| blob | d74497775382aa9df14af37e98a174bd733841b4 |
1 /* packet-gtpv2.c
2 *
3 * Routines for GTPv2 dissection
4 * Copyright 2009 - 2021, Anders Broman <anders.broman [at] ericsson.com>
5 *
6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
9 *
10 * SPDX-License-Identifier: GPL-2.0-or-later
11 *
12 * Ref: 3GPP TS 29.274 V18.7.0 (2024-06-26)
13 */
17 #include <math.h>
19 #include <epan/packet.h>
20 #include <epan/conversation.h>
21 #include <epan/to_str.h>
22 #include <epan/asn1.h>
23 #include <epan/expert.h>
24 #include <epan/sminmpec.h>
25 #include <epan/addr_resolv.h>
26 #include <epan/tap.h>
27 #include <epan/srt_table.h>
28 #include <epan/tfs.h>
29 #include <proto.h>
30 #include <unit_strings.h>
53 /*GTPv2 Message->GTP Header(SB)*/
60 //static int hf_gtpv2_spare_b7_b1;
90 /*Start SRVCC Messages*/
100 /*static int hf_gtpv2_kc; */
113 /*End SRVCC Messages*/
244 /* Trace Information */
245 /* static int hf_gtpv2_tra_info; */
481 /* MBMS */
561 /* Generated from convert_proto_tree_add_text.pl */
943 /* Definition of User Location Info (AVP 22) masks */
944 #define GTPv2_ULI_CGI_MASK 0x01
945 #define GTPv2_ULI_SAI_MASK 0x02
946 #define GTPv2_ULI_RAI_MASK 0x04
947 #define GTPv2_ULI_TAI_MASK 0x08
948 #define GTPv2_ULI_ECGI_MASK 0x10
949 #define GTPv2_ULI_LAI_MASK 0x20
950 #define GTPv2_ULI_MACRO_eNB_ID_MASK 0x40
951 #define GTPv2_ULI_EXT_MACRO_eNB_ID_MASK 0x80
953 #define GTPV2_PPI_VAL_MASK 0x3F
955 #define GTPV2_SRVCC_PS_TO_CS_REQUEST 25
956 #define GTPV2_SRVCC_PS_TO_CS_RESPONSE 26
957 #define GTPV2_SRVCC_PS_TO_CS_COMPLETE_NOTIFICATION 27
958 #define GTPV2_SRVCC_PS_TO_CS_COMPLETE_ACKNOWLEDGE 28
959 #define GTPV2_SRVCC_PS_TO_CS_CANCEL_NOTIFICATION 29
960 #define GTPV2_SRVCC_PS_TO_CS_CANCEL_ACKNOWLEDGE 30
961 #define GTPV2_CREATE_SESSION_REQUEST 32
962 #define GTPV2_CREATE_SESSION_RESPONSE 33
963 #define GTPV2_MODIFY_BEARER_REQUEST 34
964 #define GTPV2_MODIFY_BEARER_RESPONSE 35
965 #define GTPV2_DELETE_SESSION_REQUEST 36
966 #define GTPV2_DELETE_SESSION_RESPONSE 37
967 #define GTPV2_REMOTE_UE_REPORT_NOTIFICATION 40
968 #define GTPV2_REMOTE_UE_REPORT_ACKNOWLEDGE 41
969 #define GTPV2_MODIFY_BEARER_COMMAND 64
970 #define GTPV2_MODIFY_BEARER_FAILURE_INDICATION 65
971 #define GTPV2_DELETE_BEARER_COMMAND 66
972 #define GTPV2_DELETE_BEARER_FAILURE_INDICATION 67
973 #define GTPV2_BEARER_RESOURCE_COMMAND 68
974 #define GTPV2_BEARER_RESOURCE_FAILURE_INDICATION 69
975 #define GTPV2_CREATE_BEARER_REQUEST 95
976 #define GTPV2_CREATE_BEARER_RESPONSE 96
977 #define GTPV2_UPDATE_BEARER_REQUEST 97
978 #define GTPV2_UPDATE_BEARER_RESPONSE 98
979 #define GTPV2_DELETE_BEARER_REQUEST 99
980 #define GTPV2_DELETE_BEARER_RESPONSE 100
981 #define GTPV2_IDENTIFICATION_RESPONSE 129
982 #define GTPV2_CONTEXT_REQUEST 130
983 #define GTPV2_CONTEXT_RESPONSE 131
984 #define GTPV2_CONTEXT_ACKNOWLEDGE 132
985 #define GTPV2_FORWARD_RELOCATION_REQ 133
986 #define GTPV2_FORWARD_RELOCATION_RESP 134
987 #define GTPV2_FORWARD_RELOCATION_COMPLETE_NOTIFICATION 135
988 #define GTPV2_FORWARD_RELOCATION_COMPLETE_ACKNOWLEDGE 136
989 #define GTPV2_FORWARD_CTX_NOTIFICATION 137
990 #define GTPV2_FORWARD_CTX_ACKNOWLEDGE 138
991 #define GTPV2_RELOCATION_CANCEL_REQUEST 139
992 #define GTPV2_RELOCATION_CANCEL_RESPONSE 140
993 #define GTPV2_CONFIGURATION_TRANSFER_TUNNEL 141
994 #define GTPV2_RAN_INFORMATION_RELAY 152
995 #define GTPV2_DL_DATA_NOTIF_ACK 177
996 #define GTPV2_MODIFY_ACESSS_BEARER_REQUEST 211
997 #define GTPV2_MODIFY_ACCESS_BEARER_RESPONSE 212
999 /* Table 6.1-1: Message types for GTPv2 */
1005 /* 4-24 Reserved for S101 interface TS 29.276 */
1010 /* 25-31 Reserved for Sv interface TS 29.280 */
1011 /*Start SRVCC Messages ETSI TS 129 280 V10.1.0 (2011-06) 5.2.1*/
1019 /*End SRVCC Messages*/
1020 /* SGSN/MME to PGW (S4/S11, S5/S8) */
1027 /* SGSN/MME to PGW (S4/S11, S5/S8) */
1030 /* MME to PGW (S11, S5/S8) */
1033 /* 42-63 For future use */
1034 /* Messages without explicit response */
1045 /* 74-94 For future use */
1046 /* PGW to SGSN/MME/ TWAN/ePDG (S5/S8, S4/S11, S2a, S2b) */
1053 /* PGW to MME, MME to PGW, SGW to PGW, SGW to MME (S5/S8, S11) */
1056 /* PGW to SGSN/MME(S5, S4/S11) */
1059 /* 105-127 For future use */
1060 /* MME to MME, SGSN to MME, MME to SGSN, SGSN to SGSN (S3/10/S16) */
1075 /* 142-148 For future use */
1076 /* SGSN to MME, MME to SGSN (S3)*/
1088 /* MME to SGW (S11) */
1101 /* 172-175 For future use */
1102 /* SGW to SGSN/MME (S4/S11) */
1108 /* 181-199 For future use */
1109 /* SGW to PGW, PGW to SGW (S5/S8) */
1112 /* 202 to 210 For future use */
1113 /* MME to SGW (S11) */
1116 /* 213 to 230 For future use */
1117 /* MBMS GW to MME/SGSN (Sm/Sn) */
1124 /* 237 to 239 For future use */
1125 /* Reserved for Sv interface (see also types 25 to 31) TS 29.280 */
1131 /* 245 to 247 For future Sv interface use*/
1132 /* 248 to 255 For future use */
1134 };
1135 static value_string_ext gtpv2_message_type_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_message_type_vals);
1137 #define NUM_GTPV2_IES 256
1140 #define GTPV2_IE_RESERVED 0
1141 #define GTPV2_IE_IMSI 1
1142 #define GTPV2_IE_CAUSE 2
1143 #define GTPV2_REC_REST_CNT 3
1144 /*Start SRVCC Messages*/
1145 #define GTPV2_IE_STN_SR 51
1146 #define GTPV2_IE_SRC_TGT_TRANS_CON 52
1147 #define GTPV2_IE_TGT_SRC_TRANS_CON 53
1148 #define GTPV2_IE_MM_CON_EUTRAN_SRVCC 54
1149 #define GTPV2_IE_MM_CON_UTRAN_SRVCC 55
1150 #define GTPV2_IE_SRVCC_CAUSE 56
1151 #define GTPV2_IE_TGT_RNC_ID 57
1152 #define GTPV2_IE_TGT_GLOGAL_CELL_ID 58
1153 #define GTPV2_IE_TEID_C 59
1154 #define GTPV2_IE_SV_FLAGS 60
1155 #define GTPV2_IE_SAI 61
1156 #define GTPV2_IE_MM_CTX_FOR_CS_TO_PS_SRVCC 62
1157 /* 61 - 70 for future sv interface use*/
1158 /*End SRVCC Messages*/
1159 #define GTPV2_APN 71
1160 #define GTPV2_AMBR 72
1161 #define GTPV2_EBI 73
1162 #define GTPV2_IP_ADDRESS 74
1163 #define GTPV2_MEI 75
1164 #define GTPV2_IE_MSISDN 76
1165 #define GTPV2_INDICATION 77
1166 #define GTPV2_PCO 78
1167 #define GTPV2_PAA 79
1168 #define GTPV2_BEARER_QOS 80
1169 #define GTPV2_IE_FLOW_QOS 81
1170 #define GTPV2_IE_RAT_TYPE 82
1171 #define GTPV2_IE_SERV_NET 83
1172 #define GTPV2_IE_BEARER_TFT 84
1173 #define GTPV2_IE_TAD 85
1174 #define GTPV2_IE_ULI 86
1175 #define GTPV2_IE_F_TEID 87
1176 #define GTPV2_IE_TMSI 88
1177 #define GTPV2_IE_GLOBAL_CNID 89
1178 #define GTPV2_IE_S103PDF 90
1179 #define GTPV2_IE_S1UDF 91
1180 #define GTPV2_IE_DEL_VAL 92
1181 #define GTPV2_IE_BEARER_CTX 93
1182 #define GTPV2_IE_CHAR_ID 94
1183 #define GTPV2_IE_CHAR_CHAR 95
1184 #define GTPV2_IE_TRA_INFO 96
1185 #define GTPV2_BEARER_FLAG 97
1186 /* define GTPV2_IE_PAGING_CAUSE 98 (void) */
1187 #define GTPV2_IE_PDN_TYPE 99
1188 #define GTPV2_IE_PTI 100
1189 #define GTPV2_IE_DRX_PARAM 101
1190 #define GTPV2_IE_UE_NET_CAPABILITY 102
1191 #define GTPV2_IE_MM_CONTEXT_GSM_T 103
1192 #define GTPV2_IE_MM_CONTEXT_UTMS_CQ 104
1193 #define GTPV2_IE_MM_CONTEXT_GSM_CQ 105
1194 #define GTPV2_IE_MM_CONTEXT_UTMS_Q 106
1195 #define GTPV2_IE_MM_CONTEXT_EPS_QQ 107
1196 #define GTPV2_IE_MM_CONTEXT_UTMS_QQ 108
1197 #define GTPV2_IE_PDN_CONNECTION 109
1198 #define GTPV2_IE_PDN_NUMBERS 110
1199 #define GTPV2_IE_P_TMSI 111
1200 #define GTPV2_IE_P_TMSI_SIG 112
1201 #define GTPV2_IE_HOP_COUNTER 113
1202 #define GTPV2_IE_UE_TIME_ZONE 114
1203 #define GTPV2_IE_TRACE_REFERENCE 115
1204 #define GTPV2_IE_COMPLETE_REQUEST_MSG 116
1205 #define GTPV2_IE_GUTI 117
1206 #define GTPV2_IE_F_CONTAINER 118
1207 #define GTPV2_IE_F_CAUSE 119
1208 #define GTPV2_IE_PLMN_ID 120
1209 #define GTPV2_IE_TARGET_ID 121
1210 /* GTPV2_IE_NSAPI 122 */
1211 #define GTPV2_IE_PKT_FLOW_ID 123
1212 #define GTPV2_IE_RAB_CONTEXT 124
1213 #define GTPV2_IE_S_RNC_PDCP_CTX_INFO 125
1214 #define GTPV2_IE_PORT_NR 126
1215 #define GTPV2_IE_APN_RESTRICTION 127
1216 #define GTPV2_IE_SEL_MODE 128
1217 #define GTPV2_IE_SOURCE_IDENT 129
1218 #define GTPV2_IE_BEARER_CONTROL_MODE 130
1219 #define GTPV2_IE_CNG_REP_ACT 131
1220 #define GTPV2_IE_FQ_CSID 132
1221 #define GTPV2_IE_CHANNEL_NEEDED 133
1222 #define GTPV2_IE_EMLPP_PRI 134
1223 #define GTPV2_IE_NODE_TYPE 135
1224 #define GTPV2_IE_FQDN 136
1225 #define GTPV2_IE_TI 137
1226 #define GTPV2_IE_MBMS_SESSION_DURATION 138
1227 #define GTPV2_IE_MBMS_SERVICE_AREA 139
1228 #define GTPV2_IE_MBMS_SESSION_ID 140
1229 #define GTPV2_IE_MBMS_FLOW_ID 141
1230 #define GTPV2_IE_MBMS_IP_MC_DIST 142
1231 #define GTPV2_IE_MBMS_DIST_ACK 143
1232 #define GTPV2_IE_RFSP_INDEX 144
1233 #define GTPV2_IE_UCI 145
1234 #define GTPV2_IE_CSG_INFO_REP_ACTION 146
1235 #define GTPV2_IE_CSG_ID 147
1236 #define GTPV2_IE_CMI 148
1237 #define GTPV2_IE_SERVICE_INDICATOR 149
1238 #define GTPV2_IE_DETACH_TYPE 150
1239 #define GTPV2_IE_LDN 151
1240 #define GTPV2_IE_NODE_FEATURES 152
1241 #define GTPV2_IE_MBMS_TIME_TO_DATA_XFER 153
1242 #define GTPV2_IE_THROTTLING 154
1243 #define GTPV2_IE_ARP 155
1244 #define GTPV2_IE_EPC_TIMER 156
1245 #define GTPV2_IE_SIG_PRIO_IND 157
1246 #define GTPV2_IE_TMGI 158
1247 #define GTPV2_IE_ADD_MM_CONT_FOR_SRVCC 159
1248 #define GTPV2_IE_ADD_FLAGS_FOR_SRVCC 160
1249 #define GTPV2_IE_MMBR 161
1250 #define GTPV2_IE_MDT_CONFIG 162
1251 #define GTPV2_IE_APCO 163
1252 #define GTPV2_IE_ABS_MBMS_DATA_TF_TIME 164
1253 #define GTPV2_IE_HENB_INFO_REPORT 165
1254 #define GTPV2_IE_IP4CP 166
1255 #define GTPV2_IE_CHANGE_TO_REPORT_FLAGS 167
1256 #define GTPV2_IE_ACTION_INDICATION 168
1257 #define GTPV2_IE_TWAN_IDENTIFIER 169
1258 #define GTPV2_IE_ULI_TIMESTAMP 170
1259 #define GTPV2_IE_MBMS_FLAGS 171
1260 #define GTPV2_IE_RAN_NAS_CAUSE 172
1261 #define GTPV2_IE_CN_OP_SEL_ENT 173
1262 #define GTPV2_IE_TRUST_WLAN_MODE_IND 174
1263 #define GTPV2_IE_NODE_NUMBER 175
1264 #define GTPV2_IE_NODE_IDENTIFIER 176
1265 #define GTPV2_IE_PRES_REP_AREA_ACT 177
1266 #define GTPV2_IE_PRES_REP_AREA_INF 178
1267 #define GTPV2_IE_TWAN_ID_TS 179
1268 #define GTPV2_IE_OVERLOAD_CONTROL_INF 180
1269 #define GTPV2_IE_LOAD_CONTROL_INF 181
1270 #define GTPV2_IE_METRIC 182
1271 #define GTPV2_IE_SEQ_NO 183
1272 #define GTPV2_IE_APN_AND_REL_CAP 184
1273 #define GTPV2_IE_WLAN_OFFLOADABILITY_IND 185
1274 #define GTPV2_IE_PAGING_AND_SERVICE_INF 186
1275 #define GTPV2_IE_INTEGER_NUMBER 187
1276 #define GTPV2_IE_MILLISECOND_TS 188
1277 #define GTPV2_IE_MON_EVENT_INF 189
1278 /*
1279 190 ECGI List
1280 191 Remote UE Context
1281 192 Remote User ID
1282 193 Remote UE IP information
1283 */
1284 #define GTPV2_IE_CIOT_OPT_SUPPORT_IND 194
1285 #define GTPV2_IE_SCEF_PDN_CONNECTION 195
1286 #define GTPV2_IE_HEADER_COMP_CONF 196
1287 #define GTPV2_IE_EXTENDED_PCO 197
1288 #define GTPV2_IE_SERV_PLMN_RATE_CONTROL 198
1289 #define GTPV2_IE_COUNTER 199
1290 #define GTPV2_IE_MAPPED_UE_USAGE_TYPE 200
1291 #define GTPV2_IE_SECONDARY_RAT_USAGE_DATA_REPORT 201
1292 #define GTPV2_IE_UP_FUNC_SEL_INDI_FLG 202
1293 #define GTPV2_IE_MAX_PKT_LOSS_RTE 203
1294 #define GTPV2_IE_APN_RTE_CNTRL_STATUS 204
1295 #define GTPV2_IE_EXT_TRS_INF 205
1296 #define GTPV2_IE_MON_EVENT_EXT_INF 206
1297 #define GTPV2_IE_ADDITIONAL_RRM_POLICY_INDEX 207
1298 #define GTPV2_IE_V2X_CONTEXT 208
1299 #define GTPV2_IE_PC5_QOS_PARAMETERS 209
1300 #define GTPV2_IE_SERVICES_AUTHORIZED 210
1301 #define GTPV2_IE_BIT_RATE 211
1302 #define GTPV2_IE_PC5_QOS_FLOW 212
1303 #define GTPV2_IE_SGI_PTP_TUNNEL_ADDRESS 213
1304 #define GTPV2_IE_PGW_CHANGE_INFO 214
1305 #define GTPV2_IE_PGW_FQDN 215
1306 #define GTPV2_IE_GROUP_ID 216
1307 #define GTPV2_IE_PSCELL_ID 217
1308 #define GTPV2_IE_UP_SECURITY_POLICY 218
1309 #define GTPV2_IE_ALT_IMSI 219
1310 #define GTPV2_IE_NF_INSTANCE_ID 220
1311 #define GTPV2_IE_TIMER_IN_SECONDS 221
1312 /*
1313 220 to 253 Spare. For future use.
1314 254 Special IE type for IE Type Extension
1315 255 Private Extension
1316 256 to 65535 Spare. For future use.
1318 */
1319 /* 169 to 254 reserved for future use */
1320 #define GTPV2_IE_PRIVATE_EXT 255
1322 #define SPARE 0X0
1323 #define CREATE_NEW_TFT 0X20
1324 #define DELETE_TFT 0X40
1325 #define ADD_PACKET_FILTERS_TFT 0X60
1326 #define REPLACE_PACKET_FILTERS_TFT 0X80
1327 #define DELETE_PACKET_FILTERS_TFT 0XA0
1328 #define NO_TFT_OPERATION 0XC0
1329 #define RESERVED 0XE0
1331 /* SRVCC PS-to-CS Transparent Container Preference */
1332 #define PREF_DECODE_SRVCC_P2C_TRANS_CONT_NO 0
1333 #define PREF_DECODE_SRVCC_P2C_TRANS_CONT_TARGET_UTRAN 1
1338 /* Table 8.1-1: Information Element types for GTPv2 */
1344 /* 4-34 Reserved for S101 interface Extendable / See 3GPP TS 29.276 [14] */
1345 /* 35-50 / See 3GPP TS 29.276 */
1346 /*Start SRVCC Messages ETSI TS 129 280 V10.1.0 (2011-06) 6.1*/
1359 /* 63-70 For future Sv interface use */
1360 /*End SRVCC Messages*/
1397 {107, "MM Context (EPS Security Context, Quadruplets and Quintuplets)"}, /* Variable Length / 8.38 */
1512 /* 222 to 254 Spare. For future use. */
1515 };
1516 static value_string_ext gtpv2_element_type_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_element_type_vals);
1525 /* Data structure attached to a conversation,
1526 to keep track of request/response-pairs
1527 */
1533 /*structure used to track responses to requests using sequence number*/
1543 static unsigned
1545 {
1549 }
1551 static int
1553 {
1557 nstime_t delta;
1561 }
1565 }
1572 }
1575 }
1577 static int
1579 {
1583 nstime_t delta;
1590 }
1593 }
1597 static void
1599 {
1602 }
1606 }
1608 static tap_packet_status
1609 gtpv2_stat_packet(void *pss, packet_info *pinfo, epan_dissect_t *edt _U_, const void *prv, tap_flags_t flags _U_)
1610 {
1617 /* We are only interested in matched reply packets. */
1620 }
1623 }
1627 /* XXX: It would be nice if srt_table handled hashing so that the
1628 * real procedure number could be displayed in the table without
1629 * having to add empty rows for unused message types and responses
1630 * (requests and responses have different message types, and we
1631 * only use the request value.)
