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/* packet-gtp.c
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*
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* Routines for GTP dissection
* Copyright 2001 , Michal Melerowicz < michal . melerowicz @ nokia . com >
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* Nicolas Balkota < balkota @ mac . com >
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*
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* $ Id : packet - gtp . c , v 1.24 2002 / 01 / 31 12 : 10 : 58 guy Exp $
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*
* Ethereal - Network traffic analyzer
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* By Gerald Combs < gerald @ ethereal . com >
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* Copyright 1998 Gerald Combs
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*
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* 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 .
*/
# ifdef HAVE_CONFIG_H
# include "config.h"
# endif
# include <stdio.h>
# include <stdlib.h>
# include <string.h>
# ifdef HAVE_SYS_TYPES_H
# include <sys / types.h>
# endif
# ifdef HAVE_NETINET_IN_H
# include <netinet / in.h>
# endif
# include <glib.h>
# ifdef NEED_SNPRINTF_H
# include "snprintf.h"
# endif
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# include <epan/packet.h>
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# include "packet-ipv6.h"
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# include "prefs.h"
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/*
* All data related to GTP v0 ( GPRS ) uses " gtpv0 " or " GTPv0 " ,
* all data related to GTP v1 ( UMTS ) uses " gtpv1 " or " GTPv1 " ,
* if there is any gtp alone statement it means that this data is common
* for both : GPRS and UMTS
*/
# define GTPv0_PORT 3386
# define GTPv1C_PORT 2123 /* 3G Control PDU */
# define GTPv1U_PORT 2152 /* 3G T-PDU */
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# define GTPv0_HDR_LENGTH 20
# define GTPv1_HDR_LENGTH 12
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/* for function checking compliance with ETSI */
# define MANDATORY 1
# define OPTIONAL 2
# define CONDITIONAL 4
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static int g_gtpv0_port = GTPv0_PORT ;
static int g_gtpv1c_port = GTPv1C_PORT ;
static int g_gtpv1u_port = GTPv1U_PORT ;
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void proto_reg_handoff_gtp ( void ) ;
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static int proto_gtpv0 = - 1 ;
static int proto_gtpv1 = - 1 ;
static int hf_gtpv0_flags = - 1 ;
static int hf_gtpv0_flags_ver = - 1 ;
static int hf_gtpv0_flags_pt = - 1 ;
static int hf_gtpv0_flags_spare = - 1 ;
static int hf_gtpv0_flags_e = - 1 ;
static int hf_gtpv0_flags_s = - 1 ;
static int hf_gtpv0_flags_pn = - 1 ;
static int hf_gtpv0_flags_snn = - 1 ;
static int hf_gtpv0_message_type = - 1 ;
static int hf_gtpv0_length = - 1 ;
static int hf_gtpv0_seq_number = - 1 ;
static int hf_gtpv0_flow_label = - 1 ;
static int hf_gtpv0_sndcp_number = - 1 ;
static int hf_gtpv0_npdu_number = - 1 ;
static int hf_gtpv0_tid = - 1 ;
static int hf_gtpv0_teid = - 1 ;
static int hf_gtpv0_next = - 1 ;
static int hf_gtpv0_cause = - 1 ;
static int hf_gtpv0_imsi = - 1 ;
static int hf_gtpv0_rai_mcc = - 1 ;
static int hf_gtpv0_rai_mnc = - 1 ;
static int hf_gtpv0_rai_rac = - 1 ;
static int hf_gtpv0_rai_lac = - 1 ;
static int hf_gtpv0_tlli = - 1 ;
static int hf_gtpv0_ptmsi = - 1 ;
static int hf_gtpv0_qos_spare1 = - 1 ;
static int hf_gtpv0_qos_delay = - 1 ;
static int hf_gtpv0_qos_mean = - 1 ;
static int hf_gtpv0_qos_peak = - 1 ;
static int hf_gtpv0_qos_spare2 = - 1 ;
static int hf_gtpv0_qos_precedence = - 1 ;
static int hf_gtpv0_qos_spare3 = - 1 ;
static int hf_gtpv0_qos_reliability = - 1 ;
static int hf_gtpv0_reorder = - 1 ;
static int hf_gtpv0_map_cause = - 1 ;
static int hf_gtpv0_ptmsi_sig = - 1 ;
static int hf_gtpv0_ms_valid = - 1 ;
static int hf_gtpv0_recovery = - 1 ;
static int hf_gtpv0_sel_mode = - 1 ;
static int hf_gtpv0_ext_flow_label = - 1 ;
static int hf_gtpv0_teid_data = - 1 ; /* 3G */
static int hf_gtpv0_flow_sig = - 1 ;
static int hf_gtpv0_teid_cp = - 1 ; /* 3G */
static int hf_gtpv0_nsapi = - 1 ;
static int hf_gtpv0_flow_ii = - 1 ;
static int hf_gtpv0_teid_ii = - 1 ; /* 3G */
static int hf_gtpv0_ms_reason = - 1 ;
static int hf_gtpv0_tear_ind = - 1 ; /* 3G */
static int hf_gtpv0_ranap_cause = - 1 ; /* 3G */
static int hf_gtpv0_rab_gtpu_dn = - 1 ; /* 3G */
static int hf_gtpv0_rab_gtpu_up = - 1 ; /* 3G */
static int hf_gtpv0_rab_pdu_dn = - 1 ; /* 3G */
static int hf_gtpv0_rab_pdu_up = - 1 ; /* 3G */
static int hf_gtpv0_rp_sms = - 1 ; /* 3G */
static int hf_gtpv0_rp_spare = - 1 ; /* 3G */
static int hf_gtpv0_rp_nsapi = - 1 ; /* 3G */
static int hf_gtpv0_rp = - 1 ; /* 3G */
static int hf_gtpv0_pkt_flow_id = - 1 ; /* 3G */
static int hf_gtpv0_chrg_char_s = - 1 ; /* 3G */
static int hf_gtpv0_chrg_char_n = - 1 ; /* 3G */
static int hf_gtpv0_chrg_char_p = - 1 ; /* 3G */
static int hf_gtpv0_chrg_char_f = - 1 ; /* 3G */
static int hf_gtpv0_chrg_char_h = - 1 ; /* 3G */
static int hf_gtpv0_chrg_char_r = - 1 ; /* 3G */
static int hf_gtpv0_trace_ref = - 1 ; /* 3G */
static int hf_gtpv0_trace_type = - 1 ; /* 3G */
static int hf_gtpv0_tr_comm = - 1 ; /* charging */
static int hf_gtpv0_chrg_id = - 1 ;
static int hf_gtpv0_user_ipv4 = - 1 ;
static int hf_gtpv0_user_ipv6 = - 1 ;
static int hf_gtpv0_user_addr_pdp_org = - 1 ;
static int hf_gtpv0_user_addr_pdp_type = - 1 ;
static int hf_gtpv0_apn = - 1 ;
static int hf_gtpv0_gsn_ipv4 = - 1 ;
static int hf_gtpv0_gsn_ipv6 = - 1 ;
static int hf_gtpv0_gsn_addr_type = - 1 ;
static int hf_gtpv0_gsn_addr_len = - 1 ;
static int hf_gtpv0_msisdn = - 1 ;
static int hf_gtpv0_qos_al_ret_priority = - 1 ;
static int hf_gtpv0_qos_traf_class = - 1 ;
static int hf_gtpv0_qos_del_order = - 1 ;
static int hf_gtpv0_qos_del_err_sdu = - 1 ;
static int hf_gtpv0_qos_max_sdu_size = - 1 ;
static int hf_gtpv0_qos_max_ul = - 1 ;
static int hf_gtpv0_qos_max_dl = - 1 ;
static int hf_gtpv0_qos_res_ber = - 1 ;
static int hf_gtpv0_qos_sdu_err_ratio = - 1 ;
static int hf_gtpv0_qos_trans_delay = - 1 ;
static int hf_gtpv0_qos_traf_handl_prio = - 1 ;
static int hf_gtpv0_qos_guar_ul = - 1 ;
static int hf_gtpv0_qos_guar_dl = - 1 ;
static int hf_gtpv0_rnc_ipv4 = - 1 ;
static int hf_gtpv0_rnc_ipv6 = - 1 ;
static int hf_gtpv0_chrg_ipv4 = - 1 ;
static int hf_gtpv0_chrg_ipv6 = - 1 ;
static int hf_gtpv0_node_ipv4 = - 1 ;
static int hf_gtpv0_node_ipv6 = - 1 ;
static int hf_gtpv0_ext_id = - 1 ;
static int hf_gtpv0_ext_val = - 1 ;
static int hf_gtpv0_unknown = - 1 ;
static int hf_gtpv1_flags = - 1 ;
static int hf_gtpv1_flags_ver = - 1 ;
static int hf_gtpv1_flags_pt = - 1 ;
static int hf_gtpv1_flags_spare = - 1 ;
static int hf_gtpv1_flags_e = - 1 ;
static int hf_gtpv1_flags_s = - 1 ;
static int hf_gtpv1_flags_pn = - 1 ;
static int hf_gtpv1_flags_snn = - 1 ;
static int hf_gtpv1_message_type = - 1 ;
static int hf_gtpv1_length = - 1 ;
static int hf_gtpv1_seq_number = - 1 ;
static int hf_gtpv1_flow_label = - 1 ;
static int hf_gtpv1_sndcp_number = - 1 ;
static int hf_gtpv1_npdu_number = - 1 ;
static int hf_gtpv1_tid = - 1 ;
static int hf_gtpv1_teid = - 1 ;
static int hf_gtpv1_next = - 1 ;
static int hf_gtpv1_cause = - 1 ;
static int hf_gtpv1_imsi = - 1 ;
static int hf_gtpv1_rai_mcc = - 1 ;
static int hf_gtpv1_rai_mnc = - 1 ;
static int hf_gtpv1_rai_rac = - 1 ;
static int hf_gtpv1_rai_lac = - 1 ;
static int hf_gtpv1_tlli = - 1 ;
static int hf_gtpv1_ptmsi = - 1 ;
static int hf_gtpv1_qos_spare1 = - 1 ;
static int hf_gtpv1_qos_delay = - 1 ;
static int hf_gtpv1_qos_mean = - 1 ;
static int hf_gtpv1_qos_peak = - 1 ;
static int hf_gtpv1_qos_spare2 = - 1 ;
static int hf_gtpv1_qos_precedence = - 1 ;
static int hf_gtpv1_qos_spare3 = - 1 ;
static int hf_gtpv1_qos_reliability = - 1 ;
static int hf_gtpv1_reorder = - 1 ;
static int hf_gtpv1_map_cause = - 1 ;
static int hf_gtpv1_ptmsi_sig = - 1 ;
static int hf_gtpv1_ms_valid = - 1 ;
static int hf_gtpv1_recovery = - 1 ;
static int hf_gtpv1_sel_mode = - 1 ;
static int hf_gtpv1_ext_flow_label = - 1 ;
static int hf_gtpv1_teid_data = - 1 ; /* 3G */
static int hf_gtpv1_flow_sig = - 1 ;
static int hf_gtpv1_teid_cp = - 1 ; /* 3G */
static int hf_gtpv1_nsapi = - 1 ;
static int hf_gtpv1_flow_ii = - 1 ;
static int hf_gtpv1_teid_ii = - 1 ; /* 3G */
static int hf_gtpv1_ms_reason = - 1 ;
static int hf_gtpv1_tear_ind = - 1 ; /* 3G */
static int hf_gtpv1_ranap_cause = - 1 ; /* 3G */
static int hf_gtpv1_rab_gtpu_dn = - 1 ; /* 3G */
static int hf_gtpv1_rab_gtpu_up = - 1 ; /* 3G */
static int hf_gtpv1_rab_pdu_dn = - 1 ; /* 3G */
static int hf_gtpv1_rab_pdu_up = - 1 ; /* 3G */
static int hf_gtpv1_rp_sms = - 1 ; /* 3G */
static int hf_gtpv1_rp_spare = - 1 ; /* 3G */
static int hf_gtpv1_rp_nsapi = - 1 ; /* 3G */
static int hf_gtpv1_rp = - 1 ; /* 3G */
static int hf_gtpv1_pkt_flow_id = - 1 ; /* 3G */
static int hf_gtpv1_chrg_char_s = - 1 ; /* 3G */
static int hf_gtpv1_chrg_char_n = - 1 ; /* 3G */
static int hf_gtpv1_chrg_char_p = - 1 ; /* 3G */
static int hf_gtpv1_chrg_char_f = - 1 ; /* 3G */
static int hf_gtpv1_chrg_char_h = - 1 ; /* 3G */
static int hf_gtpv1_chrg_char_r = - 1 ; /* 3G */
static int hf_gtpv1_trace_ref = - 1 ; /* 3G */
static int hf_gtpv1_trace_type = - 1 ; /* 3G */
static int hf_gtpv1_tr_comm = - 1 ; /* charging */
static int hf_gtpv1_chrg_id = - 1 ;
static int hf_gtpv1_user_ipv4 = - 1 ;
static int hf_gtpv1_user_ipv6 = - 1 ;
static int hf_gtpv1_user_addr_pdp_org = - 1 ;
static int hf_gtpv1_user_addr_pdp_type = - 1 ;
static int hf_gtpv1_apn = - 1 ;
static int hf_gtpv1_gsn_ipv4 = - 1 ;
static int hf_gtpv1_gsn_ipv6 = - 1 ;
static int hf_gtpv1_gsn_addr_type = - 1 ;
static int hf_gtpv1_gsn_addr_len = - 1 ;
static int hf_gtpv1_msisdn = - 1 ;
static int hf_gtpv1_qos_al_ret_priority = - 1 ;
static int hf_gtpv1_qos_traf_class = - 1 ;
static int hf_gtpv1_qos_del_order = - 1 ;
static int hf_gtpv1_qos_del_err_sdu = - 1 ;
static int hf_gtpv1_qos_max_sdu_size = - 1 ;
static int hf_gtpv1_qos_max_ul = - 1 ;
static int hf_gtpv1_qos_max_dl = - 1 ;
static int hf_gtpv1_qos_res_ber = - 1 ;
static int hf_gtpv1_qos_sdu_err_ratio = - 1 ;
static int hf_gtpv1_qos_trans_delay = - 1 ;
static int hf_gtpv1_qos_traf_handl_prio = - 1 ;
static int hf_gtpv1_qos_guar_ul = - 1 ;
static int hf_gtpv1_qos_guar_dl = - 1 ;
static int hf_gtpv1_rnc_ipv4 = - 1 ;
static int hf_gtpv1_rnc_ipv6 = - 1 ;
static int hf_gtpv1_chrg_ipv4 = - 1 ;
static int hf_gtpv1_chrg_ipv6 = - 1 ;
static int hf_gtpv1_node_ipv4 = - 1 ;
static int hf_gtpv1_node_ipv6 = - 1 ;
static int hf_gtpv1_ext_id = - 1 ;
static int hf_gtpv1_ext_val = - 1 ;
static int hf_gtpv1_unknown = - 1 ;
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/* Initialize the subtree pointers */
static gint ett_gtp = - 1 ;
static gint ett_gtp_flags = - 1 ;
static gint ett_gtp_ext = - 1 ;
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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_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 ;
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/* Definition of user preferences panel fields */
# define DONT_DISSECT_CDRS 2
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static gboolean gtp_tpdu = TRUE ;
static gint gtpv0_cdr_as = DONT_DISSECT_CDRS ; /* 2 = do not dissect */
static gboolean gtpv0_etsi_order = FALSE ;
static gboolean gtpv1_etsi_order = FALSE ;
static int gtpv0_port = 0 ;
static int gtpv1c_port = 0 ;
static int gtpv1u_port = 0 ;
static gboolean ppp_reorder = TRUE ;
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/* Definition of flags masks */
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# define GTP_VER_MASK 0xE0
static const value_string ver_types [ ] = {
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{ 0 , " GTP release 97/98 version " } ,
{ 1 , " GTP release 99 version " } ,
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{ 2 , " None " } ,
{ 3 , " None " } ,
{ 4 , " None " } ,
{ 5 , " None " } ,
{ 6 , " None " } ,
{ 7 , " None " } ,
{ 0 , NULL }
} ;
# define GTP_PT_MASK 0x10
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# define GTP_SPARE_MASK 0x0E
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# define GTPv1_SPARE_MASK 0x08
# define GTPv1_E_MASK 0x04
# define GTPv1_S_MASK 0x02
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# define GTP_SNN_MASK 0x01
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# define GTPv1_PN_MASK 0x01
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/* Definition of 3G charging characteristics masks */
# define GTP_MASK_CHRG_CHAR_S 0xF000
# define GTP_MASK_CHRG_CHAR_N 0x0800
# define GTP_MASK_CHRG_CHAR_P 0x0400
# define GTP_MASK_CHRG_CHAR_F 0x0200
# define GTP_MASK_CHRG_CHAR_H 0x0100
# define GTP_MASK_CHRG_CHAR_R 0x00FF
/* Definition of GSN Address masks */
# define GTP_EXT_GSN_ADDR_TYPE_MASK 0xC0
# define GTP_EXT_GSN_ADDR_LEN_MASK 0x3F
/* Definition of QoS masks */
# define GTP_EXT_QOS_SPARE1_MASK 0xC0
# define GTP_EXT_QOS_DELAY_MASK 0x38
# define GTP_EXT_QOS_RELIABILITY_MASK 0x07
# define GTP_EXT_QOS_PEAK_MASK 0xF0
# define GTP_EXT_QOS_SPARE2_MASK 0x08
# define GTP_EXT_QOS_PRECEDENCE_MASK 0x07
# define GTP_EXT_QOS_SPARE3_MASK 0xE0
# define GTP_EXT_QOS_MEAN_MASK 0x1F
# define GTP_EXT_QOS_TRAF_CLASS_MASK 0xE0
# define GTP_EXT_QOS_DEL_ORDER_MASK 0x18
# define GTP_EXT_QOS_DEL_ERR_SDU_MASK 0x07
# define GTP_EXT_QOS_RES_BER_MASK 0xF0
# define GTP_EXT_QOS_SDU_ERR_RATIO_MASK 0x0F
# define GTP_EXT_QOS_TRANS_DELAY_MASK 0xFC
# define GTP_EXT_QOS_TRAF_HANDL_PRIORITY_MASK 0x03
/* Definition of Radio Priority's masks */
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# define GTPv1_EXT_RP_NSAPI_MASK 0xF0
# define GTPv1_EXT_RP_SPARE_MASK 0x08
# define GTPv1_EXT_RP_MASK 0x07
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/* 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
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# 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 */
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# 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
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# define GTP_MSG_SUPP_EXT_HDR 0x1F
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# 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
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# define GTP_MSG_SGSN_CNTXT_REQ 0x32
# define GTP_MSG_SGSN_CNTXT_RESP 0x33
# define GTP_MSG_SGSN_CNTXT_ACK 0x34
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# 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
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# define GTP_MSG_FORW_SRNS_CNTXT 0x3A
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# define GTP_MSG_FORW_RELOC_ACK 0x3B
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# define GTP_MSG_FORW_SRNS_CNTXT_ACK 0x3C
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# define GTP_MSG_DATA_TRANSF_REQ 0xF0
# define GTP_MSG_DATA_TRANSF_RESP 0xF1
# 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 " } ,
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{ GTP_MSG_DELETE_PDP_RESP , " Delete PDP context response " } ,
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{ 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 " } ,
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{ GTP_MSG_SUPP_EXT_HDR , " Supported extension header notification " } ,
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{ 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 " } ,
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{ GTP_MSG_SGSN_CNTXT_REQ , " SGSN context request " } ,
{ GTP_MSG_SGSN_CNTXT_RESP , " SGSN context response " } ,
{ GTP_MSG_SGSN_CNTXT_ACK , " SGSN context acknowledgement " } ,
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{ 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 " } ,
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{ GTP_MSG_FORW_SRNS_CNTXT , " Forward SRNS context " } ,
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{ GTP_MSG_FORW_RELOC_ACK , " Forward relocation complete acknowledge " } ,
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{ GTP_MSG_FORW_SRNS_CNTXT_ACK , " Forward SRNS context acknowledge " } ,
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{ 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
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# define GTP_EXT_QOS_GPRS 0x06
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# define GTP_EXT_REORDER 0x08
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# define GTP_EXT_AUTH_TRI 0x09
# define GTP_EXT_MAP_CAUSE 0x0B
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# define GTP_EXT_PTMSI_SIG 0x0C
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# define GTP_EXT_MS_VALID 0x0D
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# define GTP_EXT_RECOVER 0x0E
# define GTP_EXT_SEL_MODE 0x0F
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# 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
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# define GTP_EXT_MS_REASON 0x13 /* same as 0x1D GTPv1_EXT_MS_REASON */
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# define GTP_EXT_TEAR_IND 0x13 /* 0xFF13 3G*/
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# define GTP_EXT_NSAPI 0x14 /* 3G */
# define GTP_EXT_RANAP_CAUSE 0x15 /* 3G */
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# define GTP_EXT_RAB_CNTXT 0x16 /* 3G */
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# 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 */
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# define GTPv1_EXT_MS_REASON 0x1D /* 3G */
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# define GTP_EXT_TR_COMM 0x7E /* charging */
# define GTP_EXT_CHRG_ID 0x7F
# define GTP_EXT_USER_ADDR 0x80
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# define GTP_EXT_MM_CNTXT 0x81
# define GTP_EXT_PDP_CNTXT 0x82
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# define GTP_EXT_APN 0x83
# define GTP_EXT_PROTO_CONF 0x84
# define GTP_EXT_GSN_ADDR 0x85
# define GTP_EXT_MSISDN 0x86
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# define GTP_EXT_QOS_UMTS 0x87 /* 3G */
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# define GTP_EXT_AUTH_QUI 0x88 /* 3G */
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# define GTP_EXT_TFT 0x89 /* 3G */
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# 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 */
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# define GTP_EXT_OMC_ID 0x8F /* 3G */
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# define GTP_EXT_REL_PACK 0xF9 /* charging */
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# define GTP_EXT_CAN_PACK 0xFA /* charging */
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# define GTP_EXT_CHRG_ADDR 0xFB
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# define GTP_EXT_DATA_REQ 0xFC /* charging */
# define GTP_EXT_DATA_RESP 0xFD /* charging */
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# define GTP_EXT_NODE_ADDR 0xFE /* charging */
# define GTP_EXT_PRIV_EXT 0xFF
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static const value_string gtp_val [ ] = {
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{ GTP_EXT_CAUSE , " Cause of operation " } ,
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{ GTP_EXT_IMSI , " IMSI " } ,
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{ GTP_EXT_RAI , " Routing Area Identity " } ,
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{ GTP_EXT_TLLI , " Temporary Logical Link Identity " } ,
{ GTP_EXT_PTMSI , " Packet TMSI " } ,
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{ GTP_EXT_QOS_GPRS , " Quality of Service " } ,
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{ GTP_EXT_REORDER , " Reorder required " } ,
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{ GTP_EXT_AUTH_TRI , " Authentication triplets " } ,
{ GTP_EXT_MAP_CAUSE , " MAP cause " } ,
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{ GTP_EXT_PTMSI_SIG , " P-TMSI signature " } ,
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{ GTP_EXT_MS_VALID , " MS validated " } ,
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{ GTP_EXT_RECOVER , " Recovery " } ,
{ GTP_EXT_SEL_MODE , " Selection mode " } ,
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{ GTP_EXT_16 , " Flow label data I " } ,
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{ GTP_EXT_FLOW_LABEL , " Flow label data I " } ,
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{ GTP_EXT_TEID , " Tunnel Endpoint Identifier Data I " } , /* 3G */
{ GTP_EXT_17 , " Flow label signalling " } ,
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{ GTP_EXT_FLOW_SIG , " Flow label signalling " } ,
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{ GTP_EXT_TEID_CP , " Tunnel Endpoint Identifier Data Control Plane " } , /* 3G */
{ GTP_EXT_18 , " Flow label data II " } ,
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{ GTP_EXT_FLOW_II , " Flow label data II " } ,
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{ 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 */
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{ GTPv1_EXT_MS_REASON , " MS not reachable reason " } , /* 3G */
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{ GTP_EXT_TR_COMM , " Packet transfer command " } , /* charging */
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{ GTP_EXT_CHRG_ID , " Charging ID " } ,
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{ 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 " } ,
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{ GTP_EXT_PROTO_CONF , " Protocol configuration options " } ,
{ GTP_EXT_GSN_ADDR , " GSN address " } ,
{ GTP_EXT_MSISDN , " MS international PSTN/ISDN number " } ,
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{ 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_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 " } ,
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{ 0 , NULL }
} ;
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/* GPRS: 9.60 v7.6.0, page 37
* UMTS : 29.060 v4 .0 , page 45
*/
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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 " } ,
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{ 59 , " System failure " } , /* charging */
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{ 60 , " The transmit buffers are becoming full " } , /* charging */
{ 61 , " The receive buffers are becoming full " } , /* charging */
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{ 62 , " Another node is about to go down " } , /* charging */
{ 63 , " This node is about to go down " } , /* charging */
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{ 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 " } ,
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{ 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 " } ,
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{ 252 , " Request related to possibly duplicated packets already fulfilled " } , /* charging */
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{ 253 , " Request already fulfilled " } , /* charging */
{ 254 , " Sequence numbers of released/cancelled packets IE incorrect " } , /* charging */
{ 255 , " Request not fulfilled " } , /* charging */
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{ 0 , NULL }
} ;
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/* GPRS: 9.02 v7.7.0
* UMTS : 29.002 v4 .2 .1 , chapter 17.5 , page 268
* TODO : Check if all map_cause values are included
*/
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static const value_string map_cause_type [ ] = {
{ 1 , " Unknown subscriber " } ,
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{ 8 , " Roaming not allowed " } ,
{ 10 , " Bearer service not provisioned " } ,
{ 11 , " Teleservice not provisioned " } ,
{ 13 , " Call barred " } ,
{ 21 , " Facility not supported " } ,
{ 23 , " Update GPRS location " } ,
{ 24 , " Send routing info for GPRS " } ,
{ 26 , " Note MS present for GPRS " } ,
{ 27 , " Absent subscriber " } ,
{ 34 , " System failure " } ,
{ 35 , " Data missing " } ,
{ 36 , " Unexpected data value " } ,
{ 44 , " Number chenged " } ,
{ 45 , " Busy subscriber " } ,
{ 46 , " No subscriber reply " } ,
{ 48 , " Facility not allowed " } ,
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{ 0 , NULL }
} ;
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static const value_string gsn_addr_type [ ] = {
{ 0x00 , " IPv4 " } ,
{ 0x01 , " IPv6 " } ,
{ 0 , NULL } ,
} ;
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static const value_string pdp_type [ ] = {
{ 0x00 , " X.25 " } ,
{ 0x01 , " PPP " } ,
{ 0x02 , " OSP:IHOSS " } ,
{ 0x21 , " IPv4 " } ,
{ 0x57 , " IPv6 " } ,
{ 0 , NULL }
} ;
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static const value_string pdp_org_type [ ] = {
{ 0 , " ETSI " } ,
{ 1 , " IETF " } ,
{ 0 , NULL }
} ;
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static const value_string qos_delay_type [ ] = {
{ 0x00 , " Subsribed 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 , " Ack GTP/LLC/RLC, Protected data " } ,
{ 0x02 , " Unack GTP, Ack LLC/RLC, Protected data " } ,
{ 0x03 , " Unack GTP/LLC, Ack RLC, Protected data " } ,
{ 0x04 , " Unack GTP/LLC/RLC, Protected data " } ,
{ 0x05 , " Unack 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 " } ,
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/* 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 " } ,
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{ 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) " } ,
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{ 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 " } ,
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{ 0x1E , " Reserved " } ,
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{ 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 }
} ;
