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wireshark/packet-gtp.c

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/* packet-gtp.c
*
* Routines for GTP dissection
* Copyright 2001, Michal Melerowicz <michal.melerowicz@nokia.com>
* Nicolas Balkota <balkota@mac.com>
*
* $Id: packet-gtp.c,v 1.8 2001/09/11 08:14:38 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#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
#include "packet.h"
#include "packet-ipv6.h"
#include "prefs.h"
#define GTP_PORT 3386
#define GTP3C_PORT 2123 /* 3G Control PDU */
#define GTP3U_PORT 2152 /* 3G T-PDU */
#define GTP_HDR_LENGTH 20
#define GTP3_HDR_LENGTH 12
/* for function checking compliance with ETSI */
#define MANDATORY 1
#define OPTIONAL 2
#define CONDITIONAL 4
static int g_gtp_port = GTP_PORT;
static int g_gtp3c_port = GTP3C_PORT;
static int g_gtp3u_port = GTP3U_PORT;
void proto_reg_handoff_gtp(void);
static int proto_gtp = -1;
static int proto_gtp3 = -1;
static int hf_gtp_flags = -1;
static int hf_gtp3_flags = -1;
static int hf_gtp_flags_ver = -1;
static int hf_gtp_flags_pt = -1;
static int hf_gtp_flags_spare = -1;
static int hf_gtp3_flags_spare = -1;
static int hf_gtp3_flags_e = -1;
static int hf_gtp3_flags_s = -1;
static int hf_gtp_flags_snn = -1;
static int hf_gtp3_flags_pn = -1;
static int hf_gtp_message_type = -1;
static int hf_gtp_length = -1;
static int hf_gtp_seq_number = -1;
static int hf_gtp_flow_label = -1;
static int hf_gtp_sndcp_number = -1;
static int hf_gtp_npdu_number = -1;
static int hf_gtp_tid = -1;
static int hf_gtp_teid = -1;
static int hf_gtp_ext = -1;
static int hf_gtp_next = -1;
static int hf_gtp_ext_cause = -1;
static int hf_gtp_ext_imsi = -1;
static int hf_gtp_ext_rai_mcc = -1;
static int hf_gtp_ext_rai_mnc = -1;
static int hf_gtp_ext_rai_rac = -1;
static int hf_gtp_ext_rai_lac = -1;
static int hf_gtp_ext_tlli = -1;
static int hf_gtp_ext_ptmsi = -1;
static int hf_gtp_ext_qos_spare1 = -1;
static int hf_gtp_ext_qos_delay = -1;
static int hf_gtp_ext_qos_mean = -1;
static int hf_gtp_ext_qos_peak = -1;
static int hf_gtp_ext_qos_spare2 = -1;
static int hf_gtp_ext_qos_precedence = -1;
static int hf_gtp_ext_qos_spare3 = -1;
static int hf_gtp_ext_qos_reliability = -1;
static int hf_gtp_ext_reorder = -1;
static int hf_gtp_ext_map_cause = -1;
static int hf_gtp_ext_ptmsi_sig = -1;
static int hf_gtp_ext_ms_valid = -1;
static int hf_gtp_ext_recover = -1;
static int hf_gtp_ext_sel_mode = -1;
static int hf_gtp_ext_flow_label = -1;
static int hf_gtp3_ext_teid_data = -1; /* 3G */
static int hf_gtp_ext_flow_sig = -1;
static int hf_gtp3_ext_teid_cp = -1; /* 3G */
static int hf_gtp_ext_nsapi = -1;
static int hf_gtp_ext_flow_ii = -1;
static int hf_gtp3_ext_teid_ii = -1; /* 3G */
static int hf_gtp_ext_ms_reason = -1;
static int hf_gtp3_ext_tear_ind = -1; /* 3G */
static int hf_gtp3_ext_ranap_cause = -1; /* 3G */
static int hf_gtp3_ext_rp_sms = -1; /* 3G */
static int hf_gtp3_ext_rp_spare = -1; /* 3G */
static int hf_gtp3_ext_rp_nsapi = -1; /* 3G */
static int hf_gtp3_ext_rp = -1; /* 3G */
static int hf_gtp3_ext_pkt_flow_id = -1; /* 3G */
static int hf_gtp3_ext_chrg_char_s = -1; /* 3G */
static int hf_gtp3_ext_chrg_char_n = -1; /* 3G */
static int hf_gtp3_ext_chrg_char_p = -1; /* 3G */
static int hf_gtp3_ext_chrg_char_f = -1; /* 3G */
static int hf_gtp3_ext_chrg_char_h = -1; /* 3G */
static int hf_gtp3_ext_chrg_char_r = -1; /* 3G */
static int hf_gtp3_ext_trace_ref = -1; /* 3G */
static int hf_gtp3_ext_trace_type = -1; /* 3G */
static int hf_gtp3_ext_ms_reason = -1; /* 3G */
static int hf_gtp_ext_tr_comm = -1; /* charging */
static int hf_gtp_ext_chrg_id = -1;
static int hf_gtp_ext_user_ipv4 = -1;
static int hf_gtp_ext_user_ipv6 = -1;
static int hf_gtp_ext_user_addr_pdp_org = -1;
static int hf_gtp_ext_user_addr_pdp_type= -1;
static int hf_gtp_ext_apn = -1;
static int hf_gtp_ext_proto_conf = -1;
static int hf_gtp_ext_gsn_ipv4 = -1;
static int hf_gtp_ext_gsn_ipv6 = -1;
static int hf_gtp_ext_gsn_addr_type = -1;
static int hf_gtp_ext_gsn_addr_len = -1;
static int hf_gtp_ext_msisdn = -1;
static int hf_gtp_ext_qos_al_ret_priority= -1;
static int hf_gtp_ext_qos_traf_class = -1;
static int hf_gtp_ext_qos_del_order = -1;
static int hf_gtp_ext_qos_del_err_sdu = -1;
static int hf_gtp_ext_qos_max_sdu_size = -1;
static int hf_gtp_ext_qos_max_ul = -1;
static int hf_gtp_ext_qos_max_dl = -1;
static int hf_gtp_ext_qos_res_ber = -1;
static int hf_gtp_ext_qos_sdu_err_ratio = -1;
static int hf_gtp_ext_qos_trans_delay = -1;
static int hf_gtp_ext_qos_traf_handl_priority = -1;
static int hf_gtp_ext_qos_guar_ul = -1;
static int hf_gtp_ext_qos_guar_dl = -1;
static int hf_gtp_ext_rnc_ipv4 = -1;
static int hf_gtp_ext_rnc_ipv6 = -1;
static int hf_gtp_ext_chrg_ipv4 = -1;
static int hf_gtp_ext_chrg_ipv6 = -1;
static int hf_gtp_ext_node_ipv4 = -1;
static int hf_gtp_ext_node_ipv6 = -1;
static int hf_gtp_ext_ext_id = -1;
static int hf_gtp_ext_ext_val = -1;
static int hf_gtp_ext_unknown = -1;
/* Initialize the subtree pointers */
static gint ett_gtp = -1;
static gint ett_gtp_flags = -1;
static gint ett_gtp_ext = -1;
static gint ett_gtp_ext_rai = -1;
static gint ett_gtp_ext_qos = -1;
static gint ett_gtp_ext_auth_tri = -1;
static gint ett_gtp_ext_flow_ii = -1;
static gint ett_gtp_ext_rab_cntxt = -1;
static gint ett_gtp_ext_rp = -1;
static gint ett_gtp_ext_pkt_flow_id = -1;
static gint ett_gtp_ext_chrg_char = -1;
static gint ett_gtp_ext_user = -1;
static gint ett_gtp_ext_mm = -1;
static gint ett_gtp_ext_trip = -1;
static gint ett_gtp_ext_quint = -1;
static gint ett_gtp_ext_pdp = -1;
static gint ett_gtp_ext_apn = -1;
static gint ett_gtp_ext_proto = -1;
static gint ett_gtp_ext_gsn_addr = -1;
static gint ett_gtp_ext_tft = -1;
static gint ett_gtp_ext_tft_pf = -1;
static gint ett_gtp_ext_rab_setup = -1;
static gint ett_gtp_ext_hdr_list = -1;
static gint ett_gtp_ext_chrg_addr = -1;
static gint ett_gtp_ext_node_addr = -1;
static gint ett_gtp_ext_rel_pack = -1;
static gint ett_gtp_ext_can_pack = -1;
static gint ett_gtp_ext_data_resp = -1;
static gint ett_gtp_ext_priv_ext = -1;
static gint ett_gtp3 = -1;
static gint ett_gtp3_flags = -1;
/* Definition of user preferences panel fields */
#define DONT_DISSECT_CDRS 2
static gboolean gtp_tpdu = TRUE;
static gint gtp_cdr_as = DONT_DISSECT_CDRS; /* 2 = do not dissect */
static gboolean gtp_etsi_order = FALSE;
static gboolean gtp3_etsi_order = FALSE;
static int gtp_port = 0;
static int gtp3c_port = 0;
static int gtp3u_port = 0;
static gboolean ppp_reorder = TRUE;
/* Definition of flags masks */
#define GTP_VER_MASK 0xE0
static const value_string ver_types[] = {
{ 0, "GTP release 97/98 version" },
{ 1, "GTP release 99 version" },
{ 2, "None" },
{ 3, "None" },
{ 4, "None" },
{ 5, "None" },
{ 6, "None" },
{ 7, "None" },
{ 0, NULL }
};
#define GTP_PT_MASK 0x10
#define GTP_SPARE_MASK 0x0E
#define GTP3_SPARE_MASK 0x08
#define GTP3_E_MASK 0x04
#define GTP3_S_MASK 0x02
#define GTP_SNN_MASK 0x01
#define GTP3_PN_MASK 0x01
/* Definition of 3G charging characteristics masks */
#define GTP_MASK_CHRG_CHAR_S 0xF000
#define GTP_MASK_CHRG_CHAR_N 0x0800
#define GTP_MASK_CHRG_CHAR_P 0x0400
#define GTP_MASK_CHRG_CHAR_F 0x0200
#define GTP_MASK_CHRG_CHAR_H 0x0100
#define GTP_MASK_CHRG_CHAR_R 0x00FF
/* Definition of GSN Address masks */
#define GTP_EXT_GSN_ADDR_TYPE_MASK 0xC0
#define GTP_EXT_GSN_ADDR_LEN_MASK 0x3F
/* Definition of QoS masks */
#define GTP_EXT_QOS_SPARE1_MASK 0xC0
#define GTP_EXT_QOS_DELAY_MASK 0x38
#define GTP_EXT_QOS_RELIABILITY_MASK 0x07
#define GTP_EXT_QOS_PEAK_MASK 0xF0
#define GTP_EXT_QOS_SPARE2_MASK 0x08
#define GTP_EXT_QOS_PRECEDENCE_MASK 0x07
#define GTP_EXT_QOS_SPARE3_MASK 0xE0
#define GTP_EXT_QOS_MEAN_MASK 0x1F
#define GTP_EXT_QOS_TRAF_CLASS_MASK 0xE0
#define GTP_EXT_QOS_DEL_ORDER_MASK 0x18
#define GTP_EXT_QOS_DEL_ERR_SDU_MASK 0x07
#define GTP_EXT_QOS_RES_BER_MASK 0xF0
#define GTP_EXT_QOS_SDU_ERR_RATIO_MASK 0x0F
#define GTP_EXT_QOS_TRANS_DELAY_MASK 0xFC
#define GTP_EXT_QOS_TRAF_HANDL_PRIORITY_MASK 0x03
/* Definition of Radio Priority's masks */
#define GTP3_EXT_RP_NSAPI_MASK 0xF0
#define GTP3_EXT_RP_SPARE_MASK 0x08
#define GTP3_EXT_RP_MASK 0x07
/* definitions of GTP messages */
#define GTP_MSG_UNKNOWN 0x00
#define GTP_MSG_ECHO_REQ 0x01
#define GTP_MSG_ECHO_RESP 0x02
#define GTP_MSG_VER_NOT_SUPP 0x03
#define GTP_MSG_NODE_ALIVE_REQ 0x04
#define GTP_MSG_NODE_ALIVE_RESP 0x05
#define GTP_MSG_REDIR_REQ 0x06
#define GTP_MSG_REDIR_RESP 0x07
#define GTP_MSG_CREATE_PDP_REQ 0x10
#define GTP_MSG_CREATE_PDP_RESP 0x11
#define GTP_MSG_UPDATE_PDP_REQ 0x12
#define GTP_MSG_UPDATE_PDP_RESP 0x13
#define GTP_MSG_DELETE_PDP_REQ 0x14
#define GTP_MSG_DELETE_PDP_RESP 0x15
#define GTP_MSG_CREATE_AA_PDP_REQ 0x16 /* 2G */
#define GTP_MSG_CREATE_AA_PDP_RESP 0x17 /* 2G */
#define GTP_MSG_DELETE_AA_PDP_REQ 0x18 /* 2G */
#define GTP_MSG_DELETE_AA_PDP_RESP 0x19 /* 2G */
#define GTP_MSG_ERR_IND 0x1A
#define GTP_MSG_PDU_NOTIFY_REQ 0x1B
#define GTP_MSG_PDU_NOTIFY_RESP 0x1C
#define GTP_MSG_PDU_NOTIFY_REJ_REQ 0x1D
#define GTP_MSG_PDU_NOTIFY_REJ_RESP 0x1E
#define GTP_MSG_SUPP_EXT_HDR 0x1F
#define GTP_MSG_SEND_ROUT_INFO_REQ 0x20
#define GTP_MSG_SEND_ROUT_INFO_RESP 0x21
#define GTP_MSG_FAIL_REP_REQ 0x22
#define GTP_MSG_FAIL_REP_RESP 0x23
#define GTP_MSG_MS_PRESENT_REQ 0x24
#define GTP_MSG_MS_PRESENT_RESP 0x25
#define GTP_MSG_IDENT_REQ 0x30
#define GTP_MSG_IDENT_RESP 0x31
#define GTP_MSG_SGSN_CNTXT_REQ 0x32
#define GTP_MSG_SGSN_CNTXT_RESP 0x33
#define GTP_MSG_SGSN_CNTXT_ACK 0x34
#define GTP_MSG_FORW_RELOC_REQ 0x35
#define GTP_MSG_FORW_RELOC_RESP 0x36
#define GTP_MSG_FORW_RELOC_COMP 0x37
#define GTP_MSG_RELOC_CANCEL_REQ 0x38
#define GTP_MSG_RELOC_CANCEL_RESP 0x39
#define GTP_MSG_FORW_SRNS_CNTXT 0x3A
#define GTP_MSG_FORW_RELOC_ACK 0x3B
#define GTP_MSG_FORW_SRNS_CNTXT_ACK 0x3C
#define GTP_MSG_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" },
{ GTP_MSG_DELETE_PDP_RESP, "Delete PDP context response" },
{ GTP_MSG_CREATE_AA_PDP_REQ, "Create AA PDP Context Request" },
{ GTP_MSG_CREATE_AA_PDP_RESP, "Create AA PDP Context Response" },
{ GTP_MSG_DELETE_AA_PDP_REQ, "Delete AA PDP Context Request" },
{ GTP_MSG_DELETE_AA_PDP_RESP, "Delete AA PDP Context Response" },
{ GTP_MSG_ERR_IND, "Error indication" },
{ GTP_MSG_PDU_NOTIFY_REQ, "PDU notification request" },
{ GTP_MSG_PDU_NOTIFY_RESP, "PDU notification response" },
{ GTP_MSG_PDU_NOTIFY_REJ_REQ, "PDU notification reject request" },
{ GTP_MSG_PDU_NOTIFY_REJ_RESP, "PDU notification reject response" },
{ GTP_MSG_SUPP_EXT_HDR, "Supported extension header notification" },
{ GTP_MSG_SEND_ROUT_INFO_REQ, "Send routing information for GPRS request" },
{ GTP_MSG_SEND_ROUT_INFO_RESP, "Send routing information for GPRS response" },
{ GTP_MSG_FAIL_REP_REQ, "Failure report request" },
{ GTP_MSG_FAIL_REP_RESP, "Failure report response" },
{ GTP_MSG_MS_PRESENT_REQ, "Note MS GPRS present request" },
{ GTP_MSG_MS_PRESENT_RESP, "Note MS GPRS present response" },
{ GTP_MSG_IDENT_REQ, "Identification request" },
{ GTP_MSG_IDENT_RESP, "Identification response" },
{ GTP_MSG_SGSN_CNTXT_REQ, "SGSN context request" },
{ GTP_MSG_SGSN_CNTXT_RESP, "SGSN context response" },
{ GTP_MSG_SGSN_CNTXT_ACK, "SGSN context acknowledgement" },
{ GTP_MSG_FORW_RELOC_REQ, "Forward relocation request" },
{ GTP_MSG_FORW_RELOC_RESP, "Forward relocation response" },
{ GTP_MSG_FORW_RELOC_COMP, "Forward relocation complete" },
{ GTP_MSG_RELOC_CANCEL_REQ, "Relocation cancel request" },
{ GTP_MSG_RELOC_CANCEL_RESP, "Relocation cancel response" },
{ GTP_MSG_FORW_SRNS_CNTXT, "Forward SRNS context" },
{ GTP_MSG_FORW_RELOC_ACK, "Forward relocation complete acknowledge" },
{ GTP_MSG_FORW_SRNS_CNTXT_ACK, "Forward SRNS context acknowledge" },
{ GTP_MSG_DATA_TRANSF_REQ, "Data record transfer request" },
{ GTP_MSG_DATA_TRANSF_RESP, "Data record transfer response" },
{ GTP_MSG_TPDU, "T-PDU" },
{ 0, NULL }
};
/* definitions of fields in extension header */
#define GTP_EXT_CAUSE 0x01
#define GTP_EXT_IMSI 0x02
#define GTP_EXT_RAI 0x03
#define GTP_EXT_TLLI 0x04
#define GTP_EXT_PTMSI 0x05
#define GTP_EXT_QOS_GPRS 0x06
#define GTP_EXT_REORDER 0x08
#define GTP_EXT_AUTH_TRI 0x09
#define GTP_EXT_MAP_CAUSE 0x0B
#define GTP_EXT_PTMSI_SIG 0x0C
#define GTP_EXT_MS_VALID 0x0D
#define GTP_EXT_RECOVER 0x0E
#define GTP_EXT_SEL_MODE 0x0F
#define GTP_EXT_16 0x10
#define GTP_EXT_FLOW_LABEL 0x10
#define GTP_EXT_TEID 0x10 /* 0xFF10 3G */
#define GTP_EXT_17 0x11
#define GTP_EXT_FLOW_SIG 0x11
#define GTP_EXT_TEID_CP 0x11 /* 0xFF11 3G */
#define GTP_EXT_18 0x12
#define GTP_EXT_FLOW_II 0x12
#define GTP_EXT_TEID_II 0x12 /* 0xFF12 3G*/
#define GTP_EXT_19 0x13
#define GTP_EXT_MS_REASON 0x13 /* same as 0x1D GTP3_EXT_MS_REASON */
#define GTP_EXT_TEAR_IND 0x13 /* 0xFF13 3G*/
#define GTP_EXT_NSAPI 0x14 /* 3G */
#define GTP_EXT_RANAP_CAUSE 0x15 /* 3G */
#define GTP_EXT_RAB_CNTXT 0x16 /* 3G */
#define GTP_EXT_RP_SMS 0x17 /* 3G */
#define GTP_EXT_RP 0x18 /* 3G */
#define GTP_EXT_PKT_FLOW_ID 0x19 /* 3G */
#define GTP_EXT_CHRG_CHAR 0x1A /* 3G */
#define GTP_EXT_TRACE_REF 0x1B /* 3G */
#define GTP_EXT_TRACE_TYPE 0x1C /* 3G */
#define GTP3_EXT_MS_REASON 0x1D /* 3G */
#define GTP_EXT_TR_COMM 0x7E /* charging */
#define GTP_EXT_CHRG_ID 0x7F
#define GTP_EXT_USER_ADDR 0x80
#define GTP_EXT_MM_CNTXT 0x81
#define GTP_EXT_PDP_CNTXT 0x82
#define GTP_EXT_APN 0x83
#define GTP_EXT_PROTO_CONF 0x84
#define GTP_EXT_GSN_ADDR 0x85
#define GTP_EXT_MSISDN 0x86
#define GTP_EXT_QOS_UMTS 0x87 /* 3G */
#define GTP_EXT_AUTH_QUI 0x88 /* 3G */
#define GTP_EXT_TFT 0x89 /* 3G */
#define GTP_EXT_TARGET_ID 0x8A /* 3G */
#define GTP_EXT_UTRAN_CONT 0x8B /* 3G */
#define GTP_EXT_RAB_SETUP 0x8C /* 3G */
#define GTP_EXT_HDR_LIST 0x8D /* 3G */
#define GTP_EXT_TRIGGER_ID 0x8E /* 3G */
#define GTP_EXT_OMC_ID 0x8F /* 3G */
#define GTP_EXT_REL_PACK 0xF9 /* charging */
#define GTP_EXT_CAN_PACK 0xFA /* charging */
#define GTP_EXT_CHRG_ADDR 0xFB
#define GTP_EXT_DATA_REQ 0xFC /* charging */
#define GTP_EXT_DATA_RESP 0xFD /* charging */
#define GTP_EXT_NODE_ADDR 0xFE /* charging */
#define GTP_EXT_PRIV_EXT 0xFF
static const value_string gtp_ext_val[] = {
{ GTP_EXT_CAUSE, "Cause of operation" },
{ GTP_EXT_IMSI, "IMSI " },
{ GTP_EXT_RAI, "Routing Area Identity" },
{ GTP_EXT_TLLI, "Temporary Logical Link Identity" },
{ GTP_EXT_PTMSI, "Packet TMSI" },
{ GTP_EXT_QOS_GPRS, "Quality of Service" },
{ GTP_EXT_REORDER, "Reorder required" },
{ GTP_EXT_AUTH_TRI, "Authentication triplets" },
{ GTP_EXT_MAP_CAUSE, "MAP cause" },
{ GTP_EXT_PTMSI_SIG, "P-TMSI signature" },
{ GTP_EXT_MS_VALID, "MS validated" },
{ GTP_EXT_RECOVER, "Recovery" },
{ GTP_EXT_SEL_MODE, "Selection mode" },
