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wireshark/epan/dissectors/packet-gtp.c

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/* packet-gtp.c
*
* $Id$
*
* Routines for GTP dissection
* Copyright 2001, Michal Melerowicz <michal.melerowicz@nokia.com>
* Nicolas Balkota <balkota@mac.com>
*
* Updates and corrections:
* Copyright 2006 - 2009, Anders Broman <anders.broman@ericsson.com>
*
* Added Bearer control mode dissection:
* Copyright 2011, Grzegorz Szczytowski <grzegorz.szczytowski@gmail.com>
*
* Updates and corrections:
* Copyright 2011, Anders Broman <anders.broman@ericsson.com>
*
* PDCP PDU number extension header support added by Martin Isaksson <martin.isaksson@ericsson.com>
*
* Control Plane Request-Response tracking code Largely based on similar routines in
* packet-ldap.c by Ronnie Sahlberg
* Added by Kari Tiirikainen <kari.tiirikainen@nsn.com>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
* Ref: 3GPP TS 29.060
* http://www.3gpp.org/ftp/Specs/html-info/29060.htm
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <epan/conversation.h>
#include <epan/packet.h>
#include <epan/prefs.h>
#include <epan/expert.h>
#include <epan/sminmpec.h>
#include <epan/asn1.h>
#include <epan/tap.h>
#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-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_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_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_msisdn = -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_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_mcc = -1;
static int hf_gtp_rai_mnc = -1;
static int hf_gtp_rai_rac = -1;
static int hf_gtp_rai_lac = -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_unknown = -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_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_spare = -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;
/* 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_rai = -1;
static gint ett_gtp_qos = -1;
static gint ett_gtp_auth_tri = -1;
static gint ett_gtp_flow_ii = -1;
static gint ett_gtp_rab_cntxt = -1;
static gint ett_gtp_rp = -1;
static gint ett_gtp_pkt_flow_id = -1;
static gint ett_gtp_chrg_char = -1;
static gint ett_gtp_user = -1;
static gint ett_gtp_mm = -1;
static gint ett_gtp_trip = -1;
static gint ett_gtp_quint = -1;
static gint ett_gtp_pdp = -1;
static gint ett_gtp_apn = -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_chrg_addr = -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_priv_ext = -1;
static gint ett_gtp_net_cap = -1;
static gint ett_gtp_ext_tree_apn_res = -1;
static gint ett_gtp_ext_rat_type = -1;
static gint ett_gtp_ext_imeisv = -1;
static gint ett_gtp_ext_ran_tr_cont = -1;
static gint ett_gtp_ext_pdp_cont_prio = -1;
static gint ett_gtp_ext_ssgn_no = -1;
static gint ett_gtp_ext_rab_setup_inf = -1;
static gint ett_gtp_ext_common_flgs = -1;
static gint ett_gtp_ext_usr_loc_inf = -1;
static gint ett_gtp_ext_ms_time_zone = -1;
static gint ett_gtp_ext_camel_chg_inf_con = -1;
static gint ett_GTP_EXT_MBMS_UE_CTX = -1;
static gint ett_gtp_ext_tmgi = -1;
static gint ett_gtp_tmgi = -1;
static gint ett_gtp_ext_rim_ra = -1;
static gint ett_gtp_ext_mbms_prot_conf_opt = -1;
static gint ett_gtp_ext_mbms_sa = -1;
static gint ett_gtp_ext_bms_ses_dur = -1;
static gint ett_gtp_ext_src_rnc_pdp_ctx_inf = -1;
static gint ett_gtp_ext_add_trs_inf = -1;
static gint ett_gtp_ext_hop_count = -1;
static gint ett_gtp_ext_sel_plmn_id = -1;
static gint ett_gtp_ext_mbms_ses_id = -1;
static gint ett_gtp_ext_mbms_2g_3g_ind = -1;
static gint ett_gtp_ext_enh_nsapi = -1;
static gint ett_gtp_ext_ad_mbms_trs_inf = -1;
static gint ett_gtp_ext_mbms_ses_id_rep_no = -1;
static gint ett_gtp_ext_mbms_time_to_data_tr = -1;
static gint ett_gtp_ext_ps_ho_req_ctx = -1;
static gint ett_gtp_ext_bss_cont = -1;
static gint ett_gtp_ext_cell_id = -1;
static gint ett_gtp_ext_pdu_no = -1;
static gint ett_gtp_ext_bssgp_cause = -1;
static gint ett_gtp_ext_ra_prio_lcs = -1;
static gint ett_gtp_ext_ps_handover_xid = -1;
static gint ett_gtp_target_id = -1;
static gint ett_gtp_utran_cont = -1;
static gint ett_gtp_bcm = -1;
static gint ett_gtp_cdr_ver = -1;
static gint ett_gtp_cdr_dr = -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 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 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_CREATE_AA_PDP_REQ, "Create AA PDP Context Request"},
{GTP_MSG_CREATE_AA_PDP_RESP, "Create AA PDP Context Response"},
{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.
