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wireshark/epan/dissectors/packet-gtp.c

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/* packet-gtp.c
*
* Routines for GTP dissection
* Copyright 2001, Michal Melerowicz <michal.melerowicz@nokia.com>
* Nicolas Balkota <balkota@mac.com>
*
* Updates and corrections:
* Copyright 2006 - 2008, Anders Broman <anders.broman@ericsson.com>
*
* $Id$
*
* 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 version 6.8.0 Release 6
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include <epan/packet.h>
#include <epan/prefs.h>
#include <epan/expert.h>
#include <epan/sminmpec.h>
#include <epan/asn1.h>
#include "packet-ipv6.h"
#include "packet-ppp.h"
#include "packet-radius.h"
#include "packet-bssap.h"
#include "packet-gsm_a.h"
#include "packet-gsm_map.h"
#include "packet-per.h"
#include "packet-ranap.h"
#include "packet-bssgp.h"
static dissector_table_t ppp_subdissector_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 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;
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_flags = -1;
static int hf_gtp_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_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_targetid = -1;
static int hf_gtp_bssgp_cause = -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;
/* 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_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_target_id = -1;
static gint ett_gtp_utran_cont = -1;
static gboolean gtp_tpdu = TRUE;
static gboolean gtp_over_tcp = TRUE;
static gboolean gtp_etsi_order = FALSE;
static guint gtpv0_port = 0;
static guint gtpv1c_port = 0;
static guint gtpv1u_port = 0;
/* 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, "None" },
{ 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
/* 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
/* 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
/* definitions of GTP messages */
#define GTP_MSG_UNKNOWN 0x00
#define GTP_MSG_ECHO_REQ 0x01
#define GTP_MSG_ECHO_RESP 0x02
#define GTP_MSG_VER_NOT_SUPP 0x03
#define GTP_MSG_NODE_ALIVE_REQ 0x04
#define GTP_MSG_NODE_ALIVE_RESP 0x05
#define GTP_MSG_REDIR_REQ 0x06
#define GTP_MSG_REDIR_RESP 0x07
#define GTP_MSG_CREATE_PDP_REQ 0x10
#define GTP_MSG_CREATE_PDP_RESP 0x11
#define GTP_MSG_UPDATE_PDP_REQ 0x12
#define GTP_MSG_UPDATE_PDP_RESP 0x13
#define GTP_MSG_DELETE_PDP_REQ 0x14
#define GTP_MSG_DELETE_PDP_RESP 0x15
#define GTP_MSG_CREATE_AA_PDP_REQ 0x16 /* 2G */
#define GTP_MSG_CREATE_AA_PDP_RESP 0x17 /* 2G */
#define GTP_MSG_DELETE_AA_PDP_REQ 0x18 /* 2G */
#define GTP_MSG_DELETE_AA_PDP_RESP 0x19 /* 2G */
#define GTP_MSG_ERR_IND 0x1A
#define GTP_MSG_PDU_NOTIFY_REQ 0x1B
#define GTP_MSG_PDU_NOTIFY_RESP 0x1C
#define GTP_MSG_PDU_NOTIFY_REJ_REQ 0x1D
#define GTP_MSG_PDU_NOTIFY_REJ_RESP 0x1E
#define GTP_MSG_SUPP_EXT_HDR 0x1F
#define GTP_MSG_SEND_ROUT_INFO_REQ 0x20
#define GTP_MSG_SEND_ROUT_INFO_RESP 0x21
#define GTP_MSG_FAIL_REP_REQ 0x22
#define GTP_MSG_FAIL_REP_RESP 0x23
#define GTP_MSG_MS_PRESENT_REQ 0x24
#define GTP_MSG_MS_PRESENT_RESP 0x25
#define GTP_MSG_IDENT_REQ 0x30
#define GTP_MSG_IDENT_RESP 0x31
#define GTP_MSG_SGSN_CNTXT_REQ 0x32
#define GTP_MSG_SGSN_CNTXT_RESP 0x33
#define GTP_MSG_SGSN_CNTXT_ACK 0x34
#define GTP_MSG_FORW_RELOC_REQ 0x35
#define GTP_MSG_FORW_RELOC_RESP 0x36
#define GTP_MSG_FORW_RELOC_COMP 0x37
#define GTP_MSG_RELOC_CANCEL_REQ 0x38
#define GTP_MSG_RELOC_CANCEL_RESP 0x39
#define GTP_MSG_FORW_SRNS_CNTXT 0x3A
#define GTP_MSG_FORW_RELOC_ACK 0x3B
#define GTP_MSG_FORW_SRNS_CNTXT_ACK 0x3C
#define GTP_MSG_RAN_INFO_RELAY 70
#define GTP_MBMS_NOTIFY_REQ 96
#define GTP_MBMS_NOTIFY_RES 97
#define GTP_MBMS_NOTIFY_REJ_REQ 98
#define GTP_MBMS_NOTIFY_REJ_RES 99
#define GTP_CREATE_MBMS_CNTXT_REQ 100
#define GTP_CREATE_MBMS_CNTXT_RES 101
#define GTP_UPD_MBMS_CNTXT_REQ 102
#define GTP_UPD_MBMS_CNTXT_RES 103
#define GTP_DEL_MBMS_CNTXT_REQ 104
#define GTP_DEL_MBMS_CNTXT_RES 105
#define GTP_MBMS_REG_REQ 112
#define GTP_MBMS_REG_RES 113
#define GTP_MBMS_DE_REG_REQ 114
#define GTP_MBMS_DE_REG_RES 115
#define GTP_MBMS_SES_START_REQ 116
#define GTP_MBMS_SES_START_RES 117
#define GTP_MBMS_SES_STOP_REQ 118
#define GTP_MBMS_SES_STOP_RES 119
#define GTP_MBMS_SES_UPD_REQ 120
#define GTP_MBMS_SES_UPD_RES 121
/* 122-127 For future use. Shall not be sent.
* If received, shall be treated as an Unknown message.
*/
#define GTP_MS_INFO_CNG_NOT_REQ 121
#define GTP_MS_INFO_CNG_NOT_RES 122
/* 130-239 For future use. Shall not be sent.
* If received, shall be treated as an Unknown message.
*/
#define GTP_MSG_DATA_TRANSF_REQ 0xF0
#define GTP_MSG_DATA_TRANSF_RESP 0xF1
/* 242-254 For future use. Shall not be sent.
* If received, shall be treated as an Unknown message.
