2009-02-10 21:57:56 +00:00
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/* packet-gtpv2.c
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*
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* Routines for GTPv2 dissection
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* Copyright 2009, Anders Broman <anders.broman [at] ericcsson.com>
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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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
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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2009-02-13 06:10:57 +00:00
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* Ref: 3GPP TS 29.274 version 8.0.0 Release 8, ETSI TS 129 274 V8.0.0 (2009-01)
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2009-02-10 21:57:56 +00:00
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <glib.h>
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#include <epan/packet.h>
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2009-02-11 19:48:21 +00:00
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#include <epan/asn1.h>
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2009-02-16 21:21:11 +00:00
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#include "packet-gsm_a_common.h"
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2009-02-11 19:48:21 +00:00
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#include "packet-gsm_map.h"
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2009-02-13 06:10:57 +00:00
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#include "packet-e212.h"
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2009-02-10 21:57:56 +00:00
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static int proto_gtpv2 = -1;
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static int hf_gtpv2_flags = -1;
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static int hf_gtpv2_version = -1;
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static int hf_gtpv2_t = -1;
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static int hf_gtpv2_message_type = -1;
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static int hf_gtpv2_msg_length = -1;
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static int hf_gtpv2_teid = -1;
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static int hf_gtpv2_seq = -1;
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static int hf_gtpv2_spare = -1;
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static int hf_gtpv2_ie = -1;
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static int hf_gtpv2_ie_len = -1;
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static int hf_gtpv2_cr = -1;
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static int hf_gtpv2_instance = -1;
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2009-02-11 19:48:21 +00:00
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static int hf_gtpv2_cause = -1;
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2009-02-16 21:21:11 +00:00
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static int hf_gtpv2_rec = -1;
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static int hf_gtpv2_apn = -1;
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static int hf_gtpv2_ebi = -1;
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static int hf_gtpv2_daf = -1;
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static int hf_gtpv2_dtf = -1;
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static int hf_gtpv2_hi = -1;
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static int hf_gtpv2_dfi = -1;
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static int hf_gtpv2_oi = -1;
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static int hf_gtpv2_isrsi = -1;
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static int hf_gtpv2_israi = -1;
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static int hf_gtpv2_sgwci = -1;
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static int hf_gtpv2_pt = -1;
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static int hf_gtpv2_tdi = -1;
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static int hf_gtpv2_si = -1;
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static int hf_gtpv2_msv = -1;
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2009-03-01 20:39:44 +00:00
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static int hf_gtpv2_pdn_type = -1;
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static int hf_gtpv2_pdn_ipv4 = -1;
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static int hf_gtpv2_pdn_ipv6_len = -1;
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static int hf_gtpv2_pdn_ipv6 = -1;
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2009-02-16 21:21:11 +00:00
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2009-02-13 06:10:57 +00:00
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static int hf_gtpv2_rat_type = -1;
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2009-03-01 20:39:44 +00:00
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static int hf_gtpv2_uli_ecgi_flg = -1;
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static int hf_gtpv2_uli_tai_flg = -1;
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static int hf_gtpv2_uli_rai_flg = -1;
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static int hf_gtpv2_uli_sai_flg = -1;
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static int hf_gtpv2_uli_cgi_flg = -1;
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2009-02-13 06:10:57 +00:00
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static int hf_gtpv2_cng_rep_act = -1;
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2009-02-10 21:57:56 +00:00
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static gint ett_gtpv2 = -1;
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static gint ett_gtpv2_flags = -1;
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static gint ett_gtpv2_ie = -1;
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static const value_string gtpv2_message_type_vals[] = {
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{0, "Reserved"},
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{1, "Echo Request"},
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{2, "Echo Response"},
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{4, "Version Not Supported Indication"},
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/* 4-24 Reserved for S101 interface TS 29.276 */
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/* 25-31 Reserved for Sv interface TS 29.280 */
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{32, "Create Session Request"},
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{33, "Create Session Response"},
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{34, "Update User Plane Request"},
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{35, "Update User Plane Response"},
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{36, "Modify Bearer Request"},
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{37, "Modify Bearer Response"},
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{38, "Delete Session Request"},
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{39, "Delete Session Response"},
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{40, "Change Notification Request"},
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{41, "Change Notification Response"},
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/* 42-63 For future use */
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/* Messages without explicit response */
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2009-03-04 19:51:55 +00:00
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{64, "Modify Bearer Command"}, /* (MME/SGSN to PGW -S11/S4, S5/S8) */
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{65, "Modify Bearer Failure Indication"}, /*(PGW to MME/SGSN -S5/S8, S11/S4) */
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{66, "Delete Bearer Command"}, /* (MME to PGW -S11, S5/S8) */
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{67, "Delete Bearer Failure Indication"}, /* (PGW to MME -S5/S8, S11) */
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{68, "Bearer Resource Command"}, /* (MME/SGSN to PGW -S11/S4, S5/S8) */
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{69, "Bearer Resource Failure Indication"}, /* (PGW to MME/SGSN -S5/S8, S11/S4) */
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{70, "Downlink Data Notification Failure Indication"}, /*(SGSN/MME to SGW -S4/S11) */
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2009-02-10 21:57:56 +00:00
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/* 71-94 For future use PDN-GW to SGSN/MME (S5/S8, S4/S11) */
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{95, "Create Bearer Request "},
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{96, "Create Bearer Response "},
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{97, "Update Bearer Request "},
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{98, "Update Bearer Response "},
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{99, "Delete Bearer Request "},
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{100, "Delete Bearer Response "},
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/* 101-127 For future use MME to MME, SGSN to MME, MME to SGSN, SGSN to SGSN (S3/10/S16) */
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{128, "Identification Request "},
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{129, "Identification Response "},
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{130, "Context Request "},
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{131, "Context Response "},
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{132, "Context Acknowledge "},
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{133, "Forward Relocation Request "},
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{134, "Forward Relocation Response "},
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{135, "Forward Relocation Complete Notification "},
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{136, "Forward Relocation Complete Acknowledge "},
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{137, "Forward SRNS Context Notification "},
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{138, "Forward SRNS Context Acknowledge "},
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{139, "Relocation Cancel Request "},
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{140, "Relocation Cancel Response "},
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/* 141-148 For future use SGSN to MME, MME to SGSN (S3) */
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{149, "Detach Notification "},
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{150, "Detach Acknowledge "},
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{151, "CS Paging Indication "},
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/* 152-159 For future use */
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{160, "Create Forwarding Tunnel Request "},
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{161, "Create Forwarding Tunnel Response "},
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{162, "Suspend Notification "},
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{163, "Suspend Acknowledge "},
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{164, "Resume Notification "},
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{165, "Resume Acknowledge "},
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{166, "Create Indirect Data Forwarding Tunnel Request "},
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{167, "Create Indirect Data Forwarding Tunnel Response "},
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/* 168-175 For future use SGW to SGSN/MME (S4/S11) */
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{176, "Downlink Data Notification "},
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{177, "Downlink Data Notification Acknowledgement "},
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{178, "Update Bearer Complete "},
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/* 179-191 For future use */
