nexmon – Rev 1
?pathlinks?
/* packet-gtp.c
*
* Routines for GTP dissection
* Copyright 2001, Michal Melerowicz <michal.melerowicz@nokia.com>
* Nicolas Balkota <balkota@mac.com>
*
* Updates and corrections:
* Copyright 2006 - 2009, Anders Broman <anders.broman@ericsson.com>
*
* Added Bearer control mode dissection:
* Copyright 2011, Grzegorz Szczytowski <grzegorz.szczytowski@gmail.com>
*
* Updates and corrections:
* Copyright 2011-2013, Anders Broman <anders.broman@ericsson.com>
*
* PDCP PDU number extension header support added by Martin Isaksson <martin.isaksson@ericsson.com>
*
* Control Plane Request-Response tracking code Largely based on similar routines in
* packet-ldap.c by Ronnie Sahlberg
* Added by Kari Tiirikainen <kari.tiirikainen@nsn.com>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* 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 <epan/packet.h>
#include <epan/conversation.h>
#include <epan/prefs.h>
#include <epan/expert.h>
#include <epan/sminmpec.h>
#include <epan/asn1.h>
#include <epan/tap.h>
#include <epan/srt_table.h>
#include <epan/to_str.h>
#include "packet-ppp.h"
#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-e212.h"
#include "packet-gtp.h"
void proto_register_gtp(void);
void proto_reg_handoff_gtp(void);
static dissector_table_t ppp_subdissector_table;
static dissector_table_t gtp_priv_ext_dissector_table;
static dissector_table_t gtp_cdr_fmt_dissector_table;
#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 0
#define GTP_TPDU_AS_SYNC 2
static gboolean g_gtp_over_tcp = TRUE;
gboolean g_gtp_session = FALSE;
static guint g_gtpv0_port = GTPv0_PORT;
static guint g_gtpv1c_port = GTPv1C_PORT;
static guint g_gtpv1u_port = GTPv1U_PORT;
static int proto_gtp = -1;
static int proto_gtpprime = -1;
/*KTi*/
static int hf_gtp_ie_id = -1;
static int hf_gtp_response_in = -1;
static int hf_gtp_response_to = -1;
static int hf_gtp_time = -1;
static int hf_gtp_apn = -1;
static int hf_gtp_cause = -1;
static int hf_gtp_chrg_char = -1;
static int hf_gtp_chrg_char_s = -1;
static int hf_gtp_chrg_char_n = -1;
static int hf_gtp_chrg_char_p = -1;
static int hf_gtp_chrg_char_f = -1;
static int hf_gtp_chrg_char_h = -1;
static int hf_gtp_chrg_char_r = -1;
static int hf_gtp_chrg_id = -1;
static int hf_gtp_chrg_ipv4 = -1;
static int hf_gtp_chrg_ipv6 = -1;
static int hf_gtp_ext_flow_label = -1;
static int hf_gtp_ext_id = -1;
static int hf_gtp_ext_val = -1;
static int hf_gtp_ext_hdr = -1;
static int hf_gtp_ext_hdr_next = -1;
static int hf_gtp_ext_hdr_length = -1;
static int hf_gtp_ext_hdr_pdcpsn = -1;
static int hf_gtp_ext_hdr_udp_port = -1;
static int hf_gtp_flags = -1;
static int hf_gtp_flags_ver = -1;
static int hf_gtp_prime_flags_ver = -1;
static int hf_gtp_flags_pt = -1;
static int hf_gtp_flags_spare1 = -1;
static int hf_gtp_flags_hdr_length = -1;
static int hf_gtp_flags_snn = -1;
static int hf_gtp_flags_spare2 = -1;
static int hf_gtp_flags_e = -1;
static int hf_gtp_flags_s = -1;
static int hf_gtp_flags_pn = -1;
static int hf_gtp_flow_ii = -1;
static int hf_gtp_flow_label = -1;
static int hf_gtp_flow_sig = -1;
static int hf_gtp_gsn_addr_len = -1;
static int hf_gtp_gsn_addr_type = -1;
static int hf_gtp_gsn_ipv4 = -1;
static int hf_gtp_gsn_ipv6 = -1;
static int hf_gtp_length = -1;
static int hf_gtp_map_cause = -1;
static int hf_gtp_message_type = -1;
static int hf_gtp_ms_reason = -1;
static int hf_gtp_ms_valid = -1;
static int hf_gtp_npdu_number = -1;
static int hf_gtp_node_ipv4 = -1;
static int hf_gtp_node_ipv6 = -1;
static int hf_gtp_nsapi = -1;
static int hf_gtp_ptmsi = -1;
static int hf_gtp_ptmsi_sig = -1;
static int hf_gtp_qos_version = -1;
static int hf_gtp_qos_spare1 = -1;
static int hf_gtp_qos_delay = -1;
static int hf_gtp_qos_mean = -1;
static int hf_gtp_qos_peak = -1;
static int hf_gtp_qos_spare2 = -1;
static int hf_gtp_qos_precedence = -1;
static int hf_gtp_qos_spare3 = -1;
static int hf_gtp_qos_reliability = -1;
static int hf_gtp_qos_al_ret_priority = -1;
static int hf_gtp_qos_traf_class = -1;
static int hf_gtp_qos_del_order = -1;
static int hf_gtp_qos_del_err_sdu = -1;
static int hf_gtp_qos_max_sdu_size = -1;
static int hf_gtp_qos_max_ul = -1;
static int hf_gtp_qos_max_dl = -1;
static int hf_gtp_qos_res_ber = -1;
static int hf_gtp_qos_sdu_err_ratio = -1;
static int hf_gtp_qos_trans_delay = -1;
static int hf_gtp_qos_traf_handl_prio = -1;
static int hf_gtp_qos_guar_ul = -1;
static int hf_gtp_qos_guar_dl = -1;
static int hf_gtp_qos_src_stat_desc = -1;
static int hf_gtp_qos_sig_ind = -1;
static int hf_gtp_qos_arp = -1;
static int hf_gtp_qos_arp_pvi = -1;
static int hf_gtp_qos_arp_pl = -1;
static int hf_gtp_qos_arp_pci = -1;
static int hf_gtp_qos_qci = -1;
static int hf_gtp_qos_ul_mbr = -1;
static int hf_gtp_qos_dl_mbr = -1;
static int hf_gtp_qos_ul_gbr = -1;
static int hf_gtp_qos_dl_gbr = -1;
static int hf_gtp_qos_ul_apn_ambr = -1;
static int hf_gtp_qos_dl_apn_ambr = -1;
static int hf_gtp_pkt_flow_id = -1;
static int hf_gtp_rab_gtpu_dn = -1;
static int hf_gtp_rab_gtpu_up = -1;
static int hf_gtp_rab_pdu_dn = -1;
static int hf_gtp_rab_pdu_up = -1;
static int hf_gtp_rai_rac = -1;
static int hf_gtp_rai_lac = -1;
static int hf_gtp_tac = -1;
static int hf_gtp_eci = -1;
static int hf_gtp_ranap_cause = -1;
static int hf_gtp_recovery = -1;
static int hf_gtp_reorder = -1;
static int hf_gtp_rnc_ipv4 = -1;
static int hf_gtp_rnc_ipv6 = -1;
static int hf_gtp_rp = -1;
static int hf_gtp_rp_nsapi = -1;
static int hf_gtp_rp_sms = -1;
static int hf_gtp_rp_spare = -1;
static int hf_gtp_sel_mode = -1;
static int hf_gtp_seq_number = -1;
static int hf_gtp_session = -1;
static int hf_gtp_sndcp_number = -1;
static int hf_gtp_tear_ind = -1;
static int hf_gtp_teid = -1;
static int hf_gtp_teid_cp = -1;
static int hf_gtp_ulink_teid_cp = -1;
static int hf_gtp_teid_data = -1;
static int hf_gtp_ulink_teid_data = -1;
static int hf_gtp_teid_ii = -1;
static int hf_gtp_tft_code = -1;
static int hf_gtp_tft_spare = -1;
static int hf_gtp_tft_number = -1;
static int hf_gtp_tft_eval = -1;
static int hf_gtp_tft_content_id = -1;
static int hf_gtp_tid = -1;
static int hf_gtp_tlli = -1;
static int hf_gtp_tr_comm = -1;
static int hf_gtp_trace_ref = -1;
static int hf_gtp_trace_type = -1;
static int hf_gtp_user_addr_pdp_org = -1;
static int hf_gtp_user_addr_pdp_type = -1;
static int hf_gtp_user_ipv4 = -1;
static int hf_gtp_user_ipv6 = -1;
static int hf_gtp_security_mode = -1;
static int hf_gtp_no_of_vectors = -1;
static int hf_gtp_cipher_algorithm = -1;
static int hf_gtp_cksn_ksi = -1;
static int hf_gtp_cksn = -1;
static int hf_gtp_ksi = -1;
static int hf_gtp_ext_length = -1;
static int hf_gtp_utran_field = -1;
static int hf_gtp_ext_apn_res = -1;
static int hf_gtp_ext_rat_type = -1;
static int hf_gtp_ext_geo_loc_type = -1;
static int hf_gtp_ext_sac = -1;
static int hf_gtp_ext_imeisv = -1;
static int hf_gtp_target_rnc_id = -1;
static int hf_gtp_target_ext_rnc_id = -1;
static int hf_gtp_bssgp_cause = -1;
static int hf_gtp_bssgp_ra_discriminator = -1;
static int hf_gtp_sapi = -1;
static int hf_gtp_xid_par_len = -1;
static int hf_gtp_earp_pvi = -1;
static int hf_gtp_earp_pl = -1;
static int hf_gtp_earp_pci = -1;
static int hf_gtp_cdr_app = -1;
static int hf_gtp_cdr_rel = -1;
static int hf_gtp_cdr_ver = -1;
static int hf_gtp_cdr_length = -1;
static int hf_gtp_cdr_context = -1;
static int hf_gtp_cmn_flg_ppc = -1;
static int hf_gtp_cmn_flg_mbs_srv_type = -1;
static int hf_gtp_cmn_flg_mbs_ran_pcd_rdy = -1;
static int hf_gtp_cmn_flg_mbs_cnt_inf = -1;
static int hf_gtp_cmn_flg_nrsn = -1;
static int hf_gtp_cmn_flg_no_qos_neg = -1;
static int hf_gtp_cmn_flg_upgrd_qos_sup = -1;
static int hf_gtp_cmn_flg_dual_addr_bearer_flg = -1;
static int hf_gtp_tmgi = -1;
static int hf_gtp_mbms_ses_dur_days = -1;
static int hf_gtp_mbms_ses_dur_s = -1;
static int hf_gtp_no_of_mbms_sa_codes = -1;
static int hf_gtp_mbms_sa_code = -1;
static int hf_gtp_mbs_2g_3g_ind = -1;
static int hf_gtp_time_2_dta_tr = -1;
static int hf_gtp_ext_ei = -1;
static int hf_gtp_ext_gcsi = -1;
static int hf_gtp_ext_dti = -1;
static int hf_gtp_ra_prio_lcs = -1;
static int hf_gtp_bcm = -1;
static int hf_gtp_fqdn = -1;
static int hf_gtp_rim_routing_addr = -1;
static int hf_gtp_mbms_flow_id = -1;
static int hf_gtp_mbms_dist_indic = -1;
static int hf_gtp_ext_apn_ambr_ul = -1;
static int hf_gtp_ext_apn_ambr_dl = -1;
static int hf_gtp_ext_sub_ue_ambr_ul = -1;
static int hf_gtp_ext_sub_ue_ambr_dl = -1;
static int hf_gtp_ext_auth_ue_ambr_ul = -1;
static int hf_gtp_ext_auth_ue_ambr_dl = -1;
static int hf_gtp_ext_auth_apn_ambr_ul = -1;
static int hf_gtp_ext_auth_apn_ambr_dl = -1;
static int hf_gtp_ext_ggsn_back_off_time_units = -1;
static int hf_gtp_ext_ggsn_back_off_timer = -1;
static int hf_gtp_higher_br_16mb_flg = -1;
static int hf_gtp_max_mbr_apn_ambr_ul = -1;
static int hf_gtp_max_mbr_apn_ambr_dl = -1;
static int hf_gtp_ext_enb_type = -1;
static int hf_gtp_macro_enodeb_id = -1;
static int hf_gtp_home_enodeb_id = -1;
static int hf_gtp_dummy_octets = -1;
/* Generated from convert_proto_tree_add_text.pl */
static int hf_gtp_ggsn_2_address_ipv4 = -1;
static int hf_gtp_rfsp_index = -1;
static int hf_gtp_quintuplet_ciphering_key = -1;
static int hf_gtp_kc = -1;
static int hf_gtp_rand = -1;
static int hf_gtp_pdp_context_identifier = -1;
static int hf_gtp_receive_n_pdu_number = -1;
static int hf_gtp_container_length = -1;
static int hf_gtp_quintuplets_length = -1;
static int hf_gtp_auth = -1;
static int hf_gtp_tft_length = -1;
static int hf_gtp_ggsn_address_for_control_plane = -1;
static int hf_gtp_integrity_key_ik = -1;
static int hf_gtp_gsn_address_information_element_length = -1;
static int hf_gtp_reordering_required = -1;
static int hf_gtp_sres = -1;
static int hf_gtp_data_record_format = -1;
static int hf_gtp_timezone = -1;
static int hf_gtp_timezone_dst = -1;
static int hf_gtp_authentication_length = -1;
static int hf_gtp_send_n_pdu_number = -1;
static int hf_gtp_sequence_number_up = -1;
static int hf_gtp_pdp_address_length = -1;
static int hf_gtp_transaction_identifier = -1;
static int hf_gtp_xres_length = -1;
static int hf_gtp_ggsn_address_length = -1;
static int hf_gtp_apn_length = -1;
static int hf_gtp_sequence_number_down = -1;
static int hf_gtp_tft_packet_filter_id = -1;
static int hf_gtp_ggsn_2_address_ipv6 = -1;
static int hf_gtp_pdp_address_ipv4 = -1;
static int hf_gtp_activity_status_indicator = -1;
static int hf_gtp_pdp_type = -1;
static int hf_gtp_ggsn_address_for_user_traffic = -1;
static int hf_gtp_quintuplet_integrity_key = -1;
static int hf_gtp_pdp_address_ipv6 = -1;
static int hf_gtp_tft_content_length = -1;
static int hf_gtp_rab_setup_length = -1;
static int hf_gtp_number_of_data_records = -1;
static int hf_gtp_ciphering_key_kc = -1;
static int hf_gtp_pdp_cntxt_sapi = -1;
static int hf_gtp_xres = -1;
static int hf_gtp_pdp_organization = -1;
static int hf_gtp_node_address_length = -1;
static int hf_gtp_ggsn_2_address_length = -1;
static int hf_gtp_gsn_address_length = -1;
static int hf_gtp_vplmn_address_allowed = -1;
static int hf_gtp_uplink_flow_label_signalling = -1;
static int hf_gtp_extended_end_user_address = -1;
static int hf_gtp_ciphering_key_ck = -1;
static int hf_gtp_fqdn_length = -1;
static int hf_gtp_seq_num_released = -1;
static int hf_gtp_seq_num_canceled = -1;
static int hf_gtp_requests_responded = -1;
static int hf_gtp_hyphen_separator = -1;
static int hf_gtp_ms_network_cap_content_len = -1;
static int hf_gtp_iei = -1;
static int hf_gtp_iei_mobile_id_len = -1;
static int hf_gtp_qos_umts_length = -1;
static int hf_gtp_num_ext_hdr_types = -1;
static int hf_gtp_ext_hdr_type = -1;
static int hf_gtp_tpdu_data = -1;
/* Initialize the subtree pointers */
static gint ett_gtp = -1;
static gint ett_gtp_flags = -1;
static gint ett_gtp_ext = -1;
static gint ett_gtp_ext_hdr = -1;
static gint ett_gtp_qos = -1;
static gint ett_gtp_qos_arp = -1;
static gint ett_gtp_flow_ii = -1;
static gint ett_gtp_rp = -1;
static gint ett_gtp_pkt_flow_id = -1;
static gint ett_gtp_trip = -1;
static gint ett_gtp_quint = -1;
static gint ett_gtp_proto = -1;
static gint ett_gtp_gsn_addr = -1;
static gint ett_gtp_tft = -1;
static gint ett_gtp_tft_pf = -1;
static gint ett_gtp_tft_flags = -1;
static gint ett_gtp_rab_setup = -1;
static gint ett_gtp_hdr_list = -1;
static gint ett_gtp_node_addr = -1;
static gint ett_gtp_rel_pack = -1;
static gint ett_gtp_can_pack = -1;
static gint ett_gtp_data_resp = -1;
static gint ett_gtp_drx = -1;
static gint ett_gtp_net_cap = -1;
static gint ett_gtp_tmgi = -1;
static gint ett_gtp_cdr_ver = -1;
static gint ett_gtp_cdr_dr = -1;
static gint ett_gtp_uli_rai = -1;
static gint ett_gtp_mm_cntxt = -1;
static expert_field ei_gtp_ext_hdr_pdcpsn = EI_INIT;
static expert_field ei_gtp_ext_length_mal = EI_INIT;
static expert_field ei_gtp_ext_length_warn = EI_INIT;
static expert_field ei_gtp_undecoded = EI_INIT;
static expert_field ei_gtp_message_not_found = EI_INIT;
static expert_field ei_gtp_field_not_present = EI_INIT;
static expert_field ei_gtp_wrong_next_field = EI_INIT;
static expert_field ei_gtp_field_not_support_in_version = EI_INIT;
static expert_field ei_gtp_guaranteed_bit_rate_value = EI_INIT;
static expert_field ei_gtp_max_bit_rate_value = EI_INIT;
static expert_field ei_gtp_ext_geo_loc_type = EI_INIT;
static expert_field ei_gtp_iei = EI_INIT;
static expert_field ei_gtp_unknown_extention_header = EI_INIT;
static gboolean g_gtp_etsi_order = FALSE;
static gint dissect_tpdu_as = GTP_TPDU_AS_TPDU;
static const enum_val_t gtp_decode_tpdu_as[] = {
{"none", "None", GTP_TPDU_AS_NONE},
{"tpdu", "TPDU", GTP_TPDU_AS_TPDU},
{"sync", "SYNC", GTP_TPDU_AS_SYNC},
{NULL, NULL, 0}
};
static int gtp_tap = -1;
static int gtpv1_tap = -1;
/* 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_UDP_PORT 0x40
#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_UDP_PORT, "UDP Port number"},
{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
/* Traffic Flow Templates mask */
#define GTPv1_TFT_CODE_MASK 0xE0
#define GTPv1_TFT_SPARE_MASK 0x10
#define GTPv1_TFT_NUMBER_MASK 0x0F
/* 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_SRC_STAT_DESC_MASK 0x0F
#define GTP_EXT_QOS_SIG_IND_MASK 0x10
/* 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
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"},
/* 61-69 For future use. Shall not be sent. If received,
* shall be treated as an Unknown message.