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static const value_string qos_traf_handl_prio [ ] = {
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{ 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 }
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} ;
static const value_string sel_mode_type [ ] = {
{ 0 , " MS or network provided APN, subscriber verified " } ,
{ 1 , " MS provided APN, subscription not verified " } ,
{ 2 , " Network provided APN, subscription not verified " } ,
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{ 3 , " For future use (Network provided APN, subscription not verified " } , /* Shall not be sent. If received, shall be sent as value 2 */
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{ 0 , NULL }
} ;
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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 }
} ;
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/* 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 " } ,
/* 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) */
{ 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 }
} ;
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static const value_string mm_proto_disc [ ] = {
{ 0x00 , " Group call control " } ,
{ 0x01 , " Broadcast call control " } ,
{ 0x02 , " PDSS1 " } ,
{ 0x03 , " Call control; call related SS messages " } ,
{ 0x04 , " PDSS2 " } ,
{ 0x05 , " Mobility Management messages for non-GPRS services " } ,
{ 0x06 , " Radio Resource management messages " } ,
{ 0x08 , " Mobility Management messages for GPRS services " } ,
{ 0x09 , " SMS " } ,
{ 0x0A , " Session Management messages " } ,
{ 0x0B , " Non-call related SS messages " } ,
{ 0 , NULL }
} ;
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static const value_string mm_rr_mess [ ] = {
{ 0x3C , " RR initialization request " } ,
{ 0x3B , " Additional assignment " } ,
{ 0x3F , " Immediate assignment " } ,
{ 0x39 , " Immediate assignment extended " } ,
{ 0x3A , " Immediate assignment reject " } ,
{ 0x35 , " Ciphering mode command " } ,
{ 0x32 , " Ciphering mode complete " } ,
{ 0x30 , " Configuration change command " } ,
{ 0x31 , " Configuration change ack " } ,
{ 0x33 , " Configuration change reject " } ,
{ 0x2E , " Assignment command " } ,
{ 0x29 , " Assignment complete " } ,
{ 0x2F , " Assigment failure " } ,
{ 0x2B , " Handover command " } ,
{ 0x2C , " Handover complete " } ,
{ 0x28 , " Handover failure " } ,
{ 0x2D , " Physical information " } ,
{ 0x08 , " RR-cell change order " } ,
{ 0x23 , " PDCH assignment command " } ,
{ 0x0D , " Channel release " } ,
{ 0x0A , " Partial release " } ,
{ 0x0F , " PArtial release complete " } ,
{ 0x21 , " Paging request type 1 " } ,
{ 0x22 , " Paging request type 2 " } ,
{ 0x24 , " Paging request type 3 " } ,
{ 0x27 , " Paging response " } ,
{ 0x20 , " Notification/NCH " } ,
{ 0x25 , " Notification/FACCH " } ,
{ 0x26 , " Reserved " } ,
{ 0x0B , " Reserved " } ,
{ 0x18 , " System information type 8 " } ,
{ 0x19 , " System information type 1 " } ,
{ 0x1A , " System information type 2 " } ,
{ 0x1B , " System information type 3 " } ,
{ 0x1C , " System information type 4 " } ,
{ 0x1D , " System information type 5 " } ,
{ 0x1E , " System information type 6 " } ,
{ 0x1F , " System information type 7 " } ,
{ 0x02 , " System information type 2bis " } ,
{ 0x03 , " System information type 2ter " } ,
{ 0x05 , " System information type 5bis " } ,
{ 0x06 , " System information type 5ter " } ,
{ 0x04 , " System information 9 " } ,
{ 0x00 , " System information 13 " } ,
{ 0x01 , " System information 14 " } ,
{ 0x3D , " System information type 16 " } ,
{ 0x3E , " System information type 17 " } ,
{ 0x10 , " Channel mode modify " } ,
{ 0x12 , " RR status " } ,
{ 0x17 , " Channel mode modify ack " } ,
{ 0x14 , " Frequency redefinition " } ,
{ 0x15 , " Measurement report " } ,
{ 0x16 , " Classmark change " } ,
{ 0x13 , " Classmark enquiry " } ,
{ 0x36 , " Extended measurement report " } ,
{ 0x37 , " Extended measurement order " } ,
{ 0x34 , " GPRS suspension request " } ,
{ 0x09 , " VGCS uplink grant " } ,
{ 0x0E , " Uplink release " } ,
{ 0x0C , " Uplink free " } ,
{ 0x2A , " Uplink busy " } ,
{ 0x11 , " Talker indication " } ,
{ 0 , NULL }
} ;
static const value_string mm_mm_mess [ ] = {
{ 0x01 , " IMSI DETACH INDICATION " } ,
{ 0x02 , " LOCATION UPDATING ACCEPT " } ,
{ 0x04 , " LOCATION UPDATING REJECT " } ,
{ 0x08 , " LOCATION UPDATING REQUEST " } ,
{ 0x11 , " AUTHENTICATION REJECT " } ,
{ 0x12 , " AUTHENTICATION REQUEST " } ,
{ 0x14 , " AUTHENTICATION RESPONSE " } ,
{ 0x18 , " IDENTITY REQUEST " } ,
{ 0x19 , " IDENTITY RESPONSE " } ,
{ 0x1A , " TMSI REALLOCATION COMMAND " } ,
{ 0x1B , " TMSI REALLOCATION COMPLETE " } ,
{ 0x21 , " CM SERVICE ACCEPT " } ,
{ 0x22 , " CM SERVICE REJECT " } ,
{ 0x23 , " CM SERVICE ABORT " } ,
{ 0x24 , " CM SERVICE REQUEST " } ,
{ 0x25 , " CM SERVICE PROMPT " } ,
{ 0x26 , " NOTIFICATION RESPONSE " } ,
{ 0x28 , " CM RE-ESTABLISHMENT REQUEST " } ,
{ 0x29 , " ABORT " } ,
{ 0x30 , " MM NULL " } ,
{ 0x31 , " MM STATUS " } ,
{ 0x32 , " MM INFORMATION " } ,
{ 0 , NULL }
} ;
static const value_string mm_cc_mess [ ] = {
{ 0x00 , " escape to nationally specific " } ,
/*{ 0 x 0 0, "- - - Call establishment messages:" },*/
{ 0x01 , " ALERTING " } ,
{ 0x08 , " CALL CONFIRMED " } ,
{ 0x02 , " CALL PROCEEDING " } ,
{ 0x07 , " CONNECT " } ,
{ 0x0F , " CONNECT ACKNOWLEDGE " } ,
{ 0x0E , " EMERGENCY SETUP " } ,
{ 0x03 , " PROGRESS " } ,
{ 0x04 , " CC-ESTABLISHMENT " } ,
{ 0x06 , " CC-ESTABLISHMENT CONFIRMED " } ,
{ 0x0B , " RECALL " } ,
{ 0x09 , " START CC " } ,
{ 0x05 , " SETUP " } ,
/*{ 0 x 0 1, "- - - Call information phase messages:" },*/
{ 0x17 , " MODIFY " } ,
{ 0x1F , " MODIFY COMPLETE " } ,
{ 0x13 , " MODIFY REJECT " } ,
{ 0x10 , " USER INFORMATION " } ,
{ 0x18 , " HOLD " } ,
{ 0x19 , " HOLD ACKNOWLEDGE " } ,
{ 0x1A , " HOLD REJECT " } ,
{ 0x1C , " RETRIEVE " } ,
{ 0x1D , " RETRIEVE ACKNOWLEDGE " } ,
{ 0x1E , " RETRIEVE REJECT " } ,
/*{ 0 x 1 0, "- - - Call clearing messages:" },*/
{ 0x25 , " DISCONNECT " } ,
{ 0x2D , " RELEASE " } ,
{ 0x2A , " RELEASE COMPLETE " } ,
/*{ 0 x 1 1, "- - - Miscellaneous messages:" },*/
{ 0x39 , " CONGESTION CONTROL " } ,
{ 0x3E , " NOTIFY " } ,
{ 0x3D , " STATUS " } ,
{ 0x34 , " STATUS ENQUIRY " } ,
{ 0x35 , " START DTMF " } ,
{ 0x31 , " STOP DTMF " } ,
{ 0x32 , " STOP DTMF ACKNOWLEDGE " } ,
{ 0x36 , " START DTMF ACKNOWLEDGE " } ,
{ 0x37 , " START DTMF REJECT " } ,
{ 0x3A , " FACILITY " } ,
{ 0 , NULL }
} ;
static const value_string mm_gprs_mess [ ] = {
{ 0x01 , " Attach request " } ,
{ 0x02 , " Attach accept " } ,
{ 0x03 , " Attach complete " } ,
{ 0x04 , " Attach reject " } ,
{ 0x05 , " Detach request " } ,
{ 0x06 , " Detach accept " } ,
{ 0x08 , " Routing area update request " } ,
{ 0x09 , " Routing area update accept " } ,
{ 0x0A , " Routing area update complete " } ,
{ 0x0B , " Routing area update reject " } ,
{ 0x10 , " P-TMSI reallocation command " } ,
{ 0x11 , " P-TMSI reallocation complete " } ,
{ 0x12 , " Authentication and ciphering req " } ,
{ 0x13 , " Authentication and ciphering resp " } ,
{ 0x14 , " Authentication and ciphering rej " } ,
{ 0x15 , " Identity request " } ,
{ 0x16 , " Identity response " } ,
{ 0x20 , " GMM status " } ,
{ 0x21 , " GMM information " } ,
{ 0 , NULL }
} ;
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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 const value_string cdr_close_type [ ] = {
{ 0 , " PDP release " } ,
{ 1 , " Volume limit " } ,
{ 2 , " Time limit " } ,
{ 3 , " SGSN change " } ,
{ 4 , " Max changes " } ,
{ 6 , " Management " } ,
{ 7 , " Abnormal " } ,
{ 0 , NULL }
} ;
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static dissector_handle_t ip_handle ;
static dissector_handle_t ppp_handle ;
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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 ) ;
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static int decode_gtp_recovery ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) ;
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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_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 ) ;
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typedef struct _gtp_opt {
int optcode ;
/* char *name; */
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 } ,
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{ GTP_EXT_QOS_GPRS , decode_gtp_qos_gprs } ,
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{ GTP_EXT_REORDER , decode_gtp_reorder } ,
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{ 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 } ,
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{ GTP_EXT_RECOVER , decode_gtp_recovery } ,
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{ GTP_EXT_SEL_MODE , decode_gtp_sel_mode } ,
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{ 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 } ,
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{ GTPv1_EXT_MS_REASON , decode_gtp_ms_reason } ,
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{ GTP_EXT_TR_COMM , decode_gtp_tr_comm } ,
{ GTP_EXT_CHRG_ID , decode_gtp_chrg_id } ,
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{ GTP_EXT_USER_ADDR , decode_gtp_user_addr } ,
{ GTP_EXT_MM_CNTXT , decode_gtp_mm_cntxt } ,
{ GTP_EXT_PDP_CNTXT , decode_gtp_pdp_cntxt } ,
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{ GTP_EXT_APN , decode_gtp_apn } ,
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{ GTP_EXT_PROTO_CONF , decode_gtp_proto_conf } ,
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{ GTP_EXT_GSN_ADDR , decode_gtp_gsn_addr } ,
{ GTP_EXT_MSISDN , decode_gtp_msisdn } ,
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{ 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 */
{ 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 }
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} ;
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typedef struct {
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guint8 flags ;
guint8 message ;
guint16 length ;
guint16 seq_no ;
guint16 flow_label ;
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guint8 sndcp_no ;
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guint8 spare [ 3 ] ;
guint8 tid [ 8 ] ;
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} _gtpv0_hdr ;
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typedef struct {
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guint8 flags ;
guint8 message ;
guint16 length ;
guint32 teid ;
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} _gtpv1_hdr ;
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struct gcdr_ { /* GCDR 118B */
guint8 imsi [ 8 ] ;
guint32 ggsnaddr ;
guint32 chrgid ;
guint32 sgsnaddr ;
gchar apn [ 63 ] ;
guint8 pdporg ;
guint8 pdptype ;
guint32 pdpaddr ;
guint8 addrflag ;
guint8 qos [ 3 ] ;
guint32 uplink ;
guint32 downlink ;
guint32 timestamp ;
guint32 opening ;
guint32 duration ;
guint8 closecause ;
guint32 seqno ;
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guint8 msisdn [ 9 ] ;
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} gcdr ;
typedef struct change_ {
guint8 change ;
guint32 time1 ;
guint32 time2 ;
guint32 uplink ;
guint32 downlink ;
guint8 qos_req [ 3 ] ;
guint8 qos_neg [ 3 ] ;
} change_t ;
struct _scdr { /* SCDR 277B */
guint16 len ;
guint8 netini ;
guint8 anon ;
guint8 imsilen ;
guint8 imsi [ 8 ] ;
guint8 imei [ 8 ] ;
guint8 msisdnlen ;
guint8 msisdn [ 10 ] ;
guint32 sgsnaddr ;
guint8 msclass_notused [ 12 ] ;
guint8 msclass_caplen ;
guint8 msclass_cap ;
guint16 msclass_capomit ;
guint16 lac ;
guint8 rac ;
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guint16 cid ;
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guint32 chrgid ;
guint32 ggsnaddr ;
gchar apn [ 64 ] ;
guint8 pdporg ;
guint8 pdptype ;
guint32 pdpaddr ;
guint8 listind ;
change_t change [ 5 ] ;
guint32 timestamp ;
guint32 opening ;
guint32 duration ;
guint8 sgsnchange ;
guint8 closecause ;
guint8 diag1 ;
guint8 diag2 ;
guint8 diag3 ;
guint8 diag4 ;
guint32 diag5 ;
guint32 seqno ;
} scdr ;
typedef struct mmchange_ {
guint16 lac ;
guint8 rac ;
guint16 cid ;
guint8 omit [ 8 ] ;
} mmchange_t ;
struct _mcdr { /* MCDR 147B */
guint16 len ;
guint8 imsilen ;
guint8 imsi [ 8 ] ;
guint8 imei [ 8 ] ;
guint8 msisdnlen ;
guint8 msisdn [ 10 ] ;
guint32 sgsnaddr ;
guint8 msclass_notused [ 12 ] ;
guint8 msclass_caplen ;
guint8 msclass_cap ;
guint16 msclass_capomit ;
guint16 lac ;
guint8 rac ;
guint16 cid ;
guint8 change_count ;
mmchange_t change [ 5 ] ;
guint32 timestamp ;
guint32 opening ;
/* guint8 opening[8]; */
guint32 duration ;
guint8 sgsnchange ;
guint8 closecause ;
guint8 diag1 ;
guint8 diag2 ;
guint8 diag3 ;
guint8 diag4 ;
guint32 diag5 ;
guint32 seqno ;
} mcdr ;
struct _socdr { /* SOCDR 80B */
guint16 len ;
guint8 imsilen ;
guint8 imsi [ 8 ] ;
guint8 imei [ 8 ] ;
guint8 msisdnlen ;
guint8 msisdn [ 10 ] ;
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guint8 msclass_notused [ 12 ] ;
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guint8 msclass_caplen ;
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guint8 msclass_cap ;
guint16 msclass_capomit ;
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guint8 serv_centr [ 9 ] ;
guint8 rec_ent [ 9 ] ;
guint16 lac ;
guint8 rac ;
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guint16 cid ;
guint32 time1 ;
guint32 time2 ;
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guint8 messref ;
guint16 smsres ;
} socdr ;
struct _stcdr { /* STCDR 79B */
guint16 len ;
guint8 imsilen ;
guint8 imsi [ 8 ] ;
guint8 imei [ 8 ] ;
guint8 msisdnlen ;
guint8 msisdn [ 10 ] ;
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guint8 msclass_notused [ 12 ] ;
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guint8 msclass_caplen ;
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guint8 msclass_cap ;
guint16 msclass_capomit ;
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guint8 serv_centr [ 9 ] ;
guint8 rec_ent [ 9 ] ;
guint16 lac ;
guint8 rac ;
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guint16 cid ;
guint32 time1 ;
guint32 time2 ;
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guint16 smsres ;
} stcdr ;
guint8 gtp_version = 0 ;
char * yesno [ ] = { " False " , " True " } ;
static void
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col_append_str_gtp ( column_info * cinfo , gint el , gchar * proto_name ) {
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int i ;
int max_len ;
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gchar _tmp [ COL_MAX_LEN ] ;
max_len = COL_MAX_LEN ;
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for ( i = 0 ; i < cinfo - > num_cols ; i + + ) {
if ( cinfo - > fmt_matx [ i ] [ el ] ) {
if ( cinfo - > col_data [ i ] ! = cinfo - > col_buf [ i ] ) {
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strncpy ( cinfo - > col_buf [ i ] , cinfo - > col_data [ i ] , max_len ) ;
cinfo - > col_buf [ i ] [ max_len - 1 ] = ' \0 ' ;
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}
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_tmp [ 0 ] = ' \0 ' ;
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strcat ( _tmp , proto_name ) ;
strcat ( _tmp , " < " ) ;
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strcat ( _tmp , cinfo - > col_buf [ i ] ) ;
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strcat ( _tmp , " > " ) ;
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cinfo - > col_buf [ i ] [ 0 ] = ' \0 ' ;
strcat ( cinfo - > col_buf [ i ] , _tmp ) ;
cinfo - > col_data [ i ] = cinfo - > col_buf [ i ] ;
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}
}
}
static gchar *
id_to_str ( const guint8 * ad ) {
static gchar * str [ 17 ] ;
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gchar * p ;
guint8 bits8to5 , bits4to1 , i ;
static const gchar hex_digits [ 10 ] = " 0123456789 " ;
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p = ( gchar * ) & str [ 17 ] ;
* - - p = ' \0 ' ;
i = 7 ;
for ( ; ; ) {
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bits8to5 = ( ad [ i ] > > 4 ) & 0x0F ;
bits4to1 = ad [ i ] & 0x0F ;
if ( bits8to5 < 0xA ) * - - p = hex_digits [ bits8to5 ] ;
if ( bits4to1 < 0xA ) * - - p = hex_digits [ bits4to1 ] ;
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if ( i = = 0 ) break ;
i - - ;
}
return p ;
}
static gchar *
msisdn_to_str ( const guint8 * ad , int len ) {
static gchar * str [ 17 ] ;
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gchar * p ;
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guint8 bits8to5 , bits4to1 , i ;
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static const gchar hex_digits [ 16 ] = " 0123456789 " ;
p = ( gchar * ) & str [ 0 ] ;
* p = ' + ' ;
i = 1 ;
for ( ; ; ) {
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bits8to5 = ( ad [ i ] > > 4 ) & 0x0F ;
bits4to1 = ad [ i ] & 0x0F ;
if ( bits4to1 < 0xA ) * + + p = hex_digits [ bits4to1 ] ;
if ( bits8to5 < 0xA ) * + + p = hex_digits [ bits8to5 ] ;
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if ( i = = len - 1 ) break ;
i + + ;
}
* + + p = ' \0 ' ;
return ( gchar * ) & str [ 0 ] ;
}
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gchar *
time_int_to_str ( guint32 time )
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{
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nstime_t nstime ;
nstime . secs = time ;
nstime . nsecs = 0 ;
return abs_time_to_str ( & nstime ) ;
}
gchar *
rel_time_int_to_str ( guint32 time )
{
nstime_t nstime ;
nstime . secs = time ;
nstime . nsecs = 0 ;
return rel_time_to_str ( & nstime ) ;
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}
/* Next definitions and function check_field_presence checks if given field
* in GTP packet is compliant with ETSI
*/
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typedef struct _header {
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guint8 code ;
guint8 presence ;
} ext_header ;
typedef struct _message {
guint8 code ;
ext_header fields [ 32 ] ;
} _gtp_mess_items ;
/* ---------------------
* GPRS messages
* - - - - - - - - - - - - - - - - - - - - - */
_gtp_mess_items gprs_mess_items [ ] = {
{
GTP_MSG_ECHO_REQ , {
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_ECHO_RESP , {
{ GTP_EXT_RECOVER , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_VER_NOT_SUPP , {
{ 0 , 0 }
}
} ,
{
GTP_MSG_NODE_ALIVE_REQ , {
{ GTP_EXT_NODE_ADDR , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_NODE_ALIVE_RESP , {
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_REDIR_REQ , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_NODE_ADDR , OPTIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_REDIR_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_CREATE_PDP_REQ , {
{ GTP_EXT_QOS_GPRS , MANDATORY } ,
{ GTP_EXT_RECOVER , OPTIONAL } ,
{ GTP_EXT_SEL_MODE , MANDATORY } ,
{ GTP_EXT_FLOW_LABEL , MANDATORY } ,
{ GTP_EXT_FLOW_SIG , MANDATORY } ,
{ GTP_EXT_MSISDN , MANDATORY } ,
{ GTP_EXT_USER_ADDR , MANDATORY } ,
{ GTP_EXT_APN , MANDATORY } ,
{ GTP_EXT_PROTO_CONF , OPTIONAL } ,
{ GTP_EXT_GSN_ADDR , MANDATORY } ,
{ GTP_EXT_GSN_ADDR , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_CREATE_PDP_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_QOS_GPRS , CONDITIONAL } ,
{ GTP_EXT_REORDER , CONDITIONAL } ,
{ GTP_EXT_RECOVER , OPTIONAL } ,
{ GTP_EXT_FLOW_LABEL , CONDITIONAL } ,
{ GTP_EXT_FLOW_SIG , CONDITIONAL } ,
{ GTP_EXT_CHRG_ID , CONDITIONAL } ,
{ GTP_EXT_USER_ADDR , CONDITIONAL } ,
{ GTP_EXT_PROTO_CONF , OPTIONAL } ,
{ GTP_EXT_GSN_ADDR , CONDITIONAL } ,
{ GTP_EXT_GSN_ADDR , CONDITIONAL } ,
{ GTP_EXT_CHRG_ADDR , OPTIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_UPDATE_PDP_REQ , {
{ GTP_EXT_QOS_GPRS , MANDATORY } ,
{ GTP_EXT_RECOVER , OPTIONAL } ,
{ GTP_EXT_FLOW_LABEL , MANDATORY } ,
{ GTP_EXT_FLOW_SIG , MANDATORY } ,
{ GTP_EXT_GSN_ADDR , MANDATORY } ,
{ GTP_EXT_GSN_ADDR , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 } ,
}
} ,
{
GTP_MSG_UPDATE_PDP_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_QOS_GPRS , CONDITIONAL } ,
{ GTP_EXT_RECOVER , OPTIONAL } ,
{ GTP_EXT_FLOW_LABEL , CONDITIONAL } ,
{ GTP_EXT_FLOW_SIG , CONDITIONAL } ,
{ GTP_EXT_CHRG_ID , CONDITIONAL } ,
{ GTP_EXT_GSN_ADDR , CONDITIONAL } ,
{ GTP_EXT_GSN_ADDR , CONDITIONAL } ,
{ GTP_EXT_CHRG_ADDR , OPTIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_DELETE_PDP_REQ , {
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_DELETE_PDP_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 } ,
}
} ,
{
GTP_MSG_CREATE_AA_PDP_REQ , {
{ GTP_EXT_QOS_GPRS , MANDATORY } ,
{ GTP_EXT_RECOVER , OPTIONAL } ,
{ GTP_EXT_SEL_MODE , MANDATORY } ,
{ GTP_EXT_FLOW_LABEL , MANDATORY } ,
{ GTP_EXT_FLOW_SIG , MANDATORY } ,
{ GTP_EXT_USER_ADDR , MANDATORY } ,
{ GTP_EXT_APN , MANDATORY } ,
{ GTP_EXT_PROTO_CONF , OPTIONAL } ,
{ GTP_EXT_GSN_ADDR , MANDATORY } ,
{ GTP_EXT_GSN_ADDR , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_CREATE_AA_PDP_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_QOS_GPRS , CONDITIONAL } ,
{ GTP_EXT_REORDER , CONDITIONAL } ,
{ GTP_EXT_RECOVER , OPTIONAL } ,
{ GTP_EXT_FLOW_LABEL , CONDITIONAL } ,
{ GTP_EXT_FLOW_SIG , CONDITIONAL } ,
{ GTP_EXT_CHRG_ID , CONDITIONAL } ,
{ GTP_EXT_USER_ADDR , CONDITIONAL } ,
{ GTP_EXT_PROTO_CONF , OPTIONAL } ,
{ GTP_EXT_GSN_ADDR , CONDITIONAL } ,
{ GTP_EXT_GSN_ADDR , CONDITIONAL } ,
{ GTP_EXT_CHRG_ADDR , OPTIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_DELETE_AA_PDP_REQ , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_DELETE_AA_PDP_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_ERR_IND , {
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_PDU_NOTIFY_REQ , {
{ GTP_EXT_USER_ADDR , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_PDU_NOTIFY_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_PDU_NOTIFY_REJ_REQ , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_USER_ADDR , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_PDU_NOTIFY_REJ_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_SEND_ROUT_INFO_REQ , {
{ GTP_EXT_IMSI , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_SEND_ROUT_INFO_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_IMSI , MANDATORY } ,
{ GTP_EXT_MAP_CAUSE , OPTIONAL } ,
{ GTP_EXT_MS_REASON , OPTIONAL } ,
{ GTP_EXT_GSN_ADDR , OPTIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_FAIL_REP_REQ , {
{ GTP_EXT_IMSI , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_FAIL_REP_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_MAP_CAUSE , OPTIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_MS_PRESENT_REQ , {
{ GTP_EXT_IMSI , MANDATORY } ,
{ GTP_EXT_GSN_ADDR , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_MS_PRESENT_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_IDENT_REQ , {
{ GTP_EXT_RAI , MANDATORY } ,
{ GTP_EXT_PTMSI , MANDATORY } ,
{ GTP_EXT_PTMSI_SIG , OPTIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_IDENT_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_IMSI , CONDITIONAL } ,
{ GTP_EXT_AUTH_TRI , OPTIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_SGSN_CNTXT_REQ , {
{ GTP_EXT_IMSI , CONDITIONAL } ,
{ GTP_EXT_RAI , MANDATORY } ,
{ GTP_EXT_TLLI , MANDATORY } ,
{ GTP_EXT_PTMSI_SIG , OPTIONAL } ,
{ GTP_EXT_MS_VALID , OPTIONAL } ,
{ GTP_EXT_FLOW_SIG , MANDATORY } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_SGSN_CNTXT_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_IMSI , CONDITIONAL } ,
{ GTP_EXT_FLOW_SIG , CONDITIONAL } ,
{ GTP_EXT_MM_CNTXT , CONDITIONAL } ,
{ GTP_EXT_PDP_CNTXT , CONDITIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_SGSN_CNTXT_ACK , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_FLOW_II , CONDITIONAL } ,
{ GTP_EXT_GSN_ADDR , CONDITIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_DATA_TRANSF_REQ , {
{ GTP_EXT_TR_COMM , MANDATORY } ,
{ GTP_EXT_DATA_REQ , CONDITIONAL } ,
{ GTP_EXT_REL_PACK , CONDITIONAL } ,
{ GTP_EXT_CAN_PACK , CONDITIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_DATA_TRANSF_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_DATA_RESP , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
0 , {
{ 0 , 0 }
}
}
} ;
/* -----------------------------
* UMTS messages
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
_gtp_mess_items umts_mess_items [ ] = {
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{
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GTP_MSG_ECHO_REQ , {
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_ECHO_RESP , {
{ GTP_EXT_RECOVER , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_VER_NOT_SUPP , {
{ 0 , 0 }
}
} ,
{
GTP_MSG_NODE_ALIVE_REQ , {
{ GTP_EXT_NODE_ADDR , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_NODE_ALIVE_RESP , {
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_REDIR_REQ , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_NODE_ADDR , OPTIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_REDIR_REQ , {
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_CREATE_PDP_REQ , {
{ GTP_EXT_IMSI , CONDITIONAL } ,
{ GTP_EXT_RECOVER , OPTIONAL } ,
{ GTP_EXT_SEL_MODE , CONDITIONAL } ,
{ GTP_EXT_TEID , MANDATORY } ,
{ GTP_EXT_TEID_CP , CONDITIONAL } ,
{ GTP_EXT_NSAPI , MANDATORY } ,
{ GTP_EXT_NSAPI , CONDITIONAL } ,
{ GTP_EXT_CHRG_CHAR , OPTIONAL } ,
{ GTP_EXT_TRACE_REF , OPTIONAL } ,
{ GTP_EXT_TRACE_TYPE , OPTIONAL } ,
{ GTP_EXT_USER_ADDR , CONDITIONAL } ,
{ GTP_EXT_APN , CONDITIONAL } ,
{ GTP_EXT_PROTO_CONF , CONDITIONAL } ,
{ GTP_EXT_GSN_ADDR , MANDATORY } ,
{ GTP_EXT_GSN_ADDR , MANDATORY } ,
{ GTP_EXT_MSISDN , CONDITIONAL } ,
{ GTP_EXT_QOS_UMTS , MANDATORY } ,
{ GTP_EXT_TFT , CONDITIONAL } ,
{ GTP_EXT_TRIGGER_ID , OPTIONAL } ,
{ GTP_EXT_OMC_ID , OPTIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_CREATE_PDP_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_REORDER , CONDITIONAL } ,
{ GTP_EXT_RECOVER , OPTIONAL } ,
{ GTP_EXT_TEID , CONDITIONAL } ,
{ GTP_EXT_TEID_CP , CONDITIONAL } ,
{ GTP_EXT_CHRG_ID , CONDITIONAL } ,
{ GTP_EXT_USER_ADDR , CONDITIONAL } ,
{ GTP_EXT_PROTO_CONF , OPTIONAL } ,