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/* Other */
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/* 192-244 For future use */
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/* 245-255 Reserved for GTP-U TS 29.281 [13] */
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{0, NULL}
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};
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2009-02-13 06:10:57 +00:00
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#define GTPV2_IE_RESERVED 0
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#define GTPV2_IE_IMSI 1
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#define GTPV2_IE_CAUSE 2
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2009-02-16 21:21:11 +00:00
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#define GTPV2_REC_REST_CNT 3
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#define GTPV2_APN 71
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#define GTPV2_EBI 73
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2009-02-13 06:10:57 +00:00
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#define GTPV2_IE_MSISDN 76
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2009-02-16 21:21:11 +00:00
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#define GTPV2_INDICATION 77
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#define GTPV2_PCO 78
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2009-03-01 20:39:44 +00:00
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#define GTPV2_PAA 79
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#define GTPV2_BEARER_QOS 80
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#define GTPV2_FLOW_QOS 81
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2009-02-13 06:10:57 +00:00
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#define GTPV2_IE_RAT_TYPE 82
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#define GTPV2_IE_SERV_NET 83
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2009-03-01 20:39:44 +00:00
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#define GTPV2_TEID 84
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#define GTPV2_ULI 87
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#define GTPV2_F_TEID 88
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#define GTPV2_G_CN_ID 90
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2009-02-13 06:10:57 +00:00
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#define GTPV2_IE_CNG_REP_ACT 139
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2009-02-11 19:48:21 +00:00
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2009-02-10 21:57:56 +00:00
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/* Table 8.1-1: Information Element types for GTPv2 */
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static const value_string gtpv2_element_type_vals[] = {
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{0, "Reserved"},
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2009-02-11 19:48:21 +00:00
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{1, "International Mobile Subscriber Identity (IMSI)"}, /* Extendable / 8.3 */
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{2, "Cause (without embedded offending IE)"}, /* Extendable / 8.4 */
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{3, "Recovery (Restart Counter)"}, /* Extendable / 8.5 */
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2009-02-10 21:57:56 +00:00
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/* 4-50 Reserved for S101 interface Extendable / See 3GPP TS 29.276 [14] */
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/* 51-70 Reserved for Sv interface Extendable / See 3GPP TS 29.280 [15] */
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2009-02-11 19:48:21 +00:00
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{71, "Access Point Name (APN)"}, /* Extendable / 8.6 */
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{72, "Aggregate Maximum Bit Rate (AMBR)"}, /* Extendable / 8.7 */
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{73, "EPS Bearer ID (EBI)"}, /* Extendable / 8.8 */
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{74, "IP Address"}, /* Extendable / 8.9 */
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{75, "Mobile Equipment Identity (MEI)"}, /* Extendable / 8.10 */
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{76, "MSISDN"}, /* Extendable / 8.11 */
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{77, "Indication"}, /* Extendable / 8.12 */
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{78, "Protocol Configuration Options (PCO)"}, /* Extendable / 8.13 */
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{79, "PDN Address Allocation (PAA)"}, /* Extendable / 8.14 */
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{80, "Bearer Level Quality of Service (Bearer QoS)"}, /* Extendable / 8.15 */
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{81, "Flow Quality of Service (Flow QoS)"}, /* Extendable / 8.16 */
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{82, "RAT Type"}, /* Extendable / 8.17 */
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{83, "Serving Network"}, /* Extendable / 8.18 */
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{84, "TEID-C"}, /* Extendable / 8.19 */
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/* TEID-U Extendable / 8.19a */
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/* TEID-U with EPS Bearer ID Extendable / 8.19b */
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{85, "EPS Bearer Level Traffic Flow Template (Bearer TFT)"}, /* Extendable / 8.20 */
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{86, "Traffic Aggregation Description (TAD)"}, /* Extendable / 8.21 */
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{87, "User Location Info (ULI)"}, /* Extendable / 8.22 */
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{88, "Fully Qualified Tunnel Endpoint Identifier (F-TEID)"}, /* Extendable / 8.23 */
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{89, "TMSI"}, /* Extendable / 8.24 */
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{90, "Global CN-Id"}, /* Extendable / 8.25 */
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{91, "Legacy Quality of Service (Legacy QoS)"}, /* Extendable / 8.26 */
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{92, "S103 PDN Data Forwarding Info (S103PDF)"}, /* Extendable / 8.27 */
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{93, "S1-U Data Forwarding Info (S1UDF)"}, /* Extendable / 8.28 */
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{94, "Delay Value"}, /* Extendable / 8.29 */
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{95, "Bearer ID List"}, /* Extendable / 8.30 */
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{96, "Bearer Context"}, /* Extendable / 8.31 */
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{97, "S101-IP-Address"}, /* Extendable / 8.32 */
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{98, "S102-IP-Address"}, /* Extendable / 8.33 */
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{99, "Charging ID"}, /* Extendable / 8.34 */
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{100, "Charging Characteristics"}, /* Extendable / 8.35 */
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{101, "Trace Information"}, /* Extendable / 8.36 */
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{102, "Bearer Flags"}, /* Extendable / 8.37 */
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{103, "Paging Cause"}, /* Extendable / 8.38 */
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{104, "PDN Type"}, /* Extendable / 8.39 */
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{105, "Procedure Transaction ID"}, /* Extendable / 8.40 */
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{106, "DRX Parameter"}, /* Extendable / 8.41 */
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2009-02-10 21:57:56 +00:00
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{107, "UE Network Capability"}, /* Extendable / 8.42 */
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{108, "PDU Numbers"}, /* Extendable / 8.46 */
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{109, "MM Context (GSM Key and Triplets)"}, /* Extendable / 8.43 */
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{110, "MM Context (UMTS Key, Used Cipher and Quintuplets)"}, /* Extendable / 8.43 */
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{111, "MM Context (GSM Key, Used Cipher and Quintuplets)"}, /* Extendable / 8.43 */
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{112, "MM Context (UMTS Key and Quintuplets)"}, /* Extendable / 8.43 */
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{113, "MM Context (EPS Security Context, Quadruplets and Quintuplets)"}, /* Extendable / 8.43 */
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{114, "MM Context (UMTS Key, Quadruplets and Quintuplets)"}, /* Extendable / 8.43 */
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{115, "PDN Connection"}, /* Extendable / 8.44 */
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{116, "GRE Key"}, /* Extendable / 8.45 */
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{117, "Bearer Control Mode"}, /* Extendable / 8.68 */
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{118, "EPS Bearer Contexts Prioritization (Contexts Prioritization)"}, /* Extendable / 8.47 */
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{119, "LMA IP Address"}, /* Extendable / 8.48 */
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{120, "P-TMSI"}, /* Extendable / 8.49 */
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{121, "P-TMSI Signature"}, /* Extendable / 8.50 */
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{122, "Hop Counter"}, /* Extendable / 8.51 */
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{123, "Authentication Quintuplet"}, /* Extendable / 8.52 */
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{124, "Authentication Quadruplet"}, /* Extendable / 8.53 */
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{125, "Complete Request Message"}, /* Extendable / 8.54 */
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{126, "GUTI"}, /* Extendable / 8.55 */
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{127, "F-Container"}, /* Extendable / 8.56 */
|
|
|
|
|
{128, "F-Cause"}, /* Extendable / 8.57 */
|
|
|
|
|
{129, "Selected PLMN ID"}, /* Extendable / 8.58 */
|
|
|
|
|
{130, "Target Identification"}, /* Extendable / 8.59 */
|
|
|
|
|
{131, "Cell Identification"}, /* Extendable / 8.67 */
|
|
|
|
|
{132, "NSAPI"}, /* Extendable / 8.60 */
|
|
|
|
|
{133, "Packet Flow ID"}, /* Extendable / 8.61 */
|
|
|
|
|
{134, "RAB Context"}, /* Extendable / 8.62 */
|
|
|
|
|
{135, "Source RNC PDCP Context Info"}, /* Extendable / 8.63 */
|
|
|
|
|
{136, "UDP Source Port Number"}, /* Extendable / 8.64 */
|
|
|
|
|
{137, "APN Restriction"}, /* Extendable / 8.65 */
|
|
|
|
|
{138, "Selection Mode"}, /* Extendable / 8.66 */
|
|
|
|
|
{139, "Change Reporting Action"}, /* Extendable / 8.69 */
|
|
|
|
|
{140, "Cause including an embedded offending IE"}, /* Extendable / 8.4 */
|
|
|
|
|
{141, "PDN Connection Set Identifier (CSID)"}, /* Extendable / 8.70 */
|
2009-02-11 01:38:58 +00:00
|
|
|
/* 142-254 "Spare."}, */ /* For future use. FFS */
|
2009-02-10 21:57:56 +00:00
|
|
|
{255, "Private"}, /* Extension Extendable / 8.71 */
|
|
|
|
|
{0, NULL}
|
|
|
|
|
};
|
2009-02-11 19:48:21 +00:00
|
|
|
|
|
|
|
|
/* Code to dissect IE's */
|
|
|
|
|
|
|
|
|
|
static void
|
2009-02-13 06:10:57 +00:00
|
|
|
dissect_gtpv2_unknown(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 instance _U_)
|
2009-02-11 19:48:21 +00:00
|
|
|
{
|
|
|
|
|
|
2009-02-13 06:10:57 +00:00
|
|
|
proto_tree_add_text(tree, tvb, 0, length, "IE data not dissected yet");
|
2009-02-11 19:48:21 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* 8.3 International Mobile Subscriber Identity (IMSI)
|
|
|
|
|
*
|
|
|
|
|
* IMSI is defined in 3GPP TS 23.003
|
2009-03-04 19:51:55 +00:00
|
|
|
* Editor's note: IMSI coding will be defined in 3GPP TS 24.301
|
|
|
|
|
* Editor's note: In the first release of GTPv2 spec (TS 29.274v8.0.0) n = 8.
|
2009-02-11 19:48:21 +00:00
|
|
|
* That is, the overall length of the IE is 11 octets.
