/epan/dissectors/packet-gtpv2.c

https://bitbucket.org/stevexiao/wireshark · C · 4504 lines · 3453 code · 379 blank · 672 comment · 58 complexity · f9a378f893bdf921e74fb028818d20aa MD5 · raw file 

    

  1. /* packet-gtpv2.c
    2. 

  2.  *
    3. 

  3.  * Routines for GTPv2 dissection
    4. 

  4.  * Copyright 2009 - 2011, Anders Broman <anders.broman [at] ericcsson.com>
    5. 

  5.  *
    6. 

  6.  * $Id: packet-gtpv2.c 38852 2011-09-01 23:27:28Z gerald $
    7. 

  7.  *
    8. 

  8.  * Wireshark - Network traffic analyzer
    9. 

  9.  * By Gerald Combs <gerald@wireshark.org>
    10. 

  10.  * Copyright 1998 Gerald Combs
    11. 

  11.  *
    12. 

  12.  * This program is free software; you can redistribute it and/or
    13. 

  13.  * modify it under the terms of the GNU General Public License
    14. 

  14.  * as published by the Free Software Foundation; either version 2
    15. 

  15.  * of the License, or (at your option) any later version.
    16. 

  16.  *
    17. 

  17.  * This program is distributed in the hope that it will be useful,
    18. 

  18.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    19. 

  19.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    20. 

  20.  * GNU General Public License for more details.
    21. 

  21.  *
    22. 

  22.  * You should have received a copy of the GNU General Public License
    23. 

  23.  * along with this program; if not, write to the Free Software
    24. 

  24.  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
    25. 

  25.  * Ref: 3GPP TS 29.274 version 8.1.1 Release 8 ETSI TS 129 274 V8.1.1 (2009-04)
    26. 

  26.  */
    27. 

  27. 

  28. #ifdef HAVE_CONFIG_H
    29. 

  29. # include "config.h"
    30. 

  30. #endif
    31. 

  31. 

  32. #include <stdlib.h>
    33. 

  33. 

  34. #include <glib.h>
    35. 

  35. 

  36. #include <epan/packet.h>
    37. 

  37. #include <epan/asn1.h>
    38. 

  38. #include <epan/expert.h>
    39. 

  39. #include <epan/sminmpec.h>
    40. 

  40. 

  41. #include "packet-gsm_a_common.h"
    42. 

  42. #include "packet-gsm_map.h"
    43. 

  43. #include "packet-e164.h"
    44. 

  44. #include "packet-e212.h"
    45. 

  45. #include "packet-s1ap.h"
    46. 

  46. #include "packet-ranap.h"
    47. 

  47. 

  48. 

  49. static dissector_handle_t nas_eps_handle;
    50. 

  50. 

  51. /*GTPv2 Message->GTP Header(SB)*/
    52. 

  52. static int proto_gtpv2 = -1;
    53. 

  53. 

  54. static int hf_gtpv2_reserved = -1;
    55. 

  55. static int hf_gtpv2_spare_half_octet = -1;
    56. 

  56. static int hf_gtpv2_spare_bits = -1;
    57. 

  57. static int hf_gtpv2_flags = -1;
    58. 

  58. static int hf_gtpv2_version = -1;
    59. 

  59. static int hf_gtpv2_p = -1;
    60. 

  60. static int hf_gtpv2_t = -1;
    61. 

  61. static int hf_gtpv2_message_type = -1;
    62. 

  62. static int hf_gtpv2_msg_length = -1;
    63. 

  63. static int hf_gtpv2_teid = -1;
    64. 

  64. static int hf_gtpv2_seq = -1;
    65. 

  65. static int hf_gtpv2_spare = -1;
    66. 

  66. 

  67. 

  68. static int hf_gtpv2_ie = -1;
    69. 

  69. static int hf_gtpv2_ie_len = -1;
    70. 

  70. static int hf_gtpv2_cr = -1;
    71. 

  71. static int hf_gtpv2_instance = -1;
    72. 

  72. static int hf_gtpv2_cause = -1;
    73. 

  73. static int hf_gtpv2_cause_cs = -1;
    74. 

  74. static int hf_gtpv2_cause_bce = -1;
    75. 

  75. static int hf_gtpv2_cause_pce = -1;
    76. 

  76. static int hf_gtpv2_cause_off_ie_t = -1;
    77. 

  77. static int hf_gtpv2_rec = -1;
    78. 

  78. static int hf_gtpv2_apn = -1;
    79. 

  79. static int hf_gtpv2_ebi = -1;
    80. 

  80. static int hf_gtpv2_daf = -1;
    81. 

  81. static int hf_gtpv2_dtf = -1;
    82. 

  82. static int hf_gtpv2_hi = -1;
    83. 

  83. static int hf_gtpv2_dfi = -1;
    84. 

  84. static int hf_gtpv2_oi = -1;
    85. 

  85. static int hf_gtpv2_isrsi = -1;
    86. 

  86. static int hf_gtpv2_israi = -1;
    87. 

  87. static int hf_gtpv2_sgwci = -1;
    88. 

  88. static int hf_gtpv2_sqci = -1;
    89. 

  89. static int hf_gtpv2_uimsi = -1;
    90. 

  90. static int hf_gtpv2_cfsi = -1;
    91. 

  91. static int hf_gtpv2_crsi = -1;
    92. 

  92. static int hf_gtpv2_pt = -1;
    93. 

  93. static int hf_gtpv2_ps = -1;
    94. 

  94. static int hf_gtpv2_si = -1;
    95. 

  95. static int hf_gtpv2_msv = -1;
    96. 

  96. static int hf_gtpv2_ccrsi = -1;
    97. 

  97. static int hf_gtpv2_pdn_type = -1;
    98. 

  98. static int hf_gtpv2_pdn_ipv4 = -1;
    99. 

  99. static int hf_gtpv2_pdn_ipv6_len = -1;
    100. 

  100. static int hf_gtpv2_pdn_ipv6 = -1;
    101. 

  101. static int hf_gtpv2_pdn_numbers_nsapi = -1;
    102. 

  102. static int hf_gtpv2_p_tmsi = -1;
    103. 

  103. static int hf_gtpv2_p_tmsi_sig = -1;
    104. 

  104. 

  105. 

  106. static int hf_gtpv2_rat_type = -1;
    107. 

  107. static int hf_gtpv2_uli_ecgi_flg = -1;
    108. 

  108. static int hf_gtpv2_uli_lai_flg = -1;
    109. 

  109. static int hf_gtpv2_uli_tai_flg = -1;
    110. 

  110. static int hf_gtpv2_uli_rai_flg = -1;
    111. 

  111. static int hf_gtpv2_uli_sai_flg = -1;
    112. 

  112. static int hf_gtpv2_uli_cgi_flg = -1;
    113. 

  113. static int hf_gtpv2_cng_rep_act = -1;
    114. 

  114. 

  115. static int hf_gtpv2_selec_mode = -1;
    116. 

  116. static int hf_gtpv2_source_type = -1;
    117. 

  117. static int hf_gtpv2_f_teid_v4 = -1;
    118. 

  118. static int hf_gtpv2_f_teid_v6 = -1;
    119. 

  119. static int hf_gtpv2_f_teid_interface_type= -1;
    120. 

  120. static int hf_gtpv2_f_teid_gre_key= -1;
    121. 

  121. static int hf_gtpv2_f_teid_ipv4= -1;
    122. 

  122. static int hf_gtpv2_f_teid_ipv6= -1;
    123. 

  123. static int hf_gtpv2_tmsi = -1;
    124. 

  124. static int hf_gtpv2_hsgw_addr_f_len = -1;
    125. 

  125. static int hf_gtpv2_hsgw_addr_ipv4 = -1;
    126. 

  126. static int hf_gtpv2_hsgw_addr_ipv6 = -1;
    127. 

  127. static int hf_gtpv2_gre_key = -1;
    128. 

  128. static int hf_gtpv2_sgw_addr_ipv4 = -1;
    129. 

  129. static int hf_gtpv2_sgw_addr_ipv6 = -1;
    130. 

  130. static int hf_gtpv2_sgw_s1u_teid = -1;
    131. 

  131. static int hf_gtpv2_imsi= -1;
    132. 

  132. static int hf_gtpv2_ipv4_addr = -1;
    133. 

  133. 

  134. 

  135. static int hf_gtpv2_ambr_up= -1;
    136. 

  136. static int hf_gtpv2_ambr_down= -1;
    137. 

  137. static int hf_gtpv2_ip_address_ipv4= -1;
    138. 

  138. static int hf_gtpv2_ip_address_ipv6= -1;
    139. 

  139. static int hf_gtpv2_mei= -1;
    140. 

  140. 

  141. /* Trace Information */
    142. 

  142. static int hf_gtpv2_tra_info = -1;
    143. 

  143. static int hf_gtpv2_tra_info_msc_momt_calls = -1;
    144. 

  144. static int hf_gtpv2_tra_info_msc_momt_sms = -1;
    145. 

  145. static int hf_gtpv2_tra_info_msc_lu_imsi_ad = -1;
    146. 

  146. static int hf_gtpv2_tra_info_msc_handovers = -1;
    147. 

  147. static int hf_gtpv2_tra_info_msc_ss = -1;
    148. 

  148. static int hf_gtpv2_tra_info_mgw_context = -1;
    149. 

  149. static int hf_gtpv2_tra_info_sgsn_pdp_context = -1;
    150. 

  150. static int hf_gtpv2_tra_info_sgsn_momt_sms = -1;
    151. 

  151. static int hf_gtpv2_tra_info_sgsn_rau_gprs_ad = -1;
    152. 

  152. static int hf_gtpv2_tra_info_sgsn_mbms = -1;
    153. 

  153. static int hf_gtpv2_tra_info_sgsn_reserved = -1;
    154. 

  154. static int hf_gtpv2_tra_info_ggsn_pdp = -1;
    155. 

  155. static int hf_gtpv2_tra_info_ggsn_mbms = -1;
    156. 

  156. static int hf_gtpv2_tra_info_bm_sc = -1;
    157. 

  157. static int hf_gtpv2_tra_info_mme_sgw_ss = -1;
    158. 

  158. static int hf_gtpv2_tra_info_mme_sgw_sr = -1;
    159. 

  159. static int hf_gtpv2_tra_info_mme_sgw_iataud = -1;
    160. 

  160. static int hf_gtpv2_tra_info_lne_msc_s = -1;
    161. 

  161. static int hf_gtpv2_tra_info_lne_mgw = -1;
    162. 

  162. static int hf_gtpv2_tra_info_lne_sgsn = -1;
    163. 

  163. static int hf_gtpv2_tra_info_lne_ggsn = -1;
    164. 

  164. static int hf_gtpv2_tra_info_lne_rnc = -1;
    165. 

  165. static int hf_gtpv2_tra_info_lne_bm_sc = -1;
    166. 

  166. static int hf_gtpv2_tra_info_lne_mme = -1;
    167. 

  167. static int hf_gtpv2_tra_info_lne_sgw = -1;
    168. 

  168. static int hf_gtpv2_tra_info_lne_pdn_gw = -1;
    169. 

  169. static int hf_gtpv2_tra_info_lne_enb = -1;
    170. 

  170. static int hf_gtpv2_tra_info_tdl = -1;
    171. 

  171. static int hf_gtpv2_tra_info_lmsc_a = -1;
    172. 

  172. static int hf_gtpv2_tra_info_lmsc_lu = -1;
    173. 

  173. static int hf_gtpv2_tra_info_lmsc_mc = -1;
    174. 

  174. static int hf_gtpv2_tra_info_lmsc_map_g = -1;
    175. 

  175. static int hf_gtpv2_tra_info_lmsc_map_b = -1;
    176. 

  176. static int hf_gtpv2_tra_info_lmsc_map_e = -1;
    177. 

  177. static int hf_gtpv2_tra_info_lmsc_map_f = -1;
    178. 

  178. static int hf_gtpv2_tra_info_lmsc_cap = -1;
    179. 

  179. static int hf_gtpv2_tra_info_lmsc_map_d = -1;
    180. 

  180. static int hf_gtpv2_tra_info_lmsc_map_c = -1;
    181. 

  181. static int hf_gtpv2_tra_info_lmgw_mc = -1;
    182. 

  182. static int hf_gtpv2_tra_info_lmgw_nb_up = -1;
    183. 

  183. static int hf_gtpv2_tra_info_lmgw_lu_up = -1;
    184. 

  184. static int hf_gtpv2_tra_info_lsgsn_gb = -1;
    185. 

  185. static int hf_gtpv2_tra_info_lsgsn_lu = -1;
    186. 

  186. static int hf_gtpv2_tra_info_lsgsn_gn = -1;
    187. 

  187. static int hf_gtpv2_tra_info_lsgsn_map_gr = -1;
    188. 

  188. static int hf_gtpv2_tra_info_lsgsn_map_gd = -1;
    189. 

  189. static int hf_gtpv2_tra_info_lsgsn_map_gf = -1;
    190. 

  190. static int hf_gtpv2_tra_info_lsgsn_gs = -1;
    191. 

  191. static int hf_gtpv2_tra_info_lsgsn_ge = -1;
    192. 

  192. static int hf_gtpv2_tra_info_lggsn_gn = -1;
    193. 

  193. static int hf_gtpv2_tra_info_lggsn_gi = -1;
    194. 

  194. static int hf_gtpv2_tra_info_lggsn_gmb = -1;
    195. 

  195. static int hf_gtpv2_tra_info_lrnc_lu = -1;
    196. 

  196. static int hf_gtpv2_tra_info_lrnc_lur = -1;
    197. 

  197. static int hf_gtpv2_tra_info_lrnc_lub = -1;
    198. 

  198. static int hf_gtpv2_tra_info_lrnc_uu = -1;
    199. 

  199. static int hf_gtpv2_tra_info_lbm_sc_gmb = -1;
    200. 

  200. static int hf_gtpv2_tra_info_lmme_s1_mme = -1;
    201. 

  201. static int hf_gtpv2_tra_info_lmme_s3 = -1;
    202. 

  202. static int hf_gtpv2_tra_info_lmme_s6a = -1;
    203. 

  203. static int hf_gtpv2_tra_info_lmme_s10 = -1;
    204. 

  204. static int hf_gtpv2_tra_info_lmme_s11 = -1;
    205. 

  205. static int hf_gtpv2_tra_info_lsgw_s4 = -1;
    206. 

  206. static int hf_gtpv2_tra_info_lsgw_s5 = -1;
    207. 

  207. static int hf_gtpv2_tra_info_lsgw_s8b = -1;
    208. 

  208. static int hf_gtpv2_tra_info_lsgw_s11 = -1;
    209. 

  209. static int hf_gtpv2_tra_info_lpdn_gw_s2a = -1;
    210. 

  210. static int hf_gtpv2_tra_info_lpdn_gw_s2b = -1;
    211. 

  211. static int hf_gtpv2_tra_info_lpdn_gw_s2c = -1;
    212. 

  212. static int hf_gtpv2_tra_info_lpdn_gw_s5 = -1;
    213. 

  213. static int hf_gtpv2_tra_info_lpdn_gw_s6c = -1;
    214. 

  214. static int hf_gtpv2_tra_info_lpdn_gw_gx = -1;
    215. 

  215. static int hf_gtpv2_tra_info_lpdn_gw_s8b = -1;
    216. 

  216. static int hf_gtpv2_tra_info_lpdn_gw_sgi = -1;
    217. 

  217. static int hf_gtpv2_tra_info_lenb_s1_mme = -1;
    218. 

  218. static int hf_gtpv2_tra_info_lenb_x2 = -1;
    219. 

  219. static int hf_gtpv2_tra_info_lenb_uu = -1;
    220. 

  220. 

  221. static int hf_gtpv2_address_digits = -1;
    222. 

  222. static int hf_gtpv2_ti = -1;
    223. 

  223. 

  224. static int hf_gtpv2_bearer_qos_pvi= -1;
    225. 

  225. static int hf_gtpv2_bearer_qos_pl= -1;
    226. 

  226. static int hf_gtpv2_bearer_qos_pci= -1;
    227. 

  227. static int hf_gtpv2_bearer_qos_label_qci = -1;
    228. 

  228. static int hf_gtpv2_bearer_qos_mbr_up = -1;
    229. 

  229. static int hf_gtpv2_bearer_qos_mbr_down = -1;
    230. 

  230. static int hf_gtpv2_bearer_qos_gbr_up = -1;
    231. 

  231. static int hf_gtpv2_bearer_qos_gbr_down = -1;
    232. 

  232. static int hf_gtpv2_flow_qos_label_qci = -1;
    233. 

  233. static int hf_gtpv2_flow_qos_mbr_up = -1;
    234. 

  234. static int hf_gtpv2_flow_qos_mbr_down = -1;
    235. 

  235. static int hf_gtpv2_flow_qos_gbr_up = -1;
    236. 

  236. static int hf_gtpv2_flow_qos_gbr_down = -1;
    237. 

  237. 

  238. static int hf_gtpv2_delay_value = -1;
    239. 

  239. static int hf_gtpv2_charging_id = -1;
    240. 

  240. static int hf_gtpv2_charging_characteristic = -1;
    241. 

  241. static int hf_gtpv2_bearer_flag_ppc = -1;
    242. 

  242. static int hf_gtpv2_bearer_flag_vb = -1;
    243. 

  243. static int hf_gtpv2_ue_time_zone_dst = -1;
    244. 

  244. static int hf_gtpv2_fq_csid_type = -1;
    245. 

  245. static int hf_gtpv2_fq_csid_nr = -1;
    246. 

  246. static int hf_gtpv2_fq_csid_ipv4 = -1;
    247. 

  247. static int hf_gtpv2_fq_csid_ipv6 = -1;
    248. 

  248. static int hf_gtpv2_fq_csid_id = -1;
    249. 

  249. static int hf_gtpv2_complete_req_msg_type = -1;
    250. 

  250. static int hf_gtpv2_mme_grp_id = -1;
    251. 

  251. static int hf_gtpv2_mme_code = -1;
    252. 

  252. static int hf_gtpv2_m_tmsi = -1;
    253. 

  253. static int hf_gtpv2_container_type = -1;
    254. 

  254. static int hf_gtpv2_cause_type = -1;
    255. 

  255. static int hf_gtpv2_CauseRadioNetwork = -1;
    256. 

  256. static int hf_gtpv2_CauseTransport = -1;
    257. 

  257. static int hf_gtpv2_CauseNas = -1;
    258. 

  258. static int hf_gtpv2_CauseProtocol = -1;
    259. 

  259. static int hf_gtpv2_CauseMisc = -1;
    260. 

  260. static int hf_gtpv2_target_type = -1;
    261. 

  261. static int hf_gtpv2_macro_enodeb_id = -1;
    262. 

  262. 

  263. static int hf_gtpv2_node_type= -1;
    264. 

  264. static int hf_gtpv2_fqdn = -1;
    265. 

  265. static int hf_gtpv2_enterprise_id = -1;
    266. 

  266. static int hf_gtpv2_apn_rest= -1;
    267. 

  267. static int hf_gtpv2_pti= -1;
    268. 

  268. static int hf_gtpv2_mm_context_sm = -1;
    269. 

  269. static int hf_gtpv2_mm_context_nhi = -1;
    270. 

  270. static int hf_gtpv2_mm_context_drxi = -1;
    271. 

  271. static int hf_gtpv2_mm_context_cksn = -1;
    272. 

  272. static int hf_gtpv2_mm_context_cksn_ksi = -1;
    273. 

  273. static int hf_gtpv2_mm_context_ksi_a= -1;
    274. 

  274. static int hf_gtpv2_mm_context_ksi = -1;
    275. 

  275. static int hf_gtpv2_mm_context_nr_tri = -1;
    276. 

  276. static int hf_gtpv2_mm_context_nr_qui = -1;
    277. 

  277. static int hf_gtpv2_mm_context_nr_qua = -1;
    278. 

  278. static int hf_gtpv2_mm_context_unipa = -1;
    279. 

  279. static int hf_gtpv2_mm_context_unc = -1;
    280. 

  280. static int hf_gtpv2_mm_context_nas_dl_cnt = -1;
    281. 

  281. static int hf_gtpv2_mm_context_nas_ul_cnt = -1;
    282. 

  282. 

  283. static int hf_gtpv2_uli_cgi_lac= -1;
    284. 

  284. static int hf_gtpv2_uli_cgi_ci= -1;
    285. 

  285. static int hf_gtpv2_uli_sai_lac= -1;
    286. 

  286. static int hf_gtpv2_uli_sai_sac= -1;
    287. 

  287. static int hf_gtpv2_uli_rai_lac= -1;
    288. 

  288. static int hf_gtpv2_uli_rai_rac= -1;
    289. 

  289. static int hf_gtpv2_uli_tai_tac= -1;
    290. 

  290. static int hf_gtpv2_uli_ecgi_eci= -1;
    291. 

  291. static int hf_gtpv2_uli_lai_lac = -1;
    292. 

  292. static int hf_gtpv2_uli_ecgi_eci_spare= -1;
    293. 

  293. static int hf_gtpv2_nsapi = -1;
    294. 

  294. static int hf_gtpv2_bearer_control_mode= -1;
    295. 

  295. 

  296. 

  297. static gint ett_gtpv2 = -1;
    298. 

  298. static gint ett_gtpv2_flags = -1;
    299. 

  299. static gint ett_gtpv2_ie = -1;
    300. 

  300. static gint ett_gtpv2_uli_flags = -1;
    301. 

  301. static gint ett_gtpv2_uli_field = -1;
    302. 

  302. static gint ett_gtpv2_bearer_ctx = -1;
    303. 

  303. static gint ett_gtpv2_PDN_conn = -1;
    304. 

  304. static gint ett_gtpv2_mm_context_flag = -1;
    305. 

  305. static gint ett_gtpv2_pdn_numbers_nsapi = -1;
    306. 

  306. static gint ett_gtpv2_tra_info_trigg = -1;
    307. 

  307. static gint ett_gtpv2_tra_info_trigg_msc_server = -1;
    308. 

  308. static gint ett_gtpv2_tra_info_trigg_mgw = -1;
    309. 

  309. static gint ett_gtpv2_tra_info_trigg_sgsn = -1;
    310. 

  310. static gint ett_gtpv2_tra_info_trigg_ggsn = -1;
    311. 

  311. static gint ett_gtpv2_tra_info_trigg_bm_sc = -1;
    312. 

  312. static gint ett_gtpv2_tra_info_trigg_sgw_mme = -1;
    313. 

  313. static gint ett_gtpv2_tra_info_interfaces = -1;
    314. 

  314. static gint ett_gtpv2_tra_info_interfaces_imsc_server = -1;
    315. 

  315. static gint ett_gtpv2_tra_info_interfaces_lmgw = -1;
    316. 

  316. static gint ett_gtpv2_tra_info_interfaces_lsgsn = -1;
    317. 

  317. static gint ett_gtpv2_tra_info_interfaces_lggsn = -1;
    318. 

  318. static gint ett_gtpv2_tra_info_interfaces_lrnc = -1;
    319. 

  319. static gint ett_gtpv2_tra_info_interfaces_lbm_sc = -1;
    320. 

  320. static gint ett_gtpv2_tra_info_interfaces_lmme = -1;
    321. 

  321. static gint ett_gtpv2_tra_info_interfaces_lsgw = -1;
    322. 

  322. static gint ett_gtpv2_tra_info_interfaces_lpdn_gw = -1;
    323. 

  323. static gint ett_gtpv2_tra_info_interfaces_lpdn_lenb = -1;
    324. 

  324. static gint ett_gtpv2_tra_info_ne_types = -1;
    325. 

  325. 

  326. 

  327. /* Definition of User Location Info (AVP 22) masks */
    328. 

  328. #define GTPv2_ULI_CGI_MASK			0x01
    329. 

  329. #define GTPv2_ULI_SAI_MASK			0x02
    330. 

  330. #define GTPv2_ULI_RAI_MASK			0x04
    331. 

  331. #define GTPv2_ULI_TAI_MASK			0x08
    332. 

  332. #define GTPv2_ULI_ECGI_MASK			0x10
    333. 

  333. #define GTPv2_ULI_LAI_MASK			0x20
    334. 

  334. 

  335. #define GTPV2_CREATE_SESSION_REQUEST     32
    336. 

  336. #define GTPV2_CREATE_SESSION_RESPONSE    33
    337. 

  337. #define GTPV2_FORWARD_RELOCATION_REQ	133
    338. 

  338. #define GTPV2_FORWARD_CTX_NOTIFICATION	137
    339. 

  339. static void dissect_gtpv2_ie_common(tvbuff_t * tvb, packet_info * pinfo _U_, proto_tree * tree, gint offset, guint8 message_type);
    340. 

  340. 

  341. /*Message Types for GTPv2 (Refer Pg19 29.274) (SB)*/
    342. 

  342. static const value_string gtpv2_message_type_vals[] = {
    343. 

  343.     {0, "Reserved"},
    344. 

  344.     {1, "Echo Request"},
    345. 

  345.     {2, "Echo Response"},
    346. 

  346.     {3, "Version Not Supported Indication"},
    347. 

  347.     /* 4-24 Reserved for S101 interface TS 29.276 */
    348. 

  348.     /* 25-31 Reserved for Sv interface TS 29.280 */
    349. 

  349.     /* SGSN/MME to PGW (S4/S11, S5/S8) */
    350. 

  350.     {32, "Create Session Request"},
    351. 

  351.     {33, "Create Session Response"},
    352. 

  352.     {34, "Modify Bearer Request"},
    353. 

  353.     {35, "Modify Bearer Response"},
    354. 

  354.     {36, "Delete Session Request"},
    355. 

  355.     {37, "Delete Session Response"},
    356. 

  356.     /* SGSN to PGW (S4, S5/S8) */
    357. 

  357.     {38, "Change Notification Request"},
    358. 

  358.     {39, "Change Notification Response"},
    359. 

  359.     /* 40-63 For future use */
    360. 

  360.     /* Messages without explicit response */
    361. 

  361.     {64, "Modify Bearer Command"},                          /* (MME/SGSN to PGW -S11/S4, S5/S8) */
    362. 

  362.     {65, "Modify Bearer Failure Indication"},               /*(PGW to MME/SGSN -S5/S8, S11/S4) */
    363. 

  363.     {66, "Delete Bearer Command"},                          /* (MME to PGW -S11, S5/S8) */
    364. 

  364.     {67, "Delete Bearer Failure Indication"},               /* (PGW to MME -S5/S8, S11) */
    365. 

  365.     {68, "Bearer Resource Command"},                        /* (MME/SGSN to PGW -S11/S4, S5/S8) */
    366. 

  366.     {69, "Bearer Resource Failure Indication"},             /* (PGW to MME/SGSN -S5/S8, S11/S4) */
    367. 

  367.     {70, "Downlink Data Notification Failure Indication"},  /*(SGSN/MME to SGW -S4/S11) */
    368. 

  368.     {71, "Trace Session Activation"},
    369. 

  369.     {72, "Trace Session Deactivation"},
    370. 

  370.     {73, "Stop Paging Indication"},
    371. 

  371.     /* 74-94 For future use */
    372. 

  372.     /* PDN-GW to SGSN/MME (S5/S8, S4/S11) */
    373. 

  373.     {95, "Create Bearer Request"},
    374. 

  374.     {96, "Create Bearer Response"},
    375. 

  375.     {97, "Update Bearer Request"},
    376. 

  376.     {98, "Update Bearer Response"},
    377. 

  377.     {99, "Delete Bearer Request"},
    378. 

  378.     {100, "Delete Bearer Response"},
    379. 

  379.     /* PGW to MME, MME to PGW, SGW to PGW, SGW to MME (S5/S8, S11) */
    380. 

  380.     {101, "Delete PDN Connection Set Request"},
    381. 

  381.     {102, "Delete PDN Connection Set Response"},
    382. 

  382.     /* 103-127 For future use */
    383. 

  383.     /* MME to MME, SGSN to MME, MME to SGSN, SGSN to SGSN (S3/10/S16) */
    384. 

  384.     {128, "Identification Request"},
    385. 

  385.     {129, "Identification Response"},
    386. 

  386.     {130, "Context Request"},
    387. 

  387.     {131, "Context Response"},
    388. 

  388.     {132, "Context Acknowledge"},
    389. 

  389.     {133, "Forward Relocation Request"},
    390. 

  390.     {134, "Forward Relocation Response"},
    391. 

  391.     {135, "Forward Relocation Complete Notification"},
    392. 

  392.     {136, "Forward Relocation Complete Acknowledge"},
    393. 

  393.     {137, "Forward Access Context Notification"},
    394. 

  394.     {138, "Forward Access Context Acknowledge"},
    395. 

  395.     {139, "Relocation Cancel Request"},
    396. 

  396.     {140, "Relocation Cancel Response"},
    397. 

  397.     {141, "Configuration Transfer Tunnel"},
    398. 

  398.     /* 142-148 For future use */
    399. 

  399.     /* SGSN to MME, MME to SGSN (S3)*/
    400. 

  400.     {149, "Detach Notification"},
    401. 

  401.     {150, "Detach Acknowledge"},
    402. 

  402.     {151, "CS Paging Indication"},
    403. 

  403.     {152, "RAN Information Relay"},
    404. 

  404.     {153, "Alert MME Notification"},
    405. 

  405.     {154, "Alert MME Acknowledge"},
    406. 

  406.     {155, "UE Activity Notification"},
    407. 

  407.     {156, "UE Activity Acknowledge"},
    408. 

  408.     /* 157 to 159 For future use */
    409. 

  409.     /* MME to SGW (S11) */
    410. 

  410.     {160, "Create Forwarding Tunnel Request"},
    411. 

  411.     {161, "Create Forwarding Tunnel Response"},
    412. 

  412.     {162, "Suspend Notification"},
    413. 

  413.     {163, "Suspend Acknowledge"},
    414. 

  414.     {164, "Resume Notification"},
    415. 

  415.     {165, "Resume Acknowledge"},
    416. 

  416.     {166, "Create Indirect Data Forwarding Tunnel Request"},
    417. 

  417.     {167, "Create Indirect Data Forwarding Tunnel Response"},
    418. 

  418.     {168, "Delete Indirect Data Forwarding Tunnel Request"},
    419. 

  419.     {169, "Delete Indirect Data Forwarding Tunnel Response"},
    420. 

  420.     {170, "Release Access Bearers Request"},
    421. 

  421.     {171, "Release Access Bearers Response"},
    422. 

  422.     /* 172-175 For future use */
    423. 

  423.     /* SGW to SGSN/MME (S4/S11) */
    424. 

  424.     {176, "Downlink Data Notification"},
    425. 

  425.     {177, "Downlink Data Notification Acknowledgement"},
    426. 

  426.     /* SGW to SGSN (S4) */
    427. 

  427.     {178, "Update Bearer Complete"},
    428. 

  428.     /* 179-191 For future use */
    429. 

  429.     /* Other */
    430. 

  430.     {200, "Update PDN Connection Set Request"},
    431. 

  431.     {201, "Update PDN Connection Set Response"},
    432. 

  432. 	/* 202 to 230 For future use */
    433. 

  433. 	/* MBMS GW to MME/SGSN (Sm/Sn) */
    434. 

  434.     {231, "MBMS Session Start Request"},
    435. 

  435.     {323, "MBMS Session Start Response"},
    436. 

  436.     {233, "MBMS Session Update Request"},
    437. 

  437.     {234, "MBMS Session Update Response"},
    438. 

  438.     {235, "MBMS Session Stop Request"},
    439. 

  439.     {236, "MBMS Session Stop Response"},
    440. 

  440. 	/* 237 to 239 For future use */
    441. 

  441. /* 240-255 Reserved for GTP-U TS 29.281 [13] */
    442. 

  442.     {0, NULL}
    443. 

  443. };
    444. 

  444. 

  445. #define GTPV2_IE_RESERVED        0
    446. 

  446. #define GTPV2_IE_IMSI            1
    447. 

  447. #define GTPV2_IE_CAUSE           2
    448. 

  448. #define GTPV2_REC_REST_CNT       3
    449. 

  449. #define GTPV2_APN               71
    450. 

  450. #define GTPV2_AMBR              72
    451. 

  451. #define GTPV2_EBI               73
    452. 

  452. #define GTPV2_IP_ADDRESS        74
    453. 

  453. #define GTPV2_MEI               75
    454. 

  454. #define GTPV2_IE_MSISDN         76
    455. 

  455. #define GTPV2_INDICATION        77
    456. 

  456. #define GTPV2_PCO               78
    457. 

  457. #define GTPV2_PAA               79
    458. 

  458. #define GTPV2_BEARER_QOS        80
    459. 

  459. #define GTPV2_IE_FLOW_QOS       81
    460. 

  460. #define GTPV2_IE_RAT_TYPE       82
    461. 

  461. #define GTPV2_IE_SERV_NET       83
    462. 

  462. #define GTPV2_IE_BEARER_TFT     84
    463. 

  463. #define GTPV2_IE_TAD            85
    464. 

  464. #define GTPV2_IE_ULI            86
    465. 

  465. #define GTPV2_IE_F_TEID         87
    466. 

  466. #define GTPV2_IE_TMSI           88
    467. 

  467. #define GTPV2_IE_GLOBAL_CNID    89
    468. 

  468. #define GTPV2_IE_S103PDF                 90
    469. 

  469. #define GTPV2_IE_S1UDF                   91
    470. 

  470. #define GTPV2_IE_DEL_VAL                 92
    471. 

  471. #define GTPV2_IE_BEARER_CTX              93
    472. 

  472. #define GTPV2_IE_CHAR_ID                 94
    473. 

  473. #define GTPV2_IE_CHAR_CHAR               95
    474. 

  474. #define GTPV2_IE_TRA_INFO		         96
    475. 

  475. #define GTPV2_BEARER_FLAG                97
    476. 

  476. /* define GTPV2_IE_PAGING_CAUSE          98 (void) */
    477. 

  477. #define GTPV2_IE_PDN_TYPE                99
    478. 

  478. #define GTPV2_IE_PTI                    100
    479. 

  479. #define GTPV2_IE_DRX_PARAM              101
    480. 

  480. #define GTPV2_IE_UE_NET_CAPABILITY      102
    481. 

  481. #define GTPV2_IE_MM_CONTEXT_GSM_T       103
    482. 

  482. #define GTPV2_IE_MM_CONTEXT_UTMS_CQ     104
    483. 

  483. #define GTPV2_IE_MM_CONTEXT_GSM_CQ      105
    484. 

  484. #define GTPV2_IE_MM_CONTEXT_UTMS_Q      106
    485. 

  485. #define GTPV2_IE_MM_CONTEXT_EPS_QQ      107
    486. 

  486. #define GTPV2_IE_MM_CONTEXT_UTMS_QQ     108
    487. 

  487. #define GTPV2_IE_PDN_CONNECTION         109
    488. 

  488. #define GTPV2_IE_PDN_NUMBERS            110
    489. 

  489. #define GTPV2_IE_P_TMSI                 111
    490. 

  490. #define GTPV2_IE_P_TMSI_SIG             112
    491. 

  491. #define GTPV2_IE_HOP_COUNTER            113
    492. 

  492. #define GTPV2_IE_UE_TIME_ZONE           114
    493. 

  493. #define GTPV2_IE_TRACE_REFERENCE        115
    494. 

  494. #define GTPV2_IE_COMPLETE_REQUEST_MSG   116
    495. 

  495. #define GTPV2_IE_GUTI                   117
    496. 

  496. #define GTPV2_IE_F_CONTAINER	        118
    497. 

  497. #define GTPV2_IE_F_CAUSE                119
    498. 

  498. #define GTPV2_IE_SEL_PLMN_ID            120
    499. 

  499. #define GTPV2_IE_TARGET_ID              121
    500. 

  500. /* GTPV2_IE_NSAPI                       122 */
    501. 

  501. #define GTPV2_IE_PKT_FLOW_ID            123
    502. 

  502. #define GTPV2_IE_RAB_CONTEXT            124
    503. 

  503. #define GTPV2_IE_S_RNC_PDCP_CTX_INFO    125
    504. 

  504. #define GTPV2_IE_UDP_S_PORT_NR          126
    505. 

  505. #define GTPV2_IE_APN_RESTRICTION        127
    506. 

  506. #define GTPV2_IE_SEL_MODE               128
    507. 

  507. #define GTPV2_IE_SOURCE_IDENT           129
    508. 

  508. #define GTPV2_IE_BEARER_CONTROL_MODE    130
    509. 

  509. #define GTPV2_IE_CNG_REP_ACT            131
    510. 

  510. #define GTPV2_IE_FQ_CSID                132
    511. 

  511. #define GTPV2_IE_CHANNEL_NEEDED         133
    512. 

  512. #define GTPV2_IE_EMLPP_PRI              134
    513. 

  513. #define GTPV2_IE_NODE_TYPE              135
    514. 

  514. #define GTPV2_IE_FQDN                   136
    515. 

  515. #define GTPV2_IE_TI                     137
    516. 

  516. #define GTPV2_IE_PRIVATE_EXT            255
    517. 

  517. 

  518. #define SPARE                               0X0
    519. 

  519. #define CREATE_NEW_TFT                      0X20
    520. 

  520. #define DELETE_TFT                          0X40
    521. 

  521. #define ADD_PACKET_FILTERS_TFT              0X60
    522. 

  522. #define REPLACE_PACKET_FILTERS_TFT          0X80
    523. 

  523. #define DELETE_PACKET_FILTERS_TFT           0XA0
    524. 

  524. #define NO_TFT_OPERATION                    0XC0
    525. 

  525. #define RESERVED                            0XE0
    526. 

  526. 

  527. 

  528. /* Table 8.1-1: Information Element types for GTPv2 */
    529. 

  529. static const value_string gtpv2_element_type_vals[] = {
    530. 

  530.     {0, "Reserved"},
    531. 

  531.     {1, "International Mobile Subscriber Identity (IMSI)"},                     /* Variable Length / 8.3 */
    532. 

  532.     {2, "Cause"},                                                               /* Variable Length / 8.4 */
    533. 

  533.     {3, "Recovery (Restart Counter)"},                                          /* Variable Length / 8.5 */
    534. 

  534.     /* 4-50 Reserved for S101 interface Extendable / See 3GPP TS 29.276 [14] */
    535. 

  535.     /* 51-70 Reserved for Sv interface Extendable / See 3GPP TS 29.280 [15] */
    536. 

  536.     {71, "Access Point Name (APN)"},                                            /* Variable Length / 8.6 */
    537. 

  537.     {72, "Aggregate Maximum Bit Rate (AMBR)"},                                  /* Fixed Length / 8.7 */
    538. 

  538.     {73, "EPS Bearer ID (EBI)"},                                                /* Extendable / 8.8 */
    539. 

  539.     {74, "IP Address"},                                                         /* Extendable / 8.9 */
    540. 

  540.     {75, "Mobile Equipment Identity (MEI)"},                                    /* Variable Length / 8.10 */
    541. 

  541.     {76, "MSISDN"},                                                             /* Variable Length / 8.11 */
    542. 

  542.     {77, "Indication"},                                                         /* Extendable / 8.12 */
    543. 

  543.     {78, "Protocol Configuration Options (PCO)"},                               /* Variable Length / 8.13 */
    544. 

  544.     {79, "PDN Address Allocation (PAA)"},                                       /* Variable Length / 8.14 */
    545. 

  545.     {80, "Bearer Level Quality of Service (Bearer QoS)"},                       /* Variable Length / 8.15 */
    546. 

  546.     {81, "Flow Quality of Service (Flow QoS)"},                                 /* Extendable / 8.16 */
    547. 