*/
{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.
*/
{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.
*/
{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.
*/
{GTP_MSG_END_MARKER, "End Marker"},
{GTP_MSG_TPDU, "T-PDU"},
{0, NULL}
};
static value_string_ext message_type_ext = VALUE_STRING_EXT_INIT(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 */
/* 3G 185 TLV MBMS Flow Identifier 7.7.84 */
/* 3G 186 TLV MBMS IP Multicast Distribution 7.7.85 */
/* 3G 187 TLV MBMS Distribution Acknowledgement 7.7.86 */
/* 3G 188 TLV Reliable INTER RAT HANDOVER INFO 7.7.87 */
/* 3G 189 TLV RFSP Index 7.7.88 */
/* 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 */
/* 3G 192 TLV Evolved Allocation/Retention Priority II 7.7.92 */
/* 3G 193 TLV Extended Common Flags 7.7.93 */
/* 3G 194 TLV User CSG Information (UCI) 7.7.94 */
/* 3G 195 TLV CSG Information Reporting Action 7.7.95 */
/* 3G 196 TLV CSG ID 7.7.96 */
/* 3G 197 TLV CSG Membership Indication (CMI) 7.7.97 */
/* 3G 198 TLV Aggregate Maximum Bit Rate (AMBR) 7.7.98 */
/* 3G 199 TLV UE Network Capability 7.7.99 */
/* 3G 200 TLV UE-AMBR 7.7.100 */
/* 3G 201 TLV APN-AMBR with NSAPI 7.7.101 */
/* 202-238 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"},
{GTP_EXT_QOS_GPRS, "Quality of Service"},
{GTP_EXT_REORDER, "Reorder required"},
{GTP_EXT_AUTH_TRI, "Authentication triplets"},
{GTP_EXT_MAP_CAUSE, "MAP cause"},
{GTP_EXT_PTMSI_SIG, "P-TMSI signature"},
{GTP_EXT_MS_VALID, "MS validated"},
{GTP_EXT_RECOVER, "Recovery"},
{GTP_EXT_SEL_MODE, "Selection mode"},
{GTP_EXT_16, "Flow label data I"},
{GTP_EXT_FLOW_LABEL, "Flow label data I"},
{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 */
{GTPv1_EXT_MS_REASON, "MS not reachable reason"}, /* 3G */
{GTP_EXT_TR_COMM, "Packet transfer command"}, /* charging */
{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 */
{GTP_EXT_PS_HANDOVER_XIP_PAR, "PS Handover XID Parameters"}, /* 7.7.79 */
{GTP_EXT_MS_INF_CHG_REP_ACT, "MS Info Change Reporting Action"}, /* 7.7.80 */
{GTP_EXT_DIRECT_TUNNEL_FLGS, "Direct Tunnel Flags"}, /* 7.7.81 */
{GTP_EXT_CORRELATION_ID, "Correlation-ID"}, /* 7.7.82 */
{GTP_EXT_BEARER_CONTROL_MODE, "Bearer Control Mode"}, /* 7.7.83 */
{185, "MBMS Flow Identifier"}, /* 7.7.84 */
{186, "MBMS IP Multicast Distribution"}, /* 7.7.85 */
{187, "MBMS Distribution Acknowledgement"}, /* 7.7.86 */
{188, "Reliable INTER RAT HANDOVER INFO"}, /* 7.7.87 */
{189, "RFSP Index"}, /* 7.7.88 */
{190, "Fully Qualified Domain Name (FQDN)"}, /* 7.7.90 */
{GTP_EXT_EVO_ALLO_RETE_P1, "Evolved Allocation/Retention Priority I"}, /* 7.7.91 */
{192, "Evolved Allocation/Retention Priority II"}, /* 7.7.92 */
{193, "Extended Common Flags"}, /* 7.7.93 */
{194, "User CSG Information (UCI)"}, /* 7.7.94 */
{195, "CSG Information Reporting Action"}, /* 7.7.95 */
{196, "CSG ID"}, /* 7.7.96 */
{197, "CSG Membership Indication (CMI)"}, /* 7.7.97 */
{198, "Aggregate Maximum Bit Rate (AMBR)"}, /* 7.7.98 */
{199, "UE Network Capability"}, /* 7.7.99 */
{200, "UE-AMBR"}, /* 7.7.100 */
{201, "APN-AMBR with NSAPI"}, /* 7.7.101 */
{GTP_EXT_REL_PACK, "Sequence numbers of released packets IE"}, /* charging */
{GTP_EXT_CAN_PACK, "Sequence numbers of canceled packets IE"}, /* charging */
{GTP_EXT_CHRG_ADDR, "Charging Gateway address"},
{GTP_EXT_DATA_REQ, "Data record packet"}, /* charging */
{GTP_EXT_DATA_RESP, "Requests responded"}, /* charging */
{GTP_EXT_NODE_ADDR, "Address of recommended node"}, /* charging */
{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[] = {
{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"},
{GTP_EXT_QOS_GPRS, "Quality of Service"},
{GTP_EXT_REORDER, "Reorder required"},
{GTP_EXT_AUTH_TRI, "Authentication triplets"},
{GTP_EXT_MAP_CAUSE, "MAP cause"},
{GTP_EXT_PTMSI_SIG, "P-TMSI signature"},