*/
#define GTP_MSG_TPDU 0xFF
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" },
{ 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" },
{ GTP_MSG_IDENT_REQ, "Identification request" },
{ GTP_MSG_IDENT_RESP, "Identification response" },
{ GTP_MSG_SGSN_CNTXT_REQ, "SGSN context request" },
{ GTP_MSG_SGSN_CNTXT_RESP, "SGSN context response" },
{ GTP_MSG_SGSN_CNTXT_ACK, "SGSN context acknowledgement" },
{ GTP_MSG_FORW_RELOC_REQ, "Forward relocation request" },
{ GTP_MSG_FORW_RELOC_RESP, "Forward relocation response" },
{ GTP_MSG_FORW_RELOC_COMP, "Forward relocation complete" },
{ GTP_MSG_RELOC_CANCEL_REQ, "Relocation cancel request" },
{ GTP_MSG_RELOC_CANCEL_RESP, "Relocation cancel response" },
{ GTP_MSG_FORW_SRNS_CNTXT, "Forward SRNS context" },
{ GTP_MSG_FORW_RELOC_ACK, "Forward relocation complete acknowledge" },
{ GTP_MSG_FORW_SRNS_CNTXT_ACK, "Forward SRNS context acknowledge" },
{ GTP_MSG_RAN_INFO_RELAY, "RAN Information Relay" },
{ 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" },
{ 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" },
{ GTP_MSG_DATA_TRANSF_REQ, "Data record transfer request" },
{ GTP_MSG_DATA_TRANSF_RESP, "Data record transfer response" },
{ GTP_MSG_TPDU, "T-PDU" },
{ 0, NULL }
};
/* 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
#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 */
#define GTP_EXT_TR_COMM 0x7E /* charging */
#define GTP_EXT_CHRG_ID 0x7F
#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 */
#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 0xA0 /* 3G 176 TLV BSSGP Cause 7.7.75 */
#define GTP_EXT_REQ_MBMS_BEARER_CAP 0xA1 /* 3G 177 TLV Required MBMS bearer capabilities 7.7.76 */
#define GTP_EXT_RIM_ROUTING_ADDR_DISC 0xA2 /* 3G 178 TLV RIM Routing Address Discriminator 7.7.77 */
#define GTP_EXT_LIST_OF_SETUP_PFCS 0xA3 /* 3G 179 TLV List of set-up PFCs 7.7.78 */
#define GTP_EXT_PS_HANDOWER_XIP_PAR 0xA4 /* 3G 180 TLV PS Handover XID Parameters 7.7.79 */
#define GTP_EXT_MS_INF_CHG_REP_ACT 0xA5 /* 3G 181 TLV MS Info Change Reporting Action 7.7.80 */
#define GTP_EXT_DIRECT_TUNNEL_FLGS 0xA6 /* 3G 182 TLV Direct Tunnel Flags 7.7.81 */
#define GTP_EXT_CORRELATION_ID 0xA7 /* 3G 183 TLV Correlation-ID 7.7.82 */
#define GTP_EXT_BEARER_CONTROL_MODE 0xA8 /* 3G 184 TLV Bearer Control Mode 7.7.83 */
/* 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_HANDOWER_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 */
{ 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 }
};
/* 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 }
};
/* GPRS: 9.60 v7.6.0, page 37
* UMTS: 29.060 v4.0, page 45
*/
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" },
{ 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 */
{ 128, "Request accepted" },
{ 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" },
{ 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 }
};
/* 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 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 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 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" },
{ 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, "Tqueing Expiry" },
{ 6, "Relocation Triggered" },
{ 7, "TRELOCalloc Expiry" },
{ 8, "Unable to Estabish 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 Opimisation" },
/* 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 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_table_t bssap_pdu_type_table=NULL;
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_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_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" };
static void
col_append_str_gtp(column_info *cinfo, gint el, const gchar *proto_name) {
int i;
int max_len;
gchar _tmp[COL_MAX_LEN];
max_len = COL_MAX_LEN;
for (i = 0; i < cinfo->num_cols; i++) {
if (cinfo->fmt_matx[i][el]) {
if (cinfo->col_data[i] != cinfo->col_buf[i]) {
strncpy(cinfo->col_buf[i], cinfo->col_data[i], max_len);
cinfo->col_buf[i][max_len - 1] = '\0';
}
_tmp[0] = '\0';
strncat(_tmp, proto_name, COL_MAX_LEN);
strncat(_tmp, " <", COL_MAX_LEN - strlen(_tmp));
strncat(_tmp, cinfo->col_buf[i], COL_MAX_LEN - strlen(_tmp));
strncat(_tmp, ">", COL_MAX_LEN - strlen(_tmp));
cinfo->col_buf[i][0] = '\0';
strncat(cinfo->col_buf[i], _tmp, COL_MAX_LEN);
cinfo->col_data[i] = cinfo->col_buf[i];
}
}
}
static gchar *
id_to_str(const guint8 *ad) {
static gchar str[17] = " ";
guint8 bits8to5, bits4to1;
int i, j = 0;
static const gchar hex_digits[10] = "0123456789";
for (i = 0; i < 8; i++) {
bits8to5 = (ad[i] >> 4) & 0x0F;
bits4to1 = ad[i] & 0x0F;
if (bits4to1 < 0xA)
str[j++] = hex_digits[bits4to1];
if (bits8to5 < 0xA)
str[j++] = hex_digits[bits8to5];
}
str[j] = '\0';
return str;
}
static gchar *
imsi_to_str(const guint8 *ad) {
static gchar str[17] = " ";
int i, j = 0;
for (i = 0; i < 8; i++) {
if ((ad[i] & 0x0F) <= 9) str[j++] = (ad[i] & 0x0F) + 0x30;
if (((ad[i] >> 4) & 0x0F) <= 9) str[j++] = ((ad[i] >> 4) & 0x0F) + 0x30;
}
str[j] = '\0';
return str;
}
static gchar *
msisdn_to_str(const guint8 *ad, int len) {
static gchar str[18] = "+ ";
guint8 bits8to5, bits4to1;
int i, j = 1;
static const gchar hex_digits[10] = "0123456789";
for (i = 1; i < len && i < 9; i++) {
bits8to5 = (ad[i] >> 4) & 0x0F;
bits4to1 = ad[i] & 0x0F;
if (bits4to1 < 0xA)
str[j++] = hex_digits[bits4to1];
if (bits8to5 < 0xA)
str[j++] = hex_digits[bits8to5];
}
