SN start and Discarded Block size", HFILL} }, {&hf_nrup_dl_flush, { "DL Flush", "nrup.dl_flush", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x02, "Presence of DL discard NR PDCP PDU SN", HFILL} }, {&hf_nrup_rpt_poll, { "Report Polling", "nrup.report_polling", FT_BOOLEAN, 8, TFS(&tfs_requested_not_requested), 0x01, "Indicates that the node hosting the NR PDCP entity requests providing the downlink delivery status report", HFILL} }, {&hf_nrup_retransmission_flag, { "Retransmission Flag", "nrup.retransmission_flag", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x01, "Indicates whether the NR PDCP PDU is a retransmission NR-U packet sent by the node hosting the NR PDCP entity to the corresponding node", HFILL} }, { &hf_nrup_ass_inf_rep_poll_flag, { "Assistance Info. Report Polling Flag", "nrup.ass_inf_rep_poll_flag", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x02, NULL, HFILL } }, { &hf_nrup_spare, { "Spare", "nrup.spare", FT_UINT8, BASE_DEC, NULL, 0xe0, NULL, HFILL } }, { &hf_nrup_request_out_of_seq_report, { "Request Out Of Seq Report", "nrup.request_out_of_seq_report", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x10, NULL, HFILL} }, {&hf_nrup_report_delivered, { "Report Delivered", "nrup.report_delivered", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x08, "Presence of DL report NR PDCP PDU SN", HFILL} }, {&hf_nrup_user_data_existence_flag, { "User Data Existence Flag", "nrup.user_data_existence_flag", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x04, "Whether the node hosting the NR PDCP entity has some user data for the concerned data radio bearer", HFILL} }, {&hf_nrup_nr_u_seq_num, { "NR-U Sequence Number", "nrup.seq_num", FT_UINT24, BASE_DEC, NULL, 0, "NR-U sequence number as assigned by the node hosting the NR PDCP entity", HFILL} }, {&hf_nrup_dl_disc_nr_pdcp_pdu_sn, { "DL discard NR PDCP PDU SN", "nrup.dl_disc_nr_pdcp_pdu_sn", FT_UINT24, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_nrup_dl_disc_num_blks, { "DL discard Number of blocks", "nrup.dl_disc_num_blks", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL} }, {&hf_nrup_dl_disc_nr_pdcp_pdu_sn_start, { "DL discard NR PDCP PDU SN Start", "nrup.dl_disc_nr_pdcp_pdu_sn_start", FT_UINT24, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_nrup_dl_disc_blk_sz, { "Discarded block size", "nrup.disc_blk_sz", FT_UINT8, BASE_DEC, NULL, 0, "The number of NR PDCP PDUs counted from the starting SN to be discarded", HFILL} }, {&hf_nrup_dl_report_nr_pdcp_pdu_sn, { "DL report NR PDCP PDU SN", "nrup.dl_report_nr_pdcp_pdu_sn", FT_UINT24, BASE_DEC, NULL, 0, "DL delivery status report wanted when this SN has been delivered", HFILL} }, {&hf_nrup_high_tx_nr_pdcp_sn_ind, { "Highest Transmitted NR PDCP SN Ind", "nrup.high_tx_nr_pdcp_sn_ind", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x08, NULL, HFILL} }, {&hf_nrup_high_delivered_nr_pdcp_sn_ind, { "Highest Delivered NR PDCP SN Ind", "nrup.high_delivered_nr_pdcp_sn_ind", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x04, NULL, HFILL} }, {&hf_nrup_final_frame_ind, { "Final Frame Indication", "nrup.final_frame_ind", FT_BOOLEAN, 8, TFS(&tfs_final_frame_indication), 0x02, "Whether the frame is the last DL status report", HFILL} }, {&hf_nrup_lost_pkt_rpt, { "Lost Packet Report", "nrup.lost_pkt_rpt", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x01, "Indicates the presence of Number