{ GTP_EXT_16, "Flow label data I" },
{ GTP_EXT_FLOW_LABEL, "Flow label data I" },
{ GTP_EXT_TEID, "Tunnel Endpoint Identifier Data I" }, /* 3G */
{ GTP_EXT_17, "Flow label signalling" },
{ GTP_EXT_FLOW_SIG, "Flow label signalling" },
{ GTP_EXT_TEID_CP, "Tunnel Endpoint Identifier Data Control Plane" }, /* 3G */
{ GTP_EXT_18, "Flow label data II" },
{ GTP_EXT_FLOW_II, "Flow label data II" },
{ GTP_EXT_TEID_II, "Tunnel Endpoint Identifier Data II" }, /* 3G */
{ GTP_EXT_19, "MS not reachable reason" },
{ GTP_EXT_MS_REASON, "MS not reachable reason" },
{ GTP_EXT_TEAR_IND, "Teardown ID" }, /* 3G */
{ GTP_EXT_NSAPI, "NSAPI" }, /* 3G */
{ GTP_EXT_RANAP_CAUSE, "RANAP cause" }, /* 3G */
{ GTP_EXT_RAB_CNTXT, "RAB context" }, /* 3G */
{ GTP_EXT_RP_SMS, "Radio Priority for MO SMS" }, /* 3G */
{ GTP_EXT_RP, "Radio Priority" }, /* 3G */
{ GTP_EXT_PKT_FLOW_ID, "Packet Flow ID " }, /* 3G */
{ GTP_EXT_CHRG_CHAR, "Charging characteristics" }, /* 3G */
{ GTP_EXT_TRACE_REF, "Trace references" }, /* 3G */
{ GTP_EXT_TRACE_TYPE, "Trace type" }, /* 3G */
{ GTP3_EXT_MS_REASON, "MS not reachable reason" }, /* 3G */
{ GTP_EXT_TR_COMM, "Packet transfer command" }, /* charging */
{ GTP_EXT_CHRG_ID, "Charging ID" },
{ GTP_EXT_USER_ADDR, "End user address " },
{ GTP_EXT_MM_CNTXT, "MM context" },
{ GTP_EXT_PDP_CNTXT, "PDP context" },
{ GTP_EXT_APN, "Access Point Name" },
{ GTP_EXT_PROTO_CONF, "Protocol configuration options" },
{ GTP_EXT_GSN_ADDR, "GSN address" },
{ GTP_EXT_MSISDN, "MS international PSTN/ISDN number" },
{ GTP_EXT_QOS_UMTS, "Quality of service (UMTS)" }, /* 3G */
{ GTP_EXT_AUTH_QUI, "Authentication quintuplets" }, /* 3G */
{ GTP_EXT_TFT, "Traffic Flow Template (TFT)" }, /* 3G */
{ GTP_EXT_TARGET_ID, "Target (RNC) identification" }, /* 3G */
{ GTP_EXT_UTRAN_CONT, "UTRAN transparent field" }, /* 3G */
{ GTP_EXT_RAB_SETUP, "RAB setup information" }, /* 3G */
{ GTP_EXT_HDR_LIST, "Extension Header Types List " }, /* 3G */
{ GTP_EXT_TRIGGER_ID, "Trigger Id " }, /* 3G */
{ GTP_EXT_OMC_ID, "OMC Identity " }, /* 3G */
{ GTP_EXT_REL_PACK, "Sequence numbers of released packets IE" }, /* charging */
{ GTP_EXT_CAN_PACK, "Sequence numbers of canceled packets IE" }, /* charging */
{ GTP_EXT_CHRG_ADDR, "Charging Gateway address" },
{ GTP_EXT_DATA_REQ, "Data record packet" }, /* charging */
{ GTP_EXT_DATA_RESP, "Requests responded" }, /* charging */
{ GTP_EXT_NODE_ADDR, "Address of recommended node" }, /* charging */
{ GTP_EXT_PRIV_EXT, "Private Extension " },
{ 0, NULL }
};
/* GPRS: 9.60 v7.6.0, page 37
* UMTS: 29.060 v4.0, page 45
*/
static const value_string cause_type[] = {
{ 0, "Request IMSI" },
{ 1, "Request IMEI" },
{ 2, "Request IMSI and IMEI" },
{ 3, "No identity needed" },
{ 4, "MS refuses" },
{ 5, "MS is not GPRS responding" },
{ 59, "System failure" }, /* charging */
{ 60, "The transmit buffers are becoming full" }, /* charging */
{ 61, "The receive buffers are becoming full" }, /* charging */
{ 62, "Another node is about to go down" }, /* charging */
{ 63, "This node is about to go down" }, /* charging */
{ 128, "Request accepted" },
{ 192, "Non-existent" },
{ 193, "Invalid message format" },
{ 194, "IMSI not known" },
{ 195, "MS is GPRS detached" },
{ 196, "MS is not GPRS responding" },
{ 197, "MS refuses" },
{ 198, "Version not supported" },
{ 199, "No resource available" },
{ 200, "Service not supported" },
{ 201, "Mandatory IE incorrect" },
{ 202, "Mandatory IE missing" },
{ 203, "Optional IE incorrect" },
{ 204, "System failure" },
{ 205, "Roaming restriction" },
{ 206, "P-TMSI signature mismatch" },
{ 207, "GPRS connection suspended" },
{ 208, "Authentication failure" },
{ 209, "User authentication failed" },
{ 210, "Context not found" },
{ 211, "All PDP dynamic addresses are occupied" },
{ 212, "No memory is available" },
{ 213, "Relocation failure" },
{ 214, "Unknown mandatory extension header" },
{ 215, "Semantic error in the TFT operation" },
{ 216, "Syntactic error in the TFT operation" },
{ 217, "Semantic errors in packet filter(s)" },
{ 218, "Syntactic errors in packet filter(s)" },
{ 219, "Missing or unknown APN" },
{ 220, "Unknown PDP address or PDP type" },
{ 252, "Request related to possibly duplicated packets already fulfilled" }, /* charging */
{ 253, "Request already fulfilled" }, /* charging */
{ 254, "Sequence numbers of released/cancelled packets IE incorrect" }, /* charging */
{ 255, "Request not fulfilled" }, /* charging */
{ 0, NULL }
};
/* GPRS: 9.02 v7.7.0
* UMTS: 29.002 v4.2.1, chapter 17.5, page 268
* TODO: Check if all map_cause values are included
*/
static const value_string map_cause_type[] = {
{ 1, "Unknown subscriber" },
{ 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" },
{ 0, NULL }
};
static const value_string gsn_addr_type[] = {
{ 0x00, "IPv4" },
{ 0x01, "IPv6" },
{ 0, NULL },
};
static const value_string pdp_type[] = {
{ 0x00, "X.25" },
{ 0x01, "PPP" },
{ 0x02, "OSP:IHOSS" },
{ 0x21, "IPv4" },
{ 0x57, "IPv6" },
{ 0, NULL }
};
static const value_string pdp_org_type[] = {
{ 0, "ETSI" },
{ 1, "IETF" },
{ 0, NULL }
};
static const value_string qos_delay_type[] = {
{ 0x00, "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" },
/* QoS Peak throughput classes from 0x0A to 0x0F (from 10 to 15) are subscribed */
{ 0x0A, "Reserved" },
{ 0x0B, "Reserved" },
{ 0x0C, "Reserved" },
{ 0x0D, "Reserved" },
{ 0x0E, "Reserved" },
{ 0x0F, "Reserved" },
{ 0, NULL }
};
static const value_string qos_precedence_type[] = {
{ 0x00, "Subscribed precedence (in MS to network direction)" },
{ 0x01, "High priority" },
{ 0x02, "Normal priority" },
{ 0x03, "Low priority" },
{ 0x07, "Reserved" },
{ 0, NULL }
};
static const value_string qos_mean_type[] = {
{ 0x00, "Subscribed mean throughput (in MS to network direction)" },
{ 0x01, "100 oct/h" }, /* Class 2 */
{ 0x02, "200 oct/h" }, /* Class 3 */
{ 0x03, "500 oct/h" }, /* Class 4 */
{ 0x04, "1 000 oct/h" }, /* Class 5 */
{ 0x05, "2 000 oct/h" }, /* Class 6 */
{ 0x06, "5 000 oct/h" }, /* Class 7 */
{ 0x07, "10 000 oct/h" }, /* Class 8 */
{ 0x08, "20 000 oct/h" }, /* Class 9 */
{ 0x09, "50 000 oct/h" }, /* Class 10 */
{ 0x0A, "100 000 oct/h" }, /* Class 11 */
{ 0x0B, "200 000 oct/h" }, /* Class 12 */
{ 0x0C, "500 000 oct/h" }, /* Class 13 */
{ 0x0D, "1 000 000 oct/h" }, /* Class 14 */
{ 0x0E, "2 000 000 oct/h" }, /* Class 15 */
{ 0x0F, "5 000 000 oct/h" }, /* Class 16 */
{ 0x10, "10 000 000 oct/h" }, /* Class 17 */
{ 0x11, "20 000 000 oct/h" }, /* Class 18 */
{ 0x12, "50 000 000 oct/h" }, /* Class 19 */
/* QoS Mean throughput classes from 0x13 to 0x1E (from 19 to 30) are subscribed */
{ 0x13, "Reserved" },
{ 0x14, "Reserved" },
{ 0x15, "Reserved" },
{ 0x16, "Reserved" },
{ 0x17, "Reserved" },
{ 0x18, "Reserved" },
{ 0x19, "Reserved" },
{ 0x1A, "Reserved" },
{ 0x1B, "Reserved" },
{ 0x1C, "Reserved" },
{ 0x1D, "Reserved" },
{ 0x1E, "Reserved" },
{ 0x1F, "Best effort" }, /* Class 1 */
{ 0, NULL }
};
static const value_string qos_del_err_sdu[] = {
{ 0x00, "Subscribed delivery of erroneous SDUs (in MS to network direction)" },
{ 0x01, "No detect ('-')" },
{ 0x02, "Erroneous SDUs are delivered ('yes')" },
{ 0x03, "Erroneous SDUs are not delivered ('no')" },
{ 0x07, "Reserved" }, /* All other values are reserved */
{ 0, NULL }
};
static const value_string qos_del_order[] = {
{ 0x00, "Subscribed delivery order (in MS to network direction)" },
{ 0x01, "With delivery order ('yes')" },
{ 0x02, "Without delivery order ('no')" },
{ 0x03, "Reserved" }, /* All other values are reserved */
{ 0, NULL }
};
static const value_string qos_traf_class[] = {
{ 0x00, "Subscribed traffic class (in MS to network direction)" },
{ 0x01, "Conversational class" },
{ 0x02, "Streaming class" },
{ 0x03, "Interactive class" },
{ 0x04, "Background class" },
{ 0x07, "Reserved" }, /* All other values are reserved */
{ 0, NULL }
};
static const value_string qos_max_sdu_size[] = {
{ 0x00, "Subscribed maximum SDU size (in MS to network direction" },
/* For values from 0x01 to 0x96 (from 1 to 150), use a granularity of 10 octets */
{ 0x97, "1502 octets" },
{ 0x98, "1510 octets" },
{ 0x99, "1520 octets" },
{ 0, NULL } /* All other values are reserved */
};
static const value_string qos_max_ul[] = {
{ 0x00, "Subscribed maximum bit rate for uplink (in MS to network direction)" },
/* For values from 0x01 to 0x3F (from 1 to 63), use a granularity of 1 kbps */
/* For values from 0x40 to 0x7F, value = 64 kbps + (value - 0x40) * 8 kbps */
/* For values from 0x80 to 0xFE, value = 576 kbps + (value - 0x80) * 64 kbps */
{ 0xFF, "0 kbps" },
{ 0, NULL }
};
static const value_string qos_max_dl[] = {
{ 0x00, "Subscribed maximum bit rate for downlink (in MS to network direction)" },
/* For values from 0x01 to 0x3F (from 1 to 63), use a granularity of 1 kbps */
/* For values from 0x40 to 0x7F, value = 64 kbps + (value - 0x40) * 8 kbps */
/* For values from 0x80 to 0xFE, value = 576 kbps + (value - 0x80) * 64 kbps */
{ 0xFF, "0 kbps" },
{ 0, NULL }
};
static const value_string qos_res_ber[] = {
{ 0x00, "Subscribed residual BER (in MS to network direction)" },
{ 0x01, "1/20 = 5x10^-2" },
{ 0x02, "1/100 = 1x10^-2" },
{ 0x03, "1/200 = 5x10^-3" },
{ 0x04, "1/250 = 4x10^-3" },
{ 0x05, "1/1 000 = 1x10^-3" },
{ 0x06, "1/10 000 = 1x10^-4" },
{ 0x07, "1/100 000 = 1x10^-5" },
{ 0x08, "1/1 000 000 = 1x10^-6" },
{ 0x09, "3/50 000 000 = 6x10^-8" },
{ 0x0F, "Reserved" }, /* All other values are reserved */
{ 0, NULL }
};
static const value_string qos_sdu_err_ratio[] = {
{ 0x00, "Subscribed SDU error ratio (in MS to network direction)" },
{ 0x01, "1/100 = 1x10^-2" },
{ 0x02, "7/1000 = 7x10^-3" },
{ 0x03, "1/1 000 = 1x10^-3" },
{ 0x04, "1/10 000 = 1x10^-4" },
{ 0x05, "1/100 000 = 1x10^-5" },
{ 0x06, "1/1 000 000 = 1x10^-6" },
{ 0x07, "1/10 = 1x10^-1" },
{ 0x0F, "Reserved" }, /* All other values are reserved */
{ 0, NULL }
};
static const value_string qos_traf_handl_priority[] = {
{ 0x00, "Subscribed traffic handling priority (in MS to network direction)" },
{ 0x01, "Priority level 1" },
{ 0x02, "Priority level 2" },
{ 0x03, "Priority level 3" },
{ 0, NULL }
};
static const value_string qos_trans_delay[] = {
{ 0x00, "Subscribed Transfer Delay (in MS to network direction)" },
{ 0x01, "10 ms" }, /* Using a granularity of 10 ms */
{ 0x02, "20 ms" },
{ 0x03, "30 ms" },
{ 0x04, "40 ms" },
{ 0x05, "50 ms" },
{ 0x06, "60 ms" },
{ 0x07, "70 ms" },
{ 0x08, "80 ms" },
{ 0x09, "90 ms" },
{ 0x0A, "100 ms" },
{ 0x0B, "110 ms" },
{ 0x0C, "120 ms" },
{ 0x0D, "130 ms" },
{ 0x0E, "140 ms" },
{ 0x0F, "150 ms" },
{ 0x10, "200 ms" }, /* (For values from 0x10 to 0x1F, value = 200 ms + (value - 0x10) * 50 ms */
{ 0x11, "250 ms" },
{ 0x12, "300 ms" },
{ 0x13, "350 ms" },
{ 0x14, "400 ms" },
{ 0x15, "450 ms" },
{ 0x16, "500 ms" },
{ 0x17, "550 ms" },
{ 0x18, "600 ms" },
{ 0x19, "650 ms" },
{ 0x1A, "700 ms" },
{ 0x1B, "750 ms" },
{ 0x1C, "800 ms" },
{ 0x1D, "850 ms" },
{ 0x1E, "900 ms" },
{ 0x1F, "950 ms" },
{ 0x20, "1000 ms" }, /* For values from 0x20 to 0x3E, value = 1000 ms + (value - 0x20) * 100 ms */
{ 0x21, "1100 ms" },
{ 0x22, "1200 ms" },
{ 0x23, "1300 ms" },
{ 0x24, "1400 ms" },
{ 0x25, "1500 ms" },
{ 0x26, "1600 ms" },
{ 0x27, "1700 ms" },
{ 0x28, "1800 ms" },
{ 0x29, "1900 ms" },
{ 0x2A, "2000 ms" },
{ 0x2B, "2100 ms" },
{ 0x2C, "2200 ms" },
{ 0x2D, "2300 ms" },
{ 0x2E, "2400 ms" },
{ 0x2F, "2500 ms" },
{ 0x30, "2600 ms" },
{ 0x31, "2700 ms" },
{ 0x32, "2800 ms" },
{ 0x33, "2900 ms" },
{ 0x34, "3000 ms" },
{ 0x35, "3100 ms" },
{ 0x36, "3200 ms" },
{ 0x37, "3300 ms" },
{ 0x38, "3400 ms" },
{ 0x39, "3500 ms" },
{ 0x3A, "3600 ms" },
{ 0x3B, "3700 ms" },
{ 0x3C, "3800 ms" },
{ 0x3D, "3900 ms" },
{ 0x3E, "4000 ms" },
{ 0x3F, "Reserved"},
{ 0, NULL }
};
static const value_string qos_guar_ul[] = {
{ 0x00, "Subscribed guaranteed bit rate for uplink (in MS to network direction)" },
/* For values from 0x01 to 0x3F (from 1 to 63), use a granularity of 1 kbps */
/* For values from 0x40 to 0x7F, value = 64 kbps + (value - 0x40) * 8 kbps */
/* For values from 0x80 to 0xFE, value = 576 kbps + (value - 0x80) * 64 kbps */
{ 0xFF, "0 kbps" },
{ 0, NULL }
};
static const value_string qos_guar_dl[] = {
{ 0x00, "Subscribed guaranteed bit rate for downlink (in MS to network direction)" },
/* For values from 0x01 to 0x3F (from 1 to 63), use a granularity of 1 kbps */
/* For values from 0x40 to 0x7F, value = 64 kbps + (value - 0x40) * 8 kbps */
/* For values from 0x80 to 0xFE, value = 576 kbps + (value - 0x80) * 64 kbps */
{ 0xFF, "0 kbps" },
{ 0, NULL }
};
static const value_string sel_mode_type[] = {
{ 0, "MS or network provided APN, subscriber verified" },
{ 1, "MS provided APN, subscription not verified" },
{ 2, "Network provided APN, subscription not verified" },
{ 3, "For future use (Network provided APN, subscription not verified" },/* Shall not be sent. If received, shall be sent as value 2 */
{ 0, NULL }
};
static const value_string tr_comm_type[] = {
{ 1, "Send data record packet" },
{ 2, "Send possibly duplicated data record packet" },
{ 3, "Cancel data record packet" },
{ 4, "Release data record packet"},
{ 0, NULL }
};
/* TODO: CHeck if all ms_reasons are included */
static const value_string ms_not_reachable_type[] = {
{ 0, "No paging response via the MSC" },
{ 1, "IMSI detached" },
{ 2, "Roaming restriction" },
{ 3, "Deregistered in the HLR for non GPRS" },
{ 4, "MS purge for non GPRS" },
{ 5, "No paging response via the SGSN" },
{ 6, "GPRS detached" },
{ 7, "Deregistered in the HLR for non GPRS" },
{ 8, "MS purged for GPRS" },
{ 9, "Unidentified subscriber via the MSC" },
{ 10, "Unidentified subscriber via the SGSN" },
{ 0, NULL }
};
/* UMTS: 25.413 v3.4.0, chapter 9.2.1.4, page 80
*/
static const value_string ranap_cause_type[] = {
/* Radio Network Layer Cause (1-->64) */
{ 1, "RAB preempted" },
{ 2, "Trelocoverall Expiry" },
{ 3, "Trelocprep Expiry" },
{ 4, "Treloccomplete Expiry" },
{ 5, "Tqueing Expiry" },
{ 6, "Relocation Triggered" },
{ 7, "TRELOCalloc Expiry" },
{ 8, "Unable to Estabish During Relocation" },
{ 9, "Unknown Target RNC" },
{ 10, "Relocation Cancelled" },
{ 11, "Successful Relocation" },
{ 12, "Requested Ciphering and/or Integrity Protection Algorithms not Supported" },
{ 13, "Change of Ciphering and/or Integrity Protection is not supported" },
{ 14, "Failure in the Radio Interface Procedure" },
{ 15, "Release due to UTRAN Generated Reason" },
{ 16, "User Inactivity" },
{ 17, "Time Critical Relocation" },
{ 18, "Requested Traffic Class not Available" },
{ 19, "Invalid RAB Parameters Value" },
{ 20, "Requested Maximum Bit Rate not Available" },