  547.     {82, "RAT Type"},                                                           /* Extendable / 8.17 */
    548. 

  548.     {83, "Serving Network"},                                                    /* Extendable / 8.18 */
    549. 

  549.     {84, "EPS Bearer Level Traffic Flow Template (Bearer TFT)"},                /* Variable Length / 8.19 */
    550. 

  550.     {85, "Traffic Aggregation Description (TAD)"},                              /* Variable Length / 8.20 */
    551. 

  551.     {86, "User Location Info (ULI)"},                                           /* Variable Length / 8.21 */
    552. 

  552.     {87, "Fully Qualified Tunnel Endpoint Identifier (F-TEID)"},                /* Extendable / 8.22 */
    553. 

  553.     {88, "TMSI"},                                                               /* Variable Length / 8.23 */
    554. 

  554.     {89, "Global CN-Id"},                                                       /* Variable Length / 8.24 */
    555. 

  555.     {90, "S103 PDN Data Forwarding Info (S103PDF)"},                            /* Variable Length / 8.25 */
    556. 

  556.     {91, "S1-U Data Forwarding Info (S1UDF)"},                                  /* Variable Length/ 8.26 */
    557. 

  557.     {92, "Delay Value"},                                                        /* Extendable / 8.27 */
    558. 

  558.     {93, "Bearer Context"},                                                     /* Extendable / 8.28 */
    559. 

  559.     {94, "Charging ID"},                                                        /* Extendable / 8.29 */
    560. 

  560.     {95, "Charging Characteristics"},                                           /* Extendable / 8.30 */
    561. 

  561.     {96, "Trace Information"},                                                  /* Extendable / 8.31 */
    562. 

  562.     {97, "Bearer Flags"},                                                       /* Extendable / 8.32 */
    563. 

  563.     {98, "Paging Cause"},                                                       /* Variable Length / 8.33 */
    564. 

  564.     {99, "PDN Type"},                                                           /* Extendable / 8.34 */
    565. 

  565.     {100, "Procedure Transaction ID"},                                          /* Extendable / 8.35 */
    566. 

  566.     {101, "DRX Parameter"},                                                     /* Variable Length/ 8.36 */
    567. 

  567.     {102, "UE Network Capability"},                                             /* Variable Length / 8.37 */
    568. 

  568.     {103, "MM Context (GSM Key and Triplets)"},                                 /* Variable Length / 8.38 */
    569. 

  569.     {104, "MM Context (UMTS Key, Used Cipher and Quintuplets)"},                /* Variable Length / 8.38 */
    570. 

  570.     {105, "MM Context (GSM Key, Used Cipher and Quintuplets)"},                 /* Variable Length / 8.38 */
    571. 

  571.     {106, "MM Context (UMTS Key and Quintuplets)"},                             /* Variable Length / 8.38 */
    572. 

  572.     {107, "MM Context (EPS Security Context, Quadruplets and Quintuplets)"},    /* Variable Length / 8.38 */
    573. 

  573.     {108, "MM Context (UMTS Key, Quadruplets and Quintuplets)"},                /* Variable Length / 8.38 */
    574. 

  574.     {109, "PDN Connection"},                                                    /* Extendable / 8.39 */
    575. 

  575.     {110, "PDU Numbers"},                                                       /* Extendable / 8.40 */
    576. 

  576.     {111, "P-TMSI"},                                                            /* Variable Length / 8.41 */
    577. 

  577.     {112, "P-TMSI Signature"},                                                  /* Variable Length / 8.42 */
    578. 

  578.     {113, "Hop Counter"},                                                       /* Extendable / 8.43 */
    579. 

  579.     {114, "UE Time Zone"},                                                      /* Variable Length / 8.44 */
    580. 

  580.     {115, "Trace Reference"},                                                   /* Fixed Length / 8.45 */
    581. 

  581.     {116, "Complete Request Message"},                                          /* Variable Length / 8.46 */
    582. 

  582.     {117, "GUTI"},                                                              /* Variable Length / 8.47 */
    583. 

  583.     {118, "F-Container"},                                                       /* Variable Length / 8.48 */
    584. 

  584.     {119, "F-Cause"},                                                           /* Variable Length / 8.49 */
    585. 

  585.     {120, "Selected PLMN ID"},                                                  /* Variable Length / 8.50 */
    586. 

  586.     {121, "Target Identification"},                                             /* Variable Length / 8.51 */
    587. 

  587.     {122, "NSAPI"},                                                             /* Extendable / 8.52 */
    588. 

  588.     {123, "Packet Flow ID"},                                                    /* Variable Length / 8.53 */
    589. 

  589.     {124, "RAB Context"},                                                       /* Fixed Length / 8.54 */
    590. 

  590.     {125, "Source RNC PDCP Context Info"},                                      /* Variable Length / 8.55 */
    591. 

  591.     {126, "UDP Source Port Number"},                                            /* Extendable / 8.56 */
    592. 

  592.     {127, "APN Restriction"},                                                   /* Extendable / 8.57 */
    593. 

  593.     {128, "Selection Mode"},                                                    /* Extendable / 8.58 */
    594. 

  594.     {129, "Source Identification"},                                             /* Variable Length / 8.50 */
    595. 

  595.     {130, "Bearer Control Mode"},                                               /* Extendable / 8.60 */
    596. 

  596.     {131, "Change Reporting Action"},                                           /* Variable Length / 8.61 */
    597. 

  597.     {132, "Fully Qualified PDN Connection Set Identifier (FQ-CSID)"},           /* Variable Length / 8.62 */
    598. 

  598.     {133, "Channel needed"},                                                    /* Extendable / 8.63 */
    599. 

  599.     {134, "eMLPP Priority"},                                                    /* Extendable / 8.64 */
    600. 

  600.     {135, "Node Type"},                                                         /* Extendable / 8.65 */
    601. 

  601.     {136, "Fully Qualified Domain Name (FQDN)"},                                /* Variable Length / 8.66 */
    602. 

  602.     {137, "Transaction Identifier (TI)"},                                       /* Variable Length / 8.68 */
    603. 

  603.     {138, "MBMS Session"},							/* Duration Extendable / 8.69 */
    604. 

  604.     {139, "MBMS Service Area"},							/* Extendable / 8.70 */
    605. 

  605.     {140, "MBMS Session Identifier"},						/* Extendable / 8.71 */
    606. 

  606.     {141, "MBMS Flow Identifier"},						/* Extendable / 8.72 */
    607. 

  607.     {142, "MBMS IP Multicast Distribution"},					/* Extendable / 8.73 */
    608. 

  608.     {143, "MBMS Distribution Acknowledge"},					/* Extendable / 8.74 */
    609. 

  609.     {144, "RFSP Index"},							/* Fixed Length / 8.77 */
    610. 

  610.     {145, "User CSG Information (UCI)"},					/* Extendable / 8.75 */
    611. 

  611.     {146, "CSG Information Reporting Action"},					/* Extendable / 8.76 */
    612. 

  612.     {147, "CSG ID"},								/* Extendable / 8.78 */
    613. 

  613.     {148, "CSG Membership Indication (CMI)"},					/* Extendable / 8.79 */
    614. 

  614.     {149, "Service indicator"},							/* Fixed Length / 8.80 */
    615. 

  615.     {150, "Detach Type"},							/* Fixed Length / 8.81 */
    616. 

  616.     {151, "Local Distiguished Name (LDN)"},					/* Variable / 8.82 */
    617. 

  617.     {152, "Node Features"},                                                     /* Extendable / 8.83 */
    618. 

  618.     {153, "MBMS Time to Data Transfer"},                                        /* Extendable / 8.84 */
    619. 

  619.     {154, "Throttling"},                                                        /* Extendable / 8.85 */
    620. 

  620.     {155, "Allocation/Retention Priority (ARP)"},                               /* Extendable / 8.86 */
    621. 

  621.     /* 156 to 254 Spare. For future use.  */                                    /* For future use. FFS */
    622. 

  622.     {255, "Private"},                                                           /* Extension Extendable / 8.67 */
    623. 

  623.     {0, NULL}
    624. 

  624. };
    625. 

  625. 

  626. /* Code to dissect IE's */
    627. 

  627. 

  628. static void
    629. 

  629. dissect_gtpv2_unknown(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    630. 

  630. {
    631. 

  631.    proto_item *expert_item;
    632. 

  632. 

  633.    expert_item = proto_tree_add_text(tree, tvb, 0, length, "IE data not dissected yet");
    634. 

  634.    expert_add_info_format(pinfo, expert_item, PI_PROTOCOL, PI_NOTE, "IE data not dissected yet");
    635. 

  635.    PROTO_ITEM_SET_GENERATED(expert_item);
    636. 

  636. 

  637. }
    638. 

  638. 

  639. /*
    640. 

  640.  * 8.3 International Mobile Subscriber Identity (IMSI)
    641. 

  641.  *
    642. 

  642.  * IMSI is defined in 3GPP TS 23.003
    643. 

  643.  * Editor's note: IMSI coding will be defined in 3GPP TS 24.301
    644. 

  644.  * Editor's note: In the first release of GTPv2 spec (TS 29.274v8.0.0) n = 8.
    645. 

  645.  * That is, the overall length of the IE is 11 octets.
    646. 

  646.  */
    647. 

  647. 

  648. static void
    649. 

  649. dissect_gtpv2_imsi(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    650. 

  650. {
    651. 

  651.     int offset= 0;
    652. 

  652.     const gchar *imsi_str;
    653. 

  653. 

  654.     /* Fetch the BCD encoded digits from tvb low half byte, formating the digits according to
    655. 

  655.      * a default digit set of 0-9 returning "?" for overdecadic digits a pointer to the EP
    656. 

  656.      * allocated string will be returned.
    657. 

  657.      */
    658. 

  658.     imsi_str = tvb_bcd_dig_to_ep_str( tvb, offset, length, NULL, FALSE);
    659. 

  659. 

  660.     proto_tree_add_string(tree, hf_gtpv2_imsi, tvb, offset, length, imsi_str);
    661. 

  661.     proto_item_append_text(item, "%s", imsi_str);
    662. 

  662. 

  663. }
    664. 

  664. 

  665. /*
    666. 

  666.  * 8.4 Cause
    667. 

  667.  */
    668. 

  668. 

  669. /* Table 8.4-1: Cause values */
    670. 

  670. static const value_string gtpv2_cause_vals[] = {
    671. 

  671.     {0, "Reserved"},
    672. 

  672.     /* Request */
    673. 

  673.     {1, "Paging Cause"},
    674. 

  674.     {2, "Local Detach"},
    675. 

  675.     {3, "Complete Detach"},
    676. 

  676.     {4, "RAT changed from 3GPP to Non-3GPP"},
    677. 

  677.     {5, "ISR is activated"},
    678. 

  678.     {6, "Error Indication received from RNC/eNodeB"},
    679. 

  679.     {7, "IMSI Detach Only"},
    680. 

  680.     {8, "Reactivation Requested"},
    681. 

  681.     {9, "PDN reconnection to this APN disallowed"},
    682. 

  682.     {10, "Access changed from Non-3GPP to 3GPP"},
    683. 

  683.     /* 11-15 Spare. This value range is reserved for Cause values in a request message */
    684. 

  684.     {11, "Spare"},
    685. 

  685.     {12, "Spare"},
    686. 

  686.     {13, "Spare"},
    687. 

  687.     {14, "Spare"},
    688. 

  688.     {15, "Spare"},
    689. 

  689.     /* Acceptance Response */
    690. 

  690.     {16, "Request accepted"},
    691. 

  691.     {17, "Request accepted partially"},
    692. 

  692.     {18, "New PDN type due to network preference"},
    693. 

  693.     {19, "New PDN type due to single address bearer only"},
    694. 

  694.     /* 20-63 Spare. This value range is reserved for Cause values in acceptance response message */
    695. 

  695.     /* Rejection Response */
    696. 

  696.     {20, "Spare"},
    697. 

  697.     {21, "Spare"},
    698. 

  698.     {22, "Spare"},
    699. 

  699.     {23, "Spare"},
    700. 

  700.     {24, "Spare"},
    701. 

  701.     {25, "Spare"},
    702. 

  702.     {26, "Spare"},
    703. 

  703.     {27, "Spare"},
    704. 

  704.     {28, "Spare"},
    705. 

  705.     {29, "Spare"},
    706. 

  706.     {30, "Spare"},
    707. 

  707.     {31, "Spare"},
    708. 

  708.     {32, "Spare"},
    709. 

  709.     {33, "Spare"},
    710. 

  710.     {34, "Spare"},
    711. 

  711.     {35, "Spare"},
    712. 

  712.     {36, "Spare"},
    713. 

  713.     {37, "Spare"},
    714. 

  714.     {38, "Spare"},
    715. 

  715.     {39, "Spare"},
    716. 

  716.     {40, "Spare"},
    717. 

  717.     {41, "Spare"},
    718. 

  718.     {42, "Spare"},
    719. 

  719.     {43, "Spare"},
    720. 

  720.     {44, "Spare"},
    721. 

  721.     {45, "Spare"},
    722. 

  722.     {46, "Spare"},
    723. 

  723.     {47, "Spare"},
    724. 

  724.     {48, "Spare"},
    725. 

  725.     {49, "Spare"},
    726. 

  726.     {50, "Spare"},
    727. 

  727.     {51, "Spare"},
    728. 

  728.     {52, "Spare"},
    729. 

  729.     {53, "Spare"},
    730. 

  730.     {54, "Spare"},
    731. 

  731.     {55, "Spare"},
    732. 

  732.     {56, "Spare"},
    733. 

  733.     {57, "Spare"},
    734. 

  734.     {58, "Spare"},
    735. 

  735.     {59, "Spare"},
    736. 

  736.     {60, "Spare"},
    737. 

  737.     {61, "Spare"},
    738. 

  738.     {62, "Spare"},
    739. 

  739.     {63, "Spare"},
    740. 

  740. 

  741.     {64, "Context Not Found"},
    742. 

  742.     {65, "Invalid Message Format"},
    743. 

  743.     {66, "Version not supported by next peer"},
    744. 

  744.     {67, "Invalid length"},
    745. 

  745.     {68, "Service not supported"},
    746. 

  746.     {69, "Mandatory IE incorrect"},
    747. 

  747.     {70, "Mandatory IE missing"},
    748. 

  748.     {71, "Optional IE incorrect"},
    749. 

  749.     {72, "System failure"},
    750. 

  750.     {73, "No resources available"},
    751. 

  751.     {74, "Semantic error in the TFT operation"},
    752. 

  752.     {75, "Syntactic error in the TFT operation"},
    753. 

  753.     {76, "Semantic errors in packet filter(s)"},
    754. 

  754.     {77, "Syntactic errors in packet filter(s)"},
    755. 

  755.     {78, "Missing or unknown APN"},
    756. 

  756.     {79, "Unexpected repeated IE"},
    757. 

  757.     {80, "GRE key not found"},
    758. 

  758.     {81, "Reallocation failure"},
    759. 

  759.     {82, "Denied in RAT"},
    760. 

  760.     {83, "Preferred PDN type not supported"},
    761. 

  761.     {84, "All dynamic addresses are occupied"},
    762. 

  762.     {85, "UE context without TFT already activated"},
    763. 

  763.     {86, "Protocol type not supported"},
    764. 

  764.     {87, "UE not responding"},
    765. 

  765.     {88, "UE refuses"},
    766. 

  766.     {89, "Service denied"},
    767. 

  767.     {90, "Unable to page UE"},
    768. 

  768.     {91, "No memory available"},
    769. 

  769.     {92, "User authentication failed"},
    770. 

  770.     {93, "APN access denied - no subscription"},
    771. 

  771.     {94, "Request rejected"},
    772. 

  772.     {95, "P-TMSI Signature mismatch"},
    773. 

  773.     {96, "IMSI not known"},
    774. 

  774.     {97, "Semantic error in the TAD operation"},
    775. 

  775.     {98, "Syntactic error in the TAD operation"},
    776. 

  776.     {99, "Reserved Message Value Received"},
    777. 

  777.     {100, "PGW not responding"},
    778. 

  778.     {101, "Collision with network initiated request"},
    779. 

  779.     {102, "Unable to page UE due to Suspension"},
    780. 

  780.     {103, "Conditional IE missing"},
    781. 

  781.     {104, "APN Restriction type Incompatible with currently active PDN connection"},
    782. 

  782.     {105, "Invalid overall length of the triggered response message and a piggybacked initial message"},
    783. 

  783.     {106, "Data forwarding not supported"},
    784. 

  784.     {107, "Invalid reply from remote peer"},
    785. 

  785.     {108, "Fallback to GTPv1"},
    786. 

  786.     {109, "Invalid peer"},
    787. 

  787.     {110, "Temporarily rejected due to handover procedure in progress"},
    788. 

  788.     {111, "Modifications not limited to S1-U bearers"},
    789. 

  789.     {112, "Request rejected for a PMIPv6 reason "},
    790. 

  790.     /* 113-239 Spare. For future use in a triggered/response message  */
    791. 

  791.     /* 240-255 Spare. For future use in an initial/request message */
    792. 

  792.     {0, NULL}
    793. 

  793. };
    794. 

  794. 

  795. static value_string_ext gtpv2_cause_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_cause_vals);
    796. 

  796. 

  797. /* Table 8.4-1: CS (Cause Source) */
    798. 

  798. static const true_false_string gtpv2_cause_cs = {
    799. 

  799. 	"Originated by remote node",
    800. 

  800. 	"Originated by node sending the message",
    801. 

  801. };
    802. 

  802. 

  803. static void
    804. 

  804. dissect_gtpv2_cause(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    805. 

  805. {
    806. 

  806.     int     offset = 0;
    807. 

  807.     guint8  tmp;
    808. 

  808. 

  809.     /* Cause value octet 5 */
    810. 

  810.     tmp = tvb_get_guint8(tvb, offset);
    811. 

  811.     proto_tree_add_item(tree, hf_gtpv2_cause, tvb, offset, 1, FALSE);
    812. 

  812. 

  813.     /* Add Cause to ie_tree */
    814. 

  814.     proto_item_append_text(item, "%s (%u)", val_to_str_ext_const(tmp, &gtpv2_cause_vals_ext, "Unknown"),tmp);
    815. 

  815.     offset++;
    816. 

  816. 

  817.     /* Octet 6 Spare PCE BCE CS */
    818. 

  818.     proto_tree_add_bits_item(tree, hf_gtpv2_spare_bits, tvb, offset<<3, 5, FALSE);
    819. 

  819.     proto_tree_add_item(tree, hf_gtpv2_cause_pce, tvb, offset, 1, FALSE);
    820. 

  820.     proto_tree_add_item(tree, hf_gtpv2_cause_bce, tvb, offset, 1, FALSE);
    821. 

  821.     proto_tree_add_item(tree, hf_gtpv2_cause_cs, tvb, offset, 1, FALSE);
    822. 

  822.     offset++;
    823. 

  823. 

  824.     /* If n = 2, a = 0 and the Cause IE shall be 6 octets long.
    825. 

  825.      * Therefore, octets "a(n+1) to a(n+4)" will not be present.
    826. 

  826.      * If n = 6, a = 1 and the Cause IE will be 10 octets long.
    827. 

  827.      */
    828. 

  828.     if ( length == 2 ) {
    829. 

  829.         return;
    830. 

  830.     }
    831. 

  831. 	/*
    832. 

  832. 	 * If the rejection is due to a mandatory IE or a verifiable conditional IE is faulty
    833. 

  833. 	 * or missing, the offending IE shall be included within an additional field "a(n+1)
    834. 

  834. 	 * to a(n+4)". Only Type and Instance fields of the offending IE that caused the
    835. 

  835. 	 * rejection have a meaning. The length in the Octet 8-9 and spare bits in the Octet 10
    836. 

  836. 	 * shall be set to "0". In this case, the value of "n" shall be "6".
    837. 

  837. 	 * Otherwise, the value of "n" is equal to "2".
    838. 

  838. 	 */
    839. 

  839. 

  840.     /* Type of the offending IE */
    841. 

  841. 	proto_tree_add_item(tree, hf_gtpv2_cause_off_ie_t, tvb, offset, 1, FALSE);
    842. 

  842.     offset++;
    843. 

  843. 

  844.     /* Length */
    845. 

  845.     proto_tree_add_item(tree, hf_gtpv2_ie_len, tvb, offset, 2, FALSE);
    846. 

  846.     offset+=2;
    847. 

  847.     /* a(n+4) Spare Instance */
    848. 

  848.     proto_tree_add_bits_item(tree, hf_gtpv2_spare_half_octet, tvb, offset>>3, 4, FALSE);
    849. 

  849.     proto_tree_add_item(tree, hf_gtpv2_instance, tvb, offset, 1, FALSE);
    850. 

  850.     offset++;
    851. 

  851. 

  852. }
    853. 

  853. 

  854. /*
    855. 

  855.  * 8.5 Recovery (Restart Counter)
    856. 

  856.  */
    857. 

  857. static void
    858. 

  858. dissect_gtpv2_recovery(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    859. 

  859. {
    860. 

  860.     int     offset = 0;
    861. 

  861.     guint8  recovery;
    862. 

  862. 

  863.     recovery = tvb_get_guint8(tvb, offset);
    864. 

  864.     proto_tree_add_item(tree, hf_gtpv2_rec, tvb, offset, 1, FALSE);
    865. 

  865.     proto_item_append_text(item, "%u", recovery);
    866. 

  866. 

  867. }
    868. 

  868. 

  869. /*
    870. 

  870.  * 8.6 Access Point Name (APN)
    871. 

  871.  * The encoding the APN field follows 3GPP TS 23.003 [2] subclause 9.1.
    872. 

  872.  * The content of the APN field shall be the full APN with both the APN Network Identifier
    873. 

  873.  * and APN Operator Identifier being present as specified in 3GPP TS 23.003 [2]
    874. 

  874.  * 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.
    875. 

  875.  */
    876. 

  876. static void
    877. 

  877. dissect_gtpv2_apn(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_,  guint8 instance _U_)
    878. 

  878. {
    879. 

  879.     int offset = 0;
    880. 

  880.     guint8 *apn = NULL;
    881. 

  881.     int name_len, tmp;
    882. 

  882. 

  883.     if (length > 0) {
    884. 

  884.         name_len = tvb_get_guint8(tvb, offset);
    885. 

  885. 

  886.         if (name_len < 0x20) {
    887. 

  887.             apn = tvb_get_ephemeral_string(tvb, offset + 1, length - 1);
    888. 

  888.             for (;;) {
    889. 

  889.                 if (name_len >= length - 1)
    890. 

  890.                 break;
    891. 

  891.                 tmp = name_len;
    892. 

  892.                 name_len = name_len + apn[tmp] + 1;
    893. 

  893.                 apn[tmp] = '.';
    894. 

  894.             }
    895. 

  895.         } else{
    896. 

  896.             apn = tvb_get_ephemeral_string(tvb, offset, length);
    897. 

  897.         }
    898. 

  898.         proto_tree_add_string(tree, hf_gtpv2_apn, tvb, offset, length, apn);
    899. 

  899.     }
    900. 

  900. 

  901.     if (apn)
    902. 

  902. 	proto_item_append_text(item, "%s", apn);
    903. 

  903. 

  904. }
    905. 

  905. 

  906. /*
    907. 

  907.  * 8.7 Aggregate Maximum Bit Rate (AMBR)
    908. 

  908.  */
    909. 

  909. 

  910. static void
    911. 

  911. dissect_gtpv2_ambr(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    912. 

  912. {
    913. 

  913.     int offset = 0;
    914. 

  914. 

  915.     proto_tree_add_item(tree, hf_gtpv2_ambr_up, tvb, offset, 4, FALSE);
    916. 

  916.     offset= offset + 4;
    917. 

  917.     proto_tree_add_item(tree, hf_gtpv2_ambr_down, tvb, offset, 4, FALSE);
    918. 

  918. }
    919. 

  919. 

  920. /*
    921. 

  921.  * 8.8 EPS Bearer ID (EBI)
    922. 

  922.  */
    923. 

  923. static void
    924. 

  924. dissect_gtpv2_ebi(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    925. 

  925. {
    926. 

  926. 

  927.     int offset = 0;
    928. 

  928.     guint8       ebi;
    929. 

  929. 

  930.     /* Spare (all bits set to 0) B8 - B5*/
    931. 

  931.     proto_tree_add_bits_item(tree, hf_gtpv2_spare_bits, tvb, offset, 4, FALSE);
    932. 

  932.     /* EPS Bearer ID (EBI) B4 - B1 */
    933. 

  933.     ebi = tvb_get_guint8(tvb, offset);
    934. 

  934.     proto_tree_add_item(tree, hf_gtpv2_ebi, tvb, offset, 1, FALSE);
    935. 

  935.     proto_item_append_text(item, "%u", ebi);
    936. 

  936. 

  937. }
    938. 

  938. /*
    939. 

  939.  * 8.9 IP Address
    940. 

  940.  */
    941. 

  941. static void
    942. 

  942. dissect_gtpv2_ip_address(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    943. 

  943. {
    944. 

  944.     int offset = 0;
    945. 

  945.     struct e_in6_addr ipv6_addr;
    946. 

  946. 

  947.     if (length==4)
    948. 

  948.     {
    949. 

  949.         proto_tree_add_item(tree, hf_gtpv2_ip_address_ipv4, tvb, offset, length, FALSE);
    950. 

  950. 	    proto_item_append_text(item, "IPv4 %s", tvb_ip_to_str(tvb, offset));
    951. 

  951.     }
    952. 

  952.     else if (length==16)
    953. 

  953.     {
    954. 

  954.         proto_tree_add_item(tree, hf_gtpv2_ip_address_ipv6, tvb, offset, length, FALSE);
    955. 

  955. 	tvb_get_ipv6(tvb, offset, &ipv6_addr);
    956. 

  956. 	proto_item_append_text(item, "IPv6 %s", ip6_to_str(&ipv6_addr));
    957. 

  957.     }
    958. 

  958. }
    959. 

  959. /*
    960. 

  960.  * 8.10 Mobile Equipment Identity (MEI)
    961. 

  961.  * The ME Identity field contains either the IMEI or the IMEISV
    962. 

  962.  * as defined in clause 6.2 of 3GPP TS 23.003 [2]. It is encoded
    963. 

  963.  * as specified in clause 7.7.53 of 3GPP TS 29.060 [4], beginning
    964. 

  964.  * with octet 4 of Figure 7.7.53.1. The IMEI(SV) digits are encoded
    965. 

  965.  * using BCD coding where IMEI is 15 BCD digits and IMEISV is 16 BCD
    966. 

  966.  * digits. For IMEI, bits 5 to 8 of the last octet shall be filled
    967. 

  967.  * with an end mark coded as '1111'.
    968. 

  968.  */
    969. 

  969. 

  970. static void
    971. 

  971. dissect_gtpv2_mei(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    972. 

  972. {
    973. 

  973.     int offset= 0;
    974. 

  974.     const gchar *mei_str;
    975. 

  975. 

  976.     /* Fetch the BCD encoded digits from tvb low half byte, formating the digits according to
    977. 

  977.      * a default digit set of 0-9 returning "?" for overdecadic digits a pointer to the EP
    978. 

  978.      * allocated string will be returned.
    979. 

  979.      */
    980. 

  980.     mei_str = tvb_bcd_dig_to_ep_str( tvb, 0, length, NULL, FALSE);
    981. 

  981. 

  982.     proto_tree_add_string(tree, hf_gtpv2_mei, tvb, offset, length, mei_str);
    983. 

  983.     proto_item_append_text(item, "%s", mei_str);
    984. 

  984. }
    985. 

  985. 

  986. /*
    987. 

  987.  * 8.11 MSISDN
    988. 

  988.  *
    989. 

  989.  * MSISDN is defined in 3GPP TS 23.003
    990. 

  990.  * Editor's note: MSISDN coding will be defined in TS 24.301.
    991. 

  991.  */
    992. 

  992. static void
    993. 

  993. dissect_gtpv2_msisdn(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    994. 

  994. {
    995. 

  995.     const char     *digit_str;
    996. 

  996. 

  997. 	/* Octets 5 to (n+4) represent the MSISDN value is in international number format
    998. 

  998. 	 * as described in ITU-T Rec E.164 [25] and 3GPP TS 29.002 [41].
    999. 

  999. 	 * MSISDN value contains only the actual MSISDN number (does not contain the "nature of
    1000. 

  1000. 	 * address indicator" octet, which indicates "international number"
    1001. 

  1001. 	 * as in 3GPP TS 29.002 [41]) and is encoded as TBCD digits, i.e.
    1002. 

  1002. 	 * digits from 0 through 9 are encoded "0000" to "1001".
    1003. 

  1003. 	 * When there is an odd number of digits, bits 8 to 5 of the last octet are encoded with
    1004. 

  1004. 	 * the filler "1111".
    1005. 

  1005. 	 */
    1006. 

  1006.     dissect_e164_cc(tvb, tree, 0, TRUE);
    1007. 

  1007.     /* Fetch the BCD encoded digits from tvb low half byte, formating the digits according to
    1008. 

  1008.      * a default digit set of 0-9 returning "?" for overdecadic digits a pointer to the EP
    1009. 

  1009.      * allocated string will be returned.
    1010. 

  1010.      */
    1011. 

  1011.     digit_str = tvb_bcd_dig_to_ep_str( tvb, 0, length, NULL, FALSE);
    1012. 

  1012. 

  1013.     proto_tree_add_string(tree, hf_gtpv2_address_digits, tvb, 0, length, digit_str);
    1014. 

  1014.     proto_item_append_text(item, "%s", digit_str);
    1015. 

  1015. }
    1016. 

  1016. 

  1017. /*
    1018. 

  1018.  * 8.12 Indication
    1019. 

  1019.  */
    1020. 

  1020. static void
    1021. 

  1021. dissect_gtpv2_ind(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_,  guint8 instance _U_)
    1022. 

  1022. {
    1023. 

  1023.     int offset = 0;
    1024. 

  1024. 	/* Octet 5 DAF DTF HI DFI OI ISRSI ISRAI SGWCI */
    1025. 

  1025.     proto_tree_add_item(tree, hf_gtpv2_daf,         tvb, offset, 1, FALSE);
    1026. 

  1026.     proto_tree_add_item(tree, hf_gtpv2_dtf,         tvb, offset, 1, FALSE);
    1027. 

  1027.     proto_tree_add_item(tree, hf_gtpv2_hi,          tvb, offset, 1, FALSE);
    1028. 

  1028.     proto_tree_add_item(tree, hf_gtpv2_dfi,         tvb, offset, 1, FALSE);
    1029. 

  1029.     proto_tree_add_item(tree, hf_gtpv2_oi,          tvb, offset, 1, FALSE);
    1030. 

  1030.     proto_tree_add_item(tree, hf_gtpv2_isrsi,       tvb, offset, 1, FALSE);
    1031. 

  1031.     proto_tree_add_item(tree, hf_gtpv2_israi,       tvb, offset, 1, FALSE);
    1032. 

  1032.     proto_tree_add_item(tree, hf_gtpv2_sgwci,       tvb, offset, 1, FALSE);
    1033. 

  1033. 

  1034.     if(length==1) {
    1035. 

  1035.         proto_tree_add_text(tree, tvb, 0, length, "Older version?, should be 2 octets in 8.0.0");
    1036. 

  1036.         return;
    1037. 

  1037.     }
    1038. 

  1038. 

  1039.     offset++;
    1040. 

  1040. 

  1041. 	/* Octet 6 SQCI UIMSI CFSI CRSI P PT SI MSV
    1042. 

  1042. 	 * 3GPP TS 29.274 version 9.4.0 Release 9
    1043. 

  1043. 	 */
    1044. 

  1044.     proto_tree_add_item(tree, hf_gtpv2_sqci,          tvb, offset, 1, FALSE);
    1045. 

  1045.     proto_tree_add_item(tree, hf_gtpv2_uimsi,          tvb, offset, 1, FALSE);
    1046. 

  1046.     proto_tree_add_item(tree, hf_gtpv2_cfsi,          tvb, offset, 1, FALSE);
    1047. 

  1047.     proto_tree_add_item(tree, hf_gtpv2_crsi,          tvb, offset, 1, FALSE);
    1048. 

  1048. 

  1049.     proto_tree_add_item(tree, hf_gtpv2_ps,          tvb, offset, 1, FALSE);
    1050. 

  1050.     proto_tree_add_item(tree, hf_gtpv2_pt,          tvb, offset, 1, FALSE);
    1051. 

  1051.     proto_tree_add_item(tree, hf_gtpv2_si,          tvb, offset, 1, FALSE);
    1052. 

  1052.     proto_tree_add_item(tree, hf_gtpv2_msv,         tvb, offset, 1, FALSE);
    1053. 

  1053.     offset++;
    1054. 

  1054. 

  1055. 	if(length==2){
    1056. 

  1056. 		return;
    1057. 

  1057. 	}
    1058. 

  1058. 	/* Only present in version 9 and higher */
    1059. 

  1059. 	/* Octet 7 Spare Spare Spare Spare Spare Spare Spare CCRSI */
    1060. 

  1060.     proto_tree_add_item(tree, hf_gtpv2_ccrsi,         tvb, offset, 1, FALSE);
    1061. 

  1061. 

  1062. }
    1063. 

  1063. 

  1064. /*
    1065. 

  1065.  * 8.13 Protocol Configuration Options (PCO)
    1066. 

  1066.  * Protocol Configuration Options (PCO) is transferred via GTP tunnels. The sending entity copies the value part of the
    1067. 

  1067.  * 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
    1068. 

  1068.  * as per clause 10.5.6.3 of 3GPP TS 24.008 [5], starting with octet 3.
    1069. 

  1069.  * Dissected in packet-gsm_a_gm.c
    1070. 

  1070.  */
    1071. 

  1071. static void
    1072. 

  1072. dissect_gtpv2_pco(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    1073. 

  1073. {
    1074. 

  1074.     switch(message_type){
    1075. 

  1075. 	case GTPV2_CREATE_SESSION_REQUEST:
    1076. 

  1076. 	    /* PCO options as MS to network direction */
    1077. 

  1077. 	    pinfo->link_dir = P2P_DIR_UL;
    1078. 

  1078. 	    break;
    1079. 

  1079. 	case GTPV2_CREATE_SESSION_RESPONSE:
    1080. 

  1080. 	    /* PCO options as Network to MS direction: */
    1081. 

  1081. 	    pinfo->link_dir = P2P_DIR_DL;
    1082. 

  1082. 	    break;
    1083. 

  1083. 	default:
    1084. 

  1084. 	    break;
    1085. 

  1085.     }
    1086. 

  1086.     de_sm_pco(tvb, tree, pinfo, 0, length, NULL, 0);
    1087. 

  1087. }
    1088. 

  1088. 

  1089. /*
    1090. 

  1090.  * 8.14 PDN Address Allocation (PAA)
    1091. 

  1091.  */
    1092. 

  1092. 

  1093. static const value_string gtpv2_pdn_type_vals[] = {
    1094. 

  1094.     {1, "IPv4"},
    1095. 

  1095.     {2, "IPv6"},
    1096. 

  1096.     {3, "IPv4/IPv6"},
    1097. 

  1097.     {0, NULL}
    1098. 

  1098. };
    1099. 

  1099. 

  1100. static void
    1101. 

  1101. dissect_gtpv2_paa(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
    1102. 

  1102. {
    1103. 

  1103.     int offset = 0;
    1104. 

  1104.     guint8 pdn_type;
    1105. 

  1105.     pdn_type  = tvb_get_guint8(tvb, offset);
    1106. 

  1106.     proto_tree_add_item(tree, hf_gtpv2_pdn_type, tvb, offset, 1, FALSE);
    1107. 

  1107.     offset++;
    1108. 

  1108.     switch(pdn_type)
    1109. 

  1109.     {
    1110. 

  1110.     case 1:
    1111. 

  1111.         /* IPv4 */
    1112. 

  1112.         proto_tree_add_item(tree, hf_gtpv2_pdn_ipv4, tvb, offset, 4, FALSE);
    1113. 

  1113.         offset+=4;
    1114. 

  1114.         break;
    1115. 

  1115.     case 2:
    1116. 

  1116.         /* IPv6*/
    1117. 

  1117. 		/* If PDN type value indicates IPv6, octet 6 contains the IPv6 Prefix Length.
    1118. 

  1118. 		 * Octets 7 through 22 contain an IPv6 Prefix and Interface Identifier.
    1119. 

  1119. 		 * Bit 8 of octet 7 represents the most significant bit of the IPv6 Prefix
    1120. 

  1120. 		 * and Interface Identifier and bit 1 of octet 22 the least significant bit.
    1121. 

  1121. 		 */
    1122. 

  1122.         proto_tree_add_item(tree, hf_gtpv2_pdn_ipv6_len, tvb, offset, 1, FALSE);
    1123. 

  1123.         offset++;
    1124. 

  1124.         proto_tree_add_item(tree, hf_gtpv2_pdn_ipv6, tvb, offset, 16, FALSE);
    1125. 

  1125.         offset+=16;
    1126. 

  1126.         break;
    1127. 

  1127.     case 3:
    1128. 

  1128.         /* IPv4/IPv6 */
    1129. 

  1129. 		/* If PDN type value indicates IPv4v6, octet 6 contains the IPv6 Prefix Length.
    1130. 

  1130. 		 * Octets 7 through 22 contain an IPv6 Prefix and Interface Identifier.
    1131. 

  1131. 		 * Bit 8 of octet 7 represents the most significant bit of the IPv6 Prefix
    1132. 

  1132. 		 * and Interface Identifier and bit 1 of octet 22 the least significant bit.
    1133. 

  1133. 		 * Octets 23 through 26 contain an IPv4 address. Bit 8 of octet 23 represents
    1134. 

  1134. 		 * the most significant bit of the IPv4 address and bit 1 of octet 26 the least
    1135. 

  1135. 		 * significant bit.
    1136. 

  1136. 		 */
    1137. 

  1137.         proto_tree_add_item(tree, hf_gtpv2_pdn_ipv6_len, tvb, offset, 1, FALSE);
    1138. 

  1138.         offset++;
    1139. 

  1139.         proto_tree_add_item(tree, hf_gtpv2_pdn_ipv6, tvb, offset, 16, FALSE);
    1140. 

  1140.         offset+=16;
    1141. 

  1141.         proto_tree_add_item(tree, hf_gtpv2_pdn_ipv4, tvb, offset, 4, FALSE);
    1142. 

  1142.         offset+=4;
    1143. 

  1143.         break;
    1144. 

  1144.     default:
    1145. 

  1145.         break;
    1146. 

  1146.     }
    1147. 

  1147. }
    1148. 

  1148. /*
    1149. 

  1149.  * 8.15 Bearer Quality of Service (Bearer QoS)
    1150. 

  1150.  */
    1151. 

  1151. 

  1152. static void
    1153. 

  1153. dissect_gtpv2_bearer_qos(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    1154. 

  1154. {
    1155. 

  1155.     int offset = 0;
    1156. 

  1156.     proto_tree_add_item(tree, hf_gtpv2_bearer_qos_pvi, tvb, offset, 1, FALSE);
    1157. 

  1157.     proto_tree_add_item(tree, hf_gtpv2_bearer_qos_pl, tvb, offset, 1, FALSE);
    1158. 

  1158.     proto_tree_add_item(tree, hf_gtpv2_bearer_qos_pci, tvb, offset, 1, FALSE);
    1159. 

  1159.     offset++;
    1160. 

  1160.     proto_tree_add_item(tree, hf_gtpv2_bearer_qos_label_qci, tvb, offset, 1, FALSE);
    1161. 