of lost NR-U Sequence Number ranges reported" , HFILL} }, {&hf_nrup_high_retx_nr_pdcp_sn_ind, { "Highest Retransmitted NR PDCP SN Ind", "nrup.high_retx_nr_pdcp_sn_ind", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x04, NULL, HFILL} }, {&hf_nrup_cause_rpt, { "Cause Report", "nrup.cause_rpt", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x01, "Presence of Cause Value", HFILL} }, {&hf_nrup_delivered_nr_pdcp_sn_range_ind, { "Delivered NR PDCP SN Range Ind", "nrup.delivered_nr_pdcp_sn_range_ind", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x10, NULL, HFILL} }, {&hf_nrup_data_rate_ind, { "Data Rate Ind", "nrup.data_rate_ind", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x08, NULL, HFILL} }, {&hf_nrup_desrd_buff_sz_data_radio_bearer, { "Desired buffer size for the data radio bearer", "nrup.desrd_buff_sz_data_radio_bearer", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_nrup_high_delivered_retx_nr_pdcp_sn_ind, { "Highest Delivered Retransmitted NR PDCP SN Ind", "nrup.high_delivered_retx_nr_pdcp_sn_ind", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x02, NULL, HFILL} }, {&hf_nrup_desrd_data_rate, { "Desired data rate", "nrup.desrd_data_rate", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_nrup_num_lost_nru_seq_num, { "Number of lost NR-U Sequence Number ranges reported", "nrup.num_lost_nru_seq_num", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_nrup_start_lost_nru_seq_num, { "Start of lost NR-U Sequence Number range", "nrup.start_num_lost_nru_seq_num", FT_UINT24, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_nrup_end_lost_nru_seq_num, { "End of lost NR-U Sequence Number range", "nrup.end_num_lost_nru_seq_num", FT_UINT24, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_nrup_high_success_delivered_nr_pdcp_sn, { "Highest Successfully Delivered NR PDCP SN", "nrup.high_success_delivered_nr_pdcp_sn", FT_UINT24, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_nrup_high_tx_nr_pdcp_sn, { "Highest transmitted NR PDCP SN", "nrup.high_tx_nr_pdcp_sn", FT_UINT24, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_nrup_cause_val , { "Cause Value", "nrup.cause_val", FT_UINT8, BASE_DEC|BASE_RANGE_STRING, RVALS(nr_up_cause_vals), 0, "Indicates specific events reported by the corresponding node", HFILL} }, {&hf_nrup_high_success_delivered_retx_nr_pdcp_sn, { "Highest Successfully Delivered Retransmitted NR PDCP SN", "nrup.high_success_delivered_retx_nr_pdcp_sn", FT_UINT24, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_nrup_high_retx_nr_pdcp_sn, { "Highest Retransmitted NR PDCP SN Ind", "nrup.high_retx_nr_pdcp_sn", FT_UINT24, BASE_DEC, NULL, 0, NULL, HFILL} }, {&hf_nrup_pdcp_duplication_ind, { "PDCP Duplication Indication", "nrup.pdcp_duplication_ind", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x08, NULL, HFILL} }, {&hf_nrup_assistance_information_ind, { "Assistance Information Indication", "nrup.assistance_information_ind", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x04, NULL, HFILL} }, {&hf_nrup_ul_delay_ind, { "UL Delay Indicator", "nrup.ul_delay_ind", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x02, NULL, HFILL} }, {&hf_nrup_dl_delay_ind, { "DL Delay Indicator", "nrup.dl_delay_ind", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x01, NULL, HFILL} }, {&hf_nrup_spare_2, { "Spare", "nrup.spare", FT_UINT8, BASE_HEX, NULL, 