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_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_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 }
}
},
{ /* 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_PRIV_EXT, GTP_OPTIONAL },
{ 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_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 }
}
}
};
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
*/
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) {
guint8 imsi_val[8];
gchar *imsi_str;
tvb_memcpy(tvb, imsi_val, offset+1, 8);
imsi_str = imsi_to_str (imsi_val);
proto_tree_add_string (tree, hf_gtp_imsi, tvb, offset, 9, 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, val_to_str(GTP_EXT_RAI, gtp_val, "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) & 0xC0;
delay = tvb_get_guint8(tvb, offset) & 0x38;
reliability = tvb_get_guint8(tvb, offset) & 0x07;
peak = tvb_get_guint8(tvb, offset+1) & 0xF0;
spare2 = tvb_get_guint8(tvb, offset+1) & 0x08;
precedence = tvb_get_guint8(tvb, offset+1) & 0x07;
spare3 = tvb_get_guint8(tvb, offset+2) & 0xE0;
mean = tvb_get_guint8(tvb, offset+2) & 0x1F;
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, val_to_str(GTP_EXT_AUTH_TRI, gtp_val, "Unknown message"));
ext_tree_auth_tri = proto_item_add_subtree(tree, 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) {
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(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, FALSE);
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, val_to_str(GTP_EXT_FLOW_II, gtp_val, "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, val_to_str(GTP_EXT_TEID_II, gtpv1_val, "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(GTP_EXT_RANAP_CAUSE, gtp_val, "Unknown"),
val_to_str(ranap, ranap_cause_type, "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(GTP_EXT_RANAP_CAUSE, gtp_val, "Unknown"),
val_to_str(ranap, ranap_cause_type, "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(GTP_EXT_RANAP_CAUSE, gtp_val, "Unknown"),
val_to_str(ranap, ranap_cause_type, "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(GTP_EXT_RANAP_CAUSE, gtp_val, "Unknown"),
val_to_str(ranap, ranap_cause_type, "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(GTP_EXT_RANAP_CAUSE, gtp_val, "Unknown"),
val_to_str(ranap, ranap_cause_type, "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(GTP_EXT_RANAP_CAUSE, gtp_val, "Unknown"),
val_to_str(ranap, ranap_cause_type, "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, val_to_str(GTP_EXT_RAB_CNTXT, gtp_val, "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, FALSE);
proto_tree_add_item(ext_tree_rab_cntxt, hf_gtp_rab_gtpu_up, tvb, offset+4, 2, FALSE);
proto_tree_add_item(ext_tree_rab_cntxt, hf_gtp_rab_pdu_dn, tvb, offset+6, 2, FALSE);
proto_tree_add_item(ext_tree_rab_cntxt, hf_gtp_rab_pdu_up, tvb, offset+8, 2, FALSE);
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(tree, 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(tree, 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(GTP_EXT_PKT_FLOW_ID, gtp_val, "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 (GTP_EXT_CHRG_CHAR, gtp_val, "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);
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(GTP_EXT_RA_PRIO_LCS, gtp_val, "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, FALSE);
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: 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(GTP_EXT_USER_ADDR, gtp_val, "Unknown message"),
val_to_str(pdp_org, pdp_org_type, "Unknown PDP Organization"),
val_to_str(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 _U_, proto_tree *tree) {
guint16 length, quint_len, con_len;
guint8 cksn, count, sec_mode, len;
proto_tree *ext_tree_mm;
proto_item *te;
proto_item *tf = NULL;
proto_tree *tf_tree = NULL;
tvbuff_t *l3_tvb;
te = proto_tree_add_text(tree, tvb, offset, 1, val_to_str(GTP_EXT_MM_CNTXT, gtp_val, "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 = tvb_get_guint8(tvb, offset+3) & 0x07;
/* 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, FALSE);
proto_tree_add_item(ext_tree_mm, hf_gtp_security_mode, tvb, offset+4, 1, FALSE);
proto_tree_add_item(ext_tree_mm, hf_gtp_no_of_vectors, tvb, offset+4, 1, FALSE);
proto_tree_add_item(ext_tree_mm, hf_gtp_cipher_algorithm, tvb, offset+4, 1, FALSE);
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, FALSE);
if (gtp_version != 0)
proto_tree_add_item(ext_tree_mm, hf_gtp_security_mode, tvb, offset+4, 1, FALSE);
proto_tree_add_item(ext_tree_mm, hf_gtp_no_of_vectors, tvb, offset+4, 1, FALSE);
proto_tree_add_item(ext_tree_mm, hf_gtp_cipher_algorithm, tvb, offset+4, 1, FALSE);
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, FALSE);
proto_tree_add_item(ext_tree_mm, hf_gtp_security_mode, tvb, offset+4, 1, FALSE);
proto_tree_add_item(ext_tree_mm, hf_gtp_no_of_vectors, tvb, offset+4, 1, FALSE);
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, FALSE);
proto_tree_add_item(ext_tree_mm, hf_gtp_security_mode, tvb, offset+4, 1, FALSE);
proto_tree_add_item(ext_tree_mm, hf_gtp_no_of_vectors, tvb, offset+4, 1, FALSE);
proto_tree_add_item(ext_tree_mm, hf_gtp_cipher_algorithm, tvb, offset+4, 1, FALSE);
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, 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, offset, len, NULL, 0);
offset = offset +len;
/* 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.
* The IMEISV shall, if available, be included in the Container.
