/* packet-gtp.c * * $Id$ * * Routines for GTP dissection * Copyright 2001, Michal Melerowicz * Nicolas Balkota * * Updates and corrections: * Copyright 2006 - 2009, Anders Broman * * Added Bearer control mode dissection: * Copyright 2011, Grzegorz Szczytowski * * Updates and corrections: * Copyright 2011-2012, Anders Broman * * PDCP PDU number extension header support added by Martin Isaksson * * Control Plane Request-Response tracking code Largely based on similar routines in * packet-ldap.c by Ronnie Sahlberg * Added by Kari Tiirikainen * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * Ref: 3GPP TS 29.060 * http://www.3gpp.org/ftp/Specs/html-info/29060.htm * GTP' 3GPP TS 32.295 */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include #include #include #include #include #include #include #include "packet-ppp.h" #include "packet-radius.h" #include "packet-bssap.h" #include "packet-gsm_a_common.h" #include "packet-gsm_map.h" #include "packet-gprscdr.h" #include "packet-per.h" #include "packet-ranap.h" #include "packet-bssgp.h" #include "packet-e212.h" #include "packet-gtp.h" 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 static gboolean g_gtp_over_tcp = TRUE; static guint g_gtpv0_port = GTPv0_PORT; static guint g_gtpv1c_port = GTPv1C_PORT; static guint g_gtpv1u_port = GTPv1U_PORT; void proto_reg_handoff_gtp(void); static int proto_gtp = -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_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_imsi = -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_next = -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_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_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_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_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_targetRNC_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_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_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; /* 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_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 gboolean g_gtp_tpdu = TRUE; static gboolean g_gtp_etsi_order = FALSE; static int gtp_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_PDCP_SN 0xC0 static const value_string next_extension_header_fieldvals[] = { { 0, "No more extension headers"}, { 1, "MBMS support indication"}, { 2, "MS Info Change Reporting support indication"}, {GTP_EXT_HDR_PDCP_SN, "PDCP PDU number"}, {0xc1, "Suspend Request"}, {0xc2, "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 */ /* 212-238 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 */ /* 212-238 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 */ /* 212-238 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"}, {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 dissector_handle_t ip_handle; static dissector_handle_t ipv6_handle; static dissector_handle_t ppp_handle; static dissector_handle_t data_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; static gtp_msg_hash_t *gtp_match_response(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, gint seq_nr, guint msgtype); static int decode_gtp_cause(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_imsi(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_rai(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_tlli(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_ptmsi(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_qos_gprs(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_reorder(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_auth_tri(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_map_cause(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_ptmsi_sig(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_ms_valid(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_recovery(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_sel_mode(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_16(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_17(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_18(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_19(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_nsapi(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_ranap_cause(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_rab_cntxt(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_rp_sms(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_rp(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_pkt_flow_id(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_chrg_char(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_trace_ref(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_trace_type(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_ms_reason(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_tr_comm(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_chrg_id(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_user_addr(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_mm_cntxt(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_pdp_cntxt(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_apn(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_gsn_addr(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_proto_conf(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_msisdn(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_qos_umts(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_auth_qui(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_tft(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_target_id(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_utran_cont(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_rab_setup(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_hdr_list(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_trigger_id(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_omc_id(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_ran_tr_cont(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_pdp_cont_prio(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_add_rab_setup_inf(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_ssgn_no(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_common_flgs(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_apn_res(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_ra_prio_lcs(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_rat_type(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_usr_loc_inf(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_ms_time_zone(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_imeisv(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_camel_chg_inf_con(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_mbms_ue_ctx(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_tmgi(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_rim_ra(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_mbms_prot_conf_opt(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_mbms_sa(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_src_rnc_pdp_ctx_inf(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_add_trs_inf(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_hop_count(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_sel_plmn_id(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_mbms_ses_id(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_mbms_2g_3g_ind(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_enh_nsapi(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_mbms_ses_dur(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_add_mbms_trs_inf(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_mbms_ses_id_rep_no(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_mbms_time_to_data_tr(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_ps_ho_req_ctx(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_bss_cont(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_cell_id(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_pdu_no(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_bssgp_cause(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_mbms_bearer_cap(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_rim_ra_disc(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_lst_set_up_pfc(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_ps_handover_xid(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_direct_tnl_flg(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_ms_inf_chg_rep_act(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_corrl_id(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_fqdn(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_evolved_allc_rtn_p1(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_evolved_allc_rtn_p2(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_extended_common_flgs(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_uci(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_csg_inf_rep_act(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_csg_id(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_cmi(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_apn_ambr(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_ue_network_cap(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_ue_ambr(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_apn_ambr_with_nsapi(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_ggsn_back_off_time(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_sig_pri_ind(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_sig_pri_ind_w_nsapi(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_higher_br_16mb_flg(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_max_mbr_apn_ambr(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_add_mm_ctx_srvcc(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_add_flgs_srvcc(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_stn_sr(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_c_msisdn(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_ext_ranap_cause(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_bearer_cntrl_mod(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_mbms_flow_id(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_mbms_ip_mcast_dist(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_mbms_dist_ack(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_reliable_irat_ho_inf(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_rfsp_index(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree); static int decode_gtp_chrg_addr(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_rel_pack(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_can_pack(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_data_req(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_data_resp(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_node_addr(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_priv_ext(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); static int decode_gtp_unknown(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree); typedef