1632 */
1633 idx = GPOINTER_TO_UINT(g_hash_table_lookup(gtpv2_stat_msg_idx_hash, GUINT_TO_POINTER(gcrp->msgtype)));
1635 /* Store the row value incremented by 1 to distinguish 0 from NULL */
1638 g_hash_table_insert(gtpv2_stat_msg_idx_hash, GUINT_TO_POINTER(gcrp->msgtype), GUINT_TO_POINTER(idx + 1));
1639 init_srt_table_row(gtpv2_srt_table, idx, val_to_str_ext_const(gcrp->msgtype, >pv2_message_type_vals_ext, "Unknown"));
1642 }
1647 }
1649 /* Make this a common function ???*/
1650 static void
1652 {
1654 }
1656 /* Add Info element on IE types with multiple instances in same group */
1665 /* IE types which defines with multiple instances in ch7.2 Tunnel Management Messages and ch7.3 Mobility Management Messages */
1666 static const gtpv2_information_element_instance_t gtpv2_information_element_instance_vals[] = {
1668 { GTPV2_CREATE_SESSION_REQUEST, 0, GTPV2_IE_F_TEID, 1, "PGW S5/S8 Address for Control Plane or PMIP" },
1686 { GTPV2_CREATE_SESSION_REQUEST, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 0, "MME/S4-SGSN Overload Control Info" },
1687 { GTPV2_CREATE_SESSION_REQUEST, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 1, "SGW Overload Control Info" },
1688 { GTPV2_CREATE_SESSION_REQUEST, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 2, "TWAN/ePDG Overload Control Info" },
1696 { GTPV2_CREATE_SESSION_RESPONSE, 0, GTPV2_IE_F_TEID, 1, "PGW S5/S8 Address for Control Plane or PMIP" },
1703 { GTPV2_CREATE_SESSION_RESPONSE, 0, GTPV2_IE_LOAD_CONTROL_INF, 0, "PGW node level Load Control Info" },
1704 { GTPV2_CREATE_SESSION_RESPONSE, 0, GTPV2_IE_LOAD_CONTROL_INF, 1, "PGW APN level Load Control Info" },
1705 { GTPV2_CREATE_SESSION_RESPONSE, 0, GTPV2_IE_LOAD_CONTROL_INF, 2, "SGW node level Load Control Info" },
1706 { GTPV2_CREATE_SESSION_RESPONSE, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 0, "PGW Overload Control Info" },
1707 { GTPV2_CREATE_SESSION_RESPONSE, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 1, "SGW Overload Control Info" },
1713 { GTPV2_CREATE_SESSION_RESPONSE, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IE_PGW_FQDN, 0, "PGW Set FQDN" },
1714 { GTPV2_CREATE_SESSION_RESPONSE, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IE_PGW_FQDN, 1, "Alternative PGW-C/SMF FQDN" },
1715 { GTPV2_CREATE_SESSION_RESPONSE, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IP_ADDRESS, 0, "Alternative PGW-C/SMF Address" },
1719 { GTPV2_CREATE_BEARER_REQUEST, 0, GTPV2_IE_LOAD_CONTROL_INF, 0, "PGW node level Load Control Info" },
1720 { GTPV2_CREATE_BEARER_REQUEST, 0, GTPV2_IE_LOAD_CONTROL_INF, 1, "PGW APN level Load Control Info" },
1721 { GTPV2_CREATE_BEARER_REQUEST, 0, GTPV2_IE_LOAD_CONTROL_INF, 2, "SGW node level Load Control Info" },
1722 { GTPV2_CREATE_BEARER_REQUEST, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 0, "PGW Overload Control Info" },
1723 { GTPV2_CREATE_BEARER_REQUEST, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 1, "SGW Overload Control Info" },
1724 { GTPV2_CREATE_BEARER_REQUEST, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IE_PGW_FQDN, 0, "PGW Set FQDN" },
1725 { GTPV2_CREATE_BEARER_REQUEST, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IE_PGW_FQDN, 1, "Alternative PGW-C/SMF FQDN" },
1726 { GTPV2_CREATE_BEARER_REQUEST, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IP_ADDRESS, 0, "Alternative PGW-C/SMF Address" },
1727 { GTPV2_CREATE_BEARER_REQUEST, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IP_ADDRESS, 1, "New PGW-C/SMF Address" },
1728 { GTPV2_CREATE_BEARER_REQUEST, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IP_ADDRESS, 2, "New PGW Control Plane IP Address" },
1729 { GTPV2_CREATE_BEARER_REQUEST, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IP_ADDRESS, 3, "New SGW-C Address" },
1731 { GTPV2_CREATE_BEARER_REQUEST, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IE_GROUP_ID, 1, "New Group Id" },
1737 { GTPV2_CREATE_BEARER_RESPONSE, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 0, "MME/S4-SGSN Overload Control Info" },
1738 { GTPV2_CREATE_BEARER_RESPONSE, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 1, "SGW Overload Control Info" },
1739 { GTPV2_CREATE_BEARER_RESPONSE, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 2, "TWAN/ePDG Overload Control Info" },
1748 { GTPV2_BEARER_RESOURCE_COMMAND, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 0, "MME/S4-SGSN Overload Control Info" },
1749 { GTPV2_BEARER_RESOURCE_COMMAND, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 1, "SGW Overload Control Info" },
1751 { GTPV2_BEARER_RESOURCE_FAILURE_INDICATION, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 0, "PGW Overload Control Info" },
1752 { GTPV2_BEARER_RESOURCE_FAILURE_INDICATION, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 1, "SGW Overload Control Info" },
1763 { GTPV2_MODIFY_BEARER_REQUEST, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 0, "MME/S4-SGSN Overload Control Info" },
1764 { GTPV2_MODIFY_BEARER_REQUEST, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 1, "SGW Overload Control Info" },
1765 { GTPV2_MODIFY_BEARER_REQUEST, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 2, "ePDG Overload Control Info" },
1767 { GTPV2_MODIFY_BEARER_REQUEST, 0, GTPV2_IE_ULI, 1, "User Location Info for SGW" }, /* redundant ? */
1775 { GTPV2_MODIFY_BEARER_RESPONSE, 0, GTPV2_IE_LOAD_CONTROL_INF, 0, "PGW node level Load Control Info" },
1776 { GTPV2_MODIFY_BEARER_RESPONSE, 0, GTPV2_IE_LOAD_CONTROL_INF, 1, "PGW APN level Load Control Info" },
1777 { GTPV2_MODIFY_BEARER_RESPONSE, 0, GTPV2_IE_LOAD_CONTROL_INF, 2, "SGW node level Load Control Info" },
1778 { GTPV2_MODIFY_BEARER_RESPONSE, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 0, "PGW Overload Control Info" },
1779 { GTPV2_MODIFY_BEARER_RESPONSE, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 1, "SGW Overload Control Info" },
1780 { GTPV2_MODIFY_BEARER_RESPONSE, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IE_PGW_FQDN, 0, "PGW Set FQDN" },
1781 { GTPV2_MODIFY_BEARER_RESPONSE, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IE_PGW_FQDN, 1, "Alternative PGW-C/SMF FQDN" },
1782 { GTPV2_MODIFY_BEARER_RESPONSE, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IP_ADDRESS, 0, "Alternative PGW-C/SMF Address" },
1785 { GTPV2_DELETE_SESSION_REQUEST, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 0, "MME/S4-SGSN Overload Control Info" },
1786 { GTPV2_DELETE_SESSION_REQUEST, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 1, "SGW Overload Control Info" },
1787 { GTPV2_DELETE_SESSION_REQUEST, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 2, "TWAN/ePDG Overload Control Info" },
1798 { GTPV2_DELETE_BEARER_REQUEST, 0, GTPV2_IE_LOAD_CONTROL_INF, 0, "PGW node level Load Control Info" },
1799 { GTPV2_DELETE_BEARER_REQUEST, 0, GTPV2_IE_LOAD_CONTROL_INF, 1, "PGW APN level Load Control Info" },
1800 { GTPV2_DELETE_BEARER_REQUEST, 0, GTPV2_IE_LOAD_CONTROL_INF, 2, "SGW node level Load Control Info" },
1801 { GTPV2_DELETE_BEARER_REQUEST, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 0, "PGW Overload Control Info" },
1802 { GTPV2_DELETE_BEARER_REQUEST, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 1, "SGW Overload Control Info" },
1803 { GTPV2_DELETE_BEARER_REQUEST, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IE_PGW_FQDN, 0, "PGW Set FQDN" },
1804 { GTPV2_DELETE_BEARER_REQUEST, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IE_PGW_FQDN, 1, "Alternative PGW-C/SMF FQDN" },
1805 { GTPV2_DELETE_BEARER_REQUEST, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IP_ADDRESS, 0, "Alternative PGW-C/SMF Address" },
1806 { GTPV2_DELETE_BEARER_REQUEST, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IP_ADDRESS, 1, "New PGW-C/SMF Address" },
1807 { GTPV2_DELETE_BEARER_REQUEST, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IP_ADDRESS, 2, "New PGW Control Plane IP Address" },
1808 { GTPV2_DELETE_BEARER_REQUEST, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IP_ADDRESS, 3, "New SGW-C Address" },
1810 { GTPV2_DELETE_BEARER_REQUEST, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IE_GROUP_ID, 1, "New Group Id" },
1812 { GTPV2_DELETE_SESSION_RESPONSE, 0, GTPV2_IE_LOAD_CONTROL_INF, 0, "PGW node level Load Control Info" },
1813 { GTPV2_DELETE_SESSION_RESPONSE, 0, GTPV2_IE_LOAD_CONTROL_INF, 1, "PGW APN level Load Control Info" },
1814 { GTPV2_DELETE_SESSION_RESPONSE, 0, GTPV2_IE_LOAD_CONTROL_INF, 2, "SGW node level Load Control Info" },
1815 { GTPV2_DELETE_SESSION_RESPONSE, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 0, "PGW Overload Control Info" },
1816 { GTPV2_DELETE_SESSION_RESPONSE, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 1, "SGW Overload Control Info" },
1823 { GTPV2_DELETE_BEARER_RESPONSE, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 0, "MME/S4-SGSN Overload Control Info" },
1824 { GTPV2_DELETE_BEARER_RESPONSE, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 1, "SGW Overload Control Info" },
1825 { GTPV2_DELETE_BEARER_RESPONSE, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 2, "TWAN/ePDG Overload Control Info" },
1832 { GTPV2_MODIFY_BEARER_COMMAND, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 0, "MME/S4-SGSN Overload Control Info" },
1833 { GTPV2_MODIFY_BEARER_COMMAND, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 1, "SGW Overload Control Info" },
1834 { GTPV2_MODIFY_BEARER_COMMAND, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 2, "TWAN/ePDG Overload Control Info" },
1836 { GTPV2_MODIFY_BEARER_FAILURE_INDICATION, 0, GTPV2_IE_LOAD_CONTROL_INF, 0, "PGW node level Load Control Info" },
1837 { GTPV2_MODIFY_BEARER_FAILURE_INDICATION, 0, GTPV2_IE_LOAD_CONTROL_INF, 1, "SGW node level Load Control Info" },
1841 { GTPV2_UPDATE_BEARER_REQUEST, 0, GTPV2_IE_LOAD_CONTROL_INF, 0, "PGW node level Load Control Info" },
1842 { GTPV2_UPDATE_BEARER_REQUEST, 0, GTPV2_IE_LOAD_CONTROL_INF, 1, "PGW APN level Load Control Info" },
1843 { GTPV2_UPDATE_BEARER_REQUEST, 0, GTPV2_IE_LOAD_CONTROL_INF, 2, "SGW node level Load Control Info" },
1844 { GTPV2_UPDATE_BEARER_REQUEST, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 0, "PGW Overload Control Info" },
1845 { GTPV2_UPDATE_BEARER_REQUEST, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 1, "SGW Overload Control Info" },
1846 { GTPV2_UPDATE_BEARER_REQUEST, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IE_PGW_FQDN, 0, "PGW Set FQDN" },
1847 { GTPV2_UPDATE_BEARER_REQUEST, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IE_PGW_FQDN, 1, "Alternative PGW-C/SMF FQDN" },
1848 { GTPV2_UPDATE_BEARER_REQUEST, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IP_ADDRESS, 0, "Alternative PGW-C/SMF Address" },
1849 { GTPV2_UPDATE_BEARER_REQUEST, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IP_ADDRESS, 1, "New PGW-C/SMF Address" },
1850 { GTPV2_UPDATE_BEARER_REQUEST, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IP_ADDRESS, 2, "New PGW Control Plane IP Address" },
1851 { GTPV2_UPDATE_BEARER_REQUEST, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IP_ADDRESS, 3, "New SGW-C Address" },
1853 { GTPV2_UPDATE_BEARER_REQUEST, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IE_GROUP_ID, 1, "New Group Id" },
1859 { GTPV2_UPDATE_BEARER_RESPONSE, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 0, "MME/S4-SGSN Overload Control Info" },
1860 { GTPV2_UPDATE_BEARER_RESPONSE, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 1, "SGW Overload Control Info" },
1861 { GTPV2_UPDATE_BEARER_RESPONSE, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 2, "TWAN/ePDG Overload Control Info" },
1868 { GTPV2_DELETE_BEARER_COMMAND, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 0, "MME/S4-SGSN Overload Control Info" },
1869 { GTPV2_DELETE_BEARER_COMMAND, 0, GTPV2_IE_OVERLOAD_CONTROL_INF, 1, "SGW Overload Control Info" },
1871 { GTPV2_DELETE_BEARER_FAILURE_INDICATION, 0, GTPV2_IE_LOAD_CONTROL_INF, 0, "PGW node level Load Control Info" },
1872 { GTPV2_DELETE_BEARER_FAILURE_INDICATION, 0, GTPV2_IE_LOAD_CONTROL_INF, 1, "SGW node level Load Control Info" },
1874 { GTPV2_MODIFY_ACESSS_BEARER_REQUEST, 0, GTPV2_IE_BEARER_CTX, 0, "Bearer Contexts to be Modified" },
1875 { GTPV2_MODIFY_ACESSS_BEARER_REQUEST, 0, GTPV2_IE_BEARER_CTX, 1, "Bearer Contexts to be Removed" },
1877 { GTPV2_MODIFY_ACCESS_BEARER_RESPONSE, 0, GTPV2_IE_BEARER_CTX, 0, "Bearer Contexts to be Modified" },
1878 { GTPV2_MODIFY_ACCESS_BEARER_RESPONSE, 0, GTPV2_IE_BEARER_CTX, 1, "Bearer Contexts to be Removed" },
1893 { GTPV2_FORWARD_RELOCATION_REQ, 0, GTPV2_IE_ADDITIONAL_RRM_POLICY_INDEX, 0, "Subscribed Additional RRM Policy Index" },
1894 { GTPV2_FORWARD_RELOCATION_REQ, 0, GTPV2_IE_ADDITIONAL_RRM_POLICY_INDEX, 1, "Additional RRM Policy Index in Use" },
1896 { GTPV2_FORWARD_RELOCATION_REQ, GTPV2_IE_PDN_CONNECTION, GTPV2_IE_FQDN, 1, "Local Home Network ID" },
1897 { GTPV2_FORWARD_RELOCATION_REQ, GTPV2_IE_V2X_CONTEXT, GTPV2_IE_SERVICES_AUTHORIZED, 0, "LTE V2X Service Authorized" },
1898 { GTPV2_FORWARD_RELOCATION_REQ, GTPV2_IE_V2X_CONTEXT, GTPV2_IE_SERVICES_AUTHORIZED, 1, "NR V2X Service Authorized" },
1899 { GTPV2_FORWARD_RELOCATION_REQ, GTPV2_IE_V2X_CONTEXT, GTPV2_IE_BIT_RATE, 0, "LTE UE Sidelink Aggregate Maximum Bit Rate" },
1900 { GTPV2_FORWARD_RELOCATION_REQ, GTPV2_IE_V2X_CONTEXT, GTPV2_IE_BIT_RATE, 1, "NR UE Sidelink Aggregate Maximum Bit Rate" },
1901 { GTPV2_FORWARD_RELOCATION_REQ, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IE_PGW_FQDN, 0, "PGW Set FQDN" },
1902 { GTPV2_FORWARD_RELOCATION_REQ, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IE_PGW_FQDN, 1, "Alternative PGW-C/SMF FQDN" },
1903 { GTPV2_FORWARD_RELOCATION_REQ, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IP_ADDRESS, 0, "Alternative PGW-C/SMF Address" },
1904 { GTPV2_FORWARD_RELOCATION_REQ, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IP_ADDRESS, 1, "New PGW-C/SMF Address" },
1909 { GTPV2_FORWARD_RELOCATION_RESP, 0, GTPV2_IE_BEARER_CTX, 2, "List of Set-up Bearers for SCEF PDN Connections" },
1913 { GTPV2_FORWARD_RELOCATION_RESP, 0, GTPV2_IE_F_CONTAINER, 0, "E-UTRAN Transparent Container" },
1920 { GTPV2_FORWARD_RELOCATION_RESP, 0, GTPV2_IE_NODE_IDENTIFIER, 2, "SGSN Identifier for MT-SMS" },
1921 { GTPV2_FORWARD_RELOCATION_RESP, 0, GTPV2_IE_NODE_IDENTIFIER, 3, "MME Identifier for MT-SMS" },
1926 { GTPV2_FORWARD_RELOCATION_COMPLETE_ACKNOWLEDGE, 0, GTPV2_IE_SECONDARY_RAT_USAGE_DATA_REPORT, 0, "Secondary RAT Usage Data Report" },
1927 { GTPV2_FORWARD_RELOCATION_COMPLETE_ACKNOWLEDGE, 0, GTPV2_IE_SECONDARY_RAT_USAGE_DATA_REPORT, 1, "Secondary RAT Usage Data Report from NG-RAN" },
1942 { GTPV2_CONTEXT_RESPONSE, 0, GTPV2_IE_INTEGER_NUMBER, 1, "Remaining Running Service Gap Timer" },
1943 { GTPV2_CONTEXT_RESPONSE, 0, GTPV2_IE_ADDITIONAL_RRM_POLICY_INDEX, 0, "Subscribed Additional RRM Policy Index" },
1944 { GTPV2_CONTEXT_RESPONSE, 0, GTPV2_IE_ADDITIONAL_RRM_POLICY_INDEX, 1, "Additional RRM Policy Index in Use" },
1946 { GTPV2_CONTEXT_RESPONSE, GTPV2_IE_PDN_CONNECTION, GTPV2_IE_FQDN, 1, "Local Home Network ID" },
1948 { GTPV2_CONTEXT_RESPONSE, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IE_PGW_FQDN, 1, "Alternative PGW-C/SMF FQDN" },
1949 { GTPV2_CONTEXT_RESPONSE, GTPV2_IE_PGW_CHANGE_INFO, GTPV2_IP_ADDRESS, 0, "Alternative PGW-C/SMF Address" },
1956 { GTPV2_CONFIGURATION_TRANSFER_TUNNEL, 0, GTPV2_IE_TARGET_ID, 0, "Target eNodeB ID / en-gNB ID / gnB ID" },
1957 { GTPV2_CONFIGURATION_TRANSFER_TUNNEL, 0, GTPV2_IE_TARGET_ID, 1, "Connected Target eNodeB ID" },
1960 };
1962 #define NUM_GTPV2_IE_INFO_ELEM_INSTANCES array_length(gtpv2_information_element_instance_vals)
1964 /* Code to dissect IE's */
1966 static void
1967 dissect_gtpv2_unknown(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
1968 {
1970 }
1972 /*
1973 * 8.3 International Mobile Subscriber Identity (IMSI)
1974 *
1975 * IMSI is defined in 3GPP TS 23.003
1976 * Editor's note: IMSI coding will be defined in 3GPP TS 24.301
1977 * Editor's note: In the first release of GTPv2 spec (TS 29.274v8.0.0) n = 8.
1978 * That is, the overall length of the IE is 11 octets.
1979 */
1981 static void
1982 dissect_gtpv2_imsi(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
1983 {
1987 /* Fetch the BCD encoded digits from tvb low half byte, formating the digits according to
1988 * a default digit set of 0-9 returning "?" for overdecadic digits a pointer to the wmem
1989 * allocated string will be returned.
1990 */
1994 }
1996 /*
1997 * 8.4 Cause
1998 */
2000 /* Table 8.4-1: Cause values */
2003 /* Request / Initial message */
2019 /* Acceptance in a Response / triggered message */
2024 /* 20-63 Spare. This value range shall be used by Cause values in an acceptance response/triggered message */
2069 /* Rejection in a Response / triggered message */
2111 {105, "Invalid overall length of the triggered response message and a piggybacked initial message"},
2139 /* 132-239 Spare. For future use in a triggered/response message */
2140 /* 240-255 Spare. For future use in an initial/request message */
2142 };
2145 /* Table 8.4-1: CS (Cause Source) */
2149 };
2151 static void
2152 dissect_gtpv2_cause(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args)
2153 {
2157 /* Cause value octet 5 */
2161 }
2164 /* Add Cause to ie_tree */
2165 proto_item_append_text(item, "%s (%u)", val_to_str_ext_const(tmp, >pv2_cause_vals_ext, "Unknown"), tmp);
2168 /* Octet 6 Spare PCE BCE CS */
2174 NULL
2175 };
2180 /* If n = 2, a = 0 and the Cause IE shall be 6 octets long.
2181 * Therefore, octets "a(n+1) to a(n+4)" will not be present.
2182 * If n = 6, a = 1 and the Cause IE will be 10 octets long.
2183 */
2186 }
2187 /*
2188 * If the rejection is due to a mandatory IE or a verifiable conditional IE is faulty
2189 * or missing, the offending IE shall be included within an additional field "a(n+1)
2190 * to a(n+4)". Only Type and Instance fields of the offending IE that caused the
2191 * rejection have a meaning. The length in the Octet 8-9 and spare bits in the Octet 10
2192 * shall be set to "0". In this case, the value of "n" shall be "6".
2193 * Otherwise, the value of "n" is equal to "2".
2194 */
2196 /* Type of the offending IE */
2200 /* Length */
2203 /* a(n+4) Spare Instance */
2204 proto_tree_add_bits_item(tree, hf_gtpv2_spare_half_octet, tvb, offset << 3, 4, ENC_BIG_ENDIAN);
2207 }
2209 /*
2210 * 8.5 Recovery (Restart Counter)
2211 */
2212 static void
2213 dissect_gtpv2_recovery(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
2214 {
2222 }
2225 /*Start SRVCC Messages*/
2227 /* 6.2 STN-SR */
2228 static void
2229 dissect_gtpv2_stn_sr(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
2230 {
2240 /* Octet 5
2241 * contains the Nature of Address and Numbering Plan Indicator (NANPI) of the "AddressString" ASN.1 type (see 3GPP
2242 * TS 29.002 [11]). Octets 6 to (n+4) contain the actual STN-SR (digits of an address encoded as a TBCD-STRING as in
2243 * the "AddressString" ASN.1 type). For an odd number of STN-SR digits, bits 8 to 5 of the last octet are encoded with the
2244 * filler "1111".
2245 */
2247 }
2249 /* 6.3 Source to Target Transparent Container */
2251 static void
2252 dissect_gtpv2_src_tgt_trans_con(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
2253 {
2258 /*ra_type_flag = 0;*/
2260 /* Transparent Container
2261 * When target network is GERAN, this container carries the Old BSS to New BSS
2262 * Information IE defined in 3GPP TS 48.008 [8]. When target network is UTRAN, this container carries the Source RNC
2263 * to Target RNC Transparent Container IE defined in 3GPP TS 25.413 [9]. The Transparent container field includes the
2264 * IE value part as it is specified in the respective specification.
2265 */
2267 /*
2268 * bssmap_old_bss_to_new_bss_info(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo);
2269 * dissect_ranap_SourceRNC_ToTargetRNC_TransparentContainer_PDU
2270 */
2271 if ((message_type == GTPV2_SRVCC_PS_TO_CS_REQUEST) && (pref_decode_srvcc_p2c_trans_cont == PREF_DECODE_SRVCC_P2C_TRANS_CONT_TARGET_UTRAN)) {
2275 sub_tree = proto_tree_add_subtree(tree, tvb, offset, length-1, ett_gtpv2_utran_con, NULL, "Source RNC to Target RNC Transparent Container");
2278 }
2280 }
2282 /* 6.4 Target to Source Transparent Container */
2283 static void
2284 dissect_gtpv2_tgt_src_trans_con(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
2285 {
2291 /* Transparent Container */
2294 /* It's too hard to figure out the content...
2295 6.4 Target to Source Transparent Container
2297 The Target to Source Transparent Container contains information that shall be transferred transparently by CN entities
2298 from the target RAN to the source RAN.
2300 When the target network is GERAN, the Transparent container field contains the value part of the Layer 3 Information
2301 IE defined in 3GPP TS 48.008 [8], i.e., octets 3 to n, excluding octet 1 (Element ID) and octet 2 (Length).
2303 When the target network is UTRAN, this container carries the Target RNC to Source RNC Transparent Container IE
2304 defined in 3GPP TS 25.413 [9]. The Transparent container field contains a transparent copy of the corresponding
2305 ASN.1/PER IE (see subclauses 8.2.2 and 8.48 in 3GPP TS 29.274 [3]).
2307 When the target network is E-UTRAN, the container carries the Target eNB To Source eNB Transparent Container IE
2308 defined in 3GPP TS 36.413 [14]. The Transparent container field contains a transparent copy of the corresponding
2309 ASN.1/PER IE (see subclauses 8.2.2 and 8.48 in 3GPP TS 29.274 [3]).
2311 The receiver of this Information Element shall ignore the length of the transparent container encoded in octet 5 and shall
2312 derive the actual length of the container from the length encoded in octets 2 to 3 minus 1.
2314 For backward compatibility, the sender of this Information Element shall set the octet 5 to the actual length of the
2315 transparent container if the size of the container is smaller or equal to 255 octets, and to the value "255" otherwise.
2317 */
2318 if ((message_type == GTPV2_SRVCC_PS_TO_CS_RESPONSE) && (pref_decode_srvcc_p2c_trans_cont == PREF_DECODE_SRVCC_P2C_TRANS_CONT_TARGET_UTRAN)) {
2322 sub_tree = proto_tree_add_subtree(tree, tvb, offset, length-1, ett_gtpv2_utran_con, NULL, "Target RNC to Source RNC Transparent Container");
2325 }
2327 }
2329 /* 6.5 MM Context for E-UTRAN SRVCC */
2330 static void
2331 dissect_gtpv2_mm_con_eutran_srvcc(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
2332 {
2344 /* For each of the Mobile Station Classmark 2, Mobile Station Classmark 3 and Supported Codec List parameters, if they are not available,
2345 then the associated length field shall be set to zero, and the particular parameter field shall not be present.
2346 */
2347 /* Length of Mobile Station Classmark2 */
2352 fi = proto_tree_add_item(tree, hf_gtpv2_mobile_station_classmark2, tvb, offset, elm_len, ENC_NA);
2356 }
2358 /* Length of Mobile Station Classmark3 */
2363 fi = proto_tree_add_item(tree, hf_gtpv2_mobile_station_classmark3, tvb, offset, elm_len, ENC_NA);
2367 }
2369 /*Length of Supported Codec List */
2377 }
2378 }
2380 /* 6.6 MM Context for UTRAN SRVCC */
2381 static void
2382 dissect_gtpv2_mm_con_utran_srvcc(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
2383 {
2400 /* For each of the Mobile Station Classmark 2, Mobile Station Classmark 3 and Supported Codec List parameters, if they are not available,
2401 then the associated length field shall be set to zero, and the particular parameter field shall not be present.
2402 */
2404 /*Length of Mobile Station Classmark2 */
2409 fi = proto_tree_add_item(tree, hf_gtpv2_mobile_station_classmark2, tvb, offset, elm_len, ENC_NA);
2413 }
2415 /*Length of Mobile Station Classmark3 */
2420 fi = proto_tree_add_item(tree, hf_gtpv2_mobile_station_classmark3, tvb, offset, elm_len, ENC_NA);
2424 }
2426 /*Length of Supported Codec List */
2434 }
2436 }
2438 /* 6.7 SRVCC Cause */
2453 };
2454 static value_string_ext gtpv2_srvcc_cause_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_srvcc_cause_vals);
2456 static void
2457 dissect_gtpv2_srvcc_cause(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
2458 {
2464 proto_item_append_text(item, "%s (%u)", val_to_str_ext_const(srvcc_cause, >pv2_srvcc_cause_vals_ext, "Unknown"), srvcc_cause);
2466 }
2468 /*
2469 * 3GPP TS 29.280 version 10.3.0
2470 * 6.8 Target RNC ID
2471 */
2472 static void
2473 dissect_gtpv2_tgt_rnc_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
2474 {
2509 /*curr_offset+=2;*/
2511 /* no length check possible */
2514 }
2516 /*
2517 * 3GPP TS 29.280
2518 * 6.9 Target Global Cell ID
2519 * The encoding of this IE is defined in 3GPP TS 29.002
2520 * GlobalCellId ::= OCTET STRING (SIZE (5..7))
2521 * -- Refers to Cell Global Identification defined in TS 3GPP TS 23.003 [17].
2522 * -- The internal structure is defined as follows:
2523 * -- octet 1 bits 4321 Mobile Country Code 1st digit
2524 * -- bits 8765 Mobile Country Code 2nd digit
2525 * -- octet 2 bits 4321 Mobile Country Code 3rd digit
2526 * -- bits 8765 Mobile Network Code 3rd digit
2527 * -- or filler (1111) for 2 digit MNCs
2528 * -- octet 3 bits 4321 Mobile Network Code 1st digit
2529 * -- bits 8765 Mobile Network Code 2nd digit
2530 * -- octets 4 and 5 Location Area Code according to TS 3GPP TS 24.008 [35]
2531 * -- octets 6 and 7 Cell Identity (CI) according to TS 3GPP TS 24.008 [35]
2532 */
2533 static void
2534 dissect_gtpv2_tgt_global_cell_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
2535 {
2569 /* no length check possible */
2571 }
2573 /* 6.10 Tunnel Endpoint Identifier for Control Plane (TEID-C) */
2574 static void
2575 dissect_gtpv2_teid_c(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
2576 {
2585 }
2587 /* 6.11 Sv Flags */
2588 static void
2589 dissect_gtpv2_sv_flags(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
2590 {
2596 NULL
2597 };
2603 }
2605 /* 6.12 Service Area Identifier */
2607 static void
2608 dissect_gtpv2_sai(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
2609 {
2612 /* 5 MCC digit 2 MCC digit 1
2613 * 6 MNC digit 3 MCC digit 3
2614 * 7 MNC digit 2 MNC digit 1
2615 */
2619 /* The Location Area Code (LAC) consists of 2 octets. Bit 8 of Octet 8 is the most significant bit and bit 1 of Octet 9 the
2620 * least significant bit. The coding of the location area code is the responsibility of each administration. Coding using full
2621 * hexadecimal representation shall be used.
2622 */
2626 /* The Service Area Code (SAC) consists of 2 octets. Bit 8 of Octet 10 is the most significant bit and bit 1 of Octet 11 the
2627 * least significant bit. The SAC is defined by the operator. See 3GPP TS 23.003 [4] subclause 12.5 for more information
2628 */
2630 }
2632 /* 6.13 MM Context for CS to PS SRVCC */
2633 static void
2634 dissect_gtpv2_mm_ctx_for_cs_to_ps_srvcc(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
2635 {
2638 /* Octet 5 KSI"PS */
2640 offset++;
2642 /* octet 6 - 21 CK'PS */
2646 /* octet 22 - 37 IK'PS */
2650 /* octet 38 to 45 kc'PS */
2654 /* Octet 46 CKSN"PS */
2656 /*offset++;*/
2658 }
2659 /*End SRVCC Messages*/
2662 /*
2663 * 8.6 Access Point Name (APN)
2664 * The encoding the APN field follows 3GPP TS 23.003 [2] subclause 9.1.
2665 * The content of the APN field shall be the full APN with both the APN Network Identifier
2666 * and APN Operator Identifier being present as specified in 3GPP TS 23.003 [2]
2667 * subclauses 9.1.1 and 9.1.2, 3GPP TS 23.060 [35] Annex A and 3GPP TS 23.401 [3] subclauses 4.3.8.1.
2668 */
2669 void
2670 dissect_gtpv2_apn(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
2671 {
2674 proto_tree_add_item_ret_string(tree, hf_gtpv2_apn, tvb, 0, length, ENC_APN_STR | ENC_NA, pinfo->pool, &apn);
2677 }
2679 }
2681 /*
2682 * 8.7 Aggregate Maximum Bit Rate (AMBR)
2683 */
2685 void
2686 dissect_gtpv2_ambr(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
2687 {
2693 }
2695 /*
2696 * 8.8 EPS Bearer ID (EBI)
2697 */
2698 static void
2699 dissect_gtpv2_ebi(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
2700 {
2705 /* Spare (all bits set to 0) B8 - B5*/
2707 /* EPS Bearer ID (EBI) B4 - B1 */
2712 }
2713 /*
2714 * 8.9 IP Address
2715 */
2716 static void
2717 dissect_gtpv2_ip_address(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
2718 {
2722 {
2725 }
2727 {
2730 }
2731 }
2732 /*
2733 * 8.10 Mobile Equipment Identity (MEI)
2734 * The ME Identity field contains either the IMEI or the IMEISV
2735 * as defined in clause 6.2 of 3GPP TS 23.003 [2]. It is encoded
2736 * as specified in clause 7.7.53 of 3GPP TS 29.060 [4], beginning
2737 * with octet 4 of Figure 7.7.53.1. The IMEI(SV) digits are encoded
2738 * using BCD coding where IMEI is 15 BCD digits and IMEISV is 16 BCD
2739 * digits. For IMEI, bits 5 to 8 of the last octet shall be filled
2740 * with an end mark coded as '1111'.
2741 */
2743 void
2744 dissect_gtpv2_mei(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
2745 {
2749 /* Fetch the BCD encoded digits from tvb low half byte, formating the digits according to
2750 * a default digit set of 0-9 returning "?" for overdecadic digits a pointer to the EP
2751 * allocated string will be returned.
2752 */
2753 proto_tree_add_item_ret_display_string(tree, hf_gtpv2_mei, tvb, offset, length, ENC_BCD_DIGITS_0_9|ENC_LITTLE_ENDIAN, pinfo->pool, &mei_str);
2755 }
2757 /*
2758 * 8.11 MSISDN
2759 *
2760 * MSISDN is defined in 3GPP TS 23.003
2761 * Editor's note: MSISDN coding will be defined in TS 24.301.
2762 */
2763 static void
2764 dissect_gtpv2_msisdn(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
2765 {
2768 /* Octets 5 to (n+4) represent the MSISDN value is in international number format
2769 * as described in ITU-T Rec E.164 [25] and 3GPP TS 29.002 [41].
2770 * MSISDN value contains only the actual MSISDN number (does not contain the "nature of
2771 * address indicator" octet, which indicates "international number"
2772 * as in 3GPP TS 29.002 [41]) and is encoded as TBCD digits, i.e.
2773 * digits from 0 through 9 are encoded "0000" to "1001".
2774 * When there is an odd number of digits, bits 8 to 5 of the last octet are encoded with
2775 * the filler "1111".
2776 */
2777 /* Fetch the BCD encoded digits from tvb low half byte, formating the digits according to
2778 * a default digit set of 0-9 returning "?" for overdecadic digits a pointer to the EP
2779 * allocated string will be returned.
2780 */
2783 }
2785 /*
2786 * 8.12 Indication
2787 */
2788 void
2789 dissect_gtpv2_ind(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
2790 {
2802 NULL
2803 };
2805 /* Octet 5 DAF DTF HI DFI OI ISRSI ISRAI SGWCI */
2808 proto_tree_add_expert_format(tree, pinfo, &ei_gtpv2_ie_len_invalid, tvb, 0, length, "Older version?, should be 2 octets in 8.0.0");
2810 }
2823 NULL
2824 };
2826 /* Octet 6 SQCI UIMSI CFSI CRSI P PT SI MSV
2827 * 3GPP TS 29.274 version 9.4.0 Release 9
2828 */
2835 }
2836 /* Only present in version 9 and higher */
2846 NULL
2847 };
2849 /* Octet 7 RetLoc PBIC SRNI S6AF S4AF MBMDT ISRAU CCRSI */
2855 }
2865 NULL
2866 };
2868 /* Octet 8 CPRAI ARRL PPOF PPON/PPEI PPSI CSFBI CLII CPSR */
2874 }
2885 NULL
2886 };
2888 /* Octet 9 NSI UASI DTCI BDWI PSCI PCRI AOSI AOPI */
2894 }
2905 NULL
2906 };
2907 /* Octet 10 ROAAI EPCOSI CPOPCI PMTSMI S11TF PNSI UNACCSI WPMSI */
2913 }
2924 NULL
2925 };
2926 /*Octet 11 5GSNN26 REPREFI 5GSIWK EEVRSI LTEMUI LTEMPI ENBCRSI TSPCMI */
2932 }
2943 NULL
2944 };
2945 /* Octet 12 CSRMFI MTEDTN MTEDTA N5GNMI 5GCNRS 5GCNRI 5SRHOI ETHPDN */
2952 }
2963 NULL
2964 };
2966 /* Octet 13 NSOUSI PGWRNSI RPPCSI PGWCHI SISSME NSENBI IDFUPF EMCI */
2972 }
2980 NULL
2981 };
2983 /* Octet 13 Spare LAPCOSI LTEMSAI SRTPI UPIPSI */
2989 }
2991 proto_tree_add_expert_format(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, -1, "The rest of the IE not dissected yet");
2994 }
2996 /*
2997 * 8.13 Protocol Configuration Options (PCO)
2998 * Protocol Configuration Options (PCO) is transferred via GTP tunnels. The sending entity copies the value part of the
2999 * PCO into the Value field of the PCO IE. The detailed coding of the PCO field from octets 5 to (n+4) shall be specified
3000 * as per clause 10.5.6.3 of 3GPP TS 24.008 [5], starting with octet 3.