{ 21, "Requested Guaranteed Bit Rate not Available" },
{ 22, "Requested Transfer Delay not Achievable" },
{ 23, "Invalid RAB Parameters Combination" },
{ 24, "Condition Violation for SDU Parameters" },
{ 25, "Condition Violation for Traffic Handling Priority" },
{ 26, "Condition Violation for Guaranteed Bit Rate" },
{ 27, "User Plane Versions not Supported" },
{ 28, "Iu UP Failure" },
{ 29, "Relocation Failure in Target CN/RNC or Target System" },
{ 30, "Invalid RAB ID" },
{ 31, "No Remaining RAB" },
{ 32, "Interaction with other procedure" },
{ 33, "Requested Maximum Bit Rate for DL not Available" },
{ 34, "Requested Maximum Bit Rate for UL not Available" },
{ 35, "Requested Guaranteed Bit Rate for DL not Available" },
{ 36, "Requested Guaranteed Bit Rate for UL not Available" },
{ 37, "Repeated Integrity Checking Failure" },
{ 38, "Requested Report Type not supported" },
{ 39, "Request superseded" },
{ 40, "Release due to UE generated signalling connection release" },
{ 41, "Resource Optimisation Relocation" },
{ 42, "Requested Information Not Available" },
{ 43, "Relocation desirable for radio reasons" },
{ 44, "Relocation not supported in Target RNC or Target System" },
{ 45, "Directed Retry" },
{ 46, "Radio Connection With UE Lost" },
/* 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 }
};
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 }
};
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 }
};
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 }
};
static dissector_handle_t ip_handle;
static dissector_handle_t ppp_handle;
static int decode_gtp_cause (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_imsi (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_rai (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_tlli (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_ptmsi (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_qos_gprs (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_reorder (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_auth_tri (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_map_cause (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_ptmsi_sig (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_ms_valid (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_recover (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_sel_mode (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_16 (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_17 (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_18 (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_19 (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_nsapi (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_ranap_cause (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_rab_cntxt (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_rp_sms (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_rp (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_pkt_flow_id (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_chrg_char (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_trace_ref (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_trace_type (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_ms_reason (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_tr_comm (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_chrg_id (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_user_addr (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_mm_cntxt (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_pdp_cntxt (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_apn (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_gsn_addr (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_proto_conf (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_msisdn (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_qos_umts (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_auth_qui (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_tft (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_target_id (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_utran_cont (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_rab_setup (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_hdr_list (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_trigger_id (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_omc_id (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_chrg_addr (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_rel_pack (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_can_pack (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_data_req (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_data_resp (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_node_addr (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_priv_ext (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
static int decode_gtp_unknown (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
typedef struct _gtp_opt {
int optcode;
/* 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 },
{ GTP_EXT_QOS_GPRS, decode_gtp_qos_gprs },
{ GTP_EXT_REORDER, decode_gtp_reorder },
{ GTP_EXT_AUTH_TRI, decode_gtp_auth_tri },
{ GTP_EXT_MAP_CAUSE, decode_gtp_map_cause },
{ GTP_EXT_PTMSI_SIG, decode_gtp_ptmsi_sig },
{ GTP_EXT_MS_VALID, decode_gtp_ms_valid },
{ GTP_EXT_RECOVER, decode_gtp_recover },
{ GTP_EXT_SEL_MODE, decode_gtp_sel_mode },
{ GTP_EXT_16, decode_gtp_16 },
{ GTP_EXT_17, decode_gtp_17 },
{ GTP_EXT_18, decode_gtp_18 },
{ GTP_EXT_19, decode_gtp_19 },
{ GTP_EXT_NSAPI, decode_gtp_nsapi },
{ GTP_EXT_RANAP_CAUSE, decode_gtp_ranap_cause },
{ GTP_EXT_RAB_CNTXT, decode_gtp_rab_cntxt },
{ GTP_EXT_RP_SMS, decode_gtp_rp_sms },
{ GTP_EXT_RP, decode_gtp_rp },
{ GTP_EXT_PKT_FLOW_ID, decode_gtp_pkt_flow_id },
{ GTP_EXT_CHRG_CHAR, decode_gtp_chrg_char },
{ GTP_EXT_TRACE_REF, decode_gtp_trace_ref },
{ GTP_EXT_TRACE_TYPE, decode_gtp_trace_type },
{ GTP3_EXT_MS_REASON, decode_gtp_ms_reason },
{ GTP_EXT_TR_COMM, decode_gtp_tr_comm },
{ GTP_EXT_CHRG_ID, decode_gtp_chrg_id },
{ GTP_EXT_USER_ADDR, decode_gtp_user_addr },
{ GTP_EXT_MM_CNTXT, decode_gtp_mm_cntxt },
{ GTP_EXT_PDP_CNTXT, decode_gtp_pdp_cntxt },
{ GTP_EXT_APN, decode_gtp_apn },
{ GTP_EXT_PROTO_CONF, decode_gtp_proto_conf },
{ GTP_EXT_GSN_ADDR, decode_gtp_gsn_addr },
{ GTP_EXT_MSISDN, decode_gtp_msisdn },
{ GTP_EXT_QOS_UMTS, decode_gtp_qos_umts }, /* 3G */
{ GTP_EXT_AUTH_QUI, decode_gtp_auth_qui }, /* 3G */
{ GTP_EXT_TFT, decode_gtp_tft }, /* 3G */
{ GTP_EXT_TARGET_ID, decode_gtp_target_id }, /* 3G */
{ GTP_EXT_UTRAN_CONT, decode_gtp_utran_cont }, /* 3G */
{ GTP_EXT_RAB_SETUP, decode_gtp_rab_setup }, /* 3G */
{ GTP_EXT_HDR_LIST, decode_gtp_hdr_list }, /* 3G */
{ GTP_EXT_TRIGGER_ID, decode_gtp_trigger_id }, /* 3G */
{ GTP_EXT_OMC_ID, decode_gtp_omc_id }, /* 3G */
{ 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 }
};
typedef struct {
guint8 flags;
guint8 message;
guint16 length;
guint16 seq_no;
guint16 flow_label;
guint8 sndcp_no;
guint8 spare[3];
guint8 tid[8];
} _gtp_hdr;
typedef struct {
guint8 flags;
guint8 message;
guint16 length;
guint32 teid;
} _gtp3_hdr;
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;
} 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;
guint16 ci;
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];
guint32 sgsnaddr;
guint8 msclass_not_used[12];
guint8 msclass_caplen;
guint8 msclass_cap[3];
guint8 serv_centr[9];
guint8 rec_ent[9];
guint16 lac;
guint8 rac;
guint16 ci;
guint8 timestamp[8];
guint8 messref;
guint16 smsres;
} socdr;
struct _stcdr { /* STCDR 79B */
guint16 len;
guint8 imsilen;
guint8 imsi[8];
guint8 imei[8];
guint8 msisdnlen;
guint8 msisdn[10];
guint32 sgsnaddr;
guint8 msclass_not_used[12];
guint8 msclass_caplen;
guint8 msclass_cap[3];
guint8 serv_centr[9];
guint8 rec_ent[9];
guint16 lac;
guint8 rac;
guint16 ci;
guint8 timestamp[8];
guint16 smsres;
} stcdr;
guint8 gtp_version = 0;
char *yesno[] = { "False", "True" };
static void
col_append_str_gtp(frame_data *fd, gint el, gchar *proto_name) {
int i;
int max_len;
gchar _tmp[COL_MAX_LEN];
max_len = COL_MAX_LEN;
for (i = 0; i < fd->cinfo->num_cols; i++) {
if (fd->cinfo->fmt_matx[i][el]) {
if (fd->cinfo->col_data[i] != fd->cinfo->col_buf[i]) {
strncpy(fd->cinfo->col_buf[i], fd->cinfo->col_data[i], max_len);
fd->cinfo->col_buf[i][max_len - 1] = '\0';
}
_tmp[0] = '\0';
strcat(_tmp, proto_name);
strcat(_tmp, " <");
strcat(_tmp, fd->cinfo->col_buf[i]);
strcat(_tmp, ">");
fd->cinfo->col_buf[i][0] = '\0';
strcat(fd->cinfo->col_buf[i], _tmp);
fd->cinfo->col_data[i] = fd->cinfo->col_buf[i];
}
}
}
static gchar *
id_to_str(const guint8 *ad) {
static gchar *str[17];
gchar *p;
guint8 octet, i;
static const gchar hex_digits[16] = "0123456789abcdef";
p = (gchar *)&str[17];
*--p = '\0';
i = 7;
for (;;) {
octet = ad[i];
*--p = hex_digits[(octet >> 4) & 0xF];
*--p = hex_digits[octet&0xF];
if (i == 0) break;
i--;
}
return p;
}
static gchar *
msisdn_to_str(const guint8 *ad, int len) {
static gchar *str[17];
gchar *p;
guint8 octet, i;
static const gchar hex_digits[16] = "0123456789 ";
p = (gchar *)&str[0];
*p = '+';
i = 1;
for (;;) {
octet = ad[i];
*++p = hex_digits[octet&0xF];
*++p = hex_digits[(octet >> 4) &0xF];
if (i == len-1) break;
i++;
}
*++p = '\0';
return (gchar *)&str[0];
}
gchar *
time_int_to_str (guint32 time)
{
guint hours, mins, secs, month, days;
guint mths_n[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
guint mths_s[12] = {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
static gchar *cur, *p, str[3][2+1+2+1+2+1+4+1+2+1+2+2];
if (cur == &str[0][0]) {
cur = &str[1][0];
} else if (cur == &str[1][0]) {
cur = &str[2][0];
} else {
cur = &str[0][0];
}
if (time == 0) {
sprintf (cur, "00:00:00 1970-01-01");
return cur;
}
secs = time % 60;
time /= 60;
mins = time % 60;
time /= 60;
hours = time % 24;
time /= 24;
days = time % 366;
time /= 366;
days += time - (time + 2) / 4;
if ((time + 2) % 4) {
for (month=0; month<12; month++) if (days > mths_n[month]) days -= mths_n[month];
else break;
} else {
for (month=0; month<12; month++)
if (days > mths_s[month]) days -= mths_s[month];
else break;
}
month++;
days++;
time += 1970;
p = cur;
sprintf (p, "%02d:%02d:%02d %u-%02d-%02d", hours, mins, secs, time, month, days);
return cur;
}
/* Next definitions and function check_field_presence checks if given field
* in GTP packet is compliant with ETSI
*/
typedef struct _ext_header {
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[] = {
{ /* checkec */
GTP_MSG_ECHO_REQ, {
{ GTP_EXT_PRIV_EXT, OPTIONAL },
{ 0, 0 }
}
},
{ /* checked */
GTP_MSG_ECHO_RESP, {
{ GTP_EXT_RECOVER, MANDATORY },
{ GTP_EXT_PRIV_EXT, OPTIONAL },
{ 0, 0 }
}
},
{ /* checked */
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 }
}
},
{ /* checked */
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 }
}
},
{ /* checked */
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 }
}
},
{ /* checked */
GTP_MSG_DELETE_PDP_REQ, {
{ GTP_EXT_TEAR_IND, CONDITIONAL },
{ GTP_EXT_NSAPI, MANDATORY },
{ GTP_EXT_PRIV_EXT, OPTIONAL },
{ 0, 0 }
}
},
{ /* checked */
GTP_MSG_DELETE_PDP_RESP, {
{ GTP_EXT_CAUSE, MANDATORY },
{ GTP_EXT_PRIV_EXT, OPTIONAL },
{ 0, 0 }
}
},
{ /* checked */
GTP_MSG_ERR_IND, {
{ GTP_EXT_TEID, MANDATORY },
{ GTP_EXT_PRIV_EXT, OPTIONAL },
{ 0, 0 }
}
},
{ /* checked */
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 }
}
},
{ /* checked */
GTP_MSG_PDU_NOTIFY_RESP, {
{ GTP_EXT_CAUSE, MANDATORY },
{ GTP_EXT_PRIV_EXT, OPTIONAL },
{ 0, 0 }
}
},
{ /* checked */
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 }
}
},
{ /* checked */
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 }
}
},
{ /* checked */
GTP_MSG_SEND_ROUT_INFO_REQ, {
{ GTP_EXT_IMSI, MANDATORY },
{ GTP_EXT_PRIV_EXT, OPTIONAL },
{ 0, 0 }
}
},
{ /* checked */
GTP_MSG_SEND_ROUT_INFO_RESP, {
{ GTP_EXT_CAUSE, MANDATORY },
{ GTP_EXT_IMSI, MANDATORY },
{ GTP_EXT_MAP_CAUSE, OPTIONAL },
{ GTP3_EXT_MS_REASON, OPTIONAL },
{ GTP_EXT_GSN_ADDR, OPTIONAL },
{ GTP_EXT_PRIV_EXT, OPTIONAL },
{ 0, 0 }
}
},
{ /* checked */
GTP_MSG_FAIL_REP_REQ, {
{ GTP_EXT_IMSI, MANDATORY },
{ GTP_EXT_PRIV_EXT, OPTIONAL },
{ 0, 0 }
}
},
{ /* checked */
GTP_MSG_FAIL_REP_RESP, {
{ GTP_EXT_CAUSE, MANDATORY },
{ GTP_EXT_MAP_CAUSE, OPTIONAL },
{ GTP_EXT_PRIV_EXT, OPTIONAL },
{ 0, 0 }
}
},
{ /* checked */
GTP_MSG_MS_PRESENT_REQ, {
{ GTP_EXT_IMSI, MANDATORY },
{ GTP_EXT_GSN_ADDR, MANDATORY },
{ GTP_EXT_PRIV_EXT, OPTIONAL },
{ 0, 0 }
}
},
{ /* checked */
GTP_MSG_MS_PRESENT_RESP, {
{ GTP_EXT_CAUSE, MANDATORY },
{ GTP_EXT_PRIV_EXT, OPTIONAL },
{ 0, 0 }
}
},
{ /* checked */
GTP_MSG_IDENT_REQ, {
{ GTP_EXT_RAI, MANDATORY },
{ GTP_EXT_PTMSI, MANDATORY },
{ GTP_EXT_PTMSI_SIG, CONDITIONAL },
{ GTP_EXT_PRIV_EXT, OPTIONAL },
{ 0, 0 }
}
},
{ /* checked */
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 }
}
},
{ /* checked */
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 }
}
},
{ /* checked */
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 }
}
},
{ /* checked */
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 }
}
},
{ /* checked */
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 }
}
},
{ /* checked */
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 }
}
},
{ /* checked */
GTP_MSG_RELOC_CANCEL_REQ, {
{ GTP_EXT_IMSI, MANDATORY },
{ GTP_EXT_PRIV_EXT, OPTIONAL },
{ 0, 0 }
}
},
{ /* checked */
GTP_MSG_RELOC_CANCEL_RESP, {
{ GTP_EXT_CAUSE, MANDATORY },
{ GTP_EXT_PRIV_EXT, OPTIONAL },
{ 0, 0 }
}
},
{ /* checked */
GTP_MSG_FORW_RELOC_ACK, {
{ GTP_EXT_CAUSE, MANDATORY },
{ GTP_EXT_PRIV_EXT, OPTIONAL },
{ 0, 0 }
}
},
{ /* checked */
GTP_MSG_FORW_SRNS_CNTXT, {
{ GTP_EXT_RAB_CNTXT, MANDATORY },
{ GTP_EXT_PRIV_EXT, OPTIONAL },
{ 0, 0 }
}
},
{ /* checked */
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) {
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;
}
/* Decoders of fields in extension headers, each function returns no of bytes from field */
/* GPRS: 9.60 v7.6.0, chapter
* UMTS: 29.060 v4.0, chapter
*/
static int
decode_gtp_cause(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint8 cause;
cause = tvb_get_guint8(tvb, offset+1);
proto_tree_add_uint(tree, hf_gtp_ext_cause, tvb, offset, 2, cause);
return 2;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.2
* UMTS: 29.060 v4.0, chapter 7.7.2
*/
static int
decode_gtp_imsi(tvbuff_t *tvb, int offset, packet_info *pinfo, 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);
proto_tree_add_string(tree, hf_gtp_ext_imsi, tvb, offset, 9, tid_str);
return 9;
}
/* 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) ?