struct _gtp_opt { int optcode; int (*decode) (tvbuff_t *, int, packet_info *, proto_tree *); } 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 */ /* 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]; struct _gtp_hdr { guint8 flags; guint8 message; guint16 length; }; static guint8 gtp_version = 0; static const char *yesno[] = { "no", "yes" }; #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_msg_hash_t gcr, *gcrp = NULL; gtp_conv_info_t *gtp_info = (gtp_conv_info_t *)pinfo->private_data; 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->fd->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->fd->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 cant reuse the old one, grab a new chunk */ if (!gcrp) { gcrp = se_new(gtp_msg_hash_t); } gcrp->seq_nr=seq_nr; gcrp->req_frame = pinfo->fd->num; gcrp->req_time = pinfo->fd->abs_ts; gcrp->rep_frame = 0; gcrp->msgtype = msgtype; gcrp->is_request = TRUE; 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->fd->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->fd->abs_ts, &gcrp->req_time); it = proto_tree_add_time(tree, hf_gtp_time, tvb, 0, 0, &ns); PROTO_ITEM_SET_GENERATED(it); } } 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) { guint8 cause; cause = tvb_get_guint8(tvb, offset + 1); 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 _U_, proto_tree * tree) { const gchar *imsi_str; /* Octets 2 - 9 IMSI */ imsi_str = tvb_bcd_dig_to_ep_str( tvb, offset+1, 8, NULL, FALSE); proto_tree_add_string(tree, hf_gtp_imsi, tvb, offset+1, 8, imsi_str); 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) { proto_tree *ext_tree_rai; proto_item *te; te = proto_tree_add_text(tree, tvb, offset, 1, "%s", val_to_str_ext_const(GTP_EXT_RAI, >p_val_ext, "Unknown message")); ext_tree_rai = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_RAI]); dissect_e212_mcc_mnc(tvb, pinfo, ext_tree_rai, offset+1, TRUE); proto_tree_add_uint(ext_tree_rai, hf_gtp_rai_lac, tvb, offset + 4, 2, tvb_get_ntohs(tvb, offset + 4)); proto_tree_add_uint(ext_tree_rai, hf_gtp_rai_rac, tvb, offset + 6, 1, tvb_get_guint8(tvb, offset + 6)); 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) { 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) { 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; proto_item *te; 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; te = proto_tree_add_text(tree, tvb, offset - adjust, 3 + adjust, "%s: delay: %u, reliability: %u, peak: %u, precedence: %u, mean: %u", qos_str, (delay >> 3) & 0x07, reliability, (peak >> 4) & 0x0F, precedence, mean); ext_tree_qos = proto_item_add_subtree(te, ett_gtp_qos); 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) { 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) { 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) { proto_tree *ext_tree_auth_tri; proto_item *te; te = proto_tree_add_text(tree, tvb, offset, 29, "%s", val_to_str_ext_const(GTP_EXT_AUTH_TRI, >p_val_ext, "Unknown message")); ext_tree_auth_tri = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_AUTH_TRI]); proto_tree_add_text(ext_tree_auth_tri, tvb, offset + 1, 16, "RAND: %s", tvb_bytes_to_str(tvb, offset + 1, 16)); proto_tree_add_text(ext_tree_auth_tri, tvb, offset + 17, 4, "SRES: %s", tvb_bytes_to_str(tvb, offset + 17, 4)); proto_tree_add_text(ext_tree_auth_tri, tvb, offset + 21, 8, "Kc: %s", tvb_bytes_to_str(tvb, offset + 21, 8)); 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) { 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) { 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) { 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) { 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) { 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 _U_, proto_tree * tree) { guint16 ext_flow_label; guint32 teid_data; 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); proto_tree_add_uint(tree, hf_gtp_teid_data, tvb, offset, 5, teid_data); return 5; default: proto_tree_add_text(tree, 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 _U_, proto_tree * tree) { guint16 flow_sig; guint32 teid_cp; 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); proto_tree_add_uint(tree, hf_gtp_teid_cp, tvb, offset, 5, teid_cp); return 5; default: proto_tree_add_text(tree, 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 _U_, proto_tree * tree) { guint16 flow_ii; guint32 teid_ii; proto_tree *ext_tree_flow_ii; proto_item *te; switch (gtp_version) { case 0: te = proto_tree_add_text(tree, tvb, offset, 4, "%s", val_to_str_ext_const(GTP_EXT_FLOW_II, >p_val_ext, "Unknown message")); ext_tree_flow_ii = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_FLOW_II]); 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: te = proto_tree_add_text(tree, tvb, offset, 6, "%s", val_to_str_ext_const(GTP_EXT_TEID_II, >pv1_val_ext, "Unknown message")); ext_tree_flow_ii = proto_item_add_subtree(te, ett_gtp_flow_ii); 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_text(tree, 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 _U_, proto_tree * tree) { 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_text(tree, 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) { guint8 nsapi; proto_tree *ext_tree; proto_item *te; te = proto_tree_add_text(tree, tvb, offset, 10, "%s", val_to_str_ext_const(GTP_EXT_NSAPI, >p_val_ext, "Unknown message")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_NSAPI]); 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) { 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) { proto_tree *ext_tree_rab_cntxt; proto_item *te; te = proto_tree_add_text(tree, tvb, offset, 10, "%s", val_to_str_ext_const(GTP_EXT_RAB_CNTXT, >p_val_ext, "Unknown message")); ext_tree_rab_cntxt = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_RAB_CNTXT]); 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) { 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) { 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) { 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) { 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) { 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) { 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) { 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s : ", val_to_str_ext_const(GTP_EXT_RA_PRIO_LCS, >p_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_RA_PRIO_LCS]); 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) { 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) { 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) { guint16 length; guint8 pdp_typ, pdp_org; guint32 addr_ipv4; struct e_in6_addr addr_ipv6; 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); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%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")); ext_tree_user = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_USER_ADDR]); proto_tree_add_text(ext_tree_user, tvb, offset + 1, 2, "Length : %u", length); 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: addr_ipv4 = tvb_get_ipv4(tvb, offset + 5); proto_tree_add_ipv4(ext_tree_user, hf_gtp_user_ipv4, tvb, offset + 5, 4, addr_ipv4); proto_item_append_text(te, " : %s", ip_to_str((guint8 *) & addr_ipv4)); break; case 0x57: tvb_get_ipv6(tvb, offset + 5, &addr_ipv6); proto_tree_add_ipv6(ext_tree_user, hf_gtp_user_ipv6, tvb, offset + 5, 16, (guint8 *) & addr_ipv6); proto_item_append_text(te, " : %s", ip6_to_str((struct e_in6_addr *) &addr_ipv6)); 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; proto_item *te_trip; guint16 i; for (i = 0; i < count; i++) { te_trip = proto_tree_add_text(tree, tvb, offset + i * 28, 28, "Triplet no%x", i); ext_tree_trip = proto_item_add_subtree(te_trip, ett_gtp_trip); proto_tree_add_text(ext_tree_trip, tvb, offset + i * 28, 16, "RAND: %s", tvb_bytes_to_str(tvb, offset + i * 28, 16)); proto_tree_add_text(ext_tree_trip, tvb, offset + i * 28 + 16, 4, "SRES: %s", tvb_bytes_to_str(tvb, offset + i * 28 + 16, 4)); proto_tree_add_text(ext_tree_trip, tvb, offset + i * 28 + 20, 8, "Kc: %s", tvb_bytes_to_str(tvb, offset + i * 28 + 20, 8)); } 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++) { te_quint = proto_tree_add_text(tree, tvb, offset, -1, "Quintuplet #%x", i + 1); ext_tree_quint = proto_item_add_subtree(te_quint, ett_gtp_quint); proto_tree_add_text(ext_tree_quint, tvb, offset + q_offset, 16, "RAND: %s", tvb_bytes_to_str(tvb, offset, 16)); q_offset = q_offset + 16; xres_len = tvb_get_guint8(tvb, offset + q_offset); proto_tree_add_text(ext_tree_quint, tvb, offset + q_offset, 1, "XRES length: %u", xres_len); q_offset++; proto_tree_add_text(ext_tree_quint, tvb, offset + q_offset, xres_len, "XRES: %s", tvb_bytes_to_str(tvb, offset + q_offset, xres_len)); q_offset = q_offset + xres_len; proto_tree_add_text(ext_tree_quint, tvb, offset + q_offset, 16, "Quintuplet Ciphering Key: %s", tvb_bytes_to_str(tvb, offset + q_offset, 16)); q_offset = q_offset + 16; proto_tree_add_text(ext_tree_quint, tvb, offset + q_offset, 16, "Quintuplet Integrity Key: %s", tvb_bytes_to_str(tvb, offset + q_offset, 16)); q_offset = q_offset + 16; auth_len = tvb_get_guint8(tvb, offset + q_offset); proto_tree_add_text(ext_tree_quint, tvb, offset + q_offset, 1, "Authentication length: %u", auth_len); q_offset++; proto_tree_add_text(ext_tree_quint, tvb, offset + q_offset, auth_len, "AUTH: %s", tvb_bytes_to_str(tvb, offset + q_offset, auth_len)); 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) { guint16 length, quint_len, con_len; guint8 count, sec_mode, len, iei; proto_tree *ext_tree_mm; proto_item *te; proto_item *tf = NULL; proto_tree *tf_tree = NULL; te = proto_tree_add_text(tree, tvb, offset, 1, "%s", val_to_str_ext_const(GTP_EXT_MM_CNTXT, >p_val_ext, "Unknown message")); ext_tree_mm = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_MM_CNTXT]); /* 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_text(ext_tree_mm, tvb, offset + 1, 2, "Length: %x", length); 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_text(ext_tree_mm, tvb, offset + 5, 16, "Ciphering key CK: %s", tvb_bytes_to_str(tvb, offset + 5, 16)); proto_tree_add_text(ext_tree_mm, tvb, offset + 21, 16, "Integrity key IK: %s", tvb_bytes_to_str(tvb, offset + 21, 16)); quint_len = tvb_get_ntohs(tvb, offset + 37); proto_tree_add_text(ext_tree_mm, tvb, offset + 37, 2, "Quintuplets length: 0x%x (%u)", quint_len, quint_len); 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_text(ext_tree_mm, tvb, offset + 5, 8, "Ciphering key Kc: %s", tvb_bytes_to_str(tvb, offset + 5, 8)); 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_text(ext_tree_mm, tvb, offset + 5, 16, "Ciphering key CK: %s", tvb_bytes_to_str(tvb, offset + 5, 16)); proto_tree_add_text(ext_tree_mm, tvb, offset + 21, 16, "Integrity key IK: %s", tvb_bytes_to_str(tvb, offset + 21, 16)); quint_len = tvb_get_ntohs(tvb, offset + 37); proto_tree_add_text(ext_tree_mm, tvb, offset + 37, 2, "Quintuplets length: 0x%x (%u)", quint_len, quint_len); 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_text(ext_tree_mm, tvb, offset + 5, 8, "Ciphering key Kc: %s", tvb_bytes_to_str(tvb, offset + 5, 8)); quint_len = tvb_get_ntohs(tvb, offset + 13); proto_tree_add_text(ext_tree_mm, tvb, offset + 13, 2, "Quintuplets length: 0x%x (%u)", quint_len, quint_len); 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 ) */ de_gmm_drx_param(tvb, ext_tree_mm, pinfo, offset, 2, NULL, 0); offset = offset + 2; len = tvb_get_guint8(tvb, offset); tf = proto_tree_add_text(ext_tree_mm, tvb, offset, len + 1, "MS Network Capability"); tf_tree = proto_item_add_subtree(tf, ett_gtp_net_cap); proto_tree_add_text(tf_tree, tvb, offset, 1, "Length of MS network capability contents: %u", 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_text(ext_tree_mm, tvb, offset, 2, "Container length: %u", con_len); offset = offset + 2; if (con_len > 0) { proto_tree_add_text(ext_tree_mm, tvb, offset, con_len, "Container"); iei = tvb_get_guint8(tvb,offset); if (iei == 0x23) { proto_tree_add_text(ext_tree_mm, tvb, offset, 1, "Mobile identity IEI %u",iei); offset++; len = tvb_get_guint8(tvb,offset); proto_tree_add_text(ext_tree_mm, tvb, offset, 1, "Length %u",len); offset++; de_mid(tvb, ext_tree_mm, pinfo, offset, len, NULL, 0); } else { proto_tree_add_text(ext_tree_mm, tvb, offset, 1, "Unknown IEI %u - Later spec than TS 29.060 9.4.0 used?",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) { 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, 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; guint8 res_ber, sdu_err_ratio; guint8 trans_delay, traf_handl_prio; guint8 guar_ul, guar_dl, guar_ul_ext, guar_dl_ext; guint8 src_stat_desc, sig_ind; proto_tree *ext_tree_qos, *ext_tree_qos_arp; proto_item *te; 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 * . 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); te = proto_tree_add_text(tree, tvb, offset, length + 1, "%s", qos_str); ext_tree_qos = proto_item_add_subtree(te, ett_gtp_qos); proto_tree_add_text(ext_tree_qos, tvb, offset, 1, "Length: %u", length); offset++; retval = length + 1; break; case 2: length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, length + 3, "%s", qos_str); ext_tree_qos = proto_item_add_subtree(te, ett_gtp_qos); proto_tree_add_text(ext_tree_qos, tvb, offset + 1, 2, "Length: %u", 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_length(tvb); te = proto_tree_add_text(tree, tvb, offset, length, "%s", qos_str); ext_tree_qos = proto_item_add_subtree(te, ett_gtp_qos); 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_text(ext_tree_qos, tvb, offset + 2, 1, "Hyphen separator: -"); offset++; /* "Get rid" of hyphen */ } /* Now, we modify offset here and in order to use type later * effectively.*/ offset++; length -= offset; length /= 2; 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 */ offset++; arp = wrapped_tvb_get_guint8(tvb, offset, 2); te = proto_tree_add_text(ext_tree_qos, tvb, offset, 2, "Allocation/Retention Priority"); ext_tree_qos_arp = proto_item_add_subtree(te, ett_gtp_qos_arp); proto_tree_add_boolean(ext_tree_qos_arp, hf_gtp_qos_arp_pci, tvb, offset, 2, arp); proto_tree_add_uint(ext_tree_qos_arp, hf_gtp_qos_arp_pl, tvb, offset, 2, arp); proto_tree_add_boolean(ext_tree_qos_arp, hf_gtp_qos_arp_pvi, tvb, offset, 2, arp); 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 * 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) { 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); } /* * 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(ext_tree_qos, hf_gtp_qos_max_sdu_size, tvb, offset + (5 - 1) * utf8_type + 1, utf8_type, mss, "Maximum SDU size: %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(ext_tree_qos, hf_gtp_qos_max_ul, tvb, offset + (6 - 1) * utf8_type + 1, utf8_type, max_ul, "Maximum bit rate for uplink: %u kbps", max_ul); if ((max_ul > 63) && (max_ul <= 127)) { mu = 64 + (max_ul - 64) * 8; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_ul, tvb, offset + (6 - 1) * utf8_type + 1, utf8_type, mu, "Maximum bit rate for uplink: %u kbps", mu); } if ((max_ul > 127) && (max_ul <= 254)) { mu = 576 + (max_ul - 128) * 64; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_ul, tvb, offset + (6 - 1) * utf8_type + 1, utf8_type, mu, "Maximum bit rate for uplink: %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(ext_tree_qos, hf_gtp_qos_max_dl, tvb, offset + (7 - 1) * utf8_type + 1, utf8_type, max_dl, "Maximum bit rate for downlink: %u kbps", max_dl); if ((max_dl > 63) && (max_dl <= 127)) { md = 64 + (max_dl - 64) * 8; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_dl, tvb, offset + (7 - 1) * utf8_type + 1, utf8_type, md, "Maximum bit rate for downlink: %u kbps", md); } if ((max_dl > 127) && (max_dl <= 254)) { md = 576 + (max_dl - 128) * 64; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_dl, tvb, offset + (7 - 1) * utf8_type + 1, utf8_type, md, "Maximum bit rate for downlink: %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(ext_tree_qos, hf_gtp_qos_guar_ul, tvb, offset + (10 - 1) * utf8_type + 1, utf8_type, guar_ul, "Guaranteed bit rate for uplink: %u kbps", guar_ul); if ((guar_ul > 63) && (guar_ul <= 127)) { gu = 64 + (guar_ul - 64) * 8; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_ul, tvb, offset + (10 - 1) * utf8_type + 1, utf8_type, gu, "Guaranteed bit rate for uplink: %u kbps", gu); } if ((guar_ul > 127) && (guar_ul <= 254)) { gu = 576 + (guar_ul - 128) * 64; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_ul, tvb, offset + (10 - 1) * utf8_type + 1, utf8_type, gu, "Guaranteed bit rate for uplink: %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(ext_tree_qos, hf_gtp_qos_guar_dl, tvb, offset + (11 - 1) * utf8_type + 1, utf8_type, guar_dl, "Guaranteed bit rate for downlink: %u kbps", guar_dl); if ((guar_dl > 63) && (guar_dl <= 127)) { gd = 64 + (guar_dl - 64) * 8; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_dl, tvb, offset + (11 - 1) * utf8_type + 1, utf8_type, gd, "Guaranteed bit rate for downlink: %u kbps", gd); } if ((guar_dl > 127) && (guar_dl <= 254)) { gd = 576 + (guar_dl - 128) * 64; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_dl, tvb, offset + (11 - 1) * utf8_type + 1, utf8_type, gd, "Guaranteed bit rate for downlink: %u kbps", gd); } if(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_text(ext_tree_qos, 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(ext_tree_qos, hf_gtp_qos_guar_dl, tvb, offset + (14 - 1) * utf8_type + 1, utf8_type, gd, "Ext Guaranteed bit rate for downlink: %u kbps", gd); } if ((guar_dl_ext > 0x4a) && (max_dl_ext <= 0xba)) { gd = 16 + (guar_dl_ext-0x4a); proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_dl, tvb, offset + (14 - 1) * utf8_type + 1, utf8_type, gd, "Ext Guaranteed bit rate for downlink: %u Mbps", gd); } if ((guar_dl_ext > 0xba) && (max_dl_ext <= 0xfa)) { gd = 128 + (guar_dl_ext-0xba)*2; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_dl, tvb, offset + (14 - 1) * utf8_type + 1, utf8_type, gd, "Ext Guaranteed bit rate for downlink: %u Mbps", gd); } } if(length > 16) { /* Octet 17 * This field is an extension of the Maximum bit rate for uplink in octet 8. The coding is identical to that of the Maximum bit * rate for downlink (extended). */ if ((max_ul_ext > 0) && (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_text(ext_tree_qos, 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) && (max_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) && (max_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); } } } return retval; } /* Diameter 3GPP AVP Code: 5 3GPP-GPRS Negotiated QoS profile */ static int dissect_diameter_3gpp_qosprofile(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_) { decode_qos_umts(tvb, 0, tree, "UMTS GTP QoS Profile", 3); return tvb_length(tvb); } static const gchar * dissect_radius_qos_umts(proto_tree * tree, tvbuff_t * tvb, packet_info* pinfo _U_) { decode_qos_umts(tvb, 0, tree, "UMTS GTP QoS Profile", 3); return tvb_get_ephemeral_string(tvb, 0, tvb_length(tvb)); } static void decode_apn(tvbuff_t * tvb, int offset, guint16 length, proto_tree * tree) { guint8 *apn = NULL; int name_len, tmp; if (length > 0) { name_len = tvb_get_guint8(tvb, offset); if (name_len < 0x20) { apn = tvb_get_ephemeral_string(tvb, offset + 1, length - 1); for (;;) { if (name_len >= length - 1) break; tmp = name_len; name_len = name_len + apn[tmp] + 1; apn[tmp] = '.'; } } else apn = tvb_get_ephemeral_string(tvb, offset, length); proto_tree_add_string(tree, hf_gtp_apn, tvb, offset, length, apn); } } static void decode_fqdn(tvbuff_t * tvb, int offset, guint16 length, proto_tree * tree) { guint8 *fqdn = NULL; int name_len, tmp; if (length > 0) { name_len = tvb_get_guint8(tvb, offset); if (name_len < 0x20) { fqdn = tvb_get_ephemeral_string(tvb, offset + 1, length - 1); for (;;) { if (name_len >= length - 1) break; tmp = name_len; name_len = name_len + fqdn[tmp] + 1; fqdn[tmp] = '.'; } } else fqdn = tvb_get_ephemeral_string(tvb, offset, length); proto_tree_add_string(tree, hf_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) { guint8 ggsn_addr_len, apn_len, trans_id, vaa, asi, order; guint8 nsapi, sapi, pdu_send_no, pdu_rec_no; guint8 pdp_cntxt_id, pdp_type_org, pdp_type_num, pdp_addr_len; guint16 length, sn_down, sn_up, up_flow; guint32 addr_ipv4; struct e_in6_addr addr_ipv6; proto_tree *ext_tree_pdp; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, length + 3, "%s", val_to_str_ext_const(GTP_EXT_PDP_CNTXT, >p_val_ext, "Unknown message")); ext_tree_pdp = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_PDP_CNTXT]); vaa = (tvb_get_guint8(tvb, offset + 3) >> 6) & 0x01; asi = (tvb_get_guint8(tvb, offset + 3) >> 5) & 0x01; order = (tvb_get_guint8(tvb, offset + 3) >> 4) & 0x01; nsapi = tvb_get_guint8(tvb, offset + 3) & 0x0F; sapi = tvb_get_guint8(tvb, offset + 4) & 0x0F; proto_tree_add_text(ext_tree_pdp, tvb, offset + 3, 1, "VPLMN address allowed: %s", yesno[vaa]); proto_tree_add_text(ext_tree_pdp, tvb, offset + 3, 1, "Activity Status Indicator: %s", yesno[asi]); proto_tree_add_text(ext_tree_pdp, tvb, offset + 3, 1, "Reordering required: %s", yesno[order]); proto_tree_add_text(ext_tree_pdp, tvb, offset + 3, 1, "NSAPI: %u", nsapi); proto_tree_add_text(ext_tree_pdp, tvb, offset + 4, 1, "SAPI: %u", sapi); 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, ext_tree_pdp, "QoS subscribed", 1); offset = offset + decode_qos_umts(tvb, offset, ext_tree_pdp, "QoS requested", 1); offset = offset + decode_qos_umts(tvb, offset, ext_tree_pdp, "QoS negotiated", 1); break; default: break; } sn_down = tvb_get_ntohs(tvb, offset); sn_up = tvb_get_ntohs(tvb, offset + 2); pdu_send_no = tvb_get_guint8(tvb, offset + 4); pdu_rec_no = tvb_get_guint8(tvb, offset + 5); proto_tree_add_text(ext_tree_pdp, tvb, offset, 2, "Sequence number down: %u", sn_down); proto_tree_add_text(ext_tree_pdp, tvb, offset + 2, 2, "Sequence number up: %u", sn_up); proto_tree_add_text(ext_tree_pdp, tvb, offset + 4, 1, "Send N-PDU number: %u", pdu_send_no); proto_tree_add_text(ext_tree_pdp, tvb, offset + 5, 1, "Receive N-PDU number: %u", pdu_rec_no); switch (gtp_version) { case 0: up_flow = tvb_get_ntohs(tvb, offset + 6); proto_tree_add_text(ext_tree_pdp, tvb, offset + 6, 2, "Uplink flow label signalling: %u", up_flow); offset = offset + 8; break; case 1: pdp_cntxt_id = tvb_get_guint8(tvb, offset + 14); 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_text(ext_tree_pdp, tvb, offset + 14, 1, "PDP context identifier: %u", pdp_cntxt_id); offset = offset + 15; break; default: break; } pdp_type_org = tvb_get_guint8(tvb, offset) & 0x0F; pdp_type_num = tvb_get_guint8(tvb, offset + 1); pdp_addr_len = tvb_get_guint8(tvb, offset + 2); proto_tree_add_text(ext_tree_pdp, tvb, offset, 1, "PDP organization: %s", val_to_str_const(pdp_type_org, pdp_type, "Unknown PDP org")); proto_tree_add_text(ext_tree_pdp, tvb, offset + 1, 1, "PDP type: %s", val_to_str_const(pdp_type_num, pdp_type, "Unknown PDP type")); proto_tree_add_text(ext_tree_pdp, tvb, offset + 2, 1, "PDP address length: %u", pdp_addr_len); if (pdp_addr_len > 0) { switch (pdp_type_num) { case 0x21: addr_ipv4 = tvb_get_ipv4(tvb, offset + 3); proto_tree_add_text(ext_tree_pdp, tvb, offset + 3, 4, "PDP address: %s", ip_to_str((guint8 *) & addr_ipv4)); break; case 0x57: tvb_get_ipv6(tvb, offset + 3, &addr_ipv6); proto_tree_add_text(ext_tree_pdp, tvb, offset + 3, 16, "PDP address: %s", ip6_to_str((struct e_in6_addr *) &addr_ipv6)); break; default: break; } } offset = offset + 3 + pdp_addr_len; ggsn_addr_len = tvb_get_guint8(tvb, offset); proto_tree_add_text(ext_tree_pdp, tvb, offset, 1, "GGSN address length: %u", ggsn_addr_len); switch (ggsn_addr_len) { case 4: addr_ipv4 = tvb_get_ipv4(tvb, offset + 1); proto_tree_add_text(ext_tree_pdp, tvb, offset + 1, 4, "GGSN Address for control plane: %s", ip_to_str((guint8 *) & addr_ipv4)); break; case 16: tvb_get_ipv6(tvb, offset + 1, &addr_ipv6); proto_tree_add_text(ext_tree_pdp, tvb, offset + 1, 16, "GGSN Address for User Traffic: %s", ip6_to_str((struct e_in6_addr *) &addr_ipv6)); break; default: break; } offset = offset + 1 + ggsn_addr_len; if (gtp_version == 1) { ggsn_addr_len = tvb_get_guint8(tvb, offset); proto_tree_add_text(ext_tree_pdp, tvb, offset, 1, "GGSN 2 address length: %u", ggsn_addr_len); switch (ggsn_addr_len) { case 4: addr_ipv4 = tvb_get_ipv4(tvb, offset + 1); proto_tree_add_text(ext_tree_pdp, tvb, offset + 1, 4, "GGSN 2 address: %s", ip_to_str((guint8 *) & addr_ipv4)); break; case 16: tvb_get_ipv6(tvb, offset + 1, &addr_ipv6); proto_tree_add_text(ext_tree_pdp, tvb, offset + 1, 16, "GGSN 2 address: %s", ip6_to_str((struct e_in6_addr *) &addr_ipv6)); break; default: break; } offset = offset + 1 + ggsn_addr_len; } apn_len = tvb_get_guint8(tvb, offset); proto_tree_add_text(ext_tree_pdp, tvb, offset, 1, "APN length: %u", apn_len); decode_apn(tvb, offset + 1, apn_len, ext_tree_pdp); 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_text(ext_tree_pdp, tvb, offset, 2, "Transaction identifier: %u", trans_id); 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) { guint16 length; proto_tree *ext_tree_apn; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, length + 3, "%s", val_to_str_ext_const(GTP_EXT_APN, >p_val_ext, "Unknown field")); ext_tree_apn = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_APN]); proto_tree_add_text(ext_tree_apn, tvb, offset + 1, 2, "APN length : %u", length); decode_apn(tvb, offset + 3, length, ext_tree_apn); 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) { guint16 length; tvbuff_t *next_tvb; proto_tree *ext_tree_proto; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, length + 3, "%s", val_to_str_ext_const(GTP_EXT_PROTO_CONF, >p_val_ext, "Unknown message")); ext_tree_proto = proto_item_add_subtree(te, ett_gtp_proto); proto_tree_add_text(ext_tree_proto, tvb, offset + 1, 2, "Length: %u", 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(tvb, offset + 3, length, length); pinfo->link_dir = P2P_DIR_UL; 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) { guint8 addr_type, addr_len; guint16 length; guint32 addr_ipv4; struct e_in6_addr addr_ipv6; proto_tree *ext_tree_gsn_addr; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "GSN address : "); ext_tree_gsn_addr = proto_item_add_subtree(te, ett_gtp_gsn_addr); switch (length) { case 4: proto_tree_add_text(ext_tree_gsn_addr, tvb, offset + 1, 2, "GSN address length : %u", length); addr_ipv4 = tvb_get_ipv4(tvb, offset + 3); proto_item_append_text(te, "%s", ip_to_str((guint8 *) & addr_ipv4)); proto_tree_add_ipv4(ext_tree_gsn_addr, hf_gtp_gsn_ipv4, tvb, offset + 3, 4, addr_ipv4); break; case 5: proto_tree_add_text(ext_tree_gsn_addr, tvb, offset + 1, 2, "GSN address Information Element length : %u", length); 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); addr_ipv4 = tvb_get_ipv4(tvb, offset + 4); proto_item_append_text(te, "%s", ip_to_str((guint8 *) & addr_ipv4)); proto_tree_add_ipv4(ext_tree_gsn_addr, hf_gtp_gsn_ipv4, tvb, offset + 4, 4, addr_ipv4); break; case 16: proto_tree_add_text(ext_tree_gsn_addr, tvb, offset + 1, 2, "GSN address length : %u", length); tvb_get_ipv6(tvb, offset + 3, &addr_ipv6); proto_item_append_text(te, "%s", ip6_to_str((struct e_in6_addr *) &addr_ipv6)); proto_tree_add_ipv6(ext_tree_gsn_addr, hf_gtp_gsn_ipv6, tvb, offset + 3, 16, (guint8 *) & addr_ipv6); break; case 17: proto_tree_add_text(ext_tree_gsn_addr, tvb, offset + 1, 2, "GSN address Information Element length : %u", length); 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); tvb_get_ipv6(tvb, offset + 4, &addr_ipv6); proto_item_append_text(te, "%s", ip6_to_str((struct e_in6_addr *) &addr_ipv6)); proto_tree_add_ipv6(ext_tree_gsn_addr, hf_gtp_gsn_ipv6, tvb, offset + 4, 16, (guint8 *) & addr_ipv6); break; default: proto_item_append_text(te, "unknown type or wrong length"); break; } return 3 + length; } /* GPRS: 9.60 v7.6.0, chapter 7.9.24 * 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) { guint16 length; tvbuff_t *next_tvb; proto_tree *ext_tree_proto; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, length + 3, "%s", val_to_str_ext_const(GTP_EXT_MSISDN, >p_val_ext, "Unknown message")); ext_tree_proto = proto_item_add_subtree(te, ett_gtp_proto); proto_tree_add_text(ext_tree_proto, tvb, offset + 1, 2, "Length: %u", length); length = tvb_get_ntohs(tvb, offset + 1); if (length < 1) return 3; next_tvb = tvb_new_subset(tvb, offset+3, length, 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 _U_, proto_tree * tree) { return decode_qos_umts(tvb, offset, 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) { proto_tree *ext_tree; proto_item *te_quint; guint16 length; guint8 xres_len, auth_len; length = tvb_get_ntohs(tvb, offset + 1); te_quint = proto_tree_add_text(tree, tvb, offset, length + 1, "Quintuplet"); ext_tree = proto_item_add_subtree(te_quint, ett_gtp_quint); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; proto_tree_add_text(ext_tree, tvb, offset, 16, "RAND: %s", tvb_bytes_to_str(tvb, offset, 16)); offset = offset + 16; xres_len = tvb_get_guint8(tvb, offset); proto_tree_add_text(ext_tree, tvb, offset, 1, "XRES length: %u", xres_len); offset++; proto_tree_add_text(ext_tree, tvb, offset, xres_len, "XRES: %s", tvb_bytes_to_str(tvb, offset, xres_len)); offset = offset + xres_len; proto_tree_add_text(ext_tree, tvb, offset, 16, "Quintuplet Ciphering Key: %s", tvb_bytes_to_str(tvb, offset, 16)); offset = offset + 16; proto_tree_add_text(ext_tree, tvb, offset, 16, "Quintuplet Integrity Key: %s", tvb_bytes_to_str(tvb, offset, 16)); offset = offset + 16; auth_len = tvb_get_guint8(tvb, offset); proto_tree_add_text(ext_tree, tvb, offset, 1, "Authentication length: %u", auth_len); offset++; proto_tree_add_text(ext_tree, tvb, offset, auth_len, "AUTH: %s", tvb_bytes_to_str(tvb, offset, auth_len)); 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) { guint16 length, port1, port2, tos; guint8 tft_flags, tft_code, no_packet_filters, i, pf_id, pf_eval, pf_len, pf_content_id, proto; guint pf_offset; guint32 mask_ipv4, addr_ipv4, ipsec_id, label; struct e_in6_addr addr_ipv6, mask_ipv6; proto_tree *ext_tree_tft, *ext_tree_tft_pf, *ext_tree_tft_flags; proto_item *te, *tee, *tef; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "Traffic flow template"); ext_tree_tft = proto_item_add_subtree(te, ett_gtp_tft); tft_flags = tvb_get_guint8(tvb, offset + 3); tft_code = (tft_flags >> 5) & 0x07; no_packet_filters = tft_flags & 0x0F; proto_tree_add_text(ext_tree_tft, tvb, offset + 1, 2, "TFT length: %u", length); tef = proto_tree_add_text(ext_tree_tft, tvb, offset + 3, 1, "TFT flags"); ext_tree_tft_flags = proto_item_add_subtree(tef, ett_gtp_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++) { pf_id = tvb_get_guint8(tvb, offset); tee = proto_tree_add_text(ext_tree_tft, tvb, offset, 1, "Packet filter id: %u", pf_id); 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_text(ext_tree_tft_pf, tvb, offset + 1, 1, "Content length: %u", pf_len); offset = offset + 2; pf_offset = 0; while (pf_offset < pf_len) { pf_content_id = tvb_get_guint8(tvb, offset + pf_offset); switch (pf_content_id) { /* address IPv4 and mask = 8 bytes */ case 0x10: addr_ipv4 = tvb_get_ipv4(tvb, offset + pf_offset + 1); mask_ipv4 = tvb_get_ipv4(tvb, offset + pf_offset + 5); proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset, 9, "ID 0x10: IPv4/mask: %s/%s", ip_to_str((guint8 *) & addr_ipv4), ip_to_str((guint8 *) & mask_ipv4)); pf_offset = pf_offset + 9; break; /* address IPv6 and mask = 32 bytes */ case 0x20: tvb_get_ipv6(tvb, offset + pf_offset + 1, &addr_ipv6); tvb_get_ipv6(tvb, offset + pf_offset + 17, &mask_ipv6); proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset, 33, "ID 0x20: IPv6/mask: %s/%s", ip6_to_str((struct e_in6_addr *) &addr_ipv6), ip6_to_str((struct e_in6_addr *) &mask_ipv6)); pf_offset = pf_offset + 33; break; /* protocol identifier/next header type = 1 byte */ case 0x30: proto = tvb_get_guint8(tvb, offset + pf_offset + 1); proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset, 2, "ID 0x30: IPv4 protocol identifier/IPv6 next header: %u (%x)", proto, proto); pf_offset = pf_offset + 2; break; /* single destination port type = 2 bytes */ case 0x40: port1 = tvb_get_ntohs(tvb, offset + pf_offset + 1); proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset, 3, "ID 0x40: destination port: %u", port1); pf_offset = 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_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset, 5, "ID 0x41: destination port range: %u - %u", port1, port2); pf_offset = pf_offset + 5; break; /* single source port type = 2 bytes */ case 0x50: port1 = tvb_get_ntohs(tvb, offset + pf_offset + 1); proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset, 3, "ID 0x50: source port: %u", port1); pf_offset = 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_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset, 5, "ID 0x51: source port range: %u - %u", port1, port2); pf_offset = pf_offset + 5; break; /* security parameter index type = 4 bytes */ case 0x60: ipsec_id = tvb_get_ntohl(tvb, offset + pf_offset + 1); proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset, 5, "ID 0x60: security parameter index: %x", ipsec_id); pf_offset = pf_offset + 5; break; /* type of service/traffic class