3001 * Dissected in packet-gsm_a_gm.c
3002 */
3003 static void
3004 dissect_gtpv2_pco(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
3005 {
3013 /* PCO options as MS to network direction */
3022 /* PCO options as Network to MS direction: */
3027 }
3029 }
3031 /*
3032 * 8.14 PDN Address Allocation (PAA)
3033 */
3042 };
3045 void
3046 dissect_gtpv2_paa(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
3047 {
3055 {
3057 /* IPv4 */
3062 }
3067 /* IPv6*/
3068 /* If PDN type value indicates IPv6, octet 6 contains the IPv6 Prefix Length.
3069 * Octets 7 through 22 contain an IPv6 Prefix and Interface Identifier.
3070 * Bit 8 of octet 7 represents the most significant bit of the IPv6 Prefix
3071 * and Interface Identifier and bit 1 of octet 22 the least significant bit.
3072 */
3077 }
3084 /* IPv4/IPv6 */
3085 /* If PDN type value indicates IPv4v6, octet 6 contains the IPv6 Prefix Length.
3086 * Octets 7 through 22 contain an IPv6 Prefix and Interface Identifier.
3087 * Bit 8 of octet 7 represents the most significant bit of the IPv6 Prefix
3088 * and Interface Identifier and bit 1 of octet 22 the least significant bit.
3089 * Octets 23 through 26 contain an IPv4 address. Bit 8 of octet 23 represents
3090 * the most significant bit of the IPv4 address and bit 1 of octet 26 the least
3091 * significant bit.
3092 */
3097 }
3108 /* If PDN type value indicates Non-IP or Ethernet, octets from 6 to 'n+4'
3109 shall not be present. */
3114 }
3117 }
3118 }
3119 /*
3120 * 8.15 Bearer Quality of Service (Bearer QoS)
3121 */
3123 void
3124 dissect_gtpv2_bearer_qos(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
3125 {
3131 NULL
3132 };
3144 }
3146 /*
3147 * 8.16 Flow Quality of Service (Flow QoS)
3148 */
3150 static void
3151 dissect_gtpv2_flow_qos(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
3152 {
3163 }
3165 /*
3166 * 8.17 RAT Type
3167 */
3193 };
3197 static void
3198 dissect_gtpv2_rat_type(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
3199 {
3204 proto_item_append_text(item, "%s (%u)", val_to_str_ext_const(rat_type, >pv2_rat_type_vals_ext, "Unknown"), rat_type);
3206 }
3208 /*
3209 * 8.18 Serving Network
3210 */
3211 static void
3212 dissect_gtpv2_serv_net(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
3213 {
3218 }
3220 /*
3221 * 8.19 EPS Bearer Level Traffic Flow Template (Bearer TFT)
3222 */
3224 static void
3225 dissect_gtpv2_bearer_tft(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
3226 {
3227 /* The detailed coding of Traffic Aggregate
3228 * Description is specified in 3GPP TS 24.008 [5] ,
3229 * clause 10.5.6.12, beginning with octet 3..
3230 * Use the decoding in packet-gsm_a_gm.c
3231 */
3234 }
3235 /* 8.20 Traffic Aggregate Description (TAD)
3236 */
3237 static void
3238 dissect_gtpv2_tad(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
3239 {
3240 /* The detailed coding of Traffic Aggregate
3241 * Description is specified in 3GPP TS 24.008 [5] ,
3242 * clause 10.5.6.12, beginning with octet 3..
3243 * Use the decoding in packet-gsm_a_gm.c
3244 */
3246 }
3248 /*
3249 * 8.21 User Location Info (ULI)
3250 *
3251 * The flags ECGI, TAI, RAI, SAI and CGI in octed 5 indicate if the corresponding
3252 * fields are present in the IE or not. If one of these flags is set to "0",
3253 * the corresponding field is not present at all. The respective identities are defined in 3GPP
3254 * TS 23.003 [2].
3255 * Editor's Note: The definition of ECGI is missing in 3GPP TS 23.003 v8.1.0.
3256 * It can be found in 3GPP TS 36.413 v8.3.0, but it is expected that it will be moved
3257 * to 23.003 in a future version.
3258 */
3260 dissect_gtpv2_tai(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int *offset, bool is_5gs)
3261 {
3269 proto_tree_add_item_ret_uint(tree, hf_gtpv2_5gs_tai_tac, tvb, *offset, 3, ENC_BIG_ENDIAN, &tac);
3274 }
3276 mcc_mnc_str,
3277 tac);
3280 }
3284 {
3294 NULL
3295 };
3297 mcc_mnc_str = dissect_e212_mcc_mnc_wmem_packet_str(tvb, pinfo, tree, *offset, E212_ECGI, true);
3299 /* The bits 8 through 5, of octet e+3 (Fig 8.21.5-1 in TS 29.274 V8.2.0) are spare
3300 * and hence they would not make any difference to the hex string following it,
3301 * thus we directly read 4 bytes from the tvb
3302 */
3309 /* The coding of the E-UTRAN cell identifier is the responsibility of each administration.
3310 * Coding using full hexadecimal representation shall be used.
3311 */
3312 proto_tree_add_bitmask(tree, tvb, *offset, hf_gtpv2_ecgi_eci, ett_gtpv2_eci, ECGI_flags, ENC_BIG_ENDIAN);
3315 mcc_mnc_str,
3316 ECGI);
3320 }
3324 {
3334 /* 3GPP 29.274 8.21.3 RAI Field
3335 * "Only Octet c+5 contains the RAC. Octet c+6 is coded as all 1's (11111111)."
3336 * (We could, here and in GTP, check that the other octet is all 1's.)
3337 */
3342 mcc_mnc_str,
3343 lac,
3344 rac);
3347 }
3351 {
3365 mcc_mnc_str,
3366 lac,
3367 sac);
3370 }
3374 {
3388 mcc_mnc_str,
3389 lac,
3390 ci);
3393 }
3396 dissect_gtpv2_macro_enodeb_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int *offset)
3397 {
3402 mcc_mnc_str = dissect_e212_mcc_mnc_wmem_packet_str(tvb, pinfo, tree, *offset, E212_NONE, true);
3404 /* The Macro eNodeB ID consists of 20 bits.
3405 * Bit 4 of Octet 4 is the most significant bit and bit 1 of Octet 6 is the least significant bit.
3406 */
3407 proto_tree_add_item_ret_uint(tree, hf_gtpv2_macro_enodeb_id, tvb, *offset, 3, ENC_BIG_ENDIAN, ¯o_enodeb_id);
3411 mcc_mnc_str,
3412 macro_enodeb_id);
3415 }
3420 };
3423 dissect_gtpv2_ext_macro_enodeb_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int *offset, int hfindex)
3424 {
3429 mcc_mnc_str = dissect_e212_mcc_mnc_wmem_packet_str(tvb, pinfo, tree, *offset, E212_NONE, true);
3431 /* The Extended Macro eNodeB ID consists of 21 bits. */
3433 proto_tree_add_item_ret_uint(tree, hfindex, tvb, *offset, 3, ENC_BIG_ENDIAN, &ext_macro_enodeb_id);
3437 mcc_mnc_str,
3439 ext_macro_enodeb_id);
3442 }
3446 decode_gtpv2_uli(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, uint16_t length, uint8_t instance _U_, unsigned flags)
3447 {
3453 /* 8.21.1 CGI field */
3455 {
3465 }
3467 /* 8.21.2 SAI field */
3469 {
3478 }
3479 /* 8.21.3 RAI field */
3481 {
3490 }
3491 /* 8.21.4 TAI field */
3493 {
3502 }
3503 /* 8.21.5 ECGI field */
3505 {
3515 }
3516 /* 8.21.6 LAI field */
3518 {
3523 mcc_mnc_str = dissect_e212_mcc_mnc_wmem_packet_str(tvb, pinfo, part_tree, offset, E212_LAI, true);
3526 /* The Location Area Code (LAC) consists of 2 octets. Bit 8 of Octet f+3 is the most significant bit
3527 * and bit 1 of Octet f+4 the least significant bit. The coding of the location area code is the
3528 * responsibility of each administration. Coding using full hexadecimal representation shall be used.
3529 */
3533 mcc_mnc_str,
3534 lac);
3536 }
3537 /* 8.21.7 Macro eNodeB ID field */
3539 {
3548 }
3550 /* 8.21.8 Extended Macro eNodeB ID field */
3552 {
3557 str = dissect_gtpv2_ext_macro_enodeb_id(tvb, pinfo, part_tree, &offset, hf_gtpv2_ext_macro_enodeb_id);
3561 }
3565 }
3567 void
3568 dissect_gtpv2_uli(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
3569 {
3582 NULL
3583 };
3592 }
3594 /* Diameter 3GPP AVP Code: 22 3GPP-User-Location-Info */
3595 /*
3596 * TS 29.061 v15.5.0
3597 * 16.4.7.2 Coding 3GPP Vendor-Specific RADIUS attributes
3598 */
3615 /* 140-255 Spare for future use */
3617 };
3619 static int
3621 {
3633 offset++;
3636 {
3638 /* CGI */
3642 /* SAI */
3646 /* RAI */
3650 /* TAI */
3654 /* ECGI */
3658 /* TAI and ECGI */
3662 /* eNodeB ID */
3666 /* TAI and eNodeB ID */
3670 /* extended eNodeB ID */
3674 /* TAI and extended eNodeB ID */
3678 /* NCGI */
3679 {
3686 mcc_mnc_str = dissect_e212_mcc_mnc_wmem_packet_str(tvb, pinfo, subtree, offset, E212_NRCGI, true);
3688 proto_tree_add_item_ret_uint64(subtree, hf_gtpv2_ncgi_nrci, tvb, offset, 5, ENC_BIG_ENDIAN, &nr_cell_id);
3692 }
3695 /* 5GS TAI */
3696 {
3702 }
3705 /* 5GS TAI and NCGI */
3706 {
3716 mcc_mnc_str = dissect_e212_mcc_mnc_wmem_packet_str(tvb, pinfo, subtree, offset, E212_NRCGI, true);
3718 proto_tree_add_item_ret_uint64(subtree, hf_gtpv2_ncgi_nrci, tvb, offset, 5, ENC_BIG_ENDIAN, &nr_cell_id);
3722 }
3727 }
3731 }
3733 static const
3735 {
3741 }
3743 int
3745 {
3752 }
3753 }
3755 /*
3756 * 8.22 Fully Qualified TEID (F-TEID)
3757 */
3768 "and since alternate CoA is not used the control plane and user plane addresses are the same for PMIPv6)"}, */
3770 "and the control plane and user plane addresses are the same for PMIPv6)"}, */
3804 };
3805 static value_string_ext gtpv2_f_teid_interface_type_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_f_teid_interface_type_vals);
3810 };
3815 };
3817 static void
3818 dissect_gtpv2_f_teid(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t *args)
3819 {
3828 /* NOTE: "Interface type" IE is defined with 5 bits only in the earlier releases of this specification,
3829 * thus pre-Rel-10 GTPv2-C nodes can ignore bit "6" which is marked as "Spare" in earlier releases,
3830 * allowing backward compatibility.
3831 */
3835 proto_tree_add_item_ret_uint(tree, hf_gtpv2_f_teid_gre_key, tvb, offset, 4, ENC_BIG_ENDIAN, &teid_cp);
3842 {
3848 }
3850 {
3855 }
3860 /* We save the teid so that we could assignate its corresponding session ID later */
3866 }
3870 }
3874 }
3875 }
3876 }
3877 }
3878 /*
3879 * 8.23 TMSI
3880 */
3881 static void
3882 dissect_gtpv2_tmsi(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
3883 {
3886 }
3887 /*
3888 * 8.24 Global CN-Id
3889 * (TS 23.003)
3890 * 12.3 CN Identifier
3891 *
3892 * A CN node is uniquely identified within a PLMN by its CN Identifier (CN-Id). The CN-Id together with the PLMN
3893 * identifier globally identifies the CN node. The CN-Id together with the PLMN-Id is used as the CN node identifier in
3894 * RANAP signalling over the Iu interface.
3895 * Global CN-Id = PLMN-Id || CN-Id
3896 * The CN-Id is defined by the operator, and set in the nodes via O&M.
3897 * For the syntax description and the use of this identifier in RANAP signalling, see 3GPP TS 25.413 [17].
3898 */
3900 static void
3901 dissect_gtpv2_g_cn_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
3902 {
3908 /* >CN-ID M INTEGER (0..4095) */
3910 }
3911 /*
3912 * 8.25 S103 PDN Data Forwarding Info (S103PDF)
3913 */
3914 static void
3915 dissect_gtpv2_s103pdf(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
3916 {
3920 /* The HSGW Address and GRE Key identify a GRE Tunnel towards a HSGW over S103 interface for a specific PDN
3921 * connection of the UE. The EPS Bearer IDs specify the EPS Bearers which require data forwarding that belonging to this
3922 * PDN connection. The number of EPS bearer Ids included is specified by the value of EPS Bearer ID Number.
3923 */
3924 /* Octet 5 HSGW Address for forwarding Length = m */
3929 /* 6 to (m+5) HSGW Address for forwarding [4..16] */
3932 /* IPv4 */
3937 /* IPv6 */
3942 /* Error */
3946 }
3948 /* (m+6)- to (m+9) GRE Key */
3952 /* (m+10) EPS Bearer ID Number = k */
3957 /* (m+11) to (m+10+k)
3958 * Spare EPS Bearer ID
3959 */
3964 }
3966 }
3967 /*
3968 * 8.26 S1-U Data Forwarding (S1UDF)
3969 */
3970 static void
3971 dissect_gtpv2_s1udf(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
3972 {
3976 /* 5 Spare EPS Bearer ID */
3980 /* 6 Serving GW Address Length = m */
3984 /* 7 to (m+6) Serving GW Address [4..16] */
3987 /* IPv4 */
3992 /* IPv6 */
3997 /* Error */
4001 }
4003 /* (m+7) to (m+10)
4004 * Serving GW S1-U TEID
4005 */
4008 }
4009 /*
4010 * 8.27 Delay Value
4011 */
4013 static void
4014 dissect_gtpv2_delay_value(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
4015 {
4019 }
4021 /*
4022 * 8.28 Bearer Context (grouped IE)
4023 */
4025 static void
4026 dissect_gtpv2_bearer_ctx(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree _U_, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
4027 {
4036 dissect_gtpv2_ie_common(new_tvb, pinfo, grouped_tree, 0, message_type, args, GTPV2_IE_BEARER_CTX);
4037 }
4039 /* 8.29 Charging ID */
4040 static void
4041 dissect_gtpv2_charging_id(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
4042 {
4046 }
4049 /* 8.30 Charging Characteristics
4050 * The charging characteristics information element is defined in 3GPP TS 32.251 [8]
4051 * and is a way of informing both the SGW and PGW of the rules for producing charging
4052 * information based on operator configured triggers. For the encoding of this
4053 * information element see 3GPP TS 32.298 [9].
4054 */
4055 static void
4056 dissect_gtpv2_char_char(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
4057 {
4063 /* These octet(s) is/are present only if explicitly specified */
4064 proto_tree_add_item(tree, hf_gtpv2_charging_characteristic_remaining_octets, tvb, offset, length-2, ENC_NA);
4065 }
4067 }
4069 /*
4070 * 8.30 Bearer Flag
4071 */
4072 static void
4073 dissect_gtpv2_bearer_flag(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
4074 {
4078 /* Octet 5 Spare VB PPC */
4082 }
4083 /*
4084 * 8.34 PDN Type
4085 */
4086 void
4087 dissect_gtpv2_pdn_type(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
4088 {
4097 }
4102 proto_item_append_text(item, "%s", val_to_str_ext_const(pdn, >pv2_pdn_type_vals_ext, "Unknown"));
4104 }
4106 /*
4107 * 8.31 Trace Information
4108 */
4109 /* List of NE Types */
4119 NULL
4120 };
4130 NULL
4131 };
4133 static void
4134 dissect_gtpv2_tra_info(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
4135 {
4138 proto_tree *interfaces_tree, *imsc_server_tree, *lmgw_tree, *lsgsn_tree, *lggsn_tree, *lrnc_tree;
4142 #if 0
4144 #endif
4151 /* Append Trace ID to main tree */
4155 /* Trace ID */
4156 /*--------------------------------------------------
4157 * trace_id = tvb_format_text(tvb, offset, 2);
4158 * proto_tree_add_string(tree, hf_gtpv2_tra_info, tvb, offset, length, trace_id);
4159 *--------------------------------------------------*/
4163 /* Triggering Events, put all into a new tree called triggering_tree */
4164 trigg_tree = proto_tree_add_subtree(tree, tvb, offset, 9, ett_gtpv2_tra_info_trigg, NULL, "Triggering Events");
4166 /* Create all subtrees */
4167 msc_server_tree = proto_tree_add_subtree(trigg_tree, tvb, offset, 2, ett_gtpv2_tra_info_trigg_msc_server, NULL, "MSC Server");
4169 mgw_tree = proto_tree_add_subtree(trigg_tree, tvb, offset + 2, 1, ett_gtpv2_tra_info_trigg_mgw, NULL, "MGW");
4171 sgsn_tree = proto_tree_add_subtree(trigg_tree, tvb, offset + 3, 2, ett_gtpv2_tra_info_trigg_sgsn, NULL, "SGSN");
4173 ggsn_tree = proto_tree_add_subtree(trigg_tree, tvb, offset + 5, 1, ett_gtpv2_tra_info_trigg_ggsn, NULL, "GGSN");
4175 bm_sc_tree = proto_tree_add_subtree(trigg_tree, tvb, offset + 6, 1, ett_gtpv2_tra_info_trigg_bm_sc, NULL, "BM-SC");
4177 sgw_mme_tree = proto_tree_add_subtree(trigg_tree, tvb, offset + 7, 1, ett_gtpv2_tra_info_trigg_sgw_mme, NULL, "SGW MME");
4179 sgw_tree = proto_tree_add_subtree(trigg_tree, tvb, offset + 8, 1, ett_gtpv2_tra_info_trigg_sgw, NULL, "SGW");
4181 pgw_tree = proto_tree_add_subtree(trigg_tree, tvb, offset + 8, 1, ett_gtpv2_tra_info_trigg_pgw, NULL, "PGW");
4183 /* MSC Server - 2 octets */
4190 NULL
4191 };
4192 proto_tree_add_bitmask_list(msc_server_tree, tvb, offset, 1, tra_info_msc_flags, ENC_BIG_ENDIAN);
4194 proto_tree_add_bits_item(msc_server_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
4197 proto_tree_add_bits_item(msc_server_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 8, ENC_BIG_ENDIAN);
4200 /* MGW - 1 octet */
4205 /* SGSN - 2 octets */
4211 NULL
4212 };
4217 proto_tree_add_item(sgsn_tree, hf_gtpv2_tra_info_sgsn_reserved, tvb, offset, 1, ENC_BIG_ENDIAN);
4219 /* GGSN - 1 octet */
4225 /* BM-SC - 1 octet */
4230 /* MME/SGW - 1 octet */
4238 NULL
4239 };
4242 proto_tree_add_bits_item(sgw_mme_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
4244 /* PGW/SGW - 1 octet */
4249 NULL
4250 };
4251 proto_tree_add_bitmask_list(sgw_mme_tree, tvb, offset, 1, tra_info_sgw_pdn_flags, ENC_BIG_ENDIAN);
4259 NULL
4260 };
4267 /* Create NE Types subtree */
4268 ne_types_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_gtpv2_tra_info_ne_types, NULL, "List of NE Types");
4275 proto_tree_add_bits_item(ne_types_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
4278 /* Trace Depth Length */
4282 /* Set up subtree interfaces and put all interfaces under it */
4283 interfaces_tree = proto_tree_add_subtree(tree, tvb, offset, 12, ett_gtpv2_tra_info_interfaces, NULL, "List of Interfaces");
4285 /* Create all subtrees */
4286 imsc_server_tree = proto_tree_add_subtree(interfaces_tree, tvb, offset, 2, ett_gtpv2_tra_info_interfaces_imsc_server, NULL, "MSC Server");
4288 lmgw_tree = proto_tree_add_subtree(interfaces_tree, tvb, offset + 2, 1, ett_gtpv2_tra_info_interfaces_lmgw, NULL, "MGW");
4290 lsgsn_tree = proto_tree_add_subtree(interfaces_tree, tvb, offset + 3, 2, ett_gtpv2_tra_info_interfaces_lsgsn, NULL, "SGSN");
4292 lggsn_tree = proto_tree_add_subtree(interfaces_tree, tvb, offset + 5, 1, ett_gtpv2_tra_info_interfaces_lggsn, NULL, "GGSN");
4294 lrnc_tree = proto_tree_add_subtree(interfaces_tree, tvb, offset + 6, 1, ett_gtpv2_tra_info_interfaces_lrnc, NULL, "RNC");
4296 lbm_sc_tree = proto_tree_add_subtree(interfaces_tree, tvb, offset + 7, 1, ett_gtpv2_tra_info_interfaces_lbm_sc, NULL, "BM-SC");
4298 lmme_tree = proto_tree_add_subtree(interfaces_tree, tvb, offset + 8, 1, ett_gtpv2_tra_info_interfaces_lmme, NULL, "MME");
4300 lsgw_tree = proto_tree_add_subtree(interfaces_tree, tvb, offset + 9, 1,ett_gtpv2_tra_info_interfaces_lsgw, NULL, "SGW");
4302 lpdn_gw_tree = proto_tree_add_subtree(interfaces_tree, tvb, offset + 10, 1, ett_gtpv2_tra_info_interfaces_lpdn_gw, NULL, "PDN GW");
4304 lenb_tree = proto_tree_add_subtree(interfaces_tree, tvb, offset + 11, 1, ett_gtpv2_tra_info_interfaces_lpdn_lenb, NULL, "eNB");
4306 /* MSC Server - 2 octets */
4316 NULL
4317 };
4318 proto_tree_add_bitmask_list(imsc_server_tree, tvb, offset, 1, tra_info_lmsc_flags, ENC_BIG_ENDIAN);
4320 proto_tree_add_item(imsc_server_tree, hf_gtpv2_tra_info_lmsc_map_d, tvb, offset, 1, ENC_BIG_ENDIAN);
4321 proto_tree_add_item(imsc_server_tree, hf_gtpv2_tra_info_lmsc_map_c, tvb, offset, 1, ENC_BIG_ENDIAN);
4323 proto_tree_add_bits_item(imsc_server_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 6, ENC_BIG_ENDIAN);
4325 /* MGW - 1 octet */
4330 NULL
4331 };
4336 /* SGSN - 2 octets */
4346 NULL
4347 };
4354 /* GGSN - 1 octet */
4359 NULL
4360 };
4365 /* RNC - 1 octet */
4371 NULL
4372 };
4377 /* BM_SC - 1 octet */
4378 proto_tree_add_item(lbm_sc_tree, hf_gtpv2_tra_info_lbm_sc_gmb, tvb, offset, 1, ENC_BIG_ENDIAN);
4380 proto_tree_add_bits_item(lbm_sc_tree, hf_gtpv2_spare_bits, tvb, bit_offset, 7, ENC_BIG_ENDIAN);
4382 /* MME - 1 octet */
4389 NULL
4390 };
4395 /* SGW - 1 octet */
4401 NULL
4402 };
4407 /* PDN GW - 1 octet */
4417 NULL
4418 };
4419 proto_tree_add_bitmask_list(lpdn_gw_tree, tvb, offset, 1, tra_info_lpdn_gw_flags, ENC_BIG_ENDIAN);
4421 /* eNB - 1 octet */
4426 NULL
4427 };
4432 /*--------------------------------------------------
4433 * offset += 1;
4434 *--------------------------------------------------*/
4436 /* IP Address of Trace Collection Entity */
4441 }
4442 }
4444 /*
4445 * 8.33 Paging Cause
4446 * 8.33 Void (TS 129 274 V9.4.0 (2010-10))
4447 */
4449 /* 8.35 Procedure Transaction ID (PTI) */
4450 static void
4451 dissect_gtpv2_pti(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
4452 {
4454 }
4455 /*
4456 * 8.36 DRX Parameter
4457 */
4458 static void
4459 dissect_gtpv2_drx_param(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
4460 {
4463 /* 36.413 : 9.2.1.17 Paging Cause, void */
4465 }
4467 /*
4468 * 8.37 UE Network Capability
4469 * UE Network Capability is coded as depicted in Figure 8.37-1. Actual coding of the UE Network Capability field is
4470 * defined in 3GPP TS 24.301
4471 */
4472 static void
4473 dissect_gtpv2_ue_net_capability(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
4474 {
4477 }
4478 /*
4479 * 8.38 MM Context
4480 */
4489 };
4494 };
4496 /* Table 8.38-2: Used NAS Cipher Values */
4508 };
4510 /* Table 8.38-3: Used Cipher Values */
4521 };
4523 /* Table 8.38-4: Used NAS integrity protection algorithm Values */
4534 };
4536 /* Table 8.38-6: EPS NAS Security Context Type Values */
4542 };
4544 /* Helper functions */
4546 /* Figure 8.38-7: Authentication Triplet */
4547 static int
4548 dissect_gtpv2_authentication_triplets(tvbuff_t *tvb, proto_tree *tree, int offset, uint8_t num_triplet)
4549 {
4556 /*
4557 * Figure 8.38-8: Authentication Quintuplet
4558 * 1 to 16 RAND
4559 * 17 to 20 SRES
4560 * 21 to 28 Kc
4561 */
4569 }
4572 }
4574 static int
4575 dissect_gtpv2_authentication_quintuplets(tvbuff_t *tvb, proto_tree *tree, int offset, uint8_t nr_qui)
4576 {
4584 /*
4585 * Figure 8.38-8: Authentication Quintuplet
4586 * 1 to 16 RAND
4587 * 17 XRES Length
4588 * 18 to m XRES
4589 * (m+1) to (m+16) CK
4590 * (m+17) to (m+32) IK
4591 * m+33 AUTN Length
4592 * (m+34) to n AUTN
4593 */
4596 proto_tree_add_item_ret_uint(auth_qui_tree, hf_gtpv2_mm_context_xres_len, tvb, offset, 1, ENC_NA, &tmp);
4604 proto_tree_add_item_ret_uint(auth_qui_tree, hf_gtpv2_mm_context_autn_len, tvb, offset, 1, ENC_NA, &tmp);
4608 }
4612 }
4614 static int
4615 dissect_gtpv2_authentication_quadruplets(tvbuff_t *tvb, proto_tree *tree, int offset, uint8_t nr_qui)
4616 {
4628 proto_tree_add_item_ret_uint(auth_qua_tree, hf_gtpv2_mm_context_xres_len, tvb, offset, 1, ENC_NA, &tmp);
4629 offset++;
4634 proto_tree_add_item_ret_uint(auth_qua_tree, hf_gtpv2_mm_context_autn_len, tvb, offset, 1, ENC_NA, &tmp);
4635 offset++;
4643 }
4645 }
4651 };
4653 static int
4654 dissect_gtpv2_mm_context_common_data(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, uint8_t samb_ri, uint8_t uamb_ri)
4655 {
4659 /*
4660 * If SAMBRI (Subscribed UE AMBR Indicator), bit 1 of octet 6, is set to "1",
4661 * then the Uplink/downlink Subscribed UE AMBR parameter field is present,
4662 */
4664 /* j to (j+3) Uplink Subscribed UE AMBR */
4668 /* (j+4) to (j+7) Downlink Subscribed UE AMBR */
4669 proto_tree_add_item(tree, hf_gtpv2_downlink_subscribed_ue_ambr, tvb, offset, 4, ENC_BIG_ENDIAN);
4672 }
4673 /*
4674 * If UAMBRI (Used UE AMBR Indicator), bit 2 of octet 6, is set to "1",
4675 * then the Uplink/downlink Used UE AMBR parameter field is present
4676 */
4678 /* i to (i+3) Uplink Used UE AMBR */
4682 /* (i+4) to (i+7) Downlink Used UE AMBR */
4686 }
4687 /* q Length of UE Network Capability */
4691 /* (q+1) to k UE Network Capability */
4693 /* The UE Network Capability coding is specified in clause 9.9.3.34 of 3GPP TS 24.301 [23].
4694 * If Length of UE Network Capability is zero, then the UE Network Capability parameter
4695 * shall not be present.
4696 */
4700 }
4701 /* k+1 Length of MS Network Capability */
4705 /* (k+2) to m MS Network Capability
4706 * The MS Network Capability coding is specified in clause 10.5.5.12 of 3GPP TS 24.008 [5].