|
|
|
|
|
*/
|
|
|
|
|
static void
|
2009-02-13 06:10:57 +00:00
|
|
|
dissect_gtpv2_imsi(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 instance _U_)
|
2009-02-11 19:48:21 +00:00
|
|
|
{
|
2009-02-13 06:10:57 +00:00
|
|
|
proto_tree_add_text(tree, tvb, 0, length, "IE data not dissected yet");
|
2009-02-11 19:48:21 +00:00
|
|
|
|
|
|
|
|
}
|
|
|
|
|
/* Table 8.4-1: Cause values */
|
|
|
|
|
static const value_string gtpv2_cause_vals[] = {
|
|
|
|
|
{0, "Reserved"},
|
|
|
|
|
{1, "Paging Cause"},
|
|
|
|
|
{2, "Local Detach"},
|
|
|
|
|
{3, "Complete Detach"},
|
|
|
|
|
/* 4-15 Spare. This value range is reserved for Cause values in a request message */
|
|
|
|
|
{16, "Request accepted"},
|
|
|
|
|
{17, "Request accepted partially"},
|
|
|
|
|
{18, "New PDN type due to subscription limitation"},
|
|
|
|
|
{19, "New PDN type due to network preference"},
|
|
|
|
|
{20, "New PDN type due to single address bearer only"},
|
|
|
|
|
/* 21-63 Spare. This value range is reserved for Cause values in acceptance response message */
|
|
|
|
|
{64, "Context Non Existent/Found"},
|
|
|
|
|
{65, "Invalid Message Format"},
|
|
|
|
|
{66, "Version not supported by next peer"},
|
|
|
|
|
{67, "Invalid length"},
|
|
|
|
|
{68, "Service not supported"},
|
|
|
|
|
{69, "Mandatory IE incorrect"},
|
|
|
|
|
{70, "Mandatory IE missing"},
|
|
|
|
|
{71, "Optional IE incorrect"},
|
|
|
|
|
{72, "System failure"},
|
|
|
|
|
{73, "No resources available"},
|
|
|
|
|
{74, "Semantic error in the TFT operation"},
|
|
|
|
|
{75, "Syntactic error in the TFT operation"},
|
|
|
|
|
{76, "Semantic errors in packet filter(s)"},
|
|
|
|
|
{77, "Syntactic errors in packet filter(s)"},
|
|
|
|
|
{78, "Missing or unknown APN"},
|
|
|
|
|
{79, "Unexpected repeated IE"},
|
|
|
|
|
{80, "GRE key not found"},
|
|
|
|
|
{81, "Reallocation failure"},
|
|
|
|
|
{82, "Denied in RAT"},
|
|
|
|
|
{83, "Preferred PDN type not supported"},
|
|
|
|
|
{84, "All dynamic addresses are occupied"},
|
|
|
|
|
{85, "UE context without TFT already activated"},
|
|
|
|
|
{86, "Protocol type not supported"},
|
|
|
|
|
{87, "UE not responding"},
|
|
|
|
|
{88, "UE refuses"},
|
|
|
|
|
{89, "Service denied"},
|
|
|
|
|
{90, "Unable to page UE"},
|
|
|
|
|
{91, "No memory available"},
|
|
|
|
|
{92, "User authentication failed"},
|
2009-03-04 19:51:55 +00:00
|
|
|
{93, "APN access denied - no subscription"},
|
2009-02-11 19:48:21 +00:00
|
|
|
/* 94-255 Spare. This value range is reserved for Cause values in rejection response message */
|
|
|
|
|
{0, NULL}
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* 8.4 Cause
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
static void
|
2009-02-13 06:10:57 +00:00
|
|
|
dissect_gtpv2_cause(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 instance _U_)
|
2009-02-11 19:48:21 +00:00
|
|
|
{
|
2009-02-13 06:10:57 +00:00
|
|
|
int offset = 0;
|
2009-02-11 19:48:21 +00:00
|
|
|
/* Cause value octet 5 */
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_cause, tvb, offset, 1, FALSE);
|
|
|
|
|
if (length >1)
|
|
|
|
|
proto_tree_add_text(tree, tvb, offset, length, "IE data not dissected yet");
|
|
|
|
|
|
|
|
|
|
}
|
2009-02-13 06:10:57 +00:00
|
|
|
/*
|
|
|
|
|
* 8.5 Recovery (Restart Counter)
|
|
|
|
|
*/
|
2009-02-16 21:21:11 +00:00
|
|
|
static void
|
|
|
|
|
dissect_gtpv2_recovery(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 instance _U_)
|
|
|
|
|
{
|
|
|
|
|
int offset = 0;
|
|
|
|
|
/* */
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_rec, tvb, offset, 1, FALSE);
|
|
|
|
|
|
|
|
|
|
}
|
2009-02-13 06:10:57 +00:00
|
|
|
/*
|
|
|
|
|
* 8.6 Access Point Name (APN)
|
|
|
|
|
*/
|
2009-02-16 21:21:11 +00:00
|
|
|
static void
|
|
|
|
|
dissect_gtpv2_apn(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 instance _U_)
|
|
|
|
|
{
|
|
|
|
|
int offset = 0;
|
|
|
|
|
guint8 *apn = NULL;
|
|
|
|
|
int name_len, tmp;
|
|
|
|
|
|
|
|
|
|
if (length > 0) {
|
|
|
|
|
name_len = tvb_get_guint8(tvb, offset);
|
|
|
|
|
|
|
|
|
|
if (name_len < 0x20) {
|
|
|
|
|
apn = tvb_get_ephemeral_string(tvb, offset + 1, length - 1);
|
|
|
|
|
for (;;) {
|
|
|
|
|
if (name_len >= length - 1)
|
|
|
|
|
break;
|
|
|
|
|
tmp = name_len;
|
|
|
|
|
name_len = name_len + apn[tmp] + 1;
|
|
|
|
|
apn[tmp] = '.';
|
|
|
|
|
}
|
|
|
|
|
} else{
|
|
|
|
|
apn = tvb_get_ephemeral_string(tvb, offset, length);
|
|
|
|
|
}
|
|
|
|
|
proto_tree_add_string(tree, hf_gtpv2_apn, tvb, offset, length, apn);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
}
|
2009-02-13 06:10:57 +00:00
|
|
|
/*
|
|
|
|
|
* 8.7 Aggregate Maximum Bit Rate (AMBR)
|
|
|
|
|
*/
|
|
|
|
|
/*
|
|
|
|
|
* 8.8 EPS Bearer ID (EBI)
|
2009-02-16 21:21:11 +00:00
|
|
|
*/
|
|
|
|
|
static void
|
|
|
|
|
dissect_gtpv2_ebi(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 instance _U_)
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
int offset = 0;
|
|
|
|
|
/* Spare (all bits set to 0) B8 - B5*/
|
|
|
|
|
/* EPS Bearer ID (EBI) B4 - B1 */
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_ebi, tvb, offset, 1, FALSE);
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
/*
|
2009-02-13 06:10:57 +00:00
|
|
|
* 8.9 IP Address
|
|
|
|
|
* 8.10 Mobile Equipment Identity (MEI)
|
|
|
|
|
*/
|
2009-02-11 19:48:21 +00:00
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* 8.11 MSISDN
|
|
|
|
|
*
|
|
|
|
|
* MSISDN is defined in 3GPP TS 23.003
|
2009-03-04 19:51:55 +00:00
|
|
|
* Editor's note: MSISDN coding will be defined in TS 24.301.