{ GTP_EXT_GSN_ADDR , CONDITIONAL } ,
{ GTP_EXT_GSN_ADDR , CONDITIONAL } ,
{ GTP_EXT_QOS_UMTS , CONDITIONAL } ,
{ GTP_EXT_CHRG_ADDR , OPTIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{ /* checked, SGSN -> GGSN */
GTP_MSG_UPDATE_PDP_REQ , {
{ GTP_EXT_IMSI , CONDITIONAL } ,
{ GTP_EXT_RECOVER , OPTIONAL } ,
{ GTP_EXT_TEID , MANDATORY } ,
{ GTP_EXT_TEID_CP , CONDITIONAL } ,
{ GTP_EXT_NSAPI , MANDATORY } ,
{ GTP_EXT_TRACE_REF , OPTIONAL } ,
{ GTP_EXT_TRACE_TYPE , OPTIONAL } ,
{ GTP_EXT_GSN_ADDR , MANDATORY } ,
{ GTP_EXT_GSN_ADDR , MANDATORY } ,
{ GTP_EXT_QOS_UMTS , MANDATORY } ,
{ GTP_EXT_TFT , OPTIONAL } ,
{ GTP_EXT_TRIGGER_ID , OPTIONAL } ,
{ GTP_EXT_OMC_ID , OPTIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{ /* checked, GGSN -> SGSN */
GTP_MSG_UPDATE_PDP_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_RECOVER , OPTIONAL } ,
{ GTP_EXT_TEID , CONDITIONAL } ,
{ GTP_EXT_TEID_CP , CONDITIONAL } ,
{ GTP_EXT_CHRG_ID , CONDITIONAL } ,
{ GTP_EXT_GSN_ADDR , CONDITIONAL } ,
{ GTP_EXT_GSN_ADDR , CONDITIONAL } ,
{ GTP_EXT_QOS_UMTS , CONDITIONAL } ,
{ GTP_EXT_CHRG_ADDR , OPTIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_DELETE_PDP_REQ , {
{ GTP_EXT_TEAR_IND , CONDITIONAL } ,
{ GTP_EXT_NSAPI , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_DELETE_PDP_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_ERR_IND , {
{ GTP_EXT_TEID , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_PDU_NOTIFY_REQ , {
{ GTP_EXT_IMSI , MANDATORY } ,
{ GTP_EXT_TEID_CP , MANDATORY } ,
{ GTP_EXT_USER_ADDR , MANDATORY } ,
{ GTP_EXT_APN , MANDATORY } ,
{ GTP_EXT_GSN_ADDR , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_PDU_NOTIFY_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_PDU_NOTIFY_REJ_REQ , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_TEID_CP , MANDATORY } ,
{ GTP_EXT_USER_ADDR , MANDATORY } ,
{ GTP_EXT_APN , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_PDU_NOTIFY_REJ_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_SUPP_EXT_HDR , {
{ GTP_EXT_HDR_LIST , MANDATORY } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_SEND_ROUT_INFO_REQ , {
{ GTP_EXT_IMSI , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_SEND_ROUT_INFO_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_IMSI , MANDATORY } ,
{ GTP_EXT_MAP_CAUSE , OPTIONAL } ,
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{ GTPv1_EXT_MS_REASON , OPTIONAL } ,
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{ GTP_EXT_GSN_ADDR , OPTIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_FAIL_REP_REQ , {
{ GTP_EXT_IMSI , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_FAIL_REP_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_MAP_CAUSE , OPTIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_MS_PRESENT_REQ , {
{ GTP_EXT_IMSI , MANDATORY } ,
{ GTP_EXT_GSN_ADDR , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_MS_PRESENT_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_IDENT_REQ , {
{ GTP_EXT_RAI , MANDATORY } ,
{ GTP_EXT_PTMSI , MANDATORY } ,
{ GTP_EXT_PTMSI_SIG , CONDITIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_IDENT_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_IMSI , CONDITIONAL } ,
{ GTP_EXT_AUTH_TRI , CONDITIONAL } ,
{ GTP_EXT_AUTH_QUI , CONDITIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_SGSN_CNTXT_REQ , {
{ GTP_EXT_IMSI , CONDITIONAL } ,
{ GTP_EXT_RAI , MANDATORY } ,
{ GTP_EXT_TLLI , CONDITIONAL } ,
{ GTP_EXT_PTMSI , CONDITIONAL } ,
{ GTP_EXT_PTMSI_SIG , CONDITIONAL } ,
{ GTP_EXT_MS_VALID , OPTIONAL } ,
{ GTP_EXT_TEID_CP , MANDATORY } ,
{ GTP_EXT_GSN_ADDR , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_SGSN_CNTXT_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_IMSI , CONDITIONAL } ,
{ GTP_EXT_TEID_CP , CONDITIONAL } ,
{ GTP_EXT_RP_SMS , OPTIONAL } ,
{ GTP_EXT_RP , OPTIONAL } ,
{ GTP_EXT_PKT_FLOW_ID , OPTIONAL } ,
{ GTP_EXT_MM_CNTXT , CONDITIONAL } ,
{ GTP_EXT_PDP_CNTXT , CONDITIONAL } ,
{ GTP_EXT_GSN_ADDR , CONDITIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_SGSN_CNTXT_ACK , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_TEID_II , CONDITIONAL } ,
{ GTP_EXT_GSN_ADDR , CONDITIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_FORW_RELOC_REQ , {
{ GTP_EXT_IMSI , MANDATORY } ,
{ GTP_EXT_TEID_CP , MANDATORY } ,
{ GTP_EXT_RANAP_CAUSE , MANDATORY } ,
{ GTP_EXT_MM_CNTXT , MANDATORY } ,
{ GTP_EXT_PDP_CNTXT , CONDITIONAL } ,
{ GTP_EXT_GSN_ADDR , MANDATORY } ,
{ GTP_EXT_TARGET_ID , MANDATORY } ,
{ GTP_EXT_UTRAN_CONT , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_FORW_RELOC_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_TEID_CP , CONDITIONAL } ,
{ GTP_EXT_RANAP_CAUSE , CONDITIONAL } ,
{ GTP_EXT_GSN_ADDR , CONDITIONAL } ,
{ GTP_EXT_UTRAN_CONT , OPTIONAL } ,
{ GTP_EXT_RAB_SETUP , CONDITIONAL } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
GTP_MSG_FORW_RELOC_COMP , {
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_RELOC_CANCEL_REQ , {
{ GTP_EXT_IMSI , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_RELOC_CANCEL_RESP , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_FORW_RELOC_ACK , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_FORW_SRNS_CNTXT , {
{ GTP_EXT_RAB_CNTXT , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
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{
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GTP_MSG_FORW_SRNS_CNTXT_ACK , {
{ GTP_EXT_CAUSE , MANDATORY } ,
{ GTP_EXT_PRIV_EXT , OPTIONAL } ,
{ 0 , 0 }
}
} ,
{
0 , {
{ 0 , 0 }
}
}
} ;
static int
check_field_presence ( guint8 message , guint8 field , int * position ) {
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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 = = MANDATORY ) {
return mess_items [ i ] . fields [ ( * position ) + + ] . code ;
} else {
( * position ) + + ;
} }
}
return - 1 ;
}
i + + ;
}
return - 2 ;
}
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/* Decoders of fields in extension headers, each function returns no of bytes from field */
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/* GPRS: 9.60 v7.6.0, chapter
* UMTS : 29.060 v4 .0 , chapter
*/
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static int
decode_gtp_cause ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
guint8 cause ;
cause = tvb_get_guint8 ( tvb , offset + 1 ) ;
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proto_tree_add_uint ( tree , gtp_version ? hf_gtpv1_cause : hf_gtpv0_cause , tvb , offset , 2 , cause ) ;
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return 2 ;
}
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/* GPRS: 9.60 v7.6.0, chapter 7.9.2
* UMTS : 29.060 v4 .0 , chapter 7.7 .2
*/
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static int
decode_gtp_imsi ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
guint8 tid_val [ 8 ] ;
gchar * tid_str ;
tvb_memcpy ( tvb , tid_val , offset + 1 , 8 ) ;
tid_val [ 1 ] = tid_val [ 1 ] & 0x0F ;
tid_str = id_to_str ( tid_val ) ;
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proto_tree_add_string ( tree , gtp_version ? hf_gtpv1_imsi : hf_gtpv0_imsi , tvb , offset , 9 , tid_str ) ;
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return 9 ;
}
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/* GPRS: 9.60 v7.6.0, chapter 7.9.3
* UMTS : 29.060 v4 .0 , chapter 7.7 .3
* TODO : Add details about MCC , MNC , LAC , RAC ( show each digit ) ?
*/
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static int
decode_gtp_rai ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
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proto_tree * ext_tree_rai ;
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proto_item * te ;
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guint8 byte [ 3 ] ;
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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 ) ;
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/* tvb_memcpy (tvb, (guint8 *)&byte, offset + 1, 3); */
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byte [ 1 ] = tvb_get_guint8 ( tvb , offset + 1 ) ;
byte [ 2 ] = tvb_get_guint8 ( tvb , offset + 2 ) ;
byte [ 3 ] = tvb_get_guint8 ( tvb , offset + 3 ) ;
proto_tree_add_uint ( ext_tree_rai , gtp_version ? hf_gtpv1_rai_mcc : hf_gtpv0_rai_mcc , tvb , offset + 1 , 2 , ( byte [ 1 ] & 0x0F ) * 100 + ( ( byte [ 1 ] & 0xF0 ) > > 4 ) * 10 + ( byte [ 2 ] & 0x0F ) ) ;
proto_tree_add_uint ( ext_tree_rai , gtp_version ? hf_gtpv1_rai_mnc : hf_gtpv0_rai_mnc , tvb , offset + 2 , 2 , ( ( byte [ 3 ] & 0xF0 ) > > 4 ) * 10 + ( byte [ 3 ] & 0x0F ) ) ;
proto_tree_add_uint ( ext_tree_rai , gtp_version ? hf_gtpv1_rai_lac : hf_gtpv0_rai_lac , tvb , offset + 4 , 2 , tvb_get_ntohs ( tvb , offset + 4 ) ) ;
proto_tree_add_uint ( ext_tree_rai , gtp_version ? hf_gtpv1_rai_rac : hf_gtpv0_rai_rac , tvb , offset + 6 , 1 , tvb_get_guint8 ( tvb , offset + 6 ) ) ;
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return 7 ;
}
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/* GPRS: 9.60 v7.6.0, chapter 7.9.4, page 39
* UMTS : 29.060 v4 .0 , chapter 7.7 .4 , page 47
*/
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static int
decode_gtp_tlli ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
guint32 tlli ;
tlli = tvb_get_ntohl ( tvb , offset + 1 ) ;
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proto_tree_add_uint ( tree , gtp_version ? hf_gtpv1_tlli : hf_gtpv0_tlli , tvb , offset , 5 , tlli ) ;
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return 5 ;
}
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/* GPRS: 9.60 v7.6.0, chapter 7.9.5, page 39
* UMTS : 29.060 v4 .0 , chapter 7.7 .5 , page 47
*/
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static int
decode_gtp_ptmsi ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
guint32 ptmsi ;
ptmsi = tvb_get_ntohl ( tvb , offset ) ;
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proto_tree_add_uint ( tree , gtp_version ? hf_gtpv1_ptmsi : hf_gtpv0_ptmsi , tvb , offset , 5 , ptmsi ) ;
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return 5 ;
}
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/* adjust - how many bytes before offset should be highlighted
*/
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static int
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decode_qos_gprs ( tvbuff_t * tvb , int offset , proto_tree * tree , gchar * qos_str , guint8 adjust ) {
guint8 spare1 , delay , reliability , peak , spare2 , precedence , spare3 , mean ;
proto_tree * ext_tree_qos ;
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proto_item * te ;
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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 , reliability , peak , precedence , mean ) ;
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ext_tree_qos = proto_item_add_subtree ( te , ett_gtp_qos ) ;
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if ( adjust ! = 0 ) {
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proto_tree_add_uint ( ext_tree_qos , hf_gtpv0_qos_spare1 , tvb , offset , 1 , spare1 ) ;
proto_tree_add_uint ( ext_tree_qos , hf_gtpv0_qos_delay , tvb , offset , 1 , delay ) ;
proto_tree_add_uint ( ext_tree_qos , hf_gtpv0_qos_reliability , tvb , offset , 1 , reliability ) ;
proto_tree_add_uint ( ext_tree_qos , hf_gtpv0_qos_peak , tvb , offset + 1 , 1 , peak ) ;
proto_tree_add_uint ( ext_tree_qos , hf_gtpv0_qos_spare2 , tvb , offset + 1 , 1 , spare2 ) ;
proto_tree_add_uint ( ext_tree_qos , hf_gtpv0_qos_precedence , tvb , offset + 1 , 1 , precedence ) ;
proto_tree_add_uint ( ext_tree_qos , hf_gtpv0_qos_spare3 , tvb , offset + 2 , 1 , spare3 ) ;
proto_tree_add_uint ( ext_tree_qos , hf_gtpv0_qos_mean , tvb , offset + 2 , 1 , mean ) ;
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}
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return 3 ;
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}
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/* 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 , 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
*/
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static int
decode_gtp_reorder ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
guint8 reorder ;
reorder = tvb_get_guint8 ( tvb , offset + 1 ) & 0x01 ;
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proto_tree_add_boolean ( tree , gtp_version ? hf_gtpv1_reorder : hf_gtpv0_reorder , tvb , offset , 2 , reorder ) ;
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return 2 ;
}
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/* 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
*/
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static int
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decode_gtp_auth_tri ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
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proto_tree * ext_tree_auth_tri ;
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proto_item * te ;
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guint32 rand [ 4 ] , sres , kc [ 2 ] ;
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tvb_memcpy ( tvb , ( guint8 * ) & rand , offset + 1 , 16 ) ;
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sres = tvb_get_ntohl ( tvb , offset + 17 ) ;
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tvb_memcpy ( tvb , ( guint8 * ) & kc , offset + 21 , 16 ) ;
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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 ) ;
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proto_tree_add_text ( ext_tree_auth_tri , tvb , offset + 1 , 16 , " RAND: %x%x%x%x " , rand [ 0 ] , rand [ 1 ] , rand [ 2 ] , rand [ 3 ] ) ;
proto_tree_add_text ( ext_tree_auth_tri , tvb , offset + 17 , 4 , " SRES: %x " , sres ) ;
proto_tree_add_text ( ext_tree_auth_tri , tvb , offset + 21 , 8 , " Kc: %x%x " , kc [ 0 ] , kc [ 1 ] ) ;
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return 1 + 16 + 4 + 8 ;
}
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/* 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
*/
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static int
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decode_gtp_map_cause ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
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guint8 map_cause ;
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map_cause = tvb_get_guint8 ( tvb , offset + 1 ) ;
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proto_tree_add_uint ( tree , gtp_version ? hf_gtpv1_map_cause : hf_gtpv0_map_cause , tvb , offset , 2 , map_cause ) ;
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return 2 ;
}
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/* GPRS: 9.60 v7.6.0, chapter 7.9.10, page 41
* UMTS : 29.060 v4 .0 , chapter 7.7 .9 , page 48
*/
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static int
decode_gtp_ptmsi_sig ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
guint32 ptmsi_sig ;
ptmsi_sig = tvb_get_ntoh24 ( tvb , offset + 1 ) ;
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proto_tree_add_uint ( tree , gtp_version ? hf_gtpv1_ptmsi_sig : hf_gtpv0_ptmsi_sig , tvb , offset , 4 , ptmsi_sig ) ;
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return 4 ;
}
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/* GPRS: 9.60 v7.6.0, chapter 7.9.11, page 41
* UMTS : 29.060 v4 .0 , chapter 7.7 .10 , page 49
*/
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static int
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decode_gtp_ms_valid ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
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guint8 ms_valid ;
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ms_valid = tvb_get_guint8 ( tvb , offset + 1 ) & 0x01 ;
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proto_tree_add_boolean ( tree , gtp_version ? hf_gtpv1_ms_valid : hf_gtpv0_ms_valid , tvb , offset , 2 , ms_valid ) ;
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return 2 ;
}
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/* GPRS: 9.60 v7.6.0, chapter 7.9.12, page 41
* UMTS : 29.060 v4 .0 , chapter 7.7 .11 , page 49
*/
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static int
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decode_gtp_recovery ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
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guint8 recovery ;
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recovery = tvb_get_guint8 ( tvb , offset + 1 ) ;
proto_tree_add_uint ( tree , gtp_version ? hf_gtpv1_recovery : hf_gtpv0_recovery , tvb , offset , 2 , recovery ) ;
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return 2 ;
}
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/* GPRS: 9.60 v7.6.0, chapter 7.9.13, page 42
* UMTS : 29.060 v4 .0 , chapter 7.7 .12 , page 49
*/
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static int
decode_gtp_sel_mode ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
guint8 sel_mode ;
sel_mode = tvb_get_guint8 ( tvb , offset + 1 ) & 0x03 ;
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proto_tree_add_uint ( tree , gtp_version ? hf_gtpv1_sel_mode : hf_gtpv0_sel_mode , tvb , offset , 2 , sel_mode ) ;
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return 2 ;
}
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/* GPRS: 9.60 v7.6.0, chapter 7.9.14, page 42
* UMTS : 29.060 v4 .0 , chapter 7.7 .13 , page 50
*/
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static int
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decode_gtp_16 ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
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guint16 ext_flow_label ;
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guint32 teid_data ;
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switch ( gtp_version ) {
case 0 :
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ext_flow_label = tvb_get_ntohs ( tvb , offset + 1 ) ;
proto_tree_add_uint ( tree , hf_gtpv0_ext_flow_label , tvb , offset , 3 , ext_flow_label ) ;
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return 3 ;
case 1 :
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teid_data = tvb_get_ntohl ( tvb , offset + 1 ) ;
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proto_tree_add_uint ( tree , hf_gtpv1_teid_data , tvb , offset , 5 , teid_data ) ;
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return 5 ;
default :
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proto_tree_add_text ( tree , tvb , offset , 1 , " Flow label/TEID Data I : GTP version not supported " ) ;
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return 3 ;
}
}
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/* GPRS: 9.60 v7.6.0, chapter 7.9.15, page 42
* UMTS : 29.060 v4 .0 , chapter 7.7 .14 , page 42
*/
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static int
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decode_gtp_17 ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
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guint16 flow_sig ;
guint32 teid_cp ;
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switch ( gtp_version ) {
case 0 :
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flow_sig = tvb_get_ntohs ( tvb , offset + 1 ) ;
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proto_tree_add_uint ( tree , hf_gtpv0_flow_sig , tvb , offset , 3 , flow_sig ) ;
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return 3 ;
case 1 :
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teid_cp = tvb_get_ntohl ( tvb , offset + 1 ) ;
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proto_tree_add_uint ( tree , hf_gtpv1_teid_cp , tvb , offset , 5 , teid_cp ) ;
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return 5 ;
default :
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proto_tree_add_text ( tree , tvb , offset , 1 , " Flow label signalling/TEID control plane : GTP version not supported " ) ;
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return 3 ;
}
}
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/* GPRS: 9.60 v7.6.0, chapter 7.9.16, page 42
* UMTS : 29.060 v4 .0 , chapter 7.7 .15 , page 51
*/
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static int
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decode_gtp_18 ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
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guint16 flow_ii ;
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guint32 teid_ii ;
proto_tree * ext_tree_flow_ii ;
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proto_item * te ;
switch ( gtp_version ) {
case 0 :
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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 ) ;
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proto_tree_add_uint ( ext_tree_flow_ii , hf_gtpv0_nsapi , tvb , offset + 1 , 1 , tvb_get_guint8 ( tvb , offset + 1 ) & 0x0F ) ;
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flow_ii = tvb_get_ntohs ( tvb , offset + 2 ) ;
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proto_tree_add_uint ( ext_tree_flow_ii , hf_gtpv0_flow_ii , tvb , offset + 2 , 2 , flow_ii ) ;
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return 4 ;
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case 1 :
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te = proto_tree_add_text ( tree , tvb , offset , 6 , val_to_str ( GTP_EXT_TEID_II , gtp_val , " Unknown message " ) ) ;
ext_tree_flow_ii = proto_item_add_subtree ( te , ett_gtp_flow_ii ) ;
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proto_tree_add_uint ( ext_tree_flow_ii , hf_gtpv1_nsapi , tvb , offset + 1 , 1 , tvb_get_guint8 ( tvb , offset + 1 ) & 0x0F ) ;
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teid_ii = tvb_get_ntohl ( tvb , offset + 2 ) ;
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proto_tree_add_uint ( ext_tree_flow_ii , hf_gtpv1_teid_ii , tvb , offset + 2 , 4 , teid_ii ) ;
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return 6 ;
default :
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proto_tree_add_text ( tree , tvb , offset , 1 , " Flow data II/TEID Data II : GTP Version not supported " ) ;
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return 4 ;
}
}
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/* GPRS: 9.60 v7.6.0, chapter 7.9.16A, page 43
* UMTS : 29.060 v4 .0 , chapter 7.7 .16 , page 51
* Check if all ms_reason types are included
*/
static int
decode_gtp_19 ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
guint8 field19 ;
field19 = tvb_get_guint8 ( tvb , offset + 1 ) ;
switch ( gtp_version ) {
case 0 :
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proto_tree_add_uint ( tree , hf_gtpv0_ms_reason , tvb , offset , 2 , field19 ) ;
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break ;
case 1 :
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proto_tree_add_boolean ( tree , hf_gtpv1_tear_ind , tvb , offset , 2 , field19 & 0x01 ) ;
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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 , proto_tree * tree ) {
guint8 nsapi ;
nsapi = tvb_get_guint8 ( tvb , offset + 1 ) & 0x0F ;
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proto_tree_add_uint ( tree , hf_gtpv1_nsapi , tvb , offset , 2 , nsapi ) ;
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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 , proto_tree * tree ) {
guint8 ranap ;
ranap = tvb_get_guint8 ( tvb , offset + 1 ) ;
if ( ranap > 0 & & ranap < = 64 )
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proto_tree_add_uint_format ( tree , hf_gtpv1_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 ) ;
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if ( ranap > 64 & & ranap < = 80 )
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proto_tree_add_uint_format ( tree , hf_gtpv1_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 ) ;
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if ( ranap > 80 & & ranap < = 96 )
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proto_tree_add_uint_format ( tree , hf_gtpv1_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 ) ;
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if ( ranap > 96 & & ranap < = 112 )
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proto_tree_add_uint_format ( tree , hf_gtpv1_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 ) ;
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if ( ranap > 112 & & ranap < = 128 )
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proto_tree_add_uint_format ( tree , hf_gtpv1_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 ) ;
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if ( ranap > 128 & & ranap < = 255 )
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proto_tree_add_uint_format ( tree , hf_gtpv1_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 ) ;
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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 , proto_tree * tree ) {
guint8 nsapi , dl_pdcp_seq , ul_pdcp_seq ;
guint16 dl_gtpu_seq , ul_gtpu_seq ;
proto_tree * ext_tree_rab_cntxt ;
proto_item * te ;
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te = proto_tree_add_text ( tree , tvb , offset , 8 , val_to_str ( GTP_EXT_RAB_CNTXT , gtp_val , " Unknown message " ) ) ;
ext_tree_rab_cntxt = proto_item_add_subtree ( te , ett_gtp_rab_cntxt ) ;
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nsapi = tvb_get_guint8 ( tvb , offset + 1 ) & 0x0F ;
dl_gtpu_seq = tvb_get_ntohs ( tvb , offset + 2 ) ;
ul_gtpu_seq = tvb_get_ntohs ( tvb , offset + 4 ) ;
dl_pdcp_seq = tvb_get_guint8 ( tvb , offset + 6 ) ;
ul_pdcp_seq = tvb_get_guint8 ( tvb , offset + 7 ) ;
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proto_tree_add_uint ( ext_tree_rab_cntxt , hf_gtpv1_nsapi , tvb , offset + 1 , 1 , nsapi ) ;
proto_tree_add_uint ( ext_tree_rab_cntxt , hf_gtpv1_rab_gtpu_dn , tvb , offset + 2 , 2 , dl_gtpu_seq ) ;