0xfe, NULL, HFILL} }, {&hf_nrup_pdcp_duplication_activation_suggestion, { "PDCP Duplication Activation Suggestion", "nrup.pdcp_duplication_activation_suggestion", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x01, NULL, HFILL} }, {&hf_nrup_num_assistance_info_fields, { "Number of Assistance Information Fields", "nrup.num_assistance_info_fields", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL} }, {&hf_nrup_assistance_information_type, { "Assistance Information Type", "nrup.assistance_info_type", FT_UINT8, BASE_DEC|BASE_RANGE_STRING, RVALS(assistance_info_type), 0x0, NULL, HFILL} }, {&hf_nrup_num_octets_radio_qa_info, { "Number of octets for Radio Quality Assistance Information Fields", "nrup.num_octets_radio_qa_info", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL} }, {&hf_nrup_radio_qa_info, { "Radio Quality Assistance Information", "nrup.radio_qa_info", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL} }, {&hf_nrup_ul_delay_du_result, { "UL Delay DU Result", "nrup.ul_delay_du_result", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL} }, {&hf_nrup_dl_delay_du_result, { "DL Delay DU Result", "nrup.dl_delay_du_result", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL} } }; static ei_register_info ei[] = { { &ei_gtp_ext_length_mal, { "gtp.ext_length.invalid", PI_MALFORMED, PI_ERROR, "Malformed length", EXPFILL }}, { &ei_gtp_ext_hdr_pdcpsn, { "gtp.ext_hdr.pdcp_sn.non_zero", PI_PROTOCOL, PI_NOTE, "3GPP TS 29.281 v9.0.0: When used between two eNBs at the X2 interface in E-UTRAN, bit 8 of octet 2 is spare. The meaning of the spare bits shall be set to zero.", EXPFILL }}, { &ei_gtp_ext_length_warn, { "gtp.ext_length.invalid", PI_PROTOCOL, PI_WARN, "Length warning", EXPFILL }}, { &ei_gtp_undecoded, { "gtp.undecoded", PI_UNDECODED, PI_WARN, "Data not decoded yet", EXPFILL }}, { &ei_gtp_message_not_found, { "gtp.message_not_found", PI_PROTOCOL, PI_WARN, "Message not found", EXPFILL }}, { &ei_gtp_field_not_present, { "gtp.field_not_present", PI_PROTOCOL, PI_WARN, "Field not present", EXPFILL }}, { &ei_gtp_wrong_next_field, { "gtp.wrong_next_field", PI_PROTOCOL, PI_WARN, "Wrong next field", EXPFILL }}, { &ei_gtp_field_not_support_in_version, { "gtp.field_not_support_in_version", PI_PROTOCOL, PI_WARN, "GTP version not supported for field", EXPFILL }}, { &ei_gtp_guaranteed_bit_rate_value, { "gtp.guaranteed_bit_rate_value", PI_PROTOCOL, PI_NOTE, "Use the value indicated by the Guaranteed bit rate", EXPFILL }}, { &ei_gtp_max_bit_rate_value, { "gtp.max_bit_rate_value", PI_PROTOCOL, PI_NOTE, "Use the value indicated by the Maximum bit rate", EXPFILL }}, { &ei_gtp_ext_geo_loc_type, { "gtp.ext_geo_loc_type.unknown", PI_PROTOCOL, PI_WARN, "Unknown Location type data", EXPFILL }}, { &ei_gtp_iei, { "gtp.iei.unknown", PI_PROTOCOL, PI_WARN, "Unknown IEI - Later spec than TS 29.060 9.4.0 used?", EXPFILL }}, { &ei_gtp_unknown_extension_header, { "gtp.unknown_extension_header", PI_PROTOCOL, PI_WARN, "Unknown extension header", EXPFILL }}, { &ei_gtp_unknown_pdu_type, { "gtp.unknown_pdu_type", PI_PROTOCOL, PI_WARN, "Unknown PDU type", EXPFILL }}, { &ei_gtp_source_type_unknown, { "gtp.source_type.unknown", PI_PROTOCOL, PI_WARN, "Unknown source type", EXPFILL }}, { &ei_gtp_cdr_rel_ext_invalid, { "gtp.cdr_rel_ext.invalid", PI_PROTOCOL, PI_WARN, "If Release Identifier is 0, Release Identifier Extension must be >= 16", EXPFILL}}, }; /* Setup protocol subtree array */ #define GTP_NUM_INDIVIDUAL_ELEMS 39 static int *ett_gtp_array[GTP_NUM_INDIVIDUAL_ELEMS + NUM_GTP_IES]; ett_gtp_array[0] = &ett_gtp; ett_gtp_array[1] = &ett_gtp_flags; ett_gtp_array[2] = &ett_gtp_ext; ett_gtp_array[3] = &ett_gtp_cdr_dr; ett_gtp_array[4] = &ett_gtp_qos; ett_gtp_array[5] = &ett_gtp_qos_arp; ett_gtp_array[6] = &ett_gtp_flow_ii; ett_gtp_array[7] = &ett_gtp_ext_hdr; ett_gtp_array[8] = &ett_gtp_rp; ett_gtp_array[9] = &ett_gtp_pkt_flow_id; ett_gtp_array[10] = &ett_gtp_data_resp; ett_gtp_array[11] = &ett_gtp_cdr_ver; ett_gtp_array[12] = &ett_gtp_tmgi; ett_gtp_array[13] = &ett_gtp_trip; ett_gtp_array[14] = &ett_gtp_quint; ett_gtp_array[15] = &ett_gtp_drx; ett_gtp_array[16] = &ett_gtp_net_cap; ett_gtp_array[17] = &ett_gtp_can_pack; ett_gtp_array[18] = &ett_gtp_proto; ett_gtp_array[19] = &ett_gtp_gsn_addr; ett_gtp_array[20] = &ett_gtp_tft; ett_gtp_array[21] = &ett_gtp_rab_setup; ett_gtp_array[22] = &ett_gtp_hdr_list; ett_gtp_array[23] = &ett_gtp_rel_pack; ett_gtp_array[24] = &ett_gtp_node_addr; ett_gtp_array[25] = &ett_gtp_mm_cntxt; ett_gtp_array[26] = &ett_gtp_utran_cont; ett_gtp_array[27] = &ett_gtp_nr_ran_cont; ett_gtp_array[28] = &ett_gtp_pdcp_no_conf; ett_gtp_array[29] = &ett_pdu_session_cont; ett_gtp_array[30] = &ett_gtp_trace_triggers_ggsn; ett_gtp_array[31] = &ett_gtp_trace_loi_ggsn; ett_gtp_array[32] = &ett_gtp_trace_triggers_bm_sc; ett_gtp_array[33] = &ett_gtp_trace_loi_bm_sc; ett_gtp_array[34] = &ett_gtp_bss_cont; ett_gtp_array[35] = &ett_gtp_lst_set_up_pfc; ett_gtp_array[36] = &ett_gtp_rrc_cont; ett_gtp_array[37] = &ett_gtp_rim_routing_adr; ett_gtp_array[38] = &ett_nrup; last_offset = GTP_NUM_INDIVIDUAL_ELEMS; for (i=0; i < NUM_GTP_IES; i++, last_offset++) { ett_gtp_array[last_offset] = &ett_gtp_ies[i]; } proto_gtp = proto_register_protocol("GPRS Tunneling Protocol", "GTP", "gtp"); proto_gtpprime = proto_register_protocol("GPRS Tunneling Protocol Prime", "GTP (Prime)", "gtpprime"); proto_register_field_array(proto_gtp, hf_gtp, array_length(hf_gtp)); proto_register_subtree_array(ett_gtp_array, array_length(ett_gtp_array)); expert_gtp = expert_register_protocol(proto_gtp); expert_register_field_array(expert_gtp, ei, array_length(ei)); proto_nrup = proto_register_protocol("NRUP", "NRUP", "nrup"); proto_register_field_array(proto_nrup, hf_nrup, array_length(hf_nrup)); gtp_module = prefs_register_protocol(proto_gtp, proto_reg_handoff_gtp); /* For reading older preference files with "gtpv0." or "gtpv1." preferences */ prefs_register_module_alias("gtpv0", gtp_module); prefs_register_module_alias("gtpv1", gtp_module); prefs_register_uint_preference(gtp_module, "v0_port", "GTPv0 and GTP' port", "GTPv0 and GTP' port (default 3386)", 10, &g_gtpv0_port); prefs_register_uint_preference(gtp_module, "v1c_port", "GTPv1 or GTPv2 control plane (GTP-C, GTPv2-C) port", "GTPv1 and GTPv2 control plane port (default 2123)", 10, &g_gtpv1c_port); prefs_register_uint_preference(gtp_module, "v1u_port", "GTPv1 user plane (GTP-U) port", "GTPv1 user plane port (default 2152)", 10, &g_gtpv1u_port); prefs_register_enum_preference(gtp_module, "dissect_tpdu_as", "Dissect T-PDU as", "Dissect T-PDU as", &dissect_tpdu_as, gtp_decode_tpdu_as, false); prefs_register_uint_preference(gtp_module, "pair_max_interval", "Max interval allowed in pair matching", "Request/reply pair matches only if their timestamps are closer than that value, in ms (default 