4707 * If Length of MS Network Capability is zero, then the MS Network Capability parameter shall not be present.
4708 */
4713 }
4714 /* m+1 Length of Mobile Equipment Identity (MEI) */
4718 /* (m+2) to r Mobile Equipment Identity (MEI) */
4720 proto_tree_add_item(tree, hf_gtpv2_mei, tvb, offset, mei_len, ENC_BCD_DIGITS_0_9|ENC_LITTLE_ENDIAN);
4722 }
4724 }
4726 static int
4728 {
4731 accrstdata_tree = proto_tree_add_subtree(tree, tvb, offset, 1, ett_gtpv2_access_rest_data, NULL, "Access restriction data");
4732 /* Spare HNNA ENA INA GANA GENA UNA */
4733 proto_tree_add_bits_item(accrstdata_tree, hf_gtpv2_spare_bits, tvb, (offset << 3), 1, ENC_BIG_ENDIAN);
4744 }
4746 /* Type = 103 (decimal)
4747 * Figure 8.38-1: GSM Key and Triplets
4748 */
4749 static void
4750 dissect_gtpv2_mm_context_gsm_t(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
4751 {
4757 flag_tree = proto_tree_add_subtree(tree, tvb, offset, 3, ett_gtpv2_mm_context_flag, NULL, "MM Context flags");
4759 /* Octet 5 */
4760 /* Security Mode | Spare | DRXI | CKSN */
4767 /* Octet 6 */
4768 /* Number of Triplet | Spare | UAMB RI | SAMB RI */
4775 proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, (offset << 3) + 3, 3, ENC_BIG_ENDIAN);
4777 proto_tree_add_bits_item(flag_tree, hf_gtpv2_mm_context_samb_ri, tvb, (offset << 3) + 7, 1, ENC_BIG_ENDIAN);
4780 /* Octet 7 Spare Used Cipher */
4781 proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, ((offset << 3)), 5, ENC_BIG_ENDIAN);
4782 proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_used_cipher, tvb, offset, 1, ENC_BIG_ENDIAN);
4785 /* 8 to 15 Kc */
4789 /* 16 to h Authentication Triplet [0..4] */
4792 }
4794 /*
4795 * (h+1) to (h+2) DRX parameter
4796 */
4800 }
4802 /* Dissect octet j to r */
4805 proto_tree_add_expert_format(flag_tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, -1, "The rest of the IE not dissected yet");
4806 }
4808 /* Type = 104 (decimal)
4809 * Figure 8.38-2: UMTS Key, Used Cipher and Quintuplets
4810 */
4811 static void
4812 dissect_gtpv2_mm_context_utms_cq(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
4813 {
4819 flag_tree = proto_tree_add_subtree(tree, tvb, offset, 3, ett_gtpv2_mm_context_flag, NULL, "MM Context flags");
4821 /* Octet 5 */
4824 proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, ((offset << 3) + 3), 1, ENC_BIG_ENDIAN);
4828 /* Octet 6 */
4834 proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, (offset << 3) + 3, 3, ENC_BIG_ENDIAN);
4836 proto_tree_add_bits_item(flag_tree, hf_gtpv2_mm_context_samb_ri, tvb, (offset << 3) + 7, 1, ENC_BIG_ENDIAN);
4838 /* Octet 7 Spare Used Cipher */
4839 proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, ((offset << 3)), 5, ENC_BIG_ENDIAN);
4840 proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_used_cipher, tvb, offset, 1, ENC_BIG_ENDIAN);
4843 /* Octet 8 to 23 CK */
4846 /* Octet 24 to 39 IK */
4850 /*
4851 * 40 to h Authentication Quintuplet [0..4]
4852 */
4855 }
4857 /*
4858 * (h+1) to (h+2) DRX parameter
4859 */
4863 }
4866 /* Dissect octet j to r */
4869 /* r+1 Spare HNNA ENA INA GANA GENA UNA
4870 * The Access restriction data is composed of UNA(UTRAN Not Allowed), GENA(GERAN Not Allowed),
4871 * GANA(GAN Not Allowed), INA(I-HSPA-Evolution Not Allowed), ENA(E-UTRAN Not Allowed) and
4872 * HNNA(HO-To-Non-3GPPAccess Not Allowed).
4873 */
4878 }
4881 }
4883 /* r+2 Length of Voice Domain Preference and UE's Usage Setting */
4887 /* (r+3) to s Voice Domain Preference and UE's Usage Setting */
4889 proto_tree_add_item(tree, hf_gtpv2_voice_domain_and_ue_usage_setting, tvb, offset, vdp_len, ENC_NA);
4891 }
4893 /* s+1 Length of Higher bitrates than 16 Mbps flag */
4896 proto_tree_add_item(tree, hf_gtpv2_mm_context_higher_br_16mb_flg_len, tvb, offset, 1, ENC_BIG_ENDIAN);
4898 /* s+2 Higher bitrates than 16 Mbps flag */
4900 proto_tree_add_item(tree, hf_gtpv2_mm_context_higher_br_16mb_flg, tvb, offset, 1, ENC_BIG_ENDIAN);
4902 }
4905 }
4907 proto_tree_add_expert_format(flag_tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, -1, "The rest of the IE not dissected yet");
4909 }
4911 /* Type = 105 (decimal)
4912 * Figure 8.38-3: GSM Key, Used Cipher and Quintuplets
4913 */
4914 static void
4915 dissect_gtpv2_mm_context_gsm_cq(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
4916 {
4922 flag_tree = proto_tree_add_subtree(tree, tvb, offset, 3, ett_gtpv2_mm_context_flag, NULL, "MM Context flags");
4924 /* Octet 5 */
4927 proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, ((offset << 3) + 3), 1, ENC_BIG_ENDIAN);
4931 /* Octet 6 */
4937 proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, (offset << 3) + 3, 3, ENC_BIG_ENDIAN);
4939 proto_tree_add_bits_item(flag_tree, hf_gtpv2_mm_context_samb_ri, tvb, (offset << 3) + 7, 1, ENC_BIG_ENDIAN);
4941 /* Octet 7 Spare Used Cipher */
4942 proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, ((offset << 3)), 5, ENC_BIG_ENDIAN);
4943 proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_used_cipher, tvb, offset, 1, ENC_BIG_ENDIAN);
4945 /* 8 to 15 Kc */
4949 /*
4950 * 40 to h Authentication Quintuplet [0..4]
4951 */
4954 }
4956 /*
4957 * (h+1) to (h+2) DRX parameter
4958 */
4962 }
4965 /* Dissect octet j to r */
4968 /* r+1 Spare HNNA ENA INA GANA GENA UNA
4969 * The Access restriction data is composed of UNA(UTRAN Not Allowed), GENA(GERAN Not Allowed),
4970 * GANA(GAN Not Allowed), INA(I-HSPA-Evolution Not Allowed), ENA(E-UTRAN Not Allowed) and
4971 * HNNA(HO-To-Non-3GPPAccess Not Allowed).
4972 */
4977 }
4980 }
4982 /* r+2 Length of Voice Domain Preference and UE's Usage Setting */
4986 /* (r+3) to s Voice Domain Preference and UE's Usage Setting */
4988 proto_tree_add_item(tree, hf_gtpv2_voice_domain_and_ue_usage_setting, tvb, offset, vdp_len, ENC_NA);
4990 }
4992 /* s+1 Length of Higher bitrates than 16 Mbps flag */
4995 proto_tree_add_item(tree, hf_gtpv2_mm_context_higher_br_16mb_flg_len, tvb, offset, 1, ENC_BIG_ENDIAN);
4997 /* s+2 Higher bitrates than 16 Mbps flag */
4999 proto_tree_add_item(tree, hf_gtpv2_mm_context_higher_br_16mb_flg, tvb, offset, 1, ENC_BIG_ENDIAN);
5001 }
5004 }
5006 proto_tree_add_expert_format(flag_tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, -1, "The rest of the IE not dissected yet");
5008 }
5010 /* Type = 106 (decimal)
5011 * Figure 8.38-4: UMTS Key and Quintuplets
5012 */
5013 static void
5014 dissect_gtpv2_mm_context_utms_q(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
5015 {
5021 flag_tree = proto_tree_add_subtree(tree, tvb, offset, 3, ett_gtpv2_mm_context_flag, NULL, "MM Context flags");
5023 /* Octet 5 */
5024 /* Security Mode Spare DRXI KSI */
5026 proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, ((offset << 3) + 3), 1, ENC_BIG_ENDIAN);
5031 /* Octet 6 */
5032 /* Number of Quintuplets Spare UAMB RI SAMB RI */
5039 proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, (offset << 3) + 3, 3, ENC_BIG_ENDIAN);
5041 proto_tree_add_bits_item(flag_tree, hf_gtpv2_mm_context_samb_ri, tvb, (offset << 3) + 7, 1, ENC_BIG_ENDIAN);
5043 /* Octet 7 Spare */
5046 /* Octet 8 to 23 CK */
5049 /* Octet 24 to 39 IK */
5053 /*
5054 * 40 to h Authentication Quintuplet [0..4]
5055 */
5058 }
5060 /*
5061 * (h+1) to (h+2) DRX parameter
5062 */
5066 }
5069 /* Dissect octet j to r */
5072 /* r+1 Spare HNNA ENA INA GANA GENA UNA
5073 * The Access restriction data is composed of UNA(UTRAN Not Allowed), GENA(GERAN Not Allowed),
5074 * GANA(GAN Not Allowed), INA(I-HSPA-Evolution Not Allowed), ENA(E-UTRAN Not Allowed) and
5075 * HNNA(HO-To-Non-3GPPAccess Not Allowed).
5076 */
5081 }
5084 }
5086 /* r+2 Length of Voice Domain Preference and UE's Usage Setting */
5090 /* (r+3) to s Voice Domain Preference and UE's Usage Setting */
5092 proto_tree_add_item(tree, hf_gtpv2_voice_domain_and_ue_usage_setting, tvb, offset, vdp_len, ENC_NA);
5094 }
5096 /* s+1 Length of Higher bitrates than 16 Mbps flag */
5099 proto_tree_add_item(tree, hf_gtpv2_mm_context_higher_br_16mb_flg_len, tvb, offset, 1, ENC_BIG_ENDIAN);
5101 /* s+2 Higher bitrates than 16 Mbps flag */
5103 proto_tree_add_item(tree, hf_gtpv2_mm_context_higher_br_16mb_flg, tvb, offset, 1, ENC_BIG_ENDIAN);
5105 }
5108 }
5110 /* s+3 IOV_updates counter */
5112 proto_tree_add_item(tree, hf_gtpv2_mm_context_iov_updates_counter, tvb, offset, 1, ENC_BIG_ENDIAN);
5116 }
5117 /* s+4 Length of Extended Access Restriction Data */
5124 NULL
5125 };
5129 proto_tree_add_expert_format(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, -1, "The rest of the IE not dissected yet");
5131 }
5134 }
5138 }
5139 /* ts+1) to (n+4) These octet(s) is/are present only if explicitly specified */
5140 proto_tree_add_expert_format(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, -1, "The rest of the IE not dissected yet");
5142 }
5144 /* 8.38 MM Context
5145 * Type = 107 (decimal)
5146 * Figure 8.38-5: EPS Security Context and Quadruplets
5147 */
5148 static void
5149 dissect_gtpv2_mm_context_eps_qq(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
5150 {
5155 uint32_t dword, paging_len, ue_add_sec_cap_len, ex_access_res_data_len, ue_nr_sec_cap_len, apn_rte_ctrl_sts_len, ie_len;
5159 flag_tree = proto_tree_add_subtree(tree, tvb, offset, 3, ett_gtpv2_mm_context_flag, NULL, "MM Context flags");
5161 /* Octet 5
5162 * Bits
5163 * 8 7 6 5 4 3 2 1
5164 * Security Mode | NHI | DRXI | KSIASME
5165 */
5168 /* If NHI (Next Hop Indicator), bit 5 of octet 5, is set to "1",
5169 * then the optional parameters NH (Next Hop) and NCC (Next
5170 * Hop Chaining Count) are both present, otherwise their octets are not present.
5171 */
5179 /* Octet 6
5180 * Bits
5181 * 8 7 6 5 4 3 2 1
5182 * Number of | Number of | UAMB | OSCI
5183 * Quintuplets | Quadruplet | RI |
5184 */
5194 /* UAMB RI */
5196 /* OSCI */
5200 /* Octet 7 SAMB RI Used NAS integrity protection algorithm Used NAS Cipher*/
5201 /* SAMB RI */
5203 proto_tree_add_bits_item(flag_tree, hf_gtpv2_mm_context_samb_ri, tvb, offset << 3, 1, ENC_BIG_ENDIAN);
5204 /* Used NAS integrity protection algorithm */
5206 /* Used NAS Cipher */
5210 /* Octet 8-10 NAS Downlink Count*/
5214 /* Octet 11-13 NAS Uplink Count */
5218 /* Octet 14-45 */
5222 qua_item = proto_tree_add_uint(tree, hf_gtpv2_authentication_quadruplets, tvb, offset, 0, nr_qua);
5228 }
5230 qui_item = proto_tree_add_uint(tree, hf_gtpv2_authentication_quintuplets, tvb, offset, 0, nr_qui);
5236 }
5238 /* (h+1) to (h+2) DRX parameter */
5242 }
5244 /* Octet p to p+31 & Octet p+32 */
5246 {
5252 }
5255 /* Dissect octet j to r */
5258 /* r+1 Spare HBNA HNNA ENA INA GANA GENA UNA */
5263 }
5267 }
5269 /* the fields for the Old EPS Security Context (i.e. octets from s to s+64)
5270 * may be present only in S10 Forward Relocation Request message according to
5271 * the Rules on Concurrent Running of Security Procedures, which are specified in 3GPP TS 33.401 [12].
5272 * The octets for Old EPS Security Context shall be present if the OSCI (Old Security Context Indicator),
5273 * bit 1 of octet 6) is set to "1"; otherwise they shall not be present.
5274 */
5276 /* s */
5277 /* If NHI_old (Next Hop Indicator for old EPS Security Context), bit 1 of octet s, is set to "1",
5278 * then the parameters old NH (Next Hop) and old NCC (Next Hop Chaining Count) shall be present;
5279 * otherwise the octets for old NH parameter shall not be present and the value of old NCC parameter
5280 * shall be ignored by the receiver
5281 */
5282 /* NHI_old Spare old KSIASME old NCC*/
5283 proto_tree_add_item_ret_uint(tree, hf_gtpv2_mm_contex_nhi_old, tvb, offset, 1, ENC_BIG_ENDIAN, &dword);
5286 offset++;
5287 /* (s+1) to (s+32) old KASME */
5290 /* (s+33) to (s+64) old NH */
5294 }
5295 }
5299 }
5301 /* w Length of Voice Domain Preference and UE's Usage Setting */
5305 /* (r+3) to s Voice Domain Preference and UE's Usage Setting */
5307 proto_tree_add_item(tree, hf_gtpv2_voice_domain_and_ue_usage_setting, tvb, offset, vdp_len, ENC_NA);
5309 }
5313 }
5315 /* (t+1) to (t+2) Length of UE Radio Capability for Paging information*/
5316 proto_tree_add_item_ret_uint(tree, hf_gtpv2_mm_context_paging_len, tvb, offset, 2, ENC_BIG_ENDIAN, &paging_len);
5320 proto_tree_add_item(tree, hf_gtpv2_ue_radio_capability_for_paging_information, tvb, offset, paging_len, ENC_NA);
5322 }
5326 }
5328 /*(u+1) Length of Extended Access Restriction Data */
5329 proto_tree_add_item_ret_uint(tree, hf_gtpv2_mm_context_ex_access_res_data_len, tvb, offset, 1, ENC_BIG_ENDIAN, &ex_access_res_data_len);
5332 /*(u+2) to v
5333 *8 7 6 5 4 3 2 1
5334 * spare | USSRNA | NRSRNA
5335 */
5344 NULL
5345 };
5350 proto_tree_add_expert_format(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, ex_access_res_data_len - 1, "The rest of the IE not dissected yet");
5352 }
5353 }
5357 }
5359 /*
5360 * The UE additional security capability coding is specified in clause 9.9.3.53 of 3GPP TS 24.301 [23].
5361 * If Length of UE additional security capability is zero, then the field UE additional security capability in octets "(v+2) to x" shall not be present.
5362 */
5363 /*(v+1) Length of UE additional security capability*/
5364 proto_tree_add_item_ret_uint(tree, hf_gtpv2_mm_context_ue_add_sec_cap_len, tvb, offset, 1, ENC_BIG_ENDIAN, &ue_add_sec_cap_len);
5367 /*(v+2) to x UE additional security capability*/
5369 sc_tree = proto_tree_add_subtree(tree, tvb, offset, ue_add_sec_cap_len, ett_gtpv2_mm_context_sc, NULL, "UE additional Security Capability");
5371 }
5375 }
5377 /* x+1 Length of UE NR security capability */
5378 proto_tree_add_item_ret_uint(tree, hf_gtpv2_mm_context_ue_nr_sec_cap_len, tvb, offset, 1, ENC_BIG_ENDIAN, &ue_nr_sec_cap_len);
5380 /* The UE NR security capability coding is specified in clause 9.8.3.57 of 3GPP TS 24.501.
5381 * If Length of UE NR security capability is zero, then the field UE NR security capability in octets
5382 "(x+2) to y" shall not be present.
5383 */
5385 /* (x+2) to y UE NR security capability */
5386 /* The UE NR security capability coding is specified in clause 9.8.3.57 of 3GPP TS 24.501 */
5387 sc_tree = proto_tree_add_subtree(tree, tvb, offset, ue_nr_sec_cap_len, ett_gtpv2_ue_nr_sec_cap_len, NULL, "UE NR security capability");
5388 proto_tree_add_expert_format(sc_tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, ue_nr_sec_cap_len, "The rest of the IE not dissected yet");
5390 }
5394 }
5396 /* (y+1) to (y+2) Length of APN Rate Control Statuses */
5397 proto_tree_add_item_ret_uint(tree, hf_gtpv2_mm_context_apn_rte_ctrl_sts_len, tvb, offset, 2, ENC_BIG_ENDIAN, &apn_rte_ctrl_sts_len);
5400 /* (y+3) to l APN Rate Control Status [1..z] */
5401 sc_tree = proto_tree_add_subtree(tree, tvb, offset, apn_rte_ctrl_sts_len, ett_gtpv2_apn_rte_ctrl_sts_len, NULL, "APN Rate Control Status");
5402 proto_tree_add_expert_format(sc_tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, apn_rte_ctrl_sts_len, "The rest of the IE not dissected yet");
5404 }
5407 }
5409 /* (l+1) Length of Core Network Restrictions */
5410 proto_tree_add_item_ret_uint(tree, hf_gtpv2_mm_context_cnr_len, tvb, offset, 1, ENC_BIG_ENDIAN, &ie_len);
5413 /* (l+2) to (l+5) Core Network Restrictions */
5414 /* The Core Network Restrictions coding is specified in clause 7.2.230 of 3GPP TS 29.272 [70].
5415 If Length of Core Network Restrictions is zero, then the field of Core Network Restrictions
5416 in octets "(l+2) to (l+5)" shall not be present.
5417 */
5421 }
5425 }
5427 /* (l+6) Length of UE Radio Capability ID */
5428 proto_tree_add_item_ret_uint(tree, hf_gtpv2_mm_context_ue_radio_cap_len, tvb, offset, 1, ENC_BIG_ENDIAN, &ie_len);
5431 /* (l+7) to z UE Radio Capability ID
5432 * The UE Radio Capability ID is specified in the clause 9.9.3.60 of 3GPP TS24.301
5433 */
5436 }
5440 }
5442 /*(a) ENSCT */
5447 proto_tree_add_expert_format(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, length - offset, "The rest of the IE not dissected yet");
5448 }
5449 }
5451 /*
5452 * Type = 108 (decimal)
5453 * Figure 8.38-6: UMTS Key, Quadruplets and Quintuplets
5454 */
5455 static void
5456 dissect_gtpv2_mm_context_utms_qq(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
5457 {
5463 flag_tree = proto_tree_add_subtree(tree, tvb, offset, 3, ett_gtpv2_mm_context_flag, NULL, "MM Context flags");
5465 /* Octet 5
5466 * Security Mode Spare DRXI KSIASME
5467 */
5469 proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, ((offset << 3) + 3), 1, ENC_BIG_ENDIAN);
5475 /* Octet 6
5476 * Bits
5477 * 8 7 6 5 4 3 2 1
5478 * Number of | Number of | UAMB | SAMB
5479 * Quintuplets | Quadruplet | RI | RI
5480 */
5491 proto_tree_add_bits_item(flag_tree, hf_gtpv2_mm_context_samb_ri, tvb, (offset << 3) + 7, 1, ENC_BIG_ENDIAN);
5493 /* Octet 7 Spare */
5496 /* Octet 8 to 23 CK */
5499 /* Octet 24 to 39 IK */
5505 }
5509 }
5511 /* (h+1) to (h+2) DRX parameter */
5515 }
5517 /* Dissect octet j to r */
5522 }
5523 /* r+1 Spare HBNA HNNA ENA INA GANA GENA UNA */
5528 }
5530 /* The Voice Domain Preference and UE's Usage Setting coding is specified in clause 10.5.5.28 of 3GPP TS 24.008 [5]. If
5531 * Length of Voice Domain Preference and UE's Usage Setting is zero, then the Voice Domain Preference and UE's Usage
5532 * Setting parameter shall not be present.
5533 */
5534 /* r+2 */
5537 offset++;
5541 }
5544 proto_tree_add_expert_format(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, -1, "The rest of the IE not dissected yet");
5545 }
5547 }
5549 /*
5550 * 8.39 PDN Connection (grouped IE)
5551 */
5552 static void
5553 dissect_gtpv2_PDN_conn(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree _U_, proto_item *item, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
5554 {
5563 dissect_gtpv2_ie_common(new_tvb, pinfo, grouped_tree, offset, message_type, args, GTPV2_IE_PDN_CONNECTION);
5564 }
5565 /*
5566 * 8.40 PDU Numbers
5567 */
5568 static void
5569 dissect_gtpv2_pdn_numbers(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
5570 {
5579 proto_tree_add_bits_item(nsapi_tree, hf_gtpv2_spare_bits, tvb, offset << 3, 4, ENC_BIG_ENDIAN);
5594 }
5596 /*
5597 * 8.41 Packet TMSI (P-TMSI)
5598 */
5599 static void
5600 dissect_gtpv2_p_tmsi(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
5601 {
5605 /* The TMSI consists of 4 octets. It can be coded using a full hexadecimal representation. */
5610 }
5612 /*
5613 * 8.42 P-TMSI Signature
5614 */
5615 static void
5616 dissect_gtpv2_p_tmsi_sig(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
5617 {
5620 /* The P-TMSI Signature consists of 3 octets and may be allocated by the SGSN. */
5624 }
5626 /*
5627 * 8.43 Hop Counter
5628 */
5629 static void
5630 dissect_gtpv2_hop_counter(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
5631 {
5639 }
5641 /*
5642 * 8.44 UE Time Zone
5643 */
5651 };
5652 static void
5653 dissect_gtpv2_ue_time_zone(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
5654 {
5657 /*
5658 * UE Time Zone is used to indicate the offset between universal time and local time in steps of 15 minutes of where the
5659 * UE currently resides. The "Time Zone" field uses the same format as the "Time Zone" IE in 3GPP TS 24.008 [5].
5660 * (packet-gsm_a_dtap.c)
5661 */
5665 }
5667 /*
5668 * 8.45 Trace Reference
5669 */
5670 static void
5671 dissect_gtpv2_trace_reference(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
5672 {
5684 }
5685 /*
5686 * 8.46 Complete Request Message
5687 */
5692 };
5693 static void
5694 dissect_complete_request_msg(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
5695 {
5705 /* Add the Complete Request Message */
5709 }
5711 /*
5712 * 8.47 GUTI
5713 */
5714 static void
5715 dissect_gtpv2_guti(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
5716 {
5731 }
5733 /*
5734 * 8.48 Fully Qualified Container (F-Container)
5735 */
5745 };
5748 static void
5749 dissect_gtpv2_F_container(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, uint16_t length, uint8_t message_type, uint8_t instance _U_, session_args_t * args _U_)
5750 {
5757 /* Octets 8 7 6 5 4 3 2 1
5758 * 5 Spare | Container Type
5759 */
5760 proto_tree_add_item_ret_uint(tree, hf_gtpv2_container_type, tvb, offset, 1, ENC_BIG_ENDIAN, &container_type);
5762 length--;
5766 }
5772 /* UTRAN transparent container (1)
5773 * Contains the "Source to Target
5774 * Transparent Container", if the message is used for PS
5775 * handover to UTRAN Iu mode procedures, SRNS relocation
5776 * procedure and E-UTRAN to UTRAN inter RAT handover
5777 * procedure.
5778 */
5779 sub_tree = proto_tree_add_subtree(tree, tvb, offset, length, ett_gtpv2_utran_con, NULL, "UTRAN transparent container");
5784 /* BSS container */
5785 sub_tree = proto_tree_add_subtree(tree, tvb, offset, length, ett_gtpv2_bss_con, NULL, "BSS container");
5786 /* The flags PFI, RP, SAPI and PHX in octet 6 indicate the corresponding type of parameter */
5794 /* Packet Flow ID present */
5797 }
5800 /* SAPI present */
5802 }
5804 /* Radio Priority present */
5806 }
5808 }
5810 /* XiD parameters length is present in Octet c.
5811 * XiD parameters are present in Octet d to n.
5812 */
5817 }
5820 /* E-UTRAN transparent container
5821 * This IE shall be included to contain the "Source to Target
5822 * Transparent Container", if the message is used for
5823 * UTRAN/GERAN to E-UTRAN inter RAT handover
5824 * procedure, E-UTRAN intra RAT handover procedure and
5825 * 3G SGSN to MME combined hard handover and SRNS
5826 * relocation procedure. The Container Type shall be set to 3.
5827 */
5828 sub_tree = proto_tree_add_subtree(tree, tvb, offset, length, ett_gtpv2_eutran_con, NULL, "E-UTRAN transparent container");
5834 }
5835 }
5839 /* E-UTRAN transparent container */
5845 }
5846 }
5849 /* 7.3.2 Forward Relocation Response */
5852 /* E-UTRAN transparent container
5853 * This IE shall be included to contain the "Target to Source Transparent Container"
5854 * during a handover to E-UTRAN, 5GS to EPS handover and EPS to 5GS handover.
5855 * If the Cause IE contains the value "Request accepted". The Container Type shall be set to 3.
5856 */
5857 sub_tree = proto_tree_add_subtree(tree, tvb, offset, length, ett_gtpv2_eutran_con, NULL, "E-UTRAN transparent container");
5863 }
5864 }
5866 /* 7.3.18 Configuration Transfer Tunnel */
5869 /* SON Configuration Transfer
5870 * This IE shall be included to contain the "SON Configuration Transfer" as specified in 3GPP TS 36.413 [10].
5871 * The Container Type shall be set to 3.
5872 */
5873 sub_tree = proto_tree_add_subtree(tree, tvb, offset, length, ett_gtpv2_son_con, NULL, "SON Configuration Transfer");
5878 /* EN-DC SON Configuration Transfer
5879 * This IE shall be included to contain the "EN-DC SON Configuration Transfer" as specified in 3GPP TS 36.413 [10].
5880 * The Container Type shall be set to 5.
5881 */
5882 sub_tree = proto_tree_add_subtree(tree, tvb, offset, length, ett_gtpv2_endc_son_con, NULL, "EN-DC SON Configuration Transfer");
5887 /* Inter-System SON Container
5888 * This IE shall be included to contain the "Inter-System SON Container" as specified in 3GPP TS 36.413 [10].
5889 * The Container Type shall be set to 6.
5890 */
5891 sub_tree = proto_tree_add_subtree(tree, tvb, offset, length, ett_gtpv2_intersys_son_con, NULL, "Inter-System SON Container");
5897 }
5898 }
5901 }
5903 /*
5904 * 8.49 Fully Qualified Cause (F-Cause)
5905 */
5925 };
5926 static value_string_ext gtpv2_cause_type_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_cause_type_vals);
5928 static void
5929 dissect_gtpv2_s1ap_cause(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, uint8_t cause_type)
5930 {
5934 /* CauseRadioNetwork */
5938 /* CauseTransport */
5942 /* CauseNas */
5946 /* CauseProtocol */
5950 /* CauseMisc */
5955 }
5959 }
5960 static void
5961 dissect_gtpv2_F_cause(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, uint16_t length, uint8_t message_type, uint8_t instance, session_args_t * args _U_)
5962 {
5966 /* The value of Instance field of the F-Cause IE in a GTPv2 message shall indicate
5967 * whether the F-Cause field contains RANAP Cause, BSSGP Cause or RAN Cause.
5968 * If the F-Cause field contains RAN Cause, the Cause Type field shall contain
5969 * the RAN cause subcategory as specified in 3GPP TS 36.413 [10] and it shall be
5970 * encoded as in Table 8.49-1.
5971 * If the F-Cause field contains BSSGP Cause or RANAP Cause,
5972 * the Cause Type field shall be ignored by the receiver.