type = 2 bytes */ case 0x70: tos = tvb_get_ntohs(tvb, offset + pf_offset + 1); proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset, 2, "ID 0x70: Type of Service/Traffic Class: %u (%x)", tos, tos); pf_offset = pf_offset + 3; break; /* flow label type = 3 bytes */ case 0x80: label = tvb_get_ntoh24(tvb, offset + pf_offset + 1) & 0x0FFFFF; proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset, 4, "ID 0x80: Flow Label: %u (%x)", label, label); pf_offset = pf_offset + 4; break; default: proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset, 1, "Unknown value: %x ", pf_content_id); pf_offset++; /* to avoid infinite loop */ break; } } offset = offset + pf_offset; } } return 3 + length; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.37 * Type = 138 (Decimal) * 25.413(RANAP) TargetID */ static int decode_gtp_target_id(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree) { guint16 length; proto_item *te; proto_tree *ext_tree; tvbuff_t *next_tvb; asn1_ctx_t asn1_ctx; asn1_ctx_init(&asn1_ctx, ASN1_ENC_PER, TRUE, pinfo); length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "Target Identification"); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_TARGET_ID]); offset = offset + 1; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* The Target Identification information element contains the identification of a target RNC. Octets 4-n shall be encoded * as the "Target RNC-ID" part of the "Target ID" parameter in 3GPP TS 25.413 [7]. Therefore, the "Choice Target ID" * that indicates "Target RNC-ID" (numerical value of 0x20) shall not be included in the "Target RNC-ID" value in octets * 4-n. */ next_tvb = tvb_new_subset(tvb, offset, length, length); dissect_ranap_TargetRNC_ID(next_tvb, 0, &asn1_ctx, ext_tree, hf_gtp_targetRNC_ID); 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) { guint16 length; proto_item *te; proto_tree *ext_tree; tvbuff_t *next_tvb; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "UTRAN transparent field"); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_UTRAN_CONT]); offset = offset + 1; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; next_tvb = tvb_new_subset(tvb, offset, length, length); if (data_handle) call_dissector(data_handle, next_tvb, pinfo, ext_tree); 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) { guint32 teid, addr_ipv4; guint16 length; struct e_in6_addr addr_ipv6; proto_tree *ext_tree_rab_setup; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "Radio Access Bearer Setup Information"); ext_tree_rab_setup = proto_item_add_subtree(te, ett_gtp_rab_setup); proto_tree_add_text(ext_tree_rab_setup, tvb, offset + 1, 2, "RAB setup length : %u", length); 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 12: addr_ipv4 = tvb_get_ipv4(tvb, offset + 8); proto_tree_add_ipv4(ext_tree_rab_setup, hf_gtp_rnc_ipv4, tvb, offset + 8, 4, addr_ipv4); break; case 24: tvb_get_ipv6(tvb, offset + 8, &addr_ipv6); proto_tree_add_ipv6(ext_tree_rab_setup, hf_gtp_rnc_ipv6, tvb, offset + 8, 16, (guint8 *) & addr_ipv6); 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) { int i; guint8 length, hdr; proto_tree *ext_tree_hdr_list; proto_item *te; length = tvb_get_guint8(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 2 + length, "%s", val_to_str_ext_const(GTP_EXT_HDR_LIST, >p_val_ext, "Unknown")); ext_tree_hdr_list = proto_item_add_subtree(te, ett_gtp_hdr_list); proto_tree_add_text(ext_tree_hdr_list, tvb, offset + 1, 1, "Number of Extension Header Types in list (i.e., length) : %u", length); for (i = 0; i < length; i++) { hdr = tvb_get_guint8(tvb, offset + 2 + i); proto_tree_add_text(ext_tree_hdr_list, tvb, offset + 2 + i, 1, "No. %u --> Extension Header Type value : %s (%u)", i + 1, val_to_str_ext_const(hdr, >p_val_ext, "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) { guint16 length; length = tvb_get_ntohs(tvb, offset + 1); proto_tree_add_text(tree, tvb, offset, 3 + length, "%s length : %u", val_to_str_ext_const(GTP_EXT_TRIGGER_ID, >p_val_ext, "Unknown"), 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) { guint16 length; length = tvb_get_ntohs(tvb, offset + 1); proto_tree_add_text(tree, tvb, offset, 3 + length, "%s length : %u", val_to_str_ext_const(GTP_EXT_OMC_ID, >p_val_ext, "Unknown"), 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) { guint16 length; guint32 addr_ipv4; struct e_in6_addr addr_ipv6; proto_tree *ext_tree_chrg_addr; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s : ", val_to_str_ext_const(GTP_EXT_CHRG_ADDR, >p_val_ext, "Unknown")); ext_tree_chrg_addr = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_CHRG_ADDR]); proto_tree_add_text(ext_tree_chrg_addr, tvb, offset + 1, 2, "%s length : %u", val_to_str_ext_const(GTP_EXT_CHRG_ADDR, >p_val_ext, "Unknown"), length); switch (length) { case 4: addr_ipv4 = tvb_get_ipv4(tvb, offset + 3); proto_item_append_text(te, "%s", ip_to_str((guint8 *) & addr_ipv4)); proto_tree_add_ipv4(ext_tree_chrg_addr, hf_gtp_chrg_ipv4, tvb, offset + 3, 4, addr_ipv4); break; case 16: tvb_get_ipv6(tvb, offset + 3, &addr_ipv6); proto_item_append_text(te, "%s", ip6_to_str((struct e_in6_addr *) &addr_ipv6)); proto_tree_add_ipv6(ext_tree_chrg_addr, hf_gtp_chrg_ipv6, tvb, offset + 3, 16, (guint8 *) & addr_ipv6); 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 _U_, proto_tree * tree) { guint16 length; proto_tree *ext_tree; proto_item *te; tvbuff_t *next_tvb; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s : ", val_to_str_ext_const(GTP_EXT_RAN_TR_CONT, >p_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_RAN_TR_CONT]); 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(tvb, offset, length, length); if (bssgp_handle) { col_set_fence(pinfo->cinfo, COL_INFO); 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 _U_, proto_tree * tree) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s : ", val_to_str_ext_const(GTP_EXT_PDP_CONT_PRIO, >p_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_PDP_CONT_PRIO]); 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_text(ext_tree, tvb, offset, length, "Data not decoded yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s : ", val_to_str_ext_const(GTP_EXT_ADD_RAB_SETUP_INF, >p_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_ADD_RAB_SETUP_INF]); 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_text(ext_tree, tvb, offset, length, "Data not decoded yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s : ", val_to_str_ext_const(GTP_EXT_SSGN_NO, >p_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_SSGN_NO]); 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_text(ext_tree, tvb, offset, length, "Data not decoded yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s : ", val_to_str_ext_const(GTP_EXT_COMMON_FLGS, >p_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_COMMON_FLGS]); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, ENC_BIG_ENDIAN); offset = offset + 2; /* 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 _U_, proto_tree * tree) { guint16 length; proto_tree *ext_tree_apn_res; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s : ", val_to_str_ext_const(GTP_EXT_APN_RES, >p_val_ext, "Unknown")); ext_tree_apn_res = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_APN_RES]); 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_item *expert_item; expert_item = proto_tree_add_text(tree, tvb, 0, length, "Wrong length indicated. Expected 1, got %u", length); expert_add_info_format(pinfo, expert_item, PI_MALFORMED, PI_ERROR, "Wrong length indicated. Expected 1, got %u", length); PROTO_ITEM_SET_GENERATED(expert_item); return 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 _U_, proto_tree * tree) { guint16 length; proto_tree *ext_tree_rat_type; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_RAT_TYPE, >p_val_ext, "Unknown")); ext_tree_rat_type = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_RAT_TYPE]); 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_item *expert_item; expert_item = proto_tree_add_text(tree, tvb, 0, length, "Wrong length indicated. Expected 1, got %u", length); expert_add_info_format(pinfo, expert_item, PI_MALFORMED, PI_ERROR, "Wrong length indicated. Expected 1, got %u", length); PROTO_ITEM_SET_GENERATED(expert_item); return 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_length(tvb); /* Geographic Location Type */ 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, TRUE); offset+=3; proto_tree_add_item(tree, hf_gtp_rai_lac, tvb, offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_gtp_rai_rac, tvb, offset, 2, 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, 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, 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, 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, TRUE); offset+=3; proto_tree_add_item(tree, hf_gtp_eci, tvb, offset, 4, ENC_BIG_ENDIAN); break; default: proto_tree_add_text(tree, tvb, offset, length - 1, "Unknown Location type data"); break; } return tvb_bytes_to_str(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) { guint16 length; proto_tree *ext_tree, *rai_tree; proto_item *te, *fi; guint8 geo_loc_type; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_USR_LOC_INF, >p_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_USR_LOC_INF]); 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 */ 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]. */ fi = proto_tree_add_text(ext_tree, tvb, offset + 1, 7, "Routeing Area Identity (RAI)"); rai_tree = proto_item_add_subtree(fi, ett_gtp_uli_rai); dissect_e212_mcc_mnc(tvb, pinfo, rai_tree, offset, TRUE); offset+=3; proto_tree_add_item(rai_tree, hf_gtp_rai_lac, tvb, offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(rai_tree, hf_gtp_rai_rac, tvb, offset, 2, ENC_BIG_ENDIAN); break; default: proto_tree_add_text(tree, tvb, offset, length - 1, "Unknown Location type data"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; guint8 data; char sign; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s: ", val_to_str_ext_const(GTP_EXT_MS_TIME_ZONE, >p_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_MS_TIME_ZONE]); 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_text(ext_tree, tvb, offset, 1, "Timezone: 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++; data = tvb_get_guint8(tvb, offset) & 0x3; proto_tree_add_text(ext_tree, tvb, offset, 1, "%s", val_to_str_const(data, daylight_saving_time_vals, "Unknown")); 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) { guint16 length; proto_tree *ext_imeisv; proto_item *te; tvbuff_t *next_tvb; const char *digit_str; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_IMEISV, >p_val_ext, "Unknown")); ext_imeisv = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_IMEISV]); 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(tvb, offset, length, length); digit_str = unpack_digits(next_tvb, 0); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_CAMEL_CHG_INF_CON, >p_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_CAMEL_CHG_INF_CON]); 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_text(ext_tree, tvb, offset, length, "Data