|
2009-02-11 19:48:21 +00:00
|
|
|
*/
|
|
|
|
|
static void
|
2009-02-13 06:10:57 +00:00
|
|
|
dissect_gtpv2_msisdn(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 instance _U_)
|
2009-02-11 19:48:21 +00:00
|
|
|
{
|
|
|
|
|
dissect_gsm_map_msisdn(tvb, pinfo, tree);
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
2009-02-13 06:10:57 +00:00
|
|
|
/*
|
|
|
|
|
* 8.12 Indication
|
2009-02-16 21:21:11 +00:00
|
|
|
*/
|
|
|
|
|
static void
|
2009-02-16 22:32:06 +00:00
|
|
|
dissect_gtpv2_ind(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 instance _U_)
|
2009-02-16 21:21:11 +00:00
|
|
|
{
|
|
|
|
|
int offset = 0;
|
|
|
|
|
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_daf, tvb, offset, 1, FALSE);
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_dtf, tvb, offset, 1, FALSE);
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_hi, tvb, offset, 1, FALSE);
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_dfi, tvb, offset, 1, FALSE);
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_oi, tvb, offset, 1, FALSE);
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_isrsi, tvb, offset, 1, FALSE);
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_israi, tvb, offset, 1, FALSE);
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_sgwci, tvb, offset, 1, FALSE);
|
2009-03-01 20:39:44 +00:00
|
|
|
if(length==1){
|
|
|
|
|
proto_tree_add_text(tree, tvb, 0, length, "Older version?, should be 2 octets in 8.0.0");
|
|
|
|
|
return;
|
|
|
|
|
}
|
2009-02-16 21:21:11 +00:00
|
|
|
|
|
|
|
|
offset++;
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_pt, tvb, offset, 1, FALSE);
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_tdi, tvb, offset, 1, FALSE);
|
2009-03-01 20:39:44 +00:00
|
|
|
proto_tree_add_item(tree, hf_gtpv2_si, tvb, offset, 1, FALSE);
|
2009-02-16 21:21:11 +00:00
|
|
|
proto_tree_add_item(tree, hf_gtpv2_msv, tvb, offset, 1, FALSE);
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
/*
|
|
|
|
|
* 8.13 Protocol Configuration Options (PCO)
|
2009-03-04 19:51:55 +00:00
|
|
|
* Editor's note: PCO will be defined in 3GPP TS 23.003 and its coding in TS 24.301
|
2009-02-16 21:21:11 +00:00
|
|
|
* Dissected in packey-gsm_a_gm.c
|
|
|
|
|
*/
|
|
|
|
|
static void
|
|
|
|
|
dissect_gtpv2_pco(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 instance _U_)
|
|
|
|
|
{
|
|
|
|
|
de_sm_pco(tvb, tree, 0, length, NULL, 0);
|
|
|
|
|
}
|
|
|
|
|
/*
|
2009-03-01 20:39:44 +00:00
|
|
|
* 8.14 PDN Address Allocation (PAA)
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
static const value_string gtpv2_pdn_type_vals[] = {
|
|
|
|
|
{1, "IPv4"},
|
|
|
|
|
{2, "IPv6"},
|
|
|
|
|
{3, "IPv4/IPv6"},
|
|
|
|
|
{0, NULL}
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
dissect_gtpv2_paa(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 instance _U_)
|
|
|
|
|
{
|
|
|
|
|
int offset = 0;
|
|
|
|
|
guint8 pdn_type;
|
|
|
|
|
|
|
|
|
|
pdn_type = tvb_get_guint8(tvb, offset);
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_pdn_type, tvb, offset, 1, FALSE);
|
|
|
|
|
offset++;
|
|
|
|
|
|
|
|
|
|
switch(pdn_type){
|
|
|
|
|
case 1:
|
|
|
|
|
/* IPv4 */
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_pdn_ipv4, tvb, offset, 4, FALSE);
|
|
|
|
|
offset+=4;
|
|
|
|
|
break;
|
|
|
|
|
case 2:
|
|
|
|
|
/* IPv6*/
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_pdn_ipv6_len, tvb, offset, 1, FALSE);
|
|
|
|
|
offset++;
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_pdn_ipv6, tvb, offset, 16, FALSE);
|
|
|
|
|
offset+=16;
|
|
|
|
|
break;
|
|
|
|
|
case 3:
|
|
|
|
|
/* IPv4/IPv6 */
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_pdn_ipv6_len, tvb, offset, 1, FALSE);
|
|
|
|
|
offset++;
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_pdn_ipv6, tvb, offset, 16, FALSE);
|
|
|
|
|
offset+=16;
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_pdn_ipv4, tvb, offset, 4, FALSE);
|
|
|
|
|
offset+=4;
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
/*
|
2009-02-13 06:10:57 +00:00
|
|
|
* 8.15 Bearer Quality of Service (Bearer QoS)
|
2009-03-01 20:39:44 +00:00
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
dissect_gtpv2_bearer_qos(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 instance _U_)
|
|
|
|
|
{
|
|
|
|
|
proto_tree_add_text(tree, tvb, 0, length, "IE data not dissected yet");
|
|
|
|
|
}
|
|
|
|
|
/*
|
2009-02-13 06:10:57 +00:00
|
|
|
* 8.16 Flow Quality of Service (Flow QoS)
|
|
|
|
|
*/
|
2009-03-01 20:39:44 +00:00
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
dissect_gtpv2_flow_qos(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 instance _U_)
|
|
|
|
|
{
|
|
|
|
|
proto_tree_add_text(tree, tvb, 0, length, "IE data not dissected yet");
|
|
|
|
|
}
|
2009-02-13 06:10:57 +00:00
|
|
|
/*
|
|
|
|
|
* 8.17 RAT Type
|
|
|
|
|
*/
|
|
|
|
|
static const value_string gtpv2_rat_type_vals[] = {
|
|
|
|
|
{0, "Reserved"},
|
|
|
|
|
{1, "UTRAN"},
|
|
|
|
|
{2, "GERAN"},
|
|
|
|
|
{3, "WLAN"},
|
|
|
|
|
{4, "GAN"},
|
|
|
|
|
{5, "HSPA Evolution"},
|
|
|
|
|
{6, "EUTRAN"},
|
|
|
|
|
{0, NULL}
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static void
|
2009-02-13 06:30:27 +00:00
|
|
|
dissect_gtpv2_rat_type(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 instance _U_)
|
2009-02-13 06:10:57 +00:00
|
|
|
{
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_rat_type, tvb, 0, 1, FALSE);
|
|
|
|
|
}
|
|
|
|
|
/*
|
|
|
|
|
* 8.18 Serving Network
|
|
|
|
|
*/
|
|
|
|
|
static void
|
2009-02-13 06:30:27 +00:00
|
|
|
dissect_gtpv2_serv_net(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 instance _U_)
|
2009-02-13 06:10:57 +00:00
|
|
|
{
|
|
|
|
|
|
|
|
|
|
dissect_e212_mcc_mnc(tvb, tree, 0);
|
|
|
|
|
}
|
|
|
|
|
/*
|
2009-03-01 20:39:44 +00:00
|
|
|
* 8.19 Tunnel Endpoint Identifier for Control Plane (TEID-C)
|
|
|
|
|
*/
|
|
|
|
|
static void
|
|
|
|
|
dissect_gtpv2_teid(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 instance _U_)
|
|
|
|
|
{
|
|
|
|
|
proto_tree_add_text(tree, tvb, 0, length, "IE data not dissected yet");
|
|
|
|
|
}
|
|
|
|
|
/*
|
2009-02-13 06:10:57 +00:00
|
|
|
* 8.19a Tunnel Endpoint Identifier for User Plane (TEID-U)
|
|
|
|
|
* 8.19b Tunnel Endpoint Identifier for User Plane with EBI (TEID-U EBI)
|
|
|
|
|
* 8.20 EPS Bearer Level Traffic Flow Template (Bearer TFT)
|
|
|
|
|
* 8.21 Traffic Aggregate Description (TAD)
|
2009-03-01 20:39:44 +00:00
|
|
|
*/
|
|
|
|
|
/*
|
|
|
|
|
* 8.22 User Location Info (ULI)
|
|
|
|
|
*
|
|
|
|
|
* The flags ECGI, TAI, RAI, SAI and CGI in octed 5 indicate if the corresponding
|
|
|
|
|
* fields are present in the IE or not. If one of these flags is set to "0",
|
|
|
|
|
* the corresponding field is not present at all. The respective identities are defined in 3GPP
|
|
|
|
|
* TS 23.003 [2].
|
|
|
|
|
* Editor's Note: The definition of ECGI is missing in 3GPP TS 23.003 v8.1.0.
|
|
|
|
|
* It can be found in 3GPP TS 36.413 v8.3.0, but it is expected that it will be moved
|
|
|
|
|
* to 23.003 in a future version.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
dissect_gtpv2_uli(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 instance _U_)
|
|
|
|
|
{
|
|
|
|
|
int offset = 0;
|
|
|
|
|
guint flags;
|
|
|
|
|
|
|
|
|
|
flags = tvb_get_guint8(tvb,offset)&0x1f;
|
|
|
|
|
/* ECGI B5 */
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_uli_ecgi_flg, tvb, offset, 1, FALSE);
|
|
|
|
|
/* TAI B4 */
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_uli_tai_flg, tvb, offset, 1, FALSE);
|
|
|
|
|
/* RAI B3 */
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_uli_rai_flg, tvb, offset, 1, FALSE);
|
|
|
|
|
/* SAI B2 */
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_uli_sai_flg, tvb, offset, 1, FALSE);
|
|
|
|
|
/* CGI B1 */
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_uli_cgi_flg, tvb, offset, 1, FALSE);
|
|
|
|
|
offset++;
|
|
|
|
|
|
|
|
|
|
/* XXX Check if there is code to dissect this elsewhere e.g call it */
|
|
|
|
|
/* 8.22.1 CGI field */
|
|
|
|
|
if (flags&0x01){
|
|
|
|
|
/* The coding of CGI (Cell Global Identifier)
|
|
|
|
|
* is depicted in Figure 8.22.1-1. If MNC is 2 digits long, MNC digit 1
|
|
|
|
|
* shall be set to 0.