*/
static int
decode_gtp_rai(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
proto_tree *ext_tree_rai;
proto_item *te;
te = proto_tree_add_text(tree, tvb, offset, 1, val_to_str(GTP_EXT_RAI, gtp_ext_val, "Unknown message"));
ext_tree_rai = proto_item_add_subtree(te, ett_gtp_ext_rai);
proto_tree_add_uint(ext_tree_rai, hf_gtp_ext_rai_mcc, tvb, offset+1, 2, tvb_get_letohs(tvb, offset+1) & 0xFF0F);
proto_tree_add_uint(ext_tree_rai, hf_gtp_ext_rai_mnc, tvb, offset+2, 2, tvb_get_ntohs(tvb, offset+3) & 0xF0FF);
proto_tree_add_uint(ext_tree_rai, hf_gtp_ext_rai_lac, tvb, offset+4, 2, tvb_get_letohs(tvb, offset+4));
proto_tree_add_uint(ext_tree_rai, hf_gtp_ext_rai_rac, tvb, offset+6, 1, tvb_get_guint8(tvb, offset+6));
return 7;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.4, page 39
* UMTS: 29.060 v4.0, chapter 7.7.4, page 47
*/
static int
decode_gtp_tlli(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint32 tlli;
tlli = tvb_get_ntohl(tvb, offset+1);
proto_tree_add_uint(tree, hf_gtp_ext_tlli, tvb, offset, 5, tlli);
return 5;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.5, page 39
* UMTS: 29.060 v4.0, chapter 7.7.5, page 47
*/
static int
decode_gtp_ptmsi(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint32 ptmsi;
ptmsi = tvb_get_ntohl(tvb, offset);
proto_tree_add_uint(tree, hf_gtp_ext_ptmsi, tvb, offset, 5, ptmsi);
return 5;
}
/* adjust - how many bytes before offset should be highlighted
*/
static int
decode_qos_gprs(tvbuff_t *tvb, int offset, proto_tree *tree, gchar* qos_str, guint8 adjust) {
guint8 spare1, delay, reliability, peak, spare2, precedence, spare3, mean;
proto_tree *ext_tree_qos;
proto_item *te;
spare1 = tvb_get_guint8(tvb, offset) & 0xC0;
delay = tvb_get_guint8(tvb, offset) & 0x38;
reliability = tvb_get_guint8(tvb, offset) & 0x07;
peak = tvb_get_guint8(tvb, offset+1) & 0xF0;
spare2 = tvb_get_guint8(tvb, offset+1) & 0x08;
precedence = tvb_get_guint8(tvb, offset+1) & 0x07;
spare3 = tvb_get_guint8(tvb, offset+2) & 0xE0;
mean = tvb_get_guint8(tvb, offset+2) & 0x1F;
te = proto_tree_add_text(tree, tvb, offset-adjust, 3+adjust, "%s: delay: %u, reliability: %u, peak: %u, precedence: %u, mean: %u",
qos_str, delay, reliability, peak, precedence, mean);
ext_tree_qos = proto_item_add_subtree(te, ett_gtp_ext_qos);
if (adjust != 0) {
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_spare1, tvb, offset, 1, spare1);
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_delay, tvb, offset, 1, delay);
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_reliability, tvb, offset, 1, reliability);
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_peak, tvb, offset+1, 1, peak);
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_spare2, tvb, offset+1, 1, spare2);
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_precedence, tvb, offset+1, 1, precedence);
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_spare3, tvb, offset+2, 1, spare3);
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_mean, tvb, offset+2, 1, mean);
}
return 3;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.6, page 39
* 4.08
* 3.60
* UMTS: not present
* TODO: check if length is included: ETSI 4.08 vs 9.60
*/
static int
decode_gtp_qos_gprs(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
return (1+decode_qos_gprs(tvb, offset+1, tree, "Quality of Service", 1));
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.7, page 39
* UMTS: 29.060 v4.0, chapter 7.7.6, page 47
*/
static int
decode_gtp_reorder(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint8 reorder;
reorder = tvb_get_guint8(tvb, offset+1) & 0x01;
proto_tree_add_boolean(tree, hf_gtp_ext_reorder, tvb, offset, 2, reorder);
return 2;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.8, page 40
* 4.08 v7.1.2, chapter 10.5.3.1+
* UMTS: 29.060 v4.0, chapter 7.7.7
* TODO: Add blurb support by registering items in the protocol registration
*/
static int
decode_gtp_auth_tri(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
proto_tree *ext_tree_auth_tri;
proto_item *te;
guint32 rand[4], sres, kc[2];
tvb_memcpy(tvb, (guint8 *)&rand, offset+1, 16);
sres = tvb_get_ntohl(tvb, offset+17);
tvb_memcpy(tvb, (guint8 *)&kc, offset+21, 16);
te = proto_tree_add_text(tree, tvb, offset, 29, val_to_str(GTP_EXT_AUTH_TRI, gtp_ext_val, "Unknown message"));
ext_tree_auth_tri = proto_item_add_subtree(tree, ett_gtp_ext_auth_tri);
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]);
return 1+16+4+8;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.9, page 40
* 9.02 v7.7.0, page 1090
* UMTS: 29.060 v4.0, chapter 7.7.8, page 48
* 29.002 v4.2.1, chapter 17.5, page 268
*/
static int
decode_gtp_map_cause(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint8 map_cause;
map_cause = tvb_get_guint8(tvb, offset+1);
proto_tree_add_uint(tree, hf_gtp_ext_map_cause, tvb, offset, 2, map_cause);
return 2;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.10, page 41
* UMTS: 29.060 v4.0, chapter 7.7.9, page 48
*/
static int
decode_gtp_ptmsi_sig(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint32 ptmsi_sig;
ptmsi_sig = tvb_get_ntoh24(tvb, offset+1);
proto_tree_add_uint(tree, hf_gtp_ext_ptmsi_sig, tvb, offset, 4, ptmsi_sig);
return 4;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.11, page 41
* UMTS: 29.060 v4.0, chapter 7.7.10, page 49
*/
static int
decode_gtp_ms_valid(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint8 ms_valid;
ms_valid = tvb_get_guint8(tvb, offset+1) & 0x01;
proto_tree_add_boolean(tree, hf_gtp_ext_ms_valid, tvb, offset, 2, ms_valid);
return 2;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.12, page 41
* UMTS: 29.060 v4.0, chapter 7.7.11, page 49
*/
static int
decode_gtp_recover(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint8 recover;
recover = tvb_get_guint8(tvb, offset+1);
proto_tree_add_uint(tree, hf_gtp_ext_recover, tvb, offset, 2, recover);
return 2;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.13, page 42
* UMTS: 29.060 v4.0, chapter 7.7.12, page 49
*/
static 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;
proto_tree_add_uint(tree, hf_gtp_ext_sel_mode, tvb, offset, 2, sel_mode);
return 2;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.14, page 42
* UMTS: 29.060 v4.0, chapter 7.7.13, page 50
*/
static int
decode_gtp_16(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint16 flow_label;
guint32 teid_data;
switch (gtp_version) {
case 0:
flow_label = tvb_get_ntohs(tvb, offset+1);
proto_tree_add_uint(tree, hf_gtp_ext_flow_label, tvb, offset, 3, flow_label);
return 3;
case 1:
teid_data = tvb_get_ntohl(tvb, offset+1);
proto_tree_add_uint(tree, hf_gtp3_ext_teid_data, tvb, offset, 5, teid_data);
return 5;
default:
proto_tree_add_text(tree, tvb, offset, 1, "Flow label/TEID Data I : GTP version not supported");
return 3;
}
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.15, page 42
* UMTS: 29.060 v4.0, chapter 7.7.14, page 42
*/
static int
decode_gtp_17(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint16 flow_sig;
guint32 teid_cp;
switch (gtp_version) {
case 0:
flow_sig = tvb_get_ntohs(tvb, offset+1);
proto_tree_add_uint(tree, hf_gtp_ext_flow_sig, tvb, offset, 3, flow_sig);
return 3;
case 1:
teid_cp = tvb_get_ntohl(tvb, offset+1);
proto_tree_add_uint(tree, hf_gtp3_ext_teid_cp, tvb, offset, 5, teid_cp);
return 5;
default:
proto_tree_add_text(tree, tvb, offset, 1, "Flow label signalling/TEID control plane : GTP version not supported");
return 3;
}
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.16, page 42
* UMTS: 29.060 v4.0, chapter 7.7.15, page 51
*/
static int
decode_gtp_18(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint16 flow_ii;
guint32 teid_ii;
proto_tree *ext_tree_flow_ii;
proto_item *te;
switch (gtp_version) {
case 0:
te = proto_tree_add_text(tree, tvb, offset, 4, val_to_str(GTP_EXT_FLOW_II, gtp_ext_val, "Unknown message"));
ext_tree_flow_ii = proto_item_add_subtree(te, ett_gtp_ext_flow_ii);
proto_tree_add_text(ext_tree_flow_ii, tvb, offset+1, 1, "NSAPI : %x", tvb_get_guint8(tvb, offset+1) & 0x0F);
flow_ii = tvb_get_ntohs(tvb, offset+2);
proto_tree_add_uint(ext_tree_flow_ii, hf_gtp_ext_flow_ii, tvb, offset+2, 2, flow_ii);
return 4;
case 1:
te = proto_tree_add_text(tree, tvb, offset, 6, val_to_str(GTP_EXT_TEID_II, gtp_ext_val, "Unknown message"));
ext_tree_flow_ii = proto_item_add_subtree(te, ett_gtp_ext_flow_ii);
proto_tree_add_uint(ext_tree_flow_ii, hf_gtp_ext_nsapi, tvb, offset+1, 1, tvb_get_guint8(tvb, offset+1) & 0x0F);
teid_ii = tvb_get_ntohl(tvb, offset+2);
proto_tree_add_uint(ext_tree_flow_ii, hf_gtp3_ext_teid_ii, tvb, offset+2, 4, teid_ii);
return 6;
default:
proto_tree_add_text(tree, tvb, offset, 1, "Flow data II/TEID Data II : GTP Version not supported");
return 4;
}
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.16A, page 43
* UMTS: 29.060 v4.0, chapter 7.7.16, page 51
* Check if all ms_reason types are included
*/
static int
decode_gtp_19(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint8 field19;
field19 = tvb_get_guint8(tvb, offset+1);
switch (gtp_version) {
case 0:
proto_tree_add_uint(tree, hf_gtp_ext_ms_reason, tvb, offset, 2, field19);
break;
case 1:
proto_tree_add_boolean(tree, hf_gtp3_ext_tear_ind, tvb, offset, 2, field19 & 0x01);
break;
default:
proto_tree_add_text(tree, tvb, offset, 1, "Information Element Type = 19 : GTP Version not supported");
break;
}
return 2;
}
/* GPRS: not present
* UMTS: 29.060 v4.0, chapter 7.7.17, page 51
*/
static int
decode_gtp_nsapi(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint8 nsapi;
nsapi = tvb_get_guint8(tvb, offset+1) & 0x0F;
proto_tree_add_uint(tree, hf_gtp_ext_nsapi, tvb, offset, 2, nsapi);
return 2;
}
/* GPRS: not present
* UMTS: 29.060 v4.0, chapter 7.7.18, page 52
*/
static int
decode_gtp_ranap_cause(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint8 ranap;
ranap = tvb_get_guint8(tvb, offset+1);
if(ranap > 0 && ranap <=64)
proto_tree_add_uint_format(tree, hf_gtp3_ext_ranap_cause, tvb, offset, 2, ranap, "%s (Radio Network Layer Cause) : %s (%u)", val_to_str(GTP_EXT_RANAP_CAUSE, gtp_ext_val, "Unknown"), val_to_str(ranap, ranap_cause_type, "Unknown RANAP Cause"), ranap);
if(ranap > 64 && ranap <=80)
proto_tree_add_uint_format(tree, hf_gtp3_ext_ranap_cause, tvb, offset, 2, ranap, "%s (Transport Layer Cause) : %s (%u)", val_to_str(GTP_EXT_RANAP_CAUSE, gtp_ext_val, "Unknown"), val_to_str(ranap, ranap_cause_type, "Unknown RANAP Cause"), ranap);
if(ranap > 80 && ranap <=96)
proto_tree_add_uint_format(tree, hf_gtp3_ext_ranap_cause, tvb, offset, 2, ranap, "%s (NAS Cause) : %s (%u)", val_to_str(GTP_EXT_RANAP_CAUSE, gtp_ext_val, "Unknown"), val_to_str(ranap, ranap_cause_type, "Unknown RANAP Cause"), ranap);
if(ranap > 96 && ranap <=112)
proto_tree_add_uint_format(tree, hf_gtp3_ext_ranap_cause, tvb, offset, 2, ranap, "%s (Protocol Cause) : %s (%u)", val_to_str(GTP_EXT_RANAP_CAUSE, gtp_ext_val, "Unknown"), val_to_str(ranap, ranap_cause_type, "Unknown RANAP Cause"), ranap);
if(ranap > 112 && ranap <=128)
proto_tree_add_uint_format(tree, hf_gtp3_ext_ranap_cause, tvb, offset, 2, ranap, "%s (Miscellaneous Cause) : %s (%u)", val_to_str(GTP_EXT_RANAP_CAUSE, gtp_ext_val, "Unknown"), val_to_str(ranap, ranap_cause_type, "Unknown RANAP Cause"), ranap);
if(ranap > 128 && ranap <=255)
proto_tree_add_uint_format(tree, hf_gtp3_ext_ranap_cause, tvb, offset, 2, ranap, "%s (Non-standard Cause) : %s (%u)", val_to_str(GTP_EXT_RANAP_CAUSE, gtp_ext_val, "Unknown"), val_to_str(ranap, ranap_cause_type, "Unknown RANAP Cause"), ranap);
return 2;
}
/* GPRS: not present
* UMTS: 29.060 v4.0, chapter 7.7.19, page 52
*/
static int
decode_gtp_rab_cntxt(tvbuff_t *tvb, int offset, packet_info *pinfo, 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;
te = proto_tree_add_text(tree, tvb, offset, 8, val_to_str(GTP_EXT_RAB_CNTXT, gtp_ext_val, "Unknown message"));
ext_tree_rab_cntxt = proto_item_add_subtree(te, ett_gtp_ext_rab_cntxt);
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);
proto_tree_add_uint(ext_tree_rab_cntxt, hf_gtp_ext_nsapi, tvb, offset+1, 1, nsapi);
proto_tree_add_text(ext_tree_rab_cntxt, tvb, offset+2, 2, "Downlink GTP-U sequence number: %x", dl_gtpu_seq);
proto_tree_add_text(ext_tree_rab_cntxt, tvb, offset+4, 2, "Uplink GTP-U sequence number : %x", ul_gtpu_seq);
proto_tree_add_text(ext_tree_rab_cntxt, tvb, offset+6, 1, "Downlink next PDCP-PDU seq number : %x", dl_pdcp_seq);
proto_tree_add_text(ext_tree_rab_cntxt, tvb, offset+7, 1, "Uplink next PDCP-PDU seq number : %x", ul_pdcp_seq);
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;
proto_tree_add_uint(tree, hf_gtp3_ext_rp_sms, tvb, offset, 2, rp_sms);
return 2;
}
/* GPRS: not present
* UMTS: 29.060 v4.0, chapter 7.7.21, page 53
*/
static int
decode_gtp_rp(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
proto_tree *ext_tree_rp;
proto_item *te;
guint8 nsapi, rp, spare;
nsapi = tvb_get_guint8(tvb, offset+1) & 0xF0;
spare = tvb_get_guint8(tvb, offset+1) & 0x08;
rp = tvb_get_guint8(tvb, offset+1) & 0x07;
te = proto_tree_add_uint_format(tree, hf_gtp3_ext_rp, tvb, offset, 2, rp, "Radio Priority for NSAPI(%u) : %u", nsapi, rp);
ext_tree_rp = proto_item_add_subtree(tree, ett_gtp_ext_rp);
proto_tree_add_uint(ext_tree_rp, hf_gtp3_ext_rp_nsapi, tvb, offset+1, 1, nsapi);
proto_tree_add_uint(ext_tree_rp, hf_gtp3_ext_rp_spare, tvb, offset+1, 1, spare);
proto_tree_add_uint(ext_tree_rp, hf_gtp3_ext_rp, tvb, offset+1, 1, rp);
return 2;
}
/* GPRS: not present
* UMTS: 29.060 v4.0, chapter 7.7.22, page 53
*/
static int
decode_gtp_pkt_flow_id(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
proto_tree *ext_tree_pkt_flow_id;
proto_item *te;
guint8 nsapi, pkt_flow_id;
nsapi = tvb_get_guint8(tvb, offset+1) & 0x0F;
pkt_flow_id = tvb_get_guint8(tvb, offset+2);
te = proto_tree_add_uint_format(tree, hf_gtp3_ext_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_ext_pkt_flow_id);
proto_tree_add_uint(ext_tree_pkt_flow_id, hf_gtp_ext_nsapi, tvb, offset+1, 1, nsapi);
proto_tree_add_uint_format(ext_tree_pkt_flow_id, hf_gtp3_ext_pkt_flow_id, tvb, offset+2, 1, pkt_flow_id, "%s : %u", val_to_str(GTP_EXT_PKT_FLOW_ID, gtp_ext_val, "Unknown message"), pkt_flow_id);
return 3;
}
/* GPRS: not present
* UMTS: 29.060 v4.0, chapter 7.7.23, page 53
* TODO: Differenciate these uints?