0, i.e. don't use timestamps)", 10, &pref_pair_matching_max_interval_ms); prefs_register_obsolete_preference(gtp_module, "v0_dissect_cdr_as"); prefs_register_obsolete_preference(gtp_module, "v0_check_etsi"); prefs_register_obsolete_preference(gtp_module, "v1_check_etsi"); prefs_register_bool_preference(gtp_module, "check_etsi", "Compare GTP order with ETSI", "GTP ETSI order", &g_gtp_etsi_order); prefs_register_obsolete_preference(gtp_module, "ppp_reorder"); prefs_register_obsolete_preference(gtp_module, "dissect_tpdu"); /* This preference can be used to disable the dissection of GTP over TCP. Most of the Wireless operators uses GTP over UDP. * The preference is set to true by default forbackward compatibility */ prefs_register_bool_preference(gtp_module, "dissect_gtp_over_tcp", "Dissect GTP over TCP", "Dissect GTP over TCP", &g_gtp_over_tcp); prefs_register_bool_preference(gtp_module, "track_gtp_session", "Track GTP session", "Track GTP session", &g_gtp_session); /* --- PDCP DECODE ADDITIONS --- */ static uat_field_t pdcp_lte_keys_uat_flds[] = { UAT_FLD_CSTRING_OTHER(pdcp_lte_users, ip_addr_str, "Dst IP address", pdcp_uat_fld_ip_chk_cb, "IPv4 or IPv6 address"), UAT_FLD_CSTRING_OTHER(pdcp_lte_users, teid_str, "TEID value or \"" PDCP_TEID_WILDCARD "\"", pdcp_uat_fld_teid_chk_cb, "Tunnel Endpoint Identifier"), UAT_FLD_VS(pdcp_lte_users, direction, "Direction", vs_direction, "Direction of frames"), UAT_FLD_VS(pdcp_lte_users, header_present, "Header present", vs_header_present, "Header present flag"), UAT_FLD_VS(pdcp_lte_users, plane, "Plane", vs_pdcp_plane, "Signaling or user plane"), UAT_FLD_VS(pdcp_lte_users, lte_sn_length, "PDCP SN length", vs_pdcp_lte_sn_length, "Length of PDCP sequence number"), UAT_FLD_VS(pdcp_lte_users, rohc_compression, "ROHC compression", vs_rohc_compression, "Header compression"), //UAT_FLD_VS(pdcp_lte_users, rohc_mode, "ROHC mode", vs_rohc_mode, "ROHC mode"), UAT_FLD_VS(pdcp_lte_users, rohc_profile, "ROHC profile", vs_rohc_profile, "ROHC profile"), UAT_FLD_DEC(pdcp_lte_users, ue_id, "UE Id", "UE Identifier to match other PDCP config"), UAT_FLD_DEC(pdcp_lte_users, rb_id, "RB Id", "Radio Bearer Identifier"), UAT_END_FIELDS }; pdcp_lte_keys_uat = uat_new("PDCP-LTE Keys", sizeof(uat_pdcp_lte_keys_record_t), /* record size */ "gtp_pdcp_lte_keys2", /* filename */ true, /* from_profile */ &uat_pdcp_lte_keys_records, /* data_ptr */ &num_pdcp_lte_keys_uat, /* numitems_ptr */ UAT_AFFECTS_DISSECTION, /* affects dissection of packets, but not set of named fields */ NULL, /* help */ pdcp_lte_copy_cb, /* copy callback */ pdcp_lte_update_cb, /* update callback */ pdcp_lte_free_cb, /* free callback */ NULL, /* post update callback */ NULL, /* reset callback */ pdcp_lte_keys_uat_flds); /* UAT field definitions */ prefs_register_uat_preference(gtp_module, "pdcp_lte_table", "GTP PDCP-LTE Keys", "Preconfigured PDCP-LTE Keys", pdcp_lte_keys_uat); static uat_field_t pdcp_nr_keys_uat_flds[] = { UAT_FLD_CSTRING_OTHER(pdcp_nr_users, ip_addr_str, "Dst IP address", pdcp_uat_fld_ip_chk_cb, "IPv4 or IPv6 address"), UAT_FLD_CSTRING_OTHER(pdcp_nr_users, teid_str, "TEID value or \"" PDCP_TEID_WILDCARD "\"", pdcp_uat_fld_teid_chk_cb, "Tunnel Endpoint Identifier"), UAT_FLD_VS(pdcp_nr_users, direction, "Direction", vs_direction, "Direction of frames"), UAT_FLD_VS(pdcp_nr_users, sdap_header_present, "SDAP header present flag", vs_sdap_header_present, "SDAP