|
|
|
|
|
*/
|
|
|
|
|
/* XXX call CGI dissecton in one of the GSM dissectors here */
|
|
|
|
|
proto_tree_add_text(tree, tvb, offset, 7, "CGI (Cell Global Identifier) not dissected yet");
|
|
|
|
|
offset+=7;
|
|
|
|
|
if(offset==length)
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* 8.22.2 SAI field */
|
|
|
|
|
if (flags&0x02){
|
|
|
|
|
/*The coding of SAI (Service Area Identifier) is depicted in Figure 8.22.2-1.
|
|
|
|
|
* If MNC is 2 digits long, MNC digit 1 shall be set to 0.
|
|
|
|
|
*/
|
|
|
|
|
proto_tree_add_text(tree, tvb, offset, 7, "SAI (Service Area Identifier) not dissected yet");
|
|
|
|
|
offset+=7;
|
|
|
|
|
if(offset==length)
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
/* 8.22.3 RAI field */
|
|
|
|
|
if (flags&0x04){
|
|
|
|
|
/* The coding of RAI (Routing Area Identity) is depicted in Figure 8.22.3-1.
|
|
|
|
|
* If MNC is 2 digits long, MNC digit 1 shall be set to 0.
|
|
|
|
|
*/
|
|
|
|
|
proto_tree_add_text(tree, tvb, offset, 7, "RAI (Routing Area Identity) not dissected yet");
|
|
|
|
|
offset+=7;
|
|
|
|
|
if(offset==length)
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
/* 8.22.4 TAI field */
|
|
|
|
|
if (flags&0x08){
|
|
|
|
|
/* The coding of TAI (Tracking Area Identity) is depicted in Figure 8.22.4-1
|
|
|
|
|
* If MNC is 2 digits long, MNC digit 1 shall be set to 0.
|
|
|
|
|
*/
|
|
|
|
|
proto_tree_add_text(tree, tvb, offset, 5, "TAI (Tracking Area Identity) not dissected yet");
|
|
|
|
|
offset+=5;
|
|
|
|
|
if(offset==length)
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
/* 8.22.5 ECGI field */
|
|
|
|
|
if (flags&0x10){
|
|
|
|
|
/* The coding of ECGI (E-UTRAN Cell Global Identifier) is depicted in Figure 8.22.5-1
|
|
|
|
|
* If MNC is 2 digits long, MNC digit 1 shall be set to 0.
|
|
|
|
|
*/
|
|
|
|
|
proto_tree_add_text(tree, tvb, offset, 6, "ECGI (E-UTRAN Cell Global Identifier) not dissected yet");
|
|
|
|
|
offset+=6;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
2009-02-13 06:10:57 +00:00
|
|
|
* 8.23 Fully Qualified TEID (F-TEID)
|
2009-03-01 20:39:44 +00:00
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
dissect_gtpv2_f_teid(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 instance _U_)
|
|
|
|
|
{
|
|
|
|
|
proto_tree_add_text(tree, tvb, 0, length, "IE data not dissected yet");
|
|
|
|
|
}
|
|
|
|
|
/*
|
2009-02-13 06:10:57 +00:00
|
|
|
* 8.24 TMSI
|
2009-03-01 20:39:44 +00:00
|
|
|
*/
|
|
|
|
|
/*
|
2009-02-13 06:10:57 +00:00
|
|
|
* 8.25 Global CN-Id
|
2009-03-01 20:39:44 +00:00
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
dissect_gtpv2_g_cn_id(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 instance _U_)
|
|
|
|
|
{
|
|
|
|
|
proto_tree_add_text(tree, tvb, 0, length, "IE data not dissected yet");
|
|
|
|
|
}
|
|
|
|
|
/*
|
2009-02-13 06:10:57 +00:00
|
|
|
* 8.26 Legacy Quality of Service (QoS)
|
|
|
|
|
* 8.27 S103 PDN Data Forwarding Info (S103PDF)
|
|
|
|
|
* 8.28 S1-U Data Forwarding (S1UDF)
|
|
|
|
|
* 8.29 Delay Value
|
|
|
|
|
* 8.30 Bearer ID List
|
2009-03-01 20:39:44 +00:00
|
|
|
*/
|
|
|
|
|
/*
|
2009-02-13 06:10:57 +00:00
|
|
|
* 8.31 Bearer Context
|
2009-03-01 20:39:44 +00:00
|
|
|
*/
|
|
|
|
|
/*
|
2009-02-13 06:10:57 +00:00
|
|
|
* 8.32 S101 IP Address
|
|
|
|
|
* 8.33 S102 IP Address
|
|
|
|
|
* 8.34 Charging ID
|
|
|
|
|
* 8.35 Charging Characteristics
|
|
|
|
|
* 8.36 Trace Information
|
|
|
|
|
* 8.37 Bearer Flags
|
|
|
|
|
* 8.38 Paging Cause
|
|
|
|
|
* 8.39 PDN Type
|
|
|
|
|
* 8.40 Procedure Transaction ID (PTI)
|
|
|
|
|
* 8.41 DRX Parameter
|
|
|
|
|
* 8.42 UE Network Capability
|
|
|
|
|
* 8.43 MM Context
|
|
|
|
|
* 8.44 PDN Connection
|
|
|
|
|
* 8.45 GRE Key
|
|
|
|
|
* 8.46 PDU Numbers
|
|
|
|
|
* 8.47 EPS Bearer Contexts Prioritization (Contexts Prioritization)
|
|
|
|
|
* 8.48 LMA IP Address
|
|
|
|
|
* 8.49 Packet TMSI (P-TMSI)
|
|
|
|
|
* 8.50 P-TMSI Signature
|
|
|
|
|
* 8.51 Hop Counter
|
|
|
|
|
* 8.52 Authentication Quintuplet
|
|
|
|
|
* 8.53 Authentication Quadruplet
|
|
|
|
|
* 8.54 Complete Request Message
|
|
|
|
|
* 8.55 GUTI
|
|
|
|
|
* 8.56 Fully Qualified Container (F-Container)
|
|
|
|
|
* 8.57 Fully Qualified Cause (F-Cause)
|
|
|
|
|
* 8.58 Selected PLMN ID
|
|
|
|
|
* 8.59 Target Identification
|
|
|
|
|
* 8.60 NSAPI
|
|
|
|
|
* 8.61 Packet Flow ID
|
|
|
|
|
* 8.62 RAB Context
|
|
|
|
|
* 8.63 Source RNC PDCP context info
|
|
|
|
|
* 8.64 UDP Source Port Number
|
|
|
|
|
* 8.65 APN Restriction
|
|
|
|
|
* 8.66 Selection Mode
|
|
|
|
|
* 8.67 Cell Identification
|
|
|
|
|
* 8.68 Bearer Control Mode
|
|
|
|
|
*/
|
|
|
|
|
/*
|
|
|
|
|
* 8.69 Change Reporting Action
|
|
|
|
|
*/
|
|
|
|
|
static const value_string gtpv2_cng_rep_act_vals[] = {
|
|
|
|
|
{0, "Stop Reporting"},
|
|
|
|
|
{1, "Start Reporting CGI/SAI"},
|
|
|
|
|
{2, "Start Reporting RAI"},
|
|
|
|
|
{0, NULL}
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static void
|
2009-02-13 06:30:27 +00:00
|
|
|
dissect_cng_rep_act(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 instance _U_)
|
2009-02-13 06:10:57 +00:00
|
|
|
{
|
|
|
|
|
|
|
|
|
|
proto_tree_add_item(tree, hf_gtpv2_cng_rep_act, tvb, 0, 1, FALSE);
|
|
|
|
|
}
|
|
|
|
|
/*
|
|
|
|
|
* 8.70 PDN Connection Set Identifier (CSID)
|
|
|
|
|
* 8.71 Private Extension
|
|
|
|
|
*/
|
2009-02-11 19:48:21 +00:00
|
|
|
typedef struct _gtpv2_ie {
|
|
|
|
|
int ie_type;
|
2009-02-13 06:10:57 +00:00
|
|
|
void (*decode) (tvbuff_t *, packet_info *, proto_tree *, proto_item *, guint16, guint8);
|
2009-02-11 19:48:21 +00:00
|
|
|
} gtpv2_ie_t;
|
|
|
|
|
|
|
|
|
|
static const gtpv2_ie_t gtpv2_ies[] = {
|
|
|
|
|
{GTPV2_IE_IMSI, dissect_gtpv2_imsi},
|
|
|
|
|
{GTPV2_IE_CAUSE, dissect_gtpv2_cause}, /* 2, Cause (without embedded offending IE) 8.4 */
|
2009-02-16 21:21:11 +00:00
|
|
|
{GTPV2_REC_REST_CNT, dissect_gtpv2_recovery}, /* 3, Recovery (Restart Counter) 8.5 */
|
|
|
|
|
/* 4-50 Reserved for S101 interface Extendable / See 3GPP TS 29.276 [14] */
|
|
|
|
|