*/
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) {
l3_tvb = tvb_new_subset(tvb, offset,con_len, con_len );
if (!dissector_try_port(bssap_pdu_type_table,BSSAP_PDU_TYPE_DTAP, l3_tvb, pinfo, ext_tree_mm))
call_dissector(data_handle, l3_tvb, pinfo, ext_tree_mm);
}
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;
guint8 res_ber, sdu_err_ratio;
guint8 trans_delay, traf_handl_prio;
guint8 guar_ul, guar_dl;
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, FALSE);
/* 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) & 0xC0;
delay = wrapped_tvb_get_guint8(tvb, offset+(1 - 1) * utf8_type + 1, utf8_type) & 0x38;
reliability = wrapped_tvb_get_guint8(tvb, offset+(1 - 1) * utf8_type + 1, utf8_type) & 0x07;
peak = wrapped_tvb_get_guint8(tvb, offset+(2 - 1) * utf8_type + 1, utf8_type) & 0xF0;
spare2 = wrapped_tvb_get_guint8(tvb, offset+(2 - 1) * utf8_type + 1, utf8_type) & 0x08;
precedence = wrapped_tvb_get_guint8(tvb, offset+(2 - 1) * utf8_type + 1, utf8_type) & 0x07;
spare3 = wrapped_tvb_get_guint8(tvb, offset+(3 - 1) * utf8_type + 1, utf8_type) & 0xE0;
mean = wrapped_tvb_get_guint8(tvb, offset+(3 - 1) * utf8_type + 1, utf8_type) & 0x1F;
/* 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);
if (length > 4) {
/* See above for the need of wrapping
* */
traf_class = wrapped_tvb_get_guint8(tvb, offset+(4 - 1) * utf8_type + 1, utf8_type) & 0xE0;
del_order = wrapped_tvb_get_guint8(tvb, offset+(4 - 1) * utf8_type + 1, utf8_type) & 0x18;
del_err_sdu = wrapped_tvb_get_guint8(tvb, offset+(4 - 1) * utf8_type + 1, utf8_type) & 0x07;
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) & 0xF0;
sdu_err_ratio = wrapped_tvb_get_guint8(tvb, offset+(8 - 1) * utf8_type + 1, utf8_type) & 0x0F;
trans_delay = wrapped_tvb_get_guint8(tvb, offset+(9 - 1) * utf8_type + 1, utf8_type) & 0xFC;
traf_handl_prio = wrapped_tvb_get_guint8(tvb, offset+(9 - 1) * utf8_type + 1, utf8_type) & 0x03;
guar_ul = wrapped_tvb_get_guint8(tvb, offset+(10 - 1) * utf8_type + 1, utf8_type);
guar_dl = wrapped_tvb_get_guint8(tvb, offset+(11 - 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);
}
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);
}
}
return retval;
}
static const gchar* dissect_radius_qos_umts(proto_tree *tree, tvbuff_t *tvb) {
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, 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, val_to_str(GTP_EXT_PDP_CNTXT, gtp_val, "Unknown message"));
ext_tree_pdp = proto_item_add_subtree(te, ett_gtp_pdp);
vaa = (tvb_get_guint8(tvb, offset+3) >> 6) & 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, "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, FALSE);
proto_tree_add_item(ext_tree_pdp, hf_gtp_ulink_teid_data, tvb, offset+10, 4, FALSE);
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(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(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, val_to_str(GTP_EXT_APN, gtp_val, "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, val_to_str(GTP_EXT_PROTO_CONF, gtp_val, "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(proto_id, ppp_vals, "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, FALSE);
/*
* 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_port(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) {
const guint8 *msisdn_val;
gchar *msisdn_str;
guint16 length;
length = tvb_get_ntohs(tvb, offset+1);
if (length < 1) return 3;
msisdn_val = tvb_get_ptr(tvb, offset+3, length);
msisdn_str = msisdn_to_str(msisdn_val, 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, FALSE);
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));
offset = 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, spare;
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;
spare = (tft_flags >> 4) & 0x01;
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, FALSE);
offset = offset +2;
next_tvb = tvb_new_subset (tvb, offset, length, length);
dissect_ranap_TargetID(next_tvb, 0, &asn1_ctx, ext_tree, hf_gtp_targetid);
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, FALSE);
offset = offset +2;
next_tvb = tvb_new_subset (tvb, offset, length, length);
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(GTP_EXT_HDR_LIST, gtp_val, "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(hdr, gtp_val, "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(GTP_EXT_TRIGGER_ID, gtp_val, "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(GTP_EXT_OMC_ID, gtp_val, "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(GTP_EXT_CHRG_ADDR, gtp_val, "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(GTP_EXT_CHRG_ADDR, gtp_val, "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(GTP_EXT_RAN_TR_CONT, gtp_val, "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, FALSE);
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(GTP_EXT_PDP_CONT_PRIO, gtp_val, "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, FALSE);
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(GTP_EXT_ADD_RAB_SETUP_INF, gtp_val, "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, FALSE);
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(GTP_EXT_SSGN_NO, gtp_val, "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, FALSE);
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(GTP_EXT_COMMON_FLGS, gtp_val, "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, FALSE);
offset = offset +2;
/* Upgrade QoS Supported */
proto_tree_add_item(ext_tree, hf_gtp_cmn_flg_upgrd_qos_sup, tvb, offset, 1, FALSE);
/* No QoS negotiation */
proto_tree_add_item(ext_tree, hf_gtp_cmn_flg_no_qos_neg, tvb, offset, 1, FALSE);
/* NRSN bit field */
proto_tree_add_item(ext_tree, hf_gtp_cmn_flg_nrsn, tvb, offset, 1, FALSE);
/* MBMS Counting Information bi */
proto_tree_add_item(ext_tree, hf_gtp_cmn_flg_mbs_cnt_inf, tvb, offset, 1, FALSE);
/* RAN Procedures Ready */
proto_tree_add_item(ext_tree, hf_gtp_cmn_flg_mbs_ran_pcd_rdy, tvb, offset, 1, FALSE);
/* MBMS Service Type */
proto_tree_add_item(ext_tree, hf_gtp_cmn_flg_mbs_srv_type, tvb, offset, 1, FALSE);
/* Prohibit Payload Compression */
proto_tree_add_item(ext_tree, hf_gtp_cmn_flg_ppc, tvb, offset, 1, FALSE);
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(GTP_EXT_APN_RES, gtp_val, "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, FALSE);
offset = offset +2;
/* Restriction Type value */
proto_tree_add_item(ext_tree_apn_res, hf_gtp_ext_apn_res, tvb, offset, length, FALSE);
return 3 + length;
}
/* GPRS: ?
* UMTS: 29.060 v6.11.0, chapter 7.7.50
* RAT Type
* Type = 151 (Decimal)
*/
static const gchar* dissect_radius_rat_type(proto_tree *tree, tvbuff_t *tvb) {
guint8 octet;
octet = tvb_get_guint8(tvb,0);
proto_tree_add_item(tree, hf_gtp_ext_rat_type, tvb, 0, 1, FALSE);
return val_to_str(octet, gtp_ext_rat_type_vals, "Unknown");
}
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(GTP_EXT_RAT_TYPE, gtp_val, "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, FALSE);
offset = offset +2;
/* RAT Type value */
proto_tree_add_item(ext_tree_rat_type, hf_gtp_ext_rat_type, tvb, offset, length, FALSE);
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) {
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, FALSE);
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, 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, offset, length-1, NULL, 0, 4);
offset = offset + 5;
proto_tree_add_item(tree, hf_gtp_ext_sac, tvb, offset, 2, FALSE);
}
return tvb_bytes_to_str(tvb, 0, length);
}
static int
decode_gtp_usr_loc_inf(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, 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(GTP_EXT_USR_LOC_INF, gtp_val, "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, FALSE);
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, FALSE);
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, 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, offset, length-1, NULL, 0, 4);
offset = offset + 5;
proto_tree_add_item(ext_tree, hf_gtp_ext_sac, tvb, offset, 2, FALSE);
}
return 3 + length;
}
/* GPRS: ?