*/
static int
decode_gtp_chrg_char(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint16 chrg_char;
proto_item *te;
proto_tree *ext_tree_chrg_char;
chrg_char = tvb_get_ntohs(tvb, offset+1);
te = proto_tree_add_text(tree, tvb, offset, 3, "%s: %x", val_to_str(GTP_EXT_CHRG_CHAR, gtp_ext_val, "Unknown message"), chrg_char);
ext_tree_chrg_char = proto_item_add_subtree(te, ett_gtp_ext_chrg_char);
proto_tree_add_uint(ext_tree_chrg_char, hf_gtp3_ext_chrg_char_s, tvb, offset+1, 2, chrg_char);
proto_tree_add_uint(ext_tree_chrg_char, hf_gtp3_ext_chrg_char_n, tvb, offset+1, 2, chrg_char);
proto_tree_add_uint(ext_tree_chrg_char, hf_gtp3_ext_chrg_char_p, tvb, offset+1, 2, chrg_char);
proto_tree_add_uint(ext_tree_chrg_char, hf_gtp3_ext_chrg_char_f, tvb, offset+1, 2, chrg_char);
proto_tree_add_uint(ext_tree_chrg_char, hf_gtp3_ext_chrg_char_h, tvb, offset+1, 2, chrg_char);
proto_tree_add_uint(ext_tree_chrg_char, hf_gtp3_ext_chrg_char_r, tvb, offset+1, 2, chrg_char);
return 3;
}
/* GPRS: not present
* UMTS: 29.060 v4.0, chapter 7.7.24, page
*/
static int
decode_gtp_trace_ref(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint16 trace_ref;
trace_ref = tvb_get_ntohs(tvb, offset+1);
proto_tree_add_uint(tree, hf_gtp3_ext_trace_ref, tvb, offset, 3, trace_ref);
return 3;
}
/* GPRS: not present
* UMTS: 29.060 v4.0, chapter 7.7.25, page
*/
static int
decode_gtp_trace_type(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint16 trace_type;
trace_type = tvb_get_ntohs(tvb, offset+1);
proto_tree_add_uint(tree, hf_gtp3_ext_trace_type, tvb, offset, 3, trace_type);
return 3;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.16A
* UMTS: 29.060 v4.0, chapter 7.7.25A, page
*/
static int
decode_gtp_ms_reason(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint8 reason;
reason = tvb_get_guint8(tvb, offset+1);
proto_tree_add_uint(tree, hf_gtp3_ext_ms_reason, tvb, offset, 2, reason);
return 2;
}
/* GPRS: 12.15
* UMTS: 33.015
*/
static int
decode_gtp_tr_comm(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint8 tr_command;
tr_command = tvb_get_ntohl(tvb, offset+1);
proto_tree_add_uint(tree, hf_gtp_ext_tr_comm, tvb, offset, 2, tr_command);
return 2;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.17, page 43
* UMTS: 29.060 v4.0, chapter 7.7.26, page 55
*/
static int
decode_gtp_chrg_id(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint32 chrg_id;
chrg_id = tvb_get_ntohl(tvb, offset+1);
proto_tree_add_uint(tree, hf_gtp_ext_chrg_id, tvb, offset, 5, chrg_id);
return 5;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.18, page 43
* UMTS: 29.060 v4.0, chapter 7.7.27, page 55
*/
static int
decode_gtp_user_addr(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint16 length;
guint8 pdp_typ, pdp_org;
guint32 addr_ipv4;
struct e_in6_addr addr_ipv6;
proto_tree *ext_tree_user;
proto_item *te;
length = tvb_get_ntohs(tvb, offset+1);
pdp_org = tvb_get_guint8(tvb, offset+3) & 0x0F;
pdp_typ = tvb_get_guint8(tvb, offset+4);
te = proto_tree_add_text(tree, tvb, offset, 3+length, "%s (%s / %s)",
val_to_str(GTP_EXT_USER_ADDR, gtp_ext_val, "Unknown message"),
val_to_str(pdp_org, pdp_org_type, "Unknown PDP Organization"),
val_to_str(pdp_typ, pdp_type, "Unknown PDP Type"));
ext_tree_user = proto_item_add_subtree(te, ett_gtp_ext_user);
proto_tree_add_text(ext_tree_user, tvb, offset+1, 2, "Length : %u", length);
proto_tree_add_uint(ext_tree_user, hf_gtp_ext_user_addr_pdp_org, tvb, offset+3, 1, pdp_org);
proto_tree_add_uint(ext_tree_user, hf_gtp_ext_user_addr_pdp_type, tvb, offset+4, 1, pdp_typ);
if (length == 2) {
if (pdp_org == 0 && pdp_typ == 1)
proto_item_append_text(te, " (Point to Point Protocol)");
else if (pdp_typ == 2)
proto_item_append_text(te, " (Octet Stream Protocol)");
} else if (length > 2) {
switch (pdp_typ) {
case 0x21:
addr_ipv4 = tvb_get_letohl(tvb, offset+5);
proto_tree_add_ipv4(ext_tree_user, hf_gtp_ext_user_ipv4, tvb, offset+5, 4, addr_ipv4);
proto_item_append_text(te, " : %s",
ip_to_str((guint8 *)&addr_ipv4));
break;
case 0x57:
tvb_memcpy(tvb, (guint8 *)&addr_ipv6, offset+5, sizeof addr_ipv6);
proto_tree_add_ipv6(ext_tree_user, hf_gtp_ext_user_ipv6, tvb, offset+5, 16, (guint8 *)&addr_ipv6);
proto_item_append_text(te, " : %s",
ip6_to_str((struct e_in6_addr*)&addr_ipv6));
break;
}
} else
proto_item_append_text(te, " : empty PDP Address");
return 3+length;
}
static int
decode_triplet(tvbuff_t *tvb, int offset, proto_tree *tree, guint16 count) {
proto_tree *ext_tree_trip;
proto_item *te_trip;
guint32 rand[4], sres, kc[2];
guint16 i;
for (i=0;i<count;i++) {
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);
ext_tree_trip = proto_item_add_subtree(te_trip, ett_gtp_ext_trip);
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);
ext_tree_quint = proto_item_add_subtree(te_quint, ett_gtp_ext_quint);
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;
proto_item *te;
te = proto_tree_add_text(tree, tvb, offset, 1, val_to_str(GTP_EXT_MM_CNTXT, gtp_ext_val, "Unknown message"));
ext_tree_mm = proto_item_add_subtree(te, ett_gtp_ext_mm);
length = tvb_get_ntohs(tvb, offset+1);
if (length < 1) return 3;
cksn = tvb_get_guint8(tvb, offset+3) & 0x07;
sec_mode = (tvb_get_guint8(tvb, offset+4) >> 6) & 0x03;
count = (tvb_get_guint8(tvb, offset+4) >> 3) & 0x07;
cipher = tvb_get_guint8(tvb, offset+4) & 0x07;
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]);
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);
if (con_len > 0) {
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);
}
return 3+length;
}
/* adjust - how many bytes before offset sould be highligthed
* WARNING : actually length is coded on 2 octets for QoS profile but on 1 octet for PDP Context!
*/
static int
decode_qos_umts(tvbuff_t *tvb, int offset, proto_tree *tree, gchar* qos_str, guint8 adjust) {
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;
guint8 trans_delay, traf_handl_priority;
guint8 guar_ul, guar_dl;
proto_tree *ext_tree_qos;
proto_item *te;
int mss, mu, md, gu, gd;
length = tvb_get_guint8(tvb, offset-1);
al_ret_priority = tvb_get_guint8(tvb, offset);
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;
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_priority = tvb_get_guint8(tvb, offset+9) & 0x03;
guar_ul = tvb_get_guint8(tvb, offset+10);
guar_dl = tvb_get_guint8(tvb, offset+11);
te = proto_tree_add_text(tree, tvb, offset-adjust, length+adjust, "%s : length (%u)", qos_str, length);
ext_tree_qos = proto_item_add_subtree(te, ett_gtp_ext_qos);
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_al_ret_priority, tvb, offset, 1, al_ret_priority);
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_spare1, tvb, offset+1, 1, spare1);
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_delay, tvb, offset+1, 1, delay);
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_reliability, tvb, offset+1, 1, reliability);
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_peak, tvb, offset+2, 1, peak);
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_spare2, tvb, offset+2, 1, spare2);
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_precedence, tvb, offset+2, 1, precedence);
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_spare3, tvb, offset+3, 1, spare3);
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_mean, tvb, offset+3, 1, mean);
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_traf_class, tvb, offset+4, 1, traf_class);
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_del_order, tvb, offset+4, 1, del_order);
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_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_gtp_ext_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_gtp_ext_qos_max_sdu_size, tvb, offset+5, 1, mss, "Maximum SDU size : %u octets", mss);
}
if(max_ul == 0 || max_ul == 255)
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_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_gtp_ext_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_gtp_ext_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_gtp_ext_qos_max_ul, tvb, offset+6, 1, mu, "Maximum bit rate for uplink : %u kbps", mu);
}
if(max_dl == 0 || max_dl == 255)
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_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_gtp_ext_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_gtp_ext_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_gtp_ext_qos_max_dl, tvb, offset+7, 1, md, "Maximum bit rate for downlink : %u kbps", md);
}
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_res_ber, tvb, offset+8, 1, res_ber);
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_sdu_err_ratio, tvb, offset+8, 1, sdu_err_ratio);
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_trans_delay, tvb, offset+9, 1, trans_delay);
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_qos_traf_handl_priority, tvb, offset+9, 1, traf_handl_priority);
if(guar_ul == 0 || guar_ul == 255)
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_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_gtp_ext_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_gtp_ext_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_gtp_ext_qos_guar_ul, tvb, offset+10, 1, gu, "Guaranteed bit rate for uplink : %u kbps", gu);
}
if(guar_dl == 0 || guar_dl == 255)
proto_tree_add_uint(ext_tree_qos, hf_gtp_ext_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_gtp_ext_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_gtp_ext_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_gtp_ext_qos_guar_dl, tvb, offset+11, 1, gd, "Guaranteed bit rate for downlink : %u kbps", gd);
}
return length + adjust;
}
static void
decode_apn(tvbuff_t *tvb, int offset, guint16 length, proto_tree *tree) {
gchar *apn = NULL;
guint8 name_len, tmp;
if (length > 0) {
apn = g_malloc(length);
tvb_memcpy(tvb, apn, offset+1, length);
name_len = tvb_get_guint8(tvb, offset);
for (;;) {
if (name_len >= length-1) break;
tmp = name_len;
name_len = name_len + apn[tmp] + 1;
apn[tmp] = '.';
}
apn[length-1] = '\0';
proto_tree_add_string(tree, hf_gtp_ext_apn, tvb, offset, length, apn);
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;
guint16 length, l_offset, sn_down, sn_up, up_flow;
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);
te = proto_tree_add_text(tree, tvb, offset, length+3, val_to_str(GTP_EXT_PDP_CNTXT, gtp_ext_val, "Unknown message"));
ext_tree_pdp = proto_item_add_subtree(te, ett_gtp_ext_pdp);
vaa = (tvb_get_guint8(tvb, offset+3) >> 6) & 0x01;
order = (tvb_get_guint8(tvb, offset+3) >> 4) & 0x01;
nsapi = tvb_get_guint8(tvb, offset+3) & 0x0F;
sapi = tvb_get_guint8(tvb, offset+4) & 0x0F;
proto_tree_add_text(ext_tree_pdp, tvb, offset+3, 1, "VPLMN address allowed: %s", yesno[vaa]);
proto_tree_add_text(ext_tree_pdp, tvb, offset+3, 1, "Reordering required: %s", yesno[order]);
proto_tree_add_text(ext_tree_pdp, tvb, offset+3, 1, "NSAPI: %u", nsapi);
proto_tree_add_text(ext_tree_pdp, tvb, offset+4, 1, "SAPI: %u", sapi);
switch (gtp_version) {
case 0:
decode_qos_gprs(tvb, offset+5, ext_tree_pdp, "QoS subscribed", 0);
decode_qos_gprs(tvb, offset+8, ext_tree_pdp, "QoS requested", 0);
decode_qos_gprs(tvb, offset+11, ext_tree_pdp, "QoS negotiated", 0);
offset = offset + 13;
break;
case 1:
offset = offset + 5;
offset = offset + decode_qos_umts(tvb, offset+1, ext_tree_pdp, "QoS subscribed", 1);
offset = offset + decode_qos_umts(tvb, offset+1, ext_tree_pdp, "QoS requested", 1);
offset = offset + decode_qos_umts(tvb, offset+1, ext_tree_pdp, "QoS negotiated", 1);
break;
default:
break;
}
sn_down = tvb_get_ntohs(tvb, offset);
sn_up = tvb_get_ntohs(tvb, offset+2);
pdu_send_no = tvb_get_guint8(tvb, offset+4);
pdu_rec_no = tvb_get_guint8(tvb, offset+5);
proto_tree_add_text(ext_tree_pdp, tvb, offset, 2, "Sequence number down: %u", sn_down);
proto_tree_add_text(ext_tree_pdp, tvb, offset+2, 2, "Sequence number up: %u", sn_up);
proto_tree_add_text(ext_tree_pdp, tvb, offset+4, 1, "Send N-PDU number: %u", pdu_send_no);
proto_tree_add_text(ext_tree_pdp, tvb, offset+5, 1, "Receive N-PDU number: %u", pdu_rec_no);
switch (gtp_version) {
case 0:
up_flow = tvb_get_ntohs(tvb, offset+6);
proto_tree_add_text(ext_tree_pdp, tvb, offset+6, 2, "Uplink flow label signalling: %u", up_flow);
offset = offset + 8;
break;
case 1:
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);
proto_tree_add_text(ext_tree_pdp, tvb, offset, 1, "PDP type: %s", val_to_str(pdp_type_org, pdp_type, "Unknown PDP type"));
proto_tree_add_text(ext_tree_pdp, tvb, offset+1, 1, "PDP organization: %s", val_to_str(pdp_type_num, pdp_org_type, "Unknown PDP org"));
proto_tree_add_text(ext_tree_pdp, tvb, offset+2, 1, "PDP address length: %u", pdp_addr_len);
if (pdp_addr_len > 0) {
switch (pdp_type_num) {
case 0x21:
addr_ipv4 = tvb_get_letohl(tvb, offset+3);
proto_tree_add_text(ext_tree_pdp, tvb, offset+3, 4, "PDP address: %s", ip_to_str((guint8 *)&addr_ipv4));
break;
case 0x57:
tvb_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);
proto_tree_add_text(ext_tree_pdp, tvb, offset, 1, "GGSN 1 address length: %u", ggsn_addr_len);
switch (ggsn_addr_len) {
case 4:
addr_ipv4 = tvb_get_letohl(tvb, offset+1);
proto_tree_add_text(ext_tree_pdp, tvb, offset+1, 4, "GGSN 1 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 1 address: %s", ip6_to_str((struct e_in6_addr*)&addr_ipv6));
break;
default:
break;
}
offset = offset + 1 + ggsn_addr_len;
ggsn_addr_len = tvb_get_guint8(tvb, offset);
proto_tree_add_text(ext_tree_pdp, tvb, offset, 1, "GGSN 2 address length: %u", ggsn_addr_len);
switch (ggsn_addr_len) {
case 4:
addr_ipv4 = tvb_get_letohl(tvb, offset+1);
proto_tree_add_text(ext_tree_pdp, tvb, offset+1, 4, "GGSN 2 address: %s", ip_to_str((guint8 *)&addr_ipv4));
break;
case 16:
tvb_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;
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;
}
/* GPRS: 9.60, v7.6.0, chapter 7.9.21
* UMTS: 29.060, v4.0, chapter 7.7.30
*/
static int
decode_gtp_apn(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint16 length, name_len, tmp;
gchar *apn;
proto_tree *ext_tree_apn;
proto_item *te;
length = tvb_get_ntohs(tvb, offset+1);