/* 51-70 Reserved for Sv interface Extendable / See 3GPP TS 29.280 [15] */
|
|
|
|
|
{GTPV2_APN, dissect_gtpv2_apn}, /* 71, Access Point Name (APN) 8.6 */
|
|
|
|
|
{GTPV2_EBI, dissect_gtpv2_ebi}, /* 73, EPS Bearer ID (EBI) 8.8 */
|
2009-02-11 19:48:21 +00:00
|
|
|
{GTPV2_IE_MSISDN, dissect_gtpv2_msisdn}, /* 76, MSISDN 8.11 */
|
2009-02-16 21:21:11 +00:00
|
|
|
{GTPV2_INDICATION, dissect_gtpv2_ind}, /* 77 Indication 8.12 */
|
|
|
|
|
{GTPV2_PCO, dissect_gtpv2_pco}, /* 78 Protocol Configuration Options (PCO) 8.13 */
|
2009-03-01 20:39:44 +00:00
|
|
|
{GTPV2_PAA, dissect_gtpv2_paa}, /* 79 PDN Address Allocation (PAA) 8.14 */
|
|
|
|
|
{GTPV2_BEARER_QOS,dissect_gtpv2_bearer_qos}, /* 80 Bearer Level Quality of Service (Bearer QoS) 8.15 */
|
|
|
|
|
{GTPV2_FLOW_QOS, dissect_gtpv2_flow_qos}, /* 81 Flow Quality of Service (Flow QoS) 8.16 */
|
2009-02-13 06:10:57 +00:00
|
|
|
{GTPV2_IE_RAT_TYPE, dissect_gtpv2_rat_type}, /* 82, RAT Type 8.17 */
|
|
|
|
|
{GTPV2_IE_SERV_NET, dissect_gtpv2_serv_net}, /* 83, Serving Network 8.18 */
|
2009-03-01 20:39:44 +00:00
|
|
|
{GTPV2_TEID, dissect_gtpv2_teid}, /* 84, TEID-C 8.19 */
|
|
|
|
|
{GTPV2_ULI, dissect_gtpv2_uli}, /* 87, User Location Info (ULI) 8.22 */
|
|
|
|
|
{GTPV2_F_TEID, dissect_gtpv2_f_teid}, /* 88, Fully Qualified Tunnel Endpoint Identifier (F-TEID) 8.23 */
|
|
|
|
|
{GTPV2_G_CN_ID, dissect_gtpv2_g_cn_id}, /* 90, Global CN-Id 8.25 */
|
2009-02-13 06:10:57 +00:00
|
|
|
{GTPV2_IE_CNG_REP_ACT, dissect_cng_rep_act}, /* 139, Change Reporting Action 8.69 */
|
2009-02-16 21:21:11 +00:00
|
|
|
/* 142-254 Spare. For future use. FFS */
|
|
|
|
|
|
2009-02-11 19:48:21 +00:00
|
|
|
{0, dissect_gtpv2_unknown}
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2009-02-10 21:57:56 +00:00
|
|
|
static void
|
2009-02-10 23:44:56 +00:00
|
|
|
dissect_gtpv2_ie_common(tvbuff_t * tvb, packet_info * pinfo _U_, proto_tree * tree, gint offset)
|
2009-02-10 21:57:56 +00:00
|
|
|
{
|
|
|
|
|
proto_tree *ie_tree;
|
|
|
|
|
proto_item *ti;
|
2009-02-11 19:48:21 +00:00
|
|
|
tvbuff_t *ie_tvb;
|
|
|
|
|
guint8 type, instance;
|
2009-02-10 21:57:56 +00:00
|
|
|
guint16 length;
|
2009-02-11 19:48:21 +00:00
|
|
|
int i;
|
2009-02-10 21:57:56 +00:00
|
|
|
/*
|
|
|
|
|
* Octets 8 7 6 5 4 3 2 1
|
|
|
|
|
* 1 Type
|
|
|
|
|
* 2-3 Length = n
|
|
|
|
|
* 4 CR Spare Instance
|
|
|
|
|
* 5-(n+4) IE specific data
|
|
|
|
|
*/
|
2009-02-13 06:10:57 +00:00
|
|
|
while(offset < (gint)tvb_reported_length(tvb)){
|
2009-02-10 21:57:56 +00:00
|
|
|
/* Get the type and length */
|
|
|
|
|
type = tvb_get_guint8(tvb,offset);
|
|
|
|
|
length = tvb_get_ntohs(tvb, offset+1);
|
|
|
|
|
ti = proto_tree_add_text(tree, tvb, offset, 4 + length, "%s : ", val_to_str(type, gtpv2_element_type_vals, "Unknown"));
|
|
|
|
|
ie_tree = proto_item_add_subtree(ti, ett_gtpv2_ie);
|
|
|
|
|
/* Octet 1 */
|
|
|
|
|
proto_tree_add_item(ie_tree, hf_gtpv2_ie, tvb, offset, 1, FALSE);
|
|
|
|
|
offset++;
|
|
|
|
|
|
|
|
|
|
/*Octet 2 - 3 */
|
|
|
|
|
proto_tree_add_item(ie_tree, hf_gtpv2_ie_len, tvb, offset, 2, FALSE);
|
|
|
|
|
offset+=2;
|
|
|
|
|
/* CR Spare Instance Octet 4*/
|
|
|
|
|
proto_tree_add_item(ie_tree, hf_gtpv2_cr, tvb, offset, 1, FALSE);
|
2009-02-11 19:48:21 +00:00
|
|
|
|
|
|
|
|
instance = tvb_get_guint8(tvb,offset)& 0x0f;
|
2009-02-10 21:57:56 +00:00
|
|
|
proto_tree_add_item(ie_tree, hf_gtpv2_instance, tvb, offset, 1, FALSE);
|
|
|
|
|
offset++;
|
2009-02-11 19:48:21 +00:00
|
|
|
|
2009-02-10 21:57:56 +00:00
|
|
|
/* TODO: call IE dissector here */
|
2009-02-11 19:48:21 +00:00
|
|
|
if(type==GTPV2_IE_RESERVED){
|
|
|
|
|
/* Treat IE type zero specal as type zero is used to end the loop in the else branch */
|
|
|
|
|
proto_tree_add_text(ie_tree, tvb, offset, length, "IE type Zero is Reserved and should not be used");
|
|
|
|
|
}else{
|
|
|
|
|
i = -1;
|
|
|
|
|
/* Loop over the IE dissector list to se if we find an entry, the last entry will have ie_type=0 braking the loop */
|
|
|
|
|
while (gtpv2_ies[++i].ie_type){
|
|
|
|
|
if (gtpv2_ies[i].ie_type == type)
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
/* Just give the IE dissector the IE */
|
|
|
|
|
ie_tvb = tvb_new_subset(tvb, offset, length, length);
|
2009-02-13 06:10:57 +00:00
|
|
|
(*gtpv2_ies[i].decode) (ie_tvb, pinfo , ie_tree, ti, length, instance);
|
2009-02-11 19:48:21 +00:00
|
|
|
}
|
|
|
|
|
|
2009-02-10 21:57:56 +00:00
|
|
|
offset = offset + length;
|
|
|
|
|
}
|
|
|
|
|
}
|
2009-02-11 19:48:21 +00:00
|
|
|
|
2009-02-10 21:57:56 +00:00
|
|
|
static void
|
|
|
|
|
dissect_gtpv2(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree)
|
|
|
|
|
{
|
|
|
|
|
proto_tree *gtpv2_tree, *flags_tree;
|
|
|
|
|
proto_item *ti, *tf;
|
|
|
|
|
guint8 message_type, t_flag;
|
|
|
|
|
int offset = 0;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Currently we get called from the GTP dissector no need to check the version */
|
|
|
|
|
if (check_col(pinfo->cinfo, COL_PROTOCOL))
|
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "GTPv2");
|
|
|
|
|
if (check_col(pinfo->cinfo, COL_INFO))
|
|
|
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
|
|
|
|
|
|
/* message type is in octet 2 */
|
|
|
|
|
message_type = tvb_get_guint8(tvb,1);
|
|
|
|
|
if (check_col(pinfo->cinfo, COL_INFO))
|
|
|
|
|
col_add_str(pinfo->cinfo, COL_INFO, val_to_str(message_type, gtpv2_message_type_vals, "Unknown"));
|
|
|
|
|
|
2009-02-11 19:48:21 +00:00
|
|
|
|
|
|
|
|
proto_tree_add_item(tree, proto_gtpv2, tvb, offset, -1, FALSE);
|
|
|
|
|
|
2009-02-10 21:57:56 +00:00
|
|
|
if (tree) {
|
2009-02-11 19:48:21 +00:00
|
|
|
ti = proto_tree_add_text(tree, tvb, offset, -1, "%s", val_to_str(message_type, gtpv2_message_type_vals, "Unknown"));
|
2009-02-10 21:57:56 +00:00
|
|
|
gtpv2_tree = proto_item_add_subtree(ti, ett_gtpv2);
|
2009-02-11 19:48:21 +00:00
|
|
|
|
2009-02-10 21:57:56 +00:00
|
|
|
/* Control Plane GTP uses a variable length header. Control Plane GTP header
|
|
|
|
|
* length shall be a multiple of 4 octets.