* UMTS: 29.060 v6.11.0, chapter 7.7.52
* MS Time Zone
* Type = 153 (Decimal)
*/
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(GTP_EXT_MS_TIME_ZONE, gtp_val, "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, FALSE);
offset = offset +2;
proto_tree_add_text(ext_tree, tvb, offset, length, "Data not decoded yet");
/* 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(tree, tvb, offset, 1,"Timezone: GMT %c %d hours %d minutes",
sign, data / 4, data % 4 * 15);
*/
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;
char *digit_str;
length = tvb_get_ntohs(tvb, offset+1);
te = proto_tree_add_text(tree, tvb, offset, 3+length, "%s", val_to_str(GTP_EXT_IMEISV, gtp_val, "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, FALSE);
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(tree, hf_gtp_ext_imeisv, next_tvb, 0, -1, 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(GTP_EXT_CAMEL_CHG_INF_CON, gtp_val, "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, FALSE);
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(GTP_EXT_MBMS_UE_CTX, gtp_val, "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, FALSE);
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 _U_, 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(GTP_EXT_TMGI, gtp_val, "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, FALSE);
offset = offset +2;
ti = proto_tree_add_item(ext_tree, hf_gtp_tmgi, tvb, offset, length, FALSE);
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, 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(GTP_EXT_RIM_RA, gtp_val, "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, FALSE);
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(GTP_EXT_MBMS_PROT_CONF_OPT, gtp_val, "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, FALSE);
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, FALSE);
proto_tree_add_item(tree, hf_gtp_mbms_ses_dur_s, tvb, offset, 3, FALSE);
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(GTP_EXT_MBMS_SES_DUR, gtp_val, "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, FALSE);
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, FALSE);
proto_tree_add_item(ext_tree, hf_gtp_mbms_ses_dur_s, tvb, offset, 3, FALSE);
return 3 + length;
}
/* GPRS: ?
* UMTS: 3GPP TS 29.060 version 7.8.0 Release 7, chapter 7.7.60
* MBMS Service Area
*/
static int
decode_gtp_mbms_sa(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
guint16 length;
proto_tree *ext_tree;
proto_item *te, *item;
guint8 no_of_mbms_sa_codes;
int i;
length = tvb_get_ntohs(tvb, offset+1);
te = proto_tree_add_text(tree, tvb, offset, 3+length, "%s", val_to_str(GTP_EXT_MBMS_SA, gtp_val, "Unknown"));
ext_tree = proto_item_add_subtree(te, ett_gtp_ext_mbms_sa);
offset++;
item = proto_tree_add_item(ext_tree, hf_gtp_ext_length, tvb, offset, 2, FALSE);
offset = offset +2;
/* 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;
if(length != ((no_of_mbms_sa_codes <<1) +1)){
expert_add_info_format(pinfo, item, PI_RESPONSE_CODE, PI_WARN,
"Wrong length: %u. The length of an MBMS service area code is 2 octets",length);
}
proto_tree_add_uint(ext_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(ext_tree, hf_gtp_mbms_sa_code, tvb, offset, 2, FALSE);
offset = offset +2;
}
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(GTP_EXT_SRC_RNC_PDP_CTX_INF, gtp_val, "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, FALSE);
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(GTP_EXT_ADD_TRS_INF, gtp_val, "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, FALSE);
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(GTP_EXT_HOP_COUNT, gtp_val, "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, FALSE);
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(GTP_EXT_SEL_PLMN_ID, gtp_val, "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, FALSE);
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(GTP_EXT_MBMS_SES_ID, gtp_val, "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, FALSE);
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(GTP_EXT_MBMS_2G_3G_IND, gtp_val, "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, FALSE);
offset = offset +2;
/* MBMS 2G/3G Indicator */
proto_tree_add_item(ext_tree, hf_gtp_mbs_2g_3g_ind, tvb, offset, 1, FALSE);
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(GTP_EXT_ENH_NSAPI, gtp_val, "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, FALSE);
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(GTP_EXT_ADD_MBMS_TRS_INF, gtp_val, "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, FALSE);
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(GTP_EXT_MBMS_SES_ID_REP_NO, gtp_val, "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, FALSE);
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(GTP_EXT_MBMS_TIME_TO_DATA_TR, gtp_val, "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, FALSE);
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(GTP_EXT_PS_HO_REQ_CTX, gtp_val, "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, FALSE);
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(GTP_EXT_BSS_CONT, gtp_val, "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, FALSE);
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(GTP_EXT_CELL_ID, gtp_val, "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, FALSE);
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(GTP_EXT_PDU_NO, gtp_val, "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, FALSE);
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(GTP_EXT_BSSGP_CAUSE, gtp_val, "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, FALSE);
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, FALSE);
return 3 + length;
}
#if 0
/*
* 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(GTP_EXT_BSSGP_CAUSE, gtp_val, "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, FALSE);