{GTP_EXT_MS_VALID, "MS validated"},
{GTP_EXT_RECOVER, "Recovery"},
{GTP_EXT_SEL_MODE, "Selection mode"},
{GTP_EXT_TEID, "Tunnel Endpoint Identifier Data I"}, /* 3G */
{GTP_EXT_TEID_CP, "Tunnel Endpoint Identifier Data Control Plane"}, /* 3G */
{GTP_EXT_TEID_II, "Tunnel Endpoint Identifier Data II"}, /* 3G */
{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 */
{GTPv1_EXT_MS_REASON, "MS not reachable reason"}, /* 3G */
{GTP_EXT_TR_COMM, "Packet transfer command"}, /* charging */
{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_REL_PACK, "Sequence numbers of released packets IE"}, /* charging */
{GTP_EXT_CAN_PACK, "Sequence numbers of canceled packets IE"}, /* charging */
{GTP_EXT_CHRG_ADDR, "Charging Gateway address"},
{GTP_EXT_DATA_REQ, "Data record packet"}, /* charging */
{GTP_EXT_DATA_RESP, "Requests responded"}, /* charging */
{GTP_EXT_NODE_ADDR, "Address of recommended node"}, /* charging */
{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"},
/* For future use 6-48 */
/* 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"},
/* For future use 229-240 */
/* 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}
};
static 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_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_evolved_allc_rtn_p1(tvbuff_t * tvb, int offset, packet_info * pinfo, 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_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[] = {
{GTP_EXT_CAUSE, decode_gtp_cause},
{GTP_EXT_IMSI, decode_gtp_imsi},
{GTP_EXT_RAI, decode_gtp_rai},
{GTP_EXT_TLLI, decode_gtp_tlli},
{GTP_EXT_PTMSI, decode_gtp_ptmsi},
{GTP_EXT_QOS_GPRS, decode_gtp_qos_gprs},
{GTP_EXT_REORDER, decode_gtp_reorder},
{GTP_EXT_AUTH_TRI, decode_gtp_auth_tri},
{GTP_EXT_MAP_CAUSE, decode_gtp_map_cause},
{GTP_EXT_PTMSI_SIG, decode_gtp_ptmsi_sig},
{GTP_EXT_MS_VALID, decode_gtp_ms_valid},
{GTP_EXT_RECOVER, decode_gtp_recovery},
{GTP_EXT_SEL_MODE, decode_gtp_sel_mode},
{GTP_EXT_16, decode_gtp_16},
{GTP_EXT_17, decode_gtp_17},
{GTP_EXT_18, decode_gtp_18},
{GTP_EXT_19, decode_gtp_19},
{GTP_EXT_NSAPI, decode_gtp_nsapi},
{GTP_EXT_RANAP_CAUSE, decode_gtp_ranap_cause},
{GTP_EXT_RAB_CNTXT, decode_gtp_rab_cntxt},
{GTP_EXT_RP_SMS, decode_gtp_rp_sms},
{GTP_EXT_RP, decode_gtp_rp},
{GTP_EXT_PKT_FLOW_ID, decode_gtp_pkt_flow_id},
{GTP_EXT_CHRG_CHAR, decode_gtp_chrg_char},
{GTP_EXT_TRACE_REF, decode_gtp_trace_ref},
{GTP_EXT_TRACE_TYPE, decode_gtp_trace_type},
{GTPv1_EXT_MS_REASON, decode_gtp_ms_reason},
{GTP_EXT_TR_COMM, decode_gtp_tr_comm},
{GTP_EXT_CHRG_ID, decode_gtp_chrg_id},
{GTP_EXT_USER_ADDR, decode_gtp_user_addr},
{GTP_EXT_MM_CNTXT, decode_gtp_mm_cntxt},
{GTP_EXT_PDP_CNTXT, decode_gtp_pdp_cntxt},
{GTP_EXT_APN, decode_gtp_apn},
{GTP_EXT_PROTO_CONF, decode_gtp_proto_conf},
{GTP_EXT_GSN_ADDR, decode_gtp_gsn_addr},
{GTP_EXT_MSISDN, decode_gtp_msisdn},
{GTP_EXT_QOS_UMTS, decode_gtp_qos_umts}, /* 3G */
{GTP_EXT_AUTH_QUI, decode_gtp_auth_qui}, /* 3G */
{GTP_EXT_TFT, decode_gtp_tft}, /* 3G */
{GTP_EXT_TARGET_ID, decode_gtp_target_id}, /* 3G */
{GTP_EXT_UTRAN_CONT, decode_gtp_utran_cont}, /* 3G */
{GTP_EXT_RAB_SETUP, decode_gtp_rab_setup}, /* 3G */
{GTP_EXT_HDR_LIST, decode_gtp_hdr_list}, /* 3G */
{GTP_EXT_TRIGGER_ID, decode_gtp_trigger_id}, /* 3G */
{GTP_EXT_OMC_ID, decode_gtp_omc_id}, /* 3G */
/* TS 29 060 V6.11.0 */
{GTP_EXT_RAN_TR_CONT, decode_gtp_ran_tr_cont}, /* 7.7.43 */
{GTP_EXT_PDP_CONT_PRIO, decode_gtp_pdp_cont_prio}, /* 7.7.45 */
{GTP_EXT_ADD_RAB_SETUP_INF, decode_gtp_add_rab_setup_inf}, /* 7.7.45A */
{GTP_EXT_SSGN_NO, decode_gtp_ssgn_no}, /* 7.7.47 */
{GTP_EXT_COMMON_FLGS, decode_gtp_common_flgs}, /* 7.7.48 */
{GTP_EXT_APN_RES, decode_gtp_apn_res}, /* 3G */
{GTP_EXT_RA_PRIO_LCS, decode_gtp_ra_prio_lcs}, /* 7.7.25B */
{GTP_EXT_RAT_TYPE, decode_gtp_rat_type}, /* 3G */