  1161.     offset++;
    1162. 

  1162.     proto_tree_add_item(tree, hf_gtpv2_bearer_qos_mbr_up, tvb, offset, 5, FALSE);
    1163. 

  1163.     offset= offset+5;
    1164. 

  1164.     proto_tree_add_item(tree, hf_gtpv2_bearer_qos_mbr_down, tvb, offset, 5, FALSE);
    1165. 

  1165.     offset= offset+5;
    1166. 

  1166.     proto_tree_add_item(tree, hf_gtpv2_bearer_qos_gbr_up, tvb, offset, 5, FALSE);
    1167. 

  1167.     offset= offset+5;
    1168. 

  1168.     proto_tree_add_item(tree, hf_gtpv2_bearer_qos_gbr_down, tvb, offset, 5, FALSE);
    1169. 

  1169.     offset= offset+5;
    1170. 

  1170. }
    1171. 

  1171. 

  1172. /*
    1173. 

  1173.  * 8.16 Flow Quality of Service (Flow QoS)
    1174. 

  1174.  */
    1175. 

  1175. 

  1176. static void
    1177. 

  1177. dissect_gtpv2_flow_qos(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    1178. 

  1178. {
    1179. 

  1179.     int offset = 0;
    1180. 

  1180.     proto_tree_add_item(tree, hf_gtpv2_flow_qos_label_qci, tvb, offset, 1, FALSE);
    1181. 

  1181.     offset++;
    1182. 

  1182.     proto_tree_add_item(tree, hf_gtpv2_flow_qos_mbr_up, tvb, offset, 5, FALSE);
    1183. 

  1183.     offset= offset+5;
    1184. 

  1184.     proto_tree_add_item(tree, hf_gtpv2_flow_qos_mbr_down, tvb, offset, 5, FALSE);
    1185. 

  1185.     offset= offset+5;
    1186. 

  1186.     proto_tree_add_item(tree, hf_gtpv2_flow_qos_gbr_up, tvb, offset, 5, FALSE);
    1187. 

  1187.     offset= offset+5;
    1188. 

  1188.     proto_tree_add_item(tree, hf_gtpv2_flow_qos_gbr_down, tvb, offset, 5, FALSE);
    1189. 

  1189.     offset= offset+5;
    1190. 

  1190. }
    1191. 

  1191. 

  1192. /*
    1193. 

  1193.  * 8.17 RAT Type
    1194. 

  1194.  */
    1195. 

  1195. static const value_string gtpv2_rat_type_vals[] = {
    1196. 

  1196.     {0, "Reserved"},
    1197. 

  1197.     {1, "UTRAN"},
    1198. 

  1198.     {2, "GERAN"},
    1199. 

  1199.     {3, "WLAN"},
    1200. 

  1200.     {4, "GAN"},
    1201. 

  1201.     {5, "HSPA Evolution"},
    1202. 

  1202.     {6, "EUTRAN"},
    1203. 

  1203.     {7, "Virtual"},
    1204. 

  1204.     {0, NULL}
    1205. 

  1205. };
    1206. 

  1206. 

  1207. static value_string_ext gtpv2_rat_type_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_rat_type_vals);
    1208. 

  1208. 

  1209. 

  1210. static void
    1211. 

  1211. dissect_gtpv2_rat_type(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    1212. 

  1212. {
    1213. 

  1213.     guint8     rat_type;
    1214. 

  1214. 

  1215.     rat_type = tvb_get_guint8(tvb, 0);
    1216. 

  1216.     proto_tree_add_item(tree, hf_gtpv2_rat_type, tvb, 0, 1, FALSE);
    1217. 

  1217.     proto_item_append_text(tree, "%s (%u)", val_to_str_ext_const(rat_type, &gtpv2_rat_type_vals_ext, "Unknown"),rat_type);
    1218. 

  1218. 

  1219. }
    1220. 

  1220. 

  1221. /*
    1222. 

  1222.  * 8.18 Serving Network
    1223. 

  1223.  */
    1224. 

  1224. static void
    1225. 

  1225. dissect_gtpv2_serv_net(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    1226. 

  1226. {
    1227. 

  1227.     gchar *mcc_mnc_str;
    1228. 

  1228. 

  1229.     mcc_mnc_str = dissect_e212_mcc_mnc_ep_str(tvb, pinfo, tree, 0, TRUE);
    1230. 

  1230.     proto_item_append_text(tree,"%s", mcc_mnc_str);
    1231. 

  1231. }
    1232. 

  1232. 

  1233. /*
    1234. 

  1234.  * 8.19 EPS Bearer Level Traffic Flow Template (Bearer TFT)
    1235. 

  1235.  */
    1236. 

  1236. 

  1237. static void
    1238. 

  1238. dissect_gtpv2_bearer_tft(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    1239. 

  1239. {
    1240. 

  1240. 	/* The detailed coding of Traffic Aggregate
    1241. 

  1241. 	 * Description is specified in 3GPP TS 24.008 [5] ,
    1242. 

  1242. 	 * clause 10.5.6.12, beginning with octet 3..
    1243. 

  1243. 	 * Use the decoding in packet-gsm_a_gm.c
    1244. 

  1244. 	 */
    1245. 

  1245. 	de_sm_tflow_temp(tvb, tree, pinfo, 0, length, NULL, 0);
    1246. 

  1246. 

  1247. }
    1248. 

  1248.  /* 8.20 Traffic Aggregate Description (TAD)
    1249. 

  1249.  */
    1250. 

  1250. static void
    1251. 

  1251. dissect_gtpv2_tad(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    1252. 

  1252. {
    1253. 

  1253. 	/* The detailed coding of Traffic Aggregate
    1254. 

  1254. 	 * Description is specified in 3GPP TS 24.008 [5] ,
    1255. 

  1255. 	 * clause 10.5.6.12, beginning with octet 3..
    1256. 

  1256. 	 * Use the decoding in packet-gsm_a_gm.c
    1257. 

  1257. 	 */
    1258. 

  1258. 	de_sm_tflow_temp(tvb, tree, pinfo, 0, length, NULL, 0);
    1259. 

  1259. }
    1260. 

  1260. 

  1261. /*
    1262. 

  1262.  * 8.21 User Location Info (ULI)
    1263. 

  1263.  *
    1264. 

  1264.  * The flags ECGI, TAI, RAI, SAI and CGI in octed 5 indicate if the corresponding
    1265. 

  1265.  * fields are present in the IE or not. If one of these flags is set to "0",
    1266. 

  1266.  * the corresponding field is not present at all. The respective identities are defined in 3GPP
    1267. 

  1267.  * TS 23.003 [2].
    1268. 

  1268.  * Editor's Note: The definition of ECGI is missing in 3GPP TS 23.003 v8.1.0.
    1269. 

  1269.  * It can be found in 3GPP TS 36.413 v8.3.0, but it is expected that it will be moved
    1270. 

  1270.  * to 23.003 in a future version.
    1271. 

  1271.  */
    1272. 

  1272. 

  1273. static void
    1274. 

  1274. decode_gtpv2_uli(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 instance _U_, guint flags)
    1275. 

  1275. {
    1276. 

  1276.     int offset = 1;
    1277. 

  1277.     proto_item	*fi;
    1278. 

  1278.     proto_tree	*part_tree;
    1279. 

  1279. 

  1280.     /* 8.21.1 CGI field  */
    1281. 

  1281.     if (flags & GTPv2_ULI_CGI_MASK)
    1282. 

  1282.     {
    1283. 

  1283.         proto_item_append_text(item, "CGI ");
    1284. 

  1284. 	fi = proto_tree_add_text(tree, tvb, offset + 1, 7, "Cell Global Identity (CGI)");
    1285. 

  1285. 	part_tree = proto_item_add_subtree(fi, ett_gtpv2_uli_field);
    1286. 

  1286.         dissect_e212_mcc_mnc(tvb, pinfo, part_tree, offset, TRUE);
    1287. 

  1287.         offset+=3;
    1288. 

  1288.         proto_tree_add_item(part_tree, hf_gtpv2_uli_cgi_lac, tvb, offset, 2, FALSE);
    1289. 

  1289.         proto_tree_add_item(part_tree, hf_gtpv2_uli_cgi_ci, tvb, offset, 2, FALSE);
    1290. 

  1290.         offset+=4;
    1291. 

  1291.         if(offset==length)
    1292. 

  1292.             return;
    1293. 

  1293.     }
    1294. 

  1294. 

  1295.     /* 8.21.2 SAI field  */
    1296. 

  1296.     if (flags & GTPv2_ULI_SAI_MASK)
    1297. 

  1297.     {
    1298. 

  1298.         proto_item_append_text(item, "SAI ");
    1299. 

  1299.         fi = proto_tree_add_text(tree, tvb, offset + 1, 7, "Service Area Identity (SAI)");
    1300. 

  1300.         part_tree = proto_item_add_subtree(fi, ett_gtpv2_uli_field);
    1301. 

  1301.         dissect_e212_mcc_mnc(tvb, pinfo, part_tree, offset, TRUE);
    1302. 

  1302.         offset+=3;
    1303. 

  1303.         proto_tree_add_item(part_tree, hf_gtpv2_uli_sai_lac, tvb, offset, 2, FALSE);
    1304. 

  1304.         proto_tree_add_item(part_tree, hf_gtpv2_uli_sai_sac, tvb, offset, 2, FALSE);
    1305. 

  1305.         offset+=4;
    1306. 

  1306.         if(offset==length)
    1307. 

  1307.             return;
    1308. 

  1308.     }
    1309. 

  1309.     /* 8.21.3 RAI field  */
    1310. 

  1310.     if (flags & GTPv2_ULI_RAI_MASK)
    1311. 

  1311.     {
    1312. 

  1312.         proto_item_append_text(item, "RAI ");
    1313. 

  1313.         fi = proto_tree_add_text(tree, tvb, offset + 1, 7, "Routeing Area Identity (RAI)");
    1314. 

  1314.         part_tree = proto_item_add_subtree(fi, ett_gtpv2_uli_field);
    1315. 

  1315.         dissect_e212_mcc_mnc(tvb, pinfo, part_tree, offset, TRUE);
    1316. 

  1316.         offset+=3;
    1317. 

  1317.         proto_tree_add_item(part_tree, hf_gtpv2_uli_rai_lac, tvb, offset, 2, FALSE);
    1318. 

  1318.         proto_tree_add_item(part_tree, hf_gtpv2_uli_rai_rac, tvb, offset, 2, FALSE);
    1319. 

  1319.         offset+=4;
    1320. 

  1320.         if(offset==length)
    1321. 

  1321.             return;
    1322. 

  1322.     }
    1323. 

  1323.     /* 8.21.4 TAI field  */
    1324. 

  1324.     if (flags & GTPv2_ULI_TAI_MASK)
    1325. 

  1325.     {
    1326. 

  1326.         proto_item_append_text(item, "TAI ");
    1327. 

  1327.         fi = proto_tree_add_text(tree, tvb, offset + 1, 7, "Tracking Area Identity (TAI)");
    1328. 

  1328.         part_tree = proto_item_add_subtree(fi, ett_gtpv2_uli_field);
    1329. 

  1329.         dissect_e212_mcc_mnc(tvb, pinfo, part_tree, offset, TRUE);
    1330. 

  1330.         offset+=3;
    1331. 

  1331.         proto_tree_add_item(part_tree, hf_gtpv2_uli_tai_tac, tvb, offset, 2, FALSE);
    1332. 

  1332.         offset+=2;
    1333. 

  1333.         if(offset==length)
    1334. 

  1334.             return;
    1335. 

  1335.     }
    1336. 

  1336.     /* 8.21.5 ECGI field */
    1337. 

  1337.     if (flags & GTPv2_ULI_ECGI_MASK)
    1338. 

  1338.     {
    1339. 

  1339.         guint8 octet;
    1340. 

  1340.         guint32 octet4;
    1341. 

  1341.         guint8 spare;
    1342. 

  1342.         guint32 ECGI;
    1343. 

  1343. 

  1344.         proto_item_append_text(item, "ECGI ");
    1345. 

  1345.         fi = proto_tree_add_text(tree, tvb, offset + 1, 7, "E-UTRAN Cell Global Identifier (ECGI)");
    1346. 

  1346.         part_tree = proto_item_add_subtree(fi, ett_gtpv2_uli_field);
    1347. 

  1347.         dissect_e212_mcc_mnc(tvb, pinfo, part_tree, offset, TRUE);
    1348. 

  1348.         offset+=3;
    1349. 

  1349.         /* The bits 8 through 5, of octet e+3 (Fig 8.21.5-1 in TS 29.274 V8.2.0) are spare
    1350. 

  1350.          * and hence they would not make any difference to the hex string following it,
    1351. 

  1351. 	 * thus we directly read 4 bytes from the tvb
    1352. 

  1352. 	 */
    1353. 

  1353. 

  1354.         octet = tvb_get_guint8(tvb,offset);
    1355. 

  1355.         spare = octet & 0xF0;
    1356. 

  1356.         octet4 = tvb_get_ntohl(tvb,offset);
    1357. 

  1357.         ECGI = octet4 & 0x0FFFFFFF;
    1358. 

  1358.         proto_tree_add_uint(part_tree, hf_gtpv2_uli_ecgi_eci_spare, tvb, offset, 1, spare);
    1359. 

  1359. 	/* The coding of the E-UTRAN cell identifier is the responsibility of each administration.
    1360. 

  1360. 	 * Coding using full hexadecimal representation shall be used.
    1361. 

  1361. 	 */
    1362. 

  1362.         proto_tree_add_uint(part_tree, hf_gtpv2_uli_ecgi_eci, tvb, offset, 4, ECGI);
    1363. 

  1363.         /*proto_tree_add_item(tree, hf_gtpv2_uli_ecgi_eci, tvb, offset, 4, FALSE);*/
    1364. 

  1364.         offset+=4;
    1365. 

  1365.         if(offset==length)
    1366. 

  1366.             return;
    1367. 

  1367. 

  1368.     }
    1369. 

  1369.     /* 8.21.6	LAI field */
    1370. 

  1370.     if (flags & GTPv2_ULI_LAI_MASK)
    1371. 

  1371.     {
    1372. 

  1372.         proto_item_append_text(item, "LAI ");
    1373. 

  1373.         fi = proto_tree_add_text(tree, tvb, offset + 1, 5, "LAI (Location Area Identifier)");
    1374. 

  1374.         part_tree = proto_item_add_subtree(fi, ett_gtpv2_uli_field);
    1375. 

  1375.         dissect_e212_mcc_mnc(tvb, pinfo, part_tree, offset, TRUE);
    1376. 

  1376.         offset+=3;
    1377. 

  1377. 

  1378. 	/* The Location Area Code (LAC) consists of 2 octets. Bit 8 of Octet f+3 is the most significant bit
    1379. 

  1379. 	 * and bit 1 of Octet f+4 the least significant bit. The coding of the location area code is the
    1380. 

  1380. 	 * responsibility of each administration. Coding using full hexadecimal representation shall be used.
    1381. 

  1381. 	 */
    1382. 

  1382. 	proto_tree_add_item(part_tree, hf_gtpv2_uli_lai_lac, tvb, offset, 2, FALSE);
    1383. 

  1383. 	offset+=2;
    1384. 

  1384. 

  1385.     }
    1386. 

  1386. 

  1387. }
    1388. 

  1388. 

  1389. static void
    1390. 

  1390. dissect_gtpv2_uli(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    1391. 

  1391. {
    1392. 

  1392.     proto_item	*flags_item;
    1393. 

  1393.     proto_tree	*flag_tree;
    1394. 

  1394.     int offset = 0;
    1395. 

  1395.     guint flags;
    1396. 

  1396. 

  1397.     flags_item = proto_tree_add_text(tree, tvb, offset, 1, "Flags");
    1398. 

  1398.     flag_tree = proto_item_add_subtree(flags_item, ett_gtpv2_uli_flags);
    1399. 

  1399.     flags = tvb_get_guint8(tvb,offset)&0x3f;
    1400. 

  1400.     proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits,	tvb, offset>>3, 2, FALSE);
    1401. 

  1401. 

  1402.     /* LAI B6 */
    1403. 

  1403.     proto_tree_add_item(flag_tree, hf_gtpv2_uli_lai_flg, tvb, offset, 1, FALSE);
    1404. 

  1404.     /* ECGI B5 */
    1405. 

  1405.     proto_tree_add_item(flag_tree, hf_gtpv2_uli_ecgi_flg, tvb, offset, 1, FALSE);
    1406. 

  1406.     /* TAI B4  */
    1407. 

  1407.     proto_tree_add_item(flag_tree, hf_gtpv2_uli_tai_flg, tvb, offset, 1, FALSE);
    1408. 

  1408.     /* RAI B3  */
    1409. 

  1409.     proto_tree_add_item(flag_tree, hf_gtpv2_uli_rai_flg, tvb, offset, 1, FALSE);
    1410. 

  1410.     /* SAI B2  */
    1411. 

  1411.     proto_tree_add_item(flag_tree, hf_gtpv2_uli_sai_flg, tvb, offset, 1, FALSE);
    1412. 

  1412.     /* CGI B1  */
    1413. 

  1413.     proto_tree_add_item(flag_tree, hf_gtpv2_uli_cgi_flg, tvb, offset, 1, FALSE);
    1414. 

  1414. 

  1415.     decode_gtpv2_uli(tvb, pinfo, tree, item, length, instance, flags);
    1416. 

  1416. 

  1417.     return;
    1418. 

  1418. }
    1419. 

  1419. 

  1420. /* Diameter 3GPP AVP Code: 22 3GPP-User-Location-Info */
    1421. 

  1421. /*
    1422. 

  1422.  * TS 29.061 v9.2.0
    1423. 

  1423.  * 16.4.7.2 Coding 3GPP Vendor-Specific RADIUS attributes
    1424. 

  1424.  *
    1425. 

  1425.  * For P-GW, the Geographic Location Type values and coding are defined as follows:
    1426. 

  1426.  *
    1427. 

  1427.  * 0		CGI
    1428. 

  1428.  * 1		SAI
    1429. 

  1429.  * 2		RAI
    1430. 

  1430.  * 3-127	Spare for future use
    1431. 

  1431.  * 128		TAI
    1432. 

  1432.  * 129		ECGI
    1433. 

  1433.  * 130		TAI and ECGI
    1434. 

  1434.  * 131-255	Spare for future use
    1435. 

  1435.  */
    1436. 

  1436. 

  1437. static int
    1438. 

  1438. dissect_diameter_3gpp_uli(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_)
    1439. 

  1439. {
    1440. 

  1440.     int offset = 0;
    1441. 

  1441.     guint length;
    1442. 

  1442.     guint flags;
    1443. 

  1443.     guint flags_3gpp;
    1444. 

  1444.     length = tvb_length(tvb);
    1445. 

  1445.     flags_3gpp = tvb_get_guint8(tvb,offset);
    1446. 

  1446. 

  1447.     switch(flags_3gpp)
    1448. 

  1448.     {
    1449. 

  1449.     case 128:
    1450. 

  1450.         /* TAI */
    1451. 

  1451.         flags = GTPv2_ULI_TAI_MASK;
    1452. 

  1452.         break;
    1453. 

  1453.     case 129:
    1454. 

  1454.         /* ECGI */
    1455. 

  1455.         flags = GTPv2_ULI_ECGI_MASK;
    1456. 

  1456.         break;
    1457. 

  1457.     case 130:
    1458. 

  1458.         /* TAI and ECGI */
    1459. 

  1459.         flags = GTPv2_ULI_TAI_MASK + GTPv2_ULI_ECGI_MASK;
    1460. 

  1460.         break;
    1461. 

  1461.     default:
    1462. 

  1462.         flags = flags_3gpp;
    1463. 

  1463.         break;
    1464. 

  1464.     }
    1465. 

  1465. 

  1466.     decode_gtpv2_uli(tvb, pinfo, tree, NULL, length, 0, flags);
    1467. 

  1467.     return length;
    1468. 

  1468. }
    1469. 

  1469. 

  1470. /*
    1471. 

  1471.  * 8.22 Fully Qualified TEID (F-TEID)
    1472. 

  1472.  */
    1473. 

  1473. static const value_string gtpv2_f_teid_interface_type_vals[] = {
    1474. 

  1474.     {0, "S1-U eNodeB GTP-U interface"},
    1475. 

  1475.     {1, "S1-U SGW GTP-U interface"},
    1476. 

  1476.     {2, "S12 RNC GTP-U interface"},
    1477. 

  1477.     {3, "S12 SGW GTP-U interface"},
    1478. 

  1478.     {4, "S5/S8 SGW GTP-U interface"},
    1479. 

  1479.     {5, "S5/S8 PGW GTP-U interface"},
    1480. 

  1480.     {6, "S5/S8 SGW GTP-C interface"},
    1481. 

  1481.     {7, "S5/S8 PGW GTP-C interface"},
    1482. 

  1482.     {8, "S5/S8 SGW PMIPv6 interface"},/* (the 32 bit GRE key is encoded in 32 bit TEID field "
    1483. 

  1483.         "and since alternate CoA is not used the control plane and user plane addresses are the same for PMIPv6)"}, */
    1484. 

  1484.     {9, "S5/S8 PGW PMIPv6 interface"},/* (the 32 bit GRE key is encoded in 32 bit TEID field "
    1485. 

  1485.         "and the control plane and user plane addresses are the same for PMIPv6)"}, */
    1486. 

  1486.     {10, "S11 MME GTP-C interface"},
    1487. 

  1487.     {11, "S11/S4 SGW GTP-C interface"},
    1488. 

  1488.     {12, "S10 MME GTP-C interface"},
    1489. 

  1489.     {13, "S3 MME GTP-C interface"},
    1490. 

  1490.     {14, "S3 SGSN GTP-C interface"},
    1491. 

  1491.     {15, "S4 SGSN GTP-U interface"},
    1492. 

  1492.     {16, "S4 SGW GTP-U interface"},
    1493. 

  1493.     {17, "S4 SGSN GTP-C interface"},
    1494. 

  1494.     {18, "S16 SGSN GTP-C interface"},
    1495. 

  1495.     {19, "eNodeB GTP-U interface for DL data forwarding"},
    1496. 

  1496.     {20, "eNodeB GTP-U interface for UL data forwarding"},
    1497. 

  1497.     {21, "RNC GTP-U interface for data forwarding"},
    1498. 

  1498.     {22, "SGSN GTP-U interface for data forwarding"},
    1499. 

  1499.     {23, "SGW GTP-U interface for data forwarding"},
    1500. 

  1500.     {24, "Sm MBMS GW GTP-C interface"},
    1501. 

  1501.     {25, "Sn MBMS GW GTP-C interface"},
    1502. 

  1502.     {26, "Sm MME GTP-C interface"},
    1503. 

  1503.     {27, "Sn SGSN GTP-C interface"},
    1504. 

  1504.     {28, "SGW GTP-U interface for UL data forwarding"},
    1505. 

  1505.     {29, "Sn SGSN GTP-U interface"},
    1506. 

  1506.     {30, "S2b ePDG GTP-C interface"},
    1507. 

  1507.     {31, "S2b-U ePDG GTP-U interface"},
    1508. 

  1508.     {32, "S2b PGW GTP-C interface"},
    1509. 

  1509.     {33, "S2b-U PGW GTP-U interface"},
    1510. 

  1510.     {0, NULL}
    1511. 

  1511. };
    1512. 

  1512. static value_string_ext gtpv2_f_teid_interface_type_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_f_teid_interface_type_vals);
    1513. 

  1513. 

  1514. static const true_false_string gtpv2_f_teid_v4_vals = {
    1515. 

  1515. 	"IPv4 address present",
    1516. 

  1516. 	"IPv4 address not present",
    1517. 

  1517. };
    1518. 

  1518. 

  1519. static const true_false_string gtpv2_f_teid_v6_vals = {
    1520. 

  1520. 	"IPv6 address present",
    1521. 

  1521. 	"IPv6 address not present",
    1522. 

  1522. };
    1523. 

  1523. 

  1524. static void
    1525. 

  1525. dissect_gtpv2_f_teid(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    1526. 

  1526. {
    1527. 

  1527.     int offset = 0;
    1528. 

  1528.     guint8 flags;
    1529. 

  1529. 

  1530.     flags = tvb_get_guint8(tvb, offset);
    1531. 

  1531.     proto_tree_add_item(tree, hf_gtpv2_f_teid_v4, tvb, offset, 1, FALSE);
    1532. 

  1532.     proto_tree_add_item(tree, hf_gtpv2_f_teid_v6, tvb, offset, 1, FALSE);
    1533. 

  1533.     proto_tree_add_item(tree, hf_gtpv2_f_teid_interface_type, tvb, offset, 1, FALSE);
    1534. 

  1534. 

  1535.     offset++;
    1536. 

  1536.     proto_tree_add_item(tree, hf_gtpv2_f_teid_gre_key, tvb, offset, 4, FALSE);
    1537. 

  1537.     proto_item_append_text(tree, "%s, TEID/GRE Key: 0x%s", val_to_str_ext_const((flags & 0x1f), &gtpv2_f_teid_interface_type_vals_ext, "Unknown"),
    1538. 

  1538.         tvb_bytes_to_str(tvb, offset, 4));
    1539. 

  1539. 

  1540.     offset= offset+4;
    1541. 

  1541.     if (flags&0x80)
    1542. 

  1542.     {
    1543. 

  1543.         proto_tree_add_item(tree, hf_gtpv2_f_teid_ipv4, tvb, offset, 4, FALSE);
    1544. 

  1544. 	proto_item_append_text(item, ", IPv4 %s", tvb_ip_to_str(tvb, offset));
    1545. 

  1545.         offset= offset+4;
    1546. 

  1546.     }
    1547. 

  1547.     if (flags&0x40)
    1548. 

  1548.     {
    1549. 

  1549. 	proto_tree_add_item(tree, hf_gtpv2_f_teid_ipv6, tvb, offset, 16, FALSE);
    1550. 

  1550. 	proto_item_append_text(item, ", IPv6 %s", tvb_ip6_to_str(tvb, offset));
    1551. 

  1551.         offset= offset+16;
    1552. 

  1552.     }
    1553. 

  1553. }
    1554. 

  1554. /*
    1555. 

  1555.  * 8.23 TMSI
    1556. 

  1556.  */
    1557. 

  1557. static void
    1558. 

  1558. dissect_gtpv2_tmsi(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
    1559. 

  1559. {
    1560. 

  1560.     proto_tree_add_item(tree, hf_gtpv2_tmsi, tvb, 0, 4, FALSE);
    1561. 

  1561.     proto_tree_add_text(item, tvb, 0, length, "TMSI: %s", tvb_bytes_to_str(tvb, 0, 4));
    1562. 

  1562. }
    1563. 

  1563. /*
    1564. 

  1564.  * 8.24 Global CN-Id
    1565. 

  1565.  * (TS 23.003)
    1566. 

  1566.  * 12.3 CN Identifier
    1567. 

  1567.  *
    1568. 

  1568.  * A CN node is uniquely identified within a PLMN by its CN Identifier (CN-Id). The CN-Id together with the PLMN
    1569. 

  1569.  * identifier globally identifies the CN node. The CN-Id together with the PLMN-Id is used as the CN node identifier in
    1570. 

  1570.  * RANAP signalling over the Iu interface.
    1571. 

  1571.  * Global CN-Id = PLMN-Id || CN-Id
    1572. 

  1572.  * The CN-Id is defined by the operator, and set in the nodes via O&M.
    1573. 

  1573.  * For the syntax description and the use of this identifier in RANAP signalling, see 3GPP TS 25.413 [17].
    1574. 

  1574.  */
    1575. 

  1575. 

  1576. static void
    1577. 

  1577. dissect_gtpv2_g_cn_id(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    1578. 

  1578. {
    1579. 

  1579.     int offset = 0;
    1580. 

  1580. 

  1581.     dissect_e212_mcc_mnc(tvb, pinfo, tree, 0, TRUE);
    1582. 

  1582.     offset +=3;
    1583. 

  1583. 

  1584.     /* >CN-ID M INTEGER (0..4095) */
    1585. 

  1585.     proto_tree_add_text(tree, tvb, offset, 2, "CN-Id: %s",
    1586. 

  1586. 			tvb_bytes_to_str(tvb, offset, 2));
    1587. 

  1587. }
    1588. 

  1588. /*
    1589. 

  1589.  * 8.25 S103 PDN Data Forwarding Info (S103PDF)
    1590. 

  1590.  */
    1591. 

  1591. static void
    1592. 

  1592. dissect_gtpv2_s103pdf(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    1593. 

  1593. {
    1594. 

  1594.     proto_item *expert_item;
    1595. 

  1595.     int offset = 0;
    1596. 

  1596.     guint8       m,k,i;
    1597. 

  1597. 

  1598.     /* The HSGW Address and GRE Key identify a GRE Tunnel towards a HSGW over S103 interface for a specific PDN
    1599. 

  1599.      * connection of the UE. The EPS Bearer IDs specify the EPS Bearers which require data forwarding that belonging to this
    1600. 

  1600.      * PDN connection. The number of EPS bearer Ids included is specified by the value of EPS Bearer ID Number.
    1601. 

  1601.      */
    1602. 

  1602.     /* Octet 5 HSGW Address for forwarding Length = m */
    1603. 

  1603.     m = tvb_get_guint8(tvb, offset);
    1604. 

  1604.     proto_tree_add_item(tree, hf_gtpv2_hsgw_addr_f_len, tvb, offset, 1, FALSE);
    1605. 

  1605.     offset++;
    1606. 

  1606. 

  1607.     /* 6 to (m+5) HSGW Address for forwarding [4..16] */
    1608. 

  1608.     switch(m) {
    1609. 

  1609. 	case 4:
    1610. 

  1610. 	    /* IPv4 */
    1611. 

  1611. 	    proto_tree_add_item(tree, hf_gtpv2_hsgw_addr_ipv4, tvb, offset, 1, FALSE);
    1612. 

  1612. 	    offset+=4;
    1613. 

  1613. 	    break;
    1614. 

  1614. 	case 16:
    1615. 

  1615. 	    /* IPv6 */
    1616. 

  1616. 	    proto_tree_add_item(tree, hf_gtpv2_hsgw_addr_ipv6, tvb, offset, 1, FALSE);
    1617. 

  1617. 	    offset+=16;
    1618. 

  1618. 	    break;
    1619. 

  1619. 	default:
    1620. 

  1620. 	    /* Error */
    1621. 

  1621. 	    expert_item = proto_tree_add_text(tree, tvb, 0, length, "Wrong length %u, should be 4 or 16",m);
    1622. 

  1622. 	    expert_add_info_format(pinfo, expert_item, PI_PROTOCOL, PI_ERROR, "Wrong length %u, should be 4 or 16",m);
    1623. 

  1623. 	    PROTO_ITEM_SET_GENERATED(expert_item);
    1624. 

  1624. 	    return;
    1625. 

  1625.     }
    1626. 

  1626. 

  1627.     /* (m+6)- to (m+9) GRE Key */
    1628. 

  1628.     proto_tree_add_item(tree, hf_gtpv2_gre_key, tvb, offset, 4, FALSE);
    1629. 

  1629.     offset+=4;
    1630. 

  1630. 

  1631.     /* (m+10) EPS Bearer ID Number = k */
    1632. 

  1632.     k = tvb_get_guint8(tvb, offset);
    1633. 

  1633.     proto_tree_add_text(tree, tvb, offset, 1, "EPS Bearer ID Number = %d", k);
    1634. 

  1634.     offset += 1;
    1635. 

  1635. 

  1636.     /* (m+11) to (m+10+k)
    1637. 

  1637.      * Spare EPS Bearer ID
    1638. 

  1638.      */
    1639. 

  1639.     for ( i = 0; i < k; i++ ){
    1640. 

  1640. 	proto_tree_add_bits_item(tree, hf_gtpv2_spare_bits, tvb, offset<<3, 4, FALSE);
    1641. 

  1641. 	proto_tree_add_item(tree, hf_gtpv2_ebi, tvb, offset, 1, FALSE);
    1642. 

  1642. 	offset++;
    1643. 

  1643.     }
    1644. 

  1644. 

  1645. }
    1646. 

  1646. /*
    1647. 

  1647.  * 8.26 S1-U Data Forwarding (S1UDF)
    1648. 

  1648.  */
    1649. 

  1649. static void
    1650. 

  1650. dissect_gtpv2_s1udf(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
    1651. 

  1651. {
    1652. 

  1652.     proto_item *expert_item;
    1653. 

  1653.     int offset = 0;
    1654. 

  1654.     guint8       m;
    1655. 

  1655. 

  1656.     /* 5 Spare EPS Bearer ID */
    1657. 

  1657.     proto_tree_add_bits_item(tree, hf_gtpv2_spare_bits, tvb, offset<<3, 4, FALSE);
    1658. 

  1658.     proto_tree_add_item(tree, hf_gtpv2_ebi, tvb, offset, 1, FALSE);
    1659. 

  1659.     offset++;
    1660. 

  1660.     /* 6 Serving GW Address Length = m */
    1661. 

  1661.     m = tvb_get_guint8(tvb, offset);
    1662. 

  1662.     proto_tree_add_text(tree, tvb, offset, 1, "Serving GW Address Length = %u", m);
    1663. 

  1663.     offset++;
    1664. 

  1664.     /* 7 to (m+6) Serving GW Address [4..16] */
    1665. 

  1665.     switch(m) {
    1666. 

  1666. 	case 4:
    1667. 

  1667. 	    /* IPv4 */
    1668. 

  1668. 	    proto_tree_add_item(tree, hf_gtpv2_sgw_addr_ipv4, tvb, offset, 1, FALSE);
    1669. 

  1669. 	    offset+=4;
    1670. 

  1670. 	    break;
    1671. 

  1671. 	case 16:
    1672. 

  1672. 	    /* IPv6 */
    1673. 

  1673. 	    proto_tree_add_item(tree, hf_gtpv2_sgw_addr_ipv6, tvb, offset, 1, FALSE);
    1674. 

  1674. 	    offset+=16;
    1675. 

  1675. 	    break;
    1676. 

  1676. 	default:
    1677. 

  1677. 	    /* Error */
    1678. 

  1678. 	    expert_item = proto_tree_add_text(tree, tvb, 0, length, "Wrong length %u, should be 4 or 16",m);
    1679. 

  1679. 	    expert_add_info_format(pinfo, expert_item, PI_PROTOCOL, PI_ERROR, "Wrong length %u, should be 4 or 16",m);
    1680. 

  1680. 	    PROTO_ITEM_SET_GENERATED(expert_item);
    1681. 

  1681. 	    return;
    1682. 

  1682.     }
    1683. 

  1683. 

  1684.     /* (m+7) to (m+10)
    1685. 

  1685.      * Serving GW S1-U TEID
    1686. 

  1686.      */
    1687. 

  1687.     proto_tree_add_item(tree, hf_gtpv2_sgw_s1u_teid, tvb, offset, 4, FALSE);
    1688. 

  1688. 

  1689. }
    1690. 

  1690. /*
    1691. 

  1691.  * 8.27 Delay Value
    1692. 

  1692.  */
    1693. 

  1693. 

  1694. static void
    1695. 

  1695. dissect_gtpv2_delay_value(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_,  guint8 instance _U_)
    1696. 

  1696. {
    1697. 

  1697.     int offset = 0;
    1698. 

  1698. 

  1699.     proto_tree_add_item(tree, hf_gtpv2_delay_value, tvb, offset, 1, FALSE);
    1700. 

  1700. }
    1701. 

  1701. 

  1702. /*
    1703. 

  1703.  * 8.28 Bearer Context (grouped IE)
    1704. 

  1704.  */
    1705. 

  1705. 

  1706. static void
    1707. 

  1707. dissect_gtpv2_bearer_ctx(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree _U_, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
    1708. 

  1708. {
    1709. 

  1709.     int offset= 0;
    1710. 

  1710.     tvbuff_t  *new_tvb;
    1711. 

  1711.     proto_tree *grouped_tree;
    1712. 

  1712. 

  1713.     proto_item_append_text(item, "[Grouped IE]");
    1714. 

  1714.     grouped_tree = proto_item_add_subtree(item, ett_gtpv2_bearer_ctx);
    1715. 

  1715. 

  1716.     new_tvb = tvb_new_subset(tvb, offset, length, length );
    1717. 

  1717.     dissect_gtpv2_ie_common(new_tvb, pinfo, grouped_tree, 0, message_type);
    1718. 

  1718. }
    1719. 

  1719. 

  1720. /* 8.29 Charging ID */
    1721. 

  1721. static void
    1722. 

  1722. dissect_gtpv2_charging_id(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_,  guint8 instance _U_)
    1723. 

  1723. {
    1724. 

  1724.     int offset = 0;
    1725. 

  1725. 

  1726.     proto_tree_add_item(tree, hf_gtpv2_charging_id, tvb, offset, length, FALSE);
    1727. 

  1727. }
    1728. 

  1728. 

  1729. 

  1730.  /* 8.30 Charging Characteristics
    1731. 

  1731.   * The charging characteristics information element is defined in 3GPP TS 32.251 [8]
    1732. 

  1732.   * and is a way of informing both the SGW and PGW of the rules for producing charging
    1733. 

  1733.   * information based on operator configured triggers. For the encoding of this
    1734. 

  1734.   * information element see 3GPP TS 32.298 [9].
    1735. 

  1735.   */
    1736. 

  1736. static void
    1737. 

  1737. dissect_gtpv2_char_char(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    1738. 

  1738. {
    1739. 

  1739.     int offset = 0;
    1740. 

  1740. 

  1741.     proto_tree_add_item(tree, hf_gtpv2_charging_characteristic, tvb, offset, 2, FALSE);
    1742. 

  1742.     if(length>2){
    1743. 

  1743.         offset+=2;
    1744. 

  1744.         /* These octet(s) is/are present only if explicitly specified */
    1745. 

  1745.         proto_tree_add_text(tree, tvb, offset, length-2, "Remaining octets");
    1746. 

  1746.     }
    1747. 

  1747. 

  1748. }
    1749. 

  1749. 

  1750. /*
    1751. 

  1751.  * 8.30 Bearer Flag
    1752. 

  1752.  */
    1753. 

  1753. static void
    1754. 

  1754. dissect_gtpv2_bearer_flag(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    1755. 

  1755. {
    1756. 

  1756. 

  1757.     int offset = 0;
    1758. 

  1758. 

  1759.     /* Octet 5 Spare VB PPC */
    1760. 

  1760.     proto_tree_add_item(tree, hf_gtpv2_bearer_flag_ppc, tvb, offset, length, FALSE);
    1761. 

  1761.     proto_tree_add_item(tree, hf_gtpv2_bearer_flag_vb, tvb, offset, length, FALSE);
    1762. 

  1762. 

  1763. }
    1764. 

  1764. /*
    1765. 

  1765.  * 8.34 PDN Type
    1766. 

  1766.  */
    1767. 

  1767. static void
    1768. 

  1768. dissect_gtpv2_pdn_type(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    1769. 

  1769. {
    1770. 

  1770. 

  1771.     int offset = 0;
    1772. 

  1772.     guint8 pdn;
    1773. 

  1773. 

  1774.     if (length != 1) {
    1775. 

  1775.         proto_item *expert_item;
    1776. 

  1776.         expert_item = proto_tree_add_text(tree, tvb, 0, length, "Wrong length indicated. Expected 1, got %u", length);
    1777. 

  1777.         expert_add_info_format(pinfo, expert_item, PI_MALFORMED, PI_ERROR, "Wrong length indicated. Expected 1, got %u", length);
    1778. 