offset = offset +2;
/* 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???)*/
}
#endif /* 0 */
/*
* RIM Routing Address Discriminator 7.7.77
*/
/*
* List of set-up PFCs 7.7.78
*/
/*
* PS Handover XID Parameters 7.7.79
*/
/*
* MS Info Change Reporting Action 7.7.80
*/
/*
* Direct Tunnel Flags 7.7.81
*/
/*
* Correlation-ID 7.7.82
*/
/*
* Bearer Control Mode 7.7.83
*/
/* 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 */
static int
decode_gtp_data_req(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) {
guint16 length, format_ver;
guint8 no, format;
proto_tree *ext_tree;
proto_item *te;
tvbuff_t *next_tvb;
te = proto_tree_add_text(tree, tvb, offset, 1, val_to_str(GTP_EXT_DATA_REQ, gtp_val, "Unknown message"));
ext_tree = proto_item_add_subtree(te, ett_gtp_ext);
length = tvb_get_ntohs(tvb, offset + 1);
no = tvb_get_guint8(tvb, offset + 3);
format = tvb_get_guint8(tvb, offset + 4);
format_ver = tvb_get_ntohs(tvb, offset + 5);
proto_tree_add_text(ext_tree, tvb, offset+1, 2, "Length: %u", length);
proto_tree_add_text(ext_tree, tvb, offset+3, 1, "Number of data records: %u", no);
proto_tree_add_text(ext_tree, tvb, offset+4, 1, "Data record format: %u", format);
proto_tree_add_text(ext_tree, tvb, offset+5, 2, "Data record format version: %u", format_ver);
if (gtpcdr_handle) {
next_tvb = tvb_new_subset (tvb, offset, -1, -1);
call_dissector (gtpcdr_handle, next_tvb, pinfo, tree);
}
else
proto_tree_add_text (tree, tvb, offset, 0, "Data");
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;
te = proto_tree_add_text(tree, tvb, offset, 1, val_to_str(GTP_EXT_PRIV_EXT, gtp_val, "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, FALSE);
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, FALSE);
}
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 (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
struct _gtp_hdr gtp_hdr;
proto_tree *gtp_tree, *flags_tree;
proto_item *ti, *tf;
int i, offset, length, gtp_prime, checked_field, mandatory;
int seq_no, flow_label;
guint8 pdu_no, next_hdr = 0, ext_hdr_val;
const guint8 *tid_val;
gchar *tid_str;
guint32 teid;
tvbuff_t *next_tvb;
guint8 sub_proto, acfield_len = 0, control_field;
if (check_col(pinfo->cinfo, COL_PROTOCOL))
col_set_str(pinfo->cinfo, COL_PROTOCOL, "GTP");
if (check_col(pinfo->cinfo, COL_INFO))
col_clear(pinfo->cinfo, COL_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;
}
if (check_col(pinfo->cinfo, COL_INFO))
col_add_str(pinfo->cinfo, COL_INFO, val_to_str(gtp_hdr.message, message_type, "Unknown"));
if (tree) {
ti = proto_tree_add_item (tree, proto_gtp, tvb, 0, -1, FALSE);
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);
proto_tree_add_uint (flags_tree, hf_gtp_flags_ver, tvb, 0, 1, gtp_hdr.flags);
proto_tree_add_uint (flags_tree, hf_gtp_flags_pt, tvb, 0, 1, gtp_hdr.flags);
switch (gtp_version) {
case 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);
break;
case 1:
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);
break;
default:
break;
}
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_val = tvb_get_ptr(tvb, offset, 8);
tid_str = id_to_str (tid_val);
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;
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);
proto_tree_add_uint (gtp_tree, hf_gtp_next, tvb, offset, 1, next_hdr);
if (!next_hdr)
offset++;
}
break;
default:
break;
}
if (gtp_hdr.message != GTP_MSG_TPDU) {
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 (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(checked_field, gtp_val, "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);
}
}
}
if ((gtp_hdr.message == GTP_MSG_TPDU) && 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;
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 (tvb, offset, -1, -1);
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 (tvb, offset, -1, -1);
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 (tvb, offset + acfield_len, -1, -1);
call_dissector (ppp_handle, next_tvb, pinfo, tree);
}
if (check_col(pinfo->cinfo, COL_PROTOCOL))
col_append_str_gtp(pinfo->cinfo, COL_PROTOCOL, "GTP");
}
}
static const true_false_string yes_no_tfs = {
"yes" ,
"no"
};
void
proto_register_gtp(void)
{
static hf_register_info hf_gtp[] = {
{ &hf_gtp_apn, { "APN", "gtp.apn", FT_STRING, BASE_DEC, NULL, 0, "Access Point Name", HFILL }},
{ &hf_gtp_cause, { "Cause ", "gtp.cause", FT_UINT8, BASE_DEC, VALS(cause_type), 0, "Cause of operation", HFILL }},
{ &hf_gtp_chrg_char, { "Charging characteristics", "gtp.chrg_char", FT_UINT16, BASE_DEC, NULL, 0, "Charging characteristics", HFILL }},
{ &hf_gtp_chrg_char_s, { "Spare", "gtp.chrg_char_s", FT_UINT16, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_S, "Spare", HFILL }},
{ &hf_gtp_chrg_char_n, { "Normal charging", "gtp.chrg_char_n", FT_UINT16, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_N, "Normal charging", HFILL }},
{ &hf_gtp_chrg_char_p, { "Prepaid charging", "gtp.chrg_char_p", FT_UINT16, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_P, "Prepaid charging", HFILL }},
{ &hf_gtp_chrg_char_f, { "Flat rate charging", "gtp.chrg_char_f", FT_UINT16, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_F, "Flat rate charging", HFILL }},
{ &hf_gtp_chrg_char_h, { "Hot billing charging", "gtp.chrg_char_h", FT_UINT16, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_H, "Hot billing charging", HFILL }},
{ &hf_gtp_chrg_char_r, { "Reserved", "gtp.chrg_char_r", FT_UINT16, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_R, "Reserved", HFILL }},
{ &hf_gtp_chrg_id, { "Charging ID", "gtp.chrg_id", FT_UINT32, BASE_HEX, NULL, 0, "Charging ID", HFILL }},
{ &hf_gtp_chrg_ipv4, { "CG address IPv4", "gtp.chrg_ipv4", FT_IPv4, BASE_DEC, NULL, 0, "Charging Gateway address IPv4", HFILL }},