{GTP_EXT_USR_LOC_INF, decode_gtp_usr_loc_inf}, /* 7.7.51 */
{GTP_EXT_MS_TIME_ZONE, decode_gtp_ms_time_zone}, /* 7.7.52 */
{GTP_EXT_IMEISV, decode_gtp_imeisv}, /* 3G 7.7.53 */
{GTP_EXT_CAMEL_CHG_INF_CON, decode_gtp_camel_chg_inf_con}, /* 7.7.54 */
{GTP_EXT_MBMS_UE_CTX, decode_gtp_mbms_ue_ctx}, /* 7.7.55 */
{GTP_EXT_TMGI, decode_gtp_tmgi}, /* 7.7.56 */
{GTP_EXT_RIM_RA, decode_gtp_rim_ra}, /* 7.7.57 */
{GTP_EXT_MBMS_PROT_CONF_OPT, decode_gtp_mbms_prot_conf_opt}, /* 7.7.58 */
{GTP_EXT_MBMS_SA, decode_gtp_mbms_sa}, /* 7.7.60 */
{GTP_EXT_SRC_RNC_PDP_CTX_INF, decode_gtp_src_rnc_pdp_ctx_inf}, /* 7.7.61 */
{GTP_EXT_ADD_TRS_INF, decode_gtp_add_trs_inf}, /* 7.7.62 */
{GTP_EXT_HOP_COUNT, decode_gtp_hop_count}, /* 7.7.63 */
{GTP_EXT_SEL_PLMN_ID, decode_gtp_sel_plmn_id}, /* 7.7.64 */
{GTP_EXT_MBMS_SES_ID, decode_gtp_mbms_ses_id}, /* 7.7.65 */
{GTP_EXT_MBMS_2G_3G_IND, decode_gtp_mbms_2g_3g_ind}, /* 7.7.66 */
{GTP_EXT_ENH_NSAPI, decode_gtp_enh_nsapi}, /* 7.7.67 */
{GTP_EXT_MBMS_SES_DUR, decode_gtp_mbms_ses_dur}, /* 7.7.59 */
{GTP_EXT_ADD_MBMS_TRS_INF, decode_gtp_add_mbms_trs_inf}, /* 7.7.68 */
{GTP_EXT_MBMS_SES_ID_REP_NO, decode_gtp_mbms_ses_id_rep_no}, /* 7.7.69 */
{GTP_EXT_MBMS_TIME_TO_DATA_TR, decode_gtp_mbms_time_to_data_tr}, /* 7.7.70 */
{GTP_EXT_PS_HO_REQ_CTX, decode_gtp_ps_ho_req_ctx}, /* 7.7.71 */
{GTP_EXT_BSS_CONT, decode_gtp_bss_cont}, /* 7.7.72 */
{GTP_EXT_CELL_ID, decode_gtp_cell_id}, /* 7.7.73 */
{GTP_EXT_PDU_NO, decode_gtp_pdu_no}, /* 7.7.74 */
{GTP_EXT_BSSGP_CAUSE, decode_gtp_bssgp_cause}, /* 7.7.75 */
{GTP_EXT_REQ_MBMS_BEARER_CAP, decode_gtp_mbms_bearer_cap}, /* 7.7.76 */
{GTP_EXT_RIM_ROUTING_ADDR_DISC, decode_gtp_rim_ra_disc}, /* 7.7.77 */
{GTP_EXT_LIST_OF_SETUP_PFCS, decode_gtp_lst_set_up_pfc}, /* 7.7.78 */
{GTP_EXT_PS_HANDOVER_XIP_PAR, decode_gtp_ps_handover_xid}, /* 7.7.79 */
{GTP_EXT_MS_INF_CHG_REP_ACT, decode_gtp_ms_inf_chg_rep_act}, /* 7.7.80 */
{GTP_EXT_DIRECT_TUNNEL_FLGS, decode_gtp_direct_tnl_flg}, /* 7.7.81 */
{GTP_EXT_CORRELATION_ID, decode_gtp_corrl_id}, /* 7.7.82 */
{GTP_EXT_BEARER_CONTROL_MODE, decode_gtp_bearer_cntrl_mod}, /* 7.7.83 */
{GTP_EXT_EVO_ALLO_RETE_P1, decode_gtp_evolved_allc_rtn_p1}, /* 7.7.91 */
{GTP_EXT_REL_PACK, decode_gtp_rel_pack}, /* charging */
{GTP_EXT_CAN_PACK, decode_gtp_can_pack}, /* charging */
{GTP_EXT_CHRG_ADDR, decode_gtp_chrg_addr},
{GTP_EXT_DATA_REQ, decode_gtp_data_req}, /* charging */
{GTP_EXT_DATA_RESP, decode_gtp_data_resp}, /* charging */
{GTP_EXT_NODE_ADDR, decode_gtp_node_addr},
{GTP_EXT_PRIV_EXT, decode_gtp_priv_ext},
{0, decode_gtp_unknown}
};
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
j++;
if (bits8to5 <= 9)
str[j++] = BCD2CHAR(bits8to5);
else
j++;
}
str[j] = '\0';
return str;
}
static gchar *
msisdn_to_str(tvbuff_t *tvb, gint offset, int len)
{
static gchar str[18] = "+ ";
guint8 bits8to5, bits4to1;
int i, j;
guint ad;
for (i = j = 1; i < MIN(len, 9); i++) {
ad = tvb_get_guint8(tvb, offset + i);
bits8to5 = hi_nibble(ad);
bits4to1 = lo_nibble(ad);
if (bits4to1 <= 9)
str[j++] = BCD2CHAR(bits4to1);
else
j++;
if (bits8to5 <= 9)
str[j++] = BCD2CHAR(bits8to5);
else
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_CREATE_AA_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_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_AA_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_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 = k;
return key->seq_nr;
}
static gint gtp_sn_equal_matched(gconstpointer k1, gconstpointer k2)
{
const gtp_msg_hash_t *key1 = k1;
const gtp_msg_hash_t *key2 = 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 = k1;
const gtp_msg_hash_t *key2 = 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:;
break;
}