  1778.         PROTO_ITEM_SET_GENERATED(expert_item);
    1779. 

  1779.         return;
    1780. 

  1780.     }
    1781. 

  1781. 

  1782.     proto_tree_add_bits_item(tree, hf_gtpv2_spare_bits, tvb, offset<<3, 5, FALSE);
    1783. 

  1783.     pdn = tvb_get_guint8(tvb, offset)& 0x7;
    1784. 

  1784.     proto_tree_add_item(tree, hf_gtpv2_pdn_type, tvb, offset, length, FALSE);
    1785. 

  1785.     proto_item_append_text(tree, "%s", val_to_str(pdn, gtpv2_pdn_type_vals, "Unknown"));
    1786. 

  1786. 

  1787. }
    1788. 

  1788. 

  1789. /*
    1790. 

  1790.  * 8.31 Trace Information
    1791. 

  1791.  */
    1792. 

  1792. static void
    1793. 

  1793. dissect_gtpv2_tra_info(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
    1794. 

  1794. {
    1795. 

  1795.     proto_item	*trigg, *msc_server, *mgw, *sgsn, *ggsn, *bm_sc, *sgw_mme, *ne_types;
    1796. 

  1796.     proto_tree	*trigg_tree, *msc_server_tree, *mgw_tree, *sgsn_tree, *ggsn_tree, *bm_sc_tree, *sgw_mme_tree, *ne_types_tree;
    1797. 

  1797.     proto_item	*interfaces, *imsc_server, *lmgw, *lsgsn, *lggsn, *lrnc, *lbm_sc, *lmme, *lsgw, *lpdn_gw, *lenb;
    1798. 

  1798.     proto_tree	*interfaces_tree, *imsc_server_tree, *lmgw_tree, *lsgsn_tree, *lggsn_tree, *lrnc_tree, *lbm_sc_tree, *lmme_tree, *lsgw_tree, *lpdn_gw_tree, *lenb_tree;
    1799. 

  1799. 

  1800.     int 		offset = 0;
    1801. 

  1801.     /*--------------------------------------------------
    1802. 

  1802.     * guint8 		*trace_id = NULL;
    1803. 

  1803.     *--------------------------------------------------*/
    1804. 

  1804.     guint8		tdl;
    1805. 

  1805.     guint16		tid;
    1806. 

  1806.     guint32		bit_offset;
    1807. 

  1807. 

  1808.     dissect_e212_mcc_mnc(tvb, pinfo, tree, 0, TRUE);
    1809. 

  1809.     offset +=3;
    1810. 

  1810. 

  1811.     /* Append Trace ID to main tree */
    1812. 

  1812.     tid = tvb_get_ntohs(tvb, offset);
    1813. 

  1813.     proto_item_append_text(tree, "Trace ID: %d  ", tid);
    1814. 

  1814. 

  1815.     /* Trace ID */
    1816. 

  1816.     /*--------------------------------------------------
    1817. 

  1817.     * trace_id = tvb_format_text(tvb, offset, 2);
    1818. 

  1818.     * proto_tree_add_string(tree, hf_gtpv2_tra_info, tvb, offset, length, trace_id);
    1819. 

  1819.     *--------------------------------------------------*/
    1820. 

  1820.     proto_tree_add_text(tree, tvb, offset, 3, "Trace ID: %d", tid);
    1821. 

  1821.     offset +=3;
    1822. 

  1822. 

  1823.     /* Triggering Events, put all into a new tree called trigging_tree */
    1824. 

  1824.     trigg = proto_tree_add_text(tree, tvb, offset, 8, "Trigging Events");
    1825. 

  1825.     trigg_tree = proto_item_add_subtree(trigg, ett_gtpv2_tra_info_trigg);
    1826. 

  1826. 

  1827.     /* Create all subtrees */
    1828. 

  1828.     msc_server = proto_tree_add_text(trigg_tree, tvb, offset, 2, "MSC Server");
    1829. 

  1829.     msc_server_tree = proto_item_add_subtree(msc_server, ett_gtpv2_tra_info_trigg_msc_server);
    1830. 

  1830. 

  1831.     mgw = proto_tree_add_text(trigg_tree, tvb, offset + 2, 1, "MGW");
    1832. 

  1832.     mgw_tree = proto_item_add_subtree(mgw, ett_gtpv2_tra_info_trigg_mgw);
    1833. 

  1833. 

  1834.     sgsn = proto_tree_add_text(trigg_tree, tvb, offset + 3, 2, "SGSN");
    1835. 

  1835.     sgsn_tree = proto_item_add_subtree(sgsn, ett_gtpv2_tra_info_trigg_sgsn);
    1836. 

  1836. 

  1837.     ggsn = proto_tree_add_text(trigg_tree, tvb, offset + 5, 1, "GGSN");
    1838. 

  1838.     ggsn_tree = proto_item_add_subtree(ggsn, ett_gtpv2_tra_info_trigg_ggsn);
    1839. 

  1839. 

  1840.     bm_sc = proto_tree_add_text(trigg_tree, tvb, offset + 6, 1, "BM-SC");
    1841. 

  1841.     bm_sc_tree = proto_item_add_subtree(bm_sc, ett_gtpv2_tra_info_trigg_bm_sc);
    1842. 

  1842. 

  1843.     sgw_mme = proto_tree_add_text(trigg_tree, tvb, offset + 7, 1, "SGW MME");
    1844. 

  1844.     sgw_mme_tree = proto_item_add_subtree(sgw_mme, ett_gtpv2_tra_info_trigg_sgw_mme);
    1845. 

  1845. 

  1846. 	    /* MSC Server - 2 octets */
    1847. 

  1847.     proto_tree_add_item(msc_server_tree, hf_gtpv2_tra_info_msc_momt_calls,		tvb, offset, 1, FALSE);
    1848. 

  1848.     proto_tree_add_item(msc_server_tree, hf_gtpv2_tra_info_msc_momt_sms,		tvb, offset, 1, FALSE);
    1849. 

  1849.     proto_tree_add_item(msc_server_tree, hf_gtpv2_tra_info_msc_lu_imsi_ad,		tvb, offset, 1, FALSE);
    1850. 

  1850.     proto_tree_add_item(msc_server_tree, hf_gtpv2_tra_info_msc_handovers,		tvb, offset, 1, FALSE);
    1851. 

  1851.     proto_tree_add_item(msc_server_tree, hf_gtpv2_tra_info_msc_ss,			tvb, offset, 1, FALSE);
    1852. 

  1852.     bit_offset = offset<<3;
    1853. 

  1853.     proto_tree_add_bits_item(msc_server_tree, hf_gtpv2_spare_bits,			tvb, bit_offset, 3, FALSE);
    1854. 

  1854.     offset += 1;
    1855. 

  1855.     bit_offset = offset<<3;
    1856. 

  1856.     proto_tree_add_bits_item(msc_server_tree, hf_gtpv2_spare_bits,			tvb, bit_offset, 8, FALSE);
    1857. 

  1857.     offset += 1;
    1858. 

  1858. 

  1859. 	    /* MGW - 1 octet */
    1860. 

  1860.     proto_tree_add_item(mgw_tree, hf_gtpv2_tra_info_mgw_context,		tvb, offset, 1, FALSE);
    1861. 

  1861.     bit_offset = offset<<3;
    1862. 

  1862.     proto_tree_add_bits_item(mgw_tree, hf_gtpv2_spare_bits,			tvb, bit_offset, 7, FALSE);
    1863. 

  1863.     offset += 1;
    1864. 

  1864. 	    /* SGSN - 2 octets */
    1865. 

  1865.     proto_tree_add_item(sgsn_tree, hf_gtpv2_tra_info_sgsn_pdp_context,		tvb, offset, 1, FALSE);
    1866. 

  1866.     proto_tree_add_item(sgsn_tree, hf_gtpv2_tra_info_sgsn_momt_sms,		tvb, offset, 1, FALSE);
    1867. 

  1867.     proto_tree_add_item(sgsn_tree, hf_gtpv2_tra_info_sgsn_rau_gprs_ad,		tvb, offset, 1, FALSE);
    1868. 

  1868.     proto_tree_add_item(sgsn_tree, hf_gtpv2_tra_info_sgsn_mbms,			tvb, offset, 1, FALSE);
    1869. 

  1869.     bit_offset = offset<<3;
    1870. 

  1870.     proto_tree_add_bits_item(sgsn_tree, hf_gtpv2_spare_bits,			tvb, bit_offset, 4, FALSE);
    1871. 

  1871.     offset += 1;
    1872. 

  1872.     proto_tree_add_item(sgsn_tree, hf_gtpv2_tra_info_sgsn_reserved,		tvb, offset, 1, FALSE);
    1873. 

  1873.     bit_offset = offset<<3;
    1874. 

  1874.     proto_tree_add_bits_item(sgsn_tree, hf_gtpv2_reserved,			tvb, bit_offset, 8, FALSE);
    1875. 

  1875.     offset += 1;
    1876. 

  1876. 	    /* GGSN - 1 octet */
    1877. 

  1877.     proto_tree_add_item(ggsn_tree, hf_gtpv2_tra_info_ggsn_pdp,			tvb, offset, 1, FALSE);
    1878. 

  1878.     proto_tree_add_item(ggsn_tree, hf_gtpv2_tra_info_ggsn_mbms,			tvb, offset, 1, FALSE);
    1879. 

  1879.     bit_offset = offset<<3;
    1880. 

  1880.     proto_tree_add_bits_item(ggsn_tree, hf_gtpv2_spare_bits,			tvb, bit_offset, 6, FALSE);
    1881. 

  1881.     offset += 1;
    1882. 

  1882. 	    /* BM-SC - 1 octet */
    1883. 

  1883.     proto_tree_add_item(bm_sc_tree, hf_gtpv2_tra_info_bm_sc,			tvb, offset, 1, FALSE);
    1884. 

  1884.     bit_offset = offset<<3;
    1885. 

  1885.     proto_tree_add_bits_item(bm_sc_tree, hf_gtpv2_spare_bits,			tvb, bit_offset, 7, FALSE);
    1886. 

  1886.     offset += 1;
    1887. 

  1887. 	    /* MME/SGW - 1 octet */
    1888. 

  1888.     proto_tree_add_item(sgw_mme_tree, hf_gtpv2_tra_info_mme_sgw_ss,		tvb, offset, 1, FALSE);
    1889. 

  1889.     proto_tree_add_item(sgw_mme_tree, hf_gtpv2_tra_info_mme_sgw_sr,		tvb, offset, 1, FALSE);
    1890. 

  1890.     proto_tree_add_item(sgw_mme_tree, hf_gtpv2_tra_info_mme_sgw_iataud,		tvb, offset, 1, FALSE);
    1891. 

  1891.     bit_offset = offset<<3;
    1892. 

  1892.     proto_tree_add_bits_item(sgw_mme_tree, hf_gtpv2_spare_bits,			tvb, bit_offset, 5, FALSE);
    1893. 

  1893.     offset += 1;
    1894. 

  1894. 

  1895.     /* Create NE Types subtree */
    1896. 

  1896.     ne_types = proto_tree_add_text(tree, tvb, offset, 2, "List of NE Types");
    1897. 

  1897.     ne_types_tree = proto_item_add_subtree(ne_types, ett_gtpv2_tra_info_ne_types);
    1898. 

  1898. 

  1899. 

  1900.     /* List of NE Types */
    1901. 

  1901.     proto_tree_add_item(ne_types_tree, hf_gtpv2_tra_info_lne_msc_s,		tvb, offset, 1, FALSE);
    1902. 

  1902.     proto_tree_add_item(ne_types_tree, hf_gtpv2_tra_info_lne_mgw,		tvb, offset, 1, FALSE);
    1903. 

  1903.     proto_tree_add_item(ne_types_tree, hf_gtpv2_tra_info_lne_sgsn,		tvb, offset, 1, FALSE);
    1904. 

  1904.     proto_tree_add_item(ne_types_tree, hf_gtpv2_tra_info_lne_ggsn,		tvb, offset, 1, FALSE);
    1905. 

  1905.     proto_tree_add_item(ne_types_tree, hf_gtpv2_tra_info_lne_rnc,		tvb, offset, 1, FALSE);
    1906. 

  1906.     proto_tree_add_item(ne_types_tree, hf_gtpv2_tra_info_lne_bm_sc,		tvb, offset, 1, FALSE);
    1907. 

  1907.     proto_tree_add_item(ne_types_tree, hf_gtpv2_tra_info_lne_mme,		tvb, offset, 1, FALSE);
    1908. 

  1908.     proto_tree_add_item(ne_types_tree, hf_gtpv2_tra_info_lne_sgw,		tvb, offset, 1, FALSE);
    1909. 

  1909.     offset += 1;
    1910. 

  1910.     proto_tree_add_item(ne_types_tree, hf_gtpv2_tra_info_lne_pdn_gw,		tvb, offset, 1, FALSE);
    1911. 

  1911.     proto_tree_add_item(ne_types_tree, hf_gtpv2_tra_info_lne_enb,		tvb, offset, 1, FALSE);
    1912. 

  1912.     bit_offset = offset<<3;
    1913. 

  1913.     proto_tree_add_bits_item(ne_types_tree, hf_gtpv2_spare_bits,		tvb, bit_offset, 6, FALSE);
    1914. 

  1914.     offset += 1;
    1915. 

  1915. 

  1916.     /* Trace Depth Length */
    1917. 

  1917.     tdl = tvb_get_guint8(tvb, offset);
    1918. 

  1918.     proto_tree_add_item(tree, hf_gtpv2_tra_info_tdl,				tvb, offset, 1, FALSE);
    1919. 

  1919.     offset += 1;
    1920. 

  1920. 

  1921.     /* Trace Depth List
    1922. 

  1922.      * Will be displayed if length of Trace Depth Length is > 0
    1923. 

  1923.      * The list will only contains UTF8String, RAW DATA
    1924. 

  1924.      */
    1925. 

  1925.     proto_tree_add_text(tree, tvb, offset, tdl, "Trace Depth List: %s", tvb_bytes_to_str(tvb, offset, tdl));
    1926. 

  1926.     offset += tdl;
    1927. 

  1927. 

  1928.     /* Set up subtree interfaces and put all interfaces under it */
    1929. 

  1929.     interfaces = proto_tree_add_text(tree, tvb, offset, 12, "List of Interfaces");
    1930. 

  1930.     interfaces_tree = proto_item_add_subtree(interfaces, ett_gtpv2_tra_info_interfaces);
    1931. 

  1931. 

  1932.     /* Create all subtrees */
    1933. 

  1933.     imsc_server = proto_tree_add_text(interfaces_tree, tvb, offset, 2, "MSC Server");
    1934. 

  1934.     imsc_server_tree = proto_item_add_subtree(imsc_server, ett_gtpv2_tra_info_interfaces_imsc_server);
    1935. 

  1935. 

  1936.     lmgw = proto_tree_add_text(interfaces_tree, tvb, offset + 2, 1, "MGW");
    1937. 

  1937.     lmgw_tree = proto_item_add_subtree(lmgw, ett_gtpv2_tra_info_interfaces_lmgw);
    1938. 

  1938. 

  1939.     lsgsn = proto_tree_add_text(interfaces_tree, tvb, offset + 3, 2, "SGSN");
    1940. 

  1940.     lsgsn_tree = proto_item_add_subtree(lsgsn, ett_gtpv2_tra_info_interfaces_lsgsn);
    1941. 

  1941. 

  1942.     lggsn = proto_tree_add_text(interfaces_tree, tvb, offset + 5, 1, "GGSN");
    1943. 

  1943.     lggsn_tree = proto_item_add_subtree(lggsn, ett_gtpv2_tra_info_interfaces_lggsn);
    1944. 

  1944. 

  1945.     lrnc = proto_tree_add_text(interfaces_tree, tvb, offset + 6, 1, "RNC");
    1946. 

  1946.     lrnc_tree = proto_item_add_subtree(lrnc, ett_gtpv2_tra_info_interfaces_lrnc);
    1947. 

  1947. 

  1948.     lbm_sc = proto_tree_add_text(interfaces_tree, tvb, offset + 7, 1, "BM-SC");
    1949. 

  1949.     lbm_sc_tree = proto_item_add_subtree(lbm_sc, ett_gtpv2_tra_info_interfaces_lbm_sc);
    1950. 

  1950. 

  1951.     lmme = proto_tree_add_text(interfaces_tree, tvb, offset + 8, 1, "MME");
    1952. 

  1952.     lmme_tree = proto_item_add_subtree(lmme, ett_gtpv2_tra_info_interfaces_lmme);
    1953. 

  1953. 

  1954.     lsgw = proto_tree_add_text(interfaces_tree, tvb, offset + 9, 1, "SGW");
    1955. 

  1955.     lsgw_tree = proto_item_add_subtree(lsgw, ett_gtpv2_tra_info_interfaces_lsgw);
    1956. 

  1956. 

  1957.     lpdn_gw = proto_tree_add_text(interfaces_tree, tvb, offset + 10, 1, "PDN GW");
    1958. 

  1958.     lpdn_gw_tree = proto_item_add_subtree(lpdn_gw, ett_gtpv2_tra_info_interfaces_lpdn_gw);
    1959. 

  1959. 

  1960.     lenb = proto_tree_add_text(interfaces_tree, tvb, offset + 11, 1, "eNB");
    1961. 

  1961.     lenb_tree = proto_item_add_subtree(lenb, ett_gtpv2_tra_info_interfaces_lpdn_lenb);
    1962. 

  1962. 

  1963. 	    /* MSC Server - 2 octests */
    1964. 

  1964.     proto_tree_add_item(imsc_server_tree, hf_gtpv2_tra_info_lmsc_a,			tvb, offset, 1, FALSE);
    1965. 

  1965.     proto_tree_add_item(imsc_server_tree, hf_gtpv2_tra_info_lmsc_lu,			tvb, offset, 1, FALSE);
    1966. 

  1966.     proto_tree_add_item(imsc_server_tree, hf_gtpv2_tra_info_lmsc_mc,			tvb, offset, 1, FALSE);
    1967. 

  1967.     proto_tree_add_item(imsc_server_tree, hf_gtpv2_tra_info_lmsc_map_g,			tvb, offset, 1, FALSE);
    1968. 

  1968.     proto_tree_add_item(imsc_server_tree, hf_gtpv2_tra_info_lmsc_map_b,			tvb, offset, 1, FALSE);
    1969. 

  1969.     proto_tree_add_item(imsc_server_tree, hf_gtpv2_tra_info_lmsc_map_e,			tvb, offset, 1, FALSE);
    1970. 

  1970.     proto_tree_add_item(imsc_server_tree, hf_gtpv2_tra_info_lmsc_map_f,			tvb, offset, 1, FALSE);
    1971. 

  1971.     proto_tree_add_item(imsc_server_tree, hf_gtpv2_tra_info_lmsc_cap,			tvb, offset, 1, FALSE);
    1972. 

  1972.     offset += 1;
    1973. 

  1973.     proto_tree_add_item(imsc_server_tree, hf_gtpv2_tra_info_lmsc_map_d,			tvb, offset, 1, FALSE);
    1974. 

  1974.     proto_tree_add_item(imsc_server_tree, hf_gtpv2_tra_info_lmsc_map_c,			tvb, offset, 1, FALSE);
    1975. 

  1975.     bit_offset = offset<<3;
    1976. 

  1976.     proto_tree_add_bits_item(imsc_server_tree, hf_gtpv2_spare_bits,			tvb, bit_offset, 6, FALSE);
    1977. 

  1977.     offset += 1;
    1978. 

  1978. 	    /* MGW - 1 octet */
    1979. 

  1979.     proto_tree_add_item(lmgw_tree, hf_gtpv2_tra_info_lmgw_mc,				tvb, offset, 1, FALSE);
    1980. 

  1980.     proto_tree_add_item(lmgw_tree, hf_gtpv2_tra_info_lmgw_nb_up,			tvb, offset, 1, FALSE);
    1981. 

  1981.     proto_tree_add_item(lmgw_tree, hf_gtpv2_tra_info_lmgw_lu_up,			tvb, offset, 1, FALSE);
    1982. 

  1982.     bit_offset = offset<<3;
    1983. 

  1983.     proto_tree_add_bits_item(lmgw_tree, hf_gtpv2_spare_bits,				tvb, bit_offset, 5, FALSE);
    1984. 

  1984.     offset += 1;
    1985. 

  1985. 	    /* SGSN - 2 octets */
    1986. 

  1986.     proto_tree_add_item(lsgsn_tree, hf_gtpv2_tra_info_lsgsn_gb,				tvb, offset, 1, FALSE);
    1987. 

  1987.     proto_tree_add_item(lsgsn_tree, hf_gtpv2_tra_info_lsgsn_lu,				tvb, offset, 1, FALSE);
    1988. 

  1988.     proto_tree_add_item(lsgsn_tree, hf_gtpv2_tra_info_lsgsn_gn,				tvb, offset, 1, FALSE);
    1989. 

  1989.     proto_tree_add_item(lsgsn_tree, hf_gtpv2_tra_info_lsgsn_map_gr,			tvb, offset, 1, FALSE);
    1990. 

  1990.     proto_tree_add_item(lsgsn_tree, hf_gtpv2_tra_info_lsgsn_map_gd,			tvb, offset, 1, FALSE);
    1991. 

  1991.     proto_tree_add_item(lsgsn_tree, hf_gtpv2_tra_info_lsgsn_map_gf,			tvb, offset, 1, FALSE);
    1992. 

  1992.     proto_tree_add_item(lsgsn_tree, hf_gtpv2_tra_info_lsgsn_gs,				tvb, offset, 1, FALSE);
    1993. 

  1993.     proto_tree_add_item(lsgsn_tree, hf_gtpv2_tra_info_lsgsn_ge,				tvb, offset, 1, FALSE);
    1994. 

  1994.     offset += 1;
    1995. 

  1995.     bit_offset = offset<<3;
    1996. 

  1996.     proto_tree_add_bits_item(lsgsn_tree, hf_gtpv2_spare_bits,				tvb, bit_offset, 8, FALSE);
    1997. 

  1997.     offset += 1;
    1998. 

  1998. 

  1999. 	    /* GGSN - 1 octet */
    2000. 

  2000.     proto_tree_add_item(lggsn_tree, hf_gtpv2_tra_info_lggsn_gn,				tvb, offset, 1, FALSE);
    2001. 

  2001.     proto_tree_add_item(lggsn_tree, hf_gtpv2_tra_info_lggsn_gi,				tvb, offset, 1, FALSE);
    2002. 

  2002.     proto_tree_add_item(lggsn_tree, hf_gtpv2_tra_info_lggsn_gmb,			tvb, offset, 1, FALSE);
    2003. 

  2003.     bit_offset = offset<<3;
    2004. 

  2004.     proto_tree_add_bits_item(lggsn_tree, hf_gtpv2_spare_bits,				tvb, bit_offset, 5, FALSE);
    2005. 

  2005.     offset += 1;
    2006. 

  2006. 	    /* RNC - 1 octet */
    2007. 

  2007.     proto_tree_add_item(lrnc_tree, hf_gtpv2_tra_info_lrnc_lu,				tvb, offset, 1, FALSE);
    2008. 

  2008.     proto_tree_add_item(lrnc_tree, hf_gtpv2_tra_info_lrnc_lur,				tvb, offset, 1, FALSE);
    2009. 

  2009.     proto_tree_add_item(lrnc_tree, hf_gtpv2_tra_info_lrnc_lub,				tvb, offset, 1, FALSE);
    2010. 

  2010.     proto_tree_add_item(lrnc_tree, hf_gtpv2_tra_info_lrnc_uu,				tvb, offset, 1, FALSE);
    2011. 

  2011.     bit_offset = offset<<3;
    2012. 

  2012.     proto_tree_add_bits_item(lrnc_tree, hf_gtpv2_spare_bits,				tvb, bit_offset, 4, FALSE);
    2013. 

  2013.     offset += 1;
    2014. 

  2014. 	    /* BM_SC - 1 octet */
    2015. 

  2015.     proto_tree_add_item(lbm_sc_tree, hf_gtpv2_tra_info_lbm_sc_gmb,			tvb, offset, 1, FALSE);
    2016. 

  2016.     bit_offset = offset<<3;
    2017. 

  2017.     proto_tree_add_bits_item(lbm_sc_tree, hf_gtpv2_spare_bits,				tvb, bit_offset, 7, FALSE);
    2018. 

  2018.     offset += 1;
    2019. 

  2019. 	    /* MME - 1 octet */
    2020. 

  2020.     proto_tree_add_item(lmme_tree, hf_gtpv2_tra_info_lmme_s1_mme,			tvb, offset, 1, FALSE);
    2021. 

  2021.     proto_tree_add_item(lmme_tree, hf_gtpv2_tra_info_lmme_s3,				tvb, offset, 1, FALSE);
    2022. 

  2022.     proto_tree_add_item(lmme_tree, hf_gtpv2_tra_info_lmme_s6a,				tvb, offset, 1, FALSE);
    2023. 

  2023.     proto_tree_add_item(lmme_tree, hf_gtpv2_tra_info_lmme_s10,				tvb, offset, 1, FALSE);
    2024. 

  2024.     proto_tree_add_item(lmme_tree, hf_gtpv2_tra_info_lmme_s11,				tvb, offset, 1, FALSE);
    2025. 

  2025.     bit_offset = offset<<3;
    2026. 

  2026.     proto_tree_add_bits_item(lmme_tree, hf_gtpv2_spare_bits,				tvb, bit_offset, 3, FALSE);
    2027. 

  2027.     offset += 1;
    2028. 

  2028. 	    /* SGW - 1 octet */
    2029. 

  2029.     proto_tree_add_item(lsgw_tree, hf_gtpv2_tra_info_lsgw_s4,				tvb, offset, 1, FALSE);
    2030. 

  2030.     proto_tree_add_item(lsgw_tree, hf_gtpv2_tra_info_lsgw_s5,				tvb, offset, 1, FALSE);
    2031. 

  2031.     proto_tree_add_item(lsgw_tree, hf_gtpv2_tra_info_lsgw_s8b,				tvb, offset, 1, FALSE);
    2032. 

  2032.     proto_tree_add_item(lsgw_tree, hf_gtpv2_tra_info_lsgw_s11,				tvb, offset, 1, FALSE);
    2033. 

  2033.     bit_offset = offset<<3;
    2034. 

  2034.     proto_tree_add_bits_item(lsgw_tree, hf_gtpv2_spare_bits,				tvb, bit_offset, 4, FALSE);
    2035. 

  2035.     offset += 1;
    2036. 

  2036. 	    /* PDN GW - 1 octet */
    2037. 

  2037.     proto_tree_add_item(lpdn_gw_tree, hf_gtpv2_tra_info_lpdn_gw_s2a,			tvb, offset, 1, FALSE);
    2038. 

  2038.     proto_tree_add_item(lpdn_gw_tree, hf_gtpv2_tra_info_lpdn_gw_s2b,			tvb, offset, 1, FALSE);
    2039. 

  2039.     proto_tree_add_item(lpdn_gw_tree, hf_gtpv2_tra_info_lpdn_gw_s2c,			tvb, offset, 1, FALSE);
    2040. 

  2040.     proto_tree_add_item(lpdn_gw_tree, hf_gtpv2_tra_info_lpdn_gw_s5,			tvb, offset, 1, FALSE);
    2041. 

  2041.     proto_tree_add_item(lpdn_gw_tree, hf_gtpv2_tra_info_lpdn_gw_s6c,			tvb, offset, 1, FALSE);
    2042. 

  2042.     proto_tree_add_item(lpdn_gw_tree, hf_gtpv2_tra_info_lpdn_gw_gx,			tvb, offset, 1, FALSE);
    2043. 

  2043.     proto_tree_add_item(lpdn_gw_tree, hf_gtpv2_tra_info_lpdn_gw_s8b,			tvb, offset, 1, FALSE);
    2044. 

  2044.     proto_tree_add_item(lpdn_gw_tree, hf_gtpv2_tra_info_lpdn_gw_sgi,			tvb, offset, 1, FALSE);
    2045. 

  2045.     offset += 1;
    2046. 

  2046. 	    /* eNB - 1 octet */
    2047. 

  2047.     proto_tree_add_item(lenb_tree, hf_gtpv2_tra_info_lenb_s1_mme,			tvb, offset, 1, FALSE);
    2048. 

  2048.     proto_tree_add_item(lenb_tree, hf_gtpv2_tra_info_lenb_x2,				tvb, offset, 1, FALSE);
    2049. 

  2049.     proto_tree_add_item(lenb_tree, hf_gtpv2_tra_info_lenb_uu,				tvb, offset, 1, FALSE);
    2050. 

  2050.     bit_offset = offset<<3;
    2051. 

  2051.     proto_tree_add_bits_item(lenb_tree, hf_gtpv2_spare_bits,				tvb, bit_offset, 5, FALSE);
    2052. 

  2052. 

  2053.     /*--------------------------------------------------
    2054. 

  2054.     * offset += 1;
    2055. 

  2055.     *--------------------------------------------------*/
    2056. 

  2056. 

  2057.     /* IP Address of Trace Collection Entity */
    2058. 

  2058.     while ( (offset + 4) <= length ) {
    2059. 

  2059. 	    offset += 1;
    2060. 

  2060. 	    proto_tree_add_item(tree, hf_gtpv2_ipv4_addr, tvb, offset, 4, FALSE);
    2061. 

  2061. 	    offset += 3;
    2062. 

  2062.     }
    2063. 

  2063. }
    2064. 

  2064. 

  2065. /*
    2066. 

  2066.  * 8.33 Paging Cause
    2067. 

  2067.  * 8.33 Void (TS 129 274 V9.4.0 (2010-10))
    2068. 

  2068.  */
    2069. 

  2069. 

  2070. /* 8.35 Procedure Transaction ID (PTI) */
    2071. 

  2071. static void
    2072. 

  2072. dissect_gtpv2_pti(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    2073. 

  2073. {
    2074. 

  2074.     proto_tree_add_item(tree, hf_gtpv2_pti, tvb, 0, 1, FALSE);
    2075. 

  2075. }
    2076. 

  2076. /*
    2077. 

  2077.  * 8.36 DRX Parameter
    2078. 

  2078.  */
    2079. 

  2079. static void
    2080. 

  2080. dissect_gtpv2_drx_param(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
    2081. 

  2081. {
    2082. 

  2082.     int offset = 0;
    2083. 

  2083. 

  2084.     /* 36.413 : 9.2.1.17	Paging Cause, void */
    2085. 

  2085.     proto_tree_add_text(tree, tvb, offset, length, "DRX parameter: %s", tvb_bytes_to_str(tvb, offset, (length )));
    2086. 

  2086. }
    2087. 

  2087. 

  2088. /*
    2089. 

  2089.  * 8.37 UE Network Capability
    2090. 

  2090.  * UE Network Capability is coded as depicted in Figure 8.37-1. Actual coding of the UE Network Capability field is
    2091. 

  2091.  * defined in 3GPP TS 24.301
    2092. 

  2092.  */
    2093. 

  2093. static void
    2094. 

  2094. dissect_gtpv2_ue_net_capability(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
    2095. 

  2095. {
    2096. 

  2096.     de_emm_ue_net_cap(tvb, tree, pinfo, 0, length, NULL, 0);
    2097. 

  2097. 

  2098. }
    2099. 

  2099. /*
    2100. 

  2100.  * 8.38 MM Context
    2101. 

  2101.  */
    2102. 

  2102. static const value_string gtpv2_mm_context_security_mode[] = {
    2103. 

  2103. 	{0, "GSM Key and Triplets"},
    2104. 

  2104. 	{1, "UMTS Key, Used Cipher and Quintuplets"},
    2105. 

  2105. 	{2, "GSM Key, Used Cipher and Quintuplets"},
    2106. 

  2106. 	{3, "UMTS Key and Quintuplets"},
    2107. 

  2107. 	{4, "EPS Security Context, Quadruplets and Quintuplets"	},
    2108. 

  2108. 	{5, "UMTS Key, Quadruplets and Quintuplets"},
    2109. 

  2109. 	{0, NULL																									}
    2110. 

  2110. };
    2111. 

  2111. 

  2112. static const true_false_string gtpv2_nhi_vals = {
    2113. 

  2113. 	"NH (Next Hop) and NCC (Next Hop Chaining Count) are both present",
    2114. 

  2114. 	"NH (Next Hop) and NCC (Next Hop Chaining Count) not present",
    2115. 

  2115. };
    2116. 

  2116. 

  2117. /* Table 8.38-2: Used NAS Cipher Values */
    2118. 

  2118. 

  2119. static const value_string gtpv2_mm_context_unc_vals[] = {
    2120. 

  2120. 	{0, "No ciphering"},
    2121. 

  2121. 	{1, "GEA/1"},
    2122. 

  2122. 	{2, "GEA/2"},
    2123. 

  2123. 	{3, "GEA/3"},
    2124. 

  2124. 	{4, "GEA/4"	},
    2125. 

  2125. 	{5, "GEA/5"},
    2126. 

  2126. 	{6, "GEA/6"},
    2127. 

  2127. 	{7, "GEA/7"},
    2128. 

  2128. 	{0, NULL																									}
    2129. 

  2129. };
    2130. 

  2130. 

  2131. /* Table 8.38-4: Used NAS integrity protection algorithm Values */
    2132. 

  2132. static const value_string gtpv2_mm_context_unipa_vals[] = {
    2133. 

  2133. 	{0, "No ciphering"},
    2134. 

  2134. 	{1, "128-EEA1"},
    2135. 

  2135. 	{2, "128-EEA2"},
    2136. 

  2136. 	{3, "EEA3"},
    2137. 

  2137. 	{4, "EEA4"	},
    2138. 

  2138. 	{5, "EEA5"},
    2139. 

  2139. 	{6, "EEA6"},
    2140. 

  2140. 	{7, "EEA7"},
    2141. 

  2141. 	{0, NULL																									}
    2142. 

  2142. };
    2143. 

  2143. 

  2144. 

  2145. static void
    2146. 

  2146. dissect_gtpv2_mm_context_gsm_t(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree _U_, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    2147. 

  2147. {
    2148. 

  2148.     proto_item   *flag;
    2149. 

  2149.     proto_tree  *flag_tree;
    2150. 

  2150.     int          offset;
    2151. 

  2151. 

  2152.     offset = 0;
    2153. 

  2153.     flag = proto_tree_add_text(tree, tvb, offset, 3, "MM Context flags");
    2154. 

  2154.     flag_tree = proto_item_add_subtree(flag, ett_gtpv2_mm_context_flag);
    2155. 

  2155. 

  2156.     /* Security Mode | Spare | DRXI | CKSN */
    2157. 

  2157.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_sm, tvb, offset, 1, FALSE);
    2158. 

  2158. 

  2159.     proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, offset<<3, 1, FALSE);
    2160. 

  2160.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_drxi, tvb, offset, 1, FALSE);
    2161. 

  2161.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_cksn, tvb, offset, 1, FALSE);
    2162. 

  2162.     offset += 1;
    2163. 

  2163.     /* Number of Triplet | Spare  | UAMB RI | SAMB RI */
    2164. 

  2164.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_nr_tri, tvb, offset, 1, FALSE);
    2165. 

  2165.     proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, offset<<3, 5, FALSE);
    2166. 

  2166.     offset += 1;
    2167. 

  2167. 

  2168.     proto_tree_add_text(flag_tree, tvb, offset, -1, "The rest of the IE not dissected yet");
    2169. 

  2169. }
    2170. 

  2170. 

  2171. static void
    2172. 

  2172. dissect_gtpv2_mm_context_utms_cq(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
    2173. 

  2173. {
    2174. 

  2174.     proto_item 	*flag;
    2175. 

  2175.     proto_tree	*flag_tree;
    2176. 

  2176.     int		offset;
    2177. 

  2177. 

  2178.     offset = 0;
    2179. 

  2179.     flag = proto_tree_add_text(tree, tvb, offset, 3, "MM Context flags");
    2180. 

  2180.     flag_tree = proto_item_add_subtree(flag, ett_gtpv2_mm_context_flag);
    2181. 

  2181. 

  2182.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_sm, tvb, offset, 1, FALSE);
    2183. 

  2183. 

  2184.     proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, ((offset<<3)+3), 1, FALSE);
    2185. 

  2185.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_drxi, tvb, offset, 1, FALSE);
    2186. 

  2186.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_cksn_ksi, tvb, offset, 1, FALSE);
    2187. 

  2187.     offset += 1;
    2188. 

  2188.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_nr_qui, tvb, offset, 1, FALSE);
    2189. 

  2189.     proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, offset<<3, 5, FALSE);
    2190. 

  2190.     offset += 1;
    2191. 

  2191. 

  2192.     proto_tree_add_text(flag_tree, tvb, offset, -1, "The rest of the IE not dissected yet");
    2193. 

  2193. }
    2194. 

  2194. 

  2195. static void
    2196. 

  2196. dissect_gtpv2_mm_context_gsm_cq(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
    2197. 

  2197. {
    2198. 

  2198.     proto_item 	*flag;
    2199. 

  2199.     proto_tree	*flag_tree;
    2200. 

  2200.     int		offset;
    2201. 

  2201. 

  2202. 

  2203.     offset = 0;
    2204. 

  2204.     flag = proto_tree_add_text(tree, tvb, offset, 3, "MM Context flags");
    2205. 

  2205.     flag_tree = proto_item_add_subtree(flag, ett_gtpv2_mm_context_flag);
    2206. 

  2206. 

  2207.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_sm, tvb, offset, 1, FALSE);
    2208. 

  2208. 

  2209.     proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, ((offset<<3)+3), 1, FALSE);
    2210. 

  2210.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_drxi, tvb, offset, 1, FALSE);
    2211. 

  2211.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_cksn_ksi, tvb, offset, 1, FALSE);
    2212. 

  2212.     offset += 1;
    2213. 

  2213.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_nr_qui, tvb, offset, 1, FALSE);
    2214. 

  2214.     proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, offset<<3, 5, FALSE);
    2215. 

  2215.     offset += 1;
    2216. 

  2216. 

  2217.     proto_tree_add_text(flag_tree, tvb, offset, -1, "The rest of the IE not dissected yet");
    2218. 

  2218. 

  2219. }
    2220. 

  2220. 

  2221. static void
    2222. 

  2222. dissect_gtpv2_mm_context_utms_q(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
    2223. 

  2223. {
    2224. 

  2224.     proto_item 	*flag;
    2225. 

  2225.     proto_tree	*flag_tree;
    2226. 

  2226.     int		offset;
    2227. 

  2227. 

  2228.     offset = 0;
    2229. 

  2229.     flag = proto_tree_add_text(tree, tvb, offset, 3, "MM Context flags");
    2230. 

  2230.     flag_tree = proto_item_add_subtree(flag, ett_gtpv2_mm_context_flag);
    2231. 

  2231. 

  2232. 

  2233.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_sm, tvb, offset, 1, FALSE);
    2234. 

  2234. 

  2235.     proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, ((offset<<3)+3), 1, FALSE);
    2236. 

  2236.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_drxi, tvb, offset, 1, FALSE);
    2237. 

  2237.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_ksi, tvb, offset, 1, FALSE);
    2238. 

  2238.     offset += 1;
    2239. 

  2239.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_nr_qui, tvb, offset, 1, FALSE);
    2240. 

  2240.     proto_tree_add_bits_item(flag_tree, hf_gtpv2_spare_bits, tvb, offset<<3, 5, FALSE);
    2241. 

  2241.     offset += 1;
    2242. 

  2242. 