*/
#if 0
{ 61, "Unknown message(For future use)"},
{ 62, "Unknown message(For future use)"},
{ 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_SSGN_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 */
/* 217-238 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_SSGN_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*/
/* 217-238 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_SSGN_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*/
/* 217-238 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"},
/* For future use 231-240 */
/* 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}
};
/* TODO: CHeck if all ms_reasons are included */
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"},
{0, NULL}
};
/* 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"},
{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 const value_string tft_code_type[] = {
{0, "Spare"},
{1, "Create new TFT"},
{2, "Delete existing TFT"},
{3, "Add packet filters to existing TFT"},
{4, "Replace packet filters in existing TFT"},
{5, "Delete packet filters from existing TFT"},
{6, "Reserved"},
{7, "Reserved"},
{0, NULL}
};
static void
gtpstat_init(struct register_srt* srt _U_, GArray* srt_array, srt_gui_init_cb gui_callback, void* gui_data)
{
srt_stat_table *gtp_srt_table;
gtp_srt_table = init_srt_table("GTP Requests", NULL, srt_array, 4, NULL, NULL, gui_callback, gui_data, NULL);
init_srt_table_row(gtp_srt_table, 0, "Echo");
init_srt_table_row(gtp_srt_table, 1, "Create PDP context");
init_srt_table_row(gtp_srt_table, 2, "Update PDP context");
init_srt_table_row(gtp_srt_table, 3, "Delete PDP context");
}
static int
gtpstat_packet(void *pss, packet_info *pinfo, epan_dissect_t *edt _U_, const void *prv)
{
guint 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 0;
}
/* if we have not seen the request, just ignore it */
if(!gtp->req_frame){
return 0;
}
/* Only use the commands we know how to handle, this is not a comprehensive list */
/* Redoing the message indexing is bit reduntant, */
/* but using message type as such would yield a long gtp_srt_table. */
/* Only a fraction of the messages are matchable req/resp pairs, */
/* it just doesn't feel feasible. */
switch(gtp->msgtype){
case GTP_MSG_ECHO_REQ: idx=0;
break;
case GTP_MSG_CREATE_PDP_REQ: idx=1;
break;
case GTP_MSG_UPDATE_PDP_REQ: idx=2;
break;
case GTP_MSG_DELETE_PDP_REQ: idx=3;
break;
default:
return 0;
}
gtp_srt_table = g_array_index(data->srt_array, srt_stat_table*, i);
add_srt_table_data(gtp_srt_table, idx, >p->req_time, pinfo);
return 1;
}
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_table_t bssap_pdu_type_table;
guint32 gtp_session_count;
/* Relation between frame -> session */
GHashTable* session_table;
/* Relation between <teid,ip> -> frame */
wmem_tree_t* frame_tree;
typedef struct gtp_info {
guint32 teid;
guint32 frame;
} gtp_info_t;
/* GTP Session funcs*/
guint32
get_frame(address ip, guint32 teid, guint32 *frame) {
gboolean found = FALSE;
wmem_list_frame_t *elem;
gtp_info_t *info;
wmem_list_t *info_list;
gchar *ip_str;
/* First we get the teid list*/
ip_str = address_to_str(wmem_packet_scope(), &ip);
info_list = (wmem_list_t*)wmem_tree_lookup_string(frame_tree, ip_str, 0);
if (info_list != NULL) {
elem = wmem_list_head(info_list);
while (!found && elem) {
info = (gtp_info_t*)wmem_list_frame_data(elem);
if (teid == info->teid) {
*frame = info->frame;
return 1;
}
elem = wmem_list_frame_next(elem);
}
}
return 0;
}
static void
call_foreach_ip(const void *key _U_, void *value, void *data){
wmem_list_frame_t * elem;
wmem_list_t *info_list = (wmem_list_t *)value;
gtp_info_t *info;
guint32* frame = (guint32*)data;
/* We loop over the <teid, frame> list */
elem = wmem_list_head(info_list);
while (elem) {
info = (gtp_info_t*)wmem_list_frame_data(elem);
if (info->frame == *frame) {
wmem_list_frame_t * del = elem;
/* proceed to next request */
elem = wmem_list_frame_next(elem);
/* If we find the frame we remove its information from the list */
wmem_list_remove_frame(info_list, del);
wmem_free(wmem_file_scope(), info);
}
else {
elem = wmem_list_frame_next(elem);
}
}
}
void
remove_frame_info(guint32 *f) {
/* For each ip node */
wmem_tree_foreach(frame_tree, (wmem_foreach_func)call_foreach_ip, (void *)f);
}
void
add_gtp_session(guint32 frame, guint32 session) {
guint32 *f, *session_count;
f = wmem_new0(wmem_file_scope(), guint32);
session_count = wmem_new0(wmem_file_scope(), guint32);
*f = frame;
*session_count = session;
g_hash_table_insert(session_table, f, session_count);
}
gboolean
teid_exists(guint32 teid, wmem_list_t *teid_list) {
wmem_list_frame_t *elem;
guint32 *info;
gboolean found;
found = FALSE;
elem = wmem_list_head(teid_list);
while (!found && elem) {
info = (guint32*)wmem_list_frame_data(elem);
found = *info == teid;
elem = wmem_list_frame_next(elem);
}
return found;
}
gboolean
ip_exists(address ip, wmem_list_t *ip_list) {
wmem_list_frame_t *elem;
address *info;
gboolean 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;
}
static gboolean
info_exists(gtp_info_t *wanted, wmem_list_t *info_list) {
wmem_list_frame_t *elem;
gtp_info_t *info;
gboolean found;
found = FALSE;
elem = wmem_list_head(info_list);
while (!found && elem) {
info = (gtp_info_t*)wmem_list_frame_data(elem);
found = wanted->teid == info->teid;
elem = wmem_list_frame_next(elem);
}
return found;
}
void
fill_map(wmem_list_t *teid_list, wmem_list_t *ip_list, guint32 frame) {
wmem_list_frame_t *elem_ip, *elem_teid;
gtp_info_t *gtp_info;
wmem_list_t * info_list; /* List of <teids,frames>*/
guint32 *f, *session, *fr, *session_count;
GHashTableIter iter;
guint32 teid;
gchar *ip;
elem_ip = wmem_list_head(ip_list);
while (elem_ip) {
ip = address_to_str(wmem_file_scope(), (address*)wmem_list_frame_data(elem_ip));
/* We check if a teid list exists for this ip */
info_list = (wmem_list_t*)wmem_tree_lookup_string(frame_tree, ip, 0);
if (info_list == NULL) {
info_list = wmem_list_new(wmem_file_scope());
}
/* We loop over the teid list */
elem_teid = wmem_list_head(teid_list);
while (elem_teid) {
teid = *(guint32*)wmem_list_frame_data(elem_teid);
f = wmem_new0(wmem_file_scope(), guint32);
*f = frame;
gtp_info = wmem_new0(wmem_file_scope(), gtp_info_t);
gtp_info->teid = teid;
gtp_info->frame = *f;
if (info_exists(gtp_info, info_list)) {
/* If the teid and ip already existed, that means that we need to remove old info about that session */
/* We look for its session ID */
session = (guint32 *)g_hash_table_lookup(session_table, f);
if (session) {
g_hash_table_iter_init(&iter, session_table);
while (g_hash_table_iter_next(&iter, (gpointer*)&fr, (gpointer*)&session_count)) {
/* If the msg has the same session ID and it's not the upd req we have to remove its info */
if (*session_count == *session) {
/* If it's the session we are looking for, we remove all the frame information */
remove_frame_info(fr);
}
}
}
}
wmem_list_prepend(info_list, gtp_info);
elem_teid = wmem_list_frame_next(elem_teid);
}
wmem_tree_insert_string(frame_tree, ip, info_list, 0);
elem_ip = wmem_list_frame_next(elem_ip);
}
}
gboolean
is_cause_accepted(guint8 cause, guint32 version) {
if (version == 1) {
return cause == 128;
}
else if (version == 2) {
return cause == 16;
}
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(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_ssgn_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 _U_, 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 _U_, 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_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 _gtp_opt {
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_SSGN_NO, decode_gtp_ssgn_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}, /* 7.7.87 */
/* 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 */
/* 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 gint ett_gtp_ies[NUM_GTP_IES];
static guint8 gtp_version = 0;
#define BCD2CHAR(d) ((d) | 0x30)
static gchar *
id_to_str(tvbuff_t *tvb, gint offset)
{
static gchar str[17] = " ";
guint8 bits8to5, bits4to1;
int i, j;
guint8 ad;
for (i = j = 0; i < 8; i++) {
ad = tvb_get_guint8(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 checks if given field
* in GTP packet is compliant with ETSI
*/
typedef struct _header {
guint8 code;
guint8 presence;
} ext_header;
typedef struct _message {
guint8 code;
ext_header fields[32];
} _gtp_mess_items;
/* ---------------------
* GPRS messages
* ---------------------*/
static _gtp_mess_items gprs_mess_items[] = {
{
GTP_MSG_ECHO_REQ, {
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_ECHO_RESP, {
{GTP_EXT_RECOVER, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_VER_NOT_SUPP, {
{0, 0}
}
},
{
GTP_MSG_NODE_ALIVE_REQ, {
{GTP_EXT_NODE_ADDR, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_NODE_ALIVE_RESP, {
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_REDIR_REQ, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_NODE_ADDR, GTP_OPTIONAL},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_REDIR_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_CREATE_PDP_REQ, {
{GTP_EXT_QOS_GPRS, GTP_MANDATORY},
{GTP_EXT_RECOVER, GTP_OPTIONAL},
{GTP_EXT_SEL_MODE, GTP_MANDATORY},
{GTP_EXT_FLOW_LABEL, GTP_MANDATORY},
{GTP_EXT_FLOW_SIG, GTP_MANDATORY},
{GTP_EXT_MSISDN, GTP_MANDATORY},
{GTP_EXT_USER_ADDR, GTP_MANDATORY},
{GTP_EXT_APN, GTP_MANDATORY},
{GTP_EXT_PROTO_CONF, GTP_OPTIONAL},
{GTP_EXT_GSN_ADDR, GTP_MANDATORY},
{GTP_EXT_GSN_ADDR, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_CREATE_PDP_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_QOS_GPRS, GTP_CONDITIONAL},
{GTP_EXT_REORDER, GTP_CONDITIONAL},
{GTP_EXT_RECOVER, GTP_OPTIONAL},
{GTP_EXT_FLOW_LABEL, GTP_CONDITIONAL},
{GTP_EXT_FLOW_SIG, GTP_CONDITIONAL},
{GTP_EXT_CHRG_ID, GTP_CONDITIONAL},
{GTP_EXT_USER_ADDR, GTP_CONDITIONAL},
{GTP_EXT_PROTO_CONF, GTP_OPTIONAL},
{GTP_EXT_GSN_ADDR, GTP_CONDITIONAL},
{GTP_EXT_GSN_ADDR, GTP_CONDITIONAL},
{GTP_EXT_CHRG_ADDR, GTP_OPTIONAL},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_UPDATE_PDP_REQ, {
{GTP_EXT_QOS_GPRS, GTP_MANDATORY},
{GTP_EXT_RECOVER, GTP_OPTIONAL},
{GTP_EXT_FLOW_LABEL, GTP_MANDATORY},
{GTP_EXT_FLOW_SIG, GTP_MANDATORY},
{GTP_EXT_GSN_ADDR, GTP_MANDATORY},
{GTP_EXT_GSN_ADDR, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0},
}
},
{
GTP_MSG_UPDATE_PDP_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_QOS_GPRS, GTP_CONDITIONAL},
{GTP_EXT_RECOVER, GTP_OPTIONAL},
{GTP_EXT_FLOW_LABEL, GTP_CONDITIONAL},
{GTP_EXT_FLOW_SIG, GTP_CONDITIONAL},
{GTP_EXT_CHRG_ID, GTP_CONDITIONAL},
{GTP_EXT_GSN_ADDR, GTP_CONDITIONAL},
{GTP_EXT_GSN_ADDR, GTP_CONDITIONAL},
{GTP_EXT_CHRG_ADDR, GTP_OPTIONAL},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_DELETE_PDP_REQ, {
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_DELETE_PDP_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0},
}
},
{
GTP_MSG_INIT_PDP_CONTEXT_ACT_REQ, {
{GTP_EXT_QOS_GPRS, GTP_MANDATORY},
{GTP_EXT_RECOVER, GTP_OPTIONAL},
{GTP_EXT_SEL_MODE, GTP_MANDATORY},
{GTP_EXT_FLOW_LABEL, GTP_MANDATORY},
{GTP_EXT_FLOW_SIG, GTP_MANDATORY},
{GTP_EXT_USER_ADDR, GTP_MANDATORY},
{GTP_EXT_APN, GTP_MANDATORY},
{GTP_EXT_PROTO_CONF, GTP_OPTIONAL},
{GTP_EXT_GSN_ADDR, GTP_MANDATORY},
{GTP_EXT_GSN_ADDR, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_INIT_PDP_CONTEXT_ACT_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_QOS_GPRS, GTP_CONDITIONAL},
{GTP_EXT_REORDER, GTP_CONDITIONAL},
{GTP_EXT_RECOVER, GTP_OPTIONAL},
{GTP_EXT_FLOW_LABEL, GTP_CONDITIONAL},
{GTP_EXT_FLOW_SIG, GTP_CONDITIONAL},
{GTP_EXT_CHRG_ID, GTP_CONDITIONAL},
{GTP_EXT_USER_ADDR, GTP_CONDITIONAL},
{GTP_EXT_PROTO_CONF, GTP_OPTIONAL},
{GTP_EXT_GSN_ADDR, GTP_CONDITIONAL},
{GTP_EXT_GSN_ADDR, GTP_CONDITIONAL},