header present flag"), UAT_FLD_VS(pdcp_nr_users, mac_i_present, "MAC-I present flag", vs_mac_i_present, "MAC-I present flag"), UAT_FLD_VS(pdcp_nr_users, plane, "Plane", vs_pdcp_plane, "Signaling or user plane"), UAT_FLD_VS(pdcp_nr_users, pdcp_nr_sn_length, "PDCP SN length", vs_pdcp_nr_sn_length, "Length of PDCP sequence number"), UAT_FLD_VS(pdcp_nr_users, rohc_compression, "ROHC compression", vs_rohc_compression, "Header compression"), //UAT_FLD_VS(pdcp_nr_users, rohc_mode, "ROHC mode", vs_rohc_mode, "ROHC mode"), UAT_FLD_VS(pdcp_nr_users, rohc_profile, "ROHC profile", vs_rohc_profile, "ROHC profile"), UAT_FLD_DEC(pdcp_nr_users, ue_id, "UE Id", "UE Identifier to match other PDCP config"), UAT_FLD_DEC(pdcp_nr_users, rb_id, "RB Id", "Radio Bearer Identifier"), UAT_END_FIELDS }; pdcp_nr_keys_uat = uat_new("PDCP-NR Keys", sizeof(uat_pdcp_nr_keys_record_t), /* record size */ "gtp_pdcp_nr_keys2", /* filename */ true, /* from_profile */ &uat_pdcp_nr_keys_records, /* data_ptr */ &num_pdcp_nr_keys_uat, /* numitems_ptr */ UAT_AFFECTS_DISSECTION, /* affects dissection of packets, but not set of named fields */ NULL, /* help */ pdcp_nr_copy_cb, /* copy callback */ pdcp_nr_update_cb, /* update callback */ pdcp_nr_free_cb, /* free callback */ NULL, /* post update callback */ NULL, /* reset callback */ pdcp_nr_keys_uat_flds); /* UAT field definitions */ /* Set default values for new entries to this table. Choosing SRB-1 (DL) */ /* N.B. currently doesn't seem to work.. */ static const char *nr_keys_uat_defaults_[] = { NULL, /*dst-address*/ "*", /*teid*/ PDCP_DIRECTION_DOWNLINK_STR, PDCP_NR_SDAP_HEADER_NOT_PRESENT_STR, MAC_I_PRESENT_TRUE_STR, SIGNALING_PLANE_STR, PDCP_SN_LENGTH_12_BITS_STR, ROHC_COMPRESSION_FALSE_STR, ROHC_PROFILE_UNCOMPRESSED_STR, "1", /*ueid*/ "1" /*rb*/ }; uat_set_default_values(pdcp_nr_keys_uat, nr_keys_uat_defaults_); prefs_register_uat_preference(gtp_module, "pdcp_nr_table", "GTP PDCP-NR Keys", "Preconfigured PDCP-NR Keys", pdcp_nr_keys_uat); /* --- END PDCP NR DECODE ADDITIONS ---*/ gtp_handle = register_dissector("gtp", dissect_gtp, proto_gtp); gtp_prime_handle = register_dissector("gtpprime", dissect_gtpprime, proto_gtpprime); nrup_handle = register_dissector("nrup", dissect_nrup, proto_nrup); gtp_priv_ext_dissector_table = register_dissector_table("gtp.priv_ext", "GTP Private Extension", proto_gtp, FT_UINT16, BASE_DEC); gtp_cdr_fmt_dissector_table = register_dissector_table("gtp.cdr_fmt", "GTP Data Record Type", proto_gtp, FT_UINT16, BASE_DEC); gtp_hdr_ext_dissector_table = register_dissector_table("gtp.hdr_ext", "GTP Header Extension", proto_gtp, FT_UINT16, BASE_DEC); session_table = wmem_map_new_autoreset(wmem_epan_scope(), wmem_file_scope(), g_direct_hash, g_direct_equal); frame_map = wmem_map_new_autoreset(wmem_epan_scope(), wmem_file_scope(), gtp_info_hash, gtp_info_equal); register_init_routine(gtp_init); gtp_tap = register_tap("gtp"); gtpv1_tap = register_tap("gtpv1"); register_srt_table(proto_gtp, NULL, 1, gtpstat_packet, gtpstat_init, NULL); } /* TS 132 295 V9.0.0 (2010-02) * 5.1.3 Port usage * - The UDP Destination Port may be the server port number 3386 which has been reserved for GTP'. * Alternatively another port can be used, which has been configured by O&M, except Port Number 2123 * which is used by GTPv2-C. * : * The TCP Destination Port may be the server port number 3386, which has been reserved for