gcrp = 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=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_alloc(sizeof(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=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
*/
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;
guint8 byte[3];
guint16 mnc, mcc;
te = proto_tree_add_text(tree, tvb, offset, 1, "%s", val_to_str_ext_const(GTP_EXT_RAI, &gtp_val_ext, "Unknown message"));
ext_tree_rai = proto_item_add_subtree(te, ett_gtp_rai);
byte[0] = tvb_get_guint8(tvb, offset + 1);
byte[1] = tvb_get_guint8(tvb, offset + 2);
byte[2] = tvb_get_guint8(tvb, offset + 3);
mcc = (byte[0] & 0x0F) * 100 + ((byte[0] & 0xF0) >> 4) * 10 + (byte[1] & 0x0F);
if ((byte[1] & 0xF0) == 0xF0)
mnc = (byte[2] & 0x0F) * 10 + ((byte[2] & 0xF0) >> 4);
else
mnc = (byte[2] & 0x0F) * 100 + ((byte[2] & 0xF0) >> 4) * 10 + ((byte[1] & 0xF0) >> 4);
proto_tree_add_uint(ext_tree_rai, hf_gtp_rai_mcc, tvb, offset + 1, 2, mcc);
proto_tree_add_uint(ext_tree_rai, hf_gtp_rai_mnc, tvb, offset + 2, 2, mnc);
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, page 47
*/
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, page 47
*/
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, page 47
*/
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, &gtp_val_ext, "Unknown message"));
ext_tree_auth_tri = proto_item_add_subtree(te, ett_gtp_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, page 49
*/
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, page 49
*/
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, &gtp_val_ext, "Unknown message"));
ext_tree_flow_ii = proto_item_add_subtree(te, ett_gtp_flow_ii);
proto_tree_add_uint(ext_tree_flow_ii, hf_gtp_nsapi, tvb, offset + 1, 1, tvb_get_guint8(tvb, offset + 1) & 0x0F);
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, &gtpv1_val_ext, "Unknown message"));
ext_tree_flow_ii = proto_item_add_subtree(te, ett_gtp_flow_ii);
proto_tree_add_uint(ext_tree_flow_ii, hf_gtp_nsapi, tvb, offset + 1, 1, tvb_get_guint8(tvb, offset + 1) & 0x0F);
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;
nsapi = tvb_get_guint8(tvb, offset + 1) & 0x0F;
proto_tree_add_uint(tree, hf_gtp_nsapi, tvb, offset, 2, 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, &gtp_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, &gtp_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, &gtp_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, &gtp_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, &gtp_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, &gtp_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)
{
guint8 nsapi;
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, &gtp_val_ext, "Unknown message"));
ext_tree_rab_cntxt = proto_item_add_subtree(te, ett_gtp_rab_cntxt);
nsapi = tvb_get_guint8(tvb, offset + 1) & 0x0F;
proto_tree_add_uint(ext_tree_rab_cntxt, hf_gtp_nsapi, tvb, offset + 1, 1, nsapi);
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_uint(ext_tree_pkt_flow_id, hf_gtp_nsapi, tvb, offset + 1, 1, nsapi);
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, &gtp_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, &gtp_val_ext, "Unknown message"), chrg_char); */
ext_tree_chrg_char = proto_item_add_subtree(te, ett_gtp_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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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, &gtp_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_user);
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, &gtp_val_ext, "Unknown message"));
ext_tree_mm = proto_item_add_subtree(te, ett_gtp_mm);
/* 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;
proto_item *te;
int mss, mu, md, gu, gd;
/* 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;
/* In RADIUS messages the QoS has a version field of two octets prepended.