{GTP_EXT_CHRG_ADDR, GTP_OPTIONAL},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_DELETE_AA_PDP_REQ, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_DELETE_AA_PDP_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_ERR_IND, {
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_PDU_NOTIFY_REQ, {
{GTP_EXT_USER_ADDR, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_PDU_NOTIFY_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_PDU_NOTIFY_REJ_REQ, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_USER_ADDR, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_PDU_NOTIFY_REJ_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_SEND_ROUT_INFO_REQ, {
{GTP_EXT_IMSI, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_SEND_ROUT_INFO_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_IMSI, GTP_MANDATORY},
{GTP_EXT_MAP_CAUSE, GTP_OPTIONAL},
{GTP_EXT_MS_REASON, GTP_OPTIONAL},
{GTP_EXT_GSN_ADDR, GTP_OPTIONAL},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_FAIL_REP_REQ, {
{GTP_EXT_IMSI, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_FAIL_REP_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_MAP_CAUSE, GTP_OPTIONAL},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_MS_PRESENT_REQ, {
{GTP_EXT_IMSI, GTP_MANDATORY},
{GTP_EXT_GSN_ADDR, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_MS_PRESENT_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_IDENT_REQ, {
{GTP_EXT_RAI, GTP_MANDATORY},
{GTP_EXT_PTMSI, GTP_MANDATORY},
{GTP_EXT_PTMSI_SIG, GTP_OPTIONAL},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_IDENT_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_IMSI, GTP_CONDITIONAL},
{GTP_EXT_AUTH_TRI, GTP_OPTIONAL},
{GTP_EXT_AUTH_QUI, GTP_OPTIONAL},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_SGSN_CNTXT_REQ, {
{GTP_EXT_IMSI, GTP_CONDITIONAL},
{GTP_EXT_RAI, GTP_MANDATORY},
{GTP_EXT_TLLI, GTP_MANDATORY},
{GTP_EXT_PTMSI_SIG, GTP_OPTIONAL},
{GTP_EXT_MS_VALID, GTP_OPTIONAL},
{GTP_EXT_FLOW_SIG, GTP_MANDATORY},
{0, 0}
}
},
{
GTP_MSG_SGSN_CNTXT_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_IMSI, GTP_CONDITIONAL},
{GTP_EXT_FLOW_SIG, GTP_CONDITIONAL},
{GTP_EXT_MM_CNTXT, GTP_CONDITIONAL},
{GTP_EXT_PDP_CNTXT, GTP_CONDITIONAL},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_SGSN_CNTXT_ACK, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_FLOW_II, GTP_CONDITIONAL},
{GTP_EXT_GSN_ADDR, GTP_CONDITIONAL},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_DATA_TRANSF_REQ, {
{GTP_EXT_TR_COMM, GTP_MANDATORY},
{GTP_EXT_DATA_REQ, GTP_CONDITIONAL},
{GTP_EXT_REL_PACK, GTP_CONDITIONAL},
{GTP_EXT_CAN_PACK, GTP_CONDITIONAL},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_DATA_TRANSF_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_DATA_RESP, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
0, {
{0, 0}
}
}
};
/* -----------------------------
* UMTS messages
* -----------------------------*/
static _gtp_mess_items umts_mess_items[] = {
/* 7.2 Path Management Messages */
{
GTP_MSG_ECHO_REQ, {
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_ECHO_RESP, {
{GTP_EXT_RECOVER, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_VER_NOT_SUPP, {
{0, 0}
}
},
{
GTP_MSG_SUPP_EXT_HDR, {
{GTP_EXT_HDR_LIST, GTP_MANDATORY},
{0, 0}
}
},
/* ??? */
{
GTP_MSG_NODE_ALIVE_REQ, {
{GTP_EXT_NODE_ADDR, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_NODE_ALIVE_RESP, {
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_REDIR_REQ, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_NODE_ADDR, GTP_OPTIONAL},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_REDIR_REQ, {
{0, 0}
}
},
/* 7.3 Tunnel Management Messages */
{
GTP_MSG_CREATE_PDP_REQ, {
{GTP_EXT_IMSI, GTP_CONDITIONAL},
/* RAI is in TS 29.060 V6.11.0 */
{GTP_EXT_RAI, GTP_OPTIONAL}, /* Routeing Area Identity (RAI) Optional 7.7.3 */
{GTP_EXT_RECOVER, GTP_OPTIONAL},
{GTP_EXT_SEL_MODE, GTP_CONDITIONAL},
{GTP_EXT_TEID, GTP_MANDATORY},
{GTP_EXT_TEID_CP, GTP_CONDITIONAL},
{GTP_EXT_NSAPI, GTP_MANDATORY},
{GTP_EXT_NSAPI, GTP_CONDITIONAL},
{GTP_EXT_CHRG_CHAR, GTP_OPTIONAL},
{GTP_EXT_TRACE_REF, GTP_OPTIONAL},
{GTP_EXT_TRACE_TYPE, GTP_OPTIONAL},
{GTP_EXT_USER_ADDR, GTP_CONDITIONAL},
{GTP_EXT_APN, GTP_CONDITIONAL},
{GTP_EXT_PROTO_CONF, GTP_CONDITIONAL},
{GTP_EXT_GSN_ADDR, GTP_MANDATORY},
{GTP_EXT_GSN_ADDR, GTP_MANDATORY},
{GTP_EXT_MSISDN, GTP_CONDITIONAL},
{GTP_EXT_QOS_UMTS, GTP_MANDATORY},
{GTP_EXT_TFT, GTP_CONDITIONAL},
{GTP_EXT_TRIGGER_ID, GTP_OPTIONAL},
{GTP_EXT_OMC_ID, GTP_OPTIONAL},
/* TS 29.060 V6.11.0 */
{GTP_EXT_APN_RES, GTP_OPTIONAL},
{GTP_EXT_RAT_TYPE, GTP_OPTIONAL},
{GTP_EXT_USR_LOC_INF, GTP_OPTIONAL},
{GTP_EXT_MS_TIME_ZONE, GTP_OPTIONAL},
{GTP_EXT_IMEISV, GTP_OPTIONAL},
{GTP_EXT_CAMEL_CHG_INF_CON, GTP_OPTIONAL},
{GTP_EXT_ADD_TRS_INF, GTP_OPTIONAL},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_CREATE_PDP_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_REORDER, GTP_CONDITIONAL},
{GTP_EXT_RECOVER, GTP_OPTIONAL},
{GTP_EXT_TEID, GTP_CONDITIONAL},
{GTP_EXT_TEID_CP, GTP_CONDITIONAL},
{GTP_EXT_NSAPI, GTP_CONDITIONAL},
{GTP_EXT_CHRG_ID, GTP_CONDITIONAL},
{GTP_EXT_USER_ADDR, GTP_CONDITIONAL},
{GTP_EXT_PROTO_CONF, GTP_OPTIONAL},
{GTP_EXT_GSN_ADDR, GTP_CONDITIONAL},
{GTP_EXT_GSN_ADDR, GTP_CONDITIONAL},
{GTP_EXT_QOS_UMTS, GTP_CONDITIONAL},
{GTP_EXT_CHRG_ADDR, GTP_OPTIONAL},
/* TS 29.060 V6.11.0 */
{GTP_EXT_CHRG_ADDR, GTP_OPTIONAL}, /* Alternative Charging Gateway Address Optional 7.7.44 */
{GTP_EXT_COMMON_FLGS, GTP_OPTIONAL}, /* Common Flags Optional 7.7.48 */
{GTP_EXT_APN_RES, GTP_OPTIONAL}, /* APN Restriction Optional 7.7.49 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{ /* checked, SGSN -> GGSN */
GTP_MSG_UPDATE_PDP_REQ, {
{GTP_EXT_IMSI, GTP_CONDITIONAL},
{GTP_EXT_RAI, GTP_OPTIONAL}, /* Routeing Area Identity (RAI) Optional 7.7.3 */
{GTP_EXT_RECOVER, GTP_OPTIONAL},
{GTP_EXT_TEID, GTP_MANDATORY},
{GTP_EXT_TEID_CP, GTP_CONDITIONAL},
{GTP_EXT_NSAPI, GTP_MANDATORY},
{GTP_EXT_TRACE_REF, GTP_OPTIONAL},
{GTP_EXT_TRACE_TYPE, GTP_OPTIONAL},
{GTP_EXT_PROTO_CONF, GTP_OPTIONAL}, /* Protocol Configuration Options Optional 7.7.31 */
{GTP_EXT_GSN_ADDR, GTP_MANDATORY}, /* SGSN Address for Control Plane Mandatory GSN Address 7.7.32 */
{GTP_EXT_GSN_ADDR, GTP_MANDATORY}, /* SGSN Address for User Traffic Mandatory GSN Address 7.7.32 */
{GTP_EXT_GSN_ADDR, GTP_OPTIONAL}, /* Alternative SGSN Address for Control Plane Conditional GSN Address 7.7.32 */
{GTP_EXT_GSN_ADDR, GTP_OPTIONAL}, /* Alternative SGSN Address for User Traffic Conditional GSN Address 7.7.32 */
{GTP_EXT_QOS_UMTS, GTP_MANDATORY},
{GTP_EXT_TFT, GTP_OPTIONAL},
{GTP_EXT_TRIGGER_ID, GTP_OPTIONAL},
{GTP_EXT_OMC_ID, GTP_OPTIONAL},
{GTP_EXT_COMMON_FLGS, GTP_OPTIONAL}, /* Common Flags Optional 7.7.48 */
{GTP_EXT_RAT_TYPE, GTP_OPTIONAL}, /* RAT Type Optional 7.7.50 */
{GTP_EXT_USR_LOC_INF, GTP_OPTIONAL}, /* User Location Information Optional 7.7.51 */
{GTP_EXT_MS_TIME_ZONE, GTP_OPTIONAL}, /* MS Time Zone Optional 7.7.52 */
{GTP_EXT_ADD_TRS_INF, GTP_OPTIONAL}, /* Additonal Trace Info Optional 7.7.62 */
{GTP_EXT_DIRECT_TUNNEL_FLGS, GTP_OPTIONAL}, /* Direct Tunnel Flags 7.7.81 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{ /* checked, GGSN -> SGSN */
GTP_MSG_UPDATE_PDP_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_RECOVER, GTP_OPTIONAL},
{GTP_EXT_TEID, GTP_CONDITIONAL},
{GTP_EXT_TEID_CP, GTP_CONDITIONAL},
{GTP_EXT_CHRG_ID, GTP_CONDITIONAL},
{GTP_EXT_PROTO_CONF, GTP_OPTIONAL}, /* Protocol Configuration Options Optional 7.7.31 */
{GTP_EXT_GSN_ADDR, GTP_CONDITIONAL},
{GTP_EXT_GSN_ADDR, GTP_CONDITIONAL},
{GTP_EXT_GSN_ADDR, GTP_OPTIONAL}, /* Alternative SGSN Address for Control Plane Conditional GSN Address 7.7.32 */
{GTP_EXT_GSN_ADDR, GTP_OPTIONAL}, /* Alternative SGSN Address for User Traffic Conditional GSN Address 7.7.32 */
{GTP_EXT_QOS_UMTS, GTP_CONDITIONAL},
{GTP_EXT_CHRG_ADDR, GTP_OPTIONAL},
{GTP_EXT_CHRG_ADDR, GTP_OPTIONAL}, /* Alternative Charging Gateway Address Optional 7.7.44 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{GTP_EXT_COMMON_FLGS, GTP_OPTIONAL}, /* Common Flags Optional 7.7.48 */
{GTP_EXT_APN_RES, GTP_OPTIONAL}, /* APN Restriction Optional 7.7.49 */
{0, 0}
}
},
{
GTP_MSG_DELETE_PDP_REQ, {
{GTP_EXT_TEAR_IND, GTP_CONDITIONAL},
{GTP_EXT_NSAPI, GTP_MANDATORY},
{GTP_EXT_PROTO_CONF, GTP_OPTIONAL}, /* Protocol Configuration Options Optional 7.7.31 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_DELETE_PDP_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_PROTO_CONF, GTP_OPTIONAL}, /* Protocol Configuration Options Optional 7.7.31 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_ERR_IND, {
{GTP_EXT_TEID, GTP_MANDATORY},
{GTP_EXT_GSN_ADDR, GTP_MANDATORY}, /* GSN Address Mandatory 7.7.32 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_PDU_NOTIFY_REQ, {
{GTP_EXT_IMSI, GTP_MANDATORY},
{GTP_EXT_TEID_CP, GTP_MANDATORY},
{GTP_EXT_USER_ADDR, GTP_MANDATORY},
{GTP_EXT_APN, GTP_MANDATORY},
{GTP_EXT_PROTO_CONF, GTP_OPTIONAL}, /* Protocol Configuration Options Optional 7.7.31 */
{GTP_EXT_GSN_ADDR, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_PDU_NOTIFY_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_PDU_NOTIFY_REJ_REQ, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_TEID_CP, GTP_MANDATORY},
{GTP_EXT_USER_ADDR, GTP_MANDATORY},
{GTP_EXT_APN, GTP_MANDATORY},
{GTP_EXT_PROTO_CONF, GTP_OPTIONAL}, /* Protocol Configuration Options Optional 7.7.31 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_PDU_NOTIFY_REJ_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
/* 7.4 Location Management Messages */
{
GTP_MSG_SEND_ROUT_INFO_REQ, {
{GTP_EXT_IMSI, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_SEND_ROUT_INFO_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_IMSI, GTP_MANDATORY},
{GTP_EXT_MAP_CAUSE, GTP_OPTIONAL},
{GTPv1_EXT_MS_REASON, GTP_OPTIONAL},
{GTP_EXT_GSN_ADDR, GTP_OPTIONAL},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_FAIL_REP_REQ, {
{GTP_EXT_IMSI, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_FAIL_REP_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_MAP_CAUSE, GTP_OPTIONAL},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_MS_PRESENT_REQ, {
{GTP_EXT_IMSI, GTP_MANDATORY},
{GTP_EXT_GSN_ADDR, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_MS_PRESENT_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
/* 7.5 Mobility Management Messages */
{
GTP_MSG_IDENT_REQ, {
{GTP_EXT_RAI, GTP_MANDATORY},
{GTP_EXT_PTMSI, GTP_MANDATORY},
{GTP_EXT_PTMSI_SIG, GTP_CONDITIONAL},
{GTP_EXT_GSN_ADDR, GTP_OPTIONAL}, /* SGSN Address for Control Plane Optional 7.7.32 */
{GTP_EXT_HOP_COUNT, GTP_OPTIONAL}, /* Hop Counter Optional 7.7.63 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_IDENT_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_IMSI, GTP_CONDITIONAL},
{GTP_EXT_AUTH_TRI, GTP_CONDITIONAL},
{GTP_EXT_AUTH_QUI, GTP_CONDITIONAL},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_SGSN_CNTXT_REQ, {
{GTP_EXT_IMSI, GTP_CONDITIONAL},
{GTP_EXT_RAI, GTP_MANDATORY},
{GTP_EXT_TLLI, GTP_CONDITIONAL},
{GTP_EXT_PTMSI, GTP_CONDITIONAL},
{GTP_EXT_PTMSI_SIG, GTP_CONDITIONAL},
{GTP_EXT_MS_VALID, GTP_OPTIONAL},
{GTP_EXT_TEID_CP, GTP_MANDATORY},
{GTP_EXT_GSN_ADDR, GTP_MANDATORY},
{GTP_EXT_GSN_ADDR, GTP_OPTIONAL}, /* Alternative SGSN Address for Control Plane Optional 7.7.32 */
{GTP_EXT_SSGN_NO, GTP_OPTIONAL}, /* SGSN Number Optional 7.7.47 */
{GTP_EXT_HOP_COUNT, GTP_OPTIONAL}, /* Hop Counter Optional 7.7.63 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_SGSN_CNTXT_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_IMSI, GTP_CONDITIONAL},
{GTP_EXT_TEID_CP, GTP_CONDITIONAL},
{GTP_EXT_RAB_CNTXT, GTP_CONDITIONAL}, /* RAB Context Conditional 7.7.19 */
{GTP_EXT_RP_SMS, GTP_OPTIONAL},
{GTP_EXT_RP, GTP_OPTIONAL},
{GTP_EXT_PKT_FLOW_ID, GTP_OPTIONAL},