te = proto_tree_add_text(tree, tvb, offset, length+3, val_to_str(GTP_EXT_APN, gtp_ext_val, "Unknown field"));
ext_tree_apn = proto_item_add_subtree(te, ett_gtp_ext_apn);
proto_tree_add_text(ext_tree_apn, tvb, offset+1, 2, "APN length : %u", length);
decode_apn(tvb, offset+3, length, ext_tree_apn);
return 3+length;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.22
* 4.08 v. 7.1.2, chapter 10.5.6.3 (p.580)
* UMTS: 29.060 v4.0, chapter 7.7.31
* 24.008, v4.2, chapter 10.5.6.3
* TODO: check if length is 8 or 16 bits
* - proto_conf in 3G */
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;
packet_info save_pi;
length = tvb_get_ntohs(tvb, offset + 1);
te = proto_tree_add_text(tree, tvb, offset, length + 3, val_to_str(GTP_EXT_PROTO_CONF, gtp_ext_val, "Unknown message"));
ext_tree_proto = proto_item_add_subtree(te, ett_gtp_ext_proto);
proto_tree_add_text(ext_tree_proto, tvb, offset + 1, 2, "Length: %u", length);
if (length < 1) return 3;
conf = tvb_get_guint8(tvb, offset + 3) & 0x07;
proto_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);
/* Save the current value of "pi", and adjust
certain fields to reflect the new top-level
tvbuff. */
save_pi = pi;
pi.compat_top_tvb = next_tvb;
pi.len = tvb_reported_length(next_tvb);
pi.captured_len = tvb_length(next_tvb);
call_dissector(ppp_handle, next_tvb, pinfo, ext_tree_proto);
pi = save_pi;
if (check_col(pinfo->fd, COL_PROTOCOL)) col_set_str(pinfo->fd, COL_PROTOCOL, "GTP");
if (check_col(pinfo->fd, COL_INFO)) {
msg = tvb_get_guint8(tvb, 1);
col_set_str(pinfo->fd, COL_INFO, val_to_str(msg, message_type, "Unknown"));
}
}
}
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 : ");
ext_tree_gsn_addr = proto_item_add_subtree(te, ett_gtp_ext_gsn_addr);
switch (length) {
case 4:
proto_tree_add_text(ext_tree_gsn_addr, tvb, offset+1, 2, "GSN address length : %u", length);
addr_ipv4 = tvb_get_letohl(tvb, offset+3);
proto_item_append_text(te, "%s", ip_to_str((guint8 *)&addr_ipv4));
proto_tree_add_ipv4(ext_tree_gsn_addr, hf_gtp_ext_gsn_ipv4, tvb, offset+3, 4, addr_ipv4);
break;
case 5:
proto_tree_add_text(ext_tree_gsn_addr, tvb, offset+1, 2, "GSN address Information Element length : %u", length);
addr_type = tvb_get_guint8(tvb, offset+3) & 0xC0;
proto_tree_add_uint(ext_tree_gsn_addr, hf_gtp_ext_gsn_addr_type, tvb, offset+3, 1, addr_type);
addr_len = tvb_get_guint8(tvb, offset+3) & 0x3F;
proto_tree_add_uint(ext_tree_gsn_addr, hf_gtp_ext_gsn_addr_len, tvb, offset+3, 1, addr_len);
addr_ipv4 = tvb_get_letohl(tvb, offset+4);
proto_item_append_text(te, "%s", ip_to_str((guint8 *)&addr_ipv4));
proto_tree_add_ipv4(ext_tree_gsn_addr, hf_gtp_ext_gsn_ipv4, tvb, offset+4, 4, addr_ipv4);
break;
case 16:
proto_tree_add_text(ext_tree_gsn_addr, tvb, offset+1, 2, "GSN address length : %u", length);
tvb_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));
proto_tree_add_ipv6(ext_tree_gsn_addr, hf_gtp_ext_gsn_ipv6, tvb, offset+3, 16, (guint8*)&addr_ipv6);
break;
case 17:
proto_tree_add_text(ext_tree_gsn_addr, tvb, offset+1, 2, "GSN address Information Element length : %u", length);
addr_type = tvb_get_guint8(tvb, offset+3) & 0xC0;
proto_tree_add_uint(ext_tree_gsn_addr, hf_gtp_ext_gsn_addr_type, tvb, offset+3, 1, addr_type);
addr_len = tvb_get_guint8(tvb, offset+3) & 0x3F;
proto_tree_add_uint(ext_tree_gsn_addr, hf_gtp_ext_gsn_addr_len, tvb, offset+3, 1, addr_len);
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));
proto_tree_add_ipv6(ext_tree_gsn_addr, hf_gtp_ext_gsn_ipv6, tvb, offset+4, 16, (guint8*)&addr_ipv6);
break;
default:
proto_item_append_text(te, "unknown type or wrong length");
break;
}
return 3+length;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.24
* UMTS: 29.060 v4.0, chapter 7.7.33
*/
static int
decode_gtp_msisdn(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
const guint8 *msisdn_val;
gchar *msisdn_str;
guint16 length;
length = tvb_get_ntohs(tvb, offset+1);
if (length < 1) return 3;
msisdn_val = tvb_get_ptr(tvb, offset+3, length);
msisdn_str = msisdn_to_str(msisdn_val, length);
proto_tree_add_string(tree, hf_gtp_ext_msisdn, tvb, offset, 3+length, msisdn_str);
return 3+length;
}
/* GPRS: not present
* UMTS: 29.060 v4.0, chapter 7.7.34
* 24.008 v4.2, chapter 10.5.6.5
*/
static int
decode_gtp_qos_umts(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
return decode_qos_umts(tvb, offset+3, tree, "Quality of Service", 3);
}
/* 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");
ext_tree_tft = proto_item_add_subtree(te, ett_gtp_ext_tft);
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);
ext_tree_tft_pf = proto_item_add_subtree(tee, ett_gtp_ext_tft_pf);
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)");
addr_ipv4 = tvb_get_letohl(tvb, offset + pf_offset + 1);
proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset + 1, 4, "\tAddress: %s", ip_to_str((guint8 *)&addr_ipv4));
addr_ipv4 = tvb_get_letohl(tvb, offset + pf_offset + 5);
proto_tree_add_text(ext_tree_tft_pf, tvb, offset + pf_offset + 5, 4, "\tNetmask: %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, "\tAddress: %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, "\tNetmask: %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;
default:
break;
}
}
}
}
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;
length = tvb_get_ntohs(tvb, offset + 1);
proto_tree_add_text(tree, tvb, offset, 3 + length, "Targer Identification");
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;
}
/* 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) {
guint32 teid, addr_ipv4;
guint16 length;
guint8 nsapi;
struct e_in6_addr addr_ipv6;
proto_tree *ext_tree_rab_setup;
proto_item *te;
length = tvb_get_ntohs(tvb, offset + 1);
nsapi = tvb_get_guint8(tvb, offset + 3) & 0x0F;
te = proto_tree_add_text(tree, tvb, offset, 3+length, "Radio Access Bearer Setup Information");
ext_tree_rab_setup = proto_item_add_subtree(te, ett_gtp_ext_rab_setup);
proto_tree_add_text(ext_tree_rab_setup, tvb, offset+1, 2, "RAB setup length : %u", length);
proto_tree_add_uint(ext_tree_rab_setup, hf_gtp_ext_nsapi, tvb, offset+3, 1, nsapi);
if (length > 1) {
teid = tvb_get_ntohl(tvb, offset + 4);
proto_tree_add_text(ext_tree_rab_setup, tvb, offset+4, 4, "Tunnel endpoint identifier data : %x", teid);
switch (length) {
case 12:
addr_ipv4 = tvb_get_letohl(tvb, offset + 8);
proto_tree_add_ipv4(ext_tree_rab_setup, hf_gtp_ext_rnc_ipv4, tvb, offset+8, 4, addr_ipv4);
break;
case 24:
tvb_memcpy(tvb, (guint8 *)&addr_ipv6, offset+8, sizeof addr_ipv6);
proto_tree_add_ipv6(ext_tree_rab_setup, hf_gtp_ext_rnc_ipv6, tvb, offset+8, 16, (guint8 *)&addr_ipv6);
break;
default:
break;
}
}
return 3 + length;
}
/* GPRS: not present
* UMTS: 29.060 v4.0, chapter 7.7.40
*/
static int
decode_gtp_hdr_list(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
int i;
guint8 length, hdr;
proto_tree *ext_tree_hdr_list;
proto_item *te;
length = tvb_get_guint8(tvb, offset + 1);
te = proto_tree_add_text(tree, tvb, offset, 2+length, "%s", val_to_str(GTP_EXT_HDR_LIST, gtp_ext_val, "Unknown"));
ext_tree_hdr_list = proto_item_add_subtree(te, ett_gtp_ext_hdr_list);
proto_tree_add_text(ext_tree_hdr_list, tvb, offset+1, 1, "Number of Extension Header Types in list (i.e., length) : %u", length);
for(i=0 ; i<length ; i++) {
hdr = tvb_get_guint8(tvb, offset+2+i);
proto_tree_add_text(ext_tree_hdr_list, tvb, offset+2+i, 1, "N<EFBFBD>%u --> Extension Header Type value : %s (%u)", i+1, val_to_str(hdr, gtp_ext_val, "Unknown Extension Header Type"), hdr);
}
return 2 + length;
}
/* GPRS: not present
* UMTS: 29.060 v4.0, chapter 7.7.41
* TODO: find TriggerID description
*/
static int
decode_gtp_trigger_id(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint16 length;
length = tvb_get_ntohs(tvb, offset + 1);
proto_tree_add_text(tree, tvb, offset, 3+length, "%s length : %u", val_to_str(GTP_EXT_TRIGGER_ID, gtp_ext_val, "Unknown"), length);
return 3 + length;
}
/* GPRS: not present
* UMTS: 29.060 v4.0, chapter 7.7.42
* TODO: find OMC-ID description
*/
static int
decode_gtp_omc_id(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint16 length;
length = tvb_get_ntohs(tvb, offset + 1);
proto_tree_add_text(tree, tvb, offset, 3+length, "%s length : %u", val_to_str(GTP_EXT_OMC_ID, gtp_ext_val, "Unknown"), length);
return 3 + length;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.25
* UMTS: 29.060 v4.0, chapter 7.7.43
*/
static int
decode_gtp_chrg_addr(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint16 length;
guint32 addr_ipv4;
struct e_in6_addr addr_ipv6;
proto_tree *ext_tree_chrg_addr;
proto_item *te;
length = tvb_get_ntohs(tvb, offset+1);
te = proto_tree_add_text(tree, tvb, offset, 3+length, "%s : ",
val_to_str(GTP_EXT_CHRG_ADDR, gtp_ext_val, "Unknown"));
ext_tree_chrg_addr = proto_item_add_subtree(te, ett_gtp_ext_chrg_addr);
proto_tree_add_text(ext_tree_chrg_addr, tvb, offset+1, 2, "%s length : %u", val_to_str(GTP_EXT_CHRG_ADDR, gtp_ext_val, "Unknown"), length);
switch (length) {
case 4:
addr_ipv4 = tvb_get_letohl(tvb, offset+3);
proto_item_append_text(te, "%s", ip_to_str((guint8 *)&addr_ipv4));
proto_tree_add_ipv4(ext_tree_chrg_addr, hf_gtp_ext_chrg_ipv4, tvb, offset+3, 4, addr_ipv4);
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));
proto_tree_add_ipv6(ext_tree_chrg_addr, hf_gtp_ext_chrg_ipv6, tvb, offset+3, 16, (guint8*)&addr_ipv6);
break;
default:
proto_item_append_text(te, "unknown type or wrong length");
break;
}
return 3 + length;
}
/* GPRS: 12.15
* UMTS: 33.015
*/
static int
decode_gtp_rel_pack(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint16 length, n, number;
proto_tree *ext_tree_rel_pack;
proto_item *te;
length = tvb_get_ntohs(tvb, offset + 1);
te = proto_tree_add_text(tree, tvb, offset, 3 + length, "Sequence numbers of released packets IE");
ext_tree_rel_pack = proto_item_add_subtree(te, ett_gtp_ext_rel_pack);
n = 0;
while (n < length) {
number = tvb_get_ntohs(tvb, offset + 3 + n);
proto_tree_add_text(ext_tree_rel_pack, tvb, offset + 3 + n, 2, "%u", number);
n = n + 2;
}
return 3 + length;
}
/* GPRS: 12.15
* UMTS: 33.015
*/
static int
decode_gtp_can_pack(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint16 length, n, number;
proto_tree *ext_tree_can_pack;
proto_item *te;
length = tvb_get_ntohs(tvb, offset + 1);
te = proto_tree_add_text(tree, tvb, offset, 3 + length, "Sequence numbers of cancelled packets IE");
ext_tree_can_pack = proto_item_add_subtree(te, ett_gtp_ext_can_pack);
n = 0;
while (n < length) {
number = tvb_get_ntohs(tvb, offset + 3 + n);
proto_tree_add_text(ext_tree_can_pack, tvb, offset + 3 + n, 2, "%u", number);
n = n + 2;
}
return 3 + length;
}
/* CDRs dissector */
static int
decode_gtp_data_req(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint16 length, format_ver, data_len, i, j;
guint8 no, format, rectype;
proto_tree *ext_tree, *cdr_tree;
proto_item *te, *ce;
te = proto_tree_add_text(tree, tvb, offset, 1, val_to_str(GTP_EXT_DATA_REQ, gtp_ext_val, "Unknown message"));
ext_tree = proto_item_add_subtree(te, ett_gtp_ext);
length = tvb_get_ntohs(tvb, offset + 1);
no = tvb_get_guint8(tvb, offset + 3);
format = tvb_get_guint8(tvb, offset + 4);
format_ver = tvb_get_ntohs(tvb, offset + 5);
proto_tree_add_text(ext_tree, tvb, offset+1, 2, "Length: %u", length);
proto_tree_add_text(ext_tree, tvb, offset+3, 1, "Number of data records: %u", no);
proto_tree_add_text(ext_tree, tvb, offset+4, 1, "Data record format: %u", format);
proto_tree_add_text(ext_tree, tvb, offset+5, 2, "Data record format version: %u", format_ver);
data_len = 0;
offset = offset + 7;
if (gtp_cdr_as != DONT_DISSECT_CDRS) {
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 */
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);
gcdr.ggsnaddr = tvb_get_letohl(tvb, offset+11);
gcdr.chrgid = tvb_get_ntohl(tvb, offset+15);
gcdr.sgsnaddr = tvb_get_letohl(tvb, offset+19);
tvb_memcpy(tvb, gcdr.apn, offset+23, 63);
gcdr.pdporg = tvb_get_guint8(tvb, offset+86);
gcdr.pdptype = tvb_get_guint8(tvb, offset+87);
gcdr.pdpaddr = tvb_get_letohl(tvb, offset+88);
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));
proto_tree_add_text(cdr_tree, tvb, offset+112, 4, "Duration: %s", time_int_to_str(gcdr.duration));
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) {
proto_tree_add_text(cdr_tree, tvb, offset+121, 8, "MSISDN: ");
}
break;
case 0x12: /* SCDR */
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);
scdr.sgsnaddr = tvb_get_letohl(tvb, offset+35);
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);
scdr.ci = tvb_get_ntohs(tvb, offset+58);
scdr.chrgid = tvb_get_ntohl(tvb, offset+60);
scdr.ggsnaddr = tvb_get_letohl(tvb, offset+64);
tvb_memcpy(tvb, scdr.apn, offset+68, 64);
scdr.pdporg = tvb_get_guint8(tvb, offset+132);
scdr.pdptype = tvb_get_guint8(tvb, offset+133);
scdr.pdpaddr = tvb_get_letohl(tvb, offset+134);
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));
proto_tree_add_text(cdr_tree, tvb, offset+8, 16, "IMEI: %s", id_to_str(scdr.imei));
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);
proto_tree_add_uint(cap_tree, hf_gtp_chrg_cap_gea, tvb, offset+52, 1, scdr.cap);
proto_tree_add_uint(cap_tree, hf_gtp_chrg_cap_sm_gsm, tvb, offset+52, 1, scdr.cap);
proto_tree_add_uint(cap_tree, hf_gtp_chrg_cap_sm_gprs, tvb, offset+52, 1, scdr.cap);
proto_tree_add_uint(cap_tree, hf_gtp_chrg_cap_ucs2, tvb, offset+52, 1, scdr.cap);
proto_tree_add_uint(cap_tree, hf_gtp_chrg_cap_ss, tvb, offset+52, 1, scdr.cap);
proto_tree_add_uint(cap_tree, hf_gtp_chrg_cap_solsa, tvb, offset+52, 1, scdr.cap);
proto_tree_add_uint(cap_tree, hf_gtp_chrg_cap_pad, tvb, offset+52, 1, scdr.cap);
*/
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);
proto_tree_add_text(cdr_tree, tvb, offset+58, 2, "Cell ID: %u", scdr.ci);
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));
proto_tree_add_text(cdr_tree, tvb, offset+262, 4, "Duration: %s", time_int_to_str(scdr.duration));
proto_tree_add_text(cdr_tree, tvb, offset+266, 1, "SGSN change: %u", scdr.sgsnchange);
proto_tree_add_text(cdr_tree, tvb, offset+267, 1, "Cause for close: %u", scdr.closecause);
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);
break;
case 0x14: /* MCDR */
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;