not decoded yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_MBMS_UE_CTX, >p_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_MBMS_UE_CTX]); 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_text(ext_tree, tvb, offset, length, "Data not decoded yet"); 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) { guint16 length; proto_tree *ext_tree, *tmgi_tree; proto_item *te, *ti; tvbuff_t *next_tvb; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_TMGI, >p_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_TMGI]); 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(tvb, offset, length, 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_RIM_RA, >p_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_RIM_RA]); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_MBMS_PROT_CONF_OPT, >p_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_MBMS_PROT_CONF_OPT]); 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_text(ext_tree, tvb, offset, length, "Data not decoded yet"); 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 _U_, packet_info * pinfo _U_, proto_tree * tree _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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_MBMS_SES_DUR, >p_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_MBMS_SES_DUR]); 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 _U_, packet_info *pinfo _U_, proto_tree *tree _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 _U_, proto_tree * tree) { tvbuff_t *next_tvb; guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_MBMS_SA, >p_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_MBMS_SA]); 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(tvb, offset, length-3, length-3); dissect_gtp_3gpp_mbms_service_area(next_tvb, pinfo,ext_tree); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_SRC_RNC_PDP_CTX_INF, >p_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_SRC_RNC_PDP_CTX_INF]); 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_text(ext_tree, tvb, offset, length, "Data not decoded yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_ADD_TRS_INF, >p_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_ADD_TRS_INF]); 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_text(ext_tree, tvb, offset, length, "Data not decoded yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_HOP_COUNT, >p_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_HOP_COUNT]); 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_text(ext_tree, tvb, offset, length, "Data not decoded yet"); 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 _U_, proto_tree * tree) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_SEL_PLMN_ID, >p_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_MBMS_SES_ID]); 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_text(ext_tree, tvb, offset, length, "Data not decoded yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_MBMS_SES_ID, >p_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_MBMS_SES_ID]); 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_text(ext_tree, tvb, offset, length, "Data not decoded yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_MBMS_2G_3G_IND, >p_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_MBMS_2G_3G_IND]); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_ENH_NSAPI, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_ENH_NSAPI]); 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_text(ext_tree, tvb, offset, length, "Data not decoded yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_ADD_MBMS_TRS_INF, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_ADD_MBMS_TRS_INF]); 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_text(ext_tree, tvb, offset, length, "Data not decoded yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_MBMS_SES_ID_REP_NO, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_MBMS_SES_ID_REP_NO]); 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_text(ext_tree, tvb, offset, length, "Data not decoded yet"); 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 _U_, packet_info * pinfo _U_, proto_tree * tree _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) { guint16 length; proto_tree *ext_tree; proto_item *te; guint8 time_2_dta_tr; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_MBMS_TIME_TO_DATA_TR, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_MBMS_TIME_TO_DATA_TR]); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_PS_HO_REQ_CTX, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_PS_HO_REQ_CTX]); 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_text(ext_tree, tvb, offset, length, "Data not decoded yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_BSS_CONT, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_BSS_CONT]); 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_text(ext_tree, tvb, offset, length, "Data not decoded yet"); /* * 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_CELL_ID, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_CELL_ID]); 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_text(ext_tree, tvb, offset, length, "Data not decoded yet"); /* * 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_PDU_NO, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_PDU_NO]); 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_text(ext_tree, tvb, offset, length, "Data not decoded yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_BSSGP_CAUSE, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_BSSGP_CAUSE]); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_REQ_MBMS_BEARER_CAP, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_REQ_MBMS_BEARER_CAP]); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_RIM_ROUTING_ADDR_DISC, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_RIM_ROUTING_ADDR_DISC]); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_LIST_OF_SETUP_PFCS, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_LIST_OF_SETUP_PFCS]); 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_text(ext_tree, tvb, offset, length, "Data not decoded yet"); 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 _U_, proto_tree * tree) { guint16 length; proto_tree *ext_tree; proto_item *te; tvbuff_t *next_tvb; guint8 sapi; guint8 xid_par_len; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_PS_HANDOVER_XIP_PAR, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_PS_HANDOVER_XIP_PAR]); 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++; if (sndcpxid_handle) { next_tvb = tvb_new_subset_remaining(tvb, offset); call_dissector(sndcpxid_handle, next_tvb, pinfo, tree); } else proto_tree_add_text(tree, tvb, offset, 0, "Data"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_MS_INF_CHG_REP_ACT, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_MS_INF_CHG_REP_ACT]); 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_text(ext_tree, tvb, offset, length, "Data not decoded yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_DIRECT_TUNNEL_FLGS, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_DIRECT_TUNNEL_FLGS]); 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_text(ext_tree, tvb, offset, length, "Data not decoded yet"); 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); #if 0 /* Fix Dead Store Warning */ offset++; #endif 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_CORRELATION_ID, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_CORRELATION_ID]); 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_text(ext_tree, tvb, offset, length, "Data not decoded yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_BEARER_CONTROL_MODE, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_BEARER_CONTROL_MODE]); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_MBMS_FLOW_ID, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_MBMS_FLOW_ID]); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_MBMS_IP_MCAST_DIST, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_MBMS_IP_MCAST_DIST]); 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_text(ext_tree, tvb, offset, length, "The rest of the data is not dissected yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_MBMS_DIST_ACK, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_MBMS_DIST_ACK]); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_RELIABLE_IRAT_HO_INF, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_RELIABLE_IRAT_HO_INF]); 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_text(ext_tree, tvb, offset, length, "The rest of the data is not dissected yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_RFSP_INDEX, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_RFSP_INDEX]); 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_text(ext_tree, tvb, offset, length, "The rest of the data is not dissected yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, length + 3, "%s", val_to_str_ext_const(GTP_EXT_FQDN, >p_val_ext, "Unknown field")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_FQDN]); proto_tree_add_item(ext_tree, hf_gtp_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_text(ext_tree, tvb, offset + 1, 2, "FQDN length : %u", length); decode_fqdn(tvb, offset + 3, length, ext_tree); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_EVO_ALLO_RETE_P1, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_EVO_ALLO_RETE_P1]); 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_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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_EVO_ALLO_RETE_P2, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_EVO_ALLO_RETE_P2]); 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_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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_EXTENDED_COMMON_FLGS, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_EXTENDED_COMMON_FLGS]); 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_text(ext_tree, tvb, offset, length, "The rest of the data is not dissected yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_UCI, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_UCI]); 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_text(ext_tree, tvb, offset, length, "The rest of the data is not dissected yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_CSG_INF_REP_ACT, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_CSG_INF_REP_ACT]); 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_text(ext_tree, tvb, offset, length, "The rest of the data is not dissected yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_CSG_ID, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_CSG_ID]); 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_text(ext_tree, tvb, offset, length, "The rest of the data is not dissected yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_CMI, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_CMI]); 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_text(ext_tree, tvb, offset, length, "The rest of the data is not dissected yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_AMBR, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_RELIABLE_IRAT_HO_INF]); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_UE_NETWORK_CAP, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_UE_NETWORK_CAP]); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_APN_AMBR_WITH_NSAPI, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_APN_AMBR_WITH_NSAPI]); 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_text(ext_tree, tvb, offset, length, "The rest of the data is not dissected yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_UE_AMBR, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_UE_AMBR]); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_GGSN_BACK_OFF_TIME, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_GGSN_BACK_OFF_TIME]); 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 Timer unit Timer value */ proto_tree_add_item(ext_tree, hf_gtp_ext_ggsn_back_off_time_units, tvb, offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_gtp_ext_ggsn_back_off_timer, tvb, offset, 2, 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_SIG_PRI_IND, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_SIG_PRI_IND]); 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_text(ext_tree, tvb, offset, length, "The rest of the data is not dissected yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_SIG_PRI_IND_W_NSAPI, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_SIG_PRI_IND_W_NSAPI]); 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_text(ext_tree, tvb, offset, length, "The rest of the data is not dissected yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_HIGHER_BR_16MB_FLG, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_HIGHER_BR_16MB_FLG]); 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; /* 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) { guint16 length; proto_tree *ext_tree; proto_item *te; guint32 max_ul; guint32 max_dl; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_MAX_MBR_APN_AMBR, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_MAX_MBR_APN_AMBR]); 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(ext_tree, hf_gtp_max_mbr_apn_ambr_ul, tvb, offset, 4, max_ul, "Max MBR/APN-AMBR for uplink : %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(ext_tree, hf_gtp_max_mbr_apn_ambr_dl, tvb, offset, 4, max_dl, "Max MBR/APN-AMBR for downlink : %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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_ADD_MM_CTX_SRVCC, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_ADD_MM_CTX_SRVCC]); 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_text(ext_tree, tvb, offset, length, "The rest of the data is not dissected yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_ADD_FLGS_SRVCC, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_ADD_FLGS_SRVCC]); 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_text(ext_tree, tvb, offset, length, "The rest of the data is not dissected yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_STN_SR, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_STN_SR]); 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_text(ext_tree, tvb, offset, length, "The rest of the data is not dissected yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_C_MSISDN, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_C_MSISDN]); 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_text(ext_tree, tvb, offset, length, "The rest of the data is not dissected yet"); 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) { guint16 length; proto_tree *ext_tree; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "%s", val_to_str_ext_const(GTP_EXT_EXT_RANAP_CAUSE, >pv1_val_ext, "Unknown")); ext_tree = proto_item_add_subtree(te, ett_gtp_ies[GTP_EXT_EXT_RANAP_CAUSE]); 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_text(ext_tree, tvb, offset, length, "The rest of the data is not dissected yet"); return 3 + length; } /* GPRS: 12.15 * UMTS: 33.015 */ static int decode_gtp_rel_pack(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree) { guint16 length, n, number; proto_tree *ext_tree_rel_pack; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "Sequence numbers of released packets IE"); ext_tree_rel_pack = proto_item_add_subtree(te, ett_gtp_rel_pack); n = 0; while (n < length) { number = tvb_get_ntohs(tvb, offset + 3 + n); proto_tree_add_text(ext_tree_rel_pack, tvb, offset + 3 + n, 2, "%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) { guint16 length, n, number; proto_tree *ext_tree_can_pack; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "Sequence numbers of cancelled packets IE"); ext_tree_can_pack = proto_item_add_subtree(te, ett_gtp_can_pack); n = 0; while (n < length) { number = tvb_get_ntohs(tvb, offset + 3 + n); proto_tree_add_text(ext_tree_can_pack, tvb, offset + 3 + n, 2, "%u", number); n = 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 _U_, proto_tree * tree) { 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 *te, *fmt_item, *ver_item; tvbuff_t *next_tvb; te = proto_tree_add_text(tree, tvb, offset, 1, "%s", val_to_str_ext_const(GTP_EXT_DATA_REQ, >p_val_ext, "Unknown message")); ext_tree = proto_item_add_subtree(te, ett_gtp_ext); offset++; length = tvb_get_ntohs(tvb, offset); proto_tree_add_text(ext_tree, tvb, offset, 2, "Length: %u", length); offset+=2; /* Octet 4 Number of Data Records */ no = tvb_get_guint8(tvb, offset); proto_tree_add_text(ext_tree, tvb, offset, 1, "Number of data records: %u", no); offset++; /* Octet 5 Data Record Format */ format = tvb_get_guint8(tvb, offset); fmt_item = proto_tree_add_text(ext_tree, tvb, offset, 1, "Data record format: %u", format); 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_item = proto_tree_add_text(ext_tree, tvb, offset, 2, "Data record format version: AppId %u Rel %u.%u.0", app_id,rel_id,ver_id); ver_tree = proto_item_add_subtree(ver_item, ett_gtp_cdr_ver); 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); te = proto_tree_add_text(ext_tree, tvb, offset, cdr_length+2, "Data record %d", i + 1); cdr_dr_tree = proto_item_add_subtree(te, ett_gtp_cdr_dr); proto_tree_add_text(cdr_dr_tree, tvb, offset, 2, "Length: %u", cdr_length); offset+=2; proto_tree_add_text(cdr_dr_tree, tvb, offset, cdr_length, "Content"); 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); }else if(rel_id == 8){ dissect_gprscdr_GPRSRecord_PDU(next_tvb, pinfo, cdr_dr_tree); } } 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) { guint16 length, n, number; proto_tree *ext_tree_data_resp; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "Requests responded"); ext_tree_data_resp = proto_item_add_subtree(te, ett_gtp_data_resp); n = 0; while (n < length) { number = tvb_get_ntohs(tvb, offset + 3 + n); proto_tree_add_text(ext_tree_data_resp, tvb, offset + 3 + n, 2, "%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) { guint16 length; guint32 addr_ipv4; struct e_in6_addr addr_ipv6; proto_tree *ext_tree_node_addr; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "Node address: "); ext_tree_node_addr = proto_item_add_subtree(te, ett_gtp_node_addr); proto_tree_add_text(ext_tree_node_addr, tvb, offset + 1, 2, "Node address length: %u", length); switch (length) { case 4: addr_ipv4 = tvb_get_ipv4(tvb, offset + 3); proto_item_append_text(te, "%s", ip_to_str((guint8 *) & addr_ipv4)); proto_tree_add_ipv4(ext_tree_node_addr, hf_gtp_node_ipv4, tvb, offset + 3, 4, addr_ipv4); break; case 16: tvb_get_ipv6(tvb, offset + 3, &addr_ipv6); proto_item_append_text(te, "%s", ip6_to_str((struct e_in6_addr *) &addr_ipv6)); proto_tree_add_ipv6(ext_tree_node_addr, hf_gtp_node_ipv6, tvb, offset + 3, 16, (guint8 *) & addr_ipv6); 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 _U_, proto_tree * tree) { guint16 length, ext_id; proto_tree *ext_tree_priv_ext; proto_item *te; tvbuff_t *next_tvb; te = proto_tree_add_text(tree, tvb, offset, 1, "%s", val_to_str_ext_const(GTP_EXT_PRIV_EXT, >p_val_ext, "Unknown message")); ext_tree_priv_ext = proto_item_add_subtree(te, ett_gtp_ext); 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 = 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); offset = offset + 2; /* * XXX - is this always a text string? Or should it be * displayed as hex data? */ if (length > 2) { proto_tree_add_item(ext_tree_priv_ext, hf_gtp_ext_val, tvb, offset, length - 2, ENC_NA); next_tvb = tvb_new_subset_remaining(tvb, offset); dissector_try_uint(gtp_priv_ext_dissector_table, ext_id, next_tvb, pinfo, ext_tree_priv_ext); } } return 3 + length; } static int decode_gtp_unknown(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree) { proto_tree_add_text(tree, tvb, offset, 1, "Unknown extension header"); return tvb_length_remaining(tvb, offset); } static void dissect_gtp_common(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree) { struct _gtp_hdr gtp_hdr; proto_tree *gtp_tree = NULL, *ext_tree; proto_item *ti = NULL, *tf, *item; int i, offset, length, gtp_prime, checked_field, mandatory; int seq_no = 0; int flow_label = 0; guint8 pdu_no, next_hdr = 0; guint8 ext_hdr_val; guint8 noOfExtHdrs = 0; guint8 ext_hdr_length; gchar *tid_str; guint32 teid = 0; 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; void* pd_save; col_set_str(pinfo->cinfo, COL_PROTOCOL, "GTP"); col_clear(pinfo->cinfo, COL_INFO); /* * Do we have a conversation for this connection? */ conversation = find_or_create_conversation(pinfo); /* * Do we already know this conversation? */ gtp_info = 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 = g_malloc(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; } pd_save = pinfo->private_data; pinfo->private_data = gtp_info; tvb_memcpy(tvb, (guint8 *) & gtp_hdr, 0, 4); if (!