{GTP_EXT_CHRG_CHAR, GTP_OPTIONAL}, /* CharingCharacteristics Optional 7.7.23 */
{GTP_EXT_RA_PRIO_LCS, GTP_OPTIONAL}, /* Radio Priority LCS Optional 7.7.25B */
{GTP_EXT_MM_CNTXT, GTP_CONDITIONAL},
{GTP_EXT_PDP_CNTXT, GTP_CONDITIONAL},
{GTP_EXT_GSN_ADDR, GTP_CONDITIONAL},
{GTP_EXT_PDP_CONT_PRIO, GTP_OPTIONAL}, /* PDP Context Prioritization Optional 7.7.45 */
{GTP_EXT_MBMS_UE_CTX, GTP_OPTIONAL}, /* MBMS UE Context Optional 7.7.55 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_SGSN_CNTXT_ACK, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_TEID_II, GTP_CONDITIONAL},
{GTP_EXT_GSN_ADDR, GTP_CONDITIONAL},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_FORW_RELOC_REQ, {
{GTP_EXT_IMSI, GTP_MANDATORY},
{GTP_EXT_TEID_CP, GTP_MANDATORY},
{GTP_EXT_RANAP_CAUSE, GTP_MANDATORY},
{GTP_EXT_CHRG_CHAR, GTP_OPTIONAL}, /* CharingCharacteristics Optional 7.7.23 */
{GTP_EXT_MM_CNTXT, GTP_MANDATORY},
{GTP_EXT_PDP_CNTXT, GTP_CONDITIONAL},
{GTP_EXT_GSN_ADDR, GTP_MANDATORY},
{GTP_EXT_TARGET_ID, GTP_MANDATORY},
{GTP_EXT_UTRAN_CONT, GTP_MANDATORY},
{GTP_EXT_PDP_CONT_PRIO, GTP_OPTIONAL}, /* PDP Context Prioritization Optional 7.7.45 */
{GTP_EXT_MBMS_UE_CTX, GTP_OPTIONAL}, /* MBMS UE Context Optional 7.7.55 */
{GTP_EXT_SEL_PLMN_ID, GTP_OPTIONAL}, /* Selected PLMN ID Optional 7.7.64 */
{GTP_EXT_PS_HO_REQ_CTX, GTP_OPTIONAL}, /* PS Handover Request Context Optional 7.7.71 */
{GTP_EXT_BSS_CONT, GTP_OPTIONAL}, /* BSS Container Optional 7.7.72 */
{GTP_EXT_CELL_ID, GTP_OPTIONAL}, /* Cell Identification Optional 7.7.73 */
{GTP_EXT_BSSGP_CAUSE, GTP_OPTIONAL}, /* BSSGP Cause Optional 7.7.75 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{GTP_EXT_SSGN_NO, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_FORW_RELOC_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_TEID_CP, GTP_CONDITIONAL},
{GTP_EXT_TEID_II, GTP_CONDITIONAL}, /* Tunnel Endpoint Identifier Data II Optional 7.7.15 */
{GTP_EXT_RANAP_CAUSE, GTP_CONDITIONAL},
{GTP_EXT_GSN_ADDR, GTP_CONDITIONAL},
{GTP_EXT_UTRAN_CONT, GTP_OPTIONAL},
{GTP_EXT_RAB_SETUP, GTP_CONDITIONAL},
{GTP_EXT_ADD_RAB_SETUP_INF, GTP_CONDITIONAL}, /* Additional RAB Setup Information Conditional 7.7.45A */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_FORW_RELOC_COMP, {
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_RELOC_CANCEL_REQ, {
{GTP_EXT_IMSI, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_RELOC_CANCEL_RESP, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_FORW_RELOC_ACK, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_FORW_SRNS_CNTXT_ACK, {
{GTP_EXT_CAUSE, GTP_MANDATORY},
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MSG_FORW_SRNS_CNTXT, {
{GTP_EXT_RAB_CNTXT, GTP_MANDATORY},
{GTP_EXT_SRC_RNC_PDP_CTX_INF, GTP_OPTIONAL}, /* Source RNC PDCP context info Optional 7.7.61 */
{GTP_EXT_PDU_NO, GTP_OPTIONAL}, /* PDU Numbers Optional 7.7.74 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
/* 7.5.14 RAN Information Management Messages */
{
GTP_MSG_RAN_INFO_RELAY, {
{GTP_EXT_RAN_TR_CONT, GTP_MANDATORY}, /* RAN Transparent Container Mandatory 7.7.43 */
{GTP_EXT_RIM_RA, GTP_OPTIONAL}, /* RIM Routing Address Optional 7.7.57 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
/* 7.5A MBMS Messages
* 7.5A.1 UE Specific MBMS Messages
*/
{
GTP_MBMS_NOTIFY_REQ, {
{GTP_EXT_IMSI, GTP_MANDATORY}, /* IMSI Mandatory 7.7.2 */
{GTP_EXT_TEID_CP, GTP_MANDATORY}, /* Tunnel Endpoint Identifier Control Plane Mandatory 7.7.14 */
{GTP_EXT_NSAPI, GTP_MANDATORY}, /* NSAPI Mandatory 7.7.17 */
{GTP_EXT_USER_ADDR, GTP_MANDATORY}, /* End User Address Mandatory 7.7.27 */
{GTP_EXT_APN, GTP_MANDATORY}, /* Access Point Name Mandatory 7.7.30 */
{GTP_EXT_GSN_ADDR, GTP_MANDATORY}, /* GGSN Address for Control Plane Mandatory 7.7.32 */
{GTP_EXT_MBMS_PROT_CONF_OPT, GTP_OPTIONAL}, /* MBMS Protocol Configuration Options Optional 7.7.58 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL}, /* Private Extension Optional 7.7.46 */
{0, 0}
}
},
{
GTP_MBMS_NOTIFY_RES, {
{GTP_EXT_CAUSE, GTP_MANDATORY}, /* Cause Mandatory 7.7.1 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MBMS_NOTIFY_REJ_REQ, {
{GTP_EXT_CAUSE, GTP_MANDATORY}, /* Cause Mandatory 7.7.1 */
{GTP_EXT_TEID_CP, GTP_MANDATORY}, /* Tunnel Endpoint Identifier Control Plane Mandatory 7.7.14 */
{GTP_EXT_NSAPI, GTP_MANDATORY}, /* NSAPI Mandatory 7.7.17 */
{GTP_EXT_USER_ADDR, GTP_MANDATORY}, /* End User Address Mandatory 7.7.27 */
{GTP_EXT_APN, GTP_MANDATORY}, /* Access Point Name Mandatory 7.7.30 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MBMS_NOTIFY_REJ_RES, {
{GTP_EXT_CAUSE, GTP_MANDATORY}, /* Cause Mandatory 7.7.1 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_CREATE_MBMS_CNTXT_REQ, {
{GTP_EXT_IMSI, GTP_CONDITIONAL}, /* IMSI Conditional 7.7.2 */
{GTP_EXT_RAI, GTP_MANDATORY}, /* Routeing Area Identity (RAI) Mandatory 7.7.3 */
{GTP_EXT_RECOVER, GTP_OPTIONAL}, /* Recovery Optional 7.7.11 */
{GTP_EXT_SEL_MODE, GTP_CONDITIONAL}, /* Selection mode Conditional 7.7.12 */
{GTP_EXT_TEID_CP, GTP_CONDITIONAL}, /* Tunnel Endpoint Identifier Control Plane Conditional 7.7.14 */
{GTP_EXT_TRACE_REF, GTP_OPTIONAL}, /* Trace Reference Optional 7.7.24 */
{GTP_EXT_TRACE_TYPE, GTP_OPTIONAL}, /* Trace Type Optional 7.7.25 */
{GTP_EXT_USER_ADDR, GTP_MANDATORY}, /* End User Address Mandatory 7.7.27 */
{GTP_EXT_APN, GTP_MANDATORY}, /* Access Point Name Mandatory 7.7.30 */
{GTP_EXT_GSN_ADDR, GTP_MANDATORY}, /* SGSN Address for signalling Mandatory GSN Address 7.7.32 */
{GTP_EXT_MSISDN, GTP_CONDITIONAL}, /* MSISDN Conditional 7.7.33 */
{GTP_EXT_TRIGGER_ID, GTP_OPTIONAL}, /* Trigger Id Optional 7.7.41 */
{GTP_EXT_OMC_ID, GTP_OPTIONAL}, /* OMC Identity Optional 7.7.42 */
{GTP_EXT_RAT_TYPE, GTP_OPTIONAL}, /* RAT Type Optional 7.7.50 */
{GTP_EXT_USR_LOC_INF, GTP_OPTIONAL}, /* User Location Information Optional 7.7.51 */
{GTP_EXT_MS_TIME_ZONE, GTP_OPTIONAL}, /* MS Time Zone Optional 7.7.52 */
{GTP_EXT_IMEISV, GTP_OPTIONAL}, /* IMEI(SV) Optional 7.7.53 */
{GTP_EXT_MBMS_PROT_CONF_OPT, GTP_OPTIONAL}, /* MBMS Protocol Configuration Options Optional 7.7.58 */
{GTP_EXT_ADD_TRS_INF, GTP_OPTIONAL}, /* Additonal Trace Info Optional 7.7.62 */
{GTP_EXT_ENH_NSAPI, GTP_MANDATORY}, /* Enhanced NSAPI Mandatory 7.7.67 */
{GTP_EXT_ADD_MBMS_TRS_INF, GTP_OPTIONAL}, /* Additional MBMS Trace Info Optional 7.7.68 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_CREATE_MBMS_CNTXT_RES, {
{GTP_EXT_CAUSE, GTP_MANDATORY}, /* Cause Mandatory 7.7.1 */
{GTP_EXT_RECOVER, GTP_OPTIONAL}, /* Recovery Optional 7.7.11 */
{GTP_EXT_TEID_CP, GTP_CONDITIONAL}, /* Tunnel Endpoint Identifier Control Plane Conditional 7.7.14 */
{GTP_EXT_CHRG_ID, GTP_CONDITIONAL}, /* Charging ID Conditional 7.7.26 */
{GTP_EXT_GSN_ADDR, GTP_CONDITIONAL}, /* GGSN Address for Control Plane Conditional GSN Address 7.7.32 */
{GTP_EXT_GSN_ADDR, GTP_CONDITIONAL}, /* Alternative GGSN Address for Control Plane Conditional GSN Address 7.7.32 */
{GTP_EXT_CHRG_ADDR, GTP_OPTIONAL}, /* Charging Gateway Address Optional 7.7.44 */
{GTP_EXT_CHRG_ADDR, GTP_OPTIONAL}, /* Alternative Charging Gateway Address Optional 7.7.44 */
{GTP_EXT_MBMS_PROT_CONF_OPT, GTP_OPTIONAL}, /* MBMS Protocol Configuration Options Optional 7.7.58 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_UPD_MBMS_CNTXT_REQ, {
{GTP_EXT_IMSI, GTP_CONDITIONAL}, /* IMSI Conditional 7.7.2 */
{GTP_EXT_RAI, GTP_MANDATORY}, /* Routeing Area Identity (RAI) Mandatory 7.7.3 */
{GTP_EXT_RECOVER, GTP_OPTIONAL}, /* Recovery Optional 7.7.11 */
{GTP_EXT_TEID_CP, GTP_CONDITIONAL}, /* Tunnel Endpoint Identifier Control Plane Conditional 7.7.14 */
{GTP_EXT_TRACE_REF, GTP_OPTIONAL}, /* Trace Reference Optional 7.7.24 */
{GTP_EXT_TRACE_TYPE, GTP_OPTIONAL}, /* Trace Type Optional 7.7.25 */
{GTP_EXT_GSN_ADDR, GTP_MANDATORY}, /* SGSN Address for Control Plane Mandatory GSN Address 7.7.32 */
{GTP_EXT_GSN_ADDR, GTP_CONDITIONAL}, /* Alternative SGSN Address for Control Plane Conditional GSN Address 7.7.32 */
{GTP_EXT_TRIGGER_ID, GTP_OPTIONAL}, /* Trigger Id Optional 7.7.41 */
{GTP_EXT_OMC_ID, GTP_OPTIONAL}, /* OMC Identity Optional 7.7.42 */
{GTP_EXT_RAT_TYPE, GTP_OPTIONAL}, /* RAT Type Optional 7.7.50 */
{GTP_EXT_USR_LOC_INF, GTP_OPTIONAL}, /* User Location Information Optional 7.7.51 */
{GTP_EXT_MS_TIME_ZONE, GTP_OPTIONAL}, /* MS Time Zone Optional 7.7.52 */
{GTP_EXT_ADD_TRS_INF, GTP_OPTIONAL}, /* Additional Trace Info Optional 7.7.62 */
{GTP_EXT_ENH_NSAPI, GTP_MANDATORY}, /* Enhanced NSAPI Mandatory 7.7.67 */
{GTP_EXT_ADD_MBMS_TRS_INF, GTP_OPTIONAL}, /* Additional MBMS Trace Info Optional 7.7.68 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_UPD_MBMS_CNTXT_RES, {
{GTP_EXT_CAUSE, GTP_MANDATORY}, /* Cause Mandatory 7.7.1 */
{GTP_EXT_RECOVER, GTP_OPTIONAL}, /* Recovery Optional 7.7.11 */
{GTP_EXT_TEID_CP, GTP_MANDATORY}, /* Tunnel Endpoint Identifier Control Plane Conditional 7.7.14 */
{GTP_EXT_CHRG_ID, GTP_CONDITIONAL}, /* Charging ID Conditional 7.7.26 */
{GTP_EXT_GSN_ADDR, GTP_CONDITIONAL}, /* GGSN Address for Control Plane Conditional GSN Address 7.7.32 */
{GTP_EXT_GSN_ADDR, GTP_CONDITIONAL}, /* Alternative GGSN Address for Control Plane Conditional GSN Address 7.7.32 */
{GTP_EXT_CHRG_ADDR, GTP_OPTIONAL}, /* Charging Gateway Address Optional 7.7.44 */
{GTP_EXT_CHRG_ADDR, GTP_OPTIONAL}, /* Alternative Charging Gateway Address Optional 7.7.44 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL}, /* Private Extension Optional 7.7.46 */
{0, 0}
}
},
{
GTP_DEL_MBMS_CNTXT_REQ, {
{GTP_EXT_IMSI, GTP_CONDITIONAL}, /* IMSI Conditional 7.7.2 */
{GTP_EXT_TEID_CP, GTP_MANDATORY}, /* Tunnel Endpoint Identifier Control Plane Conditional 7.7.14 */
{GTP_EXT_USER_ADDR, GTP_CONDITIONAL}, /* End User Address Conditional 7.7.27 */
{GTP_EXT_APN, GTP_CONDITIONAL}, /* Access Point Name Conditional 7.7.30 */
{GTP_EXT_MBMS_PROT_CONF_OPT, GTP_OPTIONAL}, /* MBMS Protocol Configuration Options Optional 7.7.58 */
{GTP_EXT_ENH_NSAPI, GTP_MANDATORY}, /* Enhanced NSAPI Conditional 7.7.67 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL}, /* Private Extension Optional 7.7.46 */
{0, 0}
}
},
{
GTP_DEL_MBMS_CNTXT_RES, {
{GTP_EXT_CAUSE, GTP_MANDATORY}, /* Cause Mandatory 7.7.1 */
{GTP_EXT_MBMS_PROT_CONF_OPT, GTP_OPTIONAL}, /* MBMS Protocol Configuration Options Optional 7.7.58 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL},
{0, 0}
}
},
{
GTP_MBMS_REG_REQ, {
{GTP_EXT_USER_ADDR, GTP_MANDATORY}, /* End User Address Mandatory 7.7.27 */
{GTP_EXT_APN, GTP_MANDATORY}, /* Access Point Name Mandatory 7.7.30 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL}, /* Private Extension Optional 7.7.46 */
{0, 0}
}
},
{
GTP_MBMS_REG_RES, {
{GTP_EXT_CAUSE, GTP_MANDATORY}, /* Cause Mandatory 7.7.1 */
{GTP_EXT_TMGI, GTP_MANDATORY}, /* Temporary Mobile Group Identity (TMGI) Conditional 7.7.56 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL}, /* Private Extension Optional 7.7.46 */
{0, 0}
}
},
{
GTP_MBMS_DE_REG_REQ, {
{GTP_EXT_USER_ADDR, GTP_MANDATORY}, /* End User Address Mandatory 7.7.27 */
{GTP_EXT_APN, GTP_MANDATORY}, /* Access Point Name Mandatory 7.7.30 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL}, /* Private Extension Optional 7.7.46 */
{0, 0}
}
},
{
GTP_MBMS_DE_REG_RES, {
{GTP_EXT_CAUSE, GTP_MANDATORY}, /* Cause Mandatory 7.7.1 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL}, /* Private Extension Optional 7.7.46 */
{0, 0}
}
},
{
GTP_MBMS_SES_START_REQ, {
{GTP_EXT_RECOVER, GTP_OPTIONAL}, /* Recovery Optional 7.7.11 */
{GTP_EXT_TEID_CP, GTP_CONDITIONAL}, /* Tunnel Endpoint Identifier Control Plane Conditional 7.7.14 */
{GTP_EXT_USER_ADDR, GTP_MANDATORY}, /* End User Address Mandatory 7.7.27 */
{GTP_EXT_APN, GTP_MANDATORY}, /* Access Point Name Mandatory 7.7.30 */
{GTP_EXT_GSN_ADDR, GTP_CONDITIONAL}, /* GGSN Address for Control Plane Conditional GSN Address 7.7.32 */