  2243.     proto_tree_add_text(flag_tree, tvb, offset, -1, "The rest of the IE not dissected yet");
    2244. 

  2244. }
    2245. 

  2245. 

  2246. /* EPS Security Context and Quadruplets */
    2247. 

  2247. static void
    2248. 

  2248. dissect_gtpv2_mm_context_eps_qq(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
    2249. 

  2249. {
    2250. 

  2250.     proto_item 	*flag/*, *auth_qua, *net_cap*/;
    2251. 

  2251.     proto_tree	*flag_tree/*, *auth_qua_tree, *net_cap_tree*/;
    2252. 

  2252.     guint32	offset/*, nas_dc, nas_uc, i*/;
    2253. 

  2253.     /*guint8	nhi, drxi, nr_qui, nr_qua, tmp;*/
    2254. 

  2254. 

  2255.     offset = 0;
    2256. 

  2256. 

  2257.     /*nhi = (tvb_get_guint8(tvb, offset) & 0x10);*/
    2258. 

  2258.     /*drxi = (tvb_get_guint8(tvb, offset) & 0x08);*/
    2259. 

  2259. 

  2260.     flag = proto_tree_add_text(tree, tvb, offset, 3, "MM Context flags");
    2261. 

  2261.     flag_tree = proto_item_add_subtree(flag, ett_gtpv2_mm_context_flag);
    2262. 

  2262. 

  2263.     /* Octet 5
    2264. 

  2264.      * Bits
    2265. 

  2265.      * 8      7     6     5     4      3      2      1
    2266. 

  2266.      * Security Mode    | NHI | DRXI | KSIASME
    2267. 

  2267.      */
    2268. 

  2268.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_sm, tvb, offset, 1, FALSE);
    2269. 

  2269.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_nhi, tvb, offset, 1, FALSE);
    2270. 

  2270.     /* If NHI (Next Hop Indicator), bit 5 of octet 5, is set to "1",
    2271. 

  2271.      * then the optional parameters NH (Next Hop) and NCC (Next
    2272. 

  2272.      * Hop Chaining Count) are both present, otherwise their octets are not present.
    2273. 

  2273.      */
    2274. 

  2274.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_drxi, tvb, offset, 1, FALSE);
    2275. 

  2275.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_ksi_a, tvb, offset, 1, FALSE);
    2276. 

  2276.     offset += 1;
    2277. 

  2277. 

  2278.     /* Octet 6
    2279. 

  2279.      * Bits
    2280. 

  2280.      * 8      7     6     5     4      3      2      1
    2281. 

  2281.      * Number of        | Number of       | UAMB  | OSCI
    2282. 

  2282.      * Quintuplets      | Quadruplet      |  RI   |
    2283. 

  2283.      */
    2284. 

  2284.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_nr_qui, tvb, offset, 1, FALSE);
    2285. 

  2285.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_nr_qua, tvb, offset, 1, FALSE);
    2286. 

  2286. 

  2287.     /* Octet 7 */
    2288. 

  2288.     /* Used NAS integrity protection algorithm */
    2289. 

  2289.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_unipa, tvb, offset, 1, FALSE);
    2290. 

  2290.     /* Used NAS Cipher */
    2291. 

  2291.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_unc,	tvb, offset, 1, FALSE);
    2292. 

  2292.     offset += 1;
    2293. 

  2293. 

  2294.     /* Octet 8-10 NAS Downlink Count*/
    2295. 

  2295.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_nas_dl_cnt,	tvb, offset, 1, FALSE);
    2296. 

  2296.     offset += 3;
    2297. 

  2297. 

  2298.     /* Octet 11-13 NAS Uplink Count */
    2299. 

  2299.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_nas_ul_cnt,	tvb, offset, 1, FALSE);
    2300. 

  2300.     offset += 3;
    2301. 

  2301. 

  2302.     proto_tree_add_text(flag_tree, tvb, offset, -1, "The rest of the IE not dissected yet");
    2303. 

  2303. 

  2304. }
    2305. 

  2305. 

  2306. static void
    2307. 

  2307. dissect_gtpv2_mm_context_utms_qq(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
    2308. 

  2308. {
    2309. 

  2309.     proto_item 	*flag;
    2310. 

  2310.     proto_tree	*flag_tree;
    2311. 

  2311.     guint32		offset;
    2312. 

  2312. 

  2313.     offset = 0;
    2314. 

  2314.     flag = proto_tree_add_text(tree, tvb, offset, 3, "MM Context flags");
    2315. 

  2315.     flag_tree = proto_item_add_subtree(flag, ett_gtpv2_mm_context_flag);
    2316. 

  2316. 

  2317.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_sm, tvb, offset, 1, FALSE);
    2318. 

  2318. 

  2319.     proto_tree_add_item(flag_tree, hf_gtpv2_spare_bits,	tvb, ((offset<<3)+3), 1, FALSE);
    2320. 

  2320.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_drxi, tvb, offset, 1, FALSE);
    2321. 

  2321.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_ksi_a, tvb, offset, 1, FALSE);
    2322. 

  2322.     offset += 1;
    2323. 

  2323.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_nr_qui, tvb, offset, 1, FALSE);
    2324. 

  2324.     proto_tree_add_item(flag_tree, hf_gtpv2_mm_context_nr_qua, tvb, offset, 1, FALSE);
    2325. 

  2325.     proto_tree_add_item(flag_tree, hf_gtpv2_spare_bits,	tvb, offset<<3, 2, FALSE);
    2326. 

  2326. 

  2327. }
    2328. 

  2328. 

  2329. /*
    2330. 

  2330.   * 8.39 PDN Connection (grouped IE)
    2331. 

  2331.  */
    2332. 

  2332. static void
    2333. 

  2333. dissect_gtpv2_PDN_conn(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree _U_, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    2334. 

  2334. {
    2335. 

  2335.     int offset= 0;
    2336. 

  2336.     proto_tree *grouped_tree;
    2337. 

  2337.     tvbuff_t *new_tvb;
    2338. 

  2338. 

  2339.     proto_item_append_text(item, "[Grouped IE]");
    2340. 

  2340.     grouped_tree = proto_item_add_subtree(item, ett_gtpv2_PDN_conn);
    2341. 

  2341.     new_tvb = tvb_new_subset(tvb, offset, length, length );
    2342. 

  2342. 

  2343.     dissect_gtpv2_ie_common(tvb, pinfo, grouped_tree, offset, message_type);
    2344. 

  2344. }
    2345. 

  2345. /*
    2346. 

  2346.  * 8.40 PDU Numbers
    2347. 

  2347.  */
    2348. 

  2348. static void
    2349. 

  2349. dissect_gtpv2_pdn_numbers(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
    2350. 

  2350. {
    2351. 

  2351.     proto_item	*nsapi_ti;
    2352. 

  2352.     proto_tree	*nsapi_tree;
    2353. 

  2353.     guint8	nsapi;
    2354. 

  2354.     guint16	dlgtpu_seq, ulgtpu_seq, send_npdu_nr, rec_npdu_nr;
    2355. 

  2355.     int		offset = 0;
    2356. 

  2356. 

  2357.     nsapi = (tvb_get_guint8(tvb, offset) & 0x08);
    2358. 

  2358.     nsapi_ti = proto_tree_add_text(tree, tvb, offset, 1, "NSAPI: %d", nsapi);
    2359. 

  2359.     nsapi_tree = proto_item_add_subtree(nsapi_ti, ett_gtpv2_pdn_numbers_nsapi);
    2360. 

  2360.     proto_tree_add_item(nsapi_tree, hf_gtpv2_spare_bits,	tvb, offset<<3, 4, FALSE);
    2361. 

  2361.     proto_tree_add_item(nsapi_tree, hf_gtpv2_pdn_numbers_nsapi, tvb, offset, 1, FALSE);
    2362. 

  2362.     proto_item_append_text(tree, "NSAPI: %u", nsapi);
    2363. 

  2363.     offset++;
    2364. 

  2364. 

  2365.     dlgtpu_seq = tvb_get_ntohs(tvb, offset);
    2366. 

  2366.     proto_tree_add_text(tree, tvb, offset, 2, "DL GTP-U Sequence Number: %d", dlgtpu_seq);
    2367. 

  2367.     offset += 2;
    2368. 

  2368. 

  2369.     ulgtpu_seq = tvb_get_ntohs(tvb, offset);
    2370. 

  2370.     proto_tree_add_text(tree, tvb, offset, 2, "UL GTP-U Sequence Number: %d", ulgtpu_seq);
    2371. 

  2371.     offset += 2;
    2372. 

  2372. 

  2373.     send_npdu_nr = tvb_get_ntohs(tvb, offset);
    2374. 

  2374.     proto_tree_add_text(tree, tvb, offset, 2, "Send N-PDU Number: %d", send_npdu_nr);
    2375. 

  2375.     offset += 2;
    2376. 

  2376. 

  2377.     rec_npdu_nr = tvb_get_ntohs(tvb, offset);
    2378. 

  2378.     proto_tree_add_text(tree, tvb, offset, 2, "Receive N-PDU Number: %d", rec_npdu_nr);
    2379. 

  2379. }
    2380. 

  2380. 

  2381. /*
    2382. 

  2382.  * 8.41 Packet TMSI (P-TMSI)
    2383. 

  2383.  */
    2384. 

  2384. static void
    2385. 

  2385. dissect_gtpv2_p_tmsi(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
    2386. 

  2386. {
    2387. 

  2387.     int offset = 0;
    2388. 

  2388. 

  2389.     /* The TMSI consists of 4 octets. It can be coded using a full hexadecimal representation. */
    2390. 

  2390.     proto_tree_add_item(tree, hf_gtpv2_p_tmsi,	tvb, offset, 4, FALSE);
    2391. 

  2391.     proto_item_append_text(tree, "%s", tvb_bytes_to_str(tvb, offset, 4));
    2392. 

  2392. }
    2393. 

  2393. 

  2394. /*
    2395. 

  2395.  * 8.42 P-TMSI Signature
    2396. 

  2396.  */
    2397. 

  2397. static void
    2398. 

  2398. dissect_gtpv2_p_tmsi_sig(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
    2399. 

  2399. {
    2400. 

  2400.     int offset = 0;
    2401. 

  2401. 

  2402.     /* The P-TMSI Signature consists of 3 octets and may be allocated by the SGSN. */
    2403. 

  2403.     proto_tree_add_item(tree, hf_gtpv2_p_tmsi_sig,	tvb, offset, 3, FALSE);
    2404. 

  2404.     proto_item_append_text(tree, "%s", tvb_bytes_to_str(tvb, offset, 3));
    2405. 

  2405. 

  2406. }
    2407. 

  2407. 

  2408. /*
    2409. 

  2409.  * 8.43 Hop Counter
    2410. 

  2410.  */
    2411. 

  2411. static void
    2412. 

  2412. dissect_gtpv2_hop_counter(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
    2413. 

  2413. {
    2414. 

  2414.     int offset = 0;
    2415. 

  2415.     guint8	hop_counter;
    2416. 

  2416. 

  2417.     hop_counter = tvb_get_guint8(tvb, offset);
    2418. 

  2418. 

  2419.     proto_tree_add_text(tree, tvb, offset, 1, "Hop Counter: %d", hop_counter);
    2420. 

  2420.     proto_item_append_text(tree, "%d", hop_counter);
    2421. 

  2421. }
    2422. 

  2422. 

  2423. /*
    2424. 

  2424.  * 8.44 UE Time Zone
    2425. 

  2425.  */
    2426. 

  2426. 

  2427. static const value_string gtpv2_ue_time_zone_dst_vals[] = {
    2428. 

  2428.     {0, "No Adjustments for Daylight Saving Time"},
    2429. 

  2429.     {1, "+1 Hour Adjustments for Daylight Saving Time"},
    2430. 

  2430.     {2, "+2 Hour Adjustments for Daylight Saving Time"},
    2431. 

  2431.     {3, "Spare"},
    2432. 

  2432.     {0, NULL}
    2433. 

  2433. };
    2434. 

  2434. static void
    2435. 

  2435. dissect_gtpv2_ue_time_zone(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    2436. 

  2436. {
    2437. 

  2437.     int offset = 0;
    2438. 

  2438. 

  2439.     /*
    2440. 

  2440.      * UE Time Zone is used to indicate the offset between universal time and local time in steps of 15 minutes of where the
    2441. 

  2441.      * UE currently resides. The "Time Zone" field uses the same format as the "Time Zone" IE in 3GPP TS 24.008 [5].
    2442. 

  2442.      * (packet-gsm_a_dtap.c)
    2443. 

  2443.      */
    2444. 

  2444.     de_time_zone(tvb, tree, pinfo, offset, 1, NULL, 0);
    2445. 

  2445.     offset= offset+ 1;
    2446. 

  2446.     proto_tree_add_item(tree, hf_gtpv2_ue_time_zone_dst, tvb, offset, 1, FALSE);
    2447. 

  2447. }
    2448. 

  2448. 

  2449. /*
    2450. 

  2450.  * 8.45 Trace Reference
    2451. 

  2451.  */
    2452. 

  2452. static void
    2453. 

  2453. dissect_gtpv2_trace_reference(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
    2454. 

  2454. {
    2455. 

  2455.     int offset = 0;
    2456. 

  2456.     guint32 trace_id;
    2457. 

  2457.     gchar *mcc_mnc_str;
    2458. 

  2458. 

  2459.     mcc_mnc_str = dissect_e212_mcc_mnc_ep_str(tvb, pinfo, tree, 0, TRUE);
    2460. 

  2460.     offset += 3;
    2461. 

  2461. 

  2462.     trace_id = tvb_get_ntohs(tvb, offset);
    2463. 

  2463.     proto_tree_add_text(tree, tvb, offset, 3, "Trace ID: %d", trace_id);
    2464. 

  2464. 

  2465.     proto_item_append_text(tree,"%s,Trace ID %u", mcc_mnc_str, trace_id);
    2466. 

  2466. }
    2467. 

  2467. /*
    2468. 

  2468.  * 8.46 Complete Request Message
    2469. 

  2469.  */
    2470. 

  2470. static const value_string gtpv2_complete_req_msg_type_vals[] = {
    2471. 

  2471. 	{0, "Complete Attach Request Message" 	},
    2472. 

  2472. 	{1, "Complete TAU Request Message"			},
    2473. 

  2473. 	{0, NULL																}
    2474. 

  2474. };
    2475. 

  2475. static void
    2476. 

  2476. dissect_complete_request_msg(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    2477. 

  2477. {
    2478. 

  2478.     tvbuff_t  *new_tvb;
    2479. 

  2479.     int        offset;
    2480. 

  2480. 

  2481.     offset = 0;
    2482. 

  2482. 

  2483.     proto_tree_add_item(tree, hf_gtpv2_complete_req_msg_type, tvb, offset, 1, FALSE);
    2484. 

  2484. 

  2485.     offset++;
    2486. 

  2486. 

  2487.     /* Add the Complete Request Message */
    2488. 

  2488.     new_tvb = tvb_new_subset_remaining(tvb, offset);
    2489. 

  2489.     call_dissector(nas_eps_handle, new_tvb, pinfo, tree);
    2490. 

  2490. 

  2491. }
    2492. 

  2492. 

  2493. /*
    2494. 

  2494.  * 8.47 GUTI
    2495. 

  2495.  */
    2496. 

  2496. static void
    2497. 

  2497. dissect_gtpv2_guti(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    2498. 

  2498. {
    2499. 

  2499.     int offset = 0;
    2500. 

  2500. 

  2501.     offset = 0;
    2502. 

  2502. 

  2503.     dissect_e212_mcc_mnc(tvb, pinfo, tree, 0, TRUE);
    2504. 

  2504.     offset += 3;
    2505. 

  2505. 

  2506.     proto_tree_add_item(tree, hf_gtpv2_mme_grp_id, tvb, offset, 2, FALSE);
    2507. 

  2507.     offset += 2;
    2508. 

  2508. 

  2509.     proto_tree_add_item(tree, hf_gtpv2_mme_code, tvb, offset, 1, FALSE);
    2510. 

  2510.     offset++;
    2511. 

  2511. 

  2512.     proto_tree_add_item(tree, hf_gtpv2_m_tmsi, tvb, offset,4, FALSE);
    2513. 

  2513. }
    2514. 

  2514. 

  2515. /*
    2516. 

  2516.  * 8.48 Fully Qualified Container (F-Container)
    2517. 

  2517.  */
    2518. 

  2518. 

  2519. static const value_string gtpv2_container_type_vals[] = {
    2520. 

  2520.     {1, "UTRAN transparent container"},
    2521. 

  2521.     {2, "BSS container"},
    2522. 

  2522.     {3, "E-UTRAN transparent container"},
    2523. 

  2523.     {0, NULL}
    2524. 

  2524. };
    2525. 

  2525. 

  2526. 

  2527. static void
    2528. 

  2528. dissect_gtpv2_F_container(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length,guint8 message_type,  guint8 instance _U_)
    2529. 

  2529. {
    2530. 

  2530.     tvbuff_t *tvb_new;
    2531. 

  2531.     int offset = 0;
    2532. 

  2532.     guint8 container_type;
    2533. 

  2533. 

  2534.     /* Octets	8	7	6	5	4	3	2	1
    2535. 

  2535.      * 5			Spare	  |	Container Type
    2536. 

  2536.      */
    2537. 

  2537.     proto_tree_add_item(tree, hf_gtpv2_container_type, tvb, offset, 1, FALSE);
    2538. 

  2538.     container_type = tvb_get_guint8(tvb,offset);
    2539. 

  2539.     offset++;
    2540. 

  2540.     if(message_type == GTPV2_FORWARD_CTX_NOTIFICATION) {
    2541. 

  2541. 	switch(container_type){
    2542. 

  2542. 	    case 3:
    2543. 

  2543. 		/* E-UTRAN transparent container */
    2544. 

  2544. 		tvb_new = tvb_new_subset_remaining(tvb, offset);
    2545. 

  2545. 		dissect_s1ap_ENB_StatusTransfer_TransparentContainer_PDU(tvb_new, pinfo, tree);
    2546. 

  2546. 		return;
    2547. 

  2547. 	    default:
    2548. 

  2548. 		break;
    2549. 

  2549. 	}
    2550. 

  2550.     }
    2551. 

  2551. 

  2552.     /* 7.3.2 Forward Relocation Response
    2553. 

  2553.      * E-UTRAN Transparent Container
    2554. 

  2554.      * This IE is conditionally included only during a handover to
    2555. 

  2555.      * E-UTRAN and contains the radio-related and core network
    2556. 

  2556.      * information. If the Cause IE contains the value "Request
    2557. 

  2557.      * accepted", this IE shall be included.
    2558. 

  2558.      */
    2559. 

  2559.     proto_tree_add_text(tree, tvb, offset, length-offset, "Not dissected yet");
    2560. 

  2560. 

  2561. }
    2562. 

  2562. 

  2563. /*
    2564. 

  2564.  * 8.49 Fully Qualified Cause (F-Cause)
    2565. 

  2565.  */
    2566. 

  2566. 

  2567. static const value_string gtpv2_cause_type_vals[] = {
    2568. 

  2568.     {0,  "Radio Network Layer"},
    2569. 

  2569.     {1,  "Transport Layer"},
    2570. 

  2570.     {2,  "NAS"},
    2571. 

  2571.     {3,  "Protocol"},
    2572. 

  2572.     {4,  "Miscellaneous"},
    2573. 

  2573.     {5,  "<spare>"},
    2574. 

  2574.     {6,  "<spare>"},
    2575. 

  2575.     {7,  "<spare>"},
    2576. 

  2576.     {8,  "<spare>"},
    2577. 

  2577.     {9,  "<spare>"},
    2578. 

  2578.     {10, "<spare>"},
    2579. 

  2579.     {11, "<spare>"},
    2580. 

  2580.     {12, "<spare>"},
    2581. 

  2581.     {13, "<spare>"},
    2582. 

  2582.     {14, "<spare>"},
    2583. 

  2583.     {15, "<spare>"},
    2584. 

  2584.     {0, NULL}
    2585. 

  2585. };
    2586. 

  2586. static value_string_ext gtpv2_cause_type_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_cause_type_vals);
    2587. 

  2587. 

  2588. static void
    2589. 

  2589. dissect_gtpv2_F_cause(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    2590. 

  2590. {
    2591. 

  2591.     int offset = 0;
    2592. 

  2592.     guint8 cause_type;
    2593. 

  2593. 

  2594.     /* The value of Instance field of the F-Cause IE in a GTPv2 message shall indicate
    2595. 

  2595.      * whether the F-Cause field contains RANAP Cause, BSSGP Cause or RAN Cause.
    2596. 

  2596.      * If the F-Cause field contains RAN Cause, the Cause Type field shall contain
    2597. 

  2597.      * the RAN cause subcategory as specified in 3GPP TS 36.413 [10] and it shall be
    2598. 

  2598.      * encoded as in Table 8.49-1.
    2599. 

  2599.      * If the F-Cause field contains BSSGP Cause or RANAP Cause,
    2600. 

  2600.      * the Cause Type field shall be ignored by the receiver.
    2601. 

  2601.      */
    2602. 

  2602.     if(message_type == GTPV2_FORWARD_RELOCATION_REQ) {
    2603. 

  2603. 	switch(instance) {
    2604. 

  2604. 	    case 0:
    2605. 

  2605. 		proto_item_append_text(item, "[RAN Cause]");
    2606. 

  2606. 		proto_tree_add_item(tree, hf_gtpv2_cause_type, tvb, offset, 1, FALSE);
    2607. 

  2607. 		cause_type = tvb_get_guint8(tvb,offset);
    2608. 

  2608. 		offset++;
    2609. 

  2609. 		switch(cause_type){
    2610. 

  2610. 		    case 0:
    2611. 

  2611. 			/* CauseRadioNetwork */
    2612. 

  2612. 			proto_tree_add_item(tree, hf_gtpv2_CauseRadioNetwork, tvb, offset, 1, FALSE);
    2613. 

  2613. 			break;
    2614. 

  2614. 		    case 1:
    2615. 

  2615. 			/* CauseTransport */
    2616. 

  2616. 			proto_tree_add_item(tree, hf_gtpv2_CauseTransport, tvb, offset, 1, FALSE);
    2617. 

  2617. 			break;
    2618. 

  2618. 		    case 2:
    2619. 

  2619. 			/* CauseNas */
    2620. 

  2620. 			proto_tree_add_item(tree, hf_gtpv2_CauseNas, tvb, offset, 1, FALSE);
    2621. 

  2621. 			break;
    2622. 

  2622. 		    case 3:
    2623. 

  2623. 			/* CauseProtocol */
    2624. 

  2624. 			proto_tree_add_item(tree, hf_gtpv2_CauseProtocol, tvb, offset, 1, FALSE);
    2625. 

  2625. 			break;
    2626. 

  2626. 		    case 4:
    2627. 

  2627. 			/* CauseMisc */
    2628. 

  2628. 			proto_tree_add_item(tree, hf_gtpv2_CauseMisc, tvb, offset, 1, FALSE);
    2629. 

  2629. 			break;
    2630. 

  2630. 		    default:
    2631. 

  2631. 			break;
    2632. 

  2632. 		}
    2633. 

  2633. 		return;
    2634. 

  2634. 		break;
    2635. 

  2635. 	    case 1:
    2636. 

  2636. 		proto_item_append_text(item, "[RANAP Cause]");
    2637. 

  2637. 		break;
    2638. 

  2638. 	    case 2:
    2639. 

  2639. 		proto_item_append_text(item, "[BSSGP Cause]");
    2640. 

  2640. 		break;
    2641. 

  2641. 	    default:
    2642. 

  2642. 		break;
    2643. 

  2643. 	}
    2644. 

  2644.     }
    2645. 

  2645.     proto_tree_add_text(tree, tvb, offset, length-offset, "Not dissected yet");
    2646. 

  2646. 

  2647. }
    2648. 

  2648. 

  2649. /*
    2650. 

  2650.  * 8.50 Selected PLMN ID
    2651. 

  2651.  */
    2652. 

  2652. /*
    2653. 

  2653.  * The Selected PLMN ID IE contains the core network operator selected for tne UE
    2654. 

  2654.  * in a shared network. Octets 5-7 shall be encoded as the content part of the
    2655. 

  2655.  *  "Selected PLMN Identity" parameter in 3GPP TS 36.413 [10].
    2656. 

  2656.  * -The Selected PLMN identity consists of 3 digits from MCC followed by
    2657. 

  2657.  * either -a filler digit plus 2 digits from MNC (in case of 2 digit MNC) or
    2658. 

  2658.  * -3 digits from MNC (in case of a 3 digit MNC).
    2659. 

  2659.  */
    2660. 

  2660. static void
    2661. 

  2661. dissect_gtpv2_sel_plmn_id(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
    2662. 

  2662. {
    2663. 

  2663.     gchar *mcc_mnc_str;
    2664. 

  2664. 

  2665.     mcc_mnc_str = dissect_e212_mcc_mnc_ep_str(tvb, pinfo, tree, 0, TRUE);
    2666. 

  2666.     proto_item_append_text(tree,"%s", mcc_mnc_str);
    2667. 

  2667. }
    2668. 

  2668. 

  2669. /*
    2670. 

  2670.  * 8.51 Target Identification
    2671. 

  2671.  */
    2672. 

  2672. 

  2673. static const value_string gtpv2_target_type_vals[] = {
    2674. 

  2674.     {0,  "RNC ID"},
    2675. 

  2675.     {1,  "Macro eNodeB ID"},
    2676. 

  2676.     {2,  "Cell Identifier"},
    2677. 

  2677.     {3,  "Home eNodeB ID"},
    2678. 

  2678.     {0, NULL}
    2679. 

  2679. };
    2680. 

  2680. static value_string_ext gtpv2_target_type_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_target_type_vals);
    2681. 

  2681. 

  2682. static void
    2683. 

  2683. dissect_gtpv2_target_id(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    2684. 

  2684. {
    2685. 

  2685.     tvbuff_t *tvb_new;
    2686. 

  2686.     int offset = 0;
    2687. 

  2687.     guint8 target_type;
    2688. 

  2688. 

  2689.     proto_tree_add_item(tree, hf_gtpv2_target_type, tvb, 0, 1, FALSE);
    2690. 

  2690.     target_type = tvb_get_guint8(tvb,offset);
    2691. 

  2691.     offset++;
    2692. 

  2692.     switch(target_type) {
    2693. 

  2693. 	case 0:
    2694. 

  2694. 	    /* RNC ID
    2695. 

  2695. 	     * In this case the Target ID field shall be encoded as the Target
    2696. 

  2696. 	     * RNC-ID part of the "Target ID" parameter in 3GPP TS 25.413 [33]. Therefore, the "Choice Target ID" that indicates
    2697. 

  2697. 	     * "Target RNC-ID" (numerical value of 0x20) shall not be included (value in octet 5 specifies the target type).
    2698. 

  2698. 	     */
    2699. 

  2699. 	    tvb_new = tvb_new_subset_remaining(tvb, offset);
    2700. 

  2700. 	    dissect_ranap_TargetRNC_ID_PDU(tvb_new, pinfo, tree);
    2701. 

  2701. 	    return;
    2702. 

  2702. 	    break;
    2703. 

  2703. 	case 1:
    2704. 

  2704. 	    /* Macro eNodeB ID*/
    2705. 

  2705. 	    tvb_new = tvb_new_subset_remaining(tvb, offset);
    2706. 

  2706. 	    dissect_e212_mcc_mnc(tvb_new, pinfo, tree, 0, TRUE);
    2707. 

  2707. 	    offset+=3;
    2708. 

  2708. 	    /* The Macro eNodeB ID consists of 20 bits.
    2709. 

  2709. 	     * Bit 4 of Octet 4 is the most significant bit and bit 1 of Octet 6 is the least significant bit.
    2710. 

  2710. 	     */
    2711. 

  2711. 	    proto_tree_add_item(tree, hf_gtpv2_macro_enodeb_id, tvb, offset, 3, FALSE);
    2712. 

  2712. 	    offset+=3;
    2713. 

  2713. 	    /* Tracking Area Code (TAC) */
    2714. 

  2714. 	    proto_tree_add_item(tree, hf_gtpv2_uli_tai_tac, tvb, offset, 2, FALSE);
    2715. 

  2715. 	    return;
    2716. 

  2716. 

  2717. 	case 2:
    2718. 

  2718. 	    /* Cell Identifier */
    2719. 

  2719. 	    /* Target ID field shall be same as the Octets 3 to 10 of the Cell Identifier IEI
    2720. 

  2720. 	    * in 3GPP TS 48.018 [34].
    2721. 

  2721. 	    */
    2722. 

  2722. 	case 3:
    2723. 

  2723. 	    /* Home eNodeB ID */
    2724. 

  2724. 	    /* Octet 10 to 12 Home eNodeB ID */
    2725. 

  2725. 	    /* Octet 13 to 14 Tracking Area Code (TAC) */
    2726. 

  2726. 

  2727. 	default:
    2728. 

  2728. 	    break;
    2729. 

  2729.     }
    2730. 

  2730.     proto_tree_add_text(tree, tvb, offset, length-offset, "Not dissected yet");
    2731. 

  2731. 

  2732. }
    2733. 

  2733. 

  2734. /*
    2735. 

  2735.  * 8.52 Void
    2736. 

  2736.  */
    2737. 

  2737. /*
    2738. 

  2738.  * 8.53 Packet Flow ID
    2739. 

  2739.  */
    2740. 

  2740. static void
    2741. 

  2741. dissect_gtpv2_pkt_flow_id(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
    2742. 

  2742. {
    2743. 

  2743.     int offset = 0;
    2744. 

  2744. 

  2745.     /* Octet 5 Spare EBI */
    2746. 

  2746.     proto_tree_add_bits_item(tree, hf_gtpv2_spare_bits, tvb, offset<<3, 4, FALSE);
    2747. 

  2747.     proto_tree_add_item(tree, hf_gtpv2_ebi, tvb, offset, 2, FALSE);
    2748. 

  2748.     offset++;
    2749. 

  2749. 

  2750.     /* Packet Flow ID */
    2751. 

  2751.     proto_tree_add_text(tree, tvb, offset, length, "Packet Flow ID: %s", tvb_bytes_to_str(tvb, offset, length-1));
    2752. 

  2752. 

  2753. }
    2754. 

  2754. /*
    2755. 

  2755.  * 8.54 RAB Context
    2756. 

  2756.  */
    2757. 

  2757. static void
    2758. 

  2758. dissect_gtpv2_rab_context(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
    2759. 

  2759. {
    2760. 

  2760.     int offset = 0;
    2761. 

  2761.     guint16			dlgtpu_seq, ulgtpu_seq, dl_pdcp_seq, ul_pdcp_seq;
    2762. 

  2762. 

  2763.     /* 5 Spare NSAPI */
    2764. 

  2764.     proto_tree_add_bits_item(tree, hf_gtpv2_spare_bits, tvb, offset<<3, 4, FALSE);
    2765. 

  2765.     proto_tree_add_item(tree, hf_gtpv2_nsapi, tvb, offset, 1, FALSE);
    2766. 

  2766. 

  2767.     /* 6 to 7 DL GTP-U Sequence Number */
    2768. 

  2768.     dlgtpu_seq = tvb_get_ntohs(tvb, offset);
    2769. 

  2769.     proto_tree_add_text(tree, tvb, offset, 2, "DL GTP-U Sequence Number: %d", dlgtpu_seq);
    2770. 

  2770.     offset += 2;
    2771. 

  2771. 

  2772.     /* 8 to 9 UL GTP-U Sequence Number */
    2773. 

  2773.     ulgtpu_seq = tvb_get_ntohs(tvb, offset);
    2774. 

  2774.     proto_tree_add_text(tree, tvb, offset, 2, "UL GTP-U Sequence Number: %d", ulgtpu_seq);
    2775. 

  2775.     offset += 2;
    2776. 

  2776. 

  2777.     /* 10 to 11 DL PDCP Sequence Number */
    2778. 

  2778.     dl_pdcp_seq = tvb_get_ntohs(tvb, offset);
    2779. 

  2779.     proto_tree_add_text(tree, tvb, offset, 2, "DL PDCP Sequence Number: %d", dl_pdcp_seq);
    2780. 

  2780.     offset += 2;
    2781. 

  2781. 

  2782.     /* 12 to 13 UL PDCP Sequence Number */
    2783. 

  2783.     ul_pdcp_seq = tvb_get_ntohs(tvb, offset);
    2784. 

  2784.     proto_tree_add_text(tree, tvb, offset, 2, "UL PDCP Sequence Number: %d", ul_pdcp_seq);
    2785. 

  2785. 

  2786. }
    2787. 

  2787. 

  2788. /*
    2789. 

  2789.  * 8.55 Source RNC PDCP context info
    2790. 

  2790.  */
    2791. 

  2791. static void
    2792. 

  2792. dissect_gtpv2_s_rnc_pdcp_ctx_info(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
    2793. 

  2793. {
    2794. 

  2794.     proto_tree_add_text(tree, tvb, 0, length, "RRC Container");
    2795. 

  2795. }
    2796. 

  2796. 

  2797. /*
    2798. 

  2798.  * 8.56 UDP Source Port Number
    2799. 

  2799.  */
    2800. 

  2800. static void
    2801. 

  2801. dissect_udp_s_port_nr(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
    2802. 

  2802. {
    2803. 

  2803.     proto_tree_add_text(tree, tvb, 0, 2, "UPD Source Port Number: %u", tvb_get_ntohs(tvb, 0));
    2804. 

  2804.     proto_item_append_text(tree, "%u", tvb_get_ntohs(tvb, 0));
    2805. 

  2805. }
    2806. 

  2806. /*
    2807. 

  2807.  * 8.57 APN Restriction
    2808. 

  2808.  */
    2809. 

  2809. static void
    2810. 

  2810. dissect_gtpv2_apn_rest(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    2811. 

  2811. {
    2812. 

  2812.     guint8 type_value;
    2813. 

  2813. 

  2814.     type_value = tvb_get_guint8(tvb, 0);
    2815. 

  2815.     proto_tree_add_item(tree, hf_gtpv2_apn_rest, tvb, 0, 1, FALSE);
    2816. 

  2816.     proto_item_append_text(item, "value %u", type_value);
    2817. 

  2817. }
    2818. 

  2818. 

  2819. /*
    2820. 

  2820.  * 8.58 Selection Mode
    2821. 

  2821.  */
    2822. 

  2822. static const value_string gtpv2_selec_mode_vals[] = {
    2823. 

  2823.     {0, "MS or network provided APN, subscribed verified"},
    2824. 

  2824.     {1, "MS provided APN, subscription not verified"},
    2825. 

  2825.     {2, "Network provided APN, subscription not verified"},
    2826. 

  2826.     {3, "Network provided APN, subscription not verified (Basically for Future use"},
    2827. 

  2827.     {0, NULL}
    2828. 

  2828. };
    2829. 

  2829. 

  2830. static void
    2831. 

  2831. dissect_gtpv2_selec_mode(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    2832. 

  2832. {
    2833. 

  2833.     int          offset=0;
    2834. 

  2834.     guint8       ss_mode;
    2835. 

  2835. 

  2836.     ss_mode = tvb_get_guint8(tvb, offset) & 0x03;
    2837. 

  2837.     proto_tree_add_item(tree, hf_gtpv2_selec_mode, tvb, offset, 1, FALSE);
    2838. 

  2838.     proto_item_append_text(item, "%s", val_to_str(ss_mode, gtpv2_selec_mode_vals, "Unknown"));
    2839. 

  2839. }
    2840. 

  2840. 

  2841. 

  2842. /*
    2843. 

  2843.  * 8.59 Source Identification
    2844. 

  2844.  */
    2845. 

  2845. static const value_string gtpv2_source_ident_types[] = {
    2846. 

  2846. 	{0, "Cell ID"},
    2847. 

  2847. 	{1, "RNC ID"},
    2848. 

  2848. 	{2, "eNodeB ID(Reserved, used in erlier v of proto.)"},
    2849. 

  2849. 	{0,	NULL}
    2850. 

  2850. };
    2851. 

  2851. static void
    2852. 

  2852. dissect_gtpv2_source_ident(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
    2853. 

  2853. {
    2854. 

  2854.     proto_item *expert_item;
    2855. 

  2855.     int          offset=0;
    2856. 

  2856.     guint8       source_type;
    2857. 

  2857. 

  2858.     /* Octet 5 to 12 Target Cell ID */
    2859. 

  2859.     de_cell_id(tvb, tree, pinfo, offset, 8, NULL, 0);
    2860. 

  2860.     offset+=8;
    2861. 

  2861.     /* Octet 13 Source Type */
    2862. 

  2862.     source_type = tvb_get_guint8(tvb, offset);
    2863. 

  2863.     proto_tree_add_item(tree, hf_gtpv2_source_type, tvb, offset, 1, FALSE);
    2864. 

  2864.     offset++;
    2865. 

  2865.     /* Octet 14 to (n+4) Source ID */
    2866. 

  2866.     switch(source_type){
    2867. 

  2867. 	case 0:
    2868. 

  2868. 	    /* The Source Type is Cell ID for PS handover from GERAN A/Gb mode. In this case the coding of the Source ID field
    2869. 

  2869. 	     * shall be same as the Octets 3 to 10 of the Cell Identifier IEI in 3GPP TS 48.018 [34].
    2870. 

  2870. 	     */
    2871. 

  2871. 	    de_cell_id(tvb, tree, pinfo, offset, 8, NULL, 0);
    2872. 

  2872. 	    offset+=8;
    2873. 

  2873. 	    break;
    2874. 

  2874. 	case 1:
    2875. 

  2875. 	    /* The Source Type is RNC ID for PS handover from GERAN Iu mode or for inter-RAT handover from UTRAN. In this
    2876. 

  2876. 	     * case the Source ID field shall be encoded as as the Source RNC-ID part of the "Source ID" parameter in 3GPP TS
    2877. 

  2877. 	     * 25.413 [33].
    2878. 

  2878. 	     */
    2879. 

  2879. 	    /* RNC-ID M INTEGER (0..4095) */
    2880. 

  2880. 	    break;
    2881. 

  2881. 	case 2:
    2882. 

  2882. 	    break;
    2883. 

  2883. 	default:
    2884. 

  2884. 	    expert_item = proto_tree_add_text(tree, tvb, offset-1, 1, "Unknown source type");
    2885. 

  2885. 	    expert_add_info_format(pinfo, expert_item, PI_PROTOCOL, PI_ERROR, "Unknown source type");
    2886. 

  2886. 	    PROTO_ITEM_SET_GENERATED(expert_item);
    2887. 

  2887. 	    break;
    2888. 

  2888.     }
    2889. 

  2889. 

  2890. }
    2891. 

  2891. 

  2892.  /*
    2893. 

  2893.   * 8.60 Bearer Control Mode
    2894. 

  2894.   */
    2895. 

  2895. static const value_string gtpv2_bearer_control_mode_vals[] = {
    2896. 

  2896.     {0, "Selected Bearer Control Mode-'MS_only'"},
    2897. 

  2897.     {1, "Selected Bearer Control Mode-'Network_only'"},
    2898. 

  2898.     {2, "Selected Bearer Control Mode-'MS/NW'"},
    2899. 

  2899.     {0, NULL}
    2900. 

  2900. };
    2901. 

  2901. static const value_string gtpv2_bearer_control_mode_short_vals[] = {
    2902. 

  2902.     {0, "MS_only"},
    2903. 

  2903.     {1, "Network_only"},
    2904. 

  2904.     {2, "MS/NW"},
    2905. 

  2905.     {0, NULL}
    2906. 