|
|
|
|
|
* Figure 5.1-1 illustrates the format of the GTPv2-C Header.
|
|
|
|
|
* Bits 8 7 6 5 4 3 2 1
|
|
|
|
|
* Octets 1 Version Spare T Spare Spare Spare
|
|
|
|
|
* 2 Message Type
|
|
|
|
|
* 3 Message Length (1st Octet)
|
|
|
|
|
* 4 Message Length (2nd Octet)
|
2009-03-04 19:51:55 +00:00
|
|
|
* m-k(m+3) If T flag is set to 1, then TEID shall be placed into octets 5-8.
|
2009-02-10 21:57:56 +00:00
|
|
|
* Otherwise, TEID field is not present at all.
|
|
|
|
|
* n-(n+1) Sequence Number
|
|
|
|
|
* (n+2)-(n+3) Spare
|
|
|
|
|
* Figure 5.1-1: General format of GTPv2 Header for Control Plane
|
|
|
|
|
*/
|
|
|
|
|
tf = proto_tree_add_item(gtpv2_tree, hf_gtpv2_flags, tvb, offset, 1, FALSE);
|
|
|
|
|
flags_tree = proto_item_add_subtree(tf, ett_gtpv2_flags);
|
|
|
|
|
|
|
|
|
|
/* Octet 1 */
|
|
|
|
|
t_flag = (tvb_get_guint8(tvb,offset) & 0x08)>>3;
|
|
|
|
|
proto_tree_add_item(flags_tree, hf_gtpv2_version, tvb, offset, 1, FALSE);
|
|
|
|
|
proto_tree_add_item(flags_tree, hf_gtpv2_t, tvb, offset, 1, FALSE);
|
|
|
|
|
offset++;
|
|
|
|
|
|
|
|
|
|
/* Octet 2 */
|
|
|
|
|
proto_tree_add_item(gtpv2_tree, hf_gtpv2_message_type, tvb, offset, 1, FALSE);
|
|
|
|
|
offset++;
|
|
|
|
|
/* Octet 3 - 4 */
|
|
|
|
|
proto_tree_add_item(gtpv2_tree, hf_gtpv2_msg_length, tvb, offset, 2, FALSE);
|
|
|
|
|
offset+=2;
|
|
|
|
|
|
|
|
|
|
if(t_flag){
|
|
|
|
|
/* Tunnel Endpoint Identifier 4 octets */
|
|
|
|
|
proto_tree_add_item(gtpv2_tree, hf_gtpv2_teid, tvb, offset, 4, FALSE);
|
|
|
|
|
offset+=4;
|
|
|
|
|
}
|
|
|
|
|
/* Sequence Number 2 octets */
|
|
|
|
|
proto_tree_add_item(gtpv2_tree, hf_gtpv2_seq, tvb, offset, 2, FALSE);
|
|
|
|
|
offset+=2;
|
|
|
|
|
|
|
|
|
|
/* Spare 2 octets */
|
|
|
|
|
proto_tree_add_item(gtpv2_tree, hf_gtpv2_spare, tvb, offset, 2, FALSE);
|
|
|
|
|
offset+=2;
|
|
|
|
|
|
2009-02-11 19:48:21 +00:00
|
|
|
dissect_gtpv2_ie_common(tvb, pinfo, gtpv2_tree, offset);
|
2009-02-10 21:57:56 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
void proto_register_gtpv2(void)
|
|
|
|
|
{
|
|
|
|
|
static hf_register_info hf_gtpv2[] = {
|
|
|
|
|
{&hf_gtpv2_flags,
|
|
|
|
|
{"Flags", "gtpv2.flags",
|
|
|
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
|
|
|
"Flags", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{&hf_gtpv2_version,
|
|
|
|
|
{"Version", "gtpv2.version",
|
|
|
|
|
FT_UINT8, BASE_DEC, NULL, 0xe0,
|
|
|
|
|
"Version", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{ &hf_gtpv2_t,
|
|
|
|
|
{"T", "gtpv2.t",
|
|
|
|
|
FT_UINT8, BASE_DEC, NULL, 0x08,
|
|
|
|
|
"If TEID field is present or not", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{ &hf_gtpv2_message_type,
|
|
|
|
|
{"Message Type", "gtpv2.message_type",
|
|
|
|
|
FT_UINT8, BASE_DEC, VALS(gtpv2_message_type_vals), 0x0,
|
|
|
|
|
"Message Type", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{ &hf_gtpv2_msg_length,
|
|
|
|
|
{"Message Length", "gtpv2.msg_lengt",
|
|
|
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
|
|
|
"Message Length", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{ &hf_gtpv2_teid,
|
2009-02-11 19:48:21 +00:00
|
|
|
{"Tunnel Endpoint Identifier", "gtpv2.teid",
|
2009-02-10 21:57:56 +00:00
|
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
|
|
|
"TEID", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{ &hf_gtpv2_seq,
|
|
|
|
|
{"Sequence Number", "gtpv2.seq",
|
|
|
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
|
|
|
"SEQ", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{ &hf_gtpv2_spare,
|
2009-02-11 19:48:21 +00:00
|
|
|
{"Spare", "gtpv2.spare",
|
2009-02-10 21:57:56 +00:00
|
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
|
|
|
"Spare", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{ &hf_gtpv2_ie,
|
|
|
|
|
{"IE Type", "gtpv2.ie_type",
|
|
|
|
|
FT_UINT8, BASE_DEC, VALS(gtpv2_element_type_vals), 0x0,
|
|
|
|
|
"IE Type", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{ &hf_gtpv2_ie_len,
|
|
|
|
|
{"IE Length", "gtpv2.ie_len",
|
|
|
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
|
|
|
"length of the information element excluding the first four octets", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{ &hf_gtpv2_cr,
|
|
|
|
|
{"CR flag", "gtpv2.cr",
|
|
|
|
|
FT_UINT8, BASE_DEC, NULL, 0xe0,
|
|
|
|
|
"CR flag", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{ &hf_gtpv2_instance,
|
|
|
|
|
{"Instance", "gtpv2.instance",
|
|
|
|
|
FT_UINT8, BASE_DEC, NULL, 0x0f,
|
|
|
|
|
"Instance", HFILL}
|
|
|
|
|
},
|
2009-02-11 19:48:21 +00:00
|
|
|
{ &hf_gtpv2_cause,
|
|
|
|
|
{"Cause", "gtpv2.cause",
|
|
|
|
|
FT_UINT8, BASE_DEC, VALS(gtpv2_cause_vals), 0x0,
|
|
|
|
|
"cause", HFILL}
|
|
|
|
|
},
|
2009-02-16 21:21:11 +00:00
|
|
|
{ &hf_gtpv2_rec,
|
|
|
|
|
{"Restart Counter", "gtpv2.rec",
|
|
|
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
|
|
|
"Restart Counter", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{&hf_gtpv2_apn,
|
|
|
|
|
{"APN", "gtp.apn",
|
|
|
|
|
FT_STRING, BASE_DEC, NULL, 0x0,
|
|
|
|
|
"Access Point Name", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{&hf_gtpv2_ebi,