* As of 29.061 v.3.a.0, there is an hyphen between "Release Indicator" and
* <release specific QoS IE UTF-8 encoding>. Even if it sounds rather
* inconsistent and unuseful, I will check hyphen presence here and
* will signal its presence.
* */
guint8 hyphen;
/* Will keep the value that will be returned
* */
int retval = 0;
switch (type) {
case 1:
length = tvb_get_guint8(tvb, offset);
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 */
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);
proto_tree_add_item(ext_tree_qos, hf_gtp_qos_version, tvb, offset, 2, ENC_BIG_ENDIAN);
/* 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;
}
/* 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 > 17) {
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);
}
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.20
* UMTS: 29.060 v4.0, chapter 7.7.29
* 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, nsapi, sapi, pdu_send_no, pdu_rec_no, 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, &gtp_val_ext, "Unknown message"));
ext_tree_pdp = proto_item_add_subtree(te, ett_gtp_pdp);
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, &gtp_val_ext, "Unknown field"));
ext_tree_apn = proto_item_add_subtree(te, ett_gtp_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
* 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, proto_offset;
guint16 proto_id;
guint8 conf, proto_len, cnt = 1;
tvbuff_t *next_tvb;
proto_tree *ext_tree_proto;
proto_item *te;
gboolean save_writable;
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, &gtp_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;
conf = tvb_get_guint8(tvb, offset + 3) & 0x07;
proto_tree_add_text(ext_tree_proto, tvb, offset + 3, 1, "Configuration protocol (00000xxx): %u", conf);
proto_offset = 1; /* ... 1st byte is conf */
offset += 4;
for (;;) {
if (proto_offset >= length)
break;
proto_id = tvb_get_ntohs(tvb, offset);
proto_len = tvb_get_guint8(tvb, offset + 2);
proto_offset += proto_len + 3; /* 3 = proto id + length byte */
if (proto_len > 0) {
proto_tree_add_text(ext_tree_proto, tvb, offset, 2, "Protocol %u ID: %s (0x%04x)",
cnt, val_to_str_ext_const(proto_id, &ppp_vals_ext, "Unknown"), proto_id);
proto_tree_add_text(ext_tree_proto, tvb, offset + 2, 1, "Protocol %u length: %u", cnt, proto_len);
/*
* Don't allow the dissector for the configuration
* protocol in question to update the columns - this
* is GTP, not PPP.
*/
save_writable = col_get_writable(pinfo->cinfo);
col_set_writable(pinfo->cinfo, ENC_BIG_ENDIAN);
/*
* XXX - should we have our own dissector table,
* solely for configuration protocols, so that bogus
* values don't cause us to dissect the protocol
* data as, for example, IP?