{GTP_EXT_QOS_UMTS, GTP_MANDATORY}, /* Quality of Service Profile Mandatory 7.7.34 */
{GTP_EXT_COMMON_FLGS, GTP_OPTIONAL}, /* Common Flags Mandatory 7.7.48 */
{GTP_EXT_TMGI, GTP_MANDATORY}, /* Temporary Mobile Group Identity (TMGI) Mandatory 7.7.56 */
{GTP_EXT_MBMS_SES_DUR, GTP_MANDATORY}, /* MBMS Session Duration Mandatory 7.7.59 */
{GTP_EXT_MBMS_SA, GTP_MANDATORY}, /* MBMS Service Area Mandatory 7.7.60 */
{GTP_EXT_MBMS_SES_ID, GTP_OPTIONAL}, /* MBMS Session Identifier Optional 7.7.65 */
{GTP_EXT_MBMS_2G_3G_IND, GTP_MANDATORY}, /* MBMS 2G/3G Indicator Mandatory 7.7.66 */
{GTP_EXT_MBMS_SES_ID_REP_NO, GTP_OPTIONAL}, /* MBMS Session Identity Repetition Number Optional 7.7.69 */
{GTP_EXT_MBMS_TIME_TO_DATA_TR, GTP_MANDATORY}, /* MBMS Time To Data Transfer Mandatory 7.7.70 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL}, /* Private Extension Optional 7.7.46 */
{0, 0}
}
},
{
GTP_MBMS_SES_START_RES, {
{GTP_EXT_CAUSE, GTP_MANDATORY}, /* Cause Mandatory 7.7.1 */
{GTP_EXT_RECOVER, GTP_OPTIONAL}, /* Recovery Optional 7.7.11 */
{GTP_EXT_TEID, GTP_CONDITIONAL}, /* Tunnel Endpoint Identifier Data I Conditional 7.7.13 */
{GTP_EXT_TEID_CP, GTP_CONDITIONAL}, /* Tunnel Endpoint Identifier Control Plane Conditional 7.7.14 */
{GTP_EXT_GSN_ADDR, GTP_CONDITIONAL}, /* SGSN Address for Control Plane Conditional GSN Address 7.7.32 */
{GTP_EXT_GSN_ADDR, GTP_CONDITIONAL}, /* SGSN Address for user traffic Conditional GSN Address 7.7.32 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL}, /* Private Extension Optional 7.7.46 */
{0, 0}
}
},
{
GTP_MBMS_SES_STOP_REQ, {
{GTP_EXT_USER_ADDR, GTP_MANDATORY}, /* End User Address Mandatory 7.7.27 */
{GTP_EXT_APN, GTP_MANDATORY}, /* Access Point Name Mandatory 7.7.30 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL}, /* Private Extension Optional 7.7.46 */
{0, 0}
}
},
{
GTP_MBMS_SES_STOP_RES, {
{GTP_EXT_CAUSE, GTP_MANDATORY}, /* Cause Mandatory 7.7.1 */
{GTP_EXT_PRIV_EXT, GTP_OPTIONAL}, /* Private Extension Optional 7.7.46 */
{0, 0}
}
},
{
0, {
{0, 0}
}
}
};
/* Data structure attached to a conversation,
to keep track of request/response-pairs
*/
typedef struct gtp_conv_info_t {
struct gtp_conv_info_t *next;
GHashTable *unmatched;
GHashTable *matched;
} gtp_conv_info_t;
static gtp_conv_info_t *gtp_info_items = NULL;
static guint
gtp_sn_hash(gconstpointer k)
{
const gtp_msg_hash_t *key = (const gtp_msg_hash_t *)k;
return key->seq_nr;
}
static gint
gtp_sn_equal_matched(gconstpointer k1, gconstpointer 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;
if ( key1->req_frame && key2->req_frame && (key1->req_frame != key2->req_frame) ) {
return 0;
}
if ( key1->rep_frame && key2->rep_frame && (key1->rep_frame != key2->rep_frame) ) {
return 0;
}
return key1->seq_nr == key2->seq_nr;
}
static gint
gtp_sn_equal_unmatched(gconstpointer k1, gconstpointer 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;
return key1->seq_nr == key2->seq_nr;
}
static gtp_msg_hash_t *
gtp_match_response(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, gint seq_nr, guint msgtype, gtp_conv_info_t *gtp_info, guint8 last_cause)
{
gtp_msg_hash_t gcr, *gcrp = NULL;
guint32 *session;
gcr.seq_nr=seq_nr;
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:
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:
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 *)g_hash_table_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:
gcr.seq_nr=seq_nr;
gcrp=(gtp_msg_hash_t *)g_hash_table_lookup(gtp_info->unmatched, &gcr);
if (gcrp) {
g_hash_table_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;
g_hash_table_insert(gtp_info->unmatched, gcrp, gcrp);
return NULL;
break;
case GTP_MSG_ECHO_RESP:
case GTP_MSG_CREATE_PDP_RESP:
case GTP_MSG_UPDATE_PDP_RESP:
case GTP_MSG_DELETE_PDP_RESP:
gcr.seq_nr=seq_nr;
gcrp=(gtp_msg_hash_t *)g_hash_table_lookup(gtp_info->unmatched, &gcr);
if (gcrp) {
if (!gcrp->rep_frame) {
g_hash_table_remove(gtp_info->unmatched, gcrp);
gcrp->rep_frame=pinfo->num;
gcrp->is_request=FALSE;
g_hash_table_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 = (guint32 *)g_hash_table_lookup(session_table, &pinfo->num);
if (!session) {
session = (guint32 *)g_hash_table_lookup(session_table, &gcrp->req_frame);
if (session != NULL) {
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(guint8 message, guint8 field, int *position)
{
guint i = 0;
_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) {
(*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)
{
guint8 cause;
cause = tvb_get_guint8(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 gchar *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_rai_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_)
{
guint32 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_)
{
guint32 ptmsi;
ptmsi = tvb_get_ntohl(tvb, offset + 1);
proto_tree_add_uint(tree, hf_gtp_ptmsi, tvb, offset, 5, ptmsi);
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 gchar * qos_str, guint8 adjust)
{
guint8 spare1, delay, reliability, peak, spare2, precedence, spare3, mean;
proto_tree *ext_tree_qos;
spare1 = tvb_get_guint8(tvb, offset) & GTP_EXT_QOS_SPARE1_MASK;
delay = tvb_get_guint8(tvb, offset) & GTP_EXT_QOS_DELAY_MASK;
reliability = tvb_get_guint8(tvb, offset) & GTP_EXT_QOS_RELIABILITY_MASK;
peak = tvb_get_guint8(tvb, offset + 1) & GTP_EXT_QOS_PEAK_MASK;
spare2 = tvb_get_guint8(tvb, offset + 1) & GTP_EXT_QOS_SPARE2_MASK;
precedence = tvb_get_guint8(tvb, offset + 1) & GTP_EXT_QOS_PRECEDENCE_MASK;
spare3 = tvb_get_guint8(tvb, offset + 2) & GTP_EXT_QOS_SPARE3_MASK;
mean = tvb_get_guint8(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_)
{
guint8 reorder;
reorder = tvb_get_guint8(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_)
{
guint8 map_cause;
map_cause = tvb_get_guint8(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_)
{
guint32 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_)
{
guint8 ms_valid;
ms_valid = tvb_get_guint8(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_)
{
guint8 recovery;
recovery = tvb_get_guint8(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 gchar *
dissect_radius_selection_mode(proto_tree * tree, tvbuff_t * tvb, packet_info* pinfo _U_)
{
guint8 sel_mode;
/* Value in ASCII(UTF-8) */
sel_mode = tvb_get_guint8(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_add_item(tree, hf_gtp_sel_mode, tvb, offset, 2, 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)
{
guint16 ext_flow_label;
guint32 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(wmem_packet_scope(), guint32);
*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)
{
guint16 flow_sig;
guint32 teid_cp;
guint32 *teid;
switch (gtp_version) {
case 0:
flow_sig = tvb_get_ntohs(tvb, offset + 1);
proto_tree_add_uint(tree, hf_gtp_flow_sig, tvb, offset, 3, flow_sig);
return 3;
case 1:
teid_cp = tvb_get_ntohl(tvb, offset + 1);
/* 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(wmem_packet_scope(), guint32);
*teid = teid_cp;
wmem_list_prepend(args->teid_list, teid);
}
}
proto_tree_add_uint(tree, hf_gtp_teid_cp, tvb, offset, 5, teid_cp);
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_)
{
guint16 flow_ii;
guint32 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_)
{
guint8 field19;
field19 = tvb_get_guint8(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_)
{
guint8 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_guint8(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_)
{
guint8 ranap;
ranap = tvb_get_guint8(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_)
{
guint8 rp_sms;
rp_sms = tvb_get_guint8(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;
guint8 nsapi, rp, spare;
nsapi = tvb_get_guint8(tvb, offset + 1) & 0xF0;
spare = tvb_get_guint8(tvb, offset + 1) & 0x08;
rp = tvb_get_guint8(tvb, offset + 1) & 0x07;
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_uint(ext_tree_rp, hf_gtp_rp_nsapi, tvb, offset + 1, 1, nsapi);
proto_tree_add_uint(ext_tree_rp, hf_gtp_rp_spare, tvb, offset + 1, 1, spare);
proto_tree_add_uint(ext_tree_rp, hf_gtp_rp, tvb, offset + 1, 1, rp);
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;
guint8 nsapi, pkt_flow_id;
nsapi = tvb_get_guint8(tvb, offset + 1) & 0x0F;
pkt_flow_id = tvb_get_guint8(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_)
{
guint16 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_)
{
guint16 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_)
{
guint16 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_)
{
guint8 reason;
reason = tvb_get_guint8(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_)
{
guint16 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_)
{
guint8 tr_command;
tr_command = tvb_get_guint8(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_)
{
guint32 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_)
{
guint16 length;
guint8 pdp_typ, pdp_org;
proto_tree *ext_tree_user;
proto_item *te;
length = tvb_get_ntohs(tvb, offset + 1);
pdp_org = tvb_get_guint8(tvb, offset + 3) & 0x0F;
pdp_typ = tvb_get_guint8(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(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(tvb, offset + 5));
break;
case 0x8d:
if (length == 6) {
struct e_in6_addr ipv6;
memset(&ipv6, 0, sizeof(struct e_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(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(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(tvb, offset + 5),
tvb_ip6_to_str(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, guint16 count)
{
proto_tree *ext_tree_trip;
guint16 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, guint16 count)
{
proto_tree *ext_tree_quint;
proto_item *te_quint;
guint16 q_offset, i;
guint8 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_guint8(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_guint8(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_)
{
guint16 length, con_len;
guint8 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_guint8(tvb, offset + 4) >> 6) & 0x03;
count = (tvb_get_guint8(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_guint8(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 )
*/
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_guint8(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_guint8(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 guint8
hex2dec(guint8 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 guint8
wrapped_tvb_get_guint8(tvbuff_t * tvb, int offset, int type)
{
if (type == 2)
return (hex2dec(tvb_get_guint8(tvb, offset)) << 4 | hex2dec(tvb_get_guint8(tvb, offset + 1)));
else
return tvb_get_guint8(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!
*/
static int
decode_qos_umts(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, const gchar * qos_str, guint8 type)
{
guint length;
guint8 al_ret_priority;
guint8 delay, reliability, peak, precedence, mean, spare1, spare2, spare3;
guint8 traf_class, del_order, del_err_sdu;
guint8 max_sdu_size, max_ul, max_dl, max_ul_ext, max_dl_ext, max_ul_ext2 = 0, max_dl_ext2 = 0;
guint8 res_ber, sdu_err_ratio;
guint8 trans_delay, traf_handl_prio;
guint8 guar_ul, guar_dl, guar_ul_ext, guar_dl_ext, guar_ul_ext2 = 0, guar_dl_ext2 = 0;
guint8 src_stat_desc, sig_ind;
proto_tree *ext_tree_qos;
int mss, mu, md, gu, gd;
guint8 arp, qci;
guint32 apn_ambr;
guint64 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)
* */
guint8 utf8_type = 1;
/* Will keep the release indicator as indicated in the RADIUS message */
guint8 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
* <release specific QoS IE UTF-8 encoding>. Even if it sounds rather
* inconsistent and unuseful, I will check hyphen presence here and
* will signal its presence.