  2906. };
    2907. 

  2907. 

  2908. static void
    2909. 

  2909. dissect_gtpv2_bearer_control_mode(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    2910. 

  2910. {
    2911. 

  2911.     guint8		bcm;
    2912. 

  2912. 

  2913.     proto_tree_add_item(tree, hf_gtpv2_bearer_control_mode, tvb, 0, 1, FALSE);
    2914. 

  2914.     /* Add Bearer Control Mode to tree */
    2915. 

  2915.     bcm = tvb_get_guint8(tvb, 0);
    2916. 

  2916.     proto_item_append_text(tree, "%s", val_to_str(bcm, gtpv2_bearer_control_mode_short_vals, "Unknown"));
    2917. 

  2917. 

  2918. }
    2919. 

  2919. /*
    2920. 

  2920.  * 8.61 Change Reporting Action
    2921. 

  2921.  */
    2922. 

  2922. static const value_string gtpv2_cng_rep_act_vals[] = {
    2923. 

  2923.     {0, "Stop Reporting"},
    2924. 

  2924.     {1, "Start Reporting CGI/SAI"},
    2925. 

  2925.     {2, "Start Reporting RAI"},
    2926. 

  2926.     {3, "Start Reporting TAI"},
    2927. 

  2927.     {4, "Start Reporting ECGI"},
    2928. 

  2928.     {5, "Start Reporting CGI/SAI and RAI"},
    2929. 

  2929.     {6, "Start Reporting TAI and ECGI"},
    2930. 

  2930.     {0, NULL}
    2931. 

  2931. };
    2932. 

  2932. 

  2933. static void
    2934. 

  2934. dissect_gtpv2_cng_rep_act(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    2935. 

  2935. {
    2936. 

  2936.     guint8		action;
    2937. 

  2937. 

  2938.     /* Add Action to tree */
    2939. 

  2939.     action = tvb_get_guint8(tvb, 0);
    2940. 

  2940.     proto_tree_add_item(tree, hf_gtpv2_cng_rep_act, tvb, 0, 1, FALSE);
    2941. 

  2941. 

  2942.     proto_item_append_text(tree, "%s", val_to_str(action, gtpv2_cng_rep_act_vals, "Unknown"));
    2943. 

  2943. }
    2944. 

  2944. /*
    2945. 

  2945.  * 8.62 Fully qualified PDN Connection Set Identifier (FQ-CSID)
    2946. 

  2946.  */
    2947. 

  2947. static const value_string gtpv2_fq_csid_type_vals[] = {
    2948. 

  2948.     {0, "Global unicast IPv4 address"},
    2949. 

  2949.     {1, "Global unicast IPv6 address"},
    2950. 

  2950.     {2, "4 octets long field"},
    2951. 

  2951.     {0, NULL}
    2952. 

  2952. };
    2953. 

  2953. 

  2954. 

  2955. static void
    2956. 

  2956. dissect_gtpv2_fq_csid(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_, guint8 instance _U_)
    2957. 

  2957. {
    2958. 

  2958.     proto_item *expert_item;
    2959. 

  2959.     int      offset = 0;
    2960. 

  2960.     guint8	 octet,node_id_type, csids;
    2961. 

  2961.     guint32  node_id, node_id_mcc_mnc;
    2962. 

  2962. 

  2963.     /* Octet 5 Node-ID Type Number of CSIDs= m */
    2964. 

  2964. 

  2965.     octet = tvb_get_guint8(tvb, offset);
    2966. 

  2966.     node_id_type = octet >> 4;
    2967. 

  2967.     csids = octet & 0x0f;
    2968. 

  2968.     proto_tree_add_item(tree, hf_gtpv2_fq_csid_type, tvb, offset, 1, FALSE);
    2969. 

  2969.     proto_tree_add_item(tree, hf_gtpv2_fq_csid_nr, tvb, offset, 1, FALSE);
    2970. 

  2970.     offset++;
    2971. 

  2971. 

  2972.     switch(node_id_type){
    2973. 

  2973. 	    case 0:
    2974. 

  2974. 		    /* Indicates that Node-ID is a global unicast IPv4 address and p = 9 */
    2975. 

  2975. 		    proto_tree_add_item(tree, hf_gtpv2_fq_csid_ipv4, tvb, offset, 4, FALSE);
    2976. 

  2976. 		    offset += 4;
    2977. 

  2977. 		    break;
    2978. 

  2978. 	    case 1:
    2979. 

  2979. 		    /* Indicates that Node-ID is a global unicast IPv6 address and p = 21 */
    2980. 

  2980. 		    proto_tree_add_item(tree, hf_gtpv2_fq_csid_ipv6, tvb, offset, 16, FALSE);
    2981. 

  2981. 		    offset += 16;
    2982. 

  2982. 		    break;
    2983. 

  2983. 	    case 2:
    2984. 

  2984. 		    /* Node-ID is a 4 octets long field with a 32 bit value stored in network order, and p= 9. The coding
    2985. 

  2985. 		     * of the field is specified below:
    2986. 

  2986. 		     * - Most significant 20 bits are the binary encoded value of (MCC * 1000 + MNC).
    2987. 

  2987. 		     * - Least significant 12 bits is a 12 bit integer assigned by an operator to an MME, SGW or PGW. Other values of
    2988. 

  2988. 		     *   Node-ID Type are reserved.
    2989. 

  2989. 		     */
    2990. 

  2990. 		    node_id = tvb_get_ntohl(tvb, offset);
    2991. 

  2991. 		    node_id_mcc_mnc = node_id >> 12;
    2992. 

  2992. 		    node_id = node_id & 0xfff;
    2993. 

  2993. 		    proto_tree_add_text(tree, tvb, offset, 4, "Node-ID: MCC+MNC %u, Id: %u",node_id_mcc_mnc, node_id);
    2994. 

  2994. 		    offset+=4;
    2995. 

  2995. 		    break;
    2996. 

  2996. 	    default:
    2997. 

  2997. 		    expert_item = proto_tree_add_text(tree, tvb, offset-1, 1, "Wrong Node-ID Type %u, should be 0-2(Or tis is a newer spec)",node_id_type);
    2998. 

  2998. 		    expert_add_info_format(pinfo, expert_item, PI_PROTOCOL, PI_ERROR, "Wrong Node-ID Type %u, should be 0-2(Or tis is a newer spec)",node_id_type);
    2999. 

  2999. 		    PROTO_ITEM_SET_GENERATED(expert_item);
    3000. 

  3000. 		    return;
    3001. 

  3001.     }
    3002. 

  3002. 

  3003.     /* First PDN Connection Set Identifier (CSID)
    3004. 

  3004.      * Second PDN Connection Set Identifier (CSID)
    3005. 

  3005.      *  :
    3006. 

  3006.      * m-th PDN Connection Set Identifier (CSID)
    3007. 

  3007.      */
    3008. 

  3008.     while ( csids-- ) {
    3009. 

  3009. 	proto_tree_add_item(tree, hf_gtpv2_fq_csid_id, tvb, offset, 2, FALSE);
    3010. 

  3010. 	offset += 2;
    3011. 

  3011.     }
    3012. 

  3012. 

  3013. }
    3014. 

  3014. 

  3015. /*
    3016. 

  3016.  * 8.63 Channel needed
    3017. 

  3017.  */
    3018. 

  3018. static void
    3019. 

  3019. dissect_gtpv2_channel_needed(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
    3020. 

  3020. {
    3021. 

  3021.     /* The Channel needed shall be coded as depicted in Figure 8.63-1. Channel needed is coded as the IEI part and the value
    3022. 

  3022.      * part of the Channel Needed IE defined in 3GPP TS 44.018[28]
    3023. 

  3023.      */
    3024. 

  3024.     de_rr_chnl_needed(tvb, tree, pinfo, 0, length, NULL, 0);
    3025. 

  3025. }
    3026. 

  3026. 

  3027. /*
    3028. 

  3028.  * 8.64 eMLPP Priority
    3029. 

  3029.  * The eMLPP-Priority shall be coded as depicted in Figure 8.64-1. The eMLPP Priority is coded as the value part of the
    3030. 

  3030.  * eMLPP-Priority IE defined in 3GPP TS 48.008 [29] (not including 3GPP TS 48.008 IEI and 3GPP TS 48.008 [29]
    3031. 

  3031.  * length indicator).
    3032. 

  3032.  */
    3033. 

  3033. static void
    3034. 

  3034. dissect_gtpv2_emlpp_pri(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
    3035. 

  3035. {
    3036. 

  3036.     be_emlpp_prio(tvb, tree, pinfo, 0, length, NULL, 0);
    3037. 

  3037. 

  3038. }
    3039. 

  3039. 

  3040. /*
    3041. 

  3041.  * 8.65 Node Type
    3042. 

  3042.  */
    3043. 

  3043. static const value_string gtpv2_node_type_vals[] = {
    3044. 

  3044.     {0, "MME"},
    3045. 

  3045.     {1, "SGSN"},
    3046. 

  3046.     {0, NULL}
    3047. 

  3047. };
    3048. 

  3048. 

  3049. static void
    3050. 

  3050. dissect_gtpv2_node_type(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    3051. 

  3051. {
    3052. 

  3052.     guint8		node_type;
    3053. 

  3053. 

  3054.     proto_tree_add_item(tree, hf_gtpv2_node_type, tvb, 0, 1, FALSE);
    3055. 

  3055.     /* Append Node Type to tree */
    3056. 

  3056.     node_type = tvb_get_guint8(tvb, 0);
    3057. 

  3057.     proto_item_append_text(tree, "%s", val_to_str(node_type, gtpv2_node_type_vals, "Unknown"));
    3058. 

  3058. 

  3059. }
    3060. 

  3060. 

  3061.  /*
    3062. 

  3062.   * 8.66 Fully Qualified Domain Name (FQDN)
    3063. 

  3063.   */
    3064. 

  3064. static void
    3065. 

  3065. dissect_gtpv2_fqdn(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    3066. 

  3066. {
    3067. 

  3067.     int offset = 0, name_len, tmp;
    3068. 

  3068.     guint8 *fqdn = NULL;
    3069. 

  3069. 

  3070.     /* The FQDN field encoding shall be identical to the encoding of
    3071. 

  3071.      * a FQDN within a DNS message of section 3.1 of IETF
    3072. 

  3072.      * RFC 1035 [31] but excluding the trailing zero byte.
    3073. 

  3073.      */
    3074. 

  3074.     if (length > 0) {
    3075. 

  3075. 	name_len = tvb_get_guint8(tvb, offset);
    3076. 

  3076. 

  3077. 	if (name_len < 0x20) {
    3078. 

  3078. 	    fqdn = tvb_get_ephemeral_string(tvb, offset + 1, length - 1);
    3079. 

  3079. 	    for (;;) {
    3080. 

  3080. 		if (name_len >= length - 1)
    3081. 

  3081. 			break;
    3082. 

  3082. 		tmp = name_len;
    3083. 

  3083. 		name_len = name_len + fqdn[tmp] + 1;
    3084. 

  3084. 		fqdn[tmp] = '.';
    3085. 

  3085. 	    }
    3086. 

  3086. 	} else {
    3087. 

  3087. 	    fqdn = tvb_get_ephemeral_string(tvb, offset, length);
    3088. 

  3088. 	}
    3089. 

  3089. 	proto_tree_add_string(tree, hf_gtpv2_fqdn, tvb, offset, length, fqdn);
    3090. 

  3090. 	proto_item_append_text(item, "%s", fqdn);
    3091. 

  3091.     }
    3092. 

  3092. }
    3093. 

  3093. 

  3094. /*
    3095. 

  3095.  * 8.67 Private Extension
    3096. 

  3096.  */
    3097. 

  3097. static void
    3098. 

  3098. dissect_gtpv2_private_ext(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_,guint8 message_type _U_,  guint8 instance _U_)
    3099. 

  3099. {
    3100. 

  3100.     int offset = 0;
    3101. 

  3101. 

  3102.     /* oct 5 -7 Enterprise ID */
    3103. 

  3103.     proto_tree_add_item(tree, hf_gtpv2_enterprise_id, tvb, offset, 2, FALSE);
    3104. 

  3104.     offset+=2;
    3105. 

  3105.     proto_tree_add_text(tree, tvb, offset, length-2, "Proprietary value");
    3106. 

  3106. }
    3107. 

  3107. 

  3108. /*
    3109. 

  3109.  * 8.68	Transaction Identifier (TI)
    3110. 

  3110.  */
    3111. 

  3111. static void
    3112. 

  3112. dissect_gtpv2_ti(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, guint8 instance _U_)
    3113. 

  3113. {
    3114. 

  3114.     /* 5 to (n+4)	Transaction Identifier */
    3115. 

  3115.     proto_tree_add_item(tree, hf_gtpv2_ti, tvb, 0, length, FALSE);
    3116. 

  3116. 

  3117. }
    3118. 

  3118. 

  3119. typedef struct _gtpv2_ie {
    3120. 

  3120.     int ie_type;
    3121. 

  3121.     void (*decode) (tvbuff_t *, packet_info *, proto_tree *, proto_item *, guint16, guint8, guint8);
    3122. 

  3122. } gtpv2_ie_t;
    3123. 

  3123. 

  3124. static const gtpv2_ie_t gtpv2_ies[] = {
    3125. 

  3125.     {GTPV2_IE_IMSI, dissect_gtpv2_imsi},
    3126. 

  3126.     {GTPV2_IE_CAUSE, dissect_gtpv2_cause},                           /* 2, Cause (without embedded offending IE) 8.4 */
    3127. 

  3127.     {GTPV2_REC_REST_CNT, dissect_gtpv2_recovery},                    /* 3, Recovery (Restart Counter) 8.5 */
    3128. 

  3128.                                                                      /* 4-50 Reserved for S101 interface Extendable / See 3GPP TS 29.276 [14] */
    3129. 

  3129.                                                                      /* 51-70 Reserved for Sv interface Extendable / See 3GPP TS 29.280 [15] */
    3130. 

  3130.     {GTPV2_APN, dissect_gtpv2_apn},                                  /* 71, Access Point Name (APN) 8.6 */
    3131. 

  3131.     {GTPV2_AMBR, dissect_gtpv2_ambr},                                /* 72, Aggregate Maximum Bit Rate (AMBR) */
    3132. 

  3132.     {GTPV2_EBI, dissect_gtpv2_ebi},                                  /* 73, EPS Bearer ID (EBI)  8.8 */
    3133. 

  3133.     {GTPV2_IP_ADDRESS, dissect_gtpv2_ip_address},                    /* 74, IP Address */
    3134. 

  3134.     {GTPV2_MEI, dissect_gtpv2_mei},                                  /* 74, Mobile Equipment Identity */
    3135. 

  3135.     {GTPV2_IE_MSISDN, dissect_gtpv2_msisdn},                         /* 76, MSISDN 8.11 */
    3136. 

  3136.     {GTPV2_INDICATION, dissect_gtpv2_ind},                           /* 77 Indication 8.12 */
    3137. 

  3137.     {GTPV2_PCO, dissect_gtpv2_pco},                                  /* 78 Protocol Configuration Options (PCO) 8.13 */
    3138. 

  3138.     {GTPV2_PAA, dissect_gtpv2_paa},                                  /* 79 PDN Address Allocation (PAA) 8.14 */
    3139. 

  3139.     {GTPV2_BEARER_QOS,dissect_gtpv2_bearer_qos},                     /* 80 Bearer Level Quality of Service (Bearer QoS) 8.15 */
    3140. 

  3140.     {GTPV2_IE_FLOW_QOS, dissect_gtpv2_flow_qos},                     /* 81 Flow Quality of Service (Flow QoS) 8.16 */
    3141. 

  3141.     {GTPV2_IE_RAT_TYPE, dissect_gtpv2_rat_type},                     /* 82, RAT Type  8.17 */
    3142. 

  3142.     {GTPV2_IE_SERV_NET, dissect_gtpv2_serv_net},                     /* 83, Serving Network 8.18 */
    3143. 

  3143.     {GTPV2_IE_BEARER_TFT, dissect_gtpv2_bearer_tft},                 /* 84, Bearer TFT 8.19 */
    3144. 

  3144.     {GTPV2_IE_TAD, dissect_gtpv2_tad},                               /* 85, Traffic Aggregate Description 8.20 */
    3145. 

  3145.     {GTPV2_IE_ULI, dissect_gtpv2_uli},                               /* 86, User Location Info (ULI) 8.22 */
    3146. 

  3146.     {GTPV2_IE_F_TEID, dissect_gtpv2_f_teid},                         /* 87, Fully Qualified Tunnel Endpoint Identifier (F-TEID) 8.23 */
    3147. 

  3147.     {GTPV2_IE_TMSI, dissect_gtpv2_tmsi},                             /* 88, TMSI 8.23 */
    3148. 

  3148.     {GTPV2_IE_GLOBAL_CNID, dissect_gtpv2_g_cn_id},                   /* 89, Global CN-Id 8.25 */
    3149. 

  3149.     {GTPV2_IE_S103PDF, dissect_gtpv2_s103pdf},                       /* 90, S103 PDN Data Forwarding Info (S103PDF) 8.25 */
    3150. 

  3150.     {GTPV2_IE_S1UDF, dissect_gtpv2_s1udf},                           /* 91, S1-U Data Forwarding (S1UDF) 8.26 */
    3151. 

  3151.     {GTPV2_IE_DEL_VAL, dissect_gtpv2_delay_value},                   /* 92, Delay Value 8.29 */
    3152. 

  3152.     {GTPV2_IE_BEARER_CTX,dissect_gtpv2_bearer_ctx},                  /* 93, Bearer Context  8.31 */
    3153. 

  3153.     {GTPV2_IE_CHAR_ID, dissect_gtpv2_charging_id},                   /* 94, Charging Id */
    3154. 

  3154.     {GTPV2_IE_CHAR_CHAR, dissect_gtpv2_char_char},                   /* 95 Charging Characteristic */
    3155. 

  3155.     {GTPV2_IE_TRA_INFO, dissect_gtpv2_tra_info},                     /* 96, Trace Information 8.31 */
    3156. 

  3156.     {GTPV2_BEARER_FLAG, dissect_gtpv2_bearer_flag},                  /* 97, Bearer Flag */
    3157. 

  3157.                                                                      /* 98, Void 8.33 */
    3158. 

  3158.     {GTPV2_IE_PDN_TYPE, dissect_gtpv2_pdn_type},                     /* 99, PDN Type */
    3159. 

  3159.     {GTPV2_IE_PTI, dissect_gtpv2_pti},                               /* 100, Procedure Transaction Id */
    3160. 

  3160.     {GTPV2_IE_DRX_PARAM, dissect_gtpv2_drx_param},                   /* 101, DRX Parameter 8.36 */
    3161. 

  3161.     {GTPV2_IE_UE_NET_CAPABILITY, dissect_gtpv2_ue_net_capability},   /* 102, UE network capability 8.37 */
    3162. 

  3162.     {GTPV2_IE_MM_CONTEXT_GSM_T, dissect_gtpv2_mm_context_gsm_t},     /* 103, MM Context 8.38 GSM Key and Triplets */
    3163. 

  3163.     {GTPV2_IE_MM_CONTEXT_UTMS_CQ, dissect_gtpv2_mm_context_utms_cq}, /* 104, MM Context 8.38 */
    3164. 

  3164.     {GTPV2_IE_MM_CONTEXT_GSM_CQ, dissect_gtpv2_mm_context_gsm_cq},   /* 105, MM Context 8.38 */
    3165. 

  3165.     {GTPV2_IE_MM_CONTEXT_UTMS_Q, dissect_gtpv2_mm_context_utms_q},   /* 106, MM Context 8.38 */
    3166. 

  3166.     {GTPV2_IE_MM_CONTEXT_EPS_QQ, dissect_gtpv2_mm_context_eps_qq},   /* 107, MM Context 8.38 */
    3167. 

  3167.     {GTPV2_IE_MM_CONTEXT_UTMS_QQ, dissect_gtpv2_mm_context_utms_qq}, /* 108, MM Context 8.38 */
    3168. 

  3168.     {GTPV2_IE_PDN_CONNECTION, dissect_gtpv2_PDN_conn},		     /* 109, PDN Connection */
    3169. 

  3169.     {GTPV2_IE_PDN_NUMBERS, dissect_gtpv2_pdn_numbers},               /* 110, PDN Numbers 8.40 */
    3170. 

  3170.     {GTPV2_IE_P_TMSI, dissect_gtpv2_p_tmsi},                         /* 111, P-TMSI 8.41 */
    3171. 

  3171.     {GTPV2_IE_P_TMSI_SIG, dissect_gtpv2_p_tmsi_sig},                 /* 112, P-TMSI Signature 8.42 */
    3172. 

  3172.     {GTPV2_IE_HOP_COUNTER, dissect_gtpv2_hop_counter},               /* 113, Hop Counter 8.43 */
    3173. 

  3173.     {GTPV2_IE_UE_TIME_ZONE, dissect_gtpv2_ue_time_zone},             /* 114, UE Time Zone */
    3174. 

  3174.     {GTPV2_IE_TRACE_REFERENCE, dissect_gtpv2_trace_reference},       /* 115, Trace Reference 8.45 */
    3175. 

  3175.     {GTPV2_IE_COMPLETE_REQUEST_MSG, dissect_complete_request_msg},   /* 116, Complete Request message 8.46 */
    3176. 

  3176.     {GTPV2_IE_GUTI, dissect_gtpv2_guti},                             /* 117, GUTI 8.47 */
    3177. 

  3177.     {GTPV2_IE_F_CONTAINER, dissect_gtpv2_F_container},		     /* 118, Fully Qualified Container (F-Container) */
    3178. 

  3178.     {GTPV2_IE_F_CAUSE, dissect_gtpv2_F_cause},			     /* 119, Fully Qualified Cause (F-Cause) */
    3179. 

  3179.     {GTPV2_IE_SEL_PLMN_ID, dissect_gtpv2_sel_plmn_id},               /* 120, Selected PLMN ID 8.50 */
    3180. 

  3180.     {GTPV2_IE_TARGET_ID, dissect_gtpv2_target_id},		     /* 121, Target Identification */
    3181. 

  3181.                                                                      /* 122, Void 8.52 */
    3182. 

  3182.     {GTPV2_IE_PKT_FLOW_ID, dissect_gtpv2_pkt_flow_id},               /* 123, Packet Flow ID 8.53 */
    3183. 

  3183.     {GTPV2_IE_RAB_CONTEXT, dissect_gtpv2_rab_context},               /* 124, RAB Context 8.54 */
    3184. 

  3184.     {GTPV2_IE_S_RNC_PDCP_CTX_INFO, dissect_gtpv2_s_rnc_pdcp_ctx_info},  /* 125, Source RNC PDCP context info 8.55 */
    3185. 

  3185.     {GTPV2_IE_UDP_S_PORT_NR, dissect_udp_s_port_nr},		     /* 126, UDP Source Port Number 8.56 */
    3186. 

  3186.     {GTPV2_IE_APN_RESTRICTION, dissect_gtpv2_apn_rest},		     /* 127, APN Restriction */
    3187. 

  3187.     {GTPV2_IE_SEL_MODE,dissect_gtpv2_selec_mode},		     /* 128 Selection Mode */
    3188. 

  3188.     {GTPV2_IE_SOURCE_IDENT, dissect_gtpv2_source_ident},	     /* 129, Source Identification 8.59 */
    3189. 

  3189.     {GTPV2_IE_BEARER_CONTROL_MODE,dissect_gtpv2_bearer_control_mode}, /* 130 Bearer Control Mode*/
    3190. 

  3190.     {GTPV2_IE_CNG_REP_ACT ,dissect_gtpv2_cng_rep_act},		     /* 131 Change Reporting Action 8.61 */
    3191. 

  3191.     {GTPV2_IE_FQ_CSID, dissect_gtpv2_fq_csid},			     /* 132, Fully Qualified PDN Connection Set Identifier (FQ-CSID) 8.62 */
    3192. 

  3192.     {GTPV2_IE_CHANNEL_NEEDED, dissect_gtpv2_channel_needed},	     /* 133, Channel Needed 8.63 */
    3193. 

  3193.     {GTPV2_IE_EMLPP_PRI, dissect_gtpv2_emlpp_pri},		     /* 134, eMLPP Priority 8.64 */
    3194. 

  3194.     {GTPV2_IE_NODE_TYPE ,dissect_gtpv2_node_type},		     /* 135 Node Type 8.65 */
    3195. 

  3195.     {GTPV2_IE_FQDN, dissect_gtpv2_fqdn},			     /* 136 8.66 Fully Qualified Domain Name (FQDN) */
    3196. 

  3196.     {GTPV2_IE_TI, dissect_gtpv2_ti},				     /* 137 8.68	Transaction Identifier (TI) */
    3197. 

  3197. 								     /* 137-254 Spare. For future use. FFS */
    3198. 

  3198.     {GTPV2_IE_PRIVATE_EXT,dissect_gtpv2_private_ext},
    3199. 

  3199. 

  3200.     {0, dissect_gtpv2_unknown}
    3201. 

  3201. };
    3202. 

  3202. 

  3203. 

  3204. 

  3205. static void
    3206. 

  3206. dissect_gtpv2_ie_common(tvbuff_t * tvb, packet_info * pinfo _U_, proto_tree * tree, gint offset, guint8 message_type)
    3207. 

  3207. {
    3208. 

  3208.     proto_tree *ie_tree;
    3209. 

  3209.     proto_item *ti;
    3210. 

  3210.     tvbuff_t *ie_tvb;
    3211. 

  3211.     guint8 type, instance;
    3212. 

  3212.     guint16 length;
    3213. 

  3213.     int i;
    3214. 

  3214.     /*
    3215. 

  3215.      * Octets   8   7   6   5       4   3   2   1
    3216. 

  3216.      *  1       Type
    3217. 

  3217.      *  2-3     Length = n
    3218. 

  3218.      *  4       CR          Spare   Instance
    3219. 

  3219.      * 5-(n+4)  IE specific data
    3220. 

  3220.      */
    3221. 

  3221.     while(offset < (gint)tvb_reported_length(tvb)){
    3222. 

  3222.         /* Get the type and length */
    3223. 

  3223.         type = tvb_get_guint8(tvb,offset);
    3224. 

  3224.         length = tvb_get_ntohs(tvb, offset+1);
    3225. 

  3225.         ti = proto_tree_add_text(tree, tvb, offset, 4 + length, "%s : ", val_to_str(type, gtpv2_element_type_vals, "Unknown"));
    3226. 

  3226.         ie_tree = proto_item_add_subtree(ti, ett_gtpv2_ie);
    3227. 

  3227.         /* Octet 1 */
    3228. 

  3228.         proto_tree_add_item(ie_tree, hf_gtpv2_ie, tvb, offset, 1, FALSE);
    3229. 

  3229.         offset++;
    3230. 

  3230. 

  3231.         /*Octet 2 - 3 */
    3232. 

  3232.         proto_tree_add_item(ie_tree, hf_gtpv2_ie_len, tvb, offset, 2, FALSE);
    3233. 

  3233.         offset+=2;
    3234. 

  3234.         /* CR Spare Instance Octet 4*/
    3235. 

  3235.         proto_tree_add_item(ie_tree, hf_gtpv2_cr, tvb, offset, 1, FALSE);
    3236. 

  3236. 

  3237.         instance = tvb_get_guint8(tvb,offset)& 0x0f;
    3238. 

  3238.         proto_tree_add_item(ie_tree, hf_gtpv2_instance, tvb, offset, 1, FALSE);
    3239. 

  3239.         offset++;
    3240. 

  3240. 

  3241.         /* TODO: call IE dissector here */
    3242. 

  3242.         if(type==GTPV2_IE_RESERVED){
    3243. 

  3243.             /* Treat IE type zero specal as type zero is used to end the loop in the else branch */
    3244. 

  3244.             proto_tree_add_text(ie_tree, tvb, offset, length, "IE type Zero is Reserved and should not be used");
    3245. 

  3245.         }else{
    3246. 

  3246.             i = -1;
    3247. 

  3247.             /* Loop over the IE dissector list to se if we find an entry, the last entry will have ie_type=0 breaking the loop */
    3248. 

  3248.             while (gtpv2_ies[++i].ie_type){
    3249. 

  3249.                 if (gtpv2_ies[i].ie_type == type)
    3250. 

  3250.                     break;
    3251. 

  3251.             }
    3252. 

  3252.             /* Just give the IE dissector the IE */
    3253. 

  3253.             ie_tvb = tvb_new_subset_remaining(tvb, offset);
    3254. 

  3254.             (*gtpv2_ies[i].decode) (ie_tvb, pinfo , ie_tree, ti, length, message_type, instance);
    3255. 

  3255.         }
    3256. 

  3256. 

  3257.         offset = offset + length;
    3258. 

  3258.     }
    3259. 

  3259. }
    3260. 

  3260. 

  3261. static void
    3262. 

  3262. dissect_gtpv2(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree)
    3263. 

  3263. {
    3264. 

  3264.     proto_tree *gtpv2_tree, *flags_tree;
    3265. 

  3265.     proto_item *ti, *tf;
    3266. 

  3266.     guint8 message_type, t_flag;
    3267. 

  3267.     int offset = 0;
    3268. 

  3268. 

  3269. 

  3270.     /* Currently we get called from the GTP dissector no need to check the version */
    3271. 

  3271.     col_set_str(pinfo->cinfo, COL_PROTOCOL, "GTPv2");
    3272. 

  3272.     col_clear(pinfo->cinfo, COL_INFO);
    3273. 

  3273. 

  3274.     /* message type is in octet 2 */
    3275. 

  3275.     message_type = tvb_get_guint8(tvb,1);
    3276. 

  3276.     col_add_str(pinfo->cinfo, COL_INFO, val_to_str(message_type, gtpv2_message_type_vals, "Unknown"));
    3277. 

  3277. 

  3278. 

  3279.     proto_tree_add_item(tree, proto_gtpv2, tvb, offset, -1, FALSE);
    3280. 

  3280. 

  3281.     if (tree) {
    3282. 

  3282.         ti = proto_tree_add_text(tree, tvb, offset, -1, "%s", val_to_str(message_type, gtpv2_message_type_vals, "Unknown"));
    3283. 

  3283.         gtpv2_tree = proto_item_add_subtree(ti, ett_gtpv2);
    3284. 

  3284. 

  3285.         /* Control Plane GTP uses a variable length header. Control Plane GTP header
    3286. 

  3286.          * length shall be a multiple of 4 octets.
    3287. 

  3287.          * Figure 5.1-1 illustrates the format of the GTPv2-C Header.
    3288. 

  3288.          * Bits       8  7  6   5       4   3       2       1
    3289. 

  3289.          * Octets   1 Version   P       T   Spare   Spare   Spare
    3290. 

  3290.          *          2 Message Type
    3291. 

  3291.          *          3 Message Length (1st Octet)
    3292. 

  3292.          *          4 Message Length (2nd Octet)
    3293. 

  3293.          *  m-k(m+3)    If T flag is set to 1, then TEID shall be placed into octets 5-8.
    3294. 

  3294.          *              Otherwise, TEID field is not present at all.
    3295. 

  3295.          *  n-(n+2)   Sequence Number
    3296. 

  3296.          * (n+3)      Spare
    3297. 

  3297.          * Figure 5.1-1: General format of GTPv2 Header for Control Plane
    3298. 

  3298.          */
    3299. 

  3299.         tf = proto_tree_add_item(gtpv2_tree, hf_gtpv2_flags, tvb, offset, 1, FALSE);
    3300. 

  3300.         flags_tree = proto_item_add_subtree(tf, ett_gtpv2_flags);
    3301. 

  3301. 

  3302.         /* Octet 1 */
    3303. 

  3303.         t_flag = (tvb_get_guint8(tvb,offset) & 0x08)>>3;
    3304. 

  3304.         proto_tree_add_item(flags_tree, hf_gtpv2_version, tvb, offset, 1, FALSE);
    3305. 

  3305.         proto_tree_add_item(flags_tree, hf_gtpv2_p, tvb, offset, 1, FALSE);
    3306. 

  3306.         proto_tree_add_item(flags_tree, hf_gtpv2_t, tvb, offset, 1, FALSE);
    3307. 

  3307.         offset++;
    3308. 

  3308. 

  3309.         /* Octet 2 */
    3310. 

  3310.         proto_tree_add_item(gtpv2_tree, hf_gtpv2_message_type, tvb, offset, 1, FALSE);
    3311. 

  3311.         offset++;
    3312. 

  3312.         /* Octet 3 - 4 */
    3313. 

  3313.         proto_tree_add_item(gtpv2_tree, hf_gtpv2_msg_length, tvb, offset, 2, FALSE);
    3314. 

  3314.         offset+=2;
    3315. 

  3315. 

  3316.         if(t_flag){
    3317. 

  3317.             /* Tunnel Endpoint Identifier 4 octets */
    3318. 

  3318.             proto_tree_add_item(gtpv2_tree, hf_gtpv2_teid, tvb, offset, 4, FALSE);
    3319. 

  3319.             offset+=4;
    3320. 

  3320.         }
    3321. 

  3321.         /* Sequence Number 3 octets */
    3322. 

  3322.         proto_tree_add_item(gtpv2_tree, hf_gtpv2_seq, tvb, offset, 3, FALSE);
    3323. 

  3323.         offset+=3;
    3324. 

  3324. 

  3325.         /* Spare 1 octet */
    3326. 

  3326.         proto_tree_add_item(gtpv2_tree, hf_gtpv2_spare, tvb, offset, 1, FALSE);
    3327. 

  3327.         offset+=1;
    3328. 

  3328. 

  3329.         dissect_gtpv2_ie_common(tvb, pinfo, gtpv2_tree, offset, message_type);
    3330. 

  3330.     }
    3331. 

  3331. 

  3332. 

  3333. }
    3334. 

  3334. void proto_register_gtpv2(void)
    3335. 

  3335. {
    3336. 

  3336.     static hf_register_info hf_gtpv2[] = {
    3337. 

  3337. 		{ &hf_gtpv2_reserved,
    3338. 

  3338. 			{"Reserved bit(s)", "gtpv2.reserved",
    3339. 

  3339. 				FT_UINT8, BASE_DEC, NULL, 0x0,
    3340. 

  3340. 				"Reserved", HFILL }
    3341. 

  3341. 		},
    3342. 

  3342. 		{ &hf_gtpv2_spare_half_octet,
    3343. 

  3343. 			{"Spare half octet", "gtpv2.spare_half_octet",
    3344. 

  3344. 				FT_UINT8, BASE_DEC, NULL, 0x0,
    3345. 

  3345. 				NULL, HFILL }
    3346. 

  3346. 		},
    3347. 

  3347. 		{ &hf_gtpv2_spare_bits,
    3348. 

  3348. 			{"Spare bit(s)", "gtpv2.spare_bits",
    3349. 

  3349. 				FT_UINT8, BASE_DEC, NULL, 0x0,
    3350. 

  3350. 				NULL, HFILL }
    3351. 

  3351. 		},
    3352. 

  3352.         {&hf_gtpv2_flags,
    3353. 

  3353.         {"Flags", "gtpv2.flags",
    3354. 

  3354.         FT_UINT8, BASE_DEC, NULL, 0x0,
    3355. 

  3355.         NULL, HFILL}
    3356. 

  3356.         },
    3357. 

  3357.         {&hf_gtpv2_version,
    3358. 

  3358.         {"Version", "gtpv2.version",
    3359. 

  3359.         FT_UINT8, BASE_DEC, NULL, 0xe0,
    3360. 

  3360.         NULL, HFILL}
    3361. 

  3361.         },
    3362. 

  3362.         {&hf_gtpv2_p,
    3363. 

  3363.         {"P", "gtpv2.p",
    3364. 

  3364.         FT_UINT8, BASE_DEC, NULL, 0x10,
    3365. 

  3365.         "If Piggybacked message is present or not", HFILL}
    3366. 

  3366.         },
    3367. 

  3367.         { &hf_gtpv2_t,
    3368. 

  3368.         {"T", "gtpv2.t",
    3369. 

  3369.         FT_UINT8, BASE_DEC, NULL, 0x08,
    3370. 

  3370.         "If TEID field is present or not", HFILL}
    3371. 

  3371.         },
    3372. 

  3372.         { &hf_gtpv2_message_type,
    3373. 

  3373.         {"Message Type", "gtpv2.message_type",
    3374. 

  3374.         FT_UINT8, BASE_DEC, VALS(gtpv2_message_type_vals), 0x0,
    3375. 

  3375.         NULL, HFILL}
    3376. 

  3376.         },
    3377. 

  3377.         { &hf_gtpv2_msg_length,
    3378. 

  3378.         {"Message Length", "gtpv2.msg_lengt",
    3379. 

  3379.         FT_UINT16, BASE_DEC, NULL, 0x0,
    3380. 

  3380.         NULL, HFILL}
    3381. 

  3381.         },
    3382. 

  3382.         { &hf_gtpv2_teid,
    3383. 

  3383.         {"Tunnel Endpoint Identifier", "gtpv2.teid",
    3384. 

  3384.         FT_UINT32, BASE_DEC, NULL, 0x0,
    3385. 

  3385.         "TEID", HFILL}
    3386. 

  3386.         },
    3387. 

  3387.         { &hf_gtpv2_seq,
    3388. 

  3388.         {"Sequence Number", "gtpv2.seq",
    3389. 

  3389.         FT_UINT32, BASE_DEC, NULL, 0x0,
    3390. 

  3390.         "SEQ", HFILL}
    3391. 

  3391.         },
    3392. 

  3392.         { &hf_gtpv2_spare,
    3393. 

  3393.         {"Spare", "gtpv2.spare",
    3394. 

  3394.         FT_UINT16, BASE_DEC, NULL, 0x0,
    3395. 

  3395.         NULL, HFILL}
    3396. 

  3396.         },
    3397. 

  3397.         { &hf_gtpv2_ie,
    3398. 

  3398.         {"IE Type", "gtpv2.ie_type",
    3399. 

  3399.         FT_UINT8, BASE_DEC, VALS(gtpv2_element_type_vals), 0x0,
    3400. 

  3400.         NULL, HFILL}
    3401. 

  3401.         },
    3402. 

  3402.         { &hf_gtpv2_ie_len,
    3403. 

  3403.         {"IE Length", "gtpv2.ie_len",
    3404. 

  3404.         FT_UINT16, BASE_DEC, NULL, 0x0,
    3405. 

  3405.         "length of the information element excluding the first four octets", HFILL}
    3406. 

  3406.         },
    3407. 

  3407.         { &hf_gtpv2_cr,
    3408. 

  3408.         {"CR flag", "gtpv2.cr",
    3409. 

  3409.         FT_UINT8, BASE_DEC, NULL, 0xe0,
    3410. 

  3410.         NULL, HFILL}
    3411. 

  3411.         },
    3412. 

  3412.         { &hf_gtpv2_instance,
    3413. 

  3413.         {"Instance", "gtpv2.instance",
    3414. 

  3414.         FT_UINT8, BASE_DEC, NULL, 0x0f,
    3415. 

  3415.         NULL, HFILL}
    3416. 

  3416.         },
    3417. 

  3417.         {&hf_gtpv2_imsi,
    3418. 

  3418.         {"IMSI(International Mobile Subscriber Identity number)", "gtpv2.imsi",
    3419. 

  3419.         FT_STRING, BASE_NONE, NULL, 0,
    3420. 

  3420.         NULL, HFILL}
    3421. 

  3421.         },
    3422. 

  3422. 		{ &hf_gtpv2_ipv4_addr,
    3423. 