*/
next_tvb = tvb_new_subset(tvb, offset + 3, proto_len, proto_len);
if (!dissector_try_uint(ppp_subdissector_table, proto_id, next_tvb, pinfo, ext_tree_proto)) {
call_dissector(data_handle, next_tvb, pinfo, ext_tree_proto);
}
col_set_writable(pinfo->cinfo, save_writable);
}
offset += proto_len + 3;
cnt++;
}
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 _U_, proto_tree * tree)
{
gchar *msisdn_str;
guint16 length;
length = tvb_get_ntohs(tvb, offset + 1);
if (length < 1)
return 3;
msisdn_str = msisdn_to_str(tvb, offset + 3, length);
proto_tree_add_string(tree, hf_gtp_msisdn, tvb, offset, 3 + length, msisdn_str);
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 *target_id_item;
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);
target_id_item = proto_tree_add_text(tree, tvb, offset, 3 + length, "Target Identification");
ext_tree = proto_item_add_subtree(target_id_item, ett_gtp_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 *utran_cont_item;
proto_tree *ext_tree;
tvbuff_t *next_tvb;
length = tvb_get_ntohs(tvb, offset + 1);
utran_cont_item = proto_tree_add_text(tree, tvb, offset, 3 + length, "UTRAN transparent field");
ext_tree = proto_item_add_subtree(utran_cont_item, ett_gtp_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;
guint8 nsapi;
struct e_in6_addr addr_ipv6;
proto_tree *ext_tree_rab_setup;
proto_item *te;
length = tvb_get_ntohs(tvb, offset + 1);
nsapi = tvb_get_guint8(tvb, offset + 3) & 0x0F;
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_uint(ext_tree_rab_setup, hf_gtp_nsapi, tvb, offset + 3, 1, nsapi);
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, &gtp_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, &gtp_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, &gtp_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, &gtp_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, &gtp_val_ext, "Unknown"));
ext_tree_chrg_addr = proto_item_add_subtree(te, ett_gtp_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, &gtp_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 v6.11.0, chapter 7.7.44 RAN Transparent Container
*/
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;
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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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;
/* 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 7.7.45 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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_gtp_ext_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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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, &gtp_val_ext, "Unknown"));
ext_tree_apn_res = proto_item_add_subtree(te, ett_gtp_ext_tree_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
* 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, &gtp_val_ext, "Unknown"));
ext_tree_rat_type = proto_item_add_subtree(te, ett_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);
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++;
if (geo_loc_type == 0)
/* 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);
if (geo_loc_type == 1) {
/* 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);
}
return tvb_bytes_to_str(tvb, 0, length);
}
static int decode_gtp_usr_loc_inf(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree)
{
guint16 length;
proto_tree *ext_tree;
proto_item *te;
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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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++;
if (geo_loc_type == 0)
/* 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);
if (geo_loc_type == 1) {
/* 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);
}
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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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, &gtp_val_ext, "Unknown"));
ext_imeisv = proto_item_add_subtree(te, ett_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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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_BIG_ENDIAN);
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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_gtp_ext_rim_ra);
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");
/*
* Octets 4-n are coded according to 3GPP TS 48.018 [20] 11.3.77 RIM Routing Information IE octets 4-n.
*/
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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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, 1, 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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_gtp_ext_bms_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, 1, 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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_gtp_ext_sel_plmn_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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_gtp_ext_ad_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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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_BSSGP_CAUSE, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_gtp_ext_bssgp_cause);
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 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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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;
}
/*
* 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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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;
}
/*
* 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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_gtp_ext_ps_handover_xid);
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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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;
}
/*
* 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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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");
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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_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;
}
/*
* 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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_gtp_bcm);