5973 */
5991 }
5992 }
5994 /* Table 7.3.2-1: Information Elements in a Forward Relocation Response */
5997 /* Instance 0 S1-AP Cause */
6001 offset++;
6005 /* Instance 1 RANAP Cause */
6009 /* Instance 2 BSSGP Cause */
6014 }
6018 proto_tree_add_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, length-offset);
6020 }
6022 /*
6023 * 8.50 PLMN ID
6024 */
6025 /*
6026 * The Selected PLMN ID IE contains the core network operator selected for tne UE
6027 * in a shared network. Octets 5-7 shall be encoded as the content part of the
6028 * "Selected PLMN Identity" parameter in 3GPP TS 36.413 [10].
6029 * -The Selected PLMN identity consists of 3 digits from MCC followed by
6030 * either -a filler digit plus 2 digits from MNC (in case of 2 digit MNC) or
6031 * -3 digits from MNC (in case of a 3 digit MNC).
6032 *
6033 * 8 7 6 5 4 3 2 1
6034 * +--+--+--+--+--+--+--+--+
6035 * Octet 5 |MCC digit 2|MCC digit 1|
6036 * +--+--+--+--+--+--+--+--+
6037 * Octet 6 |MNC digit 1|MCC digit 3|
6038 * +--+--+--+--+--+--+--+--+
6039 * Octet 7 |MNC digit 3|MNC digit 2|
6040 * +--+--+--+--+--+--+--+--+
6041 */
6042 static void
6043 dissect_gtpv2_plmn_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6044 {
6049 }
6051 /*
6052 * 8.51 Target Identification
6053 */
6066 };
6067 static value_string_ext gtpv2_target_type_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_target_type_vals);
6071 {
6076 mcc_mnc_str = dissect_e212_mcc_mnc_wmem_packet_str(tvb, pinfo, tree, *offset, E212_NONE, true);
6079 /* Octet 10 to 12 Home eNodeB ID
6080 * The Home eNodeB ID consists of 28 bits. See 3GPP TS 36.413 [10].
6081 * Bit 4 of Octet 9 is the most significant bit and bit 1 of Octet 12 is the least significant bit.
6082 * The coding of the Home eNodeB ID is the responsibility of each administration.
6083 * Coding using full hexadecimal representation shall be used.
6084 */
6090 mcc_mnc_str,
6091 home_enodeb_id);
6094 }
6098 {
6103 mcc_mnc_str = dissect_e212_mcc_mnc_wmem_packet_str(tvb, pinfo, tree, *offset, E212_NONE, true);
6106 /* The gNodeB ID Length field, in bits 1 to 6 of octet 9,
6107 * indicates the length of the gNodeB ID in number of bits
6108 */
6113 proto_tree_add_item_ret_uint(tree, hf_gtpv2_gnodeb_id, tvb, *offset, 4, ENC_BIG_ENDIAN, &gnodeb_id);
6117 mcc_mnc_str,
6118 gnodeb_id);
6121 }
6124 dissect_gtpv2_macro_ng_enodeb_id(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, int* offset)
6125 {
6130 mcc_mnc_str = dissect_e212_mcc_mnc_wmem_packet_str(tvb, pinfo, tree, *offset, E212_NONE, true);
6133 proto_tree_add_item_ret_uint(tree, hf_gtpv2_macro_ng_enodeb_id, tvb, *offset, 3, ENC_BIG_ENDIAN, &ng_enodeb_id);
6137 mcc_mnc_str,
6138 ng_enodeb_id);
6141 }
6143 static void
6144 dissect_gtpv2_target_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6145 {
6155 /* 8.51.2 RNC ID*/
6159 /* LAC */
6163 /* RAC (see NOTE 3) */
6165 offset++;
6166 /* RNC ID
6167 * In this case the Target ID field shall be encoded as the Target
6168 * RNC-ID part of the "Target ID" parameter in 3GPP TS 25.413 [33]. Therefore, the "Choice Target ID" that indicates
6169 * "Target RNC-ID" (numerical value of 0x20) shall not be included (value in octet 5 specifies the target type).
6170 */
6172 /* If the optional Extended RNC-ID is not included, then the length variable 'n' = 8 and the overall length of the IE is 11
6173 * octets. Otherwise, 'n' = 10 and the overall length of the IE is 13 octets
6174 */
6177 }
6180 /* Macro eNodeB ID*/
6183 /* Tracking Area Code (TAC) */
6189 /* Cell Identifier */
6190 /* Target ID field shall be same as the Octets 3 to 10 of the Cell Identifier IEI
6191 * in 3GPP TS 48.018 [34].
6192 */
6197 /* Home eNodeB ID */
6200 /* Octet 13 to 14 Tracking Area Code (TAC) */
6205 /* 8.51.5 Extended Macro eNodeB ID */
6208 /* Octet 12 to 13 Tracking Area Code (TAC) */
6213 /* gNodeB ID */
6216 /* Octet 14 to 16 5GS Tracking Area Code (TAC) */
6221 /* Macro ng-eNodeB ID */
6223 /* Octet 14 to 16 5GS Tracking Area Code (TAC) */
6228 /* Extended ng-eNodeB ID */
6230 /* Octet 12 to 14 5GS Tracking Area Code (TAC) */
6235 /* en-gNB ID */
6238 /* Octet 9 5TAC ETAC en-gNB ID Length */
6243 offset++;
6245 /* Octet 10 to 13 en-gNB ID */
6250 /* ETAC*/
6251 /* p to (p+1 */
6255 }
6257 /* 5 TAC*/
6258 /* q to(q + 2) */
6260 }
6265 }
6266 proto_tree_add_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, length-offset);
6268 }
6270 /*
6271 * 8.52 Void
6272 */
6273 /*
6274 * 8.53 Packet Flow ID
6275 */
6276 static void
6277 dissect_gtpv2_pkt_flow_id(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6278 {
6281 /* Octet 5 Spare EBI */
6286 /* Packet Flow ID */
6289 }
6290 /*
6291 * 8.54 RAB Context
6292 */
6293 static void
6294 dissect_gtpv2_rab_context(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6295 {
6298 /* 5 Spare NSAPI */
6301 offset++;
6303 /* 6 to 7 DL GTP-U Sequence Number */
6307 /* 8 to 9 UL GTP-U Sequence Number */
6311 /* 10 to 11 DL PDCP Sequence Number */
6315 /* 12 to 13 UL PDCP Sequence Number */
6318 }
6320 /*
6321 * 8.55 Source RNC PDCP context info
6322 */
6323 static void
6324 dissect_gtpv2_s_rnc_pdcp_ctx_info(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6325 {
6327 }
6329 /*
6330 * 8.56 Port Number
6331 */
6332 static void
6333 dissect_port_nr(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6334 {
6337 }
6338 /*
6339 * 8.57 APN Restriction
6340 */
6342 /* Table 8.57-1: Valid Combinations of APN Restriction */
6350 };
6351 static value_string_ext gtpv2_apn_restriction_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_apn_restriction_vals);
6353 static void
6354 dissect_gtpv2_apn_rest(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6355 {
6359 /* APN restriction value octet 5 */
6363 /* Add APN restriction to ie_tree */
6364 proto_item_append_text(item, "%s (%u)", val_to_str_ext_const(type_value, >pv2_apn_restriction_vals_ext, "Unknown"), type_value);
6369 }
6371 /*
6372 * 8.58 Selection Mode
6373 */
6380 };
6382 void
6383 dissect_gtpv2_selec_mode(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6384 {
6390 proto_item_append_text(item, "%s", val_to_str_const(ss_mode, gtpv2_selec_mode_vals, "Unknown"));
6391 }
6394 /*
6395 * 8.59 Source Identification
6396 */
6397 #if 0
6403 };
6404 #endif
6405 static void
6406 dissect_gtpv2_source_ident(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6407 {
6411 /* Octet 5 to 12 Target Cell ID */
6414 /* Octet 13 Source Type */
6418 /* Octet 14 to (n+4) Source ID */
6421 /* The Source Type is Cell ID for PS handover from GERAN A/Gb mode. In this case the coding of the Source ID field
6422 * shall be same as the Octets 3 to 10 of the Cell Identifier IEI in 3GPP TS 48.018 [34].
6423 */
6427 /* The Source Type is RNC ID for PS handover from GERAN Iu mode or for inter-RAT handover from UTRAN. In this
6428 * case the Source ID field shall be encoded as the Source RNC-ID part of the "Source ID" parameter in 3GPP TS
6429 * 25.413 [33].
6430 */
6431 /* RNC-ID M INTEGER (0..4095) */
6438 }
6440 }
6442 /*
6443 * 8.60 Bearer Control Mode
6444 */
6450 };
6457 };
6459 static void
6460 dissect_gtpv2_bearer_control_mode(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6461 {
6465 /* Add Bearer Control Mode to tree */
6467 proto_item_append_text(item, "%s", val_to_str_const(bcm, gtpv2_bearer_control_mode_short_vals, "Unknown"));
6469 }
6470 /*
6471 * 8.61 Change Reporting Action
6472 */
6482 };
6484 static void
6485 dissect_gtpv2_cng_rep_act(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6486 {
6489 /* Add Action to tree */
6493 proto_item_append_text(item, "%s", val_to_str_const(action, gtpv2_cng_rep_act_vals, "Unknown"));
6494 }
6495 /*
6496 * 8.62 Fully qualified PDN Connection Set Identifier (FQ-CSID)
6497 */
6498 #if 0
6504 };
6505 #endif
6507 void
6508 dissect_gtpv2_fq_csid(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6509 {
6513 /* Octet 5 Node-ID Type Number of CSIDs= m */
6524 /* Indicates that Node-ID is a global unicast IPv4 address and p = 9 */
6529 /* Indicates that Node-ID is a global unicast IPv6 address and p = 21 */
6534 /* Node-ID is a 4 octets long field with a 32 bit value stored in network order, and p= 9. The coding
6535 * of the field is specified below:
6536 * - Most significant 20 bits are the binary encoded value of (MCC * 1000 + MNC).
6537 * - Least significant 12 bits is a 12 bit integer assigned by an operator to an MME, SGW or PGW. Other values of
6538 * Node-ID Type are reserved.
6539 */
6548 }
6550 /* First PDN Connection Set Identifier (CSID)
6551 * Second PDN Connection Set Identifier (CSID)
6552 * :
6553 * m-th PDN Connection Set Identifier (CSID)
6554 */
6558 }
6560 }
6562 /*
6563 * 8.63 Channel needed
6564 */
6565 static void
6566 dissect_gtpv2_channel_needed(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6567 {
6568 /* The Channel needed shall be coded as depicted in Figure 8.63-1. Channel needed is coded as the IEI part and the value
6569 * part of the Channel Needed IE defined in 3GPP TS 44.018[28]
6570 */
6572 }
6574 /*
6575 * 8.64 eMLPP Priority
6576 * The eMLPP-Priority shall be coded as depicted in Figure 8.64-1. The eMLPP Priority is coded as the value part of the
6577 * eMLPP-Priority IE defined in 3GPP TS 48.008 [29] (not including 3GPP TS 48.008 IEI and 3GPP TS 48.008 [29]
6578 * length indicator).
6579 */
6580 static void
6581 dissect_gtpv2_emlpp_pri(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6582 {
6585 }
6587 /*
6588 * 8.65 Node Type
6589 */
6594 };
6596 static void
6597 dissect_gtpv2_node_type(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6598 {
6602 /* Append Node Type to tree */
6604 proto_item_append_text(item, "%s", val_to_str_const(node_type, gtpv2_node_type_vals, "Unknown"));
6606 }
6608 /*
6609 * 8.66 Fully Qualified Domain Name (FQDN)
6610 */
6611 static int
6612 decode_gtpv2_fqdn(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, int offset, uint16_t length)
6613 {
6617 /* The FQDN field encoding shall be identical to the encoding of
6618 * a FQDN within a DNS message of section 3.1 of IETF
6619 * RFC 1035 [31] but excluding the trailing zero byte.
6620 *
6621 * XXX: is compression possible?
6622 */
6626 /* "NOTE 1: The FQDN field in the IE is not encoded as a dotted string"
6627 * but if the first byte is large (in the letter range or higher),
6628 * assume that it is so encoded incorrectly.
6629 */
6631 proto_tree_add_item_ret_string(tree, hf_gtpv2_fqdn, tvb, offset, length, ENC_APN_STR, pinfo->pool, &fqdn);
6633 proto_tree_add_item_ret_string(tree, hf_gtpv2_fqdn, tvb, offset, length, ENC_ASCII, pinfo->pool, &fqdn);
6634 }
6636 }
6639 }
6641 static void
6642 dissect_gtpv2_fqdn(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6643 {
6646 }
6648 /*
6649 * 8.67 Private Extension
6650 */
6651 static void
6652 dissect_gtpv2_private_ext(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length, uint8_t message_type _U_, uint8_t instance, session_args_t * args _U_)
6653 {
6657 gtpv2_priv_ext_info_t gtpv2_inf;
6662 /* oct 5 -7 Enterprise ID */
6670 if (dissector_try_uint_with_data(gtpv2_priv_ext_dissector_table, ext_id, next_tvb, pinfo, tree, false, >pv2_inf)){
6672 }
6675 }
6677 /*
6678 * 8.68 Transaction Identifier (TI)
6679 */
6680 static void
6681 dissect_gtpv2_ti(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6682 {
6683 /* 5 to (n+4) Transaction Identifier */
6686 }
6688 /*
6689 * 8.69 MBMS Session Duration
6690 */
6691 void
6692 dissect_gtpv2_mbms_session_duration(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6693 {
6703 /* From 3GPP TS 29.061 17.7.7 MBMS-Session-Duration AVP */
6704 /* Bits: ssss ssss ssss ssss sddd dddd where s bits = seconds, d bits = days */
6710 /* The lowest value of this AVP (i.e. all 0:s) is reserved to indicate an indefinite value to denote sessions that are expected to be always-on. */
6712 day_item = proto_tree_add_item(tree, hf_gtpv2_mbms_session_duration_days, tvb, offset, 3, ENC_BIG_ENDIAN);
6713 sec_item = proto_tree_add_item(tree, hf_gtpv2_mbms_session_duration_secs, tvb, offset, 3, ENC_BIG_ENDIAN);
6720 day_item = proto_tree_add_item(tree, hf_gtpv2_mbms_session_duration_days, tvb, offset, 3, ENC_BIG_ENDIAN);
6721 sec_item = proto_tree_add_item(tree, hf_gtpv2_mbms_session_duration_secs, tvb, offset, 3, ENC_BIG_ENDIAN);
6722 proto_item_append_text(item, "%d days %02d:%02d:%02d (DD days HH:MM:SS)", days, hours, minutes, seconds);
6723 }
6725 /* Maximum allowed value for days: 18.
6726 * Maximum allowed value for seconds: 86,400 */
6729 }
6732 }
6737 }
6739 /*
6740 * 8.70 MBMS Service Area
6741 */
6742 void
6743 dissect_gtpv2_mbms_service_area(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6744 {
6754 /* 3GPP TS 29.061 17.7.6 MBMS-Service-Area AVP */
6758 /* A consecutive list of MBMS Service Area Identities follow, each with a length of two octets. */
6760 /* 3GPP TS 23.003 15.3 Structure of MBMS SAI */
6762 sai_item = proto_tree_add_item(tree, hf_gtpv2_mbms_service_area_id, tvb, offset, 2, ENC_BIG_ENDIAN);
6763 /* The value 0 denotes the whole of PLMN as the MBMS Service Area */
6766 }
6769 }
6770 }
6772 /*
6773 * 8.71 MBMS Session Identifier
6774 */
6775 static void
6776 dissect_gtpv2_mbms_session_id(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length, _U_ uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6777 {
6779 /* One octet OctetString. */
6785 }
6787 /*
6788 * 8.72 MBMS Flow Identifier
6789 */
6790 static void
6791 dissect_gtpv2_mbms_flow_id(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6792 {
6794 /* Two octets OctetString. */
6801 }
6803 /*
6804 * 8.73 MBMS IP Multicast Distribution
6805 */
6810 };
6812 static void
6813 dissect_gtpv2_mbms_ip_mc_dist(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6814 {
6822 /* IP Multicast Distribution Address */
6833 }
6837 /* IP Multicast Source Address */
6848 }
6856 }
6858 /*
6859 * 8.74 MBMS Distribution Acknowledge
6860 */
6867 };
6869 static void
6870 dissect_gtpv2_mbms_dist_ack(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6871 {
6879 }
6881 /*
6882 * 8.75 User CSG Information (UCI)
6883 */
6888 };
6896 };
6902 };
6904 static void
6905 dissect_gtpv2_uci(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6906 {
6909 /* Value of MCC & MNC */
6912 /* Value of CSG ID */
6917 /* Value of access mode */
6920 /* Value of LCSG */
6923 /* Value of CSG membership */
6926 }
6928 /* 8.76 CSG Information Reporting Action */
6929 static void
6930 dissect_gtpv2_csg_info_rep_action(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6931 {
6938 NULL
6939 };
6943 }
6944 /* Spare UCIUHC UCISHC UCICSG */
6948 }
6950 /* 8.77 RFSP Index */
6951 static void
6952 dissect_gtpv2_rfsp_index(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6953 {
6960 }
6961 }
6963 /* 8.78 CSG ID */
6964 static void
6965 dissect_gtpv2_csg_id(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6966 {
6971 }
6972 }
6974 /* 8.79 CSG Membership Indication (CMI) */
6975 static void
6976 dissect_gtpv2_cmi(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6977 {
6982 }
6983 }
6985 /* 8.80 Service indicator */
6990 };
6992 static void
6993 dissect_gtpv2_service_indicator(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
6994 {
6996 }
6998 /* 8.81 Detach Type */
7003 };
7005 static void
7006 dissect_gtpv2_detach_type(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7007 {
7009 }
7011 /* 8.82 Local Distinguished Name (LDN) */
7012 static void
7013 dissect_gtpv2_ldn(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7014 {
7016 }
7018 /* 8.83 Node Features */
7019 static void
7020 dissect_gtpv2_node_features(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7021 {
7032 NULL
7033 };
7036 offset++;
7039 }
7041 /* 8.84
7042 * MBMS Time to Data Transfer
7043 */
7044 void
7045 dissect_gtpv2_mbms_time_to_data_xfer(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7046 {
7054 proto_tree_add_string_format_value(tree, hf_gtpv2_time_to_data_xfer, tvb, offset, 1, "", "%d second(s)", real_secs);
7059 }
7069 };
7071 /* 8.85 Throttling */
7072 static void
7073 dissect_gtpv2_throttling(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7074 {
7080 offset++;
7086 offset++;
7092 }
7094 /* 8.86 Allocation/Retention Priority (ARP) */
7095 void
7096 dissect_gtpv2_arp(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7097 {
7107 }
7109 /* 8.87 EPC Timer */
7120 };
7122 void
7123 dissect_gtpv2_epc_timer(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length _U_, uint8_t message_type, uint8_t instance _U_, session_args_t * args _U_)
7124 {
7129 }
7130 /* XXX Todo: use code from packet-gsm_a_gm.c ? 10.5.7.4a GPRS TIMER 3*/
7134 }
7136 /* 8.88 Signalling Priority Indication */
7137 static void
7138 dissect_gtpv2_sig_prio_ind(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7139 {
7141 }
7143 /* 8.89 Temporary Mobile Group Identity (TMGI) */
7144 static void
7145 dissect_gtpv2_tmgi(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7146 {
7162 }
7164 /*
7165 * 8.90 Additional MM context for SRVCC
7166 * 3GPP TS 29.274 Figure 8.90-1
7167 */
7168 static void
7169 dissect_gtpv2_add_mm_cont_for_srvcc(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7170 {
7176 /* Length of Mobile Station Classmark 2 */
7181 /* For each of the Mobile Station Classmark 2, Mobile Station Classmark 3 and Supported Codec List parameters,
7182 * if they are not available, then the associated length field shall be set to zero, and the particular
7183 * parameter field shall not be present.
7184 */
7186 ms_cm_item = proto_tree_add_item(tree, hf_gtpv2_mobile_station_classmark2, tvb, offset, elm_len, ENC_NA);
7188 /* Mobile Station Classmark 2 */
7191 }
7193 /* Length of Mobile Station Classmark 3 */
7198 ms_cm_item = proto_tree_add_item(tree, hf_gtpv2_mobile_station_classmark3, tvb, offset, elm_len, ENC_NA);
7200 /* Mobile Station Classmark 3 */
7203 }
7205 /* Length of Supported Codec List */
7210 ms_cm_item = proto_tree_add_item(tree, hf_gtpv2_supported_codec_list, tvb, offset, elm_len, ENC_NA);
7212 /* Supported Codec List */
7215 }
7219 }
7221 /* 8.91 Additional flags for SRVCC */
7222 static void
7223 dissect_gtpv2_add_flags_for_srvcc(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7224 {
7233 }
7235 /* 8.92 Max MBR/APN-AMBR (MMBR) */
7236 static void
7237 dissect_gtpv2_mmbr(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7238 {
7254 }
7256 /* 8.93 MDT Configuration */
7257 static void
7258 dissect_gtpv2_mdt_config(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7259 {
7261 }
7263 /* 8.94 Additional Protocol Configuration Options (APCO) */
7264 static void
7265 dissect_gtpv2_apco(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7266 {
7274 /* PCO options as MS to network direction */
7283 /* PCO options as Network to MS direction: */
7288 }
7290 }
7292 /* 8.95 Absolute Time of MBMS Data Transfer */
7293 static void
7294 dissect_gtpv2_abs_mbms_data_tf_time(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7295 {
7299 proto_tree_add_item_ret_time_string(tree, hf_gtpv2_abs_time_mbms_data, tvb, offset, 8, ENC_TIME_NTP | ENC_BIG_ENDIAN, pinfo->pool, &time_str);
7305 }
7307 /* 8.96 H(e)NB Information Reporting */
7311 };
7313 static void
7314 dissect_gtpv2_henb_info_report(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7315 {
7323 }
7325 /* 8.97 IPv4 Configuration Parameters (IP4CP) */
7326 static void
7327 dissect_gtpv2_ip4cp(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7328 {
7338 }
7340 /* 8.98 Change to Report Flags */
7341 static void
7342 dissect_gtpv2_change_report_flags(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7343 {
7352 }
7354 /* 8.99 Action Indication */
7365 };
7366 static value_string_ext gtpv2_action_indication_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_action_indication_vals);
7368 static void
7369 dissect_gtpv2_action_indication(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7370 {
7378 }
7380 /*
7381 * 8.100 TWAN Identifier
7382 */
7387 };
7389 void
7390 dissect_gtpv2_twan_identifier(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7391 {
7401 NULL
7402 };
7404 /* Octet 5 Spare LAII OPNAI PLMNI CIVAI BSSIDI */
7406 proto_tree_add_bitmask(tree, tvb, offset, hf_gtpv2_twan_flags, ett_gtpv2_twan_flags, twan_id_flags, ENC_BIG_ENDIAN);
7407 offset++;
7408 /* Octet 6 SSID Length */
7409 proto_tree_add_item_ret_uint(tree, hf_gtpv2_twan_ssid_len, tvb, offset, 1, ENC_BIG_ENDIAN, &ssid_len);
7411 /* 7 to k SSID */
7414 /* (k+1) to (k+6) BSSID The BSSIDI flag in octet 5 indicates whether the BSSID in octets 'k+1' to 'k+6' shall be present.*/
7418 }
7419 /* q Civic Address Length The CIVAI flag in octet 5 indicates whether the Civic Address Length
7420 * and Civic Address Information in octets 'q' and 'q+1' to 'q+r' shall be present.
7421 */
7423 proto_tree_add_item_ret_uint(tree, hf_gtpv2_twan_civa_len, tvb, offset, 1, ENC_BIG_ENDIAN, &civa_len);
7425 /* (q+1) to (q+r) Civic Address Information
7426 * ...it shall be encoded as defined in subclause 3.1 of IETF RFC 4776 [59] excluding the first 3 octets.
7427 * RFC 4776:
7428 * 3.1. Overall Format for DHCPv4
7430 * 0 1 2 3
7431 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
7432 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
7433 * | GEOCONF_CIVIC | N | what | country |
7434 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
7435 * | code | civic address elements ...
7436 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
7437 */
7440 }
7441 /* s to (s+3) TWAN PLMN-ID The PLMNI flag in octet 5 indicates whether the TWAN PLMN-ID
7442 * in octets 's' to 's+3' shall be present
7443 */
7447 /* (q+1) to (q+r) Civic Address Information
7448 * ...it shall be encoded as defined in subclause 3.1 of IETF RFC 4776 [59] excluding the first 3 octets.
7449 */
7450 }
7451 /* t TWAN Operator Name Length, The OPNAI flag in octet 5 indicates whether the TWAN Operator Name Length and
7452 * TWAN Operator Name in octets 't' and 't+1' to 't+u' shall be present.
7453 */
7455 proto_tree_add_item_ret_uint(tree, hf_gtpv2_twan_op_name_len, tvb, offset, 1, ENC_BIG_ENDIAN, &op_name_len);
7457 /* (t+1) to (t+u) TWAN Operator Name. The TWAN Operator Name shall be encoded as specified in subclause 19. 8 of 3GPP TS 23.003 */
7460 }
7461 /* The LAII flag in octet 5 indicates whether the Logical Access ID information is present in the TWAN Identifier */
7463 /* v Relay Identity Type */
7464 proto_tree_add_item_ret_uint(tree, hf_gtpv2_twan_relay_id_type, tvb, offset, 1, ENC_BIG_ENDIAN, &relay_id_type);
7466 /* (v+1) Relay Identity Length*/
7467 proto_tree_add_item_ret_uint(tree, hf_gtpv2_twan_relay_id_len, tvb, offset, 1, ENC_BIG_ENDIAN, &relay_id_len);
7469 /* (v+2) to (v+w) Relay Identity */
7472 /* IPv4 or IPv6 Address */
7474 /* IPv4 */
7480 }
7483 /* fall trough */
7488 }
7489 /* X Circuit-ID Length */
7490 proto_tree_add_item_ret_uint(tree, hf_gtpv2_twan_circuit_id_len, tvb, offset, 1, ENC_BIG_ENDIAN, &circuit_id_id_len);
7492 /* (x+1) to (x+y) Circuit-ID */
7495 }
7498 proto_tree_add_expert_format(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, -1, "The rest of the IE not dissected yet");
7499 }
7501 }
7502 /*
7503 * 8.101 ULI Timestamp
7504 */
7505 static void
7506 dissect_gtpv2_uli_timestamp(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7507 {
7510 /* Octets 5 to 8 are encoded in the same format as the first four octets of the 64-bit timestamp
7511 * format as defined in section 6 of IETF RFC 5905
7512 */
7514 proto_tree_add_item_ret_time_string(tree, hf_gtpv2_uli_timestamp, tvb, 0, 4, ENC_TIME_NTP|ENC_BIG_ENDIAN, pinfo->pool, &time_str);
7517 }
7518 /*
7519 * 8.102 MBMS Flags
7520 */
7521 static void
7522 dissect_gtpv2_mbms_flags(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7523 {
7525 }
7526 /*
7527 * 8.103 RAN/NAS Cause
7528 */
7536 };
7538 static void
7539 dissect_gtpv2_ran_nas_cause(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7540 {
7551 }
7571 proto_tree_add_item(tree, hf_gtpv2_ran_nas_cause_value, tvb, offset, length - offset, ENC_BIG_ENDIAN);
7573 }
7574 }
7575 /*
7576 * 8.104 CN Operator Selection Entity
7577 */
7578 static void
7579 dissect_gtpv2_cn_operator_selection_entity(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7580 {
7582 }
7583 /*
7584 * 8.105 Trusted WLAN Mode Indication
7585 */
7586 static void
7587 dissect_gtpv2_trust_wlan_mode_ind(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7588 {
7590 }
7591 /*
7592 * 8.106 Node Number
7593 */
7594 static void
7595 dissect_gtpv2_node_number(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7596 {
7601 /* Octet 5 Length of Node Number*/
7602 proto_tree_add_item_ret_uint(tree, hf_gtpv2_node_number_len, tvb, offset, 1, ENC_BIG_ENDIAN, &len);
7605 /* The Node number shall carry an ISDN number...
7606 * shall be coded according to the contents of ISDN-AddressString data type
7607 * defined in 3GPP TS 29.002
7608 */
7611 }
7612 /*
7613 * 8.107 Node Identifier
7614 */
7615 static void
7616 dissect_gtpv2_node_identifier(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7617 {
7621 /*
7622 RFC 6733
7623 DiameterIdentity
7625 The DiameterIdentity format is derived from the OctetString Basic
7626 AVP Format....In this document, note that DiameterIdentity is
7627 in ASCII form.
7629 TS 29.274
7631 If the Node Identifier contains a SGSN Identifier then:
7632 - the Node Name shall be coded as the Diameter identity of the SGSN as defined in subclause 6.4.13 of 3GPP TS 29.173 [57] and;
7633 - the Node Realm shall be coded as the Diameter realm identity of the SGSN and as defined in subclause 6.4.14 of 3GPP TS 29.173 [57] and;
7634 - Both the Node Name and the Node Realm shall be present and neither the Length of Node Name nor the Length of Node Realm shall be zero.