(gtp_hdr.flags & 0x10)) gtp_prime = 1; else gtp_prime = 0; switch ((gtp_hdr.flags >> 5) & 0x07) { case 0: gtp_version = 0; break; case 1: gtp_version = 1; break; default: gtp_version = 1; break; } gtp_hdr.length = g_ntohs(gtp_hdr.length); col_add_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(gtp_hdr.message, >p_message_type_ext, "Unknown")); if (tree) { proto_tree *flags_tree; ti = proto_tree_add_item(tree, proto_gtp, tvb, 0, -1, ENC_NA); gtp_tree = proto_item_add_subtree(ti, ett_gtp); tf = proto_tree_add_uint(gtp_tree, hf_gtp_flags, tvb, 0, 1, gtp_hdr.flags); flags_tree = proto_item_add_subtree(tf, ett_gtp_flags); if(gtp_prime == 1) { /* Octet 8 7 6 5 4 3 2 1 * 1 Version | PT| Spare '1 1 1 '| ' 0/1 ' */ proto_tree_add_uint(flags_tree, hf_gtp_prime_flags_ver, tvb, 0, 1, gtp_hdr.flags); proto_tree_add_uint(flags_tree, hf_gtp_flags_pt, tvb, 0, 1, gtp_hdr.flags); proto_tree_add_uint(flags_tree, hf_gtp_flags_spare1, tvb, 0, 1, gtp_hdr.flags); /* 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_item(flags_tree, hf_gtp_flags_hdr_length, tvb, 0, 1, ENC_BIG_ENDIAN); } } else { proto_tree_add_uint(flags_tree, hf_gtp_flags_ver, tvb, 0, 1, gtp_hdr.flags); proto_tree_add_uint(flags_tree, hf_gtp_flags_pt, tvb, 0, 1, gtp_hdr.flags); if(gtp_version == 0) { proto_tree_add_uint(flags_tree, hf_gtp_flags_spare1, tvb, 0, 1, gtp_hdr.flags); proto_tree_add_boolean(flags_tree, hf_gtp_flags_snn, tvb, 0, 1, gtp_hdr.flags); } else { proto_tree_add_uint(flags_tree, hf_gtp_flags_spare2, tvb, 0, 1, gtp_hdr.flags); proto_tree_add_boolean(flags_tree, hf_gtp_flags_e, tvb, 0, 1, gtp_hdr.flags); proto_tree_add_boolean(flags_tree, hf_gtp_flags_s, tvb, 0, 1, gtp_hdr.flags); proto_tree_add_boolean(flags_tree, hf_gtp_flags_pn, tvb, 0, 1, gtp_hdr.flags); } } proto_tree_add_uint(gtp_tree, hf_gtp_message_type, tvb, 1, 1, gtp_hdr.message); proto_tree_add_uint(gtp_tree, hf_gtp_length, tvb, 2, 2, gtp_hdr.length); } offset = 4; if (gtp_prime) { seq_no = tvb_get_ntohs(tvb, offset); 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, step past it */ if( (gtp_version == 0) && ((gtp_hdr.flags & 0x01) == 0) ) { offset = GTPv0_HDR_LENGTH; } } else { switch (gtp_version) { case 0: seq_no = tvb_get_ntohs(tvb, offset); 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; break; case 1: teid = tvb_get_ntohl(tvb, offset); proto_tree_add_uint(gtp_tree, hf_gtp_teid, tvb, offset, 4, teid); offset += 4; /* Are sequence number/N-PDU Number/extension header present? */ if (gtp_hdr.flags & 0x07) { seq_no = tvb_get_ntohs(tvb, offset); proto_tree_add_uint(gtp_tree, hf_gtp_seq_number, tvb, offset, 2, seq_no); offset += 2; pdu_no = tvb_get_guint8(tvb, offset); proto_tree_add_uint(gtp_tree, hf_gtp_npdu_number, tvb, offset, 1, pdu_no); offset++; next_hdr = tvb_get_guint8(tvb, offset); /* Don't add extension header, we'll add a subtree for that */ /* proto_tree_add_uint(gtp_tree, hf_gtp_next, tvb, offset, 1, next_hdr); */ offset++; /* Change to while? */ if (next_hdr) { /* TODO Add support for more than one extension header */ noOfExtHdrs++; tf = proto_tree_add_uint(gtp_tree, hf_gtp_ext_hdr, tvb, offset, 4, next_hdr); ext_tree = proto_item_add_subtree(tf, ett_gtp_ext_hdr); /* 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. */ if (next_hdr == GTP_EXT_HDR_PDCP_SN) { /* First byte is length (should be 1) */ ext_hdr_length = tvb_get_guint8(tvb, offset); if (ext_hdr_length != 1) { expert_add_info_format(pinfo, ext_tree, PI_PROTOCOL, PI_WARN, "The length field for the PDCP SN Extension header should be 1."); } proto_tree_add_item(ext_tree, hf_gtp_ext_hdr_length, tvb, offset,1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ext_tree, hf_gtp_ext_hdr_pdcpsn, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; /* Last is next_hdr */ next_hdr = tvb_get_guint8(tvb, offset); item = proto_tree_add_item(ext_tree, hf_gtp_ext_hdr_next, tvb, offset, 1, ENC_BIG_ENDIAN); if (next_hdr) { expert_add_info_format(pinfo, item, PI_UNDECODED, PI_WARN, "Can't decode more than one extension header."); } offset++; } } } break; default: break; } } if (gtp_hdr.message != GTP_MSG_TPDU) { /* TODO: This code should be cleaned up to handle more than one * header and possibly display the header content */ if (next_hdr) { switch (next_hdr) { case 1: /* MBMS support indication */ proto_tree_add_text(gtp_tree, tvb, offset, 4, "[--- MBMS support indication header ---]"); offset += 3; break; case 2: /* MS Info Change Reporting support indication */ proto_tree_add_text(gtp_tree, tvb, offset, 4, "[--- MS Info Change Reporting support indication header ---]"); offset += 3; break; case 0xc0: /* PDCP PDU number */ proto_tree_add_text(gtp_tree, tvb, offset, 4, "[--- PDCP PDU number header ---]"); offset += 3; break; case 0xc1: /* Suspend Request */ proto_tree_add_text(gtp_tree, tvb, offset, 4, "[--- Suspend Request header ---]"); offset += 3; break; case 0xc2: /* Suspend Response */ proto_tree_add_text(gtp_tree, tvb, offset, 4, "[--- Suspend Response header ---]"); offset += 3; break; default: proto_tree_add_text(gtp_tree, tvb, offset, 4, "[--- Unknown extension header ---]"); offset += 3; break; } next_hdr = tvb_get_guint8(tvb, offset); proto_tree_add_uint(gtp_tree, hf_gtp_next, tvb, offset, 1, next_hdr); offset++; } /* proto_tree_add_text(gtp_tree, tvb, 0, 0, "[--- end of GTP header, beginning of extension headers ---]");*/ length = tvb_length(tvb); mandatory = 0; /* check order of GTP fields against ETSI */ for (;;) { if (offset >= length) break; if (next_hdr) { ext_hdr_val = next_hdr; next_hdr = 0; } else ext_hdr_val = tvb_get_guint8(tvb, offset); if (g_gtp_etsi_order) { checked_field = check_field_presence(gtp_hdr.message, ext_hdr_val, (int *) &mandatory); switch (checked_field) { case -2: proto_tree_add_text(gtp_tree, tvb, 0, 0, "[WARNING] message not found"); break; case -1: proto_tree_add_text(gtp_tree, tvb, 0, 0, "[WARNING] field not present"); break; case 0: break; default: proto_tree_add_text(gtp_tree, tvb, offset, 1, "[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); } /*Use sequence number to track Req/Resp pairs*/ if (seq_no) { gcrp = gtp_match_response(tvb, pinfo, gtp_tree, seq_no, gtp_hdr.message); /*pass packet to tap for response time reporting*/ if (gcrp) { tap_queue_packet(gtp_tap,pinfo,gcrp); } } } proto_item_set_len (ti, offset); if ((gtp_hdr.message == GTP_MSG_TPDU) && g_gtp_tpdu) { if (gtp_prime) offset = 6; else if (gtp_version == 1) { if (gtp_hdr.flags & 0x07) { offset = 11; if (tvb_get_guint8(tvb, offset) == 0) offset++; } else offset = 8; } else offset = 20; if(gtp_hdr.length > offset){ proto_tree_add_text(tree, tvb, offset, gtp_hdr.length, "T-PDU Data %u bytes", gtp_hdr.length); } /* Can only handle one extension header type... */ if (noOfExtHdrs != 0) offset+= 1 + noOfExtHdrs*4; 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, ">"); } #if 0 else { if (gtp_prime) offset = 6; else if (gtp_version == 1) { if (gtp_hdr.flags & 0x07) { offset = 11; if (tvb_get_guint8(tvb, offset) == 0) offset++; } else offset = 8; } else offset = 20; } #endif pinfo->private_data = pd_save; } static void dissect_gtpprim(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree) { dissect_gtp_common(tvb, pinfo, tree); } static void dissect_gtp(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree) { guint8 version; /* * 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) { /* GTPv2-C 3GPP TS 29.274 */ if (gtpv2_handle) { call_dissector(gtpv2_handle, tvb, pinfo, tree); return; } } if(version > 2) { proto_tree_add_text(tree, tvb, 0, -1, "No WS dissector for GTP version %u %s", version, val_to_str_const(version, ver_types, "Unknown")); return; } dissect_gtp_common(tvb, pinfo, tree); } static void gtp_reinit(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; g_free(gtp_info); gtp_info = next; } gtp_info_items = NULL; } void proto_register_gtp(void) { module_t *gtp_module; 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, NULL, 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_UINT8, BASE_HEX, VALS(next_extension_header_fieldvals), 0, NULL, HFILL} }, {&hf_gtp_ext_hdr_next, { "Next extension header", "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_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_imsi, { "IMSI", "gtp.imsi", FT_STRING, BASE_NONE, NULL, 0, "International Mobile Subscriber Identity number", 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_next, { "Next extension header type", "gtp.next", FT_UINT8, BASE_HEX, VALS(next_extension_header_fieldvals), 0, 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_DEC, 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_pci, {"Pre-emption Capability (PCI)", "gtp.qos_arp_pci", FT_BOOLEAN, 8, TFS(&tfs_disabled_enabled), 0x40, NULL, HFILL} }, { &hf_gtp_qos_arp_pl, {"Priority Level", "gtp.qos_arp_pl", FT_UINT8, BASE_DEC, NULL, 0x3c, NULL, HFILL} }, { &hf_gtp_qos_arp_pvi, {"Pre-emption Vulnerability (PVI)", "gtp.qos_arp_pvi", FT_BOOLEAN, 8, 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_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_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_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, NULL, 0x0, NULL, HFILL} }, {&hf_gtp_ext_imeisv, { "IMEI(SV)", "gtp.ext_imeisv", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL} }, { &hf_gtp_targetRNC_ID, { "targetRNC-ID", "gtp.targetRNC_ID", FT_NONE, BASE_NONE, 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_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_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} }, }; /* Setup protocol subtree array */ #define GTP_NUM_INDIVIDUAL_ELEMS 27 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_net_cap; ett_gtp_array[17] = &ett_gtp_can_pack; ett_gtp_array[18] = &ett_gtp_proto; ett_gtp_array[19] = &ett_gtp_gsn_addr; ett_gtp_array[20] = &ett_gtp_tft; ett_gtp_array[21] = &ett_gtp_tft_pf; ett_gtp_array[22] = &ett_gtp_tft_flags; ett_gtp_array[23] = &ett_gtp_rab_setup; ett_gtp_array[24] = &ett_gtp_hdr_list; ett_gtp_array[25] = &ett_gtp_rel_pack; ett_gtp_array[26] = &ett_gtp_node_addr; 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"); proto_register_field_array(proto_gtp, hf_gtp, array_length(hf_gtp)); proto_register_subtree_array(ett_gtp_array, array_length(ett_gtp_array)); 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_bool_preference(gtp_module, "dissect_tpdu", "Dissect T-PDU", "Dissect T-PDU", &g_gtp_tpdu); 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"); /* 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); register_dissector("gtp", dissect_gtp, proto_gtp); register_dissector("gtpprim", dissect_gtpprim, proto_gtp); gtp_priv_ext_dissector_table = register_dissector_table("gtp.priv_ext", "GTP PRIVATE EXT", FT_UINT16, BASE_DEC); gtp_cdr_fmt_dissector_table = register_dissector_table("gtp.cdr_fmt", "GTP DATA RECORD TYPE", FT_UINT16, BASE_DEC); register_init_routine(gtp_reinit); gtp_tap=register_tap("gtp"); } /* 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_prim_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_prim_handle = find_dissector("gtpprim"); 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("ip"); ipv6_handle = find_dissector("ipv6"); ppp_handle = find_dissector("ppp"); data_handle = find_dissector("data"); gtpcdr_handle = find_dissector("gtpcdr"); sndcpxid_handle = find_dissector("sndcpxid"); gtpv2_handle = find_dissector("gtpv2"); bssgp_handle = find_dissector("bssgp"); bssap_pdu_type_table = find_dissector_table("bssap.pdu_type"); /* AVP Code: 5 3GPP-GPRS Negotiated QoS profile */ dissector_add_uint("diameter.3gpp", 5, new_create_dissector_handle(dissect_diameter_3gpp_qosprofile, proto_gtp)); /* AVP Code: 903 MBMS-Service-Area */ dissector_add_uint("diameter.3gpp", 903, new_create_dissector_handle(dissect_gtp_3gpp_mbms_service_area, proto_gtp)); /* AVP Code: 904 MBMS-Session-Duration */ dissector_add_uint("diameter.3gpp", 904, new_create_dissector_handle(dissect_gtp_mbms_ses_dur, proto_gtp)); /* AVP Code: 911 MBMS-Time-To-Data-Transfer */ dissector_add_uint("diameter.3gpp", 911, new_create_dissector_handle(dissect_gtp_mbms_time_to_data_tr, proto_gtp)); Initialized = TRUE; } else { dissector_delete_uint("udp.port", gtpv0_port, gtp_prim_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_prim_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_prim_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_prim_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: */