G-PDUs. Alternatively, * another port may be used as configured by O&M. Extra implementation-specific destination ports are possible but * all CGFs shall support the server port number. */ void proto_reg_handoff_gtp(void) { static bool Initialized = false; static bool gtp_over_tcp; static unsigned gtpv0_port; static unsigned gtpv1c_port; static unsigned gtpv1u_port; if (!Initialized) { radius_register_avp_dissector(VENDOR_THE3GPP, 5, dissect_radius_qos_umts); radius_register_avp_dissector(VENDOR_THE3GPP, 12, dissect_radius_selection_mode); eth_handle = find_dissector_add_dependency("eth_withoutfcs", proto_gtp); ip_handle = find_dissector_add_dependency("ip", proto_gtp); ipv6_handle = find_dissector_add_dependency("ipv6", proto_gtp); ppp_handle = find_dissector_add_dependency("ppp", proto_gtp); sync_handle = find_dissector_add_dependency("sync", proto_gtp); gtpcdr_handle = find_dissector_add_dependency("gtpcdr", proto_gtp); sndcpxid_handle = find_dissector_add_dependency("sndcpxid", proto_gtp); gtpv2_handle = find_dissector_add_dependency("gtpv2", proto_gtp); bssgp_handle = find_dissector_add_dependency("bssgp", proto_gtp); pdcp_nr_handle = find_dissector_add_dependency("pdcp-nr", proto_gtp); pdcp_lte_handle = find_dissector_add_dependency("pdcp-lte", proto_gtp); proto_pdcp_lte = dissector_handle_get_protocol_index(pdcp_lte_handle); bssap_pdu_type_table = find_dissector_table("bssap.pdu_type"); /* AVP Code: 5 3GPP-GPRS Negotiated QoS profile */ dissector_add_uint("diameter.3gpp", 5, create_dissector_handle(dissect_diameter_3gpp_qosprofile, proto_gtp)); /* AVP Code: 903 MBMS-Service-Area */ dissector_add_uint("diameter.3gpp", 903, create_dissector_handle(dissect_gtp_3gpp_mbms_service_area, proto_gtp)); /* AVP Code: 904 MBMS-Session-Duration */ dissector_add_uint("diameter.3gpp", 904, create_dissector_handle(dissect_gtp_mbms_ses_dur, proto_gtp)); /* AVP Code: 911 MBMS-Time-To-Data-Transfer */ dissector_add_uint("diameter.3gpp", 911, create_dissector_handle(dissect_gtp_mbms_time_to_data_tr, proto_gtp)); Initialized = true; } else { dissector_delete_uint("udp.port", gtpv0_port, gtp_prime_handle); dissector_delete_uint("udp.port", gtpv1c_port, gtp_handle); dissector_delete_uint("udp.port", gtpv1u_port, gtp_handle); if (gtp_over_tcp) { dissector_delete_uint("tcp.port", gtpv0_port, gtp_prime_handle); dissector_delete_uint("tcp.port", gtpv1c_port, gtp_handle); dissector_delete_uint("tcp.port", gtpv1u_port, gtp_handle); } } gtp_over_tcp = g_gtp_over_tcp; gtpv0_port = g_gtpv0_port; gtpv1c_port = g_gtpv1c_port; gtpv1u_port = g_gtpv1u_port; /* This doesn't use the "auto preference" API because the port description is too specific */ dissector_add_uint("udp.port", g_gtpv0_port, gtp_prime_handle); dissector_add_uint("udp.port", g_gtpv1c_port, gtp_handle); dissector_add_uint("udp.port", g_gtpv1u_port, gtp_handle); if (g_gtp_over_tcp) { /* This doesn't use the "auto preference" API because the port description is too specific */ dissector_add_uint("tcp.port", g_gtpv0_port, gtp_prime_handle); dissector_add_uint("tcp.port", g_gtpv1c_port, gtp_handle); dissector_add_uint("tcp.port", g_gtpv1u_port, gtp_handle); } } /* * Editor modelines - https://www.wireshark.org/tools/modelines.html * * Local variables: * c-basic-offset: 4 * tab-width: 8 * indent-tabs-mode: nil * End: * * vi: set shiftwidth=4 tabstop=8 expandtab: * :indentSize=4:tabSize=8:noTabs=true: */