{ &hf_gtp_chrg_ipv6, { "CG address IPv6", "gtp.chrg_ipv6", FT_IPv6, BASE_HEX, 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, VALS(sminmpec_values), 0, "Extension Identifier", HFILL }},
{ &hf_gtp_ext_val, { "Extension value", "gtp.ext_val", FT_BYTES, BASE_HEX, NULL, 0, "Extension Value", HFILL }},
{ &hf_gtp_flags, { "Flags", "gtp.flags", FT_UINT8, BASE_HEX, NULL, 0, "Ver/PT/Spare...", HFILL }},
{ &hf_gtp_flags_ver,
{ "Version", "gtp.flags.version",
FT_UINT8, BASE_DEC, VALS(ver_types), 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,
"Protocol Type", 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, "Flow label", HFILL }},
{ &hf_gtp_flow_sig, { "Flow label Signalling", "gtp.flow_sig", FT_UINT16, BASE_HEX, NULL, 0, "Flow label signalling", HFILL }},
{ &hf_gtp_gsn_addr_len, { "GSN Address Length", "gtp.gsn_addr_len", FT_UINT8, BASE_DEC, NULL, GTP_EXT_GSN_ADDR_LEN_MASK, "GSN Address Length", 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, "GSN Address Type", HFILL }},
{ &hf_gtp_gsn_ipv4, { "GSN address IPv4", "gtp.gsn_ipv4", FT_IPv4, BASE_DEC, NULL, 0, "GSN address IPv4", HFILL }},
{ &hf_gtp_gsn_ipv6, { "GSN address IPv6", "gtp.gsn_ipv6", FT_IPv6, BASE_DEC, NULL, 0, "GSN address IPv6", HFILL }},
{ &hf_gtp_imsi, { "IMSI", "gtp.imsi", FT_STRING, BASE_DEC, 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, "MAP cause", HFILL }},
{ &hf_gtp_message_type, { "Message Type", "gtp.message", FT_UINT8, BASE_HEX, VALS(message_type), 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, "MS Not Reachable Reason", HFILL }},
{ &hf_gtp_ms_valid, { "MS validated", "gtp.ms_valid", FT_BOOLEAN, BASE_NONE,NULL, 0, "MS validated", HFILL }},
{ &hf_gtp_msisdn, { "MSISDN", "gtp.msisdn", FT_STRING, BASE_DEC, NULL, 0, "MS international PSTN/ISDN number", HFILL }},
{ &hf_gtp_next, { "Next extension header type", "gtp.next", FT_UINT8, BASE_HEX, NULL, 0, "Next Extension Header Type", HFILL }},
{ &hf_gtp_node_ipv4, { "Node address IPv4", "gtp.node_ipv4", FT_IPv4, BASE_DEC, NULL, 0, "Recommended node address IPv4", HFILL }},
{ &hf_gtp_node_ipv6, { "Node address IPv6", "gtp.node_ipv6", FT_IPv6, BASE_HEX, NULL, 0, "Recommended node address IPv6", HFILL }},
{ &hf_gtp_npdu_number, { "N-PDU Number", "gtp.npdu_number", FT_UINT8, BASE_HEX, NULL, 0, "N-PDU Number", 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_DEC, NULL, 0, "Version of the QoS Profile", HFILL }},
{ &hf_gtp_qos_spare1, { "Spare", "gtp.qos_spare1", FT_UINT8, BASE_DEC, NULL, GTP_EXT_QOS_SPARE1_MASK, "Spare (shall be sent as '00' )", HFILL }},
{ &hf_gtp_qos_delay, { "QoS delay", "gtp.qos_delay", FT_UINT8, BASE_DEC, VALS(qos_delay_type), GTP_EXT_QOS_DELAY_MASK, "Quality of Service Delay Class", HFILL }},
{ &hf_gtp_qos_reliability, { "QoS reliability", "gtp.qos_reliabilty", 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, VALS(qos_mean_type), 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, "Allocation/Retention Priority", 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, "Traffic Class", 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, "Delivery Order", 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, "Delivery of Erroneous SDU", 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, "Maximum SDU size", HFILL }},
{ &hf_gtp_qos_max_ul, { "Maximum bit rate for uplink", "gtp.qos_max_ul", FT_UINT8, BASE_DEC, VALS(qos_max_ul), 0, "Maximum bit rate for uplink", HFILL }},
{ &hf_gtp_qos_max_dl, { "Maximum bit rate for downlink", "gtp.qos_max_dl", FT_UINT8, BASE_DEC, VALS(qos_max_dl), 0, "Maximum bit rate for downlink", 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, "SDU Error Ratio", HFILL }},
{ &hf_gtp_qos_trans_delay, { "Transfer delay", "gtp.qos_trans_delay", FT_UINT8, BASE_DEC, VALS(qos_trans_delay), GTP_EXT_QOS_TRANS_DELAY_MASK, "Transfer Delay", 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, "Traffic Handling Priority", HFILL }},
{ &hf_gtp_qos_guar_ul, { "Guaranteed bit rate for uplink", "gtp.qos_guar_ul", FT_UINT8, BASE_DEC, VALS(qos_guar_ul), 0, "Guaranteed bit rate for uplink", HFILL }},
{ &hf_gtp_qos_guar_dl, { "Guaranteed bit rate for downlink", "gtp.qos_guar_dl", FT_UINT8, BASE_DEC, VALS(qos_guar_dl), 0, "Guaranteed bit rate for downlink", HFILL }},
{ &hf_gtp_pkt_flow_id, { "Packet Flow ID", "gtp.pkt_flow_id", FT_UINT8, BASE_DEC, NULL, 0, "Packet Flow ID", 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, "P-TMSI Signature", 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, VALS(ranap_cause_type), 0, "RANAP cause", 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, 0, "Reordering required", HFILL }},
{ &hf_gtp_rnc_ipv4, { "RNC address IPv4", "gtp.rnc_ipv4", FT_IPv4, BASE_DEC, NULL, 0, "Radio Network Controller address IPv4", HFILL }},
{ &hf_gtp_rnc_ipv6, { "RNC address IPv6", "gtp.rnc_ipv6", FT_IPv6, BASE_HEX, 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,
"Selection Mode", HFILL }
},
{ &hf_gtp_seq_number, { "Sequence number", "gtp.seq_number", FT_UINT16, BASE_HEX, NULL, 0, "Sequence Number", HFILL }},
{ &hf_gtp_sndcp_number, { "SNDCP N-PDU LLC Number", "gtp.sndcp_number", FT_UINT8, BASE_HEX, NULL, 0, "SNDCP N-PDU LLC Number", HFILL }},
{ &hf_gtp_tear_ind, { "Teardown Indicator", "gtp.tear_ind", FT_BOOLEAN, BASE_NONE,NULL, 0, "Teardown Indicator", 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, "TFT operation code", HFILL }},
{ &hf_gtp_tft_spare, { "TFT spare bit", "gtp.tft_spare", FT_UINT8, BASE_DEC, NULL, GTPv1_TFT_SPARE_MASK, "TFT spare bit", HFILL }},
{ &hf_gtp_tft_number, { "Number of packet filters", "gtp.tft_number", FT_UINT8, BASE_DEC, NULL, GTPv1_TFT_NUMBER_MASK, "Number of packet filters", HFILL }},
{ &hf_gtp_tft_eval, { "Evaluation precedence", "gtp.tft_eval", FT_UINT8, BASE_DEC, NULL, 0, "Evaluation precedence", HFILL }},