  3423. 			{"IPv4 Address", "gtpv2.ipv4_addr",
    3424. 

  3424. 				FT_IPv4, BASE_NONE, NULL, 0x0,
    3425. 

  3425. 				NULL, HFILL}
    3426. 

  3426. 		},
    3427. 

  3427.         { &hf_gtpv2_cause,
    3428. 

  3428.         {"Cause", "gtpv2.cause",
    3429. 

  3429.         FT_UINT8, BASE_DEC|BASE_EXT_STRING, &gtpv2_cause_vals_ext, 0x0,
    3430. 

  3430.         NULL, HFILL}
    3431. 

  3431.         },
    3432. 

  3432.         {&hf_gtpv2_cause_cs,
    3433. 

  3433.         {"CS (Cause Source)","gtpv2.cs",
    3434. 

  3434.         FT_BOOLEAN, 8, TFS(&gtpv2_cause_cs), 0x01,
    3435. 

  3435.         NULL, HFILL}
    3436. 

  3436.         },
    3437. 

  3437. 		{ &hf_gtpv2_cause_bce,
    3438. 

  3438.         {"BCE (Bearer Context IE Error)","gtpv2.bce",
    3439. 

  3439.         FT_BOOLEAN, 8, NULL, 0x02,
    3440. 

  3440.         NULL, HFILL}
    3441. 

  3441.         },
    3442. 

  3442. 		{ &hf_gtpv2_cause_pce,
    3443. 

  3443.         {"PCE (PDN Connection IE Error)","gtpv2.pce",
    3444. 

  3444.         FT_BOOLEAN, 8, NULL, 0x04,
    3445. 

  3445.         NULL, HFILL}
    3446. 

  3446.         },
    3447. 

  3447. 		{ &hf_gtpv2_cause_off_ie_t,
    3448. 

  3448.         {"Type of the offending IE", "gtpv2.cause_off_ie_t",
    3449. 

  3449.         FT_UINT8, BASE_DEC, VALS(gtpv2_element_type_vals), 0x0,
    3450. 

  3450.         NULL, HFILL}
    3451. 

  3451.         },
    3452. 

  3452.         { &hf_gtpv2_rec,
    3453. 

  3453.         {"Restart Counter", "gtpv2.rec",
    3454. 

  3454.         FT_UINT8, BASE_DEC, NULL, 0x0,
    3455. 

  3455.         NULL, HFILL}
    3456. 

  3456.         },
    3457. 

  3457.         {&hf_gtpv2_apn,
    3458. 

  3458.         {"APN (Access Point Name)", "gtpv2.apn",
    3459. 

  3459.         FT_STRING, BASE_NONE, NULL, 0x0,
    3460. 

  3460.         NULL, HFILL}
    3461. 

  3461.         },
    3462. 

  3462.         {&hf_gtpv2_ambr_up,
    3463. 

  3463.         {"AMBR Uplink (Aggregate Maximum Bit Rate for Uplink)", "gtpv2.ambr_up",
    3464. 

  3464.         FT_UINT32, BASE_DEC, NULL, 0x0,
    3465. 

  3465.         NULL, HFILL}
    3466. 

  3466.         },
    3467. 

  3467.         {&hf_gtpv2_ambr_down,
    3468. 

  3468.         {"AMBR Downlink(Aggregate Maximum Bit Rate for Downlink)", "gtpv2.ambr_down",
    3469. 

  3469.         FT_UINT32, BASE_DEC, NULL, 0x0,
    3470. 

  3470.         NULL, HFILL}
    3471. 

  3471.         },
    3472. 

  3472.         {&hf_gtpv2_ebi,
    3473. 

  3473.         {"EPS Bearer ID (EBI)", "gtpv2.ebi",
    3474. 

  3474.         FT_UINT8, BASE_DEC, NULL, 0x0f,
    3475. 

  3475.         NULL, HFILL}
    3476. 

  3476.         },
    3477. 

  3477.         { &hf_gtpv2_ip_address_ipv4,
    3478. 

  3478.         {"IP address IPv4", "gtpv2.ip_address_ipv4",
    3479. 

  3479.         FT_IPv4, BASE_NONE, NULL, 0x0,
    3480. 

  3480.         NULL, HFILL}
    3481. 

  3481.         },
    3482. 

  3482.         { &hf_gtpv2_ip_address_ipv6,
    3483. 

  3483.         {"IP address IPv6", "gtpv2.ip_address_ipv6",
    3484. 

  3484.         FT_IPv6, BASE_NONE, NULL, 0x0,
    3485. 

  3485.         NULL, HFILL}
    3486. 

  3486.         },
    3487. 

  3487.         {&hf_gtpv2_mei,
    3488. 

  3488.         {"MEI(Mobile Equipment Identity)", "gtpv2.mei",
    3489. 

  3489.         FT_STRING, BASE_NONE, NULL, 0,
    3490. 

  3490.         NULL, HFILL}
    3491. 

  3491.         },
    3492. 

  3492. 		{ &hf_gtpv2_pdn_numbers_nsapi,
    3493. 

  3493. 			{"NSAPI", "gtpv2.pdn_numbers_nsapi",
    3494. 

  3494. 				FT_UINT8, BASE_DEC, NULL, 0x0f, NULL, HFILL}
    3495. 

  3495. 		},
    3496. 

  3496. 		{ &hf_gtpv2_p_tmsi,
    3497. 

  3497. 			{"Packet TMSI (P-TMSI)", "gtpv2.p_tmsi",
    3498. 

  3498. 				FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL}
    3499. 

  3499. 		},
    3500. 

  3500. 		{ &hf_gtpv2_p_tmsi_sig,
    3501. 

  3501. 			{"P-TMSI Signature", "gtpv2.p_tmsi_sig",
    3502. 

  3502. 				FT_UINT24, BASE_HEX, NULL, 0x0, NULL, HFILL}
    3503. 

  3503. 		},
    3504. 

  3504.         {&hf_gtpv2_daf,
    3505. 

  3505.         {"DAF (Dual Address Bearer Flag)", "gtpv2.daf",
    3506. 

  3506.         FT_BOOLEAN, 8, NULL, 0x80, NULL, HFILL}
    3507. 

  3507.         },
    3508. 

  3508.         {&hf_gtpv2_dtf,
    3509. 

  3509.         {"DTF (Direct Tunnel Flag)","gtpv2.dtf",
    3510. 

  3510.         FT_BOOLEAN, 8, NULL, 0x40, NULL, HFILL}
    3511. 

  3511.         },
    3512. 

  3512.         {&hf_gtpv2_hi,
    3513. 

  3513.         {"HI (Handover Indication)", "gtpv2.hi",
    3514. 

  3514.         FT_BOOLEAN, 8, NULL, 0x20, NULL, HFILL}
    3515. 

  3515.         },
    3516. 

  3516.         {&hf_gtpv2_dfi,
    3517. 

  3517.         {"DFI (Direct Forwarding Indication)", "gtpv2.dfi",
    3518. 

  3518.         FT_BOOLEAN, 8, NULL, 0x10, NULL, HFILL}
    3519. 

  3519.         },
    3520. 

  3520.         {&hf_gtpv2_oi,
    3521. 

  3521.         {"OI (Operation Indication)","gtpv2.oi",
    3522. 

  3522.         FT_BOOLEAN, 8, NULL, 0x08, NULL, HFILL}
    3523. 

  3523.         },
    3524. 

  3524.         {&hf_gtpv2_isrsi,
    3525. 

  3525.         {"ISRSI (Idle mode Signalling Reduction Supported Indication)", "gtpv2.isrsi",
    3526. 

  3526.         FT_BOOLEAN, 8, NULL, 0x04, NULL, HFILL}
    3527. 

  3527.         },
    3528. 

  3528.         {&hf_gtpv2_israi,
    3529. 

  3529.         {"ISRAI (Idle mode Signalling Reduction Activation Indication)",    "gtpv2.israi",
    3530. 

  3530.         FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL}
    3531. 

  3531.         },
    3532. 

  3532.         {&hf_gtpv2_sgwci,
    3533. 

  3533.         {"SGWCI (SGW Change Indication)", "gtpv2.sgwci",
    3534. 

  3534.         FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL}
    3535. 

  3535.         },
    3536. 

  3536.         {&hf_gtpv2_sqci,
    3537. 

  3537.         {"SQCI (Subscribed QoS Change Indication", "gtpv2.sqci",
    3538. 

  3538.         FT_BOOLEAN, 8, NULL, 0x80, NULL, HFILL}
    3539. 

  3539.         },
    3540. 

  3540.         {&hf_gtpv2_uimsi,
    3541. 

  3541.         {"UIMSI (Unauthenticated IMSI)", "gtpv2.uimsi",
    3542. 

  3542.         FT_BOOLEAN, 8, NULL, 0x40, NULL, HFILL}
    3543. 

  3543.         },
    3544. 

  3544.         {&hf_gtpv2_cfsi,
    3545. 

  3545.         {"CFSI (Change F-TEID support indication)", "gtpv2.cfsi",
    3546. 

  3546.         FT_BOOLEAN, 8, NULL, 0x20, NULL, HFILL}
    3547. 

  3547.         },
    3548. 

  3548.         {&hf_gtpv2_crsi,
    3549. 

  3549.         {"CRSI (Change Reporting support indication):", "gtpv2.crsi",
    3550. 

  3550.         FT_BOOLEAN, 8, NULL, 0x10, NULL, HFILL}
    3551. 

  3551.         },
    3552. 

  3552.         {&hf_gtpv2_ps,
    3553. 

  3553.         {"PS (Piggybacking Supported).)", "gtpv2.ps",
    3554. 

  3554.         FT_BOOLEAN, 8, NULL, 0x08, NULL, HFILL}
    3555. 

  3555.         },
    3556. 

  3556.         {&hf_gtpv2_pt,
    3557. 

  3557.         {"PT (Protocol Type)", "gtpv2.pt",
    3558. 

  3558.         FT_BOOLEAN, 8, NULL, 0x04, NULL, HFILL}
    3559. 

  3559.         },
    3560. 

  3560.         {&hf_gtpv2_si,
    3561. 

  3561.         {"SI (Scope Indication)", "gtpv2.si",
    3562. 

  3562.         FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL}
    3563. 

  3563.         },
    3564. 

  3564.         {&hf_gtpv2_msv,
    3565. 

  3565.         {"MSV (MS Validated)", "gtpv2.msv",
    3566. 

  3566.         FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL}
    3567. 

  3567.         },
    3568. 

  3568. 		{&hf_gtpv2_ccrsi,
    3569. 

  3569.         {"CCRSI (CSG Change Reporting support indication)", "gtpv2.ccrsi",
    3570. 

  3570.         FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL}
    3571. 

  3571.         },
    3572. 

  3572.         { &hf_gtpv2_pdn_type,
    3573. 

  3573.         {"PDN Type", "gtpv2.pdn_type",
    3574. 

  3574.         FT_UINT8, BASE_DEC, VALS(gtpv2_pdn_type_vals), 0x07,
    3575. 

  3575.         NULL, HFILL}
    3576. 

  3576.         },
    3577. 

  3577. 		{ &hf_gtpv2_tra_info,
    3578. 

  3578. 			{"Trace ID","gtpv2.tra_info",
    3579. 

  3579. 				FT_STRING, BASE_NONE, NULL, 0x0,
    3580. 

  3580. 				NULL, HFILL}
    3581. 

  3581. 		},
    3582. 

  3582. 		{ &hf_gtpv2_tra_info_msc_momt_calls,
    3583. 

  3583. 			{"MO and MT calls","gtpv2.tra_info_msc_momt_calls",
    3584. 

  3584. 				FT_UINT8, BASE_DEC, NULL, 0x01,
    3585. 

  3585. 				"MSC Server", HFILL}
    3586. 

  3586. 		},
    3587. 

  3587. 		{ &hf_gtpv2_tra_info_msc_momt_sms,
    3588. 

  3588. 			{"MO and MT SMS","gtpv2.tra_info_msc_momt_sms",
    3589. 

  3589. 				FT_UINT8, BASE_DEC, NULL, 0x02,
    3590. 

  3590. 				"MSC Server", HFILL}
    3591. 

  3591. 		},
    3592. 

  3592. 		{ &hf_gtpv2_tra_info_msc_lu_imsi_ad,
    3593. 

  3593. 			{"LU, IMSI attach, IMSI detach","gtpv2.tra_info_msc_lu_imsi_ad",
    3594. 

  3594. 				FT_UINT8, BASE_DEC, NULL, 0x04,
    3595. 

  3595. 				"MSC Server", HFILL}
    3596. 

  3596. 		},
    3597. 

  3597. 		{ &hf_gtpv2_tra_info_msc_handovers,
    3598. 

  3598. 			{"Handovers","gtpv2.tra_info_msc_handovers",
    3599. 

  3599. 				FT_UINT8, BASE_DEC, NULL, 0x08,
    3600. 

  3600. 				"MSC Server", HFILL}
    3601. 

  3601. 		},
    3602. 

  3602. 		{ &hf_gtpv2_tra_info_msc_ss,
    3603. 

  3603. 			{"SS","gtpv2.tra_info_msc_ss",
    3604. 

  3604. 				FT_UINT8, BASE_DEC, NULL, 0x10,
    3605. 

  3605. 				"MSC Server", HFILL}
    3606. 

  3606. 		},
    3607. 

  3607. 		{ &hf_gtpv2_tra_info_mgw_context,
    3608. 

  3608. 			{"Context","gtpv2.tra_info_mgw_context",
    3609. 

  3609. 				FT_UINT8, BASE_DEC, NULL, 0x01,
    3610. 

  3610. 				"MGW", HFILL}
    3611. 

  3611. 		},
    3612. 

  3612. 		{ &hf_gtpv2_tra_info_sgsn_pdp_context,
    3613. 

  3613. 			{"PDP context","gtpv2.tra_info_sgsn_pdp_context",
    3614. 

  3614. 				FT_UINT8, BASE_DEC, NULL, 0x01,
    3615. 

  3615. 				"SGSN", HFILL}
    3616. 

  3616. 		},
    3617. 

  3617. 		{ &hf_gtpv2_tra_info_sgsn_momt_sms,
    3618. 

  3618. 			{"MO and MT SMS","gtpv2.tra_info_sgsn_momt_sms",
    3619. 

  3619. 				FT_UINT8, BASE_DEC, NULL, 0x02,
    3620. 

  3620. 				"SGSN", HFILL}
    3621. 

  3621. 		},
    3622. 

  3622. 		{ &hf_gtpv2_tra_info_sgsn_rau_gprs_ad,
    3623. 

  3623. 			{"RAU, GPRS attach, GPRS detach","gtpv2.tra_info_sgsn_rau_gprs_ad",
    3624. 

  3624. 				FT_UINT8, BASE_DEC, NULL, 0x04,
    3625. 

  3625. 				"SGSN", HFILL}
    3626. 

  3626. 		},
    3627. 

  3627. 		{ &hf_gtpv2_tra_info_sgsn_mbms,
    3628. 

  3628. 			{"MBMS Context","gtpv2.tra_into_sgsn_mbms",
    3629. 

  3629. 				FT_UINT8, BASE_DEC, NULL, 0x08,
    3630. 

  3630. 				"SGSN", HFILL}
    3631. 

  3631. 		},
    3632. 

  3632. 		{ &hf_gtpv2_tra_info_sgsn_reserved,
    3633. 

  3633. 			{"Reserved","gtpv2.",
    3634. 

  3634. 				FT_UINT8, BASE_DEC, NULL, 0x0,
    3635. 

  3635. 				"SGSN", HFILL}
    3636. 

  3636. 		},
    3637. 

  3637. 		{ &hf_gtpv2_tra_info_ggsn_pdp,
    3638. 

  3638. 			{"PDP Cpntext","gtpv2.tra_info_ggsn_pdp",
    3639. 

  3639. 				FT_UINT8, BASE_DEC, NULL, 0x01,
    3640. 

  3640. 				"GGSN", HFILL}
    3641. 

  3641. 		},
    3642. 

  3642. 		{ &hf_gtpv2_tra_info_ggsn_mbms,
    3643. 

  3643. 			{"MBMS Context","gtpv2.tra_info_ggsn_mbms",
    3644. 

  3644. 				FT_UINT8, BASE_DEC, NULL, 0x02,
    3645. 

  3645. 				"GGSN", HFILL}
    3646. 

  3646. 		},
    3647. 

  3647. 		{ &hf_gtpv2_tra_info_bm_sc,
    3648. 

  3648. 			{"MBMS Multicast service activation","gtpv2.tra_info_bm_sc",
    3649. 

  3649. 				FT_UINT8, BASE_DEC, NULL, 0x01,
    3650. 

  3650. 				"BM-SC", HFILL}
    3651. 

  3651. 		},
    3652. 

  3652. 		{ &hf_gtpv2_tra_info_mme_sgw_ss,
    3653. 

  3653. 			{"Session setup","gtpv2.tra_info_mme_sgw_ss",
    3654. 

  3654. 				FT_UINT8, BASE_DEC, NULL, 0x01,
    3655. 

  3655. 				"MME", HFILL}
    3656. 

  3656. 		},
    3657. 

  3657. 		{ &hf_gtpv2_tra_info_mme_sgw_sr,
    3658. 

  3658. 			{"Service Request","gtpv2.tra_info_mme_sgw_sr",
    3659. 

  3659. 				FT_UINT8, BASE_DEC, NULL, 0x02,
    3660. 

  3660. 				"MME", HFILL}
    3661. 

  3661. 		},
    3662. 

  3662. 		{ &hf_gtpv2_tra_info_mme_sgw_iataud,
    3663. 

  3663. 			{"Initial Attach, Tracking area update, Detach","gtpv2.tra_info_mme_sgw_iataud",
    3664. 

  3664. 				FT_UINT8, BASE_DEC, NULL, 0x04,
    3665. 

  3665. 				"MME", HFILL}
    3666. 

  3666. 		},
    3667. 

  3667. 		{ &hf_gtpv2_tra_info_lne_msc_s,
    3668. 

  3668. 			{"MSC-S","gtpv2.tra_info_lne_msc_s",
    3669. 

  3669. 				FT_UINT8, BASE_DEC, NULL, 0x01,
    3670. 

  3670. 				"List of NE Types", HFILL}
    3671. 

  3671. 		},
    3672. 

  3672. 		{ &hf_gtpv2_tra_info_lne_mgw,
    3673. 

  3673. 			{"MGW","gtpv2.tra_info_lne_mgw",
    3674. 

  3674. 				FT_UINT8, BASE_DEC, NULL, 0x02,
    3675. 

  3675. 				"List of NE Types", HFILL}
    3676. 

  3676. 		},
    3677. 

  3677. 		{ &hf_gtpv2_tra_info_lne_sgsn,
    3678. 

  3678. 			{"SGSN","gtpv2.tra_info_lne_sgsn",
    3679. 

  3679. 				FT_UINT8, BASE_DEC, NULL, 0x04,
    3680. 

  3680. 				"List of NE Types", HFILL}
    3681. 

  3681. 		},
    3682. 

  3682. 		{ &hf_gtpv2_tra_info_lne_ggsn,
    3683. 

  3683. 			{"GGSN","gtpv2.tra_info_lne_ggsn",
    3684. 

  3684. 				FT_UINT8, BASE_DEC, NULL, 0x08,
    3685. 

  3685. 				"List of NE Types", HFILL}
    3686. 

  3686. 		},
    3687. 

  3687. 		{ &hf_gtpv2_tra_info_lne_rnc,
    3688. 

  3688. 			{"RNC","gtpv2.tra_info_lne_rnc",
    3689. 

  3689. 				FT_UINT8, BASE_DEC, NULL, 0x10,
    3690. 

  3690. 				"List of NE Types", HFILL}
    3691. 

  3691. 		},
    3692. 

  3692. 		{ &hf_gtpv2_tra_info_lne_bm_sc,
    3693. 

  3693. 			{"BM-SC","gtpv2.tra_info_lne_bm_sc",
    3694. 

  3694. 				FT_UINT8, BASE_DEC, NULL, 0x20,
    3695. 

  3695. 				"List of NE Types", HFILL}
    3696. 

  3696. 		},
    3697. 

  3697. 		{ &hf_gtpv2_tra_info_lne_mme,
    3698. 

  3698. 			{"MME","gtpv2.tra_info_lne_mme",
    3699. 

  3699. 				FT_UINT8, BASE_DEC, NULL, 0x40,
    3700. 

  3700. 				"List of NE Types", HFILL}
    3701. 

  3701. 		},
    3702. 

  3702. 		{ &hf_gtpv2_tra_info_lne_sgw,
    3703. 

  3703. 			{"SGW","gtpv2.tra_info_lne_sgw",
    3704. 

  3704. 				FT_UINT8, BASE_DEC, NULL, 0x80,
    3705. 

  3705. 				"List of NE Types", HFILL}
    3706. 

  3706. 		},
    3707. 

  3707. 		{ &hf_gtpv2_tra_info_lne_pdn_gw,
    3708. 

  3708. 			{"PDN GW","gtpv2.tra_info_lne_pdn_gw",
    3709. 

  3709. 				FT_UINT8, BASE_DEC, NULL, 0x01,
    3710. 

  3710. 				"List of NE Types", HFILL}
    3711. 

  3711. 		},
    3712. 

  3712. 		{ &hf_gtpv2_tra_info_lne_enb,
    3713. 

  3713. 			{"eNB","gtpv2.tra_info_lne_enb",
    3714. 

  3714. 				FT_UINT8, BASE_DEC, NULL, 0x02,
    3715. 

  3715. 				"List of NE Types", HFILL}
    3716. 

  3716. 		},
    3717. 

  3717. 		{ &hf_gtpv2_tra_info_tdl,
    3718. 

  3718. 			{"Trace Depth Length","gtpv2.tra_info_tdl",
    3719. 

  3719. 				FT_UINT8, BASE_DEC, NULL, 0x0,
    3720. 

  3720. 				NULL, HFILL}
    3721. 

  3721. 		},
    3722. 

  3722. 		{ &hf_gtpv2_tra_info_lmsc_a,
    3723. 

  3723. 			{"A","gtpv2.tra_info_lmsc_a",
    3724. 

  3724. 				FT_UINT8, BASE_DEC, NULL, 0x01,
    3725. 

  3725. 				"MSC Server", HFILL}
    3726. 

  3726. 		},
    3727. 

  3727. 		{ &hf_gtpv2_tra_info_lmsc_lu,
    3728. 

  3728. 			{"Iu","gtpv2.tra_info_lmsc_lu",
    3729. 

  3729. 				FT_UINT8, BASE_DEC, NULL, 0x02,
    3730. 

  3730. 				"MSC Server", HFILL}
    3731. 

  3731. 		},
    3732. 

  3732. 		{ &hf_gtpv2_tra_info_lmsc_mc,
    3733. 

  3733. 			{"Mc","gtpv2.tra_info_lmsc_mc",
    3734. 

  3734. 				FT_UINT8, BASE_DEC, NULL, 0x04,
    3735. 

  3735. 				"MSC Server", HFILL}
    3736. 

  3736. 		},
    3737. 

  3737. 		{ &hf_gtpv2_tra_info_lmsc_map_g,
    3738. 

  3738. 			{"MAP-G","gtpv2.tra_info_lmsc_map_g",
    3739. 

  3739. 				FT_UINT8, BASE_DEC, NULL, 0x08,
    3740. 

  3740. 				"MSC Server", HFILL}
    3741. 

  3741. 		},
    3742. 

  3742. 		{ &hf_gtpv2_tra_info_lmsc_map_b,
    3743. 

  3743. 			{"MAP-B","gtpv2.tra_info_lmsc_map_b",
    3744. 

  3744. 				FT_UINT8, BASE_DEC, NULL, 0x10,
    3745. 

  3745. 				"MSC Server", HFILL}
    3746. 

  3746. 		},
    3747. 

  3747. 		{ &hf_gtpv2_tra_info_lmsc_map_e,
    3748. 

  3748. 			{"MAP-E","gtpv2.tra_info_lmsc_map_e",
    3749. 

  3749. 				FT_UINT8, BASE_DEC, NULL, 0x20,
    3750. 

  3750. 				"MSC Server", HFILL}
    3751. 

  3751. 		},
    3752. 

  3752. 		{ &hf_gtpv2_tra_info_lmsc_map_f,
    3753. 

  3753. 			{"MAP-F","gtpv2.tra_info_lmsc_map_f",
    3754. 

  3754. 				FT_UINT8, BASE_DEC, NULL, 0x40,
    3755. 

  3755. 				"MSC Server", HFILL}
    3756. 

  3756. 		},
    3757. 

  3757. 		{ &hf_gtpv2_tra_info_lmsc_cap,
    3758. 

  3758. 			{"CAP","gtpv2.tra_info_lmsc_cap",
    3759. 

  3759. 				FT_UINT8, BASE_DEC, NULL, 0x80,
    3760. 

  3760. 				"MSC Server", HFILL}
    3761. 

  3761. 		},
    3762. 

  3762. 		{ &hf_gtpv2_tra_info_lmsc_map_d,
    3763. 

  3763. 			{"MAP-D","gtpv2.tra_info_lmsc_map_d",
    3764. 

  3764. 				FT_UINT8, BASE_DEC, NULL, 0x01,
    3765. 

  3765. 				"MSC Server", HFILL}
    3766. 

  3766. 		},
    3767. 

  3767. 		{ &hf_gtpv2_tra_info_lmsc_map_c,
    3768. 

  3768. 			{"MAP-C","gtpv2.tra_info_lmsc_map_c",
    3769. 

  3769. 				FT_UINT8, BASE_DEC, NULL, 0x02,
    3770. 

  3770. 				"MSC Server", HFILL}
    3771. 

  3771. 		},
    3772. 

  3772. 		{ &hf_gtpv2_tra_info_lmgw_mc,
    3773. 

  3773. 			{"Mc","gtpv2.tra_info_lmgw_mc",
    3774. 

  3774. 				FT_UINT8, BASE_DEC, NULL, 0x01,
    3775. 

  3775. 				"MGW", HFILL}
    3776. 

  3776. 		},
    3777. 

  3777. 		{ &hf_gtpv2_tra_info_lmgw_nb_up,
    3778. 

  3778. 			{"Nb-UP","gtpv2.tra_info_lmgw_nb_up",
    3779. 

  3779. 				FT_UINT8, BASE_DEC, NULL, 0x2,
    3780. 

  3780. 				"MGW", HFILL}
    3781. 

  3781. 		},
    3782. 

  3782. 		{ &hf_gtpv2_tra_info_lmgw_lu_up,
    3783. 

  3783. 			{"Iu-UP","gtpv2.tra_info_lmgw_lu_up",
    3784. 

  3784. 				FT_UINT8, BASE_DEC, NULL, 0x04,
    3785. 

  3785. 				"MGW", HFILL}
    3786. 

  3786. 		},
    3787. 

  3787. 		{ &hf_gtpv2_tra_info_lsgsn_gb,
    3788. 

  3788. 			{"Gb","gtpv2.tra_info_lsgsn_gb",
    3789. 

  3789. 				FT_UINT8, BASE_DEC, NULL, 0x01,
    3790. 

  3790. 				"SGSN", HFILL}
    3791. 

  3791. 		},
    3792. 

  3792. 		{ &hf_gtpv2_tra_info_lsgsn_lu,
    3793. 

  3793. 			{"Iu","gtpv2.tra_info_lsgsn_lu",
    3794. 

  3794. 				FT_UINT8, BASE_DEC, NULL, 0x02,
    3795. 

  3795. 				"SGSN", HFILL}
    3796. 

  3796. 		},
    3797. 

  3797. 		{ &hf_gtpv2_tra_info_lsgsn_gn,
    3798. 

  3798. 			{"Gn","gtpv2.tra_info_lsgsn_gn",
    3799. 

  3799. 				FT_UINT8, BASE_DEC, NULL, 0x04,
    3800. 

  3800. 				"SGSN", HFILL}
    3801. 

  3801. 		},
    3802. 

  3802. 		{ &hf_gtpv2_tra_info_lsgsn_map_gr,
    3803. 

  3803. 			{"MAP-Gr","gtpv2.tra_info_lsgsn_map_gr",
    3804. 

  3804. 				FT_UINT8, BASE_DEC, NULL, 0x08,
    3805. 

  3805. 				"SGSN", HFILL}
    3806. 

  3806. 		},
    3807. 

  3807. 		{ &hf_gtpv2_tra_info_lsgsn_map_gd,
    3808. 

  3808. 			{"MAP-Gd","gtpv2.tra_info_lsgsn_map_gd",
    3809. 

  3809. 				FT_UINT8, BASE_DEC, NULL, 0x10,
    3810. 

  3810. 				"SGSN", HFILL}
    3811. 

  3811. 		},
    3812. 

  3812. 		{ &hf_gtpv2_tra_info_lsgsn_map_gf,
    3813. 

  3813. 			{"MAP-Gf","gtpv2.tra_info_lsgsn_map_gf",
    3814. 

  3814. 				FT_UINT8, BASE_DEC, NULL, 0x20,
    3815. 

  3815. 				"SGSN", HFILL}
    3816. 

  3816. 		},
    3817. 

  3817. 		{ &hf_gtpv2_tra_info_lsgsn_gs,
    3818. 

  3818. 			{"Gs","gtpv2.tra_info_lsgsn_gs",
    3819. 

  3819. 				FT_UINT8, BASE_DEC, NULL, 0x40,
    3820. 

  3820. 				"SGSN", HFILL}
    3821. 

  3821. 		},
    3822. 

  3822. 		{ &hf_gtpv2_tra_info_lsgsn_ge,
    3823. 

  3823. 			{"Ge","gtpv2.tra_info_lsgsn_ge",
    3824. 

  3824. 				FT_UINT8, BASE_DEC, NULL, 0x80,
    3825. 

  3825. 				"SGSN", HFILL}
    3826. 

  3826. 		},
    3827. 

  3827. 		{ &hf_gtpv2_tra_info_lggsn_gn,
    3828. 

  3828. 			{"Gn","gtpv2.tra_info_lggsn_gn",
    3829. 

  3829. 				FT_UINT8, BASE_DEC, NULL, 0x01,
    3830. 

  3830. 				"GGSN", HFILL}
    3831. 

  3831. 		},
    3832. 

  3832. 		{ &hf_gtpv2_tra_info_lggsn_gi,
    3833. 

  3833. 			{"Gi","gtpv2.tra_info_lggsn_gi",
    3834. 

  3834. 				FT_UINT8, BASE_DEC, NULL, 0x02,
    3835. 

  3835. 				"GGSN", HFILL}
    3836. 

  3836. 		},
    3837. 

  3837. 		{ &hf_gtpv2_tra_info_lggsn_gmb,
    3838. 

  3838. 			{"Gmb","gtpv2.tra_info_lggsn_gmb",
    3839. 

  3839. 				FT_UINT8, BASE_DEC, NULL, 0x04,
    3840. 

  3840. 				"GGSN", HFILL}
    3841. 

  3841. 		},
    3842. 

  3842. 		{ &hf_gtpv2_tra_info_lrnc_lu,
    3843. 

  3843. 			{"Iu","gtpv2.tra_info_lrnc_lu",
    3844. 

  3844. 				FT_UINT8, BASE_DEC, NULL, 0x01,
    3845. 

  3845. 				"RNC", HFILL}
    3846. 

  3846. 		},
    3847. 

  3847. 		{ &hf_gtpv2_tra_info_lrnc_lur,
    3848. 

  3848. 			{"Iur","gtpv2.tra_info_lrnc_lur",
    3849. 

  3849. 				FT_UINT8, BASE_DEC, NULL, 0x02,
    3850. 

  3850. 				"RNC", HFILL}
    3851. 

  3851. 		},
    3852. 

  3852. 		{ &hf_gtpv2_tra_info_lrnc_lub,
    3853. 

  3853. 			{"Iub","gtpv2.tra_info_lrnc_lub",
    3854. 

  3854. 				FT_UINT8, BASE_DEC, NULL, 0x04,
    3855. 

  3855. 				"RNC", HFILL}
    3856. 

  3856. 		},
    3857. 

  3857. 		{ &hf_gtpv2_tra_info_lrnc_uu,
    3858. 

  3858. 			{"Uu","gtpv2.tra_info_lrnc_uu",
    3859. 

  3859. 				FT_UINT8, BASE_DEC, NULL, 0x08,
    3860. 

  3860. 				"RNC", HFILL}
    3861. 

  3861. 		},
    3862. 

  3862. 		{ &hf_gtpv2_tra_info_lbm_sc_gmb,
    3863. 

  3863. 			{"Gmb","gtpv2.tra_info_lbm_sc_gmb",
    3864. 

  3864. 				FT_UINT8, BASE_DEC, NULL, 0x01,
    3865. 

  3865. 				"BM-SC", HFILL}
    3866. 

  3866. 		},
    3867. 

  3867. 		{ &hf_gtpv2_tra_info_lmme_s1_mme,
    3868. 

  3868. 			{"S1-MME","gtpv2.tra_info_lmme_s1_mme",
    3869. 

  3869. 				FT_UINT8, BASE_DEC, NULL, 0x01,
    3870. 

  3870. 				"MME", HFILL}
    3871. 

  3871. 		},
    3872. 

  3872. 		{ &hf_gtpv2_tra_info_lmme_s3,
    3873. 

  3873. 			{"S3","gtpv2.tra_info_lmme_s3",
    3874. 

  3874. 				FT_UINT8, BASE_DEC, NULL, 0x02,
    3875. 

  3875. 				"MME", HFILL}
    3876. 

  3876. 		},
    3877. 

  3877. 		{ &hf_gtpv2_tra_info_lmme_s6a,
    3878. 

  3878. 			{"S6a","gtpv2.tra_info_lmme_s6a",
    3879. 

  3879. 				FT_UINT8, BASE_DEC, NULL, 0x04,
    3880. 

  3880. 				"MME", HFILL}
    3881. 

  3881. 		},
    3882. 

  3882. 		{ &hf_gtpv2_tra_info_lmme_s10,
    3883. 

  3883. 			{"S10","gtpv2.tra_info_lmme_s10",
    3884. 

  3884. 				FT_UINT8, BASE_DEC, NULL, 0x08,
    3885. 

  3885. 				"MME", HFILL}
    3886. 

  3886. 		},
    3887. 

  3887. 		{ &hf_gtpv2_tra_info_lmme_s11,
    3888. 

  3888. 			{"S11","gtpv2.tra_info_lmme_s11",
    3889. 

  3889. 				FT_UINT8, BASE_DEC, NULL, 0x10,
    3890. 

  3890. 				"MME", HFILL}
    3891. 

  3891. 		},
    3892. 

  3892. 		{ &hf_gtpv2_tra_info_lsgw_s4,
    3893. 

  3893. 			{"S4","gtpv2.tra_info_lsgw_s4",
    3894. 

  3894. 				FT_UINT8, BASE_DEC, NULL, 0x01,
    3895. 

  3895. 				"SGW", HFILL}
    3896. 

  3896. 		},
    3897. 

  3897. 		{ &hf_gtpv2_tra_info_lsgw_s5,
    3898. 

  3898. 			{"S5","gtpv2.tra_info_lsgw_s5",
    3899. 

  3899. 				FT_UINT8, BASE_DEC, NULL, 0x02,
    3900. 

  3900. 				"SGW", HFILL}
    3901. 

  3901. 		},
    3902. 

  3902. 		{ &hf_gtpv2_tra_info_lsgw_s8b,
    3903. 

  3903. 			{"S8b","gtpv2.tra_info_lsgw_s8b",
    3904. 

  3904. 				FT_UINT8, BASE_DEC, NULL, 0x04,
    3905. 

  3905. 				"SGW", HFILL}
    3906. 

  3906. 		},
    3907. 

  3907. 		{ &hf_gtpv2_tra_info_lsgw_s11,
    3908. 

  3908. 			{"S11","gtpv2.tra_info_lsgw_s11",
    3909. 

  3909. 				FT_UINT8, BASE_DEC, NULL, 0x08,
    3910. 

  3910. 				"SGW", HFILL}
    3911. 

  3911. 		},
    3912. 

  3912. 		{ &hf_gtpv2_tra_info_lpdn_gw_s2a,
    3913. 

  3913. 			{"S2a","gtpv2.tra_info_lpdn_gw_s2a",
    3914. 

  3914. 				FT_UINT8, BASE_DEC, NULL, 0x01,
    3915. 

  3915. 				"PDN GW", HFILL}
    3916. 

  3916. 		},
    3917. 

  3917. 		{ &hf_gtpv2_tra_info_lpdn_gw_s2b,
    3918. 

  3918. 			{"S2b","gtpv2.tra_info_lpdn_gw_s2b",
    3919. 

  3919. 				FT_UINT8, BASE_DEC, NULL, 0x02,
    3920. 

  3920. 				"PDN GW", HFILL}
    3921. 

  3921. 		},
    3922. 

  3922. 		{ &hf_gtpv2_tra_info_lpdn_gw_s2c,
    3923. 

  3923. 			{"S2c","gtpv2.tra_info_lpdn_gw_s2c",
    3924. 

  3924. 				FT_UINT8, BASE_DEC, NULL, 0x04,
    3925. 

  3925. 				"PDN GW", HFILL}
    3926. 

  3926. 		},
    3927. 

  3927. 		{ &hf_gtpv2_tra_info_lpdn_gw_s5,
    3928. 

  3928. 			{"S5","gtpv2.tra_info_lpdn_gw_s5",
    3929. 

  3929. 				FT_UINT8, BASE_DEC, NULL, 0x08,
    3930. 

  3930. 				"PDN GW", HFILL}
    3931. 

  3931. 		},
    3932. 

  3932. 		{ &hf_gtpv2_tra_info_lpdn_gw_s6c,
    3933. 

  3933. 			{"S6c","gtpv2.tra_info_lpdn_gw_s6c",
    3934. 

  3934. 				FT_UINT8, BASE_DEC, NULL, 0x10,
    3935. 

  3935. 				"PDN GW", HFILL}
    3936. 

  3936. 		},
    3937. 

  3937. 		{ &hf_gtpv2_tra_info_lpdn_gw_gx,
    3938. 

  3938. 			{"Gx","gtpv2.tra_info_lpdn_gw_gx",
    3939. 

  3939. 				FT_UINT8, BASE_DEC, NULL, 0x20,
    3940. 

  3940. 				"PDN GW", HFILL}
    3941. 

  3941. 		},
    3942. 

  3942. 		{ &hf_gtpv2_tra_info_lpdn_gw_s8b,
    3943. 

  3943. 			{"S8b","gtpv2.tra_info_lpdn_gw_s8b",
    3944. 

  3944. 				FT_UINT8, BASE_DEC, NULL, 0x40,
    3945. 

  3945. 				"PDN GW", HFILL}
    3946. 

  3946. 		},
    3947. 

  3947. 		{ &hf_gtpv2_tra_info_lpdn_gw_sgi,
    3948. 

  3948. 			{"SGi","gtpv2.tra_info_lpdn_gw_sgi",
    3949. 

  3949. 				FT_UINT8, BASE_DEC, NULL, 0x80,
    3950. 

  3950. 				"PDN GW", HFILL}
    3951. 

  3951. 		},
    3952. 

  3952. 		{ &hf_gtpv2_tra_info_lenb_s1_mme,
    3953. 

  3953. 			{"S1-MME","gtpv2.tra_info_lenb_s1_mme",
    3954. 

  3954. 				FT_UINT8, BASE_DEC, NULL, 0x01,
    3955. 

  3955. 				"eNB", HFILL}
    3956. 

  3956. 		},
    3957. 