* */
guint8 hyphen;
/* Will keep the value that will be returned
* */
int retval = 0;
switch (type) {
case 1:
length = tvb_get_guint8(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_guint8(tvb, offset, 2);
proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_version, tvb, offset, 2, rel_ind);
/* Hyphen handling */
hyphen = tvb_get_guint8(tvb, offset + 2);
if (hyphen == ((guint8) '-')) {
/* 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;
/* Fake the length of the IE including the IE id and length octets
* we are actually using it to determine precense of Octet n as counted in
* TS 24.008
*/
length = 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)) {
/* Release 8 or higher P-GW QoS profile */
static const int * arp_flags[] = {
&hf_gtp_qos_arp_pci,
&hf_gtp_qos_arp_pl,
&hf_gtp_qos_arp_pvi,
NULL
};
offset++;
arp = wrapped_tvb_get_guint8(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_guint8(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 = ((guint64)wrapped_tvb_get_guint8(tvb, offset , 2) << 32) |
((guint64)wrapped_tvb_get_guint8(tvb, offset+2, 2) << 24) |
((guint64)wrapped_tvb_get_guint8(tvb, offset+4, 2) << 16) |
((guint64)wrapped_tvb_get_guint8(tvb, offset+6, 2) << 8) |
(guint64)wrapped_tvb_get_guint8(tvb, offset+8, 2);
proto_tree_add_uint64(ext_tree_qos, hf_gtp_qos_ul_mbr, tvb, offset, 10, br);
offset += 10;
br = ((guint64)wrapped_tvb_get_guint8(tvb, offset , 2) << 32) |
((guint64)wrapped_tvb_get_guint8(tvb, offset+2, 2) << 24) |
((guint64)wrapped_tvb_get_guint8(tvb, offset+4, 2) << 16) |
((guint64)wrapped_tvb_get_guint8(tvb, offset+6, 2) << 8) |
(guint64)wrapped_tvb_get_guint8(tvb, offset+8, 2);
proto_tree_add_uint64(ext_tree_qos, hf_gtp_qos_dl_mbr, tvb, offset, 10, br);
offset += 10;
br = ((guint64)wrapped_tvb_get_guint8(tvb, offset , 2) << 32) |
((guint64)wrapped_tvb_get_guint8(tvb, offset+2, 2) << 24) |
((guint64)wrapped_tvb_get_guint8(tvb, offset+4, 2) << 16) |
((guint64)wrapped_tvb_get_guint8(tvb, offset+6, 2) << 8) |
(guint64)wrapped_tvb_get_guint8(tvb, offset+8, 2);
proto_tree_add_uint64(ext_tree_qos, hf_gtp_qos_ul_gbr, tvb, offset, 10, br);
offset += 10;
br = ((guint64)wrapped_tvb_get_guint8(tvb, offset , 2) << 32) |
((guint64)wrapped_tvb_get_guint8(tvb, offset+2, 2) << 24) |
((guint64)wrapped_tvb_get_guint8(tvb, offset+4, 2) << 16) |
((guint64)wrapped_tvb_get_guint8(tvb, offset+6, 2) << 8) |
(guint64)wrapped_tvb_get_guint8(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_guint8(tvb, offset , 2) << 24) |
(wrapped_tvb_get_guint8(tvb, offset+2, 2) << 16) |
(wrapped_tvb_get_guint8(tvb, offset+4, 2) << 8) |
wrapped_tvb_get_guint8(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_guint8(tvb, offset , 2) << 24) |
(wrapped_tvb_get_guint8(tvb, offset+2, 2) << 16) |
(wrapped_tvb_get_guint8(tvb, offset+4, 2) << 8) |
wrapped_tvb_get_guint8(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_guint8
* */
al_ret_priority = tvb_get_guint8(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_guint8(tvb, offset + (1 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_SPARE1_MASK;
delay = wrapped_tvb_get_guint8(tvb, offset + (1 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_DELAY_MASK;
reliability = wrapped_tvb_get_guint8(tvb, offset + (1 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_RELIABILITY_MASK;
peak = wrapped_tvb_get_guint8(tvb, offset + (2 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_PEAK_MASK;
spare2 = wrapped_tvb_get_guint8(tvb, offset + (2 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_SPARE2_MASK;
precedence = wrapped_tvb_get_guint8(tvb, offset + (2 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_PRECEDENCE_MASK;
spare3 = wrapped_tvb_get_guint8(tvb, offset + (3 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_SPARE3_MASK;
mean = wrapped_tvb_get_guint8(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);
/* 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_guint8(tvb, offset + (4 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_TRAF_CLASS_MASK;
del_order = wrapped_tvb_get_guint8(tvb, offset + (4 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_DEL_ORDER_MASK;
del_err_sdu = wrapped_tvb_get_guint8(tvb, offset + (4 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_DEL_ERR_SDU_MASK;
max_sdu_size = wrapped_tvb_get_guint8(tvb, offset + (5 - 1) * utf8_type + 1, utf8_type);
max_ul = wrapped_tvb_get_guint8(tvb, offset + (6 - 1) * utf8_type + 1, utf8_type);
max_dl = wrapped_tvb_get_guint8(tvb, offset + (7 - 1) * utf8_type + 1, utf8_type);
res_ber = wrapped_tvb_get_guint8(tvb, offset + (8 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_RES_BER_MASK;
sdu_err_ratio = wrapped_tvb_get_guint8(tvb, offset + (8 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_SDU_ERR_RATIO_MASK;
trans_delay = wrapped_tvb_get_guint8(tvb, offset + (9 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_TRANS_DELAY_MASK;
traf_handl_prio = wrapped_tvb_get_guint8(tvb, offset + (9 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_TRAF_HANDL_PRIORITY_MASK;
guar_ul = wrapped_tvb_get_guint8(tvb, offset + (10 - 1) * utf8_type + 1, utf8_type);
/* Octet 13 */
guar_dl = wrapped_tvb_get_guint8(tvb, offset + (11 - 1) * utf8_type + 1, utf8_type);
src_stat_desc = 0;
sig_ind = 0;
max_dl_ext = 0;
guar_dl_ext = 0;
max_ul_ext = 0;
guar_ul_ext = 0;
if (length > 13 ||((type == 2) && (length == 13))) {
src_stat_desc = wrapped_tvb_get_guint8(tvb, offset + (12 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_SRC_STAT_DESC_MASK;
sig_ind = wrapped_tvb_get_guint8(tvb, offset + (12 - 1) * utf8_type + 1, utf8_type) & GTP_EXT_QOS_SIG_IND_MASK;
}
if (length > 14) {
max_dl_ext = wrapped_tvb_get_guint8(tvb, offset + (13 - 1) * utf8_type + 1, utf8_type);
guar_dl_ext = wrapped_tvb_get_guint8(tvb, offset + (14 - 1) * utf8_type + 1, utf8_type);
}
if (length > 16) {
max_ul_ext = wrapped_tvb_get_guint8(tvb, offset + (15 - 1) * utf8_type + 1, utf8_type);
guar_ul_ext = wrapped_tvb_get_guint8(tvb, offset + (16 - 1) * utf8_type + 1, utf8_type);
}
if (length > 18) {
max_dl_ext2 = wrapped_tvb_get_guint8(tvb, offset + (17 - 1) * utf8_type + 1, utf8_type);
guar_dl_ext2 = wrapped_tvb_get_guint8(tvb, offset + (18 - 1) * utf8_type + 1, utf8_type);
}
if (length > 20) {
max_ul_ext2 = wrapped_tvb_get_guint8(tvb, offset + (19 - 1) * utf8_type + 1, utf8_type);
guar_ul_ext2 = wrapped_tvb_get_guint8(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_src_stat_desc, tvb, offset + (12 - 1) * utf8_type + 1, utf8_type, src_stat_desc);
proto_tree_add_boolean(ext_tree_qos, hf_gtp_qos_sig_ind, tvb, offset + (12 - 1) * utf8_type + 1, utf8_type, sig_ind);
}
if(length > 14) {
/* Octet 15 */
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,
"Use the value indicated by the Guaranteed bit rate for downlink in octet 13");
if ((guar_dl_ext > 0) && (guar_dl_ext <= 0x4a)) {
gd = 8600 + guar_dl_ext * 100;
proto_tree_add_uint_format_value(ext_tree_qos, hf_gtp_qos_guar_dl, tvb, offset + (14 - 1) * utf8_type + 1, utf8_type, gd,
"%u kbps", gd);
}
if ((guar_dl_ext > 0x4a) && (max_dl_ext <= 0xba)) {
gd = 16 + (guar_dl_ext-0x4a);
proto_tree_add_uint_format_value(ext_tree_qos, hf_gtp_qos_guar_dl, tvb, offset + (14 - 1) * utf8_type + 1, utf8_type, gd,
"%u Mbps", gd);
}
if ((guar_dl_ext > 0xba) && (max_dl_ext <= 0xfa)) {
gd = 128 + (guar_dl_ext-0xba)*2;
proto_tree_add_uint_format_value(ext_tree_qos, hf_gtp_qos_guar_dl, tvb, offset + (14 - 1) * utf8_type + 1, utf8_type, gd,
"%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) && (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,
"Use the value indicated by the Guaranteed bit rate for uplink 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 (guar_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,
"Use the value indicated by the Maximum bit rate for downlink 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,
"Ext 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,
"Ext 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,
"Ext Maximum bit rate for downlink: %u Mbps", md);
}
/* Octet 20 Guaranteed bit rate for downlink (extended-2) */
if (max_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,
"Use the value indicated by the Maximum bit rate for downlink in octet 13 and octet 16.");
if ((max_dl_ext2 > 0) && (max_dl_ext2 <= 0x3d)) {
gd = 256 + max_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,
"Ext Guaranteed bit rate for downlink: %u Mbps", gd);
}
if ((max_dl_ext2 > 0x3d) && (max_dl_ext2 <= 0xa1)) {
gd = 500 + (max_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,
"Ext Guaranteed bit rate for downlink: %u Mbps", gd);
}
if ((max_dl_ext2 > 0xba) && (max_dl_ext2 <= 0xfa)) {
gd = 1500 + (max_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,
"Ext Guaranteed bit rate for uplink: %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 (guar_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,
"Use the value indicated by the Maximum bit rate for uplink in octet 9 and octet 15.");
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,
"Ext 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,
"Ext 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,
"Ext Maximum bit rate for uplink: %u Mbps", md);
}
/* Guaranteed bit rate for uplink (extended-2), octet 22 */
if (max_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,
"Use the value indicated by the Maximum bit rate for uplink in octet 13 and octet 16.");
if ((max_ul_ext2 > 0) && (max_ul_ext2 <= 0x3d)) {
gd = 256 + max_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,
"Ext Guaranteed bit rate for uplink: %u Mbps", gd);
}
if ((max_ul_ext2 > 0x3d) && (max_ul_ext2 <= 0xa1)) {
gd = 500 + (max_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,
"Ext Guaranteed bit rate for uplink: %u Mbps", gd);
}
if ((max_ul_ext2 > 0xba) && (max_ul_ext2 <= 0xfa)) {
gd = 1500 + (max_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,
"Ext 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 gchar *
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(wmem_packet_scope(), tvb, 0, tvb_reported_length(tvb), ENC_UTF_8|ENC_NA);
}
#define MAX_APN_LENGTH 100
static void
decode_apn(tvbuff_t * tvb, int offset, guint16 length, proto_tree * tree, proto_item *item)
{
guint8 str[MAX_APN_LENGTH+1];
guint curr_len;
/* init buffer and copy it */
memset(str, 0, MAX_APN_LENGTH+1);
tvb_memcpy(tvb, str, offset, length<MAX_APN_LENGTH?length:MAX_APN_LENGTH);
curr_len = 0;
while ((curr_len < length) && (curr_len < MAX_APN_LENGTH))
{
guint step = str[curr_len];
str[curr_len] = '.';
curr_len += step+1;
}
/* Highlight bytes including the first length byte */
proto_tree_add_string(tree, hf_gtp_apn, tvb, offset, length, str+1);
if(item){
proto_item_append_text(item, ": %s", str+1);
}
}
static void
decode_fqdn(tvbuff_t * tvb, int offset, guint16 length, proto_tree * tree, session_args_t * args _U_)
{
guint8 *fqdn = NULL;
int name_len, tmp;
if (length > 0) {
name_len = tvb_get_guint8(tvb, offset);
if (name_len < 0x20) {
fqdn = tvb_get_string_enc(wmem_packet_scope(), tvb, offset + 1, length - 1, ENC_ASCII);
for (;;) {
if (name_len >= length - 1)
break;
tmp = name_len;
name_len = name_len + fqdn[tmp] + 1;
fqdn[tmp] = '.';
}
} else
fqdn = tvb_get_string_enc(wmem_packet_scope(), tvb, offset, length, ENC_ASCII);
proto_tree_add_string(tree, hf_gtp_fqdn, tvb, offset, length, fqdn);
}
}
/*
* 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 _U_, proto_tree * tree, session_args_t * args _U_)
{
guint8 ggsn_addr_len, apn_len, trans_id, ea;
guint8 pdp_type_num, pdp_addr_len;
guint16 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_guint8(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_ulink_teid_cp, tvb, offset + 6, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(ext_tree_pdp, hf_gtp_ulink_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_guint8(tvb, offset + 1);
pdp_addr_len = tvb_get_guint8(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_guint8(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, tvb, offset + 1, 4, ENC_BIG_ENDIAN);
break;
case 16:
proto_tree_add_item(ext_tree_pdp, hf_gtp_ggsn_address_for_user_traffic, tvb, offset + 1, 16, ENC_BIG_ENDIAN);
break;
default:
break;
}
offset = offset + 1 + ggsn_addr_len;
if (gtp_version == 1) {
ggsn_addr_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(ext_tree_pdp, hf_gtp_ggsn_2_address_length, tvb, offset, 1, ENC_BIG_ENDIAN);
switch (ggsn_addr_len) {
case 4:
proto_tree_add_item(ext_tree_pdp, hf_gtp_ggsn_2_address_ipv4, tvb, offset + 1, 4, ENC_BIG_ENDIAN);
break;
case 16:
proto_tree_add_item(ext_tree_pdp, hf_gtp_ggsn_2_address_ipv6, tvb, offset + 1, 16, ENC_NA);
break;
default:
break;
}
offset = offset + 1 + ggsn_addr_len;
}
apn_len = tvb_get_guint8(tvb, offset);
proto_tree_add_item(ext_tree_pdp, hf_gtp_apn_length, tvb, offset, 1, ENC_BIG_ENDIAN);
decode_apn(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_guint8(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_guint8(tvb, offset);
pdp_addr_len = tvb_get_guint8(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 _U_, proto_tree * tree, session_args_t * args _U_)
{
guint16 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(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_)
{
guint16 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(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args)
{
guint8 addr_type, addr_len;
guint16 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(tree, tvb, offset, 3 + length, ett_gtp_gsn_addr, &te, "GSN address : ");
gsn_address = wmem_new0(wmem_packet_scope(), 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_gtp_gsn_ipv4, tvb, offset + 3, 4, ENC_BIG_ENDIAN);
proto_item_append_text(te, "%s", tvb_ip_to_str(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_guint8(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_guint8(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_gtp_gsn_ipv4, tvb, offset + 4, 4, ENC_BIG_ENDIAN);
proto_item_append_text(te, "%s", tvb_ip_to_str(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_gtp_gsn_ipv6, tvb, offset + 3, 16, ENC_NA);
proto_item_append_text(te, "%s", tvb_ip6_to_str(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_guint8(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_guint8(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(tvb, offset + 4));
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(&args->last_ip, gsn_address);
wmem_list_prepend(args->ip_list, gsn_address);
}
}
return 3 + length;
}
/* 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_)
{
guint16 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;
guint16 length;
guint8 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_guint8(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_guint8(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_)
{
guint16 length, port1, port2, tos;
guint8 tft_flags, tft_code, no_packet_filters, i, pf_eval, pf_len, pf_content_id, proto;
guint pf_offset;
guint32 ipsec_id, label;
proto_tree *ext_tree_tft, *ext_tree_tft_pf, *ext_tree_tft_flags;
proto_item *tee, *pf_item;
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");
tft_flags = tvb_get_guint8(tvb, offset + 3);
tft_code = (tft_flags >> 5) & 0x07;
no_packet_filters = tft_flags & 0x0F;
proto_tree_add_item(ext_tree_tft, hf_gtp_tft_length, tvb, offset + 1, 2, ENC_BIG_ENDIAN);
ext_tree_tft_flags = proto_tree_add_subtree(ext_tree_tft, tvb, offset + 3, 1, ett_gtp_tft_flags, NULL, "TFT flags");
proto_tree_add_uint(ext_tree_tft_flags, hf_gtp_tft_code, tvb, offset + 3, 1, tft_flags);
proto_tree_add_uint(ext_tree_tft_flags, hf_gtp_tft_spare, tvb, offset + 3, 1, tft_flags);
proto_tree_add_uint(ext_tree_tft_flags, hf_gtp_tft_number, tvb, offset + 3, 1, tft_flags);
offset = offset + 4;
for (i = 0; i < no_packet_filters; i++) {
tee = proto_tree_add_item(ext_tree_tft, hf_gtp_tft_packet_filter_id, tvb, offset, 1, ENC_BIG_ENDIAN);
ext_tree_tft_pf = proto_item_add_subtree(tee, ett_gtp_tft_pf);
offset++;
if (tft_code != 2) {
pf_eval = tvb_get_guint8(tvb, offset);
pf_len = tvb_get_guint8(tvb, offset + 1);
proto_tree_add_uint(ext_tree_tft_pf, hf_gtp_tft_eval, tvb, offset, 1, pf_eval);
proto_tree_add_item(ext_tree_tft_pf, hf_gtp_tft_content_length, tvb, offset + 1, 1, ENC_BIG_ENDIAN);
offset = offset + 2;
pf_offset = 0;
while (pf_offset < pf_len) {
pf_content_id = tvb_get_guint8(tvb, offset + pf_offset);
pf_item = proto_tree_add_item(ext_tree_tft_pf, hf_gtp_tft_content_id, tvb, offset + pf_offset, 1, ENC_BIG_ENDIAN);
switch (pf_content_id) {
/* address IPv4 and mask = 8 bytes */
case 0x10:
proto_item_set_text(pf_item, "ID 0x10: IPv4/mask: %s/%s", tvb_ip_to_str(tvb, offset + pf_offset + 1),
tvb_ip_to_str(tvb, offset + pf_offset + 5));
proto_item_set_len(pf_item, 9);
pf_offset += 9;
break;
/* address IPv6 and mask = 32 bytes */
case 0x20:
proto_item_set_text(pf_item, "ID 0x20: IPv6/mask: %s/%s",
tvb_ip6_to_str(tvb, offset + pf_offset + 1), tvb_ip6_to_str(tvb, offset + pf_offset + 17));
proto_item_set_len(pf_item, 33);
pf_offset += 33;
break;
/* protocol identifier/next header type = 1 byte */
case 0x30:
proto = tvb_get_guint8(tvb, offset + pf_offset + 1);
proto_item_set_text(pf_item, "ID 0x30: IPv4 protocol identifier/IPv6 next header: %u (%x)",
proto, proto);
proto_item_set_len(pf_item, 2);
pf_offset += 2;
break;
/* single destination port type = 2 bytes */
case 0x40:
port1 = tvb_get_ntohs(tvb, offset + pf_offset + 1);
proto_item_set_text(pf_item, "ID 0x40: destination port: %u", port1);
proto_item_set_len(pf_item, 3);
pf_offset += 3;
break;
/* destination port range type = 4 bytes */
case 0x41:
port1 = tvb_get_ntohs(tvb, offset + pf_offset + 1);
port2 = tvb_get_ntohs(tvb, offset + pf_offset + 3);
proto_item_set_text(pf_item, "ID 0x41: destination port range: %u - %u", port1, port2);
proto_item_set_len(pf_item, 5);
pf_offset += 5;
break;
/* single source port type = 2 bytes */
case 0x50:
port1 = tvb_get_ntohs(tvb, offset + pf_offset + 1);
proto_item_set_text(pf_item, "ID 0x50: source port: %u", port1);
proto_item_set_len(pf_item, 3);
pf_offset += 3;
break;
/* source port range type = 4 bytes */
case 0x51:
port1 = tvb_get_ntohs(tvb, offset + pf_offset + 1);
port2 = tvb_get_ntohs(tvb, offset + pf_offset + 3);
proto_item_set_text(pf_item, "ID 0x51: source port range: %u - %u", port1, port2);
proto_item_set_len(pf_item, 5);
pf_offset += 5;
break;
/* security parameter index type = 4 bytes */
case 0x60:
ipsec_id = tvb_get_ntohl(tvb, offset + pf_offset + 1);
proto_item_set_text(pf_item, "ID 0x60: security parameter index: %x", ipsec_id);
proto_item_set_len(pf_item, 5);
pf_offset += 5;
break;
/* type of service/traffic class type = 2 bytes */
case 0x70:
tos = tvb_get_ntohs(tvb, offset + pf_offset + 1);
proto_item_set_text(pf_item, "ID 0x70: Type of Service/Traffic Class: %u (%x)", tos, tos);
proto_item_set_len(pf_item, 3);
pf_offset += 3;
break;
/* flow label type = 3 bytes */
case 0x80:
label = tvb_get_ntoh24(tvb, offset + pf_offset + 1) & 0x0FFFFF;
proto_item_set_text(pf_item, "ID 0x80: Flow Label: %u (%x)", label, label);
proto_item_set_len(pf_item, 4);
pf_offset += 4;
break;
default:
proto_item_set_text(pf_item, "Unknown value: %x ", pf_content_id);
pf_offset++; /* to avoid infinite loop */
break;
}
}
offset = offset + pf_offset;
}
}
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 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_)
{
guint16 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 */
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_rai_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_)
{
guint16 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_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);
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_)
{
guint32 teid;
guint16 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;
guint8 length, hdr;
proto_tree *ext_tree_hdr_list;
length = tvb_get_guint8(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_guint8(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_)
{
guint16 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_)
{
guint16 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_)
{
guint16 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(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(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_)
{
guint16 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_)
{
guint16 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_)
{
guint16 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;
/* 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 7.7.47 SGSN Number
*/
static int
decode_gtp_ssgn_no(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_)
{
guint16 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_SSGN_NO], NULL,
"%s : ", val_to_str_ext_const(GTP_EXT_SSGN_NO, >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: 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_)
{
guint16 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_)
{
guint16 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_)
{
guint16 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_guint8(tvb,offset), gtp_ext_rat_type_vals, "Unknown"));
return 3 + length;
}
/* GPRS: ?