7635 6.4.13 SGSN-Name
7636 The SGSN-Name AVP is of type DiameterIdentity...see IETF RFC 6733
7637 6.4.14 SGSN-Realm
7638 The SGSN-Realm AVP is of type DiameterIdentity...see IETF RFC 6733
7640 If the Node Identifier contains a MME Identifier then:
7641 - the Node Name shall be coded as the Diameter identity of the MME as defined in subclause 6.4.4 of 3GPP TS 29.173 [57] and;
7642 - the Node Realm shall be coded as the Diameter realm identity of the MME as defined in subclause 6.4.12 of 3GPP TS 29.173 [57] and;
7643 - Both the Node Name and the Node Realm shall be present and neither the Length of Node Name nor the Length of Node Realm shall be zero.
7644 6.4.4 MME-Name
7645 The MME-Name AVP is of type DiameterIdentity...see IETF RFC 6733
7646 6.4.12 MME-Realm
7647 The MME-Realm AVP is of type DiameterIdentity...see IETF RFC 6733
7649 If the Node Identifer contains a 3GPP AAA Server Identifier then:
7650 - the Node Name shall be coded as the 3GPP-AAA-Server-Name as defined in subclause 8.2.3.24 of 3GPP TS 29.273 [68] and;
7651 8.2.3.24 3GPP-AAA-Server-Name
7652 The 3GPP-AAA-Server-Name AVP is of type DiameterIdentity
7653 - the Node Realm shall be coded as the Diameter realm of the 3GPP AAA server in the format of a Diameter identity as defined in IETF RFC 3588 [39].
7655 If the Node Identifier contains an SCEF/IWK-SCEF information, then:
7656 - the Node Name shall be coded as the SCEF-ID as defined in subclause 8.4.5 of 3GPP TS 29.336 [69] and;
7657 8.4.5 SCEF-ID
7658 The SCEF- ID AVP is of type DiameterIdentity
7659 - the Node Realm shall be coded as the Diameter realm of the SCEF as defined in subclause 7.3.207 of 3GPP TS 29.272 [70].
7661 */
7662 /* Octet 5 Length of Node Name */
7663 proto_tree_add_item_ret_uint(tree, hf_gtpv2_length_of_node_name, tvb, offset, 1, ENC_BIG_ENDIAN, &name_len);
7664 offset++;
7665 /* Node Name */
7668 /* Length of Node Realm */
7669 proto_tree_add_item_ret_uint(tree, hf_gtpv2_length_of_node_realm, tvb, offset, 1, ENC_BIG_ENDIAN, &name_len);
7670 offset++;
7671 /* Node Realm */
7675 proto_tree_add_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, length- offset);
7676 }
7677 }
7678 /*
7679 * 8.108 Presence Reporting Area Action
7680 */
7682 /*
7683 * The Presence-Reporting-Area-Elements-List AVP (AVP code 2820)
7684 * is of type Octetstring and is coded as specified in 3GPP TS 29.274 [22]
7685 * in Presence Reporting Area Action IE, starting from octet 9.
7686 */
7688 static int
7689 dissect_diameter_3gpp_presence_reporting_area_elements_list(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data _U_)
7690 {
7691 /*diam_sub_dis_t *diam_sub_dis = (diam_sub_dis_t*)data;*/
7700 /* Octet 9 Number of TAI Number of RAI */
7701 proto_tree_add_item_ret_uint(tree, hf_gtpv2_pres_rep_area_act_no_tai, tvb, offset, 1, ENC_BIG_ENDIAN, &no_tai);
7702 proto_tree_add_item_ret_uint(tree, hf_gtpv2_pres_rep_area_act_no_rai, tvb, offset, 1, ENC_BIG_ENDIAN, &no_rai);
7703 offset++;
7704 /* Octet 10 Spare Number of Macro eNodeB */
7705 proto_tree_add_item_ret_uint(tree, hf_gtpv2_pres_rep_area_act_no_m_enodeb, tvb, offset, 1, ENC_BIG_ENDIAN, &no_mENB);
7706 offset++;
7707 /* Octet 11 Spare Number of Home eNodeB */
7708 proto_tree_add_item_ret_uint(tree, hf_gtpv2_pres_rep_area_act_no_h_enodeb, tvb, offset, 1, ENC_BIG_ENDIAN, &no_hENB);
7709 offset++;
7710 /* Octet 12 Spare Number of ECGI */
7711 proto_tree_add_item_ret_uint(tree, hf_gtpv2_pres_rep_area_act_no_ecgi, tvb, offset, 1, ENC_BIG_ENDIAN, &no_ECGI);
7712 offset++;
7713 /* Octet 13 Spare Number of SAI */
7714 proto_tree_add_item_ret_uint(tree, hf_gtpv2_pres_rep_area_act_no_sai, tvb, offset, 1, ENC_BIG_ENDIAN, &no_sai);
7715 offset++;
7716 /* Octet 14 Spare Number of CGI */
7717 proto_tree_add_item_ret_uint(tree, hf_gtpv2_pres_rep_area_act_no_cgi, tvb, offset, 1, ENC_BIG_ENDIAN, &no_cgi);
7718 offset++;
7719 /* Octet 15 to k TAIs [1..15] */
7722 sub_tree = proto_tree_add_subtree_format(tree, tvb, offset, 5, ett_gtpv2_preaa_tais, &item, "Tracking Area Identity (TAI) Number %u",i);
7725 i++;
7726 no_tai--;
7727 }
7728 /* Octet (k+1) to m Macro eNB IDs [1..63]
7729 * Macro eNB IDs in octets 'k+1' to 'm', if any, shall be encoded as per octets 6 to 11 of the Target ID for type Macro eNodeB in figure 8.51-2.
7730 * Octets 'k+1' to 'm' shall be absent if the field 'Number of Macro eNodeB' is set to the value '0'.
7731 */
7734 sub_tree = proto_tree_add_subtree_format(tree, tvb, offset, 6, ett_gtpv2_preaa_menbs, &item, "Macro eNB ID %u",i);
7737 i++;
7738 no_mENB--;
7739 }
7740 /* Octet (m+1) to p Home eNB IDs [1..63]
7741 * Home eNB IDs in octets 'm+1' to 'p', if any, shall be encoded as per octets 6 to 12 of the Target ID for type Home eNodeB in figure 8.51-3.
7742 * Octets 'm+1' to 'p' shall be absent if the field 'Number of Home eNodeB' is set to the value '0'.
7743 */
7746 sub_tree = proto_tree_add_subtree_format(tree, tvb, offset, 7, ett_gtpv2_preaa_henbs, &item, "Home eNB ID %u",i);
7749 i++;
7750 no_hENB--;
7751 }
7752 /* Octet (p+1) to q ECGIs [1..63]
7753 * ECGIs in octets 'p+1' to 'q', if any, shall be encoded as per the ECGI field in subclause 8.21.5.
7754 * Octets 'p+1' to 'q' shall be absent if the field 'Number of ECGI' is set to the value '0'.
7755 */
7758 sub_tree = proto_tree_add_subtree_format(tree, tvb, offset, 7, ett_gtpv2_preaa_ecgis, &item, "ECGI ID %u",i);
7761 i++;
7762 no_ECGI--;
7763 }
7764 /* Octet (q+1) to r RAIs [1..15]
7765 * RAIs in octets 'q+1' to 'r', if any, shall be encoded as per the RAI field in subclause 8.21.3.
7766 * Octets 'q+1' to 'r' shall be absent if the field 'Number of RAI' is set to the value '0'.
7767 */
7770 sub_tree = proto_tree_add_subtree_format(tree, tvb, offset, 7, ett_gtpv2_preaa_rais, &item, "RAI ID %u",i);
7773 i++;
7774 no_rai--;
7775 }
7776 /* Octet (r+1) to s SAIs [1..63]
7777 * SAIs in octets 'r+1' to 's', if any, shall be encoded as per the SAI field in subclause 8.21.2.
7778 * Octets 'r+1' to 's' shall be absent if the field 'Number of SAI' is set to the value '0'.
7779 */
7782 sub_tree = proto_tree_add_subtree_format(tree, tvb, offset, 7, ett_gtpv2_preaa_sais, &item, "SAI ID %u",i);
7785 i++;
7786 no_sai--;
7787 }
7788 /* Octet (s+1) to t CGIs [1..63]
7789 * CGIs in octets 's+1' to 't', if any, shall be encoded as per the CGI field in subclause 8.21.1.
7790 * Octets 's+1' to 't' shall be absent if the field 'Number of CGI' is set to the value '0'.
7791 */
7794 sub_tree = proto_tree_add_subtree_format(tree, tvb, offset, 7, ett_gtpv2_preaa_cgis, &item, "CGI ID %u",i);
7797 i++;
7798 no_cgi--;
7799 }
7802 /* Octet t+1 Spare Number of Extended Macro eNodeB */
7803 proto_tree_add_item_ret_uint(tree, hf_gtpv2_pres_rep_area_act_no_ext_m_enodeb, tvb, offset, 1, ENC_BIG_ENDIAN, &no_ext_mENB);
7804 offset++;
7805 /* Octet (t+2) to v Extended Macro eNB IDs [1..63]
7806 * Extended Macro eNB IDs in octets 't+2' to 'v', if any, shall be encoded as per octets 6 to 11 of the Target ID for type Extended Macro eNodeB in figure 8.51-5.
7807 * Octets 'k+1' to 'm' shall be absent if the field 'Number of Extended Macro eNodeB' is set to the value '0'.
7808 */
7811 sub_tree = proto_tree_add_subtree_format(tree, tvb, offset, 6, ett_gtpv2_preaa_ext_menbs, &item, "Extended Macro eNB ID %u",i);
7812 append_str = dissect_gtpv2_ext_macro_enodeb_id(tvb, pinfo, sub_tree, &offset, hf_gtpv2_ext_macro_enodeb_id);
7814 i++;
7815 no_ext_mENB--;
7816 }
7819 }
7826 };
7828 static void
7829 dissect_gtpv2_pres_rep_area_action(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7830 {
7837 NULL
7838 };
7840 /* Octet 5 Spare INAPRA Action */
7842 offset++;
7846 /* Octet 6 to 8 Presence Reporting Area Identifier */
7854 /* Share the rest of the dissection with the AVP dissector */
7857 }
7858 /*
7859 * 8.109 Presence Reporting Area Information
7860 */
7861 static void
7862 dissect_gtpv2_pres_rep_area_information(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7863 {
7867 /*Octet 5 to 7 Presence Reporting Area Identifier */
7871 /*Octet 8 Spare Spare Spare Spare INAPRA APRA OPRA IPRA */
7878 NULL
7879 };
7881 proto_tree_add_bitmask_with_flags_ret_uint64(tree, tvb, offset, hf_gtpv2_pres_rep_area_info_flags, ett_gtpv2_pres_rep_area_info,
7882 gtpv2_pres_rep_area_info_flags, ENC_BIG_ENDIAN, BMT_NO_FALSE | BMT_NO_INT | BMT_NO_TFS, >pv2_pres_rep_area_info_flags_val);
7885 /* 3GPP TS 29.212 v14.7.0:
7886 * If the Additional PRA (APRA) flag is set to 1, [...]
7887 * subsequent 4 octets shall then be present
7888 * and shall contain the identifier of the individual PRA
7889 */
7891 /* Octets a to (a+2) Additional PRA Identifier */
7892 proto_tree_add_item(tree, hf_gtpv2_pres_rep_area_info_additional_id, tvb, offset, 3, ENC_BIG_ENDIAN);
7895 /*Octet a+3 Spare Spare Spare Spare Spare APRA OPRA IPRA */
7901 NULL
7902 };
7905 proto_tree_add_bitmask_with_flags_ret_uint64(tree, tvb, offset, hf_gtpv2_pres_rep_area_info_flags_no_inapra, ett_gtpv2_pres_rep_area_info,
7906 gtpv2_pres_rep_area_info_flags_no_inapra, ENC_BIG_ENDIAN, BMT_NO_FALSE | BMT_NO_INT | BMT_NO_TFS, >pv2_pres_rep_area_info_flags_val);
7910 /* Octets b to (b+2) Additional PRA Identifier */
7911 proto_tree_add_item(tree, hf_gtpv2_pres_rep_area_info_additional_id, tvb, offset, 3, ENC_BIG_ENDIAN);
7913 }
7914 }
7915 }
7916 }
7917 /*
7918 * 8.110 TWAN Identifier Timestamp
7919 */
7920 static void
7921 dissect_gtpv2_twan_identifier_timestamp(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7922 {
7925 /* TWAN Identifier Timestamp value */
7926 /* Octets 5 to 8 are encoded in the same format as the first four octets of the 64-bit timestamp
7927 * format as defined in section 6 of IETF RFC 5905
7928 */
7930 proto_tree_add_item_ret_time_string(tree, hf_gtpv2_twan_id_ts, tvb, 0, 4, ENC_TIME_NTP | ENC_BIG_ENDIAN, pinfo->pool, &time_str);
7933 }
7934 /*
7935 * 8.111 Overload Control Information
7936 */
7937 static void
7939 dissect_gtpv2_overload_control_inf(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree _U_, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7940 {
7950 dissect_gtpv2_ie_common(new_tvb, pinfo, grouped_tree, offset, message_type, args, GTPV2_IE_OVERLOAD_CONTROL_INF);
7951 }
7952 /*
7953 * 8.112 Load Control Information
7954 */
7955 static void
7956 dissect_gtpv2_load_control_inf(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree _U_, proto_item *item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7957 {
7966 dissect_gtpv2_ie_common(new_tvb, pinfo, grouped_tree, 0, message_type, args, GTPV2_IE_LOAD_CONTROL_INF);
7967 }
7968 /*
7969 * 8.113 Metric
7970 */
7971 static void
7972 dissect_gtpv2_metric(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7973 {
7982 }
7983 }
7984 /*
7985 * 8.114 Sequence Number
7986 */
7987 static void
7988 dissect_gtpv2_seq_no(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7989 {
7993 }
7994 /*
7995 * 8.115 APN and Relative Capacity
7996 */
7997 static void
7998 dissect_gtpv2_apn_and_relative_capacity(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
7999 {
8015 pi = proto_tree_add_item_ret_string(tree, hf_gtpv2_apn, tvb, offset, apn_length, ENC_APN_STR | ENC_NA, pinfo->pool, &apn);
8018 }
8019 }
8020 /*
8021 * 8.117 Paging and Service Information
8022 */
8023 static void
8024 dissect_gtpv2_paging_and_service_inf(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
8025 {
8029 /* Spare (all bits set to 0) B8 - B5 */
8031 /* EPS Bearer ID (EBI) B4 - B1 */
8035 /* Spare B8 - B2 */
8037 /* Paging Policy Indication flag (PPI) */
8043 /* Spare B8 - B7 */
8045 /* Paging Policy Indication Value */
8046 proto_item_append_text(tree, " (PPI Value: %s)", val_to_str_ext_const(tvb_get_uint8(tvb, offset), &dscp_vals_ext, "Unknown"));
8048 }
8049 }
8050 /*
8051 * 8.118 Integer Number
8052 */
8053 static void
8054 dissect_gtpv2_integer_number(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, uint16_t length, uint8_t message_type, uint8_t instance _U_, session_args_t * args _U_)
8055 {
8057 /* The Integer Number value shall be encoded as further described below for the following information elements:
8058 * Maximum Wait Time IE: the length shall be set to 2, i.e. the integer number value shall be encoded as a 16 bit unsigned integer.
8059 * DL Buffering Suggested Packet Count IE: the length shall be set to 1 or 2;
8060 * UE Usage Type IE: the length shall be set to 1, i.e. the integer number value shall be encoded as a 8 bit unsigned integer as specified in subclause 7.3.202 of 3GPP TS 29.272 [70].
8061 */
8063 /* Only handle up to 32 bits for now */
8078 /* If the UE Usage Type is not available in the old MME/SGSN/AMF, the length field of this IE shall be set to 0. */
8084 }
8087 /* Remaining Running Service Gap Timer */
8093 }
8098 }
8100 /* value not handled, yet*/
8103 }
8105 }
8106 /*
8107 * 8.119 Millisecond Time Stamp
8108 */
8110 static void
8111 dissect_gtpv2_ms_ts(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type, uint8_t instance _U_, session_args_t * args _U_)
8112 {
8114 /* Octets 5 to 10 represent a 48 bit unsigned integer in network order format and are encoded as
8115 * the number of milliseconds since 00:00:00 January 1, 1900 00:00 UTC, i.e. as the
8116 * rounded value of 1000 x the value of the 64-bit timestamp (Seconds + (Fraction / (1<<32)))
8117 * defined in section 6 of IETF RFC 5905
8118 */
8121 /*proto_item_append_text(item, "Origination time stamp");*/
8122 proto_tree_add_item(tree, hf_gtpv2_origination_ts, tvb, offset, length, ENC_TIME_MSEC_NTP | ENC_BIG_ENDIAN);
8127 }
8128 }
8130 /*
8131 * 8.120 Monitoring Event Information
8132 */
8133 static void
8134 dissect_gtpv2_mon_event_inf(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
8135 {
8140 /* Octet 4 higher four bits flags SIRE, NSCF, NSUI and NSUR */
8141 proto_tree_add_item_ret_boolean(tree, hf_gtpv2_mon_event_inf_srie, tvb, offset, 1, ENC_BIG_ENDIAN, &srie);
8146 /* Octet 4 lower four bits Instance */
8148 offset++;
8150 /* Octet 5 to 8 SCEF Reference ID */
8151 proto_tree_add_item(tree, hf_gtpv2_mon_event_inf_scef_reference_id, tvb, offset, 4, ENC_BIG_ENDIAN);
8153 /* Octet 9 Length of SCEF ID */
8154 proto_tree_add_item_ret_uint(tree, hf_gtpv2_mon_event_inf_scef_id_length, tvb, offset, 1, ENC_BIG_ENDIAN, &scef_id_len);
8155 offset++;
8156 /* Octet 10 to k SCEF ID */
8157 proto_tree_add_item(tree, hf_gtpv2_mon_event_inf_scef_id, tvb, offset, scef_id_len, ENC_UTF_8 | ENC_NA);
8159 /* Octet (k+1) to (k+2) Remaining Number of Reports */
8160 proto_tree_add_item(tree, hf_gtpv2_mon_event_inf_remaining_number_of_reports, tvb, offset, 2, ENC_BIG_ENDIAN );
8164 proto_tree_add_item(tree, hf_gtpv2_mon_event_inf_scef_reference_id_ext, tvb, offset, 8, ENC_BIG_ENDIAN);
8166 }
8169 proto_tree_add_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, length - offset);
8170 }
8171 }
8173 /*
8174 * 8.125 CIoT Optimizations Support Indication
8175 */
8176 static void
8177 dissect_gtpv2_ciot_opt_support_ind(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
8178 {
8186 NULL
8187 };
8190 proto_tree_add_bitmask_with_flags(tree, tvb, 0, hf_gtpv2_ciot_support_ind, ett_gtpv2_ciot_support_ind, ciot_flags, ENC_BIG_ENDIAN, BMT_NO_APPEND);
8194 proto_tree_add_expert_format(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, -1, "The rest of the IE not dissected yet");
8195 }
8196 }
8198 /*
8199 * 8.126 SCEF PDN Connection
8200 */
8201 static void
8202 dissect_gtpv2_scef_pdn_connection(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree _U_, proto_item *item, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args)
8203 {
8212 dissect_gtpv2_ie_common(new_tvb, pinfo, grouped_tree, offset, message_type, args, GTPV2_IE_SCEF_PDN_CONNECTION);
8214 }
8217 /*
8218 * 8.127 Header Compression Configuration
8219 */
8220 static void
8221 dissect_gtpv2_header_comp_comf(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
8222 {
8234 NULL
8235 };
8237 /* Octet 5 to 6 ROHC Profiles */
8240 ett_gtpv2_rohc_profile_flags, gtpv2_rohc_profile_flags_flags, ENC_BIG_ENDIAN, BMT_NO_FALSE | BMT_NO_INT);
8241 offset++;
8243 offset++;
8244 /* Octet 7 to 8 MAX_CID*/
8247 }
8249 /*
8250 * 8.129 Serving PLMN Rate Control
8251 */
8252 static void
8253 dissect_gtpv2_serv_plmn_rate_control(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
8254 {
8259 }
8261 /*
8262 * 8.130 Counter
8263 */
8264 static void
8265 dissect_gtpv2_counter(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
8266 {
8269 /* Timestamp value */
8270 /* Octets 5 to 8 shall be encoded in the same format as the first four octets of the 64-bit timestamp
8271 *format as defined in section 6 of IETF RFC 5905
8272 */
8274 proto_tree_add_item(tree, hf_gtpv2_timestamp_value, tvb, offset, 4, ENC_TIME_NTP | ENC_BIG_ENDIAN);
8277 }
8279 /*
8280 * 8.131 Mapped UE Usage Type
8281 */
8283 static void
8284 dissect_gtpv2_mapped_ue_usage_type(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, proto_item* item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t* args _U_)
8285 {
8291 proto_tree_add_expert_format(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, -1, "The rest of the IE not dissected yet");
8292 }
8293 }
8295 /*
8296 * 8.132 Secondary RAT Usage Data Report
8297 */
8302 };
8304 static void
8305 dissect_gtpv2_secondary_rat_usage_data_report(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
8306 {
8318 NULL
8319 };
8321 /*
8322 * The following bits within Octet 5 shall indicate:
8323 * Bit 8 to 3 - Spare, for future use and set to zero.