}
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);
mcdr.sgsnaddr = tvb_get_letohl(tvb, offset+33);
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);
break;
case 0x15: /* SOCDR */
tvb_memcpy(tvb, (guint8 *)&socdr, offset+3, 80);
break;
case 0x16: /* STCDR */
tvb_memcpy(tvb, (guint8 *)&stcdr, offset+3, 79);
}
offset = offset + 2 + data_len;
}
}
return 3+length;
}
/* 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");
ext_tree_data_resp = proto_item_add_subtree(te, ett_gtp_ext_data_resp);
n = 0;
while (n < length) {
number = tvb_get_ntohs(tvb, offset + 3 + n);
proto_tree_add_text(ext_tree_data_resp, tvb, offset + 3 + n, 2, "%u", number);
n = n + 2;
}
return 3 + length;
}
/* GPRS: 12.15
* UMTS: 33.015
*/
static int
decode_gtp_node_addr(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
guint16 length;
guint32 addr_ipv4;
struct e_in6_addr addr_ipv6;
proto_tree *ext_tree_node_addr;
proto_item *te;
length = tvb_get_ntohs(tvb, offset+1);
te = proto_tree_add_text(tree, tvb, offset, 3+length, "Node address: ");
ext_tree_node_addr = proto_item_add_subtree(te, ett_gtp_ext_node_addr);
proto_tree_add_text(ext_tree_node_addr, tvb, offset+1, 2, "Node address length: %u", length);
switch (length) {
case 4:
addr_ipv4 = tvb_get_letohl(tvb, offset+3);
proto_item_append_text(te, "%s", ip_to_str((guint8 *)&addr_ipv4));
proto_tree_add_ipv4(ext_tree_node_addr, hf_gtp_ext_node_ipv4, tvb, offset+3, 4, addr_ipv4);
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));
proto_tree_add_ipv6(ext_tree_node_addr, hf_gtp_ext_node_ipv6, tvb, offset+3, 16, (guint8*)&addr_ipv6);
break;
default:
proto_item_append_text(te, "unknown type or wrong length");
break;
}
return 3 + length;
}
/* GPRS: 9.60 v7.6.0, chapter 7.9.26
* UMTS: 29.060 v4.0, chapter 7.7.44
*/
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];
proto_tree *ext_tree_priv_ext;
proto_item *te;
te = proto_tree_add_text(tree, tvb, offset, 1, val_to_str(GTP_EXT_PRIV_EXT, gtp_ext_val, "Unknown message"));
ext_tree_priv_ext = proto_item_add_subtree(te, ett_gtp_ext);
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';
proto_tree_add_uint(ext_tree_priv_ext, hf_gtp_ext_ext_id, tvb, offset+3, 2, ext_id);
proto_tree_add_string(ext_tree_priv_ext, hf_gtp_ext_ext_val, tvb, offset+5, length-2, ext_val);
return 3+length;
}
static int
decode_gtp_unknown(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) {
proto_tree_add_text(tree, tvb, offset, 1, "Unknown extension header");
return tvb_length_remaining(tvb, offset);
}
static void
dissect_gtp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
_gtp_hdr gtp_hdr;
proto_item *ti, *tf;
proto_tree *gtp_tree, *flags_tree;
guint8 ext_hdr_val;
tvbuff_t *next_tvb;
const guint8 *tid_val;
gchar *tid_str;
int offset, length, i, mandatory, checked_field;
if (check_col(pinfo->fd, COL_PROTOCOL)) col_set_str(pinfo->fd, COL_PROTOCOL, "GTP");
if (check_col(pinfo->fd, COL_INFO)) col_clear(pinfo->fd, COL_INFO);
tvb_memcpy(tvb, (guint8 *)&gtp_hdr, 0, 12);
tid_val = tvb_get_ptr(tvb, 12, 8);
tid_str = id_to_str(tid_val);
gtp_version = (gtp_hdr.flags >> 5) & 0x07;
if (!((gtp_hdr.flags >> 4) & 1)) {
if (check_col(pinfo->fd, COL_PROTOCOL))
col_set_str(pinfo->fd, COL_PROTOCOL, "GTP-CDR");
} else {
switch ((gtp_hdr.flags >> 5) & 0x07) {
case 0: if (check_col(pinfo->fd, COL_PROTOCOL))
col_set_str(pinfo->fd, COL_PROTOCOL, "GTP");
break;
case 1: if (check_col(pinfo->fd, COL_PROTOCOL))
col_set_str(pinfo->fd, COL_PROTOCOL, "GTPv1");
default: if (check_col(pinfo->fd, COL_PROTOCOL))
col_set_str(pinfo->fd, COL_PROTOCOL, "GTPv?");
break;
}
}
if (check_col(pinfo->fd, COL_INFO)) col_add_str(pinfo->fd, COL_INFO, val_to_str(gtp_hdr.message, message_type, "Unknown"));
if (tree) {
/* dissect GTP header */
ti = proto_tree_add_item(tree, proto_gtp, tvb, 0, tvb_length(tvb), FALSE);
gtp_tree = proto_item_add_subtree(ti, ett_gtp);
tf = proto_tree_add_uint(gtp_tree, hf_gtp_flags, tvb, 0, 1, gtp_hdr.flags);
flags_tree = proto_item_add_subtree(tf, ett_gtp_flags);
proto_tree_add_uint(flags_tree, hf_gtp_flags_ver, tvb, 0, 1, gtp_hdr.flags);
proto_tree_add_uint(flags_tree, hf_gtp_flags_pt, tvb, 0, 1, gtp_hdr.flags);
proto_tree_add_uint(flags_tree, hf_gtp_flags_spare, tvb, 0, 1, gtp_hdr.flags);
proto_tree_add_uint(flags_tree, hf_gtp_flags_snn, tvb, 0, 1, gtp_hdr.flags);
gtp_hdr.length = ntohs(gtp_hdr.length);
gtp_hdr.seq_no = ntohs(gtp_hdr.seq_no);
proto_tree_add_uint(gtp_tree, hf_gtp_message_type, tvb, 1, 1, gtp_hdr.message);
proto_tree_add_uint(gtp_tree, hf_gtp_length, tvb, 2, 2, gtp_hdr.length);
proto_tree_add_uint(gtp_tree, hf_gtp_seq_number, tvb, 4, 2, gtp_hdr.seq_no);
proto_tree_add_uint(gtp_tree, hf_gtp_flow_label, tvb, 6, 2, gtp_hdr.flow_label);
proto_tree_add_uint(gtp_tree, hf_gtp_sndcp_number, tvb, 8, 1, gtp_hdr.sndcp_no);
proto_tree_add_string(gtp_tree, hf_gtp_tid, tvb, 12, 8, tid_str);
if (gtp_hdr.message != GTP_MSG_TPDU) {
proto_tree_add_text(gtp_tree, tvb, 0, 0, "[--- end of GTP v0 header, beginning of extension headers ---]");
offset = GTP_HDR_LENGTH;
length = tvb_length(tvb);
mandatory = 0; /* check order of GTP fields against ETSI */
for (;;) {
if (offset >= length) break;
ext_hdr_val = tvb_get_guint8(tvb, offset);
if (gtp_etsi_order) {
checked_field = check_field_presence (gtp_hdr.message, ext_hdr_val , (int *)&mandatory);
switch (checked_field) {
case -2: proto_tree_add_text(gtp_tree, tvb, 0, 0, "[WARNING] message not found");
break;
case -1: proto_tree_add_text(gtp_tree, tvb, 0, 0, "[WARNING] field not present");
break;
case 0: break;
default: proto_tree_add_text(gtp_tree, tvb, offset, 1, "[WARNING] wrong next field, should be: %s", val_to_str(checked_field, gtp_ext_val, "Unknown extension field"));
}
}
i = -1;
while (gtpopt[++i].optcode) if (gtpopt[i].optcode == ext_hdr_val) break;
offset = offset + (*gtpopt[i].decode)(tvb, offset, pinfo, gtp_tree);
}
}
}
/* next part dissects sublayers of GTP
* right now it's only IP */
if ((gtp_hdr.message == GTP_MSG_TPDU) && gtp_tpdu) {
next_tvb = tvb_new_subset(tvb, 20, -1, -1);
call_dissector(ip_handle, next_tvb, pinfo, tree);
if (check_col(pinfo->fd, COL_PROTOCOL)) col_append_str_gtp(pinfo->fd, COL_PROTOCOL, "GTP");
}
}
/* GTP v1 dissector */
static void
dissect_gtp3(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) {
_gtp3_hdr gtp3_hdr;
proto_item *ti, *tf;
proto_tree *gtp3_tree, *flags_tree;
guint16 seq_no;
guint8 ext_hdr_val, i, hdr_offset = 4, next_hdr, npdu_no;
tvbuff_t *next_tvb;
int offset, length, mandatory, checked_field;
if (check_col(pinfo->fd, COL_PROTOCOL)) col_set_str(pinfo->fd, COL_PROTOCOL, "GTP-C");
if (check_col(pinfo->fd, COL_INFO)) col_clear(pinfo->fd, COL_INFO);
tvb_memcpy(tvb, (guint8 *)&gtp3_hdr, 0, 8);
gtp_version = (gtp3_hdr.flags >> 5) & 0x07;
if (check_col(pinfo->fd, COL_INFO)) col_add_str(pinfo->fd, COL_INFO, val_to_str(gtp3_hdr.message, message_type, "Unknown"));
if (tree) {
ti = proto_tree_add_item(tree, proto_gtp3, tvb, 0, tvb_length(tvb), FALSE);
gtp3_tree = proto_item_add_subtree(ti, ett_gtp3);
tf = proto_tree_add_uint(gtp3_tree, hf_gtp3_flags, tvb, 0, 1, gtp3_hdr.flags);
flags_tree = proto_item_add_subtree(tf, ett_gtp3_flags);
proto_tree_add_uint(flags_tree, hf_gtp_flags_ver, tvb, 0, 1, gtp3_hdr.flags);
proto_tree_add_uint(flags_tree, hf_gtp_flags_pt, tvb, 0, 1, gtp3_hdr.flags);
proto_tree_add_uint(flags_tree, hf_gtp3_flags_spare, tvb, 0, 1, gtp3_hdr.flags);
proto_tree_add_uint(flags_tree, hf_gtp3_flags_e, tvb, 0, 1, gtp3_hdr.flags);
proto_tree_add_uint(flags_tree, hf_gtp3_flags_s, tvb, 0, 1, gtp3_hdr.flags);
proto_tree_add_uint(flags_tree, hf_gtp3_flags_pn, tvb, 0, 1, gtp3_hdr.flags);
gtp3_hdr.length = ntohs(gtp3_hdr.length);
proto_tree_add_uint(gtp3_tree, hf_gtp_message_type, tvb, 1, 1, gtp3_hdr.message);
proto_tree_add_uint(gtp3_tree, hf_gtp_length, tvb, 2, 2, gtp3_hdr.length);
proto_tree_add_uint(gtp3_tree, hf_gtp_teid, tvb, 4, 4, gtp3_hdr.teid);
hdr_offset = 0;
if (gtp3_hdr.flags & 0x02) {
seq_no = tvb_get_ntohs(tvb, 8);
proto_tree_add_uint(gtp3_tree, hf_gtp_seq_number, tvb, 8, 2, seq_no);
} else {
hdr_offset = hdr_offset + 2;
}
if ((gtp3_hdr.flags & 0x01 ) || (gtp3_hdr.message != 0xFF)) {
npdu_no = tvb_get_guint8(tvb, 10 - hdr_offset);
proto_tree_add_uint(gtp3_tree, hf_gtp_npdu_number, tvb, 10 - hdr_offset, 1, npdu_no);
} else {
hdr_offset = hdr_offset + 1;
}
if ((gtp3_hdr.flags & 0x04) || (gtp3_hdr.message != 0xFF)) {
next_hdr = tvb_get_guint8(tvb, 11 - hdr_offset);
proto_tree_add_uint(gtp3_tree, hf_gtp_next, tvb, 11 - hdr_offset, 1, next_hdr);
} else {
hdr_offset = hdr_offset + 1;
}
if (gtp3_hdr.message != GTP_MSG_TPDU) {
proto_tree_add_text(gtp3_tree, tvb, 0, 0, "[--- end of GTP v1 header, beginning of extension headers ---]");
offset = GTP3_HDR_LENGTH - hdr_offset;
length = tvb_length(tvb);
mandatory = 0; /* check order of GTP fields against ETSI */
for (;;) {
if (offset >= length) break;
ext_hdr_val = tvb_get_guint8(tvb, offset);
if (gtp3_etsi_order) {
checked_field = check_field_presence (gtp3_hdr.message, ext_hdr_val , (int *)&mandatory);
switch (checked_field) {
case -2: proto_tree_add_text(gtp3_tree, tvb, 0, 0, "[WARNING] message not found");
break;
case -1: proto_tree_add_text(gtp3_tree, tvb, 0, 0, "[WARNING] field not present");
break;
case 0: break;
default: proto_tree_add_text(gtp3_tree, tvb, offset, 1, "[WARNING] wrong next field, should be: %s", val_to_str(checked_field, gtp_ext_val, "Unknown extension field"));
}
}
i = -1;
while (gtpopt[++i].optcode) if (gtpopt[i].optcode == ext_hdr_val) break;
offset = offset + (*gtpopt[i].decode)(tvb, offset, pinfo, gtp3_tree);
}
}
}
#if 0
if (gtp3_hdr.message == GTP_MSG_ERR_IND)
if (check_col(pinfo->fd, COL_PROTOCOL)) col_add_str(pinfo->fd, COL_PROTOCOL, "GTP-U");
#endif
if ((gtp3_hdr.message == GTP_MSG_TPDU) && gtp_tpdu) {
hdr_offset = (gtp3_hdr.flags & 0x02) ? 2 : 4;
next_tvb = tvb_new_subset(tvb, GTP3_HDR_LENGTH - hdr_offset, -1, -1);
call_dissector(ip_handle, next_tvb, pinfo, tree);
if (check_col(pinfo->fd, COL_PROTOCOL)) col_append_str_gtp(pinfo->fd, COL_PROTOCOL, "GTP-U");
}
}
void
proto_register_gtp(void)
{
static hf_register_info hf[] = {
{ &hf_gtp_flags, { "Flags ", "gtp.flags", FT_UINT8, BASE_HEX, NULL, 0, "Ver/PT/Spare/SNN", HFILL }},
{ &hf_gtp3_flags, { "Flags ", "gtp.flags", FT_UINT8, BASE_HEX, NULL, 0, "Ver/PT/Spare/E/S/PN", HFILL }},
{ &hf_gtp_flags_ver, { "Version ", "gtp.flags.version", FT_UINT8, BASE_DEC, VALS(ver_types), GTP_VER_MASK, "GTP Version", HFILL }},
{ &hf_gtp_flags_pt, { "Protocol Type ", "gtp.flags.payload_type", FT_UINT8, BASE_DEC, NULL, GTP_PT_MASK, "Protocol Type (1 = GTP, 0 = GPRS charging protocol : GTP' )", HFILL }},
{ &hf_gtp_flags_spare, { "Reserved ", "gtp.flags.spare", FT_UINT8, BASE_DEC, NULL, GTP_SPARE_MASK, "Reserved (shall be sent as '111' )", HFILL }},
{ &hf_gtp3_flags_spare, { "Spare bit ", "gtp.flags.spare", FT_UINT8, BASE_DEC, NULL, GTP3_SPARE_MASK, "Spare bit (shall be sent as 0)", HFILL }},
{ &hf_gtp3_flags_e, { "Is Next Extension Header present? ", "gtp.flags.e", FT_UINT8, BASE_DEC, NULL, GTP3_E_MASK, "Is Next Extension Header present? (1 = yes, 0 = no)", HFILL }},
{ &hf_gtp3_flags_s, { "Is Sequence Number present? ", "gtp.flags.s", FT_UINT8, BASE_DEC, NULL, GTP3_S_MASK, "Is Sequence Number present? (1 = yes, 0 = no)", HFILL }},
{ &hf_gtp_flags_snn, { "Is SNDCP N-PDU included? ", "gtp.flags.snn", FT_UINT8, BASE_DEC, NULL, GTP_SNN_MASK, "Is SNDCP N-PDU LLC Number included? (1 = yes, 0 = no)", HFILL }},
{ &hf_gtp3_flags_pn, { "Is N-PDU number present? ", "gtp.flags.pn", FT_UINT8, BASE_DEC, NULL, GTP3_PN_MASK, "Is N-PDU number present? (1 = yes, 0 = no)", HFILL }},
{ &hf_gtp_message_type, { "Message Type ", "gtp.message", FT_UINT8, BASE_HEX, VALS(message_type), 0x0, "GTP Message Type", HFILL }},
{ &hf_gtp_length, { "Length ", "gtp.length", FT_UINT16, BASE_DEC, NULL, 0, "Length (i.e. number of octets after TID or TEID)", HFILL }},
{ &hf_gtp_seq_number, { "Sequence Number ", "gtp.seq_number", FT_UINT16, BASE_HEX, NULL, 0, "Sequence Number", HFILL }},
{ &hf_gtp_flow_label, { "Flow label ", "gtp.flow_label", FT_UINT16, BASE_HEX, NULL, 0, "Flow label", HFILL }},
{ &hf_gtp_sndcp_number, { "SNDCP N-PDU LLC Number ", "gtp.sndcp_number", FT_UINT8, BASE_HEX, NULL, 0, "SNDCP N-PDU LLC Number", HFILL }},
{ &hf_gtp_tid, { "TID ", "gtp.tid", FT_STRING, BASE_DEC, NULL, 0, "Tunnel Identifier", HFILL }},
{ &hf_gtp_teid, { "TEID ", "gtp.teid", FT_UINT32, BASE_HEX, NULL, 0, "Tunnel Endpoint Identifier", HFILL }},
{ &hf_gtp_ext, { "Extension header", "gtp.ext", FT_UINT8, BASE_HEX, NULL, 0, "Extension header", HFILL }},
{ &hf_gtp_npdu_number, { "N-PDU Number ", "gtp.npdu_number", FT_UINT8, BASE_HEX, NULL, 0, "N-PDU Number", HFILL }},
{ &hf_gtp_next, { "Next Extension Header Type ", "gtp.next", FT_UINT8, BASE_HEX, NULL, 0, "Next Extension Header Type", HFILL }},
{ &hf_gtp_ext_cause, { "Cause ", "gtp.ext.cause", FT_UINT8, BASE_DEC, VALS(cause_type), 0, "Cause of operation", HFILL }},
{ &hf_gtp_ext_imsi, { "IMSI", "gtp.ext.imsi", FT_STRING, BASE_DEC, NULL, 0, "International Mobile Subscriber Identity number", HFILL }},
{ &hf_gtp_ext_rai_mcc, { "MCC ", "gtp.ext.mcc", FT_UINT16, BASE_DEC, NULL, 0, "Mobile Country Code", HFILL }},
{ &hf_gtp_ext_rai_mnc, { "MNC ", "gtp.ext.mnc", FT_UINT8, BASE_DEC, NULL, 0, "Mobile Network Code", HFILL }},
{ &hf_gtp_ext_rai_rac, { "RAC ", "gtp.ext.rac", FT_UINT8, BASE_DEC, NULL, 0, "Routing Area Code", HFILL }},
{ &hf_gtp_ext_rai_lac, { "LAC ", "gtp.ext.lac", FT_UINT16, BASE_DEC, NULL, 0, "Location Area Code", HFILL }},
{ &hf_gtp_ext_tlli, { "TLLI ", "gtp.ext.tlli", FT_UINT32, BASE_HEX, NULL, 0, "Temporary Logical Link Identity", HFILL }},
{ &hf_gtp_ext_ptmsi, { "P-TMSI ", "gtp.ext.ptmsi", FT_UINT32, BASE_HEX, NULL, 0, "Packet-Temporary Mobile Subscriber Identity", HFILL }},
{ &hf_gtp_ext_qos_spare1, { "Spare ", "gtp.ext.qos_spare1", FT_UINT8, BASE_DEC, NULL, GTP_EXT_QOS_SPARE1_MASK, "Spare (shall be sent as '00' )", HFILL }},
{ &hf_gtp_ext_qos_delay, { "QoS Delay ", "gtp.ext.qos_delay", FT_UINT8, BASE_DEC, VALS(qos_delay_type), GTP_EXT_QOS_DELAY_MASK, "Quality of Service Delay Class", HFILL }},