* UMTS: 29.060 v6.11.0, chapter 7.7.51
* User Location Information
* Type = 152 (Decimal)
*/
static const
gchar *dissect_radius_user_loc(proto_tree * tree, tvbuff_t * tvb, packet_info* pinfo)
{
int offset = 0;
guint8 geo_loc_type;
guint16 length = tvb_reported_length(tvb);
proto_item* ti;
/* Geographic Location Type */
ti = proto_tree_add_item(tree, hf_gtp_ext_geo_loc_type, tvb, offset, 1, ENC_BIG_ENDIAN);
geo_loc_type = tvb_get_guint8(tvb, offset);
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].
*/
/* Use gsm_a's function to dissect Geographic Location by faking disc ( last 0) */
be_cell_id_aux(tvb, tree, pinfo, offset, length - 1, NULL, 0, 0);
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].
*/
/* Use gsm_a's function to dissect Geographic Location by faking disc ( last 4) */
be_cell_id_aux(tvb, tree, pinfo, offset, length - 1, NULL, 0, 4);
offset = offset + 5;
proto_tree_add_item(tree, hf_gtp_ext_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].
*/
dissect_e212_mcc_mnc(tvb, pinfo, tree, offset, E212_RAI, TRUE);
offset+=3;
proto_tree_add_item(tree, hf_gtp_rai_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;
case 128:
/* Geographic Location field included and it holds the Tracking
* Area Identity (TAI) of where the user currently is registered.
* TAI is defined in sub-clause 8.21.4 of 3GPP TS 29.274.
*/
dissect_e212_mcc_mnc(tvb, pinfo, tree, offset, E212_NONE, TRUE);
offset+=3;
proto_tree_add_item(tree, hf_gtp_tac, tvb, offset, 2, ENC_BIG_ENDIAN);
break;
case 129:
/* Geographic Location field included and it holds the E-UTRAN Cell
* Global Identifier (ECGI) of where the user currently is registered.
* ECGI is defined in sub-clause 8.21.5 of 3GPP TS 29.274.
*/
dissect_e212_mcc_mnc(tvb, pinfo, tree, offset, E212_NONE, TRUE);
offset+=3;
proto_tree_add_item(tree, hf_gtp_eci, tvb, offset, 4, ENC_BIG_ENDIAN);
break;
case 130:
/* Geographic Location field included and it holds the Tracking
* Area Identity (TAI) and E-UTRAN CellGlobal Identifier (ECGI)
* of where the user currently is registered.
* TAI is defined in sub-clause 8.21.4 of 3GPP TS 29.274.
* ECGI is defined in sub-clause 8.21.5 of 3GPP TS 29.274.
*/
dissect_e212_mcc_mnc(tvb, pinfo, tree, offset, E212_NONE, TRUE);
offset+=3;
proto_tree_add_item(tree, hf_gtp_tac, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
dissect_e212_mcc_mnc(tvb, pinfo, tree, offset, E212_NONE, TRUE);
offset+=3;
proto_tree_add_item(tree, hf_gtp_eci, tvb, offset, 4, ENC_BIG_ENDIAN);
break;
default:
expert_add_info(pinfo, ti, &ei_gtp_ext_geo_loc_type);
break;
}
return tvb_bytes_to_str(wmem_packet_scope(), tvb, 0, length);
}
/*
* 7.7.51 User Location Information
*/
static int
decode_gtp_usr_loc_inf(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, session_args_t * args _U_)
{
guint16 length;
proto_tree *ext_tree, *rai_tree;
guint8 geo_loc_type;
proto_item* ti;
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;
/* TODO add decoding of data */
/* Geographic Location Type */
ti = proto_tree_add_item(ext_tree, hf_gtp_ext_geo_loc_type, tvb, offset, 1, ENC_BIG_ENDIAN);
geo_loc_type = tvb_get_guint8(tvb, offset);
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].
*/
/* Use gsm_a's function to dissect Geographic Location by faking disc ( last 0) */
be_cell_id_aux(tvb, ext_tree, pinfo, offset, length - 1, NULL, 0, 0);
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].
*/
/* Use gsm_a's function to dissect Geographic Location by faking disc ( last 4) */
be_cell_id_aux(tvb, ext_tree, pinfo, offset, length - 1, NULL, 0, 4);
offset = offset + 5;
proto_tree_add_item(ext_tree, hf_gtp_ext_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].
*/
rai_tree = proto_tree_add_subtree(ext_tree, tvb, offset + 1, 7, ett_gtp_uli_rai, NULL, "Routeing Area Identity (RAI)");
dissect_e212_mcc_mnc(tvb, pinfo, rai_tree, offset, E212_RAI, TRUE);
offset+=3;
proto_tree_add_item(rai_tree, hf_gtp_rai_lac, tvb, offset, 2, ENC_BIG_ENDIAN);
offset+=2;
proto_tree_add_item(rai_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;
}
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_)
{
guint16 length;
proto_tree *ext_tree;
proto_item *te;
guint8 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_guint8(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 _U_, proto_tree * tree, session_args_t * args _U_)
{
guint16 length;
proto_tree *ext_imeisv;
proto_item *te;
tvbuff_t *next_tvb;
const 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);
digit_str = tvb_bcd_dig_to_wmem_packet_str(next_tvb, 0, -1, NULL, FALSE);
proto_tree_add_string(ext_imeisv, hf_gtp_ext_imeisv, next_tvb, 0, -1, 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_)
{
guint16 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;
/* 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 7.7.55
* 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_)
{
guint16 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_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;
/* 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, 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_)
{
guint16 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 _U_, proto_tree * tree, session_args_t * args _U_)
{
guint16 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_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.
*/
proto_tree_add_item(ext_tree, hf_gtp_rim_routing_addr, tvb, offset, length, ENC_NA);
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_)
{
guint16 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_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;
/* 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, 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_)
{
guint16 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;
guint8 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_guint8(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;
guint16 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_)
{
guint16 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_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;
/* 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 7.7.62
* Additional Trace Info
*/
static int
decode_gtp_add_trs_inf(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_)
{
guint16 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_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;
/* 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 7.7.63
* 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_)
{
guint16 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;
/* 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 7.7.64
* 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_)
{
guint16 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_)
{
guint16 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_)
{
guint16 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_)
{
guint16 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_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;
/* 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 7.7.68
* 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_)
{
guint16 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_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;
/* 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 7.7.69
* 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_)
{
guint16 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;
guint8 time_2_dta_tr;
time_2_dta_tr = tvb_get_guint8(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_)
{
guint16 length;
proto_tree *ext_tree;
guint8 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_guint8(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_)
{
guint16 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_)
{
guint16 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_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;
/* TODO add decoding of data */
proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length);
/*
* 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 int
decode_gtp_cell_id(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_)
{
guint16 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_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;
/* TODO add decoding of data */
proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length);
/*
* 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
*/
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_)
{
guint16 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;
/* 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 7.7.75
* 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_)
{
guint16 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, 2, 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_)
{
guint16 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 _U_, proto_tree * tree, session_args_t * args _U_)
{
guint16 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_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(ext_tree, hf_gtp_bssgp_ra_discriminator, tvb, offset, 1, ENC_BIG_ENDIAN);
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_)
{
guint16 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_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;
/* TODO add decoding of data */
proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length);
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_)
{
guint16 length;
proto_tree *ext_tree;
tvbuff_t *next_tvb;
guint8 sapi;
guint8 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_guint8(tvb, offset) & 0x0F;
proto_tree_add_uint(ext_tree, hf_gtp_sapi, tvb, offset, 1, sapi);
offset++;
xid_par_len = tvb_get_guint8(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_)
{
guint16 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;
/* TODO add decoding of data */
proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length);
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_)
{
guint16 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_)
{
guint16 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;
/* TODO add decoding of data */
proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length);
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_)
{
guint16 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_)
{
guint16 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_)
{
guint16 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_)
{
guint16 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_)
{
guint16 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_)
{
guint16 length, rfsp;
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;
rfsp = tvb_get_ntohs(tvb, offset);
proto_tree_add_uint(ext_tree, hf_gtp_rfsp_index, tvb, offset, length, rfsp+1);
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_)
{
guint16 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_)
{
guint16 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_pvi, 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_pci, 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_)
{
guint16 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_pvi, 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_pci, 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_)
{
guint16 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_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length);
return 3 + length;
}
/*
* 7.7.94 User CSG Information (UCI)
*/
static int
decode_gtp_uci(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_)
{
guint16 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;
proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length);
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_)
{
guint16 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_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_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length);
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_)
{
guint16 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_)
{
guint16 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;
proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length);
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_)
{
guint16 length;
proto_tree *ext_tree;
proto_item *te;
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 */
te = proto_tree_add_item(ext_tree, hf_gtp_ext_apn_ambr_ul, tvb, offset, 4, ENC_BIG_ENDIAN);
proto_item_append_text(te, " kbps");
offset+=4;
/* 8 to 11 APN-AMBR for Downlink */
te = proto_tree_add_item(ext_tree, hf_gtp_ext_apn_ambr_dl, tvb, offset, 4, ENC_BIG_ENDIAN);
proto_item_append_text(te, " kbps");
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_)
{
guint16 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_)
{
guint16 length;
proto_tree *ext_tree;
proto_item *te;
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;
/* 4 to 7 Subscribed UE-AMBR for Uplink */
te = proto_tree_add_item(ext_tree, hf_gtp_ext_sub_ue_ambr_ul, tvb, offset, 4, ENC_BIG_ENDIAN);
proto_item_append_text(te, " kbps");
offset+=4;
/* 8 to 11 Subscribed UE-AMBR for Downlink */
te = proto_tree_add_item(ext_tree, hf_gtp_ext_sub_ue_ambr_dl, tvb, offset, 4, ENC_BIG_ENDIAN);
proto_item_append_text(te, " kbps");
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(offset >= length)
return 3 + length;
/* m to (m+3) Authorized UE-AMBR for Uplink */
te = proto_tree_add_item(ext_tree, hf_gtp_ext_auth_ue_ambr_ul, tvb, offset, 4, ENC_BIG_ENDIAN);
proto_item_append_text(te, " kbps");
offset+=4;
/* (m+4) to (n+3) Authorized UE-AMBR for Downlink */
te = proto_tree_add_item(ext_tree, hf_gtp_ext_auth_ue_ambr_dl, tvb, offset, 4, ENC_BIG_ENDIAN);
proto_item_append_text(te, " kbps");
proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length);
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_)
{
guint16 length;
proto_tree *ext_tree;
proto_item *te;
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;
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 */
te = proto_tree_add_item(ext_tree, hf_gtp_ext_auth_apn_ambr_ul, tvb, offset, 4, ENC_BIG_ENDIAN);
proto_item_append_text(te, " kbps");
offset+=4;
/* 9 to12 Authorized APN-AMBR for Downlink */
te = proto_tree_add_item(ext_tree, hf_gtp_ext_auth_apn_ambr_dl, tvb, offset, 4, ENC_BIG_ENDIAN);
proto_item_append_text(te, " kbps");
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_)
{
guint16 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 int
decode_gtp_sig_pri_ind(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_)
{
guint16 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_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length);
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_)
{
guint16 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_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length);
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_)
{
guint16 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_)
{
guint16 length;
proto_tree *ext_tree;
guint32 max_ul;
guint32 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 _U_, proto_tree * tree, session_args_t * args _U_)
{
guint16 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_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;
proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length);
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_)
{
guint16 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;
proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length);
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_)
{
guint16 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_)
{
guint16 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;
proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length);
return 3 + length;
}
/*
* 7.7.111 Extended RANAP Cause
*/
static int
decode_gtp_ext_ranap_cause(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, session_args_t * args _U_)
{
guint16 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_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;
proto_tree_add_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length);
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_)
{
guint16 length;
proto_tree *ext_tree;
guint32 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 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_)
{
guint16 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_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length);
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_)
{
guint16 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_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length);
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_)
{
guint16 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_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length);
return 3 + length;
}
/*
* 7.7.116 CN Operator Selection Entity
*/
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_)
{
guint16 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_expert(ext_tree, pinfo, &ei_gtp_undecoded, tvb, offset, length);
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_)
{
guint16 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_)
{
guint16 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_)
{
guint16 length, cdr_length;
guint8 no, format, app_id, rel_id, ver_id, i;
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_guint8(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_guint8(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
*/
app_id = tvb_get_guint8(tvb,offset);
rel_id = app_id & 0x0f;
app_id = app_id >>4;
ver_id =tvb_get_guint8(tvb,offset+1);
/* 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, 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++;
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 if(rel_id >6){
dissect_gprscdr_GPRSRecord_PDU(next_tvb, pinfo, cdr_dr_tree, NULL);
}
} else {
/* Do we have a dissector regestering 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_)
{
guint16 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_)
{
guint16 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(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(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_)
{
guint16 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)", val_to_str_ext_const(ext_id, &sminmpec_values_ext, "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_extention_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, guint32 last_teid, address last_ip)
{
guint32 *session, frame_teid_cp;
proto_item *it;
/* GTP session */
if (tree) {
session = (guint32*)g_hash_table_lookup(session_table, &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 = (guint32*)g_hash_table_lookup(session_table, &pinfo->num);
if (!session) {
/* If the message is not a CPDPCRES, CPDPCREQ, UPDPREQ, UPDPRES then we remove its information from teid and ip lists */
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 = (guint32*)g_hash_table_lookup(session_table, &frame_teid_cp);
if (session != NULL) {
/* 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 */
const address * dst_address;
address gsn_address;
dst_address = &pinfo->dst;
copy_address(&gsn_address, dst_address);
if ((get_frame(gsn_address, (guint32)gtp_hdr->teid, &frame_teid_cp) == 1)) {
/* Then we have to set its session ID */
session = (guint32*)g_hash_table_lookup(session_table, &frame_teid_cp);
if (session != NULL) {
/* 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_gtp_common(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree)
{
guint8 octet;
gtp_hdr_t *gtp_hdr = NULL;
proto_tree *gtp_tree = NULL, *ext_tree;
proto_item *ti = NULL, *tf, *ext_hdr_len_item, *message_item;
int i, offset = 0, checked_field, mandatory;
gboolean gtp_prime, has_SN;
int seq_no = 0;
int flow_label = 0;
guint8 pdu_no, next_hdr = 0;
guint8 ext_hdr_val;
guint ext_hdr_length;
guint16 ext_hdr_pdcpsn;
gchar *tid_str;
tvbuff_t *next_tvb;
guint8 sub_proto;
guint8 acfield_len = 0;
guint8 control_field;
gtp_msg_hash_t *gcrp = NULL;
conversation_t *conversation;
gtp_conv_info_t *gtp_info;
session_args_t *args = 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_guint8(tvb, 0);
if (((octet >> 5) & 0x07) > 2) {
/* Version > 2; reject the packet */
return 0;
}
octet = tvb_get_guint8(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(wmem_packet_scope(), 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(wmem_packet_scope(), 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(wmem_packet_scope());
args->ip_list = wmem_list_new(wmem_packet_scope());
}
/*
* 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 = (gtp_conv_info_t *)wmem_alloc(wmem_file_scope(), sizeof(gtp_conv_info_t));
/*Request/response matching tables*/
gtp_info->matched = g_hash_table_new(gtp_sn_hash, gtp_sn_equal_matched);
gtp_info->unmatched = g_hash_table_new(gtp_sn_hash, gtp_sn_equal_unmatched);
conversation_add_proto_data(conversation, proto_gtp, gtp_info);
gtp_info->next = gtp_info_items;
gtp_info_items = gtp_info;
}
gtp_hdr->flags = tvb_get_guint8(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) {
const int * gtp_prime_flags[] = {
&hf_gtp_prime_flags_ver,
&hf_gtp_flags_pt,
&hf_gtp_flags_spare1,
NULL
};
const int * 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 {
const int * 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
};
const int * 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_guint8(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:
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:
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_guint8(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_guint8(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) {
next_hdr = tvb_get_guint8(tvb, offset);
proto_tree_add_uint(gtp_tree, hf_gtp_ext_hdr_next, tvb, offset, 1, next_hdr);
offset++;
while (next_hdr != 0) {
ext_hdr_length = tvb_get_guint8(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++;
switch (next_hdr) {
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 between two eNBs at the X2 interface
* in E-UTRAN, bits 5-8 of octet 2 are spare.