proto_tree_add_uint ( ext_tree_rab_cntxt , hf_gtpv1_rab_gtpu_up , tvb , offset + 4 , 2 , ul_gtpu_seq ) ;
proto_tree_add_uint ( ext_tree_rab_cntxt , hf_gtpv1_rab_pdu_dn , tvb , offset + 6 , 1 , dl_pdcp_seq ) ;
proto_tree_add_uint ( ext_tree_rab_cntxt , hf_gtpv1_rab_pdu_up , tvb , offset + 7 , 1 , ul_pdcp_seq ) ;
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return 8 ;
}
/* 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 , proto_tree * tree ) {
guint8 rp_sms ;
rp_sms = tvb_get_guint8 ( tvb , offset + 1 ) & 0x07 ;
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proto_tree_add_uint ( tree , hf_gtpv1_rp_sms , tvb , offset , 2 , rp_sms ) ;
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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 , 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 ;
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te = proto_tree_add_uint_format ( tree , hf_gtpv1_rp , tvb , offset , 2 , rp , " Radio Priority for NSAPI(%u) : %u " , nsapi , rp ) ;
ext_tree_rp = proto_item_add_subtree ( tree , ett_gtp_rp ) ;
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proto_tree_add_uint ( ext_tree_rp , hf_gtpv1_rp_nsapi , tvb , offset + 1 , 1 , nsapi ) ;
proto_tree_add_uint ( ext_tree_rp , hf_gtpv1_rp_spare , tvb , offset + 1 , 1 , spare ) ;
proto_tree_add_uint ( ext_tree_rp , hf_gtpv1_rp , tvb , offset + 1 , 1 , rp ) ;
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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 , 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 ) ;
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te = proto_tree_add_uint_format ( tree , hf_gtpv1_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 ) ;
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proto_tree_add_uint ( ext_tree_pkt_flow_id , hf_gtpv1_nsapi , tvb , offset + 1 , 1 , nsapi ) ;
proto_tree_add_uint_format ( ext_tree_pkt_flow_id , hf_gtpv1_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 ) ;
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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 , proto_tree * tree ) {
guint16 chrg_char ;
proto_item * te ;
proto_tree * ext_tree_chrg_char ;
chrg_char = tvb_get_ntohs ( tvb , offset + 1 ) ;
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te = proto_tree_add_text ( tree , tvb , offset , 3 , " %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 ) ;
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proto_tree_add_uint ( ext_tree_chrg_char , hf_gtpv1_chrg_char_s , tvb , offset + 1 , 2 , chrg_char ) ;
proto_tree_add_uint ( ext_tree_chrg_char , hf_gtpv1_chrg_char_n , tvb , offset + 1 , 2 , chrg_char ) ;
proto_tree_add_uint ( ext_tree_chrg_char , hf_gtpv1_chrg_char_p , tvb , offset + 1 , 2 , chrg_char ) ;
proto_tree_add_uint ( ext_tree_chrg_char , hf_gtpv1_chrg_char_f , tvb , offset + 1 , 2 , chrg_char ) ;
proto_tree_add_uint ( ext_tree_chrg_char , hf_gtpv1_chrg_char_h , tvb , offset + 1 , 2 , chrg_char ) ;
proto_tree_add_uint ( ext_tree_chrg_char , hf_gtpv1_chrg_char_r , tvb , offset + 1 , 2 , chrg_char ) ;
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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 , proto_tree * tree ) {
guint16 trace_ref ;
trace_ref = tvb_get_ntohs ( tvb , offset + 1 ) ;
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proto_tree_add_uint ( tree , hf_gtpv1_trace_ref , tvb , offset , 3 , trace_ref ) ;
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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 , proto_tree * tree ) {
guint16 trace_type ;
trace_type = tvb_get_ntohs ( tvb , offset + 1 ) ;
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proto_tree_add_uint ( tree , hf_gtpv1_trace_type , tvb , offset , 3 , trace_type ) ;
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return 3 ;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.16A
* UMTS : 29.060 v4 .0 , chapter 7.7 .25 A , page
*/
static int
decode_gtp_ms_reason ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
guint8 reason ;
reason = tvb_get_guint8 ( tvb , offset + 1 ) ;
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proto_tree_add_uint ( tree , gtp_version ? hf_gtpv1_ms_reason : hf_gtpv0_ms_reason , tvb , offset , 2 , reason ) ;
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return 2 ;
}
/* GPRS: 12.15
* UMTS : 33.015
*/
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static int
decode_gtp_tr_comm ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
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guint8 tr_command ;
tr_command = tvb_get_ntohl ( tvb , offset + 1 ) ;
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proto_tree_add_uint ( tree , gtp_version ? hf_gtpv1_tr_comm : hf_gtpv0_tr_comm , tvb , offset , 2 , tr_command ) ;
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return 2 ;
}
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/* GPRS: 9.60 v7.6.0, chapter 7.9.17, page 43
* UMTS : 29.060 v4 .0 , chapter 7.7 .26 , page 55
*/
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static int
decode_gtp_chrg_id ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
guint32 chrg_id ;
chrg_id = tvb_get_ntohl ( tvb , offset + 1 ) ;
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proto_tree_add_uint ( tree , gtp_version ? hf_gtpv1_chrg_id : hf_gtpv0_chrg_id , tvb , offset , 5 , chrg_id ) ;
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return 5 ;
}
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/* GPRS: 9.60 v7.6.0, chapter 7.9.18, page 43
* UMTS : 29.060 v4 .0 , chapter 7.7 .27 , page 55
*/
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static int
decode_gtp_user_addr ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
guint16 length ;
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guint8 pdp_typ , pdp_org ;
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guint32 addr_ipv4 ;
struct e_in6_addr addr_ipv6 ;
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proto_tree * ext_tree_user ;
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proto_item * te ;
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length = tvb_get_ntohs ( tvb , offset + 1 ) ;
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pdp_org = tvb_get_guint8 ( tvb , offset + 3 ) & 0x0F ;
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pdp_typ = tvb_get_guint8 ( tvb , offset + 4 ) ;
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te = proto_tree_add_text ( tree , tvb , offset , 3 + length , " %s (%s/%s) " ,
val_to_str ( GTP_EXT_USER_ADDR , gtp_val , " Unknown message " ) ,
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val_to_str ( pdp_org , pdp_org_type , " Unknown PDP Organization " ) ,
val_to_str ( pdp_typ , pdp_type , " Unknown PDP Type " ) ) ;
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ext_tree_user = proto_item_add_subtree ( te , ett_gtp_user ) ;
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proto_tree_add_text ( ext_tree_user , tvb , offset + 1 , 2 , " Length : %u " , length ) ;
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proto_tree_add_uint ( ext_tree_user , gtp_version ? hf_gtpv1_user_addr_pdp_org : hf_gtpv0_user_addr_pdp_org , tvb , offset + 3 , 1 , pdp_org ) ;
proto_tree_add_uint ( ext_tree_user , gtp_version ? hf_gtpv1_user_addr_pdp_type : hf_gtpv0_user_addr_pdp_type , tvb , offset + 4 , 1 , pdp_typ ) ;
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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 ) {
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case 0x21 :
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tvb_memcpy ( tvb , ( guint8 * ) & addr_ipv4 , offset + 5 , sizeof addr_ipv4 ) ;
proto_tree_add_ipv4 ( ext_tree_user , gtp_version ? hf_gtpv1_user_ipv4 : hf_gtpv0_user_ipv4 , tvb , offset + 5 , 4 , addr_ipv4 ) ;
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proto_item_append_text ( te , " : %s " , ip_to_str ( ( guint8 * ) & addr_ipv4 ) ) ;
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break ;
case 0x57 :
tvb_memcpy ( tvb , ( guint8 * ) & addr_ipv6 , offset + 5 , sizeof addr_ipv6 ) ;
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proto_tree_add_ipv6 ( ext_tree_user , gtp_version ? hf_gtpv1_user_ipv6 : hf_gtpv0_user_ipv6 , tvb , offset + 5 , 16 , ( guint8 * ) & addr_ipv6 ) ;
proto_item_append_text ( te , " : %s " , ip6_to_str ( ( struct e_in6_addr * ) & addr_ipv6 ) ) ;
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break ;
}
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} else
proto_item_append_text ( te , " : empty PDP Address " ) ;
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return 3 + length ;
}
static int
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decode_triplet ( tvbuff_t * tvb , int offset , proto_tree * tree , guint16 count ) {
proto_tree * ext_tree_trip ;
proto_item * te_trip ;
guint32 rand [ 4 ] , sres , kc [ 2 ] ;
guint16 i ;
for ( i = 0 ; i < count ; i + + ) {
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tvb_memcpy ( tvb , ( guint8 * ) & rand , offset + i * 28 , 16 ) ;
sres = tvb_get_ntohl ( tvb , offset + i * 28 + 16 ) ;
tvb_memcpy ( tvb , ( guint8 * ) & kc , offset + i * 28 + 20 , 8 ) ;
te_trip = proto_tree_add_text ( tree , tvb , offset + i * 28 , 28 , " Triplet no%x " , i ) ;
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ext_tree_trip = proto_item_add_subtree ( te_trip , ett_gtp_trip ) ;
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proto_tree_add_text ( ext_tree_trip , tvb , offset + i * 28 , 16 , " RAND: %x%x%x%x " , rand [ 0 ] , rand [ 1 ] , rand [ 2 ] , rand [ 3 ] ) ;
proto_tree_add_text ( ext_tree_trip , tvb , offset + i * 28 + 16 , 4 , " SRES: %x " , sres ) ;
proto_tree_add_text ( ext_tree_trip , tvb , offset + i * 28 + 20 , 8 , " Kc: %x%x " , kc [ 0 ] , kc [ 1 ] ) ;
}
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 , guint8 adjust ) {
proto_tree * ext_tree_quint ;
proto_item * te_quint ;
guint32 rand [ 4 ] , q_ck [ 4 ] , q_ik [ 4 ] ;
guint16 q_len , xres_len , auth_len , q_offset , i ;
q_offset = 0 ;
for ( i = 0 ; i < count ; i + + ) {
offset = offset + q_offset ;
q_len = tvb_get_ntohs ( tvb , offset ) ;
tvb_memcpy ( tvb , ( guint8 * ) & rand , offset + 2 , 16 ) ;
xres_len = tvb_get_ntohs ( tvb , offset + 18 ) ;
/* xres = tvb_get_ptr(tvb, offset+20, xres_len);*/
tvb_memcpy ( tvb , ( guint8 * ) & q_ck , offset + 20 + xres_len , 16 ) ;
tvb_memcpy ( tvb , ( guint8 * ) & q_ik , offset + 36 + xres_len , 16 ) ;
auth_len = tvb_get_ntohs ( tvb , offset + 52 + xres_len ) ;
/* auth = tvb_get_ptr(tvb, offset+54+xres_len, auth_len);*/
te_quint = proto_tree_add_text ( tree , tvb , offset - adjust , q_len + adjust , " Quintuplet #%x " , i ) ;
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ext_tree_quint = proto_item_add_subtree ( te_quint , ett_gtp_quint ) ;
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proto_tree_add_text ( ext_tree_quint , tvb , offset , 2 , " Length: %x " , q_len ) ;
proto_tree_add_text ( ext_tree_quint , tvb , offset + 2 , 16 , " RAND: %x%x%x%x " , rand [ 0 ] , rand [ 1 ] , rand [ 2 ] , rand [ 3 ] ) ;
proto_tree_add_text ( ext_tree_quint , tvb , offset + 18 , 2 , " XRES length: %x " , xres_len ) ;
proto_tree_add_text ( ext_tree_quint , tvb , offset + 20 , xres_len , " XRES " ) ;
proto_tree_add_text ( ext_tree_quint , tvb , offset + 20 + xres_len , 16 , " Quintuplet ciphering key: %x%x%x%x " , q_ck [ 0 ] , q_ck [ 1 ] , q_ck [ 2 ] , q_ck [ 3 ] ) ;
proto_tree_add_text ( ext_tree_quint , tvb , offset + 36 + xres_len , 16 , " Quintuplet integrity key: %x%x%x%x " , q_ik [ 0 ] , q_ik [ 1 ] , q_ik [ 2 ] , q_ik [ 3 ] ) ;
proto_tree_add_text ( ext_tree_quint , tvb , offset + 52 + xres_len , 2 , " Authentication length: %x " , auth_len ) ;
proto_tree_add_text ( ext_tree_quint , tvb , offset + 54 + xres_len , auth_len , " AUTH " ) ;
q_offset = q_offset + q_len + 2 ;
}
return q_offset ;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.19 page
* UMTS : 29.060 v4 .0 , chapter 7.7 .28 page 57
* TODO : - check if for quintuplets first 2 bytes are length , according to AuthQuint
* - finish displaying last 3 parameters
*/
static int
decode_gtp_mm_cntxt ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
guint16 length , quint_len , net_cap , con_len ;
guint8 cksn , count , sec_mode , cipher , trans_id , proto_disc , message , drx_split , drx_len , drx_ccch , non_drx_timer ;
guint32 kc [ 4 ] , ik [ 4 ] ;
proto_tree * ext_tree_mm ;
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proto_item * te ;
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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 ) ;
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length = tvb_get_ntohs ( tvb , offset + 1 ) ;
if ( length < 1 ) return 3 ;
cksn = tvb_get_guint8 ( tvb , offset + 3 ) & 0x07 ;
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sec_mode = ( tvb_get_guint8 ( tvb , offset + 4 ) > > 6 ) & 0x03 ;
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count = ( tvb_get_guint8 ( tvb , offset + 4 ) > > 3 ) & 0x07 ;
cipher = tvb_get_guint8 ( tvb , offset + 4 ) & 0x07 ;
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proto_tree_add_text ( ext_tree_mm , tvb , offset + 1 , 2 , " Length: %x " , length ) ;
proto_tree_add_text ( ext_tree_mm , tvb , offset + 3 , 1 , " Ciphering Key Sequence Number: %u " , cksn ) ;
if ( gtp_version ! = 0 ) {
proto_tree_add_text ( ext_tree_mm , tvb , offset + 3 , 1 , " Security type: %u " , sec_mode ) ;
} else {
sec_mode = 1 ;
}
proto_tree_add_text ( ext_tree_mm , tvb , offset + 4 , 1 , " No of triplets: %u " , count ) ;
switch ( sec_mode ) {
case 0 :
if ( cipher = = 0 ) {
proto_tree_add_text ( ext_tree_mm , tvb , offset + 4 , 1 , " Ciphering: no ciphering " ) ;
} else {
proto_tree_add_text ( ext_tree_mm , tvb , offset + 4 , 1 , " Ciphering: GEA/%u " , cipher ) ;
}
tvb_memcpy ( tvb , ( guint8 * ) & kc , offset + 5 , 16 ) ;
proto_tree_add_text ( ext_tree_mm , tvb , offset + 5 , 16 , " Ciphering key CK: %x%x%x%x " , kc [ 0 ] , kc [ 1 ] , kc [ 2 ] , kc [ 3 ] ) ;
tvb_memcpy ( tvb , ( guint8 * ) & ik , offset + 21 , 16 ) ;
proto_tree_add_text ( ext_tree_mm , tvb , offset + 21 , 16 , " Integrity key CK: %x%x%x%x " , ik [ 0 ] , ik [ 1 ] , ik [ 2 ] , ik [ 3 ] ) ;
quint_len = tvb_get_ntohs ( tvb , offset + 37 ) ;
proto_tree_add_text ( ext_tree_mm , tvb , offset + 37 , 2 , " Quintuplets length: %x " , quint_len ) ;
offset = offset + decode_quintuplet ( tvb , offset + 39 , ext_tree_mm , count , 0 ) + 39 ;
break ;
case 1 :
if ( cipher = = 0 ) {
proto_tree_add_text ( ext_tree_mm , tvb , offset + 4 , 1 , " Ciphering: no ciphering " ) ;
} else {
proto_tree_add_text ( ext_tree_mm , tvb , offset + 4 , 1 , " Ciphering: GEA/%u " , cipher ) ;
}
tvb_memcpy ( tvb , ( guint8 * ) & kc , offset + 5 , 8 ) ;
proto_tree_add_text ( ext_tree_mm , tvb , offset + 5 , 8 , " Ciphering key Kc: %x%x " , kc [ 0 ] , kc [ 1 ] ) ;
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offset = offset + decode_triplet ( tvb , offset + 13 , ext_tree_mm , count ) + 13 ;
break ;
case 2 :
tvb_memcpy ( tvb , ( guint8 * ) & kc , offset + 5 , 16 ) ;
proto_tree_add_text ( ext_tree_mm , tvb , offset + 5 , 16 , " Ciphering key CK: %x%x%x%x " , kc [ 0 ] , kc [ 1 ] , kc [ 2 ] , kc [ 3 ] ) ;
tvb_memcpy ( tvb , ( guint8 * ) & ik , offset + 21 , 16 ) ;
proto_tree_add_text ( ext_tree_mm , tvb , offset + 21 , 16 , " Integrity key CK: %x%x%x%x " , ik [ 0 ] , ik [ 1 ] , ik [ 2 ] , ik [ 3 ] ) ;
quint_len = tvb_get_ntohs ( tvb , offset + 37 ) ;
proto_tree_add_text ( ext_tree_mm , tvb , offset + 37 , 2 , " Quintuplets length: %x " , quint_len ) ;
offset = offset + decode_quintuplet ( tvb , offset + 39 , ext_tree_mm , count , 0 ) + 39 ;
break ;
case 3 :
if ( cipher = = 0 ) {
proto_tree_add_text ( ext_tree_mm , tvb , offset + 4 , 1 , " Ciphering: no ciphering " ) ;
} else {
proto_tree_add_text ( ext_tree_mm , tvb , offset + 4 , 1 , " Ciphering: GEA/%u " , cipher ) ;
}
tvb_memcpy ( tvb , ( guint8 * ) & kc , offset + 5 , 8 ) ;
proto_tree_add_text ( ext_tree_mm , tvb , offset + 5 , 8 , " Ciphering key Kc: %x%x " , kc [ 0 ] , kc [ 1 ] ) ;
quint_len = tvb_get_ntohs ( tvb , offset + 13 ) ;
proto_tree_add_text ( ext_tree_mm , tvb , offset + 13 , 2 , " Quintuplets length: %x " , quint_len ) ;
offset = offset + decode_quintuplet ( tvb , offset + 15 , ext_tree_mm , count , 0 ) + 15 ;
break ;
default :
break ;
}
drx_split = tvb_get_guint8 ( tvb , offset ) ;
drx_len = ( tvb_get_guint8 ( tvb , offset + 1 ) > > 4 ) & 0x0F ;
drx_ccch = ( tvb_get_guint8 ( tvb , offset + 1 ) > > 3 ) & 0x01 ;
non_drx_timer = tvb_get_guint8 ( tvb , offset + 1 ) & 0x07 ;
net_cap = tvb_get_ntohs ( tvb , offset + 2 ) ;
con_len = tvb_get_ntohs ( tvb , offset + 4 ) ;
proto_tree_add_text ( ext_tree_mm , tvb , offset , 1 , " DRX: split PG cycle code: %u " , drx_split ) ;
proto_tree_add_text ( ext_tree_mm , tvb , offset + 1 , 1 , " DRX: CN specific DRX cycle length coefficient: %u " , drx_len ) ;
proto_tree_add_text ( ext_tree_mm , tvb , offset + 1 , 1 , " DRX: split PG cycle on CCCH supported by MS: %s " , yesno [ drx_ccch ] ) ;
if ( non_drx_timer = = 0 ) {
proto_tree_add_text ( ext_tree_mm , tvb , offset + 1 , 1 , " DRX: no non-DRX mode after transfer state " ) ;
} else {
proto_tree_add_text ( ext_tree_mm , tvb , offset + 1 , 1 , " DRX: max sec non-DRX mode after transfer state: 2^%u " , non_drx_timer - 1 ) ;
}
proto_tree_add_text ( ext_tree_mm , tvb , offset + 2 , 2 , " MS network capability: %u " , net_cap ) ;
proto_tree_add_text ( ext_tree_mm , tvb , offset + 4 , 2 , " Container length: %u " , con_len ) ;
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if ( con_len > 0 ) {
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trans_id = ( tvb_get_guint8 ( tvb , offset + 6 ) > > 4 ) & 0x0F ;
proto_disc = tvb_get_guint8 ( tvb , offset + 6 ) & 0x0F ;
message = tvb_get_guint8 ( tvb , offset + 7 ) ;
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}
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return 3 + length ;
}
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2002-01-31 09:59:22 +00:00
/* WARNING : actually length is coded on 2 octets for QoS profile but on 1 octet for PDP Context!
* so type means length of length : - )
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*/
static int
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decode_qos_umts ( tvbuff_t * tvb , int offset , proto_tree * tree , gchar * qos_str , guint8 type ) {
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guint8 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 ;
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guint8 trans_delay , traf_handl_prio ;
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guint8 guar_ul , guar_dl ;
proto_tree * ext_tree_qos ;
proto_item * te ;
int mss , mu , md , gu , gd ;
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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 ) ;
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 ) ;
type + + ; /* +1 because of first 0x86 byte for UMTS QoS */
break ;
default :
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/* XXX - what should we do with the length here? */
length = 0 ;
ext_tree_qos = NULL ;
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break ;
}
offset + = type ;
al_ret_priority = tvb_get_guint8 ( tvb , offset ) ;
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spare1 = tvb_get_guint8 ( tvb , offset + 1 ) & 0xC0 ;
delay = tvb_get_guint8 ( tvb , offset + 1 ) & 0x38 ;
reliability = tvb_get_guint8 ( tvb , offset + 1 ) & 0x07 ;
peak = tvb_get_guint8 ( tvb , offset + 2 ) & 0xF0 ;
spare2 = tvb_get_guint8 ( tvb , offset + 2 ) & 0x08 ;
precedence = tvb_get_guint8 ( tvb , offset + 2 ) & 0x07 ;
spare3 = tvb_get_guint8 ( tvb , offset + 3 ) & 0xE0 ;
mean = tvb_get_guint8 ( tvb , offset + 3 ) & 0x1F ;
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proto_tree_add_uint ( ext_tree_qos , hf_gtpv1_qos_al_ret_priority , tvb , offset , 1 , al_ret_priority ) ;
proto_tree_add_uint ( ext_tree_qos , hf_gtpv1_qos_spare1 , tvb , offset + 1 , 1 , spare1 ) ;
proto_tree_add_uint ( ext_tree_qos , hf_gtpv1_qos_delay , tvb , offset + 1 , 1 , delay ) ;
proto_tree_add_uint ( ext_tree_qos , hf_gtpv1_qos_reliability , tvb , offset + 1 , 1 , reliability ) ;
proto_tree_add_uint ( ext_tree_qos , hf_gtpv1_qos_peak , tvb , offset + 2 , 1 , peak ) ;
proto_tree_add_uint ( ext_tree_qos , hf_gtpv1_qos_spare2 , tvb , offset + 2 , 1 , spare2 ) ;
proto_tree_add_uint ( ext_tree_qos , hf_gtpv1_qos_precedence , tvb , offset + 2 , 1 , precedence ) ;
proto_tree_add_uint ( ext_tree_qos , hf_gtpv1_qos_spare3 , tvb , offset + 3 , 1 , spare3 ) ;
proto_tree_add_uint ( ext_tree_qos , hf_gtpv1_qos_mean , tvb , offset + 3 , 1 , mean ) ;
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if ( length > 4 ) {
traf_class = tvb_get_guint8 ( tvb , offset + 4 ) & 0xE0 ;
del_order = tvb_get_guint8 ( tvb , offset + 4 ) & 0x18 ;
del_err_sdu = tvb_get_guint8 ( tvb , offset + 4 ) & 0x07 ;
max_sdu_size = tvb_get_guint8 ( tvb , offset + 5 ) ;
max_dl = tvb_get_guint8 ( tvb , offset + 6 ) ;
max_ul = tvb_get_guint8 ( tvb , offset + 7 ) ;
res_ber = tvb_get_guint8 ( tvb , offset + 8 ) & 0xF0 ;
sdu_err_ratio = tvb_get_guint8 ( tvb , offset + 8 ) & 0x0F ;
trans_delay = tvb_get_guint8 ( tvb , offset + 9 ) & 0xFC ;
traf_handl_prio = tvb_get_guint8 ( tvb , offset + 9 ) & 0x03 ;
guar_ul = tvb_get_guint8 ( tvb , offset + 10 ) ;
guar_dl = tvb_get_guint8 ( tvb , offset + 11 ) ;
proto_tree_add_uint ( ext_tree_qos , hf_gtpv1_qos_traf_class , tvb , offset + 4 , 1 , traf_class ) ;
proto_tree_add_uint ( ext_tree_qos , hf_gtpv1_qos_del_order , tvb , offset + 4 , 1 , del_order ) ;
proto_tree_add_uint ( ext_tree_qos , hf_gtpv1_qos_del_err_sdu , tvb , offset + 4 , 1 , del_err_sdu ) ;
if ( max_sdu_size = = 0 | | max_sdu_size > 150 )
proto_tree_add_uint ( ext_tree_qos , hf_gtpv1_qos_max_sdu_size , tvb , offset + 5 , 1 , 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_gtpv1_qos_max_sdu_size , tvb , offset + 5 , 1 , mss , " Maximum SDU size : %u octets " , mss ) ;
}
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if ( max_ul = = 0 | | max_ul = = 255 )
proto_tree_add_uint ( ext_tree_qos , hf_gtpv1_qos_max_ul , tvb , offset + 6 , 1 , max_ul ) ;
if ( max_ul > 0 & & max_ul < = 63 )
proto_tree_add_uint_format ( ext_tree_qos , hf_gtpv1_qos_max_ul , tvb , offset + 6 , 1 , 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_gtpv1_qos_max_ul , tvb , offset + 6 , 1 , 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_gtpv1_qos_max_ul , tvb , offset + 6 , 1 , mu , " Maximum bit rate for uplink : %u kbps " , mu ) ;
}
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if ( max_dl = = 0 | | max_dl = = 255 )
proto_tree_add_uint ( ext_tree_qos , hf_gtpv1_qos_max_dl , tvb , offset + 7 , 1 , max_dl ) ;
if ( max_dl > 0 & & max_dl < = 63 )
proto_tree_add_uint_format ( ext_tree_qos , hf_gtpv1_qos_max_dl , tvb , offset + 7 , 1 , 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_gtpv1_qos_max_dl , tvb , offset + 7 , 1 , 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_gtpv1_qos_max_dl , tvb , offset + 7 , 1 , md , " Maximum bit rate for downlink : %u kbps " , md ) ;
}
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proto_tree_add_uint ( ext_tree_qos , hf_gtpv1_qos_res_ber , tvb , offset + 8 , 1 , res_ber ) ;
proto_tree_add_uint ( ext_tree_qos , hf_gtpv1_qos_sdu_err_ratio , tvb , offset + 8 , 1 , sdu_err_ratio ) ;
proto_tree_add_uint ( ext_tree_qos , hf_gtpv1_qos_trans_delay , tvb , offset + 9 , 1 , trans_delay ) ;
proto_tree_add_uint ( ext_tree_qos , hf_gtpv1_qos_traf_handl_prio , tvb , offset + 9 , 1 , traf_handl_prio ) ;
if ( guar_ul = = 0 | | guar_ul = = 255 )
proto_tree_add_uint ( ext_tree_qos , hf_gtpv1_qos_guar_ul , tvb , offset + 10 , 1 , guar_ul ) ;
if ( guar_ul > 0 & & guar_ul < = 63 )
proto_tree_add_uint_format ( ext_tree_qos , hf_gtpv1_qos_guar_ul , tvb , offset + 10 , 1 , 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_gtpv1_qos_guar_ul , tvb , offset + 10 , 1 , 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_gtpv1_qos_guar_ul , tvb , offset + 10 , 1 , gu , " Guaranteed bit rate for uplink : %u kbps " , gu ) ;
}
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if ( guar_dl = = 0 | | guar_dl = = 255 )
proto_tree_add_uint ( ext_tree_qos , hf_gtpv1_qos_guar_dl , tvb , offset + 11 , 1 , guar_dl ) ;
if ( guar_dl > 0 & & guar_dl < = 63 )
proto_tree_add_uint_format ( ext_tree_qos , hf_gtpv1_qos_guar_dl , tvb , offset + 11 , 1 , 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_gtpv1_qos_guar_dl , tvb , offset + 11 , 1 , 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_gtpv1_qos_guar_dl , tvb , offset + 11 , 1 , gd , " Guaranteed bit rate for downlink : %u kbps " , gd ) ;
}
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}
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return length + type ;
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}
static void
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decode_apn ( tvbuff_t * tvb , int offset , guint16 length , proto_tree * tree ) {
gchar * apn = NULL ;
guint8 name_len , tmp ;
if ( length > 0 ) {
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apn = g_malloc ( length + 1 ) ;
name_len = tvb_get_guint8 ( tvb , offset ) ;
if ( name_len < 0x20 ) {
tvb_memcpy ( tvb , apn , offset + 1 , length ) ;
for ( ; ; ) {
if ( name_len > = length - 1 ) break ;
tmp = name_len ;
name_len = name_len + apn [ tmp ] + 1 ;
apn [ tmp ] = ' . ' ;
}
} else {
tvb_memcpy ( tvb , apn , offset , length ) ;
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}
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apn [ length - 1 ] = ' \0 ' ;
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proto_tree_add_string ( tree , gtp_version ? hf_gtpv1_apn : hf_gtpv0_apn , tvb , offset , length , apn ) ;
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g_free ( 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 , 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 ;
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guint16 length , sn_down , sn_up , up_flow ;