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;
}
/*
* 7.7.91 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, &gtp_val_ext, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_gtp_ext_pdu_no);
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;
}
/* 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, &gtp_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 higer releases */
if(format==1){
dissect_gprscdr_GPRSCallEventRecord_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, &gtp_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_BIG_ENDIAN);
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, *flags_tree, *ext_tree;
proto_item *ti, *tf, *item;
int i, offset, length, gtp_prime, checked_field, mandatory;
int seq_no=0, flow_label=0;
guint8 pdu_no, next_hdr = 0, ext_hdr_val, noOfExtHdrs = 0, ext_hdr_length;
gchar *tid_str;
guint32 teid = 0;
tvbuff_t *next_tvb;
guint8 sub_proto, acfield_len = 0, control_field;
gtp_msg_hash_t *gcrp=NULL;
conversation_t *conversation=NULL;
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;
}
col_add_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(gtp_hdr.message, &message_type_ext, "Unknown"));
if (tree) {
ti = proto_tree_add_item(tree, proto_gtp, tvb, 0, -1, ENC_BIG_ENDIAN);
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==0){
proto_tree_add_uint(flags_tree, hf_gtp_flags_ver, tvb, 0, 1, gtp_hdr.flags);
}else{
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);
if((gtp_prime==1)||(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);
gtp_hdr.length = g_ntohs(gtp_hdr.length);
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;
} 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) {
offset++;
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, &gtp_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;
/* 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, ">");
}
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 const true_false_string yes_no_tfs = {
"yes",
"no"
};
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)
{
static hf_register_info hf_gtp[] = {
{&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_snn,
{"Is SNDCP N-PDU included?", "gtp.flags.snn", FT_BOOLEAN, 8, TFS(&yes_no_tfs), 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(&yes_no_tfs), 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(&yes_no_tfs), 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(&yes_no_tfs), 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, &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_msisdn, {"MSISDN", "gtp.msisdn", FT_STRING, BASE_NONE, NULL, 0, "MS international PSTN/ISDN number", 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, 0, "Network layer Service Access Point Identifier", HFILL}},
{&hf_gtp_qos_version, {"Version", "gtp.qos_version", FT_STRING, BASE_NONE, 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(&gtp_sig_ind), GTP_EXT_QOS_SIG_IND_MASK, 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_mcc, {"MCC", "gtp.mcc", FT_UINT16, BASE_DEC, NULL, 0, "Mobile Country Code", HFILL}},
{&hf_gtp_rai_mnc, {"MNC", "gtp.mnc", FT_UINT8, BASE_DEC, NULL, 0, "Mobile Network Code", 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_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, "Packat transfer command", 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_unknown, {"Unknown data (length)", "gtp.unknown", FT_UINT16, BASE_DEC, NULL, 0, "Unknown data", 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, "PDP type", 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.no_of_vectors",
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_ksi",
FT_UINT8, BASE_DEC, NULL, 0x07,
"CKSN", HFILL}
},
{&hf_gtp_ksi,
{"Key Set Identifier (KSI)", "gtp.cksn_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_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_UINT8, BASE_DEC, NULL, 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_UINT8, BASE_DEC, NULL, 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_spare,
{"Spare", "gtp.spare",
FT_UINT8, BASE_DEC, NULL, 0x02,
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.ran_pcd_rd",
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.ran_pcd_rd",
FT_BOOLEAN, 8, NULL, 0x40,
NULL, HFILL}},
{&hf_gtp_tmgi,
{"Temporary Mobile Group Identity (TMGI)", "gtp.cmn_flg.ran_pcd_rd",
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_UINT8, BASE_DEC, NULL, 0xfe,
NULL, HFILL}
},
{&hf_gtp_mbms_ses_dur_s,
{"Estimated session duration seconds", "gtp.mbms_ses_dur_s",
FT_UINT24, BASE_DEC, NULL, 0x01ffff,
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}
},
};
static gint *ett_gtp_array[] = {
&ett_gtp,
&ett_gtp_flags,
&ett_gtp_ext,
&ett_gtp_rai,
&ett_gtp_qos,
&ett_gtp_auth_tri,
&ett_gtp_flow_ii,
&ett_gtp_rab_cntxt,
&ett_gtp_rp,
&ett_gtp_pkt_flow_id,
&ett_gtp_chrg_char,
&ett_gtp_user,
&ett_gtp_mm,
&ett_gtp_trip,
&ett_gtp_quint,
&ett_gtp_pdp,
&ett_gtp_apn,
&ett_gtp_proto,
&ett_gtp_gsn_addr,
&ett_gtp_tft,
&ett_gtp_tft_pf,
&ett_gtp_tft_flags,
&ett_gtp_rab_setup,
&ett_gtp_hdr_list,
&ett_gtp_chrg_addr,
&ett_gtp_node_addr,
&ett_gtp_rel_pack,
&ett_gtp_can_pack,
&ett_gtp_data_resp,
&ett_gtp_priv_ext,
&ett_gtp_net_cap,
&ett_gtp_ext_tree_apn_res,
&ett_gtp_ext_rat_type,
&ett_gtp_ext_imeisv,
&ett_gtp_ext_ran_tr_cont,
&ett_gtp_ext_pdp_cont_prio,
&ett_gtp_ext_ssgn_no,
&ett_gtp_ext_rab_setup_inf,
&ett_gtp_ext_common_flgs,
&ett_gtp_ext_usr_loc_inf,
&ett_gtp_ext_ms_time_zone,
&ett_gtp_ext_camel_chg_inf_con,
&ett_GTP_EXT_MBMS_UE_CTX,
&ett_gtp_ext_tmgi,
&ett_gtp_tmgi,
&ett_gtp_ext_rim_ra,
&ett_gtp_ext_mbms_prot_conf_opt,
&ett_gtp_ext_mbms_sa,
&ett_gtp_ext_bms_ses_dur,
&ett_gtp_ext_src_rnc_pdp_ctx_inf,
&ett_gtp_ext_add_trs_inf,
&ett_gtp_ext_hop_count,
&ett_gtp_ext_sel_plmn_id,
&ett_gtp_ext_mbms_ses_id,
&ett_gtp_ext_mbms_2g_3g_ind,
&ett_gtp_ext_enh_nsapi,
&ett_gtp_ext_ad_mbms_trs_inf,
&ett_gtp_ext_mbms_ses_id_rep_no,
&ett_gtp_ext_mbms_time_to_data_tr,
&ett_gtp_ext_ps_ho_req_ctx,
&ett_gtp_ext_bss_cont,
&ett_gtp_ext_cell_id,
&ett_gtp_ext_pdu_no,
&ett_gtp_ext_bssgp_cause,
&ett_gtp_ext_ra_prio_lcs,
&ett_gtp_ext_ps_handover_xid,
&ett_gtp_target_id,
&ett_gtp_utran_cont,
&ett_gtp_bcm,
&ett_gtp_cdr_ver,
&ett_gtp_cdr_dr,
&ett_gtp_ext_hdr,
};
module_t *gtp_module;
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");
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:
*/
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