* The meaning of the spare bits 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 & 0x700) {
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_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_SUSPEND_REQ:
/* Suspend Request */
break;
case GTP_EXT_HDR_SUSPEND_RESP:
/* Suspend Response */
break;
default:
break;
}
offset += ext_hdr_length*4 - 2;
next_hdr = tvb_get_guint8(tvb, offset);
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) {
ext_hdr_val = tvb_get_guint8(tvb, offset);
if (g_gtp_etsi_order) {
checked_field = check_field_presence(gtp_hdr->message, ext_hdr_val, &mandatory);
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;
}
}
i = -1;
while (gtpopt[++i].optcode)
if (gtpopt[i].optcode == ext_hdr_val)
break;
offset = offset + (*gtpopt[i].decode) (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) {
guint8 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) && dissect_tpdu_as == GTP_TPDU_AS_TPDU) {
if(tvb_reported_length_remaining(tvb, offset) > 0){
proto_tree_add_item(gtp_tree, hf_gtp_tpdu_data, tvb, offset, -1, ENC_NA);
sub_proto = tvb_get_guint8(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 */
next_tvb = tvb_new_subset_remaining(tvb, offset);
call_dissector(ip_handle, next_tvb, pinfo, tree);
} else if ((sub_proto & 0xf0) == 0x60) {
/* this is most likely an IPv6 packet */
next_tvb = tvb_new_subset_remaining(tvb, offset);
call_dissector(ipv6_handle, next_tvb, pinfo, tree);
} else {
/* this seems to be a PPP packet */
if (sub_proto == 0xff) {
/* this might be an address field, even it shouldn't be here */
control_field = tvb_get_guint8(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);
}
}
col_prepend_fstr(pinfo->cinfo, COL_PROTOCOL, "GTP <");
col_append_str(pinfo->cinfo, COL_PROTOCOL, ">");
}
else if ((gtp_hdr->message == GTP_MSG_TPDU) && dissect_tpdu_as == GTP_TPDU_AS_SYNC) {
next_tvb = tvb_new_subset_remaining(tvb, offset + acfield_len);
call_dissector(sync_handle, next_tvb, pinfo, tree);
col_prepend_fstr(pinfo->cinfo, COL_PROTOCOL, "GTP <");
col_append_str(pinfo->cinfo, COL_PROTOCOL, ">");
}
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_)
{
guint8 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_guint8(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;
session_table = g_hash_table_new(g_int_hash, g_int_equal);
frame_tree = wmem_tree_new(wmem_file_scope());
}
static void
gtp_cleanup(void)
{
gtp_conv_info_t *gtp_info;
/* Free up state attached to the gtp_info structures */
for (gtp_info = gtp_info_items; gtp_info != NULL; ) {
gtp_conv_info_t *next;
g_hash_table_destroy(gtp_info->matched);
gtp_info->matched=NULL;
g_hash_table_destroy(gtp_info->unmatched);
gtp_info->unmatched=NULL;
next = gtp_info->next;
gtp_info = next;
}
/* Free up state attached to the gtp session structures */
gtp_info_items = NULL;
if (session_table != NULL) {
g_hash_table_destroy(session_table);
}
session_table = NULL;
}
void
proto_register_gtp(void)
{
module_t *gtp_module;
expert_module_t* expert_gtp;
guint i;
guint 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, NULL, 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, NULL, 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, 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,
"Flow label data", HFILL}
},
{&hf_gtp_ext_id,
{ "Extension identifier", "gtp.ext_id",
FT_UINT16, BASE_DEC|BASE_EXT_STRING, &sminmpec_values_ext, 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_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_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}
},
{&hf_gtp_qos_max_sdu_size,
{ "Maximum SDU size", "gtp.qos_max_sdu_size",
FT_UINT8, 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_UINT8, BASE_DEC, VALS(qos_max_ul), 0,
NULL, HFILL}
},
{&hf_gtp_qos_max_dl,
{ "Maximum bit rate for downlink", "gtp.qos_max_dl",
FT_UINT8, 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_UINT8, BASE_DEC, VALS(qos_guar_ul), 0,
NULL, HFILL}
},
{&hf_gtp_qos_guar_dl,
{ "Guaranteed bit rate for downlink", "gtp.qos_guar_dl",
FT_UINT8, BASE_DEC, VALS(qos_guar_dl), 0,
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_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_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), 0x40,
NULL, HFILL}
},
{ &hf_gtp_qos_arp_pl,
{"Priority Level", "gtp.qos_arp_pl",
FT_UINT16, BASE_DEC, NULL, 0x3c,
NULL, HFILL}
},
{ &hf_gtp_qos_arp_pvi,
{"Pre-emption Vulnerability (PVI)", "gtp.qos_arp_pvi",
FT_BOOLEAN, 16, TFS(&tfs_disabled_enabled), 0x01,
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_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_rai_rac,
{ "RAC", "gtp.rac",
FT_UINT8, BASE_DEC, NULL, 0,
"Routing Area Code", HFILL}
},
{&hf_gtp_rai_lac,
{ "LAC", "gtp.lac",
FT_UINT16, BASE_DEC, NULL, 0,
"Location Area Code", HFILL}
},
{ &hf_gtp_tac,
{"TAC", "gtp.tac",
FT_UINT16, BASE_DEC, NULL, 0,
"Tracking Area Code", HFILL}
},
{ &hf_gtp_eci,
{"ECI", "gtp.eci",
FT_UINT32, BASE_DEC, NULL, 0x0FFFFFFF,
"E-UTRAN Cell Identifier", HFILL}
},
{&hf_gtp_ranap_cause,
{ "RANAP cause", "gtp.ranap_cause",
FT_UINT8, 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, 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, NULL, 0,
"Tunnel Endpoint Identifier", HFILL}
},
{&hf_gtp_teid_cp,
{ "TEID Control Plane", "gtp.teid_cp",
FT_UINT32, BASE_HEX, NULL, 0,
"Tunnel Endpoint Identifier Control Plane", HFILL}
},
{&hf_gtp_ulink_teid_cp,
{ "Uplink TEID Control Plane", "gtp.ulink_teid_cp",
FT_UINT32, BASE_HEX, NULL, 0,
"Uplink Tunnel Endpoint Identifier Control Plane", HFILL}
},
{&hf_gtp_teid_data,
{ "TEID Data I", "gtp.teid_data",
FT_UINT32, BASE_HEX, NULL, 0,
"Tunnel Endpoint Identifier Data I", HFILL}
},
{&hf_gtp_ulink_teid_data,
{ "Uplink TEID Data I", "gtp.ulink_teid_data",
FT_UINT32, BASE_HEX, NULL, 0,
"UplinkTunnel Endpoint Identifier Data I", HFILL}
},
{&hf_gtp_teid_ii,
{ "TEID Data II", "gtp.teid_ii",
FT_UINT32, BASE_HEX, NULL, 0,
"Tunnel Endpoint Identifier Data II", HFILL}
},
{&hf_gtp_tft_code,
{ "TFT operation code", "gtp.tft_code",
FT_UINT8, BASE_DEC, VALS(tft_code_type), GTPv1_TFT_CODE_MASK,
NULL, HFILL}
},
{&hf_gtp_tft_spare,
{ "TFT spare bit", "gtp.tft_spare",
FT_UINT8, BASE_DEC, NULL, GTPv1_TFT_SPARE_MASK,
NULL, HFILL}
},
{&hf_gtp_tft_number,
{ "Number of packet filters", "gtp.tft_number",
FT_UINT8, BASE_DEC, NULL, GTPv1_TFT_NUMBER_MASK,
NULL, HFILL}
},
{&hf_gtp_tft_eval,
{ "Evaluation precedence", "gtp.tft_eval",
FT_UINT8, BASE_DEC, NULL, 0,
NULL, HFILL}
},
{&hf_gtp_tft_content_id,
{ "Content ID", "gtp.tft_content_id",
FT_UINT8, BASE_DEC, NULL, 0,
NULL, 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_geo_loc_type,
{ "Geographic Location Type", "gtp.ext_geo_loc_type",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_gtp_ext_sac,
{ "SAC", "gtp.ext_sac",
FT_UINT16, BASE_HEX_DEC, NULL, 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,
"SAPI", HFILL}
},
{&hf_gtp_xid_par_len,
{ "PS Handover XID parameter length", "gtp.ps_handover_xid_par_len",
FT_UINT8, BASE_DEC, NULL, 0xFF,
"XID parameter length", 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_earp_pl,
{ "PL Priority Level", "gtp.EARP_priority_level",
FT_UINT8, BASE_DEC, NULL, 0x3C,
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_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_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_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_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_time_2_dta_tr,
{ "Time to MBMS Data Transfer", "gtp.time_2_dta_tr",
FT_UINT8, BASE_DEC, NULL, 0x0,
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, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtp_ext_apn_ambr_dl,
{ "APN-AMBR for Downlink", "gtp.apn_ambr_dl",
FT_INT32, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtp_ext_sub_ue_ambr_ul,
{ "Subscribed UE-AMBR for Uplink", "gtp.sub_ue_ambr_ul",
FT_INT32, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtp_ext_sub_ue_ambr_dl,
{ "Subscribed UE-AMBR for Downlink", "gtp.sub_ue_ambr_dl",
FT_INT32, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtp_ext_auth_ue_ambr_ul,
{ "Authorized UE-AMBR for Uplink", "gtp.auth_ue_ambr_ul",
FT_INT32, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtp_ext_auth_ue_ambr_dl,
{ "Authorized UE-AMBR for Downlink", "gtp.auth_ue_ambr_dl",
FT_INT32, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtp_ext_auth_apn_ambr_ul,
{ "Authorized APN-AMBR for Uplink", "gtp.auth_apn_ambr_ul",
FT_INT32, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{ &hf_gtp_ext_auth_apn_ambr_dl,
{ "Authorized APN-AMBR for Downlink", "gtp.auth_apn_ambr_dl",
FT_INT32, BASE_DEC, NULL, 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_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_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_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_gtp_receive_n_pdu_number, { "Receive N-PDU number", "gtp.receive_n_pdu_number", FT_UINT8, 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_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_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, { "GGSN Address for control plane", "gtp.ggsn_address_for_control_plane", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtp_ggsn_address_for_user_traffic, { "GGSN Address for User Traffic", "gtp.ggsn_address_for_user_traffic", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtp_ggsn_2_address_length, { "GGSN 2 address length", "gtp.ggsn_2_address_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_gtp_ggsn_2_address_ipv4, { "GGSN 2 address", "gtp.ggsn_2_address.ipv4", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_gtp_ggsn_2_address_ipv6, { "GGSN 2 address", "gtp.ggsn_2_address.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_tft_packet_filter_id, { "Packet filter id", "gtp.tft_packet_filter_id", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_gtp_tft_content_length, { "Content length", "gtp.tft_content_length", FT_UINT8, 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 }
},
};
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, bits 5-8 of octet 2 are 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_extention_header, { "gtp.unknown_extention_header", PI_PROTOCOL, PI_WARN, "Unknown extension header", EXPFILL }},
};
/* Setup protocol subtree array */
#define GTP_NUM_INDIVIDUAL_ELEMS 29
static gint *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_uli_rai;
ett_gtp_array[7] = &ett_gtp_flow_ii;
ett_gtp_array[8] = &ett_gtp_ext_hdr;
ett_gtp_array[9] = &ett_gtp_rp;
ett_gtp_array[10] = &ett_gtp_pkt_flow_id;
ett_gtp_array[11] = &ett_gtp_data_resp;
ett_gtp_array[12] = &ett_gtp_cdr_ver;
ett_gtp_array[13] = &ett_gtp_tmgi;
ett_gtp_array[14] = &ett_gtp_trip;
ett_gtp_array[15] = &ett_gtp_quint;
ett_gtp_array[16] = &ett_gtp_drx;
ett_gtp_array[17] = &ett_gtp_net_cap;
ett_gtp_array[18] = &ett_gtp_can_pack;
ett_gtp_array[19] = &ett_gtp_proto;
ett_gtp_array[20] = &ett_gtp_gsn_addr;
ett_gtp_array[21] = &ett_gtp_tft;
ett_gtp_array[22] = &ett_gtp_tft_pf;
ett_gtp_array[23] = &ett_gtp_tft_flags;
ett_gtp_array[24] = &ett_gtp_rab_setup;
ett_gtp_array[25] = &ett_gtp_hdr_list;
ett_gtp_array[26] = &ett_gtp_rel_pack;
ett_gtp_array[27] = &ett_gtp_node_addr;
ett_gtp_array[28] = &ett_gtp_mm_cntxt;
last_offset = GTP_NUM_INDIVIDUAL_ELEMS;
for (i=0; i < NUM_GTP_IES; i++, last_offset++)
{
ett_gtp_ies[i] = -1;
ett_gtp_array[last_offset] = &ett_gtp_ies[i];
}
proto_gtp = proto_register_protocol("GPRS Tunneling Protocol", "GTP", "gtp");
/* Created to remove Decode As confusion */
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));
gtp_module = prefs_register_protocol(proto_gtp, proto_reg_handoff_gtp);
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_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);
register_dissector("gtp", dissect_gtp, proto_gtp);
register_dissector("gtpprime", dissect_gtpprime, proto_gtpprime);
gtp_priv_ext_dissector_table = register_dissector_table("gtp.priv_ext", "GTP PRIVATE EXT", 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);
register_init_routine(gtp_init);
register_cleanup_routine(gtp_cleanup);
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 gboolean Initialized = FALSE;
static dissector_handle_t gtp_handle, gtp_prime_handle;
static gboolean gtp_over_tcp;
static guint gtpv0_port;
static guint gtpv1c_port;
static guint gtpv1u_port;
if (!Initialized) {
gtp_handle = find_dissector("gtp");
gtp_prime_handle = find_dissector("gtpprime");
ppp_subdissector_table = find_dissector_table("ppp.protocol");
radius_register_avp_dissector(VENDOR_THE3GPP, 5, dissect_radius_qos_umts);
radius_register_avp_dissector(VENDOR_THE3GPP, 12, dissect_radius_selection_mode);
radius_register_avp_dissector(VENDOR_THE3GPP, 22, dissect_radius_user_loc);
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);
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;
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) {
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 - http://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:
*/