8324 * Bit 3 - SRUDN (Secondary RAT Usage Report from NG-RAN)
8325 * Bit 2 - IRSGW (Intended Receiver SGW)
8326 * Bit 1 - IRPGW (Intended Receiver PGW)
8327 */
8328 proto_tree_add_bitmask_with_flags_ret_uint64(tree, tvb, 0, hf_gtpv2_secondary_rat_usage_data_report, ett_gtpv2_secondary_rat_usage_data_report,
8329 secondary_rat_usage_data_report_flags, ENC_BIG_ENDIAN, BMT_NO_APPEND, >pv2_secondary_rat_usage_data_report_flags_val);
8332 /* Octet 6 RAT Type */
8333 proto_tree_add_item(tree, hf_gtpv2_secondary_rat_usage_data_report_rat_type, tvb, offset, 1, ENC_BIG_ENDIAN);
8336 /* Octet 7 EPS Bearer ID */
8337 /* Spare (all bits set to 0) B8 - B5 */
8339 /* EPS Bearer ID (EBI) B4 - B1 */
8343 /*
8344 * Octets 8 to 11 and 12 to 15 shall be encoded in the same format as the first four octets of the 64-bit timestamp
8345 * format as defined in section 6 of IETF RFC 5905
8346 */
8348 /* Octets 8 to 11 Start timestamp */
8349 proto_tree_add_item(tree, hf_gtpv2_secondary_rat_usage_data_report_start_timestamp, tvb, offset, 4, ENC_TIME_NTP | ENC_BIG_ENDIAN);
8352 /* Octets 12 to 15 End timestamp */
8353 proto_tree_add_item(tree, hf_gtpv2_secondary_rat_usage_data_report_end_timestamp, tvb, offset, 4, ENC_TIME_NTP | ENC_BIG_ENDIAN);
8356 /* 16 to 23 Usage Data DL */
8357 proto_tree_add_item(tree, hf_gtpv2_secondary_rat_usage_data_report_usage_data_dl, tvb, offset, 8, ENC_BIG_ENDIAN);
8360 /* 24 to 32 Usage Data UL */
8361 proto_tree_add_item(tree, hf_gtpv2_secondary_rat_usage_data_report_usage_data_ul, tvb, offset, 8, ENC_BIG_ENDIAN);
8365 /* Octet k Length of Secondary RAT Data Usage Report Transfer */
8366 proto_tree_add_item_ret_uint(tree, hf_gtpv2_secondary_rat_usage_data_report_srudn_length, tvb, offset, 1, ENC_BIG_ENDIAN, &srudn_len);
8367 offset++;
8368 /* Octet (k+1) to a SRUDN */
8369 sub_tree = proto_tree_add_subtree(tree, tvb, offset, srudn_len, ett_gtpv2_son_con, NULL, "SecondaryRATDataUsageReportTransfer");
8371 asn1_ctx_t asn1_ctx;
8373 dissect_ngap_SecondaryRATDataUsageReportTransfer(new_tvb, 0, &asn1_ctx, sub_tree, hf_gtpv2_secondary_rat_usage_data_report_srudn_value);
8375 }
8378 proto_tree_add_expert_format(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, -1, "The rest of the IE not dissected yet");
8379 }
8380 }
8384 /*
8385 * 8.133 UP Function Selection Indication Flags
8386 */
8388 static void
8389 dissect_gtpv2_up_func_slec_indic_flg(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t * args _U_)
8390 {
8396 }
8398 /* 8.134 Maximum Packet Loss Rate */
8399 static void
8400 dissect_gtpv2_max_pkt_loss_rte(tvbuff_t* tvb, packet_info* pinfo _U_, proto_tree* tree, proto_item* item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t* args _U_)
8401 {
8409 NULL
8410 };
8411 /*5 Spare DL UL*/
8414 offset++;
8417 /*m to m+1 Maximum Packet Loss Rate UL*/
8420 }
8422 /*o to o+1 Maximum Packet Loss Rate DL*/
8424 }
8427 }
8429 /* 8.135 APN Rate Control Status */
8430 static void
8431 dissect_gtpv2_apn_rte_cntrl_status(tvbuff_t* tvb, packet_info* pinfo _U_, proto_tree* tree, proto_item* item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t* args _U_)
8432 {
8435 /*5 to 8 Number of Uplink packets allowed*/
8438 /*9 to 12 Number of additional exception reports*/
8441 /*13 to 16 Number of Downlink packets allowed*/
8444 /*17 to 24 APN Rate Control Status validity Time*/
8445 proto_tree_add_item(tree, hf_apn_rte_cntrl_status_val_time, tvb, offset, 8, ENC_TIME_NTP | ENC_BIG_ENDIAN);
8447 }
8448 /* 3GPP TS 32.422 V15.1.0 (2018-06) 5.5 List of interfaces (O)*/
8459 NULL
8460 };
8465 NULL
8466 };
8472 NULL
8473 };
8484 NULL
8485 };
8492 NULL
8493 };
8499 NULL
8500 };
8507 NULL
8508 };
8512 NULL
8513 };
8522 NULL
8523 };
8531 NULL
8532 };
8543 NULL
8544 };
8550 NULL
8551 };
8562 NULL
8563 };
8570 NULL
8571 };
8582 NULL
8583 };
8588 NULL
8589 };
8595 NULL
8596 };
8604 NULL
8605 };
8609 NULL
8610 };
8618 NULL
8619 };
8621 /* 8.136 Extended Trace Information */
8622 static void
8623 dissect_gtpv2_ext_trs_inf(tvbuff_t* tvb, packet_info* pinfo _U_, proto_tree* tree, proto_item* item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t* args _U_)
8624 {
8633 /* Append Trace ID to main tree */
8641 /* Triggering Events, put all into a new tree called triggering_tree */
8642 trigg_tree = proto_tree_add_subtree(tree, tvb, offset, -1, ett_gtpv2_tra_info_trigg, &ti, "Triggering Events");
8643 /* Octet 11 Length of Triggering Events */
8644 proto_tree_add_item_ret_uint(trigg_tree, hf_gtpv2_trig_event_len, tvb, offset, 1, ENC_BIG_ENDIAN, &ev_len);
8645 offset++;
8650 ne_tree = proto_tree_add_subtree(tree, tvb, offset, -1, ett_gtpv2_tra_info_trigg, &ti, "List of NE Types");
8651 /* m + 1*/
8652 /* Length of List of NE Types */
8653 proto_tree_add_item_ret_uint(ne_tree, hf_gtpv2_ne_list_len, tvb, offset, 1, ENC_BIG_ENDIAN, &ev_len);
8654 offset++;
8656 proto_tree_add_bitmask_list(ne_tree, tvb, offset, 1, trace_ne_types_flags_oct1, ENC_BIG_ENDIAN);
8657 }
8659 proto_tree_add_bitmask_list(ne_tree, tvb, offset+1, 1, trace_ne_types_flags_oct2, ENC_BIG_ENDIAN);
8660 }
8665 /* p+1 Session Trace Depth */
8667 offset++;
8670 if_tree = proto_tree_add_subtree(tree, tvb, offset, -1, ett_gtpv2_tra_info_trigg, &ti, "List of Interfaces");
8671 /* p+2 Length of List of Interfaces */
8672 proto_tree_add_item_ret_uint(if_tree, hf_gtpv2_list_of_if_len, tvb, offset, 1, ENC_BIG_ENDIAN, &ev_len);
8673 offset++;
8678 proto_tree_add_bitmask_list(sub_tree, tvb, offset, 1, ext_tra_info_list_of_if_flags_oct1, ENC_BIG_ENDIAN);
8679 proto_tree_add_bitmask_list(sub_tree, tvb, offset + 1, 1, ext_tra_info_list_of_if_flags_oct2, ENC_BIG_ENDIAN);
8680 }
8684 proto_tree_add_bitmask_list(sub_tree, tvb, offset + 2, 1, ext_tra_info_list_of_if_flags_oct3, ENC_BIG_ENDIAN);
8685 }
8690 proto_tree_add_bitmask_list(sub_tree, tvb, offset + 3, 1, ext_tra_info_list_of_if_flags_oct4, ENC_BIG_ENDIAN);
8691 proto_tree_add_bitmask_list(sub_tree, tvb, offset + 4, 1, ext_tra_info_list_of_if_flags_oct5, ENC_BIG_ENDIAN);
8692 }
8697 proto_tree_add_bitmask_list(sub_tree, tvb, offset + 5, 1, ext_tra_info_list_of_if_flags_oct6, ENC_BIG_ENDIAN);
8698 }
8702 proto_tree_add_bitmask_list(sub_tree, tvb, offset + 6, 1, ext_tra_info_list_of_if_flags_oct7, ENC_BIG_ENDIAN);
8703 }
8707 proto_tree_add_bitmask_list(sub_tree, tvb, offset + 7, 1, ext_tra_info_list_of_if_flags_oct8, ENC_BIG_ENDIAN);
8708 }
8712 proto_tree_add_bitmask_list(sub_tree, tvb, offset + 8, 1, ext_tra_info_list_of_if_flags_oct9, ENC_BIG_ENDIAN);
8713 }
8717 proto_tree_add_bitmask_list(sub_tree, tvb, offset + 9, 1, ext_tra_info_list_of_if_flags_oct10, ENC_BIG_ENDIAN);
8718 }
8722 proto_tree_add_bitmask_list(sub_tree, tvb, offset + 10, 1, ext_tra_info_list_of_if_flags_oct11, ENC_BIG_ENDIAN);
8723 }
8727 proto_tree_add_bitmask_list(sub_tree, tvb, offset + 11, 1, ext_tra_info_list_of_if_flags_oct12, ENC_BIG_ENDIAN);
8728 }
8732 proto_tree_add_bitmask_list(sub_tree, tvb, offset + 11, 1, ext_tra_info_list_of_if_flags_oct13, ENC_BIG_ENDIAN);
8733 }
8737 proto_tree_add_bitmask_list(sub_tree, tvb, offset + 11, 1, ext_tra_info_list_of_if_flags_oct14, ENC_BIG_ENDIAN);
8738 }
8742 proto_tree_add_bitmask_list(sub_tree, tvb, offset + 14, 1, ext_tra_info_list_of_if_flags_oct15, ENC_BIG_ENDIAN);
8743 proto_tree_add_bitmask_list(sub_tree, tvb, offset + 15, 1, ext_tra_info_list_of_if_flags_oct16, ENC_BIG_ENDIAN);
8744 }
8748 proto_tree_add_bitmask_list(sub_tree, tvb, offset + 16, 1, ext_tra_info_list_of_if_flags_oct17, ENC_BIG_ENDIAN);
8749 }
8753 proto_tree_add_bitmask_list(sub_tree, tvb, offset + 17, 1, ext_tra_info_list_of_if_flags_oct18, ENC_BIG_ENDIAN);
8754 }
8758 proto_tree_add_bitmask_list(sub_tree, tvb, offset + 18, 1, ext_tra_info_list_of_if_flags_oct19, ENC_BIG_ENDIAN);
8759 }
8763 proto_tree_add_bitmask_list(sub_tree, tvb, offset + 19, 1, ext_tra_info_list_of_if_flags_oct20, ENC_BIG_ENDIAN);
8764 }
8769 /* q+1 Length of IP Address of Trace Collection Entity */
8770 proto_tree_add_item_ret_uint(tree, hf_gtpv2_trs_coll_ip_addr_len, tvb, offset, 1, ENC_BIG_ENDIAN, &ev_len);
8771 offset++;
8772 /*(q+2) to r IP Address of Trace Collection Entity */
8775 }
8779 }
8780 }
8782 /* 8.137 Monitoring Event Extension Information */
8783 static void
8784 dissect_gtpv2_ie_mon_event_ext_inf(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, proto_item* item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t* args _U_)
8785 {
8791 /* Octet 5 Bit 8-3 Spare Bit 2 SRIE Bit 1 LRTP */
8793 proto_tree_add_item_ret_boolean(tree, hf_gtpv2_mon_event_ext_inf_srie, tvb, offset, 1, ENC_BIG_ENDIAN, &srie);
8794 proto_tree_add_item_ret_boolean(tree, hf_gtpv2_mon_event_ext_inf_lrtp, tvb, offset, 1, ENC_BIG_ENDIAN, &lrtp);
8795 offset++;
8796 /* Octet 6 to 9 SCEF Reference ID */
8797 proto_tree_add_item(tree, hf_gtpv2_mon_event_ext_inf_scef_reference_id, tvb, offset, 4, ENC_BIG_ENDIAN);
8799 /* Octet 10 Length of SCEF ID */
8800 proto_tree_add_item_ret_uint(tree, hf_gtpv2_mon_event_ext_inf_scef_id_length, tvb, offset, 1, ENC_BIG_ENDIAN, &scef_id_len);
8801 offset++;
8802 /* Octet 11 to k SCEF ID */
8803 proto_tree_add_item(tree, hf_gtpv2_mon_event_ext_inf_scef_id, tvb, offset, scef_id_len, ENC_UTF_8 | ENC_NA);
8806 proto_tree_add_item(tree, hf_gtpv2_mon_event_ext_inf_remain_min_period_loc_report_type, tvb, offset, 4, ENC_BIG_ENDIAN);
8808 }
8811 proto_tree_add_item(tree, hf_gtpv2_mon_event_ext_inf_scef_reference_id_ext, tvb, offset, 8, ENC_BIG_ENDIAN);
8813 }
8816 proto_tree_add_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, length- offset);
8817 }
8818 }
8820 /* 207 Additional RRM Policy Index Fixed Length / 8.138 */
8821 static void
8822 dissect_gtpv2_ie_additional_rrm_policy_index(tvbuff_t* tvb, packet_info* pinfo _U_, proto_tree* tree, proto_item* item, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t* args _U_)
8823 {
8826 /*5 to 8 Additional RRM Policy Index, The ARPI is encoded as Unsigned32 binary integer values.*/
8827 proto_tree_add_item_ret_uint(tree, hf_gtpv2_additional_rrm_policy_index, tvb, 0, 4, ENC_BIG_ENDIAN, &rrm_policy_index);
8829 }
8831 /* 208 V2X Context Extendable / 8.139 */
8832 static void
8833 dissect_gtpv2_ie_v2x_context(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, proto_item* item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t* args _U_)
8834 {
8836 }
8838 /* 209 PC5 QoS Parameters Extendable / 8.140 */
8839 static void
8840 dissect_gtpv2_ie_pc5_qos_parameters(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, proto_item* item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t* args _U_)
8841 {
8843 }
8845 /* 210 Services Authorized Extendable / 8.141 */
8846 static void
8847 dissect_gtpv2_ie_services_authorized(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, proto_item* item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t* args _U_)
8848 {
8850 }
8852 /* 211 Bit Rate Extendable / 8.142 */
8853 static void
8854 dissect_gtpv2_ie_bit_rate(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, proto_item* item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t* args _U_)
8855 {
8857 }
8859 /* 212 PC5 QoS Flow Extendable / 8.143 */
8860 static void
8861 dissect_gtpv2_ie_pc5_qos_flow(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, proto_item* item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t* args _U_)
8862 {
8864 }
8866 /* 213 SGi PtP Tunnel Address Extendable / 8.144 */
8867 static void
8868 dissect_gtpv2_ie_sgi_ptp_tunnel_address(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, proto_item* item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t* args _U_)
8869 {
8871 }
8873 /* 214 PGW Change Info Extendable / 8.145 */
8874 static void
8875 dissect_gtpv2_ie_pgw_change_info(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree _U_, proto_item* item, uint16_t length, uint8_t message_type, uint8_t instance _U_, session_args_t* args)
8876 {
8885 dissect_gtpv2_ie_common(new_tvb, pinfo, grouped_tree, offset, message_type, args, GTPV2_IE_PGW_CHANGE_INFO);
8886 }
8888 /* 215 PGW FQDN Extendable / 8.146 */
8889 static void
8890 dissect_gtpv2_ie_pgw_fqdn(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, proto_item* item, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t* args _U_)
8891 {
8896 proto_tree_add_expert(tree, pinfo, &ei_gtpv2_ie_data_not_dissected, tvb, offset, length- offset);
8897 }
8898 }
8900 /* 216 Group Id / 8.147 */
8901 static void
8902 dissect_gtpv2_ie_group_id(tvbuff_t* tvb, packet_info* pinfo _U_, proto_tree* tree, proto_item* item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t* args _U_)
8903 {
8905 }
8907 /* 217 PSCell Id / 8.148 */
8908 static void
8909 dissect_gtpv2_ie_pscell_id(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, proto_item* item _U_, uint16_t length _U_, uint8_t message_type _U_, uint8_t instance _U_, session_args_t* args _U_)
8910 {
8918 }
8920 /* 218 UP Security Policy / 8.149 */
8927 };
8929 static void
8930 dissect_gtpv2_ie_up_security_policy(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, proto_item* item _U_, uint16_t length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t* args _U_)
8931 {
8933 proto_tree_add_item(tree, hf_gtpv2_ie_up_security_policy_up_ip_policy, tvb, 0, 1, ENC_BIG_ENDIAN);
8936 }
8937 }
8939 /* 219 Alternative IMSI / 8.150 */
8940 static void
8941 dissect_gtpv2_ie_alternative_imsi(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, proto_item* item, uint16_t length, uint8_t message_type, uint8_t instance, session_args_t* args)
8942 {
8943 /*
8944 * TS 29.274 V18.4.0 says:
8945 * Alternative IMSI is in the form of an IMSI as defined in 3GPP TS 23.003.
8946 */
8948 }
8950 /* 220 NF Instance ID / 8.151 */
8951 static void
8952 dissect_gtpv2_ie_nf_instance_id(tvbuff_t* tvb, packet_info* pinfo _U_, proto_tree* tree, proto_item* item _U_, uint16_t _U_ length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t* args _U_)
8953 {
8954 /*
8955 * String uniquely identifying a NF instance. The format of the NF Instance ID shall be a
8956 * Universally Unique Identifier (UUID) version 4, as described in IETF RFC 4122 [15]. The
8957 * hexadecimal letters should be formatted as lower-case characters by the sender, and they
8958 * shall be handled as case-insensitive by the receiver.
8959 *
8960 * Example: "4ace9d34-2c69-4f99-92d5-a73a3fe8e23b"
8961 */
8963 }
8965 /* 221 Timer in Seconds / 8.152 */
8966 static void
8967 dissect_gtpv2_timer_in_seconds(tvbuff_t* tvb, packet_info* pinfo _U_, proto_tree* tree, proto_item* item _U_, uint16_t _U_ length, uint8_t message_type _U_, uint8_t instance _U_, session_args_t* args _U_)
8968 {
8969 proto_tree_add_item(tree, hf_gtpv2_nf_timer_in_seconds_timer_value, tvb, 0, 3, ENC_BIG_ENDIAN);
8972 }
8973 }
8975 /* Table 8.1-1: Information Element types for GTPv2 */
8979 void (*decode) (tvbuff_t *, packet_info *, proto_tree *, proto_item *, uint16_t, uint8_t, uint8_t, session_args_t *);
8986 /* 4-50 Reserved for S101 interface Extendable / See 3GPP TS 29.276 [14] */
8987 /*Start SRVCC Messages 3GPP TS 29.280 */
8989 {GTPV2_IE_SRC_TGT_TRANS_CON, dissect_gtpv2_src_tgt_trans_con}, /* 52 Source to Target Transparent Container */
8990 {GTPV2_IE_TGT_SRC_TRANS_CON , dissect_gtpv2_tgt_src_trans_con}, /* 53 Target to Source Transparent Container */
8991 {GTPV2_IE_MM_CON_EUTRAN_SRVCC, dissect_gtpv2_mm_con_eutran_srvcc}, /* 54 MM Context for E-UTRAN SRVCC */
8992 {GTPV2_IE_MM_CON_UTRAN_SRVCC, dissect_gtpv2_mm_con_utran_srvcc}, /* 55 MM Context for UTRAN SRVCC */
8995 {GTPV2_IE_TGT_GLOGAL_CELL_ID, dissect_gtpv2_tgt_global_cell_id}, /* 58 Target Global Cell ID */
8999 {GTPV2_IE_MM_CTX_FOR_CS_TO_PS_SRVCC, dissect_gtpv2_mm_ctx_for_cs_to_ps_srvcc }, /* 62 Service Area Identifier */
9000 /* 61-70 Reserved for Sv interface Extendable / See 3GPP TS 29.280 [15] */
9010 {GTPV2_BEARER_QOS, dissect_gtpv2_bearer_qos}, /* 80 Bearer Level Quality of Service (Bearer QoS) 8.15 */
9017 {GTPV2_IE_F_TEID, dissect_gtpv2_f_teid}, /* 87, Fully Qualified Tunnel Endpoint Identifier (F-TEID) 8.23 */
9020 {GTPV2_IE_S103PDF, dissect_gtpv2_s103pdf}, /* 90, S103 PDN Data Forwarding Info (S103PDF) 8.25 */
9028 /* 98, Void 8.33 */
9032 {GTPV2_IE_UE_NET_CAPABILITY, dissect_gtpv2_ue_net_capability}, /* 102, UE network capability 8.37 */
9033 {GTPV2_IE_MM_CONTEXT_GSM_T, dissect_gtpv2_mm_context_gsm_t}, /* 103, MM Context 8.38 GSM Key and Triplets */
9046 {GTPV2_IE_COMPLETE_REQUEST_MSG, dissect_complete_request_msg}, /* 116, Complete Request message 8.46 */
9048 {GTPV2_IE_F_CONTAINER, dissect_gtpv2_F_container}, /* 118, Fully Qualified Container (F-Container) */
9052 /* 122, Void 8.52 */
9055 {GTPV2_IE_S_RNC_PDCP_CTX_INFO, dissect_gtpv2_s_rnc_pdcp_ctx_info}, /* 125, Source RNC PDCP context info 8.55 */
9060 {GTPV2_IE_BEARER_CONTROL_MODE, dissect_gtpv2_bearer_control_mode}, /* 130, Bearer Control Mode */
9062 {GTPV2_IE_FQ_CSID, dissect_gtpv2_fq_csid}, /* 132, Fully Qualified PDN Connection Set Identifier (FQ-CSID) 8.62 */
9068 {GTPV2_IE_MBMS_SESSION_DURATION, dissect_gtpv2_mbms_session_duration}, /* 138, 8.69 MBMS Session Duration */
9069 {GTPV2_IE_MBMS_SERVICE_AREA, dissect_gtpv2_mbms_service_area}, /* 139, 8.70 MBMS Service Area */
9070 {GTPV2_IE_MBMS_SESSION_ID, dissect_gtpv2_mbms_session_id}, /* 140, 8.71 MBMS Session Identifier */
9072 {GTPV2_IE_MBMS_IP_MC_DIST, dissect_gtpv2_mbms_ip_mc_dist}, /* 142, 8.73 MBMS IP Multicast Distribution */
9073 {GTPV2_IE_MBMS_DIST_ACK, dissect_gtpv2_mbms_dist_ack}, /* 143, 8.74 MBMS Distribution Acknowledge */
9076 {GTPV2_IE_CSG_INFO_REP_ACTION, dissect_gtpv2_csg_info_rep_action}, /* 146, 8.76 CSG Information Reporting Action */
9079 {GTPV2_IE_SERVICE_INDICATOR, dissect_gtpv2_service_indicator}, /* 149, 8.80 Service indicator */
9083 {GTPV2_IE_MBMS_TIME_TO_DATA_XFER, dissect_gtpv2_mbms_time_to_data_xfer}, /* 153, 8.84 MBMS Time to Data Transfer */
9087 {GTPV2_IE_SIG_PRIO_IND, dissect_gtpv2_sig_prio_ind}, /* 157, 8.88 Signalling Priority Indication */
9089 {GTPV2_IE_ADD_MM_CONT_FOR_SRVCC, dissect_gtpv2_add_mm_cont_for_srvcc}, /* 159, 8.90 Additional MM context for SRVCC */
9090 {GTPV2_IE_ADD_FLAGS_FOR_SRVCC, dissect_gtpv2_add_flags_for_srvcc}, /* 160, 8.91 Additional flags for SRVCC */
9093 {GTPV2_IE_APCO, dissect_gtpv2_apco}, /* 163, 8.94 Additional Protocol Configuration Options (APCO) */
9094 {GTPV2_IE_ABS_MBMS_DATA_TF_TIME, dissect_gtpv2_abs_mbms_data_tf_time}, /* 164, 8.95 Absolute Time of MBMS Data Transfer */
9095 {GTPV2_IE_HENB_INFO_REPORT, dissect_gtpv2_henb_info_report}, /* 165, 8.96 H(e)NB Information Reporting */
9097 {GTPV2_IE_CHANGE_TO_REPORT_FLAGS, dissect_gtpv2_change_report_flags}, /* 167, 8.98 Change to Report Flags */
9098 {GTPV2_IE_ACTION_INDICATION, dissect_gtpv2_action_indication}, /* 168, 8.99 Action Indication */
9103 {GTPV2_IE_CN_OP_SEL_ENT, dissect_gtpv2_cn_operator_selection_entity}, /* 173, 8.104 CN Operator Selection Entity */
9104 {GTPV2_IE_TRUST_WLAN_MODE_IND, dissect_gtpv2_trust_wlan_mode_ind}, /* 174, 8.105 Trusted WLAN Mode Indication */
9107 {GTPV2_IE_PRES_REP_AREA_ACT, dissect_gtpv2_pres_rep_area_action}, /* 177, 8.108 Presence Reporting Area Action */
9108 {GTPV2_IE_PRES_REP_AREA_INF, dissect_gtpv2_pres_rep_area_information}, /* 178, 8.109 Presence Reporting Area Information */
9109 {GTPV2_IE_TWAN_ID_TS, dissect_gtpv2_twan_identifier_timestamp}, /* 179, 8.110 TWAN Identifier Timestamp */
9110 {GTPV2_IE_OVERLOAD_CONTROL_INF, dissect_gtpv2_overload_control_inf}, /* 180, 8.111 Overload Control Information */
9111 {GTPV2_IE_LOAD_CONTROL_INF, dissect_gtpv2_load_control_inf}, /* 181, 8.112 Load Control Information */
9114 {GTPV2_IE_APN_AND_REL_CAP, dissect_gtpv2_apn_and_relative_capacity}, /* 184, 8.115 APN and Relative Capacity */
9115 {GTPV2_IE_WLAN_OFFLOADABILITY_IND,dissect_gtpv2_unknown }, /* 185, 8.116 WLAN Offloadability Indication */
9117 {GTPV2_IE_PAGING_AND_SERVICE_INF, dissect_gtpv2_paging_and_service_inf}, /* 186, 8.117 Paging and Service Information */
9120 {GTPV2_IE_MON_EVENT_INF, dissect_gtpv2_mon_event_inf}, /* 189, 8.120 Monitoring Event Information */
9121 /* 190, 8.121 ECGI List */
9122 /* 191, 8.122 Remote UE Context */
9123 /* 192, 8.123 Remote User ID */
9124 /* 193, 8.124 Remote UE IP Information */
9125 {GTPV2_IE_CIOT_OPT_SUPPORT_IND, dissect_gtpv2_ciot_opt_support_ind}, /* 194, 8.125 CIoT Optimizations Support Indication */
9126 {GTPV2_IE_SCEF_PDN_CONNECTION , dissect_gtpv2_scef_pdn_connection }, /* 195, 8.126 SCEF PDN Connection */
9127 {GTPV2_IE_HEADER_COMP_CONF, dissect_gtpv2_header_comp_comf}, /* 196, 8.127 Header Compression Configuration */
9128 {GTPV2_IE_EXTENDED_PCO, dissect_gtpv2_pco}, /* 197, 8.128 Extended Protocol Configuration Options (ePCO) */
9129 {GTPV2_IE_SERV_PLMN_RATE_CONTROL, dissect_gtpv2_serv_plmn_rate_control}, /* 198, 8.129 Serving PLMN Rate Control */
9131 {GTPV2_IE_MAPPED_UE_USAGE_TYPE, dissect_gtpv2_mapped_ue_usage_type }, /* 199, 8.131 Mapped UE Usage Type */
9132 {GTPV2_IE_SECONDARY_RAT_USAGE_DATA_REPORT, dissect_gtpv2_secondary_rat_usage_data_report}, /* 201, 8.132 Secondary RAT Usage Data Report */
9133 {GTPV2_IE_UP_FUNC_SEL_INDI_FLG, dissect_gtpv2_up_func_slec_indic_flg }, /* 202, 8.133 UP Function Selection Indication Flags */
9134 {GTPV2_IE_MAX_PKT_LOSS_RTE, dissect_gtpv2_max_pkt_loss_rte }, /* 203, 8.134 Maximum Packet Loss Rate */
9135 {GTPV2_IE_APN_RTE_CNTRL_STATUS, dissect_gtpv2_apn_rte_cntrl_status }, /* 204, 8.135 APN Rate Control Status */
9136 {GTPV2_IE_EXT_TRS_INF, dissect_gtpv2_ext_trs_inf }, /* 205, 8.136 Extended Trace Information */
9137 {GTPV2_IE_MON_EVENT_EXT_INF, dissect_gtpv2_ie_mon_event_ext_inf }, /* 206, 8.137 Monitoring Event Extension Information */
9138 {GTPV2_IE_ADDITIONAL_RRM_POLICY_INDEX, dissect_gtpv2_ie_additional_rrm_policy_index }, /* 207 Additional RRM Policy Index Fixed Length / 8.138 */
9139 {GTPV2_IE_V2X_CONTEXT, dissect_gtpv2_ie_v2x_context }, /* 208 V2X Context Extendable / 8.139 */
9140 {GTPV2_IE_PC5_QOS_PARAMETERS, dissect_gtpv2_ie_pc5_qos_parameters }, /* 209 PC5 QoS Parameters Extendable / 8.140 */
9141 {GTPV2_IE_SERVICES_AUTHORIZED, dissect_gtpv2_ie_services_authorized }, /* 210 Services Authorized Extendable / 8.141 */
9143 {GTPV2_IE_PC5_QOS_FLOW, dissect_gtpv2_ie_pc5_qos_flow }, /* 212 PC5 QoS Flow Extendable / 8.143 */
9144 {GTPV2_IE_SGI_PTP_TUNNEL_ADDRESS, dissect_gtpv2_ie_sgi_ptp_tunnel_address }, /* 213 SGi PtP Tunnel Address Extendable / 8.144 */
9145 {GTPV2_IE_PGW_CHANGE_INFO, dissect_gtpv2_ie_pgw_change_info }, /* 214 PGW Change Info Extendable / 8.145 */
9149 {GTPV2_IE_UP_SECURITY_POLICY, dissect_gtpv2_ie_up_security_policy }, /* 218 UP Security Policy Extendable / 8.149 */
9150 {GTPV2_IE_ALT_IMSI, dissect_gtpv2_ie_alternative_imsi }, /* 219 Alternative IMSI Variable Length / 8.150 */
9155 };
9158 gtpv2_match_response(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, int seq_nr, unsigned msgtype, gtpv2_conv_info_t *gtpv2_info, uint8_t last_cause)
9159 {
9215 }
9222 /*no match, let's try to make one*/
9247 }
9248 /* if we can't reuse the old one, grab a new chunk */
9251 }
9287 }
9288 }
9292 }
9293 }
9295 /* we have found a match */
9303 nstime_t ns;
9311 /* GTP session */
9312 /* If it's not already in the list */
9318 }
9319 }
9322 /* If the cause is not accepted then we have to remove all the session information about its corresponding request */
9324 }
9325 }
9326 }
9327 }
9329 }
9331 static void
9332 track_gtpv2_session(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, gtpv2_hdr_t * gtpv2_hdr, wmem_list_t *teid_list, wmem_list_t *ip_list, uint32_t last_teid _U_, address last_ip _U_)
9333 {
9337 /* GTP session */
9343 }
9344 }
9347 /* If the message does not have any session ID */
9350 /* If the message is not a CSESRES, CSESREQ, UBEAREQ, UBEARES, CBEAREQ, CBEARES, MBEAREQ or MBEARES then we remove its information from teid and ip lists */
9351 if ((gtpv2_hdr->message != GTPV2_CREATE_SESSION_RESPONSE && gtpv2_hdr->message != GTPV2_CREATE_SESSION_REQUEST && gtpv2_hdr->message != GTPV2_UPDATE_BEARER_RESPONSE
9352 && gtpv2_hdr->message != GTPV2_UPDATE_BEARER_REQUEST && gtpv2_hdr->message != GTPV2_CREATE_BEARER_REQUEST && gtpv2_hdr->message != GTPV2_CREATE_BEARER_RESPONSE
9353 && gtpv2_hdr->message != GTPV2_MODIFY_BEARER_REQUEST && gtpv2_hdr->message != GTPV2_MODIFY_BEARER_RESPONSE)) {
9354 /* If the lists are not empty*/
9357 }
9358 }
9361 /* If CPDPCREQ and not already in the list then we create a new session*/
9363 }
9365 /* We have to check if its teid == teid_cp and ip.dst == gsn_ipv4 from the lists, if that is the case then we have to assign
9366 the corresponding session ID */
9368 /* Then we have to set its session ID */
9371 /* We add the corresponding session to the list so that when a response came we can associate its session ID*/
9373 }
9374 }
9376 /* If MBEAREQ and not already in the list then we create a new session*/
9378 }
9379 }
9380 }
9381 }
9382 }
9384 void
9385 dissect_gtpv2_ie_common(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, int offset, uint8_t message_type, session_args_t * args, uint8_t parent_ie)
9386 {
9394 /*
9395 * Octets 8 7 6 5 4 3 2 1
9396 * 1 Type
9397 * 2-3 Length = n
9398 * 4 CR Spare Instance
9399 * 5-(n+4) IE specific data
9400 */
9403 /* Get the type and length */
9406 proto_tree_add_expert_format(tree, pinfo, &ei_gtpv2_ie_len_invalid, tvb, offset, remaining_length,
9409 }
9414 proto_tree_add_expert_format(tree, pinfo, &ei_gtpv2_ie_len_invalid, tvb, offset+4, remaining_length,
9416 /* Octet 1 */
9420 /*Octet 2 - 3 */
9423 }
9424 ie_tree = proto_tree_add_subtree_format(tree, tvb, offset, 4 + length, ett_gtpv2_ies[type], &ti, "%s: ",
9427 /* Octet 1 */
9431 /*Octet 2 - 3 */
9435 /* ch8.120 breaks the format described in ch8.2.1 */
9439 /* CR Spare Instance Octet 4*/
9445 /* Add Info element on IE types with multiple instances in same group */
9447 /* XXX - This has 250+ entries and should really be a different
9448 * data structure, perhaps lazily creating a table. */
9454 {
9455 proto_item_append_text(ie_tree, " %s: ", gtpv2_information_element_instance_vals[info_elem].info_element);
9457 }
9458 }
9459 }
9460 offset++;
9461 }
9463 /* TODO: call IE dissector here */
9465 /* Treat IE type zero special as type zero is used to end the loop in the else branch */
9469 /* Loop over the IE dissector list to se if we find an entry;
9470 the last entry will have ie_type=0 breaking the loop */
9474 }
9475 /* Just give the IE dissector the IE */
9478 }
9480 /* ch8.120 breaks the format described in ch8.2.1 */
9482 offset++;
9483 }
9486 }
9487 }
9489 static int
9490 // NOLINTNEXTLINE(misc-no-recursion)
9492 {
9512 NULL
9513 };
9517 /* Setting the TEID to -1 to say that the TEID is not valid for this packet */
9520 /* Currently we get called from the GTP dissector no need to check the version */
9524 /* message type is in octet 2 */
9526 col_set_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(message_type, >pv2_message_type_vals_ext, "Unknown"));
9536 /* We create the auxiliary lists */
9539 }
9541 /*
9542 * Do we have a conversation for this connection?
9543 */
9546 /*
9547 * Do we already know this conversation?
9548 */
9551 /* No. Attach that information to the conversation, and add
9552 * it to the list of information structures.
9553 */
9555 /*Request/response matching tables*/
9557 gtpv2_info->unmatched = wmem_map_new(wmem_file_scope(), gtpv2_sn_hash, gtpv2_sn_equal_unmatched);
9560 }
9562 /* Control Plane GTP uses a variable length header. Control Plane GTP header
9563 * length shall be a multiple of 4 octets.
9564 * Figure 5.1-1 illustrates the format of the GTPv2-C Header.
9565 * Bits 8 7 6 5 4 3 2 1
9566 * Octets 1 Version P T Spare Spare Spare
9567 * 2 Message Type
9568 * 3 Message Length (1st Octet)
9569 * 4 Message Length (2nd Octet)
9570 * m-k(m+3) If T flag is set to 1, then TEID shall be placed into octets 5-8.
9571 * Otherwise, TEID field is not present at all.