|
|
|
|
|
{"EPS Bearer ID (EBI)", "gtpv2.ebi",
|
|
|
|
|
FT_UINT8, BASE_DEC, NULL, 0x0f,
|
|
|
|
|
"EPS Bearer ID (EBI)", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{&hf_gtpv2_daf,
|
|
|
|
|
{"DAF (Dual Address Bearer Flag)", "gtpv2.daf",
|
2009-03-01 20:39:44 +00:00
|
|
|
FT_BOOLEAN, 8, NULL, 0x80, "DAF", HFILL}
|
2009-02-16 21:21:11 +00:00
|
|
|
},
|
|
|
|
|
{&hf_gtpv2_dtf,
|
|
|
|
|
{"DTF (Direct Tunnel Flag)","gtpv2.dtf",
|
|
|
|
|
FT_BOOLEAN, 8, NULL, 0x40, "DTF", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{&hf_gtpv2_hi,
|
|
|
|
|
{"HI (Handover Indication)", "gtpv2.hi",
|
|
|
|
|
FT_BOOLEAN, 8, NULL, 0x20, "HI", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{&hf_gtpv2_dfi,
|
|
|
|
|
{"DFI (Direct Forwarding Indication)", "gtpv2.dfi",
|
|
|
|
|
FT_BOOLEAN, 8, NULL, 0x10, "DFI", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{&hf_gtpv2_oi,
|
|
|
|
|
{"OI (Operation Indication)","gtp.oi",
|
|
|
|
|
FT_BOOLEAN, 8, NULL, 0x08, "OI", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{&hf_gtpv2_isrsi,
|
|
|
|
|
{"ISRSI (Idle mode Signalling Reduction Supported Indication)", "gtpv2.isrsi",
|
|
|
|
|
FT_BOOLEAN, 8, NULL, 0x04, "ISRSI", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{&hf_gtpv2_israi,
|
|
|
|
|
{"ISRAI (Idle mode Signalling Reduction Activation Indication)", "gtpv2.israi",
|
|
|
|
|
FT_BOOLEAN, 8, NULL, 0x02, "ISRAI", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{&hf_gtpv2_sgwci,
|
|
|
|
|
{"SGWCI (SGW Change Indication)", "gtpv2.sgwci",
|
|
|
|
|
FT_BOOLEAN, 8, NULL, 0x01, "SGWCI", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{&hf_gtpv2_pt,
|
|
|
|
|
{"PT (Protocol Type)", "gtpv2.pt",
|
|
|
|
|
FT_BOOLEAN, 8, NULL, 0x08, "PT", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{&hf_gtpv2_tdi,
|
|
|
|
|
{"TDI (Teardown Indication)", "gtpv2.tdi",
|
|
|
|
|
FT_BOOLEAN, 8, NULL, 0x04, "TDI", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{&hf_gtpv2_si,
|
|
|
|
|
{"SI (Scope Indication)", "gtpv2.si",
|
|
|
|
|
FT_BOOLEAN, 8, NULL, 0x02, "SI", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{&hf_gtpv2_msv,
|
|
|
|
|
{"MSV (MS Validated)", "gtpv2.msv",
|
|
|
|
|
FT_BOOLEAN, 8, NULL, 0x01, "MSV", HFILL}
|
|
|
|
|
},
|
2009-03-01 20:39:44 +00:00
|
|
|
{ &hf_gtpv2_pdn_type,
|
|
|
|
|
{"PDN Type", "gtpv2.pdn_type",
|
|
|
|
|
FT_UINT8, BASE_DEC, VALS(gtpv2_pdn_type_vals), 0x07,
|
|
|
|
|
"PDN Type", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{ &hf_gtpv2_pdn_ipv4,
|
|
|
|
|
{"PDN IPv4", "gtpv2.pdn_ipv4",
|
|
|
|
|
FT_IPv4, BASE_DEC, NULL, 0x0,
|
|
|
|
|
"PDN IPv4", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{ &hf_gtpv2_pdn_ipv6_len,
|
|
|
|
|
{"IPv6 Prefix Length", "gtpv2.pdn_ipv6_len",
|
|
|
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
|
|
|
"IPv6 Prefix Length", HFILL}
|
|
|
|
|
},
|
|
|
|
|
{ &hf_gtpv2_pdn_ipv6,
|
|
|
|
|
{"PDN IPv6", "gtpv2.pdn_ipv6",
|
|
|
|
|
FT_IPv6, BASE_HEX, NULL, 0x0,
|
|
|
|
|
"PDN IPv6", HFILL}
|
|
|
|
|
},
|
2009-02-13 06:10:57 +00:00
|
|
|
{ &hf_gtpv2_rat_type,
|
|
|
|
|
{"RAT Type", "gtpv2.rat_type",
|
|
|
|
|
FT_UINT8, BASE_DEC, VALS(gtpv2_rat_type_vals), 0x0,
|
|
|
|
|
"RAT Type", HFILL}
|
|
|
|
|
},
|
2009-03-01 20:39:44 +00:00
|
|
|
{ &hf_gtpv2_uli_ecgi_flg,
|
|
|
|
|
{"ECGI Present Flag)", "gtpv2.uli_ecgi_flg",
|
|
|
|
|
FT_BOOLEAN, 8, NULL, 0x10,
|
|
|
|
|
NULL, HFILL}
|
|
|
|
|
},
|
|
|
|
|
{ &hf_gtpv2_uli_tai_flg,
|
|
|
|
|
{"TAI Present Flag)", "gtpv2.uli_tai_flg",
|
|
|
|
|
FT_BOOLEAN, 8, NULL, 0x08,
|
|
|
|
|
NULL, HFILL}
|
|
|
|
|
},
|
|
|
|
|
{ &hf_gtpv2_uli_rai_flg,
|
|
|
|
|
{"RAI Present Flag)", "gtpv2.uli_rai_flg",
|
|
|
|
|
FT_BOOLEAN, 8, NULL, 0x04,
|
|
|
|
|
NULL, HFILL}
|
|
|
|
|
},
|
|
|
|
|
{ &hf_gtpv2_uli_sai_flg,
|
|
|
|
|
{"SAI Present Flag)", "gtpv2.uli_sai_flg",
|
|
|
|
|
FT_BOOLEAN, 8, NULL, 0x02,
|
|
|
|
|
NULL, HFILL}
|
|
|
|
|
},
|
|
|
|
|
{ &hf_gtpv2_uli_cgi_flg,
|
|
|
|
|
{"CGI Present Flag)", "gtpv2.uli_cgi_flg",
|
|
|
|
|
FT_BOOLEAN, 8, NULL, 0x01,
|
|
|
|
|
NULL, HFILL}
|
|
|
|
|
},
|
2009-02-13 06:10:57 +00:00
|
|
|
{ &hf_gtpv2_cng_rep_act,
|
|
|
|
|
{"Change Reporting Action", "gtpv2.cng_rep_act",
|
|
|
|
|
FT_UINT8, BASE_DEC, VALS(gtpv2_cng_rep_act_vals), 0x0,
|
|
|
|
|
"Change Reporting Action", HFILL}
|
|
|
|
|
},
|
2009-02-10 21:57:56 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static gint *ett_gtpv2_array[] = {
|
|
|
|
|
&ett_gtpv2,
|
|
|
|
|
&ett_gtpv2_flags,
|
|
|
|
|
&ett_gtpv2_ie,
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
proto_gtpv2 = proto_register_protocol("GPRS Tunneling Protocol V2", "GTPv2", "gtpv2");
|
|
|
|
|
proto_register_field_array(proto_gtpv2, hf_gtpv2, array_length(hf_gtpv2));
|
|
|
|
|
proto_register_subtree_array(ett_gtpv2_array, array_length(ett_gtpv2_array));
|
|
|
|
|
|
|
|
|
|
register_dissector("gtpv2", dissect_gtpv2, proto_gtpv2);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* The registration hand-off routine */
|
|
|
|
|
void
|
|
|
|
|
proto_reg_handoff_gtpv2(void)
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
}
|