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guint32 addr_ipv4 , up_teid , up_teid_cp ;
struct e_in6_addr addr_ipv6 ;
proto_tree * ext_tree_pdp ;
proto_item * te ;
length = tvb_get_ntohs ( tvb , offset + 1 ) ;
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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 ) ;
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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 ) ;
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offset = offset + 14 ;
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break ;
case 1 :
offset = offset + 5 ;
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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 ) ;
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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 :
up_teid = tvb_get_ntohl ( tvb , offset + 6 ) ;
up_teid_cp = tvb_get_ntohl ( tvb , offset + 10 ) ;
pdp_cntxt_id = tvb_get_guint8 ( tvb , offset + 14 ) ;
proto_tree_add_text ( ext_tree_pdp , tvb , offset + 6 , 4 , " Uplink TEID: %x " , up_teid ) ;
proto_tree_add_text ( ext_tree_pdp , tvb , offset + 10 , 4 , " Uplink TEID control plane: %x " , up_teid_cp ) ;
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 ) ;
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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_org_type , " Unknown PDP type " ) ) ;
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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 :
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tvb_memcpy ( tvb , ( guint8 * ) & addr_ipv4 , offset + 3 , sizeof addr_ipv4 ) ;
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proto_tree_add_text ( ext_tree_pdp , tvb , offset + 3 , 4 , " PDP address: %s " , ip_to_str ( ( guint8 * ) & addr_ipv4 ) ) ;
break ;
case 0x57 :
tvb_memcpy ( tvb , ( guint8 * ) & addr_ipv6 , offset + 3 , sizeof 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 ) ;
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proto_tree_add_text ( ext_tree_pdp , tvb , offset , 1 , " GGSN address length: %u " , ggsn_addr_len ) ;
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switch ( ggsn_addr_len ) {
case 4 :
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tvb_memcpy ( tvb , ( guint8 * ) & addr_ipv4 , offset + 1 , sizeof addr_ipv4 ) ;
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proto_tree_add_text ( ext_tree_pdp , tvb , offset + 1 , 4 , " GGSN address: %s " , ip_to_str ( ( guint8 * ) & addr_ipv4 ) ) ;
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break ;
case 16 :
tvb_memcpy ( tvb , ( guint8 * ) & addr_ipv6 , offset + 1 , sizeof addr_ipv6 ) ;
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proto_tree_add_text ( ext_tree_pdp , tvb , offset + 1 , 16 , " GGSN address: %s " , ip6_to_str ( ( struct e_in6_addr * ) & addr_ipv6 ) ) ;
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break ;
default :
break ;
}
offset = offset + 1 + ggsn_addr_len ;
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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 :
tvb_memcpy ( tvb , ( guint8 * ) & addr_ipv4 , offset + 1 , sizeof addr_ipv4 ) ;
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_memcpy ( tvb , ( guint8 * ) & addr_ipv6 , offset + 1 , sizeof 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 ;
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}
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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 ;
trans_id = tvb_get_guint8 ( tvb , offset ) ;
proto_tree_add_text ( ext_tree_pdp , tvb , offset , 1 , " Transaction identifier: %u " , trans_id ) ;
return 3 + length ;
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}
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/* GPRS: 9.60, v7.6.0, chapter 7.9.21
* UMTS : 29.060 , v4 .0 , chapter 7.7 .30
*/
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static int
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decode_gtp_apn ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
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guint16 length ;
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proto_tree * ext_tree_apn ;
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proto_item * te ;
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length = tvb_get_ntohs ( tvb , offset + 1 ) ;
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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 ) ;
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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
* TODO : check if length is 8 or 16 bits
* - proto_conf in 3 G */
int
decode_gtp_proto_conf ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
guint16 length , proto_offset ;
guint8 * ptr , conf , proto_len , tmp , msg ;
tvbuff_t * next_tvb ;
proto_tree * ext_tree_proto ;
proto_item * te ;
length = tvb_get_ntohs ( tvb , offset + 1 ) ;
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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 ) ;
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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_offset = 1 ; /* ... 1st byte is conf */
for ( ; ; ) {
if ( proto_offset > = length ) break ;
proto_len = tvb_get_guint8 ( tvb , offset + 6 ) ;
proto_offset + = proto_len + 3 ;
if ( ( proto_len > 0 ) & & ppp_reorder ) {
/* this part changes layout of GTP payload:
* it swaps " length field " with " protocol header " */
ptr = ( guint8 * ) tvb_get_ptr ( tvb , offset + 4 , 3 ) ;
tmp = ptr [ 2 ] ;
ptr [ 2 ] = ptr [ 1 ] ;
ptr [ 1 ] = ptr [ 0 ] ;
ptr [ 0 ] = tmp ;
next_tvb = tvb_new_subset ( tvb , offset + 5 , proto_len + 2 , proto_len + 2 ) ;
call_dissector ( ppp_handle , next_tvb , pinfo , ext_tree_proto ) ;
2001-12-10 00:26:21 +00:00
if ( check_col ( pinfo - > cinfo , COL_PROTOCOL ) )
col_set_str ( pinfo - > cinfo , COL_PROTOCOL , " GTP " ) ;
2001-09-11 08:14:39 +00:00
2001-12-10 00:26:21 +00:00
if ( check_col ( pinfo - > cinfo , COL_INFO ) ) {
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msg = tvb_get_guint8 ( tvb , 1 ) ;
2001-12-10 00:26:21 +00:00
col_set_str ( pinfo - > cinfo , COL_INFO , val_to_str ( msg , message_type , " Unknown " ) ) ;
2001-09-11 08:14:39 +00:00
}
}
}
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 , 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 : " ) ;
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ext_tree_gsn_addr = proto_item_add_subtree ( te , ett_gtp_gsn_addr ) ;
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switch ( length ) {
case 4 :
proto_tree_add_text ( ext_tree_gsn_addr , tvb , offset + 1 , 2 , " GSN address length : %u " , length ) ;
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tvb_memcpy ( tvb , ( guint8 * ) & addr_ipv4 , offset + 3 , sizeof addr_ipv4 ) ;
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proto_item_append_text ( te , " %s " , ip_to_str ( ( guint8 * ) & addr_ipv4 ) ) ;
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proto_tree_add_ipv4 ( ext_tree_gsn_addr , gtp_version ? hf_gtpv1_gsn_ipv4 : hf_gtpv0_gsn_ipv4 , tvb , offset + 3 , 4 , addr_ipv4 ) ;
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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 ;
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proto_tree_add_uint ( ext_tree_gsn_addr , gtp_version ? hf_gtpv1_gsn_addr_type : hf_gtpv0_gsn_addr_type , tvb , offset + 3 , 1 , addr_type ) ;
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addr_len = tvb_get_guint8 ( tvb , offset + 3 ) & 0x3F ;
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proto_tree_add_uint ( ext_tree_gsn_addr , gtp_version ? hf_gtpv1_gsn_addr_len : hf_gtpv0_gsn_addr_len , tvb , offset + 3 , 1 , addr_len ) ;
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tvb_memcpy ( tvb , ( guint8 * ) & addr_ipv4 , offset + 4 , sizeof addr_ipv4 ) ;
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proto_item_append_text ( te , " %s " , ip_to_str ( ( guint8 * ) & addr_ipv4 ) ) ;
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proto_tree_add_ipv4 ( ext_tree_gsn_addr , gtp_version ? hf_gtpv1_gsn_ipv4 : hf_gtpv0_gsn_ipv4 , tvb , offset + 4 , 4 , addr_ipv4 ) ;
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break ;
case 16 :
proto_tree_add_text ( ext_tree_gsn_addr , tvb , offset + 1 , 2 , " GSN address length : %u " , length ) ;
tvb_memcpy ( tvb , ( guint8 * ) & addr_ipv6 , offset + 3 , sizeof addr_ipv6 ) ;
proto_item_append_text ( te , " %s " , ip6_to_str ( ( struct e_in6_addr * ) & addr_ipv6 ) ) ;
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proto_tree_add_ipv6 ( ext_tree_gsn_addr , gtp_version ? hf_gtpv1_gsn_ipv6 : hf_gtpv0_gsn_ipv6 , tvb , offset + 3 , 16 , ( guint8 * ) & addr_ipv6 ) ;
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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 ;
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proto_tree_add_uint ( ext_tree_gsn_addr , gtp_version ? hf_gtpv1_gsn_addr_type : hf_gtpv0_gsn_addr_type , tvb , offset + 3 , 1 , addr_type ) ;
2001-09-11 08:14:39 +00:00
addr_len = tvb_get_guint8 ( tvb , offset + 3 ) & 0x3F ;
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proto_tree_add_uint ( ext_tree_gsn_addr , gtp_version ? hf_gtpv1_gsn_addr_len : hf_gtpv0_gsn_addr_len , tvb , offset + 3 , 1 , addr_len ) ;
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tvb_memcpy ( tvb , ( guint8 * ) & addr_ipv6 , offset + 4 , sizeof addr_ipv6 ) ;
proto_item_append_text ( te , " %s " , ip6_to_str ( ( struct e_in6_addr * ) & addr_ipv6 ) ) ;
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proto_tree_add_ipv6 ( ext_tree_gsn_addr , gtp_version ? hf_gtpv1_gsn_ipv6 : hf_gtpv0_gsn_ipv6 , tvb , offset + 4 , 16 , ( guint8 * ) & addr_ipv6 ) ;
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break ;
default :
proto_item_append_text ( te , " unknown type or wrong length " ) ;
break ;
}
return 3 + length ;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.24
* UMTS : 29.060 v4 .0 , chapter 7.7 .33
*/
static int
decode_gtp_msisdn ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
const guint8 * msisdn_val ;
gchar * msisdn_str ;
guint16 length ;
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length = tvb_get_ntohs ( tvb , offset + 1 ) ;
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if ( length < 1 ) return 3 ;
msisdn_val = tvb_get_ptr ( tvb , offset + 3 , length ) ;
msisdn_str = msisdn_to_str ( msisdn_val , length ) ;
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proto_tree_add_string ( tree , gtp_version ? hf_gtpv1_msisdn : hf_gtpv0_msisdn , tvb , offset , 3 + length , msisdn_str ) ;
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return 3 + length ;
}
/* GPRS: not present
* UMTS : 29.060 v4 .0 , chapter 7.7 .34
* 24.008 v4 .2 , chapter 10.5 .6 .5
*/
static int
decode_gtp_qos_umts ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
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return decode_qos_umts ( tvb , offset , tree , " Quality of Service " , 2 ) ;
2001-09-11 08:14:39 +00:00
}
/* 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 , proto_tree * tree ) {
return ( 1 + decode_quintuplet ( tvb , offset + 1 , tree , 1 , 1 ) ) ;
}
/* 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 , proto_tree * tree ) {
guint16 length , port1 , port2 , tos ;
guint8 tft_code , no_packet_filters , i , pf_id , pf_eval , pf_len , pf_content_id , pf_offset , proto ;
guint32 addr_ipv4 , ipsec_id , label ;
struct e_in6_addr addr_ipv6 ;
proto_tree * ext_tree_tft , * ext_tree_tft_pf ;
proto_item * te , * tee ;
length = tvb_get_ntohs ( tvb , offset + 1 ) ;
te = proto_tree_add_text ( tree , tvb , offset , 3 + length , " Traffic flow template " ) ;
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ext_tree_tft = proto_item_add_subtree ( te , ett_gtp_tft ) ;
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tft_code = ( tvb_get_guint8 ( tvb , offset + 3 ) > > 5 ) & 0x07 ;
no_packet_filters = tvb_get_guint8 ( tvb , offset + 3 ) & 0x0F ;
proto_tree_add_text ( ext_tree_tft , tvb , offset + 1 , 2 , " TFT length: %u " , length ) ;
proto_tree_add_text ( ext_tree_tft , tvb , offset + 3 , 1 , " TFT operation code: %u " , tft_code ) ;
proto_tree_add_text ( ext_tree_tft , tvb , offset + 3 , 1 , " Number of packet filters: %u " , no_packet_filters ) ;
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 ) ;
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ext_tree_tft_pf = proto_item_add_subtree ( tee , ett_gtp_tft_pf ) ;
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if ( tft_code ! = 2 ) {
pf_eval = tvb_get_guint8 ( tvb , offset + 1 ) ;
pf_len = tvb_get_guint8 ( tvb , offset + 2 ) ;
proto_tree_add_text ( ext_tree_tft_pf , tvb , offset + 1 , 1 , " Evaluation precedence: %u " , pf_eval ) ;
proto_tree_add_text ( ext_tree_tft_pf , tvb , offset + 2 , 1 , " Contents length: %u " , pf_len ) ;
offset = offset + 3 ;
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 :
proto_tree_add_text ( ext_tree_tft_pf , tvb , offset + pf_offset , 1 , " Address IPv4 and mask (0x10) " ) ;
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tvb_memcpy ( tvb , ( guint8 * ) & addr_ipv4 , offset + pf_offset + 1 , sizeof addr_ipv4 ) ;
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proto_tree_add_text ( ext_tree_tft_pf , tvb , offset + pf_offset + 1 , 4 , " \t Address: %s " , ip_to_str ( ( guint8 * ) & addr_ipv4 ) ) ;
2001-10-30 21:31:15 +00:00
tvb_memcpy ( tvb , ( guint8 * ) & addr_ipv4 , offset + pf_offset + 5 , sizeof addr_ipv4 ) ;
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proto_tree_add_text ( ext_tree_tft_pf , tvb , offset + pf_offset + 5 , 4 , " \t Netmask: %s " , ip_to_str ( ( guint8 * ) & addr_ipv4 ) ) ;
pf_offset = pf_offset + 9 ;
break ;
/* address IPv6 and mask = 32 bytes*/
case 0x20 :
proto_tree_add_text ( ext_tree_tft_pf , tvb , offset + pf_offset , 1 , " Address IPv6 and mask (0x20) " ) ;
tvb_memcpy ( tvb , ( guint8 * ) & addr_ipv6 , offset + pf_offset + 1 , sizeof addr_ipv6 ) ;
proto_tree_add_text ( ext_tree_tft_pf , tvb , offset + offset + 1 , 16 , " \t Address: %s " , ip6_to_str ( ( struct e_in6_addr * ) & addr_ipv6 ) ) ;
tvb_memcpy ( tvb , ( guint8 * ) & addr_ipv6 , offset + pf_offset + 17 , sizeof addr_ipv6 ) ;
proto_tree_add_text ( ext_tree_tft_pf , tvb , offset + offset + 17 , 16 , " \t Netmask: %s " , ip6_to_str ( ( struct e_in6_addr * ) & addr_ipv6 ) ) ;
pf_offset = pf_offset + 33 ;
break ;
/* protocol identifier/next header type = 1 byte*/
case 0x30 :
proto_tree_add_text ( ext_tree_tft_pf , tvb , offset + pf_offset , 1 , " IPv4 protocol identifier/IPv6 next header (0x30) " ) ;
proto = tvb_get_guint8 ( tvb , offset + pf_offset + 1 ) ;
proto_tree_add_text ( ext_tree_tft_pf , tvb , offset + pf_offset + 1 , 1 , " \t %u " , proto ) ;
pf_offset = pf_offset + 2 ;
break ;
/* single destination port type = 2 bytes */
case 0x40 :
proto_tree_add_text ( ext_tree_tft_pf , tvb , offset + pf_offset , 1 , " Destination port (0x40) " ) ;
port1 = tvb_get_ntohs ( tvb , offset + pf_offset + 1 ) ;
proto_tree_add_text ( ext_tree_tft_pf , tvb , offset + pf_offset + 1 , 2 , " \t %u " , port1 ) ;
pf_offset = pf_offset + 3 ;
break ;
/* destination port range type = 4 bytes */
case 0x41 :
proto_tree_add_text ( ext_tree_tft_pf , tvb , offset + pf_offset , 1 , " Destination port range (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 + 1 , 4 , " \t %u-%u " , port1 , port2 ) ;
pf_offset = pf_offset + 5 ;
break ;
/* single source port type = 2 bytes */
case 0x50 :
proto_tree_add_text ( ext_tree_tft_pf , tvb , offset + pf_offset , 1 , " Source port (0x50) " ) ;
port1 = tvb_get_ntohs ( tvb , offset + pf_offset + 1 ) ;
proto_tree_add_text ( ext_tree_tft_pf , tvb , offset + pf_offset + 1 , 2 , " \t %u " , port1 ) ;
pf_offset = pf_offset + 3 ;
break ;
/* source port range type = 4 bytes */
case 0x51 :
proto_tree_add_text ( ext_tree_tft_pf , tvb , offset + pf_offset , 1 , " Source port range (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 + 1 , 4 , " \t %u-%u " , port1 , port2 ) ;
pf_offset = pf_offset + 5 ;
break ;
/* security parameter index type = 4 bytes */
case 0x60 :
proto_tree_add_text ( ext_tree_tft_pf , tvb , offset + pf_offset , 1 , " Security parameter index (0x60) " ) ;
ipsec_id = tvb_get_ntohl ( tvb , offset + pf_offset + 1 ) ;
proto_tree_add_text ( ext_tree_tft_pf , tvb , offset + pf_offset + 1 , 4 , " \t %x " , ipsec_id ) ;
pf_offset = pf_offset + 5 ;
break ;
/* type of service/traffic class type = 2 bytes */
case 0x70 :
proto_tree_add_text ( ext_tree_tft_pf , tvb , offset + pf_offset , 1 , " Type of Service/Traffic Class (0x70) " ) ;
tos = tvb_get_ntohs ( tvb , offset + pf_offset + 1 ) ;
proto_tree_add_text ( ext_tree_tft_pf , tvb , offset + pf_offset + 1 , 2 , " \t %u " , tos ) ;
pf_offset = pf_offset + 3 ;
break ;
/* flow label type = 3 bytes */
case 0x80 :
proto_tree_add_text ( ext_tree_tft_pf , tvb , offset + pf_offset , 1 , " Flow label (0x80) " ) ;
label = tvb_get_ntoh24 ( tvb , offset + pf_offset + 1 ) & 0x0FFFFF ; ;
proto_tree_add_text ( ext_tree_tft_pf , tvb , offset + pf_offset + 1 , 3 , " \t %x " , label ) ;
pf_offset = pf_offset + 4 ;
break ;
2001-04-04 01:00:19 +00:00
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default :
break ;
}
}
}
}
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2001-09-11 08:14:39 +00:00
return 3 + length ;
}
/* GPRS: not present
* UMTS : 29.060 v4 .0 , chapter 7.7 .37
* 25.413 v3 .4 , chapter ? ? ?
*/
static int
decode_gtp_target_id ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
guint16 length ;
2001-04-04 01:00:19 +00:00
2001-09-11 08:14:39 +00:00
length = tvb_get_ntohs ( tvb , offset + 1 ) ;
proto_tree_add_text ( tree , tvb , offset , 3 + length , " Targer Identification " ) ;
2001-04-04 01:00:19 +00:00
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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 , proto_tree * tree ) {
guint16 length ;
length = tvb_get_ntohs ( tvb , offset + 1 ) ;
proto_tree_add_text ( tree , tvb , offset , 3 + length , " UTRAN transparent field " ) ;
return 3 + length ;
}
2001-04-04 01:00:19 +00:00
2001-09-11 08:14:39 +00:00
/* 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 , proto_tree * tree ) {
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2001-09-11 08:14:39 +00:00
guint32 teid , addr_ipv4 ;
guint16 length ;
guint8 nsapi ;
struct e_in6_addr addr_ipv6 ;
proto_tree * ext_tree_rab_setup ;
proto_item * te ;
2001-04-04 01:00:19 +00:00
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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 " ) ;
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ext_tree_rab_setup = proto_item_add_subtree ( te , ett_gtp_rab_setup ) ;
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proto_tree_add_text ( ext_tree_rab_setup , tvb , offset + 1 , 2 , " RAB setup length : %u " , length ) ;
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proto_tree_add_uint ( ext_tree_rab_setup , hf_gtpv1_nsapi , tvb , offset + 3 , 1 , nsapi ) ;
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if ( length > 1 ) {
teid = tvb_get_ntohl ( tvb , offset + 4 ) ;
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proto_tree_add_uint ( ext_tree_rab_setup , hf_gtpv1_teid_data , tvb , offset + 4 , 4 , teid ) ;
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2001-09-11 08:14:39 +00:00
switch ( length ) {
case 12 :
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tvb_memcpy ( tvb , ( guint8 * ) & addr_ipv4 , offset + 8 , sizeof addr_ipv4 ) ;
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proto_tree_add_ipv4 ( ext_tree_rab_setup , hf_gtpv1_rnc_ipv4 , tvb , offset + 8 , 4 , addr_ipv4 ) ;
2001-04-04 01:00:19 +00:00
break ;
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case 24 :
tvb_memcpy ( tvb , ( guint8 * ) & addr_ipv6 , offset + 8 , sizeof addr_ipv6 ) ;
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proto_tree_add_ipv6 ( ext_tree_rab_setup , hf_gtpv1_rnc_ipv6 , tvb , offset + 8 , 16 , ( guint8 * ) & addr_ipv6 ) ;
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break ;
2001-04-04 03:29:49 +00:00
default :
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break ;
2001-04-04 01:00:19 +00:00
}
}
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return 3 + length ;
2001-04-04 01:00:19 +00:00
}
2001-09-11 08:14:39 +00:00
/* GPRS: not present
* UMTS : 29.060 v4 .0 , chapter 7.7 .40
*/
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static int
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decode_gtp_hdr_list ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
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int i ;
guint8 length , hdr ;
proto_tree * ext_tree_hdr_list ;
proto_item * te ;
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2001-09-11 08:14:39 +00:00
length = tvb_get_guint8 ( tvb , offset + 1 ) ;
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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 ) ;
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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 ) ;
2001-10-04 00:30:23 +00:00
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 ) ;
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}
return 2 + length ;
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}
2001-09-11 08:14:39 +00:00
/* GPRS: not present
* UMTS : 29.060 v4 .0 , chapter 7.7 .41
* TODO : find TriggerID description
*/
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static int
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decode_gtp_trigger_id ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
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guint16 length ;
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2001-09-11 08:14:39 +00:00
length = tvb_get_ntohs ( tvb , offset + 1 ) ;
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proto_tree_add_text ( tree , tvb , offset , 3 + length , " %s length : %u " , val_to_str ( GTP_EXT_TRIGGER_ID , gtp_val , " Unknown " ) , length ) ;
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return 3 + length ;
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}
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/* 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 , proto_tree * tree ) {
guint16 length ;
length = tvb_get_ntohs ( tvb , offset + 1 ) ;
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proto_tree_add_text ( tree , tvb , offset , 3 + length , " %s length : %u " , val_to_str ( GTP_EXT_OMC_ID , gtp_val , " Unknown " ) , length ) ;
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return 3 + length ;
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}
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/* GPRS: 9.60 v7.6.0, chapter 7.9.25
* UMTS : 29.060 v4 .0 , chapter 7.7 .43
*/
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static int
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decode_gtp_chrg_addr ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
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guint16 length ;
guint32 addr_ipv4 ;
struct e_in6_addr addr_ipv6 ;
proto_tree * ext_tree_chrg_addr ;
proto_item * te ;
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length = tvb_get_ntohs ( tvb , offset + 1 ) ;
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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 ) ;
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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 ) ;
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switch ( length ) {
case 4 :
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tvb_memcpy ( tvb , ( guint8 * ) & addr_ipv4 , offset + 3 , sizeof addr_ipv4 ) ;
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proto_item_append_text ( te , " %s " , ip_to_str ( ( guint8 * ) & addr_ipv4 ) ) ;
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proto_tree_add_ipv4 ( ext_tree_chrg_addr , gtp_version ? hf_gtpv1_chrg_ipv4 : hf_gtpv0_chrg_ipv4 , tvb , offset + 3 , 4 , addr_ipv4 ) ;
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break ;
case 16 :
tvb_memcpy ( tvb , ( guint8 * ) & addr_ipv6 , offset + 3 , sizeof addr_ipv6 ) ;
proto_item_append_text ( te , " %s " , ip6_to_str ( ( struct e_in6_addr * ) & addr_ipv6 ) ) ;
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proto_tree_add_ipv6 ( ext_tree_chrg_addr , gtp_version ? hf_gtpv1_chrg_ipv6 : hf_gtpv0_chrg_ipv6 , tvb , offset + 3 , 16 , ( guint8 * ) & addr_ipv6 ) ;
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break ;
default :
proto_item_append_text ( te , " unknown type or wrong length " ) ;
break ;
}
return 3 + length ;
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}
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/* GPRS: 12.15
* UMTS : 33.015
*/
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static int
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decode_gtp_rel_pack ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
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guint16 length , n , number ;
proto_tree * ext_tree_rel_pack ;
proto_item * te ;
length = tvb_get_ntohs ( tvb , offset + 1 ) ;
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te = proto_tree_add_text ( tree , tvb , offset , 3 + length , " Sequence numbers of released packets IE " ) ;
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ext_tree_rel_pack = proto_item_add_subtree ( te , ett_gtp_rel_pack ) ;
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n = 0 ;
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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 ;
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}
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/* GPRS: 12.15
* UMTS : 33.015
*/
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static int
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decode_gtp_can_pack ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
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guint16 length , n , number ;
proto_tree * ext_tree_can_pack ;
proto_item * te ;
length = tvb_get_ntohs ( tvb , offset + 1 ) ;