{ &hf_gtp_ext_qos_reliability, { "QoS Reliability ", "gtp.ext.qos_reliabilty", FT_UINT8, BASE_DEC, VALS(qos_reliability_type), GTP_EXT_QOS_RELIABILITY_MASK, "Quality of Service Reliability Class", HFILL }},
{ &hf_gtp_ext_qos_peak, { "QoS Peak ", "gtp.ext.qos_peak", FT_UINT8, BASE_DEC, VALS(qos_peak_type), GTP_EXT_QOS_PEAK_MASK, "Quality of Service Peak Throughput", HFILL }},
{ &hf_gtp_ext_qos_spare2, { "Spare ", "gtp.ext.qos_spare2", FT_UINT8, BASE_DEC, NULL, GTP_EXT_QOS_SPARE2_MASK, "Spare (shall be sent as 0)", HFILL }},
{ &hf_gtp_ext_qos_precedence, { "QoS Precedence ", "gtp.ext.qos_precedence", FT_UINT8, BASE_DEC, VALS(qos_precedence_type), GTP_EXT_QOS_PRECEDENCE_MASK, "Quality of Service Precedence Class", HFILL }},
{ &hf_gtp_ext_qos_spare3, { "Spare ", "gtp.ext.qos_spare3", FT_UINT8, BASE_DEC, NULL, GTP_EXT_QOS_SPARE3_MASK, "Spare (shall be sent as '000' )", HFILL }},
{ &hf_gtp_ext_qos_mean, { "QoS Mean ", "gtp.ext.qos_mean", FT_UINT8, BASE_DEC, VALS(qos_mean_type), GTP_EXT_QOS_MEAN_MASK, "Quality of Service Mean Throughput", HFILL }},
{ &hf_gtp_ext_reorder, { "Reordering required ", "gtp.ext.reorder", FT_BOOLEAN, BASE_NONE,NULL, 0, "Reordering required", HFILL }},
{ &hf_gtp_ext_map_cause, { "MAP cause", "gtp.ext.map_cause", FT_UINT8, BASE_DEC, VALS(map_cause_type), 0, "MAP cause", HFILL }},
{ &hf_gtp_ext_ptmsi_sig, { "P-TMSI Signature ", "gtp.ext.ptmsi_sig", FT_UINT24, BASE_HEX, NULL, 0, "P-TMSI Signature", HFILL }},
{ &hf_gtp_ext_ms_valid, { "MS validated ", "gtp.ext.ms_valid", FT_BOOLEAN, BASE_NONE,NULL, 0, "MS validated", HFILL }},
{ &hf_gtp_ext_recover, { "Recovery ", "gtp.ext.recover", FT_UINT8, BASE_DEC, NULL, 0, "Restart counter", HFILL }},
{ &hf_gtp_ext_sel_mode, { "Selection Mode ", "gtp.ext.sel_mode", FT_UINT8, BASE_DEC, VALS(sel_mode_type), 0, "Selection Mode", HFILL }},
{ &hf_gtp_ext_flow_label, { "Flow Label Data I ", "gtp.ext.flow_label", FT_UINT16, BASE_DEC, NULL, 0, "Flow label data", HFILL }},
{ &hf_gtp3_ext_teid_data, { "TEID Data I ", "gtp3.ext.teid_data", FT_UINT32, BASE_HEX, NULL, 0, "Tunnel Endpoint Identifier Data I", HFILL }},
{ &hf_gtp_ext_flow_sig, { "Flow label Signalling ", "gtp.ext.flow_sig", FT_UINT16, BASE_DEC, NULL, 0, "Flow label signalling", HFILL }},
{ &hf_gtp3_ext_teid_cp, { "TEID Control Plane ", "gtp3.ext.teid_cp", FT_UINT32, BASE_HEX, NULL, 0, "Tunnel Endpoint Identifier Control Plane", HFILL }},
{ &hf_gtp_ext_nsapi, { "NSAPI ", "gtp.ext.nsapi", FT_UINT8, BASE_DEC, NULL, 0, "Network layer Service Access Point Identifier", HFILL }},
{ &hf_gtp_ext_flow_ii, { "Flow Label Data II ", "gtp.ext.flow_ii", FT_UINT16, BASE_DEC, NULL, 0, "Downlink flow label data", HFILL }},
{ &hf_gtp3_ext_teid_ii, { "TEID Data II ", "gtp3.ext.teid_ii", FT_UINT32, BASE_HEX, NULL, 0, "Tunnel Endpoint Identifier Data II", HFILL }},
{ &hf_gtp_ext_ms_reason, { "MS Not Reachable Reason ", "gtp.ext.ms_not", FT_UINT8, BASE_DEC, VALS(ms_not_reachable_type), 0, "MS Not Reachable Reason", HFILL }},
{ &hf_gtp3_ext_tear_ind, { "Teardown Indication ", "gtp3.ext.tear_ind", FT_BOOLEAN, BASE_NONE,NULL, 0, "Teardown Indication", HFILL }},
{ &hf_gtp3_ext_ranap_cause, { "RANAP cause", "gtp3.ext.ranap_cause", FT_UINT8, BASE_DEC, VALS(ranap_cause_type), 0, "RANAP cause", HFILL }},
{ &hf_gtp3_ext_rp_sms, { "Radio Priority SMS ", "gtp3.ext.rp_sms", FT_UINT8, BASE_DEC, NULL, 0, "Radio Priority for MO SMS", HFILL }},
{ &hf_gtp3_ext_rp_nsapi, { "NSAPI in Radio Priority ", "gtp3.ext.rp_nsapi", FT_UINT8, BASE_DEC, NULL, GTP3_EXT_RP_NSAPI_MASK, "Network layer Service Access Point Identifier in Radio Priority", HFILL }},
{ &hf_gtp3_ext_rp_spare, { "Reserved ", "gtp3.ext.rp_spare", FT_UINT8, BASE_DEC, NULL, GTP3_EXT_RP_SPARE_MASK, "Spare bit", HFILL }},
{ &hf_gtp3_ext_rp, { "Radio Priority ", "gtp3.ext.rp", FT_UINT8, BASE_DEC, NULL, GTP3_EXT_RP_MASK, "Radio Priority for uplink tx", HFILL }},
{ &hf_gtp3_ext_pkt_flow_id, { "Packet Flow ID", "gtp3.ext.pkt_flow_id", FT_UINT8, BASE_DEC, NULL, 0, "Packet Flow ID", HFILL }},
{ &hf_gtp3_ext_chrg_char_s, { "Spare ", "gtp3.ext.chrg_char_s", FT_UINT8, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_S, "Spare", HFILL }},
{ &hf_gtp3_ext_chrg_char_n, { "Normal charging ", "gtp3.ext.chrg_char_n", FT_UINT8, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_N, "Normal charging", HFILL }},
{ &hf_gtp3_ext_chrg_char_p, { "Prepaid charging ", "gtp3.ext.chrg_char_p", FT_UINT8, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_P, "Prepaid charging", HFILL }},
{ &hf_gtp3_ext_chrg_char_f, { "Flat rate charging ", "gtp3.ext.chrg_char_f", FT_UINT8, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_F, "Flat rate charging", HFILL }},
{ &hf_gtp3_ext_chrg_char_h, { "Hot billing charging ","gtp3.ext.chrg_char_h", FT_UINT8, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_H, "Hot billing charging", HFILL }},
{ &hf_gtp3_ext_chrg_char_r, { "Reserved ", "gtp3.ext.chrg_char_r", FT_UINT8, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_R, "Reserved", HFILL }},
{ &hf_gtp3_ext_trace_ref, { "Trace reference ", "gtp3.ext.trace_ref", FT_UINT16, BASE_HEX, NULL, 0, "Trace reference", HFILL }},
{ &hf_gtp3_ext_trace_type, { "Trace type ", "gtp3.ext.trace_type", FT_UINT16, BASE_HEX, NULL, 0, "Trace type", HFILL }},
{ &hf_gtp3_ext_ms_reason, { "MS not reachable reason ", "gtp3.ext.ms_not", FT_UINT8, BASE_DEC, VALS(ms_not_reachable_type), 0, "MS not reachable reason", HFILL }},
{ &hf_gtp_ext_tr_comm, { "Packet transfer command ", "gtp.ext.tr_comm", FT_UINT8, BASE_DEC, VALS(tr_comm_type), 0, "Packat transfer command", HFILL }},
{ &hf_gtp_ext_chrg_id, { "Charging ID ", "gtp.ext.chrg_id", FT_UINT32, BASE_HEX, NULL, 0, "Charging ID", HFILL }},
{ &hf_gtp_ext_user_ipv4, { "End user address IPv4 ", "gtp.ext.user_ipv4", FT_IPv4, BASE_DEC, NULL, 0, "End user address IPv4", HFILL }},
{ &hf_gtp_ext_user_ipv6, { "End user address IPv6 ", "gtp.ext.user_ipv6", FT_IPv6, BASE_HEX, NULL, 0, "End user address IPv6", HFILL }},
{ &hf_gtp_ext_user_addr_pdp_org,{ "PDP type organization ", "gtp.ext.user_addr_pdp_org",FT_UINT8, BASE_DEC, VALS(pdp_org_type), 0, "PDP type organization", HFILL }},
{ &hf_gtp_ext_user_addr_pdp_type,{ "PDP type number ","gtp.ext.user_addr_pdp_type", FT_UINT8, BASE_HEX, VALS(pdp_type), 0, "PDP type", HFILL }},
{ &hf_gtp_ext_apn, { "APN ", "gtp.ext.apn", FT_STRING, BASE_DEC, NULL, 0, "Access Point Name", HFILL }},
{ &hf_gtp_ext_proto_conf, { "Protocol conf", "gtp.ext.proto_conf", FT_STRING, BASE_DEC, NULL, 0, "Protocol configuration options", HFILL }},
{ &hf_gtp_ext_gsn_addr_type, { "GSN Address Type ", "gtp.ext.gsn_addr_type", FT_UINT8, BASE_DEC, VALS(gsn_addr_type), GTP_EXT_GSN_ADDR_TYPE_MASK, "GSN Address Type", HFILL }},
{ &hf_gtp_ext_gsn_addr_len, { "GSN Address Length ", "gtp.ext.gsn_addr_len", FT_UINT8, BASE_DEC, NULL, GTP_EXT_GSN_ADDR_LEN_MASK, "GSN Address Length", HFILL }},
{ &hf_gtp_ext_gsn_ipv4, { "GSN address IPv4 ", "gtp.ext.gsn_ipv4", FT_IPv4, BASE_DEC, NULL, 0, "GSN address IPv4", HFILL }},
{ &hf_gtp_ext_gsn_ipv6, { "GSN address IPv6 ", "gtp.ext.gsn_ipv6", FT_IPv6, BASE_DEC, NULL, 0, "GSN address IPv6", HFILL }},
{ &hf_gtp_ext_msisdn, { "MSISDN ", "gtp.ext.msisdn", FT_STRING, BASE_DEC, NULL, 0, "MS international PSTN/ISDN number", HFILL }},
{ &hf_gtp_ext_qos_al_ret_priority, { "Allocation/Retention Priority ","gtp.ext.qos_al_ret_priority", FT_UINT8, BASE_DEC, NULL, 0, "Allocation/Retention Priority", HFILL }},
{ &hf_gtp_ext_qos_traf_class, { "Traffic Class ", "gtp.ext.qos_traf_class", FT_UINT8, BASE_DEC, VALS(qos_traf_class), GTP_EXT_QOS_TRAF_CLASS_MASK, "Traffic Class", HFILL }},
{ &hf_gtp_ext_qos_del_order, { "Delivery Order ", "gtp.ext.qos_del_order", FT_UINT8, BASE_DEC, VALS(qos_del_order), GTP_EXT_QOS_DEL_ORDER_MASK, "Delivery Order", HFILL }},
{ &hf_gtp_ext_qos_del_err_sdu, { "Delivery of Erroneous SDU ","gtp.ext.qos_del_err_sdu", FT_UINT8, BASE_DEC, VALS(qos_del_err_sdu), GTP_EXT_QOS_DEL_ERR_SDU_MASK, "Delivery of Erroneous SDU", HFILL }},
{ &hf_gtp_ext_qos_max_sdu_size, { "Maximum SDU size ", "gtp.ext.qos_max_sdu_size", FT_UINT8, BASE_DEC, VALS(qos_max_sdu_size), 0, "Maximum SDU size", HFILL }},
{ &hf_gtp_ext_qos_max_ul, { "Maximum bit rate for uplink ","gtp.ext.qos_max_ul", FT_UINT8, BASE_DEC, VALS(qos_max_ul), 0, "Maximum bit rate for uplink", HFILL }},
{ &hf_gtp_ext_qos_max_dl, { "Maximum bit rate for downlink ","gtp.ext.qos_max_dl", FT_UINT8, BASE_DEC, VALS(qos_max_dl), 0, "Maximum bit rate for downlink", HFILL }},
{ &hf_gtp_ext_qos_res_ber, { "Residual BER ", "gtp.ext.qos_res_ber", FT_UINT8, BASE_DEC, VALS(qos_res_ber), GTP_EXT_QOS_RES_BER_MASK, "Residual Bit Error Rate", HFILL }},
{ &hf_gtp_ext_qos_sdu_err_ratio,{ "SDU Error Ratio ", "gtp.ext.qos_sdu_err_ratio", FT_UINT8, BASE_DEC, VALS(qos_sdu_err_ratio), GTP_EXT_QOS_SDU_ERR_RATIO_MASK, "SDU Error Ratio", HFILL }},
{ &hf_gtp_ext_qos_trans_delay, { "Transfer Delay ", "gtp.ext.qos_trans_delay", FT_UINT8, BASE_DEC, VALS(qos_trans_delay), GTP_EXT_QOS_TRANS_DELAY_MASK, "Transfer Delay", HFILL }},
{ &hf_gtp_ext_qos_traf_handl_priority,{ "Traffic Handling Priority ","gtp.ext.qos_traf_handl_priority", FT_UINT8, BASE_DEC, VALS(qos_traf_handl_priority), GTP_EXT_QOS_TRAF_HANDL_PRIORITY_MASK, "Traffic Handling Priority", HFILL }},
{ &hf_gtp_ext_qos_guar_ul, { "Guaranteed bit rate for uplink ", "gtp.ext.qos_guar_ul", FT_UINT8, BASE_DEC, VALS(qos_guar_ul), 0, "Guaranteed bit rate for uplink", HFILL }},
{ &hf_gtp_ext_qos_guar_dl, { "Guaranteed bit rate for downlink ", "gtp.ext.qos_guar_dl", FT_UINT8, BASE_DEC, VALS(qos_guar_dl), 0, "Guaranteed bit rate for downlink", HFILL }},
{ &hf_gtp_ext_rnc_ipv4, { "RNC address IPv4 ", "gtp.ext.rnc_ipv4", FT_IPv4, BASE_DEC, NULL, 0, "Radio Network Controller address IPv4", HFILL }},
{ &hf_gtp_ext_rnc_ipv6, { "RNC address IPv6 ", "gtp.ext.rnc_ipv6", FT_IPv6, BASE_HEX, NULL, 0, "Radio Network Controller address IPv6", HFILL }},
{ &hf_gtp_ext_chrg_ipv4, { "CG address IPv4", "gtp.ext.chrg_ipv4", FT_IPv4, BASE_DEC, NULL, 0, "Charging Gateway address IPv4", HFILL }},
{ &hf_gtp_ext_chrg_ipv6, { "CG address IPv6", "gtp.ext.chrg_ipv6", FT_IPv6, BASE_HEX, NULL, 0, "Charging Gateway address IPv6", HFILL }},
{ &hf_gtp_ext_node_ipv4, { "Node address IPv4", "gtp.ext.node_ipv4", FT_IPv4, BASE_DEC, NULL, 0, "Recommended node address IPv4", HFILL }},
{ &hf_gtp_ext_node_ipv6, { "Node address IPv6", "gtp.ext.node_ipv6", FT_IPv6, BASE_HEX, NULL, 0, "Recommended node address IPv6", HFILL }},
{ &hf_gtp_ext_ext_id, { "Extensio Identifier ", "gtp.ext.ext_id", FT_UINT16, BASE_DEC, NULL, 0, "Extensio Identifier", HFILL }},
{ &hf_gtp_ext_ext_val, { "Extension Value ", "gtp.ext.ext_val", FT_STRING, BASE_DEC, NULL, 0, "Extension Value", HFILL }},
{ &hf_gtp_ext_unknown, { "Unknown data (length)", "gtp.ext.unknown", FT_UINT16, BASE_DEC, NULL, 0, "Unknown data", HFILL }},
};
static gint *ett[] = {
&ett_gtp,
&ett_gtp_flags,
&ett_gtp_ext,
&ett_gtp_ext_rai,
&ett_gtp_ext_qos,
&ett_gtp_ext_auth_tri,
&ett_gtp_ext_flow_ii,
&ett_gtp_ext_rab_cntxt,
&ett_gtp_ext_rp,
&ett_gtp_ext_pkt_flow_id,
&ett_gtp_ext_chrg_char,
&ett_gtp_ext_user,
&ett_gtp_ext_mm,
&ett_gtp_ext_trip,
&ett_gtp_ext_quint,
&ett_gtp_ext_pdp,
&ett_gtp_ext_apn,
&ett_gtp_ext_proto,
&ett_gtp_ext_gsn_addr,
&ett_gtp_ext_tft,
&ett_gtp_ext_tft_pf,
&ett_gtp_ext_rab_setup,
&ett_gtp_ext_hdr_list,
&ett_gtp_ext_chrg_addr,
&ett_gtp_ext_node_addr,
&ett_gtp_ext_rel_pack,
&ett_gtp_ext_can_pack,
&ett_gtp_ext_data_resp,
&ett_gtp_ext_priv_ext,
&ett_gtp3,
&ett_gtp3_flags,
};
module_t *gtp_module;
static enum_val_t gtp_options[] = {
{ "GSM 12.15", 0 },
{ "Nokia CDR", 1 },
{ "None", 2 },
{ NULL, -1 }
};
proto_gtp = proto_register_protocol("GPRS Tunnelling Protocol v0", "GTP", "gtp_v0");
proto_gtp3 = proto_register_protocol("GPRS Tunnelling Protocol v1", "GTPv1", "gtp_v1");
proto_register_field_array(proto_gtp, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
gtp_module = prefs_register_protocol(proto_gtp, proto_reg_handoff_gtp);
prefs_register_uint_preference(gtp_module, "gtp_port", "GTP v0 port ", "GPRS GTP port (default 3386)", 10, &g_gtp_port);
prefs_register_uint_preference(gtp_module, "gtp3c_port", "GTP v1 control plane (GTP-C) port ", "3G GTP control plane port (default 2123)", 10, &g_gtp3c_port);
prefs_register_uint_preference(gtp_module, "gtp3u_port", "GTP v1 user plane (GTP-U) port ", "3G GTP user plane port (default 2152)", 10, &g_gtp3u_port);
prefs_register_bool_preference(gtp_module, "gtp_dissect_tpdu", "Dissect T-PDU ", "Dissect T-PDU", &gtp_tpdu);
prefs_register_enum_preference(gtp_module, "gtp_dissect_cdr_as", "Dissect CDRs as ", "Dissect CDRs as", &gtp_cdr_as, gtp_options, FALSE);
prefs_register_bool_preference(gtp_module, "gtp_check_etsi", "Compare GTP v0 order with ETSI ", "ETSI order", &gtp_etsi_order);
prefs_register_bool_preference(gtp_module, "gtp3_check_etsi", "Compare GTP v1 order with ETSI ", "3G ETSI order", &gtp3_etsi_order);
prefs_register_bool_preference(gtp_module, "ppp_reorder", "Reorder & dissect PPP in Protocol conf. options", "PPP reorder & dissect", &ppp_reorder);
register_dissector("gtp", dissect_gtp, proto_gtp);
register_dissector("gtp3", dissect_gtp3, proto_gtp3);
}
void
proto_reg_handoff_gtp(void)
{
static int Initialized = FALSE;
if (Initialized) {
dissector_delete("udp.port", gtp_port, dissect_gtp);
dissector_delete("tcp.port", gtp_port, dissect_gtp);
dissector_delete("udp.port", gtp3c_port, dissect_gtp3);
dissector_delete("tcp.port", gtp3c_port, dissect_gtp3);
dissector_delete("udp.port", gtp3u_port, dissect_gtp3);
dissector_delete("tcp.port", gtp3u_port, dissect_gtp3);
} else {
Initialized = TRUE;
}
gtp_port = g_gtp_port;
gtp3c_port = g_gtp3c_port;
gtp3u_port = g_gtp3u_port;
/* GTP v0 */
dissector_add("udp.port", g_gtp_port, dissect_gtp, proto_gtp);
dissector_add("tcp.port", g_gtp_port, dissect_gtp, proto_gtp);
/* GTP v1 */
dissector_add("udp.port", g_gtp3c_port, dissect_gtp3, proto_gtp3);
dissector_add("tcp.port", g_gtp3c_port, dissect_gtp3, proto_gtp3);
dissector_add("udp.port", g_gtp3u_port, dissect_gtp3, proto_gtp3);
dissector_add("tcp.port", g_gtp3u_port, dissect_gtp3, proto_gtp3);
ip_handle = find_dissector("ip");
ppp_handle = find_dissector("ppp");
}
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