  3957. 		{ &hf_gtpv2_tra_info_lenb_x2,
    3958. 

  3958. 			{"X2","gtpv2.tra_info_lenb_x2",
    3959. 

  3959. 				FT_UINT8, BASE_DEC, NULL, 0x02,
    3960. 

  3960. 				"eNB", HFILL}
    3961. 

  3961. 		},
    3962. 

  3962. 		{ &hf_gtpv2_tra_info_lenb_uu,
    3963. 

  3963. 			{"Uu","gtpv2.tra_info_lenb_uu",
    3964. 

  3964. 				FT_UINT8, BASE_DEC, NULL, 0x04,
    3965. 

  3965. 				"eNB", HFILL}
    3966. 

  3966. 		},
    3967. 

  3967.         { &hf_gtpv2_pdn_ipv4,
    3968. 

  3968.         {"PDN Address and Prefix(IPv4)", "gtpv2.pdn_addr_and_prefix.ipv4",
    3969. 

  3969.         FT_IPv4, BASE_NONE, NULL, 0x0,
    3970. 

  3970.         NULL, HFILL}
    3971. 

  3971.         },
    3972. 

  3972.         { &hf_gtpv2_pdn_ipv6_len,
    3973. 

  3973.         {"IPv6 Prefix Length", "gtpv2.pdn_ipv6_len",
    3974. 

  3974.         FT_UINT8, BASE_DEC, NULL, 0x0,
    3975. 

  3975.         NULL, HFILL}
    3976. 

  3976.         },
    3977. 

  3977.         { &hf_gtpv2_pdn_ipv6,
    3978. 

  3978.         {"PDN Address and Prefix(IPv6)", "gtpv2.pdn_addr_and_prefix.ipv6",
    3979. 

  3979.         FT_BYTES, BASE_NONE, NULL, 0x0,
    3980. 

  3980.         NULL, HFILL}
    3981. 

  3981.         },
    3982. 

  3982.         {&hf_gtpv2_bearer_qos_pvi,
    3983. 

  3983.         {"PVI (Pre-emption Vulnerability)", "gtpv2.bearer_qos_pvi",
    3984. 

  3984.         FT_BOOLEAN, 8, NULL, 0x01,
    3985. 

  3985.         NULL, HFILL}
    3986. 

  3986.         },
    3987. 

  3987.         {&hf_gtpv2_bearer_qos_pl,
    3988. 

  3988.         {"PL (Priority Level)", "gtpv2.bearer_qos_pl",
    3989. 

  3989.         FT_UINT8, BASE_DEC, NULL, 0x3c,
    3990. 

  3990.         NULL, HFILL}
    3991. 

  3991.         },
    3992. 

  3992.         {&hf_gtpv2_bearer_qos_pci,
    3993. 

  3993.         {"PCI (Pre-emption Capability)", "gtpv2.bearer_qos_pci",
    3994. 

  3994.         FT_BOOLEAN, 8, NULL, 0x40,
    3995. 

  3995.         NULL, HFILL}
    3996. 

  3996.         },
    3997. 

  3997.         {&hf_gtpv2_bearer_qos_label_qci,
    3998. 

  3998.         {"Label (QCI)", "gtpv2.bearer_qos_label_qci",
    3999. 

  3999.         FT_UINT8, BASE_DEC, NULL, 0x0,
    4000. 

  4000.         NULL, HFILL}
    4001. 

  4001.         },
    4002. 

  4002.         {&hf_gtpv2_bearer_qos_mbr_up,
    4003. 

  4003.         {"Maximum Bit Rate For Uplink", "gtpv2.bearer_qos_mbr_up",
    4004. 

  4004.         FT_UINT64, BASE_DEC, NULL, 0x0,
    4005. 

  4005.         NULL, HFILL}
    4006. 

  4006.         },
    4007. 

  4007.         {&hf_gtpv2_bearer_qos_mbr_down,
    4008. 

  4008.         {"Maximum Bit Rate For Downlink", "gtpv2.bearer_qos_mbr_down",
    4009. 

  4009.         FT_UINT64, BASE_DEC, NULL, 0x0,
    4010. 

  4010.         NULL, HFILL}
    4011. 

  4011.         },
    4012. 

  4012.         {&hf_gtpv2_bearer_qos_gbr_up,
    4013. 

  4013.         {"Guaranteed Bit Rate For Uplink", "gtpv2.bearer_qos_gbr_up",
    4014. 

  4014.         FT_UINT64, BASE_DEC, NULL, 0x0,
    4015. 

  4015.         NULL, HFILL}
    4016. 

  4016.         },
    4017. 

  4017.         {&hf_gtpv2_bearer_qos_gbr_down,
    4018. 

  4018.         {"Guaranteed Bit Rate For Downlink", "gtpv2.bearer_qos_gbr_down",
    4019. 

  4019.         FT_UINT64, BASE_DEC, NULL, 0x0,
    4020. 

  4020.         NULL, HFILL}
    4021. 

  4021.         },
    4022. 

  4022.         {&hf_gtpv2_flow_qos_label_qci,
    4023. 

  4023.         {"Label (QCI)", "gtpv2.flow_qos_label_qci",
    4024. 

  4024.         FT_UINT8, BASE_DEC, NULL, 0x0,
    4025. 

  4025.         NULL, HFILL}
    4026. 

  4026.         },
    4027. 

  4027.         {&hf_gtpv2_flow_qos_mbr_up,
    4028. 

  4028.         {"Maximum Bit Rate For Uplink", "gtpv2.flow_qos_mbr_up",
    4029. 

  4029.         FT_UINT64, BASE_DEC, NULL, 0x0,
    4030. 

  4030.         NULL, HFILL}
    4031. 

  4031.         },
    4032. 

  4032.         {&hf_gtpv2_flow_qos_mbr_down,
    4033. 

  4033.         {"Maximum Bit Rate For Downlink", "gtpv2.flow_qos_mbr_down",
    4034. 

  4034.         FT_UINT64, BASE_DEC, NULL, 0x0,
    4035. 

  4035.         NULL, HFILL}
    4036. 

  4036.         },
    4037. 

  4037.         {&hf_gtpv2_flow_qos_gbr_up,
    4038. 

  4038.         {"Guaranteed Bit Rate For Uplink", "gtpv2.flow_qos_gbr_up",
    4039. 

  4039.         FT_UINT64, BASE_DEC, NULL, 0x0,
    4040. 

  4040.         NULL, HFILL}
    4041. 

  4041.         },
    4042. 

  4042.         {&hf_gtpv2_flow_qos_gbr_down,
    4043. 

  4043.         {"Guaranteed Bit Rate For Downlink", "gtpv2.flow_qos_gbr_down",
    4044. 

  4044.         FT_UINT64, BASE_DEC, NULL, 0x0,
    4045. 

  4045.         NULL, HFILL}
    4046. 

  4046.         },
    4047. 

  4047.         { &hf_gtpv2_rat_type,
    4048. 

  4048.         {"RAT Type", "gtpv2.rat_type",
    4049. 

  4049.         FT_UINT8, BASE_DEC|BASE_EXT_STRING, &gtpv2_rat_type_vals_ext, 0x0,
    4050. 

  4050.         NULL, HFILL}
    4051. 

  4051.         },
    4052. 

  4052.         { &hf_gtpv2_uli_ecgi_flg,
    4053. 

  4053.         {"ECGI Present Flag)", "gtpv2.uli_ecgi_flg",
    4054. 

  4054.         FT_BOOLEAN, 8, NULL, GTPv2_ULI_ECGI_MASK,
    4055. 

  4055.         NULL, HFILL}
    4056. 

  4056.         },
    4057. 

  4057. 		{ &hf_gtpv2_uli_lai_flg,
    4058. 

  4058.         {"LAI Present Flag)", "gtpv2.uli_lai_flg",
    4059. 

  4059.         FT_BOOLEAN, 8, NULL, GTPv2_ULI_LAI_MASK,
    4060. 

  4060.         NULL, HFILL}
    4061. 

  4061.         },
    4062. 

  4062.         { &hf_gtpv2_uli_tai_flg,
    4063. 

  4063.         {"TAI Present Flag)", "gtpv2.uli_tai_flg",
    4064. 

  4064.         FT_BOOLEAN, 8, NULL, GTPv2_ULI_TAI_MASK,
    4065. 

  4065.         NULL, HFILL}
    4066. 

  4066.         },
    4067. 

  4067.         { &hf_gtpv2_uli_rai_flg,
    4068. 

  4068.         {"RAI Present Flag)", "gtpv2.uli_rai_flg",
    4069. 

  4069.         FT_BOOLEAN, 8, NULL, GTPv2_ULI_RAI_MASK,
    4070. 

  4070.         NULL, HFILL}
    4071. 

  4071.         },
    4072. 

  4072.         { &hf_gtpv2_uli_sai_flg,
    4073. 

  4073.         {"SAI Present Flag)", "gtpv2.uli_sai_flg",
    4074. 

  4074.         FT_BOOLEAN, 8, NULL, GTPv2_ULI_SAI_MASK,
    4075. 

  4075.         NULL, HFILL}
    4076. 

  4076.         },
    4077. 

  4077.         { &hf_gtpv2_uli_cgi_flg,
    4078. 

  4078.         {"CGI Present Flag)", "gtpv2.uli_cgi_flg",
    4079. 

  4079.         FT_BOOLEAN, 8, NULL, GTPv2_ULI_CGI_MASK,
    4080. 

  4080.         NULL, HFILL}
    4081. 

  4081.         },
    4082. 

  4082.         { &hf_gtpv2_uli_cgi_lac,
    4083. 

  4083.         {"Location Area Code", "gtpv2.uli_cgi_lac",
    4084. 

  4084.         FT_UINT16, BASE_DEC, NULL, 0x0,
    4085. 

  4085.         NULL, HFILL}
    4086. 

  4086.         },
    4087. 

  4087.         { &hf_gtpv2_uli_cgi_ci,
    4088. 

  4088.         {"Cell Identity", "gtpv2.uli_cgi_ci",
    4089. 

  4089.         FT_UINT16, BASE_DEC, NULL, 0x0,
    4090. 

  4090.         NULL, HFILL}
    4091. 

  4091.         },
    4092. 

  4092.         { &hf_gtpv2_uli_sai_lac,
    4093. 

  4093.         {"Location Area Code", "gtpv2.uli_sai_lac",
    4094. 

  4094.         FT_UINT16, BASE_DEC, NULL, 0x0,
    4095. 

  4095.         NULL, HFILL}
    4096. 

  4096.         },
    4097. 

  4097.         { &hf_gtpv2_uli_sai_sac,
    4098. 

  4098.         {"Service Area Code", "gtpv2.uli_sai_sac",
    4099. 

  4099.         FT_UINT16, BASE_DEC, NULL, 0x0,
    4100. 

  4100.         NULL, HFILL}
    4101. 

  4101.         },
    4102. 

  4102.         { &hf_gtpv2_uli_rai_lac,
    4103. 

  4103.         {"Location Area Code", "gtpv2.uli_rai_lac",
    4104. 

  4104.         FT_UINT16, BASE_DEC, NULL, 0x0,
    4105. 

  4105.         NULL, HFILL}
    4106. 

  4106.         },
    4107. 

  4107.         { &hf_gtpv2_uli_rai_rac,
    4108. 

  4108.         {"Routing Area Code", "gtpv2.uli_rai_rac",
    4109. 

  4109.         FT_UINT16, BASE_DEC, NULL, 0x0,
    4110. 

  4110.         NULL, HFILL}
    4111. 

  4111.         },
    4112. 

  4112.         { &hf_gtpv2_uli_tai_tac,
    4113. 

  4113.         {"Tracking Area Code", "gtpv2.uli_tai_tac",
    4114. 

  4114.         FT_UINT16, BASE_DEC, NULL, 0x0,
    4115. 

  4115.         NULL, HFILL}
    4116. 

  4116.         },
    4117. 

  4117.         {&hf_gtpv2_uli_ecgi_eci,
    4118. 

  4118.         {"ECI (E-UTRAN Cell Identifier)", "gtpv2.uli_ecgi_eci",
    4119. 

  4119.         FT_UINT32, BASE_HEX, NULL, 0x0,
    4120. 

  4120.         NULL, HFILL}
    4121. 

  4121.         },
    4122. 

  4122. 		{&hf_gtpv2_uli_lai_lac,
    4123. 

  4123.         {"Location Area Code (LAC)", "gtpv2.uli_lai_lac",
    4124. 

  4124.         FT_UINT16, BASE_HEX, NULL, 0x0,
    4125. 

  4125.         NULL, HFILL}
    4126. 

  4126.         },
    4127. 

  4127.         {&hf_gtpv2_uli_ecgi_eci_spare,
    4128. 

  4128.         {"Spare", "gtpv2.uli_ecgi_eci_spare",
    4129. 

  4129.         FT_UINT8, BASE_DEC, NULL, 0x0,
    4130. 

  4130.         NULL, HFILL}
    4131. 

  4131.         },
    4132. 

  4132. 		{ &hf_gtpv2_nsapi,
    4133. 

  4133.         {"NSAPI", "gtpv2.nsapi",
    4134. 

  4134.         FT_UINT8, BASE_DEC, NULL, 0x0f,
    4135. 

  4135.         NULL, HFILL}
    4136. 

  4136.         },
    4137. 

  4137.         {&hf_gtpv2_f_teid_v4,
    4138. 

  4138.         {"V4", "gtpv2.f_teid_v4",
    4139. 

  4139.         FT_BOOLEAN, 8, TFS(&gtpv2_f_teid_v4_vals), 0x80,
    4140. 

  4140.         NULL, HFILL}
    4141. 

  4141.         },
    4142. 

  4142.         {&hf_gtpv2_f_teid_v6,
    4143. 

  4143.         {"V6", "gtpv2.f_teid_v6",
    4144. 

  4144.         FT_BOOLEAN, 8, TFS(&gtpv2_f_teid_v6_vals), 0x40,
    4145. 

  4145.         NULL, HFILL}
    4146. 

  4146.         },
    4147. 

  4147.         {&hf_gtpv2_f_teid_interface_type,
    4148. 

  4148.         {"Interface Type", "gtpv2.f_teid_interface_type",
    4149. 

  4149.         FT_UINT8, BASE_DEC|BASE_EXT_STRING, &gtpv2_f_teid_interface_type_vals_ext, 0x1f,
    4150. 

  4150.         NULL , HFILL}
    4151. 

  4151.         },
    4152. 

  4152.         {&hf_gtpv2_f_teid_gre_key,
    4153. 

  4153.         {"TEID/GRE Key", "gtpv2.f_teid_gre_key",
    4154. 

  4154.         FT_UINT32, BASE_DEC, NULL, 0x0,
    4155. 

  4155.         NULL , HFILL}
    4156. 

  4156.         },
    4157. 

  4157.         { &hf_gtpv2_f_teid_ipv4,
    4158. 

  4158.         {"F-TEID IPv4", "gtpv2.f_teid_ipv4",
    4159. 

  4159.         FT_IPv4, BASE_NONE, NULL, 0x0,
    4160. 

  4160.         NULL, HFILL}
    4161. 

  4161.         },
    4162. 

  4162.         { &hf_gtpv2_f_teid_ipv6,
    4163. 

  4163.         {"F-TEID IPv6", "gtpv2.f_teid_ipv6",
    4164. 

  4164.         FT_IPv6, BASE_NONE, NULL, 0x0,
    4165. 

  4165.         NULL, HFILL}
    4166. 

  4166.         },
    4167. 

  4167. 		{ &hf_gtpv2_tmsi,
    4168. 

  4168.         {"TMSI", "gtpv2.tmsi",
    4169. 

  4169.         FT_UINT32, BASE_HEX, NULL, 0x0,
    4170. 

  4170.         NULL, HFILL}
    4171. 

  4171.         },
    4172. 

  4172. 		{ &hf_gtpv2_hsgw_addr_f_len,
    4173. 

  4173.         {"HSGW Address for forwarding Length", "gtpv2.hsgw_addr_f_len",
    4174. 

  4174.         FT_UINT8, BASE_DEC, NULL, 0x0,
    4175. 

  4175.         NULL, HFILL}
    4176. 

  4176.         },
    4177. 

  4177.         { &hf_gtpv2_hsgw_addr_ipv4,
    4178. 

  4178.         {"HSGW Address for forwarding", "gtpv2.hsgw_addr_ipv4",
    4179. 

  4179.         FT_IPv4, BASE_NONE, NULL, 0x0,
    4180. 

  4180.         NULL, HFILL}
    4181. 

  4181.         },
    4182. 

  4182.         { &hf_gtpv2_hsgw_addr_ipv6,
    4183. 

  4183.         {"HSGW Address for forwarding", "gtpv2.hsgw_addr_ipv6",
    4184. 

  4184.         FT_IPv6, BASE_NONE, NULL, 0x0,
    4185. 

  4185.         NULL, HFILL}
    4186. 

  4186.         },
    4187. 

  4187. 		{ &hf_gtpv2_gre_key,
    4188. 

  4188.         {"GRE Key", "gtpv2.gre_key",
    4189. 

  4189.         FT_UINT32, BASE_DEC, NULL, 0x0,
    4190. 

  4190.         NULL , HFILL}
    4191. 

  4191.         },
    4192. 

  4192.         { &hf_gtpv2_sgw_addr_ipv4,
    4193. 

  4193.         {"Serving GW Address", "gtpv2.sgw_addr_ipv4",
    4194. 

  4194.         FT_IPv4, BASE_NONE, NULL, 0x0,
    4195. 

  4195.         NULL, HFILL}
    4196. 

  4196.         },
    4197. 

  4197.         { &hf_gtpv2_sgw_addr_ipv6,
    4198. 

  4198.         {"Serving GW Address", "gtpv2.sgw_addr_ipv6",
    4199. 

  4199.         FT_IPv6, BASE_NONE, NULL, 0x0,
    4200. 

  4200.         NULL, HFILL}
    4201. 

  4201.         },
    4202. 

  4202. 		{ &hf_gtpv2_sgw_s1u_teid,
    4203. 

  4203.         {"Serving GW S1-U TEID", "gtpv2.sgw_s1u_teid",
    4204. 

  4204.         FT_UINT32, BASE_HEX, NULL, 0x0,
    4205. 

  4205.         NULL, HFILL}
    4206. 

  4206.         },
    4207. 

  4207.         {&hf_gtpv2_delay_value,
    4208. 

  4208.         {"Delay Value (In integer multiples of 50 milliseconds or zero)", "gtpv2.delay_value",
    4209. 

  4209.         FT_UINT8, BASE_DEC, NULL, 0x0,
    4210. 

  4210.         NULL, HFILL}
    4211. 

  4211.         },
    4212. 

  4212.         {&hf_gtpv2_charging_id,
    4213. 

  4213.         {"Charging id", "gtpv2.charging_id",
    4214. 

  4214.         FT_UINT32, BASE_DEC, NULL, 0x0,
    4215. 

  4215.         NULL, HFILL}
    4216. 

  4216.         },
    4217. 

  4217.         {&hf_gtpv2_charging_characteristic,
    4218. 

  4218.         {"Charging Characteristic", "gtpv2.charging_characteristic",
    4219. 

  4219.         FT_UINT16, BASE_HEX, NULL, 0xffff,
    4220. 

  4220.         NULL, HFILL}
    4221. 

  4221.         },
    4222. 

  4222.         {&hf_gtpv2_bearer_flag_ppc,
    4223. 

  4223.             {"PPC (Prohibit Payload Compression)", "gtpv2.bearer_flag.ppc",
    4224. 

  4224. 				FT_BOOLEAN, 8, NULL, 0x01,
    4225. 

  4225. 				NULL, HFILL}
    4226. 

  4226.         },
    4227. 

  4227.         {&hf_gtpv2_bearer_flag_vb,
    4228. 

  4228.         {"VB (Voice Bearer)", "gtpv2.bearer_flag.vb",
    4229. 

  4229.         FT_BOOLEAN, 8, NULL, 0x02,
    4230. 

  4230.         NULL, HFILL}
    4231. 

  4231.         },
    4232. 

  4232.         {&hf_gtpv2_pti,
    4233. 

  4233.         {"Procedure Transaction Id", "gtpv2.pti",
    4234. 

  4234.         FT_UINT8, BASE_DEC, NULL, 0x0,
    4235. 

  4235.         NULL, HFILL}
    4236. 

  4236.         },
    4237. 

  4237. 		/* MM Context */
    4238. 

  4238. 		{ &hf_gtpv2_mm_context_sm,
    4239. 

  4239. 			{"Security Mode", "gtpv2.mm_context_sm",
    4240. 

  4240. 				FT_UINT8, BASE_DEC, VALS(gtpv2_mm_context_security_mode), 0xe0,
    4241. 

  4241. 				NULL, HFILL}
    4242. 

  4242. 		},
    4243. 

  4243. 		{ &hf_gtpv2_mm_context_nhi,
    4244. 

  4244. 			{"NHI(Next Hop Indicator)", "gtpv2.mm_context_nhi",
    4245. 

  4245. 				FT_BOOLEAN, 8, TFS(&gtpv2_nhi_vals), 0x10,
    4246. 

  4246. 				NULL, HFILL}
    4247. 

  4247. 		},
    4248. 

  4248. 		{ &hf_gtpv2_mm_context_drxi,
    4249. 

  4249. 			{"DRXI", "gtpv2.mm_context_drxi",
    4250. 

  4250. 				FT_UINT8, BASE_DEC, NULL, 0x08,
    4251. 

  4251. 				NULL, HFILL}
    4252. 

  4252. 		},
    4253. 

  4253. 		{ &hf_gtpv2_mm_context_cksn,
    4254. 

  4254. 			{"CKSN", "gtpv2.mm_context_cksn",
    4255. 

  4255. 				FT_UINT8, BASE_DEC, NULL, 0x07,
    4256. 

  4256. 				NULL, HFILL}
    4257. 

  4257. 		},
    4258. 

  4258. 		{ &hf_gtpv2_mm_context_cksn_ksi,
    4259. 

  4259. 			{"CKSN/KSI", "gtpv2.mm_context_cksn_ksi",
    4260. 

  4260. 				FT_UINT8, BASE_DEC, NULL, 0x07,
    4261. 

  4261. 				NULL, HFILL}
    4262. 

  4262. 		},
    4263. 

  4263. 		{ &hf_gtpv2_mm_context_ksi_a,
    4264. 

  4264. 			{"KSI_asme", "gtpv2.mm_context_ksi_a",
    4265. 

  4265. 				FT_UINT8, BASE_DEC, NULL, 0x07,
    4266. 

  4266. 				NULL, HFILL}
    4267. 

  4267. 		},
    4268. 

  4268. 		{ &hf_gtpv2_mm_context_nr_tri,
    4269. 

  4269. 			{"Number of Triplet", "gtpv2.mm_context_nr_tri",
    4270. 

  4270. 				FT_UINT8, BASE_DEC, NULL, 0xe0,
    4271. 

  4271. 				NULL, HFILL}
    4272. 

  4272. 		},
    4273. 

  4273. 		{ &hf_gtpv2_mm_context_unipa,
    4274. 

  4274. 			{"Used NAS integrity protection algorithm", "gtpv2.mm_context_unipa",
    4275. 

  4275. 				FT_UINT8, BASE_DEC, VALS(gtpv2_mm_context_unipa_vals), 0x70,
    4276. 

  4276. 				NULL, HFILL}
    4277. 

  4277. 		},
    4278. 

  4278. 

  4279. 		{ &hf_gtpv2_mm_context_unc,
    4280. 

  4280. 			{"Used NAS Cipher", "gtpv2.mm_context_unc",
    4281. 

  4281. 				FT_UINT8, BASE_DEC, VALS(gtpv2_mm_context_unc_vals), 0x0f,
    4282. 

  4282. 				NULL, HFILL}
    4283. 

  4283. 		},
    4284. 

  4284. 		{ &hf_gtpv2_mm_context_nas_dl_cnt,
    4285. 

  4285. 			{"NAS Downlink Count", "gtpv2.mm_context_nas_dl_cnt",
    4286. 

  4286. 				FT_UINT24, BASE_DEC, NULL, 0x0,
    4287. 

  4287. 				NULL, HFILL}
    4288. 

  4288. 		},
    4289. 

  4289. 		{ &hf_gtpv2_mm_context_nas_ul_cnt,
    4290. 

  4290. 			{"NAS Uplink Count", "gtpv2.mm_context_nas_ul_cnt",
    4291. 

  4291. 				FT_UINT24, BASE_DEC, NULL, 0x0,
    4292. 

  4292. 				NULL, HFILL}
    4293. 

  4293. 		},
    4294. 

  4294. 

  4295. 		{ &hf_gtpv2_mm_context_ksi,
    4296. 

  4296. 			{"KSI", "gtpv2.mm_context_ksi",
    4297. 

  4297. 				FT_UINT8, BASE_DEC, NULL, 0x07,
    4298. 

  4298. 				NULL, HFILL}
    4299. 

  4299. 		},
    4300. 

  4300. 		{ &hf_gtpv2_mm_context_nr_qui,
    4301. 

  4301. 			{"Number of Quintuplets", "gtpv2.mm_context_nr_qui",
    4302. 

  4302. 				FT_UINT8, BASE_DEC, NULL, 0xe0,
    4303. 

  4303. 				NULL, HFILL}
    4304. 

  4304. 		},
    4305. 

  4305. 

  4306. 		{ &hf_gtpv2_mm_context_nr_qua,
    4307. 

  4307. 			{"Number of Quadruplet", "gtpv2.mm_context_nr_qua",
    4308. 

  4308. 				FT_UINT8, BASE_DEC, NULL, 0x1c,
    4309. 

  4309. 				NULL, HFILL}
    4310. 

  4310. 		},
    4311. 

  4311.         {&hf_gtpv2_ue_time_zone_dst,
    4312. 

  4312.         {"Daylight Saving Time","gtpv2.ue_time_zone_dst",
    4313. 

  4313.         FT_UINT8, BASE_DEC, VALS(gtpv2_ue_time_zone_dst_vals),0x03,
    4314. 

  4314.         NULL, HFILL}
    4315. 

  4315.         },
    4316. 

  4316. 		{ &hf_gtpv2_fq_csid_type,
    4317. 

  4317. 			{"Node-ID Type", "gtpv2.fq_csid_type",
    4318. 

  4318. 				FT_UINT8, BASE_DEC, NULL, 0xf0,
    4319. 

  4319. 				NULL, HFILL}
    4320. 

  4320. 		},
    4321. 

  4321. 		{ &hf_gtpv2_fq_csid_nr,
    4322. 

  4322. 			{"Number of CSIDs", "gtpv2.fq_csid_nr",
    4323. 

  4323. 				FT_UINT8, BASE_DEC, NULL, 0x0f,
    4324. 

  4324. 				NULL, HFILL}
    4325. 

  4325. 		},
    4326. 

  4326. 		{ &hf_gtpv2_fq_csid_ipv4,
    4327. 

  4327. 			{"Node-ID (IPv4)", "gtpv2.fq_csid_ipv4",
    4328. 

  4328. 				FT_IPv4, BASE_NONE, NULL, 0x0,
    4329. 

  4329. 				NULL, HFILL}
    4330. 

  4330. 		},
    4331. 

  4331. 		{ &hf_gtpv2_fq_csid_ipv6,
    4332. 

  4332. 			{"Node-ID (IPv6)", "gtpv2.fq_csid_ipv6",
    4333. 

  4333. 				FT_IPv6, BASE_NONE, NULL, 0x0,
    4334. 

  4334. 				NULL, HFILL}
    4335. 

  4335. 		},
    4336. 

  4336. 		{ &hf_gtpv2_fq_csid_id,
    4337. 

  4337. 			{"CSID", "gtpv2.fq_csid_id",
    4338. 

  4338. 				FT_UINT16, BASE_DEC, NULL, 0x0,
    4339. 

  4339. 				NULL, HFILL}
    4340. 

  4340. 		},
    4341. 

  4341. 		{ &hf_gtpv2_complete_req_msg_type,
    4342. 

  4342.         {"Complete Request Message Type","gtpv2.complete_req_msg_type",
    4343. 

  4343.         FT_UINT8, BASE_DEC, VALS(gtpv2_complete_req_msg_type_vals),0x0,
    4344. 

  4344.         NULL, HFILL}
    4345. 

  4345.         },
    4346. 

  4346. 		{&hf_gtpv2_mme_grp_id,
    4347. 

  4347.         {"MME Group ID","gtpv2.mme_grp_id",
    4348. 

  4348.         FT_UINT16, BASE_DEC, NULL,0x0,
    4349. 

  4349.         NULL, HFILL}
    4350. 

  4350.         },
    4351. 

  4351. 		{ &hf_gtpv2_mme_code,
    4352. 

  4352.         {"MME Code","gtpv2.mme_code",
    4353. 

  4353.         FT_UINT8, BASE_DEC, NULL,0x0,
    4354. 

  4354.         NULL, HFILL}
    4355. 

  4355.         },
    4356. 

  4356. 		{ &hf_gtpv2_m_tmsi,
    4357. 

  4357.         {"M-TMSI","gtpv2.m_tmsi",
    4358. 

  4358.         FT_BYTES, BASE_NONE, NULL,0x0,
    4359. 

  4359.         NULL, HFILL}
    4360. 

  4360.         },
    4361. 

  4361. 		{ &hf_gtpv2_container_type,
    4362. 

  4362.         {"Container Type","gtpv2.container_type",
    4363. 

  4363.         FT_UINT8, BASE_DEC, VALS(gtpv2_container_type_vals),0x0f,
    4364. 

  4364.         NULL, HFILL}
    4365. 

  4365.         },
    4366. 

  4366. 		{ &hf_gtpv2_cause_type,
    4367. 

  4367.         {"Cause Type","gtpv2.cause_type",
    4368. 

  4368.         FT_UINT8, BASE_DEC|BASE_EXT_STRING, &gtpv2_cause_type_vals_ext,0x0f,
    4369. 

  4369.         NULL, HFILL}
    4370. 

  4370.         },
    4371. 

  4371. 		{ &hf_gtpv2_CauseRadioNetwork,
    4372. 

  4372.         {"Radio Network Layer Cause","gtpv2.CauseRadioNetwork",
    4373. 

  4373.         FT_UINT8, BASE_DEC, VALS(s1ap_CauseRadioNetwork_vals),0x0,
    4374. 

  4374.         NULL, HFILL}
    4375. 

  4375.         },
    4376. 

  4376. 		{ &hf_gtpv2_CauseTransport,
    4377. 

  4377.         {"Transport Layer Cause","gtpv2.CauseTransport",
    4378. 

  4378.         FT_UINT8, BASE_DEC, VALS(s1ap_CauseTransport_vals),0x0,
    4379. 

  4379.         NULL, HFILL}
    4380. 

  4380.         },
    4381. 

  4381. 		{ &hf_gtpv2_CauseNas,
    4382. 

  4382.         {"NAS Cause","gtpv2.CauseNas",
    4383. 

  4383.         FT_UINT8, BASE_DEC, VALS(s1ap_CauseNas_vals),0x0,
    4384. 

  4384.         NULL, HFILL}
    4385. 

  4385.         },
    4386. 

  4386. 		{ &hf_gtpv2_CauseMisc,
    4387. 

  4387.         {"Miscellaneous Cause","gtpv2.CauseMisc",
    4388. 

  4388.         FT_UINT8, BASE_DEC, VALS(s1ap_CauseMisc_vals),0x0,
    4389. 

  4389.         NULL, HFILL}
    4390. 

  4390.         },
    4391. 

  4391. 		{ &hf_gtpv2_target_type,
    4392. 

  4392.         {"Target Type","gtpv2.target_type",
    4393. 

  4393.         FT_UINT8, BASE_DEC|BASE_EXT_STRING, &gtpv2_target_type_vals_ext,0x0,
    4394. 

  4394.         NULL, HFILL}
    4395. 

  4395.         },
    4396. 

  4396. 		{&hf_gtpv2_macro_enodeb_id,
    4397. 

  4397.         {"Macro eNodeB ID","gtpv2.macro_enodeb_id",
    4398. 

  4398.         FT_UINT24, BASE_HEX, NULL,0x0fffff,
    4399. 

  4399.         NULL, HFILL}
    4400. 

  4400.         },
    4401. 

  4401. 		{ &hf_gtpv2_CauseProtocol,
    4402. 

  4402.         {"Protocol Cause","gtpv2.CauseProtocol",
    4403. 

  4403.         FT_UINT8, BASE_DEC, VALS(s1ap_CauseProtocol_vals),0x0,
    4404. 

  4404.         NULL, HFILL}
    4405. 

  4405.         },
    4406. 

  4406.         {&hf_gtpv2_apn_rest,
    4407. 

  4407.         {"APN Restriction", "gtpv2.apn_rest",
    4408. 

  4408.         FT_UINT8, BASE_DEC, NULL, 0x0,
    4409. 

  4409.         NULL, HFILL}
    4410. 

  4410.         },
    4411. 

  4411.         {&hf_gtpv2_selec_mode,
    4412. 

  4412.         {"Selection Mode","gtpv2.selec_mode",
    4413. 

  4413.         FT_UINT8, BASE_DEC, VALS(gtpv2_selec_mode_vals),0x03,
    4414. 

  4414.         NULL, HFILL}
    4415. 

  4415.         },
    4416. 

  4416. 		{ &hf_gtpv2_source_type,
    4417. 

  4417.         {"Source Type", "gtpv2.source_type",
    4418. 

  4418.         FT_UINT8, BASE_DEC, NULL, 0x0,
    4419. 

  4419.         NULL, HFILL}
    4420. 

  4420.         },
    4421. 

  4421.         {&hf_gtpv2_bearer_control_mode,
    4422. 

  4422.         {"Bearer Control Mode","gtpv2.bearer_control_mode",
    4423. 

  4423.         FT_UINT8, BASE_DEC, VALS(gtpv2_bearer_control_mode_vals),0x0,
    4424. 

  4424.         NULL, HFILL}
    4425. 

  4425.         },
    4426. 

  4426.         { &hf_gtpv2_cng_rep_act,
    4427. 

  4427.         {"Change Reporting Action", "gtpv2.cng_rep_act",
    4428. 

  4428.         FT_UINT8, BASE_DEC, VALS(gtpv2_cng_rep_act_vals), 0x0,
    4429. 

  4429.         NULL, HFILL}
    4430. 

  4430.         },
    4431. 

  4431.         { &hf_gtpv2_node_type,
    4432. 

  4432.         {"Node Type", "gtpv2.node_type",
    4433. 

  4433.         FT_UINT8, BASE_DEC, VALS(gtpv2_node_type_vals), 0x0,
    4434. 

  4434.         NULL, HFILL}
    4435. 

  4435.         },
    4436. 

  4436. 		{&hf_gtpv2_fqdn,
    4437. 

  4437.         {"FQDN", "gtpv2.fqdn",
    4438. 

  4438.         FT_STRING, BASE_NONE, NULL, 0x0,
    4439. 

  4439.         NULL, HFILL}
    4440. 

  4440.         },
    4441. 

  4441.         { &hf_gtpv2_enterprise_id,
    4442. 

  4442.         {"Enterprise ID", "gtpv2.enterprise_id",
    4443. 

  4443.         FT_UINT16, BASE_DEC|BASE_EXT_STRING, &sminmpec_values_ext, 0x0,
    4444. 

  4444.         NULL, HFILL}
    4445. 

  4445.         },
    4446. 

  4446.         { &hf_gtpv2_address_digits,
    4447. 

  4447.             { "Address digits", "gtpv2.address_digits",
    4448. 

  4448.             FT_STRING, BASE_NONE, NULL, 0,
    4449. 

  4449.             NULL, HFILL }
    4450. 

  4450.         },
    4451. 

  4451. 		{ &hf_gtpv2_ti,
    4452. 

  4452.         {"Transaction Identifier", "gtpv2.ti",
    4453. 

  4453.         FT_BYTES, BASE_NONE, NULL, 0x0,
    4454. 

  4454.         NULL, HFILL}
    4455. 

  4455.         },
    4456. 

  4456. 

  4457.      };
    4458. 

  4458. 

  4459.     static gint *ett_gtpv2_array[] = {
    4460. 

  4460.         &ett_gtpv2,
    4461. 

  4461.         &ett_gtpv2_flags,
    4462. 

  4462.         &ett_gtpv2_ie,
    4463. 

  4463. 	&ett_gtpv2_uli_flags,
    4464. 

  4464. 	&ett_gtpv2_uli_field,
    4465. 

  4465.         &ett_gtpv2_bearer_ctx,
    4466. 

  4466. 	&ett_gtpv2_PDN_conn,
    4467. 

  4467. 	&ett_gtpv2_mm_context_flag,
    4468. 

  4468.         &ett_gtpv2_pdn_numbers_nsapi,
    4469. 

  4469. 	&ett_gtpv2_tra_info_trigg,
    4470. 

  4470.         &ett_gtpv2_tra_info_trigg_msc_server,
    4471. 

  4471.         &ett_gtpv2_tra_info_trigg_mgw,
    4472. 

  4472.         &ett_gtpv2_tra_info_trigg_sgsn,
    4473. 

  4473.         &ett_gtpv2_tra_info_trigg_ggsn,
    4474. 

  4474.         &ett_gtpv2_tra_info_trigg_bm_sc,
    4475. 

  4475. 	&ett_gtpv2_tra_info_trigg_sgw_mme,
    4476. 

  4476. 	&ett_gtpv2_tra_info_interfaces,
    4477. 

  4477. 	&ett_gtpv2_tra_info_interfaces_imsc_server,
    4478. 

  4478. 	&ett_gtpv2_tra_info_interfaces_lmgw,
    4479. 

  4479. 	&ett_gtpv2_tra_info_interfaces_lsgsn,
    4480. 

  4480. 	&ett_gtpv2_tra_info_interfaces_lggsn,
    4481. 

  4481. 	&ett_gtpv2_tra_info_interfaces_lrnc,
    4482. 

  4482. 	&ett_gtpv2_tra_info_interfaces_lbm_sc,
    4483. 

  4483. 	&ett_gtpv2_tra_info_interfaces_lmme,
    4484. 

  4484. 	&ett_gtpv2_tra_info_interfaces_lsgw,
    4485. 

  4485. 	&ett_gtpv2_tra_info_interfaces_lpdn_gw,
    4486. 

  4486. 	&ett_gtpv2_tra_info_interfaces_lpdn_lenb,
    4487. 

  4487. 	&ett_gtpv2_tra_info_ne_types
    4488. 

  4488. 

  4489.     };
    4490. 

  4490. 

  4491.     proto_gtpv2 = proto_register_protocol("GPRS Tunneling Protocol V2", "GTPv2", "gtpv2");
    4492. 

  4492.     proto_register_field_array(proto_gtpv2, hf_gtpv2, array_length(hf_gtpv2));
    4493. 

  4493.     proto_register_subtree_array(ett_gtpv2_array, array_length(ett_gtpv2_array));
    4494. 

  4494.     /* AVP Code: 22 3GPP-User-Location-Info */
    4495. 

  4495.     dissector_add_uint("diameter.3gpp", 22, new_create_dissector_handle(dissect_diameter_3gpp_uli, proto_gtpv2));
    4496. 

  4496. 

  4497.     register_dissector("gtpv2", dissect_gtpv2, proto_gtpv2);
    4498. 

  4498. }
    4499. 

  4499. 

  4500. void
    4501. 

  4501. proto_reg_handoff_gtpv2(void)
    4502. 

  4502. {
    4503. 

  4503. 	nas_eps_handle = find_dissector("nas-eps");
    4504. 

  4504. }
    4505.