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te = proto_tree_add_text ( tree , tvb , offset , 3 + length , " Sequence numbers of cancelled packets IE " ) ;
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ext_tree_can_pack = proto_item_add_subtree ( te , ett_gtp_can_pack ) ;
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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 ;
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}
/* CDRs dissector */
static int
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decode_gtp_data_req ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
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guint16 length , format_ver , data_len , i , j ;
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guint8 no , format , rectype ;
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proto_tree * ext_tree , * cdr_tree ;
proto_item * te , * ce ;
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te = proto_tree_add_text ( tree , tvb , offset , 1 , val_to_str ( GTP_EXT_DATA_REQ , gtp_val , " Unknown message " ) ) ;
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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 ) ;
data_len = 0 ;
offset = offset + 7 ;
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if ( gtpv0_cdr_as ! = DONT_DISSECT_CDRS ) {
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for ( i = 0 ; i < no ; i + + ) {
data_len = tvb_get_ntohs ( tvb , offset ) ;
rectype = tvb_get_guint8 ( tvb , offset + 2 ) ;
switch ( rectype ) {
case 0x13 : /* GCDR */
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if ( tvb_length_remaining ( tvb , offset ) < 3 + 118 ) {
proto_tree_add_text ( ext_tree , tvb , offset , tvb_length_remaining ( tvb , offset ) , " GCDR fragmented, can't dissect " ) ;
break ;
}
tvb_memcpy ( tvb , gcdr . imsi , offset + 3 , 8 ) ;
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tvb_memcpy ( tvb , ( guint8 * ) & gcdr . ggsnaddr , offset + 11 , sizeof gcdr . ggsnaddr ) ;
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gcdr . chrgid = tvb_get_ntohl ( tvb , offset + 15 ) ;
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tvb_memcpy ( tvb , ( guint8 * ) & gcdr . sgsnaddr , offset + 19 , sizeof gcdr . sgsnaddr ) ;
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tvb_memcpy ( tvb , gcdr . apn , offset + 23 , 63 ) ;
gcdr . pdporg = tvb_get_guint8 ( tvb , offset + 86 ) ;
gcdr . pdptype = tvb_get_guint8 ( tvb , offset + 87 ) ;
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tvb_memcpy ( tvb , ( guint8 * ) & gcdr . pdpaddr , offset + 88 , sizeof gcdr . pdpaddr ) ;
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gcdr . addrflag = tvb_get_guint8 ( tvb , offset + 92 ) ;
gcdr . uplink = tvb_get_ntohl ( tvb , offset + 96 ) ;
gcdr . downlink = tvb_get_ntohl ( tvb , offset + 100 ) ;
gcdr . timestamp = tvb_get_ntohl ( tvb , offset + 104 ) ;
gcdr . opening = tvb_get_ntohl ( tvb , offset + 108 ) ;
gcdr . duration = tvb_get_ntohl ( tvb , offset + 112 ) ;
gcdr . closecause = tvb_get_guint8 ( tvb , offset + 116 ) ;
gcdr . seqno = tvb_get_ntohl ( tvb , offset + 117 ) ;
ce = proto_tree_add_text ( ext_tree , tvb , offset , data_len + 2 , " GCDR (0x13), sequence number: %u " , gcdr . seqno ) ;
cdr_tree = proto_item_add_subtree ( ce , ett_gtp_ext ) ;
proto_tree_add_text ( cdr_tree , tvb , offset , 2 , " Length: %u " , data_len ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 2 , 1 , " Type: %u (%x) " , rectype , rectype ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 3 , 8 , " IMSI: %s " , id_to_str ( gcdr . imsi ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 11 , 4 , " GGSN address: %s " , ip_to_str ( ( guint8 * ) & gcdr . ggsnaddr ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 15 , 4 , " Charging ID: %x " , gcdr . chrgid ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 19 , 4 , " SGSN address: %s " , ip_to_str ( ( guint8 * ) & gcdr . sgsnaddr ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 23 , 63 , " APN: %s " , gcdr . apn ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 86 , 1 , " PDP org: %s " , val_to_str ( gcdr . pdporg , pdp_org_type , " Unknown PDP org " ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 87 , 1 , " PDP type: %s " , val_to_str ( gcdr . pdptype , pdp_type , " Unknown PDP type " ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 88 , 4 , " PDP address: %s " , ip_to_str ( ( guint8 * ) & gcdr . pdpaddr ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 92 , 1 , " PDP address type: %u " , gcdr . addrflag ) ;
decode_qos_gprs ( tvb , offset + 93 , cdr_tree , " QoS " , 0 ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 96 , 4 , " Uplink volume: %u " , gcdr . uplink ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 100 , 4 , " Downlink volume: %u " , gcdr . downlink ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 104 , 4 , " Timestamp: %s " , time_int_to_str ( gcdr . timestamp ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 108 , 4 , " Record opening time: %s " , time_int_to_str ( gcdr . opening ) ) ;
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proto_tree_add_text ( cdr_tree , tvb , offset + 112 , 4 , " Duration: %s " , rel_time_int_to_str ( gcdr . duration ) ) ;
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proto_tree_add_text ( cdr_tree , tvb , offset + 116 , 1 , " Cause for close: %s (%u) " , val_to_str ( gcdr . closecause , cdr_close_type , " Unknown cause " ) , gcdr . closecause ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 117 , 4 , " Sequence number: %u " , gcdr . seqno ) ;
if ( data_len > 119 ) {
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tvb_memcpy ( tvb , gcdr . msisdn , offset + 121 , 9 ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 121 , 9 , " MSISDN: %s " , msisdn_to_str ( gcdr . msisdn , 9 ) ) ;
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}
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break ;
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case 0x12 : /* SCDR */
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if ( tvb_length_remaining ( tvb , offset ) < 3 + 277 ) {
proto_tree_add_text ( ext_tree , tvb , offset , tvb_length_remaining ( tvb , offset ) , " SCDR fragmented, can't dissect " ) ;
break ;
}
scdr . len = tvb_get_letohs ( tvb , offset + 3 ) ;
scdr . netini = tvb_get_guint8 ( tvb , offset + 5 ) ;
scdr . anon = tvb_get_guint8 ( tvb , offset + 6 ) ;
scdr . imsilen = tvb_get_guint8 ( tvb , offset + 7 ) ;
tvb_memcpy ( tvb , scdr . imsi , offset + 8 , 8 ) ;
tvb_memcpy ( tvb , scdr . imei , offset + 16 , 8 ) ;
scdr . msisdnlen = tvb_get_guint8 ( tvb , offset + 24 ) ;
tvb_memcpy ( tvb , scdr . msisdn , offset + 25 , 10 ) ;
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tvb_memcpy ( tvb , ( guint8 * ) & scdr . sgsnaddr , offset + 35 , sizeof scdr . sgsnaddr ) ;
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tvb_memcpy ( tvb , scdr . msclass_notused , offset + 39 , 12 ) ;
scdr . msclass_caplen = tvb_get_guint8 ( tvb , offset + 51 ) ;
scdr . msclass_cap = tvb_get_guint8 ( tvb , offset + 52 ) ;
scdr . msclass_capomit = tvb_get_ntohs ( tvb , offset + 53 ) ;
scdr . lac = tvb_get_ntohs ( tvb , offset + 55 ) ;
scdr . rac = tvb_get_guint8 ( tvb , offset + 57 ) ;
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scdr . cid = tvb_get_ntohs ( tvb , offset + 58 ) ;
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scdr . chrgid = tvb_get_ntohl ( tvb , offset + 60 ) ;
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tvb_memcpy ( tvb , ( guint8 * ) & scdr . ggsnaddr , offset + 64 , sizeof scdr . ggsnaddr ) ;
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tvb_memcpy ( tvb , scdr . apn , offset + 68 , 64 ) ;
scdr . pdporg = tvb_get_guint8 ( tvb , offset + 132 ) ;
scdr . pdptype = tvb_get_guint8 ( tvb , offset + 133 ) ;
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tvb_memcpy ( tvb , ( guint8 * ) & scdr . pdpaddr , offset + 134 , sizeof scdr . pdpaddr ) ;
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scdr . listind = tvb_get_guint8 ( tvb , offset + 138 ) ;
for ( j = 0 ; j < 4 ; j + + ) {
scdr . change [ j ] . change = tvb_get_guint8 ( tvb , offset + 139 + 23 * j ) ;
scdr . change [ j ] . time1 = tvb_get_ntohl ( tvb , offset + 140 + 23 * j ) ;
scdr . change [ j ] . time2 = tvb_get_ntohl ( tvb , offset + 144 + 23 * j ) ;
scdr . change [ j ] . uplink = tvb_get_ntohl ( tvb , offset + 148 + 23 * j ) ;
scdr . change [ j ] . downlink = tvb_get_ntohl ( tvb , offset + 152 + 23 * j ) ;
/* tvb_memcpy(tvb, scdr.change[j].qos_req, offset+156+23*j, 3);
tvb_memcpy ( tvb , scdr . change [ j ] . qos_neg , offset + 159 + 23 * j , 3 ) ; */
}
scdr . timestamp = tvb_get_ntohl ( tvb , offset + 254 ) ;
scdr . opening = tvb_get_ntohl ( tvb , offset + 258 ) ;
scdr . duration = tvb_get_ntohl ( tvb , offset + 262 ) ;
scdr . sgsnchange = tvb_get_guint8 ( tvb , offset + 266 ) ;
scdr . closecause = tvb_get_guint8 ( tvb , offset + 267 ) ;
scdr . diag1 = tvb_get_guint8 ( tvb , offset + 268 ) ;
scdr . diag2 = tvb_get_guint8 ( tvb , offset + 269 ) ;
scdr . diag3 = tvb_get_guint8 ( tvb , offset + 270 ) ;
scdr . diag4 = tvb_get_guint8 ( tvb , offset + 271 ) ;
scdr . diag5 = tvb_get_ntohl ( tvb , offset + 272 ) ;
scdr . seqno = tvb_get_ntohl ( tvb , offset + 276 ) ;
ce = proto_tree_add_text ( ext_tree , tvb , offset , data_len + 2 , " SCDR (type %x), sequence number: %u " , rectype , scdr . seqno ) ;
cdr_tree = proto_item_add_subtree ( ce , ett_gtp_ext ) ;
proto_tree_add_text ( cdr_tree , tvb , offset , 2 , " Length: %u " , data_len ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 2 , 1 , " Type: %u (%x) " , rectype , rectype ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 3 , 2 , " CDR length: %u " , scdr . len ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 5 , 1 , " Network initiated PDP context: %s " , yesno [ scdr . netini ] ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 6 , 1 , " Anonymous acces: %s " , yesno [ scdr . anon ] ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 7 , 1 , " IMSI length: %u " , scdr . imsilen ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 8 , 8 , " IMSI: %s " , id_to_str ( scdr . imsi ) ) ;
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proto_tree_add_text ( cdr_tree , tvb , offset + 16 , 8 , " IMEI: %s " , id_to_str ( scdr . imei ) ) ;
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proto_tree_add_text ( cdr_tree , tvb , offset + 24 , 1 , " MSISDN length: %u " , scdr . msisdnlen ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 25 , 10 , " MSISDN: %s " , msisdn_to_str ( scdr . msisdn , 10 ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 35 , 4 , " SGSN address: %s " , ip_to_str ( ( guint8 * ) & scdr . sgsnaddr ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 39 , 12 , " (not used) " ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 51 , 1 , " MS network capability length: %u " , scdr . msclass_caplen ) ;
/* cap_id = proto_tree_add_text(cdr_tree, tvb, offset+52, 1, "MS network capability: %u", scdr.msclass_cap);
cap_tree = proto_item_add_subtree ( cap_id , ett_chrg_cap ) ;
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proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_gea , tvb , offset + 52 , 1 , scdr . cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_sm_gsm , tvb , offset + 52 , 1 , scdr . cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_sm_gprs , tvb , offset + 52 , 1 , scdr . cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_ucs2 , tvb , offset + 52 , 1 , scdr . cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_ss , tvb , offset + 52 , 1 , scdr . cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_solsa , tvb , offset + 52 , 1 , scdr . cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_pad , tvb , offset + 52 , 1 , scdr . cap ) ;
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*/
proto_tree_add_text ( cdr_tree , tvb , offset + 53 , 2 , " MS network capability omitted: %u " , scdr . msclass_capomit ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 55 , 2 , " LAC: %u " , scdr . lac ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 57 , 1 , " RAC: %u " , scdr . rac ) ;
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proto_tree_add_text ( cdr_tree , tvb , offset + 58 , 2 , " Cell ID: %u " , scdr . cid ) ;
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proto_tree_add_text ( cdr_tree , tvb , offset + 60 , 4 , " Charging ID: %x " , scdr . chrgid ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 64 , 4 , " GGSN address: %s " , ip_to_str ( ( guint8 * ) & scdr . ggsnaddr ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 68 , 64 , " APN: %s " , scdr . apn ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 132 , 1 , " PDP org: %s " , val_to_str ( scdr . pdporg , pdp_org_type , " Unknown PDP org " ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 133 , 1 , " PDP type: %s " , val_to_str ( scdr . pdptype , pdp_type , " Unknown PDP type " ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 134 , 4 , " PDP address: %s " , ip_to_str ( ( guint8 * ) & scdr . pdpaddr ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 138 , 1 , " List of data volume index: %u " , scdr . listind ) ;
for ( j = 0 ; j < 4 ; j + + ) {
proto_tree_add_text ( cdr_tree , tvb , offset + 139 + 23 * j , 1 , " List of data vol change condition: %u " , scdr . change [ j ] . change ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 140 + 23 * j , 4 , " Time1: %x " , scdr . change [ j ] . time1 ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 144 + 23 * j , 4 , " Time2: %x " , scdr . change [ j ] . time2 ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 148 + 23 * j , 4 , " Uplink: %x " , scdr . change [ j ] . uplink ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 152 + 23 * j , 4 , " Downlink: %x " , scdr . change [ j ] . downlink ) ;
decode_qos_gprs ( tvb , offset + 156 , cdr_tree , " QoS requested " , 0 ) ;
decode_qos_gprs ( tvb , offset + 159 , cdr_tree , " QoS negotiated " , 0 ) ;
}
proto_tree_add_text ( cdr_tree , tvb , offset + 254 , 4 , " Timestamp: %s " , time_int_to_str ( scdr . timestamp ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 258 , 4 , " Opening: %s " , time_int_to_str ( scdr . opening ) ) ;
2002-01-31 09:59:22 +00:00
proto_tree_add_text ( cdr_tree , tvb , offset + 262 , 4 , " Duration: %s " , rel_time_int_to_str ( scdr . duration ) ) ;
2001-09-11 08:14:39 +00:00
proto_tree_add_text ( cdr_tree , tvb , offset + 266 , 1 , " SGSN change: %u " , scdr . sgsnchange ) ;
2001-09-19 06:08:36 +00:00
proto_tree_add_text ( cdr_tree , tvb , offset + 267 , 1 , " Cause for close: %s (%u) " , val_to_str ( scdr . closecause , cdr_close_type , " Unknown cause " ) , scdr . closecause ) ;
2001-09-11 08:14:39 +00:00
proto_tree_add_text ( cdr_tree , tvb , offset + 268 , 1 , " Diagnostics 1: %u " , scdr . diag1 ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 269 , 1 , " Diagnostics 2: %u " , scdr . diag2 ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 270 , 1 , " Diagnostics 3: %u " , scdr . diag3 ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 271 , 1 , " Diagnostics 4: %u " , scdr . diag4 ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 272 , 4 , " Diagnostics 5: %u " , scdr . diag5 ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 276 , 4 , " Sequence number: %u " , scdr . seqno ) ;
2001-04-04 01:00:19 +00:00
break ;
case 0x14 : /* MCDR */
2001-09-11 08:14:39 +00:00
if ( tvb_length_remaining ( tvb , offset ) < 3 + 147 ) {
proto_tree_add_text ( ext_tree , tvb , offset , tvb_length_remaining ( tvb , offset ) , " MCDR fragmented, can't dissect " ) ;
break ;
}
2001-09-19 06:08:36 +00:00
2001-09-11 08:14:39 +00:00
mcdr . len = tvb_get_ntohs ( tvb , offset + 3 ) ;
mcdr . imsilen = tvb_get_guint8 ( tvb , offset + 5 ) ;
tvb_memcpy ( tvb , mcdr . imsi , offset + 6 , 8 ) ;
tvb_memcpy ( tvb , mcdr . imei , offset + 14 , 8 ) ;
mcdr . msisdnlen = tvb_get_guint8 ( tvb , offset + 22 ) ;
tvb_memcpy ( tvb , mcdr . msisdn , offset + 23 , 10 ) ;
2001-10-30 21:31:15 +00:00
tvb_memcpy ( tvb , ( guint8 * ) & mcdr . sgsnaddr , offset + 33 , sizeof mcdr . sgsnaddr ) ;
2001-09-11 08:14:39 +00:00
tvb_memcpy ( tvb , mcdr . msclass_notused , offset + 37 , 12 ) ;
mcdr . msclass_caplen = tvb_get_guint8 ( tvb , offset + 49 ) ;
mcdr . msclass_cap = tvb_get_guint8 ( tvb , offset + 50 ) ;
mcdr . msclass_capomit = tvb_get_ntohs ( tvb , offset + 51 ) ;
mcdr . lac = tvb_get_ntohs ( tvb , offset + 53 ) ;
mcdr . rac = tvb_get_guint8 ( tvb , offset + 55 ) ;
mcdr . cid = tvb_get_ntohs ( tvb , offset + 56 ) ;
mcdr . change_count = tvb_get_guint8 ( tvb , offset + 58 ) ;
for ( j = 0 ; j < 4 ; j + + ) {
mcdr . change [ j ] . lac = tvb_get_ntohs ( tvb , offset + 59 + 13 * j ) ;
mcdr . change [ j ] . rac = tvb_get_guint8 ( tvb , offset + 61 + 13 * j ) ;
mcdr . change [ j ] . cid = tvb_get_ntohs ( tvb , offset + 62 + 13 * j ) ;
tvb_memcpy ( tvb , mcdr . change [ j ] . omit , offset + 64 + 13 * j , 8 ) ;
}
mcdr . timestamp = tvb_get_ntohl ( tvb , offset + 124 ) ;
mcdr . opening = tvb_get_ntohl ( tvb , offset + 128 ) ;
mcdr . duration = tvb_get_ntohl ( tvb , offset + 132 ) ;
mcdr . sgsnchange = tvb_get_guint8 ( tvb , offset + 136 ) ;
mcdr . closecause = tvb_get_guint8 ( tvb , offset + 137 ) ;
mcdr . diag1 = tvb_get_guint8 ( tvb , offset + 138 ) ;
mcdr . diag2 = tvb_get_guint8 ( tvb , offset + 139 ) ;
mcdr . diag3 = tvb_get_guint8 ( tvb , offset + 140 ) ;
mcdr . diag4 = tvb_get_guint8 ( tvb , offset + 141 ) ;
mcdr . diag5 = tvb_get_ntohl ( tvb , offset + 142 ) ;
mcdr . seqno = tvb_get_ntohl ( tvb , offset + 146 ) ;
2001-09-19 06:08:36 +00:00
ce = proto_tree_add_text ( ext_tree , tvb , offset , data_len + 2 , " MCDR (0x14), sequence number: %u " , mcdr . seqno ) ;
cdr_tree = proto_item_add_subtree ( ce , ett_gtp_ext ) ;
proto_tree_add_text ( cdr_tree , tvb , offset , 2 , " Length: %u " , data_len ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 2 , 1 , " Type: %u (%x) " , rectype , rectype ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 3 , 2 , " MCDR length: %u " , mcdr . len ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 5 , 1 , " IMSI length: %u " , mcdr . imsilen ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 6 , 8 , " IMSI: %s " , id_to_str ( mcdr . imsi ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 14 , 8 , " IMEI: %s " , id_to_str ( mcdr . imei ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 22 , 1 , " MSISDN length: %u " , mcdr . msisdnlen ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 23 , 10 , " MSISDN: %s " , msisdn_to_str ( mcdr . msisdn , 10 ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 33 , 4 , " SGSN address: %s " , ip_to_str ( ( guint8 * ) & mcdr . sgsnaddr ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 37 , 12 , " (not used) " ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 49 , 1 , " MS network capability length: %u " , mcdr . msclass_caplen ) ;
/* cap_id = proto_tree_add_text(cdr_tree, tvb, offset+50, 1, "MS network capability: %u", mcdr.msclass_cap);
cap_tree = proto_item_add_subtree ( cap_id , ett_chrg_cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_gea , tvb , offset + 50 , 1 , mcdr . cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_sm_gsm , tvb , offset + 50 , 1 , mcdr . cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_sm_gprs , tvb , offset + 50 , 1 , mcdr . cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_ucs2 , tvb , offset + 50 , 1 , mcdr . cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_ss , tvb , offset + 50 , 1 , mcdr . cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_solsa , tvb , offset + 50 , 1 , mcdr . cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_pad , tvb , offset + 50 , 1 , mcdr . cap ) ;
*/
proto_tree_add_text ( cdr_tree , tvb , offset + 51 , 2 , " MS network capability omitted: %u " , mcdr . msclass_capomit ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 53 , 2 , " LAC: %u " , mcdr . lac ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 55 , 1 , " RAC: %u " , mcdr . rac ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 56 , 2 , " Cell ID: %u " , mcdr . cid ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 58 , 1 , " List of data volume changes: %u " , mcdr . change_count ) ;
for ( j = 0 ; j < 4 ; j + + ) {
proto_tree_add_text ( cdr_tree , tvb , offset + 59 + 13 * j , 2 , " LAC: %u " , mcdr . change [ j ] . lac ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 61 + 13 * j , 1 , " RAC: %u " , mcdr . change [ j ] . rac ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 62 + 13 * j , 2 , " CID: %u " , mcdr . change [ j ] . cid ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 64 + 13 * j , 8 , " (omitted) " ) ;
}
proto_tree_add_text ( cdr_tree , tvb , offset + 124 , 4 , " Timestamp: %s " , time_int_to_str ( mcdr . timestamp ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 128 , 4 , " Record opening time: %s " , time_int_to_str ( mcdr . opening ) ) ;
2002-01-31 09:59:22 +00:00
proto_tree_add_text ( cdr_tree , tvb , offset + 132 , 4 , " Duration: %s " , rel_time_int_to_str ( mcdr . duration ) ) ;
2001-09-19 06:08:36 +00:00
proto_tree_add_text ( cdr_tree , tvb , offset + 136 , 1 , " SGSN change: %u " , mcdr . sgsnchange ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 137 , 1 , " Cause for close: %s (%u) " , val_to_str ( mcdr . closecause , cdr_close_type , " Unknown cause " ) , mcdr . closecause ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 138 , 1 , " Diagnostics 1: %u " , mcdr . diag1 ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 139 , 1 , " Diagnostics 2: %u " , mcdr . diag2 ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 140 , 1 , " Diagnostics 3: %u " , mcdr . diag3 ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 141 , 1 , " Diagnostics 4: %u " , mcdr . diag4 ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 142 , 4 , " Diagnostics 5: %u " , mcdr . diag5 ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 146 , 4 , " Sequence number: %u " , mcdr . seqno ) ;
2001-04-04 01:00:19 +00:00
break ;
2001-09-19 06:08:36 +00:00
2001-04-04 01:00:19 +00:00
case 0x15 : /* SOCDR */
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if ( tvb_length_remaining ( tvb , offset ) < 3 + 80 ) {
proto_tree_add_text ( ext_tree , tvb , offset , tvb_length_remaining ( tvb , offset ) , " SOCDR fragmented, can't dissect " ) ;
break ;
}
socdr . len = tvb_get_ntohs ( tvb , offset + 3 ) ;
socdr . imsilen = tvb_get_guint8 ( tvb , offset + 5 ) ;
tvb_memcpy ( tvb , socdr . imsi , offset + 6 , 8 ) ;
tvb_memcpy ( tvb , socdr . imei , offset + 14 , 8 ) ;
socdr . msisdnlen = tvb_get_guint8 ( tvb , offset + 22 ) ;
tvb_memcpy ( tvb , socdr . msisdn , offset + 23 , 10 ) ;
tvb_memcpy ( tvb , socdr . msclass_notused , offset + 33 , 12 ) ;
socdr . msclass_caplen = tvb_get_guint8 ( tvb , offset + 45 ) ;
socdr . msclass_cap = tvb_get_guint8 ( tvb , offset + 46 ) ;
socdr . msclass_capomit = tvb_get_ntohs ( tvb , offset + 47 ) ;
tvb_memcpy ( tvb , socdr . serv_centr , offset + 49 , 9 ) ;
tvb_memcpy ( tvb , socdr . rec_ent , offset + 58 , 9 ) ;
socdr . lac = tvb_get_ntohs ( tvb , offset + 67 ) ;
socdr . rac = tvb_get_guint8 ( tvb , offset + 69 ) ;
socdr . cid = tvb_get_ntohs ( tvb , offset + 70 ) ;
socdr . time1 = tvb_get_ntohl ( tvb , offset + 72 ) ;
socdr . time2 = tvb_get_ntohl ( tvb , offset + 76 ) ;
socdr . messref = tvb_get_guint8 ( tvb , offset + 80 ) ;
socdr . smsres = tvb_get_ntohs ( tvb , offset + 81 ) ;
ce = proto_tree_add_text ( ext_tree , tvb , offset , data_len + 2 , " SOCDR (0x15) " ) ;
cdr_tree = proto_item_add_subtree ( ce , ett_gtp_ext ) ;
proto_tree_add_text ( cdr_tree , tvb , offset , 2 , " Length: %u " , data_len ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 2 , 1 , " Type: %u (%x) " , rectype , rectype ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 3 , 2 , " MCDR length: %u " , socdr . len ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 5 , 1 , " IMSI length: %u " , socdr . imsilen ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 6 , 8 , " IMSI: %s " , id_to_str ( socdr . imsi ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 14 , 8 , " IMEI: %s " , id_to_str ( socdr . imei ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 22 , 1 , " MSISDN length: %u " , socdr . msisdnlen ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 23 , 10 , " MSISDN: %s " , msisdn_to_str ( socdr . msisdn , 10 ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 33 , 12 , " (not used) " ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 45 , 1 , " MS network capability length: %u " , socdr . msclass_caplen ) ;
/* cap_id = proto_tree_add_text(cdr_tree, tvb, offset+46, 1, "MS network capability: %u", socdr.msclass_cap);
cap_tree = proto_item_add_subtree ( cap_id , ett_chrg_cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_gea , tvb , offset + 46 , 1 , socdr . cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_sm_gsm , tvb , offset + 46 , 1 , socdr . cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_sm_gprs , tvb , offset + 46 , 1 , socdr . cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_ucs2 , tvb , offset + 46 , 1 , socdr . cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_ss , tvb , offset + 46 , 1 , socdr . cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_solsa , tvb , offset + 46 , 1 , socdr . cap ) ;
*/
proto_tree_add_text ( cdr_tree , tvb , offset + 47 , 2 , " MS network capability omitted: %u " , stcdr . msclass_capomit ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 49 , 9 , " SMSC E.164 address: %s " , msisdn_to_str ( socdr . serv_centr , 9 ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 58 , 9 , " SGSN E.164 address: %s " , msisdn_to_str ( socdr . rec_ent , 9 ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 67 , 2 , " LAC: %u " , socdr . lac ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 69 , 1 , " RAC: %u " , socdr . rac ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 70 , 2 , " Cell ID: %u " , socdr . cid ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 72 , 4 , " Time1: %s " , time_int_to_str ( socdr . time1 ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 76 , 4 , " Time2: %s " , time_int_to_str ( socdr . time2 ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 80 , 1 , " Message reference: %u " , socdr . messref ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 81 , 2 , " Delivery result: %u " , socdr . smsres ) ;