9572 * n-(n+2) Sequence Number
9573 * (n+3) Spare
9574 * Figure 5.1-1: General format of GTPv2 Header for Control Plane
9575 */
9577 /* 5.4 EPC specific GTP-C header
9578 * Bits 8 7 6 5 4 3 2 1
9579 * Octets 1 Version P T=1 MP Spare Spare
9580 * 2 Message Type
9581 * 3 Message Length (1st Octet)
9582 * 4 Message Length (2nd Octet)
9583 * 5 Tunnel Endpoint Identifier (1st Octet)
9584 * 6 Tunnel Endpoint Identifier (2nd Octet)
9585 * 7 Tunnel Endpoint Identifier (3rd Octet)
9586 * 8 Tunnel Endpoint Identifier (4th Octet)
9587 * 9 Sequence Number (1st Octet)
9588 * 10 Sequence Number (2nd Octet)
9589 * 11 Sequence Number (3rd Octet)
9590 * 12 Message Priority Spare
9591 */
9593 /* Octet 1 */
9604 /* Octet 2 */
9608 /* Octet 3 - 4 */
9614 /* Tunnel Endpoint Identifier 4 octets */
9618 }
9619 /* Sequence Number 3 octets */
9620 proto_tree_add_item_ret_uint(gtpv2_tree, hf_gtpv2_seq, tvb, offset, 3, ENC_BIG_ENDIAN, &seq_no);
9623 /* Spare 1 octet or if the "MP" flag is set to "1",
9624 * then bits 8 to 5 of octet 12 shall indicate the message priority.
9625 */
9627 /* Bits 8 to 5 of octet 12 shall be encoded as the binary value of the Message Priority
9628 * and it may take any value between 0 and 15, where 0 corresponds to the highest priority
9629 * and 15 the lowest priority.
9630 */
9634 }
9642 }
9643 /*Use sequence number to track Req/Resp pairs*/
9646 /* We insert the lists inside the table*/
9649 }
9650 gcrp = gtpv2_match_response(tvb, pinfo, gtpv2_tree, seq_no, message_type, gtpv2_info, cause_aux);
9653 }
9655 track_gtpv2_session(tvb, pinfo, gtpv2_tree, gtpv2_hdr, args->teid_list, args->ip_list, args->last_teid, args->last_ip);
9656 }
9658 /* Bit 5 represents a "P" flag. If the "P" flag is set to "0",
9659 * no piggybacked message shall be present. If the "P" flag is set to "1",
9660 * then another GTPv2-C message with its own header and body shall be present
9661 * at the end of the current message.
9662 */
9665 /* Octets 3 to 4 represent the Length field. This field shall indicate the
9666 * length of the message in octets excluding the
9667 * mandatory part of the GTP-C header (the first 4 octets).
9668 */
9675 }
9678 }
9681 {
9689 },
9694 },
9699 },
9704 },
9709 },
9710 //{ &hf_gtpv2_spare_b7_b1,
9711 // {"Spare bit(s)", "gtpv2.spare_b7_b1",
9712 // FT_UINT8, BASE_DEC, NULL, 0xfe,
9713 // NULL, HFILL }
9714 //},
9719 },
9724 },
9729 },
9734 },
9739 },
9744 },
9749 },
9754 },
9759 },
9764 },
9769 },
9774 },
9779 },
9784 },
9789 },
9794 },
9799 },
9804 },
9809 },
9814 },
9819 },
9824 },
9829 },
9834 },
9839 },
9844 },
9849 },
9850 /*Start SRVCC Messages*/
9855 },
9860 },
9865 },
9870 },
9875 },
9880 },
9885 },
9890 },
9895 },
9900 },
9905 },
9910 },
9916 },
9921 },
9926 },
9931 },
9936 },
9941 },
9945 },
9949 },
9953 },
9955 /*End SRVCC Messages*/
9960 },
9965 },
9970 },
9975 },
9980 },
9985 },
9990 },
9994 },
9998 },
10002 },
10006 },
10010 },
10014 },
10018 },
10022 },
10026 },
10030 },
10034 },
10038 },
10042 },
10046 },
10050 },
10054 },
10058 },
10062 },
10066 },
10070 },
10074 },
10078 },
10082 },
10086 },
10090 },
10094 },
10098 },
10103 },
10107 },
10111 },
10115 },
10119 },
10123 },
10127 },
10131 },
10135 },
10139 },
10143 },
10147 },
10151 },
10155 },
10159 },
10163 },
10167 },
10171 },
10175 },
10179 },
10183 },
10187 },
10191 },
10195 },
10199 },
10203 },
10207 },
10211 },
10215 },
10219 },
10223 },
10225 {"TSPCMI (Triggering SGSN Initiated PDP Context Creation/Modification Indication)", "gtpv2.tspcmi",
10227 },
10231 },
10235 },
10240 },
10245 },
10249 },
10253 },
10257 },
10261 },
10263 {"NSPUSI (Notify Start of Pause of Charging via User plane Support Indication)", "gtpv2.nspusi",
10265 },
10267 {"PGWRNSI (PGW Redirection due to mismatch with Network Slice subscribed by UE Support Indication)", "gtpv2.pgwrnsi",
10269 },
10271 {"RPPCSI (Restoration of PDN connections after an PGW-C/SMF change Support Indication)", "gtpv2.rppcsi",
10273 },
10277 },
10281 },
10285 },
10289 },
10293 },
10295 {"LAPCOSI (Large Additional Protocol Configuration Options Support Indication)", "gtpv2.lapcosi",
10297 },
10301 },
10305 },
10309 },
10316 },
10317 #if 0
10322 },
10323 #endif
10328 },
10333 },
10338 },
10343 },
10348 },
10353 },
10358 },
10363 },
10368 },
10373 },
10378 },
10383 },
10388 },
10393 },
10398 },
10403 },
10408 },
10413 },
10418 },
10423 },
10428 },
10433 },
10438 },
10443 },
10448 },
10453 },
10458 },
10463 },
10468 },
10473 },
10478 },
10483 },
10488 },
10493 },
10498 },
10503 },
10508 },
10513 },
10518 },
10523 },
10528 },
10534 },
10539 },
10544 },
10549 },
10554 },
10559 },
10564 },
10569 },
10574 },
10579 },
10584 },
10589 },
10594 },
10599 },
10604 },
10609 },
10614 },
10619 },
10624 },
10629 },
10634 },
10639 },
10644 },
10649 },
10654 },
10659 },
10664 },
10669 },
10674 },
10679 },
10684 },
10689 },
10694 },
10699 },
10704 },
10709 },
10714 },
10719 },
10724 },
10729 },
10734 },
10739 },
10744 },
10749 },
10754 },
10759 },
10764 },
10769 },
10774 },
10779 },
10784 },
10789 },
10794 },
10795 /* Bit 7 - PCI (Pre-emption Capability): See 3GPP TS 29.212[29], clause 5.3.46 Pre-emption-Capability AVP.
10796 * clause 5.3.46 Pre-emption-Capability AVP.
10797 * 5.3.46 Pre-emption-Capability AVP
10798 * The following values are defined:
10799 * PRE-EMPTION_CAPABILITY_ENABLED (0)
10800 * PRE-EMPTION_CAPABILITY_DISABLED (1)
10801 */
10806 },
10811 },
10812 /* Bit 1 - PVI (Pre-emption Vulnerability): See 3GPP TS 29.212[29],
10813 * clause 5.3.47 Pre-emption-Vulnerability AVP.
10814 * 5.3.47 Pre-emption-Vulnerability AVP
10815 * The following values are defined:
10816 * PRE-EMPTION_VULNERABILITY_ENABLED (0)
10817 * PRE-EMPTION_VULNERABILITY_DISABLED (1)
10818 */
10823 },
10828 },
10833 },
10838 },
10843 },
10848 },
10853 },
10858 },
10863 },
10868 },
10873 },
10878 },
10883 },
10888 },
10893 },
10898 },
10903 },
10908 },
10913 },
10918 },
10923 },
10928 },
10933 },
10938 },
10943 },
10948 },
10953 },
10958 },
10963 },
10968 },
10973 },
10978 },
10983 },
10988 },
10993 },
10998 },
11003 },
11008 },
11013 },
11018 },
11023 },
11028 },
11033 },
11038 },
11043 },
11048 },
11053 },
11058 },
11063 },
11068 },
11073 },
11078 },
11083 },
11088 },
11089 /* MM Context */
11094 },
11099 },
11104 },
11109 },
11114 },
11119 },
11124 },
11129 },
11134 },
11139 },
11144 },
11149 },
11154 },
11159 },
11165 },
11170 },
11175 },
11180 },
11185 },
11190 },
11195 },
11200 },
11205 },
11210 },
11215 },
11220 },
11225 },
11230 },
11235 },
11240 },
11246 },
11251 },
11256 },
11261 },
11266 },
11271 },
11276 },
11277 { &hf_gtpv2_mm_context_old_nh,{ "Old NH (Old Next Hop)", "gtpv2.mm_context.old_nh", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
11282 },
11287 },
11292 },
11297 },
11302 },
11307 },
11312 },
11317 },
11322 },
11327 },
11332 },
11337 },
11342 },
11347 },
11352 },
11357 },
11362 },
11368 },
11373 },
11378 },
11383 },
11388 },
11393 },
11398 },
11403 },
11408 },
11413 },
11418 },
11423 },
11428 },
11433 },
11438 },
11443 },
11448 },
11453 },
11458 },
11463 },
11468 },
11473 },
11478 },
11483 },
11488 },
11493 },
11498 },
11503 },
11508 },
11513 },
11518 },
11523 },
11528 },
11533 },
11538 },
11543 },
11548 },
11553 },
11558 },
11563 },
11568 },
11573 },
11578 },
11583 },
11588 },
11593 },
11598 },
11603 },
11608 },
11613 },
11618 },
11623 },
11628 },
11633 },
11638 },
11643 },
11648 },
11653 },
11658 },
11663 },
11668 },
11673 },
11678 },
11683 },
11688 },
11693 },
11698 },
11703 },
11708 },
11713 },
11718 },
11723 },
11728 },
11733 },
11738 },
11743 },
11748 },
11753 },
11758 },
11763 },
11768 },
11773 },
11778 },
11783 },
11788 },
11793 },
11798 },
11803 },
11808 },
11813 },
11818 },
11823 },
11828 },
11833 },
11838 },
11843 },
11848 },
11853 },
11858 },
11863 },
11868 },
11873 },
11878 },
11883 },
11888 },
11893 },
11898 },
11903 },
11908 },
11913 },
11918 },
11923 },
11928 },
11933 },
11938 },
11943 },
11948 },
11953 },
11958 },
11963 },
11968 },
11973 },
11978 },
11983 },
11988 },
11993 },
11998 },
12003 },
12008 },
12013 },
12018 },
12023 },
12028 },
12033 },
12038 },
12043 },
12048 },
12050 /* Generated from convert_proto_tree_add_text.pl */
12051 { &hf_gtpv2_transparent_container, { "Transparent Container", "gtpv2.transparent_container", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
12052 { &hf_gtpv2_cksrvcc, { "CKsrvcc", "gtpv2.cksrvcc", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
12053 { &hf_gtpv2_iksrvcc, { "IKsrvcc", "gtpv2.iksrvcc", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
12054 { &hf_gtpv2_mobile_station_classmark2, { "Mobile Station Classmark2", "gtpv2.mobile_station_classmark2", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
12055 { &hf_gtpv2_mobile_station_classmark3, { "Mobile Station Classmark3", "gtpv2.mobile_station_classmark3", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
12056 { &hf_gtpv2_supported_codec_list, { "Supported Codec List", "gtpv2.supported_codec_list", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
12057 { &hf_gtpv2_utran_srvcc_ck_cs, { "CK'cs", "gtpv2.utran_srvcc.ck_cs", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
12058 { &hf_gtpv2_utran_srvcc_ik_cs, { "IK'cs", "gtpv2.utran_srvcc.ik_cs", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
12059 { &hf_gtpv2_utran_srvcc_kc, { "Kc'", "gtpv2.utran_srvcc.kc", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
12060 { &hf_gtpv2_teid_c_spare, { "Spare", "gtpv2.teid_c.spare", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
12061 { &hf_gtpv2_geographic_location, { "Geographic Location", "gtpv2.geographic_location", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
12062 { &hf_gtpv2_tmsi_bytes, { "TMSI", "gtpv2.tmsi_bytes", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
12064 { &hf_gtpv2_eps_bearer_id_number, { "EPS Bearer ID Number", "gtpv2.eps_bearer_id_number", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
12065 { &hf_gtpv2_serving_gw_address_length, { "Serving GW Address Length", "gtpv2.serving_gw_address_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
12066 { &hf_gtpv2_charging_characteristic_remaining_octets, { "Remaining octets", "gtpv2.charging_characteristic.remaining_octets", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
12067 { &hf_gtpv2_trace_id, { "Trace ID", "gtpv2.trace_id", FT_UINT24, BASE_DEC, NULL, 0x0, NULL, HFILL }},
12068 { &hf_gtpv2_drx_parameter, { "DRX parameter", "gtpv2.drx_parameter", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
12069 { &hf_gtpv2_mm_context_sres, { "SRES'", "gtpv2.mm_context_sres", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
12070 { &hf_gtpv2_mm_context_kc, { "Kc'", "gtpv2.mm_context_kc", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
12071 { &hf_gtpv2_uplink_subscribed_ue_ambr, { "Uplink Subscribed UE AMBR", "gtpv2.uplink_subscribed_ue_ambr", FT_UINT32, BASE_DEC|BASE_UNIT_STRING, UNS(&units_kbps), 0x0, NULL, HFILL }},
12072 { &hf_gtpv2_downlink_subscribed_ue_ambr, { "Downlink Subscribed UE AMBR", "gtpv2.downlink_subscribed_ue_ambr", FT_UINT32, BASE_DEC|BASE_UNIT_STRING, UNS(&units_kbps), 0x0, NULL, HFILL }},
12073 { &hf_gtpv2_uplink_used_ue_ambr, { "Uplink Used UE AMBR", "gtpv2.uplink_used_ue_ambr", FT_UINT32, BASE_DEC|BASE_UNIT_STRING, UNS(&units_kbps), 0x0, NULL, HFILL }},
12074 { &hf_gtpv2_downlink_used_ue_ambr, { "Downlink Used UE AMBR", "gtpv2.downlink_used_ue_ambr", FT_UINT32, BASE_DEC|BASE_UNIT_STRING, UNS(&units_kbps), 0x0, NULL, HFILL }},
12075 { &hf_gtpv2_voice_domain_and_ue_usage_setting, { "Voice Domain Preference and UE's Usage Setting", "gtpv2.voice_domain_and_ue_usage_setting", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
12076 { &hf_gtpv2_ue_radio_capability_for_paging_information,{ "UE Radio Capability for Paging information", "gtpv2.UE_Radio_Capability_for_Paging_information", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
12077 { &hf_gtpv2_authentication_quadruplets, { "Authentication Quadruplets", "gtpv2.authentication_quadruplets", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
12078 { &hf_gtpv2_authentication_quintuplets, { "Authentication Quintuplets", "gtpv2.authentication_quintuplets", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
12079 { &hf_gtpv2_mm_context_nh, { "NH (Next Hop)", "gtpv2.mm_context_nh", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
12080 { &hf_gtpv2_mm_context_ncc, { "NCC (Next Hop Chaining Count)", "gtpv2.mm_context_ncc", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL }},
12081 { &hf_gtpv2_nsapi08, { "NSAPI", "gtpv2.nsapi", FT_UINT8, BASE_DEC, NULL, 0x08, NULL, HFILL }},
12082 { &hf_gtpv2_dl_gtp_u_sequence_number, { "DL GTP-U Sequence Number", "gtpv2.dl_gtp_u_sequence_number", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
12083 { &hf_gtpv2_ul_gtp_u_sequence_number, { "UL GTP-U Sequence Number", "gtpv2.ul_gtp_u_sequence_number", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
12084 { &hf_gtpv2_send_n_pdu_number, { "Send N-PDU Number", "gtpv2.send_n_pdu_number", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
12085 { &hf_gtpv2_receive_n_pdu_number, { "Receive N-PDU Number", "gtpv2.receive_n_pdu_number", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
12086 { &hf_gtpv2_hop_counter, { "Hop Counter", "gtpv2.hop_counter", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
12087 { &hf_gtpv2_packet_flow_id, { "Packet Flow ID", "gtpv2.packet_flow_id", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
12088 { &hf_gtpv2_rrc_container, { "RRC Container", "gtpv2.rrc_container", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
12089 { &hf_gtpv2_port_number, { "Port Number", "gtpv2.port_number", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
12090 { &hf_gtpv2_proprietary_value, { "Proprietary value", "gtpv2.proprietary_value", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
12091 { &hf_gtpv2_spare_bytes, { "Spare", "gtpv2.spare_bytes", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
12092 { &hf_gtpv2_dl_pdcp_sequence_number, { "DL PDCP Sequence Number", "gtpv2.dl_pdcp_sequence_number", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
12093 { &hf_gtpv2_ul_pdcp_sequence_number, { "UL PDCP Sequence Number", "gtpv2.ul_pdcp_sequence_number", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
12094 { &hf_gtpv2_fq_csid_node_id, { "Node-ID", "gtpv2.fq_csid_node_id", FT_UINT32, BASE_DEC, NULL, 0x00000FFF, NULL, HFILL }},
12095 { &hf_gtpv2_fq_csid_mcc_mnc, { "MCC+MNC", "gtpv2.fq_csid_mcc_mnc", FT_UINT32, BASE_DEC, NULL, 0xFFFFF000, NULL, HFILL }},
12097 { &hf_gtpv2_twan_id_ts, { "TWAN Identifier Timestamp", "gtpv2.twan.id_ts", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_NTP_UTC, NULL, 0, NULL, HFILL } },
12098 { &hf_gtpv2_twan_flags,{ "Flags", "gtpv2.twan_id.flags", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
12099 { &hf_gtpv2_twan_bssidi,{ "BSSIDI", "gtpv2.twan_id.bssidi", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x01, NULL, HFILL } },
12100 { &hf_gtpv2_twan_civai,{ "CIVAI", "gtpv2.twan_id.civai", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x02, NULL, HFILL } },
12101 { &hf_gtpv2_twan_plmni,{ "PLMNI", "gtpv2.twan_id.plmni", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x04, NULL, HFILL } },
12102 { &hf_gtpv2_twan_opnai,{ "OPNAI", "gtpv2.twan_id.opnai", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x08, NULL, HFILL } },
12103 { &hf_gtpv2_twan_laii,{ "LAII", "gtpv2.twan_id.laii", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x10, NULL, HFILL } },
12104 { &hf_gtpv2_twan_ssid_len,{ "SSID Length", "gtpv2.twan_id.ssid_len", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
12105 { &hf_gtpv2_twan_ssid,{ "SSID", "gtpv2.twan_id.ssid", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
12106 { &hf_gtpv2_twan_bssid,{ "BSSID", "gtpv2.twan_id.bssid", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
12107 { &hf_gtpv2_twan_civa_len,{ "Civic Address Length", "gtpv2.twan_id.civa_len", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
12108 { &hf_gtpv2_twan_civa,{ "Civic Address Information", "gtpv2.twan_id.civa", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
12109 { &hf_gtpv2_twan_plmnid,{ "TWAN PLMN-ID", "gtpv2.twan_id.plmnid", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
12110 { &hf_gtpv2_twan_op_name_len,{ "TWAN Operator Name Length", "gtpv2.twan_id.op_name_len", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
12111 { &hf_gtpv2_twan_op_name,{ "TWAN Operator Name", "gtpv2.twan_id.op_name", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
12112 { &hf_gtpv2_twan_relay_id_type,{ "Relay Identity Type", "gtpv2.twan_id.relay_id_type", FT_UINT8, BASE_DEC, VALS(gtpv2_twan_relay_id_type_vals), 0x0, NULL, HFILL } },
12113 { &hf_gtpv2_twan_relay_id_len,{ "Relay Identity Type Length", "gtpv2.twan_id.relay_id_type_len", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
12114 { &hf_gtpv2_twan_relay_id,{ "Relay Identity", "gtpv2.twan_id.relay_id", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } },
12115 { &hf_gtpv2_twan_relay_id_ipv4,{ "Relay Identity", "gtpv2.twan_id.relay_id_ipv4", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL } },
12116 { &hf_gtpv2_twan_relay_id_ipv6,{ "Relay Identity", "gtpv2.twan_id.relay_id_ipv6", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL } },
12117 { &hf_gtpv2_twan_circuit_id_len,{ "Relay Identity Type Length", "gtpv2.twan_id.relay_id_type_len", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
12118 { &hf_gtpv2_twan_circuit_id,{ "Circuit-ID", "gtpv2.twan_id.circuit_id", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
12119 { &hf_gtpv2_integer_number_val,{ "Value", "gtpv2.integer_number_val", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
12120 { &hf_gtpv2_maximum_wait_time,{ "Maximum Wait Time", "gtpv2.maximum_wait_time", FT_UINT32, BASE_DEC | BASE_UNIT_STRING, UNS(&units_milliseconds), 0x0, NULL, HFILL } },
12121 { &hf_gtpv2_dl_buf_sug_pkt_cnt,{ "DL Buffering Suggested Packet Count", "gtpv2.dl_buf_sug_pkt_cnt", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
12122 { &hf_gtpv2_ue_usage_type,{ "UE Usage Type", "gtpv2.ue_usage_type", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
12123 { &hf_gtpv2_rem_run_serv_gap_t,{ "Remaining Running Service Gap Timer", "gtpv2.rem_run_serv_gap_t", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
12124 { &hf_gtpv2_ran_nas_protocol_type, {"RAN/NAS Protocol Type", "gtpv2.ran_nas.protocol_type", FT_UINT8, BASE_DEC, VALS(ran_nas_prot_type_vals), 0xF0, NULL, HFILL} },
12125 { &hf_gtpv2_ran_nas_cause_type, {"RAN/NAS S1AP Cause Type", "gtpv2.ran_nas.s1ap_type", FT_UINT8, BASE_DEC, VALS(s1ap_Cause_vals), 0x0F, NULL, HFILL} },
12126 { &hf_gtpv2_ran_nas_cause_value, {"RAN/NAS Cause Value", "gtpv2.ran_nas.cause_value", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL} },
12127 { &hf_gtpv2_emm_cause, {"EMM Cause Value", "gtpv2.ran_nas.emm_cause", FT_UINT8, BASE_DEC, VALS(nas_eps_emm_cause_values), 0x0, NULL, HFILL} },
12128 { &hf_gtpv2_esm_cause, {"ESM Cause Value", "gtpv2.ran_nas.esm_cause", FT_UINT8, BASE_DEC, VALS(nas_eps_esm_cause_vals), 0x0, NULL, HFILL} },
12129 { &hf_gtpv2_diameter_cause, {"Diameter Cause Value", "gtpv2.ran_nas.diameter_cause", FT_UINT16, BASE_DEC, VALS(diameter_3gpp_termination_cause_vals), 0x0, NULL, HFILL} },
12130 { &hf_gtpv2_ikev2_cause, {"IKEv2 Cause Value", "gtpv2.ran_nas.ikev2_cause", FT_UINT16, BASE_DEC, VALS(diameter_3gpp_IKEv2_error_type_vals), 0x0, NULL, HFILL} },
12131 { &hf_gtpv2_ciot_support_ind,{ "CIoT Optimizations Support Indication", "gtpv2.ciot_support_ind", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
12136 },
12141 },
12146 },
12151 },
12156 },
12161 },
12166 },
12171 },
12176 },
12181 },
12186 },
12191 },
12196 },
12201 },
12206 },
12211 },
12216 },
12221 },
12226 },
12231 },
12233 { "LRTP (Remaining Minimum Periodic Location Reporting Time Present)", "gtpv2.mon_event_ext_inf.lrtp",
12236 },
12241 },
12246 },
12251 },
12256 },
12258 { "Remaining Minimum Periodic Location Reporting Time", "gtpv2.mon_event_ext_inf.remain_min_period_loc_report_type",
12261 },
12266 },
12271 },
12276 },
12281 },
12286 },
12291 },
12296 },
12301 },
12306 },
12311 },
12316 },
12321 },
12326 },
12331 },
12336 },
12341 },
12346 },
12351 },
12356 },
12361 },
12363 { "SRUDN (Secondary RAT Usage Report from NG-RAN)", "gtpv2.secondary_rat_usage_data_report.srudn",
12366 },
12371 },
12376 },
12381 },
12386 },
12391 },
12396 },
12401 },
12406 },
12411 },
12416 },
12421 },
12426 },
12431 },
12436 },
12441 },
12446 },
12451 },
12456 },
12461 },
12466 },
12471 },
12476 },
12481 },
12486 },
12491 },
12496 },
12501 },
12506 },
12511 },
12516 },
12521 },
12526 },
12531 },
12536 },
12541 },
12546 },
12551 },
12556 },
12561 },
12566 },
12571 },
12576 },
12581 },
12586 },
12591 },
12596 },
12601 },
12606 },
12611 },
12616 },
12621 },
12626 },
12631 },
12636 },
12641 },
12646 },
12651 },
12656 },
12661 },
12666 },
12671 },
12676 },
12681 },
12686 },
12691 },
12696 },
12701 },
12706 },
12711 },
12716 },
12721 },
12726 },
12731 },
12736 },
12741 },
12746 },
12751 },
12756 },
12761 },
12766 },
12771 },
12776 },
12781 },
12786 },
12791 },
12796 },
12801 },
12806 },
12811 },
12816 },
12821 },
12826 },
12831 },
12836 },
12841 },
12846 },
12851 },
12856 },
12861 },
12866 },
12871 },
12876 },
12881 },
12886 },
12891 },
12896 },
12901 },
12906 },
12911 },
12916 },
12921 },
12926 },
12931 },
12936 },
12941 },
12946 },
12951 },
12956 },
12961 },
12966 },
12971 },
12976 },
12981 },
12986 },
12991 },
12996 },
13001 },
13006 },
13011 },
13016 },
13021 },
13026 },
13031 },
13036 },
13041 },
13046 },
13051 },
13052 };
13054 /* Setup protocol subtree array */
13055 #define GTPV2_NUM_INDIVIDUAL_ELEMS 85
13146 {
13148 }
13151 { &ei_gtpv2_ie_data_not_dissected, { "gtpv2.ie_data_not_dissected", PI_UNDECODED, PI_NOTE, "IE data not dissected yet", EXPFILL }},
13152 { &ei_gtpv2_ie_len_invalid, { "gtpv2.ie_len_invalid", PI_PROTOCOL, PI_ERROR, "Wrong length", EXPFILL }},
13153 { &ei_gtpv2_source_type_unknown, { "gtpv2.source_type.unknown", PI_PROTOCOL, PI_ERROR, "Unknown source type", EXPFILL }},
13154 { &ei_gtpv2_fq_csid_type_bad, { "gtpv2.fq_csid_type.unknown", PI_PROTOCOL, PI_ERROR, "Wrong Node-ID Type", EXPFILL }},
13155 { &ei_gtpv2_mbms_session_duration_days, { "gtpv2.mbms_session_duration_days.invalid", PI_PROTOCOL, PI_WARN, "Days out of allowed range", EXPFILL }},
13156 { &ei_gtpv2_mbms_session_duration_secs, { "gtpv2.mbms_session_duration_secs.unknown", PI_PROTOCOL, PI_WARN, "Seconds out of allowed range", EXPFILL }},
13157 { &ei_gtpv2_ie, { "gtpv2.ie_type.reserved", PI_PROTOCOL, PI_WARN, "IE type Zero is Reserved and should not be used", EXPFILL }},
13158 { &ei_gtpv2_int_size_not_handled, { "gtpv2.ie_type.int_size_not_handled", PI_PROTOCOL, PI_WARN, "Integer size not handled yet", EXPFILL } },
13159 { &ei_gtpv2_apn_too_long, { "gtpv2.apn_too_long", PI_PROTOCOL, PI_WARN, "APN encoding has more than 100 octets", EXPFILL } },
13160 };
13169 };
13177 "This is needed until there's a reliable way to determine the contents of the transparent containers.",
13180 prefs_register_uint_preference(gtpv2_module, "pair_max_interval", "Max interval allowed in pair matching", "Request/reply pair matches only if their timestamps are closer than that value, in ms (default 0, i.e. don't use timestamps)", 10, &pref_pair_matching_max_interval_ms);
13188 /* Dissector table for private extensions */
13189 gtpv2_priv_ext_dissector_table = register_dissector_table("gtpv2.priv_ext", "GTPv2 Private Extension", proto_gtpv2, FT_UINT16, BASE_DEC);
13194 }
13196 void
13198 {
13199 //static bool Initialized = false;
13205 /* AVP Code: 22 3GPP-User-Location-Info */
13206 dissector_add_uint("diameter.3gpp", 22, create_dissector_handle(dissect_diameter_3gpp_uli, proto_gtpv2));
13208 /* AVP Code: 2820 Presence-Reporting-Area-Elements-List */
13209 dissector_add_uint("diameter.3gpp", 2820, create_dissector_handle(dissect_diameter_3gpp_presence_reporting_area_elements_list, proto_gtpv2));
13211 }
13213 /*
13214 * Editor modelines
13215 *
13216 * Local Variables:
13217 * c-basic-offset: 4
13218 * tab-width: 8
13219 * indent-tabs-mode: nil
13220 * End:
13221 *
13222 * ex: set shiftwidth=4 tabstop=8 expandtab:
13223 * :indentSize=4:tabSize=8:noTabs=true:
13224 */