{ &hf_gtp_tid, { "TID", "gtp.tid", FT_STRING, BASE_DEC, 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, "Trace reference", HFILL }},
{ &hf_gtp_trace_type, { "Trace type", "gtp.trace_type", FT_UINT16, BASE_HEX, NULL, 0, "Trace type", 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, "PDP type organization", 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_DEC, NULL, 0, "End user address IPv4", HFILL }},
{ &hf_gtp_user_ipv6, { "End user address IPv6", "gtp.user_ipv6", FT_IPv6, BASE_HEX, NULL, 0, "End user address IPv6", HFILL }},
{ &hf_gtp_security_mode,
{ "Security Mode", "gtp.security_mode",
FT_UINT8, BASE_DEC, VALS(mm_sec_modep), 0xc0,
"Security Mode", HFILL }
},
{ &hf_gtp_no_of_vectors,
{ "No of Vectors", "gtp.no_of_vectors",
FT_UINT8, BASE_DEC, NULL, 0x38,
"No of Vectors", HFILL }
},
{ &hf_gtp_cipher_algorithm,
{ "Cipher Algorithm", "gtp.no_of_vectors",
FT_UINT8, BASE_DEC, VALS(gtp_cipher_algorithm), 0x07,
"Cipher Algorithm", 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,
"Restriction Type", HFILL }
},
{ &hf_gtp_ext_rat_type,
{ "RAT Type", "gtp.ext_rat_type",
FT_UINT8, BASE_DEC, VALS(gtp_ext_rat_type_vals), 0x0,
"RAT Type", HFILL }
},
{ &hf_gtp_ext_geo_loc_type,
{ "Geographic Location Type", "gtp.ext_geo_loc_type",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Geographic Location Type", HFILL }
},
{ &hf_gtp_ext_sac,
{ "SAC", "gtp.ext_sac",
FT_UINT16, BASE_HEX, NULL, 0x0,
"SAC", HFILL }
},
{ &hf_gtp_ext_imeisv,
{ "IMEI(SV)", "gtp.ext_imeisv",
FT_STRING, BASE_NONE, NULL, 0x0,
"IMEI(SV)", HFILL }
},
{ &hf_gtp_targetid,
{ "TargetID", "gtp.targetid",
FT_UINT32, BASE_DEC, VALS(ranap_TargetID_vals), 0,
"TargetID", HFILL }},
{ &hf_gtp_bssgp_cause,
{ "BSSGP Cause", "gtp.bssgp_cause",
FT_UINT8, BASE_DEC, VALS(tab_cause), 0,
"BSSGP Cause", HFILL }},
{ &hf_gtp_cmn_flg_ppc,
{ "Prohibit Payload Compression", "gtp.cmn_flg.ppc",
FT_BOOLEAN, 8, NULL, 0x01,
"Prohibit Payload Compression", HFILL}},
{ &hf_gtp_cmn_flg_mbs_srv_type,
{ "MBMS Service Type", "gtp.cmn_flg.mbs_srv_type",
FT_BOOLEAN, 8, NULL, 0x02,
"MBMS Service Type", HFILL}},
{ &hf_gtp_cmn_flg_mbs_ran_pcd_rdy,
{ "RAN Procedures Ready", "gtp.cmn_flg.ran_pcd_rd",
FT_BOOLEAN, 8, NULL, 0x04,
"RAN Procedures Ready", HFILL}},
{ &hf_gtp_cmn_flg_mbs_cnt_inf,
{ "MBMS Counting Information", "gtp.cmn_flg.mbs_cnt_inf",
FT_BOOLEAN, 8, NULL, 0x08,
"MBMS Counting Information", HFILL}},
{ &hf_gtp_cmn_flg_nrsn,
{ "NRSN bit field", "gtp.cmn_flg.nrsn",
FT_BOOLEAN, 8, NULL, 0x10,
"NRSN bit field", HFILL}},
{ &hf_gtp_cmn_flg_no_qos_neg,
{ "No QoS negotiation", "gtp.cmn_flg.no_qos_neg",
FT_BOOLEAN, 8, NULL, 0x20,
"No QoS negotiation", HFILL}},
{ &hf_gtp_cmn_flg_upgrd_qos_sup,
{ "Upgrade QoS Supported", "gtp.cmn_flg.ran_pcd_rd",
FT_BOOLEAN, 8, NULL, 0x40,
"Upgrade QoS Supported", HFILL}},
{ &hf_gtp_tmgi,
{ "Temporary Mobile Group Identity (TMGI)", "gtp.cmn_flg.ran_pcd_rd",
FT_BYTES, BASE_HEX, NULL, 0x0,
"Temporary Mobile Group Identity (TMGI)", 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,
"Estimated session duration days", HFILL }
},
{ &hf_gtp_mbms_ses_dur_s,
{ "Estimated session duration seconds", "gtp.mbms_ses_dur_s",
FT_UINT24, BASE_DEC, NULL, 0x01ffff,
"Estimated session duration seconds", HFILL }
},
{ &hf_gtp_mbms_sa_code,
{ "MBMS service area code", "gtp.mbms_sa_code",
FT_UINT16, BASE_DEC, NULL, 0x0,
"MBMS service area code", 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,
"MBMS 2G/3G Indicator", HFILL }
},
{ &hf_gtp_time_2_dta_tr,
{ "Time to MBMS Data Transfer", "gtp.time_2_dta_tr",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Time to MBMS Data Transfer", 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_target_id,
&ett_gtp_utran_cont,
};
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 port", "GTPv0 port (default 3386)", 10, &g_gtpv0_port);
prefs_register_uint_preference(gtp_module, "v1c_port", "GTPv1 control plane (GTP-C) port", "GTPv1 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", &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", &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", &gtp_over_tcp);
register_dissector("gtp", dissect_gtp, proto_gtp);
}
void
proto_reg_handoff_gtp(void)
{
static int Initialized = FALSE;
static dissector_handle_t gtp_handle;
if (!Initialized) {
gtp_handle = find_dissector("gtp");
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,21,dissect_radius_rat_type);
radius_register_avp_dissector(VENDOR_THE3GPP,22,dissect_radius_user_loc);
Initialized = TRUE;
} else {
dissector_delete ("udp.port", gtpv0_port, gtp_handle);
dissector_delete ("udp.port", gtpv1c_port, gtp_handle);
dissector_delete ("udp.port", gtpv1u_port, gtp_handle);
if ( !gtp_over_tcp ) {
dissector_delete ("tcp.port", gtpv0_port, gtp_handle);
dissector_delete ("tcp.port", gtpv1c_port, gtp_handle);
dissector_delete ("tcp.port", gtpv1u_port, gtp_handle);
}
}
gtpv0_port = g_gtpv0_port;
gtpv1c_port = g_gtpv1c_port;
gtpv1u_port = g_gtpv1u_port;
dissector_add ("udp.port", g_gtpv0_port, gtp_handle);
dissector_add ("udp.port", g_gtpv1c_port, gtp_handle);
dissector_add ("udp.port", g_gtpv1u_port, gtp_handle);
if ( gtp_over_tcp ) {
dissector_add ("tcp.port", g_gtpv0_port, gtp_handle);
dissector_add ("tcp.port", g_gtpv1c_port, gtp_handle);
dissector_add ("tcp.port", g_gtpv1u_port, gtp_handle);
}
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");
bssap_pdu_type_table = find_dissector_table("bssap.pdu_type");
/* AVP Code: 904 MBMS-Session-Duration */
dissector_add("diameter.3gpp", 904, new_create_dissector_handle(dissect_gtp_mbms_ses_dur, proto_gtp));
/* AVP Code: 911 MBMS-Time-To-Data-Transfer */
dissector_add("diameter.3gpp", 911, new_create_dissector_handle(dissect_gtp_mbms_time_to_data_tr, proto_gtp));
}
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