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break ;
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case 0x16 : /* STCDR */
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if ( tvb_length_remaining ( tvb , offset ) < 3 + 79 ) {
proto_tree_add_text ( ext_tree , tvb , offset , tvb_length_remaining ( tvb , offset ) , " STCDR fragmented, can't dissect " ) ;
break ;
}
stcdr . len = tvb_get_ntohs ( tvb , offset + 3 ) ;
stcdr . imsilen = tvb_get_guint8 ( tvb , offset + 5 ) ;
tvb_memcpy ( tvb , stcdr . imsi , offset + 6 , 8 ) ;
tvb_memcpy ( tvb , stcdr . imei , offset + 14 , 8 ) ;
stcdr . msisdnlen = tvb_get_guint8 ( tvb , offset + 22 ) ;
tvb_memcpy ( tvb , stcdr . msisdn , offset + 23 , 10 ) ;
tvb_memcpy ( tvb , stcdr . msclass_notused , offset + 33 , 12 ) ;
stcdr . msclass_caplen = tvb_get_guint8 ( tvb , offset + 45 ) ;
stcdr . msclass_cap = tvb_get_guint8 ( tvb , offset + 46 ) ;
stcdr . msclass_capomit = tvb_get_ntohs ( tvb , offset + 47 ) ;
tvb_memcpy ( tvb , stcdr . serv_centr , offset + 49 , 9 ) ;
tvb_memcpy ( tvb , stcdr . rec_ent , offset + 58 , 9 ) ;
stcdr . lac = tvb_get_ntohs ( tvb , offset + 67 ) ;
stcdr . rac = tvb_get_guint8 ( tvb , offset + 69 ) ;
stcdr . cid = tvb_get_ntohs ( tvb , offset + 70 ) ;
stcdr . time1 = tvb_get_ntohl ( tvb , offset + 72 ) ;
stcdr . time2 = tvb_get_ntohl ( tvb , offset + 76 ) ;
stcdr . smsres = tvb_get_ntohs ( tvb , offset + 80 ) ;
ce = proto_tree_add_text ( ext_tree , tvb , offset , data_len + 2 , " STCDR (0x16) " ) ;
cdr_tree = proto_item_add_subtree ( ce , ett_gtp_ext ) ;
proto_tree_add_text ( cdr_tree , tvb , offset , 2 , " Length: %u " , data_len ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 2 , 1 , " Type: %u (%x) " , rectype , rectype ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 3 , 2 , " MCDR length: %u " , stcdr . len ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 5 , 1 , " IMSI length: %u " , stcdr . imsilen ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 6 , 8 , " IMSI: %s " , id_to_str ( stcdr . imsi ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 14 , 8 , " IMEI: %s " , id_to_str ( stcdr . imei ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 22 , 1 , " MSISDN length: %u " , stcdr . msisdnlen ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 23 , 10 , " MSISDN: %s " , msisdn_to_str ( stcdr . msisdn , 10 ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 33 , 12 , " (not used) " ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 45 , 1 , " MS network capability length: %u " , stcdr . msclass_caplen ) ;
/* cap_id = proto_tree_add_text(cdr_tree, tvb, offset+46, 1, "MS network capability: %u", stcdr.msclass_cap);
cap_tree = proto_item_add_subtree ( cap_id , ett_chrg_cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_gea , tvb , offset + 46 , 1 , stcdr . cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_sm_gsm , tvb , offset + 46 , 1 , stcdr . cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_sm_gprs , tvb , offset + 46 , 1 , stcdr . cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_ucs2 , tvb , offset + 46 , 1 , stcdr . cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_ss , tvb , offset + 46 , 1 , stcdr . cap ) ;
proto_tree_add_uint ( cap_tree , hf_gtpv0_chrg_cap_solsa , tvb , offset + 46 , 1 , stcdr . cap ) ;
*/
proto_tree_add_text ( cdr_tree , tvb , offset + 47 , 2 , " MS network capability omitted: %u " , stcdr . msclass_capomit ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 49 , 9 , " SMSC E.164 address: %s " , msisdn_to_str ( stcdr . serv_centr , 9 ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 58 , 9 , " SGSN E.164 address: %s " , msisdn_to_str ( stcdr . rec_ent , 9 ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 67 , 2 , " LAC: %u " , stcdr . lac ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 69 , 1 , " RAC: %u " , stcdr . rac ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 70 , 2 , " Cell ID: %u " , stcdr . cid ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 72 , 4 , " Time1: %s " , time_int_to_str ( stcdr . time1 ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 76 , 4 , " Time2: %s " , time_int_to_str ( stcdr . time2 ) ) ;
proto_tree_add_text ( cdr_tree , tvb , offset + 80 , 2 , " Delivery result: %u " , stcdr . smsres ) ;
break ;
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}
offset = offset + 2 + data_len ;
}
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}
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return 3 + length ;
}
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/* GPRS: 12.15
* UMTS : 33.015
*/
static int
decode_gtp_data_resp ( tvbuff_t * tvb , int offset , packet_info * pinfo , 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 " ) ;
2001-09-19 06:08:36 +00:00
ext_tree_data_resp = proto_item_add_subtree ( te , ett_gtp_data_resp ) ;
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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 ;
}
2001-04-04 01:00:19 +00:00
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/* GPRS: 12.15
* UMTS : 33.015
*/
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static int
decode_gtp_node_addr ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
2001-09-11 08:14:39 +00:00
guint16 length ;
guint32 addr_ipv4 ;
struct e_in6_addr addr_ipv6 ;
proto_tree * ext_tree_node_addr ;
proto_item * te ;
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length = tvb_get_ntohs ( tvb , offset + 1 ) ;
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te = proto_tree_add_text ( tree , tvb , offset , 3 + length , " Node address: " ) ;
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ext_tree_node_addr = proto_item_add_subtree ( te , ett_gtp_node_addr ) ;
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proto_tree_add_text ( ext_tree_node_addr , tvb , offset + 1 , 2 , " Node address length: %u " , length ) ;
switch ( length ) {
case 4 :
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tvb_memcpy ( tvb , ( guint8 * ) & addr_ipv4 , offset + 3 , sizeof addr_ipv4 ) ;
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proto_item_append_text ( te , " %s " , ip_to_str ( ( guint8 * ) & addr_ipv4 ) ) ;
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proto_tree_add_ipv4 ( ext_tree_node_addr , gtp_version ? hf_gtpv1_node_ipv4 : hf_gtpv0_node_ipv4 , tvb , offset + 3 , 4 , addr_ipv4 ) ;
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break ;
case 16 :
tvb_memcpy ( tvb , ( guint8 * ) & addr_ipv6 , offset + 3 , sizeof addr_ipv6 ) ;
proto_item_append_text ( te , " %s " , ip6_to_str ( ( struct e_in6_addr * ) & addr_ipv6 ) ) ;
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proto_tree_add_ipv6 ( ext_tree_node_addr , gtp_version ? hf_gtpv1_node_ipv6 : hf_gtpv0_node_ipv6 , tvb , offset + 3 , 16 , ( guint8 * ) & addr_ipv6 ) ;
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break ;
default :
proto_item_append_text ( te , " unknown type or wrong length " ) ;
break ;
}
return 3 + length ;
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}
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/* GPRS: 9.60 v7.6.0, chapter 7.9.26
* UMTS : 29.060 v4 .0 , chapter 7.7 .44
*/
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static int
decode_gtp_priv_ext ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
guint16 length , ext_id ;
gchar ext_val [ 64 ] ;
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proto_tree * ext_tree_priv_ext ;
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proto_item * te ;
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te = proto_tree_add_text ( tree , tvb , offset , 1 , val_to_str ( GTP_EXT_PRIV_EXT , gtp_val , " Unknown message " ) ) ;
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ext_tree_priv_ext = proto_item_add_subtree ( te , ett_gtp_ext ) ;
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length = tvb_get_ntohs ( tvb , offset + 1 ) ;
if ( length < 1 ) return 3 + length ;
ext_id = tvb_get_ntohs ( tvb , offset + 3 ) ;
tvb_memcpy ( tvb , ext_val , offset + 5 , length > 65 ? 63 : length - 2 ) ;
ext_val [ length > 65 ? 64 : length - 1 ] = ' \0 ' ;
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proto_tree_add_uint ( ext_tree_priv_ext , gtp_version ? hf_gtpv1_ext_id : hf_gtpv0_ext_id , tvb , offset + 3 , 2 , ext_id ) ;
proto_tree_add_string ( ext_tree_priv_ext , gtp_version ? hf_gtpv1_ext_val : hf_gtpv0_ext_val , tvb , offset + 5 , length - 2 , ext_val ) ;
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return 3 + length ;
}
static int
decode_gtp_unknown ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ) {
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proto_tree_add_text ( tree , tvb , offset , 1 , " Unknown extension header " ) ;
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return tvb_length_remaining ( tvb , offset ) ;
}
static void
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dissect_gtpv0 ( tvbuff_t * tvb , packet_info * pinfo , proto_tree * tree )
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{
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_gtpv0_hdr gtpv0_hdr ;
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proto_item * ti , * tf ;
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proto_tree * gtpv0_tree , * flags_tree ;
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guint8 ext_hdr_val ;
tvbuff_t * next_tvb ;
const guint8 * tid_val ;
gchar * tid_str ;
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int offset , length , i , mandatory , checked_field ;
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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 ) ;
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tvb_memcpy ( tvb , ( guint8 * ) & gtpv0_hdr , 0 , 12 ) ;
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tid_val = tvb_get_ptr ( tvb , 12 , 8 ) ;
tid_str = id_to_str ( tid_val ) ;
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gtp_version = ( gtpv0_hdr . flags > > 5 ) & 0x07 ;
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if ( ! ( ( gtpv0_hdr . flags > > 4 ) & 1 ) ) {
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if ( check_col ( pinfo - > cinfo , COL_PROTOCOL ) )
col_set_str ( pinfo - > cinfo , COL_PROTOCOL , " GTP-CDR " ) ;
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} else {
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switch ( ( gtpv0_hdr . flags > > 5 ) & 0x07 ) {
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case 0 : if ( check_col ( pinfo - > cinfo , COL_PROTOCOL ) )
col_set_str ( pinfo - > cinfo , COL_PROTOCOL , " GTP " ) ;
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break ;
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case 1 : if ( check_col ( pinfo - > cinfo , COL_PROTOCOL ) )
col_set_str ( pinfo - > cinfo , COL_PROTOCOL , " GTPv1 " ) ;
default : if ( check_col ( pinfo - > cinfo , COL_PROTOCOL ) )
col_set_str ( pinfo - > cinfo , COL_PROTOCOL , " GTPv? " ) ;
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break ;
}
}
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if ( check_col ( pinfo - > cinfo , COL_INFO ) )
col_add_str ( pinfo - > cinfo , COL_INFO , val_to_str ( gtpv0_hdr . message , message_type , " Unknown " ) ) ;
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if ( tree ) {
/* dissect GTP header */
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ti = proto_tree_add_item ( tree , proto_gtpv0 , tvb , 0 , - 1 , FALSE ) ;
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gtpv0_tree = proto_item_add_subtree ( ti , ett_gtp ) ;
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tf = proto_tree_add_uint ( gtpv0_tree , hf_gtpv0_flags , tvb , 0 , 1 , gtpv0_hdr . flags ) ;
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flags_tree = proto_item_add_subtree ( tf , ett_gtp_flags ) ;
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proto_tree_add_uint ( flags_tree , hf_gtpv0_flags_ver , tvb , 0 , 1 , gtpv0_hdr . flags ) ;
proto_tree_add_uint ( flags_tree , hf_gtpv0_flags_pt , tvb , 0 , 1 , gtpv0_hdr . flags ) ;
proto_tree_add_uint ( flags_tree , hf_gtpv0_flags_spare , tvb , 0 , 1 , gtpv0_hdr . flags ) ;
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proto_tree_add_boolean ( flags_tree , hf_gtpv0_flags_snn , tvb , 0 , 1 , gtpv0_hdr . flags ) ;
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gtpv0_hdr . length = ntohs ( gtpv0_hdr . length ) ;
gtpv0_hdr . seq_no = ntohs ( gtpv0_hdr . seq_no ) ;
proto_tree_add_uint ( gtpv0_tree , hf_gtpv0_message_type , tvb , 1 , 1 , gtpv0_hdr . message ) ;
proto_tree_add_uint ( gtpv0_tree , hf_gtpv0_length , tvb , 2 , 2 , gtpv0_hdr . length ) ;
proto_tree_add_uint ( gtpv0_tree , hf_gtpv0_seq_number , tvb , 4 , 2 , gtpv0_hdr . seq_no ) ;
proto_tree_add_uint ( gtpv0_tree , hf_gtpv0_flow_label , tvb , 6 , 2 , gtpv0_hdr . flow_label ) ;
proto_tree_add_uint ( gtpv0_tree , hf_gtpv0_sndcp_number , tvb , 8 , 1 , gtpv0_hdr . sndcp_no ) ;
proto_tree_add_string ( gtpv0_tree , hf_gtpv0_tid , tvb , 12 , 8 , tid_str ) ;
if ( gtpv0_hdr . message ! = GTP_MSG_TPDU ) {
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proto_tree_add_text ( gtpv0_tree , tvb , 0 , 0 , " [--- end of GTPv0 header, beginning of extension headers ---] " ) ;
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offset = GTPv0_HDR_LENGTH ;
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length = tvb_length ( tvb ) ;
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mandatory = 0 ; /* check order of GTP fields against ETSI */
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for ( ; ; ) {
if ( offset > = length ) break ;
ext_hdr_val = tvb_get_guint8 ( tvb , offset ) ;
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if ( gtpv0_etsi_order ) {
checked_field = check_field_presence ( gtpv0_hdr . message , ext_hdr_val , ( int * ) & mandatory ) ;
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switch ( checked_field ) {
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case - 2 : proto_tree_add_text ( gtpv0_tree , tvb , 0 , 0 , " [WARNING] message not found " ) ;
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break ;
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case - 1 : proto_tree_add_text ( gtpv0_tree , tvb , 0 , 0 , " [WARNING] field not present " ) ;
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break ;
case 0 : break ;
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default : proto_tree_add_text ( gtpv0_tree , tvb , offset , 1 , " [WARNING] wrong next field, should be: %s " , val_to_str ( checked_field , gtp_val , " Unknown extension field " ) ) ;
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}
}
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i = - 1 ;
while ( gtpopt [ + + i ] . optcode ) if ( gtpopt [ i ] . optcode = = ext_hdr_val ) break ;
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offset = offset + ( * gtpopt [ i ] . decode ) ( tvb , offset , pinfo , gtpv0_tree ) ;
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}
}
}
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/* next part dissects sublayers of GTP
* right now it ' s only IP */
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if ( ( gtpv0_hdr . message = = GTP_MSG_TPDU ) & & gtp_tpdu ) {
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next_tvb = tvb_new_subset ( tvb , 20 , - 1 , - 1 ) ;
call_dissector ( ip_handle , next_tvb , pinfo , tree ) ;
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if ( check_col ( pinfo - > cinfo , COL_PROTOCOL ) )
col_append_str_gtp ( pinfo - > cinfo , COL_PROTOCOL , " GTP " ) ;
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}
}
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/* GTP v1 dissector */
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static void
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dissect_gtpv1 ( tvbuff_t * tvb , packet_info * pinfo , proto_tree * tree ) {
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_gtpv1_hdr gtpv1_hdr ;
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proto_item * ti , * tf ;
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proto_tree * gtpv1_tree , * flags_tree ;
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guint16 seq_no ;
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guint8 ext_hdr_val , i , hdr_offset = 4 , next_hdr , npdu_no , probe ;
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tvbuff_t * next_tvb ;
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int offset , length , mandatory , checked_field ;
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if ( check_col ( pinfo - > cinfo , COL_PROTOCOL ) )
col_set_str ( pinfo - > cinfo , COL_PROTOCOL , " GTP-C " ) ;
if ( check_col ( pinfo - > cinfo , COL_INFO ) )
col_clear ( pinfo - > cinfo , COL_INFO ) ;
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tvb_memcpy ( tvb , ( guint8 * ) & gtpv1_hdr , 0 , 8 ) ;
gtp_version = ( gtpv1_hdr . flags > > 5 ) & 0x07 ;
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if ( check_col ( pinfo - > cinfo , COL_INFO ) )
col_add_str ( pinfo - > cinfo , COL_INFO , val_to_str ( gtpv1_hdr . message , message_type , " Unknown " ) ) ;
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if ( tree ) {
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ti = proto_tree_add_item ( tree , proto_gtpv1 , tvb , 0 , - 1 , FALSE ) ;
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gtpv1_tree = proto_item_add_subtree ( ti , ett_gtp ) ;
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tf = proto_tree_add_uint ( gtpv1_tree , hf_gtpv1_flags , tvb , 0 , 1 , gtpv1_hdr . flags ) ;
flags_tree = proto_item_add_subtree ( tf , ett_gtp_flags ) ;
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proto_tree_add_uint ( flags_tree , hf_gtpv1_flags_ver , tvb , 0 , 1 , gtpv1_hdr . flags ) ;
proto_tree_add_uint ( flags_tree , hf_gtpv1_flags_pt , tvb , 0 , 1 , gtpv1_hdr . flags ) ;
proto_tree_add_uint ( flags_tree , hf_gtpv1_flags_spare , tvb , 0 , 1 , gtpv1_hdr . flags ) ;
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proto_tree_add_boolean ( flags_tree , hf_gtpv1_flags_e , tvb , 0 , 1 , gtpv1_hdr . flags ) ;
proto_tree_add_boolean ( flags_tree , hf_gtpv1_flags_s , tvb , 0 , 1 , gtpv1_hdr . flags ) ;
proto_tree_add_boolean ( flags_tree , hf_gtpv1_flags_pn , tvb , 0 , 1 , gtpv1_hdr . flags ) ;
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gtpv1_hdr . length = ntohs ( gtpv1_hdr . length ) ;
gtpv1_hdr . teid = ntohl ( gtpv1_hdr . teid ) ;
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proto_tree_add_uint ( gtpv1_tree , hf_gtpv1_message_type , tvb , 1 , 1 , gtpv1_hdr . message ) ;
proto_tree_add_uint ( gtpv1_tree , hf_gtpv1_length , tvb , 2 , 2 , gtpv1_hdr . length ) ;
proto_tree_add_uint ( gtpv1_tree , hf_gtpv1_teid , tvb , 4 , 4 , gtpv1_hdr . teid ) ;
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if ( gtpv1_hdr . flags & 0x07 ) {
seq_no = tvb_get_ntohs ( tvb , 8 ) ;
proto_tree_add_uint ( gtpv1_tree , hf_gtpv1_seq_number , tvb , 8 , 2 , seq_no ) ;
npdu_no = tvb_get_guint8 ( tvb , 10 ) ;
proto_tree_add_uint ( gtpv1_tree , hf_gtpv1_npdu_number , tvb , 10 , 1 , npdu_no ) ;
next_hdr = tvb_get_guint8 ( tvb , 11 ) ;
proto_tree_add_uint ( gtpv1_tree , hf_gtpv1_next , tvb , 11 , 1 , next_hdr ) ;
hdr_offset = 0 ;
if ( next_hdr ) hdr_offset = 1 ;
else hdr_offset = 0 ;
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}
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if ( gtpv1_hdr . message ! = GTP_MSG_TPDU ) {
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proto_tree_add_text ( gtpv1_tree , tvb , 0 , 0 , " [--- end of GTP v1 header, beginning of extension headers ---] " ) ;
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offset = GTPv1_HDR_LENGTH - hdr_offset ;
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length = tvb_length ( tvb ) ;
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mandatory = 0 ; /* check order of GTP fields against ETSI */
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for ( ; ; ) {
if ( offset > = length ) break ;
ext_hdr_val = tvb_get_guint8 ( tvb , offset ) ;
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if ( gtpv1_etsi_order ) {
checked_field = check_field_presence ( gtpv1_hdr . message , ext_hdr_val , ( int * ) & mandatory ) ;
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switch ( checked_field ) {
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case - 2 : proto_tree_add_text ( gtpv1_tree , tvb , 0 , 0 , " [WARNING] message not found " ) ;
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break ;
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case - 1 : proto_tree_add_text ( gtpv1_tree , tvb , 0 , 0 , " [WARNING] field not present " ) ;
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break ;
case 0 : break ;
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default : proto_tree_add_text ( gtpv1_tree , tvb , offset , 1 , " [WARNING] wrong next field, should be: %s " , val_to_str ( checked_field , gtp_val , " Unknown extension field " ) ) ;
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}
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}
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i = - 1 ;
while ( gtpopt [ + + i ] . optcode ) if ( gtpopt [ i ] . optcode = = ext_hdr_val ) break ;
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offset = offset + ( * gtpopt [ i ] . decode ) ( tvb , offset , pinfo , gtpv1_tree ) ;
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}
}
}
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if ( gtpv1_hdr . message = = GTP_MSG_ERR_IND )
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if ( check_col ( pinfo - > cinfo , COL_PROTOCOL ) )
col_add_str ( pinfo - > cinfo , COL_PROTOCOL , " GTP-U " ) ;
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if ( ( gtpv1_hdr . message = = GTP_MSG_TPDU ) & & gtp_tpdu ) {
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if ( gtpv1_hdr . flags & 0x07 ) {
if ( tvb_get_guint8 ( tvb , 11 ) ) hdr_offset = 1 ; /* if next_hdr != 0 */
else hdr_offset = 0 ;
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}
next_tvb = tvb_new_subset ( tvb , GTPv1_HDR_LENGTH - hdr_offset , - 1 , - 1 ) ;
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call_dissector ( ip_handle , next_tvb , pinfo , tree ) ;
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if ( check_col ( pinfo - > cinfo , COL_PROTOCOL ) )
col_append_str_gtp ( pinfo - > cinfo , COL_PROTOCOL , " GTP-U " ) ;
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}
}
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static const true_false_string yes_no_tfs = {
" yes " ,
" no "
} ;
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void
proto_register_gtp ( void )
{
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static hf_register_info hf_gtpv0 [ ] = {
{ & hf_gtpv0_flags , { " Flags " , " gtpv0.flags " , FT_UINT8 , BASE_HEX , NULL , 0 , " Ver/PT/Spare/SNN " , HFILL } } ,
{ & hf_gtpv0_flags_ver , { " Version " , " gtpv0.flags.version " , FT_UINT8 , BASE_DEC , VALS ( ver_types ) , GTP_VER_MASK , " GTP Version " , HFILL } } ,
{ & hf_gtpv0_flags_pt , { " Protocol type " , " gtpv0.flags.payload " , FT_UINT8 , BASE_DEC , NULL , GTP_PT_MASK , " Protocol Type (1 = GTP, 0 = GTP' ) " , HFILL } } ,
{ & hf_gtpv0_flags_spare , { " Reserved " , " gtpv0.flags.reserved " , FT_UINT8 , BASE_DEC , NULL , GTP_SPARE_MASK , " Reserved (shall be sent as '111' ) " , HFILL } } ,
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{ & hf_gtpv0_flags_snn , { " Is SNDCP N-PDU included? " , " gtpv0.flags.snn " , FT_BOOLEAN , 8 , TFS ( & yes_no_tfs ) , GTP_SNN_MASK , " Is SNDCP N-PDU LLC Number included? (1 = yes, 0 = no) " , HFILL } } ,
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{ & hf_gtpv0_message_type , { " Message type " , " gtpv0.message " , FT_UINT8 , BASE_HEX , VALS ( message_type ) , 0x0 , " GTP Message Type " , HFILL } } ,
{ & hf_gtpv0_length , { " Length " , " gtpv0.length " , FT_UINT16 , BASE_DEC , NULL , 0 , " Length (i.e. number of octets after TID or TEID) " , HFILL } } ,
{ & hf_gtpv0_seq_number , { " Sequence number " , " gtpv0.seq_number " , FT_UINT16 , BASE_HEX , NULL , 0 , " Sequence Number " , HFILL } } ,
{ & hf_gtpv0_flow_label , { " Flow label " , " gtpv0.flow_label " , FT_UINT16 , BASE_HEX , NULL , 0 , " Flow label " , HFILL } } ,
{ & hf_gtpv0_sndcp_number , { " SNDCP N-PDU LLC Number " , " gtpv0.sndcp_number " , FT_UINT8 , BASE_HEX , NULL , 0 , " SNDCP N-PDU LLC Number " , HFILL } } ,
{ & hf_gtpv0_tid , { " TID " , " gtpv0.tid " , FT_STRING , BASE_DEC , NULL , 0 , " Tunnel Identifier " , HFILL } } ,
{ & hf_gtpv0_cause , { " Cause " , " gtpv0.cause " , FT_UINT8 , BASE_DEC , VALS ( cause_type ) , 0 , " Cause of operation " , HFILL } } ,
{ & hf_gtpv0_imsi , { " IMSI " , " gtpv0.imsi " , FT_STRING , BASE_DEC , NULL , 0 , " International Mobile Subscriber Identity number " , HFILL } } ,
{ & hf_gtpv0_rai_mcc , { " MCC " , " gtpv0.mcc " , FT_UINT16 , BASE_DEC , NULL , 0 , " Mobile Country Code " , HFILL } } ,
{ & hf_gtpv0_rai_mnc , { " MNC " , " gtpv0.mnc " , FT_UINT8 , BASE_DEC , NULL , 0 , " Mobile Network Code " , HFILL } } ,
{ & hf_gtpv0_rai_rac , { " RAC " , " gtpv0.rac " , FT_UINT8 , BASE_DEC , NULL , 0 , " Routing Area Code " , HFILL } } ,
{ & hf_gtpv0_rai_lac , { " LAC " , " gtpv0.lac " , FT_UINT16 , BASE_DEC , NULL , 0 , " Location Area Code " , HFILL } } ,
{ & hf_gtpv0_tlli , { " TLLI " , " gtpv0.tlli " , FT_UINT32 , BASE_HEX , NULL , 0 , " Temporary Logical Link Identity " , HFILL } } ,
{ & hf_gtpv0_ptmsi , { " P-TMSI " , " gtpv0.ptmsi " , FT_UINT32 , BASE_HEX , NULL , 0 , " Packet-Temporary Mobile Subscriber Identity " , HFILL } } ,
{ & hf_gtpv0_qos_spare1 , { " Spare " , " gtpv0.qos_spare1 " , FT_UINT8 , BASE_DEC , NULL , GTP_EXT_QOS_SPARE1_MASK , " Spare (shall be sent as '00' ) " , HFILL } } ,
{ & hf_gtpv0_qos_delay , { " QoS delay " , " gtpv0.qos_delay " , FT_UINT8 , BASE_DEC , VALS ( qos_delay_type ) , GTP_EXT_QOS_DELAY_MASK , " Quality of Service Delay Class " , HFILL } } ,
{ & hf_gtpv0_qos_reliability , { " QoS reliability " , " gtpv0.qos_reliabilty " , FT_UINT8 , BASE_DEC , VALS ( qos_reliability_type ) , GTP_EXT_QOS_RELIABILITY_MASK , " Quality of Service Reliability Class " , HFILL } } ,
{ & hf_gtpv0_qos_peak , { " QoS peak " , " gtpv0.qos_peak " , FT_UINT8 , BASE_DEC , VALS ( qos_peak_type ) , GTP_EXT_QOS_PEAK_MASK , " Quality of Service Peak Throughput " , HFILL } } ,
{ & hf_gtpv0_qos_spare2 , { " Spare " , " gtpv0.qos_spare2 " , FT_UINT8 , BASE_DEC , NULL , GTP_EXT_QOS_SPARE2_MASK , " Spare (shall be sent as 0) " , HFILL } } ,
{ & hf_gtpv0_qos_precedence , { " QoS precedence " , " gtpv0.qos_precedence " , FT_UINT8 , BASE_DEC , VALS ( qos_precedence_type ) , GTP_EXT_QOS_PRECEDENCE_MASK , " Quality of Service Precedence Class " , HFILL } } ,
{ & hf_gtpv0_qos_spare3 , { " Spare " , " gtpv0.qos_spare3 " , FT_UINT8 , BASE_DEC , NULL , GTP_EXT_QOS_SPARE3_MASK , " Spare (shall be sent as '000' ) " , HFILL } } ,
{ & hf_gtpv0_qos_mean , { " QoS mean " , " gtpv0.qos_mean " , FT_UINT8 , BASE_DEC , VALS ( qos_mean_type ) , GTP_EXT_QOS_MEAN_MASK , " Quality of Service Mean Throughput " , HFILL } } ,
{ & hf_gtpv0_reorder , { " Reordering required " , " gtpv0.reorder " , FT_BOOLEAN , BASE_NONE , NULL , 0 , " Reordering required " , HFILL } } ,
{ & hf_gtpv0_map_cause , { " MAP cause " , " gtpv0.map_cause " , FT_UINT8 , BASE_DEC , VALS ( map_cause_type ) , 0 , " MAP cause " , HFILL } } ,
{ & hf_gtpv0_ptmsi_sig , { " P-TMSI signature " , " gtpv0.ptmsi_sig " , FT_UINT24 , BASE_HEX , NULL , 0 , " P-TMSI Signature " , HFILL } } ,
{ & hf_gtpv0_ms_valid , { " MS validated " , " gtpv0.ms_valid " , FT_BOOLEAN , BASE_NONE , NULL , 0 , " MS validated " , HFILL } } ,
{ & hf_gtpv0_recovery , { " Recovery " , " gtpv0.recovery " , FT_UINT8 , BASE_DEC , NULL , 0 , " Restart counter " , HFILL } } ,
{ & hf_gtpv0_sel_mode , { " Selection mode " , " gtpv0.sel_mode " , FT_UINT8 , BASE_DEC , VALS ( sel_mode_type ) , 0 , " Selection Mode " , HFILL } } ,
{ & hf_gtpv0_ext_flow_label , { " Flow Label Data I " , " gtpv0.ext_flow_label " , FT_UINT16 , BASE_DEC , NULL , 0 , " Flow label data " , HFILL } } ,
{ & hf_gtpv0_flow_sig , { " Flow label Signalling " , " gtpv0.flow_sig " , FT_UINT16 , BASE_DEC , NULL , 0 , " Flow label signalling " , HFILL } } ,
{ & hf_gtpv0_nsapi , { " NSAPI " , " gtpv0.nsapi " , FT_UINT8 , BASE_DEC , NULL , 0 , " Network layer Service Access Point Identifier " , HFILL } } ,
{ & hf_gtpv0_flow_ii , { " Flow Label Data II " , " gtpv0.flow_ii " , FT_UINT16 , BASE_DEC , NULL , 0 , " Downlink flow label data " , HFILL } } ,
{ & hf_gtpv0_ms_reason , { " MS not reachable reason " , " gtpv0.ms_reason " , FT_UINT8 , BASE_DEC , VALS ( ms_not_reachable_type ) , 0 , " MS Not Reachable Reason " , HFILL } } ,
{ & hf_gtpv0_tr_comm , { " Packet transfer command " , " gtpv0.tr_comm " , FT_UINT8 , BASE_DEC , VALS ( tr_comm_type ) , 0 , " Packat transfer command " , HFILL } } ,
{ & hf_gtpv0_chrg_id , { " Charging ID " , " gtpv0.chrg_id " , FT_UINT32 , BASE_HEX , NULL , 0 , " Charging ID " , HFILL } } ,
{ & hf_gtpv0_user_ipv4 , { " End user address IPv4 " , " gtpv0.user_ipv4 " , FT_IPv4 , BASE_DEC , NULL , 0 , " End user address IPv4 " , HFILL } } ,
{ & hf_gtpv0_user_ipv6 , { " End user address IPv6 " , " gtpv0.user_ipv6 " , FT_IPv6 , BASE_HEX , NULL , 0 , " End user address IPv6 " , HFILL } } ,
{ & hf_gtpv0_user_addr_pdp_org , { " PDP type organization " , " gtpv0.user_addr_pdp_org " , FT_UINT8 , BASE_DEC , VALS ( pdp_org_type ) , 0 , " PDP type organization " , HFILL } } ,
{ & hf_gtpv0_user_addr_pdp_type , { " PDP type number " , " gtpv0.user_addr_pdp_type " , FT_UINT8 , BASE_HEX , VALS ( pdp_type ) , 0 , " PDP type " , HFILL } } ,
{ & hf_gtpv0_apn , { " APN " , " gtpv0.apn " , FT_STRING , BASE_DEC , NULL , 0 , " Access Point Name " , HFILL } } ,
{ & hf_gtpv0_gsn_addr_type , { " GSN address type " , " gtpv0.gsn_addr_type " , FT_UINT8 , BASE_DEC , VALS ( gsn_addr_type ) , GTP_EXT_GSN_ADDR_TYPE_MASK , " GSN Address Type " , HFILL } } ,
{ & hf_gtpv0_gsn_addr_len , { " GSN address length " , " gtpv0.gsn_addr_len " , FT_UINT8 , BASE_DEC , NULL , GTP_EXT_GSN_ADDR_LEN_MASK , " GSN Address Length " , HFILL } } ,
{ & hf_gtpv0_gsn_ipv4 , { " GSN address IPv4 " , " gtpv0.gsn_ipv4 " , FT_IPv4 , BASE_DEC , NULL , 0 , " GSN address IPv4 " , HFILL } } ,
{ & hf_gtpv0_gsn_ipv6 , { " GSN address IPv6 " , " gtpv0.gsn_ipv6 " , FT_IPv6 , BASE_DEC , NULL , 0 , " GSN address IPv6 " , HFILL } } ,
{ & hf_gtpv0_msisdn , { " MSISDN " , " gtpv0.msisdn " , FT_STRING , BASE_DEC , NULL , 0 , " MS international PSTN/ISDN number " , HFILL } } ,
{ & hf_gtpv0_chrg_ipv4 , { " CG address IPv4 " , " gtpv0.chrg_ipv4 " , FT_IPv4 , BASE_DEC , NULL , 0 , " Charging Gateway address IPv4 " , HFILL } } ,
{ & hf_gtpv0_chrg_ipv6 , { " CG address IPv6 " , " gtpv0.chrg_ipv6 " , FT_IPv6 , BASE_HEX , NULL , 0 , " Charging Gateway address IPv6 " , HFILL } } ,
{ & hf_gtpv0_node_ipv4 , { " Node address IPv4 " , " gtpv0.node_ipv4 " , FT_IPv4 , BASE_DEC , NULL , 0 , " Recommended node address IPv4 " , HFILL } } ,
{ & hf_gtpv0_node_ipv6 , { " Node address IPv6 " , " gtpv0.node_ipv6 " , FT_IPv6 , BASE_HEX , NULL , 0 , " Recommended node address IPv6 " , HFILL } } ,
{ & hf_gtpv0_ext_id , { " Extension identifier " , " gtpv0.ext_id " , FT_UINT16 , BASE_DEC , NULL , 0 , " Extension Identifier " , HFILL } } ,
{ & hf_gtpv0_ext_val , { " Extension value " , " gtpv0.ext_val " , FT_STRING , BASE_DEC , NULL , 0 , " Extension Value " , HFILL } } ,
{ & hf_gtpv0_unknown , { " Unknown data (length) " , " gtpv0.unknown " , FT_UINT16 , BASE_DEC , NULL , 0 , " Unknown data " , HFILL } } ,
} ;
static hf_register_info hf_gtpv1 [ ] = {
{ & hf_gtpv1_flags , { " Flags " , " gtpv1.flags " , FT_UINT8 , BASE_HEX , NULL , 0 , " Ver/PT/Spare/E/S/PN " , HFILL } } ,
{ & hf_gtpv1_flags_ver , { " Version " , " gtpv1.flags.version " , FT_UINT8 , BASE_DEC , VALS ( ver_types ) , GTP_VER_MASK , " GTP Version " , HFILL } } ,
{ & hf_gtpv1_flags_pt , { " Protocol type " , " gtpv1.flags.payload_type " , FT_UINT8 , BASE_DEC , NULL , GTP_PT_MASK , " Protocol Type (1 = GTP, 0 = GPRS charging protocol : GTP' ) " , HFILL } } ,
{ & hf_gtpv1_flags_spare , { " Spare bit " , " gtpv1.flags.spare " , FT_UINT8 , BASE_DEC , NULL , GTPv1_SPARE_MASK , " Spare bit (shall be sent as 0) " , HFILL } } ,
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{ & hf_gtpv1_flags_e , { " Is Next Extension Header present? " , " gtpv1.flags.e " , FT_BOOLEAN , 8 , TFS ( & yes_no_tfs ) , GTPv1_E_MASK , " Is Next Extension Header present? (1 = yes, 0 = no) " , HFILL } } ,
{ & hf_gtpv1_flags_s , { " Is Sequence Number present? " , " gtpv1.flags.s " , FT_BOOLEAN , 8 , TFS ( & yes_no_tfs ) , GTPv1_S_MASK , " Is Sequence Number present? (1 = yes, 0 = no) " , HFILL } } ,
{ & hf_gtpv1_flags_pn , { " Is N-PDU number present? " , " gtpv1.flags.pn " , FT_BOOLEAN , 8 , TFS ( & yes_no_tfs ) , GTPv1_PN_MASK , " Is N-PDU number present? (1 = yes, 0 = no) " , HFILL } } ,
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{ & hf_gtpv1_message_type , { " Message Type " , " gtpv1.message " , FT_UINT8 , BASE_HEX , VALS ( message_type ) , 0x0 , " GTP Message Type " , HFILL } } ,
{ & hf_gtpv1_length , { " Length " , " gtpv1.length " , FT_UINT16 , BASE_DEC , NULL , 0 , " Length (i.e. number of octets after TID or TEID) " , HFILL } } ,
{ & hf_gtpv1_seq_number , { " Sequence Number " , " gtpv1.seq_number " , FT_UINT16 , BASE_HEX , NULL , 0 , " Sequence Number " , HFILL } } ,
{ & hf_gtpv1_teid , { " TEID " , " gtpv1.teid " , FT_UINT32 , BASE_HEX , NULL , 0 , " Tunnel Endpoint Identifier " , HFILL } } ,
{ & hf_gtpv1_npdu_number , { " N-PDU Number " , " gtpv1.npdu_number " , FT_UINT8 , BASE_HEX , NULL , 0 , " N-PDU Number " , HFILL } } ,
{ & hf_gtpv1_next , { " Next extension header type " , " gtpv1.next " , FT_UINT8 , BASE_HEX , NULL , 0 , " Next Extension Header Type " , HFILL } } ,
{ & hf_gtpv1_cause , { " Cause " , " gtpv1.cause " , FT_UINT8 , BASE_DEC , VALS ( cause_type ) , 0 , " Cause of operation " , HFILL } } ,
{ & hf_gtpv1_imsi , { " IMSI " , " gtpv1.imsi " , FT_STRING , BASE_DEC , NULL , 0 , " International Mobile Subscriber Identity number " , HFILL } } ,
{ & hf_gtpv1_rai_mcc , { " MCC " , " gtpv1.mcc " , FT_UINT16 , BASE_DEC , NULL , 0 , " Mobile Country Code " , HFILL } } ,
{ & hf_gtpv1_rai_mnc , { " MNC " , " gtpv1.mnc " , FT_UINT8 , BASE_DEC , NULL , 0 , " Mobile Network Code " , HFILL } } ,
{ & hf_gtpv1_rai_rac , { " RAC " , " gtpv1.rac " , FT_UINT8 , BASE_DEC , NULL , 0 , " Routing Area Code " , HFILL } } ,
{ & hf_gtpv1_rai_lac , { " LAC " , " gtpv1.lac " , FT_UINT16 , BASE_DEC , NULL , 0 , " Location Area Code " , HFILL } } ,
{ & hf_gtpv1_tlli , { " TLLI " , " gtpv1.tlli " , FT_UINT32 , BASE_HEX , NULL , 0 , " Temporary Logical Link Identity " , HFILL } } ,
{ & hf_gtpv1_ptmsi , { " P-TMSI " , " gtpv1.ptmsi " , FT_UINT32 , BASE_HEX , NULL , 0 , " Packet-Temporary Mobile Subscriber Identity " , HFILL } } ,
{ & hf_gtpv1_qos_spare1 , { " Spare " , " gtpv1.qos_spare1 " , FT_UINT8 , BASE_DEC , NULL , GTP_EXT_QOS_SPARE1_MASK , " Spare (shall be sent as '00' ) " , HFILL } } ,
{ & hf_gtpv1_qos_delay , { " QoS Delay " , " gtpv1.qos_delay " , FT_UINT8 , BASE_DEC , VALS ( qos_delay_type ) , GTP_EXT_QOS_DELAY_MASK , " Quality of Service Delay Class " , HFILL } } ,
{ & hf_gtpv1_qos_reliability , { " QoS Reliability " , " gtpv1.qos_reliabilty " , FT_UINT8 , BASE_DEC , VALS ( qos_reliability_type ) , GTP_EXT_QOS_RELIABILITY_MASK , " Quality of Service Reliability Class " , HFILL } } ,
{ & hf_gtpv1_qos_peak , { " QoS Peak " , " gtpv1.qos_peak " , FT_UINT8 , BASE_DEC , VALS ( qos_peak_type ) , GTP_EXT_QOS_PEAK_MASK , " Quality of Service Peak Throughput " , HFILL } } ,
{ & hf_gtpv1_qos_spare2 , { " Spare " , " gtpv1.qos_spare2 " , FT_UINT8 , BASE_DEC , NULL , GTP_EXT_QOS_SPARE2_MASK , " Spare (shall be sent as 0) " , HFILL } } ,
{ & hf_gtpv1_qos_precedence , { " QoS Precedence " , " gtpv1.qos_precedence " , FT_UINT8 , BASE_DEC , VALS ( qos_precedence_type ) , GTP_EXT_QOS_PRECEDENCE_MASK , " Quality of Service Precedence Class " , HFILL } } ,
{ & hf_gtpv1_qos_spare3 , { " Spare " , " gtpv1.qos_spare3 " , FT_UINT8 , BASE_DEC , NULL , GTP_EXT_QOS_SPARE3_MASK , " Spare (shall be sent as '000' ) " , HFILL } } ,
{ & hf_gtpv1_qos_mean , { " QoS Mean " , " gtpv1.qos_mean " , FT_UINT8 , BASE_DEC , VALS ( qos_mean_type ) , GTP_EXT_QOS_MEAN_MASK , " Quality of Service Mean Throughput " , HFILL } } ,
{ & hf_gtpv1_reorder , { " Reordering required " , " gtpv1.reorder " , FT_BOOLEAN , BASE_NONE , NULL , 0 , " Reordering required " , HFILL } } ,
{ & hf_gtpv1_map_cause , { " MAP cause " , " gtpv1.map_cause " , FT_UINT8 , BASE_DEC , VALS ( map_cause_type ) , 0 , " MAP cause " , HFILL } } ,
{ & hf_gtpv1_ptmsi_sig , { " P-TMSI Signature " , " gtpv1.ptmsi_sig " , FT_UINT24 , BASE_HEX , NULL , 0 , " P-TMSI Signature " , HFILL } } ,
{ & hf_gtpv1_ms_valid , { " MS validated " , " gtpv1.ms_valid " , FT_BOOLEAN , BASE_NONE , NULL , 0 , " MS validated " , HFILL } } ,
{ & hf_gtpv1_recovery , { " Recovery " , " gtpv1.recovery " , FT_UINT8 , BASE_DEC , NULL , 0 , " Restart counter " , HFILL } } ,
{ & hf_gtpv1_sel_mode , { " Selection Mode " , " gtpv1.sel_mode " , FT_UINT8 , BASE_DEC , VALS ( sel_mode_type ) , 0 , " Selection Mode " , HFILL } } ,
{ & hf_gtpv1_teid_data , { " TEID Data I " , " gtpv1.teid_data " , FT_UINT32 , BASE_HEX , NULL , 0 , " Tunnel Endpoint Identifier Data I " , HFILL } } ,
{ & hf_gtpv1_teid_cp , { " TEID Control Plane " , " gtpv1.teid_cp " , FT_UINT32 , BASE_HEX , NULL , 0 , " Tunnel Endpoint Identifier Control Plane " , HFILL } } ,
{ & hf_gtpv1_nsapi , { " NSAPI " , " gtpv1.nsapi " , FT_UINT8 , BASE_DEC , NULL , 0 , " Network layer Service Access Point Identifier " , HFILL } } ,
{ & hf_gtpv1_teid_ii , { " TEID Data II " , " gtpv1.teid_ii " , FT_UINT32 , BASE_HEX , NULL , 0 , " Tunnel Endpoint Identifier Data II " , HFILL } } ,
{ & hf_gtpv1_tear_ind , { " Teardown indication " , " gtpv1.tear_ind " , FT_BOOLEAN , BASE_NONE , NULL , 0 , " Teardown Indication " , HFILL } } ,
{ & hf_gtpv1_ranap_cause , { " RANAP cause " , " gtpv1.ranap_cause " , FT_UINT8 , BASE_DEC , VALS ( ranap_cause_type ) , 0 , " RANAP cause " , HFILL } } ,
{ & hf_gtpv1_rab_gtpu_dn , { " Downlink GTP-U seq number " , " gtpv1.rab_gtp_dn " , FT_UINT16 , BASE_DEC , NULL , 0 , " Downlink GTP-U sequence number " , HFILL } } ,
{ & hf_gtpv1_rab_gtpu_up , { " Uplink GTP-U seq number " , " gtpv1.rab_gtp_up " , FT_UINT16 , BASE_DEC , NULL , 0 , " Uplink GTP-U sequence number " , HFILL } } ,
{ & hf_gtpv1_rab_pdu_dn , { " Downlink next PDCP-PDU seq number " , " gtpv1.rab_pdu_dn " , FT_UINT8 , BASE_DEC , NULL , 0 , " Downlink next PDCP-PDU sequence number " , HFILL } } ,
{ & hf_gtpv1_rab_pdu_up , { " Uplink next PDCP-PDU seq number " , " gtpv1.rab_pdu_up " , FT_UINT8 , BASE_DEC , NULL , 0 , " Uplink next PDCP-PDU sequence number " , HFILL } } ,
{ & hf_gtpv1_rp_sms , { " Radio Priority SMS " , " gtpv1.rp_sms " , FT_UINT8 , BASE_DEC , NULL , 0 , " Radio Priority for MO SMS " , HFILL } } ,
{ & hf_gtpv1_rp_nsapi , { " NSAPI in Radio Priority " , " gtpv1.rp_nsapi " , FT_UINT8 , BASE_DEC , NULL , GTPv1_EXT_RP_NSAPI_MASK , " Network layer Service Access Point Identifier in Radio Priority " , HFILL } } ,
{ & hf_gtpv1_rp_spare , { " Reserved " , " gtpv1.rp_spare " , FT_UINT8 , BASE_DEC , NULL , GTPv1_EXT_RP_SPARE_MASK , " Spare bit " , HFILL } } ,
{ & hf_gtpv1_rp , { " Radio Priority " , " gtpv1.rp " , FT_UINT8 , BASE_DEC , NULL , GTPv1_EXT_RP_MASK , " Radio Priority for uplink tx " , HFILL } } ,
{ & hf_gtpv1_pkt_flow_id , { " Packet Flow ID " , " gtpv1.pkt_flow_id " , FT_UINT8 , BASE_DEC , NULL , 0 , " Packet Flow ID " , HFILL } } ,
{ & hf_gtpv1_chrg_char_s , { " Spare " , " gtpv1.chrg_char_s " , FT_UINT8 , BASE_DEC , NULL , GTP_MASK_CHRG_CHAR_S , " Spare " , HFILL } } ,
{ & hf_gtpv1_chrg_char_n , { " Normal charging " , " gtpv1.chrg_char_n " , FT_UINT8 , BASE_DEC , NULL , GTP_MASK_CHRG_CHAR_N , " Normal charging " , HFILL } } ,
{ & hf_gtpv1_chrg_char_p , { " Prepaid charging " , " gtpv1.chrg_char_p " , FT_UINT8 , BASE_DEC , NULL , GTP_MASK_CHRG_CHAR_P , " Prepaid charging " , HFILL } } ,
{ & hf_gtpv1_chrg_char_f , { " Flat rate charging " , " gtpv1.chrg_char_f " , FT_UINT8 , BASE_DEC , NULL , GTP_MASK_CHRG_CHAR_F , " Flat rate charging " , HFILL } } ,
{ & hf_gtpv1_chrg_char_h , { " Hot billing charging " , " gtpv1.chrg_char_h " , FT_UINT8 , BASE_DEC , NULL , GTP_MASK_CHRG_CHAR_H , " Hot billing charging " , HFILL } } ,
{ & hf_gtpv1_chrg_char_r , { " Reserved " , " gtpv1.chrg_char_r " , FT_UINT8 , BASE_DEC , NULL , GTP_MASK_CHRG_CHAR_R , " Reserved " , HFILL } } ,
{ & hf_gtpv1_trace_ref , { " Trace reference " , " gtpv1.trace_ref " , FT_UINT16 , BASE_HEX , NULL , 0 , " Trace reference " , HFILL } } ,
{ & hf_gtpv1_trace_type , { " Trace type " , " gtpv1.trace_type " , FT_UINT16 , BASE_HEX , NULL , 0 , " Trace type " , HFILL } } ,
{ & hf_gtpv1_ms_reason , { " MS not reachable reason " , " gtpv1.ms_reason " , FT_UINT8 , BASE_DEC , VALS ( ms_not_reachable_type ) , 0 , " MS not reachable reason " , HFILL } } ,
{ & hf_gtpv1_tr_comm , { " Packet transfer command " , " gtpv1.tr_comm " , FT_UINT8 , BASE_DEC , VALS ( tr_comm_type ) , 0 , " Packat transfer command " , HFILL } } ,
{ & hf_gtpv1_chrg_id , { " Charging ID " , " gtpv1.chrg_id " , FT_UINT32 , BASE_HEX , NULL , 0 , " Charging ID " , HFILL } } ,
{ & hf_gtpv1_user_ipv4 , { " End user address IPv4 " , " gtpv1.user_ipv4 " , FT_IPv4 , BASE_DEC , NULL , 0 , " End user address IPv4 " , HFILL } } ,
{ & hf_gtpv1_user_ipv6 , { " End user address IPv6 " , " gtpv1.user_ipv6 " , FT_IPv6 , BASE_HEX , NULL , 0 , " End user address IPv6 " , HFILL } } ,
{ & hf_gtpv1_user_addr_pdp_org , { " PDP type organization " , " gtpv1.user_addr_pdp_org " , FT_UINT8 , BASE_DEC , VALS ( pdp_org_type ) , 0 , " PDP type organization " , HFILL } } ,
{ & hf_gtpv1_user_addr_pdp_type , { " PDP type number " , " gtpv1.user_addr_pdp_type " , FT_UINT8 , BASE_HEX , VALS ( pdp_type ) , 0 , " PDP type " , HFILL } } ,
{ & hf_gtpv1_apn , { " APN " , " gtpv1.apn " , FT_STRING , BASE_DEC , NULL , 0 , " Access Point Name " , HFILL } } ,
{ & hf_gtpv1_gsn_addr_type , { " GSN Address Type " , " gtpv1.gsn_addr_type " , FT_UINT8 , BASE_DEC , VALS ( gsn_addr_type ) , GTP_EXT_GSN_ADDR_TYPE_MASK , " GSN Address Type " , HFILL } } ,
{ & hf_gtpv1_gsn_addr_len , { " GSN Address Length " , " gtpv1.gsn_addr_len " , FT_UINT8 , BASE_DEC , NULL , GTP_EXT_GSN_ADDR_LEN_MASK , " GSN Address Length " , HFILL } } ,
{ & hf_gtpv1_gsn_ipv4 , { " GSN address IPv4 " , " gtpv1.gsn_ipv4 " , FT_IPv4 , BASE_DEC , NULL , 0 , " GSN address IPv4 " , HFILL } } ,
{ & hf_gtpv1_gsn_ipv6 , { " GSN address IPv6 " , " gtpv1.gsn_ipv6 " , FT_IPv6 , BASE_DEC , NULL , 0 , " GSN address IPv6 " , HFILL } } ,
{ & hf_gtpv1_msisdn , { " MSISDN " , " gtpv1.msisdn " , FT_STRING , BASE_DEC , NULL , 0 , " MS international PSTN/ISDN number " , HFILL } } ,
{ & hf_gtpv1_qos_al_ret_priority , { " Allocation/Retention priority " , " gtpv1.qos_al_ret_priority " , FT_UINT8 , BASE_DEC , NULL , 0 , " Allocation/Retention Priority " , HFILL } } ,
{ & hf_gtpv1_qos_traf_class , { " Traffic class " , " gtpv1.qos_traf_class " , FT_UINT8 , BASE_DEC , VALS ( qos_traf_class ) , GTP_EXT_QOS_TRAF_CLASS_MASK , " Traffic Class " , HFILL } } ,
{ & hf_gtpv1_qos_del_order , { " Delivery order " , " gtpv1.qos_del_order " , FT_UINT8 , BASE_DEC , VALS ( qos_del_order ) , GTP_EXT_QOS_DEL_ORDER_MASK , " Delivery Order " , HFILL } } ,
{ & hf_gtpv1_qos_del_err_sdu , { " Delivery of erroneous SDU " , " gtpv1.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_gtpv1_qos_max_sdu_size , { " Maximum SDU size " , " gtpv1.qos_max_sdu_size " , FT_UINT8 , BASE_DEC , VALS ( qos_max_sdu_size ) , 0 , " Maximum SDU size " , HFILL } } ,
{ & hf_gtpv1_qos_max_ul , { " Maximum bit rate for uplink " , " gtpv1.qos_max_ul " , FT_UINT8 , BASE_DEC , VALS ( qos_max_ul ) , 0 , " Maximum bit rate for uplink " , HFILL } } ,
{ & hf_gtpv1_qos_max_dl , { " Maximum bit rate for downlink " , " gtpv1.qos_max_dl " , FT_UINT8 , BASE_DEC , VALS ( qos_max_dl ) , 0 , " Maximum bit rate for downlink " , HFILL } } ,
{ & hf_gtpv1_qos_res_ber , { " Residual BER " , " gtpv1.qos_res_ber " , FT_UINT8 , BASE_DEC , VALS ( qos_res_ber ) , GTP_EXT_QOS_RES_BER_MASK , " Residual Bit Error Rate " , HFILL } } ,
{ & hf_gtpv1_qos_sdu_err_ratio , { " SDU Error ratio " , " gtpv1.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_gtpv1_qos_trans_delay , { " Transfer delay " , " gtpv1.qos_trans_delay " , FT_UINT8 , BASE_DEC , VALS ( qos_trans_delay ) , GTP_EXT_QOS_TRANS_DELAY_MASK , " Transfer Delay " , HFILL } } ,
{ & hf_gtpv1_qos_traf_handl_prio , { " Traffic handling priority " , " gtpv1.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_gtpv1_qos_guar_ul , { " Guaranteed bit rate for uplink " , " gtpv1.qos_guar_ul " , FT_UINT8 , BASE_DEC , VALS ( qos_guar_ul ) , 0 , " Guaranteed bit rate for uplink " , HFILL } } ,
{ & hf_gtpv1_qos_guar_dl , { " Guaranteed bit rate for downlink " , " gtpv1.qos_guar_dl " , FT_UINT8 , BASE_DEC , VALS ( qos_guar_dl ) , 0 , " Guaranteed bit rate for downlink " , HFILL } } ,
{ & hf_gtpv1_rnc_ipv4 , { " RNC address IPv4 " , " gtpv1.rnc_ipv4 " , FT_IPv4 , BASE_DEC , NULL , 0 , " Radio Network Controller address IPv4 " , HFILL } } ,
{ & hf_gtpv1_rnc_ipv6 , { " RNC address IPv6 " , " gtpv1.rnc_ipv6 " , FT_IPv6 , BASE_HEX , NULL , 0 , " Radio Network Controller address IPv6 " , HFILL } } ,
{ & hf_gtpv1_chrg_ipv4 , { " CG address IPv4 " , " gtpv1.chrg_ipv4 " , FT_IPv4 , BASE_DEC , NULL , 0 , " Charging Gateway address IPv4 " , HFILL } } ,
{ & hf_gtpv1_chrg_ipv6 , { " CG address IPv6 " , " gtpv1.chrg_ipv6 " , FT_IPv6 , BASE_HEX , NULL , 0 , " Charging Gateway address IPv6 " , HFILL } } ,
{ & hf_gtpv1_node_ipv4 , { " Node address IPv4 " , " gtpv1.node_ipv4 " , FT_IPv4 , BASE_DEC , NULL , 0 , " Recommended node address IPv4 " , HFILL } } ,
{ & hf_gtpv1_node_ipv6 , { " Node address IPv6 " , " gtpv1.node_ipv6 " , FT_IPv6 , BASE_HEX , NULL , 0 , " Recommended node address IPv6 " , HFILL } } ,
{ & hf_gtpv1_ext_id , { " Extensio Identifier " , " gtpv1.ext_id " , FT_UINT16 , BASE_DEC , NULL , 0 , " Extension Identifier " , HFILL } } ,
{ & hf_gtpv1_ext_val , { " Extension Value " , " gtpv1.ext_val " , FT_STRING , BASE_DEC , NULL , 0 , " Extension Value " , HFILL } } ,
{ & hf_gtpv1_unknown , { " Unknown data (length) " , " gtpv1.unknown " , FT_UINT16 , BASE_DEC , NULL , 0 , " Unknown data " , HFILL } } ,
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} ;
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static gint * ett_gtp_array [ ] = {
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& ett_gtp ,
& ett_gtp_flags ,
& ett_gtp_ext ,
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& 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_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 ,
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} ;
module_t * gtp_module ;
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static enum_val_t gtpv0_cdr_options [ ] = {
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{ " GSM 12.15 " , 0 } ,
{ " Nokia CDR " , 1 } ,
{ " None " , 2 } ,
{ NULL , - 1 }
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} ;
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proto_gtpv0 = proto_register_protocol ( " GPRS Tunnelling Protocol v0 " , " GTPv0 " , " gtpv0 " ) ;
proto_register_field_array ( proto_gtpv0 , hf_gtpv0 , array_length ( hf_gtpv0 ) ) ;
proto_register_subtree_array ( ett_gtp_array , array_length ( ett_gtp_array ) ) ;
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proto_gtpv1 = proto_register_protocol ( " GPRS Tunnelling Protocol v1 " , " GTPv1 " , " gtpv1 " ) ;
proto_register_field_array ( proto_gtpv1 , hf_gtpv1 , array_length ( hf_gtpv1 ) ) ;
proto_register_subtree_array ( ett_gtp_array , array_length ( ett_gtp_array ) ) ;
gtp_module = prefs_register_protocol ( proto_gtpv0 , proto_reg_handoff_gtp ) ;
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prefs_register_uint_preference ( gtp_module , " gtpv0_port " , " GTPv0 port " , " GTPv0 port (default 3386) " , 10 , & g_gtpv0_port ) ;
prefs_register_uint_preference ( gtp_module , " gtpv1c_port " , " GTPv1 control plane (GTP-C) port " , " GTPv1 control plane port (default 2123) " , 10 , & g_gtpv1c_port ) ;
prefs_register_uint_preference ( gtp_module , " gtpv1u_port " , " GTPv1 user plane (GTP-U) port " , " GTPv1 user plane port (default 2152) " , 10 , & g_gtpv1u_port ) ;
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prefs_register_bool_preference ( gtp_module , " gtp_dissect_tpdu " , " Dissect T-PDU " , " Dissect T-PDU " , & gtp_tpdu ) ;
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prefs_register_enum_preference ( gtp_module , " gtpv0_dissect_cdr_as " , " Dissect GTP'v0 CDRs as " , " Dissect GTP'v0 CDRs as " , & gtpv0_cdr_as , gtpv0_cdr_options , FALSE ) ;
prefs_register_bool_preference ( gtp_module , " gtpv0_check_etsi " , " Compare GTPv0 order with ETSI " , " GTPv0 ETSI order " , & gtpv0_etsi_order ) ;
prefs_register_bool_preference ( gtp_module , " gtpv1_check_etsi " , " Compare GTPv1 order with ETSI " , " GTPv1 ETSI order " , & gtpv1_etsi_order ) ;
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prefs_register_bool_preference ( gtp_module , " ppp_reorder " , " Reorder & dissect PPP in Protocol conf. options " , " PPP reorder & dissect " , & ppp_reorder ) ;
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register_dissector ( " gtpv0 " , dissect_gtpv0 , proto_gtpv0 ) ;
register_dissector ( " gtpv1 " , dissect_gtpv1 , proto_gtpv1 ) ;
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}
void
proto_reg_handoff_gtp ( void )
{
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static int Initialized = FALSE ;
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static dissector_handle_t gtpv0_handle ;
static dissector_handle_t gtpv1_handle ;
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if ( ! Initialized ) {
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gtpv0_handle = find_dissector ( " gtpv0 " ) ;
gtpv1_handle = find_dissector ( " gtpv1 " ) ;
Initialized = TRUE ;
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} else {
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dissector_delete ( " udp.port " , gtpv0_port , gtpv0_handle ) ;
dissector_delete ( " tcp.port " , gtpv0_port , gtpv0_handle ) ;
dissector_delete ( " udp.port " , gtpv1c_port , gtpv1_handle ) ;
dissector_delete ( " tcp.port " , gtpv1c_port , gtpv1_handle ) ;
dissector_delete ( " udp.port " , gtpv1u_port , gtpv1_handle ) ;
dissector_delete ( " tcp.port " , gtpv1u_port , gtpv1_handle ) ;
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}
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gtpv0_port = g_gtpv0_port ;
gtpv1c_port = g_gtpv1c_port ;
gtpv1u_port = g_gtpv1u_port ;
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/* GTP v0 */
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dissector_add ( " udp.port " , g_gtpv0_port , gtpv0_handle ) ;
dissector_add ( " tcp.port " , g_gtpv0_port , gtpv0_handle ) ;
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/* GTP v1 */
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dissector_add ( " udp.port " , g_gtpv1c_port , gtpv1_handle ) ;
dissector_add ( " tcp.port " , g_gtpv1c_port , gtpv1_handle ) ;
dissector_add ( " udp.port " , g_gtpv1u_port , gtpv1_handle ) ;
dissector_add ( " tcp.port " , g_gtpv1u_port , gtpv1_handle ) ;
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ip_handle = find_dissector ( " ip " ) ;
ppp_handle = find_dissector ( " ppp " ) ;
}